// Copyright 2019 The SwiftShader Authors. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//    http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

#include "VkFormat.h"
#include "VkDebug.hpp"
#include "System/Math.hpp"

namespace vk
{

bool Format::isUnsignedNormalized() const
{
	switch(format)
	{
	case VK_FORMAT_R4G4_UNORM_PACK8:
	case VK_FORMAT_R4G4B4A4_UNORM_PACK16:
	case VK_FORMAT_B4G4R4A4_UNORM_PACK16:
	case VK_FORMAT_A1R5G5B5_UNORM_PACK16:
	case VK_FORMAT_R5G5B5A1_UNORM_PACK16:
	case VK_FORMAT_B5G5R5A1_UNORM_PACK16:
	case VK_FORMAT_R5G6B5_UNORM_PACK16:
	case VK_FORMAT_B5G6R5_UNORM_PACK16:
	case VK_FORMAT_R8_UNORM:
	case VK_FORMAT_R8G8_UNORM:
	case VK_FORMAT_R8G8B8_UNORM:
	case VK_FORMAT_R8G8B8A8_UNORM:
	case VK_FORMAT_A8B8G8R8_UNORM_PACK32:
	case VK_FORMAT_B8G8R8A8_UNORM:
	case VK_FORMAT_A2R10G10B10_UNORM_PACK32:
	case VK_FORMAT_A2B10G10R10_UNORM_PACK32:
	case VK_FORMAT_R16_UNORM:
	case VK_FORMAT_R16G16_UNORM:
	case VK_FORMAT_R16G16B16_UNORM:
	case VK_FORMAT_R16G16B16A16_UNORM:
		return true;
	default:
		return false;
	}
}

bool Format::isSignedNormalized() const
{
	switch(format)
	{
	case VK_FORMAT_R8_SNORM:
	case VK_FORMAT_R8G8_SNORM:
	case VK_FORMAT_R8G8B8_SNORM:
	case VK_FORMAT_R8G8B8A8_SNORM:
	case VK_FORMAT_A8B8G8R8_SNORM_PACK32:
	case VK_FORMAT_B8G8R8A8_SNORM:
	case VK_FORMAT_A2R10G10B10_SNORM_PACK32:
	case VK_FORMAT_A2B10G10R10_SNORM_PACK32:
	case VK_FORMAT_R16_SNORM:
	case VK_FORMAT_R16G16_SNORM:
	case VK_FORMAT_R16G16B16_SNORM:
	case VK_FORMAT_R16G16B16A16_SNORM:
		return true;
	default:
		return false;
	}
}

bool Format::isSignedNonNormalizedInteger() const
{
	switch(format)
	{
	case VK_FORMAT_R8_SINT:
	case VK_FORMAT_R8G8_SINT:
	case VK_FORMAT_R8G8B8_SINT:
	case VK_FORMAT_B8G8R8_SINT:
	case VK_FORMAT_R8G8B8A8_SINT:
	case VK_FORMAT_B8G8R8A8_SINT:
	case VK_FORMAT_A8B8G8R8_SINT_PACK32:
	case VK_FORMAT_A2R10G10B10_SINT_PACK32:
	case VK_FORMAT_A2B10G10R10_SINT_PACK32:
	case VK_FORMAT_R16_SINT:
	case VK_FORMAT_R16G16_SINT:
	case VK_FORMAT_R16G16B16_SINT:
	case VK_FORMAT_R16G16B16A16_SINT:
	case VK_FORMAT_R32_SINT:
	case VK_FORMAT_R32G32_SINT:
	case VK_FORMAT_R32G32B32_SINT:
	case VK_FORMAT_R32G32B32A32_SINT:
	case VK_FORMAT_R64_SINT:
	case VK_FORMAT_R64G64_SINT:
	case VK_FORMAT_R64G64B64_SINT:
	case VK_FORMAT_R64G64B64A64_SINT:
		return true;
	default:
		return false;
	}
}

bool Format::isUnsignedNonNormalizedInteger() const
{
	switch(format)
	{
	case VK_FORMAT_R8_UINT:
	case VK_FORMAT_R8G8_UINT:
	case VK_FORMAT_R8G8B8_UINT:
	case VK_FORMAT_B8G8R8_UINT:
	case VK_FORMAT_R8G8B8A8_UINT:
	case VK_FORMAT_B8G8R8A8_UINT:
	case VK_FORMAT_A8B8G8R8_UINT_PACK32:
	case VK_FORMAT_A2R10G10B10_UINT_PACK32:
	case VK_FORMAT_A2B10G10R10_UINT_PACK32:
	case VK_FORMAT_R16_UINT:
	case VK_FORMAT_R16G16_UINT:
	case VK_FORMAT_R16G16B16_UINT:
	case VK_FORMAT_R16G16B16A16_UINT:
	case VK_FORMAT_R32_UINT:
	case VK_FORMAT_R32G32_UINT:
	case VK_FORMAT_R32G32B32_UINT:
	case VK_FORMAT_R32G32B32A32_UINT:
	case VK_FORMAT_R64_UINT:
	case VK_FORMAT_R64G64_UINT:
	case VK_FORMAT_R64G64B64_UINT:
	case VK_FORMAT_R64G64B64A64_UINT:
		return true;
	default:
		return false;
	}
}

bool Format::isNonNormalizedInteger() const
{
	return isSignedNonNormalizedInteger() || isUnsignedNonNormalizedInteger();
}

VkImageAspectFlags Format::getAspects() const
{
	// TODO: probably just flatten this out to a full format list, and alter
	// isDepth / isStencil etc to check for their aspect

	VkImageAspectFlags aspects = 0;
	if (isDepth()) aspects |= VK_IMAGE_ASPECT_DEPTH_BIT;
	if (isStencil()) aspects |= VK_IMAGE_ASPECT_STENCIL_BIT;

	// YCbCr formats
	switch(format)
	{
	case VK_FORMAT_G8_B8_R8_3PLANE_420_UNORM:
		aspects = VK_IMAGE_ASPECT_PLANE_0_BIT | VK_IMAGE_ASPECT_PLANE_1_BIT | VK_IMAGE_ASPECT_PLANE_2_BIT;
		break;
	case VK_FORMAT_G8_B8R8_2PLANE_420_UNORM:
		aspects = VK_IMAGE_ASPECT_PLANE_0_BIT | VK_IMAGE_ASPECT_PLANE_1_BIT;
		break;
	default:
		ASSERT(!isYcbcrFormat());
		break;
	}

	// Anything else is "color".
	if (!aspects) aspects |= VK_IMAGE_ASPECT_COLOR_BIT;
	return aspects;
}

Format Format::getAspectFormat(VkImageAspectFlags aspect) const
{
	switch(aspect)
	{
	case VK_IMAGE_ASPECT_COLOR_BIT:
	case (VK_IMAGE_ASPECT_DEPTH_BIT | VK_IMAGE_ASPECT_STENCIL_BIT):
	case (VK_IMAGE_ASPECT_PLANE_0_BIT | VK_IMAGE_ASPECT_PLANE_1_BIT):
	case (VK_IMAGE_ASPECT_PLANE_0_BIT | VK_IMAGE_ASPECT_PLANE_1_BIT | VK_IMAGE_ASPECT_PLANE_2_BIT):
		return format;

	case VK_IMAGE_ASPECT_DEPTH_BIT:
		switch(format)
		{
		case VK_FORMAT_D16_UNORM:
		case VK_FORMAT_D16_UNORM_S8_UINT:
			return VK_FORMAT_D16_UNORM;
		case VK_FORMAT_D24_UNORM_S8_UINT:
			return VK_FORMAT_X8_D24_UNORM_PACK32;
		case VK_FORMAT_D32_SFLOAT:
		case VK_FORMAT_D32_SFLOAT_S8_UINT:
			return VK_FORMAT_D32_SFLOAT;
		default:
			UNSUPPORTED("format %d", int(format));
			break;
		}
		break;

	case VK_IMAGE_ASPECT_STENCIL_BIT:
		switch(format)
		{
		case VK_FORMAT_D16_UNORM_S8_UINT:
		case VK_FORMAT_D24_UNORM_S8_UINT:
		case VK_FORMAT_D32_SFLOAT_S8_UINT:
			return VK_FORMAT_S8_UINT;
		default:
			UNSUPPORTED("format %d", int(format));
			break;
		}
		break;

	// YCbCr formats
	// Vulkan 1.1 section 32.1.1. Compatible formats of planes of multi-planar formats
	case VK_IMAGE_ASPECT_PLANE_0_BIT:
		switch(format)
		{
		case VK_FORMAT_G8_B8_R8_3PLANE_420_UNORM:
		case VK_FORMAT_G8_B8R8_2PLANE_420_UNORM:
			return VK_FORMAT_R8_UNORM;
		default:
			UNSUPPORTED("format %d", int(format));
			break;
		}
		break;

	case VK_IMAGE_ASPECT_PLANE_1_BIT:
		switch(format)
		{
		case VK_FORMAT_G8_B8_R8_3PLANE_420_UNORM:
			return VK_FORMAT_R8_UNORM;
		case VK_FORMAT_G8_B8R8_2PLANE_420_UNORM:
			return VK_FORMAT_R8G8_UNORM;
		default:
			UNSUPPORTED("format %d", int(format));
			break;
		}
		break;

	case VK_IMAGE_ASPECT_PLANE_2_BIT:
		switch(format)
		{
		case VK_FORMAT_G8_B8_R8_3PLANE_420_UNORM:
			return VK_FORMAT_R8_UNORM;
		default:
			UNSUPPORTED("format %d", int(format));
			break;
		}
		break;

	default:
		UNSUPPORTED("aspect %x", int(aspect));
		break;
	}

	return format;
}

bool Format::isStencil() const
{
	switch(format)
	{
	case VK_FORMAT_D16_UNORM_S8_UINT:
	case VK_FORMAT_D24_UNORM_S8_UINT:
	case VK_FORMAT_S8_UINT:
	case VK_FORMAT_D32_SFLOAT_S8_UINT:
		return true;
	case VK_FORMAT_D16_UNORM:
	case VK_FORMAT_X8_D24_UNORM_PACK32:
	case VK_FORMAT_D32_SFLOAT:
	default:
		return false;
	}
}

bool Format::isDepth() const
{
	switch(format)
	{
	case VK_FORMAT_D16_UNORM:
	case VK_FORMAT_D16_UNORM_S8_UINT:
	case VK_FORMAT_X8_D24_UNORM_PACK32:
	case VK_FORMAT_D24_UNORM_S8_UINT:
	case VK_FORMAT_D32_SFLOAT:
	case VK_FORMAT_D32_SFLOAT_S8_UINT:
		return true;
	case VK_FORMAT_S8_UINT:
	default:
		return false;
	}
}

bool Format::hasQuadLayout() const
{
	switch(format)
	{
	case VK_FORMAT_S8_UINT:
		return true;
	default:
		return false;
	}
}

VkFormat Format::getNonQuadLayoutFormat() const
{
	switch(format)
	{
	case VK_FORMAT_S8_UINT:
		return VK_FORMAT_R8_UINT;
	default:
		return format;
	}
}

bool Format::isSRGBformat() const
{
	switch(format)
	{
	case VK_FORMAT_R8_SRGB:
	case VK_FORMAT_R8G8_SRGB:
	case VK_FORMAT_R8G8B8_SRGB:
	case VK_FORMAT_B8G8R8_SRGB:
	case VK_FORMAT_R8G8B8A8_SRGB:
	case VK_FORMAT_B8G8R8A8_SRGB:
	case VK_FORMAT_A8B8G8R8_SRGB_PACK32:
	case VK_FORMAT_ETC2_R8G8B8_SRGB_BLOCK:
	case VK_FORMAT_ETC2_R8G8B8A1_SRGB_BLOCK:
	case VK_FORMAT_ETC2_R8G8B8A8_SRGB_BLOCK:
		return true;
	default:
		return false;
	}
}

