Loading TTF file with stb_truetype. Broke setup API slightly. Font baked, packed with space for custom data. Embeds compressed ProggyClean.

examples/directx11_example/directx11_example.vcxproj

@@ -68,8 +68,6 @@
   <ItemGroup>
     <ClInclude Include="..\..\imconfig.h" />
     <ClInclude Include="..\..\imgui.h" />
-    <ClInclude Include="..\..\stb_textedit.h" />
-    <ClInclude Include="..\shared\stb_image.h" />
   </ItemGroup>
   <ItemGroup>
     <ClCompile Include="..\..\imgui.cpp" />

examples/directx11_example/directx11_example.vcxproj.filters

@@ -15,12 +15,6 @@
     <ClInclude Include="..\..\imgui.h">
       <Filter>imgui</Filter>
     </ClInclude>
-    <ClInclude Include="..\..\stb_textedit.h">
-      <Filter>imgui</Filter>
-    </ClInclude>
-    <ClInclude Include="..\shared\stb_image.h">
-      <Filter>sources</Filter>
-    </ClInclude>
   </ItemGroup>
   <ItemGroup>
     <ClCompile Include="..\..\imgui.cpp">

examples/directx11_example/main.cpp

@@ -1,9 +1,6 @@
 // ImGui - standalone example application for DirectX 11
 
 #include <windows.h>
-#define STB_IMAGE_STATIC
-#define STB_IMAGE_IMPLEMENTATION
-#include "../shared/stb_image.h"    // for .png loading
 #include "../../imgui.h"
 
 // DirectX 11
@@ -290,8 +287,9 @@ HRESULT InitDeviceD3D(HWND hWnd)
             \
             float4 main(PS_INPUT input) : SV_Target\
             {\
-                float4 out_col = texture0.Sample(sampler0, input.uv);\
-                return input.col * out_col;\
+                float4 out_col = input.col; \
+                out_col.w *= texture0.Sample(sampler0, input.uv).w; \
+                return out_col; \
             }";
 
         D3DCompile(pixelShader, strlen(pixelShader), NULL, NULL, NULL, "main", "ps_5_0", 0, 0, &g_pPixelShaderBlob, NULL);
@@ -427,23 +425,22 @@ void InitImGui()
         }
     }
 
-    // Load font texture
-    // Default font (embedded in code)
-    const void* png_data;
-    unsigned int png_size;
-    ImGui::GetDefaultFontData(NULL, NULL, &png_data, &png_size);
-    int tex_x, tex_y, tex_comp;
-    void* tex_data = stbi_load_from_memory((const unsigned char*)png_data, (int)png_size, &tex_x, &tex_y, &tex_comp, 0);
-    IM_ASSERT(tex_data != NULL);
+    // Load font
+    io.Font = new ImFont();
+    io.Font->LoadDefault();
+    //io.Font->LoadFromFileTTF("myfont.ttf", font_size_px, ImFont::GetGlyphRangesDefault());
+    //io.Font->DisplayOffset.y += 0.0f;
+	IM_ASSERT(io.Font->IsLoaded());
 
+    // Copy font texture
     {
         D3D11_TEXTURE2D_DESC desc;
         ZeroMemory(&desc, sizeof(desc));
-        desc.Width = tex_x;
-        desc.Height = tex_y;
+        desc.Width = io.Font->TexWidth;
+        desc.Height = io.Font->TexHeight;
         desc.MipLevels = 1;
         desc.ArraySize = 1;
-        desc.Format = DXGI_FORMAT_R8G8B8A8_UNORM;
+        desc.Format = DXGI_FORMAT_A8_UNORM;
         desc.SampleDesc.Count = 1;
         desc.Usage = D3D11_USAGE_DEFAULT;
         desc.BindFlags = D3D11_BIND_SHADER_RESOURCE;
@@ -451,15 +448,15 @@ void InitImGui()
 
         ID3D11Texture2D *pTexture = NULL;
         D3D11_SUBRESOURCE_DATA subResource;
-        subResource.pSysMem = tex_data;
-        subResource.SysMemPitch = tex_x * 4;
+        subResource.pSysMem = io.Font->TexPixels;
+        subResource.SysMemPitch = desc.Width * 1;
         subResource.SysMemSlicePitch = 0;
         g_pd3dDevice->CreateTexture2D(&desc, &subResource, &pTexture);
 
         // Create texture view
         D3D11_SHADER_RESOURCE_VIEW_DESC srvDesc;
         ZeroMemory(&srvDesc, sizeof(srvDesc));
-        srvDesc.Format = DXGI_FORMAT_R8G8B8A8_UNORM;
+        srvDesc.Format = DXGI_FORMAT_A8_UNORM;
         srvDesc.ViewDimension = D3D11_SRV_DIMENSION_TEXTURE2D;
         srvDesc.Texture2D.MipLevels = desc.MipLevels;
         srvDesc.Texture2D.MostDetailedMip = 0;
@@ -471,7 +468,7 @@ void InitImGui()
     {
         D3D11_SAMPLER_DESC desc;
         ZeroMemory(&desc, sizeof(desc));
-        desc.Filter = D3D11_FILTER_MIN_MAG_MIP_POINT;
+        desc.Filter = D3D11_FILTER_MIN_MAG_POINT_MIP_LINEAR;
         desc.AddressU = D3D11_TEXTURE_ADDRESS_WRAP;
         desc.AddressV = D3D11_TEXTURE_ADDRESS_WRAP;
         desc.AddressW = D3D11_TEXTURE_ADDRESS_WRAP;

examples/directx9_example/directx9_example.vcxproj

@@ -76,7 +76,6 @@
   <ItemGroup>
     <ClInclude Include="..\..\imconfig.h" />
     <ClInclude Include="..\..\imgui.h" />
-    <ClInclude Include="..\..\stb_textedit.h" />
   </ItemGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
   <ImportGroup Label="ExtensionTargets">

examples/directx9_example/directx9_example.vcxproj.filters

@@ -24,8 +24,5 @@
     <ClInclude Include="..\..\imgui.h">
       <Filter>imgui</Filter>
     </ClInclude>
-    <ClInclude Include="..\..\stb_textedit.h">
-      <Filter>imgui</Filter>
-    </ClInclude>
   </ItemGroup>
 </Project>

examples/directx9_example/main.cpp

@@ -73,12 +73,13 @@ static void ImImpl_RenderDrawLists(ImDrawList** const cmd_lists, int cmd_lists_c
 
     // Setup texture
     g_pd3dDevice->SetTexture( 0, g_pTexture );
-    g_pd3dDevice->SetTextureStageState( 0, D3DTSS_COLOROP, D3DTOP_MODULATE );
-    g_pd3dDevice->SetTextureStageState( 0, D3DTSS_COLORARG1, D3DTA_TEXTURE );
-    g_pd3dDevice->SetTextureStageState( 0, D3DTSS_COLORARG2, D3DTA_DIFFUSE );
+    g_pd3dDevice->SetTextureStageState( 0, D3DTSS_COLOROP, D3DTOP_SELECTARG1 );
+    g_pd3dDevice->SetTextureStageState( 0, D3DTSS_COLORARG1, D3DTA_DIFFUSE );
     g_pd3dDevice->SetTextureStageState( 0, D3DTSS_ALPHAOP, D3DTOP_MODULATE );
     g_pd3dDevice->SetTextureStageState( 0, D3DTSS_ALPHAARG1, D3DTA_TEXTURE );
     g_pd3dDevice->SetTextureStageState( 0, D3DTSS_ALPHAARG2, D3DTA_DIFFUSE );
+    g_pd3dDevice->SetSamplerState( 0, D3DSAMP_MINFILTER, D3DTEXF_LINEAR );
+    g_pd3dDevice->SetSamplerState( 0, D3DSAMP_MAGFILTER, D3DTEXF_LINEAR );
 
     // Setup orthographic projection matrix
     D3DXMATRIXA16 mat;
@@ -213,15 +214,21 @@ void InitImGui()
         return;
     }
 
-    // Load font texture
-    const void* png_data;
-    unsigned int png_size;
-    ImGui::GetDefaultFontData(NULL, NULL, &png_data, &png_size);
-    if (D3DXCreateTextureFromFileInMemory(g_pd3dDevice, png_data, png_size, &g_pTexture) < 0)
-    {
-        IM_ASSERT(0);
-        return;
-    }
+    // Load font
+    io.Font = new ImFont();
+    io.Font->LoadDefault();
+    //io.Font->LoadFromFileTTF("myfont.ttf", font_size_px, ImFont::GetGlyphRangesDefault());
+	io.Font->LoadFromFileTTF("../../extra_fonts/ArialUni.ttf", 20.0f, ImFont::GetGlyphRangesDefault());
+    //io.Font->DisplayOffset.y += 0.0f;
+    IM_ASSERT(io.Font->IsLoaded());
+
+    // Copy font texture
+    if (D3DXCreateTexture(g_pd3dDevice, io.Font->TexWidth, io.Font->TexHeight, 1, D3DUSAGE_DYNAMIC, D3DFMT_A8, D3DPOOL_DEFAULT, &g_pTexture) < 0) { IM_ASSERT(0); return; }
+    D3DLOCKED_RECT tex_locked_rect;
+    if (g_pTexture->LockRect(0, &tex_locked_rect, NULL, 0) != D3D_OK) {	IM_ASSERT(0); return; }
+    for (int y = 0; y < io.Font->TexHeight; y++)
+        memcpy((unsigned char *)tex_locked_rect.pBits + tex_locked_rect.Pitch * y, io.Font->TexPixels + io.Font->TexWidth * y, io.Font->TexWidth);
+    g_pTexture->UnlockRect(0);
 }
 
 INT64 ticks_per_second = 0;
@@ -330,7 +337,7 @@ int WINAPI wWinMain(HINSTANCE hInst, HINSTANCE, LPWSTR, int)
         // 3. Show the ImGui test window. Most of the sample code is in ImGui::ShowTestWindow()
         if (show_test_window)
         {
-			ImGui::SetNextWindowPos(ImVec2(650, 20), ImGuiSetCondition_FirstUseEver);
+            ImGui::SetNextWindowPos(ImVec2(650, 20), ImGuiSetCondition_FirstUseEver);
             ImGui::ShowTestWindow(&show_test_window);
         }
 

examples/opengl3_example/main.cpp

@@ -8,9 +8,7 @@
 #endif
 
 #include "../../imgui.h"
-#define STB_IMAGE_STATIC
-#define STB_IMAGE_IMPLEMENTATION
-#include "../shared/stb_image.h"        // stb_image.h for PNG loading
+#include <stdio.h>
 
 // Glfw/Glew
 #define GLEW_STATIC
@@ -24,7 +22,7 @@ static bool mousePressed[2] = { false, false };
 
 // Shader variables
 static int shader_handle, vert_handle, frag_handle;
-static int texture_location, ortho_location;
+static int texture_location, proj_mtx_location;
 static int position_location, uv_location, colour_location;
 static size_t vbo_max_size = 20000;
 static unsigned int vbo_handle, vao_handle;
@@ -62,7 +60,7 @@ static void ImImpl_RenderDrawLists(ImDrawList** const cmd_lists, int cmd_lists_c
     };
     glUseProgram(shader_handle);
     glUniform1i(texture_location, 0);
-    glUniformMatrix4fv(ortho_location, 1, GL_FALSE, &ortho_projection[0][0]);
+    glUniformMatrix4fv(proj_mtx_location, 1, GL_FALSE, &ortho_projection[0][0]);
 
     // Grow our buffer according to what we need
     size_t total_vtx_count = 0;
@@ -184,28 +182,29 @@ void InitGL()
 
     const GLchar *vertex_shader =
         "#version 330\n"
-        "uniform mat4 ortho;\n"
+        "uniform mat4 ProjMtx;\n"
         "in vec2 Position;\n"
         "in vec2 UV;\n"
-        "in vec4 Colour;\n"
+        "in vec4 Color;\n"
         "out vec2 Frag_UV;\n"
-        "out vec4 Frag_Colour;\n"
+        "out vec4 Frag_Color;\n"
         "void main()\n"
         "{\n"
         "	Frag_UV = UV;\n"
-        "	Frag_Colour = Colour;\n"
-        "	gl_Position = ortho*vec4(Position.xy,0,1);\n"
+        "	Frag_Color = Color;\n"
+        "	gl_Position = ProjMtx * vec4(Position.xy,0,1);\n"
         "}\n";
 
     const GLchar* fragment_shader =
         "#version 330\n"
         "uniform sampler2D Texture;\n"
         "in vec2 Frag_UV;\n"
-        "in vec4 Frag_Colour;\n"
-        "out vec4 FragColor;\n"
+        "in vec4 Frag_Color;\n"
+        "out vec4 Out_Color;\n"
         "void main()\n"
         "{\n"
-        "	FragColor = Frag_Colour * texture( Texture, Frag_UV.st);\n"
+        "	Out_Color = Frag_Color;\n"
+        "   Out_Color.w *= texture( Texture, Frag_UV.st).x;\n"
         "}\n";
 
     shader_handle = glCreateProgram();
@@ -220,10 +219,10 @@ void InitGL()
     glLinkProgram(shader_handle);
 
     texture_location = glGetUniformLocation(shader_handle, "Texture");
-    ortho_location = glGetUniformLocation(shader_handle, "ortho");
+    proj_mtx_location = glGetUniformLocation(shader_handle, "ProjMtx");
     position_location = glGetAttribLocation(shader_handle, "Position");
     uv_location = glGetAttribLocation(shader_handle, "UV");
-    colour_location = glGetAttribLocation(shader_handle, "Colour");
+    colour_location = glGetAttribLocation(shader_handle, "Color");
 
     glGenBuffers(1, &vbo_handle);
     glBindBuffer(GL_ARRAY_BUFFER, vbo_handle);
@@ -270,18 +269,20 @@ void InitImGui()
     io.SetClipboardTextFn = ImImpl_SetClipboardTextFn;
     io.GetClipboardTextFn = ImImpl_GetClipboardTextFn;
 
-    // Load font texture
+    // Load font
+    io.Font = new ImFont();
+    io.Font->LoadDefault();
+    //io.Font->LoadFromFileTTF("myfont.ttf", font_size_px, ImFont::GetGlyphRangesDefault());
+    //io.Font->DisplayOffset.y += 0.0f;
+    IM_ASSERT(io.Font->IsLoaded());
+
+    // Copy font texture
     glGenTextures(1, &fontTex);
     glBindTexture(GL_TEXTURE_2D, fontTex);
-    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
-    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
-    const void* png_data;
-    unsigned int png_size;
-    ImGui::GetDefaultFontData(NULL, NULL, &png_data, &png_size);
-    int tex_x, tex_y, tex_comp;
-    void* tex_data = stbi_load_from_memory((const unsigned char*)png_data, (int)png_size, &tex_x, &tex_y, &tex_comp, 0);
-    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, tex_x, tex_y, 0, GL_RGBA, GL_UNSIGNED_BYTE, tex_data);
-    stbi_image_free(tex_data);
+    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+    IM_ASSERT(io.Font->IsLoaded());
+    glTexImage2D(GL_TEXTURE_2D, 0, GL_RED, io.Font->TexWidth, io.Font->TexHeight, 0, GL_RED, GL_UNSIGNED_BYTE, io.Font->TexPixels);
 }
 
 void UpdateImGui()
@@ -364,7 +365,7 @@ int main(int argc, char** argv)
         // 3. Show the ImGui test window. Most of the sample code is in ImGui::ShowTestWindow()
         if (show_test_window)
         {
-			ImGui::SetNextWindowPos(ImVec2(650, 20), ImGuiSetCondition_FirstUseEver);
+            ImGui::SetNextWindowPos(ImVec2(650, 20), ImGuiSetCondition_FirstUseEver);
             ImGui::ShowTestWindow(&show_test_window);
         }
         

examples/opengl3_example/opengl3_example.vcxproj

@@ -74,7 +74,6 @@
   <ItemGroup>
     <ClInclude Include="..\..\imconfig.h" />
     <ClInclude Include="..\..\imgui.h" />
-    <ClInclude Include="..\..\stb_textedit.h" />
   </ItemGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
   <ImportGroup Label="ExtensionTargets">

examples/opengl3_example/opengl3_example.vcxproj.filters

@@ -24,8 +24,5 @@
     <ClInclude Include="..\..\imgui.h">
       <Filter>imgui</Filter>
     </ClInclude>
-    <ClInclude Include="..\..\stb_textedit.h">
-      <Filter>imgui</Filter>
-    </ClInclude>
   </ItemGroup>
 </Project>

examples/opengl_example/main.cpp

@@ -8,9 +8,7 @@
 #endif
 
 #include "../../imgui.h"
-#define STB_IMAGE_STATIC
-#define STB_IMAGE_IMPLEMENTATION
-#include "../shared/stb_image.h"        // stb_image.h for PNG loading
+#include <stdio.h>
 
 // Glfw/Glew
 #define GLEW_STATIC
@@ -180,42 +178,20 @@ void InitImGui()
     io.SetClipboardTextFn = ImImpl_SetClipboardTextFn;
     io.GetClipboardTextFn = ImImpl_GetClipboardTextFn;
 
-    // Load font texture
-    glGenTextures(1, &fontTex);
-    glBindTexture(GL_TEXTURE_2D, fontTex);
-    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
-    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
-
-#if 1
-    // Default font (embedded in code)
-    const void* png_data;
-    unsigned int png_size;
-    ImGui::GetDefaultFontData(NULL, NULL, &png_data, &png_size);
-    int tex_x, tex_y, tex_comp;
-    void* tex_data = stbi_load_from_memory((const unsigned char*)png_data, (int)png_size, &tex_x, &tex_y, &tex_comp, 0);
-    IM_ASSERT(tex_data != NULL);
-#else
-    // Custom font from filesystem
+    // Load font
     io.Font = new ImFont();
-    io.Font->LoadFromFile("../../extra_fonts/mplus-2m-medium_18.fnt");
+    io.Font->LoadDefault();
+    //io.Font->LoadFromFileTTF("myfont.ttf", font_size_px, ImFont::GetGlyphRangesDefault());
+    //io.Font->DisplayOffset.y += 0.0f;
     IM_ASSERT(io.Font->IsLoaded());
 
-    int tex_x, tex_y, tex_comp;
-    void* tex_data = stbi_load("../../extra_fonts/mplus-2m-medium_18.png", &tex_x, &tex_y, &tex_comp, 0);
-    IM_ASSERT(tex_data != NULL);
-    
-    // Automatically find white pixel from the texture we just loaded
-    // (io.Font->TexUvForWhite needs to contains UV coordinates pointing to a white pixel in order to render solid objects)
-    for (int tex_data_off = 0; tex_data_off < tex_x*tex_y; tex_data_off++)
-        if (((unsigned int*)tex_data)[tex_data_off] == 0xffffffff)
-        {
-            io.Font->TexUvForWhite = ImVec2((float)(tex_data_off % tex_x)/(tex_x), (float)(tex_data_off / tex_x)/(tex_y));
-            break;
-        }
-#endif
-
-    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, tex_x, tex_y, 0, GL_RGBA, GL_UNSIGNED_BYTE, tex_data);
-    stbi_image_free(tex_data);
+    // Copy font texture
+    glGenTextures(1, &fontTex);
+    glBindTexture(GL_TEXTURE_2D, fontTex);
+    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+    IM_ASSERT(io.Font->IsLoaded());
+    glTexImage2D(GL_TEXTURE_2D, 0, GL_ALPHA, io.Font->TexWidth, io.Font->TexHeight, 0, GL_ALPHA, GL_UNSIGNED_BYTE, io.Font->TexPixels);
 }
 
 void UpdateImGui()

examples/opengl_example/opengl_example.vcxproj

@@ -74,8 +74,6 @@
   <ItemGroup>
     <ClInclude Include="..\..\imconfig.h" />
     <ClInclude Include="..\..\imgui.h" />
-    <ClInclude Include="..\..\stb_textedit.h" />
-    <ClInclude Include="..\shared\stb_image.h" />
   </ItemGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
   <ImportGroup Label="ExtensionTargets">

examples/opengl_example/opengl_example.vcxproj.filters

@@ -24,11 +24,5 @@
     <ClInclude Include="..\..\imgui.h">
       <Filter>imgui</Filter>
     </ClInclude>
-    <ClInclude Include="..\..\stb_textedit.h">
-      <Filter>imgui</Filter>
-    </ClInclude>
-    <ClInclude Include="..\shared\stb_image.h">
-      <Filter>sources</Filter>
-    </ClInclude>
   </ItemGroup>
 </Project>

examples/shared/README.txt

@@ -1,3 +0,0 @@
-stb_image.h is used to load the PNG texture data by
-	opengl_example
-	directx11_example

