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DirectXTexUtil.cpp
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DirectXTexUtil.cpp
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//-------------------------------------------------------------------------------------
// DirectXTexUtil.cpp
//
// DirectX Texture Library - Utilities
//
// Copyright (c) Microsoft Corporation.
// Licensed under the MIT License.
//
// http://go.microsoft.com/fwlink/?LinkId=248926
//-------------------------------------------------------------------------------------
#include "DirectXTexP.h"
#if (defined(_XBOX_ONE) && defined(_TITLE)) || defined(_GAMING_XBOX)
static_assert(XBOX_DXGI_FORMAT_R10G10B10_7E3_A2_FLOAT == DXGI_FORMAT_R10G10B10_7E3_A2_FLOAT, "Xbox mismatch detected");
static_assert(XBOX_DXGI_FORMAT_R10G10B10_6E4_A2_FLOAT == DXGI_FORMAT_R10G10B10_6E4_A2_FLOAT, "Xbox mismatch detected");
static_assert(XBOX_DXGI_FORMAT_D16_UNORM_S8_UINT == DXGI_FORMAT_D16_UNORM_S8_UINT, "Xbox mismatch detected");
static_assert(XBOX_DXGI_FORMAT_R16_UNORM_X8_TYPELESS == DXGI_FORMAT_R16_UNORM_X8_TYPELESS, "Xbox mismatch detected");
static_assert(XBOX_DXGI_FORMAT_X16_TYPELESS_G8_UINT == DXGI_FORMAT_X16_TYPELESS_G8_UINT, "Xbox mismatch detected");
static_assert(XBOX_DXGI_FORMAT_R10G10B10_SNORM_A2_UNORM == DXGI_FORMAT_R10G10B10_SNORM_A2_UNORM, "Xbox mismatch detected");
static_assert(XBOX_DXGI_FORMAT_R4G4_UNORM == DXGI_FORMAT_R4G4_UNORM, "Xbox mismatch detected");
#endif
#if (_WIN32_WINNT >= _WIN32_WINNT_WIN10)
static_assert(WIN10_DXGI_FORMAT_P208 == DXGI_FORMAT_P208, "Windows SDK mismatch detected");
static_assert(WIN10_DXGI_FORMAT_V208 == DXGI_FORMAT_V208, "Windows SDK mismatch detected");
static_assert(WIN10_DXGI_FORMAT_V408 == DXGI_FORMAT_V408, "Windows SDK mismatch detected");
#endif
#if defined(NTDDI_WIN11_GE) && !defined(_GAMING_XBOX)
static_assert(WIN11_DXGI_FORMAT_A4B4G4R4_UNORM == DXGI_FORMAT_A4B4G4R4_UNORM, "Windows SDK mismatch detected");
#endif
using namespace DirectX;
using Microsoft::WRL::ComPtr;
namespace
{
#ifdef _WIN32
//-------------------------------------------------------------------------------------
// WIC Pixel Format Translation Data
//-------------------------------------------------------------------------------------
struct WICTranslate
{
const GUID& wic;
DXGI_FORMAT format;
bool srgb;
constexpr WICTranslate(const GUID& wg, DXGI_FORMAT fmt, bool isrgb) noexcept :
wic(wg),
format(fmt),
srgb(isrgb) {}
};
constexpr WICTranslate g_WICFormats[] =
{
{ GUID_WICPixelFormat128bppRGBAFloat, DXGI_FORMAT_R32G32B32A32_FLOAT, false },
{ GUID_WICPixelFormat64bppRGBAHalf, DXGI_FORMAT_R16G16B16A16_FLOAT, false },
{ GUID_WICPixelFormat64bppRGBA, DXGI_FORMAT_R16G16B16A16_UNORM, true },
{ GUID_WICPixelFormat32bppRGBA, DXGI_FORMAT_R8G8B8A8_UNORM, true },
{ GUID_WICPixelFormat32bppBGRA, DXGI_FORMAT_B8G8R8A8_UNORM, true }, // DXGI 1.1
{ GUID_WICPixelFormat32bppBGR, DXGI_FORMAT_B8G8R8X8_UNORM, true }, // DXGI 1.1
{ GUID_WICPixelFormat32bppRGBA1010102XR, DXGI_FORMAT_R10G10B10_XR_BIAS_A2_UNORM, true }, // DXGI 1.1
{ GUID_WICPixelFormat32bppRGBA1010102, DXGI_FORMAT_R10G10B10A2_UNORM, true },
{ GUID_WICPixelFormat16bppBGRA5551, DXGI_FORMAT_B5G5R5A1_UNORM, true },
{ GUID_WICPixelFormat16bppBGR565, DXGI_FORMAT_B5G6R5_UNORM, true },
{ GUID_WICPixelFormat32bppGrayFloat, DXGI_FORMAT_R32_FLOAT, false },
{ GUID_WICPixelFormat16bppGrayHalf, DXGI_FORMAT_R16_FLOAT, false },
