--- /dev/null
+//-------------------------------------------------------------------------------------
+// DirectXTexp.h
+//
+// DirectX Texture Library - Private header
+//
+// 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
+//-------------------------------------------------------------------------------------
+
+#if defined(_MSC_VER) && (_MSC_VER > 1000)
+#pragma once
+#endif
+
+#define NOMINMAX
+#include <windows.h>
+
+#ifdef USE_XNAMATH
+#include <xnamath.h>
+#else
+#include <directxmath.h>
+#include <directxpackedvector.h>
+#endif
+
+#include <assert.h>
+
+#include <malloc.h>
+#include <memory>
+
+#include <vector>
+
+#include <stdlib.h>
+#include <search.h>
+
+#include <ole2.h>
+
+#if (_WIN32_WINNT >= 0x0602 /*_WIN32_WINNT_WIN8*/) || defined(_WIN7_PLATFORM_UPDATE)
+#include <d2d1.h>
+#endif
+
+#pragma warning(push)
+#pragma warning(disable : 4005)
+#include <wincodec.h>
+#pragma warning(pop)
+
+#if (_WIN32_WINNT >= 0x0602 /*_WIN32_WINNT_WIN8*/) && !defined(DXGI_1_2_FORMATS)
+#define DXGI_1_2_FORMATS
+#endif
+
+#include "directxtex.h"
+
+#include "scoped.h"
+
+struct IWICImagingFactory;
+
+#define TEX_FILTER_MASK 0xF00000
+
+namespace DirectX
+{
+ //---------------------------------------------------------------------------------
+ // WIC helper functions
+ DXGI_FORMAT _WICToDXGI( _In_ const GUID& guid );
+ bool _DXGIToWIC( _In_ DXGI_FORMAT format, _Out_ GUID& guid );
+
+ IWICImagingFactory* _GetWIC();
+
+ bool _IsWIC2();
+
+ inline WICBitmapDitherType _GetWICDither( _In_ DWORD flags )
+ {
+ static_assert( TEX_FILTER_DITHER == 0x10000, "TEX_FILTER_DITHER* flag values don't match mask" );
+
+ static_assert( TEX_FILTER_DITHER == WIC_FLAGS_DITHER, "TEX_FILTER_DITHER* should match WIC_FLAGS_DITHER*" );
+ static_assert( TEX_FILTER_DITHER_DIFFUSION == WIC_FLAGS_DITHER_DIFFUSION, "TEX_FILTER_DITHER* should match WIC_FLAGS_DITHER*" );
+
+ switch( flags & 0xF0000 )
+ {
+ case TEX_FILTER_DITHER:
+ return WICBitmapDitherTypeOrdered4x4;
+
+ case TEX_FILTER_DITHER_DIFFUSION:
+ return WICBitmapDitherTypeErrorDiffusion;
+
+ default:
+ return WICBitmapDitherTypeNone;
+ }
+ }
+
+ inline WICBitmapInterpolationMode _GetWICInterp( _In_ DWORD flags )
+ {
+ static_assert( TEX_FILTER_POINT == 0x100000, "TEX_FILTER_ flag values don't match TEX_FILTER_MASK" );
+
+ static_assert( TEX_FILTER_POINT == WIC_FLAGS_FILTER_POINT, "TEX_FILTER_* flags should match WIC_FLAGS_FILTER_*" );
+ static_assert( TEX_FILTER_LINEAR == WIC_FLAGS_FILTER_LINEAR, "TEX_FILTER_* flags should match WIC_FLAGS_FILTER_*" );
+ static_assert( TEX_FILTER_CUBIC == WIC_FLAGS_FILTER_CUBIC, "TEX_FILTER_* flags should match WIC_FLAGS_FILTER_*" );
+ static_assert( TEX_FILTER_FANT == WIC_FLAGS_FILTER_FANT, "TEX_FILTER_* flags should match WIC_FLAGS_FILTER_*" );
+
+ switch( flags & TEX_FILTER_MASK )
+ {
+ case TEX_FILTER_POINT:
+ return WICBitmapInterpolationModeNearestNeighbor;
+
+ case TEX_FILTER_LINEAR:
+ return WICBitmapInterpolationModeLinear;
+
+ case TEX_FILTER_CUBIC:
+ return WICBitmapInterpolationModeCubic;
+
+ case TEX_FILTER_FANT:
+ default:
+ return WICBitmapInterpolationModeFant;
+ }
+ }
+
+ //---------------------------------------------------------------------------------