examples/shared/stb_image.h

@@ -1,4744 +0,0 @@
-/* stb_image - v1.46 - public domain JPEG/PNG reader - http://nothings.org/stb_image.c
-   when you control the images you're loading
-                                     no warranty implied; use at your own risk
-
-   Do this:
-      #define STB_IMAGE_IMPLEMENTATION
-   before you include this file in *one* C or C++ file to create the implementation.
-
-   #define STBI_ASSERT(x) to avoid using assert.h.
-
-   QUICK NOTES:
-      Primarily of interest to game developers and other people who can
-          avoid problematic images and only need the trivial interface
-
-      JPEG baseline (no JPEG progressive)
-      PNG 1/2/4/8-bit-per-channel (16 bpc not supported)
-
-      TGA (not sure what subset, if a subset)
-      BMP non-1bpp, non-RLE
-      PSD (composited view only, no extra channels)
-
-      GIF (*comp always reports as 4-channel)
-      HDR (radiance rgbE format)
-      PIC (Softimage PIC)
-
-      - decode from memory or through FILE (define STBI_NO_STDIO to remove code)
-      - decode from arbitrary I/O callbacks
-      - overridable dequantizing-IDCT, YCbCr-to-RGB conversion (define STBI_SIMD)
-
-   Latest revisions:
-      1.xx (2014-09-26) 1/2/4-bit PNG support (both grayscale and paletted)
-      1.46 (2014-08-26) fix broken tRNS chunk in non-paletted PNG
-      1.45 (2014-08-16) workaround MSVC-ARM internal compiler error by wrapping malloc
-      1.44 (2014-08-07) warnings
-      1.43 (2014-07-15) fix MSVC-only bug in 1.42
-      1.42 (2014-07-09) no _CRT_SECURE_NO_WARNINGS; error-path fixes; STBI_ASSERT
-      1.41 (2014-06-25) fix search&replace that messed up comments/error messages
-      1.40 (2014-06-22) gcc warning
-      1.39 (2014-06-15) TGA optimization bugfix, multiple BMP fixes
-      1.38 (2014-06-06) suppress MSVC run-time warnings, fix accidental rename of 'skip'
-      1.37 (2014-06-04) remove duplicate typedef
-      1.36 (2014-06-03) converted to header file, allow reading incorrect iphoned-images without iphone flag
-      1.35 (2014-05-27) warnings, bugfixes, TGA optimization, etc
-
-   See end of file for full revision history.
-
-   TODO:
-      stbi_info support for BMP,PSD,HDR,PIC
-
-
- ============================    Contributors    =========================
-              
- Image formats                                Bug fixes & warning fixes
-    Sean Barrett (jpeg, png, bmp)                Marc LeBlanc
-    Nicolas Schulz (hdr, psd)                    Christpher Lloyd
-    Jonathan Dummer (tga)                        Dave Moore
-    Jean-Marc Lienher (gif)                      Won Chun
-    Tom Seddon (pic)                             the Horde3D community
-    Thatcher Ulrich (psd)                        Janez Zemva
-                                                 Jonathan Blow
-                                                 Laurent Gomila
- Extensions, features                            Aruelien Pocheville
-    Jetro Lauha (stbi_info)                      Ryamond Barbiero
-    James "moose2000" Brown (iPhone PNG)         David Woo
-    Ben "Disch" Wenger (io callbacks)            Roy Eltham
-    Martin "SpartanJ" Golini                     Luke Graham
-    Omar Cornut (1/2/4-bit png)                  Thomas Ruf
-                                                 John Bartholomew
- Optimizations & bugfixes                        Ken Hamada
-    Fabian "ryg" Giesen                          Cort Stratton
-    Arseny Kapoulkine                            Blazej Dariusz Roszkowski
-                                                 Thibault Reuille
-                                                 Paul Du Bois
-                                                 Guillaume George
-                                                 Jerry Jansson
-  If your name should be here but                Hayaki Saito
-  isn't, let Sean know.                          Johan Duparc
-                                                 Ronny Chevalier
-                                                 Michal Cichon
-*/
-
-#ifndef STBI_INCLUDE_STB_IMAGE_H
-#define STBI_INCLUDE_STB_IMAGE_H
-
-// Limitations:
-//    - no jpeg progressive support
-//    - non-HDR formats support 8-bit samples only (jpeg, png)
-//    - no delayed line count (jpeg) -- IJG doesn't support either
-//    - no 1-bit BMP
-//    - GIF always returns *comp=4
-//
-// Basic usage (see HDR discussion below):
-//    int x,y,n;
-//    unsigned char *data = stbi_load(filename, &x, &y, &n, 0);
-//    // ... process data if not NULL ... 
-//    // ... x = width, y = height, n = # 8-bit components per pixel ...
-//    // ... replace '0' with '1'..'4' to force that many components per pixel
-//    // ... but 'n' will always be the number that it would have been if you said 0
-//    stbi_image_free(data)
-//
-// Standard parameters:
-//    int *x       -- outputs image width in pixels
-//    int *y       -- outputs image height in pixels
-//    int *comp    -- outputs # of image components in image file
-//    int req_comp -- if non-zero, # of image components requested in result
-//
-// The return value from an image loader is an 'unsigned char *' which points
-// to the pixel data. The pixel data consists of *y scanlines of *x pixels,
-// with each pixel consisting of N interleaved 8-bit components; the first
-// pixel pointed to is top-left-most in the image. There is no padding between
-// image scanlines or between pixels, regardless of format. The number of
-// components N is 'req_comp' if req_comp is non-zero, or *comp otherwise.
-// If req_comp is non-zero, *comp has the number of components that _would_
-// have been output otherwise. E.g. if you set req_comp to 4, you will always
-// get RGBA output, but you can check *comp to easily see if it's opaque.
-//
-// An output image with N components has the following components interleaved
-// in this order in each pixel:
-//
-//     N=#comp     components
-//       1           grey
-//       2           grey, alpha
-//       3           red, green, blue
-//       4           red, green, blue, alpha
-//
-// If image loading fails for any reason, the return value will be NULL,
-// and *x, *y, *comp will be unchanged. The function stbi_failure_reason()
-// can be queried for an extremely brief, end-user unfriendly explanation
-// of why the load failed. Define STBI_NO_FAILURE_STRINGS to avoid
-// compiling these strings at all, and STBI_FAILURE_USERMSG to get slightly
-// more user-friendly ones.
-//
-// Paletted PNG, BMP, GIF, and PIC images are automatically depalettized.
-//
-// ===========================================================================
-//
-// iPhone PNG support:
-//
-// By default we convert iphone-formatted PNGs back to RGB; nominally they
-// would silently load as BGR, except the existing code should have just
-// failed on such iPhone PNGs. But you can disable this conversion by
-// by calling stbi_convert_iphone_png_to_rgb(0), in which case
-// you will always just get the native iphone "format" through.
-//
-// Call stbi_set_unpremultiply_on_load(1) as well to force a divide per
-// pixel to remove any premultiplied alpha *only* if the image file explicitly
-// says there's premultiplied data (currently only happens in iPhone images,
-// and only if iPhone convert-to-rgb processing is on).
-//
-// ===========================================================================
-//
-// HDR image support   (disable by defining STBI_NO_HDR)
-//
-// stb_image now supports loading HDR images in general, and currently
-// the Radiance .HDR file format, although the support is provided
-// generically. You can still load any file through the existing interface;
-// if you attempt to load an HDR file, it will be automatically remapped to
-// LDR, assuming gamma 2.2 and an arbitrary scale factor defaulting to 1;
-// both of these constants can be reconfigured through this interface:
-//
-//     stbi_hdr_to_ldr_gamma(2.2f);
-//     stbi_hdr_to_ldr_scale(1.0f);
-//
-// (note, do not use _inverse_ constants; stbi_image will invert them
-// appropriately).
-//
-// Additionally, there is a new, parallel interface for loading files as
-// (linear) floats to preserve the full dynamic range:
-//
-//    float *data = stbi_loadf(filename, &x, &y, &n, 0);
-// 
-// If you load LDR images through this interface, those images will
-// be promoted to floating point values, run through the inverse of
-// constants corresponding to the above:
-//
-//     stbi_ldr_to_hdr_scale(1.0f);
-//     stbi_ldr_to_hdr_gamma(2.2f);
-//
-// Finally, given a filename (or an open file or memory block--see header
-// file for details) containing image data, you can query for the "most
-// appropriate" interface to use (that is, whether the image is HDR or
-// not), using:
-//
-//     stbi_is_hdr(char *filename);
-//
-// ===========================================================================
-//
-// I/O callbacks
-//
-// I/O callbacks allow you to read from arbitrary sources, like packaged
-// files or some other source. Data read from callbacks are processed
-// through a small internal buffer (currently 128 bytes) to try to reduce
-// overhead. 
-//
-// The three functions you must define are "read" (reads some bytes of data),
-// "skip" (skips some bytes of data), "eof" (reports if the stream is at the end).
-
-
-#ifndef STBI_NO_STDIO
-#include <stdio.h>
-#endif // STBI_NO_STDIO
-
-#define STBI_VERSION 1
-
-enum
-{
-   STBI_default = 0, // only used for req_comp
-
-   STBI_grey       = 1,
-   STBI_grey_alpha = 2,
-   STBI_rgb        = 3,
-   STBI_rgb_alpha  = 4
-};
-
-typedef unsigned char stbi_uc;
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-#ifdef STB_IMAGE_STATIC
-#define STBIDEF static
-#else
-#define STBIDEF extern
-#endif
-
-//////////////////////////////////////////////////////////////////////////////
-//
-// PRIMARY API - works on images of any type
-//
-
-//
-// load image by filename, open file, or memory buffer
-//
-
-STBIDEF stbi_uc *stbi_load_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp);
-
-#ifndef STBI_NO_STDIO
-STBIDEF stbi_uc *stbi_load            (char const *filename,     int *x, int *y, int *comp, int req_comp);
-STBIDEF stbi_uc *stbi_load_from_file  (FILE *f,                  int *x, int *y, int *comp, int req_comp);
-// for stbi_load_from_file, file pointer is left pointing immediately after image
-#endif
-
-typedef struct
-{
-   int      (*read)  (void *user,char *data,int size);   // fill 'data' with 'size' bytes.  return number of bytes actually read 
-   void     (*skip)  (void *user,int n);                 // skip the next 'n' bytes, or 'unget' the last -n bytes if negative
-   int      (*eof)   (void *user);                       // returns nonzero if we are at end of file/data
-} stbi_io_callbacks;
-
-STBIDEF stbi_uc *stbi_load_from_callbacks  (stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp);
-
-#ifndef STBI_NO_HDR
-   STBIDEF float *stbi_loadf_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp);
-
-   #ifndef STBI_NO_STDIO
-   STBIDEF float *stbi_loadf            (char const *filename,   int *x, int *y, int *comp, int req_comp);
-   STBIDEF float *stbi_loadf_from_file  (FILE *f,                int *x, int *y, int *comp, int req_comp);
-   #endif
-   
-   STBIDEF float *stbi_loadf_from_callbacks  (stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp);
-
-   STBIDEF void   stbi_hdr_to_ldr_gamma(float gamma);
-   STBIDEF void   stbi_hdr_to_ldr_scale(float scale);
-
-   STBIDEF void   stbi_ldr_to_hdr_gamma(float gamma);
-   STBIDEF void   stbi_ldr_to_hdr_scale(float scale);
-#endif // STBI_NO_HDR
-
-// stbi_is_hdr is always defined
-STBIDEF int    stbi_is_hdr_from_callbacks(stbi_io_callbacks const *clbk, void *user);
-STBIDEF int    stbi_is_hdr_from_memory(stbi_uc const *buffer, int len);
-#ifndef STBI_NO_STDIO
-STBIDEF int      stbi_is_hdr          (char const *filename);
-STBIDEF int      stbi_is_hdr_from_file(FILE *f);
-#endif // STBI_NO_STDIO
-
-
-// get a VERY brief reason for failure
-// NOT THREADSAFE
-STBIDEF const char *stbi_failure_reason  (void); 
-
-// free the loaded image -- this is just free()
-STBIDEF void     stbi_image_free      (void *retval_from_stbi_load);
-
-// get image dimensions & components without fully decoding
-STBIDEF int      stbi_info_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp);
-STBIDEF int      stbi_info_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp);
-
-#ifndef STBI_NO_STDIO
-STBIDEF int      stbi_info            (char const *filename,     int *x, int *y, int *comp);
-STBIDEF int      stbi_info_from_file  (FILE *f,                  int *x, int *y, int *comp);
-
-#endif
-
-
-
-// for image formats that explicitly notate that they have premultiplied alpha,
-// we just return the colors as stored in the file. set this flag to force
-// unpremultiplication. results are undefined if the unpremultiply overflow.
-STBIDEF void stbi_set_unpremultiply_on_load(int flag_true_if_should_unpremultiply);
-
-// indicate whether we should process iphone images back to canonical format,
-// or just pass them through "as-is"
-STBIDEF void stbi_convert_iphone_png_to_rgb(int flag_true_if_should_convert);
-
-
-// ZLIB client - used by PNG, available for other purposes
-
-STBIDEF char *stbi_zlib_decode_malloc_guesssize(const char *buffer, int len, int initial_size, int *outlen);
-STBIDEF char *stbi_zlib_decode_malloc_guesssize_headerflag(const char *buffer, int len, int initial_size, int *outlen, int parse_header);
-STBIDEF char *stbi_zlib_decode_malloc(const char *buffer, int len, int *outlen);
-STBIDEF int   stbi_zlib_decode_buffer(char *obuffer, int olen, const char *ibuffer, int ilen);
-
-STBIDEF char *stbi_zlib_decode_noheader_malloc(const char *buffer, int len, int *outlen);
-STBIDEF int   stbi_zlib_decode_noheader_buffer(char *obuffer, int olen, const char *ibuffer, int ilen);
-
-
-// define faster low-level operations (typically SIMD support)
-#ifdef STBI_SIMD
-typedef void (*stbi_idct_8x8)(stbi_uc *out, int out_stride, short data[64], unsigned short *dequantize);
-// compute an integer IDCT on "input"
-//     input[x] = data[x] * dequantize[x]
-//     write results to 'out': 64 samples, each run of 8 spaced by 'out_stride'
-//                             CLAMP results to 0..255
-typedef void (*stbi_YCbCr_to_RGB_run)(stbi_uc *output, stbi_uc const  *y, stbi_uc const *cb, stbi_uc const *cr, int count, int step);
-// compute a conversion from YCbCr to RGB
-//     'count' pixels
-//     write pixels to 'output'; each pixel is 'step' bytes (either 3 or 4; if 4, write '255' as 4th), order R,G,B
-//     y: Y input channel
-//     cb: Cb input channel; scale/biased to be 0..255
-//     cr: Cr input channel; scale/biased to be 0..255
-
-STBIDEF void stbi_install_idct(stbi_idct_8x8 func);
-STBIDEF void stbi_install_YCbCr_to_RGB(stbi_YCbCr_to_RGB_run func);
-#endif // STBI_SIMD
-
-
-#ifdef __cplusplus
-}
-#endif
-
-//
-//
-////   end header file   /////////////////////////////////////////////////////
-#endif // STBI_INCLUDE_STB_IMAGE_H
-
-#ifdef STB_IMAGE_IMPLEMENTATION
-
-#ifndef STBI_NO_HDR
-#include <math.h>  // ldexp
-#include <string.h> // strcmp, strtok
-#endif
-
-#ifndef STBI_NO_STDIO
-#include <stdio.h>
-#endif
-#include <stdlib.h>
-#include <string.h>
-#ifndef STBI_ASSERT
-#include <assert.h>
-#define STBI_ASSERT(x) assert(x)
-#endif
-#include <stdarg.h>
-#include <stddef.h> // ptrdiff_t on osx
-
-#ifndef _MSC_VER
-   #ifdef __cplusplus
-   #define stbi_inline inline
-   #else
-   #define stbi_inline
-   #endif
-#else
-   #define stbi_inline __forceinline
-#endif
-
-
-#ifdef _MSC_VER
-typedef unsigned short stbi__uint16;
-typedef   signed short stbi__int16;
-typedef unsigned int   stbi__uint32;
-typedef   signed int   stbi__int32;
-#else
-#include <stdint.h>
-typedef uint16_t stbi__uint16;
-typedef int16_t  stbi__int16;
-typedef uint32_t stbi__uint32;
-typedef int32_t  stbi__int32;
-#endif
-
-// should produce compiler error if size is wrong
-typedef unsigned char validate_uint32[sizeof(stbi__uint32)==4 ? 1 : -1];
-
-#ifdef _MSC_VER
-#define STBI_NOTUSED(v)  (void)(v)
-#else
-#define STBI_NOTUSED(v)  (void)sizeof(v)
-#endif
-
-#ifdef _MSC_VER
-#define STBI_HAS_LROTL
-#endif
-
-#ifdef STBI_HAS_LROTL
-   #define stbi_lrot(x,y)  _lrotl(x,y)
-#else
-   #define stbi_lrot(x,y)  (((x) << (y)) | ((x) >> (32 - (y))))
-#endif
-
-///////////////////////////////////////////////
-//
-//  stbi__context struct and start_xxx functions
-
-// stbi__context structure is our basic context used by all images, so it
-// contains all the IO context, plus some basic image information
-typedef struct
-{
-   stbi__uint32 img_x, img_y;
-   int img_n, img_out_n;
-   
-   stbi_io_callbacks io;
-   void *io_user_data;
-
-   int read_from_callbacks;
-   int buflen;
-   stbi_uc buffer_start[128];
-
-   stbi_uc *img_buffer, *img_buffer_end;
-   stbi_uc *img_buffer_original;
-} stbi__context;
-
-
-static void stbi__refill_buffer(stbi__context *s);
-
-// initialize a memory-decode context
-static void stbi__start_mem(stbi__context *s, stbi_uc const *buffer, int len)
-{
-   s->io.read = NULL;
-   s->read_from_callbacks = 0;
-   s->img_buffer = s->img_buffer_original = (stbi_uc *) buffer;
-   s->img_buffer_end = (stbi_uc *) buffer+len;
-}
-
-// initialize a callback-based context
-static void stbi__start_callbacks(stbi__context *s, stbi_io_callbacks *c, void *user)
-{
-   s->io = *c;
-   s->io_user_data = user;
-   s->buflen = sizeof(s->buffer_start);
-   s->read_from_callbacks = 1;
-   s->img_buffer_original = s->buffer_start;
-   stbi__refill_buffer(s);
-}
-
-#ifndef STBI_NO_STDIO
-
-static int stbi__stdio_read(void *user, char *data, int size)
-{
-   return (int) fread(data,1,size,(FILE*) user);
-}
-
-static void stbi__stdio_skip(void *user, int n)
-{
-   fseek((FILE*) user, n, SEEK_CUR);
-}
-
-static int stbi__stdio_eof(void *user)
-{
-   return feof((FILE*) user);
-}
-
-static stbi_io_callbacks stbi__stdio_callbacks =
-{
-   stbi__stdio_read,
-   stbi__stdio_skip,
-   stbi__stdio_eof,
-};
-
-static void stbi__start_file(stbi__context *s, FILE *f)
-{
-   stbi__start_callbacks(s, &stbi__stdio_callbacks, (void *) f);
-}
-
-//static void stop_file(stbi__context *s) { }
-
-#endif // !STBI_NO_STDIO
-
-static void stbi__rewind(stbi__context *s)
-{
-   // conceptually rewind SHOULD rewind to the beginning of the stream,
-   // but we just rewind to the beginning of the initial buffer, because
-   // we only use it after doing 'test', which only ever looks at at most 92 bytes
-   s->img_buffer = s->img_buffer_original;
-}
-
-static int      stbi__jpeg_test(stbi__context *s);
-static stbi_uc *stbi__jpeg_load(stbi__context *s, int *x, int *y, int *comp, int req_comp);
-static int      stbi__jpeg_info(stbi__context *s, int *x, int *y, int *comp);
-static int      stbi__png_test(stbi__context *s);
-static stbi_uc *stbi__png_load(stbi__context *s, int *x, int *y, int *comp, int req_comp);
-static int      stbi__png_info(stbi__context *s, int *x, int *y, int *comp);
-static int      stbi__bmp_test(stbi__context *s);
-static stbi_uc *stbi__bmp_load(stbi__context *s, int *x, int *y, int *comp, int req_comp);
-static int      stbi__tga_test(stbi__context *s);
-static stbi_uc *stbi__tga_load(stbi__context *s, int *x, int *y, int *comp, int req_comp);
-static int      stbi__tga_info(stbi__context *s, int *x, int *y, int *comp);
-static int      stbi__psd_test(stbi__context *s);
-static stbi_uc *stbi__psd_load(stbi__context *s, int *x, int *y, int *comp, int req_comp);
-#ifndef STBI_NO_HDR
-static int      stbi__hdr_test(stbi__context *s);
-static float   *stbi__hdr_load(stbi__context *s, int *x, int *y, int *comp, int req_comp);
-#endif
-static int      stbi__pic_test(stbi__context *s);
-static stbi_uc *stbi__pic_load(stbi__context *s, int *x, int *y, int *comp, int req_comp);
-static int      stbi__gif_test(stbi__context *s);
-static stbi_uc *stbi__gif_load(stbi__context *s, int *x, int *y, int *comp, int req_comp);
-static int      stbi__gif_info(stbi__context *s, int *x, int *y, int *comp);
-
-
-// this is not threadsafe
-static const char *stbi__g_failure_reason;
-
-STBIDEF const char *stbi_failure_reason(void)
-{
-   return stbi__g_failure_reason;
-}
-
-static int stbi__err(const char *str)
-{
-   stbi__g_failure_reason = str;
-   return 0;
-}
-
-static void *stbi__malloc(size_t size)
-{
-    return malloc(size);
-}
-
-// stbi__err - error
-// stbi__errpf - error returning pointer to float
-// stbi__errpuc - error returning pointer to unsigned char
-
-#ifdef STBI_NO_FAILURE_STRINGS
-   #define stbi__err(x,y)  0
-#elif defined(STBI_FAILURE_USERMSG)
-   #define stbi__err(x,y)  stbi__err(y)
-#else
-   #define stbi__err(x,y)  stbi__err(x)
-#endif
-
-#define stbi__errpf(x,y)   ((float *) (stbi__err(x,y)?NULL:NULL))
-#define stbi__errpuc(x,y)  ((unsigned char *) (stbi__err(x,y)?NULL:NULL))
-
-STBIDEF void stbi_image_free(void *retval_from_stbi_load)
-{
-   free(retval_from_stbi_load);
-}
-
-#ifndef STBI_NO_HDR
-static float   *stbi__ldr_to_hdr(stbi_uc *data, int x, int y, int comp);
-static stbi_uc *stbi__hdr_to_ldr(float   *data, int x, int y, int comp);
-#endif
-
-static unsigned char *stbi_load_main(stbi__context *s, int *x, int *y, int *comp, int req_comp)
-{
-   if (stbi__jpeg_test(s)) return stbi__jpeg_load(s,x,y,comp,req_comp);
-   if (stbi__png_test(s))  return stbi__png_load(s,x,y,comp,req_comp);
-   if (stbi__bmp_test(s))  return stbi__bmp_load(s,x,y,comp,req_comp);
-   if (stbi__gif_test(s))  return stbi__gif_load(s,x,y,comp,req_comp);
-   if (stbi__psd_test(s))  return stbi__psd_load(s,x,y,comp,req_comp);
-   if (stbi__pic_test(s))  return stbi__pic_load(s,x,y,comp,req_comp);
-
-   #ifndef STBI_NO_HDR
-   if (stbi__hdr_test(s)) {
-      float *hdr = stbi__hdr_load(s, x,y,comp,req_comp);
-      return stbi__hdr_to_ldr(hdr, *x, *y, req_comp ? req_comp : *comp);
-   }
-   #endif
-
-   // test tga last because it's a crappy test!
-   if (stbi__tga_test(s))
-      return stbi__tga_load(s,x,y,comp,req_comp);
-   return stbi__errpuc("unknown image type", "Image not of any known type, or corrupt");
-}
-
-#ifndef STBI_NO_STDIO
-
-FILE *stbi__fopen(char const *filename, char const *mode)
-{
-   FILE *f;
-#if defined(_MSC_VER) && _MSC_VER >= 1400
-   if (0 != fopen_s(&f, filename, mode))
-      f=0;
-#else
-   f = fopen(filename, mode);
-#endif
-   return f;
-}
-
-
-STBIDEF unsigned char *stbi_load(char const *filename, int *x, int *y, int *comp, int req_comp)
-{
-   FILE *f = stbi__fopen(filename, "rb");
-   unsigned char *result;
-   if (!f) return stbi__errpuc("can't fopen", "Unable to open file");
-   result = stbi_load_from_file(f,x,y,comp,req_comp);
-   fclose(f);
-   return result;
-}
-
-STBIDEF unsigned char *stbi_load_from_file(FILE *f, int *x, int *y, int *comp, int req_comp)
-{
-   unsigned char *result;
-   stbi__context s;
-   stbi__start_file(&s,f);
-   result = stbi_load_main(&s,x,y,comp,req_comp);
-   if (result) {
-      // need to 'unget' all the characters in the IO buffer
-      fseek(f, - (int) (s.img_buffer_end - s.img_buffer), SEEK_CUR);
-   }
-   return result;
-}
-#endif //!STBI_NO_STDIO
-
-STBIDEF unsigned char *stbi_load_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp)
-{
-   stbi__context s;
-   stbi__start_mem(&s,buffer,len);
-   return stbi_load_main(&s,x,y,comp,req_comp);
-}
-
-unsigned char *stbi_load_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp)
-{
-   stbi__context s;
-   stbi__start_callbacks(&s, (stbi_io_callbacks *) clbk, user);
-   return stbi_load_main(&s,x,y,comp,req_comp);
-}
-
-#ifndef STBI_NO_HDR
-
-float *stbi_loadf_main(stbi__context *s, int *x, int *y, int *comp, int req_comp)
-{
-   unsigned char *data;
-   #ifndef STBI_NO_HDR
-   if (stbi__hdr_test(s))
-      return stbi__hdr_load(s,x,y,comp,req_comp);
-   #endif
-   data = stbi_load_main(s, x, y, comp, req_comp);
-   if (data)
-      return stbi__ldr_to_hdr(data, *x, *y, req_comp ? req_comp : *comp);
-   return stbi__errpf("unknown image type", "Image not of any known type, or corrupt");
-}
-
-float *stbi_loadf_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp)
-{
-   stbi__context s;
-   stbi__start_mem(&s,buffer,len);
-   return stbi_loadf_main(&s,x,y,comp,req_comp);
-}
-
-float *stbi_loadf_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp)
-{
-   stbi__context s;
-   stbi__start_callbacks(&s, (stbi_io_callbacks *) clbk, user);
-   return stbi_loadf_main(&s,x,y,comp,req_comp);
-}
-
-#ifndef STBI_NO_STDIO
-float *stbi_loadf(char const *filename, int *x, int *y, int *comp, int req_comp)
-{
-   float *result;
-   FILE *f = stbi__fopen(filename, "rb");
-   if (!f) return stbi__errpf("can't fopen", "Unable to open file");
-   result = stbi_loadf_from_file(f,x,y,comp,req_comp);
-   fclose(f);
-   return result;
-}
-
-float *stbi_loadf_from_file(FILE *f, int *x, int *y, int *comp, int req_comp)
-{
-   stbi__context s;
-   stbi__start_file(&s,f);
-   return stbi_loadf_main(&s,x,y,comp,req_comp);
-}
-#endif // !STBI_NO_STDIO
-
-#endif // !STBI_NO_HDR
-
-// these is-hdr-or-not is defined independent of whether STBI_NO_HDR is
-// defined, for API simplicity; if STBI_NO_HDR is defined, it always
-// reports false!
-
-int stbi_is_hdr_from_memory(stbi_uc const *buffer, int len)
-{
-   #ifndef STBI_NO_HDR
-   stbi__context s;
-   stbi__start_mem(&s,buffer,len);
-   return stbi__hdr_test(&s);
-   #else
-   STBI_NOTUSED(buffer);
-   STBI_NOTUSED(len);
-   return 0;
-   #endif
-}
-
-#ifndef STBI_NO_STDIO
-STBIDEF int      stbi_is_hdr          (char const *filename)
-{
-   FILE *f = stbi__fopen(filename, "rb");
-   int result=0;
-   if (f) {
-      result = stbi_is_hdr_from_file(f);
-      fclose(f);
-   }
-   return result;
-}
-
-STBIDEF int      stbi_is_hdr_from_file(FILE *f)
-{
-   #ifndef STBI_NO_HDR
-   stbi__context s;
-   stbi__start_file(&s,f);
-   return stbi__hdr_test(&s);
-   #else
-   return 0;
-   #endif
-}
-#endif // !STBI_NO_STDIO
-
-STBIDEF int      stbi_is_hdr_from_callbacks(stbi_io_callbacks const *clbk, void *user)
-{
-   #ifndef STBI_NO_HDR
-   stbi__context s;
-   stbi__start_callbacks(&s, (stbi_io_callbacks *) clbk, user);
-   return stbi__hdr_test(&s);
-   #else
-   return 0;
-   #endif
-}
-
-#ifndef STBI_NO_HDR
-static float stbi__h2l_gamma_i=1.0f/2.2f, stbi__h2l_scale_i=1.0f;
-static float stbi__l2h_gamma=2.2f, stbi__l2h_scale=1.0f;
-
-void   stbi_hdr_to_ldr_gamma(float gamma) { stbi__h2l_gamma_i = 1/gamma; }
-void   stbi_hdr_to_ldr_scale(float scale) { stbi__h2l_scale_i = 1/scale; }
-
-void   stbi_ldr_to_hdr_gamma(float gamma) { stbi__l2h_gamma = gamma; }
-void   stbi_ldr_to_hdr_scale(float scale) { stbi__l2h_scale = scale; }
-#endif
-
-
-//////////////////////////////////////////////////////////////////////////////
-//
-// Common code used by all image loaders
-//
-
-enum
-{
-   SCAN_load=0,
-   SCAN_type,
-   SCAN_header
-};
-
-static void stbi__refill_buffer(stbi__context *s)
-{
-   int n = (s->io.read)(s->io_user_data,(char*)s->buffer_start,s->buflen);
-   if (n == 0) {
-      // at end of file, treat same as if from memory, but need to handle case
-      // where s->img_buffer isn't pointing to safe memory, e.g. 0-byte file
-      s->read_from_callbacks = 0;
-      s->img_buffer = s->buffer_start;
-      s->img_buffer_end = s->buffer_start+1;
-      *s->img_buffer = 0;
-   } else {
-      s->img_buffer = s->buffer_start;
-      s->img_buffer_end = s->buffer_start + n;
-   }
-}
-
-stbi_inline static stbi_uc stbi__get8(stbi__context *s)
-{
-   if (s->img_buffer < s->img_buffer_end)
-      return *s->img_buffer++;
-   if (s->read_from_callbacks) {
-      stbi__refill_buffer(s);
-      return *s->img_buffer++;
-   }
-   return 0;
-}
-
-stbi_inline static int stbi__at_eof(stbi__context *s)
-{
-   if (s->io.read) {
-      if (!(s->io.eof)(s->io_user_data)) return 0;
-      // if feof() is true, check if buffer = end
-      // special case: we've only got the special 0 character at the end
-      if (s->read_from_callbacks == 0) return 1;
-   }
-
-   return s->img_buffer >= s->img_buffer_end;   
-}
-
-static void stbi__skip(stbi__context *s, int n)
-{
-   if (s->io.read) {
-      int blen = (int) (s->img_buffer_end - s->img_buffer);
-      if (blen < n) {
-         s->img_buffer = s->img_buffer_end;
-         (s->io.skip)(s->io_user_data, n - blen);
-         return;
-      }
-   }
-   s->img_buffer += n;
-}
-
-static int stbi__getn(stbi__context *s, stbi_uc *buffer, int n)
-{
-   if (s->io.read) {
-      int blen = (int) (s->img_buffer_end - s->img_buffer);
-      if (blen < n) {
-         int res, count;
-
-         memcpy(buffer, s->img_buffer, blen);
-         
-         count = (s->io.read)(s->io_user_data, (char*) buffer + blen, n - blen);
-         res = (count == (n-blen));
-         s->img_buffer = s->img_buffer_end;
-         return res;
-      }
-   }
-
-   if (s->img_buffer+n <= s->img_buffer_end) {
-      memcpy(buffer, s->img_buffer, n);
-      s->img_buffer += n;
-      return 1;
-   } else
-      return 0;
-}
-
-static int stbi__get16be(stbi__context *s)
-{
-   int z = stbi__get8(s);
-   return (z << 8) + stbi__get8(s);
-}
-
-static stbi__uint32 stbi__get32be(stbi__context *s)
-{
-   stbi__uint32 z = stbi__get16be(s);
-   return (z << 16) + stbi__get16be(s);
-}
-
-static int stbi__get16le(stbi__context *s)
-{
-   int z = stbi__get8(s);
-   return z + (stbi__get8(s) << 8);
-}
-
-static stbi__uint32 stbi__get32le(stbi__context *s)
-{
-   stbi__uint32 z = stbi__get16le(s);
-   return z + (stbi__get16le(s) << 16);
-}
-
-//////////////////////////////////////////////////////////////////////////////
-//
-//  generic converter from built-in img_n to req_comp
-//    individual types do this automatically as much as possible (e.g. jpeg
-//    does all cases internally since it needs to colorspace convert anyway,
-//    and it never has alpha, so very few cases ). png can automatically
-//    interleave an alpha=255 channel, but falls back to this for other cases
-//
-//  assume data buffer is malloced, so malloc a new one and free that one
-//  only failure mode is malloc failing
-
-static stbi_uc stbi__compute_y(int r, int g, int b)
-{
-   return (stbi_uc) (((r*77) + (g*150) +  (29*b)) >> 8);
-}
-
-static unsigned char *stbi__convert_format(unsigned char *data, int img_n, int req_comp, unsigned int x, unsigned int y)
-{
-   int i,j;
-   unsigned char *good;
-
-   if (req_comp == img_n) return data;
-   STBI_ASSERT(req_comp >= 1 && req_comp <= 4);
-
-   good = (unsigned char *) stbi__malloc(req_comp * x * y);
-   if (good == NULL) {
-      free(data);
-      return stbi__errpuc("outofmem", "Out of memory");
-   }
-
-   for (j=0; j < (int) y; ++j) {
-      unsigned char *src  = data + j * x * img_n   ;
-      unsigned char *dest = good + j * x * req_comp;
-
-      #define COMBO(a,b)  ((a)*8+(b))
-      #define CASE(a,b)   case COMBO(a,b): for(i=x-1; i >= 0; --i, src += a, dest += b)
-      // convert source image with img_n components to one with req_comp components;
-      // avoid switch per pixel, so use switch per scanline and massive macros
-      switch (COMBO(img_n, req_comp)) {
-         CASE(1,2) dest[0]=src[0], dest[1]=255; break;
-         CASE(1,3) dest[0]=dest[1]=dest[2]=src[0]; break;
-         CASE(1,4) dest[0]=dest[1]=dest[2]=src[0], dest[3]=255; break;
-         CASE(2,1) dest[0]=src[0]; break;
-         CASE(2,3) dest[0]=dest[1]=dest[2]=src[0]; break;
-         CASE(2,4) dest[0]=dest[1]=dest[2]=src[0], dest[3]=src[1]; break;
-         CASE(3,4) dest[0]=src[0],dest[1]=src[1],dest[2]=src[2],dest[3]=255; break;
-         CASE(3,1) dest[0]=stbi__compute_y(src[0],src[1],src[2]); break;
-         CASE(3,2) dest[0]=stbi__compute_y(src[0],src[1],src[2]), dest[1] = 255; break;
-         CASE(4,1) dest[0]=stbi__compute_y(src[0],src[1],src[2]); break;
-         CASE(4,2) dest[0]=stbi__compute_y(src[0],src[1],src[2]), dest[1] = src[3]; break;
-         CASE(4,3) dest[0]=src[0],dest[1]=src[1],dest[2]=src[2]; break;
-         default: STBI_ASSERT(0);
-      }
-      #undef CASE
-   }
-
-   free(data);
-   return good;
-}
-
-#ifndef STBI_NO_HDR
-static float   *stbi__ldr_to_hdr(stbi_uc *data, int x, int y, int comp)
-{
-   int i,k,n;
-   float *output = (float *) stbi__malloc(x * y * comp * sizeof(float));
-   if (output == NULL) { free(data); return stbi__errpf("outofmem", "Out of memory"); }
-   // compute number of non-alpha components
-   if (comp & 1) n = comp; else n = comp-1;
-   for (i=0; i < x*y; ++i) {
-      for (k=0; k < n; ++k) {
-         output[i*comp + k] = (float) (pow(data[i*comp+k]/255.0f, stbi__l2h_gamma) * stbi__l2h_scale);
-      }
-      if (k < comp) output[i*comp + k] = data[i*comp+k]/255.0f;
-   }
-   free(data);
-   return output;
-}
-
-#define stbi__float2int(x)   ((int) (x))
-static stbi_uc *stbi__hdr_to_ldr(float   *data, int x, int y, int comp)
-{
-   int i,k,n;
-   stbi_uc *output = (stbi_uc *) stbi__malloc(x * y * comp);
-   if (output == NULL) { free(data); return stbi__errpuc("outofmem", "Out of memory"); }
-   // compute number of non-alpha components
-   if (comp & 1) n = comp; else n = comp-1;
-   for (i=0; i < x*y; ++i) {
-      for (k=0; k < n; ++k) {
-         float z = (float) pow(data[i*comp+k]*stbi__h2l_scale_i, stbi__h2l_gamma_i) * 255 + 0.5f;
-         if (z < 0) z = 0;
-         if (z > 255) z = 255;
-         output[i*comp + k] = (stbi_uc) stbi__float2int(z);
-      }
-      if (k < comp) {
-         float z = data[i*comp+k] * 255 + 0.5f;
-         if (z < 0) z = 0;
-         if (z > 255) z = 255;
-         output[i*comp + k] = (stbi_uc) stbi__float2int(z);
-      }
-   }
-   free(data);
-   return output;
-}
-#endif
-
-//////////////////////////////////////////////////////////////////////////////
-//
-//  "baseline" JPEG/JFIF decoder (not actually fully baseline implementation)
-//
-//    simple implementation
-//      - channel subsampling of at most 2 in each dimension
-//      - doesn't support delayed output of y-dimension
-//      - simple interface (only one output format: 8-bit interleaved RGB)
-//      - doesn't try to recover corrupt jpegs
-//      - doesn't allow partial loading, loading multiple at once
-//      - still fast on x86 (copying globals into locals doesn't help x86)
-//      - allocates lots of intermediate memory (full size of all components)
-//        - non-interleaved case requires this anyway
-//        - allows good upsampling (see next)
-//    high-quality
-//      - upsampled channels are bilinearly interpolated, even across blocks
-//      - quality integer IDCT derived from IJG's 'slow'
-//    performance
-//      - fast huffman; reasonable integer IDCT
-//      - uses a lot of intermediate memory, could cache poorly
-//      - load http://nothings.org/remote/anemones.jpg 3 times on 2.8Ghz P4
-//          stb_jpeg:   1.34 seconds (MSVC6, default release build)
-//          stb_jpeg:   1.06 seconds (MSVC6, processor = Pentium Pro)
-//          IJL11.dll:  1.08 seconds (compiled by intel)
-//          IJG 1998:   0.98 seconds (MSVC6, makefile provided by IJG)
-//          IJG 1998:   0.95 seconds (MSVC6, makefile + proc=PPro)
-
-// huffman decoding acceleration
-#define FAST_BITS   9  // larger handles more cases; smaller stomps less cache
-
-typedef struct
-{
-   stbi_uc  fast[1 << FAST_BITS];
-   // weirdly, repacking this into AoS is a 10% speed loss, instead of a win
-   stbi__uint16 code[256];
-   stbi_uc  values[256];
-   stbi_uc  size[257];
-   unsigned int maxcode[18];
-   int    delta[17];   // old 'firstsymbol' - old 'firstcode'
-} stbi__huffman;
-
-typedef struct
-{
-   #ifdef STBI_SIMD
-   unsigned short dequant2[4][64];
-   #endif
-   stbi__context *s;
-   stbi__huffman huff_dc[4];
-   stbi__huffman huff_ac[4];
-   stbi_uc dequant[4][64];
-
-// sizes for components, interleaved MCUs
-   int img_h_max, img_v_max;
-   int img_mcu_x, img_mcu_y;
-   int img_mcu_w, img_mcu_h;
-
-// definition of jpeg image component
-   struct
-   {
-      int id;
-      int h,v;
-      int tq;
-      int hd,ha;
-      int dc_pred;
-
-      int x,y,w2,h2;
-      stbi_uc *data;
-      void *raw_data;
-      stbi_uc *linebuf;
-   } img_comp[4];
-
-   stbi__uint32         code_buffer; // jpeg entropy-coded buffer
-   int            code_bits;   // number of valid bits
-   unsigned char  marker;      // marker seen while filling entropy buffer
-   int            nomore;      // flag if we saw a marker so must stop
-
-   int scan_n, order[4];
-   int restart_interval, todo;
-} stbi__jpeg;
-
-static int stbi__build_huffman(stbi__huffman *h, int *count)
-{
-   int i,j,k=0,code;
-   // build size list for each symbol (from JPEG spec)
-   for (i=0; i < 16; ++i)
-      for (j=0; j < count[i]; ++j)
-         h->size[k++] = (stbi_uc) (i+1);
-   h->size[k] = 0;
-
-   // compute actual symbols (from jpeg spec)
-   code = 0;
-   k = 0;
-   for(j=1; j <= 16; ++j) {
-      // compute delta to add to code to compute symbol id
-      h->delta[j] = k - code;
-      if (h->size[k] == j) {
-         while (h->size[k] == j)
-            h->code[k++] = (stbi__uint16) (code++);
-         if (code-1 >= (1 << j)) return stbi__err("bad code lengths","Corrupt JPEG");
-      }
-      // compute largest code + 1 for this size, preshifted as needed later
-      h->maxcode[j] = code << (16-j);
-      code <<= 1;
-   }
-   h->maxcode[j] = 0xffffffff;
-
-   // build non-spec acceleration table; 255 is flag for not-accelerated
-   memset(h->fast, 255, 1 << FAST_BITS);
-   for (i=0; i < k; ++i) {
-      int s = h->size[i];
-      if (s <= FAST_BITS) {
-         int c = h->code[i] << (FAST_BITS-s);
-         int m = 1 << (FAST_BITS-s);
-         for (j=0; j < m; ++j) {
-            h->fast[c+j] = (stbi_uc) i;
-         }
-      }
-   }
-   return 1;
-}
-
-static void stbi__grow_buffer_unsafe(stbi__jpeg *j)
-{
-   do {
-      int b = j->nomore ? 0 : stbi__get8(j->s);
-      if (b == 0xff) {
-         int c = stbi__get8(j->s);
-         if (c != 0) {
-            j->marker = (unsigned char) c;
-            j->nomore = 1;
-            return;
-         }
-      }
-      j->code_buffer |= b << (24 - j->code_bits);
-      j->code_bits += 8;
-   } while (j->code_bits <= 24);
-}
-
-// (1 << n) - 1
-static stbi__uint32 stbi__bmask[17]={0,1,3,7,15,31,63,127,255,511,1023,2047,4095,8191,16383,32767,65535};
-
-// decode a jpeg huffman value from the bitstream
-stbi_inline static int stbi__jpeg_huff_decode(stbi__jpeg *j, stbi__huffman *h)
-{
-   unsigned int temp;
-   int c,k;
-
-   if (j->code_bits < 16) stbi__grow_buffer_unsafe(j);
-
-   // look at the top FAST_BITS and determine what symbol ID it is,
-   // if the code is <= FAST_BITS
-   c = (j->code_buffer >> (32 - FAST_BITS)) & ((1 << FAST_BITS)-1);
-   k = h->fast[c];
-   if (k < 255) {
-      int s = h->size[k];
-      if (s > j->code_bits)
-         return -1;
-      j->code_buffer <<= s;
-      j->code_bits -= s;
-      return h->values[k];
-   }
-
-   // naive test is to shift the code_buffer down so k bits are
-   // valid, then test against maxcode. To speed this up, we've
-   // preshifted maxcode left so that it has (16-k) 0s at the
-   // end; in other words, regardless of the number of bits, it
-   // wants to be compared against something shifted to have 16;
-   // that way we don't need to shift inside the loop.
-   temp = j->code_buffer >> 16;
-   for (k=FAST_BITS+1 ; ; ++k)
-      if (temp < h->maxcode[k])
-         break;
-   if (k == 17) {
-      // error! code not found
-      j->code_bits -= 16;
-      return -1;
-   }
-
-   if (k > j->code_bits)
-      return -1;
-
-   // convert the huffman code to the symbol id
-   c = ((j->code_buffer >> (32 - k)) & stbi__bmask[k]) + h->delta[k];
-   STBI_ASSERT((((j->code_buffer) >> (32 - h->size[c])) & stbi__bmask[h->size[c]]) == h->code[c]);
-
-   // convert the id to a symbol
-   j->code_bits -= k;
-   j->code_buffer <<= k;
-   return h->values[c];
-}
-
-// combined JPEG 'receive' and JPEG 'extend', since baseline
-// always extends everything it receives.
-stbi_inline static int stbi__extend_receive(stbi__jpeg *j, int n)
-{
-   unsigned int m = 1 << (n-1);
-   unsigned int k;
-   if (j->code_bits < n) stbi__grow_buffer_unsafe(j);
-
-   #if 1
-   k = stbi_lrot(j->code_buffer, n);
-   j->code_buffer = k & ~stbi__bmask[n];
-   k &= stbi__bmask[n];
-   j->code_bits -= n;
-   #else
-   k = (j->code_buffer >> (32 - n)) & stbi__bmask[n];
-   j->code_bits -= n;
-   j->code_buffer <<= n;
-   #endif
-   // the following test is probably a random branch that won't
-   // predict well. I tried to table accelerate it but failed.
-   // maybe it's compiling as a conditional move?
-   if (k < m)
-      return (-1 << n) + k + 1;
-   else
-      return k;
-}
-
-// given a value that's at position X in the zigzag stream,
-// where does it appear in the 8x8 matrix coded as row-major?
-static stbi_uc stbi__jpeg_dezigzag[64+15] =
-{
-    0,  1,  8, 16,  9,  2,  3, 10,
-   17, 24, 32, 25, 18, 11,  4,  5,
-   12, 19, 26, 33, 40, 48, 41, 34,
-   27, 20, 13,  6,  7, 14, 21, 28,
-   35, 42, 49, 56, 57, 50, 43, 36,
-   29, 22, 15, 23, 30, 37, 44, 51,
-   58, 59, 52, 45, 38, 31, 39, 46,
-   53, 60, 61, 54, 47, 55, 62, 63,
-   // let corrupt input sample past end
-   63, 63, 63, 63, 63, 63, 63, 63,
-   63, 63, 63, 63, 63, 63, 63
-};
-
-// decode one 64-entry block--
-static int stbi__jpeg_decode_block(stbi__jpeg *j, short data[64], stbi__huffman *hdc, stbi__huffman *hac, int b)
-{
-   int diff,dc,k;
-   int t = stbi__jpeg_huff_decode(j, hdc);
-   if (t < 0) return stbi__err("bad huffman code","Corrupt JPEG");
-
-   // 0 all the ac values now so we can do it 32-bits at a time
-   memset(data,0,64*sizeof(data[0]));
-
-   diff = t ? stbi__extend_receive(j, t) : 0;
-   dc = j->img_comp[b].dc_pred + diff;
-   j->img_comp[b].dc_pred = dc;
-   data[0] = (short) dc;
-
-   // decode AC components, see JPEG spec
-   k = 1;
-   do {
-      int r,s;
-      int rs = stbi__jpeg_huff_decode(j, hac);
-      if (rs < 0) return stbi__err("bad huffman code","Corrupt JPEG");
-      s = rs & 15;
-      r = rs >> 4;
-      if (s == 0) {
-         if (rs != 0xf0) break; // end block
-         k += 16;
-      } else {
-         k += r;
-         // decode into unzigzag'd location
-         data[stbi__jpeg_dezigzag[k++]] = (short) stbi__extend_receive(j,s);
-      }
-   } while (k < 64);
-   return 1;
-}
-
-// take a -128..127 value and stbi__clamp it and convert to 0..255
-stbi_inline static stbi_uc stbi__clamp(int x)
-{
-   // trick to use a single test to catch both cases
-   if ((unsigned int) x > 255) {
-      if (x < 0) return 0;
-      if (x > 255) return 255;
-   }
-   return (stbi_uc) x;
-}
-
-#define stbi__f2f(x)  (int) (((x) * 4096 + 0.5))
-#define stbi__fsh(x)  ((x) << 12)
-
-// derived from jidctint -- DCT_ISLOW
-#define STBI__IDCT_1D(s0,s1,s2,s3,s4,s5,s6,s7)       \
-   int t0,t1,t2,t3,p1,p2,p3,p4,p5,x0,x1,x2,x3; \
-   p2 = s2;                                    \
-   p3 = s6;                                    \
-   p1 = (p2+p3) * stbi__f2f(0.5411961f);             \
-   t2 = p1 + p3*stbi__f2f(-1.847759065f);            \
-   t3 = p1 + p2*stbi__f2f( 0.765366865f);            \
-   p2 = s0;                                    \
-   p3 = s4;                                    \
-   t0 = stbi__fsh(p2+p3);                            \
-   t1 = stbi__fsh(p2-p3);                            \
-   x0 = t0+t3;                                 \
-   x3 = t0-t3;                                 \
-   x1 = t1+t2;                                 \
-   x2 = t1-t2;                                 \
-   t0 = s7;                                    \
-   t1 = s5;                                    \
-   t2 = s3;                                    \
-   t3 = s1;                                    \
-   p3 = t0+t2;                                 \
-   p4 = t1+t3;                                 \
-   p1 = t0+t3;                                 \
-   p2 = t1+t2;                                 \
-   p5 = (p3+p4)*stbi__f2f( 1.175875602f);            \
-   t0 = t0*stbi__f2f( 0.298631336f);                 \
-   t1 = t1*stbi__f2f( 2.053119869f);                 \
-   t2 = t2*stbi__f2f( 3.072711026f);                 \
-   t3 = t3*stbi__f2f( 1.501321110f);                 \
-   p1 = p5 + p1*stbi__f2f(-0.899976223f);            \
-   p2 = p5 + p2*stbi__f2f(-2.562915447f);            \
-   p3 = p3*stbi__f2f(-1.961570560f);                 \
-   p4 = p4*stbi__f2f(-0.390180644f);                 \
-   t3 += p1+p4;                                \
-   t2 += p2+p3;                                \
-   t1 += p2+p4;                                \
-   t0 += p1+p3;
-
-#ifdef STBI_SIMD
-typedef unsigned short stbi_dequantize_t;
-#else
-typedef stbi_uc stbi_dequantize_t;
-#endif
-
-// .344 seconds on 3*anemones.jpg
-static void stbi__idct_block(stbi_uc *out, int out_stride, short data[64], stbi_dequantize_t *dequantize)
-{
-   int i,val[64],*v=val;
-   stbi_dequantize_t *dq = dequantize;
-   stbi_uc *o;
-   short *d = data;
-
-   // columns
-   for (i=0; i < 8; ++i,++d,++dq, ++v) {
-      // if all zeroes, shortcut -- this avoids dequantizing 0s and IDCTing
-      if (d[ 8]==0 && d[16]==0 && d[24]==0 && d[32]==0
-           && d[40]==0 && d[48]==0 && d[56]==0) {
-         //    no shortcut                 0     seconds
-         //    (1|2|3|4|5|6|7)==0          0     seconds
-         //    all separate               -0.047 seconds
-         //    1 && 2|3 && 4|5 && 6|7:    -0.047 seconds
-         int dcterm = d[0] * dq[0] << 2;
-         v[0] = v[8] = v[16] = v[24] = v[32] = v[40] = v[48] = v[56] = dcterm;
-      } else {
-         STBI__IDCT_1D(d[ 0]*dq[ 0],d[ 8]*dq[ 8],d[16]*dq[16],d[24]*dq[24],
-                 d[32]*dq[32],d[40]*dq[40],d[48]*dq[48],d[56]*dq[56])
-         // constants scaled things up by 1<<12; let's bring them back
-         // down, but keep 2 extra bits of precision
-         x0 += 512; x1 += 512; x2 += 512; x3 += 512;
-         v[ 0] = (x0+t3) >> 10;
-         v[56] = (x0-t3) >> 10;
-         v[ 8] = (x1+t2) >> 10;
-         v[48] = (x1-t2) >> 10;
-         v[16] = (x2+t1) >> 10;
-         v[40] = (x2-t1) >> 10;
-         v[24] = (x3+t0) >> 10;
-         v[32] = (x3-t0) >> 10;
-      }
-   }
-
-   for (i=0, v=val, o=out; i < 8; ++i,v+=8,o+=out_stride) {
-      // no fast case since the first 1D IDCT spread components out
-      STBI__IDCT_1D(v[0],v[1],v[2],v[3],v[4],v[5],v[6],v[7])
-      // constants scaled things up by 1<<12, plus we had 1<<2 from first
-      // loop, plus horizontal and vertical each scale by sqrt(8) so together
-      // we've got an extra 1<<3, so 1<<17 total we need to remove.
-      // so we want to round that, which means adding 0.5 * 1<<17,
-      // aka 65536. Also, we'll end up with -128 to 127 that we want
-      // to encode as 0..255 by adding 128, so we'll add that before the shift
-      x0 += 65536 + (128<<17);
-      x1 += 65536 + (128<<17);
-      x2 += 65536 + (128<<17);
-      x3 += 65536 + (128<<17);
-      // tried computing the shifts into temps, or'ing the temps to see
-      // if any were out of range, but that was slower
-      o[0] = stbi__clamp((x0+t3) >> 17);
-      o[7] = stbi__clamp((x0-t3) >> 17);
-      o[1] = stbi__clamp((x1+t2) >> 17);
-      o[6] = stbi__clamp((x1-t2) >> 17);
-      o[2] = stbi__clamp((x2+t1) >> 17);
-      o[5] = stbi__clamp((x2-t1) >> 17);
-      o[3] = stbi__clamp((x3+t0) >> 17);
-      o[4] = stbi__clamp((x3-t0) >> 17);
-   }
-}
-
-#ifdef STBI_SIMD
-static stbi_idct_8x8 stbi__idct_installed = stbi__idct_block;
-
-STBIDEF void stbi_install_idct(stbi_idct_8x8 func)
-{
-   stbi__idct_installed = func;
-}
-#endif
-
-#define STBI__MARKER_none  0xff
-// if there's a pending marker from the entropy stream, return that
-// otherwise, fetch from the stream and get a marker. if there's no
-// marker, return 0xff, which is never a valid marker value
-static stbi_uc stbi__get_marker(stbi__jpeg *j)
-{
-   stbi_uc x;
-   if (j->marker != STBI__MARKER_none) { x = j->marker; j->marker = STBI__MARKER_none; return x; }
-   x = stbi__get8(j->s);
-   if (x != 0xff) return STBI__MARKER_none;
-   while (x == 0xff)
-      x = stbi__get8(j->s);
-   return x;
-}
-
-// in each scan, we'll have scan_n components, and the order
-// of the components is specified by order[]
-#define STBI__RESTART(x)     ((x) >= 0xd0 && (x) <= 0xd7)
-
-// after a restart interval, stbi__jpeg_reset the entropy decoder and
-// the dc prediction
-static void stbi__jpeg_reset(stbi__jpeg *j)
-{
-   j->code_bits = 0;
-   j->code_buffer = 0;
-   j->nomore = 0;
-   j->img_comp[0].dc_pred = j->img_comp[1].dc_pred = j->img_comp[2].dc_pred = 0;
-   j->marker = STBI__MARKER_none;
-   j->todo = j->restart_interval ? j->restart_interval : 0x7fffffff;
-   // no more than 1<<31 MCUs if no restart_interal? that's plenty safe,
-   // since we don't even allow 1<<30 pixels
-}
-
-static int stbi__parse_entropy_coded_data(stbi__jpeg *z)
-{
-   stbi__jpeg_reset(z);
-   if (z->scan_n == 1) {
-      int i,j;
-      #ifdef STBI_SIMD
-      __declspec(align(16))
-      #endif
-      short data[64];
-      int n = z->order[0];
-      // non-interleaved data, we just need to process one block at a time,
-      // in trivial scanline order
-      // number of blocks to do just depends on how many actual "pixels" this
-      // component has, independent of interleaved MCU blocking and such
-      int w = (z->img_comp[n].x+7) >> 3;
-      int h = (z->img_comp[n].y+7) >> 3;
-      for (j=0; j < h; ++j) {
-         for (i=0; i < w; ++i) {
-            if (!stbi__jpeg_decode_block(z, data, z->huff_dc+z->img_comp[n].hd, z->huff_ac+z->img_comp[n].ha, n)) return 0;
-            #ifdef STBI_SIMD
-            stbi__idct_installed(z->img_comp[n].data+z->img_comp[n].w2*j*8+i*8, z->img_comp[n].w2, data, z->dequant2[z->img_comp[n].tq]);
-            #else
-            stbi__idct_block(z->img_comp[n].data+z->img_comp[n].w2*j*8+i*8, z->img_comp[n].w2, data, z->dequant[z->img_comp[n].tq]);
-            #endif
-            // every data block is an MCU, so countdown the restart interval
-            if (--z->todo <= 0) {
-               if (z->code_bits < 24) stbi__grow_buffer_unsafe(z);
-               // if it's NOT a restart, then just bail, so we get corrupt data
-               // rather than no data
-               if (!STBI__RESTART(z->marker)) return 1;
-               stbi__jpeg_reset(z);
-            }
-         }
-      }
-   } else { // interleaved!
-      int i,j,k,x,y;
-      short data[64];
-      for (j=0; j < z->img_mcu_y; ++j) {
-         for (i=0; i < z->img_mcu_x; ++i) {
-            // scan an interleaved mcu... process scan_n components in order
-            for (k=0; k < z->scan_n; ++k) {
-               int n = z->order[k];
-               // scan out an mcu's worth of this component; that's just determined
-               // by the basic H and V specified for the component
-               for (y=0; y < z->img_comp[n].v; ++y) {
-                  for (x=0; x < z->img_comp[n].h; ++x) {
-                     int x2 = (i*z->img_comp[n].h + x)*8;
-                     int y2 = (j*z->img_comp[n].v + y)*8;
-                     if (!stbi__jpeg_decode_block(z, data, z->huff_dc+z->img_comp[n].hd, z->huff_ac+z->img_comp[n].ha, n)) return 0;
-                     #ifdef STBI_SIMD
-                     stbi__idct_installed(z->img_comp[n].data+z->img_comp[n].w2*y2+x2, z->img_comp[n].w2, data, z->dequant2[z->img_comp[n].tq]);
-                     #else
-                     stbi__idct_block(z->img_comp[n].data+z->img_comp[n].w2*y2+x2, z->img_comp[n].w2, data, z->dequant[z->img_comp[n].tq]);
-                     #endif
-                  }
-               }
-            }
-            // after all interleaved components, that's an interleaved MCU,
-            // so now count down the restart interval
-            if (--z->todo <= 0) {
-               if (z->code_bits < 24) stbi__grow_buffer_unsafe(z);
-               // if it's NOT a restart, then just bail, so we get corrupt data
-               // rather than no data
-               if (!STBI__RESTART(z->marker)) return 1;
-               stbi__jpeg_reset(z);
-            }
-         }
-      }
-   }
-   return 1;
-}
-
-static int stbi__process_marker(stbi__jpeg *z, int m)
-{
-   int L;
-   switch (m) {
-      case STBI__MARKER_none: // no marker found
-         return stbi__err("expected marker","Corrupt JPEG");
-
-      case 0xC2: // stbi__SOF - progressive
-         return stbi__err("progressive jpeg","JPEG format not supported (progressive)");
-
-      case 0xDD: // DRI - specify restart interval
-         if (stbi__get16be(z->s) != 4) return stbi__err("bad DRI len","Corrupt JPEG");
-         z->restart_interval = stbi__get16be(z->s);
-         return 1;
-
-      case 0xDB: // DQT - define quantization table
-         L = stbi__get16be(z->s)-2;
-         while (L > 0) {
-            int q = stbi__get8(z->s);
-            int p = q >> 4;
-            int t = q & 15,i;
-            if (p != 0) return stbi__err("bad DQT type","Corrupt JPEG");
-            if (t > 3) return stbi__err("bad DQT table","Corrupt JPEG");
-            for (i=0; i < 64; ++i)
-               z->dequant[t][stbi__jpeg_dezigzag[i]] = stbi__get8(z->s);
-            #ifdef STBI_SIMD
-            for (i=0; i < 64; ++i)
-               z->dequant2[t][i] = z->dequant[t][i];
-            #endif
-            L -= 65;
-         }
-         return L==0;
-
-      case 0xC4: // DHT - define huffman table
-         L = stbi__get16be(z->s)-2;
-         while (L > 0) {
-            stbi_uc *v;
-            int sizes[16],i,n=0;
-            int q = stbi__get8(z->s);
-            int tc = q >> 4;
-            int th = q & 15;
-            if (tc > 1 || th > 3) return stbi__err("bad DHT header","Corrupt JPEG");
-            for (i=0; i < 16; ++i) {
-               sizes[i] = stbi__get8(z->s);
-               n += sizes[i];
-            }
-            L -= 17;
-            if (tc == 0) {
-               if (!stbi__build_huffman(z->huff_dc+th, sizes)) return 0;
-               v = z->huff_dc[th].values;
-            } else {
-               if (!stbi__build_huffman(z->huff_ac+th, sizes)) return 0;
-               v = z->huff_ac[th].values;
-            }
-            for (i=0; i < n; ++i)
-               v[i] = stbi__get8(z->s);
-            L -= n;
-         }
-         return L==0;
-   }
-   // check for comment block or APP blocks
-   if ((m >= 0xE0 && m <= 0xEF) || m == 0xFE) {
-      stbi__skip(z->s, stbi__get16be(z->s)-2);
-      return 1;
-   }
-   return 0;
-}
-
-// after we see stbi__SOS
-static int stbi__process_scan_header(stbi__jpeg *z)
-{
-   int i;
-   int Ls = stbi__get16be(z->s);