{ GUID_WICPixelFormat16bppGray, DXGI_FORMAT_R16_UNORM, true },
{ GUID_WICPixelFormat8bppGray, DXGI_FORMAT_R8_UNORM, true },
{ GUID_WICPixelFormat8bppAlpha, DXGI_FORMAT_A8_UNORM, false },
{ GUID_WICPixelFormatBlackWhite, DXGI_FORMAT_R1_UNORM, false },
};
bool g_WIC2 = false;
IWICImagingFactory* g_Factory = nullptr;
BOOL WINAPI InitializeWICFactory(PINIT_ONCE, PVOID, PVOID *ifactory) noexcept
{
#if (_WIN32_WINNT >= _WIN32_WINNT_WIN8) || defined(_WIN7_PLATFORM_UPDATE)
HRESULT hr = CoCreateInstance(
CLSID_WICImagingFactory2,
nullptr,
CLSCTX_INPROC_SERVER,
__uuidof(IWICImagingFactory2),
ifactory
);
if (SUCCEEDED(hr))
{
// WIC2 is available on Windows 10, Windows 8.x, and Windows 7 SP1 with KB 2670838 installed
g_WIC2 = true;
return TRUE;
}
else
{
g_WIC2 = false;
hr = CoCreateInstance(
CLSID_WICImagingFactory1,
nullptr,
CLSCTX_INPROC_SERVER,
__uuidof(IWICImagingFactory),
ifactory
);
return SUCCEEDED(hr) ? TRUE : FALSE;
}
#else
g_WIC2 = false;
return SUCCEEDED(CoCreateInstance(
CLSID_WICImagingFactory,
nullptr,
CLSCTX_INPROC_SERVER,
__uuidof(IWICImagingFactory),
ifactory)) ? TRUE : FALSE;
#endif
}
#else // !WIN32
inline void * _aligned_malloc(size_t size, size_t alignment)
{
size = (size + alignment - 1) & ~(alignment - 1);
return std::aligned_alloc(alignment, size);
}
#define _aligned_free free
#endif
}
#ifdef _WIN32
//=====================================================================================
// WIC Utilities
//=====================================================================================
_Use_decl_annotations_
DXGI_FORMAT DirectX::Internal::WICToDXGI(const GUID& guid) noexcept
{
for (size_t i = 0; i < std::size(g_WICFormats); ++i)
{
if (memcmp(&g_WICFormats[i].wic, &guid, sizeof(GUID)) == 0)
return g_WICFormats[i].format;
}
#if (_WIN32_WINNT >= _WIN32_WINNT_WIN8) || defined(_WIN7_PLATFORM_UPDATE)
if (g_WIC2)
{
if (memcmp(&GUID_WICPixelFormat96bppRGBFloat, &guid, sizeof(GUID)) == 0)
return DXGI_FORMAT_R32G32B32_FLOAT;
}
#endif
return DXGI_FORMAT_UNKNOWN;
}
_Use_decl_annotations_
bool DirectX::Internal::DXGIToWIC(DXGI_FORMAT format, GUID& guid, bool ignoreRGBvsBGR) noexcept
{
switch (format)
{
case DXGI_FORMAT_R8G8B8A8_UNORM:
case DXGI_FORMAT_R8G8B8A8_UNORM_SRGB:
if (ignoreRGBvsBGR)
{
// If we are not doing conversion so don't really care about BGR vs RGB color-order,
// we can use the canonical WIC 32bppBGRA format which avoids an extra format conversion when using the WIC scaler
memcpy(&guid, &GUID_WICPixelFormat32bppBGRA, sizeof(GUID));
}
else
{
memcpy(&guid, &GUID_WICPixelFormat32bppRGBA, sizeof(GUID));
}
return true;
case DXGI_FORMAT_D32_FLOAT:
memcpy(&guid, &GUID_WICPixelFormat32bppGrayFloat, sizeof(GUID));
return true;
case DXGI_FORMAT_D16_UNORM:
memcpy(&guid, &GUID_WICPixelFormat16bppGray, sizeof(GUID));
return true;
case DXGI_FORMAT_B8G8R8A8_UNORM_SRGB:
memcpy(&guid, &GUID_WICPixelFormat32bppBGRA, sizeof(GUID));
return true;
case DXGI_FORMAT_B8G8R8X8_UNORM_SRGB:
memcpy(&guid, &GUID_WICPixelFormat32bppBGR, sizeof(GUID));
return true;
#if (_WIN32_WINNT >= _WIN32_WINNT_WIN8) || defined(_WIN7_PLATFORM_UPDATE)
case DXGI_FORMAT_R32G32B32_FLOAT:
if (g_WIC2)
{
memcpy(&guid, &GUID_WICPixelFormat96bppRGBFloat, sizeof(GUID));
return true;
}
break;
#endif
default:
for (size_t i = 0; i < std::size(g_WICFormats); ++i)
{
if (g_WICFormats[i].format == format)
{
memcpy(&guid, &g_WICFormats[i].wic, sizeof(GUID));
return true;