bool Format::isFloatFormat() const
{
	switch(format)
	{
	case VK_FORMAT_R4G4_UNORM_PACK8:
	case VK_FORMAT_R4G4B4A4_UNORM_PACK16:
	case VK_FORMAT_B4G4R4A4_UNORM_PACK16:
	case VK_FORMAT_R5G6B5_UNORM_PACK16:
	case VK_FORMAT_B5G6R5_UNORM_PACK16:
	case VK_FORMAT_R5G5B5A1_UNORM_PACK16:
	case VK_FORMAT_B5G5R5A1_UNORM_PACK16:
	case VK_FORMAT_A1R5G5B5_UNORM_PACK16:
	case VK_FORMAT_R8_UNORM:
	case VK_FORMAT_R8_SNORM:
	case VK_FORMAT_R8_USCALED:
	case VK_FORMAT_R8_SSCALED:
	case VK_FORMAT_R8_UINT:
	case VK_FORMAT_R8_SINT:
	case VK_FORMAT_R8_SRGB:
	case VK_FORMAT_R8G8_UNORM:
	case VK_FORMAT_R8G8_SNORM:
	case VK_FORMAT_R8G8_USCALED:
	case VK_FORMAT_R8G8_SSCALED:
	case VK_FORMAT_R8G8_UINT:
	case VK_FORMAT_R8G8_SINT:
	case VK_FORMAT_R8G8_SRGB:
	case VK_FORMAT_R8G8B8_UNORM:
	case VK_FORMAT_R8G8B8_SNORM:
	case VK_FORMAT_R8G8B8_USCALED:
	case VK_FORMAT_R8G8B8_SSCALED:
	case VK_FORMAT_R8G8B8_UINT:
	case VK_FORMAT_R8G8B8_SINT:
	case VK_FORMAT_R8G8B8_SRGB:
	case VK_FORMAT_B8G8R8_UNORM:
	case VK_FORMAT_B8G8R8_SNORM:
	case VK_FORMAT_B8G8R8_USCALED:
	case VK_FORMAT_B8G8R8_SSCALED:
	case VK_FORMAT_B8G8R8_UINT:
	case VK_FORMAT_B8G8R8_SINT:
	case VK_FORMAT_B8G8R8_SRGB:
	case VK_FORMAT_R8G8B8A8_UNORM:
	case VK_FORMAT_R8G8B8A8_SNORM:
	case VK_FORMAT_R8G8B8A8_USCALED:
	case VK_FORMAT_R8G8B8A8_SSCALED:
	case VK_FORMAT_R8G8B8A8_UINT:
	case VK_FORMAT_R8G8B8A8_SINT:
	case VK_FORMAT_R8G8B8A8_SRGB:
	case VK_FORMAT_B8G8R8A8_UNORM:
	case VK_FORMAT_B8G8R8A8_SNORM:
	case VK_FORMAT_B8G8R8A8_USCALED:
	case VK_FORMAT_B8G8R8A8_SSCALED:
	case VK_FORMAT_B8G8R8A8_UINT:
	case VK_FORMAT_B8G8R8A8_SINT:
	case VK_FORMAT_B8G8R8A8_SRGB:
	case VK_FORMAT_A8B8G8R8_UNORM_PACK32:
	case VK_FORMAT_A8B8G8R8_SNORM_PACK32:
	case VK_FORMAT_A8B8G8R8_USCALED_PACK32:
	case VK_FORMAT_A8B8G8R8_SSCALED_PACK32:
	case VK_FORMAT_A8B8G8R8_UINT_PACK32:
	case VK_FORMAT_A8B8G8R8_SINT_PACK32:
	case VK_FORMAT_A8B8G8R8_SRGB_PACK32:
	case VK_FORMAT_A2R10G10B10_UNORM_PACK32:
	case VK_FORMAT_A2R10G10B10_SNORM_PACK32:
	case VK_FORMAT_A2R10G10B10_USCALED_PACK32:
	case VK_FORMAT_A2R10G10B10_SSCALED_PACK32:
	case VK_FORMAT_A2R10G10B10_UINT_PACK32:
	case VK_FORMAT_A2R10G10B10_SINT_PACK32:
	case VK_FORMAT_A2B10G10R10_UNORM_PACK32:
	case VK_FORMAT_A2B10G10R10_SNORM_PACK32:
	case VK_FORMAT_A2B10G10R10_USCALED_PACK32:
	case VK_FORMAT_A2B10G10R10_SSCALED_PACK32:
	case VK_FORMAT_A2B10G10R10_UINT_PACK32:
	case VK_FORMAT_A2B10G10R10_SINT_PACK32:
	case VK_FORMAT_R16_UNORM:
	case VK_FORMAT_R16_SNORM:
	case VK_FORMAT_R16_USCALED:
	case VK_FORMAT_R16_SSCALED:
	case VK_FORMAT_R16_UINT:
	case VK_FORMAT_R16_SINT:
	case VK_FORMAT_R16G16_UNORM:
	case VK_FORMAT_R16G16_SNORM:
	case VK_FORMAT_R16G16_USCALED:
	case VK_FORMAT_R16G16_SSCALED:
	case VK_FORMAT_R16G16_UINT:
	case VK_FORMAT_R16G16_SINT:
	case VK_FORMAT_R16G16B16_UNORM:
	case VK_FORMAT_R16G16B16_SNORM:
	case VK_FORMAT_R16G16B16_USCALED:
	case VK_FORMAT_R16G16B16_SSCALED:
	case VK_FORMAT_R16G16B16_UINT:
	case VK_FORMAT_R16G16B16_SINT:
	case VK_FORMAT_R16G16B16A16_UNORM:
	case VK_FORMAT_R16G16B16A16_SNORM:
	case VK_FORMAT_R16G16B16A16_USCALED:
	case VK_FORMAT_R16G16B16A16_SSCALED:
	case VK_FORMAT_R16G16B16A16_UINT:
	case VK_FORMAT_R16G16B16A16_SINT:
	case VK_FORMAT_R32_UINT:
	case VK_FORMAT_R32_SINT:
	case VK_FORMAT_R32G32_UINT:
	case VK_FORMAT_R32G32_SINT:
	case VK_FORMAT_R32G32B32_UINT:
	case VK_FORMAT_R32G32B32_SINT:
	case VK_FORMAT_R32G32B32A32_UINT:
	case VK_FORMAT_R32G32B32A32_SINT:
	case VK_FORMAT_R64_UINT:
	case VK_FORMAT_R64_SINT:
	case VK_FORMAT_R64G64_UINT:
	case VK_FORMAT_R64G64_SINT:
	case VK_FORMAT_R64G64B64_UINT:
	case VK_FORMAT_R64G64B64_SINT:
	case VK_FORMAT_R64G64B64A64_UINT:
	case VK_FORMAT_R64G64B64A64_SINT:
	case VK_FORMAT_D16_UNORM:
	case VK_FORMAT_X8_D24_UNORM_PACK32:
	case VK_FORMAT_S8_UINT:
	case VK_FORMAT_D16_UNORM_S8_UINT:
	case VK_FORMAT_D24_UNORM_S8_UINT:
	case VK_FORMAT_G8_B8_R8_3PLANE_420_UNORM:
	case VK_FORMAT_G8_B8R8_2PLANE_420_UNORM:
		return false;
	case VK_FORMAT_R16_SFLOAT:
	case VK_FORMAT_R16G16_SFLOAT:
	case VK_FORMAT_R16G16B16_SFLOAT:
	case VK_FORMAT_R16G16B16A16_SFLOAT:
	case VK_FORMAT_R32_SFLOAT:
	case VK_FORMAT_R32G32_SFLOAT:
	case VK_FORMAT_R32G32B32_SFLOAT:
	case VK_FORMAT_R32G32B32A32_SFLOAT:
	case VK_FORMAT_R64_SFLOAT:
	case VK_FORMAT_R64G64_SFLOAT:
	case VK_FORMAT_R64G64B64_SFLOAT:
	case VK_FORMAT_R64G64B64A64_SFLOAT:
	case VK_FORMAT_B10G11R11_UFLOAT_PACK32:
	case VK_FORMAT_E5B9G9R9_UFLOAT_PACK32:
	case VK_FORMAT_D32_SFLOAT:
	case VK_FORMAT_D32_SFLOAT_S8_UINT:
		return true;
	default:
		UNIMPLEMENTED("Format: %d", int(format));
	}

	return false;
}

bool Format::isYcbcrFormat() const
{
	switch(format)
	{
	case VK_FORMAT_G8_B8_R8_3PLANE_420_UNORM:
	case VK_FORMAT_G8_B8R8_2PLANE_420_UNORM:
		return true;
	default:
		return false;
	}
}

bool Format::isCompressed() const
{
	switch(format)
	{
	case VK_FORMAT_BC1_RGB_UNORM_BLOCK:
	case VK_FORMAT_BC1_RGB_SRGB_BLOCK:
	case VK_FORMAT_BC1_RGBA_UNORM_BLOCK:
	case VK_FORMAT_BC1_RGBA_SRGB_BLOCK:
	case VK_FORMAT_BC2_UNORM_BLOCK:
	case VK_FORMAT_BC2_SRGB_BLOCK:
	case VK_FORMAT_BC3_UNORM_BLOCK:
	case VK_FORMAT_BC3_SRGB_BLOCK:
	case VK_FORMAT_BC4_UNORM_BLOCK:
	case VK_FORMAT_BC4_SNORM_BLOCK:
	case VK_FORMAT_BC5_UNORM_BLOCK:
	case VK_FORMAT_BC5_SNORM_BLOCK:
	case VK_FORMAT_BC6H_UFLOAT_BLOCK:
	case VK_FORMAT_BC6H_SFLOAT_BLOCK:
	case VK_FORMAT_BC7_UNORM_BLOCK:
	case VK_FORMAT_BC7_SRGB_BLOCK:
	case VK_FORMAT_ETC2_R8G8B8_UNORM_BLOCK:
	case VK_FORMAT_ETC2_R8G8B8_SRGB_BLOCK:
	case VK_FORMAT_ETC2_R8G8B8A1_UNORM_BLOCK:
	case VK_FORMAT_ETC2_R8G8B8A1_SRGB_BLOCK:
	case VK_FORMAT_ETC2_R8G8B8A8_UNORM_BLOCK:
	case VK_FORMAT_ETC2_R8G8B8A8_SRGB_BLOCK:
	case VK_FORMAT_EAC_R11_UNORM_BLOCK:
	case VK_FORMAT_EAC_R11_SNORM_BLOCK:
	case VK_FORMAT_EAC_R11G11_UNORM_BLOCK:
	case VK_FORMAT_EAC_R11G11_SNORM_BLOCK:
	case VK_FORMAT_ASTC_4x4_UNORM_BLOCK:
	case VK_FORMAT_ASTC_4x4_SRGB_BLOCK:
	case VK_FORMAT_ASTC_5x4_UNORM_BLOCK:
	case VK_FORMAT_ASTC_5x4_SRGB_BLOCK:
	case VK_FORMAT_ASTC_5x5_UNORM_BLOCK:
	case VK_FORMAT_ASTC_5x5_SRGB_BLOCK:
	case VK_FORMAT_ASTC_6x5_UNORM_BLOCK:
	case VK_FORMAT_ASTC_6x5_SRGB_BLOCK:
	case VK_FORMAT_ASTC_6x6_UNORM_BLOCK:
	case VK_FORMAT_ASTC_6x6_SRGB_BLOCK:
	case VK_FORMAT_ASTC_8x5_UNORM_BLOCK:
	case VK_FORMAT_ASTC_8x5_SRGB_BLOCK:
	case VK_FORMAT_ASTC_8x6_UNORM_BLOCK:
	case VK_FORMAT_ASTC_8x6_SRGB_BLOCK:
	case VK_FORMAT_ASTC_8x8_UNORM_BLOCK:
	case VK_FORMAT_ASTC_8x8_SRGB_BLOCK:
	case VK_FORMAT_ASTC_10x5_UNORM_BLOCK:
	case VK_FORMAT_ASTC_10x5_SRGB_BLOCK:
	case VK_FORMAT_ASTC_10x6_UNORM_BLOCK:
	case VK_FORMAT_ASTC_10x6_SRGB_BLOCK:
	case VK_FORMAT_ASTC_10x8_UNORM_BLOCK:
	case VK_FORMAT_ASTC_10x8_SRGB_BLOCK:
	case VK_FORMAT_ASTC_10x10_UNORM_BLOCK:
	case VK_FORMAT_ASTC_10x10_SRGB_BLOCK:
	case VK_FORMAT_ASTC_12x10_UNORM_BLOCK:
	case VK_FORMAT_ASTC_12x10_SRGB_BLOCK:
	case VK_FORMAT_ASTC_12x12_UNORM_BLOCK:
	case VK_FORMAT_ASTC_12x12_SRGB_BLOCK:
		return true;
	default:
		return false;
	}
}

VkFormat Format::getDecompressedFormat() const
{
	// Note: our ETC2 decoder decompresses the 64 bit RGB compressed texel data to B8G8R8
	switch(format)
	{
	case VK_FORMAT_ETC2_R8G8B8_UNORM_BLOCK:
		return VK_FORMAT_B8G8R8A8_UNORM;
	case VK_FORMAT_ETC2_R8G8B8_SRGB_BLOCK:
		return VK_FORMAT_B8G8R8A8_SRGB;
	case VK_FORMAT_ETC2_R8G8B8A1_UNORM_BLOCK:
	case VK_FORMAT_ETC2_R8G8B8A8_UNORM_BLOCK:
		return VK_FORMAT_B8G8R8A8_UNORM;
	case VK_FORMAT_ETC2_R8G8B8A1_SRGB_BLOCK:
	case VK_FORMAT_ETC2_R8G8B8A8_SRGB_BLOCK:
		return VK_FORMAT_B8G8R8A8_SRGB;
	case VK_FORMAT_EAC_R11_UNORM_BLOCK:
		return VK_FORMAT_R16_UNORM;
	case VK_FORMAT_EAC_R11_SNORM_BLOCK:
		return VK_FORMAT_R16_SNORM;
	case VK_FORMAT_EAC_R11G11_UNORM_BLOCK:
		return VK_FORMAT_R16G16_UNORM;
	case VK_FORMAT_EAC_R11G11_SNORM_BLOCK:
		return VK_FORMAT_R16G16_SNORM;
	default:
		UNIMPLEMENTED("format: %d", int(format));
		return VK_FORMAT_UNDEFINED;
	}
}

VkFormat Format::compatibleFormat() const
{
	// According to the Vulkan 1.1 Spec, 37.1.6. Format Compatibility Classes:
	// "Uncompressed color formats are compatible with each other if they occupy
	//  the same number of bits per texel block. Compressed color formats are
	//  compatible with each other if the only difference between them is the
	//  numerical type of the uncompressed pixels (e.g. signed vs. unsigned, or
	//  SRGB vs. UNORM encoding). Each depth/stencil format is only compatible
	//  with itself. In the following table, all the formats in the same row are
	//  compatible."

	// Return a single format per group of compatible formats, for quick comparison
	switch(format)
	{
	// 8 - bit, Block size 1 byte, 1 texel / block
	case VK_FORMAT_R4G4_UNORM_PACK8:
	case VK_FORMAT_R8_UNORM:
	case VK_FORMAT_R8_SNORM:
	case VK_FORMAT_R8_USCALED:
	case VK_FORMAT_R8_SSCALED:
	case VK_FORMAT_R8_UINT:
	case VK_FORMAT_R8_SINT:
	case VK_FORMAT_R8_SRGB:
		return VK_FORMAT_R8_UNORM;

	// 16 - bit, Block size 2 bytes, 1 texel / block
	case VK_FORMAT_R4G4B4A4_UNORM_PACK16:
	case VK_FORMAT_B4G4R4A4_UNORM_PACK16:
	case VK_FORMAT_R5G6B5_UNORM_PACK16:
	case VK_FORMAT_B5G6R5_UNORM_PACK16:
	case VK_FORMAT_R5G5B5A1_UNORM_PACK16:
	case VK_FORMAT_B5G5R5A1_UNORM_PACK16:
	case VK_FORMAT_A1R5G5B5_UNORM_PACK16:
	case VK_FORMAT_R8G8_UNORM:
	case VK_FORMAT_R8G8_SNORM:
	case VK_FORMAT_R8G8_USCALED:
	case VK_FORMAT_R8G8_SSCALED:
	case VK_FORMAT_R8G8_UINT:
	case VK_FORMAT_R8G8_SINT:
	case VK_FORMAT_R8G8_SRGB:
	case VK_FORMAT_R16_UNORM:
	case VK_FORMAT_R16_SNORM:
	case VK_FORMAT_R16_USCALED:
	case VK_FORMAT_R16_SSCALED:
	case VK_FORMAT_R16_UINT:
	case VK_FORMAT_R16_SINT:
	case VK_FORMAT_R16_SFLOAT:
	case VK_FORMAT_R10X6_UNORM_PACK16:
	case VK_FORMAT_R12X4_UNORM_PACK16:
		return VK_FORMAT_R16_UNORM;

	// 24 - bit, Block size 3 bytes, 1 texel / block
	case VK_FORMAT_R8G8B8_UNORM:
	case VK_FORMAT_R8G8B8_SNORM:
	case VK_FORMAT_R8G8B8_USCALED:
	case VK_FORMAT_R8G8B8_SSCALED:
	case VK_FORMAT_R8G8B8_UINT:
	case VK_FORMAT_R8G8B8_SINT:
	case VK_FORMAT_R8G8B8_SRGB:
	case VK_FORMAT_B8G8R8_UNORM:
	case VK_FORMAT_B8G8R8_SNORM:
	case VK_FORMAT_B8G8R8_USCALED:
	case VK_FORMAT_B8G8R8_SSCALED:
	case VK_FORMAT_B8G8R8_UINT:
	case VK_FORMAT_B8G8R8_SINT:
	case VK_FORMAT_B8G8R8_SRGB:
		return VK_FORMAT_R8G8B8_UNORM;

