1 /* 2 * Copyright (c) 2016 The WebRTC project authors. All Rights Reserved. 3 * 4 * Use of this source code is governed by a BSD-style license 5 * that can be found in the LICENSE file in the root of the source 6 * tree. An additional intellectual property rights grant can be found 7 * in the file PATENTS. All contributing project authors may 8 * be found in the AUTHORS file in the root of the source tree. 9 */ 10 11 #ifndef MODULES_DESKTOP_CAPTURE_WIN_DXGI_TEXTURE_MAPPING_H_ 12 #define MODULES_DESKTOP_CAPTURE_WIN_DXGI_TEXTURE_MAPPING_H_ 13 14 #include <d3d11.h> 15 #include <dxgi1_2.h> 16 17 #include "modules/desktop_capture/desktop_geometry.h" 18 #include "modules/desktop_capture/desktop_region.h" 19 #include "modules/desktop_capture/win/dxgi_texture.h" 20 21 namespace webrtc { 22 23 // A DxgiTexture which directly maps bitmap from IDXGIResource. This class is 24 // used when DXGI_OUTDUPL_DESC.DesktopImageInSystemMemory is true. (This usually 25 // means the video card shares main memory with CPU, instead of having its own 26 // individual memory.) 27 class DxgiTextureMapping : public DxgiTexture { 28 public: 29 // Creates a DxgiTextureMapping instance. Caller must maintain the lifetime 30 // of input |duplication| to make sure it outlives this instance. 31 explicit DxgiTextureMapping(IDXGIOutputDuplication* duplication); 32 33 ~DxgiTextureMapping() override; 34 35 protected: 36 bool CopyFromTexture(const DXGI_OUTDUPL_FRAME_INFO& frame_info, 37 ID3D11Texture2D* texture) override; 38 39 bool DoRelease() override; 40 41 private: 42 IDXGIOutputDuplication* const duplication_; 43 }; 44 45 } // namespace webrtc 46 47 #endif // MODULES_DESKTOP_CAPTURE_WIN_DXGI_TEXTURE_MAPPING_H_ 48