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DirectXTexUtil.cpp
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DirectXTexUtil.cpp
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//-------------------------------------------------------------------------------------
// DirectXTexUtil.cpp
//
// DirectX Texture Library - Utilities
//
// THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF
// ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO
// THE IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A
// PARTICULAR PURPOSE.
//
// Copyright (c) Microsoft Corporation. All rights reserved.
//
// http://go.microsoft.com/fwlink/?LinkId=248926
//-------------------------------------------------------------------------------------
#include "directxtexp.h"
using Microsoft::WRL::ComPtr;
#if defined(_XBOX_ONE) && defined(_TITLE)
static_assert(XBOX_DXGI_FORMAT_R10G10B10_7E3_A2_FLOAT == DXGI_FORMAT_R10G10B10_7E3_A2_FLOAT, "Xbox One XDK mismatch detected");
static_assert(XBOX_DXGI_FORMAT_R10G10B10_6E4_A2_FLOAT == DXGI_FORMAT_R10G10B10_6E4_A2_FLOAT, "Xbox One XDK mismatch detected");
static_assert(XBOX_DXGI_FORMAT_D16_UNORM_S8_UINT == DXGI_FORMAT_D16_UNORM_S8_UINT, "Xbox One XDK mismatch detected");
static_assert(XBOX_DXGI_FORMAT_R16_UNORM_X8_TYPELESS == DXGI_FORMAT_R16_UNORM_X8_TYPELESS, "Xbox One XDK mismatch detected");
static_assert(XBOX_DXGI_FORMAT_X16_TYPELESS_G8_UINT == DXGI_FORMAT_X16_TYPELESS_G8_UINT, "Xbox One XDK mismatch detected");
static_assert(XBOX_DXGI_FORMAT_R10G10B10_SNORM_A2_UNORM == DXGI_FORMAT_R10G10B10_SNORM_A2_UNORM, "Xbox One XDK mismatch detected");
static_assert(XBOX_DXGI_FORMAT_R4G4_UNORM == DXGI_FORMAT_R4G4_UNORM, "Xbox One XDK 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
//-------------------------------------------------------------------------------------
// WIC Pixel Format Translation Data
//-------------------------------------------------------------------------------------
struct WICTranslate
{
GUID wic;
DXGI_FORMAT format;
bool srgb;
};
static 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 },
};
static bool g_WIC2 = false;
static IWICImagingFactory* g_Factory = nullptr;
namespace DirectX
{
//=====================================================================================
// WIC Utilities
//=====================================================================================
_Use_decl_annotations_
DXGI_FORMAT _WICToDXGI( const GUID& guid )
{
for( size_t i=0; i < _countof(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 _DXGIToWIC( DXGI_FORMAT format, GUID& guid, bool ignoreRGBvsBGR )
{
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 < _countof(g_WICFormats); ++i )
{
if ( g_WICFormats[i].format == format )
{
memcpy( &guid, &g_WICFormats[i].wic, sizeof(GUID) );
return true;
}
}
break;
}
memcpy( &guid, &GUID_NULL, sizeof(GUID) );
return false;
}
DWORD _CheckWICColorSpace( _In_ const GUID& sourceGUID, _In_ const GUID& targetGUID )
{
DWORD srgb = 0;
for( size_t i=0; i < _countof(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 GetWICCodec( WICCodecs codec )
{
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;
default:
return GUID_NULL;
}
}
//-------------------------------------------------------------------------------------
// Singleton function for WIC factory
//-------------------------------------------------------------------------------------
IWICImagingFactory* GetWICFactory(bool& iswic2)
{
if (g_Factory)
{
iswic2 = g_WIC2;
return g_Factory;
}
#if(_WIN32_WINNT >= _WIN32_WINNT_WIN8) || defined(_WIN7_PLATFORM_UPDATE)
HRESULT hr = CoCreateInstance(
CLSID_WICImagingFactory2,
nullptr,
CLSCTX_INPROC_SERVER,
__uuidof(IWICImagingFactory2),
(LPVOID*)&g_Factory
);
if (SUCCEEDED(hr))
{
// WIC2 is available on Windows 8 and Windows 7 SP1 with KB 2670838 installed
g_WIC2 = true;
}
else
{
g_WIC2 = false;
hr = CoCreateInstance(
CLSID_WICImagingFactory1,
nullptr,
CLSCTX_INPROC_SERVER,
__uuidof(IWICImagingFactory),
(LPVOID*)&g_Factory
);
if (FAILED(hr))
{
g_Factory = nullptr;
return nullptr;
}
}
#else
HRESULT hr = CoCreateInstance(
CLSID_WICImagingFactory,
nullptr,
CLSCTX_INPROC_SERVER,
__uuidof(IWICImagingFactory),
(LPVOID*)&g_Factory
);
g_WIC2 = false;
if (FAILED(hr))
{
g_Factory = nullptr;
return nullptr;
}
#endif
iswic2 = g_WIC2;
return g_Factory;
}
//-------------------------------------------------------------------------------------
// Optional initializer for WIC factory
