зеркало из https://github.com/mozilla/gecko-dev.git
118 строки
3.6 KiB
C++
118 строки
3.6 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_RENDERCOMPOSITOR_H
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#define MOZILLA_GFX_RENDERCOMPOSITOR_H
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#include "mozilla/RefPtr.h"
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#include "mozilla/UniquePtr.h"
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#include "mozilla/webrender/WebRenderTypes.h"
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#include "Units.h"
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namespace mozilla {
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namespace gl {
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class GLContext;
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}
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namespace layers {
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class SyncObjectHost;
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} // namespace layers
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namespace widget {
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class CompositorWidget;
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}
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namespace wr {
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class RenderCompositor {
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public:
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static UniquePtr<RenderCompositor> Create(
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RefPtr<widget::CompositorWidget>&& aWidget);
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RenderCompositor(RefPtr<widget::CompositorWidget>&& aWidget);
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virtual ~RenderCompositor();
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virtual bool BeginFrame() = 0;
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// Called to notify the RenderCompositor that all of the commands for a frame
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// have been pushed to the queue.
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// @return a RenderedFrameId for the frame
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virtual RenderedFrameId EndFrame(
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const FfiVec<DeviceIntRect>& aDirtyRects) = 0;
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// Returns false when waiting gpu tasks is failed.
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// It might happen when rendering context is lost.
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virtual bool WaitForGPU() { return true; }
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// Check for and return the last completed frame.
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// @return the last (highest) completed RenderedFrameId
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virtual RenderedFrameId GetLastCompletedFrameId() {
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return mLatestRenderFrameId.Prev();
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}
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virtual void Pause() = 0;
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virtual bool Resume() = 0;
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// Called when WR rendering is skipped
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virtual void Update() {}
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virtual gl::GLContext* gl() const { return nullptr; }
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virtual bool MakeCurrent();
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virtual bool UseANGLE() const { return false; }
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virtual bool UseDComp() const { return false; }
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virtual bool UseTripleBuffering() const { return false; }
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virtual LayoutDeviceIntSize GetBufferSize() = 0;
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widget::CompositorWidget* GetWidget() const { return mWidget; }
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layers::SyncObjectHost* GetSyncObject() const { return mSyncObject.get(); }
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virtual bool IsContextLost();
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virtual bool ShouldUseNativeCompositor() { return false; }
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virtual uint32_t GetMaxUpdateRects() { return 0; }
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// Interface for wr::Compositor
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virtual void CompositorBeginFrame() {}
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virtual void CompositorEndFrame() {}
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virtual void Bind(wr::NativeSurfaceId aId, wr::DeviceIntPoint* aOffset,
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uint32_t* aFboId, wr::DeviceIntRect aDirtyRect) {}
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virtual void Unbind() {}
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virtual void CreateSurface(wr::NativeSurfaceId aId, wr::DeviceIntSize aSize,
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bool aIsOpaque) {}
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virtual void DestroySurface(NativeSurfaceId aId) {}
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virtual void AddSurface(wr::NativeSurfaceId aId, wr::DeviceIntPoint aPosition,
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wr::DeviceIntRect aClipRect) {}
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// Interface for partial present
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virtual bool UsePartialPresent() { return false; }
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virtual bool RequestFullRender() { return false; }
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virtual uint32_t GetMaxPartialPresentRects() { return 0; }
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// Whether the surface origin is top-left.
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virtual bool SurfaceOriginIsTopLeft() { return false; }
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protected:
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// We default this to 2, so that mLatestRenderFrameId.Prev() is always valid.
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RenderedFrameId mLatestRenderFrameId = RenderedFrameId{2};
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RenderedFrameId GetNextRenderFrameId() {
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mLatestRenderFrameId = mLatestRenderFrameId.Next();
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return mLatestRenderFrameId;
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}
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RefPtr<widget::CompositorWidget> mWidget;
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RefPtr<layers::SyncObjectHost> mSyncObject;
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};
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} // namespace wr
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} // namespace mozilla
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#endif
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