mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-11-06 17:16:12 +00:00
77 lines
2.2 KiB
C++
77 lines
2.2 KiB
C++
/* -*- 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 "nsAutoPtr.h" // for nsRefPtr
|
|
#include "nsISupportsImpl.h" // for MOZ_COUNT_CTOR, etc
|
|
|
|
namespace mozilla {
|
|
namespace gl{
|
|
class SurfaceStream;
|
|
}
|
|
|
|
namespace layers {
|
|
|
|
class CanvasClientWebGL;
|
|
|
|
/**
|
|
* 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);
|
|
|
|
virtual bool IsDataValid(const Data& aData);
|
|
|
|
bool IsGLLayer() { return !!mGLContext; }
|
|
|
|
protected:
|
|
void UpdateTarget(gfx::DrawTarget* aDestTarget = nullptr);
|
|
|
|
RefPtr<gfx::SourceSurface> mSurface;
|
|
nsRefPtr<gl::GLContext> mGLContext;
|
|
mozilla::RefPtr<mozilla::gfx::DrawTarget> mDrawTarget;
|
|
|
|
RefPtr<gl::SurfaceStream> mStream;
|
|
|
|
uint32_t mCanvasFramebuffer;
|
|
|
|
bool mIsAlphaPremultiplied;
|
|
bool mNeedsYFlip;
|
|
|
|
RefPtr<gfx::DataSourceSurface> mCachedTempSurface;
|
|
|
|
gfx::DataSourceSurface* GetTempSurface(const gfx::IntSize& aSize,
|
|
const gfx::SurfaceFormat aFormat);
|
|
|
|
void DiscardTempSurface();
|
|
};
|
|
|
|
}
|
|
}
|
|
|
|
#endif
|