-   z->scan_n = stbi__get8(z->s);
-   if (z->scan_n < 1 || z->scan_n > 4 || z->scan_n > (int) z->s->img_n) return stbi__err("bad stbi__SOS component count","Corrupt JPEG");
-   if (Ls != 6+2*z->scan_n) return stbi__err("bad stbi__SOS len","Corrupt JPEG");
-   for (i=0; i < z->scan_n; ++i) {
-      int id = stbi__get8(z->s), which;
-      int q = stbi__get8(z->s);
-      for (which = 0; which < z->s->img_n; ++which)
-         if (z->img_comp[which].id == id)
-            break;
-      if (which == z->s->img_n) return 0;
-      z->img_comp[which].hd = q >> 4;   if (z->img_comp[which].hd > 3) return stbi__err("bad DC huff","Corrupt JPEG");
-      z->img_comp[which].ha = q & 15;   if (z->img_comp[which].ha > 3) return stbi__err("bad AC huff","Corrupt JPEG");
-      z->order[i] = which;
-   }
-   if (stbi__get8(z->s) != 0) return stbi__err("bad stbi__SOS","Corrupt JPEG");
-   stbi__get8(z->s); // should be 63, but might be 0
-   if (stbi__get8(z->s) != 0) return stbi__err("bad stbi__SOS","Corrupt JPEG");
-
-   return 1;
-}
-
-static int stbi__process_frame_header(stbi__jpeg *z, int scan)
-{
-   stbi__context *s = z->s;
-   int Lf,p,i,q, h_max=1,v_max=1,c;
-   Lf = stbi__get16be(s);         if (Lf < 11) return stbi__err("bad stbi__SOF len","Corrupt JPEG"); // JPEG
-   p  = stbi__get8(s);          if (p != 8) return stbi__err("only 8-bit","JPEG format not supported: 8-bit only"); // JPEG baseline
-   s->img_y = stbi__get16be(s);   if (s->img_y == 0) return stbi__err("no header height", "JPEG format not supported: delayed height"); // Legal, but we don't handle it--but neither does IJG
-   s->img_x = stbi__get16be(s);   if (s->img_x == 0) return stbi__err("0 width","Corrupt JPEG"); // JPEG requires
-   c = stbi__get8(s);
-   if (c != 3 && c != 1) return stbi__err("bad component count","Corrupt JPEG");    // JFIF requires
-   s->img_n = c;
-   for (i=0; i < c; ++i) {
-      z->img_comp[i].data = NULL;
-      z->img_comp[i].linebuf = NULL;
-   }
-
-   if (Lf != 8+3*s->img_n) return stbi__err("bad stbi__SOF len","Corrupt JPEG");
-
-   for (i=0; i < s->img_n; ++i) {
-      z->img_comp[i].id = stbi__get8(s);
-      if (z->img_comp[i].id != i+1)   // JFIF requires
-         if (z->img_comp[i].id != i)  // some version of jpegtran outputs non-JFIF-compliant files!
-            return stbi__err("bad component ID","Corrupt JPEG");
-      q = stbi__get8(s);
-      z->img_comp[i].h = (q >> 4);  if (!z->img_comp[i].h || z->img_comp[i].h > 4) return stbi__err("bad H","Corrupt JPEG");
-      z->img_comp[i].v = q & 15;    if (!z->img_comp[i].v || z->img_comp[i].v > 4) return stbi__err("bad V","Corrupt JPEG");
-      z->img_comp[i].tq = stbi__get8(s);  if (z->img_comp[i].tq > 3) return stbi__err("bad TQ","Corrupt JPEG");
-   }
-
-   if (scan != SCAN_load) return 1;
-
-   if ((1 << 30) / s->img_x / s->img_n < s->img_y) return stbi__err("too large", "Image too large to decode");
-
-   for (i=0; i < s->img_n; ++i) {
-      if (z->img_comp[i].h > h_max) h_max = z->img_comp[i].h;
-      if (z->img_comp[i].v > v_max) v_max = z->img_comp[i].v;
-   }
-
-   // compute interleaved mcu info
-   z->img_h_max = h_max;
-   z->img_v_max = v_max;
-   z->img_mcu_w = h_max * 8;
-   z->img_mcu_h = v_max * 8;
-   z->img_mcu_x = (s->img_x + z->img_mcu_w-1) / z->img_mcu_w;
-   z->img_mcu_y = (s->img_y + z->img_mcu_h-1) / z->img_mcu_h;
-
-   for (i=0; i < s->img_n; ++i) {
-      // number of effective pixels (e.g. for non-interleaved MCU)
-      z->img_comp[i].x = (s->img_x * z->img_comp[i].h + h_max-1) / h_max;
-      z->img_comp[i].y = (s->img_y * z->img_comp[i].v + v_max-1) / v_max;
-      // to simplify generation, we'll allocate enough memory to decode
-      // the bogus oversized data from using interleaved MCUs and their
-      // big blocks (e.g. a 16x16 iMCU on an image of width 33); we won't
-      // discard the extra data until colorspace conversion
-      z->img_comp[i].w2 = z->img_mcu_x * z->img_comp[i].h * 8;
-      z->img_comp[i].h2 = z->img_mcu_y * z->img_comp[i].v * 8;
-      z->img_comp[i].raw_data = stbi__malloc(z->img_comp[i].w2 * z->img_comp[i].h2+15);
-      if (z->img_comp[i].raw_data == NULL) {
-         for(--i; i >= 0; --i) {
-            free(z->img_comp[i].raw_data);
-            z->img_comp[i].data = NULL;
-         }
-         return stbi__err("outofmem", "Out of memory");
-      }
-      // align blocks for installable-idct using mmx/sse
-      z->img_comp[i].data = (stbi_uc*) (((size_t) z->img_comp[i].raw_data + 15) & ~15);
-      z->img_comp[i].linebuf = NULL;
-   }
-
-   return 1;
-}
-
-// use comparisons since in some cases we handle more than one case (e.g. stbi__SOF)
-#define stbi__DNL(x)         ((x) == 0xdc)
-#define stbi__SOI(x)         ((x) == 0xd8)
-#define stbi__EOI(x)         ((x) == 0xd9)
-#define stbi__SOF(x)         ((x) == 0xc0 || (x) == 0xc1)
-#define stbi__SOS(x)         ((x) == 0xda)
-
-static int decode_jpeg_header(stbi__jpeg *z, int scan)
-{
-   int m;
-   z->marker = STBI__MARKER_none; // initialize cached marker to empty
-   m = stbi__get_marker(z);
-   if (!stbi__SOI(m)) return stbi__err("no stbi__SOI","Corrupt JPEG");
-   if (scan == SCAN_type) return 1;
-   m = stbi__get_marker(z);
-   while (!stbi__SOF(m)) {
-      if (!stbi__process_marker(z,m)) return 0;
-      m = stbi__get_marker(z);
-      while (m == STBI__MARKER_none) {
-         // some files have extra padding after their blocks, so ok, we'll scan
-         if (stbi__at_eof(z->s)) return stbi__err("no stbi__SOF", "Corrupt JPEG");
-         m = stbi__get_marker(z);
-      }
-   }
-   if (!stbi__process_frame_header(z, scan)) return 0;
-   return 1;
-}
-
-static int decode_jpeg_image(stbi__jpeg *j)
-{
-   int m;
-   j->restart_interval = 0;
-   if (!decode_jpeg_header(j, SCAN_load)) return 0;
-   m = stbi__get_marker(j);
-   while (!stbi__EOI(m)) {
-      if (stbi__SOS(m)) {
-         if (!stbi__process_scan_header(j)) return 0;
-         if (!stbi__parse_entropy_coded_data(j)) return 0;
-         if (j->marker == STBI__MARKER_none ) {
-            // handle 0s at the end of image data from IP Kamera 9060
-            while (!stbi__at_eof(j->s)) {
-               int x = stbi__get8(j->s);
-               if (x == 255) {
-                  j->marker = stbi__get8(j->s);
-                  break;
-               } else if (x != 0) {
-                  return 0;
-               }
-            }
-            // if we reach eof without hitting a marker, stbi__get_marker() below will fail and we'll eventually return 0
-         }
-      } else {
-         if (!stbi__process_marker(j, m)) return 0;
-      }
-      m = stbi__get_marker(j);
-   }
-   return 1;
-}
-
-// static jfif-centered resampling (across block boundaries)
-
-typedef stbi_uc *(*resample_row_func)(stbi_uc *out, stbi_uc *in0, stbi_uc *in1,
-                                    int w, int hs);
-
-#define stbi__div4(x) ((stbi_uc) ((x) >> 2))
-
-static stbi_uc *resample_row_1(stbi_uc *out, stbi_uc *in_near, stbi_uc *in_far, int w, int hs)
-{
-   STBI_NOTUSED(out);
-   STBI_NOTUSED(in_far);
-   STBI_NOTUSED(w);
-   STBI_NOTUSED(hs);
-   return in_near;
-}
-
-static stbi_uc* stbi__resample_row_v_2(stbi_uc *out, stbi_uc *in_near, stbi_uc *in_far, int w, int hs)
-{
-   // need to generate two samples vertically for every one in input
-   int i;
-   STBI_NOTUSED(hs);
-   for (i=0; i < w; ++i)
-      out[i] = stbi__div4(3*in_near[i] + in_far[i] + 2);
-   return out;
-}
-
-static stbi_uc*  stbi__resample_row_h_2(stbi_uc *out, stbi_uc *in_near, stbi_uc *in_far, int w, int hs)
-{
-   // need to generate two samples horizontally for every one in input
-   int i;
-   stbi_uc *input = in_near;
-
-   if (w == 1) {
-      // if only one sample, can't do any interpolation
-      out[0] = out[1] = input[0];
-      return out;
-   }
-
-   out[0] = input[0];
-   out[1] = stbi__div4(input[0]*3 + input[1] + 2);
-   for (i=1; i < w-1; ++i) {
-      int n = 3*input[i]+2;
-      out[i*2+0] = stbi__div4(n+input[i-1]);
-      out[i*2+1] = stbi__div4(n+input[i+1]);
-   }
-   out[i*2+0] = stbi__div4(input[w-2]*3 + input[w-1] + 2);
-   out[i*2+1] = input[w-1];
-
-   STBI_NOTUSED(in_far);
-   STBI_NOTUSED(hs);
-
-   return out;
-}
-
-#define stbi__div16(x) ((stbi_uc) ((x) >> 4))
-
-static stbi_uc *stbi__resample_row_hv_2(stbi_uc *out, stbi_uc *in_near, stbi_uc *in_far, int w, int hs)
-{
-   // need to generate 2x2 samples for every one in input
-   int i,t0,t1;
-   if (w == 1) {
-      out[0] = out[1] = stbi__div4(3*in_near[0] + in_far[0] + 2);
-      return out;
-   }
-
-   t1 = 3*in_near[0] + in_far[0];
-   out[0] = stbi__div4(t1+2);
-   for (i=1; i < w; ++i) {
-      t0 = t1;
-      t1 = 3*in_near[i]+in_far[i];
-      out[i*2-1] = stbi__div16(3*t0 + t1 + 8);
-      out[i*2  ] = stbi__div16(3*t1 + t0 + 8);
-   }
-   out[w*2-1] = stbi__div4(t1+2);
-
-   STBI_NOTUSED(hs);
-
-   return out;
-}
-
-static stbi_uc *stbi__resample_row_generic(stbi_uc *out, stbi_uc *in_near, stbi_uc *in_far, int w, int hs)
-{
-   // resample with nearest-neighbor
-   int i,j;
-   STBI_NOTUSED(in_far);
-   for (i=0; i < w; ++i)
-      for (j=0; j < hs; ++j)
-         out[i*hs+j] = in_near[i];
-   return out;
-}
-
-#define float2fixed(x)  ((int) ((x) * 65536 + 0.5))
-
-// 0.38 seconds on 3*anemones.jpg   (0.25 with processor = Pro)
-// VC6 without processor=Pro is generating multiple LEAs per multiply!
-static void stbi__YCbCr_to_RGB_row(stbi_uc *out, const stbi_uc *y, const stbi_uc *pcb, const stbi_uc *pcr, int count, int step)
-{
-   int i;
-   for (i=0; i < count; ++i) {
-      int y_fixed = (y[i] << 16) + 32768; // rounding
-      int r,g,b;
-      int cr = pcr[i] - 128;
-      int cb = pcb[i] - 128;
-      r = y_fixed + cr*float2fixed(1.40200f);
-      g = y_fixed - cr*float2fixed(0.71414f) - cb*float2fixed(0.34414f);
-      b = y_fixed                            + cb*float2fixed(1.77200f);
-      r >>= 16;
-      g >>= 16;
-      b >>= 16;
-      if ((unsigned) r > 255) { if (r < 0) r = 0; else r = 255; }
-      if ((unsigned) g > 255) { if (g < 0) g = 0; else g = 255; }
-      if ((unsigned) b > 255) { if (b < 0) b = 0; else b = 255; }
-      out[0] = (stbi_uc)r;
-      out[1] = (stbi_uc)g;
-      out[2] = (stbi_uc)b;
-      out[3] = 255;
-      out += step;
-   }
-}
-
-#ifdef STBI_SIMD
-static stbi_YCbCr_to_RGB_run stbi__YCbCr_installed = stbi__YCbCr_to_RGB_row;
-
-STBIDEF void stbi_install_YCbCr_to_RGB(stbi_YCbCr_to_RGB_run func)
-{
-   stbi__YCbCr_installed = func;
-}
-#endif
-
-
-// clean up the temporary component buffers
-static void stbi__cleanup_jpeg(stbi__jpeg *j)
-{
-   int i;
-   for (i=0; i < j->s->img_n; ++i) {
-      if (j->img_comp[i].raw_data) {
-         free(j->img_comp[i].raw_data);
-         j->img_comp[i].raw_data = NULL;
-         j->img_comp[i].data = NULL;
-      }
-      if (j->img_comp[i].linebuf) {
-         free(j->img_comp[i].linebuf);
-         j->img_comp[i].linebuf = NULL;
-      }
-   }
-}
-
-typedef struct
-{
-   resample_row_func resample;
-   stbi_uc *line0,*line1;
-   int hs,vs;   // expansion factor in each axis
-   int w_lores; // horizontal pixels pre-expansion 
-   int ystep;   // how far through vertical expansion we are
-   int ypos;    // which pre-expansion row we're on
-} stbi__resample;
-
-static stbi_uc *load_jpeg_image(stbi__jpeg *z, int *out_x, int *out_y, int *comp, int req_comp)
-{
-   int n, decode_n;
-   z->s->img_n = 0; // make stbi__cleanup_jpeg safe
-
-   // validate req_comp
-   if (req_comp < 0 || req_comp > 4) return stbi__errpuc("bad req_comp", "Internal error");
-
-   // load a jpeg image from whichever source
-   if (!decode_jpeg_image(z)) { stbi__cleanup_jpeg(z); return NULL; }
-
-   // determine actual number of components to generate
-   n = req_comp ? req_comp : z->s->img_n;
-
-   if (z->s->img_n == 3 && n < 3)
-      decode_n = 1;
-   else
-      decode_n = z->s->img_n;
-
-   // resample and color-convert
-   {
-      int k;
-      unsigned int i,j;
-      stbi_uc *output;
-      stbi_uc *coutput[4];
-
-      stbi__resample res_comp[4];
-
-      for (k=0; k < decode_n; ++k) {
-         stbi__resample *r = &res_comp[k];
-
-         // allocate line buffer big enough for upsampling off the edges
-         // with upsample factor of 4
-         z->img_comp[k].linebuf = (stbi_uc *) stbi__malloc(z->s->img_x + 3);
-         if (!z->img_comp[k].linebuf) { stbi__cleanup_jpeg(z); return stbi__errpuc("outofmem", "Out of memory"); }
-
-         r->hs      = z->img_h_max / z->img_comp[k].h;
-         r->vs      = z->img_v_max / z->img_comp[k].v;
-         r->ystep   = r->vs >> 1;
-         r->w_lores = (z->s->img_x + r->hs-1) / r->hs;
-         r->ypos    = 0;
-         r->line0   = r->line1 = z->img_comp[k].data;
-
-         if      (r->hs == 1 && r->vs == 1) r->resample = resample_row_1;
-         else if (r->hs == 1 && r->vs == 2) r->resample = stbi__resample_row_v_2;
-         else if (r->hs == 2 && r->vs == 1) r->resample = stbi__resample_row_h_2;
-         else if (r->hs == 2 && r->vs == 2) r->resample = stbi__resample_row_hv_2;
-         else                               r->resample = stbi__resample_row_generic;
-      }
-
-      // can't error after this so, this is safe
-      output = (stbi_uc *) stbi__malloc(n * z->s->img_x * z->s->img_y + 1);
-      if (!output) { stbi__cleanup_jpeg(z); return stbi__errpuc("outofmem", "Out of memory"); }
-
-      // now go ahead and resample
-      for (j=0; j < z->s->img_y; ++j) {
-         stbi_uc *out = output + n * z->s->img_x * j;
-         for (k=0; k < decode_n; ++k) {
-            stbi__resample *r = &res_comp[k];
-            int y_bot = r->ystep >= (r->vs >> 1);
-            coutput[k] = r->resample(z->img_comp[k].linebuf,
-                                     y_bot ? r->line1 : r->line0,
-                                     y_bot ? r->line0 : r->line1,
-                                     r->w_lores, r->hs);
-            if (++r->ystep >= r->vs) {
-               r->ystep = 0;
-               r->line0 = r->line1;
-               if (++r->ypos < z->img_comp[k].y)
-                  r->line1 += z->img_comp[k].w2;
-            }
-         }
-         if (n >= 3) {
-            stbi_uc *y = coutput[0];
-            if (z->s->img_n == 3) {
-               #ifdef STBI_SIMD
-               stbi__YCbCr_installed(out, y, coutput[1], coutput[2], z->s->img_x, n);
-               #else
-               stbi__YCbCr_to_RGB_row(out, y, coutput[1], coutput[2], z->s->img_x, n);
-               #endif
-            } else
-               for (i=0; i < z->s->img_x; ++i) {
-                  out[0] = out[1] = out[2] = y[i];
-                  out[3] = 255; // not used if n==3
-                  out += n;
-               }
-         } else {
-            stbi_uc *y = coutput[0];
-            if (n == 1)
-               for (i=0; i < z->s->img_x; ++i) out[i] = y[i];
-            else
-               for (i=0; i < z->s->img_x; ++i) *out++ = y[i], *out++ = 255;
-         }
-      }
-      stbi__cleanup_jpeg(z);
-      *out_x = z->s->img_x;
-      *out_y = z->s->img_y;
-      if (comp) *comp  = z->s->img_n; // report original components, not output
-      return output;
-   }
-}
-
-static unsigned char *stbi__jpeg_load(stbi__context *s, int *x, int *y, int *comp, int req_comp)
-{
-   stbi__jpeg j;
-   j.s = s;
-   return load_jpeg_image(&j, x,y,comp,req_comp);
-}
-
-static int stbi__jpeg_test(stbi__context *s)
-{
-   int r;
-   stbi__jpeg j;
-   j.s = s;
-   r = decode_jpeg_header(&j, SCAN_type);
-   stbi__rewind(s);
-   return r;
-}
-
-static int stbi__jpeg_info_raw(stbi__jpeg *j, int *x, int *y, int *comp)
-{
-   if (!decode_jpeg_header(j, SCAN_header)) {
-      stbi__rewind( j->s );
-      return 0;
-   }
-   if (x) *x = j->s->img_x;
-   if (y) *y = j->s->img_y;
-   if (comp) *comp = j->s->img_n;
-   return 1;
-}
-
-static int stbi__jpeg_info(stbi__context *s, int *x, int *y, int *comp)
-{
-   stbi__jpeg j;
-   j.s = s;
-   return stbi__jpeg_info_raw(&j, x, y, comp);
-}
-
-// public domain zlib decode    v0.2  Sean Barrett 2006-11-18
-//    simple implementation
-//      - all input must be provided in an upfront buffer
-//      - all output is written to a single output buffer (can malloc/realloc)
-//    performance
-//      - fast huffman
-
-// fast-way is faster to check than jpeg huffman, but slow way is slower
-#define STBI__ZFAST_BITS  9 // accelerate all cases in default tables
-#define STBI__ZFAST_MASK  ((1 << STBI__ZFAST_BITS) - 1)
-
-// zlib-style huffman encoding
-// (jpegs packs from left, zlib from right, so can't share code)
-typedef struct
-{
-   stbi__uint16 fast[1 << STBI__ZFAST_BITS];
-   stbi__uint16 firstcode[16];
-   int maxcode[17];
-   stbi__uint16 firstsymbol[16];
-   stbi_uc  size[288];
-   stbi__uint16 value[288]; 
-} stbi__zhuffman;
-
-stbi_inline static int stbi__bitreverse16(int n)
-{
-  n = ((n & 0xAAAA) >>  1) | ((n & 0x5555) << 1);
-  n = ((n & 0xCCCC) >>  2) | ((n & 0x3333) << 2);
-  n = ((n & 0xF0F0) >>  4) | ((n & 0x0F0F) << 4);
-  n = ((n & 0xFF00) >>  8) | ((n & 0x00FF) << 8);
-  return n;
-}
-
-stbi_inline static int stbi__bit_reverse(int v, int bits)
-{
-   STBI_ASSERT(bits <= 16);
-   // to bit reverse n bits, reverse 16 and shift
-   // e.g. 11 bits, bit reverse and shift away 5
-   return stbi__bitreverse16(v) >> (16-bits);
-}
-
-static int stbi__zbuild_huffman(stbi__zhuffman *z, stbi_uc *sizelist, int num)
-{
-   int i,k=0;
-   int code, next_code[16], sizes[17];
-
-   // DEFLATE spec for generating codes
-   memset(sizes, 0, sizeof(sizes));
-   memset(z->fast, 255, sizeof(z->fast));
-   for (i=0; i < num; ++i) 
-      ++sizes[sizelist[i]];
-   sizes[0] = 0;
-   for (i=1; i < 16; ++i)
-      STBI_ASSERT(sizes[i] <= (1 << i));
-   code = 0;
-   for (i=1; i < 16; ++i) {
-      next_code[i] = code;
-      z->firstcode[i] = (stbi__uint16) code;
-      z->firstsymbol[i] = (stbi__uint16) k;
-      code = (code + sizes[i]);
-      if (sizes[i])
-         if (code-1 >= (1 << i)) return stbi__err("bad codelengths","Corrupt JPEG");
-      z->maxcode[i] = code << (16-i); // preshift for inner loop
-      code <<= 1;
-      k += sizes[i];
-   }
-   z->maxcode[16] = 0x10000; // sentinel
-   for (i=0; i < num; ++i) {
-      int s = sizelist[i];
-      if (s) {
-         int c = next_code[s] - z->firstcode[s] + z->firstsymbol[s];
-         z->size [c] = (stbi_uc     ) s;
-         z->value[c] = (stbi__uint16) i;
-         if (s <= STBI__ZFAST_BITS) {
-            int k = stbi__bit_reverse(next_code[s],s);
-            while (k < (1 << STBI__ZFAST_BITS)) {
-               z->fast[k] = (stbi__uint16) c;
-               k += (1 << s);
-            }
-         }
-         ++next_code[s];
-      }
-   }
-   return 1;
-}
-
-// zlib-from-memory implementation for PNG reading
-//    because PNG allows splitting the zlib stream arbitrarily,
-//    and it's annoying structurally to have PNG call ZLIB call PNG,
-//    we require PNG read all the IDATs and combine them into a single
-//    memory buffer
-
-typedef struct
-{
-   stbi_uc *zbuffer, *zbuffer_end;
-   int num_bits;
-   stbi__uint32 code_buffer;
-
-   char *zout;
-   char *zout_start;
-   char *zout_end;
-   int   z_expandable;
-
-   stbi__zhuffman z_length, z_distance;
-} stbi__zbuf;
-
-stbi_inline static stbi_uc stbi__zget8(stbi__zbuf *z)
-{
-   if (z->zbuffer >= z->zbuffer_end) return 0;
-   return *z->zbuffer++;
-}
-
-static void stbi__fill_bits(stbi__zbuf *z)
-{
-   do {
-      STBI_ASSERT(z->code_buffer < (1U << z->num_bits));
-      z->code_buffer |= stbi__zget8(z) << z->num_bits;
-      z->num_bits += 8;
-   } while (z->num_bits <= 24);
-}
-
-stbi_inline static unsigned int stbi__zreceive(stbi__zbuf *z, int n)
-{
-   unsigned int k;
-   if (z->num_bits < n) stbi__fill_bits(z);
-   k = z->code_buffer & ((1 << n) - 1);
-   z->code_buffer >>= n;
-   z->num_bits -= n;
-   return k;   
-}
-
-stbi_inline static int stbi__zhuffman_decode(stbi__zbuf *a, stbi__zhuffman *z)
-{
-   int b,s,k;
-   if (a->num_bits < 16) stbi__fill_bits(a);
-   b = z->fast[a->code_buffer & STBI__ZFAST_MASK];
-   if (b < 0xffff) {
-      s = z->size[b];
-      a->code_buffer >>= s;
-      a->num_bits -= s;
-      return z->value[b];
-   }
-
-   // not resolved by fast table, so compute it the slow way
-   // use jpeg approach, which requires MSbits at top
-   k = stbi__bit_reverse(a->code_buffer, 16);
-   for (s=STBI__ZFAST_BITS+1; ; ++s)
-      if (k < z->maxcode[s])
-         break;
-   if (s == 16) return -1; // invalid code!
-   // code size is s, so:
-   b = (k >> (16-s)) - z->firstcode[s] + z->firstsymbol[s];
-   STBI_ASSERT(z->size[b] == s);
-   a->code_buffer >>= s;
-   a->num_bits -= s;
-   return z->value[b];
-}
-
-static int stbi__zexpand(stbi__zbuf *z, int n)  // need to make room for n bytes
-{
-   char *q;
-   int cur, limit;
-   if (!z->z_expandable) return stbi__err("output buffer limit","Corrupt PNG");
-   cur   = (int) (z->zout     - z->zout_start);
-   limit = (int) (z->zout_end - z->zout_start);
-   while (cur + n > limit)
-      limit *= 2;
-   q = (char *) realloc(z->zout_start, limit);
-   if (q == NULL) return stbi__err("outofmem", "Out of memory");
-   z->zout_start = q;
-   z->zout       = q + cur;
-   z->zout_end   = q + limit;
-   return 1;
-}
-
-static int stbi__zlength_base[31] = {
-   3,4,5,6,7,8,9,10,11,13,
-   15,17,19,23,27,31,35,43,51,59,
-   67,83,99,115,131,163,195,227,258,0,0 };
-
-static int stbi__zlength_extra[31]= 
-{ 0,0,0,0,0,0,0,0,1,1,1,1,2,2,2,2,3,3,3,3,4,4,4,4,5,5,5,5,0,0,0 };
-
-static int stbi__zdist_base[32] = { 1,2,3,4,5,7,9,13,17,25,33,49,65,97,129,193,
-257,385,513,769,1025,1537,2049,3073,4097,6145,8193,12289,16385,24577,0,0};
-
-static int stbi__zdist_extra[32] =
-{ 0,0,0,0,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,12,12,13,13};
-
-static int stbi__parse_huffman_block(stbi__zbuf *a)
-{
-   for(;;) {
-      int z = stbi__zhuffman_decode(a, &a->z_length);
-      if (z < 256) {
-         if (z < 0) return stbi__err("bad huffman code","Corrupt PNG"); // error in huffman codes
-         if (a->zout >= a->zout_end) if (!stbi__zexpand(a, 1)) return 0;
-         *a->zout++ = (char) z;
-      } else {
-         stbi_uc *p;
-         int len,dist;
-         if (z == 256) return 1;
-         z -= 257;
-         len = stbi__zlength_base[z];
-         if (stbi__zlength_extra[z]) len += stbi__zreceive(a, stbi__zlength_extra[z]);
-         z = stbi__zhuffman_decode(a, &a->z_distance);
-         if (z < 0) return stbi__err("bad huffman code","Corrupt PNG");
-         dist = stbi__zdist_base[z];
-         if (stbi__zdist_extra[z]) dist += stbi__zreceive(a, stbi__zdist_extra[z]);
-         if (a->zout - a->zout_start < dist) return stbi__err("bad dist","Corrupt PNG");
-         if (a->zout + len > a->zout_end) if (!stbi__zexpand(a, len)) return 0;
-         p = (stbi_uc *) (a->zout - dist);
-         while (len--)
-            *a->zout++ = *p++;
-      }
-   }
-}
-
-static int stbi__compute_huffman_codes(stbi__zbuf *a)
-{
-   static stbi_uc length_dezigzag[19] = { 16,17,18,0,8,7,9,6,10,5,11,4,12,3,13,2,14,1,15 };
-   stbi__zhuffman z_codelength;
-   stbi_uc lencodes[286+32+137];//padding for maximum single op
-   stbi_uc codelength_sizes[19];
-   int i,n;
-
-   int hlit  = stbi__zreceive(a,5) + 257;
-   int hdist = stbi__zreceive(a,5) + 1;
-   int hclen = stbi__zreceive(a,4) + 4;
-
-   memset(codelength_sizes, 0, sizeof(codelength_sizes));
-   for (i=0; i < hclen; ++i) {
-      int s = stbi__zreceive(a,3);
-      codelength_sizes[length_dezigzag[i]] = (stbi_uc) s;
-   }
-   if (!stbi__zbuild_huffman(&z_codelength, codelength_sizes, 19)) return 0;
-
-   n = 0;
-   while (n < hlit + hdist) {
-      int c = stbi__zhuffman_decode(a, &z_codelength);
-      STBI_ASSERT(c >= 0 && c < 19);
-      if (c < 16)
-         lencodes[n++] = (stbi_uc) c;
-      else if (c == 16) {
-         c = stbi__zreceive(a,2)+3;
-         memset(lencodes+n, lencodes[n-1], c);
-         n += c;
-      } else if (c == 17) {
-         c = stbi__zreceive(a,3)+3;
-         memset(lencodes+n, 0, c);
-         n += c;
-      } else {
-         STBI_ASSERT(c == 18);
-         c = stbi__zreceive(a,7)+11;
-         memset(lencodes+n, 0, c);
-         n += c;
-      }
-   }
-   if (n != hlit+hdist) return stbi__err("bad codelengths","Corrupt PNG");
-   if (!stbi__zbuild_huffman(&a->z_length, lencodes, hlit)) return 0;
-   if (!stbi__zbuild_huffman(&a->z_distance, lencodes+hlit, hdist)) return 0;
-   return 1;
-}
-
-static int stbi__parse_uncomperssed_block(stbi__zbuf *a)
-{
-   stbi_uc header[4];
-   int len,nlen,k;
-   if (a->num_bits & 7)
-      stbi__zreceive(a, a->num_bits & 7); // discard
-   // drain the bit-packed data into header
-   k = 0;
-   while (a->num_bits > 0) {
-      header[k++] = (stbi_uc) (a->code_buffer & 255); // suppress MSVC run-time check
-      a->code_buffer >>= 8;
-      a->num_bits -= 8;
-   }
-   STBI_ASSERT(a->num_bits == 0);
-   // now fill header the normal way
-   while (k < 4)
-      header[k++] = stbi__zget8(a);
-   len  = header[1] * 256 + header[0];
-   nlen = header[3] * 256 + header[2];
-   if (nlen != (len ^ 0xffff)) return stbi__err("zlib corrupt","Corrupt PNG");
-   if (a->zbuffer + len > a->zbuffer_end) return stbi__err("read past buffer","Corrupt PNG");
-   if (a->zout + len > a->zout_end)
-      if (!stbi__zexpand(a, len)) return 0;
-   memcpy(a->zout, a->zbuffer, len);
-   a->zbuffer += len;
-   a->zout += len;
-   return 1;
-}
-
-static int stbi__parse_zlib_header(stbi__zbuf *a)
-{
-   int cmf   = stbi__zget8(a);
-   int cm    = cmf & 15;
-   /* int cinfo = cmf >> 4; */
-   int flg   = stbi__zget8(a);
-   if ((cmf*256+flg) % 31 != 0) return stbi__err("bad zlib header","Corrupt PNG"); // zlib spec
-   if (flg & 32) return stbi__err("no preset dict","Corrupt PNG"); // preset dictionary not allowed in png
-   if (cm != 8) return stbi__err("bad compression","Corrupt PNG"); // DEFLATE required for png
-   // window = 1 << (8 + cinfo)... but who cares, we fully buffer output
-   return 1;
-}
-
-// @TODO: should statically initialize these for optimal thread safety
-static stbi_uc stbi__zdefault_length[288], stbi__zdefault_distance[32];
-static void stbi__init_zdefaults(void)
-{
-   int i;   // use <= to match clearly with spec
-   for (i=0; i <= 143; ++i)     stbi__zdefault_length[i]   = 8;
-   for (   ; i <= 255; ++i)     stbi__zdefault_length[i]   = 9;
-   for (   ; i <= 279; ++i)     stbi__zdefault_length[i]   = 7;
-   for (   ; i <= 287; ++i)     stbi__zdefault_length[i]   = 8;
-
-   for (i=0; i <=  31; ++i)     stbi__zdefault_distance[i] = 5;
-}
-
-static int stbi__parse_zlib(stbi__zbuf *a, int parse_header)
-{
-   int final, type;
-   if (parse_header)
-      if (!stbi__parse_zlib_header(a)) return 0;
-   a->num_bits = 0;
-   a->code_buffer = 0;
-   do {
-      final = stbi__zreceive(a,1);
-      type = stbi__zreceive(a,2);
-      if (type == 0) {
-         if (!stbi__parse_uncomperssed_block(a)) return 0;
-      } else if (type == 3) {
-         return 0;
-      } else {
-         if (type == 1) {
-            // use fixed code lengths
-            if (!stbi__zdefault_distance[31]) stbi__init_zdefaults();
-            if (!stbi__zbuild_huffman(&a->z_length  , stbi__zdefault_length  , 288)) return 0;
-            if (!stbi__zbuild_huffman(&a->z_distance, stbi__zdefault_distance,  32)) return 0;
-         } else {
-            if (!stbi__compute_huffman_codes(a)) return 0;
-         }
-         if (!stbi__parse_huffman_block(a)) return 0;
-      }
-   } while (!final);
-   return 1;
-}
-
-static int stbi__do_zlib(stbi__zbuf *a, char *obuf, int olen, int exp, int parse_header)
-{
-   a->zout_start = obuf;
-   a->zout       = obuf;
-   a->zout_end   = obuf + olen;
-   a->z_expandable = exp;
-
-   return stbi__parse_zlib(a, parse_header);
-}
-
-STBIDEF char *stbi_zlib_decode_malloc_guesssize(const char *buffer, int len, int initial_size, int *outlen)
-{
-   stbi__zbuf a;
-   char *p = (char *) stbi__malloc(initial_size);
-   if (p == NULL) return NULL;
-   a.zbuffer = (stbi_uc *) buffer;
-   a.zbuffer_end = (stbi_uc *) buffer + len;
-   if (stbi__do_zlib(&a, p, initial_size, 1, 1)) {
-      if (outlen) *outlen = (int) (a.zout - a.zout_start);
-      return a.zout_start;
-   } else {
-      free(a.zout_start);
-      return NULL;
-   }
-}
-
-STBIDEF char *stbi_zlib_decode_malloc(char const *buffer, int len, int *outlen)
-{
-   return stbi_zlib_decode_malloc_guesssize(buffer, len, 16384, outlen);
-}
-
-STBIDEF char *stbi_zlib_decode_malloc_guesssize_headerflag(const char *buffer, int len, int initial_size, int *outlen, int parse_header)
-{
-   stbi__zbuf a;
-   char *p = (char *) stbi__malloc(initial_size);
-   if (p == NULL) return NULL;
-   a.zbuffer = (stbi_uc *) buffer;
-   a.zbuffer_end = (stbi_uc *) buffer + len;
-   if (stbi__do_zlib(&a, p, initial_size, 1, parse_header)) {
-      if (outlen) *outlen = (int) (a.zout - a.zout_start);
-      return a.zout_start;
-   } else {
-      free(a.zout_start);
-      return NULL;
-   }
-}
-
-STBIDEF int stbi_zlib_decode_buffer(char *obuffer, int olen, char const *ibuffer, int ilen)
-{
-   stbi__zbuf a;
-   a.zbuffer = (stbi_uc *) ibuffer;
-   a.zbuffer_end = (stbi_uc *) ibuffer + ilen;
-   if (stbi__do_zlib(&a, obuffer, olen, 0, 1))
-      return (int) (a.zout - a.zout_start);
-   else
-      return -1;
-}
-
-STBIDEF char *stbi_zlib_decode_noheader_malloc(char const *buffer, int len, int *outlen)
-{
-   stbi__zbuf a;
-   char *p = (char *) stbi__malloc(16384);
-   if (p == NULL) return NULL;
-   a.zbuffer = (stbi_uc *) buffer;
-   a.zbuffer_end = (stbi_uc *) buffer+len;
-   if (stbi__do_zlib(&a, p, 16384, 1, 0)) {
-      if (outlen) *outlen = (int) (a.zout - a.zout_start);
-      return a.zout_start;
-   } else {
-      free(a.zout_start);
-      return NULL;
-   }
-}
-
-STBIDEF int stbi_zlib_decode_noheader_buffer(char *obuffer, int olen, const char *ibuffer, int ilen)
-{
-   stbi__zbuf a;
-   a.zbuffer = (stbi_uc *) ibuffer;
-   a.zbuffer_end = (stbi_uc *) ibuffer + ilen;
-   if (stbi__do_zlib(&a, obuffer, olen, 0, 0))
-      return (int) (a.zout - a.zout_start);
-   else
-      return -1;
-}
-
-// public domain "baseline" PNG decoder   v0.10  Sean Barrett 2006-11-18
-//    simple implementation
-//      - only 8-bit samples
-//      - no CRC checking
-//      - allocates lots of intermediate memory
-//        - avoids problem of streaming data between subsystems
-//        - avoids explicit window management
-//    performance
-//      - uses stb_zlib, a PD zlib implementation with fast huffman decoding
-
-
-typedef struct
-{
-   stbi__uint32 length;
-   stbi__uint32 type;
-} stbi__pngchunk;
-
-#define PNG_TYPE(a,b,c,d)  (((a) << 24) + ((b) << 16) + ((c) << 8) + (d))
-
-static stbi__pngchunk stbi__get_chunk_header(stbi__context *s)
-{
-   stbi__pngchunk c;
-   c.length = stbi__get32be(s);
-   c.type   = stbi__get32be(s);
-   return c;
-}
-
-static int stbi__check_png_header(stbi__context *s)
-{
-   static stbi_uc png_sig[8] = { 137,80,78,71,13,10,26,10 };
-   int i;
-   for (i=0; i < 8; ++i)
-      if (stbi__get8(s) != png_sig[i]) return stbi__err("bad png sig","Not a PNG");
-   return 1;
-}
-
-typedef struct
-{
-   stbi__context *s;
-   stbi_uc *idata, *expanded, *out;
-} stbi__png;
-
-
-enum {
-   STBI__F_none=0, STBI__F_sub=1, STBI__F_up=2, STBI__F_avg=3, STBI__F_paeth=4,
-   STBI__F_avg_first, STBI__F_paeth_first
-};
-
-static stbi_uc first_row_filter[5] =
-{
-   STBI__F_none, STBI__F_sub, STBI__F_none, STBI__F_avg_first, STBI__F_paeth_first
-};
-
-static int stbi__paeth(int a, int b, int c)
-{
-   int p = a + b - c;
-   int pa = abs(p-a);
-   int pb = abs(p-b);
-   int pc = abs(p-c);
-   if (pa <= pb && pa <= pc) return a;
-   if (pb <= pc) return b;
-   return c;
-}
-
-#define STBI__BYTECAST(x)  ((stbi_uc) ((x) & 255))  // truncate int to byte without warnings
-
-// create the png data from post-deflated data
-static int stbi__create_png_image_raw(stbi__png *a, stbi_uc *raw, stbi__uint32 raw_len, int out_n, stbi__uint32 x, stbi__uint32 y, int depth, int color)
-{
-   stbi__context *s = a->s;
-   stbi__uint32 i,j,stride = x*out_n;
-   stbi__uint32 img_len;
-   int k;
-   int img_n = s->img_n; // copy it into a local for later
-   stbi_uc* line8 = NULL; // point into raw when depth==8 else temporary local buffer
-
-   STBI_ASSERT(out_n == s->img_n || out_n == s->img_n+1);
-   a->out = (stbi_uc *) stbi__malloc(x * y * out_n);
-   if (!a->out) return stbi__err("outofmem", "Out of memory");
-
-   img_len = ((((img_n * x * depth) + 7) >> 3) + 1) * y;
-   if (s->img_x == x && s->img_y == y) {
-      if (raw_len != img_len) return stbi__err("not enough pixels","Corrupt PNG");
-   } else { // interlaced:
-      if (raw_len < img_len) return stbi__err("not enough pixels","Corrupt PNG");
-   }
-
-   if (depth != 8) {
-      line8 = (stbi_uc *) stbi__malloc((x+7) * out_n); // allocate buffer for one scanline
-      if (!line8) return stbi__err("outofmem", "Out of memory");
-   }
-
-   for (j=0; j < y; ++j) {
-      stbi_uc *in;
-      stbi_uc *cur = a->out + stride*j;
-      stbi_uc *prior = cur - stride;
-      int filter = *raw++;
-      if (filter > 4) {
-         if (depth != 8) free(line8);
-         return stbi__err("invalid filter","Corrupt PNG");
-      }
-
-      if (depth == 8) {
-         in = raw;
-         raw += x*img_n;
-      }
-      else {
-         // unpack 1/2/4-bit into a 8-bit buffer. allows us to keep the common 8-bit path optimal at minimal cost for 1/2/4-bit
-         // png guarante byte alignment, if width is not multiple of 8/4/2 we'll decode dummy trailing data that will be skipped in the later loop
-         in = line8;
-         stbi_uc* decode_out = line8;
-         stbi_uc scale = (color == 0) ? 0xFF/((1<<depth)-1) : 1; // scale grayscale values to 0..255 range
-         if (depth == 4) {
-            for (k=x*img_n; k >= 1; k-=2, raw++) {
-               *decode_out++ = scale * ((*raw >> 4)       );
-               *decode_out++ = scale * ((*raw     ) & 0x0f);
-            }
-         } else if (depth == 2) {
-            for (k=x*img_n; k >= 1; k-=4, raw++) {
-               *decode_out++ = scale * ((*raw >> 6)       );
-               *decode_out++ = scale * ((*raw >> 4) & 0x03);
-               *decode_out++ = scale * ((*raw >> 2) & 0x03);
-               *decode_out++ = scale * ((*raw     ) & 0x03);
-            }
-         } else if (depth == 1) {
-            for (k=x*img_n; k >= 1; k-=8, raw++) {
-               *decode_out++ = scale * ((*raw >> 7)       );
-               *decode_out++ = scale * ((*raw >> 6) & 0x01);
-               *decode_out++ = scale * ((*raw >> 5) & 0x01);
-               *decode_out++ = scale * ((*raw >> 4) & 0x01);
-               *decode_out++ = scale * ((*raw >> 3) & 0x01);
-               *decode_out++ = scale * ((*raw >> 2) & 0x01);
-               *decode_out++ = scale * ((*raw >> 1) & 0x01);
-               *decode_out++ = scale * ((*raw     ) & 0x01);
-            }
-         }
-      }
-
-      // if first row, use special filter that doesn't sample previous row
-      if (j == 0) filter = first_row_filter[filter];
-
-      // handle first pixel explicitly
-      for (k=0; k < img_n; ++k) {
-         switch (filter) {
-            case STBI__F_none       : cur[k] = in[k]; break;
-            case STBI__F_sub        : cur[k] = in[k]; break;
-            case STBI__F_up         : cur[k] = STBI__BYTECAST(in[k] + prior[k]); break;
-            case STBI__F_avg        : cur[k] = STBI__BYTECAST(in[k] + (prior[k]>>1)); break;
-            case STBI__F_paeth      : cur[k] = STBI__BYTECAST(in[k] + stbi__paeth(0,prior[k],0)); break;
-            case STBI__F_avg_first  : cur[k] = in[k]; break;
-            case STBI__F_paeth_first: cur[k] = in[k]; break;
-         }
-      }
-      if (img_n != out_n) cur[img_n] = 255;
-      in += img_n;
-      cur += out_n;
-      prior += out_n;
-      // this is a little gross, so that we don't switch per-pixel or per-component
-      if (img_n == out_n) {
-         #define CASE(f) \
-             case f:     \
-                for (i=x-1; i >= 1; --i, in+=img_n,cur+=img_n,prior+=img_n) \
-                   for (k=0; k < img_n; ++k)
-         switch (filter) {
-            CASE(STBI__F_none)         cur[k] = in[k]; break;
-            CASE(STBI__F_sub)          cur[k] = STBI__BYTECAST(in[k] + cur[k-img_n]); break;
-            CASE(STBI__F_up)           cur[k] = STBI__BYTECAST(in[k] + prior[k]); break;
-            CASE(STBI__F_avg)          cur[k] = STBI__BYTECAST(in[k] + ((prior[k] + cur[k-img_n])>>1)); break;
-            CASE(STBI__F_paeth)        cur[k] = STBI__BYTECAST(in[k] + stbi__paeth(cur[k-img_n],prior[k],prior[k-img_n])); break;
-            CASE(STBI__F_avg_first)    cur[k] = STBI__BYTECAST(in[k] + (cur[k-img_n] >> 1)); break;
-            CASE(STBI__F_paeth_first)  cur[k] = STBI__BYTECAST(in[k] + stbi__paeth(cur[k-img_n],0,0)); break;
-         }
-         #undef CASE
-      } else {
-         STBI_ASSERT(img_n+1 == out_n);
-         #define CASE(f) \
-             case f:     \
-                for (i=x-1; i >= 1; --i, cur[img_n]=255,in+=img_n,cur+=out_n,prior+=out_n) \
-                   for (k=0; k < img_n; ++k)
-         switch (filter) {
-            CASE(STBI__F_none)         cur[k] = in[k]; break;
-            CASE(STBI__F_sub)          cur[k] = STBI__BYTECAST(in[k] + cur[k-out_n]); break;
-            CASE(STBI__F_up)           cur[k] = STBI__BYTECAST(in[k] + prior[k]); break;
-            CASE(STBI__F_avg)          cur[k] = STBI__BYTECAST(in[k] + ((prior[k] + cur[k-out_n])>>1)); break;
-            CASE(STBI__F_paeth)        cur[k] = STBI__BYTECAST(in[k] + stbi__paeth(cur[k-out_n],prior[k],prior[k-out_n])); break;
-            CASE(STBI__F_avg_first)    cur[k] = STBI__BYTECAST(in[k] + (cur[k-out_n] >> 1)); break;
-            CASE(STBI__F_paeth_first)  cur[k] = STBI__BYTECAST(in[k] + stbi__paeth(cur[k-out_n],0,0)); break;
-         }
-         #undef CASE
-      }
-   }
-
-   if (depth != 8) free(line8);
-   return 1;
-}
-
-static int stbi__create_png_image(stbi__png *a, stbi_uc *raw, stbi__uint32 raw_len, int out_n, int depth, int color, int interlaced)
-{
-   stbi_uc *final;
-   int p;
-   if (!interlaced)
-      return stbi__create_png_image_raw(a, raw, raw_len, out_n, a->s->img_x, a->s->img_y, depth, color);
-
-   // de-interlacing
-   final = (stbi_uc *) stbi__malloc(a->s->img_x * a->s->img_y * out_n);
-   for (p=0; p < 7; ++p) {
-      int xorig[] = { 0,4,0,2,0,1,0 };
-      int yorig[] = { 0,0,4,0,2,0,1 };
-      int xspc[]  = { 8,8,4,4,2,2,1 };
-      int yspc[]  = { 8,8,8,4,4,2,2 };
-      int i,j,x,y;
-      // pass1_x[4] = 0, pass1_x[5] = 1, pass1_x[12] = 1
-      x = (a->s->img_x - xorig[p] + xspc[p]-1) / xspc[p];
-      y = (a->s->img_y - yorig[p] + yspc[p]-1) / yspc[p];
-      if (x && y) {
-         stbi__uint32 img_len = ((((out_n * x * depth) + 7) >> 3) + 1) * y;
-         if (!stbi__create_png_image_raw(a, raw, raw_len, out_n, x, y, depth, color)) {
-            free(final);
-            return 0;
-         }
-         for (j=0; j < y; ++j)
-            for (i=0; i < x; ++i)
-               memcpy(final + (j*yspc[p]+yorig[p])*a->s->img_x*out_n + (i*xspc[p]+xorig[p])*out_n,
-                      a->out + (j*x+i)*out_n, out_n);
-         free(a->out);
-         raw += img_len;
-         raw_len -= img_len;
-      }
-   }
-   a->out = final;
-
-   return 1;
-}
-
-static int stbi__compute_transparency(stbi__png *z, stbi_uc tc[3], int out_n)
-{
-   stbi__context *s = z->s;
-   stbi__uint32 i, pixel_count = s->img_x * s->img_y;
-   stbi_uc *p = z->out;
-
-   // compute color-based transparency, assuming we've
-   // already got 255 as the alpha value in the output
-   STBI_ASSERT(out_n == 2 || out_n == 4);
-
-   if (out_n == 2) {
-      for (i=0; i < pixel_count; ++i) {
-         p[1] = (p[0] == tc[0] ? 0 : 255);
-         p += 2;
-      }
-   } else {
-      for (i=0; i < pixel_count; ++i) {
-         if (p[0] == tc[0] && p[1] == tc[1] && p[2] == tc[2])
-            p[3] = 0;
-         p += 4;
-      }
-   }
-   return 1;
-}
-
-static int stbi__expand_png_palette(stbi__png *a, stbi_uc *palette, int len, int pal_img_n)
-{
-   stbi__uint32 i, pixel_count = a->s->img_x * a->s->img_y;
-   stbi_uc *p, *temp_out, *orig = a->out;
-
-   p = (stbi_uc *) stbi__malloc(pixel_count * pal_img_n);
-   if (p == NULL) return stbi__err("outofmem", "Out of memory");
-
-   // between here and free(out) below, exitting would leak
-   temp_out = p;
-
-   if (pal_img_n == 3) {
-      for (i=0; i < pixel_count; ++i) {
-         int n = orig[i]*4;
-         p[0] = palette[n  ];
-         p[1] = palette[n+1];
-         p[2] = palette[n+2];
-         p += 3;
-      }
-   } else {
-      for (i=0; i < pixel_count; ++i) {
-         int n = orig[i]*4;
-         p[0] = palette[n  ];
-         p[1] = palette[n+1];
-         p[2] = palette[n+2];
-         p[3] = palette[n+3];
-         p += 4;
-      }
-   }
-   free(a->out);
-   a->out = temp_out;
-
-   STBI_NOTUSED(len);
-
-   return 1;
-}
-
-static int stbi__unpremultiply_on_load = 0;
-static int stbi__de_iphone_flag = 0;
-
-STBIDEF void stbi_set_unpremultiply_on_load(int flag_true_if_should_unpremultiply)
-{
-   stbi__unpremultiply_on_load = flag_true_if_should_unpremultiply;
-}
-
-STBIDEF void stbi_convert_iphone_png_to_rgb(int flag_true_if_should_convert)
-{
-   stbi__de_iphone_flag = flag_true_if_should_convert;
-}
-
-static void stbi__de_iphone(stbi__png *z)
-{
-   stbi__context *s = z->s;
-   stbi__uint32 i, pixel_count = s->img_x * s->img_y;
-   stbi_uc *p = z->out;
-
-   if (s->img_out_n == 3) {  // convert bgr to rgb
-      for (i=0; i < pixel_count; ++i) {
-         stbi_uc t = p[0];
-         p[0] = p[2];
-         p[2] = t;
-         p += 3;
-      }
-   } else {
-      STBI_ASSERT(s->img_out_n == 4);
-      if (stbi__unpremultiply_on_load) {
-         // convert bgr to rgb and unpremultiply
-         for (i=0; i < pixel_count; ++i) {
-            stbi_uc a = p[3];
-            stbi_uc t = p[0];
-            if (a) {
-               p[0] = p[2] * 255 / a;
-               p[1] = p[1] * 255 / a;
-               p[2] =  t   * 255 / a;
-            } else {
-               p[0] = p[2];
-               p[2] = t;
-            } 
-            p += 4;
-         }
-      } else {
-         // convert bgr to rgb
-         for (i=0; i < pixel_count; ++i) {
-            stbi_uc t = p[0];
-            p[0] = p[2];
-            p[2] = t;
-            p += 4;
-         }
-      }
-   }
-}
-
-static int stbi__parse_png_file(stbi__png *z, int scan, int req_comp)
-{
-   stbi_uc palette[1024], pal_img_n=0;
-   stbi_uc has_trans=0, tc[3];
-   stbi__uint32 ioff=0, idata_limit=0, i, pal_len=0;
-   int first=1,k,interlace=0, color=0, depth=0, is_iphone=0;
-   stbi__context *s = z->s;
-
-   z->expanded = NULL;
-   z->idata = NULL;
-   z->out = NULL;
-
-   if (!stbi__check_png_header(s)) return 0;
-
-   if (scan == SCAN_type) return 1;
-
-   for (;;) {
-      stbi__pngchunk c = stbi__get_chunk_header(s);
-      switch (c.type) {
-         case PNG_TYPE('C','g','B','I'):
-            is_iphone = 1;
-            stbi__skip(s, c.length);
-            break;
-         case PNG_TYPE('I','H','D','R'): {
-            int comp,filter;
-            if (!first) return stbi__err("multiple IHDR","Corrupt PNG");
-            first = 0;
-            if (c.length != 13) return stbi__err("bad IHDR len","Corrupt PNG");
-            s->img_x = stbi__get32be(s); if (s->img_x > (1 << 24)) return stbi__err("too large","Very large image (corrupt?)");
-            s->img_y = stbi__get32be(s); if (s->img_y > (1 << 24)) return stbi__err("too large","Very large image (corrupt?)");
-            depth = stbi__get8(s);  if (depth != 1 && depth != 2 && depth != 4 && depth != 8)  return stbi__err("1/2/4/8-bit only","PNG not supported: 1/2/4/8-bit only");
-            color = stbi__get8(s);  if (color > 6)         return stbi__err("bad ctype","Corrupt PNG");
-            if (color == 3) pal_img_n = 3; else if (color & 1) return stbi__err("bad ctype","Corrupt PNG");
-            comp  = stbi__get8(s);  if (comp) return stbi__err("bad comp method","Corrupt PNG");
-            filter= stbi__get8(s);  if (filter) return stbi__err("bad filter method","Corrupt PNG");
-            interlace = stbi__get8(s); if (interlace>1) return stbi__err("bad interlace method","Corrupt PNG");
-            if (!s->img_x || !s->img_y) return stbi__err("0-pixel image","Corrupt PNG");
-            if (!pal_img_n) {
-               s->img_n = (color & 2 ? 3 : 1) + (color & 4 ? 1 : 0);
-               if ((1 << 30) / s->img_x / s->img_n < s->img_y) return stbi__err("too large", "Image too large to decode");
-               if (scan == SCAN_header) return 1;
-            } else {
-               // if paletted, then pal_n is our final components, and
-               // img_n is # components to decompress/filter.
-               s->img_n = 1;
-               if ((1 << 30) / s->img_x / 4 < s->img_y) return stbi__err("too large","Corrupt PNG");
-               // if SCAN_header, have to scan to see if we have a tRNS
-            }
-            break;
-         }
-
-         case PNG_TYPE('P','L','T','E'):  {
-            if (first) return stbi__err("first not IHDR", "Corrupt PNG");
-            if (c.length > 256*3) return stbi__err("invalid PLTE","Corrupt PNG");
-            pal_len = c.length / 3;
-            if (pal_len * 3 != c.length) return stbi__err("invalid PLTE","Corrupt PNG");
-            for (i=0; i < pal_len; ++i) {
-               palette[i*4+0] = stbi__get8(s);
-               palette[i*4+1] = stbi__get8(s);
-               palette[i*4+2] = stbi__get8(s);
-               palette[i*4+3] = 255;
-            }
-            break;
-         }
-
-         case PNG_TYPE('t','R','N','S'): {
-            if (first) return stbi__err("first not IHDR", "Corrupt PNG");
-            if (z->idata) return stbi__err("tRNS after IDAT","Corrupt PNG");
-            if (pal_img_n) {
-               if (scan == SCAN_header) { s->img_n = 4; return 1; }
-               if (pal_len == 0) return stbi__err("tRNS before PLTE","Corrupt PNG");
-               if (c.length > pal_len) return stbi__err("bad tRNS len","Corrupt PNG");
-               pal_img_n = 4;
-               for (i=0; i < c.length; ++i)
-                  palette[i*4+3] = stbi__get8(s);
-            } else {
-               if (!(s->img_n & 1)) return stbi__err("tRNS with alpha","Corrupt PNG");
-               if (c.length != (stbi__uint32) s->img_n*2) return stbi__err("bad tRNS len","Corrupt PNG");
-               has_trans = 1;
-               for (k=0; k < s->img_n; ++k)
-                  tc[k] = (stbi_uc) (stbi__get16be(s) & 255); // non 8-bit images will be larger
-            }
-            break;
-         }
-
-         case PNG_TYPE('I','D','A','T'): {
-            if (first) return stbi__err("first not IHDR", "Corrupt PNG");
-            if (pal_img_n && !pal_len) return stbi__err("no PLTE","Corrupt PNG");
-            if (scan == SCAN_header) { s->img_n = pal_img_n; return 1; }
-            if (ioff + c.length > idata_limit) {
-               stbi_uc *p;
-               if (idata_limit == 0) idata_limit = c.length > 4096 ? c.length : 4096;
-               while (ioff + c.length > idata_limit)
-                  idata_limit *= 2;
-               p = (stbi_uc *) realloc(z->idata, idata_limit); if (p == NULL) return stbi__err("outofmem", "Out of memory");
-               z->idata = p;
-            }
-            if (!stbi__getn(s, z->idata+ioff,c.length)) return stbi__err("outofdata","Corrupt PNG");
-            ioff += c.length;
-            break;
-         }
-
-         case PNG_TYPE('I','E','N','D'): {
-            stbi__uint32 raw_len;
-            if (first) return stbi__err("first not IHDR", "Corrupt PNG");
-            if (scan != SCAN_load) return 1;
-            if (z->idata == NULL) return stbi__err("no IDAT","Corrupt PNG");
-            z->expanded = (stbi_uc *) stbi_zlib_decode_malloc_guesssize_headerflag((char *) z->idata, ioff, 16384, (int *) &raw_len, !is_iphone);
-            if (z->expanded == NULL) return 0; // zlib should set error
-            free(z->idata); z->idata = NULL;
-            if ((req_comp == s->img_n+1 && req_comp != 3 && !pal_img_n) || has_trans)
-               s->img_out_n = s->img_n+1;
-            else
-               s->img_out_n = s->img_n;
-            if (!stbi__create_png_image(z, z->expanded, raw_len, s->img_out_n, depth, color, interlace)) return 0;
-            if (has_trans)
-               if (!stbi__compute_transparency(z, tc, s->img_out_n)) return 0;
-            if (is_iphone && stbi__de_iphone_flag && s->img_out_n > 2)
-               stbi__de_iphone(z);
-            if (pal_img_n) {
-               // pal_img_n == 3 or 4
-               s->img_n = pal_img_n; // record the actual colors we had
-               s->img_out_n = pal_img_n;
-               if (req_comp >= 3) s->img_out_n = req_comp;
-               if (!stbi__expand_png_palette(z, palette, pal_len, s->img_out_n))
-                  return 0;
-            }
-            free(z->expanded); z->expanded = NULL;
-            return 1;
-         }
-
-         default:
-            // if critical, fail
-            if (first) return stbi__err("first not IHDR", "Corrupt PNG");
-            if ((c.type & (1 << 29)) == 0) {
-               #ifndef STBI_NO_FAILURE_STRINGS
-               // not threadsafe
-               static char invalid_chunk[] = "XXXX PNG chunk not known";
-               invalid_chunk[0] = STBI__BYTECAST(c.type >> 24);
-               invalid_chunk[1] = STBI__BYTECAST(c.type >> 16);
-               invalid_chunk[2] = STBI__BYTECAST(c.type >>  8);
-               invalid_chunk[3] = STBI__BYTECAST(c.type >>  0);
-               #endif
-               return stbi__err(invalid_chunk, "PNG not supported: unknown PNG chunk type");
-            }
-            stbi__skip(s, c.length);
-            break;
-      }
-      // end of PNG chunk, read and skip CRC
-      stbi__get32be(s);
-   }
-}
-
-static unsigned char *stbi__do_png(stbi__png *p, int *x, int *y, int *n, int req_comp)
-{
-   unsigned char *result=NULL;
-   if (req_comp < 0 || req_comp > 4) return stbi__errpuc("bad req_comp", "Internal error");
-   if (stbi__parse_png_file(p, SCAN_load, req_comp)) {
-      result = p->out;
-      p->out = NULL;
-      if (req_comp && req_comp != p->s->img_out_n) {
-         result = stbi__convert_format(result, p->s->img_out_n, req_comp, p->s->img_x, p->s->img_y);
-         p->s->img_out_n = req_comp;
-         if (result == NULL) return result;
-      }
-      *x = p->s->img_x;
-      *y = p->s->img_y;
-      if (n) *n = p->s->img_out_n;
-   }
-   free(p->out);      p->out      = NULL;
-   free(p->expanded); p->expanded = NULL;
-   free(p->idata);    p->idata    = NULL;
-
-   return result;
-}
-
-static unsigned char *stbi__png_load(stbi__context *s, int *x, int *y, int *comp, int req_comp)
-{
-   stbi__png p;
-   p.s = s;
-   return stbi__do_png(&p, x,y,comp,req_comp);
-}
-
-static int stbi__png_test(stbi__context *s)
-{
-   int r;
-   r = stbi__check_png_header(s);
-   stbi__rewind(s);
-   return r;
-}
-
-static int stbi__png_info_raw(stbi__png *p, int *x, int *y, int *comp)
-{
-   if (!stbi__parse_png_file(p, SCAN_header, 0)) {
-      stbi__rewind( p->s );
-      return 0;
-   }
-   if (x) *x = p->s->img_x;
-   if (y) *y = p->s->img_y;
-   if (comp) *comp = p->s->img_n;
-   return 1;
-}
-
-static int stbi__png_info(stbi__context *s, int *x, int *y, int *comp)
-{
-   stbi__png p;
-   p.s = s;
-   return stbi__png_info_raw(&p, x, y, comp);
-}
-
-// Microsoft/Windows BMP image
-static int stbi__bmp_test_raw(stbi__context *s)
-{
-   int r;
-   int sz;
-   if (stbi__get8(s) != 'B') return 0;
-   if (stbi__get8(s) != 'M') return 0;
-   stbi__get32le(s); // discard filesize
-   stbi__get16le(s); // discard reserved
-   stbi__get16le(s); // discard reserved
-   stbi__get32le(s); // discard data offset
-   sz = stbi__get32le(s);
-   r = (sz == 12 || sz == 40 || sz == 56 || sz == 108 || sz == 124);
-   return r;
-}
-
-static int stbi__bmp_test(stbi__context *s)
-{
-   int r = stbi__bmp_test_raw(s);
-   stbi__rewind(s);
-   return r;
-}
-
-
-// returns 0..31 for the highest set bit
-static int stbi__high_bit(unsigned int z)
-{
-   int n=0;
-   if (z == 0) return -1;
-   if (z >= 0x10000) n += 16, z >>= 16;
-   if (z >= 0x00100) n +=  8, z >>=  8;
-   if (z >= 0x00010) n +=  4, z >>=  4;
-   if (z >= 0x00004) n +=  2, z >>=  2;
-   if (z >= 0x00002) n +=  1, z >>=  1;
-   return n;
-}
-
-static int stbi__bitcount(unsigned int a)
-{
-   a = (a & 0x55555555) + ((a >>  1) & 0x55555555); // max 2
-   a = (a & 0x33333333) + ((a >>  2) & 0x33333333); // max 4
-   a = (a + (a >> 4)) & 0x0f0f0f0f; // max 8 per 4, now 8 bits
-   a = (a + (a >> 8)); // max 16 per 8 bits
-   a = (a + (a >> 16)); // max 32 per 8 bits
-   return a & 0xff;
-}
-
-static int stbi__shiftsigned(int v, int shift, int bits)
-{
-   int result;
-   int z=0;
-
-   if (shift < 0) v <<= -shift;
-   else v >>= shift;
-   result = v;
-
-   z = bits;
-   while (z < 8) {
-      result += v >> z;
-      z += bits;
-   }
-   return result;
-}
-
-static stbi_uc *stbi__bmp_load(stbi__context *s, int *x, int *y, int *comp, int req_comp)
-{
-   stbi_uc *out;
-   unsigned int mr=0,mg=0,mb=0,ma=0, fake_a=0;
-   stbi_uc pal[256][4];
-   int psize=0,i,j,compress=0,width;
-   int bpp, flip_vertically, pad, target, offset, hsz;
-   if (stbi__get8(s) != 'B' || stbi__get8(s) != 'M') return stbi__errpuc("not BMP", "Corrupt BMP");
-   stbi__get32le(s); // discard filesize
-   stbi__get16le(s); // discard reserved
-   stbi__get16le(s); // discard reserved
-   offset = stbi__get32le(s);
-   hsz = stbi__get32le(s);
-   if (hsz != 12 && hsz != 40 && hsz != 56 && hsz != 108 && hsz != 124) return stbi__errpuc("unknown BMP", "BMP type not supported: unknown");
-   if (hsz == 12) {
-      s->img_x = stbi__get16le(s);
-      s->img_y = stbi__get16le(s);
-   } else {
-      s->img_x = stbi__get32le(s);
-      s->img_y = stbi__get32le(s);
-   }
-   if (stbi__get16le(s) != 1) return stbi__errpuc("bad BMP", "bad BMP");
-   bpp = stbi__get16le(s);
-   if (bpp == 1) return stbi__errpuc("monochrome", "BMP type not supported: 1-bit");
-   flip_vertically = ((int) s->img_y) > 0;
-   s->img_y = abs((int) s->img_y);
-   if (hsz == 12) {
-      if (bpp < 24)
-         psize = (offset - 14 - 24) / 3;
-   } else {
-      compress = stbi__get32le(s);
-      if (compress == 1 || compress == 2) return stbi__errpuc("BMP RLE", "BMP type not supported: RLE");
-      stbi__get32le(s); // discard sizeof
-      stbi__get32le(s); // discard hres
-      stbi__get32le(s); // discard vres