	// 32 - bit, Block size 4 bytes, 1 texel / block
	case VK_FORMAT_R8G8B8A8_UNORM:
	case VK_FORMAT_R8G8B8A8_SNORM:
	case VK_FORMAT_R8G8B8A8_USCALED:
	case VK_FORMAT_R8G8B8A8_SSCALED:
	case VK_FORMAT_R8G8B8A8_UINT:
	case VK_FORMAT_R8G8B8A8_SINT:
	case VK_FORMAT_R8G8B8A8_SRGB:
	case VK_FORMAT_B8G8R8A8_UNORM:
	case VK_FORMAT_B8G8R8A8_SNORM:
	case VK_FORMAT_B8G8R8A8_USCALED:
	case VK_FORMAT_B8G8R8A8_SSCALED:
	case VK_FORMAT_B8G8R8A8_UINT:
	case VK_FORMAT_B8G8R8A8_SINT:
	case VK_FORMAT_B8G8R8A8_SRGB:
	case VK_FORMAT_A8B8G8R8_UNORM_PACK32:
	case VK_FORMAT_A8B8G8R8_SNORM_PACK32:
	case VK_FORMAT_A8B8G8R8_USCALED_PACK32:
	case VK_FORMAT_A8B8G8R8_SSCALED_PACK32:
	case VK_FORMAT_A8B8G8R8_UINT_PACK32:
	case VK_FORMAT_A8B8G8R8_SINT_PACK32:
	case VK_FORMAT_A8B8G8R8_SRGB_PACK32:
	case VK_FORMAT_A2R10G10B10_UNORM_PACK32:
	case VK_FORMAT_A2R10G10B10_SNORM_PACK32:
	case VK_FORMAT_A2R10G10B10_USCALED_PACK32:
	case VK_FORMAT_A2R10G10B10_SSCALED_PACK32:
	case VK_FORMAT_A2R10G10B10_UINT_PACK32:
	case VK_FORMAT_A2R10G10B10_SINT_PACK32:
	case VK_FORMAT_A2B10G10R10_UNORM_PACK32:
	case VK_FORMAT_A2B10G10R10_SNORM_PACK32:
	case VK_FORMAT_A2B10G10R10_USCALED_PACK32:
	case VK_FORMAT_A2B10G10R10_SSCALED_PACK32:
	case VK_FORMAT_A2B10G10R10_UINT_PACK32:
	case VK_FORMAT_A2B10G10R10_SINT_PACK32:
	case VK_FORMAT_R16G16_UNORM:
	case VK_FORMAT_R16G16_SNORM:
	case VK_FORMAT_R16G16_USCALED:
	case VK_FORMAT_R16G16_SSCALED:
	case VK_FORMAT_R16G16_UINT:
	case VK_FORMAT_R16G16_SINT:
	case VK_FORMAT_R16G16_SFLOAT:
	case VK_FORMAT_R32_UINT:
	case VK_FORMAT_R32_SINT:
	case VK_FORMAT_R32_SFLOAT:
	case VK_FORMAT_B10G11R11_UFLOAT_PACK32:
	case VK_FORMAT_E5B9G9R9_UFLOAT_PACK32:
	case VK_FORMAT_R10X6G10X6_UNORM_2PACK16:
	case VK_FORMAT_R12X4G12X4_UNORM_2PACK16:
		return VK_FORMAT_R8G8B8A8_UNORM;

	// 48 - bit, Block size 6 bytes, 1 texel / block
	case VK_FORMAT_R16G16B16_UNORM:
	case VK_FORMAT_R16G16B16_SNORM:
	case VK_FORMAT_R16G16B16_USCALED:
	case VK_FORMAT_R16G16B16_SSCALED:
	case VK_FORMAT_R16G16B16_UINT:
	case VK_FORMAT_R16G16B16_SINT:
	case VK_FORMAT_R16G16B16_SFLOAT:
		return VK_FORMAT_R16G16B16_UNORM;

	// 64 - bit, Block size 8 bytes, 1 texel / block
	case VK_FORMAT_R16G16B16A16_UNORM:
	case VK_FORMAT_R16G16B16A16_SNORM:
	case VK_FORMAT_R16G16B16A16_USCALED:
	case VK_FORMAT_R16G16B16A16_SSCALED:
	case VK_FORMAT_R16G16B16A16_UINT:
	case VK_FORMAT_R16G16B16A16_SINT:
	case VK_FORMAT_R16G16B16A16_SFLOAT:
	case VK_FORMAT_R32G32_UINT:
	case VK_FORMAT_R32G32_SINT:
	case VK_FORMAT_R32G32_SFLOAT:
	case VK_FORMAT_R64_UINT:
	case VK_FORMAT_R64_SINT:
	case VK_FORMAT_R64_SFLOAT:
		return VK_FORMAT_R16G16B16A16_UNORM;

	// 96 - bit, Block size 12 bytes, 1 texel / block
	case VK_FORMAT_R32G32B32_UINT:
	case VK_FORMAT_R32G32B32_SINT:
	case VK_FORMAT_R32G32B32_SFLOAT:
		return VK_FORMAT_R32G32B32_UINT;

	// 128 - bit, Block size 16 bytes, 1 texel / block
	case VK_FORMAT_R32G32B32A32_UINT:
	case VK_FORMAT_R32G32B32A32_SINT:
	case VK_FORMAT_R32G32B32A32_SFLOAT:
	case VK_FORMAT_R64G64_UINT:
	case VK_FORMAT_R64G64_SINT:
	case VK_FORMAT_R64G64_SFLOAT:
		return VK_FORMAT_R32G32B32A32_UINT;

	// 192 - bit, Block size 24 bytes, 1 texel / block
	case VK_FORMAT_R64G64B64_UINT:
	case VK_FORMAT_R64G64B64_SINT:
	case VK_FORMAT_R64G64B64_SFLOAT:
		return VK_FORMAT_R64G64B64_UINT;

	// 256 - bit, Block size 32 bytes, 1 texel / block
	case VK_FORMAT_R64G64B64A64_UINT:
	case VK_FORMAT_R64G64B64A64_SINT:
	case VK_FORMAT_R64G64B64A64_SFLOAT:
		return VK_FORMAT_R64G64B64A64_UINT;

	// BC1_RGB(64 bit), Block size 8 bytes, 16 texels / block
	case VK_FORMAT_BC1_RGB_UNORM_BLOCK:
	case VK_FORMAT_BC1_RGB_SRGB_BLOCK:
		return VK_FORMAT_BC1_RGB_UNORM_BLOCK;

	// BC1_RGBA(64 bit), Block size 8 bytes, 16 texels / block
	case VK_FORMAT_BC1_RGBA_UNORM_BLOCK:
	case VK_FORMAT_BC1_RGBA_SRGB_BLOCK:
		return VK_FORMAT_BC1_RGBA_UNORM_BLOCK;

	// BC2(128 bit), Block size 16 bytes, 16 texels / block
	case VK_FORMAT_BC2_UNORM_BLOCK:
	case VK_FORMAT_BC2_SRGB_BLOCK:
		return VK_FORMAT_BC2_UNORM_BLOCK;

	// BC3(128 bit), Block size 16 bytes, 16 texels / block
	case VK_FORMAT_BC3_UNORM_BLOCK:
	case VK_FORMAT_BC3_SRGB_BLOCK:
		return VK_FORMAT_BC3_UNORM_BLOCK;

	// BC4(64 bit), Block size 8 bytes, 16 texels / block
	case VK_FORMAT_BC4_UNORM_BLOCK:
	case VK_FORMAT_BC4_SNORM_BLOCK:
		return VK_FORMAT_BC4_UNORM_BLOCK;

	// BC5(128 bit), Block size 16 bytes, 16 texels / block
	case VK_FORMAT_BC5_UNORM_BLOCK:
	case VK_FORMAT_BC5_SNORM_BLOCK:
		return VK_FORMAT_BC5_UNORM_BLOCK;

	// BC6H(128 bit), Block size 16 bytes, 16 texels / block
	case VK_FORMAT_BC6H_UFLOAT_BLOCK:
	case VK_FORMAT_BC6H_SFLOAT_BLOCK:
		return VK_FORMAT_BC6H_UFLOAT_BLOCK;

	// BC7(128 bit), Block size 16 bytes, 16 texels / block
	case VK_FORMAT_BC7_UNORM_BLOCK:
	case VK_FORMAT_BC7_SRGB_BLOCK:
		return VK_FORMAT_BC7_UNORM_BLOCK;

	// ETC2_RGB(64 bit), Block size 8 bytes, 16 texels / block
	case VK_FORMAT_ETC2_R8G8B8_UNORM_BLOCK:
	case VK_FORMAT_ETC2_R8G8B8_SRGB_BLOCK:
		return VK_FORMAT_ETC2_R8G8B8_UNORM_BLOCK;

	// ETC2_RGBA(64 bit), Block size 8 bytes, 16 texels / block
	case VK_FORMAT_ETC2_R8G8B8A1_UNORM_BLOCK:
	case VK_FORMAT_ETC2_R8G8B8A1_SRGB_BLOCK:
		return VK_FORMAT_ETC2_R8G8B8A1_UNORM_BLOCK;

	// ETC2_EAC_RGBA(64 bit), Block size 8 bytes, 16 texels / block
	case VK_FORMAT_ETC2_R8G8B8A8_UNORM_BLOCK:
	case VK_FORMAT_ETC2_R8G8B8A8_SRGB_BLOCK:
		return VK_FORMAT_ETC2_R8G8B8A8_UNORM_BLOCK;

	// EAC_R(64 bit), Block size 8 bytes, 16 texels / block
	case VK_FORMAT_EAC_R11_UNORM_BLOCK:
	case VK_FORMAT_EAC_R11_SNORM_BLOCK:
		return VK_FORMAT_EAC_R11_UNORM_BLOCK;

	// EAC_RG(128 bit), Block size 16 bytes, 16 texels / block
	case VK_FORMAT_EAC_R11G11_UNORM_BLOCK:
	case VK_FORMAT_EAC_R11G11_SNORM_BLOCK:
		return VK_FORMAT_EAC_R11G11_UNORM_BLOCK;

	// ASTC_4x4(128 bit), Block size 16 bytes, 16 texels / block
	case VK_FORMAT_ASTC_4x4_UNORM_BLOCK:
	case VK_FORMAT_ASTC_4x4_SRGB_BLOCK:
		return VK_FORMAT_ASTC_4x4_UNORM_BLOCK;

	// ASTC_5x4(128 bit), Block size 16 bytes, 20 texels / block
	case VK_FORMAT_ASTC_5x4_UNORM_BLOCK:
	case VK_FORMAT_ASTC_5x4_SRGB_BLOCK:
		return VK_FORMAT_ASTC_5x4_UNORM_BLOCK;

	// ASTC_5x5(128 bit), Block size 16 bytes, 25 texels / block
	case VK_FORMAT_ASTC_5x5_UNORM_BLOCK:
	case VK_FORMAT_ASTC_5x5_SRGB_BLOCK:
		return VK_FORMAT_ASTC_5x5_UNORM_BLOCK;

	// ASTC_6x5(128 bit), Block size 16 bytes, 30 texels / block
	case VK_FORMAT_ASTC_6x5_UNORM_BLOCK:
	case VK_FORMAT_ASTC_6x5_SRGB_BLOCK:
		return VK_FORMAT_ASTC_6x5_UNORM_BLOCK;

	// ASTC_6x6(128 bit), Block size 16 bytes, 36 texels / block
	case VK_FORMAT_ASTC_6x6_UNORM_BLOCK:
	case VK_FORMAT_ASTC_6x6_SRGB_BLOCK:
		return VK_FORMAT_ASTC_6x6_UNORM_BLOCK;

	// ASTC_8x5(128 bit), Block size 16 bytes, 40 texels / block
	case VK_FORMAT_ASTC_8x5_UNORM_BLOCK:
	case VK_FORMAT_ASTC_8x5_SRGB_BLOCK:
		return VK_FORMAT_ASTC_8x5_UNORM_BLOCK;

	// ASTC_8x6(128 bit), Block size 16 bytes, 48 texels / block
	case VK_FORMAT_ASTC_8x6_UNORM_BLOCK:
	case VK_FORMAT_ASTC_8x6_SRGB_BLOCK:
		return VK_FORMAT_ASTC_8x6_UNORM_BLOCK;

	// ASTC_8x8(128 bit), Block size 16 bytes, 64 texels / block
	case VK_FORMAT_ASTC_8x8_UNORM_BLOCK:
	case VK_FORMAT_ASTC_8x8_SRGB_BLOCK:
		return VK_FORMAT_ASTC_8x8_UNORM_BLOCK;

	// ASTC_10x5(128 bit), Block size 16 bytes, 50 texels / block
	case VK_FORMAT_ASTC_10x5_UNORM_BLOCK:
	case VK_FORMAT_ASTC_10x5_SRGB_BLOCK:
		return VK_FORMAT_ASTC_10x5_UNORM_BLOCK;

	// ASTC_10x6(128 bit), Block size 16 bytes, 60 texels / block
	case VK_FORMAT_ASTC_10x6_UNORM_BLOCK:
	case VK_FORMAT_ASTC_10x6_SRGB_BLOCK:
		return VK_FORMAT_ASTC_10x6_UNORM_BLOCK;

	// ASTC_10x8(128 bit), Block size 16 bytes, 80 texels / block
	case VK_FORMAT_ASTC_10x8_UNORM_BLOCK:
	case VK_FORMAT_ASTC_10x8_SRGB_BLOCK:
		return VK_FORMAT_ASTC_10x8_UNORM_BLOCK;

	// ASTC_10x10(128 bit), Block size 16 bytes, 100 texels / block
	case VK_FORMAT_ASTC_10x10_UNORM_BLOCK:
	case VK_FORMAT_ASTC_10x10_SRGB_BLOCK:
		return VK_FORMAT_ASTC_10x10_UNORM_BLOCK;

	// ASTC_12x10(128 bit), Block size 16 bytes, 120 texels / block
	case VK_FORMAT_ASTC_12x10_UNORM_BLOCK:
	case VK_FORMAT_ASTC_12x10_SRGB_BLOCK:
		return VK_FORMAT_ASTC_12x10_UNORM_BLOCK;

	// ASTC_12x12(128 bit), Block size 16 bytes, 144 texels / block
	case VK_FORMAT_ASTC_12x12_UNORM_BLOCK:
	case VK_FORMAT_ASTC_12x12_SRGB_BLOCK:
		return VK_FORMAT_ASTC_12x12_UNORM_BLOCK;

