Fixed issue #823.

src/renderer_d3d11.cpp

@@ -1342,7 +1342,7 @@ BX_PRAGMA_DIAGNOSTIC_POP();
 
 				for (uint32_t ii = 0; ii < TextureFormat::Count; ++ii)
 				{
-					uint8_t support = BGFX_CAPS_FORMAT_TEXTURE_NONE;
+					uint16_t support = BGFX_CAPS_FORMAT_TEXTURE_NONE;
 
 					const DXGI_FORMAT fmt = isDepth(TextureFormat::Enum(ii) )
 						? s_textureFormat[ii].m_fmtDsv

src/renderer_d3d12.cpp

@@ -1014,7 +1014,7 @@ namespace bgfx { namespace d3d12
 
 				for (uint32_t ii = 0; ii < TextureFormat::Count; ++ii)
 				{
-					uint8_t support = BGFX_CAPS_FORMAT_TEXTURE_NONE;
+					uint16_t support = BGFX_CAPS_FORMAT_TEXTURE_NONE;
 
 					const DXGI_FORMAT fmt = isDepth(TextureFormat::Enum(ii) )
 						? s_textureFormat[ii].m_fmtDsv

src/renderer_gl.cpp

@@ -1686,7 +1686,7 @@ namespace bgfx { namespace gl
 
 			for (uint32_t ii = 0; ii < TextureFormat::Count; ++ii)
 			{
-				uint8_t supported = 0;
+				uint16_t supported = BGFX_CAPS_FORMAT_TEXTURE_NONE;
 				supported |= s_textureFormat[ii].m_supported
 					? BGFX_CAPS_FORMAT_TEXTURE_2D
 					| BGFX_CAPS_FORMAT_TEXTURE_3D