mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
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143 lines
3.7 KiB
C++
143 lines
3.7 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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#if defined(MOZ_X11) && !defined(MOZ_PLATFORM_MAEMO)
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#include "GLXLibrary.h"
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#include "mozilla/X11Util.h"
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#endif
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#include "mozilla/Preferences.h"
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namespace mozilla {
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namespace layers {
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class THEBES_API 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, NULL),
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LayerOGL(aManager),
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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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#if defined(MOZ_X11) && !defined(MOZ_PLATFORM_MAEMO)
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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() { Destroy(); }
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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> mCanvasGLContext;
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gl::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 mGLBufferIsPremultiplied;
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bool mNeedsYFlip;
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bool mForceReadback;
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#if defined(MOZ_X11) && !defined(MOZ_PLATFORM_MAEMO)
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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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{
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mCachedTempSurface = nullptr;
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}
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};
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// NB: eventually we'll have separate shadow canvas2d and shadow
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// canvas3d layers, but currently they look the same from the
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// perspective of the compositor process
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class ShadowCanvasLayerOGL : public ShadowCanvasLayer,
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public LayerOGL
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{
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typedef gl::TextureImage TextureImage;
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public:
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ShadowCanvasLayerOGL(LayerManagerOGL* aManager);
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virtual ~ShadowCanvasLayerOGL();
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// CanvasLayer impl
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virtual void Initialize(const Data& aData);
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virtual void Init(const CanvasSurface& aNewFront, bool needYFlip);
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// This isn't meaningful for shadow canvas.
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virtual void Updated(const nsIntRect&) {}
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// ShadowCanvasLayer impl
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virtual void Swap(const CanvasSurface& aNewFront,
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bool needYFlip,
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CanvasSurface* aNewBack);
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virtual void DestroyFrontBuffer();
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virtual void Disconnect();
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// LayerOGL impl
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void Destroy();
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Layer* GetLayer();
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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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private:
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nsRefPtr<TextureImage> mTexImage;
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bool mNeedsYFlip;
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SurfaceDescriptor mFrontBufferDescriptor;
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GLuint mTexture;
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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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