	// All other formats are only compatible with themselves
	default:
		return format;
	}
}

bool Format::isCompatible(const Format& other) const
{
	return compatibleFormat() == other.compatibleFormat();
}

int Format::blockWidth() const
{
	switch(format)
	{
	case VK_FORMAT_BC1_RGB_UNORM_BLOCK:
	case VK_FORMAT_BC1_RGB_SRGB_BLOCK:
	case VK_FORMAT_BC1_RGBA_UNORM_BLOCK:
	case VK_FORMAT_BC1_RGBA_SRGB_BLOCK:
	case VK_FORMAT_BC2_UNORM_BLOCK:
	case VK_FORMAT_BC2_SRGB_BLOCK:
	case VK_FORMAT_BC3_UNORM_BLOCK:
	case VK_FORMAT_BC3_SRGB_BLOCK:
	case VK_FORMAT_BC4_UNORM_BLOCK:
	case VK_FORMAT_BC4_SNORM_BLOCK:
	case VK_FORMAT_BC5_UNORM_BLOCK:
	case VK_FORMAT_BC5_SNORM_BLOCK:
	case VK_FORMAT_BC6H_UFLOAT_BLOCK:
	case VK_FORMAT_BC6H_SFLOAT_BLOCK:
	case VK_FORMAT_BC7_UNORM_BLOCK:
	case VK_FORMAT_BC7_SRGB_BLOCK:
	case VK_FORMAT_ETC2_R8G8B8_UNORM_BLOCK:
	case VK_FORMAT_ETC2_R8G8B8_SRGB_BLOCK:
	case VK_FORMAT_ETC2_R8G8B8A1_UNORM_BLOCK:
	case VK_FORMAT_ETC2_R8G8B8A1_SRGB_BLOCK:
	case VK_FORMAT_ETC2_R8G8B8A8_UNORM_BLOCK:
	case VK_FORMAT_ETC2_R8G8B8A8_SRGB_BLOCK:
	case VK_FORMAT_EAC_R11_UNORM_BLOCK:
	case VK_FORMAT_EAC_R11_SNORM_BLOCK:
	case VK_FORMAT_EAC_R11G11_UNORM_BLOCK:
	case VK_FORMAT_EAC_R11G11_SNORM_BLOCK:
	case VK_FORMAT_ASTC_4x4_UNORM_BLOCK:
	case VK_FORMAT_ASTC_4x4_SRGB_BLOCK:
		return 4;
	case VK_FORMAT_ASTC_5x4_UNORM_BLOCK:
	case VK_FORMAT_ASTC_5x4_SRGB_BLOCK:
	case VK_FORMAT_ASTC_5x5_UNORM_BLOCK:
	case VK_FORMAT_ASTC_5x5_SRGB_BLOCK:
		return 5;
	case VK_FORMAT_ASTC_6x5_UNORM_BLOCK:
	case VK_FORMAT_ASTC_6x5_SRGB_BLOCK:
	case VK_FORMAT_ASTC_6x6_UNORM_BLOCK:
	case VK_FORMAT_ASTC_6x6_SRGB_BLOCK:
		return 6;
	case VK_FORMAT_ASTC_8x5_UNORM_BLOCK:
	case VK_FORMAT_ASTC_8x5_SRGB_BLOCK:
	case VK_FORMAT_ASTC_8x6_UNORM_BLOCK:
	case VK_FORMAT_ASTC_8x6_SRGB_BLOCK:
	case VK_FORMAT_ASTC_8x8_UNORM_BLOCK:
	case VK_FORMAT_ASTC_8x8_SRGB_BLOCK:
		return 8;
	case VK_FORMAT_ASTC_10x5_UNORM_BLOCK:
	case VK_FORMAT_ASTC_10x5_SRGB_BLOCK:
	case VK_FORMAT_ASTC_10x6_UNORM_BLOCK:
	case VK_FORMAT_ASTC_10x6_SRGB_BLOCK:
	case VK_FORMAT_ASTC_10x8_UNORM_BLOCK:
	case VK_FORMAT_ASTC_10x8_SRGB_BLOCK:
	case VK_FORMAT_ASTC_10x10_UNORM_BLOCK:
	case VK_FORMAT_ASTC_10x10_SRGB_BLOCK:
		return 10;
	case VK_FORMAT_ASTC_12x10_UNORM_BLOCK:
	case VK_FORMAT_ASTC_12x10_SRGB_BLOCK:
	case VK_FORMAT_ASTC_12x12_UNORM_BLOCK:
	case VK_FORMAT_ASTC_12x12_SRGB_BLOCK:
		return 12;
	default:
		return 1;
	}
}

int Format::blockHeight() const
{
	switch(format)
	{
	case VK_FORMAT_BC1_RGB_UNORM_BLOCK:
	case VK_FORMAT_BC1_RGB_SRGB_BLOCK:
	case VK_FORMAT_BC1_RGBA_UNORM_BLOCK:
	case VK_FORMAT_BC1_RGBA_SRGB_BLOCK:
	case VK_FORMAT_BC2_UNORM_BLOCK:
	case VK_FORMAT_BC2_SRGB_BLOCK:
	case VK_FORMAT_BC3_UNORM_BLOCK:
	case VK_FORMAT_BC3_SRGB_BLOCK:
	case VK_FORMAT_BC4_UNORM_BLOCK:
	case VK_FORMAT_BC4_SNORM_BLOCK:
	case VK_FORMAT_BC5_UNORM_BLOCK:
	case VK_FORMAT_BC5_SNORM_BLOCK:
	case VK_FORMAT_BC6H_UFLOAT_BLOCK:
	case VK_FORMAT_BC6H_SFLOAT_BLOCK:
	case VK_FORMAT_BC7_UNORM_BLOCK:
	case VK_FORMAT_BC7_SRGB_BLOCK:
	case VK_FORMAT_ETC2_R8G8B8_UNORM_BLOCK:
	case VK_FORMAT_ETC2_R8G8B8_SRGB_BLOCK:
	case VK_FORMAT_ETC2_R8G8B8A1_UNORM_BLOCK:
	case VK_FORMAT_ETC2_R8G8B8A1_SRGB_BLOCK:
	case VK_FORMAT_ETC2_R8G8B8A8_UNORM_BLOCK:
	case VK_FORMAT_ETC2_R8G8B8A8_SRGB_BLOCK:
	case VK_FORMAT_EAC_R11_UNORM_BLOCK:
	case VK_FORMAT_EAC_R11_SNORM_BLOCK:
	case VK_FORMAT_EAC_R11G11_UNORM_BLOCK:
	case VK_FORMAT_EAC_R11G11_SNORM_BLOCK:
	case VK_FORMAT_ASTC_4x4_UNORM_BLOCK:
	case VK_FORMAT_ASTC_4x4_SRGB_BLOCK:
	case VK_FORMAT_ASTC_5x4_UNORM_BLOCK:
	case VK_FORMAT_ASTC_5x4_SRGB_BLOCK:
		return 4;
	case VK_FORMAT_ASTC_5x5_UNORM_BLOCK:
	case VK_FORMAT_ASTC_5x5_SRGB_BLOCK:
	case VK_FORMAT_ASTC_6x5_UNORM_BLOCK:
	case VK_FORMAT_ASTC_6x5_SRGB_BLOCK:
	case VK_FORMAT_ASTC_8x5_UNORM_BLOCK:
	case VK_FORMAT_ASTC_8x5_SRGB_BLOCK:
	case VK_FORMAT_ASTC_10x5_UNORM_BLOCK:
	case VK_FORMAT_ASTC_10x5_SRGB_BLOCK:
		return 5;
	case VK_FORMAT_ASTC_6x6_UNORM_BLOCK:
	case VK_FORMAT_ASTC_6x6_SRGB_BLOCK:
	case VK_FORMAT_ASTC_8x6_UNORM_BLOCK:
	case VK_FORMAT_ASTC_8x6_SRGB_BLOCK:
	case VK_FORMAT_ASTC_10x6_UNORM_BLOCK:
	case VK_FORMAT_ASTC_10x6_SRGB_BLOCK:
		return 6;
	case VK_FORMAT_ASTC_8x8_UNORM_BLOCK:
	case VK_FORMAT_ASTC_8x8_SRGB_BLOCK:
	case VK_FORMAT_ASTC_10x8_UNORM_BLOCK:
	case VK_FORMAT_ASTC_10x8_SRGB_BLOCK:
		return 8;
	case VK_FORMAT_ASTC_10x10_UNORM_BLOCK:
	case VK_FORMAT_ASTC_10x10_SRGB_BLOCK:
	case VK_FORMAT_ASTC_12x10_UNORM_BLOCK:
	case VK_FORMAT_ASTC_12x10_SRGB_BLOCK:
		return 10;
	case VK_FORMAT_ASTC_12x12_UNORM_BLOCK:
	case VK_FORMAT_ASTC_12x12_SRGB_BLOCK:
		return 12;
	default:
		return 1;
	}
}

int Format::bytesPerBlock() const
{
	switch(format)
	{
	case VK_FORMAT_BC1_RGB_UNORM_BLOCK:
	case VK_FORMAT_BC1_RGB_SRGB_BLOCK:
	case VK_FORMAT_BC1_RGBA_UNORM_BLOCK:
	case VK_FORMAT_BC1_RGBA_SRGB_BLOCK:
	case VK_FORMAT_BC4_UNORM_BLOCK:
	case VK_FORMAT_BC4_SNORM_BLOCK:
	case VK_FORMAT_ETC2_R8G8B8_UNORM_BLOCK:
	case VK_FORMAT_ETC2_R8G8B8_SRGB_BLOCK:
	case VK_FORMAT_ETC2_R8G8B8A1_UNORM_BLOCK:
	case VK_FORMAT_ETC2_R8G8B8A1_SRGB_BLOCK:
	case VK_FORMAT_EAC_R11_UNORM_BLOCK:
	case VK_FORMAT_EAC_R11_SNORM_BLOCK:
		return 8;
	case VK_FORMAT_BC2_UNORM_BLOCK:
	case VK_FORMAT_BC2_SRGB_BLOCK:
	case VK_FORMAT_BC3_UNORM_BLOCK:
	case VK_FORMAT_BC3_SRGB_BLOCK:
	case VK_FORMAT_BC5_UNORM_BLOCK:
	case VK_FORMAT_BC5_SNORM_BLOCK:
	case VK_FORMAT_BC6H_UFLOAT_BLOCK:
	case VK_FORMAT_BC6H_SFLOAT_BLOCK:
	case VK_FORMAT_BC7_UNORM_BLOCK:
	case VK_FORMAT_BC7_SRGB_BLOCK:
	case VK_FORMAT_ETC2_R8G8B8A8_UNORM_BLOCK:
	case VK_FORMAT_ETC2_R8G8B8A8_SRGB_BLOCK:
	case VK_FORMAT_EAC_R11G11_UNORM_BLOCK:
	case VK_FORMAT_EAC_R11G11_SNORM_BLOCK:
	case VK_FORMAT_ASTC_4x4_UNORM_BLOCK:
	case VK_FORMAT_ASTC_4x4_SRGB_BLOCK:
	case VK_FORMAT_ASTC_5x4_UNORM_BLOCK:
	case VK_FORMAT_ASTC_5x4_SRGB_BLOCK:
	case VK_FORMAT_ASTC_5x5_UNORM_BLOCK:
	case VK_FORMAT_ASTC_5x5_SRGB_BLOCK:
	case VK_FORMAT_ASTC_6x5_UNORM_BLOCK:
	case VK_FORMAT_ASTC_6x5_SRGB_BLOCK:
	case VK_FORMAT_ASTC_6x6_UNORM_BLOCK:
	case VK_FORMAT_ASTC_6x6_SRGB_BLOCK:
	case VK_FORMAT_ASTC_8x5_UNORM_BLOCK:
	case VK_FORMAT_ASTC_8x5_SRGB_BLOCK:
	case VK_FORMAT_ASTC_8x6_UNORM_BLOCK:
	case VK_FORMAT_ASTC_8x6_SRGB_BLOCK:
	case VK_FORMAT_ASTC_8x8_UNORM_BLOCK:
	case VK_FORMAT_ASTC_8x8_SRGB_BLOCK:
	case VK_FORMAT_ASTC_10x5_UNORM_BLOCK:
	case VK_FORMAT_ASTC_10x5_SRGB_BLOCK:
	case VK_FORMAT_ASTC_10x6_UNORM_BLOCK:
	case VK_FORMAT_ASTC_10x6_SRGB_BLOCK:
	case VK_FORMAT_ASTC_10x8_UNORM_BLOCK:
	case VK_FORMAT_ASTC_10x8_SRGB_BLOCK:
	case VK_FORMAT_ASTC_10x10_UNORM_BLOCK:
	case VK_FORMAT_ASTC_10x10_SRGB_BLOCK:
	case VK_FORMAT_ASTC_12x10_UNORM_BLOCK:
	case VK_FORMAT_ASTC_12x10_SRGB_BLOCK:
	case VK_FORMAT_ASTC_12x12_UNORM_BLOCK:
	case VK_FORMAT_ASTC_12x12_SRGB_BLOCK:
		return 16;
	default:
		return bytes();
	}
}

