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f3d4ff499f
This patch move common canvas interfaces out of layer. So I create a
base class CanvasRenderer which move interfaces from CanvasLayer.
CopyableCanvasRenderer from CopyableCanvasLayer, ClientCanvasRenderer
from ClientCanvasLayer and WebRenderCanvasRenderer from
WebRenderCanvasLayer. And finally, WebRenderCanvasRendererSync for the
non layers free mode and WebRenderCanvasRendererAsync for the layers
free mode.
Summary all changes in this patch.
* Move class CanvasLayer::Data to CanvasRenderer.h and rename it to
CanvasInitializeData. Because this class not only use by layer but also
* Move BasicCanvasLayer::UpdateSurface to
CopyableCanvasRenderer::ReadbackSurface.
* CanvasClient::Update now accepts ShareableCanvasRenderer as parameter.
not CanvasLayer.
use by layers-free mode. Move it out of layer's class makes more sense.
* Add InitializeCanvasRenderer in the canvas related classes to
initialize CanvasRenderer without involved layer.
* All canvas layer has function "CreateCanvasRendererInternal" that
initialize corresponding CanvasRenderer.
* Description of all CanvasRenderer classes:
** CanvasRenderer: Based classes.
** CopyableCanvasRenderer: Can readback canvas content to a
SourceSurface. Use by BasicCanvasLayer.
** ShareableCanvasRenderer: Provide IPC capabilities that allow sending
canvas content over IPC. This is pure virtual class because the IPC handling is
different in different LayerManager.
** ClientCanvasRenderer: Implement IPC handling for ClientLayerManager.
Use by ClientCanvasLayer.
** WebRenderCanvasRenderer: Implement IPC handling for
WebRenderLayerManager.
** WebRenderCanvasRendererSync: Use by WebRenderCanvasLayer.
** WebRenderCanvasRendererAsync: Use by layers-free mode in WebRender.
class diagram shows below:
+--------------+
|CanvasRenderer|
+-------+------+
^
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+----------------------+
|CopyableCanvasRenderer|
+----------------------+
^
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+-----------+-----------+
|ShareableCanvasRenderer|
+-----+-----------------+
^ ^
+-------------+ +-------+
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+--------------------+ +---------+-------------+
|ClientCanvasRenderer| |WebRenderCanvasRenderer|
+--------------------+ +--------+--+-----------+
^ ^
+-----------------------+ +----+
| |
+-------------+-------------+ +-------------+--------------+
|WebRenderCanvasRendererSync| |WebRenderCanvasRendererAsync|
+---------------------------+ +----------------------------+
MozReview-Commit-ID: 5hqQ19W169r
62 lines
1.5 KiB
C++
62 lines
1.5 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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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 GFX_SHAREABLECANVASRENDERER_H
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#define GFX_SHAREABLECANVASRENDERER_H
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#include "CompositorTypes.h"
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#include "CopyableCanvasRenderer.h"
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#include "mozilla/layers/CanvasClient.h"
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namespace mozilla {
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namespace gl {
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class SurfaceFactory;
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} // namespace gl
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namespace layers {
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class ShareableCanvasRenderer : public CopyableCanvasRenderer
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{
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typedef CanvasClient::CanvasClientType CanvasClientType;
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public:
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ShareableCanvasRenderer();
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virtual ~ShareableCanvasRenderer();
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public:
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void Initialize(const CanvasInitializeData& aData) override;
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virtual CompositableForwarder* GetForwarder() = 0;
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virtual bool CreateCompositable() = 0;
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void ClearCachedResources() override;
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void Destroy() override;
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void UpdateCompositableClient();
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const TextureFlags& Flags() const { return mFlags; }
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CanvasClient* GetCanvasClient() { return mCanvasClient; }
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protected:
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bool UpdateTarget(gfx::DrawTarget* aDestTarget);
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CanvasClientType GetCanvasClientType();
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RefPtr<CanvasClient> mCanvasClient;
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UniquePtr<gl::SurfaceFactory> mFactory;
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TextureFlags mFlags;
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friend class CanvasClient2D;
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friend class CanvasClientSharedSurface;
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};
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} // namespace layers
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} // namespace mozilla
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#endif
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