gecko/gfx/layers/opengl/CanvasLayerOGL.h

136 lines
3.5 KiB
C++

/* -*- Mode: C++; tab-width: 20; 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_CANVASLAYEROGL_H
#define GFX_CANVASLAYEROGL_H
#include "LayerManagerOGL.h"
#include "gfxASurface.h"
#if defined(MOZ_WIDGET_GTK2) && !defined(MOZ_PLATFORM_MAEMO)
#include "GLXLibrary.h"
#include "mozilla/X11Util.h"
#endif
namespace mozilla {
namespace layers {
class THEBES_API CanvasLayerOGL :
public CanvasLayer,
public LayerOGL
{
public:
CanvasLayerOGL(LayerManagerOGL *aManager)
: CanvasLayer(aManager, NULL),
LayerOGL(aManager),
mTexture(0),
mDelayedUpdates(false)
#if defined(MOZ_WIDGET_GTK2) && !defined(MOZ_PLATFORM_MAEMO)
,mPixmap(0)
#endif
{
mImplData = static_cast<LayerOGL*>(this);
}
~CanvasLayerOGL() { Destroy(); }
// CanvasLayer implementation
virtual void Initialize(const Data& aData);
// LayerOGL implementation
virtual void Destroy();
virtual Layer* GetLayer() { return this; }
virtual void RenderLayer(int aPreviousFrameBuffer,
const nsIntPoint& aOffset);
virtual void CleanupResources();
protected:
void UpdateSurface();
nsRefPtr<gfxASurface> mCanvasSurface;
nsRefPtr<GLContext> mCanvasGLContext;
gl::ShaderProgramType mLayerProgram;
RefPtr<gfx::DrawTarget> mDrawTarget;
GLuint mTexture;
bool mDelayedUpdates;
bool mGLBufferIsPremultiplied;
bool mNeedsYFlip;
#if defined(MOZ_WIDGET_GTK2) && !defined(MOZ_PLATFORM_MAEMO)
GLXPixmap mPixmap;
#endif
nsRefPtr<gfxImageSurface> mCachedTempSurface;
gfxIntSize mCachedSize;
gfxImageFormat mCachedFormat;
gfxImageSurface* GetTempSurface(const gfxIntSize& aSize, const gfxImageFormat aFormat)
{
if (!mCachedTempSurface ||
aSize.width != mCachedSize.width ||
aSize.height != mCachedSize.height ||
aFormat != mCachedFormat)
{
mCachedTempSurface = new gfxImageSurface(aSize, aFormat);
mCachedSize = aSize;
mCachedFormat = aFormat;
}
return mCachedTempSurface;
}
void DiscardTempSurface()
{
mCachedTempSurface = nsnull;
}
};
// NB: eventually we'll have separate shadow canvas2d and shadow
// canvas3d layers, but currently they look the same from the
// perspective of the compositor process
class ShadowCanvasLayerOGL : public ShadowCanvasLayer,
public LayerOGL
{
typedef gl::TextureImage TextureImage;
public:
ShadowCanvasLayerOGL(LayerManagerOGL* aManager);
virtual ~ShadowCanvasLayerOGL();
// CanvasLayer impl
virtual void Initialize(const Data& aData);
virtual void Init(const CanvasSurface& aNewFront, bool needYFlip);
// This isn't meaningful for shadow canvas.
virtual void Updated(const nsIntRect&) {}
// ShadowCanvasLayer impl
virtual void Swap(const CanvasSurface& aNewFront,
bool needYFlip,
CanvasSurface* aNewBack);
virtual void DestroyFrontBuffer();
virtual void Disconnect();
// LayerOGL impl
void Destroy();
Layer* GetLayer();
virtual void RenderLayer(int aPreviousFrameBuffer,
const nsIntPoint& aOffset);
virtual void CleanupResources();
private:
nsRefPtr<TextureImage> mTexImage;
bool mNeedsYFlip;
SurfaceDescriptor mFrontBufferDescriptor;
GLuint mTexture;
};
} /* layers */
} /* mozilla */
#endif /* GFX_IMAGELAYEROGL_H */