-      stbi__get32le(s); // discard colorsused
-      stbi__get32le(s); // discard max important
-      if (hsz == 40 || hsz == 56) {
-         if (hsz == 56) {
-            stbi__get32le(s);
-            stbi__get32le(s);
-            stbi__get32le(s);
-            stbi__get32le(s);
-         }
-         if (bpp == 16 || bpp == 32) {
-            mr = mg = mb = 0;
-            if (compress == 0) {
-               if (bpp == 32) {
-                  mr = 0xffu << 16;
-                  mg = 0xffu <<  8;
-                  mb = 0xffu <<  0;
-                  ma = 0xffu << 24;
-                  fake_a = 1; // @TODO: check for cases like alpha value is all 0 and switch it to 255
-                  STBI_NOTUSED(fake_a);
-               } else {
-                  mr = 31u << 10;
-                  mg = 31u <<  5;
-                  mb = 31u <<  0;
-               }
-            } else if (compress == 3) {
-               mr = stbi__get32le(s);
-               mg = stbi__get32le(s);
-               mb = stbi__get32le(s);
-               // not documented, but generated by photoshop and handled by mspaint
-               if (mr == mg && mg == mb) {
-                  // ?!?!?
-                  return stbi__errpuc("bad BMP", "bad BMP");
-               }
-            } else
-               return stbi__errpuc("bad BMP", "bad BMP");
-         }
-      } else {
-         STBI_ASSERT(hsz == 108 || hsz == 124);
-         mr = stbi__get32le(s);
-         mg = stbi__get32le(s);
-         mb = stbi__get32le(s);
-         ma = stbi__get32le(s);
-         stbi__get32le(s); // discard color space
-         for (i=0; i < 12; ++i)
-            stbi__get32le(s); // discard color space parameters
-         if (hsz == 124) {
-            stbi__get32le(s); // discard rendering intent
-            stbi__get32le(s); // discard offset of profile data
-            stbi__get32le(s); // discard size of profile data
-            stbi__get32le(s); // discard reserved
-         }
-      }
-      if (bpp < 16)
-         psize = (offset - 14 - hsz) >> 2;
-   }
-   s->img_n = ma ? 4 : 3;
-   if (req_comp && req_comp >= 3) // we can directly decode 3 or 4
-      target = req_comp;
-   else
-      target = s->img_n; // if they want monochrome, we'll post-convert
-   out = (stbi_uc *) stbi__malloc(target * s->img_x * s->img_y);
-   if (!out) return stbi__errpuc("outofmem", "Out of memory");
-   if (bpp < 16) {
-      int z=0;
-      if (psize == 0 || psize > 256) { free(out); return stbi__errpuc("invalid", "Corrupt BMP"); }
-      for (i=0; i < psize; ++i) {
-         pal[i][2] = stbi__get8(s);
-         pal[i][1] = stbi__get8(s);
-         pal[i][0] = stbi__get8(s);
-         if (hsz != 12) stbi__get8(s);
-         pal[i][3] = 255;
-      }
-      stbi__skip(s, offset - 14 - hsz - psize * (hsz == 12 ? 3 : 4));
-      if (bpp == 4) width = (s->img_x + 1) >> 1;
-      else if (bpp == 8) width = s->img_x;
-      else { free(out); return stbi__errpuc("bad bpp", "Corrupt BMP"); }
-      pad = (-width)&3;
-      for (j=0; j < (int) s->img_y; ++j) {
-         for (i=0; i < (int) s->img_x; i += 2) {
-            int v=stbi__get8(s),v2=0;
-            if (bpp == 4) {
-               v2 = v & 15;
-               v >>= 4;
-            }
-            out[z++] = pal[v][0];
-            out[z++] = pal[v][1];
-            out[z++] = pal[v][2];
-            if (target == 4) out[z++] = 255;
-            if (i+1 == (int) s->img_x) break;
-            v = (bpp == 8) ? stbi__get8(s) : v2;
-            out[z++] = pal[v][0];
-            out[z++] = pal[v][1];
-            out[z++] = pal[v][2];
-            if (target == 4) out[z++] = 255;
-         }
-         stbi__skip(s, pad);
-      }
-   } else {
-      int rshift=0,gshift=0,bshift=0,ashift=0,rcount=0,gcount=0,bcount=0,acount=0;
-      int z = 0;
-      int easy=0;
-      stbi__skip(s, offset - 14 - hsz);
-      if (bpp == 24) width = 3 * s->img_x;
-      else if (bpp == 16) width = 2*s->img_x;
-      else /* bpp = 32 and pad = 0 */ width=0;
-      pad = (-width) & 3;
-      if (bpp == 24) {
-         easy = 1;
-      } else if (bpp == 32) {
-         if (mb == 0xff && mg == 0xff00 && mr == 0x00ff0000 && ma == 0xff000000)
-            easy = 2;
-      }
-      if (!easy) {
-         if (!mr || !mg || !mb) { free(out); return stbi__errpuc("bad masks", "Corrupt BMP"); }
-         // right shift amt to put high bit in position #7
-         rshift = stbi__high_bit(mr)-7; rcount = stbi__bitcount(mr);
-         gshift = stbi__high_bit(mg)-7; gcount = stbi__bitcount(mg);
-         bshift = stbi__high_bit(mb)-7; bcount = stbi__bitcount(mb);
-         ashift = stbi__high_bit(ma)-7; acount = stbi__bitcount(ma);
-      }
-      for (j=0; j < (int) s->img_y; ++j) {
-         if (easy) {
-            for (i=0; i < (int) s->img_x; ++i) {
-               unsigned char a;
-               out[z+2] = stbi__get8(s);
-               out[z+1] = stbi__get8(s);
-               out[z+0] = stbi__get8(s);
-               z += 3;
-               a = (easy == 2 ? stbi__get8(s) : 255);
-               if (target == 4) out[z++] = a;
-            }
-         } else {
-            for (i=0; i < (int) s->img_x; ++i) {
-               stbi__uint32 v = (stbi__uint32) (bpp == 16 ? stbi__get16le(s) : stbi__get32le(s));
-               int a;
-               out[z++] = STBI__BYTECAST(stbi__shiftsigned(v & mr, rshift, rcount));
-               out[z++] = STBI__BYTECAST(stbi__shiftsigned(v & mg, gshift, gcount));
-               out[z++] = STBI__BYTECAST(stbi__shiftsigned(v & mb, bshift, bcount));
-               a = (ma ? stbi__shiftsigned(v & ma, ashift, acount) : 255);
-               if (target == 4) out[z++] = STBI__BYTECAST(a); 
-            }
-         }
-         stbi__skip(s, pad);
-      }
-   }
-   if (flip_vertically) {
-      stbi_uc t;
-      for (j=0; j < (int) s->img_y>>1; ++j) {
-         stbi_uc *p1 = out +      j     *s->img_x*target;
-         stbi_uc *p2 = out + (s->img_y-1-j)*s->img_x*target;
-         for (i=0; i < (int) s->img_x*target; ++i) {
-            t = p1[i], p1[i] = p2[i], p2[i] = t;
-         }
-      }
-   }
-
-   if (req_comp && req_comp != target) {
-      out = stbi__convert_format(out, target, req_comp, s->img_x, s->img_y);
-      if (out == NULL) return out; // stbi__convert_format frees input on failure
-   }
-
-   *x = s->img_x;
-   *y = s->img_y;
-   if (comp) *comp = s->img_n;
-   return out;
-}
-
-// Targa Truevision - TGA
-// by Jonathan Dummer
-
-static int stbi__tga_info(stbi__context *s, int *x, int *y, int *comp)
-{
-    int tga_w, tga_h, tga_comp;
-    int sz;
-    stbi__get8(s);                   // discard Offset
-    sz = stbi__get8(s);              // color type
-    if( sz > 1 ) {
-        stbi__rewind(s);
-        return 0;      // only RGB or indexed allowed
-    }
-    sz = stbi__get8(s);              // image type
-    // only RGB or grey allowed, +/- RLE
-    if ((sz != 1) && (sz != 2) && (sz != 3) && (sz != 9) && (sz != 10) && (sz != 11)) return 0;
-    stbi__skip(s,9);
-    tga_w = stbi__get16le(s);
-    if( tga_w < 1 ) {
-        stbi__rewind(s);
-        return 0;   // test width
-    }
-    tga_h = stbi__get16le(s);
-    if( tga_h < 1 ) {
-        stbi__rewind(s);
-        return 0;   // test height
-    }
-    sz = stbi__get8(s);               // bits per pixel
-    // only RGB or RGBA or grey allowed
-    if ((sz != 8) && (sz != 16) && (sz != 24) && (sz != 32)) {
-        stbi__rewind(s);
-        return 0;
-    }
-    tga_comp = sz;
-    if (x) *x = tga_w;
-    if (y) *y = tga_h;
-    if (comp) *comp = tga_comp / 8;
-    return 1;                   // seems to have passed everything
-}
-
-static int stbi__tga_test(stbi__context *s)
-{
-   int res;
-   int sz;
-   stbi__get8(s);      //   discard Offset
-   sz = stbi__get8(s);   //   color type
-   if ( sz > 1 ) return 0;   //   only RGB or indexed allowed
-   sz = stbi__get8(s);   //   image type
-   if ( (sz != 1) && (sz != 2) && (sz != 3) && (sz != 9) && (sz != 10) && (sz != 11) ) return 0;   //   only RGB or grey allowed, +/- RLE
-   stbi__get16be(s);      //   discard palette start
-   stbi__get16be(s);      //   discard palette length
-   stbi__get8(s);         //   discard bits per palette color entry
-   stbi__get16be(s);      //   discard x origin
-   stbi__get16be(s);      //   discard y origin
-   if ( stbi__get16be(s) < 1 ) return 0;      //   test width
-   if ( stbi__get16be(s) < 1 ) return 0;      //   test height
-   sz = stbi__get8(s);   //   bits per pixel
-   if ( (sz != 8) && (sz != 16) && (sz != 24) && (sz != 32) )
-      res = 0;
-   else
-      res = 1;
-   stbi__rewind(s);
-   return res;
-}
-
-static stbi_uc *stbi__tga_load(stbi__context *s, int *x, int *y, int *comp, int req_comp)
-{
-   //   read in the TGA header stuff
-   int tga_offset = stbi__get8(s);
-   int tga_indexed = stbi__get8(s);
-   int tga_image_type = stbi__get8(s);
-   int tga_is_RLE = 0;
-   int tga_palette_start = stbi__get16le(s);
-   int tga_palette_len = stbi__get16le(s);
-   int tga_palette_bits = stbi__get8(s);
-   int tga_x_origin = stbi__get16le(s);
-   int tga_y_origin = stbi__get16le(s);
-   int tga_width = stbi__get16le(s);
-   int tga_height = stbi__get16le(s);
-   int tga_bits_per_pixel = stbi__get8(s);
-   int tga_comp = tga_bits_per_pixel / 8;
-   int tga_inverted = stbi__get8(s);
-   //   image data
-   unsigned char *tga_data;
-   unsigned char *tga_palette = NULL;
-   int i, j;
-   unsigned char raw_data[4];
-   int RLE_count = 0;
-   int RLE_repeating = 0;
-   int read_next_pixel = 1;
-
-   //   do a tiny bit of precessing
-   if ( tga_image_type >= 8 )
-   {
-      tga_image_type -= 8;
-      tga_is_RLE = 1;
-   }
-   /* int tga_alpha_bits = tga_inverted & 15; */
-   tga_inverted = 1 - ((tga_inverted >> 5) & 1);
-
-   //   error check
-   if ( //(tga_indexed) ||
-      (tga_width < 1) || (tga_height < 1) ||
-      (tga_image_type < 1) || (tga_image_type > 3) ||
-      ((tga_bits_per_pixel != 8) && (tga_bits_per_pixel != 16) &&
-      (tga_bits_per_pixel != 24) && (tga_bits_per_pixel != 32))
-      )
-   {
-      return NULL; // we don't report this as a bad TGA because we don't even know if it's TGA
-   }
-
-   //   If I'm paletted, then I'll use the number of bits from the palette
-   if ( tga_indexed )
-   {
-      tga_comp = tga_palette_bits / 8;
-   }
-
-   //   tga info
-   *x = tga_width;
-   *y = tga_height;
-   if (comp) *comp = tga_comp;
-
-   tga_data = (unsigned char*)stbi__malloc( tga_width * tga_height * tga_comp );
-   if (!tga_data) return stbi__errpuc("outofmem", "Out of memory");
-
-   // skip to the data's starting position (offset usually = 0)
-   stbi__skip(s, tga_offset );
-
-   if ( !tga_indexed && !tga_is_RLE) {
-      for (i=0; i < tga_height; ++i) {
-         int y = tga_inverted ? tga_height -i - 1 : i;
-         stbi_uc *tga_row = tga_data + y*tga_width*tga_comp;
-         stbi__getn(s, tga_row, tga_width * tga_comp);
-      }
-   } else  {
-      //   do I need to load a palette?
-      if ( tga_indexed)
-      {
-         //   any data to skip? (offset usually = 0)
-         stbi__skip(s, tga_palette_start );
-         //   load the palette
-         tga_palette = (unsigned char*)stbi__malloc( tga_palette_len * tga_palette_bits / 8 );
-         if (!tga_palette) {
-            free(tga_data);
-            return stbi__errpuc("outofmem", "Out of memory");
-         }
-         if (!stbi__getn(s, tga_palette, tga_palette_len * tga_palette_bits / 8 )) {
-            free(tga_data);
-            free(tga_palette);
-            return stbi__errpuc("bad palette", "Corrupt TGA");
-         }
-      }
-      //   load the data
-      for (i=0; i < tga_width * tga_height; ++i)
-      {
-         //   if I'm in RLE mode, do I need to get a RLE stbi__pngchunk?
-         if ( tga_is_RLE )
-         {
-            if ( RLE_count == 0 )
-            {
-               //   yep, get the next byte as a RLE command
-               int RLE_cmd = stbi__get8(s);
-               RLE_count = 1 + (RLE_cmd & 127);
-               RLE_repeating = RLE_cmd >> 7;
-               read_next_pixel = 1;
-            } else if ( !RLE_repeating )
-            {
-               read_next_pixel = 1;
-            }
-         } else
-         {
-            read_next_pixel = 1;
-         }
-         //   OK, if I need to read a pixel, do it now
-         if ( read_next_pixel )
-         {
-            //   load however much data we did have
-            if ( tga_indexed )
-            {
-               //   read in 1 byte, then perform the lookup
-               int pal_idx = stbi__get8(s);
-               if ( pal_idx >= tga_palette_len )
-               {
-                  //   invalid index
-                  pal_idx = 0;
-               }
-               pal_idx *= tga_bits_per_pixel / 8;
-               for (j = 0; j*8 < tga_bits_per_pixel; ++j)
-               {
-                  raw_data[j] = tga_palette[pal_idx+j];
-               }
-            } else
-            {
-               //   read in the data raw
-               for (j = 0; j*8 < tga_bits_per_pixel; ++j)
-               {
-                  raw_data[j] = stbi__get8(s);
-               }
-            }
-            //   clear the reading flag for the next pixel
-            read_next_pixel = 0;
-         } // end of reading a pixel
-
-         // copy data
-         for (j = 0; j < tga_comp; ++j)
-           tga_data[i*tga_comp+j] = raw_data[j];
-
-         //   in case we're in RLE mode, keep counting down
-         --RLE_count;
-      }
-      //   do I need to invert the image?
-      if ( tga_inverted )
-      {
-         for (j = 0; j*2 < tga_height; ++j)
-         {
-            int index1 = j * tga_width * tga_comp;
-            int index2 = (tga_height - 1 - j) * tga_width * tga_comp;
-            for (i = tga_width * tga_comp; i > 0; --i)
-            {
-               unsigned char temp = tga_data[index1];
-               tga_data[index1] = tga_data[index2];
-               tga_data[index2] = temp;
-               ++index1;
-               ++index2;
-            }
-         }
-      }
-      //   clear my palette, if I had one
-      if ( tga_palette != NULL )
-      {
-         free( tga_palette );
-      }
-   }
-
-   // swap RGB
-   if (tga_comp >= 3)
-   {
-      unsigned char* tga_pixel = tga_data;
-      for (i=0; i < tga_width * tga_height; ++i)
-      {
-         unsigned char temp = tga_pixel[0];
-         tga_pixel[0] = tga_pixel[2];
-         tga_pixel[2] = temp;
-         tga_pixel += tga_comp;
-      }
-   }
-
-   // convert to target component count
-   if (req_comp && req_comp != tga_comp)
-      tga_data = stbi__convert_format(tga_data, tga_comp, req_comp, tga_width, tga_height);
-
-   //   the things I do to get rid of an error message, and yet keep
-   //   Microsoft's C compilers happy... [8^(
-   tga_palette_start = tga_palette_len = tga_palette_bits =
-         tga_x_origin = tga_y_origin = 0;
-   //   OK, done
-   return tga_data;
-}
-
-// *************************************************************************************************
-// Photoshop PSD loader -- PD by Thatcher Ulrich, integration by Nicolas Schulz, tweaked by STB
-
-static int stbi__psd_test(stbi__context *s)
-{
-   int r = (stbi__get32be(s) == 0x38425053);
-   stbi__rewind(s);
-   return r;
-}
-
-static stbi_uc *stbi__psd_load(stbi__context *s, int *x, int *y, int *comp, int req_comp)
-{
-   int   pixelCount;
-   int channelCount, compression;
-   int channel, i, count, len;
-   int w,h;
-   stbi_uc *out;
-
-   // Check identifier
-   if (stbi__get32be(s) != 0x38425053)   // "8BPS"
-      return stbi__errpuc("not PSD", "Corrupt PSD image");
-
-   // Check file type version.
-   if (stbi__get16be(s) != 1)
-      return stbi__errpuc("wrong version", "Unsupported version of PSD image");
-
-   // Skip 6 reserved bytes.
-   stbi__skip(s, 6 );
-
-   // Read the number of channels (R, G, B, A, etc).
-   channelCount = stbi__get16be(s);
-   if (channelCount < 0 || channelCount > 16)
-      return stbi__errpuc("wrong channel count", "Unsupported number of channels in PSD image");
-
-   // Read the rows and columns of the image.
-   h = stbi__get32be(s);
-   w = stbi__get32be(s);
-   
-   // Make sure the depth is 8 bits.
-   if (stbi__get16be(s) != 8)
-      return stbi__errpuc("unsupported bit depth", "PSD bit depth is not 8 bit");
-
-   // Make sure the color mode is RGB.
-   // Valid options are:
-   //   0: Bitmap
-   //   1: Grayscale
-   //   2: Indexed color
-   //   3: RGB color
-   //   4: CMYK color
-   //   7: Multichannel
-   //   8: Duotone
-   //   9: Lab color
-   if (stbi__get16be(s) != 3)
-      return stbi__errpuc("wrong color format", "PSD is not in RGB color format");
-
-   // Skip the Mode Data.  (It's the palette for indexed color; other info for other modes.)
-   stbi__skip(s,stbi__get32be(s) );
-
-   // Skip the image resources.  (resolution, pen tool paths, etc)
-   stbi__skip(s, stbi__get32be(s) );
-
-   // Skip the reserved data.
-   stbi__skip(s, stbi__get32be(s) );
-
-   // Find out if the data is compressed.
-   // Known values:
-   //   0: no compression
-   //   1: RLE compressed
-   compression = stbi__get16be(s);
-   if (compression > 1)
-      return stbi__errpuc("bad compression", "PSD has an unknown compression format");
-
-   // Create the destination image.
-   out = (stbi_uc *) stbi__malloc(4 * w*h);
-   if (!out) return stbi__errpuc("outofmem", "Out of memory");
-   pixelCount = w*h;
-
-   // Initialize the data to zero.
-   //memset( out, 0, pixelCount * 4 );
-   
-   // Finally, the image data.
-   if (compression) {
-      // RLE as used by .PSD and .TIFF
-      // Loop until you get the number of unpacked bytes you are expecting:
-      //     Read the next source byte into n.
-      //     If n is between 0 and 127 inclusive, copy the next n+1 bytes literally.
-      //     Else if n is between -127 and -1 inclusive, copy the next byte -n+1 times.
-      //     Else if n is 128, noop.
-      // Endloop
-
-      // The RLE-compressed data is preceeded by a 2-byte data count for each row in the data,
-      // which we're going to just skip.
-      stbi__skip(s, h * channelCount * 2 );
-
-      // Read the RLE data by channel.
-      for (channel = 0; channel < 4; channel++) {
-         stbi_uc *p;
-         
-         p = out+channel;
-         if (channel >= channelCount) {
-            // Fill this channel with default data.
-            for (i = 0; i < pixelCount; i++) *p = (channel == 3 ? 255 : 0), p += 4;
-         } else {
-            // Read the RLE data.
-            count = 0;
-            while (count < pixelCount) {
-               len = stbi__get8(s);
-               if (len == 128) {
-                  // No-op.
-               } else if (len < 128) {
-                  // Copy next len+1 bytes literally.
-                  len++;
-                  count += len;
-                  while (len) {
-                     *p = stbi__get8(s);
-                     p += 4;
-                     len--;
-                  }
-               } else if (len > 128) {
-                  stbi_uc   val;
-                  // Next -len+1 bytes in the dest are replicated from next source byte.
-                  // (Interpret len as a negative 8-bit int.)
-                  len ^= 0x0FF;
-                  len += 2;
-                  val = stbi__get8(s);
-                  count += len;
-                  while (len) {
-                     *p = val;
-                     p += 4;
-                     len--;
-                  }
-               }
-            }
-         }
-      }
-      
-   } else {
-      // We're at the raw image data.  It's each channel in order (Red, Green, Blue, Alpha, ...)
-      // where each channel consists of an 8-bit value for each pixel in the image.
-      
-      // Read the data by channel.
-      for (channel = 0; channel < 4; channel++) {
-         stbi_uc *p;
-         
-         p = out + channel;
-         if (channel > channelCount) {
-            // Fill this channel with default data.
-            for (i = 0; i < pixelCount; i++) *p = channel == 3 ? 255 : 0, p += 4;
-         } else {
-            // Read the data.
-            for (i = 0; i < pixelCount; i++)
-               *p = stbi__get8(s), p += 4;
-         }
-      }
-   }
-
-   if (req_comp && req_comp != 4) {
-      out = stbi__convert_format(out, 4, req_comp, w, h);
-      if (out == NULL) return out; // stbi__convert_format frees input on failure
-   }
-
-   if (comp) *comp = channelCount;
-   *y = h;
-   *x = w;
-   
-   return out;
-}
-
-// *************************************************************************************************
-// Softimage PIC loader
-// by Tom Seddon
-//
-// See http://softimage.wiki.softimage.com/index.php/INFO:_PIC_file_format
-// See http://ozviz.wasp.uwa.edu.au/~pbourke/dataformats/softimagepic/
-
-static int stbi__pic_is4(stbi__context *s,const char *str)
-{
-   int i;
-   for (i=0; i<4; ++i)
-      if (stbi__get8(s) != (stbi_uc)str[i])
-         return 0;
-
-   return 1;
-}
-
-static int stbi__pic_test_core(stbi__context *s)
-{
-   int i;
-
-   if (!stbi__pic_is4(s,"\x53\x80\xF6\x34"))
-      return 0;
-
-   for(i=0;i<84;++i)
-      stbi__get8(s);
-
-   if (!stbi__pic_is4(s,"PICT"))
-      return 0;
-
-   return 1;
-}
-
-typedef struct
-{
-   stbi_uc size,type,channel;
-} stbi__pic_packet;
-
-static stbi_uc *stbi__readval(stbi__context *s, int channel, stbi_uc *dest)
-{
-   int mask=0x80, i;
-
-   for (i=0; i<4; ++i, mask>>=1) {
-      if (channel & mask) {
-         if (stbi__at_eof(s)) return stbi__errpuc("bad file","PIC file too short");
-         dest[i]=stbi__get8(s);
-      }
-   }
-
-   return dest;
-}
-
-static void stbi__copyval(int channel,stbi_uc *dest,const stbi_uc *src)
-{
-   int mask=0x80,i;
-
-   for (i=0;i<4; ++i, mask>>=1)
-      if (channel&mask)
-         dest[i]=src[i];
-}
-
-static stbi_uc *stbi__pic_load_core(stbi__context *s,int width,int height,int *comp, stbi_uc *result)
-{
-   int act_comp=0,num_packets=0,y,chained;
-   stbi__pic_packet packets[10];
-
-   // this will (should...) cater for even some bizarre stuff like having data
-    // for the same channel in multiple packets.
-   do {
-      stbi__pic_packet *packet;
-
-      if (num_packets==sizeof(packets)/sizeof(packets[0]))
-         return stbi__errpuc("bad format","too many packets");
-
-      packet = &packets[num_packets++];
-
-      chained = stbi__get8(s);
-      packet->size    = stbi__get8(s);
-      packet->type    = stbi__get8(s);
-      packet->channel = stbi__get8(s);
-
-      act_comp |= packet->channel;
-
-      if (stbi__at_eof(s))          return stbi__errpuc("bad file","file too short (reading packets)");
-      if (packet->size != 8)  return stbi__errpuc("bad format","packet isn't 8bpp");
-   } while (chained);
-
-   *comp = (act_comp & 0x10 ? 4 : 3); // has alpha channel?
-
-   for(y=0; y<height; ++y) {
-      int packet_idx;
-
-      for(packet_idx=0; packet_idx < num_packets; ++packet_idx) {
-         stbi__pic_packet *packet = &packets[packet_idx];
-         stbi_uc *dest = result+y*width*4;
-
-         switch (packet->type) {
-            default:
-               return stbi__errpuc("bad format","packet has bad compression type");
-
-            case 0: {//uncompressed
-               int x;
-
-               for(x=0;x<width;++x, dest+=4)
-                  if (!stbi__readval(s,packet->channel,dest))
-                     return 0;
-               break;
-            }
-
-            case 1://Pure RLE
-               {
-                  int left=width, i;
-
-                  while (left>0) {
-                     stbi_uc count,value[4];
-
-                     count=stbi__get8(s);
-                     if (stbi__at_eof(s))   return stbi__errpuc("bad file","file too short (pure read count)");
-
-                     if (count > left)
-                        count = (stbi_uc) left;
-
-                     if (!stbi__readval(s,packet->channel,value))  return 0;
-
-                     for(i=0; i<count; ++i,dest+=4)
-                        stbi__copyval(packet->channel,dest,value);
-                     left -= count;
-                  }
-               }
-               break;
-
-            case 2: {//Mixed RLE
-               int left=width;
-               while (left>0) {
-                  int count = stbi__get8(s), i;
-                  if (stbi__at_eof(s))  return stbi__errpuc("bad file","file too short (mixed read count)");
-
-                  if (count >= 128) { // Repeated
-                     stbi_uc value[4];
-                     int i;
-
-                     if (count==128)
-                        count = stbi__get16be(s);
-                     else
-                        count -= 127;
-                     if (count > left)
-                        return stbi__errpuc("bad file","scanline overrun");
-
-                     if (!stbi__readval(s,packet->channel,value))
-                        return 0;
-
-                     for(i=0;i<count;++i, dest += 4)
-                        stbi__copyval(packet->channel,dest,value);
-                  } else { // Raw
-                     ++count;
-                     if (count>left) return stbi__errpuc("bad file","scanline overrun");
-
-                     for(i=0;i<count;++i, dest+=4)
-                        if (!stbi__readval(s,packet->channel,dest))
-                           return 0;
-                  }
-                  left-=count;
-               }
-               break;
-            }
-         }
-      }
-   }
-
-   return result;
-}
-
-static stbi_uc *stbi__pic_load(stbi__context *s,int *px,int *py,int *comp,int req_comp)
-{
-   stbi_uc *result;
-   int i, x,y;
-
-   for (i=0; i<92; ++i)
-      stbi__get8(s);
-
-   x = stbi__get16be(s);
-   y = stbi__get16be(s);
-   if (stbi__at_eof(s))  return stbi__errpuc("bad file","file too short (pic header)");
-   if ((1 << 28) / x < y) return stbi__errpuc("too large", "Image too large to decode");
-
-   stbi__get32be(s); //skip `ratio'
-   stbi__get16be(s); //skip `fields'
-   stbi__get16be(s); //skip `pad'
-
-   // intermediate buffer is RGBA
-   result = (stbi_uc *) stbi__malloc(x*y*4);
-   memset(result, 0xff, x*y*4);
-
-   if (!stbi__pic_load_core(s,x,y,comp, result)) {
-      free(result);
-      result=0;
-   }
-   *px = x;
-   *py = y;
-   if (req_comp == 0) req_comp = *comp;
-   result=stbi__convert_format(result,4,req_comp,x,y);
-
-   return result;
-}
-
-static int stbi__pic_test(stbi__context *s)
-{
-   int r = stbi__pic_test_core(s);
-   stbi__rewind(s);
-   return r;
-}
-
-// *************************************************************************************************
-// GIF loader -- public domain by Jean-Marc Lienher -- simplified/shrunk by stb
-typedef struct 
-{
-   stbi__int16 prefix;
-   stbi_uc first;
-   stbi_uc suffix;
-} stbi__gif_lzw;
-
-typedef struct
-{
-   int w,h;
-   stbi_uc *out;                 // output buffer (always 4 components)
-   int flags, bgindex, ratio, transparent, eflags;
-   stbi_uc  pal[256][4];
-   stbi_uc lpal[256][4];
-   stbi__gif_lzw codes[4096];
-   stbi_uc *color_table;
-   int parse, step;
-   int lflags;
-   int start_x, start_y;
-   int max_x, max_y;
-   int cur_x, cur_y;
-   int line_size;
-} stbi__gif;
-
-static int stbi__gif_test_raw(stbi__context *s)
-{
-   int sz;
-   if (stbi__get8(s) != 'G' || stbi__get8(s) != 'I' || stbi__get8(s) != 'F' || stbi__get8(s) != '8') return 0;
-   sz = stbi__get8(s);
-   if (sz != '9' && sz != '7') return 0;
-   if (stbi__get8(s) != 'a') return 0;
-   return 1;
-}
-
-static int stbi__gif_test(stbi__context *s)
-{
-   int r = stbi__gif_test_raw(s);
-   stbi__rewind(s);
-   return r;
-}
-
-static void stbi__gif_parse_colortable(stbi__context *s, stbi_uc pal[256][4], int num_entries, int transp)
-{
-   int i;
-   for (i=0; i < num_entries; ++i) {
-      pal[i][2] = stbi__get8(s);
-      pal[i][1] = stbi__get8(s);
-      pal[i][0] = stbi__get8(s);
-      pal[i][3] = transp ? 0 : 255;
-   }   
-}
-
-static int stbi__gif_header(stbi__context *s, stbi__gif *g, int *comp, int is_info)
-{
-   stbi_uc version;
-   if (stbi__get8(s) != 'G' || stbi__get8(s) != 'I' || stbi__get8(s) != 'F' || stbi__get8(s) != '8')
-      return stbi__err("not GIF", "Corrupt GIF");
-
-   version = stbi__get8(s);
-   if (version != '7' && version != '9')    return stbi__err("not GIF", "Corrupt GIF");
-   if (stbi__get8(s) != 'a')                      return stbi__err("not GIF", "Corrupt GIF");
- 
-   stbi__g_failure_reason = "";
-   g->w = stbi__get16le(s);
-   g->h = stbi__get16le(s);
-   g->flags = stbi__get8(s);
-   g->bgindex = stbi__get8(s);
-   g->ratio = stbi__get8(s);
-   g->transparent = -1;
-
-   if (comp != 0) *comp = 4;  // can't actually tell whether it's 3 or 4 until we parse the comments
-
-   if (is_info) return 1;
-
-   if (g->flags & 0x80)
-      stbi__gif_parse_colortable(s,g->pal, 2 << (g->flags & 7), -1);
-
-   return 1;
-}
-
-static int stbi__gif_info_raw(stbi__context *s, int *x, int *y, int *comp)
-{
-   stbi__gif g;   
-   if (!stbi__gif_header(s, &g, comp, 1)) {
-      stbi__rewind( s );
-      return 0;
-   }
-   if (x) *x = g.w;
-   if (y) *y = g.h;
-   return 1;
-}
-
-static void stbi__out_gif_code(stbi__gif *g, stbi__uint16 code)
-{
-   stbi_uc *p, *c;
-
-   // recurse to decode the prefixes, since the linked-list is backwards,
-   // and working backwards through an interleaved image would be nasty
-   if (g->codes[code].prefix >= 0)
-      stbi__out_gif_code(g, g->codes[code].prefix);
-
-   if (g->cur_y >= g->max_y) return;
-  
-   p = &g->out[g->cur_x + g->cur_y];
-   c = &g->color_table[g->codes[code].suffix * 4];
-
-   if (c[3] >= 128) {
-      p[0] = c[2];
-      p[1] = c[1];
-      p[2] = c[0];
-      p[3] = c[3];
-   }
-   g->cur_x += 4;
-
-   if (g->cur_x >= g->max_x) {
-      g->cur_x = g->start_x;
-      g->cur_y += g->step;
-
-      while (g->cur_y >= g->max_y && g->parse > 0) {
-         g->step = (1 << g->parse) * g->line_size;
-         g->cur_y = g->start_y + (g->step >> 1);
-         --g->parse;
-      }
-   }
-}
-
-static stbi_uc *stbi__process_gif_raster(stbi__context *s, stbi__gif *g)
-{
-   stbi_uc lzw_cs;
-   stbi__int32 len, code;
-   stbi__uint32 first;
-   stbi__int32 codesize, codemask, avail, oldcode, bits, valid_bits, clear;
-   stbi__gif_lzw *p;
-
-   lzw_cs = stbi__get8(s);
-   clear = 1 << lzw_cs;
-   first = 1;
-   codesize = lzw_cs + 1;
-   codemask = (1 << codesize) - 1;
-   bits = 0;
-   valid_bits = 0;
-   for (code = 0; code < clear; code++) {
-      g->codes[code].prefix = -1;
-      g->codes[code].first = (stbi_uc) code;
-      g->codes[code].suffix = (stbi_uc) code;
-   }
-
-   // support no starting clear code
-   avail = clear+2;
-   oldcode = -1;
-
-   len = 0;
-   for(;;) {
-      if (valid_bits < codesize) {
-         if (len == 0) {
-            len = stbi__get8(s); // start new block
-            if (len == 0) 
-               return g->out;
-         }
-         --len;
-         bits |= (stbi__int32) stbi__get8(s) << valid_bits;
-         valid_bits += 8;
-      } else {
-         stbi__int32 code = bits & codemask;
-         bits >>= codesize;
-         valid_bits -= codesize;
-         // @OPTIMIZE: is there some way we can accelerate the non-clear path?
-         if (code == clear) {  // clear code
-            codesize = lzw_cs + 1;
-            codemask = (1 << codesize) - 1;
-            avail = clear + 2;
-            oldcode = -1;
-            first = 0;
-         } else if (code == clear + 1) { // end of stream code
-            stbi__skip(s, len);
-            while ((len = stbi__get8(s)) > 0)
-               stbi__skip(s,len);
-            return g->out;
-         } else if (code <= avail) {
-            if (first) return stbi__errpuc("no clear code", "Corrupt GIF");
-
-            if (oldcode >= 0) {
-               p = &g->codes[avail++];
-               if (avail > 4096)        return stbi__errpuc("too many codes", "Corrupt GIF");
-               p->prefix = (stbi__int16) oldcode;
-               p->first = g->codes[oldcode].first;
-               p->suffix = (code == avail) ? p->first : g->codes[code].first;
-            } else if (code == avail)
-               return stbi__errpuc("illegal code in raster", "Corrupt GIF");
-
-            stbi__out_gif_code(g, (stbi__uint16) code);
-
-            if ((avail & codemask) == 0 && avail <= 0x0FFF) {
-               codesize++;
-               codemask = (1 << codesize) - 1;
-            }
-
-            oldcode = code;
-         } else {
-            return stbi__errpuc("illegal code in raster", "Corrupt GIF");
-         }
-      } 
-   }
-}
-
-static void stbi__fill_gif_background(stbi__gif *g)
-{
-   int i;
-   stbi_uc *c = g->pal[g->bgindex];
-   // @OPTIMIZE: write a dword at a time
-   for (i = 0; i < g->w * g->h * 4; i += 4) {
-      stbi_uc *p  = &g->out[i];
-      p[0] = c[2];
-      p[1] = c[1];
-      p[2] = c[0];
-      p[3] = c[3];
-   }
-}
-
-// this function is designed to support animated gifs, although stb_image doesn't support it
-static stbi_uc *stbi__gif_load_next(stbi__context *s, stbi__gif *g, int *comp, int req_comp)
-{
-   int i;
-   stbi_uc *old_out = 0;
-
-   if (g->out == 0) {
-      if (!stbi__gif_header(s, g, comp,0))     return 0; // stbi__g_failure_reason set by stbi__gif_header
-      g->out = (stbi_uc *) stbi__malloc(4 * g->w * g->h);
-      if (g->out == 0)                      return stbi__errpuc("outofmem", "Out of memory");
-      stbi__fill_gif_background(g);
-   } else {
-      // animated-gif-only path
-      if (((g->eflags & 0x1C) >> 2) == 3) {
-         old_out = g->out;
-         g->out = (stbi_uc *) stbi__malloc(4 * g->w * g->h);
-         if (g->out == 0)                   return stbi__errpuc("outofmem", "Out of memory");
-         memcpy(g->out, old_out, g->w*g->h*4);
-      }
-   }
-    
-   for (;;) {
-      switch (stbi__get8(s)) {
-         case 0x2C: /* Image Descriptor */
-         {
-            stbi__int32 x, y, w, h;
-            stbi_uc *o;
-
-            x = stbi__get16le(s);
-            y = stbi__get16le(s);
-            w = stbi__get16le(s);
-            h = stbi__get16le(s);
-            if (((x + w) > (g->w)) || ((y + h) > (g->h)))
-               return stbi__errpuc("bad Image Descriptor", "Corrupt GIF");
-
-            g->line_size = g->w * 4;
-            g->start_x = x * 4;
-            g->start_y = y * g->line_size;
-            g->max_x   = g->start_x + w * 4;
-            g->max_y   = g->start_y + h * g->line_size;
-            g->cur_x   = g->start_x;
-            g->cur_y   = g->start_y;
-
-            g->lflags = stbi__get8(s);
-
-            if (g->lflags & 0x40) {
-               g->step = 8 * g->line_size; // first interlaced spacing
-               g->parse = 3;
-            } else {
-               g->step = g->line_size;
-               g->parse = 0;
-            }
-
-            if (g->lflags & 0x80) {
-               stbi__gif_parse_colortable(s,g->lpal, 2 << (g->lflags & 7), g->eflags & 0x01 ? g->transparent : -1);
-               g->color_table = (stbi_uc *) g->lpal;       
-            } else if (g->flags & 0x80) {
-               for (i=0; i < 256; ++i)  // @OPTIMIZE: stbi__jpeg_reset only the previous transparent
-                  g->pal[i][3] = 255; 
-               if (g->transparent >= 0 && (g->eflags & 0x01))
-                  g->pal[g->transparent][3] = 0;
-               g->color_table = (stbi_uc *) g->pal;
-            } else
-               return stbi__errpuc("missing color table", "Corrupt GIF");
-   
-            o = stbi__process_gif_raster(s, g);
-            if (o == NULL) return NULL;
-
-            if (req_comp && req_comp != 4)
-               o = stbi__convert_format(o, 4, req_comp, g->w, g->h);
-            return o;
-         }
-
-         case 0x21: // Comment Extension.
-         {
-            int len;
-            if (stbi__get8(s) == 0xF9) { // Graphic Control Extension.
-               len = stbi__get8(s);
-               if (len == 4) {
-                  g->eflags = stbi__get8(s);
-                  stbi__get16le(s); // delay
-                  g->transparent = stbi__get8(s);
-               } else {
-                  stbi__skip(s, len);
-                  break;
-               }
-            }
-            while ((len = stbi__get8(s)) != 0)
-               stbi__skip(s, len);
-            break;
-         }
-
-         case 0x3B: // gif stream termination code
-            return (stbi_uc *) s; // using '1' causes warning on some compilers
-
-         default:
-            return stbi__errpuc("unknown code", "Corrupt GIF");
-      }
-   }
-}
-
-static stbi_uc *stbi__gif_load(stbi__context *s, int *x, int *y, int *comp, int req_comp)
-{
-   stbi_uc *u = 0;
-   stbi__gif g;
-   memset(&g, 0, sizeof(g));
-
-   u = stbi__gif_load_next(s, &g, comp, req_comp);
-   if (u == (stbi_uc *) s) u = 0;  // end of animated gif marker
-   if (u) {
-      *x = g.w;
-      *y = g.h;
-   }
-
-   return u;
-}
-
-static int stbi__gif_info(stbi__context *s, int *x, int *y, int *comp)
-{
-   return stbi__gif_info_raw(s,x,y,comp);
-}
-
-
-// *************************************************************************************************
-// Radiance RGBE HDR loader
-// originally by Nicolas Schulz
-#ifndef STBI_NO_HDR
-static int stbi__hdr_test_core(stbi__context *s)
-{
-   const char *signature = "#?RADIANCE\n";
-   int i;
-   for (i=0; signature[i]; ++i)
-      if (stbi__get8(s) != signature[i])
-         return 0;
-   return 1;
-}
-
-static int stbi__hdr_test(stbi__context* s)
-{
-   int r = stbi__hdr_test_core(s);
-   stbi__rewind(s);
-   return r;
-}
-
-#define STBI__HDR_BUFLEN  1024
-static char *stbi__hdr_gettoken(stbi__context *z, char *buffer)
-{
-   int len=0;
-   char c = '\0';
-
-   c = (char) stbi__get8(z);
-
-   while (!stbi__at_eof(z) && c != '\n') {
-      buffer[len++] = c;
-      if (len == STBI__HDR_BUFLEN-1) {
-         // flush to end of line
-         while (!stbi__at_eof(z) && stbi__get8(z) != '\n')
-            ;
-         break;
-      }
-      c = (char) stbi__get8(z);
-   }
-
-   buffer[len] = 0;
-   return buffer;
-}
-
-static void stbi__hdr_convert(float *output, stbi_uc *input, int req_comp)
-{
-   if ( input[3] != 0 ) {
-      float f1;
-      // Exponent
-      f1 = (float) ldexp(1.0f, input[3] - (int)(128 + 8));
-      if (req_comp <= 2)
-         output[0] = (input[0] + input[1] + input[2]) * f1 / 3;
-      else {
-         output[0] = input[0] * f1;
-         output[1] = input[1] * f1;
-         output[2] = input[2] * f1;
-      }
-      if (req_comp == 2) output[1] = 1;
-      if (req_comp == 4) output[3] = 1;
-   } else {
-      switch (req_comp) {
-         case 4: output[3] = 1; /* fallthrough */
-         case 3: output[0] = output[1] = output[2] = 0;
-                 break;
-         case 2: output[1] = 1; /* fallthrough */
-         case 1: output[0] = 0;
-                 break;
-      }
-   }
-}
-
-static float *stbi__hdr_load(stbi__context *s, int *x, int *y, int *comp, int req_comp)
-{
-   char buffer[STBI__HDR_BUFLEN];
-   char *token;
-   int valid = 0;
-   int width, height;
-   stbi_uc *scanline;
-   float *hdr_data;
-   int len;
-   unsigned char count, value;
-   int i, j, k, c1,c2, z;
-
-
-   // Check identifier
-   if (strcmp(stbi__hdr_gettoken(s,buffer), "#?RADIANCE") != 0)
-      return stbi__errpf("not HDR", "Corrupt HDR image");
-   
-   // Parse header
-   for(;;) {
-      token = stbi__hdr_gettoken(s,buffer);
-      if (token[0] == 0) break;
-      if (strcmp(token, "FORMAT=32-bit_rle_rgbe") == 0) valid = 1;
-   }
-
-   if (!valid)    return stbi__errpf("unsupported format", "Unsupported HDR format");
-
-   // Parse width and height
-   // can't use sscanf() if we're not using stdio!
-   token = stbi__hdr_gettoken(s,buffer);
-   if (strncmp(token, "-Y ", 3))  return stbi__errpf("unsupported data layout", "Unsupported HDR format");
-   token += 3;
-   height = (int) strtol(token, &token, 10);
-   while (*token == ' ') ++token;
-   if (strncmp(token, "+X ", 3))  return stbi__errpf("unsupported data layout", "Unsupported HDR format");
-   token += 3;
-   width = (int) strtol(token, NULL, 10);
-
-   *x = width;
-   *y = height;
-
-   if (comp) *comp = 3;
-   if (req_comp == 0) req_comp = 3;
-
-   // Read data
-   hdr_data = (float *) stbi__malloc(height * width * req_comp * sizeof(float));
-
-   // Load image data
-   // image data is stored as some number of sca
-   if ( width < 8 || width >= 32768) {
-      // Read flat data
-      for (j=0; j < height; ++j) {
-         for (i=0; i < width; ++i) {
-            stbi_uc rgbe[4];
-           main_decode_loop:
-            stbi__getn(s, rgbe, 4);
-            stbi__hdr_convert(hdr_data + j * width * req_comp + i * req_comp, rgbe, req_comp);
-         }
-      }
-   } else {
-      // Read RLE-encoded data
-      scanline = NULL;
-
-      for (j = 0; j < height; ++j) {
-         c1 = stbi__get8(s);
-         c2 = stbi__get8(s);
-         len = stbi__get8(s);
-         if (c1 != 2 || c2 != 2 || (len & 0x80)) {
-            // not run-length encoded, so we have to actually use THIS data as a decoded
-            // pixel (note this can't be a valid pixel--one of RGB must be >= 128)
-            stbi_uc rgbe[4];
-            rgbe[0] = (stbi_uc) c1;
-            rgbe[1] = (stbi_uc) c2;
-            rgbe[2] = (stbi_uc) len;
-            rgbe[3] = (stbi_uc) stbi__get8(s);
-            stbi__hdr_convert(hdr_data, rgbe, req_comp);
-            i = 1;
-            j = 0;
-            free(scanline);
-            goto main_decode_loop; // yes, this makes no sense
-         }
-         len <<= 8;
-         len |= stbi__get8(s);
-         if (len != width) { free(hdr_data); free(scanline); return stbi__errpf("invalid decoded scanline length", "corrupt HDR"); }
-         if (scanline == NULL) scanline = (stbi_uc *) stbi__malloc(width * 4);
-            
-         for (k = 0; k < 4; ++k) {
-            i = 0;
-            while (i < width) {
-               count = stbi__get8(s);
-               if (count > 128) {
-                  // Run
-                  value = stbi__get8(s);
-                  count -= 128;
-                  for (z = 0; z < count; ++z)
-                     scanline[i++ * 4 + k] = value;
-               } else {
-                  // Dump
-                  for (z = 0; z < count; ++z)
-                     scanline[i++ * 4 + k] = stbi__get8(s);
-               }
-            }
-         }
-         for (i=0; i < width; ++i)
-            stbi__hdr_convert(hdr_data+(j*width + i)*req_comp, scanline + i*4, req_comp);
-      }
-      free(scanline);
-   }
-
-   return hdr_data;
-}
-
-static int stbi__hdr_info(stbi__context *s, int *x, int *y, int *comp)
-{
-   char buffer[STBI__HDR_BUFLEN];
-   char *token;
-   int valid = 0;
-
-   if (strcmp(stbi__hdr_gettoken(s,buffer), "#?RADIANCE") != 0) {
-       stbi__rewind( s );
-       return 0;
-   }
-
-   for(;;) {
-      token = stbi__hdr_gettoken(s,buffer);
-      if (token[0] == 0) break;
-      if (strcmp(token, "FORMAT=32-bit_rle_rgbe") == 0) valid = 1;
-   }
-
-   if (!valid) {
-       stbi__rewind( s );
-       return 0;
-   }
-   token = stbi__hdr_gettoken(s,buffer);
-   if (strncmp(token, "-Y ", 3)) {
-       stbi__rewind( s );
-       return 0;
-   }
-   token += 3;
-   *y = (int) strtol(token, &token, 10);
-   while (*token == ' ') ++token;
-   if (strncmp(token, "+X ", 3)) {
-       stbi__rewind( s );
-       return 0;
-   }
-   token += 3;
-   *x = (int) strtol(token, NULL, 10);
-   *comp = 3;
-   return 1;
-}
-#endif // STBI_NO_HDR
-
-static int stbi__bmp_info(stbi__context *s, int *x, int *y, int *comp)
-{
-   int hsz;
-   if (stbi__get8(s) != 'B' || stbi__get8(s) != 'M') {
-       stbi__rewind( s );
-       return 0;
-   }
-   stbi__skip(s,12);
-   hsz = stbi__get32le(s);
-   if (hsz != 12 && hsz != 40 && hsz != 56 && hsz != 108 && hsz != 124) {
-       stbi__rewind( s );
-       return 0;
-   }
-   if (hsz == 12) {
-      *x = stbi__get16le(s);
-      *y = stbi__get16le(s);
-   } else {
-      *x = stbi__get32le(s);
-      *y = stbi__get32le(s);
-   }
-   if (stbi__get16le(s) != 1) {
-       stbi__rewind( s );
-       return 0;
-   }
-   *comp = stbi__get16le(s) / 8;
-   return 1;
-}
-
-static int stbi__psd_info(stbi__context *s, int *x, int *y, int *comp)
-{
-   int channelCount;
-   if (stbi__get32be(s) != 0x38425053) {
-       stbi__rewind( s );
-       return 0;
-   }
-   if (stbi__get16be(s) != 1) {
-       stbi__rewind( s );
-       return 0;
-   }
-   stbi__skip(s, 6);
-   channelCount = stbi__get16be(s);
-   if (channelCount < 0 || channelCount > 16) {
-       stbi__rewind( s );
-       return 0;
-   }
-   *y = stbi__get32be(s);
-   *x = stbi__get32be(s);
-   if (stbi__get16be(s) != 8) {
-       stbi__rewind( s );
-       return 0;
-   }
-   if (stbi__get16be(s) != 3) {
-       stbi__rewind( s );
-       return 0;
-   }
-   *comp = 4;
-   return 1;
-}
-
-static int stbi__pic_info(stbi__context *s, int *x, int *y, int *comp)
-{
-   int act_comp=0,num_packets=0,chained;
-   stbi__pic_packet packets[10];
-
-   stbi__skip(s, 92);
-
-   *x = stbi__get16be(s);
-   *y = stbi__get16be(s);
-   if (stbi__at_eof(s))  return 0;
-   if ( (*x) != 0 && (1 << 28) / (*x) < (*y)) {
-       stbi__rewind( s );
-       return 0;
-   }
-
-   stbi__skip(s, 8);
-
-   do {
-      stbi__pic_packet *packet;
-
-      if (num_packets==sizeof(packets)/sizeof(packets[0]))
-         return 0;
-
-      packet = &packets[num_packets++];
-      chained = stbi__get8(s);
-      packet->size    = stbi__get8(s);
-      packet->type    = stbi__get8(s);
-      packet->channel = stbi__get8(s);
-      act_comp |= packet->channel;
-
-      if (stbi__at_eof(s)) {
-          stbi__rewind( s );
-          return 0;
-      }
-      if (packet->size != 8) {
-          stbi__rewind( s );
-          return 0;
-      }
-   } while (chained);
-
-   *comp = (act_comp & 0x10 ? 4 : 3);
-
-   return 1;
-}
-
-static int stbi__info_main(stbi__context *s, int *x, int *y, int *comp)
-{
-   if (stbi__jpeg_info(s, x, y, comp))
-       return 1;
-   if (stbi__png_info(s, x, y, comp))
-       return 1;
-   if (stbi__gif_info(s, x, y, comp))
-       return 1;
-   if (stbi__bmp_info(s, x, y, comp))
-       return 1;
-   if (stbi__psd_info(s, x, y, comp))
-       return 1;
-   if (stbi__pic_info(s, x, y, comp))
-       return 1;
-   #ifndef STBI_NO_HDR
-   if (stbi__hdr_info(s, x, y, comp))
-       return 1;
-   #endif
-   // test tga last because it's a crappy test!
-   if (stbi__tga_info(s, x, y, comp))
-       return 1;
-   return stbi__err("unknown image type", "Image not of any known type, or corrupt");
-}
-
-#ifndef STBI_NO_STDIO
-STBIDEF int stbi_info(char const *filename, int *x, int *y, int *comp)
-{
-    FILE *f = stbi__fopen(filename, "rb");
-    int result;
-    if (!f) return stbi__err("can't fopen", "Unable to open file");
-    result = stbi_info_from_file(f, x, y, comp);
-    fclose(f);
-    return result;
-}
-
-STBIDEF int stbi_info_from_file(FILE *f, int *x, int *y, int *comp)
-{
-   int r;
-   stbi__context s;
-   long pos = ftell(f);
-   stbi__start_file(&s, f);
-   r = stbi__info_main(&s,x,y,comp);
-   fseek(f,pos,SEEK_SET);
-   return r;
-}
-#endif // !STBI_NO_STDIO
-
-STBIDEF int stbi_info_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp)
-{
-   stbi__context s;
-   stbi__start_mem(&s,buffer,len);
-   return stbi__info_main(&s,x,y,comp);
-}
-
-STBIDEF int stbi_info_from_callbacks(stbi_io_callbacks const *c, void *user, int *x, int *y, int *comp)
-{
-   stbi__context s;
-   stbi__start_callbacks(&s, (stbi_io_callbacks *) c, user);
-   return stbi__info_main(&s,x,y,comp);
-}
-
-#endif // STB_IMAGE_IMPLEMENTATION
-
-/*
-   revision history:
-      1.46 (2014-08-26)
-             fix broken tRNS chunk (colorkey-style transparency) in non-paletted PNG
-      1.45 (2014-08-16)
-             fix MSVC-ARM internal compiler error by wrapping malloc
-      1.44 (2014-08-07)
-               various warning fixes from Ronny Chevalier
-      1.43 (2014-07-15)
-             fix MSVC-only compiler problem in code changed in 1.42
-      1.42 (2014-07-09)
-             don't define _CRT_SECURE_NO_WARNINGS (affects user code)
-             fixes to stbi__cleanup_jpeg path
-             added STBI_ASSERT to avoid requiring assert.h
-      1.41 (2014-06-25)
-             fix search&replace from 1.36 that messed up comments/error messages
-      1.40 (2014-06-22)
-             fix gcc struct-initialization warning
-      1.39 (2014-06-15)
-             fix to TGA optimization when req_comp != number of components in TGA;
-             fix to GIF loading because BMP wasn't rewinding (whoops, no GIFs in my test suite)
-             add support for BMP version 5 (more ignored fields)
-      1.38 (2014-06-06)
-             suppress MSVC warnings on integer casts truncating values
-             fix accidental rename of 'skip' field of I/O
-      1.37 (2014-06-04)
-             remove duplicate typedef
-      1.36 (2014-06-03)
-             convert to header file single-file library
-             if de-iphone isn't set, load iphone images color-swapped instead of returning NULL
-      1.35 (2014-05-27)
-             various warnings
-             fix broken STBI_SIMD path
-             fix bug where stbi_load_from_file no longer left file pointer in correct place
-             fix broken non-easy path for 32-bit BMP (possibly never used)
-             TGA optimization by Arseny Kapoulkine
-      1.34 (unknown)
-             use STBI_NOTUSED in stbi__resample_row_generic(), fix one more leak in tga failure case
-      1.33 (2011-07-14)
-             make stbi_is_hdr work in STBI_NO_HDR (as specified), minor compiler-friendly improvements
-      1.32 (2011-07-13)
-             support for "info" function for all supported filetypes (SpartanJ)
-      1.31 (2011-06-20)
-             a few more leak fixes, bug in PNG handling (SpartanJ)
-      1.30 (2011-06-11)
-             added ability to load files via callbacks to accomidate custom input streams (Ben Wenger)
-             removed deprecated format-specific test/load functions
-             removed support for installable file formats (stbi_loader) -- would have been broken for IO callbacks anyway
-             error cases in bmp and tga give messages and don't leak (Raymond Barbiero, grisha)
-             fix inefficiency in decoding 32-bit BMP (David Woo)
-      1.29 (2010-08-16)
-             various warning fixes from Aurelien Pocheville 
-      1.28 (2010-08-01)
-             fix bug in GIF palette transparency (SpartanJ)
-      1.27 (2010-08-01)
-             cast-to-stbi_uc to fix warnings
-      1.26 (2010-07-24)
-             fix bug in file buffering for PNG reported by SpartanJ
-      1.25 (2010-07-17)
-             refix trans_data warning (Won Chun)
-      1.24 (2010-07-12)
-             perf improvements reading from files on platforms with lock-heavy fgetc()
-             minor perf improvements for jpeg
-             deprecated type-specific functions so we'll get feedback if they're needed
-             attempt to fix trans_data warning (Won Chun)
-      1.23   fixed bug in iPhone support
-      1.22 (2010-07-10)
-             removed image *writing* support
-             stbi_info support from Jetro Lauha
-             GIF support from Jean-Marc Lienher
-             iPhone PNG-extensions from James Brown
-             warning-fixes from Nicolas Schulz and Janez Zemva (i.stbi__err. Janez (U+017D)emva)
-      1.21   fix use of 'stbi_uc' in header (reported by jon blow)
-      1.20   added support for Softimage PIC, by Tom Seddon
-      1.19   bug in interlaced PNG corruption check (found by ryg)
-      1.18 2008-08-02
-             fix a threading bug (local mutable static)
-      1.17   support interlaced PNG
-      1.16   major bugfix - stbi__convert_format converted one too many pixels
-      1.15   initialize some fields for thread safety
-      1.14   fix threadsafe conversion bug
-             header-file-only version (#define STBI_HEADER_FILE_ONLY before including)
-      1.13   threadsafe
-      1.12   const qualifiers in the API
-      1.11   Support installable IDCT, colorspace conversion routines
-      1.10   Fixes for 64-bit (don't use "unsigned long")
-             optimized upsampling by Fabian "ryg" Giesen
-      1.09   Fix format-conversion for PSD code (bad global variables!)
-      1.08   Thatcher Ulrich's PSD code integrated by Nicolas Schulz
-      1.07   attempt to fix C++ warning/errors again
-      1.06   attempt to fix C++ warning/errors again
-      1.05   fix TGA loading to return correct *comp and use good luminance calc
-      1.04   default float alpha is 1, not 255; use 'void *' for stbi_image_free
-      1.03   bugfixes to STBI_NO_STDIO, STBI_NO_HDR
-      1.02   support for (subset of) HDR files, float interface for preferred access to them
-      1.01   fix bug: possible bug in handling right-side up bmps... not sure
-             fix bug: the stbi__bmp_load() and stbi__tga_load() functions didn't work at all
-      1.00   interface to zlib that skips zlib header
-      0.99   correct handling of alpha in palette
-      0.98   TGA loader by lonesock; dynamically add loaders (untested)
-      0.97   jpeg errors on too large a file; also catch another malloc failure
-      0.96   fix detection of invalid v value - particleman@mollyrocket forum
-      0.95   during header scan, seek to markers in case of padding
-      0.94   STBI_NO_STDIO to disable stdio usage; rename all #defines the same
-      0.93   handle jpegtran output; verbose errors
-      0.92   read 4,8,16,24,32-bit BMP files of several formats
-      0.91   output 24-bit Windows 3.0 BMP files
-      0.90   fix a few more warnings; bump version number to approach 1.0
-      0.61   bugfixes due to Marc LeBlanc, Christopher Lloyd
-      0.60   fix compiling as c++
-      0.59   fix warnings: merge Dave Moore's -Wall fixes
-      0.58   fix bug: zlib uncompressed mode len/nlen was wrong endian
-      0.57   fix bug: jpg last huffman symbol before marker was >9 bits but less than 16 available
-      0.56   fix bug: zlib uncompressed mode len vs. nlen
-      0.55   fix bug: restart_interval not initialized to 0
-      0.54   allow NULL for 'int *comp'
-      0.53   fix bug in png 3->4; speedup png decoding
-      0.52   png handles req_comp=3,4 directly; minor cleanup; jpeg comments
-      0.51   obey req_comp requests, 1-component jpegs return as 1-component,
-             on 'test' only check type, not whether we support this variant
-      0.50   first released version
-*/