int Format::componentCount() const
{
	switch(format)
	{
	case VK_FORMAT_R8_UNORM:
	case VK_FORMAT_R8_SNORM:
	case VK_FORMAT_R8_USCALED:
	case VK_FORMAT_R8_SSCALED:
	case VK_FORMAT_R8_UINT:
	case VK_FORMAT_R8_SINT:
	case VK_FORMAT_R8_SRGB:
	case VK_FORMAT_R16_UNORM:
	case VK_FORMAT_R16_SNORM:
	case VK_FORMAT_R16_USCALED:
	case VK_FORMAT_R16_SSCALED:
	case VK_FORMAT_R16_UINT:
	case VK_FORMAT_R16_SINT:
	case VK_FORMAT_R16_SFLOAT:
	case VK_FORMAT_R32_UINT:
	case VK_FORMAT_R32_SINT:
	case VK_FORMAT_R32_SFLOAT:
	case VK_FORMAT_R64_UINT:
	case VK_FORMAT_R64_SINT:
	case VK_FORMAT_R64_SFLOAT:
	case VK_FORMAT_D16_UNORM:
	case VK_FORMAT_X8_D24_UNORM_PACK32:
	case VK_FORMAT_D32_SFLOAT:
	case VK_FORMAT_S8_UINT:
	case VK_FORMAT_D16_UNORM_S8_UINT:
	case VK_FORMAT_D24_UNORM_S8_UINT:
	case VK_FORMAT_D32_SFLOAT_S8_UINT:
	case VK_FORMAT_EAC_R11_UNORM_BLOCK:
	case VK_FORMAT_EAC_R11_SNORM_BLOCK:
		return 1;
	case VK_FORMAT_R4G4_UNORM_PACK8:
	case VK_FORMAT_R8G8_UNORM:
	case VK_FORMAT_R8G8_SNORM:
	case VK_FORMAT_R8G8_USCALED:
	case VK_FORMAT_R8G8_SSCALED:
	case VK_FORMAT_R8G8_UINT:
	case VK_FORMAT_R8G8_SINT:
	case VK_FORMAT_R8G8_SRGB:
	case VK_FORMAT_R16G16_UNORM:
	case VK_FORMAT_R16G16_SNORM:
	case VK_FORMAT_R16G16_USCALED:
	case VK_FORMAT_R16G16_SSCALED:
	case VK_FORMAT_R16G16_UINT:
	case VK_FORMAT_R16G16_SINT:
	case VK_FORMAT_R16G16_SFLOAT:
	case VK_FORMAT_R32G32_UINT:
	case VK_FORMAT_R32G32_SINT:
	case VK_FORMAT_R32G32_SFLOAT:
	case VK_FORMAT_R64G64_UINT:
	case VK_FORMAT_R64G64_SINT:
	case VK_FORMAT_R64G64_SFLOAT:
	case VK_FORMAT_EAC_R11G11_UNORM_BLOCK:
	case VK_FORMAT_EAC_R11G11_SNORM_BLOCK:
		return 2;
	case VK_FORMAT_R5G6B5_UNORM_PACK16:
	case VK_FORMAT_B5G6R5_UNORM_PACK16:
	case VK_FORMAT_R8G8B8_UNORM:
	case VK_FORMAT_R8G8B8_SNORM:
	case VK_FORMAT_R8G8B8_USCALED:
	case VK_FORMAT_R8G8B8_SSCALED:
	case VK_FORMAT_R8G8B8_UINT:
	case VK_FORMAT_R8G8B8_SINT:
	case VK_FORMAT_R8G8B8_SRGB:
	case VK_FORMAT_B8G8R8_UNORM:
	case VK_FORMAT_B8G8R8_SNORM:
	case VK_FORMAT_B8G8R8_USCALED:
	case VK_FORMAT_B8G8R8_SSCALED:
	case VK_FORMAT_B8G8R8_UINT:
	case VK_FORMAT_B8G8R8_SINT:
	case VK_FORMAT_B8G8R8_SRGB:
	case VK_FORMAT_R16G16B16_UNORM:
	case VK_FORMAT_R16G16B16_SNORM:
	case VK_FORMAT_R16G16B16_USCALED:
	case VK_FORMAT_R16G16B16_SSCALED:
	case VK_FORMAT_R16G16B16_UINT:
	case VK_FORMAT_R16G16B16_SINT:
	case VK_FORMAT_R16G16B16_SFLOAT:
	case VK_FORMAT_R32G32B32_UINT:
	case VK_FORMAT_R32G32B32_SINT:
	case VK_FORMAT_R32G32B32_SFLOAT:
	case VK_FORMAT_R64G64B64_UINT:
	case VK_FORMAT_R64G64B64_SINT:
	case VK_FORMAT_R64G64B64_SFLOAT:
	case VK_FORMAT_B10G11R11_UFLOAT_PACK32:
	case VK_FORMAT_E5B9G9R9_UFLOAT_PACK32:
	case VK_FORMAT_G8_B8_R8_3PLANE_420_UNORM:
	case VK_FORMAT_G8_B8R8_2PLANE_420_UNORM:
	case VK_FORMAT_ETC2_R8G8B8_UNORM_BLOCK:
	case VK_FORMAT_ETC2_R8G8B8_SRGB_BLOCK:
		return 3;
	case VK_FORMAT_R4G4B4A4_UNORM_PACK16:
	case VK_FORMAT_B4G4R4A4_UNORM_PACK16:
	case VK_FORMAT_R5G5B5A1_UNORM_PACK16:
	case VK_FORMAT_B5G5R5A1_UNORM_PACK16:
	case VK_FORMAT_A1R5G5B5_UNORM_PACK16:
	case VK_FORMAT_R8G8B8A8_UNORM:
	case VK_FORMAT_R8G8B8A8_SNORM:
	case VK_FORMAT_R8G8B8A8_USCALED:
	case VK_FORMAT_R8G8B8A8_SSCALED:
	case VK_FORMAT_R8G8B8A8_UINT:
	case VK_FORMAT_R8G8B8A8_SINT:
	case VK_FORMAT_R8G8B8A8_SRGB:
	case VK_FORMAT_B8G8R8A8_UNORM:
	case VK_FORMAT_B8G8R8A8_SNORM:
	case VK_FORMAT_B8G8R8A8_USCALED:
	case VK_FORMAT_B8G8R8A8_SSCALED:
	case VK_FORMAT_B8G8R8A8_UINT:
	case VK_FORMAT_B8G8R8A8_SINT:
	case VK_FORMAT_B8G8R8A8_SRGB:
	case VK_FORMAT_A8B8G8R8_UNORM_PACK32:
	case VK_FORMAT_A8B8G8R8_SNORM_PACK32:
	case VK_FORMAT_A8B8G8R8_USCALED_PACK32:
	case VK_FORMAT_A8B8G8R8_SSCALED_PACK32:
	case VK_FORMAT_A8B8G8R8_UINT_PACK32:
	case VK_FORMAT_A8B8G8R8_SINT_PACK32:
	case VK_FORMAT_A8B8G8R8_SRGB_PACK32:
	case VK_FORMAT_A2R10G10B10_UNORM_PACK32:
	case VK_FORMAT_A2R10G10B10_SNORM_PACK32:
	case VK_FORMAT_A2R10G10B10_USCALED_PACK32:
	case VK_FORMAT_A2R10G10B10_SSCALED_PACK32:
	case VK_FORMAT_A2R10G10B10_UINT_PACK32:
	case VK_FORMAT_A2R10G10B10_SINT_PACK32:
	case VK_FORMAT_A2B10G10R10_UNORM_PACK32:
	case VK_FORMAT_A2B10G10R10_SNORM_PACK32:
	case VK_FORMAT_A2B10G10R10_USCALED_PACK32:
	case VK_FORMAT_A2B10G10R10_SSCALED_PACK32:
	case VK_FORMAT_A2B10G10R10_UINT_PACK32:
	case VK_FORMAT_A2B10G10R10_SINT_PACK32:
	case VK_FORMAT_R16G16B16A16_UNORM:
	case VK_FORMAT_R16G16B16A16_SNORM:
	case VK_FORMAT_R16G16B16A16_USCALED:
	case VK_FORMAT_R16G16B16A16_SSCALED:
	case VK_FORMAT_R16G16B16A16_UINT:
	case VK_FORMAT_R16G16B16A16_SINT:
	case VK_FORMAT_R16G16B16A16_SFLOAT:
	case VK_FORMAT_R32G32B32A32_UINT:
	case VK_FORMAT_R32G32B32A32_SINT:
	case VK_FORMAT_R32G32B32A32_SFLOAT:
	case VK_FORMAT_R64G64B64A64_UINT:
	case VK_FORMAT_R64G64B64A64_SINT:
	case VK_FORMAT_R64G64B64A64_SFLOAT:
	case VK_FORMAT_ETC2_R8G8B8A1_UNORM_BLOCK:
	case VK_FORMAT_ETC2_R8G8B8A1_SRGB_BLOCK:
	case VK_FORMAT_ETC2_R8G8B8A8_UNORM_BLOCK:
	case VK_FORMAT_ETC2_R8G8B8A8_SRGB_BLOCK:
		return 4;
	default:
		UNIMPLEMENTED("Format: %d", int(format));
	}

	return 1;
}

bool Format::isUnsignedComponent(int component) const
{
	switch(format)
	{
	case VK_FORMAT_UNDEFINED:
	case VK_FORMAT_R4G4_UNORM_PACK8:
	case VK_FORMAT_R4G4B4A4_UNORM_PACK16:
	case VK_FORMAT_B4G4R4A4_UNORM_PACK16:
	case VK_FORMAT_R5G6B5_UNORM_PACK16:
	case VK_FORMAT_B5G6R5_UNORM_PACK16:
	case VK_FORMAT_R5G5B5A1_UNORM_PACK16:
	case VK_FORMAT_B5G5R5A1_UNORM_PACK16:
	case VK_FORMAT_A1R5G5B5_UNORM_PACK16:
	case VK_FORMAT_R8_UNORM:
	case VK_FORMAT_R8_UINT:
	case VK_FORMAT_R8_SRGB:
	case VK_FORMAT_R8G8_UNORM:
	case VK_FORMAT_R8G8_USCALED:
	case VK_FORMAT_R8G8_UINT:
	case VK_FORMAT_R8G8_SRGB:
	case VK_FORMAT_R8G8B8_UNORM:
	case VK_FORMAT_R8G8B8_USCALED:
	case VK_FORMAT_R8G8B8_UINT:
	case VK_FORMAT_R8G8B8_SRGB:
	case VK_FORMAT_B8G8R8_UNORM:
	case VK_FORMAT_B8G8R8_USCALED:
	case VK_FORMAT_B8G8R8_UINT:
	case VK_FORMAT_B8G8R8_SRGB:
	case VK_FORMAT_R8G8B8A8_UNORM:
	case VK_FORMAT_R8G8B8A8_USCALED:
	case VK_FORMAT_R8G8B8A8_UINT:
	case VK_FORMAT_R8G8B8A8_SRGB:
	case VK_FORMAT_B8G8R8A8_UNORM:
	case VK_FORMAT_B8G8R8A8_USCALED:
	case VK_FORMAT_B8G8R8A8_UINT:
	case VK_FORMAT_B8G8R8A8_SRGB:
	case VK_FORMAT_A8B8G8R8_UNORM_PACK32:
	case VK_FORMAT_A8B8G8R8_USCALED_PACK32:
	case VK_FORMAT_A8B8G8R8_UINT_PACK32:
	case VK_FORMAT_A8B8G8R8_SRGB_PACK32:
	case VK_FORMAT_A2R10G10B10_UNORM_PACK32:
	case VK_FORMAT_A2R10G10B10_USCALED_PACK32:
	case VK_FORMAT_A2R10G10B10_UINT_PACK32:
	case VK_FORMAT_A2B10G10R10_UNORM_PACK32:
	case VK_FORMAT_A2B10G10R10_USCALED_PACK32:
	case VK_FORMAT_A2B10G10R10_UINT_PACK32:
	case VK_FORMAT_R16_UNORM:
	case VK_FORMAT_R16_USCALED:
	case VK_FORMAT_R16_UINT:
	case VK_FORMAT_R16G16_UNORM:
	case VK_FORMAT_R16G16_USCALED:
	case VK_FORMAT_R16G16_UINT:
	case VK_FORMAT_R16G16B16_UNORM:
	case VK_FORMAT_R16G16B16_USCALED:
	case VK_FORMAT_R16G16B16_UINT:
	case VK_FORMAT_R16G16B16A16_UNORM:
	case VK_FORMAT_R16G16B16A16_USCALED:
	case VK_FORMAT_R16G16B16A16_UINT:
	case VK_FORMAT_R32_UINT:
	case VK_FORMAT_R32G32_UINT:
	case VK_FORMAT_R32G32B32_UINT:
	case VK_FORMAT_R32G32B32A32_UINT:
	case VK_FORMAT_R64_UINT:
	case VK_FORMAT_R64G64_UINT:
	case VK_FORMAT_R64G64B64_UINT:
	case VK_FORMAT_R64G64B64A64_UINT:
	case VK_FORMAT_B10G11R11_UFLOAT_PACK32:
	case VK_FORMAT_E5B9G9R9_UFLOAT_PACK32:
	case VK_FORMAT_D16_UNORM:
	case VK_FORMAT_X8_D24_UNORM_PACK32:
	case VK_FORMAT_S8_UINT:
	case VK_FORMAT_D16_UNORM_S8_UINT:
	case VK_FORMAT_D24_UNORM_S8_UINT:
	case VK_FORMAT_D32_SFLOAT:
	case VK_FORMAT_D32_SFLOAT_S8_UINT:
	case VK_FORMAT_EAC_R11_UNORM_BLOCK:
	case VK_FORMAT_EAC_R11G11_UNORM_BLOCK:
	case VK_FORMAT_ETC2_R8G8B8_UNORM_BLOCK:
	case VK_FORMAT_ETC2_R8G8B8A1_UNORM_BLOCK:
	case VK_FORMAT_ETC2_R8G8B8A8_UNORM_BLOCK:
		return true;
	case VK_FORMAT_R8G8B8A8_SNORM:
	case VK_FORMAT_R8G8B8A8_SSCALED:
	case VK_FORMAT_R8G8B8A8_SINT:
	case VK_FORMAT_B8G8R8A8_SNORM:
	case VK_FORMAT_B8G8R8A8_SSCALED:
	case VK_FORMAT_B8G8R8A8_SINT:
	case VK_FORMAT_A8B8G8R8_SNORM_PACK32:
	case VK_FORMAT_A8B8G8R8_SSCALED_PACK32:
	case VK_FORMAT_A8B8G8R8_SINT_PACK32:
	case VK_FORMAT_A2R10G10B10_SNORM_PACK32:
	case VK_FORMAT_A2R10G10B10_SSCALED_PACK32:
	case VK_FORMAT_A2R10G10B10_SINT_PACK32:
	case VK_FORMAT_A2B10G10R10_SNORM_PACK32:
	case VK_FORMAT_A2B10G10R10_SSCALED_PACK32:
	case VK_FORMAT_A2B10G10R10_SINT_PACK32:
	case VK_FORMAT_R16G16B16A16_SNORM:
	case VK_FORMAT_R16G16B16A16_SSCALED:
	case VK_FORMAT_R16G16B16A16_SINT:
	case VK_FORMAT_R16G16B16A16_SFLOAT:
	case VK_FORMAT_R32G32B32A32_SINT:
	case VK_FORMAT_R32G32B32A32_SFLOAT:
	case VK_FORMAT_R64G64B64A64_SINT:
	case VK_FORMAT_R64G64B64A64_SFLOAT:
	case VK_FORMAT_EAC_R11_SNORM_BLOCK:
	case VK_FORMAT_EAC_R11G11_SNORM_BLOCK:
	case VK_FORMAT_ETC2_R8G8B8_SRGB_BLOCK:
	case VK_FORMAT_ETC2_R8G8B8A1_SRGB_BLOCK:
	case VK_FORMAT_ETC2_R8G8B8A8_SRGB_BLOCK:
	// YCbCr formats treated as signed because VK_SAMPLER_YCBCR_MODEL_CONVERSION_YCBCR_IDENTITY
	// expects chroma components to be in range [-0.5, 0.5]
	case VK_FORMAT_G8_B8_R8_3PLANE_420_UNORM:
	case VK_FORMAT_G8_B8R8_2PLANE_420_UNORM:
		return false;
	case VK_FORMAT_R8_SNORM:
	case VK_FORMAT_R8_USCALED:
	case VK_FORMAT_R8_SSCALED:
	case VK_FORMAT_R8_SINT:
	case VK_FORMAT_R16_SNORM:
	case VK_FORMAT_R16_SSCALED:
	case VK_FORMAT_R16_SINT:
	case VK_FORMAT_R16_SFLOAT:
	case VK_FORMAT_R32_SINT:
	case VK_FORMAT_R32_SFLOAT:
	case VK_FORMAT_R64_SINT:
	case VK_FORMAT_R64_SFLOAT:
		return component >= 1;
	case VK_FORMAT_R8G8_SNORM:
	case VK_FORMAT_R8G8_SSCALED:
	case VK_FORMAT_R8G8_SINT:
	case VK_FORMAT_R16G16_SNORM:
	case VK_FORMAT_R16G16_SSCALED:
	case VK_FORMAT_R16G16_SINT:
	case VK_FORMAT_R16G16_SFLOAT:
	case VK_FORMAT_R32G32_SINT:
	case VK_FORMAT_R32G32_SFLOAT:
	case VK_FORMAT_R64G64_SINT:
	case VK_FORMAT_R64G64_SFLOAT:
		return component >= 2;
	case VK_FORMAT_R8G8B8_SNORM:
	case VK_FORMAT_R8G8B8_SSCALED:
	case VK_FORMAT_R8G8B8_SINT:
	case VK_FORMAT_B8G8R8_SNORM:
	case VK_FORMAT_B8G8R8_SSCALED:
	case VK_FORMAT_B8G8R8_SINT:
	case VK_FORMAT_R16G16B16_SNORM:
	case VK_FORMAT_R16G16B16_SSCALED:
	case VK_FORMAT_R16G16B16_SINT:
	case VK_FORMAT_R16G16B16_SFLOAT:
	case VK_FORMAT_R32G32B32_SINT:
	case VK_FORMAT_R32G32B32_SFLOAT:
	case VK_FORMAT_R64G64B64_SINT:
	case VK_FORMAT_R64G64B64_SFLOAT:
		return component >= 3;
	default:
		UNIMPLEMENTED("Format: %d", int(format));
	}

