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107 lines
2.6 KiB
C++
107 lines
2.6 KiB
C++
/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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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_CANVASLAYEROGL_H
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#define GFX_CANVASLAYEROGL_H
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#include "LayerManagerOGL.h"
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#include "gfxASurface.h"
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#include "GLDefs.h"
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#include "mozilla/Preferences.h"
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#if defined(GL_PROVIDER_GLX)
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#include "GLXLibrary.h"
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#include "mozilla/X11Util.h"
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#endif
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namespace mozilla {
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namespace layers {
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class CanvasLayerOGL :
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public CanvasLayer,
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public LayerOGL
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{
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public:
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CanvasLayerOGL(LayerManagerOGL *aManager)
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: CanvasLayer(aManager, nullptr)
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, LayerOGL(aManager)
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, mLayerProgram(RGBALayerProgramType)
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, mTexture(0)
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, mTextureTarget(LOCAL_GL_TEXTURE_2D)
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, mDelayedUpdates(false)
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, mIsGLAlphaPremult(false)
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, mUploadTexture(0)
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#if defined(GL_PROVIDER_GLX)
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, mPixmap(0)
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#endif
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{
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mImplData = static_cast<LayerOGL*>(this);
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mForceReadback = Preferences::GetBool("webgl.force-layers-readback", false);
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}
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~CanvasLayerOGL() {
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Destroy();
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}
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// CanvasLayer implementation
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virtual void Initialize(const Data& aData);
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// LayerOGL implementation
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virtual void Destroy();
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virtual Layer* GetLayer() { return this; }
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virtual void RenderLayer(int aPreviousFrameBuffer,
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const nsIntPoint& aOffset);
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virtual void CleanupResources();
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protected:
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void UpdateSurface();
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nsRefPtr<gfxASurface> mCanvasSurface;
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nsRefPtr<GLContext> mGLContext;
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ShaderProgramType mLayerProgram;
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RefPtr<gfx::DrawTarget> mDrawTarget;
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GLuint mTexture;
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GLenum mTextureTarget;
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bool mDelayedUpdates;
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bool mIsGLAlphaPremult;
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bool mNeedsYFlip;
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bool mForceReadback;
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GLuint mUploadTexture;
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#if defined(GL_PROVIDER_GLX)
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GLXPixmap mPixmap;
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#endif
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nsRefPtr<gfxImageSurface> mCachedTempSurface;
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gfxIntSize mCachedSize;
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gfxASurface::gfxImageFormat mCachedFormat;
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gfxImageSurface* GetTempSurface(const gfxIntSize& aSize,
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const gfxASurface::gfxImageFormat aFormat)
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{
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if (!mCachedTempSurface ||
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aSize.width != mCachedSize.width ||
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aSize.height != mCachedSize.height ||
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aFormat != mCachedFormat)
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{
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mCachedTempSurface = new gfxImageSurface(aSize, aFormat);
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mCachedSize = aSize;
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mCachedFormat = aFormat;
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}
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return mCachedTempSurface;
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}
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void DiscardTempSurface() {
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mCachedTempSurface = nullptr;
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}
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};
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} /* layers */
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} /* mozilla */
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#endif /* GFX_IMAGELAYEROGL_H */
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