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255f146f14
Backed out changeset 4ff99aab3ee8 (bug 1632249) Backed out changeset d5b7fe789001 (bug 1632249) Backed out changeset 64fbb616a0f3 (bug 1632249) Backed out changeset 6f19f43e0a0b (bug 1632249) Backed out changeset 073302d26c5e (bug 1632249) Backed out changeset 7c94d37c446e (bug 1632249) Backed out changeset 204b899f436d (bug 1632249)
78 lines
2.4 KiB
C++
78 lines
2.4 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 GFX_COPYABLECANVASRENDERER_H
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#define GFX_COPYABLECANVASRENDERER_H
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#include <stdint.h> // for uint32_t
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#include "CanvasRenderer.h"
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#include "GLContextTypes.h" // for GLContext
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#include "gfxContext.h" // for gfxContext, etc
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#include "gfxTypes.h"
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#include "gfxPlatform.h" // for gfxImageFormat
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#include "mozilla/Assertions.h" // for MOZ_ASSERT, etc
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#include "mozilla/Preferences.h" // for Preferences
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#include "mozilla/RefPtr.h" // for RefPtr
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#include "mozilla/gfx/2D.h" // for DrawTarget
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#include "mozilla/mozalloc.h" // for operator delete, etc
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#include "nsISupportsImpl.h" // for MOZ_COUNT_CTOR, etc
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namespace mozilla {
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namespace gl {
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class SharedSurface;
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} // namespace gl
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namespace layers {
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/**
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* A shared CanvasRenderer implementation that supports copying
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* its contents into a gfxASurface using RebackSurface.
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*/
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class CopyableCanvasRenderer : public CanvasRenderer {
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public:
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CopyableCanvasRenderer();
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virtual ~CopyableCanvasRenderer();
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public:
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void Initialize(const CanvasInitializeData& aData) override;
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bool IsDataValid(const CanvasInitializeData& aData) override;
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void ClearCachedResources() override;
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void Destroy() override;
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CopyableCanvasRenderer* AsCopyableCanvasRenderer() override { return this; }
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bool NeedsYFlip() const { return mOriginPos == gl::OriginPos::BottomLeft; }
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bool HasGLContext() const { return !!mGLContext; }
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bool IsOpaque() const { return mOpaque; }
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PersistentBufferProvider* GetBufferProvider() { return mBufferProvider; }
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already_AddRefed<gfx::SourceSurface> ReadbackSurface();
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protected:
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RefPtr<gl::GLContext> mGLContext;
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RefPtr<PersistentBufferProvider> mBufferProvider;
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RefPtr<AsyncCanvasRenderer> mAsyncRenderer;
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RefPtr<OOPCanvasRenderer> mOOPRenderer;
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bool mIsAlphaPremultiplied;
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gl::OriginPos mOriginPos;
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bool mOpaque;
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RefPtr<gfx::DataSourceSurface> mCachedTempSurface;
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gfx::DataSourceSurface* GetTempSurface(const gfx::IntSize& aSize,
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const gfx::SurfaceFormat aFormat);
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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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