Added min spec checks.

include/bgfx.h

@@ -137,7 +137,8 @@ namespace bgfx
 	{
 		enum Enum
 		{
-			D3D9_UnableToCreateInterface = 1,
+			MinimumRequiredSpecs = 1,
+			D3D9_UnableToCreateInterface,
 			D3D9_UnableToCreateDevice,
 			D3D9_UnableToCreateRenderTarget,
 		};

src/renderer_d3d9.cpp

@@ -184,6 +184,13 @@ namespace bgfx
 
 			DX_CHECK(m_device->GetDeviceCaps(&m_caps) );
 
+			// For shit GPUs that can create DX9 device but can't do simple stuff. GTFO!
+			BGFX_FATAL( (D3DPTEXTURECAPS_SQUAREONLY & m_caps.TextureCaps) == 0, bgfx::Fatal::MinimumRequiredSpecs, "D3DPTEXTURECAPS_SQUAREONLY");
+			BGFX_FATAL( (D3DPTEXTURECAPS_MIPMAP & m_caps.TextureCaps) == D3DPTEXTURECAPS_MIPMAP, bgfx::Fatal::MinimumRequiredSpecs, "D3DPTEXTURECAPS_MIPMAP");
+			BGFX_FATAL( (D3DPTEXTURECAPS_ALPHA & m_caps.TextureCaps) == D3DPTEXTURECAPS_ALPHA, bgfx::Fatal::MinimumRequiredSpecs, "D3DPTEXTURECAPS_ALPHA");
+			BGFX_FATAL( (m_caps.VertexShaderVersion&0x300) == 0x300 &&  (m_caps.PixelShaderVersion&0x300) == 0x300, bgfx::Fatal::MinimumRequiredSpecs, "Shader Version is not 3.0.");
+			BGFX_FATAL(m_caps.MaxTextureWidth >= 2048 && m_caps.MaxTextureHeight >= 2048, bgfx::Fatal::MinimumRequiredSpecs, "Maximum texture size is below 2048.");
+
 			m_fmtNULL = SUCCEEDED(m_d3d9->CheckDeviceFormat(D3DADAPTER_DEFAULT, D3DDEVTYPE_HAL, D3DFMT_X8R8G8B8, D3DUSAGE_DEPTHSTENCIL, D3DRTYPE_TEXTURE, D3DFMT_NULL) );
 			m_fmtDF16 = SUCCEEDED(m_d3d9->CheckDeviceFormat(D3DADAPTER_DEFAULT, D3DDEVTYPE_HAL, D3DFMT_X8R8G8B8, D3DUSAGE_DEPTHSTENCIL, D3DRTYPE_TEXTURE, D3DFMT_DF16) );
 			m_fmtDF24 = SUCCEEDED(m_d3d9->CheckDeviceFormat(D3DADAPTER_DEFAULT, D3DDEVTYPE_HAL, D3DFMT_X8R8G8B8, D3DUSAGE_DEPTHSTENCIL, D3DRTYPE_TEXTURE, D3DFMT_DF24) );