imgui.cpp

@@ -1,4 +1,4 @@
-// ImGui library v1.20
+// ImGui library v1.30 wip
 // See ImGui::ShowTestWindow() for sample code.
 // Read 'Programmer guide' below for notes on how to setup ImGui in your codebase.
 // Get latest version at https://github.com/ocornut/imgui
@@ -251,7 +251,6 @@
  - optimization/render: use indexed rendering to reduce vertex data cost (for remote/networked imgui)
  - optimization/render: move clip-rect to vertex data? would allow merging all commands
  - optimization/render: merge command-lists with same clip-rect into one even if they aren't sequential? (as long as in-between clip rectangle don't overlap)?
- - optimization/render: font exported by bmfont is not tight fit on vertical axis, incur unneeded pixel-shading cost.
  - optimization: turn some the various stack vectors into statically-sized arrays
  - optimization: better clipping for multi-component widgets
  - optimization: specialize for height based clipping first (assume widgets never go up + height tests before width tests?)
@@ -281,6 +280,24 @@
 #pragma clang diagnostic ignored "-Wglobal-constructors"    // warning : declaration requires a global destructor           // similar to above, not sure what the exact difference it.
 #endif
 
+//-------------------------------------------------------------------------
+// STB libraries implementation
+//-------------------------------------------------------------------------
+
+#define STBRP_STATIC
+#define STB_RECT_PACK_IMPLEMENTATION
+#include "stb_rect_pack.h"
+
+#define STB_TRUETYPE_IMPLEMENTATION
+#define STBTT_malloc(x,u)  ((void)(u), ImGui::MemAlloc(x))
+#define STBTT_free(x,u)    ((void)(u), ImGui::MemFree(x))
+#include "stb_truetype.h"
+
+struct ImGuiTextEditState;
+#define STB_TEXTEDIT_STRING ImGuiTextEditState
+#define STB_TEXTEDIT_CHARTYPE ImWchar
+#include "stb_textedit.h"
+
 //-------------------------------------------------------------------------
 // Forward Declarations
 //-------------------------------------------------------------------------
@@ -787,11 +804,6 @@ struct ImGuiDrawContext
     }
 };
 
-struct ImGuiTextEditState;
-#define STB_TEXTEDIT_STRING ImGuiTextEditState
-#define STB_TEXTEDIT_CHARTYPE ImWchar
-#include "stb_textedit.h"
-
 // Internal state of the currently focused/edited text input box
 struct ImGuiTextEditState
 {
@@ -841,7 +853,7 @@ struct ImGuiState
     ImGuiIO                 IO;
     ImGuiStyle              Style;
     float                   FontSize;                           // == IO.FontGlobalScale * IO.Font->Scale * IO.Font->Info->FontSize. Vertical distance between two lines of text, aka == CalcTextSize(" ").y
-    ImVec2                  FontTexUvForWhite;                  // == IO.Font->FontTexUvForWhite (cached copy)
+    ImVec2                  FontTexUvWhitePixel;                // == IO.Font->TexUvForWhite (cached copy)
 
     float                   Time;
     int                     FrameCount;
@@ -1472,10 +1484,12 @@ void ImGui::NewFrame()
 {
     ImGuiState& g = GImGui;
 
-    // Check user inputs
+    // Check user data
     IM_ASSERT(g.IO.DeltaTime > 0.0f);
     IM_ASSERT(g.IO.DisplaySize.x >= 0.0f && g.IO.DisplaySize.y >= 0.0f);
     IM_ASSERT(g.IO.RenderDrawListsFn != NULL);  // Must be implemented
+    IM_ASSERT(g.IO.Font);                       // Font not created
+	IM_ASSERT(g.IO.Font->IsLoaded());           // Font not loaded
 
     if (!g.Initialized)
     {
@@ -1485,26 +1499,13 @@ void ImGui::NewFrame()
 
         IM_ASSERT(g.Settings.empty());
         LoadSettings();
-        if (!g.IO.Font)
-        {
-            // Default font
-            const void* fnt_data;
-            unsigned int fnt_size;
-            ImGui::GetDefaultFontData(&fnt_data, &fnt_size, NULL, NULL);
-            g.IO.Font = (ImFont*)ImGui::MemAlloc(sizeof(ImFont));
-            new(g.IO.Font) ImFont();
-            g.IO.Font->LoadFromMemory(fnt_data, fnt_size);
-            IM_ASSERT(g.IO.Font->IsLoaded());       // Font failed to load
-            g.IO.Font->DisplayOffset = ImVec2(0.0f, +1.0f);
-        }
         g.Initialized = true;
     }
 
-    IM_ASSERT(g.IO.Font && g.IO.Font->IsLoaded());  // Font not loaded
     IM_ASSERT(g.IO.Font->Scale > 0.0f);
-    g.FontSize = g.IO.FontGlobalScale * (float)g.IO.Font->Info->FontSize * g.IO.Font->Scale;
-    g.FontTexUvForWhite = g.IO.Font->TexUvForWhite;
-    g.IO.Font->FallbackGlyph = NULL; // Because subsequent FindGlyph may return the fallback itself.
+    g.FontSize = g.IO.FontGlobalScale * g.IO.Font->FontSize * g.IO.Font->Scale;
+    g.FontTexUvWhitePixel = g.IO.Font->TexUvWhitePixel;
+    g.IO.Font->FallbackGlyph = NULL;
     g.IO.Font->FallbackGlyph = g.IO.Font->FindGlyph(g.IO.Font->FallbackChar);
 
     g.Time += g.IO.DeltaTime;
@@ -5865,7 +5866,7 @@ void ImDrawList::AddVtx(const ImVec2& pos, ImU32 col)
 {
     vtx_write->pos = pos;
     vtx_write->col = col;
-    vtx_write->uv = GImGui.FontTexUvForWhite;
+    vtx_write->uv = GImGui.FontTexUvWhitePixel;
     vtx_write++;
 }
 
@@ -6099,121 +6100,295 @@ void ImDrawList::AddText(ImFont* font, float font_size, const ImVec2& pos, ImU32
 ImFont::ImFont()
 {
     Scale = 1.0f;
-    DisplayOffset = ImVec2(0.0f,0.0f);
-    TexUvForWhite = ImVec2(0.0f,0.0f);
+    DisplayOffset = ImVec2(0.5f, 0.5f);
     FallbackChar = (ImWchar)'?';
 
-    Data = NULL;
-    DataSize = 0;
-    DataOwned = false;
-    Info = NULL;
-    Common = NULL;
-    Glyphs = NULL;
-    GlyphsCount = 0;
-    Kerning = NULL;
-    KerningCount = 0;
-    FallbackGlyph = NULL;
+    TexPixels = NULL;
+    Clear();
+}
+
+ImFont::~ImFont()
+{
+    Clear();
 }
 
 void    ImFont::Clear()
 {
-    if (Data && DataOwned)
-        ImGui::MemFree(Data);
-    Data = NULL;
-    DataOwned = false;
-    Info = NULL;
-    Common = NULL;
-    Glyphs = NULL;
-    GlyphsCount = 0;
-    Filenames.clear();
+    if (TexPixels)
+        ImGui::MemFree(TexPixels);
+
+    DisplayOffset = ImVec2(0.5f, 0.5f);
+    FontSize = 0.0f;
+    Glyphs.clear();
     IndexLookup.clear();
     FallbackGlyph = NULL;
+    TexPixels = NULL;
+    TexWidth = TexHeight = 0;
+    TexExtraDataPos = ImVec2(0, 0);
+}
+
+// Retrieve list of range (2 int per range, values are inclusive)
+const ImWchar*   ImFont::GetGlyphRangesDefault()
+{
+    static const ImWchar ranges[] =
+    {
+        0x0020, 0x00FF, // Basic Latin + Latin Supplement
+        0,
+    };
+    return &ranges[0];
+}
+
+const ImWchar*  ImFont::GetGlyphRangesChinese()
+{
+    static const ImWchar ranges[] =
+    {
+        0x0020, 0x00FF, // Basic Latin + Latin Supplement
+        0x3040, 0x309F, // Hiragana, Katakana
+        0xFF00, 0xFFEF, // Half-width characters
+        0x4e00, 0x9FAF, // CJK Ideograms
+        0,
+    };
+    return &ranges[0];
+}
+
+const ImWchar*  ImFont::GetGlyphRangesJapanese()
+{
+    // Store the 1946 ideograms code points as successive offsets from the initial unicode codepoint 0x4E00. Each offset has an implicit +1.
+    // This encoding helps us reduce the source code size.
+    static const short offsets_from_0x4E00[] = 
+    {
+        -1,0,1,3,0,0,0,0,1,0,5,1,1,0,7,4,6,10,0,1,9,9,7,1,3,19,1,10,7,1,0,1,0,5,1,0,6,4,2,6,0,0,12,6,8,0,3,5,0,1,0,9,0,0,8,1,1,3,4,5,13,0,0,8,2,17,
+        4,3,1,1,9,6,0,0,0,2,1,3,2,22,1,9,11,1,13,1,3,12,0,5,9,2,0,6,12,5,3,12,4,1,2,16,1,1,4,6,5,3,0,6,13,15,5,12,8,14,0,0,6,15,3,6,0,18,8,1,6,14,1,
+        5,4,12,24,3,13,12,10,24,0,0,0,1,0,1,1,2,9,10,2,2,0,0,3,3,1,0,3,8,0,3,2,4,4,1,6,11,10,14,6,15,3,4,15,1,0,0,5,2,2,0,0,1,6,5,5,6,0,3,6,5,0,0,1,0,
+        11,2,2,8,4,7,0,10,0,1,2,17,19,3,0,2,5,0,6,2,4,4,6,1,1,11,2,0,3,1,2,1,2,10,7,6,3,16,0,8,24,0,0,3,1,1,3,0,1,6,0,0,0,2,0,1,5,15,0,1,0,0,2,11,19,
+        1,4,19,7,6,5,1,0,0,0,0,5,1,0,1,9,0,0,5,0,2,0,1,0,3,0,11,3,0,2,0,0,0,0,0,9,3,6,4,12,0,14,0,0,29,10,8,0,14,37,13,0,31,16,19,0,8,30,1,20,8,3,48,
+        21,1,0,12,0,10,44,34,42,54,11,18,82,0,2,1,2,12,1,0,6,2,17,2,12,7,0,7,17,4,2,6,24,23,8,23,39,2,16,23,1,0,5,1,2,15,14,5,6,2,11,0,8,6,2,2,2,14,
+        20,4,15,3,4,11,10,10,2,5,2,1,30,2,1,0,0,22,5,5,0,3,1,5,4,1,0,0,2,2,21,1,5,1,2,16,2,1,3,4,0,8,4,0,0,5,14,11,2,16,1,13,1,7,0,22,15,3,1,22,7,14,
+        22,19,11,24,18,46,10,20,64,45,3,2,0,4,5,0,1,4,25,1,0,0,2,10,0,0,0,1,0,1,2,0,0,9,1,2,0,0,0,2,5,2,1,1,5,5,8,1,1,1,5,1,4,9,1,3,0,1,0,1,1,2,0,0,
+        2,0,1,8,22,8,1,0,0,0,0,4,2,1,0,9,8,5,0,9,1,30,24,2,6,4,39,0,14,5,16,6,26,179,0,2,1,1,0,0,0,5,2,9,6,0,2,5,16,7,5,1,1,0,2,4,4,7,15,13,14,0,0,
+        3,0,1,0,0,0,2,1,6,4,5,1,4,9,0,3,1,8,0,0,10,5,0,43,0,2,6,8,4,0,2,0,0,9,6,0,9,3,1,6,20,14,6,1,4,0,7,2,3,0,2,0,5,0,3,1,0,3,9,7,0,3,4,0,4,9,1,6,0,
+        9,0,0,2,3,10,9,28,3,6,2,4,1,2,32,4,1,18,2,0,3,1,5,30,10,0,2,2,2,0,7,9,8,11,10,11,7,2,13,7,5,10,0,3,40,2,0,1,6,12,0,4,5,1,5,11,11,21,4,8,3,7,
+        8,8,33,5,23,0,0,19,8,8,2,3,0,6,1,1,1,5,1,27,4,2,5,0,3,5,6,3,1,0,3,1,12,5,3,3,2,0,7,7,2,1,0,4,0,1,1,2,0,10,10,6,2,5,9,7,5,15,15,21,6,11,5,20,
+        4,3,5,5,2,5,0,2,1,0,1,7,28,0,9,0,5,12,5,5,18,30,0,12,3,3,21,16,25,32,9,3,14,11,24,5,66,9,1,2,0,5,9,1,5,1,8,0,8,3,3,0,1,15,1,4,8,1,2,7,0,7,2,
+        8,3,7,5,3,7,10,2,1,0,0,2,25,0,6,4,0,10,0,4,2,4,1,12,5,38,4,0,4,1,10,5,9,4,0,14,4,2,5,18,20,21,1,3,0,5,0,7,0,3,7,1,3,1,1,8,1,0,0,0,3,2,5,2,11,
+        6,0,13,1,3,9,1,12,0,16,6,2,1,0,2,1,12,6,13,11,2,0,28,1,7,8,14,13,8,13,0,2,0,5,4,8,10,2,37,42,19,6,6,7,4,14,11,18,14,80,7,6,0,4,72,12,36,27,
+        7,7,0,14,17,19,164,27,0,5,10,7,3,13,6,14,0,2,2,5,3,0,6,13,0,0,10,29,0,4,0,3,13,0,3,1,6,51,1,5,28,2,0,8,0,20,2,4,0,25,2,10,13,10,0,16,4,0,1,0,
+        2,1,7,0,1,8,11,0,0,1,2,7,2,23,11,6,6,4,16,2,2,2,0,22,9,3,3,5,2,0,15,16,21,2,9,20,15,15,5,3,9,1,0,0,1,7,7,5,4,2,2,2,38,24,14,0,0,15,5,6,24,14,
+        5,5,11,0,21,12,0,3,8,4,11,1,8,0,11,27,7,2,4,9,21,59,0,1,39,3,60,62,3,0,12,11,0,3,30,11,0,13,88,4,15,5,28,13,1,4,48,17,17,4,28,32,46,0,16,0,
+        18,11,1,8,6,38,11,2,6,11,38,2,0,45,3,11,2,7,8,4,30,14,17,2,1,1,65,18,12,16,4,2,45,123,12,56,33,1,4,3,4,7,0,0,0,3,2,0,16,4,2,4,2,0,7,4,5,2,26,
+        2,25,6,11,6,1,16,2,6,17,77,15,3,35,0,1,0,5,1,0,38,16,6,3,12,3,3,3,0,9,3,1,3,5,2,9,0,18,0,25,1,3,32,1,72,46,6,2,7,1,3,14,17,0,28,1,40,13,0,20,
+        15,40,6,38,24,12,43,1,1,9,0,12,6,0,6,2,4,19,3,7,1,48,0,9,5,0,5,6,9,6,10,15,2,11,19,3,9,2,0,1,10,1,27,8,1,3,6,1,14,0,26,0,27,16,3,4,9,6,2,23,
+        9,10,5,25,2,1,6,1,1,48,15,9,15,14,3,4,26,60,29,13,37,21,1,6,4,0,2,11,22,23,16,16,2,2,1,3,0,5,1,6,4,0,0,4,0,0,8,3,0,2,5,0,7,1,7,3,13,2,4,10,
+        3,0,2,31,0,18,3,0,12,10,4,1,0,7,5,7,0,5,4,12,2,22,10,4,2,15,2,8,9,0,23,2,197,51,3,1,1,4,13,4,3,21,4,19,3,10,5,40,0,4,1,1,10,4,1,27,34,7,21,
+        2,17,2,9,6,4,2,3,0,4,2,7,8,2,5,1,15,21,3,4,4,2,2,17,22,1,5,22,4,26,7,0,32,1,11,42,15,4,1,2,5,0,19,3,1,8,6,0,10,1,9,2,13,30,8,2,24,17,19,1,4,
+        4,25,13,0,10,16,11,39,18,8,5,30,82,1,6,8,18,77,11,13,20,75,11,112,78,33,3,0,0,60,17,84,9,1,1,12,30,10,49,5,32,158,178,5,5,6,3,3,1,3,1,4,7,6,
+        19,31,21,0,2,9,5,6,27,4,9,8,1,76,18,12,1,4,0,3,3,6,3,12,2,8,30,16,2,25,1,5,5,4,3,0,6,10,2,3,1,0,5,1,19,3,0,8,1,5,2,6,0,0,0,19,1,2,0,5,1,2,5,
+        1,3,7,0,4,12,7,3,10,22,0,9,5,1,0,2,20,1,1,3,23,30,3,9,9,1,4,191,14,3,15,6,8,50,0,1,0,0,4,0,0,1,0,2,4,2,0,2,3,0,2,0,2,2,8,7,0,1,1,1,3,3,17,11,
+        91,1,9,3,2,13,4,24,15,41,3,13,3,1,20,4,125,29,30,1,0,4,12,2,21,4,5,5,19,11,0,13,11,86,2,18,0,7,1,8,8,2,2,22,1,2,6,5,2,0,1,2,8,0,2,0,5,2,1,0,
+        2,10,2,0,5,9,2,1,2,0,1,0,4,0,0,10,2,5,3,0,6,1,0,1,4,4,33,3,13,17,3,18,6,4,7,1,5,78,0,4,1,13,7,1,8,1,0,35,27,15,3,0,0,0,1,11,5,41,38,15,22,6,
+        14,14,2,1,11,6,20,63,5,8,27,7,11,2,2,40,58,23,50,54,56,293,8,8,1,5,1,14,0,1,12,37,89,8,8,8,2,10,6,0,0,0,4,5,2,1,0,1,1,2,7,0,3,3,0,4,6,0,3,2,
+        19,3,8,0,0,0,4,4,16,0,4,1,5,1,3,0,3,4,6,2,17,10,10,31,6,4,3,6,10,126,7,3,2,2,0,9,0,0,5,20,13,0,15,0,6,0,2,5,8,64,50,3,2,12,2,9,0,0,11,8,20,
+        109,2,18,23,0,0,9,61,3,0,28,41,77,27,19,17,81,5,2,14,5,83,57,252,14,154,263,14,20,8,13,6,57,39,38,
+    };
+    static int ranges_unpacked = false;
+    static ImWchar ranges[6 + 1 + IM_ARRAYSIZE(offsets_from_0x4E00)*2] =
+    {
+        0x0020, 0x00FF, // Basic Latin + Latin Supplement
+        0x3040, 0x309F, // Hiragana, Katakana
+        0xFF00, 0xFFEF, // Half-width characters
+        0, 
+    };
+    if (!ranges_unpacked)
+    {
+        // Unpack
+        int codepoint = 0x4e00;
+        ImWchar* dst = &ranges[6];
+        for (int n = 0; n < IM_ARRAYSIZE(offsets_from_0x4E00); n++, dst += 2)
+            dst[0] = dst[1] = (ImWchar)(codepoint += (offsets_from_0x4E00[n] + 1));
+        dst[0] = 0;
+        ranges_unpacked = true;
+    }
+    return &ranges[0];
+}
+
+extern const unsigned int proggy_clean_ttf_compressed_size;
+extern const unsigned int proggy_clean_ttf_compressed_data[9584/4];
+extern unsigned int stb_decompress_length(unsigned char *input);
+extern unsigned int stb_decompress(unsigned char *output, unsigned char *i, unsigned int length);
+
+// Load embedded ProggyClean.ttf at size 13
+bool    ImFont::LoadDefault()
+{
+    unsigned int buf_compressed_size = (int)proggy_clean_ttf_compressed_size;
+    unsigned char* buf_compressed = (unsigned char*)proggy_clean_ttf_compressed_data;
+    const size_t buf_decompressed_size = stb_decompress_length(buf_compressed);
+    unsigned char* buf_decompressed = (unsigned char *)ImGui::MemAlloc(buf_decompressed_size);
+    stb_decompress(buf_decompressed, buf_compressed, buf_compressed_size);
+    const bool ret = LoadFromMemoryTTF((void *)buf_decompressed, buf_decompressed_size, 13.0f, ImFont::GetGlyphRangesDefault(), 0);
+    ImGui::MemFree(buf_decompressed);
+    DisplayOffset.y += 1;
+    return ret;
+}
+
+bool    ImFont::LoadFromFileTTF(const char* filename, float size_pixels, const ImWchar* glyph_ranges, int font_no)
+{
+    void* data = NULL;
+    size_t data_size = 0;
+    if (!ImLoadFileToMemory(filename, "rb", (void**)&data, &data_size))
+        return false;
+    const bool ret = LoadFromMemoryTTF(data, data_size, size_pixels, glyph_ranges, font_no);
+    ImGui::MemFree(data);
+    return ret;
 }
 
-bool    ImFont::LoadFromFile(const char* filename)
+static int ImUpperPowerOfTwo(int v) { v--; v |= v >> 1; v |= v >> 2; v |= v >> 4; v |= v >> 8; v |= v >> 16; v++; return v; }
+
+bool    ImFont::LoadFromMemoryTTF(const void* data, size_t data_size, float size_pixels, const ImWchar* glyph_ranges, int font_no)
 {
-    IM_ASSERT(!IsLoaded());     // Call Clear()
+    Clear();
+    if (!glyph_ranges)
+        glyph_ranges = GetGlyphRangesDefault();
 
-    if (!ImLoadFileToMemory(filename, "rb", (void**)&Data, &DataSize))
+    // Initialize font information
+    stbtt_fontinfo ttf_info;
+    const int font_offset = stbtt_GetFontOffsetForIndex((unsigned char*)data, font_no);
+    IM_ASSERT(font_offset >= 0);
+    if (!stbtt_InitFont(&ttf_info, (unsigned char*)data, font_offset)) 
         return false;
-    DataOwned = true;
-    return LoadFromMemory(Data, DataSize);
-}
 
-bool    ImFont::LoadFromMemory(const void* data, size_t data_size)
-{
-    IM_ASSERT(!IsLoaded());     // Call Clear()
+    // Setup ranges
+    int glyph_count = 0;
+    int glyph_ranges_count = 0;
+    for (const ImWchar* p = glyph_ranges; p[0] && p[1]; p += 2)
+    {
+        glyph_count += p[1];
+        glyph_ranges_count++;
+    }
 
-    Data = (unsigned char*)data;
-    DataSize = data_size;
+    ImVector<stbtt_pack_range> ranges;
+    ranges.resize(glyph_ranges_count);
+    for (size_t i = 0; i < ranges.size(); i++)
+    {
+        stbtt_pack_range& range = ranges[i];
+        range.font_size = size_pixels;
+        range.first_unicode_char_in_range = glyph_ranges[i*2];
+        range.num_chars_in_range = (glyph_ranges[i*2+1] - range.first_unicode_char_in_range) + 1;
+        range.chardata_for_range = (stbtt_packedchar*)ImGui::MemAlloc(range.num_chars_in_range * sizeof(stbtt_packedchar));
+    }
 
-    // Parse data
-    if (DataSize < 4 || Data[0] != 'B' || Data[1] != 'M' || Data[2] != 'F' || Data[3] != 0x03)
-        return false;
-    for (const unsigned char* p = Data+4; p < Data + DataSize; )
     {
-        const unsigned char block_type = *(unsigned char*)p;
-        p += sizeof(unsigned char);
-        ImU32 block_size;   // use memcpy to read 4-byte because they may be unaligned. This seems to break when compiling for Emscripten.
-        memcpy(&block_size, p, sizeof(ImU32));
-        p += sizeof(ImU32);
+        TexWidth = 512;
+        TexHeight = 0;
+        TexPixels = NULL;
+        const int max_tex_height = 1024*16;
+        stbtt_pack_context spc;
+        int ret = stbtt_PackBegin(&spc, NULL, TexWidth, max_tex_height, 0, 1, NULL);
+        IM_ASSERT(ret);
+        stbtt_PackSetOversampling(&spc, 1, 1);
 
-        switch (block_type)
-        {
-        case 1:
-            IM_ASSERT(Info == NULL);
-            Info = (FntInfo*)p;
-            break;
-        case 2:
-            IM_ASSERT(Common == NULL);
-            Common = (FntCommon*)p;
-            break;
-        case 3:
-            for (const unsigned char* s = p; s < p+block_size && s < Data+DataSize; s = s + strlen((const char*)s) + 1)
-                Filenames.push_back((const char*)s);
-            break;
-        case 4:
-            IM_ASSERT(Glyphs == NULL && GlyphsCount == 0);
-            Glyphs = (FntGlyph*)p;
-            GlyphsCount = block_size / sizeof(FntGlyph);
-            break;
-        case 5:
-            IM_ASSERT(Kerning == NULL && KerningCount == 0);
-            Kerning = (FntKerning*)p;
-            KerningCount = block_size / sizeof(FntKerning);
-            break;
-        default:
-            break;
+        // Flag all characters as not packed
+        for (size_t i = 0; i < ranges.size(); ++i)
+            for (int j = 0; j < ranges[i].num_chars_in_range; ++j)
+                ranges[i].chardata_for_range[j].x0 = ranges[i].chardata_for_range[j].y0 = ranges[i].chardata_for_range[j].x1 = ranges[i].chardata_for_range[j].y1 = 0;
+    
+        // Pack our extra data rectangle first, so it will be on the upper-left corner of our texture (UV will have small values).
+        stbrp_rect extra_rect;
+        extra_rect.w = 16;
+        extra_rect.h = 16;
+        stbrp_pack_rects((stbrp_context*)spc.pack_info, &extra_rect, 1);
+        TexExtraDataPos = ImVec2(extra_rect.x, extra_rect.y);
+
+        // Pack
+        stbrp_rect* rects = (stbrp_rect*)ImGui::MemAlloc(sizeof(*rects) * glyph_count);
+        IM_ASSERT(rects);
+        const int n = stbtt_PackFontRangesGatherRects(&spc, &ttf_info, ranges.begin(), ranges.size(), rects);
+        stbrp_pack_rects((stbrp_context*)spc.pack_info, rects, n);
+
+        // Create texture
+        int tex_h = 0;
+        for (int i = 0; i < n; i++)
+            if (rects[i].was_packed)
+                tex_h = ImMax(tex_h, rects[i].y + rects[i].h);
+        TexHeight = ImUpperPowerOfTwo(tex_h);
+        TexPixels = (unsigned char*)ImGui::MemRealloc(TexPixels, TexWidth * TexHeight);
+        memset(TexPixels, 0, TexWidth * TexHeight);
+
+        // Render characters
+        spc.pixels = TexPixels;
+        spc.height = TexHeight;
+        ret = stbtt_PackFontRangesRenderIntoRects(&spc, &ttf_info, ranges.begin(), ranges.size(), rects);
+        stbtt_PackEnd(&spc);
+        ImGui::MemFree(rects);
+    }
+
+    // Setup glyphs for runtime
+    FontSize = size_pixels;
+
+    const float font_scale = stbtt_ScaleForPixelHeight(&ttf_info, size_pixels);
+    int font_ascent, font_descent, font_line_gap;
+    stbtt_GetFontVMetrics(&ttf_info, &font_ascent, &font_descent, &font_line_gap);
+
+    const float uv_scale_x = 1.0f / TexWidth;
+    const float uv_scale_y = 1.0f / TexHeight;
+    const int character_spacing_x = 1;
+    for (size_t i = 0; i < ranges.size(); i++)
+    {
+        stbtt_pack_range& range = ranges[i];
+        for (int char_idx = 0; char_idx < range.num_chars_in_range; char_idx += 1)
+        {
+            const int codepoint = range.first_unicode_char_in_range + char_idx;
+            const stbtt_packedchar& pc = range.chardata_for_range[char_idx];
+            if (!pc.x0 && !pc.x1 && !pc.y0 && !pc.y1)
+                continue;
+
+            Glyphs.resize(Glyphs.size() + 1);
+            ImFont::Glyph& glyph = Glyphs.back();
+            glyph.Codepoint = (ImWchar)codepoint;
+            glyph.Width = pc.x1 - pc.x0 + 1;
+            glyph.Height = pc.y1 - pc.y0 + 1;
+            glyph.XOffset = (signed short)(pc.xoff);
+            glyph.YOffset = (signed short)(pc.yoff) + (int)(font_ascent * font_scale);
+            glyph.XAdvance = (signed short)(pc.xadvance + character_spacing_x);  // Bake spacing into XAdvance
+            glyph.U0 = ((float)pc.x0 - 0.5f) * uv_scale_x;
+            glyph.V0 = ((float)pc.y0 - 0.5f) * uv_scale_y;
+            glyph.U1 = ((float)pc.x0 - 0.5f + glyph.Width) * uv_scale_x;
+            glyph.V1 = ((float)pc.y0 - 0.5f + glyph.Height) * uv_scale_y;
         }
-        p += block_size;
     }
 
     BuildLookupTable();
+
+    // Cleanup temporary
+    for (size_t i = 0; i < ranges.size(); i++)
+        ImGui::MemFree(ranges[i].chardata_for_range);
+
+    // Draw white pixel and make UV points to it
+    TexPixels[0] = TexPixels[1] = TexPixels[TexWidth+0] = TexPixels[TexWidth+1] = 0xFF;
+    TexUvWhitePixel = ImVec2(TexExtraDataPos.x + 0.5f / TexWidth, TexExtraDataPos.y + 0.5f / TexHeight);
+
     return true;
 }
 
 void ImFont::BuildLookupTable()
 {
-    ImU32 max_c = 0;
-    for (size_t i = 0; i != GlyphsCount; i++)
-        if (max_c < Glyphs[i].Id)
-            max_c = Glyphs[i].Id;
+    int max_codepoint = 0;
+    for (size_t i = 0; i != Glyphs.size(); i++)
+        max_codepoint = ImMax(max_codepoint, (int)Glyphs[i].Codepoint);
 
     IndexLookup.clear();
-    IndexLookup.resize(max_c + 1);
+    IndexLookup.resize((size_t)max_codepoint + 1);
     for (size_t i = 0; i < IndexLookup.size(); i++)
         IndexLookup[i] = -1;
-    for (size_t i = 0; i < GlyphsCount; i++)
-        IndexLookup[Glyphs[i].Id] = (int)i;
+    for (size_t i = 0; i < Glyphs.size(); i++)
+        IndexLookup[(int)Glyphs[i].Codepoint] = (int)i;
 }
 
-const ImFont::FntGlyph* ImFont::FindGlyph(unsigned short c) const
+const ImFont::Glyph* ImFont::FindGlyph(unsigned short c) const
 {
     if (c < (int)IndexLookup.size())
     {
         const int i = IndexLookup[c];
-        if (i >= 0 && i < (int)GlyphsCount)
-            return &Glyphs[i];
+        return &Glyphs[i];
     }
     return FallbackGlyph;
 }
@@ -6388,17 +6563,10 @@ const char* ImFont::CalcWordWrapPositionA(float scale, const char* text, const c
     // List of hardcoded separators: .,;!?'"
 