+ // Image helper functions
+ void _DetermineImageArray( _In_ const TexMetadata& metadata, _In_ DWORD cpFlags,
+ _Out_ size_t& nImages, _Out_ size_t& pixelSize );
+
+ bool _SetupImageArray( _In_bytecount_(pixelSize) uint8_t *pMemory, _In_ size_t pixelSize,
+ _In_ const TexMetadata& metadata, _In_ DWORD cpFlags,
+ _Out_cap_(nImages) Image* images, _In_ size_t nImages );
+
+ //---------------------------------------------------------------------------------
+ // Conversion helper functions
+
+ enum TEXP_SCANLINE_FLAGS
+ {
+ TEXP_SCANLINE_NONE = 0,
+ TEXP_SCANLINE_SETALPHA = 0x1, // Set alpha channel to known opaque value
+ TEXP_SCANLINE_LEGACY = 0x2, // Enables specific legacy format conversion cases
+ };
+
+ enum CONVERT_FLAGS
+ {
+ CONVF_FLOAT = 0x1,
+ CONVF_UNORM = 0x2,
+ CONVF_UINT = 0x4,
+ CONVF_SNORM = 0x8,
+ CONVF_SINT = 0x10,
+ CONVF_DEPTH = 0x20,
+ CONVF_STENCIL = 0x40,
+ CONVF_SHAREDEXP = 0x80,
+ CONVF_BGR = 0x100,
+ CONVF_X2 = 0x200,
+ CONVF_PACKED = 0x400,
+ CONVF_BC = 0x800,
+ CONVF_R = 0x10000,
+ CONVF_G = 0x20000,
+ CONVF_B = 0x40000,
+ CONVF_A = 0x80000,
+ CONVF_RGB_MASK = 0x70000,
+ CONVF_RGBA_MASK = 0xF0000,
+ };
+
+ DWORD _GetConvertFlags( _In_ DXGI_FORMAT format );
+
+ void _CopyScanline( _Out_bytecap_(outSize) LPVOID pDestination, _In_ size_t outSize,
+ _In_bytecount_(inSize) LPCVOID pSource, _In_ size_t inSize,
+ _In_ DXGI_FORMAT format, _In_ DWORD flags );
+
+ void _SwizzleScanline( _Out_bytecap_(outSize) LPVOID pDestination, _In_ size_t outSize,
+ _In_bytecount_(inSize) LPCVOID pSource, _In_ size_t inSize,
+ _In_ DXGI_FORMAT format, _In_ DWORD flags );
+
+ bool _ExpandScanline( _Out_bytecap_(outSize) LPVOID pDestination, _In_ size_t outSize,
+ _In_ DXGI_FORMAT outFormat,
+ _In_bytecount_(inSize) LPCVOID pSource, _In_ size_t inSize,
+ _In_ DXGI_FORMAT inFormat, _In_ DWORD flags );
+
+ bool _LoadScanline( _Out_cap_(count) XMVECTOR* pDestination, _In_ size_t count,
+ _In_bytecount_(size) LPCVOID pSource, _In_ size_t size, _In_ DXGI_FORMAT format );
+
+ bool _StoreScanline( _Out_bytecap_(size) LPVOID pDestination, _In_ size_t size, _In_ DXGI_FORMAT format,
+ _In_count_(count) const XMVECTOR* pSource, _In_ size_t count );
+
+ HRESULT _ConvertToR32G32B32A32( _In_ const Image& srcImage, _Inout_ ScratchImage& image );
+
+ HRESULT _ConvertFromR32G32B32A32( _In_ const Image& srcImage, _In_ const Image& destImage );
+ HRESULT _ConvertFromR32G32B32A32( _In_ const Image& srcImage, _In_ DXGI_FORMAT format, _Inout_ ScratchImage& image );
+ HRESULT _ConvertFromR32G32B32A32( _In_count_(nimages) const Image* srcImages, _In_ size_t nimages, _In_ const TexMetadata& metadata,
+ _In_ DXGI_FORMAT format, _Out_ ScratchImage& result );
+
+ void _ConvertScanline( _Inout_count_(count) XMVECTOR* pBuffer, _In_ size_t count,
+ _In_ DXGI_FORMAT outFormat, _In_ DXGI_FORMAT inFormat, _In_ DWORD flags );
+
+ //---------------------------------------------------------------------------------
+ // DDS helper functions
+ HRESULT _EncodeDDSHeader( _In_ const TexMetadata& metadata, DWORD flags,
+ _Out_opt_cap_x_(maxsize) LPVOID pDestination, _In_ size_t maxsize, _Out_ size_t& required );
+
+}; // namespace