}
}
break;
}
memset(&guid, 0, sizeof(GUID));
return false;
}
TEX_FILTER_FLAGS DirectX::Internal::CheckWICColorSpace(_In_ const GUID& sourceGUID, _In_ const GUID& targetGUID) noexcept
{
TEX_FILTER_FLAGS srgb = TEX_FILTER_DEFAULT;
for (size_t i = 0; i < std::size(g_WICFormats); ++i)
{
if (memcmp(&g_WICFormats[i].wic, &sourceGUID, sizeof(GUID)) == 0)
{
if (g_WICFormats[i].srgb)
srgb |= TEX_FILTER_SRGB_IN;
}
if (memcmp(&g_WICFormats[i].wic, &targetGUID, sizeof(GUID)) == 0)
{
if (g_WICFormats[i].srgb)
srgb |= TEX_FILTER_SRGB_OUT;
}
}
if ((srgb & (TEX_FILTER_SRGB_IN | TEX_FILTER_SRGB_OUT)) == (TEX_FILTER_SRGB_IN | TEX_FILTER_SRGB_OUT))
{
srgb &= ~(TEX_FILTER_SRGB_IN | TEX_FILTER_SRGB_OUT);
}
return srgb;
}
//-------------------------------------------------------------------------------------
// Public helper function to get common WIC codec GUIDs
//-------------------------------------------------------------------------------------
_Use_decl_annotations_
REFGUID DirectX::GetWICCodec(WICCodecs codec) noexcept
{
switch (codec)
{
case WIC_CODEC_BMP:
return GUID_ContainerFormatBmp;
case WIC_CODEC_JPEG:
return GUID_ContainerFormatJpeg;
case WIC_CODEC_PNG:
return GUID_ContainerFormatPng;
case WIC_CODEC_TIFF:
return GUID_ContainerFormatTiff;
case WIC_CODEC_GIF:
return GUID_ContainerFormatGif;
case WIC_CODEC_WMP:
return GUID_ContainerFormatWmp;
case WIC_CODEC_ICO:
return GUID_ContainerFormatIco;
#ifdef NTDDI_WIN10_RS4
case WIC_CODEC_HEIF:
// This requires installing https://aka.ms/heif
return GUID_ContainerFormatHeif;
#endif
default:
return GUID_NULL;
}
}
//-------------------------------------------------------------------------------------
// Singleton function for WIC factory
//-------------------------------------------------------------------------------------
IWICImagingFactory* DirectX::GetWICFactory(bool& iswic2) noexcept
{
if (g_Factory)
{
iswic2 = g_WIC2;
return g_Factory;
}
static INIT_ONCE s_initOnce = INIT_ONCE_STATIC_INIT;
if (!InitOnceExecuteOnce(&s_initOnce,
InitializeWICFactory,
nullptr,
reinterpret_cast<LPVOID*>(&g_Factory)))
{
return nullptr;
}
iswic2 = g_WIC2;
return g_Factory;
}
//-------------------------------------------------------------------------------------
// Optional initializer for WIC factory
//-------------------------------------------------------------------------------------
void DirectX::SetWICFactory(_In_opt_ IWICImagingFactory* pWIC) noexcept
{
if (pWIC == g_Factory)
return;
bool iswic2 = false;
if (pWIC)
{
#if(_WIN32_WINNT >= _WIN32_WINNT_WIN8) || defined(_WIN7_PLATFORM_UPDATE)
ComPtr<IWICImagingFactory2> wic2;
HRESULT hr = pWIC->QueryInterface(IID_PPV_ARGS(wic2.GetAddressOf()));
if (SUCCEEDED(hr))
{
iswic2 = true;
}
#endif
pWIC->AddRef();
}
g_WIC2 = iswic2;
std::swap(pWIC, g_Factory);
if (pWIC)
pWIC->Release();
}
#endif // WIN32
//=====================================================================================
// DXGI Format Utilities
//=====================================================================================
//-------------------------------------------------------------------------------------
_Use_decl_annotations_
bool DirectX::IsPacked(DXGI_FORMAT fmt) noexcept
{
switch (static_cast<int>(fmt))
{
case DXGI_FORMAT_R8G8_B8G8_UNORM:
case DXGI_FORMAT_G8R8_G8B8_UNORM:
case DXGI_FORMAT_YUY2: // 4:2:2 8-bit
case DXGI_FORMAT_Y210: // 4:2:2 10-bit
case DXGI_FORMAT_Y216: // 4:2:2 16-bit
return true;
