[VK_FORMAT_BC2_SRGB_BLOCK] = PIPE_FORMAT_DXT3_SRGBA,
[VK_FORMAT_BC3_UNORM_BLOCK] = PIPE_FORMAT_DXT5_RGBA,
[VK_FORMAT_BC3_SRGB_BLOCK] = PIPE_FORMAT_DXT5_SRGBA,
+ [VK_FORMAT_BC4_UNORM_BLOCK] = PIPE_FORMAT_RGTC1_UNORM,
+ [VK_FORMAT_BC4_SNORM_BLOCK] = PIPE_FORMAT_RGTC1_SNORM,
+ [VK_FORMAT_BC5_UNORM_BLOCK] = PIPE_FORMAT_RGTC2_UNORM,
+ [VK_FORMAT_BC5_SNORM_BLOCK] = PIPE_FORMAT_RGTC2_SNORM,
[VK_FORMAT_BC6H_UFLOAT_BLOCK] = PIPE_FORMAT_BPTC_RGB_UFLOAT,
[VK_FORMAT_BC6H_SFLOAT_BLOCK] = PIPE_FORMAT_BPTC_RGB_FLOAT,
[VK_FORMAT_BC7_UNORM_BLOCK] = PIPE_FORMAT_BPTC_RGBA_UNORM,