	return false;
}

int Format::bytes() const
{
	switch(format)
	{
	case VK_FORMAT_UNDEFINED:
		return 0;
	case VK_FORMAT_R4G4_UNORM_PACK8:
		return 1;
	case VK_FORMAT_R4G4B4A4_UNORM_PACK16:
	case VK_FORMAT_B4G4R4A4_UNORM_PACK16:
	case VK_FORMAT_R5G6B5_UNORM_PACK16:
	case VK_FORMAT_B5G6R5_UNORM_PACK16:
	case VK_FORMAT_R5G5B5A1_UNORM_PACK16:
	case VK_FORMAT_B5G5R5A1_UNORM_PACK16:
	case VK_FORMAT_A1R5G5B5_UNORM_PACK16:
		return 2;
	case VK_FORMAT_R8_UNORM:
	case VK_FORMAT_R8_SNORM:
	case VK_FORMAT_R8_USCALED:
	case VK_FORMAT_R8_SSCALED:
	case VK_FORMAT_R8_UINT:
	case VK_FORMAT_R8_SINT:
	case VK_FORMAT_R8_SRGB:
		return 1;
	case VK_FORMAT_R8G8_UNORM:
	case VK_FORMAT_R8G8_SNORM:
	case VK_FORMAT_R8G8_USCALED:
	case VK_FORMAT_R8G8_SSCALED:
	case VK_FORMAT_R8G8_UINT:
	case VK_FORMAT_R8G8_SINT:
	case VK_FORMAT_R8G8_SRGB:
		return 2;
	case VK_FORMAT_R8G8B8_UNORM:
	case VK_FORMAT_R8G8B8_SNORM:
	case VK_FORMAT_R8G8B8_USCALED:
	case VK_FORMAT_R8G8B8_SSCALED:
	case VK_FORMAT_R8G8B8_UINT:
	case VK_FORMAT_R8G8B8_SINT:
	case VK_FORMAT_R8G8B8_SRGB:
	case VK_FORMAT_B8G8R8_UNORM:
	case VK_FORMAT_B8G8R8_SNORM:
	case VK_FORMAT_B8G8R8_USCALED:
	case VK_FORMAT_B8G8R8_SSCALED:
	case VK_FORMAT_B8G8R8_UINT:
	case VK_FORMAT_B8G8R8_SINT:
	case VK_FORMAT_B8G8R8_SRGB:
		return 3;
	case VK_FORMAT_R8G8B8A8_UNORM:
	case VK_FORMAT_R8G8B8A8_SNORM:
	case VK_FORMAT_R8G8B8A8_USCALED:
	case VK_FORMAT_R8G8B8A8_SSCALED:
	case VK_FORMAT_R8G8B8A8_UINT:
	case VK_FORMAT_R8G8B8A8_SINT:
	case VK_FORMAT_R8G8B8A8_SRGB:
	case VK_FORMAT_B8G8R8A8_UNORM:
	case VK_FORMAT_B8G8R8A8_SNORM:
	case VK_FORMAT_B8G8R8A8_USCALED:
	case VK_FORMAT_B8G8R8A8_SSCALED:
	case VK_FORMAT_B8G8R8A8_UINT:
	case VK_FORMAT_B8G8R8A8_SINT:
	case VK_FORMAT_B8G8R8A8_SRGB:
	case VK_FORMAT_A8B8G8R8_UNORM_PACK32:
	case VK_FORMAT_A8B8G8R8_SNORM_PACK32:
	case VK_FORMAT_A8B8G8R8_USCALED_PACK32:
	case VK_FORMAT_A8B8G8R8_SSCALED_PACK32:
	case VK_FORMAT_A8B8G8R8_UINT_PACK32:
	case VK_FORMAT_A8B8G8R8_SINT_PACK32:
	case VK_FORMAT_A8B8G8R8_SRGB_PACK32:
	case VK_FORMAT_A2R10G10B10_UNORM_PACK32:
	case VK_FORMAT_A2R10G10B10_SNORM_PACK32:
	case VK_FORMAT_A2R10G10B10_USCALED_PACK32:
	case VK_FORMAT_A2R10G10B10_SSCALED_PACK32:
	case VK_FORMAT_A2R10G10B10_UINT_PACK32:
	case VK_FORMAT_A2R10G10B10_SINT_PACK32:
	case VK_FORMAT_A2B10G10R10_UNORM_PACK32:
	case VK_FORMAT_A2B10G10R10_SNORM_PACK32:
	case VK_FORMAT_A2B10G10R10_USCALED_PACK32:
	case VK_FORMAT_A2B10G10R10_SSCALED_PACK32:
	case VK_FORMAT_A2B10G10R10_UINT_PACK32:
	case VK_FORMAT_A2B10G10R10_SINT_PACK32:
		return 4;
	case VK_FORMAT_R16_UNORM:
	case VK_FORMAT_R16_SNORM:
	case VK_FORMAT_R16_USCALED:
	case VK_FORMAT_R16_SSCALED:
	case VK_FORMAT_R16_UINT:
	case VK_FORMAT_R16_SINT:
	case VK_FORMAT_R16_SFLOAT:
		return 2;
	case VK_FORMAT_R16G16_UNORM:
	case VK_FORMAT_R16G16_SNORM:
	case VK_FORMAT_R16G16_USCALED:
	case VK_FORMAT_R16G16_SSCALED:
	case VK_FORMAT_R16G16_UINT:
	case VK_FORMAT_R16G16_SINT:
	case VK_FORMAT_R16G16_SFLOAT:
		return 4;
	case VK_FORMAT_R16G16B16_UNORM:
	case VK_FORMAT_R16G16B16_SNORM:
	case VK_FORMAT_R16G16B16_USCALED:
	case VK_FORMAT_R16G16B16_SSCALED:
	case VK_FORMAT_R16G16B16_UINT:
	case VK_FORMAT_R16G16B16_SINT:
	case VK_FORMAT_R16G16B16_SFLOAT:
		return 6;
	case VK_FORMAT_R16G16B16A16_UNORM:
	case VK_FORMAT_R16G16B16A16_SNORM:
	case VK_FORMAT_R16G16B16A16_USCALED:
	case VK_FORMAT_R16G16B16A16_SSCALED:
	case VK_FORMAT_R16G16B16A16_UINT:
	case VK_FORMAT_R16G16B16A16_SINT:
	case VK_FORMAT_R16G16B16A16_SFLOAT:
		return 8;
	case VK_FORMAT_R32_UINT:
	case VK_FORMAT_R32_SINT:
	case VK_FORMAT_R32_SFLOAT:
		return 4;
	case VK_FORMAT_R32G32_UINT:
	case VK_FORMAT_R32G32_SINT:
	case VK_FORMAT_R32G32_SFLOAT:
		return 8;
	case VK_FORMAT_R32G32B32_UINT:
	case VK_FORMAT_R32G32B32_SINT:
	case VK_FORMAT_R32G32B32_SFLOAT:
		return 12;
	case VK_FORMAT_R32G32B32A32_UINT:
	case VK_FORMAT_R32G32B32A32_SINT:
	case VK_FORMAT_R32G32B32A32_SFLOAT:
		return 16;
	case VK_FORMAT_R64_UINT:
	case VK_FORMAT_R64_SINT:
	case VK_FORMAT_R64_SFLOAT:
		return 8;
	case VK_FORMAT_R64G64_UINT:
	case VK_FORMAT_R64G64_SINT:
	case VK_FORMAT_R64G64_SFLOAT:
		return 16;
	case VK_FORMAT_R64G64B64_UINT:
	case VK_FORMAT_R64G64B64_SINT:
	case VK_FORMAT_R64G64B64_SFLOAT:
		return 24;
	case VK_FORMAT_R64G64B64A64_UINT:
	case VK_FORMAT_R64G64B64A64_SINT:
	case VK_FORMAT_R64G64B64A64_SFLOAT:
		return 32;
	case VK_FORMAT_B10G11R11_UFLOAT_PACK32:   return 4;
	case VK_FORMAT_E5B9G9R9_UFLOAT_PACK32:    return 4;
	case VK_FORMAT_D16_UNORM:                 return 2;
	case VK_FORMAT_X8_D24_UNORM_PACK32:       return 4;
	case VK_FORMAT_D32_SFLOAT:                return 4;
	case VK_FORMAT_S8_UINT:                   return 1;
	case VK_FORMAT_D16_UNORM_S8_UINT:         return 2; // Separate depth and stencil planes  // TODO: ASSERT to ensure this is only called per-aspect?
	case VK_FORMAT_D24_UNORM_S8_UINT:         return 4; // Combined depth and stencil planes  // TODO: ASSERT to ensure this is only called per-aspect?
	case VK_FORMAT_D32_SFLOAT_S8_UINT:        return 4; // Separate depth and stencil planes  // TODO: ASSERT to ensure this is only called per-aspect?
	// Note: Compressed formats don't return bytes per pixel,
	//       since these would be fractional. The returned value
	//       is bytes per pixel for 1 column, so 2 for 64 bit 4x4
	//       blocks and 4 for 128 bit 4x4 blocks.
	case VK_FORMAT_BC1_RGB_UNORM_BLOCK:       return 2;
	case VK_FORMAT_BC1_RGB_SRGB_BLOCK:        return 2;
	case VK_FORMAT_BC1_RGBA_UNORM_BLOCK:      return 2;
	case VK_FORMAT_BC1_RGBA_SRGB_BLOCK:       return 2;
	case VK_FORMAT_BC2_UNORM_BLOCK:           return 4;
	case VK_FORMAT_BC2_SRGB_BLOCK:            return 4;
	case VK_FORMAT_BC3_UNORM_BLOCK:           return 4;
	case VK_FORMAT_BC3_SRGB_BLOCK:            return 4;
	case VK_FORMAT_BC4_UNORM_BLOCK:           return 2;
	case VK_FORMAT_BC4_SNORM_BLOCK:           return 2;
	case VK_FORMAT_BC5_UNORM_BLOCK:           return 4;
	case VK_FORMAT_BC5_SNORM_BLOCK:           return 4;
	case VK_FORMAT_BC6H_UFLOAT_BLOCK:         return 4;
	case VK_FORMAT_BC6H_SFLOAT_BLOCK:         return 4;
	case VK_FORMAT_BC7_UNORM_BLOCK:           return 4;
	case VK_FORMAT_BC7_SRGB_BLOCK:            return 4;
	case VK_FORMAT_ETC2_R8G8B8_UNORM_BLOCK:   return 2;
	case VK_FORMAT_ETC2_R8G8B8_SRGB_BLOCK:    return 2;
	case VK_FORMAT_ETC2_R8G8B8A1_UNORM_BLOCK: return 2;
	case VK_FORMAT_ETC2_R8G8B8A1_SRGB_BLOCK:  return 2;
	case VK_FORMAT_ETC2_R8G8B8A8_UNORM_BLOCK: return 4;
	case VK_FORMAT_ETC2_R8G8B8A8_SRGB_BLOCK:  return 4;
	case VK_FORMAT_EAC_R11_UNORM_BLOCK:       return 2;
	case VK_FORMAT_EAC_R11_SNORM_BLOCK:       return 2;
	case VK_FORMAT_EAC_R11G11_UNORM_BLOCK:    return 4;
	case VK_FORMAT_EAC_R11G11_SNORM_BLOCK:    return 4;
	case VK_FORMAT_ASTC_4x4_UNORM_BLOCK:      return 4;
	case VK_FORMAT_ASTC_4x4_SRGB_BLOCK:       return 4;
	case VK_FORMAT_ASTC_5x4_UNORM_BLOCK:
	case VK_FORMAT_ASTC_5x4_SRGB_BLOCK:
	case VK_FORMAT_ASTC_5x5_UNORM_BLOCK:
	case VK_FORMAT_ASTC_5x5_SRGB_BLOCK:
	case VK_FORMAT_ASTC_6x5_UNORM_BLOCK:
	case VK_FORMAT_ASTC_6x5_SRGB_BLOCK:
	case VK_FORMAT_ASTC_6x6_UNORM_BLOCK:
	case VK_FORMAT_ASTC_6x6_SRGB_BLOCK:
	case VK_FORMAT_ASTC_8x5_UNORM_BLOCK:
	case VK_FORMAT_ASTC_8x5_SRGB_BLOCK:
	case VK_FORMAT_ASTC_8x6_UNORM_BLOCK:
	case VK_FORMAT_ASTC_8x6_SRGB_BLOCK:
	case VK_FORMAT_ASTC_8x8_UNORM_BLOCK:
	case VK_FORMAT_ASTC_8x8_SRGB_BLOCK:
	case VK_FORMAT_ASTC_10x5_UNORM_BLOCK:
	case VK_FORMAT_ASTC_10x5_SRGB_BLOCK:
	case VK_FORMAT_ASTC_10x6_UNORM_BLOCK:
	case VK_FORMAT_ASTC_10x6_SRGB_BLOCK:
	case VK_FORMAT_ASTC_10x8_UNORM_BLOCK:
	case VK_FORMAT_ASTC_10x8_SRGB_BLOCK:
	case VK_FORMAT_ASTC_10x10_UNORM_BLOCK:
	case VK_FORMAT_ASTC_10x10_SRGB_BLOCK:
	case VK_FORMAT_ASTC_12x10_UNORM_BLOCK:
	case VK_FORMAT_ASTC_12x10_SRGB_BLOCK:
	case VK_FORMAT_ASTC_12x12_UNORM_BLOCK:
	case VK_FORMAT_ASTC_12x12_SRGB_BLOCK:
		UNSUPPORTED("format: %d", int(format));
		return 0;
	case VK_FORMAT_G8_B8_R8_3PLANE_420_UNORM:
	case VK_FORMAT_G8_B8R8_2PLANE_420_UNORM:
		// TODO: ASSERT to ensure this is only called per-aspect?
		return 1;  // Y plane only
	default:
		UNIMPLEMENTED("Format: %d", int(format));
	}

	return 0;
}

int Format::pitchB(int width, int border, bool target) const
{
	width += 2 * border;

	// Render targets require 2x2 quads
	if(target || isDepth() || isStencil())
	{
		width = sw::align<2>(width);
	}

	switch(format)
	{
	case VK_FORMAT_EAC_R11_UNORM_BLOCK:
	case VK_FORMAT_EAC_R11_SNORM_BLOCK:
	case VK_FORMAT_ETC2_R8G8B8_UNORM_BLOCK:
	case VK_FORMAT_ETC2_R8G8B8_SRGB_BLOCK:
	case VK_FORMAT_ETC2_R8G8B8A1_UNORM_BLOCK:
	case VK_FORMAT_ETC2_R8G8B8A1_SRGB_BLOCK:
		return 8 * ((width + 3) / 4);    // 64 bit per 4x4 block, computed per 4 rows
	case VK_FORMAT_EAC_R11G11_UNORM_BLOCK:
	case VK_FORMAT_EAC_R11G11_SNORM_BLOCK:
	case VK_FORMAT_ETC2_R8G8B8A8_UNORM_BLOCK:
	case VK_FORMAT_ETC2_R8G8B8A8_SRGB_BLOCK:
	case VK_FORMAT_ASTC_4x4_UNORM_BLOCK:
	case VK_FORMAT_ASTC_4x4_SRGB_BLOCK:
		return 16 * ((width + 3) / 4);    // 128 bit per 4x4 block, computed per 4 rows
	case VK_FORMAT_ASTC_5x4_UNORM_BLOCK:
	case VK_FORMAT_ASTC_5x4_SRGB_BLOCK:
	case VK_FORMAT_ASTC_5x5_UNORM_BLOCK:
	case VK_FORMAT_ASTC_5x5_SRGB_BLOCK:
		return 16 * ((width + 4) / 5);
	case VK_FORMAT_ASTC_6x5_UNORM_BLOCK:
	case VK_FORMAT_ASTC_6x5_SRGB_BLOCK:
	case VK_FORMAT_ASTC_6x6_UNORM_BLOCK:
	case VK_FORMAT_ASTC_6x6_SRGB_BLOCK:
		return 16 * ((width + 5) / 6);
	case VK_FORMAT_ASTC_8x5_UNORM_BLOCK:
	case VK_FORMAT_ASTC_8x5_SRGB_BLOCK:
	case VK_FORMAT_ASTC_8x6_UNORM_BLOCK:
	case VK_FORMAT_ASTC_8x6_SRGB_BLOCK:
	case VK_FORMAT_ASTC_8x8_UNORM_BLOCK:
	case VK_FORMAT_ASTC_8x8_SRGB_BLOCK:
		return 16 * ((width + 7) / 8);
	case VK_FORMAT_ASTC_10x5_UNORM_BLOCK:
	case VK_FORMAT_ASTC_10x5_SRGB_BLOCK:
	case VK_FORMAT_ASTC_10x6_UNORM_BLOCK:
	case VK_FORMAT_ASTC_10x6_SRGB_BLOCK:
	case VK_FORMAT_ASTC_10x8_UNORM_BLOCK:
	case VK_FORMAT_ASTC_10x8_SRGB_BLOCK:
	case VK_FORMAT_ASTC_10x10_UNORM_BLOCK:
	case VK_FORMAT_ASTC_10x10_SRGB_BLOCK:
		return 16 * ((width + 9) / 10);
	case VK_FORMAT_ASTC_12x10_UNORM_BLOCK:
	case VK_FORMAT_ASTC_12x10_SRGB_BLOCK:
	case VK_FORMAT_ASTC_12x12_UNORM_BLOCK:
	case VK_FORMAT_ASTC_12x12_SRGB_BLOCK:
		return 16 * ((width + 11) / 12);
	case VK_FORMAT_G8_B8_R8_3PLANE_420_UNORM:
	case VK_FORMAT_G8_B8R8_2PLANE_420_UNORM:
		return sw::align<16>(width);  // Y plane only  // TODO: ASSERT to ensure this is only called per-aspect?
	default:
		return bytes() * width;
	}
}

int Format::sliceBUnpadded(int width, int height, int border, bool target) const
{
	height += 2 * border;

