Added maxTextureLayers to caps/limits.

include/bgfx/bgfx.h

@@ -614,6 +614,7 @@ namespace bgfx
 			uint32_t maxDrawCalls;            //!< Maximum number of draw calls.
 			uint32_t maxBlits;                //!< Maximum number of blit calls.
 			uint32_t maxTextureSize;          //!< Maximum texture size.
+			uint32_t maxTextureLayers;        //!< Maximum texture layers.
 			uint32_t maxViews;                //!< Maximum number of views.
 			uint32_t maxFrameBuffers;         //!< Maximum number of frame buffer handles.
 			uint32_t maxFBAttachments;        //!< Maximum number of frame buffer attachments.

include/bgfx/c99/bgfx.h

@@ -495,6 +495,7 @@ typedef struct bgfx_caps_limits
     uint32_t maxDrawCalls;
     uint32_t maxBlits;
     uint32_t maxTextureSize;
+    uint32_t maxTextureLayers;
     uint32_t maxViews;
     uint32_t maxFrameBuffers;
     uint32_t maxFBAttachments;

include/bgfx/defines.h

@@ -6,7 +6,7 @@
 #ifndef BGFX_DEFINES_H_HEADER_GUARD
 #define BGFX_DEFINES_H_HEADER_GUARD
 
-#define BGFX_API_VERSION UINT32_C(60)
+#define BGFX_API_VERSION UINT32_C(61)
 
 /// Color RGB/alpha/depth write. When it's not specified write will be disabled.
 #define BGFX_STATE_RGB_WRITE               UINT64_C(0x0000000000000001) //!< Enable RGB write.

src/bgfx.cpp

@@ -1249,6 +1249,7 @@ namespace bgfx
 		LIMITS(maxDrawCalls);
 		LIMITS(maxBlits);
 		LIMITS(maxTextureSize);
+		LIMITS(maxTextureLayers);
 		LIMITS(maxViews);
 		LIMITS(maxFrameBuffers);
 		LIMITS(maxFBAttachments);
@@ -2805,6 +2806,8 @@ namespace bgfx
 		bx::memSet(&g_caps, 0, sizeof(g_caps) );
 		g_caps.limits.maxDrawCalls            = BGFX_CONFIG_MAX_DRAW_CALLS;
 		g_caps.limits.maxBlits                = BGFX_CONFIG_MAX_BLIT_ITEMS;
+		g_caps.limits.maxTextureSize          = 0;
+		g_caps.limits.maxTextureLayers        = 1;
 		g_caps.limits.maxViews                = BGFX_CONFIG_MAX_VIEWS;
 		g_caps.limits.maxFrameBuffers         = BGFX_CONFIG_MAX_FRAME_BUFFERS;
 		g_caps.limits.maxPrograms             = BGFX_CONFIG_MAX_PROGRAMS;

src/renderer_d3d11.cpp

@@ -1537,6 +1537,7 @@ BX_PRAGMA_DIAGNOSTIC_POP();
 				{
 					g_caps.supported |= BGFX_CAPS_TEXTURE_COMPARE_ALL;
 					g_caps.limits.maxTextureSize   = D3D11_REQ_TEXTURE2D_U_OR_V_DIMENSION;
+					g_caps.limits.maxTextureLayers = D3D11_REQ_TEXTURE2D_ARRAY_AXIS_DIMENSION;
 					g_caps.limits.maxFBAttachments = uint8_t(bx::uint32_min(
 						  D3D11_SIMULTANEOUS_RENDER_TARGET_COUNT
 						, BGFX_CONFIG_MAX_FRAME_BUFFER_ATTACHMENTS

src/renderer_d3d12.cpp

@@ -1277,7 +1277,8 @@ namespace bgfx { namespace d3d12
 					| BGFX_CAPS_TEXTURE_2D_ARRAY
 					| BGFX_CAPS_TEXTURE_CUBE_ARRAY
 					);
-				g_caps.limits.maxTextureSize   = 16384;
+				g_caps.limits.maxTextureSize   = D3D12_REQ_TEXTURE2D_U_OR_V_DIMENSION;
+				g_caps.limits.maxTextureLayers = D3D12_REQ_TEXTURE2D_ARRAY_AXIS_DIMENSION;
 				g_caps.limits.maxFBAttachments = uint8_t(bx::uint32_min(16, BGFX_CONFIG_MAX_FRAME_BUFFER_ATTACHMENTS) );
 				g_caps.limits.maxVertexStreams = BGFX_CONFIG_MAX_VERTEX_STREAMS;
 

src/renderer_gl.cpp

@@ -2316,7 +2316,8 @@ namespace bgfx { namespace gl
 					: 0
 					;
 
