зеркало из https://github.com/mozilla/gecko-dev.git
66 строки
1.7 KiB
C++
66 строки
1.7 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef MOZILLA_GFX_DCLAYER_TREE_H
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#define MOZILLA_GFX_DCLAYER_TREE_H
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#include <windows.h>
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#include "mozilla/RefPtr.h"
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#include "mozilla/UniquePtr.h"
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struct IDCompositionDevice2;
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struct IDCompositionTarget;
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struct IDCompositionVisual2;
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struct IDXGISwapChain1;
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namespace mozilla {
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namespace wr {
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// Currently, MinGW build environment does not handle IDCompositionDesktopDevice
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// and IDCompositionDevice2
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#if !defined(__MINGW32__)
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/**
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* DCLayerTree manages direct composition layers.
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* It does not manage gecko's layers::Layer.
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*/
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class DCLayerTree {
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public:
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static UniquePtr<DCLayerTree> Create(HWND aHwnd);
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explicit DCLayerTree(IDCompositionDevice2* aCompositionDevice);
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~DCLayerTree();
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void SetDefaultSwapChain(IDXGISwapChain1* aSwapChain);
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void MaybeUpdateDebug();
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protected:
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bool Initialize(HWND aHwnd);
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bool MaybeUpdateDebugCounter();
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bool MaybeUpdateDebugVisualRedrawRegions();
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RefPtr<IDCompositionDevice2> mCompositionDevice;
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RefPtr<IDCompositionTarget> mCompositionTarget;
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RefPtr<IDCompositionVisual2> mRootVisual;
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RefPtr<IDCompositionVisual2> mDefaultSwapChainVisual;
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bool mDebugCounter;
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bool mDebugVisualRedrawRegions;
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};
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#else
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class DCLayerTree {
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public:
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static UniquePtr<DCLayerTree> Create(HWND aHwnd) { return nullptr; }
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void SetDefaultSwapChain(IDXGISwapChain1* aSwapChain) {}
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void MaybeUpdateDebug() {}
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};
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#endif
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} // namespace wr
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} // namespace mozilla
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#endif
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