default:
return false;
}
}
//-------------------------------------------------------------------------------------
_Use_decl_annotations_
bool DirectX::IsVideo(DXGI_FORMAT fmt) noexcept
{
switch (static_cast<int>(fmt))
{
case DXGI_FORMAT_AYUV:
case DXGI_FORMAT_Y410:
case DXGI_FORMAT_Y416:
case DXGI_FORMAT_NV12:
case DXGI_FORMAT_P010:
case DXGI_FORMAT_P016:
case DXGI_FORMAT_YUY2:
case DXGI_FORMAT_Y210:
case DXGI_FORMAT_Y216:
case DXGI_FORMAT_NV11:
// These video formats can be used with the 3D pipeline through special view mappings
case DXGI_FORMAT_420_OPAQUE:
case DXGI_FORMAT_AI44:
case DXGI_FORMAT_IA44:
case DXGI_FORMAT_P8:
case DXGI_FORMAT_A8P8:
// These are limited use video formats not usable in any way by the 3D pipeline
case WIN10_DXGI_FORMAT_P208:
case WIN10_DXGI_FORMAT_V208:
case WIN10_DXGI_FORMAT_V408:
// These video formats are for JPEG Hardware decode (DXGI 1.4)
return true;
default:
return false;
}
}
//-------------------------------------------------------------------------------------
_Use_decl_annotations_
bool DirectX::IsPlanar(DXGI_FORMAT fmt) noexcept
{
switch (static_cast<int>(fmt))
{
case DXGI_FORMAT_NV12: // 4:2:0 8-bit
case DXGI_FORMAT_P010: // 4:2:0 10-bit
case DXGI_FORMAT_P016: // 4:2:0 16-bit
case DXGI_FORMAT_420_OPAQUE:// 4:2:0 8-bit
case DXGI_FORMAT_NV11: // 4:1:1 8-bit
case WIN10_DXGI_FORMAT_P208: // 4:2:2 8-bit
case WIN10_DXGI_FORMAT_V208: // 4:4:0 8-bit
case WIN10_DXGI_FORMAT_V408: // 4:4:4 8-bit
// These are JPEG Hardware decode formats (DXGI 1.4)
case XBOX_DXGI_FORMAT_D16_UNORM_S8_UINT:
case XBOX_DXGI_FORMAT_R16_UNORM_X8_TYPELESS:
case XBOX_DXGI_FORMAT_X16_TYPELESS_G8_UINT:
// These are Xbox One platform specific types
return true;
default:
return false;
}
}
//-------------------------------------------------------------------------------------
_Use_decl_annotations_
bool DirectX::IsDepthStencil(DXGI_FORMAT fmt) noexcept
{
switch (static_cast<int>(fmt))
{
case DXGI_FORMAT_R32G8X24_TYPELESS:
case DXGI_FORMAT_D32_FLOAT_S8X24_UINT:
case DXGI_FORMAT_R32_FLOAT_X8X24_TYPELESS:
case DXGI_FORMAT_X32_TYPELESS_G8X24_UINT:
case DXGI_FORMAT_D32_FLOAT:
case DXGI_FORMAT_R24G8_TYPELESS:
case DXGI_FORMAT_D24_UNORM_S8_UINT:
case DXGI_FORMAT_R24_UNORM_X8_TYPELESS:
case DXGI_FORMAT_X24_TYPELESS_G8_UINT:
case DXGI_FORMAT_D16_UNORM:
case XBOX_DXGI_FORMAT_D16_UNORM_S8_UINT:
case XBOX_DXGI_FORMAT_R16_UNORM_X8_TYPELESS:
case XBOX_DXGI_FORMAT_X16_TYPELESS_G8_UINT:
return true;
default:
return false;
}
}
//-------------------------------------------------------------------------------------
_Use_decl_annotations_
bool DirectX::IsBGR(DXGI_FORMAT fmt) noexcept
{
switch (static_cast<int>(fmt))
{
case DXGI_FORMAT_B5G6R5_UNORM:
case DXGI_FORMAT_B5G5R5A1_UNORM:
case DXGI_FORMAT_B8G8R8A8_UNORM:
case DXGI_FORMAT_B8G8R8X8_UNORM:
case DXGI_FORMAT_B8G8R8A8_TYPELESS:
case DXGI_FORMAT_B8G8R8A8_UNORM_SRGB:
case DXGI_FORMAT_B8G8R8X8_TYPELESS:
case DXGI_FORMAT_B8G8R8X8_UNORM_SRGB:
case DXGI_FORMAT_B4G4R4A4_UNORM:
case WIN11_DXGI_FORMAT_A4B4G4R4_UNORM:
return true;
default:
return false;
}
}
//-------------------------------------------------------------------------------------
_Use_decl_annotations_
bool DirectX::IsTypeless(DXGI_FORMAT fmt, bool partialTypeless) noexcept
{
switch (static_cast<int>(fmt))
{
case DXGI_FORMAT_R32G32B32A32_TYPELESS:
case DXGI_FORMAT_R32G32B32_TYPELESS:
case DXGI_FORMAT_R16G16B16A16_TYPELESS:
case DXGI_FORMAT_R32G32_TYPELESS:
case DXGI_FORMAT_R32G8X24_TYPELESS:
case DXGI_FORMAT_R10G10B10A2_TYPELESS:
case DXGI_FORMAT_R8G8B8A8_TYPELESS:
case DXGI_FORMAT_R16G16_TYPELESS:
case DXGI_FORMAT_R32_TYPELESS:
case DXGI_FORMAT_R24G8_TYPELESS:
case DXGI_FORMAT_R8G8_TYPELESS:
case DXGI_FORMAT_R16_TYPELESS:
case DXGI_FORMAT_R8_TYPELESS:
case DXGI_FORMAT_BC1_TYPELESS:
case DXGI_FORMAT_BC2_TYPELESS:
case DXGI_FORMAT_BC3_TYPELESS:
case DXGI_FORMAT_BC4_TYPELESS:
case DXGI_FORMAT_BC5_TYPELESS:
case DXGI_FORMAT_B8G8R8A8_TYPELESS:
case DXGI_FORMAT_B8G8R8X8_TYPELESS:
case DXGI_FORMAT_BC6H_TYPELESS:
case DXGI_FORMAT_BC7_TYPELESS:
return true;
case DXGI_FORMAT_R32_FLOAT_X8X24_TYPELESS:
case DXGI_FORMAT_X32_TYPELESS_G8X24_UINT:
case DXGI_FORMAT_R24_UNORM_X8_TYPELESS:
case DXGI_FORMAT_X24_TYPELESS_G8_UINT:
case XBOX_DXGI_FORMAT_R16_UNORM_X8_TYPELESS:
case XBOX_DXGI_FORMAT_X16_TYPELESS_G8_UINT:
return partialTypeless;
default:
return false;
}
}
//-------------------------------------------------------------------------------------
_Use_decl_annotations_
bool DirectX::HasAlpha(DXGI_FORMAT fmt) noexcept
{
switch (static_cast<int>(fmt))
{
case DXGI_FORMAT_R32G32B32A32_TYPELESS:
case DXGI_FORMAT_R32G32B32A32_FLOAT:
case DXGI_FORMAT_R32G32B32A32_UINT:
case DXGI_FORMAT_R32G32B32A32_SINT:
case DXGI_FORMAT_R16G16B16A16_TYPELESS:
case DXGI_FORMAT_R16G16B16A16_FLOAT:
case DXGI_FORMAT_R16G16B16A16_UNORM:
case DXGI_FORMAT_R16G16B16A16_UINT:
case DXGI_FORMAT_R16G16B16A16_SNORM:
case DXGI_FORMAT_R16G16B16A16_SINT:
case DXGI_FORMAT_R10G10B10A2_TYPELESS:
case DXGI_FORMAT_R10G10B10A2_UNORM:
case DXGI_FORMAT_R10G10B10A2_UINT:
case DXGI_FORMAT_R8G8B8A8_TYPELESS:
case DXGI_FORMAT_R8G8B8A8_UNORM:
case DXGI_FORMAT_R8G8B8A8_UNORM_SRGB:
case DXGI_FORMAT_R8G8B8A8_UINT:
case DXGI_FORMAT_R8G8B8A8_SNORM:
case DXGI_FORMAT_R8G8B8A8_SINT:
case DXGI_FORMAT_A8_UNORM:
case DXGI_FORMAT_BC1_TYPELESS:
case DXGI_FORMAT_BC1_UNORM:
case DXGI_FORMAT_BC1_UNORM_SRGB:
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_B5G5R5A1_UNORM:
case DXGI_FORMAT_B8G8R8A8_UNORM:
case DXGI_FORMAT_R10G10B10_XR_BIAS_A2_UNORM:
case DXGI_FORMAT_B8G8R8A8_TYPELESS:
case DXGI_FORMAT_B8G8R8A8_UNORM_SRGB:
case DXGI_FORMAT_BC7_TYPELESS:
case DXGI_FORMAT_BC7_UNORM:
case DXGI_FORMAT_BC7_UNORM_SRGB:
case DXGI_FORMAT_AYUV:
case DXGI_FORMAT_Y410:
case DXGI_FORMAT_Y416:
case DXGI_FORMAT_AI44:
case DXGI_FORMAT_IA44:
case DXGI_FORMAT_A8P8:
case DXGI_FORMAT_B4G4R4A4_UNORM:
case XBOX_DXGI_FORMAT_R10G10B10_7E3_A2_FLOAT:
case XBOX_DXGI_FORMAT_R10G10B10_6E4_A2_FLOAT:
case XBOX_DXGI_FORMAT_R10G10B10_SNORM_A2_UNORM:
case WIN11_DXGI_FORMAT_A4B4G4R4_UNORM:
return true;
default:
return false;
}
}
//-------------------------------------------------------------------------------------
// Returns bits-per-pixel for a given DXGI format, or 0 on failure
//-------------------------------------------------------------------------------------
_Use_decl_annotations_
size_t DirectX::BitsPerPixel(DXGI_FORMAT fmt) noexcept
{
switch (static_cast<int>(fmt))
{
case DXGI_FORMAT_R32G32B32A32_TYPELESS:
case DXGI_FORMAT_R32G32B32A32_FLOAT:
case DXGI_FORMAT_R32G32B32A32_UINT:
case DXGI_FORMAT_R32G32B32A32_SINT:
return 128;
case DXGI_FORMAT_R32G32B32_TYPELESS:
case DXGI_FORMAT_R32G32B32_FLOAT:
case DXGI_FORMAT_R32G32B32_UINT:
case DXGI_FORMAT_R32G32B32_SINT:
return 96;
case DXGI_FORMAT_R16G16B16A16_TYPELESS:
case DXGI_FORMAT_R16G16B16A16_FLOAT:
case DXGI_FORMAT_R16G16B16A16_UNORM:
case DXGI_FORMAT_R16G16B16A16_UINT:
case DXGI_FORMAT_R16G16B16A16_SNORM:
case DXGI_FORMAT_R16G16B16A16_SINT:
case DXGI_FORMAT_R32G32_TYPELESS:
case DXGI_FORMAT_R32G32_FLOAT:
case DXGI_FORMAT_R32G32_UINT:
case DXGI_FORMAT_R32G32_SINT:
case DXGI_FORMAT_R32G8X24_TYPELESS:
case DXGI_FORMAT_D32_FLOAT_S8X24_UINT:
case DXGI_FORMAT_R32_FLOAT_X8X24_TYPELESS:
case DXGI_FORMAT_X32_TYPELESS_G8X24_UINT:
case DXGI_FORMAT_Y416:
case DXGI_FORMAT_Y210:
case DXGI_FORMAT_Y216:
return 64;
case DXGI_FORMAT_R10G10B10A2_TYPELESS:
case DXGI_FORMAT_R10G10B10A2_UNORM:
case DXGI_FORMAT_R10G10B10A2_UINT:
case DXGI_FORMAT_R11G11B10_FLOAT:
case DXGI_FORMAT_R8G8B8A8_TYPELESS:
case DXGI_FORMAT_R8G8B8A8_UNORM:
case DXGI_FORMAT_R8G8B8A8_UNORM_SRGB:
case DXGI_FORMAT_R8G8B8A8_UINT:
case DXGI_FORMAT_R8G8B8A8_SNORM:
case DXGI_FORMAT_R8G8B8A8_SINT:
case DXGI_FORMAT_R16G16_TYPELESS:
case DXGI_FORMAT_R16G16_FLOAT:
case DXGI_FORMAT_R16G16_UNORM:
case DXGI_FORMAT_R16G16_UINT:
case DXGI_FORMAT_R16G16_SNORM:
case DXGI_FORMAT_R16G16_SINT:
case DXGI_FORMAT_R32_TYPELESS:
case DXGI_FORMAT_D32_FLOAT:
case DXGI_FORMAT_R32_FLOAT:
case DXGI_FORMAT_R32_UINT:
case DXGI_FORMAT_R32_SINT:
case DXGI_FORMAT_R24G8_TYPELESS:
case DXGI_FORMAT_D24_UNORM_S8_UINT:
case DXGI_FORMAT_R24_UNORM_X8_TYPELESS:
case DXGI_FORMAT_X24_TYPELESS_G8_UINT:
case DXGI_FORMAT_R9G9B9E5_SHAREDEXP:
case DXGI_FORMAT_R8G8_B8G8_UNORM:
case DXGI_FORMAT_G8R8_G8B8_UNORM:
case DXGI_FORMAT_B8G8R8A8_UNORM:
case DXGI_FORMAT_B8G8R8X8_UNORM:
case DXGI_FORMAT_R10G10B10_XR_BIAS_A2_UNORM:
case DXGI_FORMAT_B8G8R8A8_TYPELESS:
case DXGI_FORMAT_B8G8R8A8_UNORM_SRGB:
case DXGI_FORMAT_B8G8R8X8_TYPELESS:
case DXGI_FORMAT_B8G8R8X8_UNORM_SRGB:
case DXGI_FORMAT_AYUV:
case DXGI_FORMAT_Y410:
case DXGI_FORMAT_YUY2:
case XBOX_DXGI_FORMAT_R10G10B10_7E3_A2_FLOAT:
case XBOX_DXGI_FORMAT_R10G10B10_6E4_A2_FLOAT:
case XBOX_DXGI_FORMAT_R10G10B10_SNORM_A2_UNORM:
return 32;
case DXGI_FORMAT_P010:
case DXGI_FORMAT_P016:
case XBOX_DXGI_FORMAT_D16_UNORM_S8_UINT:
case XBOX_DXGI_FORMAT_R16_UNORM_X8_TYPELESS:
case XBOX_DXGI_FORMAT_X16_TYPELESS_G8_UINT:
case WIN10_DXGI_FORMAT_V408:
return 24;
case DXGI_FORMAT_R8G8_TYPELESS:
case DXGI_FORMAT_R8G8_UNORM:
case DXGI_FORMAT_R8G8_UINT:
case DXGI_FORMAT_R8G8_SNORM:
case DXGI_FORMAT_R8G8_SINT:
case DXGI_FORMAT_R16_TYPELESS:
case DXGI_FORMAT_R16_FLOAT:
case DXGI_FORMAT_D16_UNORM:
case DXGI_FORMAT_R16_UNORM:
case DXGI_FORMAT_R16_UINT:
case DXGI_FORMAT_R16_SNORM:
case DXGI_FORMAT_R16_SINT:
case DXGI_FORMAT_B5G6R5_UNORM:
case DXGI_FORMAT_B5G5R5A1_UNORM:
case DXGI_FORMAT_A8P8:
case DXGI_FORMAT_B4G4R4A4_UNORM:
case WIN10_DXGI_FORMAT_P208:
case WIN10_DXGI_FORMAT_V208:
case WIN11_DXGI_FORMAT_A4B4G4R4_UNORM:
return 16;
case DXGI_FORMAT_NV12:
case DXGI_FORMAT_420_OPAQUE:
case DXGI_FORMAT_NV11:
return 12;
case DXGI_FORMAT_R8_TYPELESS:
case DXGI_FORMAT_R8_UNORM:
case DXGI_FORMAT_R8_UINT:
case DXGI_FORMAT_R8_SNORM:
case DXGI_FORMAT_R8_SINT:
case DXGI_FORMAT_A8_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_TYPELESS:
case DXGI_FORMAT_BC5_UNORM:
case DXGI_FORMAT_BC5_SNORM:
case DXGI_FORMAT_BC6H_TYPELESS:
case DXGI_FORMAT_BC6H_UF16:
case DXGI_FORMAT_BC6H_SF16:
case DXGI_FORMAT_BC7_TYPELESS:
case DXGI_FORMAT_BC7_UNORM:
case DXGI_FORMAT_BC7_UNORM_SRGB:
case DXGI_FORMAT_AI44:
case DXGI_FORMAT_IA44:
case DXGI_FORMAT_P8:
case XBOX_DXGI_FORMAT_R4G4_UNORM:
return 8;
case DXGI_FORMAT_R1_UNORM:
return 1;
case DXGI_FORMAT_BC1_TYPELESS:
case DXGI_FORMAT_BC1_UNORM:
case DXGI_FORMAT_BC1_UNORM_SRGB:
case DXGI_FORMAT_BC4_TYPELESS:
case DXGI_FORMAT_BC4_UNORM:
case DXGI_FORMAT_BC4_SNORM:
return 4;
default:
return 0;
}
}
//-------------------------------------------------------------------------------------
// Returns bits-per-color-channel for a given DXGI format, or 0 on failure
// For mixed formats, it returns the largest color-depth in the format
//-------------------------------------------------------------------------------------
_Use_decl_annotations_
size_t DirectX::BitsPerColor(DXGI_FORMAT fmt) noexcept
{
switch (static_cast<int>(fmt))
{
case DXGI_FORMAT_R32G32B32A32_TYPELESS:
case DXGI_FORMAT_R32G32B32A32_FLOAT:
case DXGI_FORMAT_R32G32B32A32_UINT:
case DXGI_FORMAT_R32G32B32A32_SINT:
case DXGI_FORMAT_R32G32B32_TYPELESS:
case DXGI_FORMAT_R32G32B32_FLOAT:
case DXGI_FORMAT_R32G32B32_UINT:
case DXGI_FORMAT_R32G32B32_SINT:
case DXGI_FORMAT_R32G32_TYPELESS:
case DXGI_FORMAT_R32G32_FLOAT:
case DXGI_FORMAT_R32G32_UINT:
case DXGI_FORMAT_R32G32_SINT:
case DXGI_FORMAT_R32G8X24_TYPELESS:
case DXGI_FORMAT_D32_FLOAT_S8X24_UINT:
case DXGI_FORMAT_R32_FLOAT_X8X24_TYPELESS:
case DXGI_FORMAT_X32_TYPELESS_G8X24_UINT:
case DXGI_FORMAT_R32_TYPELESS:
case DXGI_FORMAT_D32_FLOAT:
case DXGI_FORMAT_R32_FLOAT:
case DXGI_FORMAT_R32_UINT:
case DXGI_FORMAT_R32_SINT:
return 32;
case DXGI_FORMAT_R24G8_TYPELESS:
case DXGI_FORMAT_D24_UNORM_S8_UINT:
case DXGI_FORMAT_R24_UNORM_X8_TYPELESS:
case DXGI_FORMAT_X24_TYPELESS_G8_UINT:
return 24;
case DXGI_FORMAT_R16G16B16A16_TYPELESS:
case DXGI_FORMAT_R16G16B16A16_FLOAT:
case DXGI_FORMAT_R16G16B16A16_UNORM:
case DXGI_FORMAT_R16G16B16A16_UINT:
case DXGI_FORMAT_R16G16B16A16_SNORM:
case DXGI_FORMAT_R16G16B16A16_SINT:
case DXGI_FORMAT_R16G16_TYPELESS:
case DXGI_FORMAT_R16G16_FLOAT:
case DXGI_FORMAT_R16G16_UNORM:
case DXGI_FORMAT_R16G16_UINT:
case DXGI_FORMAT_R16G16_SNORM:
case DXGI_FORMAT_R16G16_SINT:
case DXGI_FORMAT_R16_TYPELESS:
case DXGI_FORMAT_R16_FLOAT:
case DXGI_FORMAT_D16_UNORM:
case DXGI_FORMAT_R16_UNORM:
case DXGI_FORMAT_R16_UINT:
case DXGI_FORMAT_R16_SNORM:
case DXGI_FORMAT_R16_SINT:
case DXGI_FORMAT_BC6H_TYPELESS:
case DXGI_FORMAT_BC6H_UF16:
case DXGI_FORMAT_BC6H_SF16:
case DXGI_FORMAT_Y416:
case DXGI_FORMAT_P016:
case DXGI_FORMAT_Y216:
case XBOX_DXGI_FORMAT_D16_UNORM_S8_UINT:
case XBOX_DXGI_FORMAT_R16_UNORM_X8_TYPELESS:
case XBOX_DXGI_FORMAT_X16_TYPELESS_G8_UINT:
return 16;
case DXGI_FORMAT_R9G9B9E5_SHAREDEXP:
return 14;
case DXGI_FORMAT_R11G11B10_FLOAT:
return 11;
case DXGI_FORMAT_R10G10B10A2_TYPELESS:
case DXGI_FORMAT_R10G10B10A2_UNORM:
case DXGI_FORMAT_R10G10B10A2_UINT:
case DXGI_FORMAT_R10G10B10_XR_BIAS_A2_UNORM:
case DXGI_FORMAT_Y410:
case DXGI_FORMAT_P010:
case DXGI_FORMAT_Y210:
case XBOX_DXGI_FORMAT_R10G10B10_7E3_A2_FLOAT:
case XBOX_DXGI_FORMAT_R10G10B10_6E4_A2_FLOAT:
case XBOX_DXGI_FORMAT_R10G10B10_SNORM_A2_UNORM:
return 10;
case DXGI_FORMAT_R8G8B8A8_TYPELESS:
case DXGI_FORMAT_R8G8B8A8_UNORM:
case DXGI_FORMAT_R8G8B8A8_UNORM_SRGB:
case DXGI_FORMAT_R8G8B8A8_UINT:
case DXGI_FORMAT_R8G8B8A8_SNORM:
case DXGI_FORMAT_R8G8B8A8_SINT:
case DXGI_FORMAT_R8G8_TYPELESS:
case DXGI_FORMAT_R8G8_UNORM:
case DXGI_FORMAT_R8G8_UINT:
case DXGI_FORMAT_R8G8_SNORM:
case DXGI_FORMAT_R8G8_SINT:
case DXGI_FORMAT_R8_TYPELESS:
case DXGI_FORMAT_R8_UNORM:
case DXGI_FORMAT_R8_UINT:
case DXGI_FORMAT_R8_SNORM:
case DXGI_FORMAT_R8_SINT:
case DXGI_FORMAT_A8_UNORM:
case DXGI_FORMAT_R8G8_B8G8_UNORM:
case DXGI_FORMAT_G8R8_G8B8_UNORM:
case DXGI_FORMAT_BC4_TYPELESS:
case DXGI_FORMAT_BC4_UNORM:
case DXGI_FORMAT_BC4_SNORM:
case DXGI_FORMAT_BC5_TYPELESS:
case DXGI_FORMAT_BC5_UNORM:
case DXGI_FORMAT_BC5_SNORM:
case DXGI_FORMAT_B8G8R8A8_UNORM:
case DXGI_FORMAT_B8G8R8X8_UNORM:
case DXGI_FORMAT_B8G8R8A8_TYPELESS:
case DXGI_FORMAT_B8G8R8A8_UNORM_SRGB:
case DXGI_FORMAT_B8G8R8X8_TYPELESS:
case DXGI_FORMAT_B8G8R8X8_UNORM_SRGB:
case DXGI_FORMAT_AYUV:
case DXGI_FORMAT_NV12:
case DXGI_FORMAT_420_OPAQUE:
case DXGI_FORMAT_YUY2:
case DXGI_FORMAT_NV11:
case WIN10_DXGI_FORMAT_P208:
case WIN10_DXGI_FORMAT_V208:
case WIN10_DXGI_FORMAT_V408:
return 8;
case DXGI_FORMAT_BC7_TYPELESS:
case DXGI_FORMAT_BC7_UNORM:
case DXGI_FORMAT_BC7_UNORM_SRGB:
return 7;
case DXGI_FORMAT_BC1_TYPELESS:
case DXGI_FORMAT_BC1_UNORM:
case DXGI_FORMAT_BC1_UNORM_SRGB:
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_B5G6R5_UNORM:
return 6;
case DXGI_FORMAT_B5G5R5A1_UNORM:
return 5;
case DXGI_FORMAT_B4G4R4A4_UNORM:
case XBOX_DXGI_FORMAT_R4G4_UNORM:
case WIN11_DXGI_FORMAT_A4B4G4R4_UNORM:
return 4;
case DXGI_FORMAT_R1_UNORM:
return 1;
case DXGI_FORMAT_AI44:
case DXGI_FORMAT_IA44:
case DXGI_FORMAT_P8:
case DXGI_FORMAT_A8P8:
// Palettized formats return 0 for this function
default:
return 0;
}
}
//-------------------------------------------------------------------------------------
// Computes the image row pitch in bytes, and the slice ptich (size in bytes of the image)
// based on DXGI format, width, and height
//-------------------------------------------------------------------------------------
_Use_decl_annotations_
HRESULT DirectX::ComputePitch(DXGI_FORMAT fmt, size_t width, size_t height,
size_t& rowPitch, size_t& slicePitch, CP_FLAGS flags) noexcept
{
uint64_t pitch = 0;
uint64_t slice = 0;
switch (static_cast<int>(fmt))
{
case DXGI_FORMAT_BC1_TYPELESS:
case DXGI_FORMAT_BC1_UNORM:
case DXGI_FORMAT_BC1_UNORM_SRGB:
case DXGI_FORMAT_BC4_TYPELESS:
case DXGI_FORMAT_BC4_UNORM:
case DXGI_FORMAT_BC4_SNORM:
assert(IsCompressed(fmt));
{
if (flags & CP_FLAGS_BAD_DXTN_TAILS)
{
const size_t nbw = width >> 2;
const size_t nbh = height >> 2;
pitch = std::max<uint64_t>(1u, uint64_t(nbw) * 8u);
slice = std::max<uint64_t>(1u, pitch * uint64_t(nbh));
}
else
{
const uint64_t nbw = std::max<uint64_t>(1u, (uint64_t(width) + 3u) / 4u);
const uint64_t nbh = std::max<uint64_t>(1u, (uint64_t(height) + 3u) / 4u);
pitch = nbw * 8u;
slice = pitch * nbh;
}
}
break;
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_TYPELESS:
case DXGI_FORMAT_BC5_UNORM:
case DXGI_FORMAT_BC5_SNORM:
case DXGI_FORMAT_BC6H_TYPELESS:
case DXGI_FORMAT_BC6H_UF16:
case DXGI_FORMAT_BC6H_SF16:
case DXGI_FORMAT_BC7_TYPELESS:
case DXGI_FORMAT_BC7_UNORM:
case DXGI_FORMAT_BC7_UNORM_SRGB:
assert(IsCompressed(fmt));
{
if (flags & CP_FLAGS_BAD_DXTN_TAILS)
{
const size_t nbw = width >> 2;
const size_t nbh = height >> 2;
pitch = std::max<uint64_t>(1u, uint64_t(nbw) * 16u);
slice = std::max<uint64_t>(1u, pitch * uint64_t(nbh));
}
else
{
const uint64_t nbw = std::max<uint64_t>(1u, (uint64_t(width) + 3u) / 4u);
const uint64_t nbh = std::max<uint64_t>(1u, (uint64_t(height) + 3u) / 4u);
pitch = nbw * 16u;
slice = pitch * nbh;
}
}
break;
case DXGI_FORMAT_R8G8_B8G8_UNORM:
case DXGI_FORMAT_G8R8_G8B8_UNORM:
case DXGI_FORMAT_YUY2:
assert(IsPacked(fmt));
pitch = ((uint64_t(width) + 1u) >> 1) * 4u;
slice = pitch * uint64_t(height);