	// Render targets require 2x2 quads
	if(target || isDepth() || isStencil())
	{
		height = sw::align<2>(height);
	}

	switch(format)
	{
	case VK_FORMAT_EAC_R11_UNORM_BLOCK:
	case VK_FORMAT_EAC_R11_SNORM_BLOCK:
	case VK_FORMAT_EAC_R11G11_UNORM_BLOCK:
	case VK_FORMAT_EAC_R11G11_SNORM_BLOCK:
	case VK_FORMAT_ETC2_R8G8B8_UNORM_BLOCK:
	case VK_FORMAT_ETC2_R8G8B8_SRGB_BLOCK:
	case VK_FORMAT_ETC2_R8G8B8A1_UNORM_BLOCK:
	case VK_FORMAT_ETC2_R8G8B8A1_SRGB_BLOCK:
	case VK_FORMAT_ETC2_R8G8B8A8_UNORM_BLOCK:
	case VK_FORMAT_ETC2_R8G8B8A8_SRGB_BLOCK:
	case VK_FORMAT_ASTC_4x4_UNORM_BLOCK:
	case VK_FORMAT_ASTC_4x4_SRGB_BLOCK:
	case VK_FORMAT_ASTC_5x4_UNORM_BLOCK:
	case VK_FORMAT_ASTC_5x4_SRGB_BLOCK:
		return pitchB(width, border, target) * ((height + 3) / 4);   // Pitch computed per 4 rows
	case VK_FORMAT_ASTC_5x5_UNORM_BLOCK:
	case VK_FORMAT_ASTC_5x5_SRGB_BLOCK:
	case VK_FORMAT_ASTC_6x5_UNORM_BLOCK:
	case VK_FORMAT_ASTC_6x5_SRGB_BLOCK:
	case VK_FORMAT_ASTC_8x5_UNORM_BLOCK:
	case VK_FORMAT_ASTC_8x5_SRGB_BLOCK:
	case VK_FORMAT_ASTC_10x5_UNORM_BLOCK:
	case VK_FORMAT_ASTC_10x5_SRGB_BLOCK:
		return pitchB(width, border, target) * ((height + 4) / 5);   // Pitch computed per 5 rows
	case VK_FORMAT_ASTC_6x6_UNORM_BLOCK:
	case VK_FORMAT_ASTC_6x6_SRGB_BLOCK:
	case VK_FORMAT_ASTC_8x6_UNORM_BLOCK:
	case VK_FORMAT_ASTC_8x6_SRGB_BLOCK:
	case VK_FORMAT_ASTC_10x6_UNORM_BLOCK:
	case VK_FORMAT_ASTC_10x6_SRGB_BLOCK:
		return pitchB(width, border, target) * ((height + 5) / 6);   // Pitch computed per 6 rows
	case VK_FORMAT_ASTC_8x8_UNORM_BLOCK:
	case VK_FORMAT_ASTC_8x8_SRGB_BLOCK:
	case VK_FORMAT_ASTC_10x8_UNORM_BLOCK:
	case VK_FORMAT_ASTC_10x8_SRGB_BLOCK:
		return pitchB(width, border, target) * ((height + 7) / 8);   // Pitch computed per 8 rows
	case VK_FORMAT_ASTC_10x10_UNORM_BLOCK:
	case VK_FORMAT_ASTC_10x10_SRGB_BLOCK:
	case VK_FORMAT_ASTC_12x10_UNORM_BLOCK:
	case VK_FORMAT_ASTC_12x10_SRGB_BLOCK:
		return pitchB(width, border, target) * ((height + 9) / 10);   // Pitch computed per 10 rows
	case VK_FORMAT_ASTC_12x12_UNORM_BLOCK:
	case VK_FORMAT_ASTC_12x12_SRGB_BLOCK:
		return pitchB(width, border, target) * ((height + 11) / 12);   // Pitch computed per 12 rows
	case VK_FORMAT_G8_B8_R8_3PLANE_420_UNORM:
	case VK_FORMAT_G8_B8R8_2PLANE_420_UNORM:
		// "Images in this format must be defined with a width and height that is a multiple of two."
		return pitchB(width, border, target) * (height + height / 2);  // U and V planes are 1/4 size of Y plane.
	default:
		return pitchB(width, border, target) * height;   // Pitch computed per row
	}
}

int Format::sliceB(int width, int height, int border, bool target) const
{
	return sw::align<16>(sliceBUnpadded(width, height, border, target) + 15);
}

sw::float4 Format::getScale() const
{
	switch(format)
	{
	case VK_FORMAT_R4G4_UNORM_PACK8:
	case VK_FORMAT_R4G4B4A4_UNORM_PACK16:
	case VK_FORMAT_B4G4R4A4_UNORM_PACK16:
		return sw::vector(0xF, 0xF, 0xF, 0xF);
	case VK_FORMAT_R8_UNORM:
	case VK_FORMAT_R8G8_UNORM:
	case VK_FORMAT_R8G8B8_UNORM:
	case VK_FORMAT_B8G8R8_UNORM:
	case VK_FORMAT_A8B8G8R8_UNORM_PACK32:
	case VK_FORMAT_R8G8B8A8_UNORM:
	case VK_FORMAT_B8G8R8A8_UNORM:
	case VK_FORMAT_R8_SRGB:
	case VK_FORMAT_R8G8_SRGB:
	case VK_FORMAT_R8G8B8_SRGB:
	case VK_FORMAT_B8G8R8_SRGB:
	case VK_FORMAT_A8B8G8R8_SRGB_PACK32:
	case VK_FORMAT_R8G8B8A8_SRGB:
	case VK_FORMAT_B8G8R8A8_SRGB:
		return sw::vector(0xFF, 0xFF, 0xFF, 0xFF);
	case VK_FORMAT_R8_SNORM:
	case VK_FORMAT_R8G8_SNORM:
	case VK_FORMAT_R8G8B8_SNORM:
	case VK_FORMAT_B8G8R8_SNORM:
	case VK_FORMAT_A8B8G8R8_SNORM_PACK32:
	case VK_FORMAT_R8G8B8A8_SNORM:
	case VK_FORMAT_B8G8R8A8_SNORM:
		return sw::vector(0x7F, 0x7F, 0x7F, 0x7F);
	case VK_FORMAT_R16_UNORM:
	case VK_FORMAT_R16G16_UNORM:
	case VK_FORMAT_R16G16B16_UNORM:
	case VK_FORMAT_R16G16B16A16_UNORM:
		return sw::vector(0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF);
	case VK_FORMAT_R16_SNORM:
	case VK_FORMAT_R16G16_SNORM:
	case VK_FORMAT_R16G16B16_SNORM:
	case VK_FORMAT_R16G16B16A16_SNORM:
		return sw::vector(0x7FFF, 0x7FFF, 0x7FFF, 0x7FFF);
	case VK_FORMAT_R8_SINT:
	case VK_FORMAT_R8_UINT:
	case VK_FORMAT_R8G8_SINT:
	case VK_FORMAT_R8G8_UINT:
	case VK_FORMAT_R8G8B8_SINT:
	case VK_FORMAT_R8G8B8_UINT:
	case VK_FORMAT_B8G8R8_SINT:
	case VK_FORMAT_B8G8R8_UINT:
	case VK_FORMAT_R8G8B8A8_SINT:
	case VK_FORMAT_R8G8B8A8_UINT:
	case VK_FORMAT_A8B8G8R8_SINT_PACK32:
	case VK_FORMAT_A8B8G8R8_UINT_PACK32:
	case VK_FORMAT_B8G8R8A8_SINT:
	case VK_FORMAT_B8G8R8A8_UINT:
	case VK_FORMAT_R8_USCALED:
	case VK_FORMAT_R8G8_USCALED:
	case VK_FORMAT_R8G8B8_USCALED:
	case VK_FORMAT_B8G8R8_USCALED:
	case VK_FORMAT_R8G8B8A8_USCALED:
	case VK_FORMAT_B8G8R8A8_USCALED:
	case VK_FORMAT_A8B8G8R8_USCALED_PACK32:
	case VK_FORMAT_R8_SSCALED:
	case VK_FORMAT_R8G8_SSCALED:
	case VK_FORMAT_R8G8B8_SSCALED:
	case VK_FORMAT_B8G8R8_SSCALED:
	case VK_FORMAT_R8G8B8A8_SSCALED:
	case VK_FORMAT_B8G8R8A8_SSCALED:
	case VK_FORMAT_A8B8G8R8_SSCALED_PACK32:
	case VK_FORMAT_R16_SINT:
	case VK_FORMAT_R16_UINT:
	case VK_FORMAT_R16G16_SINT:
	case VK_FORMAT_R16G16_UINT:
	case VK_FORMAT_R16G16B16A16_SINT:
	case VK_FORMAT_R16G16B16A16_UINT:
	case VK_FORMAT_R16_SSCALED:
	case VK_FORMAT_R16G16_SSCALED:
	case VK_FORMAT_R16G16B16_SSCALED:
	case VK_FORMAT_R16G16B16A16_SSCALED:
	case VK_FORMAT_R16_USCALED:
	case VK_FORMAT_R16G16_USCALED:
	case VK_FORMAT_R16G16B16_USCALED:
	case VK_FORMAT_R16G16B16A16_USCALED:
	case VK_FORMAT_R32_SINT:
	case VK_FORMAT_R32_UINT:
	case VK_FORMAT_R32G32_SINT:
	case VK_FORMAT_R32G32_UINT:
	case VK_FORMAT_R32G32B32_SINT:
	case VK_FORMAT_R32G32B32_UINT:
	case VK_FORMAT_R32G32B32A32_SINT:
	case VK_FORMAT_R32G32B32A32_UINT:
	case VK_FORMAT_R32G32B32A32_SFLOAT:
	case VK_FORMAT_R32G32B32_SFLOAT:
	case VK_FORMAT_R32G32_SFLOAT:
	case VK_FORMAT_R32_SFLOAT:
	case VK_FORMAT_R16G16B16A16_SFLOAT:
	case VK_FORMAT_R16G16B16_SFLOAT:
	case VK_FORMAT_R16G16_SFLOAT:
	case VK_FORMAT_R16_SFLOAT:
	case VK_FORMAT_B10G11R11_UFLOAT_PACK32:
	case VK_FORMAT_E5B9G9R9_UFLOAT_PACK32:
	case VK_FORMAT_A2R10G10B10_USCALED_PACK32:
	case VK_FORMAT_A2R10G10B10_SSCALED_PACK32:
	case VK_FORMAT_A2R10G10B10_UINT_PACK32:
	case VK_FORMAT_A2R10G10B10_SINT_PACK32:
	case VK_FORMAT_A2B10G10R10_USCALED_PACK32:
	case VK_FORMAT_A2B10G10R10_SSCALED_PACK32:
	case VK_FORMAT_A2B10G10R10_UINT_PACK32:
	case VK_FORMAT_A2B10G10R10_SINT_PACK32:
		return sw::vector(1.0f, 1.0f, 1.0f, 1.0f);
	case VK_FORMAT_R5G5B5A1_UNORM_PACK16:
	case VK_FORMAT_B5G5R5A1_UNORM_PACK16:
	case VK_FORMAT_A1R5G5B5_UNORM_PACK16:
		return sw::vector(0x1F, 0x1F, 0x1F, 0x01);
	case VK_FORMAT_R5G6B5_UNORM_PACK16:
	case VK_FORMAT_B5G6R5_UNORM_PACK16:
		return sw::vector(0x1F, 0x3F, 0x1F, 1.0f);
	case VK_FORMAT_A2R10G10B10_UNORM_PACK32:
	case VK_FORMAT_A2B10G10R10_UNORM_PACK32:
		return sw::vector(0x3FF, 0x3FF, 0x3FF, 0x03);
	case VK_FORMAT_A2R10G10B10_SNORM_PACK32:
	case VK_FORMAT_A2B10G10R10_SNORM_PACK32:
		return sw::vector(0x1FF, 0x1FF, 0x1FF, 0x01);
	case VK_FORMAT_D16_UNORM:
		return sw::vector(0xFFFF, 0.0f, 0.0f, 0.0f);
	case VK_FORMAT_D24_UNORM_S8_UINT:
	case VK_FORMAT_X8_D24_UNORM_PACK32:
		return sw::vector(0xFFFFFF, 0.0f, 0.0f, 0.0f);
	case VK_FORMAT_D32_SFLOAT:
	case VK_FORMAT_D32_SFLOAT_S8_UINT:
	case VK_FORMAT_S8_UINT:
		return sw::vector(1.0f, 1.0f, 1.0f, 1.0f);
	default:
		UNSUPPORTED("format %d", int(format));
		break;
	}

