Adds a utility function to calculate the size of a pixel given a DXGI format.
TRAC #22208
Author: Shannon Woods
Signed-off-by: Geoff Lang
Signed-off-by: Daniel Koch
git-svn-id: https://angleproject.googlecode.com/svn/branches/dx11proto@1590 736b8ea6-26fd-11df-bfd4-992fa37f6226
diff --git a/src/libGLESv2/renderer/renderer11_utils.cpp b/src/libGLESv2/renderer/renderer11_utils.cpp
index 3a888cb..de5bcd3 100644
--- a/src/libGLESv2/renderer/renderer11_utils.cpp
+++ b/src/libGLESv2/renderer/renderer11_utils.cpp
@@ -313,3 +313,164 @@
return DXGI_FORMAT_R8G8B8A8_UNORM;
}
}
+
+namespace d3d11
+{
+size_t ComputePixelSizeBits(DXGI_FORMAT format)
+{
+ switch (format)
+ {
+ case DXGI_FORMAT_R1_UNORM:
+ return 1;
+
+ case DXGI_FORMAT_A8_UNORM:
+ case DXGI_FORMAT_R8_SINT:
+ case DXGI_FORMAT_R8_SNORM:
+ case DXGI_FORMAT_R8_TYPELESS:
+ case DXGI_FORMAT_R8_UINT:
+ case DXGI_FORMAT_R8_UNORM:
+ return 8;
+
+ case DXGI_FORMAT_B5G5R5A1_UNORM:
+ case DXGI_FORMAT_B5G6R5_UNORM:
+ case DXGI_FORMAT_D16_UNORM:
+ case DXGI_FORMAT_R16_FLOAT:
+ case DXGI_FORMAT_R16_SINT:
+ case DXGI_FORMAT_R16_SNORM:
+ case DXGI_FORMAT_R16_TYPELESS:
+ case DXGI_FORMAT_R16_UINT:
+ case DXGI_FORMAT_R16_UNORM:
+ case DXGI_FORMAT_R8G8_SINT:
+ case DXGI_FORMAT_R8G8_SNORM:
+ case DXGI_FORMAT_R8G8_TYPELESS:
+ case DXGI_FORMAT_R8G8_UINT:
+ case DXGI_FORMAT_R8G8_UNORM:
+ return 16;
+
+ case DXGI_FORMAT_B8G8R8X8_TYPELESS:
+ case DXGI_FORMAT_B8G8R8X8_UNORM:
+ case DXGI_FORMAT_B8G8R8X8_UNORM_SRGB:
+ case DXGI_FORMAT_D24_UNORM_S8_UINT:
+ case DXGI_FORMAT_D32_FLOAT:
+ case DXGI_FORMAT_D32_FLOAT_S8X24_UINT:
+ case DXGI_FORMAT_G8R8_G8B8_UNORM:
+ case DXGI_FORMAT_R10G10B10_XR_BIAS_A2_UNORM:
+ case DXGI_FORMAT_R10G10B10A2_TYPELESS:
+ case DXGI_FORMAT_R10G10B10A2_UINT:
+ case DXGI_FORMAT_R10G10B10A2_UNORM:
+ case DXGI_FORMAT_R11G11B10_FLOAT:
+ case DXGI_FORMAT_R16G16_FLOAT:
+ case DXGI_FORMAT_R16G16_SINT:
+ case DXGI_FORMAT_R16G16_SNORM:
+ case DXGI_FORMAT_R16G16_TYPELESS:
+ case DXGI_FORMAT_R16G16_UINT:
+ case DXGI_FORMAT_R16G16_UNORM:
+ case DXGI_FORMAT_R24_UNORM_X8_TYPELESS:
+ case DXGI_FORMAT_R24G8_TYPELESS:
+ case DXGI_FORMAT_R32_FLOAT:
+ case DXGI_FORMAT_R32_FLOAT_X8X24_TYPELESS:
+ case DXGI_FORMAT_R32_SINT:
+ case DXGI_FORMAT_R32_TYPELESS:
+ case DXGI_FORMAT_R32_UINT:
+ case DXGI_FORMAT_R8G8_B8G8_UNORM:
+ case DXGI_FORMAT_R8G8B8A8_SINT:
+ case DXGI_FORMAT_R8G8B8A8_SNORM:
+ case DXGI_FORMAT_R8G8B8A8_TYPELESS:
+ case DXGI_FORMAT_R8G8B8A8_UINT:
+ case DXGI_FORMAT_R8G8B8A8_UNORM:
+ case DXGI_FORMAT_R8G8B8A8_UNORM_SRGB:
+ case DXGI_FORMAT_B8G8R8A8_TYPELESS:
+ case DXGI_FORMAT_B8G8R8A8_UNORM:
+ case DXGI_FORMAT_B8G8R8A8_UNORM_SRGB:
+ case DXGI_FORMAT_R9G9B9E5_SHAREDEXP:
+ case DXGI_FORMAT_X24_TYPELESS_G8_UINT:
+ case DXGI_FORMAT_X32_TYPELESS_G8X24_UINT:
+ return 32;
+
+ case DXGI_FORMAT_R16G16B16A16_FLOAT:
+ case DXGI_FORMAT_R16G16B16A16_SINT:
+ case DXGI_FORMAT_R16G16B16A16_SNORM:
+ case DXGI_FORMAT_R16G16B16A16_TYPELESS:
+ case DXGI_FORMAT_R16G16B16A16_UINT:
+ case DXGI_FORMAT_R16G16B16A16_UNORM:
+ case DXGI_FORMAT_R32G32_FLOAT:
+ case DXGI_FORMAT_R32G32_SINT:
+ case DXGI_FORMAT_R32G32_TYPELESS:
+ case DXGI_FORMAT_R32G32_UINT:
+ case DXGI_FORMAT_R32G8X24_TYPELESS:
+ return 64;
+
+ case DXGI_FORMAT_R32G32B32_FLOAT:
+ case DXGI_FORMAT_R32G32B32_SINT:
+ case DXGI_FORMAT_R32G32B32_TYPELESS:
+ case DXGI_FORMAT_R32G32B32_UINT:
+ return 96;
+
+ case DXGI_FORMAT_R32G32B32A32_FLOAT:
+ case DXGI_FORMAT_R32G32B32A32_SINT:
+ case DXGI_FORMAT_R32G32B32A32_TYPELESS:
+ case DXGI_FORMAT_R32G32B32A32_UINT:
+ return 128;
+
+ case DXGI_FORMAT_BC1_TYPELESS:
+ case DXGI_FORMAT_BC1_UNORM:
+ case DXGI_FORMAT_BC1_UNORM_SRGB:
+ case DXGI_FORMAT_BC4_SNORM:
+ case DXGI_FORMAT_BC4_TYPELESS:
+ case DXGI_FORMAT_BC4_UNORM:
+ return 4;
+
+ case DXGI_FORMAT_BC2_TYPELESS:
+ case DXGI_FORMAT_BC2_UNORM:
+ case DXGI_FORMAT_BC2_UNORM_SRGB:
+ case DXGI_FORMAT_BC3_TYPELESS:
+ case DXGI_FORMAT_BC3_UNORM:
+ case DXGI_FORMAT_BC3_UNORM_SRGB:
+ case DXGI_FORMAT_BC5_SNORM:
+ case DXGI_FORMAT_BC5_TYPELESS:
+ case DXGI_FORMAT_BC5_UNORM:
+ case DXGI_FORMAT_BC6H_SF16:
+ case DXGI_FORMAT_BC6H_TYPELESS:
+ case DXGI_FORMAT_BC6H_UF16:
+ case DXGI_FORMAT_BC7_TYPELESS:
+ case DXGI_FORMAT_BC7_UNORM:
+ case DXGI_FORMAT_BC7_UNORM_SRGB:
+ return 8;
+
+ default:
+ return 0;
+ }
+}
+
+size_t ComputeBlockSizeBits(DXGI_FORMAT format)
+{
+ switch (format)
+ {
+ case DXGI_FORMAT_BC1_TYPELESS:
+ case DXGI_FORMAT_BC1_UNORM:
+ case DXGI_FORMAT_BC1_UNORM_SRGB:
+ case DXGI_FORMAT_BC4_SNORM:
+ case DXGI_FORMAT_BC4_TYPELESS:
+ case DXGI_FORMAT_BC4_UNORM:
+ case DXGI_FORMAT_BC2_TYPELESS:
+ case DXGI_FORMAT_BC2_UNORM:
+ case DXGI_FORMAT_BC2_UNORM_SRGB:
+ case DXGI_FORMAT_BC3_TYPELESS:
+ case DXGI_FORMAT_BC3_UNORM:
+ case DXGI_FORMAT_BC3_UNORM_SRGB:
+ case DXGI_FORMAT_BC5_SNORM:
+ case DXGI_FORMAT_BC5_TYPELESS:
+ case DXGI_FORMAT_BC5_UNORM:
+ case DXGI_FORMAT_BC6H_SF16:
+ case DXGI_FORMAT_BC6H_TYPELESS:
+ case DXGI_FORMAT_BC6H_UF16:
+ case DXGI_FORMAT_BC7_TYPELESS:
+ case DXGI_FORMAT_BC7_UNORM:
+ case DXGI_FORMAT_BC7_UNORM_SRGB:
+ return ComputePixelSizeBits(format) * 16;
+ default:
+ UNREACHABLE();
+ return 0;
+ }
+}
+}
\ No newline at end of file