-				g_caps.limits.maxTextureSize = uint16_t(glGet(GL_MAX_TEXTURE_SIZE) );
+				g_caps.limits.maxTextureSize   = uint16_t(glGet(GL_MAX_TEXTURE_SIZE) );
+				g_caps.limits.maxTextureLayers = uint16_t(bx::max(glGet(GL_MAX_ARRAY_TEXTURE_LAYERS), 1) );
 
 				if (BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGL)
 				||  BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGLES >= 30)

src/renderer_gl.h

@@ -525,6 +525,10 @@ typedef uint64_t GLuint64;
 #	define GL_MAX_DRAW_BUFFERS 0x8824
 #endif // GL_MAX_DRAW_BUFFERS
 
+#ifndef GL_MAX_ARRAY_TEXTURE_LAYERS
+#	define GL_MAX_ARRAY_TEXTURE_LAYERS 0x88FF
+#endif // GL_MAX_ARRAY_TEXTURE_LAYERS
+
 #ifndef GL_QUERY_RESULT
 #	define GL_QUERY_RESULT 0x8866
 #endif // GL_QUERY_RESULT

src/renderer_noop.cpp

@@ -38,6 +38,35 @@ namespace bgfx { namespace noop
 				| BGFX_CAPS_VERTEX_ATTRIB_HALF
 				| BGFX_CAPS_VERTEX_ATTRIB_UINT10
 				;
+
+			// Pretend all features are available for all texture formats.
+			for (uint32_t formatIdx = 0; formatIdx < TextureFormat::Count; ++formatIdx)
+			{
+				g_caps.formats[formatIdx] = 0
+					| BGFX_CAPS_FORMAT_TEXTURE_NONE
+					| BGFX_CAPS_FORMAT_TEXTURE_2D
+					| BGFX_CAPS_FORMAT_TEXTURE_2D_SRGB
+					| BGFX_CAPS_FORMAT_TEXTURE_2D_EMULATED
+					| BGFX_CAPS_FORMAT_TEXTURE_3D
+					| BGFX_CAPS_FORMAT_TEXTURE_3D_SRGB
+					| BGFX_CAPS_FORMAT_TEXTURE_3D_EMULATED
+					| BGFX_CAPS_FORMAT_TEXTURE_CUBE
+					| BGFX_CAPS_FORMAT_TEXTURE_CUBE_SRGB
+					| BGFX_CAPS_FORMAT_TEXTURE_CUBE_EMULATED
+					| BGFX_CAPS_FORMAT_TEXTURE_VERTEX
+					| BGFX_CAPS_FORMAT_TEXTURE_IMAGE
+					| BGFX_CAPS_FORMAT_TEXTURE_FRAMEBUFFER
+					| BGFX_CAPS_FORMAT_TEXTURE_FRAMEBUFFER_MSAA
+					| BGFX_CAPS_FORMAT_TEXTURE_MSAA
+					| BGFX_CAPS_FORMAT_TEXTURE_MIP_AUTOGEN
+					;
+			}
+
+			// Pretend we have no limits
+			g_caps.limits.maxTextureSize   = 16384;
+			g_caps.limits.maxTextureLayers = 2048;
+			g_caps.limits.maxFBAttachments = BGFX_CONFIG_MAX_FRAME_BUFFER_ATTACHMENTS;
+			g_caps.limits.maxVertexStreams = BGFX_CONFIG_MAX_VERTEX_STREAMS;
 		}
 
 		~RendererContextNOOP()