207 lines
8.6 KiB
C++
207 lines
8.6 KiB
C++
//-------------------------------------------------------------------------------------
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// DirectXTexp.h
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//
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// DirectX Texture Library - Private header
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//
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// THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF
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// ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO
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// THE IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A
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// PARTICULAR PURPOSE.
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//
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// Copyright (c) Microsoft Corporation. All rights reserved.
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//
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// http://go.microsoft.com/fwlink/?LinkId=248926
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//-------------------------------------------------------------------------------------
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#if defined(_MSC_VER) && (_MSC_VER > 1000)
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#pragma once
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#endif
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#define NOMINMAX
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#include <windows.h>
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#include <directxmath.h>
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#include <directxpackedvector.h>
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#include <assert.h>
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#include <malloc.h>
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#include <memory>
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#include <vector>
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#include <stdlib.h>
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#include <search.h>
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#include <ole2.h>
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#include "directxtex.h"
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#pragma warning(push)
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#pragma warning(disable : 4005)
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#include <wincodec.h>
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#pragma warning(pop)
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#include "scoped.h"
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struct IWICImagingFactory;
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#define TEX_FILTER_MASK 0xF00000
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namespace DirectX
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{
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//---------------------------------------------------------------------------------
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// WIC helper functions
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DXGI_FORMAT _WICToDXGI( _In_ const GUID& guid );
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bool _DXGIToWIC( _In_ DXGI_FORMAT format, _Out_ GUID& guid, _In_ bool ignoreRGBvsBGR = false );
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DWORD _CheckWICColorSpace( _In_ const GUID& sourceGUID, _In_ const GUID& targetGUID );
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IWICImagingFactory* _GetWIC();
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bool _IsWIC2();
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inline WICBitmapDitherType _GetWICDither( _In_ DWORD flags )
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{
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static_assert( TEX_FILTER_DITHER == 0x10000, "TEX_FILTER_DITHER* flag values don't match mask" );
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static_assert( TEX_FILTER_DITHER == WIC_FLAGS_DITHER, "TEX_FILTER_DITHER* should match WIC_FLAGS_DITHER*" );
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static_assert( TEX_FILTER_DITHER_DIFFUSION == WIC_FLAGS_DITHER_DIFFUSION, "TEX_FILTER_DITHER* should match WIC_FLAGS_DITHER*" );
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switch( flags & 0xF0000 )
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{
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case TEX_FILTER_DITHER:
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return WICBitmapDitherTypeOrdered4x4;
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case TEX_FILTER_DITHER_DIFFUSION:
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return WICBitmapDitherTypeErrorDiffusion;
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default:
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return WICBitmapDitherTypeNone;
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}
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}
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inline WICBitmapInterpolationMode _GetWICInterp( _In_ DWORD flags )
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{
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static_assert( TEX_FILTER_POINT == 0x100000, "TEX_FILTER_ flag values don't match TEX_FILTER_MASK" );
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static_assert( TEX_FILTER_POINT == WIC_FLAGS_FILTER_POINT, "TEX_FILTER_* flags should match WIC_FLAGS_FILTER_*" );
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static_assert( TEX_FILTER_LINEAR == WIC_FLAGS_FILTER_LINEAR, "TEX_FILTER_* flags should match WIC_FLAGS_FILTER_*" );
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static_assert( TEX_FILTER_CUBIC == WIC_FLAGS_FILTER_CUBIC, "TEX_FILTER_* flags should match WIC_FLAGS_FILTER_*" );
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static_assert( TEX_FILTER_FANT == WIC_FLAGS_FILTER_FANT, "TEX_FILTER_* flags should match WIC_FLAGS_FILTER_*" );
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switch( flags & TEX_FILTER_MASK )
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{
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case TEX_FILTER_POINT:
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return WICBitmapInterpolationModeNearestNeighbor;
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case TEX_FILTER_LINEAR:
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return WICBitmapInterpolationModeLinear;
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case TEX_FILTER_CUBIC:
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return WICBitmapInterpolationModeCubic;
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case TEX_FILTER_FANT:
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default:
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return WICBitmapInterpolationModeFant;
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}
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}
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//---------------------------------------------------------------------------------
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// Image helper functions
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void _DetermineImageArray( _In_ const TexMetadata& metadata, _In_ DWORD cpFlags,
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_Out_ size_t& nImages, _Out_ size_t& pixelSize );
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_Success_(return != false)
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bool _SetupImageArray( _In_reads_bytes_(pixelSize) uint8_t *pMemory, _In_ size_t pixelSize,
