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authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
commit5f8de423f190bbb79a62f804151bc24824fa32d8 (patch)
tree10027f336435511475e392454359edea8e25895d /gfx/layers/CopyableCanvasLayer.h
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
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Add m-esr52 at 52.6.0
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diff --git a/gfx/layers/CopyableCanvasLayer.h b/gfx/layers/CopyableCanvasLayer.h
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+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef GFX_COPYABLECANVASLAYER_H
+#define GFX_COPYABLECANVASLAYER_H
+
+#include <stdint.h> // for uint32_t
+#include "GLContextTypes.h" // for GLContext
+#include "Layers.h" // for CanvasLayer, etc
+#include "gfxContext.h" // for gfxContext, etc
+#include "gfxTypes.h"
+#include "gfxPlatform.h" // for gfxImageFormat
+#include "mozilla/Assertions.h" // for MOZ_ASSERT, etc
+#include "mozilla/Preferences.h" // for Preferences
+#include "mozilla/RefPtr.h" // for RefPtr
+#include "mozilla/gfx/2D.h" // for DrawTarget
+#include "mozilla/mozalloc.h" // for operator delete, etc
+#include "nsISupportsImpl.h" // for MOZ_COUNT_CTOR, etc
+
+namespace mozilla {
+
+namespace gl {
+class SharedSurface;
+} // namespace gl
+
+namespace layers {
+
+/**
+ * A shared CanvasLayer implementation that supports copying
+ * its contents into a gfxASurface using UpdateSurface.
+ */
+class CopyableCanvasLayer : public CanvasLayer
+{
+public:
+ CopyableCanvasLayer(LayerManager* aLayerManager, void *aImplData);
+
+protected:
+ virtual ~CopyableCanvasLayer();
+
+public:
+ virtual void Initialize(const Data& aData) override;
+
+ virtual bool IsDataValid(const Data& aData) override;
+
+ bool IsGLLayer() { return !!mGLContext; }
+
+protected:
+ RefPtr<gl::GLContext> mGLContext;
+ RefPtr<PersistentBufferProvider> mBufferProvider;
+ UniquePtr<gl::SharedSurface> mGLFrontbuffer;
+
+ bool mIsAlphaPremultiplied;
+ gl::OriginPos mOriginPos;
+ bool mIsMirror;
+
+ RefPtr<gfx::DataSourceSurface> mCachedTempSurface;
+
+ gfx::DataSourceSurface* GetTempSurface(const gfx::IntSize& aSize,
+ const gfx::SurfaceFormat aFormat);
+};
+
+} // namespace layers
+} // namespace mozilla
+
+#endif