зеркало из https://github.com/mozilla/gecko-dev.git
107 строки
3.0 KiB
C++
107 строки
3.0 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 MOZILLA_GFX_MACIOSURFACETEXTUREHOSTOGL_H
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#define MOZILLA_GFX_MACIOSURFACETEXTUREHOSTOGL_H
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#include "mozilla/layers/TextureHostOGL.h"
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class MacIOSurface;
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namespace mozilla {
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namespace layers {
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/**
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* A texture source meant for use with MacIOSurfaceTextureHostOGL.
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*
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* It does not own any GL texture, and attaches its shared handle to one of
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* the compositor's temporary textures when binding.
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*/
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class MacIOSurfaceTextureSourceOGL : public NewTextureSource
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, public TextureSourceOGL
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{
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public:
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MacIOSurfaceTextureSourceOGL(CompositorOGL* aCompositor,
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MacIOSurface* aSurface);
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virtual ~MacIOSurfaceTextureSourceOGL();
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virtual TextureSourceOGL* AsSourceOGL() { return this; }
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virtual void BindTexture(GLenum activetex) MOZ_OVERRIDE;
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virtual bool IsValid() const MOZ_OVERRIDE { return !!gl(); }
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virtual gfx::IntSize GetSize() const MOZ_OVERRIDE;
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virtual gfx::SurfaceFormat GetFormat() const MOZ_OVERRIDE;
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virtual GLenum GetTextureTarget() const { return LOCAL_GL_TEXTURE_RECTANGLE_ARB; }
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virtual GLenum GetWrapMode() const MOZ_OVERRIDE { return LOCAL_GL_CLAMP_TO_EDGE; }
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virtual void UnbindTexture() MOZ_OVERRIDE {}
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// MacIOSurfaceTextureSourceOGL doesn't own any gl texture
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virtual void DeallocateDeviceData() {}
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void SetCompositor(CompositorOGL* aCompositor) {
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mCompositor = aCompositor;
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}
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gl::GLContext* gl() const;
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protected:
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CompositorOGL* mCompositor;
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RefPtr<MacIOSurface> mSurface;
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};
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/**
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* A TextureHost for shared MacIOSurface
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*
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* Most of the logic actually happens in MacIOSurfaceTextureSourceOGL.
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*/
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class MacIOSurfaceTextureHostOGL : public TextureHost
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{
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public:
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MacIOSurfaceTextureHostOGL(TextureFlags aFlags,
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const SurfaceDescriptorMacIOSurface& aDescriptor);
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// SharedTextureHostOGL doesn't own any GL texture
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virtual void DeallocateDeviceData() MOZ_OVERRIDE {}
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virtual void SetCompositor(Compositor* aCompositor) MOZ_OVERRIDE;
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virtual bool Lock() MOZ_OVERRIDE;
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virtual gfx::SurfaceFormat GetFormat() const MOZ_OVERRIDE;
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virtual NewTextureSource* GetTextureSources() MOZ_OVERRIDE
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{
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return mTextureSource;
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}
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virtual TemporaryRef<gfx::DataSourceSurface> GetAsSurface() MOZ_OVERRIDE
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{
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return nullptr; // XXX - implement this (for MOZ_DUMP_PAINTING)
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}
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gl::GLContext* gl() const;
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virtual gfx::IntSize GetSize() const MOZ_OVERRIDE;
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#ifdef MOZ_LAYERS_HAVE_LOG
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virtual const char* Name() { return "MacIOSurfaceTextureHostOGL"; }
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#endif
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protected:
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CompositorOGL* mCompositor;
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RefPtr<MacIOSurfaceTextureSourceOGL> mTextureSource;
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RefPtr<MacIOSurface> mSurface;
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};
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}
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}
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#endif // MOZILLA_GFX_MACIOSURFACETEXTUREHOSTOGL_H
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