зеркало из https://github.com/mozilla/gecko-dev.git
146 строки
4.4 KiB
C++
146 строки
4.4 KiB
C++
/* -*- Mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; tab-width: 4; -*- */
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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 SHARED_SURFACE_GL_H_
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#define SHARED_SURFACE_GL_H_
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#include "ScopedGLHelpers.h"
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#include "SharedSurface.h"
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#include "SurfaceTypes.h"
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#include "GLContextTypes.h"
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#include "gfxTypes.h"
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#include "mozilla/Mutex.h"
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#include <queue>
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namespace mozilla {
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namespace gl {
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class GLContext;
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} // namespace gl
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namespace gfx {
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class DataSourceSurface;
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} // namespace gfx
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} // namespace mozilla
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namespace mozilla {
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namespace gl {
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// For readback and bootstrapping:
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class SharedSurface_Basic : public SharedSurface {
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public:
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static UniquePtr<SharedSurface_Basic> Create(GLContext* gl,
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const GLFormats& formats,
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const gfx::IntSize& size,
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bool hasAlpha);
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static UniquePtr<SharedSurface_Basic> Wrap(GLContext* gl,
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const gfx::IntSize& size,
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bool hasAlpha, GLuint tex);
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static SharedSurface_Basic* Cast(SharedSurface* surf) {
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MOZ_ASSERT(surf->mType == SharedSurfaceType::Basic);
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return (SharedSurface_Basic*)surf;
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}
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protected:
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const GLuint mTex;
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const bool mOwnsTex;
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GLuint mFB;
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SharedSurface_Basic(GLContext* gl, const gfx::IntSize& size, bool hasAlpha,
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GLuint tex, bool ownsTex);
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public:
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virtual ~SharedSurface_Basic();
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virtual void LockProdImpl() override {}
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virtual void UnlockProdImpl() override {}
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virtual void ProducerAcquireImpl() override {}
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virtual void ProducerReleaseImpl() override {}
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virtual GLuint ProdTexture() override { return mTex; }
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virtual bool ToSurfaceDescriptor(
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layers::SurfaceDescriptor* const out_descriptor) override {
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MOZ_CRASH("GFX: ToSurfaceDescriptor");
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return false;
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}
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};
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class SurfaceFactory_Basic : public SurfaceFactory {
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public:
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SurfaceFactory_Basic(GLContext* gl, const SurfaceCaps& caps,
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const layers::TextureFlags& flags);
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virtual UniquePtr<SharedSurface> CreateShared(
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const gfx::IntSize& size) override {
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bool hasAlpha = mReadCaps.alpha;
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return SharedSurface_Basic::Create(mGL, mFormats, size, hasAlpha);
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}
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};
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// Using shared GL textures:
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class SharedSurface_GLTexture : public SharedSurface {
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public:
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static UniquePtr<SharedSurface_GLTexture> Create(GLContext* prodGL,
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const GLFormats& formats,
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const gfx::IntSize& size,
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bool hasAlpha);
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static SharedSurface_GLTexture* Cast(SharedSurface* surf) {
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MOZ_ASSERT(surf->mType == SharedSurfaceType::SharedGLTexture);
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return (SharedSurface_GLTexture*)surf;
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}
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protected:
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const GLuint mTex;
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GLsync mSync;
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SharedSurface_GLTexture(GLContext* prodGL, const gfx::IntSize& size,
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bool hasAlpha, GLuint tex)
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: SharedSurface(SharedSurfaceType::SharedGLTexture,
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AttachmentType::GLTexture, prodGL, size, hasAlpha, true),
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mTex(tex),
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mSync(0) {}
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public:
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virtual ~SharedSurface_GLTexture();
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virtual void LockProdImpl() override {}
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virtual void UnlockProdImpl() override {}
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virtual void ProducerAcquireImpl() override {}
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virtual void ProducerReleaseImpl() override;
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virtual GLuint ProdTexture() override { return mTex; }
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virtual bool ToSurfaceDescriptor(
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layers::SurfaceDescriptor* const out_descriptor) override;
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};
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class SurfaceFactory_GLTexture : public SurfaceFactory {
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public:
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SurfaceFactory_GLTexture(GLContext* prodGL, const SurfaceCaps& caps,
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const RefPtr<layers::LayersIPCChannel>& allocator,
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const layers::TextureFlags& flags)
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: SurfaceFactory(SharedSurfaceType::SharedGLTexture, prodGL, caps,
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allocator, flags) {}
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virtual UniquePtr<SharedSurface> CreateShared(
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const gfx::IntSize& size) override {
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bool hasAlpha = mReadCaps.alpha;
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return SharedSurface_GLTexture::Create(mGL, mFormats, size, hasAlpha);
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}
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};
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} // namespace gl
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} /* namespace mozilla */
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#endif /* SHARED_SURFACE_GL_H_ */
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