     // Skip extra blanks after a line returns (that includes not counting them in width computation)
-    // e.g. "Hello    world"
-    // -->
-    // "Hello"
-    // "world"
+    // e.g. "Hello    world" --> "Hello" "World"
 
     // Cut words that cannot possibly fit within one line.
-    // e.g.: "The tropical fish" with ~5 characters worth of width
-    // --> 
-    //  "The tr"
-    //  "opical"
-    //  "fish"
+    // e.g.: "The tropical fish" with ~5 characters worth of width --> "The tr" "opical" "fish"
 
     float line_width = 0.0f;
     float word_width = 0.0f;
@@ -6426,13 +6594,13 @@ const char* ImFont::CalcWordWrapPositionA(float scale, const char* text, const c
         float char_width = 0.0f;
         if (c == '\t')
         {
-            if (const FntGlyph* glyph = FindGlyph((unsigned short)' '))
-                char_width = (glyph->XAdvance + Info->SpacingHoriz) * 4 * scale;
+            if (const Glyph* glyph = FindGlyph((unsigned short)' '))
+                char_width = (glyph->XAdvance * 4) * scale;
         }
         else
         {
-            if (const FntGlyph* glyph = FindGlyph((unsigned short)c))
-                char_width = (glyph->XAdvance + Info->SpacingHoriz) * scale;
+            if (const Glyph* glyph = FindGlyph((unsigned short)c))
+                char_width = glyph->XAdvance * scale;
         }
 
         if (c == ' ' || c == '\t')
@@ -6483,8 +6651,8 @@ ImVec2 ImFont::CalcTextSizeA(float size, float max_width, float wrap_width, cons
     if (!text_end)
         text_end = text_begin + strlen(text_begin); // FIXME-OPT
 
-    const float scale = size / (float)Info->FontSize;
-    const float line_height = (float)Info->FontSize * scale;
+    const float scale = size / FontSize;
+    const float line_height = FontSize * scale;
 
     ImVec2 text_size = ImVec2(0,0);
     float line_width = 0.0f;
@@ -6541,12 +6709,12 @@ ImVec2 ImFont::CalcTextSizeA(float size, float max_width, float wrap_width, cons
         if (c == '\t')
         {
             // FIXME: Better TAB handling
-            if (const FntGlyph* glyph = FindGlyph((unsigned short)' '))
-                char_width = (glyph->XAdvance + Info->SpacingHoriz) * 4 * scale;
+            if (const Glyph* glyph = FindGlyph((unsigned short)' '))
+                char_width = (glyph->XAdvance * 4) * scale;
         }
-        else if (const FntGlyph* glyph = FindGlyph((unsigned short)c))
+        else if (const Glyph* glyph = FindGlyph((unsigned short)c))
         {
-            char_width = (glyph->XAdvance + Info->SpacingHoriz) * scale;
+            char_width = glyph->XAdvance * scale;
         }
 
         if (line_width + char_width >= max_width)
@@ -6573,8 +6741,8 @@ ImVec2 ImFont::CalcTextSizeW(float size, float max_width, const ImWchar* text_be
     if (!text_end)
         text_end = text_begin + ImStrlenW(text_begin);
 
-    const float scale = size / (float)Info->FontSize;
-    const float line_height = (float)Info->FontSize * scale;
+    const float scale = size / FontSize;
+    const float line_height = FontSize * scale;
 
     ImVec2 text_size = ImVec2(0,0);
     float line_width = 0.0f;
@@ -6597,13 +6765,13 @@ ImVec2 ImFont::CalcTextSizeW(float size, float max_width, const ImWchar* text_be
         if (c == '\t')
         {
             // FIXME: Better TAB handling
-            if (const FntGlyph* glyph = FindGlyph((unsigned short)' '))
-                char_width = (glyph->XAdvance + Info->SpacingHoriz) * 4 * scale;
+            if (const Glyph* glyph = FindGlyph((unsigned short)' '))
+                char_width = (glyph->XAdvance * 4) * scale;
         }
         else
         {
-            if (const FntGlyph* glyph = FindGlyph((unsigned short)c))
-                char_width = (glyph->XAdvance + Info->SpacingHoriz) * scale;
+            if (const Glyph* glyph = FindGlyph((unsigned short)c))
+                char_width = glyph->XAdvance * scale;
         }
 
         if (line_width + char_width >= max_width)
@@ -6630,11 +6798,8 @@ void ImFont::RenderText(float size, ImVec2 pos, ImU32 col, const ImVec4& clip_re
     if (!text_end)
         text_end = text_begin + strlen(text_begin);
 
-    const float scale = size / (float)Info->FontSize;
-    const float line_height = (float)Info->FontSize * scale;
-    const float tex_scale_x = 1.0f / (float)Common->ScaleW;
-    const float tex_scale_y = 1.0f / (float)Common->ScaleH;
-    const float outline = (float)Info->Outline;
+    const float scale = size / FontSize;
+    const float line_height = FontSize * scale;
 
     // Align to be pixel perfect
     pos.x = (float)(int)pos.x + DisplayOffset.x;
@@ -6692,46 +6857,46 @@ void ImFont::RenderText(float size, ImVec2 pos, ImU32 col, const ImVec4& clip_re
         if (c == '\t')
         {
             // FIXME: Better TAB handling
-            if (const FntGlyph* glyph = FindGlyph((unsigned short)' '))
-                char_width += (glyph->XAdvance + Info->SpacingHoriz) * 4 * scale;
+            if (const Glyph* glyph = FindGlyph((unsigned short)' '))
+                char_width += (glyph->XAdvance * 4) * scale;
         }
-        else if (const FntGlyph* glyph = FindGlyph((unsigned short)c))
+        else if (const Glyph* glyph = FindGlyph((unsigned short)c))
         {
-            char_width = (glyph->XAdvance + Info->SpacingHoriz) * scale;
+            char_width = glyph->XAdvance * scale;
             if (c != ' ')
             {
                 // Clipping on Y is more likely
-                const float y1 = (float)(y + (glyph->YOffset + outline*2) * scale);
+                const float y1 = (float)(y + glyph->YOffset * scale);
                 const float y2 = (float)(y1 + glyph->Height * scale);
                 if (y1 <= clip_rect.w && y2 >= clip_rect.y)
                 {
-                    const float x1 = (float)(x + (glyph->XOffset + outline) * scale);
+                    const float x1 = (float)(x + glyph->XOffset * scale);
                     const float x2 = (float)(x1 + glyph->Width * scale);
                     if (x1 <= clip_rect.z && x2 >= clip_rect.x)
                     {
                         // Render a character
-                        const float s1 = (glyph->X) * tex_scale_x;
-                        const float t1 = (glyph->Y) * tex_scale_y;
-                        const float s2 = (glyph->X + glyph->Width) * tex_scale_x;
-                        const float t2 = (glyph->Y + glyph->Height) * tex_scale_y;
+                        const float u0 = glyph->U0;
+                        const float v0 = glyph->V0;
+                        const float u1 = glyph->U1;
+                        const float v1 = glyph->V1;
 
                         out_vertices[0].pos = ImVec2(x1, y1);
-                        out_vertices[0].uv  = ImVec2(s1, t1);
+                        out_vertices[0].uv  = ImVec2(u0, v0);
                         out_vertices[0].col = col;
 
                         out_vertices[1].pos = ImVec2(x2, y1);
-                        out_vertices[1].uv  = ImVec2(s2, t1);
+                        out_vertices[1].uv  = ImVec2(u1, v0);
                         out_vertices[1].col = col;
 
                         out_vertices[2].pos = ImVec2(x2, y2);
-                        out_vertices[2].uv  = ImVec2(s2, t2);
+                        out_vertices[2].uv  = ImVec2(u1, v1);
                         out_vertices[2].col = col;
 
                         out_vertices[3] = out_vertices[0];
                         out_vertices[4] = out_vertices[2];
 
                         out_vertices[5].pos = ImVec2(x1, y2);
-                        out_vertices[5].uv  = ImVec2(s1, t2);
+                        out_vertices[5].uv  = ImVec2(u0, v1);
                         out_vertices[5].col = col;
 
                         out_vertices += 6;
@@ -6932,19 +7097,19 @@ void ImGui::ShowStyleEditor(ImGuiStyle* ref)
         ImGui::TreePop();
     }
 
-    /*
     // Font scaling options
     // Note that those are not actually part of the style.
     if (ImGui::TreeNode("Font"))
     {
         static float window_scale = 1.0f;
+        ImFont* font = ImGui::GetIO().Font;
+        ImGui::Text("Font Size: %.2f", font->FontSize);
         ImGui::SliderFloat("window scale", &window_scale, 0.3f, 2.0f, "%.1f");                   // scale only this window
-        ImGui::SliderFloat("font scale", &ImGui::GetIO().Font->Scale, 0.3f, 2.0f, "%.1f");       // scale only this font
+        ImGui::SliderFloat("font scale", &font->Scale, 0.3f, 2.0f, "%.1f");                      // scale only this font
         ImGui::SliderFloat("global scale", &ImGui::GetIO().FontGlobalScale, 0.3f, 2.0f, "%.1f"); // scale everything
         ImGui::SetWindowFontScale(window_scale);
         ImGui::TreePop();
     }
-    */
 
     ImGui::PopItemWidth();
 }
@@ -7843,156 +8008,332 @@ int main(int argc, char** argv)
     return 1;
 }
 */
+
 //-----------------------------------------------------------------------------
 
-static const unsigned int proggy_clean_13_png_size = 1557;
-static const unsigned int proggy_clean_13_png_data[1560/4] =
-{
-    0x474e5089, 0x0a1a0a0d, 0x0d000000, 0x52444849, 0x00010000, 0x80000000, 0x00000308, 0x476bd300, 0x00000038, 0x544c5006, 0x00000045, 0xa5ffffff, 
-    0x00dd9fd9, 0x74010000, 0x00534e52, 0x66d8e640, 0xbd050000, 0x54414449, 0x9bed5e78, 0x30e36e51, 0xeef5440c, 0x31fde97f, 0x584ec0f0, 0x681ace39, 
-    0xca120e6b, 0x1c5a28a6, 0xc5d98a89, 0x1a3d602e, 0x323c0043, 0xf6bc9e68, 0xbe3ad62c, 0x3d60260f, 0x82d60096, 0xe0bfc707, 0xfb9bf1d1, 0xbf0267ac, 
-    0x1600260f, 0x061229c0, 0x0000c183, 0x37162c58, 0xdfa088fc, 0xde7d5704, 0x77fcbb80, 0x48e5c3f1, 0x73d8b8f8, 0xc4af7802, 0x1ca111ad, 0x0001ed7a, 
-    0x76eda3ef, 0xb78d3e00, 0x801c7203, 0x0215c0b1, 0x0410b044, 0xa85100d4, 0x07627ec7, 0x0cf83fa8, 0x94001a22, 0xf87347f1, 0xdcb5cfc1, 0x1c3880cc, 
-    0xd4e034ca, 0xfa928d9d, 0xb0167e31, 0x325cc570, 0x4bbd584b, 0xbd4e6574, 0x70bae084, 0xf0c0008a, 0x3f601ddb, 0x0bba506a, 0xa58a0082, 0x5b46946e, 
-    0x720a4ccd, 0xdfaaed39, 0x25dc8042, 0x7ee403f4, 0x2ad69cc9, 0x6c4b3009, 0x429037ed, 0x0293f875, 0x1a69dced, 0xab120198, 0x61c01d88, 0xcf2e43dc, 
-    0xfc3c00ef, 0xc049a270, 0xdbbea582, 0x0d592601, 0xc3c9a8dd, 0x5013d143, 0x19a47bbb, 0xf89253dd, 0x0a9901dc, 0x38900ecd, 0xb2dec9d7, 0xc2b91230, 
-    0xb8e0106f, 0x976404cb, 0x5d83c3f3, 0x6e8086fd, 0x5c9ab007, 0xf50354f6, 0xe7e72002, 0x4bc870ca, 0xab49736f, 0xc137c6e0, 0xa9aa6ff3, 0xbff84f2f, 
-    0x673e6e20, 0xf6e3c7e0, 0x618fe05a, 0x39ca2a00, 0x93ca03b4, 0x3a9d2728, 0xbbebba41, 0xce0e3681, 0x6e29ec05, 0x111eca83, 0xfdfe7ec1, 0xa7c8a75b, 
-    0xac6bc3ab, 0x72a5bc25, 0x9f612c1c, 0x378ec05e, 0x7202b157, 0x789e5a82, 0x5256bc0e, 0xcb900996, 0x10721105, 0x00823ce0, 0x69ab59fb, 0x39c72084, 
-    0xf5e37b25, 0xd1794700, 0x538d0637, 0x9a2bff4f, 0xce0d43a4, 0xa6da7ed2, 0xd7095132, 0xf5ad6232, 0x9aaa8e9c, 0xd8d1d3ed, 0x058940a1, 0x21f00d64, 
-    0x89a5c9de, 0x021b3f24, 0x77a97aac, 0x714be65a, 0x5e2d57ae, 0x27e3610f, 0x28809288, 0x36b9559f, 0xd00e347a, 0x0094e385, 0x565d034d, 0x7f52d5f2, 
-    0x9aea81de, 0x5e804909, 0x010d7f0a, 0x8f0d3fb1, 0xbbce23bc, 0x375e85ac, 0x01fa03b9, 0xc0526c3a, 0xf7866870, 0x9d46d804, 0x158ebf64, 0x7bd534c5, 
-    0xd80cf202, 0x410ee80f, 0x79419915, 0x74a844ae, 0x94119881, 0xcbbcc0fc, 0xa263d471, 0x013d0269, 0x67f6a0f8, 0x3e4474d0, 0xd1e50cb5, 0x56fd0e60, 
-    0xc4c0fd4c, 0x940629ff, 0xe18a7a16, 0xcca0330f, 0xb8ed50b7, 0x6935778b, 0x3735c791, 0x3909eb94, 0x0be36620, 0x0ac0d7aa, 0xefe942c9, 0xf0092727, 
-    0x5c020ee2, 0x0246da53, 0xa24be8bc, 0xa891ab94, 0xd012c7e2, 0x9c115954, 0xde0dac8e, 0x555dc022, 0x59e84f77, 0xbed2cf80, 0xe9af2cda, 0x4b600716, 
-    0x8955bd80, 0x7098c3f3, 0x25a8466a, 0x4ddbf26a, 0x5f554753, 0xf4890f28, 0x886a27ab, 0x54a00413, 0x0a157ca9, 0x52909a80, 0x7122a312, 0x0024a75c, 
-    0xe6d72935, 0xecde29cf, 0x025de009, 0x7995a6aa, 0x4a180491, 0x013df0d8, 0xe009edba, 0xd40019dc, 0x45b36b2a, 0x0122eb0d, 0x6e80a79f, 0x746590f5, 
-    0xd1a6dd49, 0xc05954b6, 0x83d4b957, 0xa00fe5b1, 0x59695ad7, 0xcff8433d, 0x44a0f340, 0xdd226c73, 0x5537f08c, 0xe1e89c32, 0x431056af, 0x233eb000, 
-    0x60773f40, 0xed7e490a, 0xc160091f, 0x12829db5, 0x43fbe6cf, 0x0a6b26c2, 0xd5f0f35a, 0xfc09fda8, 0x73525f8c, 0x2ea38cf9, 0x32bc410b, 0x94a60a22, 
-    0x1f62a42b, 0x5f290034, 0x07beaa91, 0x1e8ccb40, 0x17d6b0f9, 0xa2a017c9, 0x4c79a610, 0xa1de6525, 0xe975029f, 0xe063585f, 0x6246cfbb, 0x04acad44, 
-    0xe6a05138, 0xd03d8434, 0xc9950013, 0x5d4c809e, 0xfd26932d, 0x739213ac, 0xe260d8ef, 0xe4164617, 0x16fc60aa, 0x1d0b21e7, 0x445004b4, 0x13fd1b59, 
-    0x56b0f804, 0xaa936a3a, 0x335459c1, 0xb37f8caa, 0x06b68e03, 0x14d5eb01, 0x8300c78c, 0x9674792a, 0x20ba791b, 0x4d88024d, 0xef747354, 0x451e673e, 
-    0xc4dafc9a, 0xe53b9cd1, 0x32b4011a, 0x3d702c0f, 0x09bc0b40, 0x220d277d, 0x47eb7809, 0x8a946500, 0x7a28c4bd, 0x96e00f99, 0xc04365da, 0x05edcf46, 
-    0x7dee2c27, 0xe6020b7f, 0x159ecedf, 0xcbdb00ff, 0x516bb9e3, 0xd0716161, 0xeba75956, 0xf17fc22b, 0x5c578beb, 0xfe474a09, 0xc1750a87, 0xe384c189, 
-    0x5df54e26, 0xa6f76b79, 0xd4b172be, 0x3e8d5ceb, 0x832d90ec, 0x180368e7, 0x354c724d, 0x1a8b1412, 0x8de07be9, 0xaf009efe, 0x4616c621, 0x2860eb01, 
-    0x244f1404, 0xc3de724b, 0x6497a802, 0xab2f4419, 0x4e02910d, 0xe3ecf410, 0x7a6404a8, 0x8c72b112, 0xde5bc706, 0xd4f8ffe9, 0x50176344, 0x7b49fe7d, 
-    0x02c1d88c, 0x25634a40, 0x194804f7, 0x03b76d84, 0x392bde58, 0xdeebad27, 0xc160c021, 0xa97a72db, 0xa8040b83, 0x78804f3e, 0x046b9433, 0x178cc824, 
-    0x62800897, 0x7010370b, 0x21cfe7e4, 0x8053ec40, 0xf9d60526, 0xae9d353f, 0x069b40c7, 0x80496f14, 0x57e682b3, 0x6e0273e0, 0x974e2e28, 0x60ab7c3d, 
-    0x2025ba33, 0x507b3a8c, 0x12b70173, 0xd095c400, 0xee012d96, 0x6e194c9a, 0xe5933f89, 0x43b70102, 0xf30306aa, 0xc5802189, 0x53c077c3, 0x86029009, 
-    0xa0c1e780, 0xa4c04c1f, 0x93dbd580, 0xf8149809, 0x06021893, 0x3060c183, 0x83060c18, 0x183060c1, 0xc183060c, 0x0c183060, 0x60c18306, 0xfe0c1830, 
-    0x0cb69501, 0x7a40d9df, 0x000000dd, 0x4e454900, 0x6042ae44, 0x00000082, 
-};
+// Decompressor from stb.h (public domain) by Sean Barrett
+// https://github.com/nothings/stb/blob/master/stb.h
 
-static const unsigned int proggy_clean_13_fnt_size = 4647;
-static const unsigned int proggy_clean_13_fnt_data[4648/4] =
-{
-    0x03464d42, 0x00001a01, 0x40000d00, 0x01006400, 0x00000000, 0x50000101, 0x67676f72, 0x656c4379, 0x02006e61, 0x0000000f, 0x000a000d, 0x00800100, 
-    0x01000001, 0x03000000, 0x00000016, 0x676f7270, 0x635f7967, 0x6e61656c, 0x5f33315f, 0x6e702e30, 0xd0040067, 0x00000011, 0x2e000000, 0x07000e00, 
-    0x00000d00, 0x07000000, 0x010f0000, 0x36000000, 0x05003800, 0x01000d00, 0x07000000, 0x020f0000, 0x86000000, 0x07000e00, 0x00000d00, 0x07000000, 
-    0x030f0000, 0x07000000, 0x06001c00, 0x01000d00, 0x07000000, 0x040f0000, 0x15000000, 0x06001c00, 0x01000d00, 0x07000000, 0x050f0000, 0x23000000, 
-    0x06001c00, 0x01000d00, 0x07000000, 0x060f0000, 0x31000000, 0x06001c00, 0x01000d00, 0x07000000, 0x070f0000, 0xfc000000, 0x03003800, 0x02000d00, 
-    0x07000000, 0x080f0000, 0x54000000, 0x05003800, 0x01000d00, 0x07000000, 0x090f0000, 0x4d000000, 0x06001c00, 0x01000d00, 0x07000000, 0x0a0f0000, 
-    0xa8000000, 0x06001c00, 0x01000d00, 0x07000000, 0x0b0f0000, 0x6a000000, 0x04004600, 0x00000d00, 0x07000000, 0x0c0f0000, 0x74000000, 0x04004600, 
-    0x00000d00, 0x07000000, 0x0d0f0000, 0x88000000, 0x04004600, 0x03000d00, 0x07000000, 0x0e0f0000, 0x65000000, 0x04004600, 0x03000d00, 0x07000000, 
-    0x0f0f0000, 0x36000000, 0x07000e00, 0x00000d00, 0x07000000, 0x100f0000, 0x5a000000, 0x05003800, 0x00000d00, 0x07000000, 0x110f0000, 0x60000000, 
-    0x05003800, 0x00000d00, 0x07000000, 0x120f0000, 0xe4000000, 0x03004600, 0x01000d00, 0x07000000, 0x130f0000, 0xe0000000, 0x03004600, 0x01000d00, 
-    0x07000000, 0x140f0000, 0x66000000, 0x05003800, 0x00000d00, 0x07000000, 0x150f0000, 0x6c000000, 0x05003800, 0x00000d00, 0x07000000, 0x160f0000, 
-    0x72000000, 0x05003800, 0x00000d00, 0x07000000, 0x170f0000, 0xd8000000, 0x03004600, 0x00000d00, 0x07000000, 0x180f0000, 0xcc000000, 0x03004600, 
-    0x01000d00, 0x07000000, 0x190f0000, 0xc8000000, 0x03004600, 0x02000d00, 0x07000000, 0x1a0f0000, 0x78000000, 0x05003800, 0x00000d00, 0x07000000, 
-    0x1b0f0000, 0x84000000, 0x05003800, 0x00000d00, 0x07000000, 0x1c0f0000, 0x00000000, 0x15000000, 0xf9000d00, 0x070000ff, 0x1d0f0000, 0xb0000000, 
-    0x15000000, 0xf9000d00, 0x070000ff, 0x1e0f0000, 0x2c000000, 0x15000000, 0xf9000d00, 0x070000ff, 0x200f0000, 0x9a000000, 0x15000000, 0xf9000d00, 
-    0x070000ff, 0x210f0000, 0x0c000000, 0x01005400, 0x03000d00, 0x07000000, 0x220f0000, 0xbc000000, 0x03004600, 0x02000d00, 0x07000000, 0x230f0000, 
-    0x4e000000, 0x07000e00, 0x00000d00, 0x07000000, 0x240f0000, 0x8a000000, 0x05003800, 0x01000d00, 0x07000000, 0x250f0000, 0xa6000000, 0x07000e00, 
-    0x00000d00, 0x07000000, 0x260f0000, 0xf4000000, 0x06000e00, 0x01000d00, 0x07000000, 0x270f0000, 0x06000000, 0x01005400, 0x03000d00, 0x07000000, 
-    0x280f0000, 0xb8000000, 0x03004600, 0x02000d00, 0x07000000, 0x290f0000, 0xb4000000, 0x03004600, 0x02000d00, 0x07000000, 0x2a0f0000, 0x90000000, 
-    0x05003800, 0x01000d00, 0x07000000, 0x2b0f0000, 0x96000000, 0x05003800, 0x01000d00, 0x07000000, 0x2c0f0000, 0xe8000000, 0x02004600, 0x01000d00, 
-    0x07000000, 0x2d0f0000, 0x9c000000, 0x05003800, 0x01000d00, 0x07000000, 0x2e0f0000, 0x04000000, 0x01005400, 0x02000d00, 0x07000000, 0x2f0f0000, 
-    0xa2000000, 0x05003800, 0x01000d00, 0x07000000, 0x300f0000, 0xae000000, 0x05003800, 0x01000d00, 0x07000000, 0x310f0000, 0xd8000000, 0x05003800, 
-    0x01000d00, 0x07000000, 0x320f0000, 0xfa000000, 0x05000000, 0x01000d00, 0x07000000, 0x330f0000, 0x31000000, 0x05002a00, 0x01000d00, 0x07000000, 
-    0x340f0000, 0x3f000000, 0x06001c00, 0x01000d00, 0x07000000, 0x350f0000, 0x37000000, 0x05002a00, 0x01000d00, 0x07000000, 0x360f0000, 0x3d000000, 
-    0x05002a00, 0x01000d00, 0x07000000, 0x370f0000, 0x43000000, 0x05002a00, 0x01000d00, 0x07000000, 0x380f0000, 0x49000000, 0x05002a00, 0x01000d00, 
-    0x07000000, 0x390f0000, 0x4f000000, 0x05002a00, 0x01000d00, 0x07000000, 0x3a0f0000, 0x02000000, 0x01005400, 0x03000d00, 0x07000000, 0x3b0f0000, 
-    0xfa000000, 0x02004600, 0x01000d00, 0x07000000, 0x3c0f0000, 0x77000000, 0x06001c00, 0x00000d00, 0x07000000, 0x3d0f0000, 0x7e000000, 0x06001c00, 
-    0x01000d00, 0x07000000, 0x3e0f0000, 0x85000000, 0x06001c00, 0x01000d00, 0x07000000, 0x3f0f0000, 0x55000000, 0x05002a00, 0x01000d00, 0x07000000, 
-    0x400f0000, 0xae000000, 0x07000e00, 0x00000d00, 0x07000000, 0x410f0000, 0xe0000000, 0x06001c00, 0x01000d00, 0x07000000, 0x420f0000, 0xa1000000, 
-    0x06001c00, 0x01000d00, 0x07000000, 0x430f0000, 0x5b000000, 0x05002a00, 0x01000d00, 0x07000000, 0x440f0000, 0xaf000000, 0x06001c00, 0x01000d00, 
-    0x07000000, 0x450f0000, 0x61000000, 0x05002a00, 0x01000d00, 0x07000000, 0x460f0000, 0x67000000, 0x05002a00, 0x01000d00, 0x07000000, 0x470f0000, 
-    0x38000000, 0x06001c00, 0x01000d00, 0x07000000, 0x480f0000, 0x8c000000, 0x06001c00, 0x01000d00, 0x07000000, 0x490f0000, 0xa0000000, 0x03004600, 
-    0x02000d00, 0x07000000, 0x4a0f0000, 0x97000000, 0x04004600, 0x01000d00, 0x07000000, 0x4b0f0000, 0xb6000000, 0x06001c00, 0x01000d00, 0x07000000, 
-    0x4c0f0000, 0x6d000000, 0x05002a00, 0x01000d00, 0x07000000, 0x4d0f0000, 0x1e000000, 0x07000e00, 0x00000d00, 0x07000000, 0x4e0f0000, 0x23000000, 
-    0x06002a00, 0x01000d00, 0x07000000, 0x4f0f0000, 0xed000000, 0x06000e00, 0x01000d00, 0x07000000, 0x500f0000, 0x73000000, 0x05002a00, 0x01000d00, 
-    0x07000000, 0x510f0000, 0x00000000, 0x06001c00, 0x01000d00, 0x07000000, 0x520f0000, 0x0e000000, 0x06001c00, 0x01000d00, 0x07000000, 0x530f0000, 
-    0x1c000000, 0x06001c00, 0x01000d00, 0x07000000, 0x540f0000, 0x66000000, 0x07000e00, 0x00000d00, 0x07000000, 0x550f0000, 0x2a000000, 0x06001c00, 
-    0x01000d00, 0x07000000, 0x560f0000, 0x6e000000, 0x07000e00, 0x00000d00, 0x07000000, 0x570f0000, 0x76000000, 0x07000e00, 0x00000d00, 0x07000000, 
-    0x580f0000, 0x46000000, 0x06001c00, 0x01000d00, 0x07000000, 0x590f0000, 0x7e000000, 0x07000e00, 0x00000d00, 0x07000000, 0x5a0f0000, 0x54000000, 
-    0x06001c00, 0x01000d00, 0x07000000, 0x5b0f0000, 0x9c000000, 0x03004600, 0x02000d00, 0x07000000, 0x5c0f0000, 0x79000000, 0x05002a00, 0x01000d00, 
-    0x07000000, 0x5d0f0000, 0xdc000000, 0x03004600, 0x02000d00, 0x07000000, 0x5e0f0000, 0x7f000000, 0x05002a00, 0x01000d00, 0x07000000, 0x5f0f0000, 
-    0xc6000000, 0x07000e00, 0x00000d00, 0x07000000, 0x600f0000, 0xfd000000, 0x02004600, 0x02000d00, 0x07000000, 0x610f0000, 0x85000000, 0x05002a00, 
-    0x01000d00, 0x07000000, 0x620f0000, 0x8b000000, 0x05002a00, 0x01000d00, 0x07000000, 0x630f0000, 0x91000000, 0x05002a00, 0x01000d00, 0x07000000, 
-    0x640f0000, 0x97000000, 0x05002a00, 0x01000d00, 0x07000000, 0x650f0000, 0x9d000000, 0x05002a00, 0x01000d00, 0x07000000, 0x660f0000, 0xa3000000, 
-    0x05002a00, 0x01000d00, 0x07000000, 0x670f0000, 0xa9000000, 0x05002a00, 0x01000d00, 0x07000000, 0x680f0000, 0xaf000000, 0x05002a00, 0x01000d00, 
-    0x07000000, 0x690f0000, 0xee000000, 0x02004600, 0x02000d00, 0x07000000, 0x6a0f0000, 0x92000000, 0x04004600, 0x01000d00, 0x07000000, 0x6b0f0000, 
-    0xb5000000, 0x05002a00, 0x01000d00, 0x07000000, 0x6c0f0000, 0xfd000000, 0x02002a00, 0x02000d00, 0x07000000, 0x6d0f0000, 0x8e000000, 0x07000e00, 
-    0x00000d00, 0x07000000, 0x6e0f0000, 0xbb000000, 0x05002a00, 0x01000d00, 0x07000000, 0x6f0f0000, 0xc1000000, 0x05002a00, 0x01000d00, 0x07000000, 
-    0x700f0000, 0xc7000000, 0x05002a00, 0x01000d00, 0x07000000, 0x710f0000, 0xcd000000, 0x05002a00, 0x01000d00, 0x07000000, 0x720f0000, 0xd3000000, 
-    0x05002a00, 0x01000d00, 0x07000000, 0x730f0000, 0xd9000000, 0x05002a00, 0x01000d00, 0x07000000, 0x740f0000, 0x7e000000, 0x04004600, 0x02000d00, 
-    0x07000000, 0x750f0000, 0xdf000000, 0x05002a00, 0x01000d00, 0x07000000, 0x760f0000, 0xe5000000, 0x05002a00, 0x01000d00, 0x07000000, 0x770f0000, 
-    0xbe000000, 0x07000e00, 0x00000d00, 0x07000000, 0x780f0000, 0xeb000000, 0x05002a00, 0x01000d00, 0x07000000, 0x790f0000, 0xf1000000, 0x05002a00, 
-    0x01000d00, 0x07000000, 0x7a0f0000, 0xf7000000, 0x05002a00, 0x01000d00, 0x07000000, 0x7b0f0000, 0x00000000, 0x05003800, 0x01000d00, 0x07000000, 
-    0x7c0f0000, 0x00000000, 0x01005400, 0x03000d00, 0x07000000, 0x7d0f0000, 0x06000000, 0x05003800, 0x01000d00, 0x07000000, 0x7e0f0000, 0x16000000, 
-    0x07000e00, 0x00000d00, 0x07000000, 0x7f0f0000, 0x58000000, 0x15000000, 0xf9000d00, 0x070000ff, 0x810f0000, 0x16000000, 0x15000000, 0xf9000d00, 
-    0x070000ff, 0x8d0f0000, 0x00000000, 0x15000e00, 0xf9000d00, 0x070000ff, 0x8f0f0000, 0xc6000000, 0x15000000, 0xf9000d00, 0x070000ff, 0x900f0000, 
-    0x6e000000, 0x15000000, 0xf9000d00, 0x070000ff, 0x9d0f0000, 0x84000000, 0x15000000, 0xf9000d00, 0x070000ff, 0xa00f0000, 0xdc000000, 0x15000000, 
-    0xf9000d00, 0x070000ff, 0xa10f0000, 0x0a000000, 0x01005400, 0x03000d00, 0x07000000, 0xa20f0000, 0x0c000000, 0x05003800, 0x01000d00, 0x07000000, 
-    0xa30f0000, 0x12000000, 0x05003800, 0x01000d00, 0x07000000, 0xa40f0000, 0x96000000, 0x07000e00, 0x00000d00, 0x07000000, 0xa50f0000, 0x5e000000, 
-    0x07000e00, 0x00000d00, 0x07000000, 0xa60f0000, 0x08000000, 0x01005400, 0x03000d00, 0x07000000, 0xa70f0000, 0x18000000, 0x05003800, 0x01000d00, 
-    0x07000000, 0xa80f0000, 0xac000000, 0x03004600, 0x02000d00, 0x07000000, 0xa90f0000, 0x56000000, 0x07000e00, 0x00000d00, 0x07000000, 0xaa0f0000, 
-    0x8d000000, 0x04004600, 0x01000d00, 0x07000000, 0xab0f0000, 0x1e000000, 0x05003800, 0x01000d00, 0x07000000, 0xac0f0000, 0xfb000000, 0x04000e00, 
-    0x01000d00, 0x07000000, 0xad0f0000, 0x42000000, 0x15000000, 0xf9000d00, 0x070000ff, 0xae0f0000, 0x3e000000, 0x07000e00, 0x00000d00, 0x07000000, 
-    0xaf0f0000, 0x26000000, 0x07000e00, 0x00000d00, 0x07000000, 0xb00f0000, 0x6f000000, 0x04004600, 0x01000d00, 0x07000000, 0xb10f0000, 0x24000000, 
-    0x05003800, 0x01000d00, 0x07000000, 0xb20f0000, 0x79000000, 0x04004600, 0x01000d00, 0x07000000, 0xb30f0000, 0x83000000, 0x04004600, 0x01000d00, 
-    0x07000000, 0xb40f0000, 0xeb000000, 0x02004600, 0x03000d00, 0x07000000, 0xb50f0000, 0x46000000, 0x07000e00, 0x00000d00, 0x07000000, 0xb60f0000, 
-    0xe6000000, 0x06000e00, 0x01000d00, 0x07000000, 0xb70f0000, 0xc0000000, 0x03004600, 0x02000d00, 0x07000000, 0xb80f0000, 0xf7000000, 0x02004600, 
-    0x03000d00, 0x07000000, 0xb90f0000, 0xc4000000, 0x03004600, 0x01000d00, 0x07000000, 0xba0f0000, 0x60000000, 0x04004600, 0x01000d00, 0x07000000, 
-    0xbb0f0000, 0x2a000000, 0x05003800, 0x01000d00, 0x07000000, 0xbc0f0000, 0x1c000000, 0x06002a00, 0x01000d00, 0x07000000, 0xbd0f0000, 0xc4000000, 
-    0x06001c00, 0x01000d00, 0x07000000, 0xbe0f0000, 0x9e000000, 0x07000e00, 0x00000d00, 0x07000000, 0xbf0f0000, 0x30000000, 0x05003800, 0x01000d00, 
-    0x07000000, 0xc00f0000, 0x9a000000, 0x06001c00, 0x01000d00, 0x07000000, 0xc10f0000, 0x93000000, 0x06001c00, 0x01000d00, 0x07000000, 0xc20f0000, 
-    0x70000000, 0x06001c00, 0x01000d00, 0x07000000, 0xc30f0000, 0x69000000, 0x06001c00, 0x01000d00, 0x07000000, 0xc40f0000, 0x62000000, 0x06001c00, 
-    0x01000d00, 0x07000000, 0xc50f0000, 0x5b000000, 0x06001c00, 0x01000d00, 0x07000000, 0xc60f0000, 0xf2000000, 0x07000000, 0x00000d00, 0x07000000, 
-    0xc70f0000, 0xbd000000, 0x06001c00, 0x01000d00, 0x07000000, 0xc80f0000, 0x3c000000, 0x05003800, 0x01000d00, 0x07000000, 0xc90f0000, 0x42000000, 
-    0x05003800, 0x01000d00, 0x07000000, 0xca0f0000, 0x48000000, 0x05003800, 0x01000d00, 0x07000000, 0xcb0f0000, 0x4e000000, 0x05003800, 0x01000d00, 
-    0x07000000, 0xcc0f0000, 0xa4000000, 0x03004600, 0x02000d00, 0x07000000, 0xcd0f0000, 0xb0000000, 0x03004600, 0x02000d00, 0x07000000, 0xce0f0000, 
-    0xa8000000, 0x03004600, 0x02000d00, 0x07000000, 0xcf0f0000, 0xfc000000, 0x03001c00, 0x02000d00, 0x07000000, 0xd00f0000, 0xce000000, 0x07000e00, 
-    0x00000d00, 0x07000000, 0xd10f0000, 0xcb000000, 0x06001c00, 0x01000d00, 0x07000000, 0xd20f0000, 0xd2000000, 0x06001c00, 0x01000d00, 0x07000000, 
-    0xd30f0000, 0xd9000000, 0x06001c00, 0x01000d00, 0x07000000, 0xd40f0000, 0x2a000000, 0x06002a00, 0x01000d00, 0x07000000, 0xd50f0000, 0xe7000000, 
-    0x06001c00, 0x01000d00, 0x07000000, 0xd60f0000, 0xee000000, 0x06001c00, 0x01000d00, 0x07000000, 0xd70f0000, 0x7e000000, 0x05003800, 0x01000d00, 
-    0x07000000, 0xd80f0000, 0xf5000000, 0x06001c00, 0x01000d00, 0x07000000, 0xd90f0000, 0x00000000, 0x06002a00, 0x01000d00, 0x07000000, 0xda0f0000, 
-    0x07000000, 0x06002a00, 0x01000d00, 0x07000000, 0xdb0f0000, 0x0e000000, 0x06002a00, 0x01000d00, 0x07000000, 0xdc0f0000, 0x15000000, 0x06002a00, 
-    0x01000d00, 0x07000000, 0xdd0f0000, 0xd6000000, 0x07000e00, 0x00000d00, 0x07000000, 0xde0f0000, 0xa8000000, 0x05003800, 0x01000d00, 0x07000000, 
-    0xdf0f0000, 0xde000000, 0x07000e00, 0x00000d00, 0x07000000, 0xe00f0000, 0xb4000000, 0x05003800, 0x01000d00, 0x07000000, 0xe10f0000, 0xba000000, 
-    0x05003800, 0x01000d00, 0x07000000, 0xe20f0000, 0xc0000000, 0x05003800, 0x01000d00, 0x07000000, 0xe30f0000, 0xc6000000, 0x05003800, 0x01000d00, 
-    0x07000000, 0xe40f0000, 0xcc000000, 0x05003800, 0x01000d00, 0x07000000, 0xe50f0000, 0xd2000000, 0x05003800, 0x01000d00, 0x07000000, 0xe60f0000, 
-    0xb6000000, 0x07000e00, 0x00000d00, 0x07000000, 0xe70f0000, 0xde000000, 0x05003800, 0x01000d00, 0x07000000, 0xe80f0000, 0xe4000000, 0x05003800, 
-    0x01000d00, 0x07000000, 0xe90f0000, 0xea000000, 0x05003800, 0x01000d00, 0x07000000, 0xea0f0000, 0xf0000000, 0x05003800, 0x01000d00, 0x07000000, 
-    0xeb0f0000, 0xf6000000, 0x05003800, 0x01000d00, 0x07000000, 0xec0f0000, 0xf1000000, 0x02004600, 0x02000d00, 0x07000000, 0xed0f0000, 0xf4000000, 
-    0x02004600, 0x02000d00, 0x07000000, 0xee0f0000, 0xd0000000, 0x03004600, 0x02000d00, 0x07000000, 0xef0f0000, 0xd4000000, 0x03004600, 0x02000d00, 
-    0x07000000, 0xf00f0000, 0x00000000, 0x05004600, 0x01000d00, 0x07000000, 0xf10f0000, 0x06000000, 0x05004600, 0x01000d00, 0x07000000, 0xf20f0000, 
-    0x0c000000, 0x05004600, 0x01000d00, 0x07000000, 0xf30f0000, 0x12000000, 0x05004600, 0x01000d00, 0x07000000, 0xf40f0000, 0x18000000, 0x05004600, 
-    0x01000d00, 0x07000000, 0xf50f0000, 0x1e000000, 0x05004600, 0x01000d00, 0x07000000, 0xf60f0000, 0x24000000, 0x05004600, 0x01000d00, 0x07000000, 
-    0xf70f0000, 0x2a000000, 0x05004600, 0x01000d00, 0x07000000, 0xf80f0000, 0x30000000, 0x05004600, 0x01000d00, 0x07000000, 0xf90f0000, 0x36000000, 
-    0x05004600, 0x01000d00, 0x07000000, 0xfa0f0000, 0x3c000000, 0x05004600, 0x01000d00, 0x07000000, 0xfb0f0000, 0x42000000, 0x05004600, 0x01000d00, 
-    0x07000000, 0xfc0f0000, 0x48000000, 0x05004600, 0x01000d00, 0x07000000, 0xfd0f0000, 0x4e000000, 0x05004600, 0x01000d00, 0x07000000, 0xfe0f0000, 
-    0x54000000, 0x05004600, 0x01000d00, 0x07000000, 0xff0f0000, 0x5a000000, 0x05004600, 0x01000d00, 0x07000000, 0x000f0000, 
-};
+static unsigned int stb_decompress_length(unsigned char *input)
+{
+    return (input[8] << 24) + (input[9] << 16) + (input[10] << 8) + input[11];
+}
+
+static unsigned char *stb__barrier;
+static unsigned char *stb__barrier2;
+static unsigned char *stb__barrier3;
+static unsigned char *stb__barrier4;
+
+static unsigned char *stb__dout;
+static void stb__match(unsigned char *data, unsigned int length)
+{
+    // INVERSE of memmove... write each byte before copying the next...
+    assert (stb__dout + length <= stb__barrier);
+    if (stb__dout + length > stb__barrier) { stb__dout += length; return; }
+    if (data < stb__barrier4) { stb__dout = stb__barrier+1; return; }
+    while (length--) *stb__dout++ = *data++;
+}
+
+static void stb__lit(unsigned char *data, unsigned int length)
+{
+    assert (stb__dout + length <= stb__barrier);
+    if (stb__dout + length > stb__barrier) { stb__dout += length; return; }
+    if (data < stb__barrier2) { stb__dout = stb__barrier+1; return; }
+    memcpy(stb__dout, data, length);
+    stb__dout += length;
+}
+
+#define stb__in2(x)   ((i[x] << 8) + i[(x)+1])
+#define stb__in3(x)   ((i[x] << 16) + stb__in2((x)+1))
+#define stb__in4(x)   ((i[x] << 24) + stb__in3((x)+1))
+
+static unsigned char *stb_decompress_token(unsigned char *i)
+{
+    if (*i >= 0x20) { // use fewer if's for cases that expand small
+        if (*i >= 0x80)       stb__match(stb__dout-i[1]-1, i[0] - 0x80 + 1), i += 2;
+        else if (*i >= 0x40)  stb__match(stb__dout-(stb__in2(0) - 0x4000 + 1), i[2]+1), i += 3;
+        else /* *i >= 0x20 */ stb__lit(i+1, i[0] - 0x20 + 1), i += 1 + (i[0] - 0x20 + 1);
+    } else { // more ifs for cases that expand large, since overhead is amortized
+        if (*i >= 0x18)       stb__match(stb__dout-(stb__in3(0) - 0x180000 + 1), i[3]+1), i += 4;
+        else if (*i >= 0x10)  stb__match(stb__dout-(stb__in3(0) - 0x100000 + 1), stb__in2(3)+1), i += 5;
+        else if (*i >= 0x08)  stb__lit(i+2, stb__in2(0) - 0x0800 + 1), i += 2 + (stb__in2(0) - 0x0800 + 1);
+        else if (*i == 0x07)  stb__lit(i+3, stb__in2(1) + 1), i += 3 + (stb__in2(1) + 1);
+        else if (*i == 0x06)  stb__match(stb__dout-(stb__in3(1)+1), i[4]+1), i += 5;
+        else if (*i == 0x04)  stb__match(stb__dout-(stb__in3(1)+1), stb__in2(4)+1), i += 6;
+    }
+    return i;
+}
 
-void ImGui::GetDefaultFontData(const void** fnt_data, unsigned int* fnt_size, const void** png_data, unsigned int* png_size)
+static unsigned int stb_adler32(unsigned int adler32, unsigned char *buffer, unsigned int buflen)
 {
-    if (fnt_data) *fnt_data = (const void*)proggy_clean_13_fnt_data;
-    if (fnt_size) *fnt_size = proggy_clean_13_fnt_size;
-    if (png_data) *png_data = (const void*)proggy_clean_13_png_data;
-    if (png_size) *png_size = proggy_clean_13_png_size;
+    const unsigned long ADLER_MOD = 65521;
+    unsigned long s1 = adler32 & 0xffff, s2 = adler32 >> 16;
+    unsigned long blocklen, i;
+
+    blocklen = buflen % 5552;
+    while (buflen) {
+        for (i=0; i + 7 < blocklen; i += 8) {
+            s1 += buffer[0], s2 += s1;
+            s1 += buffer[1], s2 += s1;
+            s1 += buffer[2], s2 += s1;
+            s1 += buffer[3], s2 += s1;
+            s1 += buffer[4], s2 += s1;
+            s1 += buffer[5], s2 += s1;
+            s1 += buffer[6], s2 += s1;
+            s1 += buffer[7], s2 += s1;
+
+            buffer += 8;
+        }
+
+        for (; i < blocklen; ++i)
+            s1 += *buffer++, s2 += s1;
+
+        s1 %= ADLER_MOD, s2 %= ADLER_MOD;
+        buflen -= blocklen;
+        blocklen = 5552;
+    }
+    return (s2 << 16) + s1;
 }
 
