Win8 DirectX 实现木箱镜像（整理版）

#include "pch.h" //-------------------------------------------------------------------------------------- // File: WICTextureLoader.cpp // // Function for loading a WIC image and creating a Direct3D 11 runtime texture for it // (auto-generating mipmaps if possible) // // Note: Assumes application has already called CoInitializeEx // // Warning: CreateWICTexture* functions are not thread-safe if given a d3dContext instance for // auto-gen mipmap support. // // Note these functions are useful for images created as simple 2D textures. For // more complex resources, DDSTextureLoader is an excellent light-weight runtime loader. // For a full-featured DDS file reader, writer, and texture processing pipeline see // the 'Texconv' sample and the 'DirectXTex' library. // // 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 // http://go.microsoft.com/fwlink/?LinkId=248929 //-------------------------------------------------------------------------------------- // We could load multi-frame images (TIFF/GIF) into a texture array. // For now, we just load the first frame (note: DirectXTex supports multi-frame images) #include <dxgiformat.h> #include <assert.h> #pragma warning(push) #pragma warning(disable : 4005) #include <wincodec.h> #pragma warning(pop) #include <memory> #include "WICTextureLoader.h" #if (_WIN32_WINNT >= 0x0602 /*_WIN32_WINNT_WIN8*/) && !defined(DXGI_1_2_FORMATS) #define DXGI_1_2_FORMATS #endif #if defined(_DEBUG) || defined(PROFILE) #pragma comment(lib,"dxguid.lib") #endif //--------------------------------------------------------------------------------- template<class T> class ScopedObject { public: explicit ScopedObject( T *p = 0 ) : _pointer(p) {} ~ScopedObject() { if ( _pointer ) { _pointer->Release(); _pointer = nullptr; } } bool IsNull() const { return (!_pointer); } T& operator*() { return *_pointer; } T* operator->() { return _pointer; } T** operator&() { return &_pointer; } void Reset(T *p = 0) { if ( _pointer ) { _pointer->Release(); } _pointer = p; } T* Get() const { return _pointer; } private: ScopedObject(const ScopedObject&); ScopedObject& operator=(const ScopedObject&); T* _pointer; }; //-------------------------------------------------------------------------------------- template<UINT TNameLength> inline void SetDebugObjectName(_In_ ID3D11DeviceChild* resource, _In_ const char (&name)[TNameLength]) { #if defined(_DEBUG) || defined(PROFILE) resource->SetPrivateData(WKPDID_D3DDebugObjectName, TNameLength - 1, name); #endif } //------------------------------------------------------------------------------------- // WIC Pixel Format Translation Data //------------------------------------------------------------------------------------- struct WICTranslate { GUID wic; DXGI_FORMAT format; }; static WICTranslate g_WICFormats[] = { { GUID_WICPixelFormat128bppRGBAFloat, DXGI_FORMAT_R32G32B32A32_FLOAT }, { GUID_WICPixelFormat64bppRGBAHalf, DXGI_FORMAT_R16G16B16A16_FLOAT }, { GUID_WICPixelFormat64bppRGBA, DXGI_FORMAT_R16G16B16A16_UNORM }, { GUID_WICPixelFormat32bppRGBA, DXGI_FORMAT_R8G8B8A8_UNORM }, { GUID_WICPixelFormat32bppBGRA, DXGI_FORMAT_B8G8R8A8_UNORM }, // DXGI 1.1 { GUID_WICPixelFormat32bppBGR, DXGI_FORMAT_B8G8R8X8_UNORM }, // DXGI 1.1 { GUID_WICPixelFormat32bppRGBA1010102XR, DXGI_FORMAT_R10G10B10_XR_BIAS_A2_UNORM }, // DXGI 1.1 { GUID_WICPixelFormat32bppRGBA1010102, DXGI_FORMAT_R10G10B10A2_UNORM }, { GUID_WICPixelFormat32bppRGBE, DXGI_FORMAT_R9G9B9E5_SHAREDEXP }, #ifdef DXGI_1_2_FORMATS { GUID_WICPixelFormat16bppBGRA5551, DXGI_FORMAT_B5G5R5A1_UNORM }, { GUID_WICPixelFormat16bppBGR565, DXGI_FORMAT_B5G6R5_UNORM }, #endif // DXGI_1_2_FORMATS { GUID_WICPixelFormat32bppGrayFloat, DXGI_FORMAT_R32_FLOAT }, { GUID_WICPixelFormat16bppGrayHalf, DXGI_FORMAT_R16_FLOAT }, { GUID_WICPixelFormat16bppGray, DXGI_FORMAT_R16_UNORM }, { GUID_WICPixelFormat8bppGray, DXGI_FORMAT_R8_UNORM }, { GUID_WICPixelFormat8bppAlpha, DXGI_FORMAT_A8_UNORM }, }; //------------------------------------------------------------------------------------- // WIC Pixel Format nearest conversion table //------------------------------------------------------------------------------------- struct WICConvert { GUID source; GUID target; }; static WICConvert g_WICConvert[] = { // Note target GUID in this conversion table must be one of those directly supported formats (above). { GUID_WICPixelFormatBlackWhite, GUID_WICPixelFormat8bppGray }, // DXGI_FORMAT_R8_UNORM { GUID_WICPixelFormat1bppIndexed, GUID_WICPixelFormat32bppRGBA }, // DXGI_FORMAT_R8G8B8A8_UNORM { GUID_WICPixelFormat2bppIndexed, GUID_WICPixelFormat32bppRGBA }, // DXGI_FORMAT_R8G8B8A8_UNORM { GUID_WICPixelFormat4bppIndexed, GUID_WICPixelFormat32bppRGBA }, // DXGI_FORMAT_R8G8B8A8_UNORM { GUID_WICPixelFormat8bppIndexed, GUID_WICPixelFormat32bppRGBA }, // DXGI_FORMAT_R8G8B8A8_UNORM { GUID_WICPixelFormat2bppGray, GUID_WICPixelFormat8bppGray }, // DXGI_FORMAT_R8_UNORM { GUID_WICPixelFormat4bppGray, GUID_WICPixelFormat8bppGray }, // DXGI_FORMAT_R8_UNORM { GUID_WICPixelFormat16bppGrayFixedPoint, GUID_WICPixelFormat16bppGrayHalf }, // DXGI_FORMAT_R16_FLOAT { GUID_WICPixelFormat32bppGrayFixedPoint, GUID_WICPixelFormat32bppGrayFloat }, // DXGI_FORMAT_R32_FLOAT #ifdef DXGI_1_2_FORMATS { GUID_WICPixelFormat16bppBGR555, GUID_WICPixelFormat16bppBGRA5551 }, // DXGI_FORMAT_B5G5R5A1_UNORM #else { GUID_WICPixelFormat16bppBGR555, GUID_WICPixelFormat32bppRGBA }, // DXGI_FORMAT_R8G8B8A8_UNORM { GUID_WICPixelFormat16bppBGRA5551, GUID_WICPixelFormat32bppRGBA }, // DXGI_FORMAT_R8G8B8A8_UNORM { GUID_WICPixelFormat16bppBGR565, GUID_WICPixelFormat32bppRGBA }, // DXGI_FORMAT_R8G8B8A8_UNORM #endif // DXGI_1_2_FORMATS { GUID_WICPixelFormat32bppBGR101010, GUID_WICPixelFormat32bppRGBA1010102 }, // DXGI_FORMAT_R10G10B10A2_UNORM { GUID_WICPixelFormat24bppBGR, GUID_WICPixelFormat32bppRGBA }, // DXGI_FORMAT_R8G8B8A8_UNORM { GUID_WICPixelFormat24bppRGB, GUID_WICPixelFormat32bppRGBA }, // DXGI_FORMAT_R8G8B8A8_UNORM { GUID_WICPixelFormat32bppPBGRA, GUID_WICPixelFormat32bppRGBA }, // DXGI_FORMAT_R8G8B8A8_UNORM { GUID_WICPixelFormat32bppPRGBA, GUID_WICPixelFormat32bppRGBA }, // DXGI_FORMAT_R8G8B8A8_UNORM { GUID_WICPixelFormat48bppRGB, GUID_WICPixelFormat64bppRGBA }, // DXGI_FORMAT_R16G16B16A16_UNORM { GUID_WICPixelFormat48bppBGR, GUID_WICPixelFormat64bppRGBA }, // DXGI_FORMAT_R16G16B16A16_UNORM { GUID_WICPixelFormat64bppBGRA, GUID_WICPixelFormat64bppRGBA }, // DXGI_FORMAT_R16G16B16A16_UNORM { GUID_WICPixelFormat64bppPRGBA, GUID_WICPixelFormat64bppRGBA }, // DXGI_FORMAT_R16G16B16A16_UNORM { GUID_WICPixelFormat64bppPBGRA, GUID_WICPixelFormat64bppRGBA }, // DXGI_FORMAT_R16G16B16A16_UNORM { GUID_WICPixelFormat48bppRGBFixedPoint, GUID_WICPixelFormat64bppRGBAHalf }, // DXGI_FORMAT_R16G16B16A16_FLOAT { GUID_WICPixelFormat48