gecko/gfx/layers/opengl/CanvasLayerOGL.h
Bas Schouten 341383c413 Bug 825928: Land layers refactoring. r=jrmuizel,bas,nical,mattwoodrow,roc,nrc,benwa,bjacob,jgilbert,kchen CLOSED TREE
Please contact Bas Schouten <bschouten@mozilla.com>, Nicolas Silva <nsilva@mozilla.com> or Nicholas Cameron <ncameron@mozilla.com> with general questions. Below is a rough list of authors to contact with specific questions.

Authors:
gfx/layers/Compositor.* gfx/layers/Effects.h - Compositor Interface - bas,nrc,nical
gfx/layers/d3d* - D3D9/D3D10 - bas
gfx/layers/ThebesLayer* - ThebesLayers - nrc,bas
gfx/layers/composite/* - CompositeLayers - nrc,nical
gfx/layers/client/* - Client - nrc,nical,bas
gfx/layers/*Image* - nical
gfx/layers/ipc ipc - IPC - nical
gfx/layers/opengl - CompositorOGL - nrc,nical
gfx/2d - bas,nrc
gfx/gl - GLContext - bjacob
dom/* layout/* - DOM - mattwoodrow
2013-04-10 09:20:52 +00:00

107 lines
2.6 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"
#include "GLDefs.h"
#include "mozilla/Preferences.h"
#if defined(GL_PROVIDER_GLX)
#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)
, mLayerProgram(gl::RGBALayerProgramType)
, mTexture(0)
, mTextureTarget(LOCAL_GL_TEXTURE_2D)
, mDelayedUpdates(false)
, mIsGLAlphaPremult(false)
, mUploadTexture(0)
#if defined(GL_PROVIDER_GLX)
, mPixmap(0)
#endif
{
mImplData = static_cast<LayerOGL*>(this);
mForceReadback = Preferences::GetBool("webgl.force-layers-readback", false);
}
~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> mGLContext;
gl::ShaderProgramType mLayerProgram;
RefPtr<gfx::DrawTarget> mDrawTarget;
GLuint mTexture;
GLenum mTextureTarget;
bool mDelayedUpdates;
bool mIsGLAlphaPremult;
bool mNeedsYFlip;
bool mForceReadback;
GLuint mUploadTexture;
#if defined(GL_PROVIDER_GLX)
GLXPixmap mPixmap;
#endif
nsRefPtr<gfxImageSurface> mCachedTempSurface;
gfxIntSize mCachedSize;
gfxASurface::gfxImageFormat mCachedFormat;
gfxImageSurface* GetTempSurface(const gfxIntSize& aSize,
const gfxASurface::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 = nullptr;
}
};
} /* layers */
} /* mozilla */
#endif /* GFX_IMAGELAYEROGL_H */