+static unsigned int stb_decompress(unsigned char *output, unsigned char *i, unsigned int length)
+{
+    unsigned int olen;
+    if (stb__in4(0) != 0x57bC0000) return 0;
+    if (stb__in4(4) != 0)          return 0; // error! stream is > 4GB
+    olen = stb_decompress_length(i);
+    stb__barrier2 = i;
+    stb__barrier3 = i+length;
+    stb__barrier = output + olen;
+    stb__barrier4 = output;
+    i += 16;
+
+    stb__dout = output;
+    while (1) {
+        unsigned char *old_i = i;
+        i = stb_decompress_token(i);
+        if (i == old_i) {
+            if (*i == 0x05 && i[1] == 0xfa) {
+                assert(stb__dout == output + olen);
+                if (stb__dout != output + olen) return 0;
+                if (stb_adler32(1, output, olen) != (unsigned int) stb__in4(2))
+                    return 0;
+                return olen;
+            } else {
+                assert(0); /* NOTREACHED */
+                return 0;
+            }
+        }
+        assert(stb__dout <= output + olen); 
+        if (stb__dout > output + olen)
+            return 0;
+    }
+}
+
+static const unsigned int proggy_clean_ttf_compressed_size = 9583;
+static const unsigned int proggy_clean_ttf_compressed_data[9584/4] =
+{
+    0x0000bc57, 0x00000000, 0xf8a00000, 0x00000400, 0x00010037, 0x000c0000, 0x00030080, 0x2f534f40, 0x74eb8832, 0x01000090, 0x2c158248, 0x616d634e, 
+    0x23120270, 0x03000075, 0x241382a0, 0x74766352, 0x82178220, 0xfc042102, 0x02380482, 0x66796c67, 0x5689af12, 0x04070000, 0x80920000, 0x64616568, 
+    0xd36691d7, 0xcc201b82, 0x36210382, 0x27108268, 0xc3014208, 0x04010000, 0x243b0f82, 0x78746d68, 0x807e008a, 0x98010000, 0x06020000, 0x61636f6c, 
+    0xd8b0738c, 0x82050000, 0x0402291e, 0x7078616d, 0xda00ae01, 0x28201f82, 0x202c1082, 0x656d616e, 0x96bb5925, 0x84990000, 0x9e2c1382, 0x74736f70, 
+    0xef83aca6, 0x249b0000, 0xd22c3382, 0x70657270, 0x12010269, 0xf4040000, 0x08202f82, 0x012ecb84, 0x553c0000, 0x0f5fd5e9, 0x0300f53c, 0x00830008, 
+    0x7767b722, 0x002b3f82, 0xa692bd00, 0xfe0000d7, 0x83800380, 0x21f1826f, 0x00850002, 0x41820120, 0x40fec026, 0x80030000, 0x05821083, 0x07830120, 
+    0x0221038a, 0x24118200, 0x90000101, 0x82798200, 0x00022617, 0x00400008, 0x2009820a, 0x82098276, 0x82002006, 0x9001213b, 0x0223c883, 0x828a02bc, 
+    0x858f2010, 0xc5012507, 0x00023200, 0x04210083, 0x91058309, 0x6c412b03, 0x40007374, 0xac200000, 0x00830008, 0x01000523, 0x834d8380, 0x80032103, 
+    0x012101bf, 0x23b88280, 0x00800000, 0x0b830382, 0x07820120, 0x83800021, 0x88012001, 0x84002009, 0x2005870f, 0x870d8301, 0x2023901b, 0x83199501, 
+    0x82002015, 0x84802000, 0x84238267, 0x88002027, 0x8561882d, 0x21058211, 0x13880000, 0x01800022, 0x05850d85, 0x0f828020, 0x03208384, 0x03200582, 
+    0x47901b84, 0x1b850020, 0x1f821d82, 0x3f831d88, 0x3f410383, 0x84058405, 0x210982cd, 0x09830000, 0x03207789, 0xf38a1384, 0x01203782, 0x13872384, 
+    0x0b88c983, 0x0d898f84, 0x00202982, 0x23900383, 0x87008021, 0x83df8301, 0x86118d03, 0x863f880d, 0x8f35880f, 0x2160820f, 0x04830300, 0x1c220382, 
+    0x05820100, 0x4c000022, 0x09831182, 0x04001c24, 0x11823000, 0x0800082e, 0x00000200, 0xff007f00, 0xffffac20, 0x00220982, 0x09848100, 0xdf216682, 
+    0x843586d5, 0x06012116, 0x04400684, 0xa58120d7, 0x00b127d8, 0x01b88d01, 0x2d8685ff, 0xc100c621, 0xf4be0801, 0x9e011c01, 0x88021402, 0x1403fc02, 
+    0x9c035803, 0x1404de03, 0x50043204, 0xa2046204, 0x66051605, 0x1206bc05, 0xd6067406, 0x7e073807, 0x4e08ec07, 0x96086c08, 0x1009d008, 0x88094a09, 
+    0x800a160a, 0x560b040b, 0x2e0cc80b, 0xea0c820c, 0xa40d5e0d, 0x500eea0d, 0x280f960e, 0x1210b00f, 0xe0107410, 0xb6115211, 0x6e120412, 0x4c13c412, 
+    0xf613ac13, 0xae145814, 0x4015ea14, 0xa6158015, 0x1216b815, 0xc6167e16, 0x8e173417, 0x5618e017, 0xee18ba18, 0x96193619, 0x481ad419, 0xf01a9c1a, 
+    0xc81b5c1b, 0x4c1c041c, 0xea1c961c, 0x921d2a1d, 0x401ed21d, 0xe01e8e1e, 0x761f241f, 0xa61fa61f, 0x01821020, 0x8a202e34, 0xc820b220, 0x74211421, 
+    0xee219821, 0x86226222, 0x01820c23, 0x83238021, 0x23983c01, 0x24d823b0, 0x244a2400, 0x24902468, 0x250625ae, 0x25822560, 0x26f825f8, 0x82aa2658, 
+    0xd8be0801, 0x9a274027, 0x68280a28, 0x0e29a828, 0xb8292029, 0x362af829, 0x602a602a, 0x2a2b022b, 0xac2b5e2b, 0x202ce62b, 0x9a2c342c, 0x5c2d282d, 
+    0xaa2d782d, 0x262ee82d, 0x262fa62e, 0xf42fb62f, 0xc8305e30, 0xb4313e31, 0x9e321e32, 0x82331e33, 0x5c34ee33, 0x3a35ce34, 0xd4358635, 0x72362636, 
+    0x7637e636, 0x3a38d837, 0x1239a638, 0xae397439, 0x9a3a2e3a, 0x7c3b063b, 0x3a3ce83b, 0x223d963c, 0xec3d863d, 0xc63e563e, 0x9a3f2a3f, 0x6a401240, 
+    0x3641d040, 0x0842a241, 0x7a424042, 0xf042b842, 0xcc436243, 0x8a442a44, 0x5845ee44, 0xe245b645, 0xb4465446, 0x7a471447, 0x5448da47, 0x4049c648, 
+    0x15462400, 0x034d0808, 0x0b000700, 0x13000f00, 0x1b001700, 0x23001f00, 0x2b002700, 0x33002f00, 0x3b003700, 0x43003f00, 0x4b004700, 0x53004f00, 
+    0x5b005700, 0x63005f00, 0x6b006700, 0x73006f00, 0x7b007700, 0x83007f00, 0x8b008700, 0x00008f00, 0x15333511, 0x20039631, 0x20178205, 0xd3038221, 
+    0x20739707, 0x25008580, 0x028080fc, 0x05be8080, 0x04204a85, 0x05ce0685, 0x0107002a, 0x02000080, 0x00000400, 0x250d8b41, 0x33350100, 0x03920715, 
+    0x13820320, 0x858d0120, 0x0e8d0320, 0xff260d83, 0x00808000, 0x54820106, 0x04800223, 0x845b8c80, 0x41332059, 0x078b068f, 0x82000121, 0x82fe2039, 
+    0x84802003, 0x83042004, 0x23598a0e, 0x00180000, 0x03210082, 0x42ab9080, 0x73942137, 0x2013bb41, 0x8f978205, 0x2027a39b, 0x20b68801, 0x84b286fd, 
+    0x91c88407, 0x41032011, 0x11a51130, 0x15000027, 0x80ff8000, 0x11af4103, 0x841b0341, 0x8bd983fd, 0x9be99bc9, 0x8343831b, 0x21f1821f, 0xb58300ff, 
+    0x0f84e889, 0xf78a0484, 0x8000ff22, 0x0020eeb3, 0x14200082, 0x2130ef41, 0xeb431300, 0x4133200a, 0xd7410ecb, 0x9a07200b, 0x2027871b, 0x21238221, 
+    0xe7828080, 0xe784fd20, 0xe8848020, 0xfe808022, 0x08880d85, 0xba41fd20, 0x82248205, 0x85eab02a, 0x008022e7, 0x2cd74200, 0x44010021, 0xd34406eb, 
+    0x44312013, 0xcf8b0eef, 0x0d422f8b, 0x82332007, 0x0001212f, 0x8023cf82, 0x83000180, 0x820583de, 0x830682d4, 0x820020d4, 0x82dc850a, 0x20e282e9, 
+    0xb2ff85fe, 0x010327e9, 0x02000380, 0x0f440400, 0x0c634407, 0x68825982, 0x85048021, 0x260a825d, 0x010b0000, 0x4400ff00, 0x2746103f, 0x08d74209, 
+    0x4d440720, 0x0eaf4406, 0xc3441d20, 0x23078406, 0xff800002, 0x04845b83, 0x8d05b241, 0x1781436f, 0x6b8c87a5, 0x1521878e, 0x06474505, 0x01210783, 
+    0x84688c00, 0x8904828e, 0x441e8cf7, 0x0b270cff, 0x80008000, 0x45030003, 0xfb430fab, 0x080f4107, 0x410bf942, 0xd34307e5, 0x070d4207, 0x80800123, 
+    0x205d85fe, 0x849183fe, 0x20128404, 0x82809702, 0x00002217, 0x41839a09, 0x6b4408cf, 0x0733440f, 0x3b460720, 0x82798707, 0x97802052, 0x0000296f, 
+    0xff800004, 0x01800100, 0x0021ef89, 0x0a914625, 0x410a4d41, 0x00250ed4, 0x00050000, 0x056d4280, 0x210a7b46, 0x21481300, 0x46ed8512, 0x00210bd1, 
+    0x89718202, 0x21738877, 0x2b850001, 0x00220582, 0x87450a00, 0x0ddb4606, 0x41079b42, 0x9d420c09, 0x0b09420b, 0x8d820720, 0x9742fc84, 0x42098909, 
+    0x00241e0f, 0x00800014, 0x0b47da82, 0x0833442a, 0x49078d41, 0x2f450f13, 0x42278f17, 0x01200751, 0x22063742, 0x44808001, 0x20450519, 0x88068906, 
+    0x83fe2019, 0x4203202a, 0x1a941a58, 0x00820020, 0xe7a40e20, 0x420ce146, 0x854307e9, 0x0fcb4713, 0xff20a182, 0xfe209b82, 0x0c867f8b, 0x0021aea4, 
+    0x219fa40f, 0x7d41003b, 0x07194214, 0xbf440520, 0x071d4206, 0x6941a590, 0x80802309, 0x028900ff, 0xa9a4b685, 0xc5808021, 0x449b82ab, 0x152007eb, 
+    0x42134d46, 0x61440a15, 0x051e4208, 0x222b0442, 0x47001100, 0xfd412913, 0x17194714, 0x410f5b41, 0x02220773, 0x09428080, 0x21a98208, 0xd4420001, 
+    0x481c840d, 0x00232bc9, 0x42120000, 0xe74c261b, 0x149d4405, 0x07209d87, 0x410db944, 0x14421c81, 0x42fd2005, 0x80410bd2, 0x203d8531, 0x06874100, 
+    0x48256f4a, 0xcb420c95, 0x13934113, 0x44075d44, 0x044c0855, 0x00ff2105, 0xfe228185, 0x45448000, 0x22c5b508, 0x410c0000, 0x7b412087, 0x1bb74514, 
+    0x32429c85, 0x0a574805, 0x21208943, 0x8ba01300, 0x440dfb4e, 0x77431437, 0x245b4113, 0x200fb145, 0x41108ffe, 0x80203562, 0x00200082, 0x46362b42, 
+    0x1742178d, 0x4527830f, 0x0f830b2f, 0x4a138146, 0x802409a1, 0xfe8000ff, 0x94419982, 0x09294320, 0x04000022, 0x49050f4f, 0xcb470a63, 0x48032008, 
+    0x2b48067b, 0x85022008, 0x82638338, 0x00002209, 0x05af4806, 0x900e9f49, 0x84c5873f, 0x214285bd, 0x064900ff, 0x0c894607, 0x00000023, 0x4903820a, 
+    0x714319f3, 0x0749410c, 0x8a07a145, 0x02152507, 0xfe808000, 0x74490386, 0x8080211b, 0x0c276f82, 0x00018000, 0x48028003, 0x2b2315db, 0x43002f00, 
+    0x6f82142f, 0x44011521, 0x93510da7, 0x20e68508, 0x06494d80, 0x8e838020, 0x06821286, 0x124bff20, 0x25f3830c, 0x03800080, 0xe74a0380, 0x207b8715, 
+    0x876b861d, 0x4a152007, 0x07870775, 0xf6876086, 0x8417674a, 0x0a0021f2, 0x431c9743, 0x8d421485, 0x200b830b, 0x06474d03, 0x71828020, 0x04510120, 
+    0x42da8606, 0x1f831882, 0x001a0022, 0xff4d0082, 0x0b0f532c, 0x0d449b94, 0x4e312007, 0x074f12e7, 0x0bf3490b, 0xbb412120, 0x413f820a, 0xef490857, 
+    0x80002313, 0xe2830001, 0x6441fc20, 0x8b802006, 0x00012108, 0xfd201582, 0x492c9b48, 0x802014ff, 0x51084347, 0x0f4327f3, 0x17bf4a14, 0x201b7944, 
+    0x06964201, 0x134ffe20, 0x20d6830b, 0x25d78280, 0xfd800002, 0x05888000, 0x9318dc41, 0x21d282d4, 0xdb481800, 0x0dff542a, 0x45107743, 0xe14813f5, 
+    0x0f034113, 0x83135d45, 0x47b28437, 0xe4510e73, 0x21f58e06, 0x2b8400fd, 0x1041fcac, 0x08db4b0b, 0x421fdb41, 0xdf4b18df, 0x011d210a, 0x420af350, 
+    0x6e8308af, 0xac85cb86, 0x1e461082, 0x82b7a407, 0x411420a3, 0xa34130ab, 0x178f4124, 0x41139741, 0x86410d93, 0x82118511, 0x057243d8, 0x8941d9a4, 
+    0x3093480c, 0x4a13474f, 0xfb5016a9, 0x07ad4108, 0x4a0f9d42, 0xfe200fad, 0x4708aa41, 0x83482dba, 0x288f4d06, 0xb398c3bb, 0x44267b41, 0xb34439d7, 
+    0x0755410f, 0x200ebb45, 0x0f5f4215, 0x20191343, 0x06df5301, 0xf04c0220, 0x2ba64d07, 0x82050841, 0x430020ce, 0xa78f3627, 0x5213ff42, 0x2f970bc1, 
+    0x4305ab55, 0xa084111b, 0x450bac45, 0x5f4238b8, 0x010c2106, 0x0220ed82, 0x441bb344, 0x875010af, 0x0737480f, 0x490c5747, 0x0c840c03, 0x4c204b42, 
+    0x8ba905d7, 0x8b948793, 0x510c0c51, 0xfb4b24b9, 0x1b174107, 0x5709d74c, 0xd1410ca5, 0x079d480f, 0x201ff541, 0x06804780, 0x7d520120, 0x80002205, 
+    0x20a983fe, 0x47bb83fe, 0x1b8409b4, 0x81580220, 0x4e00202c, 0x4f41282f, 0x0eab4f17, 0x57471520, 0x0e0f4808, 0x8221e041, 0x3e1b4a8b, 0x4407175d, 
+    0x1b4b071f, 0x4a0f8b07, 0x174a0703, 0x0ba5411b, 0x430fb141, 0x0120057b, 0xfc20dd82, 0x4a056047, 0xf4850c0c, 0x01221982, 0x02828000, 0x1a5d088b, 
+    0x20094108, 0x8c0e3941, 0x4900200e, 0x7744434f, 0x200b870b, 0x0e4b5a33, 0x2b41f78b, 0x8b138307, 0x0b9f450b, 0x2406f741, 0xfd808001, 0x09475a00, 
+    0x84000121, 0x5980200e, 0x85450e5d, 0x832c8206, 0x4106831e, 0x00213814, 0x28b34810, 0x410c2f4b, 0x5f4a13d7, 0x0b2b4113, 0x6e43a883, 0x11174b05, 
+    0x4b066a45, 0xcc470541, 0x5000202b, 0xcb472f4b, 0x44b59f0f, 0xc5430b5b, 0x0d654907, 0x21065544, 0xd6828080, 0xfe201982, 0x8230ec4a, 0x120025c2, 
+    0x80ff8000, 0x4128d74d, 0x3320408b, 0x410a9f50, 0xdb822793, 0x822bd454, 0x61134b2e, 0x410b214a, 0xad4117c9, 0x0001211f, 0x4206854f, 0x4b430596, 
+    0x06bb5530, 0x2025cf46, 0x0ddd5747, 0x500ea349, 0x0f840fa7, 0x5213c153, 0x634e08d1, 0x0bbe4809, 0x59316e4d, 0x5b50053f, 0x203f6323, 0x5117eb46, 
+    0x94450a63, 0x246e410a, 0x63410020, 0x0bdb5f2f, 0x4233ab44, 0x39480757, 0x112d4a07, 0x7241118f, 0x000e2132, 0x9f286f41, 0x0f8762c3, 0x33350723, 
+    0x094e6415, 0x2010925f, 0x067252fe, 0xd0438020, 0x63a68225, 0x11203a4f, 0x480e6360, 0x5748131f, 0x079b521f, 0x200e2f43, 0x864b8315, 0x113348e7, 
+    0x85084e48, 0x06855008, 0x5880fd21, 0x7c420925, 0x0c414824, 0x37470c86, 0x1b8b422b, 0x5b0a8755, 0x23410c21, 0x0b83420b, 0x5a082047, 0xf482067f, 
+    0xa80b4c47, 0x0c0021cf, 0x20207b42, 0x0fb74100, 0x420b8744, 0xeb43076f, 0x0f6f420b, 0x4261fe20, 0x439aa00c, 0x215034e3, 0x0ff9570f, 0x4b1f2d5d, 
+    0x2d5d0c6f, 0x09634d0b, 0x1f51b8a0, 0x620f200c, 0xaf681e87, 0x24f94d07, 0x4e0f4945, 0xfe200c05, 0x22139742, 0x57048080, 0x23950c20, 0x97601585, 
+    0x4813201f, 0xad620523, 0x200f8f0f, 0x9e638f15, 0x00002181, 0x41342341, 0x0f930f0b, 0x210b4b62, 0x978f0001, 0xfe200f84, 0x8425c863, 0x2704822b, 
+    0x80000a00, 0x00038001, 0x610e9768, 0x834514bb, 0x0bc3430f, 0x2107e357, 0x80848080, 0x4400fe21, 0x2e410983, 0x00002a1a, 0x00000700, 0x800380ff, 
+    0x0fdf5800, 0x59150021, 0xd142163d, 0x0c02410c, 0x01020025, 0x65800300, 0x00240853, 0x1d333501, 0x15220382, 0x35420001, 0x44002008, 0x376406d7, 
+    0x096f6b19, 0x480bc142, 0x8f4908a7, 0x211f8b1f, 0x9e830001, 0x0584fe20, 0x4180fd21, 0x11850910, 0x8d198259, 0x000021d4, 0x5a08275d, 0x275d1983, 
+    0x06d9420e, 0x9f08b36a, 0x0f7d47b5, 0x8d8a2f8b, 0x4c0e0b57, 0xe7410e17, 0x42d18c1a, 0xb351087a, 0x1ac36505, 0x4b4a2f20, 0x0b9f450d, 0x430beb53, 
+    0xa7881015, 0xa5826a83, 0x80200f82, 0x86185a65, 0x4100208e, 0x176c3367, 0x0fe7650b, 0x4a17ad4b, 0x0f4217ed, 0x112e4206, 0x41113a42, 0xf7423169, 
+    0x0cb34737, 0x560f8b46, 0xa75407e5, 0x5f01200f, 0x31590c48, 0x80802106, 0x42268841, 0x0020091e, 0x4207ef64, 0x69461df7, 0x138d4114, 0x820f5145, 
+    0x53802090, 0xff200529, 0xb944b183, 0x417e8505, 0x00202561, 0x15210082, 0x42378200, 0x9b431cc3, 0x004f220d, 0x0dd54253, 0x4213f149, 0x7d41133b, 
+    0x42c9870b, 0x802010f9, 0x420b2c42, 0x8f441138, 0x267c4408, 0x600cb743, 0x8f4109d3, 0x05ab701d, 0x83440020, 0x3521223f, 0x0b794733, 0xfb62fe20, 
+    0x4afd2010, 0xaf410ae7, 0x25ce8525, 0x01080000, 0x7b6b0000, 0x0973710b, 0x82010021, 0x49038375, 0x33420767, 0x052c4212, 0x58464b85, 0x41fe2005, 
+    0x50440c27, 0x000c2209, 0x1cb36b80, 0x9b06df44, 0x0f93566f, 0x52830220, 0xfe216e8d, 0x200f8200, 0x0fb86704, 0xb057238d, 0x050b5305, 0x7217eb47, 
+    0xbd410b6b, 0x0f214610, 0x871f9956, 0x1e91567e, 0x2029b741, 0x20008200, 0x18b7410a, 0x27002322, 0x41095543, 0x0f8f0fb3, 0x41000121, 0x889d111c, 
+    0x14207b82, 0x00200382, 0x73188761, 0x475013a7, 0x6e33200c, 0x234e0ea3, 0x9b138313, 0x08e54d17, 0x9711094e, 0x2ee74311, 0x4908875e, 0xd75d1f1f, 
+    0x19ab5238, 0xa2084d48, 0x63a7a9b3, 0x55450b83, 0x0fd74213, 0x440d814c, 0x4f481673, 0x05714323, 0x13000022, 0x412e1f46, 0xdf493459, 0x21c7550f, 
+    0x8408215f, 0x201d49cb, 0xb1103043, 0x0f0d65d7, 0x452b8d41, 0x594b0f8d, 0x0b004605, 0xb215eb46, 0x000a24d7, 0x47000080, 0x002118cf, 0x06436413, 
+    0x420bd750, 0x2b500743, 0x076a470c, 0x4105c050, 0xd942053f, 0x0d00211a, 0x5f44779c, 0x0ce94805, 0x51558186, 0x14a54c0b, 0x49082b41, 0x0a4b0888, 
+    0x8080261f, 0x0d000000, 0x20048201, 0x1deb6a03, 0x420cb372, 0x07201783, 0x4306854d, 0x8b830c59, 0x59093c74, 0x0020250f, 0x67070f4a, 0x2341160b, 
+    0x00372105, 0x431c515d, 0x554e17ef, 0x0e5d6b05, 0x41115442, 0xb74a1ac1, 0x2243420a, 0x5b4f878f, 0x7507200f, 0x384b086f, 0x09d45409, 0x0020869a, 
+    0x12200082, 0xab460382, 0x10075329, 0x54138346, 0xaf540fbf, 0x1ea75413, 0x9a0c9e54, 0x0f6b44c1, 0x41000021, 0x47412a4f, 0x07374907, 0x5310bf76, 
+    0xff2009b4, 0x9a09a64c, 0x8200208d, 0x34c34500, 0x970fe141, 0x1fd74b0f, 0x440a3850, 0x206411f0, 0x27934609, 0x470c5d41, 0x555c2947, 0x1787540f, 
+    0x6e0f234e, 0x7d540a1b, 0x1d736b08, 0x0026a088, 0x80000e00, 0x9b5200ff, 0x08ef4318, 0x450bff77, 0x1d4d0b83, 0x081f7006, 0xcb691b86, 0x4b022008, 
+    0xc34b0b33, 0x1d0d4a0c, 0x8025a188, 0x0b000000, 0x52a38201, 0xbf7d0873, 0x0c234511, 0x8f0f894a, 0x4101200f, 0x0c880c9d, 0x2b418ea1, 0x06c74128, 
+    0x66181341, 0x7b4c0bb9, 0x0c06630b, 0xfe200c87, 0x9ba10882, 0x27091765, 0x01000008, 0x02800380, 0x48113f4e, 0x29430cf5, 0x09a75a0b, 0x31618020, 
+    0x6d802009, 0x61840e33, 0x8208bf51, 0x0c637d61, 0x7f092379, 0x4f470f4b, 0x1797510c, 0x46076157, 0xf5500fdf, 0x0f616910, 0x1171fe20, 0x82802006, 
+    0x08696908, 0x41127a4c, 0x3f4a15f3, 0x01042607, 0x0200ff00, 0x1cf77700, 0xff204185, 0x00235b8d, 0x43100000, 0x3b22243f, 0x3b4d3f00, 0x0b937709, 
+    0xad42f18f, 0x0b1f420f, 0x51084b43, 0x8020104a, 0xb557ff83, 0x052b7f2a, 0x0280ff22, 0x250beb78, 0x00170013, 0xbf6d2500, 0x07db760e, 0x410e2b7f, 
+    0x00230e4f, 0x49030000, 0x0582055b, 0x07000326, 0x00000b00, 0x580bcd46, 0x00200cdd, 0x57078749, 0x8749160f, 0x0f994f0a, 0x41134761, 0x01200b31, 
+    0xeb796883, 0x0b41500b, 0x0e90b38e, 0x202e7b51, 0x05d95801, 0x41080570, 0x1d530fc9, 0x0b937a0f, 0xaf8eb387, 0xf743b98f, 0x07c74227, 0x80000523, 
+    0x0fcb4503, 0x430ca37b, 0x7782077f, 0x8d0a9947, 0x08af4666, 0xeb798020, 0x6459881e, 0xc3740bbf, 0x0feb6f0b, 0x20072748, 0x052b6102, 0x435e0584, 
+    0x7d088308, 0x03200afd, 0x92109e41, 0x28aa8210, 0x80001500, 0x80030000, 0x0fdb5805, 0x209f4018, 0xa7418d87, 0x0aa3440f, 0x20314961, 0x073a52ff, 
+    0x6108505d, 0x43181051, 0x00223457, 0xe7820500, 0x50028021, 0x81410d33, 0x063d7108, 0xdb41af84, 0x4d888205, 0x00201198, 0x463d835f, 0x152106d7, 
+    0x0a355a33, 0x6917614e, 0x75411f4d, 0x184b8b07, 0x1809c344, 0x21091640, 0x0b828000, 0x42808021, 0x26790519, 0x86058605, 0x2428422d, 0x22123b42, 
+    0x42000080, 0xf587513b, 0x7813677b, 0xaf4d139f, 0x00ff210c, 0x5e0a1d57, 0x3b421546, 0x01032736, 0x02000380, 0x41180480, 0x2f420f07, 0x0c624807, 
+    0x00000025, 0x18000103, 0x83153741, 0x430120c3, 0x042106b2, 0x088d4d00, 0x2f830620, 0x1810434a, 0x18140345, 0x8507fb41, 0x5ee582ea, 0x0023116c, 
+    0x8d000600, 0x053b56af, 0xa6554fa2, 0x0d704608, 0x40180d20, 0x47181a43, 0xd37b07ff, 0x0b79500c, 0x420fd745, 0x47450bd9, 0x8471830a, 0x095a777e, 
+    0x84137542, 0x82002013, 0x2f401800, 0x0007213b, 0x4405e349, 0x0d550ff3, 0x16254c0c, 0x820ffe4a, 0x0400218a, 0x89066f41, 0x106b414f, 0xc84d0120, 
+    0x80802206, 0x0c9a4b03, 0x00100025, 0x68000200, 0x9d8c2473, 0x44134344, 0xf36a0f33, 0x4678860f, 0x1b440a25, 0x41988c0a, 0x80201879, 0x43079b5e, 
+    0x4a18080b, 0x0341190b, 0x1259530c, 0x43251552, 0x908205c8, 0x0cac4018, 0x86000421, 0x0e504aa2, 0x0020b891, 0xfb450082, 0x51132014, 0x8f5205f3, 
+    0x35052108, 0x8505cb59, 0x0f6d4f70, 0x82150021, 0x29af5047, 0x4f004b24, 0x75795300, 0x1b595709, 0x460b6742, 0xbf4b0f0d, 0x5743870b, 0xcb6d1461, 
+    0x08f64505, 0x4e05ab6c, 0x334126c3, 0x0bcb6b0d, 0x1811034d, 0x4111ef4b, 0x814f1ce5, 0x20af8227, 0x07fd7b80, 0x41188e84, 0xef410f33, 0x80802429, 
+    0x410d0000, 0xa34205ab, 0x76b7881c, 0xff500b89, 0x0741430f, 0x20086f4a, 0x209d8200, 0x234c18fd, 0x05d4670a, 0x4509af51, 0x9642078d, 0x189e831d, 
+    0x7c1cc74b, 0xcd4c07b9, 0x0e7c440f, 0x8b7b0320, 0x21108210, 0xc76c8080, 0x03002106, 0x6b23bf41, 0xc549060b, 0x7946180b, 0x0ff7530f, 0x17ad4618, 
+    0x200ecd45, 0x208c83fd, 0x5e0488fe, 0x032009c6, 0x420d044e, 0x0d8f0d7f, 0x00820020, 0x18001021, 0x6d273b45, 0xfd4c0c93, 0xcf451813, 0x0fe5450f, 
+    0x5a47c382, 0x820a8b0a, 0x282b4998, 0x410a8b5b, 0x4b232583, 0x54004f00, 0x978f0ce3, 0x500f1944, 0xa95f1709, 0x0280220b, 0x05ba7080, 0xa1530682, 
+    0x06324c13, 0x91412582, 0x05536e2c, 0x63431020, 0x0f434706, 0x8c11374c, 0x176143d7, 0x4d0f454c, 0xd3680bed, 0x0bee4d17, 0x212b9a41, 0x0f530a00, 
+    0x140d531c, 0x43139143, 0x95610e8d, 0x0f094415, 0x4205fb56, 0x1b4205cf, 0x17015225, 0x5e0c477f, 0xaf6e0aeb, 0x0ff36218, 0x04849a84, 0x0a454218, 
+    0x9c430420, 0x23c6822b, 0x04000102, 0x45091b4b, 0xf05f0955, 0x82802007, 0x421c2023, 0x5218282b, 0x7b53173f, 0x0fe7480c, 0x74173b7f, 0x47751317, 
+    0x634d1807, 0x0f6f430f, 0x24086547, 0xfc808002, 0x0b3c7f80, 0x10840120, 0x188d1282, 0x20096b43, 0x0fc24403, 0x00260faf, 0x0180000b, 0x3f500280, 
+    0x18002019, 0x450b4941, 0xf3530fb9, 0x18002010, 0x8208a551, 0x06234d56, 0xcb58a39b, 0xc3421805, 0x1313461e, 0x0f855018, 0xd34b0120, 0x6cfe2008, 
+    0x574f0885, 0x09204114, 0x07000029, 0x00008000, 0x44028002, 0x01420f57, 0x10c95c10, 0x11184c18, 0x80221185, 0x7f421e00, 0x00732240, 0x09cd4977, 
+    0x6d0b2b42, 0x4f180f8f, 0x8f5a0bcb, 0x9b0f830f, 0x0fb9411f, 0x230b5756, 0x00fd8080, 0x82060745, 0x000121d5, 0x8e0fb277, 0x4a8d4211, 0x24061c53, 
+    0x04000007, 0x12275280, 0x430c954c, 0x80201545, 0x200f764f, 0x20008200, 0x20ce8308, 0x09534f02, 0x660edf64, 0x73731771, 0xe7411807, 0x20a2820c, 
+    0x13b64404, 0x8f5d6682, 0x1d6b4508, 0x0cff4d18, 0x3348c58f, 0x0fc34c07, 0x31558b84, 0x8398820f, 0x17514712, 0x240b0e46, 0x80000a00, 0x093b4502, 
+    0x420f9759, 0xa54c0bf1, 0x0f2b470c, 0x410d314b, 0x2584170c, 0x73b30020, 0xb55fe782, 0x204d8410, 0x08e043fe, 0x4f147e41, 0x022008ab, 0x4b055159, 
+    0x2950068f, 0x00022208, 0x48511880, 0x82002009, 0x00112300, 0x634dff00, 0x24415f27, 0x180f6d43, 0x4d0b5d45, 0x4d5f05ef, 0x01802317, 0x56188000, 
+    0xa7840807, 0xc6450220, 0x21ca8229, 0x4b781a00, 0x3359182c, 0x0cf3470f, 0x180bef46, 0x420b0354, 0xff470b07, 0x4515200a, 0x9758239b, 0x4a80200c, 
+    0xd2410a26, 0x05fb4a08, 0x4b05e241, 0x03200dc9, 0x92290941, 0x00002829, 0x00010900, 0x5b020001, 0x23201363, 0x460d776a, 0xef530fdb, 0x209a890c, 
+    0x13fc4302, 0x00008024, 0xc4820104, 0x08820220, 0x20086b5b, 0x18518700, 0x8408d349, 0x0da449a1, 0x00080024, 0x7b690280, 0x4c438b1a, 0x01220f63, 
+    0x4c878000, 0x5c149c53, 0xfb430868, 0x2f56181e, 0x0ccf7b1b, 0x0f075618, 0x2008e347, 0x14144104, 0x00207f83, 0x00207b82, 0x201adf47, 0x16c35a13, 
+    0x540fdf47, 0x802006c8, 0x5418f185, 0x29430995, 0x00002419, 0x58001600, 0x5720316f, 0x4d051542, 0x4b7b1b03, 0x138f4707, 0xb747b787, 0x4aab8213, 
+    0x058305fc, 0x20115759, 0x82128401, 0x0a0b44e8, 0x46800121, 0xe64210d0, 0x82129312, 0x4bffdffe, 0x3b41171b, 0x9b27870f, 0x808022ff, 0x085c68fe, 
+    0x41800021, 0x01410b20, 0x001a213a, 0x47480082, 0x11374e12, 0x56130b4c, 0xdf4b0c65, 0x0b0f590b, 0x0f574c18, 0x830feb4b, 0x075f480f, 0x480b4755, 
+    0x40490b73, 0x80012206, 0x09d74280, 0x80fe8022, 0x80210e86, 0x056643ff, 0x10820020, 0x420b2646, 0x0b58391a, 0xd74c1808, 0x078b4e22, 0x2007f55f, 
+    0x4b491807, 0x83802017, 0x65aa82a7, 0x3152099e, 0x068b7616, 0x9b431220, 0x09bb742c, 0x500e376c, 0x8342179b, 0x0a4d5d0f, 0x8020a883, 0x180cd349, 
+    0x2016bb4b, 0x14476004, 0x84136c43, 0x08cf7813, 0x4f4c0520, 0x156f420f, 0x20085f42, 0x6fd3be03, 0xd4d30803, 0xa7411420, 0x004b222c, 0x0d3b614f, 
+    0x3f702120, 0x1393410a, 0x8f132745, 0x47421827, 0x41e08209, 0xb05e2bb9, 0x18b7410c, 0x18082647, 0x4107a748, 0xeb8826bf, 0x0ca76018, 0x733ecb41, 
+    0xd0410d83, 0x43ebaf2a, 0x0420067f, 0x721dab4c, 0x472005bb, 0x4105d341, 0x334844cb, 0x20dba408, 0x47d6ac00, 0x034e3aef, 0x0f8f421b, 0x930f134d, 
+    0x3521231f, 0xb7421533, 0x42f5ad0a, 0x1e961eaa, 0x17000022, 0x4c367b50, 0x7d491001, 0x0bf5520f, 0x4c18fda7, 0xb8460c55, 0x83fe2005, 0x00fe25b9, 
+    0x80000180, 0x9e751085, 0x261b5c12, 0x82110341, 0x001123fb, 0x4518fe80, 0xf38c2753, 0x6d134979, 0x295107a7, 0xaf5f180f, 0x0fe3660c, 0x180b6079, 
+    0x2007bd5f, 0x9aab9103, 0x2f4d1811, 0x05002109, 0x44254746, 0x1d200787, 0x450bab75, 0x4f180f57, 0x4f181361, 0x3b831795, 0xeb4b0120, 0x0b734805, 
+    0x84078f48, 0x2e1b47bc, 0x00203383, 0xaf065f45, 0x831520d7, 0x130f51a7, 0x1797bf97, 0x2b47d783, 0x18fe2005, 0x4a18a44f, 0xa64d086d, 0x1ab0410d, 
+    0x6205a258, 0xdbab069f, 0x4f06f778, 0xa963081d, 0x133b670a, 0x8323d141, 0x13195b23, 0x530f5e70, 0xe5ad0824, 0x58001421, 0x1f472b4b, 0x47bf410c, 
+    0x82000121, 0x83fe20cb, 0x07424404, 0x68068243, 0xd7ad0d3d, 0x00010d26, 0x80020000, 0x4a1c6f43, 0x23681081, 0x10a14f13, 0x8a070e57, 0x430a848f, 
+    0x7372243e, 0x4397a205, 0xb56c1021, 0x43978f0f, 0x64180505, 0x99aa0ff2, 0x0e000022, 0x20223341, 0x094b4f37, 0x074a3320, 0x2639410a, 0xfe208e84, 
+    0x8b0e0048, 0x508020a3, 0x9e4308fe, 0x073f4115, 0xe3480420, 0x0c9b5f1b, 0x7c137743, 0x9a95185b, 0x6122b148, 0x979b08df, 0x0fe36c18, 0x48109358, 
+    0x23441375, 0x0ffd5c0b, 0x180fc746, 0x2011d157, 0x07e95702, 0x58180120, 0x18770ac3, 0x51032008, 0x7d4118e3, 0x80802315, 0x3b4c1900, 0xbb5a1830, 
+    0x0ceb6109, 0x5b0b3d42, 0x4f181369, 0x4f180b8d, 0x4f180f75, 0x355a1b81, 0x200d820d, 0x18e483fd, 0x4528854f, 0x89420846, 0x1321411f, 0x44086b60, 
+    0x07421d77, 0x107d4405, 0x4113fd41, 0x5a181bf1, 0x4f180db3, 0x8021128f, 0x20f68280, 0x44a882fe, 0x334d249a, 0x052f6109, 0x1520c3a7, 0xef4eb783, 
+    0x4ec39b1b, 0xc4c90ee7, 0x20060b4d, 0x256f4905, 0x4d0cf761, 0xcf9b1f13, 0xa213d74e, 0x0e1145d4, 0x50135b42, 0xcb4e398f, 0x20d79f27, 0x08865d80, 
+    0x186d5018, 0xa90f7142, 0x067342d7, 0x3f450420, 0x65002021, 0xe3560771, 0x24d38f23, 0x15333531, 0x0eb94d01, 0x451c9f41, 0x384322fb, 0x00092108, 
+    0x19af6b18, 0x6e0c6f5a, 0xbd770bfb, 0x22bb7718, 0x20090f57, 0x25e74204, 0x4207275a, 0xdb5408ef, 0x1769450f, 0x1b1b5518, 0x210b1f57, 0x5e4c8001, 
+    0x55012006, 0x802107f1, 0x0a306a80, 0x45808021, 0x0d850b88, 0x31744f18, 0x1808ec54, 0x2009575b, 0x45ffa505, 0x1b420c73, 0x180f9f0f, 0x4a0cf748, 
+    0x501805b2, 0x00210f40, 0x4d118f80, 0xd6823359, 0x072b5118, 0x314ad7aa, 0x8fc79f08, 0x45d78b1f, 0xfe20058f, 0x23325118, 0x7b54d9b5, 0x9fc38f46, 
+    0x10bb410f, 0x41077b42, 0xc1410faf, 0x27cf441d, 0x46051b4f, 0x04200683, 0x2121d344, 0x8f530043, 0x8fcf9f0e, 0x21df8c1f, 0x50188000, 0x5d180e52, 
+    0xfd201710, 0x4405c341, 0xd68528e3, 0x20071f6b, 0x1b734305, 0x6b080957, 0x7d422b1f, 0x67002006, 0x7f8317b1, 0x2024cb48, 0x08676e00, 0x8749a39b, 
+    0x18132006, 0x410a6370, 0x8f490b47, 0x7e1f8f13, 0x551805c3, 0x4c180915, 0xfe200e2f, 0x244d5d18, 0x270bcf44, 0xff000019, 0x04800380, 0x5f253342, 
+    0xff520df7, 0x13274c18, 0x5542dd93, 0x0776181b, 0xf94a1808, 0x084a4c0c, 0x4308ea5b, 0xde831150, 0x7900fd21, 0x00492c1e, 0x060f4510, 0x17410020, 
+    0x0ce74526, 0x6206b341, 0x1f561083, 0x9d6c181b, 0x08a0500e, 0x112e4118, 0x60000421, 0xbf901202, 0x4408e241, 0xc7ab0513, 0xb40f0950, 0x055943c7, 
+    0x4f18ff20, 0xc9ae1cad, 0x32b34f18, 0x7a180120, 0x3d520a05, 0x53d1b40a, 0x80200813, 0x1b815018, 0x832bf86f, 0x67731847, 0x297f4308, 0x6418d54e, 
+    0x734213f7, 0x056b4b27, 0xdba5fe20, 0x1828aa4e, 0x2031a370, 0x06cb6101, 0x2040ad41, 0x07365300, 0x2558d985, 0x83fe200c, 0x0380211c, 0x542c4743, 
+    0x052006b7, 0x6021df45, 0x897b0707, 0x18d3c010, 0x20090e70, 0x1d5843ff, 0x540a0e44, 0x002126c5, 0x322f7416, 0x636a5720, 0x0f317409, 0x610fe159, 
+    0x294617e7, 0x08555213, 0x2006a75d, 0x6cec84fd, 0xfb5907be, 0x3a317405, 0x83808021, 0x180f20ea, 0x4626434a, 0x531818e3, 0xdb59172d, 0x0cbb460c, 
+    0x2013d859, 0x18b94502, 0x8f46188d, 0x77521842, 0x0a184e38, 0x9585fd20, 0x6a180684, 0xc64507e9, 0x51cbb230, 0xd3440cf3, 0x17ff6a0f, 0x450f5b42, 
+    0x276407c1, 0x4853180a, 0x21ccb010, 0xcf580013, 0x0c15442d, 0x410a1144, 0x1144359d, 0x5cfe2006, 0xa1410a43, 0x2bb64519, 0x2f5b7618, 0xb512b745, 
+    0x0cfd6fd1, 0x42089f59, 0xb8450c70, 0x0000232d, 0x50180900, 0xb9491ae3, 0x0fc37610, 0x01210f83, 0x0f3b4100, 0xa01b2742, 0x0ccd426f, 0x6e8f6f94, 
+    0x9c808021, 0xc7511870, 0x17c74b08, 0x9b147542, 0x44fe2079, 0xd5480c7e, 0x95ef861d, 0x101b597b, 0xf5417594, 0x9f471808, 0x86868d0e, 0x3733491c, 
+    0x690f4d6d, 0x43440b83, 0x1ba94c0b, 0x660cd16b, 0x802008ae, 0x74126448, 0xcb4f38a3, 0x2cb74b0b, 0x47137755, 0xe3971777, 0x1b5d0120, 0x057a4108, 
+    0x6e08664d, 0x17421478, 0x11af4208, 0x850c3f42, 0x08234f0c, 0x4321eb4a, 0xf3451095, 0x0f394e0f, 0x4310eb45, 0xc09707b1, 0x54431782, 0xaec08d1d, 
+    0x0f434dbb, 0x9f0c0b45, 0x0a3b4dbb, 0x4618bdc7, 0x536032eb, 0x17354213, 0x4d134169, 0xc7a30c2f, 0x4e254342, 0x174332cf, 0x43cdae17, 0x6b4706e4, 
+    0x0e16430d, 0x530b5542, 0x2f7c26bb, 0x13075f31, 0x43175342, 0x60181317, 0x6550114e, 0x28624710, 0x58070021, 0x59181683, 0x2d540cf5, 0x05d5660c, 
+    0x20090c7b, 0x0e157e02, 0x8000ff2b, 0x14000080, 0x80ff8000, 0x27137e03, 0x336a4b20, 0x0f817107, 0x13876e18, 0x730f2f7e, 0x2f450b75, 0x6d02200b, 
+    0x6d66094c, 0x4b802009, 0x15820a02, 0x2f45fe20, 0x5e032006, 0x00202fd9, 0x450af741, 0xeb412e0f, 0x0ff3411f, 0x420a8b65, 0xf7410eae, 0x1c664810, 
+    0x540e1145, 0xbfa509f3, 0x42302f58, 0x80200c35, 0xcb066c47, 0x4b1120c1, 0x41492abb, 0x34854110, 0xa7097b72, 0x251545c7, 0x4b2c7f56, 0xc5b40bab, 
+    0x940cd54e, 0x2e6151c8, 0x09f35f18, 0x4b420420, 0x09677121, 0x8f24f357, 0x1b5418e1, 0x08915a1f, 0x3143d894, 0x22541805, 0x1b9b4b0e, 0x8c0d3443, 
+    0x1400240d, 0x18ff8000, 0x582e6387, 0xf99b2b3b, 0x8807a550, 0x17a14790, 0x2184fd20, 0x5758fe20, 0x2354882c, 0x15000080, 0x5e056751, 0x334c2c2f, 
+    0x97c58f0c, 0x1fd7410f, 0x0d4d4018, 0x4114dc41, 0x04470ed6, 0x0dd54128, 0x00820020, 0x02011523, 0x22008700, 0x86480024, 0x0001240a, 0x8682001a, 
+    0x0002240b, 0x866c000e, 0x8a03200b, 0x8a042017, 0x0005220b, 0x22218614, 0x84060000, 0x86012017, 0x8212200f, 0x250b8519, 0x000d0001, 0x0b850031, 
+    0x07000224, 0x0b862600, 0x11000324, 0x0b862d00, 0x238a0420, 0x0a000524, 0x17863e00, 0x17840620, 0x01000324, 0x57820904, 0x0b85a783, 0x0b85a785, 
+    0x0b85a785, 0x22000325, 0x85007a00, 0x85a7850b, 0x85a7850b, 0x22a7850b, 0x82300032, 0x00342201, 0x0805862f, 0x35003131, 0x54207962, 0x74736972, 
+    0x47206e61, 0x6d6d6972, 0x65527265, 0x616c7567, 0x58545472, 0x6f725020, 0x43796767, 0x6e61656c, 0x30325454, 0x822f3430, 0x35313502, 0x79006200, 
+    0x54002000, 0x69007200, 0x74007300, 0x6e006100, 0x47200f82, 0x6d240f84, 0x65006d00, 0x52200982, 0x67240582, 0x6c007500, 0x72201d82, 0x54222b82, 
+    0x23825800, 0x19825020, 0x67006f22, 0x79220182, 0x1b824300, 0x3b846520, 0x1f825420, 0x41000021, 0x1422099b, 0x0b410000, 0x87088206, 0x01012102, 
+    0x78080982, 0x01020101, 0x01040103, 0x01060105, 0x01080107, 0x010a0109, 0x010c010b, 0x010e010d, 0x0110010f, 0x01120111, 0x01140113, 0x01160115, 
+    0x01180117, 0x011a0119, 0x011c011b, 0x011e011d, 0x0020011f, 0x00040003, 0x00060005, 0x00080007, 0x000a0009, 0x000c000b, 0x000e000d, 0x0010000f, 
+    0x00120011, 0x00140013, 0x00160015, 0x00180017, 0x001a0019, 0x001c001b, 0x001e001d, 0x08bb821f, 0x22002142, 0x24002300, 0x26002500, 0x28002700, 
+    0x2a002900, 0x2c002b00, 0x2e002d00, 0x30002f00, 0x32003100, 0x34003300, 0x36003500, 0x38003700, 0x3a003900, 0x3c003b00, 0x3e003d00, 0x40003f00, 
+    0x42004100, 0x4b09f382, 0x00450044, 0x00470046, 0x00490048, 0x004b004a, 0x004d004c, 0x004f004e, 0x00510050, 0x00530052, 0x00550054, 0x00570056, 
+    0x00590058, 0x005b005a, 0x005d005c, 0x005f005e, 0x01610060, 0x01220121, 0x01240123, 0x01260125, 0x01280127, 0x012a0129, 0x012c012b, 0x012e012d, 
+    0x0130012f, 0x01320131, 0x01340133, 0x01360135, 0x01380137, 0x013a0139, 0x013c013b, 0x013e013d, 0x0140013f, 0x00ac0041, 0x008400a3, 0x00bd0085, 
+    0x00e80096, 0x008e0086, 0x009d008b, 0x00a400a9, 0x008a00ef, 0x008300da, 0x00f20093, 0x008d00f3, 0x00880097, 0x00de00c3, 0x009e00f1, 0x00f500aa, 
+    0x00f600f4, 0x00ad00a2, 0x00c700c9, 0x006200ae, 0x00900063, 0x00cb0064, 0x00c80065, 0x00cf00ca, 0x00cd00cc, 0x00e900ce, 0x00d30066, 0x00d100d0, 
+    0x006700af, 0x009100f0, 0x00d400d6, 0x006800d5, 0x00ed00eb, 0x006a0089, 0x006b0069, 0x006c006d, 0x00a0006e, 0x0071006f, 0x00720070, 0x00750073, 
+    0x00760074, 0x00ea0077, 0x007a0078, 0x007b0079, 0x007c007d, 0x00a100b8, 0x007e007f, 0x00810080, 0x00ee00ec, 0x6e750eba, 0x646f6369, 0x78302365, 
+    0x31303030, 0x32200e8d, 0x33200e8d, 0x34200e8d, 0x35200e8d, 0x36200e8d, 0x37200e8d, 0x38200e8d, 0x39200e8d, 0x61200e8d, 0x62200e8d, 0x63200e8d, 
+    0x64200e8d, 0x65200e8d, 0x66200e8d, 0x31210e8c, 0x8d0e8d30, 0x8d3120ef, 0x8d3120ef, 0x8d3120ef, 0x8d3120ef, 0x8d3120ef, 0x8d3120ef, 0x8d3120ef, 
+    0x8d3120ef, 0x8d3120ef, 0x8d3120ef, 0x8d3120ef, 0x8d3120ef, 0x8d3120ef, 0x66312def, 0x6c656406, 0x04657465, 0x6f727545, 0x3820ec8c, 0x3820ec8d, 
+    0x3820ec8d, 0x3820ec8d, 0x3820ec8d, 0x3820ec8d, 0x3820ec8d, 0x3820ec8d, 0x3820ec8d, 0x3820ec8d, 0x3820ec8d, 0x3820ec8d, 0x3820ec8d, 0x3820ec8d, 
+    0x3820ec8d, 0x200ddc41, 0x0ddc4139, 0xef8d3920, 0xef8d3920, 0xef8d3920, 0xef8d3920, 0xef8d3920, 0xef8d3920, 0xef8d3920, 0xef8d3920, 0xef8d3920, 
+    0xef8d3920, 0xef8d3920, 0xef8d3920, 0xef8d3920, 0xef8d3920, 0x00663923, 0x48fa0500, 0x00f762f9, 
+};
+
 //-----------------------------------------------------------------------------
 
 //---- Include imgui_user.inl at the end of imgui.cpp

imgui.h

@@ -1,4 +1,4 @@
-// ImGui library v1.20
+// ImGui library v1.30 wip
 // See .cpp file for commentary.
 // See ImGui::ShowTestWindow() for sample code.
 // Read 'Programmer guide' in .cpp for notes on how to setup ImGui in your codebase.
@@ -129,7 +129,7 @@ public:
 // - struct ImGuiTextBuffer             // Text buffer for logging/accumulating text
 // - struct ImGuiStorage                // Custom key value storage (if you need to alter open/close states manually)
 // - struct ImDrawList                  // Draw command list
-// - struct ImFont                      // Bitmap font loader
+// - struct ImFont                      // TTF font loader, bake glyphs into bitmap
 
 // ImGui End-user API
 // In a namespace so that user can add extra functions (e.g. Value() helpers for your vector or common types)
@@ -309,7 +309,6 @@ namespace ImGui
     IMGUI_API float         GetTime();
     IMGUI_API int           GetFrameCount();
     IMGUI_API const char*   GetStyleColName(ImGuiCol idx);
-    IMGUI_API void          GetDefaultFontData(const void** fnt_data, unsigned int* fnt_size, const void** png_data, unsigned int* png_size);
     IMGUI_API ImVec2        CalcTextSize(const char* text, const char* text_end = NULL, bool hide_text_after_double_hash = false, float wrap_width = -1.0f);
 
 } // namespace ImGui
@@ -729,97 +728,59 @@ struct ImDrawList
     IMGUI_API void  AddText(ImFont* font, float font_size, const ImVec2& pos, ImU32 col, const char* text_begin, const char* text_end = NULL, float wrap_width = 0.0f);
 };
 
-// Bitmap font data loader & renderer into vertices
-// Using the .fnt format exported by BMFont
-//  - tool: http://www.angelcode.com/products/bmfont
-//  - file-format: http://www.angelcode.com/products/bmfont/doc/file_format.html
-// Assume valid file data (won't handle invalid/malicious data)
-// Handle a subset of the options, namely:
-//  - kerning pair are not supported (because some ImGui code does per-character CalcTextSize calls, need to turn it into something more state-ful to allow for kerning)
+// TTF font loading and rendering
+// NB: kerning pair are not supported (because some ImGui code does per-character CalcTextSize calls, need to turn it into something more state-ful to allow for kerning)
 struct ImFont
 {
-    struct FntInfo;
-    struct FntCommon;
-    struct FntGlyph;
-    struct FntKerning;
-
     // Settings
-    float                       Scale;              // = 1.0f          // Base font scale, multiplied by the per-window font scale which you can adjust with SetFontScale()
-    ImVec2                      DisplayOffset;      // = (0.0f,0.0f)   // Offset font rendering by xx pixels
-    ImVec2                      TexUvForWhite;      // = (0.0f,0.0f)   // Font texture must have a white pixel at this UV coordinate. Adjust if you are using custom texture.
-    ImWchar                     FallbackChar;       // = '?'           // Replacement glyph is one isn't found.
-
-    // Data
-    unsigned char*              Data;               // Raw data, content of .fnt file
-    size_t                      DataSize;           //
-    bool                        DataOwned;          // 
-    const FntInfo*              Info;               // (point into raw data)
-    const FntCommon*            Common;             // (point into raw data)
-    const FntGlyph*             Glyphs;             // (point into raw data)
-    size_t                      GlyphsCount;        //
-    const FntKerning*           Kerning;            // (point into raw data) - NB: kerning is unsupported
-    size_t                      KerningCount;       //
-    ImVector<const char*>       Filenames;          // (point into raw data)
-    ImVector<int>               IndexLookup;        // (built)
-    const FntGlyph*             FallbackGlyph;      // == FindGlyph(FontFallbackChar)
-
-    IMGUI_API ImFont();
-    IMGUI_API ~ImFont()         { Clear(); }
-
-    IMGUI_API bool              LoadFromMemory(const void* data, size_t data_size);
-    IMGUI_API bool              LoadFromFile(const char* filename);
-    IMGUI_API void              Clear();
-    IMGUI_API void              BuildLookupTable();
-    IMGUI_API const FntGlyph*   FindGlyph(unsigned short c) const;
-    IMGUI_API bool              IsLoaded() const { return Info != NULL && Common != NULL && Glyphs != NULL; }
-
-    // 'max_width' stops rendering after a certain width (could be turned into a 2d size). FLT_MAX to disable.
-    // 'wrap_width' enable automatic word-wrapping across multiple lines to fit into given width. 0.0f to disable.
-    IMGUI_API ImVec2            CalcTextSizeA(float size, float max_width, float wrap_width, const char* text_begin, const char* text_end = NULL, const char** remaining = NULL) const; // utf8
-    IMGUI_API ImVec2            CalcTextSizeW(float size, float max_width, const ImWchar* text_begin, const ImWchar* text_end, const ImWchar** remaining = NULL) const;                 // wchar
-    IMGUI_API void              RenderText(float size, ImVec2 pos, ImU32 col, const ImVec4& clip_rect, const char* text_begin, const char* text_end, ImDrawVert*& out_vertices, float wrap_width = 0.0f) const;
-
-    IMGUI_API const char*       CalcWordWrapPositionA(float scale, const char* text, const char* text_end, float wrap_width) const;
-
-#pragma pack(push, 1)
-    struct FntInfo
+    float               Scale;              // = 1.0f          // Base font scale, multiplied by the per-window font scale which you can adjust with SetFontScale()
+    ImVec2              DisplayOffset;      // = (0.0f,0.0f)   // Offset font rendering by xx pixels
+    ImWchar             FallbackChar;       // = '?'           // Replacement glyph if one isn't found.
+
+    // Texture data
+    unsigned char*      TexPixels;          // 1 byte, 1 component per pixel. Total byte size of TexWidth * TexHeight
+    int                 TexWidth;
+    int                 TexHeight;
+    ImVec2              TexExtraDataPos;    // Position of our rectangle where we draw non-font graphics
+    ImVec2              TexUvWhitePixel;    // Texture coordinates to a white pixel (part of the TexExtraData block)
+
+    struct Glyph
     {
-        signed short    FontSize;
-        unsigned char   BitField;       // bit 0: smooth, bit 1: unicode, bit 2: italic, bit 3: bold, bit 4: fixedHeight, bits 5-7: reserved
-        unsigned char   CharSet;
-        unsigned short  StretchH;
-        unsigned char   AA;
-        unsigned char   PaddingUp, PaddingRight, PaddingDown, PaddingLeft;
-        unsigned char   SpacingHoriz, SpacingVert, Outline;
-        //char          FontName[];
+        ImWchar         Codepoint;
+        signed short    XAdvance;
+        signed short    Width, Height;
+        signed short    XOffset, YOffset;
+        float           U0, V0, U1, V1;     // Texture coordinates
     };
 
-    struct FntCommon
-    {
-        unsigned short  LineHeight, Base;
-        unsigned short  ScaleW, ScaleH;
-        unsigned short  Pages;
-        unsigned char   BitField;
-        unsigned char   Channels[4];
-    };
+    // Runtime data
+    float               FontSize;           // Height of characters
+    ImVector<Glyph>     Glyphs;
+    ImVector<int>       IndexLookup;
+    const Glyph*        FallbackGlyph;      // == FindGlyph(FontFallbackChar)
 
-    struct FntGlyph
-    {
-        unsigned int    Id;
-        unsigned short  X, Y, Width, Height;
-        signed short    XOffset, YOffset;
-        signed short    XAdvance;
-        unsigned char   Page;
-        unsigned char   Channel;
-    };
+    // Methods
+    IMGUI_API ImFont();
+    IMGUI_API ~ImFont();
+    IMGUI_API bool                  LoadDefault();
+    IMGUI_API bool                  LoadFromFileTTF(const char* filename, float size_pixels, const ImWchar* glyph_ranges = NULL, int font_no = 0);
+    IMGUI_API bool                  LoadFromMemoryTTF(const void* data, size_t data_size, float size_pixels, const ImWchar* glyph_ranges = NULL, int font_no = 0);
+    IMGUI_API void                  Clear();
+    IMGUI_API void                  BuildLookupTable();
+    IMGUI_API const Glyph*          FindGlyph(unsigned short c) const;
+    IMGUI_API bool                  IsLoaded() const { return TexPixels != NULL && !Glyphs.empty(); }
+
+    // Retrieve list of common Unicode ranges (2 value per range, values are inclusive, zero-terminated list)
+    static IMGUI_API const ImWchar* GetGlyphRangesDefault();    // Basic Latin, Extended Latin + a few more
+    static IMGUI_API const ImWchar* GetGlyphRangesJapanese();   // Default + Hiragana, Katakana, Half-Width, Selection of 1946 Ideographs
+    static IMGUI_API const ImWchar* GetGlyphRangesChinese();    // Japanese + full set of about 21000 CJK Unified Ideographs
 
-    struct FntKerning
-    {
-        unsigned int    IdFirst;
-        unsigned int    IdSecond;
-        signed short    Amount;
-    };
-#pragma pack(pop)
+    // 'max_width' stops rendering after a certain width (could be turned into a 2d size). FLT_MAX to disable.
+    // 'wrap_width' enable automatic word-wrapping across multiple lines to fit into given width. 0.0f to disable.
+    IMGUI_API ImVec2                CalcTextSizeA(float size, float max_width, float wrap_width, const char* text_begin, const char* text_end = NULL, const char** remaining = NULL) const; // utf8
+    IMGUI_API ImVec2                CalcTextSizeW(float size, float max_width, const ImWchar* text_begin, const ImWchar* text_end, const ImWchar** remaining = NULL) const;                 // wchar
+    IMGUI_API void                  RenderText(float size, ImVec2 pos, ImU32 col, const ImVec4& clip_rect, const char* text_begin, const char* text_end, ImDrawVert*& out_vertices, float wrap_width = 0.0f) const;
+    IMGUI_API const char*           CalcWordWrapPositionA(float scale, const char* text, const char* text_end, float wrap_width) const;
 };
 
 //---- Include imgui_user.h at the end of imgui.h

stb_rect_pack.h

@@ -0,0 +1,546 @@
+// stb_rect_pack.h - v0.05 - public domain - rectangle packing
+// Sean Barrett 2014
+//
+// Useful for e.g. packing rectangular textures into an atlas.
+// Does not do rotation.
+//
+// Not necessarily the awesomest packing method, but better than
+// the totally naive one in stb_truetype (which is primarily what
+// this is meant to replace).
+//
+// Has only had a few tests run, may have issues.
+//
+// More docs to come.
+//
+// No memory allocations; uses qsort() and assert() from stdlib.
+//
+// This library currently uses the Skyline Bottom-Left algorithm.
+//
+// Please note: better rectangle packers are welcome! Please
+// implement them to the same API, but with a different init
+// function.
+//
+// Version history:
+//
+//     0.05:  added STBRP_ASSERT to allow replacing assert
+//     0.04:  fixed minor bug in STBRP_LARGE_RECTS support
+//     0.01:  initial release
+
+//////////////////////////////////////////////////////////////////////////////
+//
+//       INCLUDE SECTION
+//
+
+#ifndef STB_INCLUDE_STB_RECT_PACK_H
+#define STB_INCLUDE_STB_RECT_PACK_H
+
+#define STB_RECT_PACK_VERSION  1
+
+#ifdef STBRP_STATIC
+#define STBRP_DEF static
+#else
+#define STBRP_DEF extern
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef struct stbrp_context stbrp_context;
+typedef struct stbrp_node    stbrp_node;
+typedef struct stbrp_rect    stbrp_rect;
+
+#ifdef STBRP_LARGE_RECTS
+typedef int            stbrp_coord;
+#else
+typedef unsigned short stbrp_coord;
+#endif
+
+STBRP_DEF void stbrp_pack_rects (stbrp_context *context, stbrp_rect *rects, int num_rects);
+// Assign packed locations to rectangles. The rectangles are of type
+// 'stbrp_rect' defined below, stored in the array 'rects', and there
+// are 'num_rects' many of them.
+//
+// Rectangles which are successfully packed have the 'was_packed' flag
+// set to a non-zero value and 'x' and 'y' store the minimum location
+// on each axis (i.e. bottom-left in cartesian coordinates, top-left
+// if you imagine y increasing downwards). Rectangles which do not fit
+// have the 'was_packed' flag set to 0.
+//
+// You should not try to access the 'rects' array from another thread
+// while this function is running, as the function temporarily reorders
+// the array while it executes.
+//
+// To pack into another rectangle, you need to call stbrp_init_target
+// again. To continue packing into the same rectangle, you can call
+// this function again. Calling this multiple times with multiple rect
+// arrays will probably produce worse packing results than calling it
+// a single time with the full rectangle array, but the option is
+// available.
+
+struct stbrp_rect
+{
+   // reserved for your use:
+   int            id;
+
+   // input:
+   stbrp_coord    w, h;
+
+   // output:
+   stbrp_coord    x, y;
+   int            was_packed;  // non-zero if valid packing
+
+}; // 16 bytes, nominally
+
+
+STBRP_DEF void stbrp_init_target (stbrp_context *context, int width, int height, stbrp_node *nodes, int num_nodes);
+// Initialize a rectangle packer to:
+//    pack a rectangle that is 'width' by 'height' in dimensions
+//    using temporary storage provided by the array 'nodes', which is 'num_nodes' long
+//
+// You must call this function every time you start packing into a new target.
+//
+// There is no "shutdown" function. The 'nodes' memory must stay valid for
+// the following stbrp_pack_rects() call (or calls), but can be freed after
+// the call (or calls) finish.
+//
+// Note: to guarantee best results, either:
+//       1. make sure 'num_nodes' >= 'width'
+//   or  2. call stbrp_allow_out_of_mem() defined below with 'allow_out_of_mem = 1'
+//
+// If you don't do either of the above things, widths will be quantized to multiples
+// of small integers to guarantee the algorithm doesn't run out of temporary storage.
+//
+// If you do #2, then the non-quantized algorithm will be used, but the algorithm
+// may run out of temporary storage and be unable to pack some rectangles.
+
+STBRP_DEF void stbrp_setup_allow_out_of_mem (stbrp_context *context, int allow_out_of_mem);
+// Optionally call this function after init but before doing any packing to
+// change the handling of the out-of-temp-memory scenario, described above.
+// If you call init again, this will be reset to the default (false).
+
+
+STBRP_DEF void stbrp_setup_heuristic (stbrp_context *context, int heuristic);
+// Optionally select which packing heuristic the library should use. Different
+// heuristics will produce better/worse results for different data sets.
+// If you call init again, this will be reset to the default.
+
+enum
+{
+   STBRP_HEURISTIC_Skyline_default=0,
+   STBRP_HEURISTIC_Skyline_BL_sortHeight = STBRP_HEURISTIC_Skyline_default,
+   STBRP_HEURISTIC_Skyline_BF_sortHeight,
+};
+
+
+//////////////////////////////////////////////////////////////////////////////
+//
+// the details of the following structures don't matter to you, but they must
+// be visible so you can handle the memory allocations for them
+
+struct stbrp_node
+{
+   stbrp_coord  x,y;
+   stbrp_node  *next;
+};
+
+struct stbrp_context
+{
+   int width;
+   int height;
+   int align;
+   int init_mode;
+   int heuristic;
+   int num_nodes;
+   stbrp_node *active_head;
+   stbrp_node *free_head;
+   stbrp_node extra[2]; // we allocate two extra nodes so optimal user-node-count is 'width' not 'width+2'
+};
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
+
+//////////////////////////////////////////////////////////////////////////////
+//
+//     IMPLEMENTATION SECTION
+//
+
+#ifdef STB_RECT_PACK_IMPLEMENTATION
+#include <stdlib.h>
+
+#ifndef STBRP_ASSERT
+#include <assert.h>
+#define STBRP_ASSERT assert
+#endif
+
+enum
+{
+   STBRP__INIT_skyline = 1,
+};
+
+STBRP_DEF void stbrp_setup_heuristic(stbrp_context *context, int heuristic)
+{
+   switch (context->init_mode) {
+      case STBRP__INIT_skyline:
+         STBRP_ASSERT(heuristic == STBRP_HEURISTIC_Skyline_BL_sortHeight || heuristic == STBRP_HEURISTIC_Skyline_BF_sortHeight);
+         context->heuristic = heuristic;
+         break;
+      default:
+         STBRP_ASSERT(0);
+   }
+}
+
+STBRP_DEF void stbrp_setup_allow_out_of_mem(stbrp_context *context, int allow_out_of_mem)
+{
+   if (allow_out_of_mem)
+      // if it's ok to run out of memory, then don't bother aligning them;
+      // this gives better packing, but may fail due to OOM (even though
+      // the rectangles easily fit). @TODO a smarter approach would be to only
+      // quantize once we've hit OOM, then we could get rid of this parameter.
+      context->align = 1;
+   else {
+      // if it's not ok to run out of memory, then quantize the widths
+      // so that num_nodes is always enough nodes.
+      //
+      // I.e. num_nodes * align >= width
+      //                  align >= width / num_nodes
+      //                  align = ceil(width/num_nodes)
+
+      context->align = (context->width + context->num_nodes-1) / context->num_nodes;
+   }
+}
+
+STBRP_DEF void stbrp_init_target(stbrp_context *context, int width, int height, stbrp_node *nodes, int num_nodes)
+{
+   int i;
+#ifndef STBRP_LARGE_RECTS
+   STBRP_ASSERT(width <= 0xffff && height <= 0xffff);
+#endif
+
+   for (i=0; i < num_nodes-1; ++i)
+      nodes[i].next = &nodes[i+1];
+   nodes[i].next = NULL;
+   context->init_mode = STBRP__INIT_skyline;
+   context->heuristic = STBRP_HEURISTIC_Skyline_default;
+   context->free_head = &nodes[0];
+   context->active_head = &context->extra[0];
+   context->width = width;
+   context->height = height;
+   context->num_nodes = num_nodes;
+   stbrp_setup_allow_out_of_mem(context, 0);
+
+   // node 0 is the full width, node 1 is the sentinel (lets us not store width explicitly)
+   context->extra[0].x = 0;
+   context->extra[0].y = 0;
+   context->extra[0].next = &context->extra[1];
+   context->extra[1].x = (stbrp_coord) width;
+#ifdef STBRP_LARGE_RECTS
+   context->extra[1].y = (1<<30);
+#else
+   context->extra[1].y = 65535;
+#endif
+   context->extra[1].next = NULL;
+}
+
+// find minimum y position if it starts at x1
+static int stbrp__skyline_find_min_y(stbrp_context *c, stbrp_node *first, int x0, int width, int *pwaste)
+{
+   stbrp_node *node = first;
+   int x1 = x0 + width;
+   int min_y, visited_width, waste_area;
+   STBRP_ASSERT(first->x <= x0);
+
+   #if 0
+   // skip in case we're past the node
+   while (node->next->x <= x0)
+      ++node;
+   #else
+   STBRP_ASSERT(node->next->x > x0); // we ended up handling this in the caller for efficiency
+   #endif
+
+   STBRP_ASSERT(node->x <= x0);
+
+   min_y = 0;
+   waste_area = 0;
+   visited_width = 0;
+   while (node->x < x1) {
+      if (node->y > min_y) {
+         // raise min_y higher.
+         // we've accounted for all waste up to min_y,
+         // but we'll now add more waste for everything we've visted
+         waste_area += visited_width * (node->y - min_y);
+         min_y = node->y;
+         // the first time through, visited_width might be reduced
+         if (node->x < x0)
+            visited_width += node->next->x - x0;
+         else
+            visited_width += node->next->x - node->x;
+      } else {
+         // add waste area
+         int under_width = node->next->x - node->x;
+         if (under_width + visited_width > width)
+            under_width = width - visited_width;
+         waste_area += under_width * (min_y - node->y);
+         visited_width += under_width;
+      }
+      node = node->next;
+   }
+
+   *pwaste = waste_area;
+   return min_y;
+}
+
+typedef struct
+{
+   int x,y;
+   stbrp_node **prev_link;
+} stbrp__findresult;
+
+static stbrp__findresult stbrp__skyline_find_best_pos(stbrp_context *c, int width, int height)
+{
+   int best_waste = (1<<30), best_x, best_y = (1 << 30);
+   stbrp__findresult fr;
+   stbrp_node **prev, *node, *tail, **best = NULL;
+
+   // align to multiple of c->align
+   width = (width + c->align - 1);
+   width -= width % c->align;
+   STBRP_ASSERT(width % c->align == 0);
+
+   node = c->active_head;
+   prev = &c->active_head;
+   while (node->x + width <= c->width) {
+      int y,waste;
+      y = stbrp__skyline_find_min_y(c, node, node->x, width, &waste);
+      if (c->heuristic == STBRP_HEURISTIC_Skyline_BL_sortHeight) { // actually just want to test BL
+         // bottom left
+         if (y < best_y) {
+            best_y = y;
+            best = prev;
+         }
+      } else {
+         // best-fit
+         if (y + height <= c->height) {
+            // can only use it if it first vertically
+            if (y < best_y || (y == best_y && waste < best_waste)) {
+               best_y = y;
+               best_waste = waste;
+               best = prev;
+            }
+         }
+      }
+      prev = &node->next;
+      node = node->next;
+   }
+
+   best_x = (best == NULL) ? 0 : (*best)->x;
+
+   // if doing best-fit (BF), we also have to try aligning right edge to each node position
+   //
+   // e.g, if fitting
+   //
+   //     ____________________
+   //    |____________________|
+   //
+   //            into
+   //
+   //   |                         |
+   //   |             ____________|
+   //   |____________|
+   //
+   // then right-aligned reduces waste, but bottom-left BL is always chooses left-aligned
+   //
+   // This makes BF take about 2x the time
+
+   if (c->heuristic == STBRP_HEURISTIC_Skyline_BF_sortHeight) {
+      tail = c->active_head;
+      node = c->active_head;
+      prev = &c->active_head;
+      // find first node that's admissible
+      while (tail->x < width)
+         tail = tail->next;
+      while (tail) {
+         int xpos = tail->x - width;
+         int y,waste;
+         STBRP_ASSERT(xpos >= 0);
+         // find the left position that matches this
+         while (node->next->x <= xpos) {
+            prev = &node->next;
+            node = node->next;
+         }
+         STBRP_ASSERT(node->next->x > xpos && node->x <= xpos);
+         y = stbrp__skyline_find_min_y(c, node, xpos, width, &waste);
+         if (y + height < c->height) {
+            if (y <= best_y) {
+               if (y < best_y || waste < best_waste || (waste==best_waste && xpos < best_x)) {
+                  best_x = xpos;
+                  STBRP_ASSERT(y <= best_y);
+                  best_y = y;
+                  best_waste = waste;
+                  best = prev;
+               }
+            }
+         }
+         tail = tail->next;
+      }         
+   }
+
+   fr.prev_link = best;
+   fr.x = best_x;
+   fr.y = best_y;
+   return fr;
+}
+
+static stbrp__findresult stbrp__skyline_pack_rectangle(stbrp_context *context, int width, int height)
+{
+   // find best position according to heuristic
+   stbrp__findresult res = stbrp__skyline_find_best_pos(context, width, height);
+   stbrp_node *node, *cur;
+
+   // bail if:
+   //    1. it failed
+   //    2. the best node doesn't fit (we don't always check this)
+   //    3. we're out of memory
+   if (res.prev_link == NULL || res.y + height > context->height || context->free_head == NULL) {
+      res.prev_link = NULL;
+      return res;
+   }
+
+   // on success, create new node
+   node = context->free_head;
+   node->x = (stbrp_coord) res.x;
+   node->y = (stbrp_coord) (res.y + height);
+
+   context->free_head = node->next;
+
+   // insert the new node into the right starting point, and
+   // let 'cur' point to the remaining nodes needing to be
+   // stiched back in
+
+   cur = *res.prev_link;
+   if (cur->x < res.x) {
+      // preserve the existing one, so start testing with the next one
+      stbrp_node *next = cur->next;
+      cur->next = node;
+      cur = next;
+   } else {
+      *res.prev_link = node;
+   }
+
+   // from here, traverse cur and free the nodes, until we get to one
+   // that shouldn't be freed
+   while (cur->next && cur->next->x <= res.x + width) {
+      stbrp_node *next = cur->next;
+      // move the current node to the free list
+      cur->next = context->free_head;
+      context->free_head = cur;
+      cur = next;
+   }
+
+   // stitch the list back in
+   node->next = cur;
+
+   if (cur->x < res.x + width)
+      cur->x = (stbrp_coord) (res.x + width);
+
+#ifdef _DEBUG
+   cur = context->active_head;
+   while (cur->x < context->width) {
+      STBRP_ASSERT(cur->x < cur->next->x);
+      cur = cur->next;
+   }
+   STBRP_ASSERT(cur->next == NULL);
+
+   {
+      stbrp_node *L1 = NULL, *L2 = NULL;
+      int count=0;
+      cur = context->active_head;
+      while (cur) {
+         L1 = cur;
+         cur = cur->next;
+         ++count;
+      }
+      cur = context->free_head;
+      while (cur) {
+         L2 = cur;
+         cur = cur->next;
+         ++count;
+      }
+      STBRP_ASSERT(count == context->num_nodes+2);
+   }
+#endif
+
+   return res;
+}
+
+static int rect_height_compare(const void *a, const void *b)
+{
+   stbrp_rect *p = (stbrp_rect *) a;
+   stbrp_rect *q = (stbrp_rect *) b;
+   if (p->h > q->h)
+      return -1;
+   if (p->h < q->h)
+      return  1;
+   return (p->w > q->w) ? -1 : (p->w < q->w);
+}
+
+static int rect_width_compare(const void *a, const void *b)
+{
+   stbrp_rect *p = (stbrp_rect *) a;
+   stbrp_rect *q = (stbrp_rect *) b;
+   if (p->w > q->w)
+      return -1;
+   if (p->w < q->w)
+      return  1;
+   return (p->h > q->h) ? -1 : (p->h < q->h);
+}
+
+static int rect_original_order(const void *a, const void *b)
+{
+   stbrp_rect *p = (stbrp_rect *) a;
+   stbrp_rect *q = (stbrp_rect *) b;
+   return (p->was_packed < q->was_packed) ? -1 : (p->was_packed > q->was_packed);
+}
+
+#ifdef STBRP_LARGE_RECTS
+#define STBRP__MAXVAL  0xffffffff
+#else
+#define STBRP__MAXVAL  0xffff
+#endif
+
+STBRP_DEF void stbrp_pack_rects(stbrp_context *context, stbrp_rect *rects, int num_rects)
+{
+   int i;
+
+   // we use the 'was_packed' field internally to allow sorting/unsorting
+   for (i=0; i < num_rects; ++i) {
+      rects[i].was_packed = i;
+      #ifndef STBRP_LARGE_RECTS
+      STBRP_ASSERT(rects[i].w <= 0xffff && rects[i].h <= 0xffff);
+      #endif
+   }
+
+   // sort according to heuristic
+   qsort(rects, num_rects, sizeof(rects[0]), rect_height_compare);
+
+   for (i=0; i < num_rects; ++i) {
+      stbrp__findresult fr = stbrp__skyline_pack_rectangle(context, rects[i].w, rects[i].h);
+      if (fr.prev_link) {
+         rects[i].x = (stbrp_coord) fr.x;
+         rects[i].y = (stbrp_coord) fr.y;
+      } else {
+         rects[i].x = rects[i].y = STBRP__MAXVAL;
+      }
+   }
+
+   // unsort
+   qsort(rects, num_rects, sizeof(rects[0]), rect_original_order);
+
+   // set was_packed flags
+   for (i=0; i < num_rects; ++i)
+      rects[i].was_packed = !(rects[i].x == STBRP__MAXVAL && rects[i].y == STBRP__MAXVAL);
+}
+#endif