	return sw::vector(1.0f, 1.0f, 1.0f, 1.0f);
}

bool Format::has16bitTextureFormat() const
{
	switch(format)
	{
	case VK_FORMAT_B4G4R4A4_UNORM_PACK16:
	case VK_FORMAT_R5G6B5_UNORM_PACK16:
	case VK_FORMAT_A1R5G5B5_UNORM_PACK16:
		return true;
	case VK_FORMAT_R8_SNORM:
	case VK_FORMAT_R8G8_SNORM:
	case VK_FORMAT_R8G8B8A8_SNORM:
	case VK_FORMAT_R8_SINT:
	case VK_FORMAT_R8_UINT:
	case VK_FORMAT_R8G8_SINT:
	case VK_FORMAT_R8G8_UINT:
	case VK_FORMAT_R8G8B8A8_SINT:
	case VK_FORMAT_R8G8B8A8_UINT:
	case VK_FORMAT_R32_SINT:
	case VK_FORMAT_R32_UINT:
	case VK_FORMAT_R32G32_SINT:
	case VK_FORMAT_R32G32_UINT:
	case VK_FORMAT_R32G32B32A32_SINT:
	case VK_FORMAT_R32G32B32A32_UINT:
	case VK_FORMAT_R8G8_UNORM:
	case VK_FORMAT_R8G8_SRGB:
	case VK_FORMAT_B8G8R8_UNORM:
	case VK_FORMAT_B8G8R8A8_UNORM:
	case VK_FORMAT_R8G8B8A8_UNORM:
	case VK_FORMAT_B8G8R8_SRGB:
	case VK_FORMAT_R8G8B8A8_SRGB:
	case VK_FORMAT_B8G8R8A8_SRGB:
	case VK_FORMAT_R32_SFLOAT:
	case VK_FORMAT_R32G32_SFLOAT:
	case VK_FORMAT_R32G32B32A32_SFLOAT:
	case VK_FORMAT_R8_UNORM:
	case VK_FORMAT_R16_UNORM:
	case VK_FORMAT_R8_SRGB:
	case VK_FORMAT_R16_SNORM:
	case VK_FORMAT_R16G16_UNORM:
	case VK_FORMAT_R16G16_SNORM:
	case VK_FORMAT_R16G16B16A16_UNORM:
	case VK_FORMAT_R16_SINT:
	case VK_FORMAT_R16_UINT:
	case VK_FORMAT_R16_SFLOAT:
	case VK_FORMAT_R16G16_SINT:
	case VK_FORMAT_R16G16_UINT:
	case VK_FORMAT_R16G16_SFLOAT:
	case VK_FORMAT_R16G16B16A16_SINT:
	case VK_FORMAT_R16G16B16A16_UINT:
	case VK_FORMAT_R16G16B16A16_SFLOAT:
	case VK_FORMAT_G8_B8_R8_3PLANE_420_UNORM:
	case VK_FORMAT_G8_B8R8_2PLANE_420_UNORM:
	case VK_FORMAT_A2B10G10R10_UNORM_PACK32:
	case VK_FORMAT_A2B10G10R10_UINT_PACK32:
	case VK_FORMAT_E5B9G9R9_UFLOAT_PACK32:
	case VK_FORMAT_B10G11R11_UFLOAT_PACK32:
	case VK_FORMAT_D16_UNORM:
		return false;
	default:
		UNIMPLEMENTED("Format: %d", int(format));
	}

	return false;
}

bool Format::has8bitTextureComponents() const
{
	switch(format)
	{
	case VK_FORMAT_R8G8_UNORM:
	case VK_FORMAT_R8G8_SRGB:
	case VK_FORMAT_B8G8R8_UNORM:
	case VK_FORMAT_B8G8R8A8_UNORM:
	case VK_FORMAT_R8G8B8A8_UNORM:
	case VK_FORMAT_B8G8R8_SRGB:
	case VK_FORMAT_R8G8B8A8_SRGB:
	case VK_FORMAT_B8G8R8A8_SRGB:
	case VK_FORMAT_R8_UNORM:
	case VK_FORMAT_R8_SRGB:
	case VK_FORMAT_R8_SNORM:
	case VK_FORMAT_R8G8_SNORM:
	case VK_FORMAT_R8G8B8A8_SNORM:
	case VK_FORMAT_R8_SINT:
	case VK_FORMAT_R8_UINT:
	case VK_FORMAT_R8G8_SINT:
	case VK_FORMAT_R8G8_UINT:
	case VK_FORMAT_R8G8B8A8_SINT:
	case VK_FORMAT_R8G8B8A8_UINT:
		return true;
	case VK_FORMAT_A1R5G5B5_UNORM_PACK16:
	case VK_FORMAT_B4G4R4A4_UNORM_PACK16:
	case VK_FORMAT_R5G6B5_UNORM_PACK16:
	case VK_FORMAT_R32_SFLOAT:
	case VK_FORMAT_R32G32_SFLOAT:
	case VK_FORMAT_R32G32B32A32_SFLOAT:
	case VK_FORMAT_R16_UNORM:
	case VK_FORMAT_R16_SNORM:
	case VK_FORMAT_R16G16_UNORM:
	case VK_FORMAT_R16G16_SNORM:
	case VK_FORMAT_R16G16B16A16_UNORM:
	case VK_FORMAT_R32_SINT:
	case VK_FORMAT_R32_UINT:
	case VK_FORMAT_R32G32_SINT:
	case VK_FORMAT_R32G32_UINT:
	case VK_FORMAT_R32G32B32A32_SINT:
	case VK_FORMAT_R32G32B32A32_UINT:
	case VK_FORMAT_R16_SINT:
	case VK_FORMAT_R16_UINT:
	case VK_FORMAT_R16_SFLOAT:
	case VK_FORMAT_R16G16_SINT:
	case VK_FORMAT_R16G16_UINT:
	case VK_FORMAT_R16G16_SFLOAT:
	case VK_FORMAT_R16G16B16A16_SINT:
	case VK_FORMAT_R16G16B16A16_UINT:
	case VK_FORMAT_R16G16B16A16_SFLOAT:
	case VK_FORMAT_G8_B8_R8_3PLANE_420_UNORM:
	case VK_FORMAT_G8_B8R8_2PLANE_420_UNORM:
	case VK_FORMAT_A2B10G10R10_UNORM_PACK32:
	case VK_FORMAT_A2B10G10R10_UINT_PACK32:
	case VK_FORMAT_E5B9G9R9_UFLOAT_PACK32:
	case VK_FORMAT_B10G11R11_UFLOAT_PACK32:
	case VK_FORMAT_D16_UNORM:
		return false;
	default:
		UNIMPLEMENTED("Format: %d", int(format));
	}

	return false;
}

bool Format::has16bitTextureComponents() const
{
	switch(format)
	{
	case VK_FORMAT_A1R5G5B5_UNORM_PACK16:
	case VK_FORMAT_B4G4R4A4_UNORM_PACK16:
	case VK_FORMAT_R5G6B5_UNORM_PACK16:
	case VK_FORMAT_R8_SNORM:
	case VK_FORMAT_R8G8_SNORM:
	case VK_FORMAT_R8G8B8A8_SNORM:
	case VK_FORMAT_R8_SINT:
	case VK_FORMAT_R8_UINT:
	case VK_FORMAT_R8G8_SINT:
	case VK_FORMAT_R8G8_UINT:
	case VK_FORMAT_R8G8B8A8_SINT:
	case VK_FORMAT_R8G8B8A8_UINT:
	case VK_FORMAT_R32_SINT:
	case VK_FORMAT_R32_UINT:
	case VK_FORMAT_R32G32_SINT:
	case VK_FORMAT_R32G32_UINT:
	case VK_FORMAT_R32G32B32A32_SINT:
	case VK_FORMAT_R32G32B32A32_UINT:
	case VK_FORMAT_R8G8_UNORM:
	case VK_FORMAT_R8G8_SRGB:
	case VK_FORMAT_B8G8R8_UNORM:
	case VK_FORMAT_B8G8R8A8_UNORM:
	case VK_FORMAT_R8G8B8A8_UNORM:
	case VK_FORMAT_B8G8R8_SRGB:
	case VK_FORMAT_R8G8B8A8_SRGB:
	case VK_FORMAT_B8G8R8A8_SRGB:
	case VK_FORMAT_R32_SFLOAT:
	case VK_FORMAT_R32G32_SFLOAT:
	case VK_FORMAT_R32G32B32A32_SFLOAT:
	case VK_FORMAT_R8_UNORM:
	case VK_FORMAT_R8_SRGB:
	case VK_FORMAT_G8_B8_R8_3PLANE_420_UNORM:
	case VK_FORMAT_G8_B8R8_2PLANE_420_UNORM:
	case VK_FORMAT_A2B10G10R10_UNORM_PACK32:
	case VK_FORMAT_A2B10G10R10_UINT_PACK32:
	case VK_FORMAT_E5B9G9R9_UFLOAT_PACK32:
	case VK_FORMAT_B10G11R11_UFLOAT_PACK32:
		return false;
	case VK_FORMAT_R16_UNORM:
	case VK_FORMAT_R16_SNORM:
	case VK_FORMAT_R16G16_UNORM:
	case VK_FORMAT_R16G16_SNORM:
	case VK_FORMAT_R16G16B16A16_UNORM:
	case VK_FORMAT_R16_SINT:
	case VK_FORMAT_R16_UINT:
	case VK_FORMAT_R16_SFLOAT:
	case VK_FORMAT_R16G16_SINT:
	case VK_FORMAT_R16G16_UINT:
	case VK_FORMAT_R16G16_SFLOAT:
	case VK_FORMAT_R16G16B16A16_SINT:
	case VK_FORMAT_R16G16B16A16_UINT:
	case VK_FORMAT_R16G16B16A16_SFLOAT:
	case VK_FORMAT_D16_UNORM:
		return true;
	default:
		UNIMPLEMENTED("Format: %d", int(format));
	}

	return false;
}

bool Format::has32bitIntegerTextureComponents() const
{
	switch(format)
	{
	case VK_FORMAT_A1R5G5B5_UNORM_PACK16:
	case VK_FORMAT_B4G4R4A4_UNORM_PACK16:
	case VK_FORMAT_R5G6B5_UNORM_PACK16:
	case VK_FORMAT_R8_SNORM:
	case VK_FORMAT_R8G8_SNORM:
	case VK_FORMAT_R8G8B8A8_SNORM:
	case VK_FORMAT_R8_SINT:
	case VK_FORMAT_R8_UINT:
	case VK_FORMAT_R8G8_SINT:
	case VK_FORMAT_R8G8_UINT:
	case VK_FORMAT_R8G8B8A8_SINT:
	case VK_FORMAT_R8G8B8A8_UINT:
	case VK_FORMAT_R8G8_UNORM:
	case VK_FORMAT_R8G8_SRGB:
	case VK_FORMAT_B8G8R8_UNORM:
	case VK_FORMAT_B8G8R8A8_UNORM:
	case VK_FORMAT_R8G8B8A8_UNORM:
	case VK_FORMAT_B8G8R8_SRGB:
	case VK_FORMAT_R8G8B8A8_SRGB:
	case VK_FORMAT_B8G8R8A8_SRGB:
	case VK_FORMAT_R16_UNORM:
	case VK_FORMAT_R16_SNORM:
	case VK_FORMAT_R16G16_UNORM:
	case VK_FORMAT_R16G16_SNORM:
	case VK_FORMAT_R16G16B16A16_UNORM:
	case VK_FORMAT_R16_SINT:
	case VK_FORMAT_R16_UINT:
	case VK_FORMAT_R16_SFLOAT:
	case VK_FORMAT_R16G16_SINT:
	case VK_FORMAT_R16G16_UINT:
	case VK_FORMAT_R16G16_SFLOAT:
	case VK_FORMAT_R16G16B16A16_SINT:
	case VK_FORMAT_R16G16B16A16_UINT:
	case VK_FORMAT_R16G16B16A16_SFLOAT:
	case VK_FORMAT_R32_SFLOAT:
	case VK_FORMAT_R32G32_SFLOAT:
	case VK_FORMAT_R32G32B32A32_SFLOAT:
	case VK_FORMAT_R8_UNORM:
	case VK_FORMAT_R8_SRGB:
	case VK_FORMAT_G8_B8_R8_3PLANE_420_UNORM:
	case VK_FORMAT_G8_B8R8_2PLANE_420_UNORM:
	case VK_FORMAT_A2B10G10R10_UNORM_PACK32:
	case VK_FORMAT_A2B10G10R10_UINT_PACK32:
	case VK_FORMAT_E5B9G9R9_UFLOAT_PACK32:
	case VK_FORMAT_B10G11R11_UFLOAT_PACK32:
	case VK_FORMAT_D16_UNORM:
		return false;
	case VK_FORMAT_R32_SINT:
	case VK_FORMAT_R32_UINT:
	case VK_FORMAT_R32G32_SINT:
	case VK_FORMAT_R32G32_UINT:
	case VK_FORMAT_R32G32B32A32_SINT:
	case VK_FORMAT_R32G32B32A32_UINT:
		return true;
	default:
		UNIMPLEMENTED("Format: %d", int(format));
	}

	return false;
}

bool Format::isRGBComponent(int component) const
{
	switch(format)
	{
	case VK_FORMAT_R8_SNORM:
	case VK_FORMAT_R8_UNORM:
	case VK_FORMAT_R8_SRGB:
	case VK_FORMAT_R8_SINT:
	case VK_FORMAT_R8_UINT:
	case VK_FORMAT_R16_UNORM:
	case VK_FORMAT_R16_SNORM:
	case VK_FORMAT_R16_SINT:
	case VK_FORMAT_R16_UINT:
	case VK_FORMAT_R16_SFLOAT:
	case VK_FORMAT_R32_SINT:
	case VK_FORMAT_R32_UINT:
	case VK_FORMAT_R32_SFLOAT:
		return component < 1;
	case VK_FORMAT_R8G8_SNORM:
	case VK_FORMAT_R8G8_UNORM:
	case VK_FORMAT_R8G8_SRGB:
	case VK_FORMAT_R8G8_SINT:
	case VK_FORMAT_R8G8_UINT:
	case VK_FORMAT_R16G16_SINT:
	case VK_FORMAT_R16G16_UINT:
	case VK_FORMAT_R16G16_SNORM:
	case VK_FORMAT_R16G16_UNORM:
	case VK_FORMAT_R16G16_SFLOAT:
	case VK_FORMAT_R32G32_SINT:
	case VK_FORMAT_R32G32_UINT:
	case VK_FORMAT_R32G32_SFLOAT:
		return component < 2;
	case VK_FORMAT_A1R5G5B5_UNORM_PACK16:
	case VK_FORMAT_B4G4R4A4_UNORM_PACK16:
	case VK_FORMAT_R5G6B5_UNORM_PACK16:
	case VK_FORMAT_B8G8R8_UNORM:
	case VK_FORMAT_B8G8R8_SRGB:
	case VK_FORMAT_R8G8B8A8_SNORM:
	case VK_FORMAT_R8G8B8A8_UNORM:
	case VK_FORMAT_R8G8B8A8_SINT:
	case VK_FORMAT_R8G8B8A8_UINT:
	case VK_FORMAT_B8G8R8A8_UNORM:
	case VK_FORMAT_R8G8B8A8_SRGB:
	case VK_FORMAT_B8G8R8A8_SRGB:
	case VK_FORMAT_R16G16B16A16_UNORM:
	case VK_FORMAT_R16G16B16A16_SINT:
	case VK_FORMAT_R16G16B16A16_UINT:
	case VK_FORMAT_R16G16B16A16_SFLOAT:
	case VK_FORMAT_R32G32B32A32_SINT:
	case VK_FORMAT_R32G32B32A32_UINT:
	case VK_FORMAT_R32G32B32A32_SFLOAT:
	case VK_FORMAT_G8_B8_R8_3PLANE_420_UNORM:
	case VK_FORMAT_G8_B8R8_2PLANE_420_UNORM:
	case VK_FORMAT_E5B9G9R9_UFLOAT_PACK32:
	case VK_FORMAT_B10G11R11_UFLOAT_PACK32:
		return component < 3;
	case VK_FORMAT_D32_SFLOAT:
	case VK_FORMAT_D16_UNORM:
		return false;
	default:
		UNIMPLEMENTED("Format: %d", int(format));
	}

	return false;
}

} // namespace vk