tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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SharedSurfaceDMABUF.h (1987B)

      1 /* -*- Mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; tab-width: 4; -*- */
      2 /* This Source Code Form is subject to the terms of the Mozilla Public
      3 * License, v. 2.0. If a copy of the MPL was not distributed with this
      4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
      5 
      6 #ifndef SHARED_SURFACE_DMABUF_H_
      7 #define SHARED_SURFACE_DMABUF_H_
      8 
      9 #include "SharedSurface.h"
     10 #include "mozilla/widget/DMABufSurface.h"
     11 
     12 namespace mozilla {
     13 namespace gl {
     14 
     15 class GLContext;
     16 class GLLibraryEGL;
     17 
     18 class SharedSurface_DMABUF final : public SharedSurface {
     19 public:
     20  const RefPtr<DMABufSurface> mSurface;
     21 
     22  static UniquePtr<SharedSurface_DMABUF> Create(const SharedSurfaceDesc&);
     23 
     24 private:
     25  SharedSurface_DMABUF(const SharedSurfaceDesc&, UniquePtr<MozFramebuffer>,
     26                       RefPtr<DMABufSurface>);
     27 
     28  void UpdateProdTexture(const MutexAutoLock& curAutoLock);
     29 
     30 public:
     31  virtual ~SharedSurface_DMABUF();
     32 
     33  // Exclusive Content/WebGL lock/unlock of surface for write
     34  virtual void LockProdImpl() override {}
     35  virtual void UnlockProdImpl() override {}
     36 
     37  // Non-exclusive Content/WebGL lock/unlock of surface for write
     38  virtual void ProducerAcquireImpl() override {}
     39  virtual void ProducerReleaseImpl() override;
     40 
     41  // Non-exclusive Content/WebGL lock/unlock for read from surface
     42  virtual void ProducerReadAcquireImpl() override {}
     43  virtual void ProducerReadReleaseImpl() override {}
     44 
     45  Maybe<layers::SurfaceDescriptor> ToSurfaceDescriptor() override;
     46 
     47  void WaitForBufferOwnership() override;
     48 };
     49 
     50 class SurfaceFactory_DMABUF : public SurfaceFactory {
     51 public:
     52  static UniquePtr<SurfaceFactory_DMABUF> Create(GLContext& gl);
     53 
     54  explicit SurfaceFactory_DMABUF(GLContext&);
     55 
     56 public:
     57  virtual UniquePtr<SharedSurface> CreateSharedImpl(
     58      const SharedSurfaceDesc& desc) override {
     59    return SharedSurface_DMABUF::Create(desc);
     60  }
     61 
     62  bool CanCreateSurface(GLContext& gl);
     63 };
     64 
     65 }  // namespace gl
     66 
     67 }  // namespace mozilla
     68 
     69 #endif /* SHARED_SURFACE_DMABUF_H_ */