gfx/gl/SharedSurfaceDMABUF.h

   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_ */