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74 lines
2.3 KiB
74 lines
2.3 KiB
/*
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* Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#ifndef MODULES_DESKTOP_CAPTURE_WIN_DXGI_TEXTURE_H_
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#define MODULES_DESKTOP_CAPTURE_WIN_DXGI_TEXTURE_H_
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#include <d3d11.h>
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#include <dxgi1_2.h>
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#include <memory>
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#include "modules/desktop_capture/desktop_frame.h"
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#include "modules/desktop_capture/desktop_geometry.h"
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namespace webrtc {
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class DesktopRegion;
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// A texture copied or mapped from a DXGI_OUTDUPL_FRAME_INFO and IDXGIResource.
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class DxgiTexture {
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public:
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// Creates a DxgiTexture instance, which represents the |desktop_size| area of
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// entire screen -- usually a monitor on the system.
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DxgiTexture();
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virtual ~DxgiTexture();
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// Copies selected regions of a frame represented by frame_info and resource.
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// Returns false if anything wrong.
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bool CopyFrom(const DXGI_OUTDUPL_FRAME_INFO& frame_info,
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IDXGIResource* resource);
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const DesktopSize& desktop_size() const { return desktop_size_; }
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uint8_t* bits() const { return static_cast<uint8_t*>(rect_.pBits); }
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int pitch() const { return static_cast<int>(rect_.Pitch); }
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// Releases the resource currently holds by this instance. Returns false if
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// anything wrong, and this instance should be deprecated in this state. bits,
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// pitch and AsDesktopFrame are only valid after a success CopyFrom() call,
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// but before Release() call.
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bool Release();
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// Returns a DesktopFrame snapshot of a DxgiTexture instance. This
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// DesktopFrame is used to copy a DxgiTexture content to another DesktopFrame
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// only. And it should not outlive its DxgiTexture instance.
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const DesktopFrame& AsDesktopFrame();
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protected:
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DXGI_MAPPED_RECT* rect();
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virtual bool CopyFromTexture(const DXGI_OUTDUPL_FRAME_INFO& frame_info,
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ID3D11Texture2D* texture) = 0;
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virtual bool DoRelease() = 0;
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private:
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DXGI_MAPPED_RECT rect_ = {0};
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DesktopSize desktop_size_;
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std::unique_ptr<DesktopFrame> frame_;
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};
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} // namespace webrtc
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#endif // MODULES_DESKTOP_CAPTURE_WIN_DXGI_TEXTURE_H_
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