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			90 lines
		
	
	
	
		
			2.9 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			90 lines
		
	
	
	
		
			2.9 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_SWGL_H
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#define MOZILLA_GFX_RENDERCOMPOSITOR_SWGL_H
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#include "mozilla/gfx/2D.h"
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#include "mozilla/webrender/RenderCompositor.h"
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namespace mozilla {
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namespace wr {
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class RenderCompositorSWGL : public RenderCompositor {
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 public:
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  static UniquePtr<RenderCompositor> Create(
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      const RefPtr<widget::CompositorWidget>& aWidget, nsACString& aError);
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  RenderCompositorSWGL(const RefPtr<widget::CompositorWidget>& aWidget,
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                       void* aContext);
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  virtual ~RenderCompositorSWGL();
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  void* swgl() const override { return mContext; }
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  bool MakeCurrent() override;
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  bool BeginFrame() override;
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  void CancelFrame() override;
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  RenderedFrameId EndFrame(const nsTArray<DeviceIntRect>& aDirtyRects) final;
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  void StartCompositing(wr::ColorF aClearColor,
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                        const wr::DeviceIntRect* aDirtyRects,
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                        size_t aNumDirtyRects,
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                        const wr::DeviceIntRect* aOpaqueRects,
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                        size_t aNumOpaqueRects) override;
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  bool UsePartialPresent() override { return true; }
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  bool RequestFullRender() override;
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  void Pause() override;
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  bool Resume() override;
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  layers::WebRenderBackend BackendType() const override {
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    return layers::WebRenderBackend::SOFTWARE;
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  }
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  layers::WebRenderCompositor CompositorType() const override {
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    return layers::WebRenderCompositor::SOFTWARE;
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  }
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  bool SurfaceOriginIsTopLeft() override { return true; }
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  LayoutDeviceIntSize GetBufferSize() override;
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  bool SupportsExternalBufferTextures() const override { return true; }
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  // Interface for wr::Compositor
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  void GetCompositorCapabilities(CompositorCapabilities* aCaps) override;
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 private:
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  void* mContext = nullptr;
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  RefPtr<gfx::DrawTarget> mDT;
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  LayoutDeviceIntRegion mDirtyRegion;
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  // Keep consistent buffer size between BeginFrame and EndFrame/CancelFrame
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  // calls to make sure we don't change buffer size during rendering.
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  Maybe<LayoutDeviceIntSize> mRenderWidgetSize;
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  RefPtr<gfx::DataSourceSurface> mSurface;
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  uint8_t* mMappedData = nullptr;
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  int32_t mMappedStride = 0;
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#ifdef MOZ_WIDGET_GTK
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  // On Wayland we need to request full render if widget size is changed
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  // because SW rendering backend reallocates and clears target surface.
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  LayoutDeviceIntSize mLastRenderWidgetSize;
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  bool mRequestFullRender = false;
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#endif
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  void ClearMappedBuffer();
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  bool AllocateMappedBuffer(const wr::DeviceIntRect* aOpaqueRects,
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                            size_t aNumOpaqueRects);
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  void CommitMappedBuffer(bool aDirty = true);
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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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