//-------------------------------------------------------------------------------------
void SetWICFactory(_In_opt_ IWICImagingFactory* pWIC)
{
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(_uuidof(IWICImagingFactory2), reinterpret_cast<void**>(wic2.GetAddressOf()));
if (SUCCEEDED(hr))
{
iswic2 = true;
}
#endif
pWIC->AddRef();
}
g_WIC2 = iswic2;
std::swap(pWIC, g_Factory);
if ( pWIC )
pWIC->Release();
}
//=====================================================================================
// DXGI Format Utilities
//=====================================================================================
//-------------------------------------------------------------------------------------
_Use_decl_annotations_
bool IsPacked(DXGI_FORMAT fmt)
{
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 IsVideo(DXGI_FORMAT fmt)
{
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 IsPlanar(DXGI_FORMAT fmt)
{
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 IsDepthStencil(DXGI_FORMAT fmt)
{
switch( static_cast<int>(fmt) )
{
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_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 IsTypeless(DXGI_FORMAT fmt, bool partialTypeless)
{
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 HasAlpha(DXGI_FORMAT fmt)
{
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:
return true;
default:
return false;
}
}
//-------------------------------------------------------------------------------------
// Returns bits-per-pixel for a given DXGI format, or 0 on failure
//-------------------------------------------------------------------------------------
_Use_decl_annotations_
size_t BitsPerPixel( DXGI_FORMAT fmt )
{
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:
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_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;
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:
return 8;
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 BitsPerColor( DXGI_FORMAT fmt )
{
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:
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_
void ComputePitch( DXGI_FORMAT fmt, size_t width, size_t height,
size_t& rowPitch, size_t& slicePitch, DWORD flags )
{
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));
{
size_t nbw = std::max<size_t>( 1, (width + 3) / 4 );
size_t nbh = std::max<size_t>( 1, (height + 3) / 4 );
rowPitch = nbw * 8;
slicePitch = rowPitch * 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));
{
size_t nbw = std::max<size_t>( 1, (width + 3) / 4 );
size_t nbh = std::max<size_t>( 1, (height + 3) / 4 );
rowPitch = nbw * 16;
slicePitch = rowPitch * nbh;
}
break;
case DXGI_FORMAT_R8G8_B8G8_UNORM:
case DXGI_FORMAT_G8R8_G8B8_UNORM:
case DXGI_FORMAT_YUY2:
assert(IsPacked(fmt));
rowPitch = ( ( width + 1 ) >> 1 ) * 4;
slicePitch = rowPitch * height;
break;
case DXGI_FORMAT_Y210:
case DXGI_FORMAT_Y216:
assert(IsPacked(fmt));
rowPitch = ( ( width + 1 ) >> 1 ) * 8;
slicePitch = rowPitch * height;
break;
case DXGI_FORMAT_NV12:
case DXGI_FORMAT_420_OPAQUE:
assert(IsPlanar(fmt));
rowPitch = ( ( width + 1 ) >> 1 ) * 2;
slicePitch = rowPitch * ( height + ( ( height + 1 ) >> 1 ) );
break;
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:
assert(IsPlanar(fmt));
rowPitch = ( ( width + 1 ) >> 1 ) * 4;
slicePitch = rowPitch * ( height + ( ( height + 1 ) >> 1 ) );
break;
case DXGI_FORMAT_NV11:
assert(IsPlanar(fmt));
rowPitch = ( ( width + 3 ) >> 2 ) * 4;
slicePitch = rowPitch * height * 2;
break;
case WIN10_DXGI_FORMAT_P208:
assert(IsPlanar(fmt));
rowPitch = ( ( width + 1 ) >> 1 ) * 2;
slicePitch = rowPitch * height * 2;
break;
case WIN10_DXGI_FORMAT_V208:
assert(IsPlanar(fmt));
rowPitch = width;
slicePitch = rowPitch * ( height + ( ( ( height + 1 ) >> 1 ) * 2 ) );
break;
case WIN10_DXGI_FORMAT_V408:
assert(IsPlanar(fmt));
rowPitch = width;
slicePitch = rowPitch * ( height + ( ( height >> 1 ) * 4 ) );
break;
default:
assert( IsValid(fmt) );
assert( !IsCompressed(fmt) && !IsPacked(fmt) && !IsPlanar(fmt) );
{
size_t bpp;
if ( flags & CP_FLAGS_24BPP )
bpp = 24;
else if ( flags & CP_FLAGS_16BPP )
bpp = 16;
else if ( flags & CP_FLAGS_8BPP )
bpp = 8;
else
bpp = BitsPerPixel( fmt );
if ( flags & ( CP_FLAGS_LEGACY_DWORD | CP_FLAGS_PARAGRAPH | CP_FLAGS_YMM | CP_FLAGS_ZMM | CP_FLAGS_PAGE4K ) )
{
if ( flags & CP_FLAGS_PAGE4K )
{
rowPitch = ( ( width * bpp + 32767 ) / 32768 ) * 4096;
slicePitch = rowPitch * height;