stb_truetype.h

@@ -0,0 +1,2646 @@
+// stb_truetype.h - v1.02 - public domain
+// authored from 2009-2014 by Sean Barrett / RAD Game Tools
+//
+//   This library processes TrueType files:
+//        parse files
+//        extract glyph metrics
+//        extract glyph shapes
+//        render glyphs to one-channel bitmaps with antialiasing (box filter)
+//
+//   Todo:
+//        non-MS cmaps
+//        crashproof on bad data
+//        hinting? (no longer patented)
+//        cleartype-style AA?
+//        optimize: use simple memory allocator for intermediates
+//        optimize: build edge-list directly from curves
+//        optimize: rasterize directly from curves?
+//
+// ADDITIONAL CONTRIBUTORS
+//
+//   Mikko Mononen: compound shape support, more cmap formats
+//   Tor Andersson: kerning, subpixel rendering
+//
+//   Bug/warning reports/fixes:
+//       "Zer" on mollyrocket (with fix)
+//       Cass Everitt
+//       stoiko (Haemimont Games)
+//       Brian Hook 
+//       Walter van Niftrik
+//       David Gow
+//       David Given
+//       Ivan-Assen Ivanov
+//       Anthony Pesch
+//       Johan Duparc
+//       Hou Qiming
+//       Fabian "ryg" Giesen
+//
+//   Misc other:
+//       Ryan Gordon
+//
+// VERSION HISTORY
+//
+//   1.02 (2014-12-10) fix various warnings & compile issues w/ stb_rect_pack, C++
+//   1.01 (2014-12-08) fix subpixel position when oversampling to exactly match
+//                        non-oversampled; STBTT_POINT_SIZE for packed case only
+//   1.00 (2014-12-06) add new PackBegin etc. API, w/ support for oversampling
+//   0.99 (2014-09-18) fix multiple bugs with subpixel rendering (ryg)
+//   0.9  (2014-08-07) support certain mac/iOS fonts without an MS platformID
+//   0.8b (2014-07-07) fix a warning
+//   0.8  (2014-05-25) fix a few more warnings
+//   0.7  (2013-09-25) bugfix: subpixel glyph bug fixed in 0.5 had come back
+//   0.6c (2012-07-24) improve documentation
+//   0.6b (2012-07-20) fix a few more warnings
+//   0.6  (2012-07-17) fix warnings; added stbtt_ScaleForMappingEmToPixels,
+//                        stbtt_GetFontBoundingBox, stbtt_IsGlyphEmpty
+//   0.5  (2011-12-09) bugfixes:
+//                        subpixel glyph renderer computed wrong bounding box
+//                        first vertex of shape can be off-curve (FreeSans)
+//   0.4b (2011-12-03) fixed an error in the font baking example
+//   0.4  (2011-12-01) kerning, subpixel rendering (tor)
+//                    bugfixes for:
+//                        codepoint-to-glyph conversion using table fmt=12
+//                        codepoint-to-glyph conversion using table fmt=4
+//                        stbtt_GetBakedQuad with non-square texture (Zer)
+//                    updated Hello World! sample to use kerning and subpixel
+//                    fixed some warnings
+//   0.3  (2009-06-24) cmap fmt=12, compound shapes (MM)
+//                    userdata, malloc-from-userdata, non-zero fill (stb)
+//   0.2  (2009-03-11) Fix unsigned/signed char warnings
+//   0.1  (2009-03-09) First public release
+//
+// LICENSE
+//
+//   This software is in the public domain. Where that dedication is not
+//   recognized, you are granted a perpetual, irrevokable license to copy
+//   and modify this file as you see fit.
+//
+// USAGE
+//
+//   Include this file in whatever places neeed to refer to it. In ONE C/C++
+//   file, write:
+//      #define STB_TRUETYPE_IMPLEMENTATION
+//   before the #include of this file. This expands out the actual
+//   implementation into that C/C++ file.
+//
+//   Simple 3D API (don't ship this, but it's fine for tools and quick start)
+//           stbtt_BakeFontBitmap()               -- bake a font to a bitmap for use as texture
+//           stbtt_GetBakedQuad()                 -- compute quad to draw for a given char
+//
+//   Improved 3D API (more shippable):
+//           #include "stb_rect_pack.h"           -- optional, but you really want it
+//           stbtt_PackBegin()
+//           stbtt_PackSetOversample()            -- for improved quality on small fonts
+//           stbtt_PackFontRanges()               -- pack and renders
+//           stbtt_PackEnd()
+//           stbtt_GetPackedQuad()
+//
+//   "Load" a font file from a memory buffer (you have to keep the buffer loaded)
+//           stbtt_InitFont()
+//           stbtt_GetFontOffsetForIndex()        -- use for TTC font collections
+//
+//   Render a unicode codepoint to a bitmap
+//           stbtt_GetCodepointBitmap()           -- allocates and returns a bitmap
+//           stbtt_MakeCodepointBitmap()          -- renders into bitmap you provide
+//           stbtt_GetCodepointBitmapBox()        -- how big the bitmap must be
+//
+//   Character advance/positioning
+//           stbtt_GetCodepointHMetrics()
+//           stbtt_GetFontVMetrics()
+//           stbtt_GetCodepointKernAdvance()
+//
+// ADDITIONAL DOCUMENTATION
+//
+//   Immediately after this block comment are a series of sample programs.
+//
+//   After the sample programs is the "header file" section. This section
+//   includes documentation for each API function.
+//
+//   Some important concepts to understand to use this library:
+//
+//      Codepoint
+//         Characters are defined by unicode codepoints, e.g. 65 is
+//         uppercase A, 231 is lowercase c with a cedilla, 0x7e30 is
+//         the hiragana for "ma".
+//
+//      Glyph
+//         A visual character shape (every codepoint is rendered as
+//         some glyph)
+//
+//      Glyph index
+//         A font-specific integer ID representing a glyph
+//
+//      Baseline
+//         Glyph shapes are defined relative to a baseline, which is the
+//         bottom of uppercase characters. Characters extend both above
+//         and below the baseline.
+//
+//      Current Point
+//         As you draw text to the screen, you keep track of a "current point"
+//         which is the origin of each character. The current point's vertical
+//         position is the baseline. Even "baked fonts" use this model.
+//
+//      Vertical Font Metrics
+//         The vertical qualities of the font, used to vertically position
+//         and space the characters. See docs for stbtt_GetFontVMetrics.
+//
+//      Font Size in Pixels or Points
+//         The preferred interface for specifying font sizes in stb_truetype
+//         is to specify how tall the font's vertical extent should be in pixels.
+//         If that sounds good enough, skip the next paragraph.
+//
+//         Most font APIs instead use "points", which are a common typographic
+//         measurement for describing font size, defined as 72 points per inch.
+//         stb_truetype provides a point API for compatibility. However, true
+//         "per inch" conventions don't make much sense on computer displays
+//         since they different monitors have different number of pixels per
+//         inch. For example, Windows traditionally uses a convention that
+//         there are 96 pixels per inch, thus making 'inch' measurements have
+//         nothing to do with inches, and thus effectively defining a point to
+//         be 1.333 pixels. Additionally, the TrueType font data provides
+//         an explicit scale factor to scale a given font's glyphs to points,
+//         but the author has observed that this scale factor is often wrong
+//         for non-commercial fonts, thus making fonts scaled in points
+//         according to the TrueType spec incoherently sized in practice.
+//
+// ADVANCED USAGE
+//
+//   Quality:
+//
+//    - Use the functions with Subpixel at the end to allow your characters
+//      to have subpixel positioning. Since the font is anti-aliased, not
+//      hinted, this is very import for quality. (This is not possible with
+//      baked fonts.)
+//
+//    - Kerning is now supported, and if you're supporting subpixel rendering
+//      then kerning is worth using to give your text a polished look.
+//
+//   Performance:
+//
+//    - Convert Unicode codepoints to glyph indexes and operate on the glyphs;
+//      if you don't do this, stb_truetype is forced to do the conversion on
+//      every call.
+//
+//    - There are a lot of memory allocations. We should modify it to take
+//      a temp buffer and allocate from the temp buffer (without freeing),
+//      should help performance a lot.
+//
+// NOTES
+//
+//   The system uses the raw data found in the .ttf file without changing it
+//   and without building auxiliary data structures. This is a bit inefficient
+//   on little-endian systems (the data is big-endian), but assuming you're
+//   caching the bitmaps or glyph shapes this shouldn't be a big deal.
+//
+//   It appears to be very hard to programmatically determine what font a
+//   given file is in a general way. I provide an API for this, but I don't
+//   recommend it.
+//
+//
+// SOURCE STATISTICS (based on v0.6c, 2050 LOC)
+//
+//   Documentation & header file        520 LOC  \___ 660 LOC documentation
+//   Sample code                        140 LOC  /
+//   Truetype parsing                   620 LOC  ---- 620 LOC TrueType
+//   Software rasterization             240 LOC  \                           .
+//   Curve tesselation                  120 LOC   \__ 550 LOC Bitmap creation
+//   Bitmap management                  100 LOC   /
+//   Baked bitmap interface              70 LOC  /
+//   Font name matching & access        150 LOC  ---- 150 
+//   C runtime library abstraction       60 LOC  ----  60
+
+
+//////////////////////////////////////////////////////////////////////////////
+//////////////////////////////////////////////////////////////////////////////
+////
+////  SAMPLE PROGRAMS
+////
+//
+//  Incomplete text-in-3d-api example, which draws quads properly aligned to be lossless
+//
+#if 0
+#define STB_TRUETYPE_IMPLEMENTATION  // force following include to generate implementation
+#include "stb_truetype.h"
+
+char ttf_buffer[1<<20];
+unsigned char temp_bitmap[512*512];
+
+stbtt_bakedchar cdata[96]; // ASCII 32..126 is 95 glyphs
+GLstbtt_uint ftex;
+
+void my_stbtt_initfont(void)
+{
+   fread(ttf_buffer, 1, 1<<20, fopen("c:/windows/fonts/times.ttf", "rb"));
+   stbtt_BakeFontBitmap(data,0, 32.0, temp_bitmap,512,512, 32,96, cdata); // no guarantee this fits!
+   // can free ttf_buffer at this point
+   glGenTextures(1, &ftex);
+   glBindTexture(GL_TEXTURE_2D, ftex);
+   glTexImage2D(GL_TEXTURE_2D, 0, GL_ALPHA, 512,512, 0, GL_ALPHA, GL_UNSIGNED_BYTE, temp_bitmap);
+   // can free temp_bitmap at this point
+   glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+}
+
+void my_stbtt_print(float x, float y, char *text)
+{
+   // assume orthographic projection with units = screen pixels, origin at top left
+   glBindTexture(GL_TEXTURE_2D, ftex);
+   glBegin(GL_QUADS);
+   while (*text) {
+      if (*text >= 32 && *text < 128) {
+         stbtt_aligned_quad q;
+         stbtt_GetBakedQuad(cdata, 512,512, *text-32, &x,&y,&q,1);//1=opengl & d3d10+,0=d3d9
+         glTexCoord2f(q.s0,q.t1); glVertex2f(q.x0,q.y0);
+         glTexCoord2f(q.s1,q.t1); glVertex2f(q.x1,q.y0);
+         glTexCoord2f(q.s1,q.t0); glVertex2f(q.x1,q.y1);
+         glTexCoord2f(q.s0,q.t0); glVertex2f(q.x0,q.y1);
+      }
+      ++text;
+   }
+   glEnd();
+}
+#endif
+//
+//
+//////////////////////////////////////////////////////////////////////////////
+//
+// Complete program (this compiles): get a single bitmap, print as ASCII art
+//
+#if 0
+#include <stdio.h>
+#define STB_TRUETYPE_IMPLEMENTATION  // force following include to generate implementation
+#include "stb_truetype.h"
+
+char ttf_buffer[1<<25];
+
+int main(int argc, char **argv)
+{
+   stbtt_fontinfo font;
+   unsigned char *bitmap;
+   int w,h,i,j,c = (argc > 1 ? atoi(argv[1]) : 'a'), s = (argc > 2 ? atoi(argv[2]) : 20);
+
+   fread(ttf_buffer, 1, 1<<25, fopen(argc > 3 ? argv[3] : "c:/windows/fonts/arialbd.ttf", "rb"));
+
+   stbtt_InitFont(&font, ttf_buffer, stbtt_GetFontOffsetForIndex(ttf_buffer,0));
+   bitmap = stbtt_GetCodepointBitmap(&font, 0,stbtt_ScaleForPixelHeight(&font, s), c, &w, &h, 0,0);
+
+   for (j=0; j < h; ++j) {
+      for (i=0; i < w; ++i)
+         putchar(" .:ioVM@"[bitmap[j*w+i]>>5]);
+      putchar('\n');
+   }
+   return 0;
+}
+#endif 
+//
+// Output:
+//
+//     .ii.
+//    @@@@@@.
+//   V@Mio@@o
+//   :i.  V@V
+//     :oM@@M
+//   :@@@MM@M
+//   @@o  o@M
+//  :@@.  M@M
+//   @@@o@@@@
+//   :M@@V:@@.
+//  
+//////////////////////////////////////////////////////////////////////////////
+// 
+// Complete program: print "Hello World!" banner, with bugs
+//
+#if 0
+char buffer[24<<20];
+unsigned char screen[20][79];
+
+int main(int arg, char **argv)
+{
+   stbtt_fontinfo font;
+   int i,j,ascent,baseline,ch=0;
+   float scale, xpos=2; // leave a little padding in case the character extends left
+   char *text = "Heljo World!";
+
+   fread(buffer, 1, 1000000, fopen("c:/windows/fonts/arialbd.ttf", "rb"));
+   stbtt_InitFont(&font, buffer, 0);
+
+   scale = stbtt_ScaleForPixelHeight(&font, 15);
+   stbtt_GetFontVMetrics(&font, &ascent,0,0);
+   baseline = (int) (ascent*scale);
+
+   while (text[ch]) {
+      int advance,lsb,x0,y0,x1,y1;
+      float x_shift = xpos - (float) floor(xpos);
+      stbtt_GetCodepointHMetrics(&font, text[ch], &advance, &lsb);
+      stbtt_GetCodepointBitmapBoxSubpixel(&font, text[ch], scale,scale,x_shift,0, &x0,&y0,&x1,&y1);
+      stbtt_MakeCodepointBitmapSubpixel(&font, &screen[baseline + y0][(int) xpos + x0], x1-x0,y1-y0, 79, scale,scale,x_shift,0, text[ch]);
+      // note that this stomps the old data, so where character boxes overlap (e.g. 'lj') it's wrong
+      // because this API is really for baking character bitmaps into textures. if you want to render
+      // a sequence of characters, you really need to render each bitmap to a temp buffer, then
+      // "alpha blend" that into the working buffer
+      xpos += (advance * scale);
+      if (text[ch+1])
+         xpos += scale*stbtt_GetCodepointKernAdvance(&font, text[ch],text[ch+1]);
+      ++ch;
+   }
+
+   for (j=0; j < 20; ++j) {
+      for (i=0; i < 78; ++i)
+         putchar(" .:ioVM@"[screen[j][i]>>5]);
+      putchar('\n');
+   }
+
+   return 0;
+}
+#endif
+
+
+//////////////////////////////////////////////////////////////////////////////
+//////////////////////////////////////////////////////////////////////////////
+////
+////   INTEGRATION WITH YOUR CODEBASE
+////
+////   The following sections allow you to supply alternate definitions
+////   of C library functions used by stb_truetype.
+
+#ifdef STB_TRUETYPE_IMPLEMENTATION
+   // #define your own (u)stbtt_int8/16/32 before including to override this
+   #ifndef stbtt_uint8
+   typedef unsigned char   stbtt_uint8;
+   typedef signed   char   stbtt_int8;
+   typedef unsigned short  stbtt_uint16;
+   typedef signed   short  stbtt_int16;
+   typedef unsigned int    stbtt_uint32;
+   typedef signed   int    stbtt_int32;
+   #endif
+
+   typedef char stbtt__check_size32[sizeof(stbtt_int32)==4 ? 1 : -1];
+   typedef char stbtt__check_size16[sizeof(stbtt_int16)==2 ? 1 : -1];
+
+   // #define your own STBTT_sort() to override this to avoid qsort
+   #ifndef STBTT_sort
+   #include <stdlib.h>
+   #define STBTT_sort(data,num_items,item_size,compare_func)   qsort(data,num_items,item_size,compare_func)
+   #endif
+
+   // #define your own STBTT_ifloor/STBTT_iceil() to avoid math.h
+   #ifndef STBTT_ifloor
+   #include <math.h>
+   #define STBTT_ifloor(x)   ((int) floor(x))
+   #define STBTT_iceil(x)    ((int) ceil(x))
+   #endif
+
+   #ifndef STBTT_sqrt
+   #include <math.h>
+   #define STBTT_sqrt(x)      sqrt(x)
+   #endif
+
+   // #define your own functions "STBTT_malloc" / "STBTT_free" to avoid malloc.h
+   #ifndef STBTT_malloc
+   #include <stdlib.h>
+   #define STBTT_malloc(x,u)  ((void)(u),malloc(x))
+   #define STBTT_free(x,u)    ((void)(u),free(x))
+   #endif
+
+   #ifndef STBTT_assert
+   #include <assert.h>
+   #define STBTT_assert(x)    assert(x)
+   #endif
+
+   #ifndef STBTT_strlen
+   #include <string.h>
+   #define STBTT_strlen(x)    strlen(x)
+   #endif
+
+   #ifndef STBTT_memcpy
+   #include <memory.h>
+   #define STBTT_memcpy       memcpy
+   #define STBTT_memset       memset
+   #endif
+#endif
+
+///////////////////////////////////////////////////////////////////////////////
+///////////////////////////////////////////////////////////////////////////////
+////
+////   INTERFACE
+////
+////
+
+#ifndef __STB_INCLUDE_STB_TRUETYPE_H__
+#define __STB_INCLUDE_STB_TRUETYPE_H__
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+//////////////////////////////////////////////////////////////////////////////
+//
+// TEXTURE BAKING API
+//
+// If you use this API, you only have to call two functions ever.
+//
+
+typedef struct
+{
+   unsigned short x0,y0,x1,y1; // coordinates of bbox in bitmap
+   float xoff,yoff,xadvance;
+} stbtt_bakedchar;
+
+extern int stbtt_BakeFontBitmap(const unsigned char *data, int offset,  // font location (use offset=0 for plain .ttf)
+                                float pixel_height,                     // height of font in pixels
+                                unsigned char *pixels, int pw, int ph,  // bitmap to be filled in
+                                int first_char, int num_chars,          // characters to bake
+                                stbtt_bakedchar *chardata);             // you allocate this, it's num_chars long
+// if return is positive, the first unused row of the bitmap
+// if return is negative, returns the negative of the number of characters that fit
+// if return is 0, no characters fit and no rows were used
+// This uses a very crappy packing.
+
+typedef struct
+{
+   float x0,y0,s0,t0; // top-left
+   float x1,y1,s1,t1; // bottom-right
+} stbtt_aligned_quad;
+
+extern void stbtt_GetBakedQuad(stbtt_bakedchar *chardata, int pw, int ph,  // same data as above
+                               int char_index,             // character to display
+                               float *xpos, float *ypos,   // pointers to current position in screen pixel space
+                               stbtt_aligned_quad *q,      // output: quad to draw
+                               int opengl_fillrule);       // true if opengl fill rule; false if DX9 or earlier
+// Call GetBakedQuad with char_index = 'character - first_char', and it
+// creates the quad you need to draw and advances the current position.
+//
+// The coordinate system used assumes y increases downwards.
+//
+// Characters will extend both above and below the current position;
+// see discussion of "BASELINE" above.
+//
+// It's inefficient; you might want to c&p it and optimize it.
+
+
+
+//////////////////////////////////////////////////////////////////////////////
+//
+// NEW TEXTURE BAKING API
+//
+// This provides options for packing multiple fonts into one atlas, not
+// perfectly but better than nothing.
+
+typedef struct
+{
+   unsigned short x0,y0,x1,y1; // coordinates of bbox in bitmap
+   float xoff,yoff,xadvance;
+   float xoff2,yoff2;
+} stbtt_packedchar;
+
+typedef struct stbtt_pack_context stbtt_pack_context;
+typedef struct stbtt_fontinfo stbtt_fontinfo;
+
+extern int  stbtt_PackBegin(stbtt_pack_context *spc, unsigned char *pixels, int width, int height, int stride_in_bytes, int padding, void *alloc_context);
+// Initializes a packing context stored in the passed-in stbtt_pack_context.
+// Future calls using this context will pack characters into the bitmap passed
+// in here: a 1-channel bitmap that is weight x height. stride_in_bytes is
+// the distance from one row to the next (or 0 to mean they are packed tightly
+// together). "padding" is // the amount of padding to leave between each
+// character (normally you want '1' for bitmaps you'll use as textures with
+// bilinear filtering).
+//
+// Returns 0 on failure, 1 on success.
+
+extern void stbtt_PackEnd  (stbtt_pack_context *spc);
+// Cleans up the packing context and frees all memory.
+
+#define STBTT_POINT_SIZE(x)   (-(x))
+
+extern int  stbtt_PackFontRange(stbtt_pack_context *spc, unsigned char *fontdata, int font_index, float font_size,
+                                int first_unicode_char_in_range, int num_chars_in_range, stbtt_packedchar *chardata_for_range);
+// Creates character bitmaps from the font_index'th font found in fontdata (use
+// font_index=0 if you don't know what that is). It creates num_chars_in_range
+// bitmaps for characters with unicode values starting at first_unicode_char_in_range
+// and increasing. Data for how to render them is stored in chardata_for_range;
+// pass these to stbtt_GetPackedQuad to get back renderable quads.
+//
+// font_size is the full height of the character from ascender to descender,
+// as computed by stbtt_ScaleForPixelHeight. To use a point size as computed
+// by stbtt_ScaleForMappingEmToPixels, wrap the point size in STBTT_POINT_SIZE()
+// and pass that result as 'font_size':
+//       ...,                  20 , ... // font max minus min y is 20 pixels tall
+//       ..., STBTT_POINT_SIZE(20), ... // 'M' is 20 pixels tall
+
+typedef struct
+{
+   float font_size;
+   int first_unicode_char_in_range;
+   int num_chars_in_range;
+   stbtt_packedchar *chardata_for_range; // output
+} stbtt_pack_range;
+
+extern int  stbtt_PackFontRanges(stbtt_pack_context *spc, unsigned char *fontdata, int font_index, stbtt_pack_range *ranges, int num_ranges);
+// Creates character bitmaps from multiple ranges of characters stored in
+// ranges. This will usually create a better-packed bitmap than multiple
+// calls to stbtt_PackFontRange.
+
+extern int  stbtt_PackFontRangesGatherRects(stbtt_pack_context *spc, stbtt_fontinfo *info, stbtt_pack_range *ranges, int num_ranges, stbrp_rect *rects);
+extern int  stbtt_PackFontRangesRenderIntoRects(stbtt_pack_context *spc, stbtt_fontinfo *info, stbtt_pack_range *ranges, int num_ranges, stbrp_rect *rects);
+// Those functions are called by stbtt_PackFontRanges(). If you want to
+// pack multiple fonts or custom data into a same texture, you may copy
+// the contents of stbtt_PackFontRanges() and create a custom version 
+// using those functions.
+
+extern void stbtt_PackSetOversampling(stbtt_pack_context *spc, unsigned int h_oversample, unsigned int v_oversample);
+// Oversampling a font increases the quality by allowing higher-quality subpixel
+// positioning, and is especially valuable at smaller text sizes.
+//
+// This function sets the amount of oversampling for all following calls to
+// stbtt_PackFontRange(s). The default (no oversampling) is achieved by
+// h_oversample=1, v_oversample=1. The total number of pixels required is
+// h_oversample*v_oversample larger than the default; for example, 2x2
+// oversampling requires 4x the storage of 1x1. For best results, render
+// oversampled textures with bilinear filtering. Look at the readme in
+// stb/tests/oversample for information about oversampled fonts
+
+extern void stbtt_GetPackedQuad(stbtt_packedchar *chardata, int pw, int ph,  // same data as above
+                               int char_index,             // character to display
+                               float *xpos, float *ypos,   // pointers to current position in screen pixel space
+                               stbtt_aligned_quad *q,      // output: quad to draw
+                               int align_to_integer);
+
+// this is an opaque structure that you shouldn't mess with which holds
+// all the context needed from PackBegin to PackEnd.
+struct stbtt_pack_context {
+   void *user_allocator_context;
+   void *pack_info;
+   int   width;
+   int   height;
+   int   stride_in_bytes;
+   int   padding;
+   unsigned int   h_oversample, v_oversample;
+   unsigned char *pixels;
+   void  *nodes;
+};
+
+//////////////////////////////////////////////////////////////////////////////
+//
+// FONT LOADING
+//
+//
+
+extern int stbtt_GetFontOffsetForIndex(const unsigned char *data, int index);
+// Each .ttf/.ttc file may have more than one font. Each font has a sequential
+// index number starting from 0. Call this function to get the font offset for
+// a given index; it returns -1 if the index is out of range. A regular .ttf
+// file will only define one font and it always be at offset 0, so it will
+// return '0' for index 0, and -1 for all other indices. You can just skip
+// this step if you know it's that kind of font.
+
+
+// The following structure is defined publically so you can declare one on
+// the stack or as a global or etc, but you should treat it as opaque.
+typedef struct stbtt_fontinfo
+{
+   void           * userdata;
+   unsigned char  * data;              // pointer to .ttf file
+   int              fontstart;         // offset of start of font
+
+   int numGlyphs;                     // number of glyphs, needed for range checking
+
+   int loca,head,glyf,hhea,hmtx,kern; // table locations as offset from start of .ttf
+   int index_map;                     // a cmap mapping for our chosen character encoding
+   int indexToLocFormat;              // format needed to map from glyph index to glyph
+} stbtt_fontinfo;
+
+extern int stbtt_InitFont(stbtt_fontinfo *info, const unsigned char *data, int offset);
+// Given an offset into the file that defines a font, this function builds
+// the necessary cached info for the rest of the system. You must allocate
+// the stbtt_fontinfo yourself, and stbtt_InitFont will fill it out. You don't
+// need to do anything special to free it, because the contents are pure
+// value data with no additional data structures. Returns 0 on failure.
+
+
+//////////////////////////////////////////////////////////////////////////////
+//
+// CHARACTER TO GLYPH-INDEX CONVERSIOn
+
+int stbtt_FindGlyphIndex(const stbtt_fontinfo *info, int unicode_codepoint);
+// If you're going to perform multiple operations on the same character
+// and you want a speed-up, call this function with the character you're
+// going to process, then use glyph-based functions instead of the
+// codepoint-based functions.
+
+
+//////////////////////////////////////////////////////////////////////////////
+//
+// CHARACTER PROPERTIES
+//
+
+extern float stbtt_ScaleForPixelHeight(const stbtt_fontinfo *info, float pixels);
+// computes a scale factor to produce a font whose "height" is 'pixels' tall.
+// Height is measured as the distance from the highest ascender to the lowest
+// descender; in other words, it's equivalent to calling stbtt_GetFontVMetrics
+// and computing:
+//       scale = pixels / (ascent - descent)
+// so if you prefer to measure height by the ascent only, use a similar calculation.
+
+extern float stbtt_ScaleForMappingEmToPixels(const stbtt_fontinfo *info, float pixels);
+// computes a scale factor to produce a font whose EM size is mapped to
+// 'pixels' tall. This is probably what traditional APIs compute, but
+// I'm not positive.
+
+extern void stbtt_GetFontVMetrics(const stbtt_fontinfo *info, int *ascent, int *descent, int *lineGap);
+// ascent is the coordinate above the baseline the font extends; descent
+// is the coordinate below the baseline the font extends (i.e. it is typically negative)
+// lineGap is the spacing between one row's descent and the next row's ascent...
+// so you should advance the vertical position by "*ascent - *descent + *lineGap"
+//   these are expressed in unscaled coordinates, so you must multiply by
+//   the scale factor for a given size
+
+extern void stbtt_GetFontBoundingBox(const stbtt_fontinfo *info, int *x0, int *y0, int *x1, int *y1);
+// the bounding box around all possible characters
+
+extern void stbtt_GetCodepointHMetrics(const stbtt_fontinfo *info, int codepoint, int *advanceWidth, int *leftSideBearing);
+// leftSideBearing is the offset from the current horizontal position to the left edge of the character
+// advanceWidth is the offset from the current horizontal position to the next horizontal position
+//   these are expressed in unscaled coordinates
+
+extern int  stbtt_GetCodepointKernAdvance(const stbtt_fontinfo *info, int ch1, int ch2);
+// an additional amount to add to the 'advance' value between ch1 and ch2
+
+extern int stbtt_GetCodepointBox(const stbtt_fontinfo *info, int codepoint, int *x0, int *y0, int *x1, int *y1);
+// Gets the bounding box of the visible part of the glyph, in unscaled coordinates
+
+extern void stbtt_GetGlyphHMetrics(const stbtt_fontinfo *info, int glyph_index, int *advanceWidth, int *leftSideBearing);
+extern int  stbtt_GetGlyphKernAdvance(const stbtt_fontinfo *info, int glyph1, int glyph2);
+extern int  stbtt_GetGlyphBox(const stbtt_fontinfo *info, int glyph_index, int *x0, int *y0, int *x1, int *y1);
+// as above, but takes one or more glyph indices for greater efficiency
+
+
+//////////////////////////////////////////////////////////////////////////////
+//
+// GLYPH SHAPES (you probably don't need these, but they have to go before
+// the bitmaps for C declaration-order reasons)
+//
+
+#ifndef STBTT_vmove // you can predefine these to use different values (but why?)
+   enum {
+      STBTT_vmove=1,
+      STBTT_vline,
+      STBTT_vcurve
+   };
+#endif
+
+#ifndef stbtt_vertex // you can predefine this to use different values
+                   // (we share this with other code at RAD)
+   #define stbtt_vertex_type short // can't use stbtt_int16 because that's not visible in the header file
+   typedef struct
+   {
+      stbtt_vertex_type x,y,cx,cy;
+      unsigned char type,padding;
+   } stbtt_vertex;
+#endif
+
+extern int stbtt_IsGlyphEmpty(const stbtt_fontinfo *info, int glyph_index);
+// returns non-zero if nothing is drawn for this glyph
+
+extern int stbtt_GetCodepointShape(const stbtt_fontinfo *info, int unicode_codepoint, stbtt_vertex **vertices);
+extern int stbtt_GetGlyphShape(const stbtt_fontinfo *info, int glyph_index, stbtt_vertex **vertices);
+// returns # of vertices and fills *vertices with the pointer to them
+//   these are expressed in "unscaled" coordinates
+//
+// The shape is a series of countours. Each one starts with
+// a STBTT_moveto, then consists of a series of mixed
+// STBTT_lineto and STBTT_curveto segments. A lineto
+// draws a line from previous endpoint to its x,y; a curveto
+// draws a quadratic bezier from previous endpoint to
+// its x,y, using cx,cy as the bezier control point.
+
+extern void stbtt_FreeShape(const stbtt_fontinfo *info, stbtt_vertex *vertices);
+// frees the data allocated above
+
+//////////////////////////////////////////////////////////////////////////////
+//
+// BITMAP RENDERING
+//
+
+extern void stbtt_FreeBitmap(unsigned char *bitmap, void *userdata);
+// frees the bitmap allocated below
+
+extern unsigned char *stbtt_GetCodepointBitmap(const stbtt_fontinfo *info, float scale_x, float scale_y, int codepoint, int *width, int *height, int *xoff, int *yoff);
+// allocates a large-enough single-channel 8bpp bitmap and renders the
+// specified character/glyph at the specified scale into it, with
+// antialiasing. 0 is no coverage (transparent), 255 is fully covered (opaque).
+// *width & *height are filled out with the width & height of the bitmap,
+// which is stored left-to-right, top-to-bottom.
+//
+// xoff/yoff are the offset it pixel space from the glyph origin to the top-left of the bitmap
+
+extern unsigned char *stbtt_GetCodepointBitmapSubpixel(const stbtt_fontinfo *info, float scale_x, float scale_y, float shift_x, float shift_y, int codepoint, int *width, int *height, int *xoff, int *yoff);
+// the same as stbtt_GetCodepoitnBitmap, but you can specify a subpixel
+// shift for the character
+
+extern void stbtt_MakeCodepointBitmap(const stbtt_fontinfo *info, unsigned char *output, int out_w, int out_h, int out_stride, float scale_x, float scale_y, int codepoint);
+// the same as stbtt_GetCodepointBitmap, but you pass in storage for the bitmap
+// in the form of 'output', with row spacing of 'out_stride' bytes. the bitmap
+// is clipped to out_w/out_h bytes. Call stbtt_GetCodepointBitmapBox to get the
+// width and height and positioning info for it first.
+
+extern void stbtt_MakeCodepointBitmapSubpixel(const stbtt_fontinfo *info, unsigned char *output, int out_w, int out_h, int out_stride, float scale_x, float scale_y, float shift_x, float shift_y, int codepoint);
+// same as stbtt_MakeCodepointBitmap, but you can specify a subpixel
+// shift for the character
+
+extern void stbtt_GetCodepointBitmapBox(const stbtt_fontinfo *font, int codepoint, float scale_x, float scale_y, int *ix0, int *iy0, int *ix1, int *iy1);
+// get the bbox of the bitmap centered around the glyph origin; so the
+// bitmap width is ix1-ix0, height is iy1-iy0, and location to place
+// the bitmap top left is (leftSideBearing*scale,iy0).
+// (Note that the bitmap uses y-increases-down, but the shape uses
+// y-increases-up, so CodepointBitmapBox and CodepointBox are inverted.)
+
+extern void stbtt_GetCodepointBitmapBoxSubpixel(const stbtt_fontinfo *font, int codepoint, float scale_x, float scale_y, float shift_x, float shift_y, int *ix0, int *iy0, int *ix1, int *iy1);
+// same as stbtt_GetCodepointBitmapBox, but you can specify a subpixel
+// shift for the character
+
+// the following functions are equivalent to the above functions, but operate
+// on glyph indices instead of Unicode codepoints (for efficiency)
+extern unsigned char *stbtt_GetGlyphBitmap(const stbtt_fontinfo *info, float scale_x, float scale_y, int glyph, int *width, int *height, int *xoff, int *yoff);
+extern unsigned char *stbtt_GetGlyphBitmapSubpixel(const stbtt_fontinfo *info, float scale_x, float scale_y, float shift_x, float shift_y, int glyph, int *width, int *height, int *xoff, int *yoff);
+extern void stbtt_MakeGlyphBitmap(const stbtt_fontinfo *info, unsigned char *output, int out_w, int out_h, int out_stride, float scale_x, float scale_y, int glyph);
+extern void stbtt_MakeGlyphBitmapSubpixel(const stbtt_fontinfo *info, unsigned char *output, int out_w, int out_h, int out_stride, float scale_x, float scale_y, float shift_x, float shift_y, int glyph);
+extern void stbtt_GetGlyphBitmapBox(const stbtt_fontinfo *font, int glyph, float scale_x, float scale_y, int *ix0, int *iy0, int *ix1, int *iy1);
+extern void stbtt_GetGlyphBitmapBoxSubpixel(const stbtt_fontinfo *font, int glyph, float scale_x, float scale_y,float shift_x, float shift_y, int *ix0, int *iy0, int *ix1, int *iy1);
+
+
+// @TODO: don't expose this structure
+typedef struct
+{
+   int w,h,stride;
+   unsigned char *pixels;
+} stbtt__bitmap;
+
+extern void stbtt_Rasterize(stbtt__bitmap *result, float flatness_in_pixels, stbtt_vertex *vertices, int num_verts, float scale_x, float scale_y, float shift_x, float shift_y, int x_off, int y_off, int invert, void *userdata);
+
+//////////////////////////////////////////////////////////////////////////////
+//
+// Finding the right font...
+//
+// You should really just solve this offline, keep your own tables
+// of what font is what, and don't try to get it out of the .ttf file.
+// That's because getting it out of the .ttf file is really hard, because
+// the names in the file can appear in many possible encodings, in many
+// possible languages, and e.g. if you need a case-insensitive comparison,
+// the details of that depend on the encoding & language in a complex way
+// (actually underspecified in truetype, but also gigantic).
+//
+// But you can use the provided functions in two possible ways:
+//     stbtt_FindMatchingFont() will use *case-sensitive* comparisons on
+//             unicode-encoded names to try to find the font you want;
+//             you can run this before calling stbtt_InitFont()
+//
+//     stbtt_GetFontNameString() lets you get any of the various strings
+//             from the file yourself and do your own comparisons on them.
+//             You have to have called stbtt_InitFont() first.
+
+
+extern int stbtt_FindMatchingFont(const unsigned char *fontdata, const char *name, int flags);
+// returns the offset (not index) of the font that matches, or -1 if none
+//   if you use STBTT_MACSTYLE_DONTCARE, use a font name like "Arial Bold".
+//   if you use any other flag, use a font name like "Arial"; this checks
+//     the 'macStyle' header field; i don't know if fonts set this consistently
+#define STBTT_MACSTYLE_DONTCARE     0
+#define STBTT_MACSTYLE_BOLD         1
+#define STBTT_MACSTYLE_ITALIC       2
+#define STBTT_MACSTYLE_UNDERSCORE   4
+#define STBTT_MACSTYLE_NONE         8   // <= not same as 0, this makes us check the bitfield is 0
+
+extern int stbtt_CompareUTF8toUTF16_bigendian(const char *s1, int len1, const char *s2, int len2);
+// returns 1/0 whether the first string interpreted as utf8 is identical to
+// the second string interpreted as big-endian utf16... useful for strings from next func
+
+extern const char *stbtt_GetFontNameString(const stbtt_fontinfo *font, int *length, int platformID, int encodingID, int languageID, int nameID);
+// returns the string (which may be big-endian double byte, e.g. for unicode)
+// and puts the length in bytes in *length.
+//
+// some of the values for the IDs are below; for more see the truetype spec:
+//     http://developer.apple.com/textfonts/TTRefMan/RM06/Chap6name.html
+//     http://www.microsoft.com/typography/otspec/name.htm
+
+enum { // platformID
+   STBTT_PLATFORM_ID_UNICODE   =0,
+   STBTT_PLATFORM_ID_MAC       =1,
+   STBTT_PLATFORM_ID_ISO       =2,
+   STBTT_PLATFORM_ID_MICROSOFT =3
+};
+
+enum { // encodingID for STBTT_PLATFORM_ID_UNICODE
+   STBTT_UNICODE_EID_UNICODE_1_0    =0,
+   STBTT_UNICODE_EID_UNICODE_1_1    =1,
+   STBTT_UNICODE_EID_ISO_10646      =2,
+   STBTT_UNICODE_EID_UNICODE_2_0_BMP=3,
+   STBTT_UNICODE_EID_UNICODE_2_0_FULL=4
+};
+
+enum { // encodingID for STBTT_PLATFORM_ID_MICROSOFT
+   STBTT_MS_EID_SYMBOL        =0,
+   STBTT_MS_EID_UNICODE_BMP   =1,
+   STBTT_MS_EID_SHIFTJIS      =2,
+   STBTT_MS_EID_UNICODE_FULL  =10
+};
+
+enum { // encodingID for STBTT_PLATFORM_ID_MAC; same as Script Manager codes
+   STBTT_MAC_EID_ROMAN        =0,   STBTT_MAC_EID_ARABIC       =4,
+   STBTT_MAC_EID_JAPANESE     =1,   STBTT_MAC_EID_HEBREW       =5,
+   STBTT_MAC_EID_CHINESE_TRAD =2,   STBTT_MAC_EID_GREEK        =6,
+   STBTT_MAC_EID_KOREAN       =3,   STBTT_MAC_EID_RUSSIAN      =7
+};
+
+enum { // languageID for STBTT_PLATFORM_ID_MICROSOFT; same as LCID...
+       // problematic because there are e.g. 16 english LCIDs and 16 arabic LCIDs
+   STBTT_MS_LANG_ENGLISH     =0x0409,   STBTT_MS_LANG_ITALIAN     =0x0410,
+   STBTT_MS_LANG_CHINESE     =0x0804,   STBTT_MS_LANG_JAPANESE    =0x0411,
+   STBTT_MS_LANG_DUTCH       =0x0413,   STBTT_MS_LANG_KOREAN      =0x0412,
+   STBTT_MS_LANG_FRENCH      =0x040c,   STBTT_MS_LANG_RUSSIAN     =0x0419,
+   STBTT_MS_LANG_GERMAN      =0x0407,   STBTT_MS_LANG_SPANISH     =0x0409,
+   STBTT_MS_LANG_HEBREW      =0x040d,   STBTT_MS_LANG_SWEDISH     =0x041D
+};
+
+enum { // languageID for STBTT_PLATFORM_ID_MAC
+   STBTT_MAC_LANG_ENGLISH      =0 ,   STBTT_MAC_LANG_JAPANESE     =11,
+   STBTT_MAC_LANG_ARABIC       =12,   STBTT_MAC_LANG_KOREAN       =23,
+   STBTT_MAC_LANG_DUTCH        =4 ,   STBTT_MAC_LANG_RUSSIAN      =32,
+   STBTT_MAC_LANG_FRENCH       =1 ,   STBTT_MAC_LANG_SPANISH      =6 ,
+   STBTT_MAC_LANG_GERMAN       =2 ,   STBTT_MAC_LANG_SWEDISH      =5 ,
+   STBTT_MAC_LANG_HEBREW       =10,   STBTT_MAC_LANG_CHINESE_SIMPLIFIED =33,
+   STBTT_MAC_LANG_ITALIAN      =3 ,   STBTT_MAC_LANG_CHINESE_TRAD =19
+};
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // __STB_INCLUDE_STB_TRUETYPE_H__
+
+///////////////////////////////////////////////////////////////////////////////
+///////////////////////////////////////////////////////////////////////////////
+////
+////   IMPLEMENTATION
+////
+////
+
+#ifdef STB_TRUETYPE_IMPLEMENTATION
+
+#ifndef STBTT_MAX_OVERSAMPLE
+#define STBTT_MAX_OVERSAMPLE   8
+#endif
+
+typedef int stbtt__test_oversample_pow2[(STBTT_MAX_OVERSAMPLE & (STBTT_MAX_OVERSAMPLE-1)) == 0 ? 1 : -1];
+
+//////////////////////////////////////////////////////////////////////////
+//
+// accessors to parse data from file
+//
+
+// on platforms that don't allow misaligned reads, if we want to allow
+// truetype fonts that aren't padded to alignment, define ALLOW_UNALIGNED_TRUETYPE
+
+#define ttBYTE(p)     (* (stbtt_uint8 *) (p))
+#define ttCHAR(p)     (* (stbtt_int8 *) (p))
+#define ttFixed(p)    ttLONG(p)
+
+#if defined(STB_TRUETYPE_BIGENDIAN) && !defined(ALLOW_UNALIGNED_TRUETYPE)
+
+   #define ttUSHORT(p)   (* (stbtt_uint16 *) (p))
+   #define ttSHORT(p)    (* (stbtt_int16 *) (p))
+   #define ttULONG(p)    (* (stbtt_uint32 *) (p))
+   #define ttLONG(p)     (* (stbtt_int32 *) (p))
+
+#else
+
+   stbtt_uint16 ttUSHORT(const stbtt_uint8 *p) { return p[0]*256 + p[1]; }
+   stbtt_int16 ttSHORT(const stbtt_uint8 *p)   { return p[0]*256 + p[1]; }
+   stbtt_uint32 ttULONG(const stbtt_uint8 *p)  { return (p[0]<<24) + (p[1]<<16) + (p[2]<<8) + p[3]; }
+   stbtt_int32 ttLONG(const stbtt_uint8 *p)    { return (p[0]<<24) + (p[1]<<16) + (p[2]<<8) + p[3]; }
+
+#endif
+
+#define stbtt_tag4(p,c0,c1,c2,c3) ((p)[0] == (c0) && (p)[1] == (c1) && (p)[2] == (c2) && (p)[3] == (c3))
+#define stbtt_tag(p,str)           stbtt_tag4(p,str[0],str[1],str[2],str[3])
+
+static int stbtt__isfont(const stbtt_uint8 *font)
+{
+   // check the version number
+   if (stbtt_tag4(font, '1',0,0,0))  return 1; // TrueType 1
+   if (stbtt_tag(font, "typ1"))   return 1; // TrueType with type 1 font -- we don't support this!
+   if (stbtt_tag(font, "OTTO"))   return 1; // OpenType with CFF
+   if (stbtt_tag4(font, 0,1,0,0)) return 1; // OpenType 1.0
+   return 0;
+}
+
+// @OPTIMIZE: binary search
+static stbtt_uint32 stbtt__find_table(stbtt_uint8 *data, stbtt_uint32 fontstart, const char *tag)
+{
+   stbtt_int32 num_tables = ttUSHORT(data+fontstart+4);
+   stbtt_uint32 tabledir = fontstart + 12;
+   stbtt_int32 i;
+   for (i=0; i < num_tables; ++i) {
+      stbtt_uint32 loc = tabledir + 16*i;
+      if (stbtt_tag(data+loc+0, tag))
+         return ttULONG(data+loc+8);
+   }
+   return 0;
+}
+
+int stbtt_GetFontOffsetForIndex(const unsigned char *font_collection, int index)
+{
+   // if it's just a font, there's only one valid index
+   if (stbtt__isfont(font_collection))
+      return index == 0 ? 0 : -1;
+
+   // check if it's a TTC
+   if (stbtt_tag(font_collection, "ttcf")) {
+      // version 1?
+      if (ttULONG(font_collection+4) == 0x00010000 || ttULONG(font_collection+4) == 0x00020000) {
+         stbtt_int32 n = ttLONG(font_collection+8);
+         if (index >= n)
+            return -1;
+         return ttULONG(font_collection+12+index*14);
+      }
+   }
+   return -1;
+}
+
+int stbtt_InitFont(stbtt_fontinfo *info, const unsigned char *data2, int fontstart)
+{
+   stbtt_uint8 *data = (stbtt_uint8 *) data2;
+   stbtt_uint32 cmap, t;
+   stbtt_int32 i,numTables;
+
+   info->data = data;
+   info->fontstart = fontstart;
+
+   cmap = stbtt__find_table(data, fontstart, "cmap");       // required
+   info->loca = stbtt__find_table(data, fontstart, "loca"); // required
+   info->head = stbtt__find_table(data, fontstart, "head"); // required
+   info->glyf = stbtt__find_table(data, fontstart, "glyf"); // required
+   info->hhea = stbtt__find_table(data, fontstart, "hhea"); // required
+   info->hmtx = stbtt__find_table(data, fontstart, "hmtx"); // required
+   info->kern = stbtt__find_table(data, fontstart, "kern"); // not required
+   if (!cmap || !info->loca || !info->head || !info->glyf || !info->hhea || !info->hmtx)
+      return 0;
+
+   t = stbtt__find_table(data, fontstart, "maxp");
+   if (t)
+      info->numGlyphs = ttUSHORT(data+t+4);
+   else
+      info->numGlyphs = 0xffff;
+
+   // find a cmap encoding table we understand *now* to avoid searching
+   // later. (todo: could make this installable)
+   // the same regardless of glyph.
+   numTables = ttUSHORT(data + cmap + 2);
+   info->index_map = 0;
+   for (i=0; i < numTables; ++i) {
+      stbtt_uint32 encoding_record = cmap + 4 + 8 * i;
+      // find an encoding we understand:
+      switch(ttUSHORT(data+encoding_record)) {
+         case STBTT_PLATFORM_ID_MICROSOFT:
+            switch (ttUSHORT(data+encoding_record+2)) {
+               case STBTT_MS_EID_UNICODE_BMP:
+               case STBTT_MS_EID_UNICODE_FULL:
+                  // MS/Unicode
+                  info->index_map = cmap + ttULONG(data+encoding_record+4);
+                  break;
+            }
+            break;
+        case STBTT_PLATFORM_ID_UNICODE:
+            // Mac/iOS has these
+            // all the encodingIDs are unicode, so we don't bother to check it
+            info->index_map = cmap + ttULONG(data+encoding_record+4);
+            break;
+      }
+   }
+   if (info->index_map == 0)
+      return 0;
+
+   info->indexToLocFormat = ttUSHORT(data+info->head + 50);
+   return 1;
+}
+
+int stbtt_FindGlyphIndex(const stbtt_fontinfo *info, int unicode_codepoint)
+{
+   stbtt_uint8 *data = info->data;
+   stbtt_uint32 index_map = info->index_map;
+
+   stbtt_uint16 format = ttUSHORT(data + index_map + 0);
+   if (format == 0) { // apple byte encoding
+      stbtt_int32 bytes = ttUSHORT(data + index_map + 2);
+      if (unicode_codepoint < bytes-6)
+         return ttBYTE(data + index_map + 6 + unicode_codepoint);
+      return 0;
+   } else if (format == 6) {
+      stbtt_uint32 first = ttUSHORT(data + index_map + 6);
+      stbtt_uint32 count = ttUSHORT(data + index_map + 8);
+      if ((stbtt_uint32) unicode_codepoint >= first && (stbtt_uint32) unicode_codepoint < first+count)
+         return ttUSHORT(data + index_map + 10 + (unicode_codepoint - first)*2);
+      return 0;
+   } else if (format == 2) {
+      STBTT_assert(0); // @TODO: high-byte mapping for japanese/chinese/korean
+      return 0;
+   } else if (format == 4) { // standard mapping for windows fonts: binary search collection of ranges
+      stbtt_uint16 segcount = ttUSHORT(data+index_map+6) >> 1;
+      stbtt_uint16 searchRange = ttUSHORT(data+index_map+8) >> 1;
+      stbtt_uint16 entrySelector = ttUSHORT(data+index_map+10);
+      stbtt_uint16 rangeShift = ttUSHORT(data+index_map+12) >> 1;
+      stbtt_uint16 item, offset, start, end;
+
+      // do a binary search of the segments
+      stbtt_uint32 endCount = index_map + 14;
+      stbtt_uint32 search = endCount;
+
+      if (unicode_codepoint > 0xffff)
+         return 0;
+
+      // they lie from endCount .. endCount + segCount
+      // but searchRange is the nearest power of two, so...
+      if (unicode_codepoint >= ttUSHORT(data + search + rangeShift*2))
+         search += rangeShift*2;
+
+      // now decrement to bias correctly to find smallest
+      search -= 2;
+      while (entrySelector) {
+         searchRange >>= 1;
+         start = ttUSHORT(data + search + searchRange*2 + segcount*2 + 2);
+         end = ttUSHORT(data + search + searchRange*2);
+         if (unicode_codepoint > end)
+            search += searchRange*2;
+         --entrySelector;
+      }
+      search += 2;
+
+      item = (stbtt_uint16) ((search - endCount) >> 1);
+
+      STBTT_assert(unicode_codepoint <= ttUSHORT(data + endCount + 2*item));
+      start = ttUSHORT(data + index_map + 14 + segcount*2 + 2 + 2*item);
+      end = ttUSHORT(data + index_map + 14 + 2 + 2*item);
+      if (unicode_codepoint < start)
+         return 0;
+
+      offset = ttUSHORT(data + index_map + 14 + segcount*6 + 2 + 2*item);
+      if (offset == 0)
+         return (stbtt_uint16) (unicode_codepoint + ttSHORT(data + index_map + 14 + segcount*4 + 2 + 2*item));
+
+      return ttUSHORT(data + offset + (unicode_codepoint-start)*2 + index_map + 14 + segcount*6 + 2 + 2*item);
+   } else if (format == 12 || format == 13) {
+      stbtt_uint32 ngroups = ttULONG(data+index_map+12);
+      stbtt_int32 low,high;
+      low = 0; high = (stbtt_int32)ngroups;
+      // Binary search the right group.
+      while (low < high) {
+         stbtt_int32 mid = low + ((high-low) >> 1); // rounds down, so low <= mid < high
+         stbtt_uint32 start_char = ttULONG(data+index_map+16+mid*12);
+         stbtt_uint32 end_char = ttULONG(data+index_map+16+mid*12+4);
+         if ((stbtt_uint32) unicode_codepoint < start_char)
+            high = mid;
+         else if ((stbtt_uint32) unicode_codepoint > end_char)
+            low = mid+1;
+         else {
+            stbtt_uint32 start_glyph = ttULONG(data+index_map+16+mid*12+8);
+            if (format == 12)
+               return start_glyph + unicode_codepoint-start_char;
+            else // format == 13
+               return start_glyph;
+         }
+      }
+      return 0; // not found
+   }
+   // @TODO
+   STBTT_assert(0);
+   return 0;
+}
+
+int stbtt_GetCodepointShape(const stbtt_fontinfo *info, int unicode_codepoint, stbtt_vertex **vertices)
+{
+   return stbtt_GetGlyphShape(info, stbtt_FindGlyphIndex(info, unicode_codepoint), vertices);
+}
+
+static void stbtt_setvertex(stbtt_vertex *v, stbtt_uint8 type, stbtt_int32 x, stbtt_int32 y, stbtt_int32 cx, stbtt_int32 cy)
+{
+   v->type = type;
+   v->x = (stbtt_int16) x;
+   v->y = (stbtt_int16) y;
+   v->cx = (stbtt_int16) cx;
+   v->cy = (stbtt_int16) cy;
+}
+
+static int stbtt__GetGlyfOffset(const stbtt_fontinfo *info, int glyph_index)
+{
+   int g1,g2;
+
+   if (glyph_index >= info->numGlyphs) return -1; // glyph index out of range
+   if (info->indexToLocFormat >= 2)    return -1; // unknown index->glyph map format
+
+   if (info->indexToLocFormat == 0) {
+      g1 = info->glyf + ttUSHORT(info->data + info->loca + glyph_index * 2) * 2;
+      g2 = info->glyf + ttUSHORT(info->data + info->loca + glyph_index * 2 + 2) * 2;
+   } else {
+      g1 = info->glyf + ttULONG (info->data + info->loca + glyph_index * 4);
+      g2 = info->glyf + ttULONG (info->data + info->loca + glyph_index * 4 + 4);
+   }
+
+   return g1==g2 ? -1 : g1; // if length is 0, return -1
+}
+
+int stbtt_GetGlyphBox(const stbtt_fontinfo *info, int glyph_index, int *x0, int *y0, int *x1, int *y1)
+{
+   int g = stbtt__GetGlyfOffset(info, glyph_index);
+   if (g < 0) return 0;
+
+   if (x0) *x0 = ttSHORT(info->data + g + 2);
+   if (y0) *y0 = ttSHORT(info->data + g + 4);
+   if (x1) *x1 = ttSHORT(info->data + g + 6);
+   if (y1) *y1 = ttSHORT(info->data + g + 8);
+   return 1;
+}
+
+int stbtt_GetCodepointBox(const stbtt_fontinfo *info, int codepoint, int *x0, int *y0, int *x1, int *y1)
+{
+   return stbtt_GetGlyphBox(info, stbtt_FindGlyphIndex(info,codepoint), x0,y0,x1,y1);
+}
+
+int stbtt_IsGlyphEmpty(const stbtt_fontinfo *info, int glyph_index)
+{
+   stbtt_int16 numberOfContours;
+   int g = stbtt__GetGlyfOffset(info, glyph_index);
+   if (g < 0) return 1;
+   numberOfContours = ttSHORT(info->data + g);
+   return numberOfContours == 0;
+}
+
+static int stbtt__close_shape(stbtt_vertex *vertices, int num_vertices, int was_off, int start_off,
+    stbtt_int32 sx, stbtt_int32 sy, stbtt_int32 scx, stbtt_int32 scy, stbtt_int32 cx, stbtt_int32 cy)
+{
+   if (start_off) {
+      if (was_off)
+         stbtt_setvertex(&vertices[num_vertices++], STBTT_vcurve, (cx+scx)>>1, (cy+scy)>>1, cx,cy);
+      stbtt_setvertex(&vertices[num_vertices++], STBTT_vcurve, sx,sy,scx,scy);
+   } else {
+      if (was_off)
+         stbtt_setvertex(&vertices[num_vertices++], STBTT_vcurve,sx,sy,cx,cy);
+      else
+         stbtt_setvertex(&vertices[num_vertices++], STBTT_vline,sx,sy,0,0);
+   }
+   return num_vertices;
+}
+
+int stbtt_GetGlyphShape(const stbtt_fontinfo *info, int glyph_index, stbtt_vertex **pvertices)
+{
+   stbtt_int16 numberOfContours;
+   stbtt_uint8 *endPtsOfContours;
+   stbtt_uint8 *data = info->data;
+   stbtt_vertex *vertices=0;
+   int num_vertices=0;
+   int g = stbtt__GetGlyfOffset(info, glyph_index);
+
+   *pvertices = NULL;
+
+   if (g < 0) return 0;
+
+   numberOfContours = ttSHORT(data + g);
+
+   if (numberOfContours > 0) {
+      stbtt_uint8 flags=0,flagcount;
+      stbtt_int32 ins, i,j=0,m,n, next_move, was_off=0, off, start_off=0;
+      stbtt_int32 x,y,cx,cy,sx,sy, scx,scy;
+      stbtt_uint8 *points;
+      endPtsOfContours = (data + g + 10);
+      ins = ttUSHORT(data + g + 10 + numberOfContours * 2);
+      points = data + g + 10 + numberOfContours * 2 + 2 + ins;
+
+      n = 1+ttUSHORT(endPtsOfContours + numberOfContours*2-2);
+
+      m = n + 2*numberOfContours;  // a loose bound on how many vertices we might need
+      vertices = (stbtt_vertex *) STBTT_malloc(m * sizeof(vertices[0]), info->userdata);
+      if (vertices == 0)
+         return 0;
+
+      next_move = 0;
+      flagcount=0;
+
+      // in first pass, we load uninterpreted data into the allocated array
+      // above, shifted to the end of the array so we won't overwrite it when
+      // we create our final data starting from the front
+
+      off = m - n; // starting offset for uninterpreted data, regardless of how m ends up being calculated
+
+      // first load flags
+
+      for (i=0; i < n; ++i) {
+         if (flagcount == 0) {
+            flags = *points++;
+            if (flags & 8)
+               flagcount = *points++;
+         } else
+            --flagcount;
+         vertices[off+i].type = flags;
+      }
+
+      // now load x coordinates
+      x=0;
+      for (i=0; i < n; ++i) {
+         flags = vertices[off+i].type;
+         if (flags & 2) {
+            stbtt_int16 dx = *points++;
+            x += (flags & 16) ? dx : -dx; // ???
+         } else {
+            if (!(flags & 16)) {
+               x = x + (stbtt_int16) (points[0]*256 + points[1]);
+               points += 2;
+            }
+         }
+         vertices[off+i].x = (stbtt_int16) x;
+      }
+
+      // now load y coordinates
+      y=0;
+      for (i=0; i < n; ++i) {
+         flags = vertices[off+i].type;
+         if (flags & 4) {
+            stbtt_int16 dy = *points++;
+            y += (flags & 32) ? dy : -dy; // ???
+         } else {
+            if (!(flags & 32)) {
+               y = y + (stbtt_int16) (points[0]*256 + points[1]);
+               points += 2;
+            }
+         }
+         vertices[off+i].y = (stbtt_int16) y;
+      }
+
+      // now convert them to our format
+      num_vertices=0;
+      sx = sy = cx = cy = scx = scy = 0;
+      for (i=0; i < n; ++i) {
+         flags = vertices[off+i].type;
+         x     = (stbtt_int16) vertices[off+i].x;
+         y     = (stbtt_int16) vertices[off+i].y;
+
+         if (next_move == i) {
+            if (i != 0)
+               num_vertices = stbtt__close_shape(vertices, num_vertices, was_off, start_off, sx,sy,scx,scy,cx,cy);
+
+            // now start the new one               
+            start_off = !(flags & 1);
+            if (start_off) {
+               // if we start off with an off-curve point, then when we need to find a point on the curve
+               // where we can start, and we need to save some state for when we wraparound.
+               scx = x;
+               scy = y;
+               if (!(vertices[off+i+1].type & 1)) {
+                  // next point is also a curve point, so interpolate an on-point curve
+                  sx = (x + (stbtt_int32) vertices[off+i+1].x) >> 1;
+                  sy = (y + (stbtt_int32) vertices[off+i+1].y) >> 1;
+               } else {
+                  // otherwise just use the next point as our start point
+                  sx = (stbtt_int32) vertices[off+i+1].x;
+                  sy = (stbtt_int32) vertices[off+i+1].y;
+                  ++i; // we're using point i+1 as the starting point, so skip it
+               }
+            } else {
+               sx = x;
+               sy = y;
+            }
+            stbtt_setvertex(&vertices[num_vertices++], STBTT_vmove,sx,sy,0,0);
+            was_off = 0;
+            next_move = 1 + ttUSHORT(endPtsOfContours+j*2);
+            ++j;
+         } else {
+            if (!(flags & 1)) { // if it's a curve
+               if (was_off) // two off-curve control points in a row means interpolate an on-curve midpoint
+                  stbtt_setvertex(&vertices[num_vertices++], STBTT_vcurve, (cx+x)>>1, (cy+y)>>1, cx, cy);
+               cx = x;
+               cy = y;
+               was_off = 1;
+            } else {
+               if (was_off)
+                  stbtt_setvertex(&vertices[num_vertices++], STBTT_vcurve, x,y, cx, cy);
+               else
+                  stbtt_setvertex(&vertices[num_vertices++], STBTT_vline, x,y,0,0);
+               was_off = 0;
+            }
+         }
+      }
+      num_vertices = stbtt__close_shape(vertices, num_vertices, was_off, start_off, sx,sy,scx,scy,cx,cy);
+   } else if (numberOfContours == -1) {
+      // Compound shapes.
+      int more = 1;
+      stbtt_uint8 *comp = data + g + 10;
+      num_vertices = 0;
+      vertices = 0;
+      while (more) {
+         stbtt_uint16 flags, gidx;
+         int comp_num_verts = 0, i;
+         stbtt_vertex *comp_verts = 0, *tmp = 0;
+         float mtx[6] = {1,0,0,1,0,0}, m, n;
+         
+         flags = ttSHORT(comp); comp+=2;
+         gidx = ttSHORT(comp); comp+=2;
+
+         if (flags & 2) { // XY values
+            if (flags & 1) { // shorts
+               mtx[4] = ttSHORT(comp); comp+=2;
+               mtx[5] = ttSHORT(comp); comp+=2;
+            } else {
+               mtx[4] = ttCHAR(comp); comp+=1;
+               mtx[5] = ttCHAR(comp); comp+=1;
+            }
+         }
+         else {
+            // @TODO handle matching point
+            STBTT_assert(0);
+         }
+         if (flags & (1<<3)) { // WE_HAVE_A_SCALE
+            mtx[0] = mtx[3] = ttSHORT(comp)/16384.0f; comp+=2;
+            mtx[1] = mtx[2] = 0;
+         } else if (flags & (1<<6)) { // WE_HAVE_AN_X_AND_YSCALE
+            mtx[0] = ttSHORT(comp)/16384.0f; comp+=2;
+            mtx[1] = mtx[2] = 0;
+            mtx[3] = ttSHORT(comp)/16384.0f; comp+=2;
+         } else if (flags & (1<<7)) { // WE_HAVE_A_TWO_BY_TWO
+            mtx[0] = ttSHORT(comp)/16384.0f; comp+=2;
+            mtx[1] = ttSHORT(comp)/16384.0f; comp+=2;
+            mtx[2] = ttSHORT(comp)/16384.0f; comp+=2;
+            mtx[3] = ttSHORT(comp)/16384.0f; comp+=2;
+         }
+         
+         // Find transformation scales.
+         m = (float) STBTT_sqrt(mtx[0]*mtx[0] + mtx[1]*mtx[1]);
+         n = (float) STBTT_sqrt(mtx[2]*mtx[2] + mtx[3]*mtx[3]);
+
+         // Get indexed glyph.
+         comp_num_verts = stbtt_GetGlyphShape(info, gidx, &comp_verts);
+         if (comp_num_verts > 0) {
+            // Transform vertices.
+            for (i = 0; i < comp_num_verts; ++i) {
+               stbtt_vertex* v = &comp_verts[i];
+               stbtt_vertex_type x,y;
+               x=v->x; y=v->y;
+               v->x = (stbtt_vertex_type)(m * (mtx[0]*x + mtx[2]*y + mtx[4]));
+               v->y = (stbtt_vertex_type)(n * (mtx[1]*x + mtx[3]*y + mtx[5]));
+               x=v->cx; y=v->cy;
+               v->cx = (stbtt_vertex_type)(m * (mtx[0]*x + mtx[2]*y + mtx[4]));
+               v->cy = (stbtt_vertex_type)(n * (mtx[1]*x + mtx[3]*y + mtx[5]));
+            }
+            // Append vertices.
+            tmp = (stbtt_vertex*)STBTT_malloc((num_vertices+comp_num_verts)*sizeof(stbtt_vertex), info->userdata);
+            if (!tmp) {
+               if (vertices) STBTT_free(vertices, info->userdata);
+               if (comp_verts) STBTT_free(comp_verts, info->userdata);
+               return 0;
+            }
+            if (num_vertices > 0) STBTT_memcpy(tmp, vertices, num_vertices*sizeof(stbtt_vertex));
+            STBTT_memcpy(tmp+num_vertices, comp_verts, comp_num_verts*sizeof(stbtt_vertex));
+            if (vertices) STBTT_free(vertices, info->userdata);
+            vertices = tmp;
+            STBTT_free(comp_verts, info->userdata);
+            num_vertices += comp_num_verts;
+         }
+         // More components ?
+         more = flags & (1<<5);
+      }
+   } else if (numberOfContours < 0) {
+      // @TODO other compound variations?
+      STBTT_assert(0);
+   } else {
+      // numberOfCounters == 0, do nothing
+   }
+
+   *pvertices = vertices;
+   return num_vertices;
+}
+
+void stbtt_GetGlyphHMetrics(const stbtt_fontinfo *info, int glyph_index, int *advanceWidth, int *leftSideBearing)
+{
+   stbtt_uint16 numOfLongHorMetrics = ttUSHORT(info->data+info->hhea + 34);
+   if (glyph_index < numOfLongHorMetrics) {
+      if (advanceWidth)     *advanceWidth    = ttSHORT(info->data + info->hmtx + 4*glyph_index);
+      if (leftSideBearing)  *leftSideBearing = ttSHORT(info->data + info->hmtx + 4*glyph_index + 2);
+   } else {
+      if (advanceWidth)     *advanceWidth    = ttSHORT(info->data + info->hmtx + 4*(numOfLongHorMetrics-1));
+      if (leftSideBearing)  *leftSideBearing = ttSHORT(info->data + info->hmtx + 4*numOfLongHorMetrics + 2*(glyph_index - numOfLongHorMetrics));
+   }
+}
+
+int  stbtt_GetGlyphKernAdvance(const stbtt_fontinfo *info, int glyph1, int glyph2)
+{
+   stbtt_uint8 *data = info->data + info->kern;
+   stbtt_uint32 needle, straw;
+   int l, r, m;
+
+   // we only look at the first table. it must be 'horizontal' and format 0.
+   if (!info->kern)
+      return 0;
+   if (ttUSHORT(data+2) < 1) // number of tables, need at least 1
+      return 0;
+   if (ttUSHORT(data+8) != 1) // horizontal flag must be set in format
+      return 0;
+
+   l = 0;
+   r = ttUSHORT(data+10) - 1;
+   needle = glyph1 << 16 | glyph2;
+   while (l <= r) {
+      m = (l + r) >> 1;
+      straw = ttULONG(data+18+(m*6)); // note: unaligned read
+      if (needle < straw)
+         r = m - 1;
+      else if (needle > straw)
+         l = m + 1;
+      else
+         return ttSHORT(data+22+(m*6));
+   }
+   return 0;
+}
+
+int  stbtt_GetCodepointKernAdvance(const stbtt_fontinfo *info, int ch1, int ch2)
+{
+   if (!info->kern) // if no kerning table, don't waste time looking up both codepoint->glyphs
+      return 0;
+   return stbtt_GetGlyphKernAdvance(info, stbtt_FindGlyphIndex(info,ch1), stbtt_FindGlyphIndex(info,ch2));
+}
+
+void stbtt_GetCodepointHMetrics(const stbtt_fontinfo *info, int codepoint, int *advanceWidth, int *leftSideBearing)
+{
+   stbtt_GetGlyphHMetrics(info, stbtt_FindGlyphIndex(info,codepoint), advanceWidth, leftSideBearing);
+}
+
+void stbtt_GetFontVMetrics(const stbtt_fontinfo *info, int *ascent, int *descent, int *lineGap)
+{
+   if (ascent ) *ascent  = ttSHORT(info->data+info->hhea + 4);
+   if (descent) *descent = ttSHORT(info->data+info->hhea + 6);
+   if (lineGap) *lineGap = ttSHORT(info->data+info->hhea + 8);
+}
+
+void stbtt_GetFontBoundingBox(const stbtt_fontinfo *info, int *x0, int *y0, int *x1, int *y1)
+{
+   *x0 = ttSHORT(info->data + info->head + 36);
+   *y0 = ttSHORT(info->data + info->head + 38);
+   *x1 = ttSHORT(info->data + info->head + 40);
+   *y1 = ttSHORT(info->data + info->head + 42);
+}
+
+float stbtt_ScaleForPixelHeight(const stbtt_fontinfo *info, float height)
+{
+   int fheight = ttSHORT(info->data + info->hhea + 4) - ttSHORT(info->data + info->hhea + 6);
+   return (float) height / fheight;
+}
+
+float stbtt_ScaleForMappingEmToPixels(const stbtt_fontinfo *info, float pixels)
+{
+   int unitsPerEm = ttUSHORT(info->data + info->head + 18);
+   return pixels / unitsPerEm;
+}
+
+void stbtt_FreeShape(const stbtt_fontinfo *info, stbtt_vertex *v)
+{
+   STBTT_free(v, info->userdata);
+}
+
+//////////////////////////////////////////////////////////////////////////////
+//
+// antialiasing software rasterizer
+//
+
+void stbtt_GetGlyphBitmapBoxSubpixel(const stbtt_fontinfo *font, int glyph, float scale_x, float scale_y,float shift_x, float shift_y, int *ix0, int *iy0, int *ix1, int *iy1)
+{
+   int x0,y0,x1,y1;
+   if (!stbtt_GetGlyphBox(font, glyph, &x0,&y0,&x1,&y1)) {
+      // e.g. space character
+      if (ix0) *ix0 = 0;
+      if (iy0) *iy0 = 0;
+      if (ix1) *ix1 = 0;
+      if (iy1) *iy1 = 0;
+   } else {
+      // move to integral bboxes (treating pixels as little squares, what pixels get touched)?
+      if (ix0) *ix0 = STBTT_ifloor( x0 * scale_x + shift_x);
+      if (iy0) *iy0 = STBTT_ifloor(-y1 * scale_y + shift_y);
+      if (ix1) *ix1 = STBTT_iceil ( x1 * scale_x + shift_x);
+      if (iy1) *iy1 = STBTT_iceil (-y0 * scale_y + shift_y);
+   }
+}
+
+void stbtt_GetGlyphBitmapBox(const stbtt_fontinfo *font, int glyph, float scale_x, float scale_y, int *ix0, int *iy0, int *ix1, int *iy1)
+{
+   stbtt_GetGlyphBitmapBoxSubpixel(font, glyph, scale_x, scale_y,0.0f,0.0f, ix0, iy0, ix1, iy1);
+}
+
+void stbtt_GetCodepointBitmapBoxSubpixel(const stbtt_fontinfo *font, int codepoint, float scale_x, float scale_y, float shift_x, float shift_y, int *ix0, int *iy0, int *ix1, int *iy1)
+{
+   stbtt_GetGlyphBitmapBoxSubpixel(font, stbtt_FindGlyphIndex(font,codepoint), scale_x, scale_y,shift_x,shift_y, ix0,iy0,ix1,iy1);
+}
+
+void stbtt_GetCodepointBitmapBox(const stbtt_fontinfo *font, int codepoint, float scale_x, float scale_y, int *ix0, int *iy0, int *ix1, int *iy1)
+{
+   stbtt_GetCodepointBitmapBoxSubpixel(font, codepoint, scale_x, scale_y,0.0f,0.0f, ix0,iy0,ix1,iy1);
+}
+
+typedef struct stbtt__edge {
+   float x0,y0, x1,y1;
+   int invert;
+} stbtt__edge;
+
+typedef struct stbtt__active_edge
+{
+   int x,dx;
+   float ey;
+   struct stbtt__active_edge *next;
+   int valid;
+} stbtt__active_edge;
+
+#define FIXSHIFT   10
+#define FIX        (1 << FIXSHIFT)
+#define FIXMASK    (FIX-1)
+
+static stbtt__active_edge *new_active(stbtt__edge *e, int off_x, float start_point, void *userdata)
+{
+   stbtt__active_edge *z = (stbtt__active_edge *) STBTT_malloc(sizeof(*z), userdata); // @TODO: make a pool of these!!!
+   float dxdy = (e->x1 - e->x0) / (e->y1 - e->y0);
+   STBTT_assert(e->y0 <= start_point);
+   if (!z) return z;
+   // round dx down to avoid going too far
+   if (dxdy < 0)
+      z->dx = -STBTT_ifloor(FIX * -dxdy);
+   else
+      z->dx = STBTT_ifloor(FIX * dxdy);
+   z->x = STBTT_ifloor(FIX * (e->x0 + dxdy * (start_point - e->y0)));
+   z->x -= off_x * FIX;
+   z->ey = e->y1;
+   z->next = 0;
+   z->valid = e->invert ? 1 : -1;
+   return z;
+}
+
+// note: this routine clips fills that extend off the edges... ideally this
+// wouldn't happen, but it could happen if the truetype glyph bounding boxes
+// are wrong, or if the user supplies a too-small bitmap
+static void stbtt__fill_active_edges(unsigned char *scanline, int len, stbtt__active_edge *e, int max_weight)
+{
+   // non-zero winding fill
+   int x0=0, w=0;
+
+   while (e) {
+      if (w == 0) {
+         // if we're currently at zero, we need to record the edge start point
+         x0 = e->x; w += e->valid;
+      } else {
+         int x1 = e->x; w += e->valid;
+         // if we went to zero, we need to draw
+         if (w == 0) {
+            int i = x0 >> FIXSHIFT;
+            int j = x1 >> FIXSHIFT;
+
+            if (i < len && j >= 0) {
+               if (i == j) {
+                  // x0,x1 are the same pixel, so compute combined coverage
+                  scanline[i] = scanline[i] + (stbtt_uint8) ((x1 - x0) * max_weight >> FIXSHIFT);
+               } else {
+                  if (i >= 0) // add antialiasing for x0
+                     scanline[i] = scanline[i] + (stbtt_uint8) (((FIX - (x0 & FIXMASK)) * max_weight) >> FIXSHIFT);
+                  else
+                     i = -1; // clip
+
+                  if (j < len) // add antialiasing for x1
+                     scanline[j] = scanline[j] + (stbtt_uint8) (((x1 & FIXMASK) * max_weight) >> FIXSHIFT);
+                  else
+                     j = len; // clip
+
+                  for (++i; i < j; ++i) // fill pixels between x0 and x1
+                     scanline[i] = scanline[i] + (stbtt_uint8) max_weight;
+               }
+            }
+         }
+      }
+      
+      e = e->next;
+   }
+}
+
+static void stbtt__rasterize_sorted_edges(stbtt__bitmap *result, stbtt__edge *e, int n, int vsubsample, int off_x, int off_y, void *userdata)
+{
+   stbtt__active_edge *active = NULL;
+   int y,j=0;
+   int max_weight = (255 / vsubsample);  // weight per vertical scanline
+   int s; // vertical subsample index
+   unsigned char scanline_data[512], *scanline;
+
+   if (result->w > 512)
+      scanline = (unsigned char *) STBTT_malloc(result->w, userdata);
+   else
+      scanline = scanline_data;
+
+   y = off_y * vsubsample;
+   e[n].y0 = (off_y + result->h) * (float) vsubsample + 1;
+
+   while (j < result->h) {
+      STBTT_memset(scanline, 0, result->w);
+      for (s=0; s < vsubsample; ++s) {
+         // find center of pixel for this scanline
+         float scan_y = y + 0.5f;
+         stbtt__active_edge **step = &active;
+
+         // update all active edges;
+         // remove all active edges that terminate before the center of this scanline
+         while (*step) {
+            stbtt__active_edge * z = *step;
+            if (z->ey <= scan_y) {
+               *step = z->next; // delete from list
+               STBTT_assert(z->valid);
+               z->valid = 0;
+               STBTT_free(z, userdata);
+            } else {
+               z->x += z->dx; // advance to position for current scanline
+               step = &((*step)->next); // advance through list
+            }
+         }
+
+         // resort the list if needed
+         for(;;) {
+            int changed=0;
+            step = &active;
+            while (*step && (*step)->next) {
+               if ((*step)->x > (*step)->next->x) {
+                  stbtt__active_edge *t = *step;
+                  stbtt__active_edge *q = t->next;
+
+                  t->next = q->next;
+                  q->next = t;
+                  *step = q;
+                  changed = 1;
+               }
+               step = &(*step)->next;
+            }
+            if (!changed) break;
+         }
+
+         // insert all edges that start before the center of this scanline -- omit ones that also end on this scanline
+         while (e->y0 <= scan_y) {
+            if (e->y1 > scan_y) {
+               stbtt__active_edge *z = new_active(e, off_x, scan_y, userdata);
+               // find insertion point
+               if (active == NULL)
+                  active = z;
+               else if (z->x < active->x) {
+                  // insert at front
+                  z->next = active;
+                  active = z;
+               } else {
+                  // find thing to insert AFTER
+                  stbtt__active_edge *p = active;
+                  while (p->next && p->next->x < z->x)
+                     p = p->next;
+                  // at this point, p->next->x is NOT < z->x
+                  z->next = p->next;
+                  p->next = z;
+               }
+            }
+            ++e;
+         }
+
+         // now process all active edges in XOR fashion
+         if (active)
+            stbtt__fill_active_edges(scanline, result->w, active, max_weight);
+
+         ++y;
+      }
+      STBTT_memcpy(result->pixels + j * result->stride, scanline, result->w);
+      ++j;
+   }
+
+   while (active) {
+      stbtt__active_edge *z = active;
+      active = active->next;
+      STBTT_free(z, userdata);
+   }
+
+   if (scanline != scanline_data)
+      STBTT_free(scanline, userdata);
+}
+
+static int stbtt__edge_compare(const void *p, const void *q)
+{
+   stbtt__edge *a = (stbtt__edge *) p;
+   stbtt__edge *b = (stbtt__edge *) q;
+
+   if (a->y0 < b->y0) return -1;
+   if (a->y0 > b->y0) return  1;
+   return 0;
+}
+
+typedef struct
+{
+   float x,y;
+} stbtt__point;
+
+static void stbtt__rasterize(stbtt__bitmap *result, stbtt__point *pts, int *wcount, int windings, float scale_x, float scale_y, float shift_x, float shift_y, int off_x, int off_y, int invert, void *userdata)
+{
+   float y_scale_inv = invert ? -scale_y : scale_y;
+   stbtt__edge *e;
+   int n,i,j,k,m;
+   int vsubsample = result->h < 8 ? 15 : 5;
+   // vsubsample should divide 255 evenly; otherwise we won't reach full opacity
+
+   // now we have to blow out the windings into explicit edge lists
+   n = 0;
+   for (i=0; i < windings; ++i)
+      n += wcount[i];
+
+   e = (stbtt__edge *) STBTT_malloc(sizeof(*e) * (n+1), userdata); // add an extra one as a sentinel
+   if (e == 0) return;
+   n = 0;
+
+   m=0;
+   for (i=0; i < windings; ++i) {
+      stbtt__point *p = pts + m;
+      m += wcount[i];
+      j = wcount[i]-1;
+      for (k=0; k < wcount[i]; j=k++) {
+         int a=k,b=j;
+         // skip the edge if horizontal
+         if (p[j].y == p[k].y)
+            continue;
+         // add edge from j to k to the list
+         e[n].invert = 0;
+         if (invert ? p[j].y > p[k].y : p[j].y < p[k].y) {
+            e[n].invert = 1;
+            a=j,b=k;
+         }
+         e[n].x0 = p[a].x * scale_x + shift_x;
+         e[n].y0 = (p[a].y * y_scale_inv + shift_y) * vsubsample;
+         e[n].x1 = p[b].x * scale_x + shift_x;
+         e[n].y1 = (p[b].y * y_scale_inv + shift_y) * vsubsample;
+         ++n;
+      }
+   }
+
+   // now sort the edges by their highest point (should snap to integer, and then by x)
+   STBTT_sort(e, n, sizeof(e[0]), stbtt__edge_compare);
+
+   // now, traverse the scanlines and find the intersections on each scanline, use xor winding rule
+   stbtt__rasterize_sorted_edges(result, e, n, vsubsample, off_x, off_y, userdata);
+
+   STBTT_free(e, userdata);
+}
+
+static void stbtt__add_point(stbtt__point *points, int n, float x, float y)
+{
+   if (!points) return; // during first pass, it's unallocated
+   points[n].x = x;
+   points[n].y = y;
+}
+
+// tesselate until threshhold p is happy... @TODO warped to compensate for non-linear stretching
+static int stbtt__tesselate_curve(stbtt__point *points, int *num_points, float x0, float y0, float x1, float y1, float x2, float y2, float objspace_flatness_squared, int n)
+{
+   // midpoint
+   float mx = (x0 + 2*x1 + x2)/4;
+   float my = (y0 + 2*y1 + y2)/4;
+   // versus directly drawn line
+   float dx = (x0+x2)/2 - mx;
+   float dy = (y0+y2)/2 - my;
+   if (n > 16) // 65536 segments on one curve better be enough!
+      return 1;
+   if (dx*dx+dy*dy > objspace_flatness_squared) { // half-pixel error allowed... need to be smaller if AA
+      stbtt__tesselate_curve(points, num_points, x0,y0, (x0+x1)/2.0f,(y0+y1)/2.0f, mx,my, objspace_flatness_squared,n+1);
+      stbtt__tesselate_curve(points, num_points, mx,my, (x1+x2)/2.0f,(y1+y2)/2.0f, x2,y2, objspace_flatness_squared,n+1);
+   } else {
+      stbtt__add_point(points, *num_points,x2,y2);
+      *num_points = *num_points+1;
+   }
+   return 1;
+}
+
+// returns number of contours
+stbtt__point *stbtt_FlattenCurves(stbtt_vertex *vertices, int num_verts, float objspace_flatness, int **contour_lengths, int *num_contours, void *userdata)
+{
+   stbtt__point *points=0;
+   int num_points=0;
+
+   float objspace_flatness_squared = objspace_flatness * objspace_flatness;
+   int i,n=0,start=0, pass;
+
+   // count how many "moves" there are to get the contour count
+   for (i=0; i < num_verts; ++i)
+      if (vertices[i].type == STBTT_vmove)
+         ++n;
+
+   *num_contours = n;
+   if (n == 0) return 0;
+
+   *contour_lengths = (int *) STBTT_malloc(sizeof(**contour_lengths) * n, userdata);
+
+   if (*contour_lengths == 0) {
+      *num_contours = 0;
+      return 0;
+   }
+
+   // make two passes through the points so we don't need to realloc
+   for (pass=0; pass < 2; ++pass) {
+      float x=0,y=0;
+      if (pass == 1) {
+         points = (stbtt__point *) STBTT_malloc(num_points * sizeof(points[0]), userdata);
+         if (points == NULL) goto error;
+      }
+      num_points = 0;
+      n= -1;
+      for (i=0; i < num_verts; ++i) {
+         switch (vertices[i].type) {
+            case STBTT_vmove:
+               // start the next contour
+               if (n >= 0)
+                  (*contour_lengths)[n] = num_points - start;
+               ++n;
+               start = num_points;
+
+               x = vertices[i].x, y = vertices[i].y;
+               stbtt__add_point(points, num_points++, x,y);
+               break;
+            case STBTT_vline:
+               x = vertices[i].x, y = vertices[i].y;
+               stbtt__add_point(points, num_points++, x, y);
+               break;
+            case STBTT_vcurve:
+               stbtt__tesselate_curve(points, &num_points, x,y,
+                                        vertices[i].cx, vertices[i].cy,
+                                        vertices[i].x,  vertices[i].y,
+                                        objspace_flatness_squared, 0);
+               x = vertices[i].x, y = vertices[i].y;
+               break;
+         }
+      }
+      (*contour_lengths)[n] = num_points - start;
+   }
+
+   return points;
+error:
+   STBTT_free(points, userdata);
+   STBTT_free(*contour_lengths, userdata);
+   *contour_lengths = 0;
+   *num_contours = 0;
+   return NULL;
+}
+
+void stbtt_Rasterize(stbtt__bitmap *result, float flatness_in_pixels, stbtt_vertex *vertices, int num_verts, float scale_x, float scale_y, float shift_x, float shift_y, int x_off, int y_off, int invert, void *userdata)
+{
+   float scale = scale_x > scale_y ? scale_y : scale_x;
+   int winding_count, *winding_lengths;
+   stbtt__point *windings = stbtt_FlattenCurves(vertices, num_verts, flatness_in_pixels / scale, &winding_lengths, &winding_count, userdata);
+   if (windings) {
+      stbtt__rasterize(result, windings, winding_lengths, winding_count, scale_x, scale_y, shift_x, shift_y, x_off, y_off, invert, userdata);
+      STBTT_free(winding_lengths, userdata);
+      STBTT_free(windings, userdata);
+   }
+}
+
+void stbtt_FreeBitmap(unsigned char *bitmap, void *userdata)
+{
+   STBTT_free(bitmap, userdata);
+}
+
+unsigned char *stbtt_GetGlyphBitmapSubpixel(const stbtt_fontinfo *info, float scale_x, float scale_y, float shift_x, float shift_y, int glyph, int *width, int *height, int *xoff, int *yoff)
+{
+   int ix0,iy0,ix1,iy1;
+   stbtt__bitmap gbm;
+   stbtt_vertex *vertices;   
+   int num_verts = stbtt_GetGlyphShape(info, glyph, &vertices);
+
+   if (scale_x == 0) scale_x = scale_y;
+   if (scale_y == 0) {
+      if (scale_x == 0) return NULL;
+      scale_y = scale_x;
+   }
+
+   stbtt_GetGlyphBitmapBoxSubpixel(info, glyph, scale_x, scale_y, shift_x, shift_y, &ix0,&iy0,&ix1,&iy1);
+
+   // now we get the size
+   gbm.w = (ix1 - ix0);
+   gbm.h = (iy1 - iy0);
+   gbm.pixels = NULL; // in case we error
+
+   if (width ) *width  = gbm.w;
+   if (height) *height = gbm.h;
+   if (xoff  ) *xoff   = ix0;
+   if (yoff  ) *yoff   = iy0;
+   
+   if (gbm.w && gbm.h) {
+      gbm.pixels = (unsigned char *) STBTT_malloc(gbm.w * gbm.h, info->userdata);
+      if (gbm.pixels) {
+         gbm.stride = gbm.w;
+
+         stbtt_Rasterize(&gbm, 0.35f, vertices, num_verts, scale_x, scale_y, shift_x, shift_y, ix0, iy0, 1, info->userdata);
+      }
+   }
+   STBTT_free(vertices, info->userdata);
+   return gbm.pixels;
+}   
+
+unsigned char *stbtt_GetGlyphBitmap(const stbtt_fontinfo *info, float scale_x, float scale_y, int glyph, int *width, int *height, int *xoff, int *yoff)
+{
+   return stbtt_GetGlyphBitmapSubpixel(info, scale_x, scale_y, 0.0f, 0.0f, glyph, width, height, xoff, yoff);
+}
+
+void stbtt_MakeGlyphBitmapSubpixel(const stbtt_fontinfo *info, unsigned char *output, int out_w, int out_h, int out_stride, float scale_x, float scale_y, float shift_x, float shift_y, int glyph)
+{
+   int ix0,iy0;
+   stbtt_vertex *vertices;
+   int num_verts = stbtt_GetGlyphShape(info, glyph, &vertices);
+   stbtt__bitmap gbm;   
+
+   stbtt_GetGlyphBitmapBoxSubpixel(info, glyph, scale_x, scale_y, shift_x, shift_y, &ix0,&iy0,0,0);
+   gbm.pixels = output;
+   gbm.w = out_w;
+   gbm.h = out_h;
+   gbm.stride = out_stride;
+
+   if (gbm.w && gbm.h)
+      stbtt_Rasterize(&gbm, 0.35f, vertices, num_verts, scale_x, scale_y, shift_x, shift_y, ix0,iy0, 1, info->userdata);
+
+   STBTT_free(vertices, info->userdata);
+}
+
+void stbtt_MakeGlyphBitmap(const stbtt_fontinfo *info, unsigned char *output, int out_w, int out_h, int out_stride, float scale_x, float scale_y, int glyph)
+{
+   stbtt_MakeGlyphBitmapSubpixel(info, output, out_w, out_h, out_stride, scale_x, scale_y, 0.0f,0.0f, glyph);
+}
+
+unsigned char *stbtt_GetCodepointBitmapSubpixel(const stbtt_fontinfo *info, float scale_x, float scale_y, float shift_x, float shift_y, int codepoint, int *width, int *height, int *xoff, int *yoff)
+{
+   return stbtt_GetGlyphBitmapSubpixel(info, scale_x, scale_y,shift_x,shift_y, stbtt_FindGlyphIndex(info,codepoint), width,height,xoff,yoff);
+}   
+
+void stbtt_MakeCodepointBitmapSubpixel(const stbtt_fontinfo *info, unsigned char *output, int out_w, int out_h, int out_stride, float scale_x, float scale_y, float shift_x, float shift_y, int codepoint)
+{
+   stbtt_MakeGlyphBitmapSubpixel(info, output, out_w, out_h, out_stride, scale_x, scale_y, shift_x, shift_y, stbtt_FindGlyphIndex(info,codepoint));
+}
+
+unsigned char *stbtt_GetCodepointBitmap(const stbtt_fontinfo *info, float scale_x, float scale_y, int codepoint, int *width, int *height, int *xoff, int *yoff)
+{
+   return stbtt_GetCodepointBitmapSubpixel(info, scale_x, scale_y, 0.0f,0.0f, codepoint, width,height,xoff,yoff);
+}   
+
+void stbtt_MakeCodepointBitmap(const stbtt_fontinfo *info, unsigned char *output, int out_w, int out_h, int out_stride, float scale_x, float scale_y, int codepoint)
+{
+   stbtt_MakeCodepointBitmapSubpixel(info, output, out_w, out_h, out_stride, scale_x, scale_y, 0.0f,0.0f, codepoint);
+}
+
+//////////////////////////////////////////////////////////////////////////////
+//
+// bitmap baking
+//
+// This is SUPER-CRAPPY packing to keep source code small
+
+extern int stbtt_BakeFontBitmap(const unsigned char *data, int offset,  // font location (use offset=0 for plain .ttf)
+                                float pixel_height,                     // height of font in pixels
+                                unsigned char *pixels, int pw, int ph,  // bitmap to be filled in
+                                int first_char, int num_chars,          // characters to bake
+                                stbtt_bakedchar *chardata)
+{
+   float scale;
+   int x,y,bottom_y, i;
+   stbtt_fontinfo f;
+   if (!stbtt_InitFont(&f, data, offset))
+      return -1;
+   STBTT_memset(pixels, 0, pw*ph); // background of 0 around pixels
+   x=y=1;
+   bottom_y = 1;
+
+   scale = stbtt_ScaleForPixelHeight(&f, pixel_height);
+
+   for (i=0; i < num_chars; ++i) {
+      int advance, lsb, x0,y0,x1,y1,gw,gh;
+      int g = stbtt_FindGlyphIndex(&f, first_char + i);
+      stbtt_GetGlyphHMetrics(&f, g, &advance, &lsb);
+      stbtt_GetGlyphBitmapBox(&f, g, scale,scale, &x0,&y0,&x1,&y1);
+      gw = x1-x0;
+      gh = y1-y0;
+      if (x + gw + 1 >= pw)
+         y = bottom_y, x = 1; // advance to next row
+      if (y + gh + 1 >= ph) // check if it fits vertically AFTER potentially moving to next row
+         return -i;
+      STBTT_assert(x+gw < pw);
+      STBTT_assert(y+gh < ph);
+      stbtt_MakeGlyphBitmap(&f, pixels+x+y*pw, gw,gh,pw, scale,scale, g);
+      chardata[i].x0 = (stbtt_int16) x;
+      chardata[i].y0 = (stbtt_int16) y;
+      chardata[i].x1 = (stbtt_int16) (x + gw);
+      chardata[i].y1 = (stbtt_int16) (y + gh);
+      chardata[i].xadvance = scale * advance;
+      chardata[i].xoff     = (float) x0;
+      chardata[i].yoff     = (float) y0;
+      x = x + gw + 1;
+      if (y+gh+1 > bottom_y)
+         bottom_y = y+gh+1;
+   }
+   return bottom_y;
+}
+
+void stbtt_GetBakedQuad(stbtt_bakedchar *chardata, int pw, int ph, int char_index, float *xpos, float *ypos, stbtt_aligned_quad *q, int opengl_fillrule)
+{
+   float d3d_bias = opengl_fillrule ? 0 : -0.5f;
+   float ipw = 1.0f / pw, iph = 1.0f / ph;
+   stbtt_bakedchar *b = chardata + char_index;
+   int round_x = STBTT_ifloor((*xpos + b->xoff) + 0.5);
+   int round_y = STBTT_ifloor((*ypos + b->yoff) + 0.5);
+
+   q->x0 = round_x + d3d_bias;
+   q->y0 = round_y + d3d_bias;
+   q->x1 = round_x + b->x1 - b->x0 + d3d_bias;
+   q->y1 = round_y + b->y1 - b->y0 + d3d_bias;
+
+   q->s0 = b->x0 * ipw;
+   q->t0 = b->y0 * iph;
+   q->s1 = b->x1 * ipw;
+   q->t1 = b->y1 * iph;
+
+   *xpos += b->xadvance;
+}
+
+//////////////////////////////////////////////////////////////////////////////
+//
+// rectangle packing replacement routines if you don't have stb_rect_pack.h
+//
+
+#ifndef STB_RECT_PACK_VERSION
+#ifdef _MSC_VER
+#define STBTT__NOTUSED(v)  (void)(v)
+#else
+#define STBTT__NOTUSED(v)  (void)sizeof(v)
+#endif
+
+typedef int stbrp_coord;
+
+////////////////////////////////////////////////////////////////////////////////////
+//                                                                                //
+//                                                                                //
+// COMPILER WARNING ?!?!?                                                         //
+//                                                                                //
+//                                                                                //
+// if you get a compile warning due to these symbols being defined more than      //
+// once, move #include "stb_rect_pack.h" before #include "stb_truetype.h"         //
+//                                                                                //
+////////////////////////////////////////////////////////////////////////////////////
+
+typedef struct
+{
+   int width,height;
+   int x,y,bottom_y;
+} stbrp_context;
+
+typedef struct
+{
+   unsigned char x;
+} stbrp_node;
+
+typedef struct
+{
+   stbrp_coord x,y;
+   int id,w,h,was_packed;
+} stbrp_rect;
+
+static void stbrp_init_target(stbrp_context *con, int pw, int ph, stbrp_node *nodes, int num_nodes)
+{
+   con->width  = pw;
+   con->height = ph;
+   con->x = 0;
+   con->y = 0;
+   con->bottom_y = 0;
+   STBTT__NOTUSED(nodes);
+   STBTT__NOTUSED(num_nodes);   
+}
+
+static void stbrp_pack_rects(stbrp_context *con, stbrp_rect *rects, int num_rects)
+{
+   int i;
+   for (i=0; i < num_rects; ++i) {
+      if (con->x + rects[i].w > con->width) {
+         con->x = 0;
+         con->y = con->bottom_y;
+      }
+      if (con->y + rects[i].h > con->height)
+         break;
+      rects[i].x = con->x;
+      rects[i].y = con->y;
+      rects[i].was_packed = 1;
+      con->x += rects[i].w;
+      if (con->y + rects[i].h > con->bottom_y)
+         con->bottom_y = con->y + rects[i].h;
+   }
+   for (   ; i < num_rects; ++i)
+      rects[i].was_packed = 0;
+}
+#endif
+
+//////////////////////////////////////////////////////////////////////////////
+//
+// bitmap baking
+//
+// This is SUPER-AWESOME (tm Ryan Gordon) packing using stb_rect_pack.h. If
+// stb_rect_pack.h isn't available, it uses the BakeFontBitmap strategy.
+
+int stbtt_PackBegin(stbtt_pack_context *spc, unsigned char *pixels, int pw, int ph, int stride_in_bytes, int padding, void *alloc_context)
+{
+   stbrp_context *context = (stbrp_context *) STBTT_malloc(sizeof(*context)            ,alloc_context);
+   int            num_nodes = pw - padding;
+   stbrp_node    *nodes   = (stbrp_node    *) STBTT_malloc(sizeof(*nodes  ) * num_nodes,alloc_context);
+
+   if (context == NULL || nodes == NULL) {
+      if (context != NULL) STBTT_free(context, alloc_context);
+      if (nodes   != NULL) STBTT_free(nodes  , alloc_context);
+      return 0;
+   }
+
+   spc->user_allocator_context = alloc_context;
+   spc->width = pw;
+   spc->height = ph;
+   spc->pixels = pixels;
+   spc->pack_info = context;
+   spc->nodes = nodes;
+   spc->padding = padding;
+   spc->stride_in_bytes = stride_in_bytes != 0 ? stride_in_bytes : pw;
+   spc->h_oversample = 1;
+   spc->v_oversample = 1;
+
+   stbrp_init_target(context, pw-padding, ph-padding, nodes, num_nodes);
+
+   if (pixels)
+      STBTT_memset(pixels, 0, pw*ph); // background of 0 around pixels
+
+   return 1;
+}
+
+void stbtt_PackEnd  (stbtt_pack_context *spc)
+{
+   STBTT_free(spc->nodes    , spc->user_allocator_context);
+   STBTT_free(spc->pack_info, spc->user_allocator_context);
+}
+
+void stbtt_PackSetOversampling(stbtt_pack_context *spc, unsigned int h_oversample, unsigned int v_oversample)
+{
+   STBTT_assert(h_oversample <= STBTT_MAX_OVERSAMPLE);
+   STBTT_assert(v_oversample <= STBTT_MAX_OVERSAMPLE);
+   if (h_oversample <= STBTT_MAX_OVERSAMPLE)
+      spc->h_oversample = h_oversample;
+   if (v_oversample <= STBTT_MAX_OVERSAMPLE)
+      spc->v_oversample = v_oversample;
+}
+
+#define STBTT__OVER_MASK  (STBTT_MAX_OVERSAMPLE-1)
+
+static void stbtt__h_prefilter(unsigned char *pixels, int w, int h, int stride_in_bytes, unsigned int kernel_width)
+{
+   unsigned char buffer[STBTT_MAX_OVERSAMPLE];
+   int safe_w = w - kernel_width;
+   int j;
+   for (j=0; j < h; ++j) {
+      int i;
+      unsigned int total;
+      memset(buffer, 0, kernel_width);
+
+      total = 0;
+
+      // make kernel_width a constant in common cases so compiler can optimize out the divide
+      switch (kernel_width) {
+         case 2:
+            for (i=0; i <= safe_w; ++i) {
+               total += pixels[i] - buffer[i & STBTT__OVER_MASK];
+               buffer[(i+kernel_width) & STBTT__OVER_MASK] = pixels[i];
+               pixels[i] = (unsigned char) (total / 2);
+            }
+            break;
+         case 3:
+            for (i=0; i <= safe_w; ++i) {
+               total += pixels[i] - buffer[i & STBTT__OVER_MASK];
+               buffer[(i+kernel_width) & STBTT__OVER_MASK] = pixels[i];
+               pixels[i] = (unsigned char) (total / 3);
+            }
+            break;
+         case 4:
+            for (i=0; i <= safe_w; ++i) {
+               total += pixels[i] - buffer[i & STBTT__OVER_MASK];
+               buffer[(i+kernel_width) & STBTT__OVER_MASK] = pixels[i];
+               pixels[i] = (unsigned char) (total / 4);
+            }
+            break;
+         default:
+            for (i=0; i <= safe_w; ++i) {
+               total += pixels[i] - buffer[i & STBTT__OVER_MASK];
+               buffer[(i+kernel_width) & STBTT__OVER_MASK] = pixels[i];
+               pixels[i] = (unsigned char) (total / kernel_width);
+            }
+            break;
+      }
+
+      for (; i < w; ++i) {
+         STBTT_assert(pixels[i] == 0);
+         total -= buffer[i & STBTT__OVER_MASK];
+         pixels[i] = (unsigned char) (total / kernel_width);
+      }
+
+      pixels += stride_in_bytes;
+   }
+}
+
+static void stbtt__v_prefilter(unsigned char *pixels, int w, int h, int stride_in_bytes, unsigned int kernel_width)
+{
+   unsigned char buffer[STBTT_MAX_OVERSAMPLE];
+   int safe_h = h - kernel_width;
+   int j;
+   for (j=0; j < w; ++j) {
+      int i;
+      unsigned int total;
+      memset(buffer, 0, kernel_width);
+
+      total = 0;
+
+      // make kernel_width a constant in common cases so compiler can optimize out the divide
+      switch (kernel_width) {
+         case 2:
+            for (i=0; i <= safe_h; ++i) {
+               total += pixels[i*stride_in_bytes] - buffer[i & STBTT__OVER_MASK];
+               buffer[(i+kernel_width) & STBTT__OVER_MASK] = pixels[i*stride_in_bytes];
+               pixels[i*stride_in_bytes] = (unsigned char) (total / 2);
+            }
+            break;
+         case 3:
+            for (i=0; i <= safe_h; ++i) {
+               total += pixels[i*stride_in_bytes] - buffer[i & STBTT__OVER_MASK];
+               buffer[(i+kernel_width) & STBTT__OVER_MASK] = pixels[i*stride_in_bytes];
+               pixels[i*stride_in_bytes] = (unsigned char) (total / 3);
+            }
+            break;
+         case 4:
+            for (i=0; i <= safe_h; ++i) {
+               total += pixels[i*stride_in_bytes] - buffer[i & STBTT__OVER_MASK];
+               buffer[(i+kernel_width) & STBTT__OVER_MASK] = pixels[i*stride_in_bytes];
+               pixels[i*stride_in_bytes] = (unsigned char) (total / 4);
+            }
+            break;
+         default:
+            for (i=0; i <= safe_h; ++i) {
+               total += pixels[i*stride_in_bytes] - buffer[i & STBTT__OVER_MASK];
+               buffer[(i+kernel_width) & STBTT__OVER_MASK] = pixels[i*stride_in_bytes];
+               pixels[i*stride_in_bytes] = (unsigned char) (total / kernel_width);
+            }
+            break;
+      }
+
+      for (; i < h; ++i) {
+         STBTT_assert(pixels[i*stride_in_bytes] == 0);
+         total -= buffer[i & STBTT__OVER_MASK];
+         pixels[i*stride_in_bytes] = (unsigned char) (total / kernel_width);
+      }
+
+      pixels += 1;
+   }
+}
+
+static float stbtt__oversample_shift(int oversample)
+{
+   if (!oversample)
+      return 0.0f;
+
+   // The prefilter is a box filter of width "oversample",
+   // which shifts phase by (oversample - 1)/2 pixels in
+   // oversampled space. We want to shift in the opposite
+   // direction to counter this.
+   return (float)-(oversample - 1) / (2.0f * (float)oversample);
+}
+
+// rects array must be big enough to accommodate all characters in the given ranges
+int stbtt_PackFontRangesGatherRects(stbtt_pack_context *spc, stbtt_fontinfo *info, stbtt_pack_range *ranges, int num_ranges, stbrp_rect *rects)
+{
+   int i,j,k;
+
+   k=0;
+   for (i=0; i < num_ranges; ++i) {
+      float fh = ranges[i].font_size;
+      float scale = fh > 0 ? stbtt_ScaleForPixelHeight(info, fh) : stbtt_ScaleForMappingEmToPixels(info, -fh);
+      for (j=0; j < ranges[i].num_chars_in_range; ++j) {
+         int x0,y0,x1,y1;
+		 int glyph = stbtt_FindGlyphIndex(info,ranges[i].first_unicode_char_in_range + j);
+		 if (glyph) {
+            stbtt_GetGlyphBitmapBoxSubpixel(info,glyph,
+                                            scale * spc->h_oversample,
+                                            scale * spc->v_oversample,
+                                            0,0,
+                                            &x0,&y0,&x1,&y1);
+            rects[k].w = (stbrp_coord) (x1-x0 + spc->padding + spc->h_oversample-1);
+            rects[k].h = (stbrp_coord) (y1-y0 + spc->padding + spc->v_oversample-1);
+		 } else {
+			 rects[k].was_packed = false;
+		 }
+		 ++k;
+      }
+   }
+
+   return k;
+}
+
+// rects array must be big enough to accommodate all characters in the given ranges
+int stbtt_PackFontRangesRenderIntoRects(stbtt_pack_context *spc, stbtt_fontinfo *info, stbtt_pack_range *ranges, int num_ranges, stbrp_rect *rects)
+{
+   float recip_h = 1.0f / spc->h_oversample;
+   float recip_v = 1.0f / spc->v_oversample;
+   float sub_x = stbtt__oversample_shift(spc->h_oversample);
+   float sub_y = stbtt__oversample_shift(spc->v_oversample);
+   int i,j,k, return_value = 1;
+
+   k = 0;
+   for (i=0; i < num_ranges; ++i) {
+      float fh = ranges[i].font_size;
+      float scale = fh > 0 ? stbtt_ScaleForPixelHeight(info, fh) : stbtt_ScaleForMappingEmToPixels(info, -fh);
+      for (j=0; j < ranges[i].num_chars_in_range; ++j) {
+         stbrp_rect *r = &rects[k];
+         if (r->was_packed) {
+            stbtt_packedchar *bc = &ranges[i].chardata_for_range[j];
+            int advance, lsb, x0,y0,x1,y1;
+            int glyph = stbtt_FindGlyphIndex(info, ranges[i].first_unicode_char_in_range + j);
+            stbrp_coord pad = (stbrp_coord) spc->padding;
+
+            // pad on left and top
+            r->x += pad;
+            r->y += pad;
+            r->w -= pad;
+            r->h -= pad;
+            stbtt_GetGlyphHMetrics(info, glyph, &advance, &lsb);
+            stbtt_GetGlyphBitmapBox(info, glyph,
+                                    scale * spc->h_oversample,
+                                    scale * spc->v_oversample,
+                                    &x0,&y0,&x1,&y1);
+            stbtt_MakeGlyphBitmapSubpixel(info,
+                                          spc->pixels + r->x + r->y*spc->stride_in_bytes,
+                                          r->w - spc->h_oversample+1,
+                                          r->h - spc->v_oversample+1,
+                                          spc->stride_in_bytes,
+                                          scale * spc->h_oversample,
+                                          scale * spc->v_oversample,
+                                          0,0,
+                                          glyph);
+
+            if (spc->h_oversample > 1)
+               stbtt__h_prefilter(spc->pixels + r->x + r->y*spc->stride_in_bytes,
+                                  r->w, r->h, spc->stride_in_bytes,
+                                  spc->h_oversample);
+
+            if (spc->v_oversample > 1)
+               stbtt__v_prefilter(spc->pixels + r->x + r->y*spc->stride_in_bytes,
+                                  r->w, r->h, spc->stride_in_bytes,
+                                  spc->v_oversample);
+
+            bc->x0       = (stbtt_int16)  r->x;
+            bc->y0       = (stbtt_int16)  r->y;
+            bc->x1       = (stbtt_int16) (r->x + r->w);
+            bc->y1       = (stbtt_int16) (r->y + r->h);
+            bc->xadvance =                scale * advance;
+            bc->xoff     =       (float)  x0 * recip_h + sub_x;
+            bc->yoff     =       (float)  y0 * recip_v + sub_y;
+            bc->xoff2    =                (x0 + r->w) * recip_h + sub_x;
+            bc->yoff2    =                (y0 + r->h) * recip_v + sub_y;
+         } else {
+            return_value = 0; // if any fail, report failure
+         }
+
+         ++k;
+      }
+   }
+
+   return return_value;
+}
+
+int stbtt_PackFontRanges(stbtt_pack_context *spc, unsigned char *fontdata, int font_index, stbtt_pack_range *ranges, int num_ranges)
+{
+   stbtt_fontinfo info;
+   int i,j,n, return_value = 1;
+   stbrp_context *context = (stbrp_context *) spc->pack_info;
+   stbrp_rect    *rects;
+
+   // flag all characters as NOT packed
+   for (i=0; i < num_ranges; ++i)
+      for (j=0; j < ranges[i].num_chars_in_range; ++j)
+         ranges[i].chardata_for_range[j].x0 =
+         ranges[i].chardata_for_range[j].y0 =
+         ranges[i].chardata_for_range[j].x1 =
+         ranges[i].chardata_for_range[j].y1 = 0;
+
+   n = 0;
+   for (i=0; i < num_ranges; ++i)
+      n += ranges[i].num_chars_in_range;
+         
+   rects = (stbrp_rect *) STBTT_malloc(sizeof(*rects) * n, spc->user_allocator_context);
+   if (rects == NULL)
+      return 0;
+
+   stbtt_InitFont(&info, fontdata, stbtt_GetFontOffsetForIndex(fontdata,font_index));
+
+   n = stbtt_PackFontRangesGatherRects(spc, &info, ranges, num_ranges, rects);
+
+   stbrp_pack_rects(context, rects, n);
+  
+   return_value = stbtt_PackFontRangesRenderIntoRects(spc, &info, ranges, num_ranges, rects);
+
+   return return_value;
+}
+
+int stbtt_PackFontRange(stbtt_pack_context *spc, unsigned char *fontdata, int font_index, float font_size,
+            int first_unicode_char_in_range, int num_chars_in_range, stbtt_packedchar *chardata_for_range)
+{
+   stbtt_pack_range range;
+   range.first_unicode_char_in_range = first_unicode_char_in_range;
+   range.num_chars_in_range          = num_chars_in_range;
+   range.chardata_for_range          = chardata_for_range;
+   range.font_size                   = font_size;
+   return stbtt_PackFontRanges(spc, fontdata, font_index, &range, 1);
+}
+
+void stbtt_GetPackedQuad(stbtt_packedchar *chardata, int pw, int ph, int char_index, float *xpos, float *ypos, stbtt_aligned_quad *q, int align_to_integer)
+{
+   float ipw = 1.0f / pw, iph = 1.0f / ph;
+   stbtt_packedchar *b = chardata + char_index;
+
+   if (align_to_integer) {
+      float x = (float) STBTT_ifloor((*xpos + b->xoff) + 0.5);
+      float y = (float) STBTT_ifloor((*ypos + b->yoff) + 0.5);
+      q->x0 = x;
+      q->y0 = y;
+      q->x1 = x + b->xoff2 - b->xoff;
+      q->y1 = y + b->yoff2 - b->yoff;
+   } else {
+      q->x0 = *xpos + b->xoff;
+      q->y0 = *ypos + b->yoff;
+      q->x1 = *xpos + b->xoff2;
+      q->y1 = *ypos + b->yoff2;
+   }
+
+   q->s0 = b->x0 * ipw;
+   q->t0 = b->y0 * iph;
+   q->s1 = b->x1 * ipw;
+   q->t1 = b->y1 * iph;
+
+   *xpos += b->xadvance;
+}
+
+
+//////////////////////////////////////////////////////////////////////////////
+//
+// font name matching -- recommended not to use this
+//
+
+// check if a utf8 string contains a prefix which is the utf16 string; if so return length of matching utf8 string
+static stbtt_int32 stbtt__CompareUTF8toUTF16_bigendian_prefix(const stbtt_uint8 *s1, stbtt_int32 len1, const stbtt_uint8 *s2, stbtt_int32 len2) 
+{
+   stbtt_int32 i=0;
+
+   // convert utf16 to utf8 and compare the results while converting
+   while (len2) {
+      stbtt_uint16 ch = s2[0]*256 + s2[1];
+      if (ch < 0x80) {
+         if (i >= len1) return -1;
+         if (s1[i++] != ch) return -1;
+      } else if (ch < 0x800) {
+         if (i+1 >= len1) return -1;
+         if (s1[i++] != 0xc0 + (ch >> 6)) return -1;
+         if (s1[i++] != 0x80 + (ch & 0x3f)) return -1;
+      } else if (ch >= 0xd800 && ch < 0xdc00) {
+         stbtt_uint32 c;
+         stbtt_uint16 ch2 = s2[2]*256 + s2[3];
+         if (i+3 >= len1) return -1;
+         c = ((ch - 0xd800) << 10) + (ch2 - 0xdc00) + 0x10000;
+         if (s1[i++] != 0xf0 + (c >> 18)) return -1;
+         if (s1[i++] != 0x80 + ((c >> 12) & 0x3f)) return -1;
+         if (s1[i++] != 0x80 + ((c >>  6) & 0x3f)) return -1;
+         if (s1[i++] != 0x80 + ((c      ) & 0x3f)) return -1;
+         s2 += 2; // plus another 2 below
+         len2 -= 2;
+      } else if (ch >= 0xdc00 && ch < 0xe000) {
+         return -1;
+      } else {
+         if (i+2 >= len1) return -1;
+         if (s1[i++] != 0xe0 + (ch >> 12)) return -1;
+         if (s1[i++] != 0x80 + ((ch >> 6) & 0x3f)) return -1;
+         if (s1[i++] != 0x80 + ((ch     ) & 0x3f)) return -1;
+      }
+      s2 += 2;
+      len2 -= 2;
+   }
+   return i;
+}
+
+int stbtt_CompareUTF8toUTF16_bigendian(const char *s1, int len1, const char *s2, int len2) 
+{
+   return len1 == stbtt__CompareUTF8toUTF16_bigendian_prefix((const stbtt_uint8*) s1, len1, (const stbtt_uint8*) s2, len2);
+}
+
+// returns results in whatever encoding you request... but note that 2-byte encodings
+// will be BIG-ENDIAN... use stbtt_CompareUTF8toUTF16_bigendian() to compare
+const char *stbtt_GetFontNameString(const stbtt_fontinfo *font, int *length, int platformID, int encodingID, int languageID, int nameID)
+{
+   stbtt_int32 i,count,stringOffset;
+   stbtt_uint8 *fc = font->data;
+   stbtt_uint32 offset = font->fontstart;
+   stbtt_uint32 nm = stbtt__find_table(fc, offset, "name");
+   if (!nm) return NULL;
+
+   count = ttUSHORT(fc+nm+2);
+   stringOffset = nm + ttUSHORT(fc+nm+4);
+   for (i=0; i < count; ++i) {
+      stbtt_uint32 loc = nm + 6 + 12 * i;
+      if (platformID == ttUSHORT(fc+loc+0) && encodingID == ttUSHORT(fc+loc+2)
+          && languageID == ttUSHORT(fc+loc+4) && nameID == ttUSHORT(fc+loc+6)) {
+         *length = ttUSHORT(fc+loc+8);
+         return (const char *) (fc+stringOffset+ttUSHORT(fc+loc+10));
+      }
+   }
+   return NULL;
+}
+
+static int stbtt__matchpair(stbtt_uint8 *fc, stbtt_uint32 nm, stbtt_uint8 *name, stbtt_int32 nlen, stbtt_int32 target_id, stbtt_int32 next_id)
+{
+   stbtt_int32 i;
+   stbtt_int32 count = ttUSHORT(fc+nm+2);
+   stbtt_int32 stringOffset = nm + ttUSHORT(fc+nm+4);
+
+   for (i=0; i < count; ++i) {
+      stbtt_uint32 loc = nm + 6 + 12 * i;
+      stbtt_int32 id = ttUSHORT(fc+loc+6);
+      if (id == target_id) {
+         // find the encoding
+         stbtt_int32 platform = ttUSHORT(fc+loc+0), encoding = ttUSHORT(fc+loc+2), language = ttUSHORT(fc+loc+4);
+
+         // is this a Unicode encoding?
+         if (platform == 0 || (platform == 3 && encoding == 1) || (platform == 3 && encoding == 10)) {
+            stbtt_int32 slen = ttUSHORT(fc+loc+8);
+            stbtt_int32 off = ttUSHORT(fc+loc+10);
+
+            // check if there's a prefix match
+            stbtt_int32 matchlen = stbtt__CompareUTF8toUTF16_bigendian_prefix(name, nlen, fc+stringOffset+off,slen);
+            if (matchlen >= 0) {
+               // check for target_id+1 immediately following, with same encoding & language
+               if (i+1 < count && ttUSHORT(fc+loc+12+6) == next_id && ttUSHORT(fc+loc+12) == platform && ttUSHORT(fc+loc+12+2) == encoding && ttUSHORT(fc+loc+12+4) == language) {
+                  slen = ttUSHORT(fc+loc+12+8);
+                  off = ttUSHORT(fc+loc+12+10);
+                  if (slen == 0) {
+                     if (matchlen == nlen)
+                        return 1;
+                  } else if (matchlen < nlen && name[matchlen] == ' ') {
+                     ++matchlen;
+                     if (stbtt_CompareUTF8toUTF16_bigendian((char*) (name+matchlen), nlen-matchlen, (char*)(fc+stringOffset+off),slen))
+                        return 1;
+                  }
+               } else {
+                  // if nothing immediately following
+                  if (matchlen == nlen)
+                     return 1;
+               }
+            }
+         }
+
+         // @TODO handle other encodings
+      }
+   }
+   return 0;
+}
+
+static int stbtt__matches(stbtt_uint8 *fc, stbtt_uint32 offset, stbtt_uint8 *name, stbtt_int32 flags)
+{
+   stbtt_int32 nlen = (stbtt_int32) STBTT_strlen((char *) name);
+   stbtt_uint32 nm,hd;
+   if (!stbtt__isfont(fc+offset)) return 0;
+
+   // check italics/bold/underline flags in macStyle...
+   if (flags) {
+      hd = stbtt__find_table(fc, offset, "head");
+      if ((ttUSHORT(fc+hd+44) & 7) != (flags & 7)) return 0;
+   }
+
+   nm = stbtt__find_table(fc, offset, "name");
+   if (!nm) return 0;
+
+   if (flags) {
+      // if we checked the macStyle flags, then just check the family and ignore the subfamily
+      if (stbtt__matchpair(fc, nm, name, nlen, 16, -1))  return 1;
+      if (stbtt__matchpair(fc, nm, name, nlen,  1, -1))  return 1;
+      if (stbtt__matchpair(fc, nm, name, nlen,  3, -1))  return 1;
+   } else {
+      if (stbtt__matchpair(fc, nm, name, nlen, 16, 17))  return 1;
+      if (stbtt__matchpair(fc, nm, name, nlen,  1,  2))  return 1;
+      if (stbtt__matchpair(fc, nm, name, nlen,  3, -1))  return 1;
+   }
+
+   return 0;
+}
+
+int stbtt_FindMatchingFont(const unsigned char *font_collection, const char *name_utf8, stbtt_int32 flags)
+{
+   stbtt_int32 i;
+   for (i=0;;++i) {
+      stbtt_int32 off = stbtt_GetFontOffsetForIndex(font_collection, i);
+      if (off < 0) return off;
+      if (stbtt__matches((stbtt_uint8 *) font_collection, off, (stbtt_uint8*) name_utf8, flags))
+         return off;
+   }
+}
+
+#endif // STB_TRUETYPE_IMPLEMENTATION