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_In_ const TexMetadata& metadata, _In_ DWORD cpFlags,
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_Out_writes_(nImages) Image* images, _In_ size_t nImages );
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//---------------------------------------------------------------------------------
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// Conversion helper functions
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enum TEXP_SCANLINE_FLAGS
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{
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TEXP_SCANLINE_NONE = 0,
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TEXP_SCANLINE_SETALPHA = 0x1, // Set alpha channel to known opaque value
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TEXP_SCANLINE_LEGACY = 0x2, // Enables specific legacy format conversion cases
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};
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enum CONVERT_FLAGS
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{
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CONVF_FLOAT = 0x1,
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CONVF_UNORM = 0x2,
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CONVF_UINT = 0x4,
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CONVF_SNORM = 0x8,
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CONVF_SINT = 0x10,
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CONVF_DEPTH = 0x20,
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CONVF_STENCIL = 0x40,
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CONVF_SHAREDEXP = 0x80,
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CONVF_BGR = 0x100,
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CONVF_XR = 0x200,
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CONVF_PACKED = 0x400,
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CONVF_BC = 0x800,
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CONVF_R = 0x10000,
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CONVF_G = 0x20000,
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CONVF_B = 0x40000,
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CONVF_A = 0x80000,
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CONVF_RGB_MASK = 0x70000,
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CONVF_RGBA_MASK = 0xF0000,
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};
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DWORD _GetConvertFlags( _In_ DXGI_FORMAT format );
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void _CopyScanline( _When_(pDestination == pSource, _Inout_updates_bytes_(outSize))
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_When_(pDestination != pSource, _Out_writes_bytes_(outSize))
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LPVOID pDestination, _In_ size_t outSize,
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_In_reads_bytes_(inSize) LPCVOID pSource, _In_ size_t inSize,
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_In_ DXGI_FORMAT format, _In_ DWORD flags );
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void _SwizzleScanline( _When_(pDestination == pSource, _In_)
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_When_(pDestination != pSource, _Out_writes_bytes_(outSize))
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LPVOID pDestination, _In_ size_t outSize,
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_In_reads_bytes_(inSize) LPCVOID pSource, _In_ size_t inSize,
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_In_ DXGI_FORMAT format, _In_ DWORD flags );
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_Success_(return != false)
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bool _ExpandScanline( _Out_writes_bytes_(outSize) LPVOID pDestination, _In_ size_t outSize,
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_In_ DXGI_FORMAT outFormat,
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_In_reads_bytes_(inSize) LPCVOID pSource, _In_ size_t inSize,
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_In_ DXGI_FORMAT inFormat, _In_ DWORD flags );
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_Success_(return != false)
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bool _LoadScanline( _Out_writes_(count) XMVECTOR* pDestination, _In_ size_t count,
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_In_reads_bytes_(size) LPCVOID pSource, _In_ size_t size, _In_ DXGI_FORMAT format );
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_Success_(return != false)
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bool _LoadScanlineLinear( _Out_writes_(count) XMVECTOR* pDestination, _In_ size_t count,
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_In_reads_bytes_(size) LPCVOID pSource, _In_ size_t size, _In_ DXGI_FORMAT format, _In_ DWORD flags );
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_Success_(return != false)
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bool _StoreScanline( LPVOID pDestination, _In_ size_t size, _In_ DXGI_FORMAT format,
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_In_reads_(count) const XMVECTOR* pSource, _In_ size_t count, _In_ float threshold = 0 );
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_Success_(return != false)
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bool _StoreScanlineLinear( LPVOID pDestination, _In_ size_t size, _In_ DXGI_FORMAT format,
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_Inout_updates_all_(count) XMVECTOR* pSource, _In_ size_t count, _In_ DWORD flags );
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_Success_(return != false)
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bool _StoreScanlineDither( LPVOID pDestination, _In_ size_t size, _In_ DXGI_FORMAT format,
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_Inout_updates_all_(count) XMVECTOR* pSource, _In_ size_t count, _In_ float threshold, size_t y, size_t z,
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_Inout_updates_all_opt_(count+2) XMVECTOR* pDiffusionErrors );
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HRESULT _ConvertToR32G32B32A32( _In_ const Image& srcImage, _Inout_ ScratchImage& image );
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HRESULT _ConvertFromR32G32B32A32( _In_ const Image& srcImage, _In_ const Image& destImage );
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HRESULT _ConvertFromR32G32B32A32( _In_ const Image& srcImage, _In_ DXGI_FORMAT format, _Inout_ ScratchImage& image );
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HRESULT _ConvertFromR32G32B32A32( _In_reads_(nimages) const Image* srcImages, _In_ size_t nimages, _In_ const TexMetadata& metadata,
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_In_ DXGI_FORMAT format, _Out_ ScratchImage& result );
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void _ConvertScanline( _Inout_updates_all_(count) XMVECTOR* pBuffer, _In_ size_t count,
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_In_ DXGI_FORMAT outFormat, _In_ DXGI_FORMAT inFormat, _In_ DWORD flags );
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//---------------------------------------------------------------------------------
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// DDS helper functions
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HRESULT _EncodeDDSHeader( _In_ const TexMetadata& metadata, DWORD flags,
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_Out_writes_bytes_to_opt_(maxsize, required) LPVOID pDestination, _In_ size_t maxsize, _Out_ size_t& required );
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}; // namespace
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