gfx/webrender_bindings/RenderCompositorRecordedFrame.h

   1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
   3 /* This Source Code Form is subject to the terms of the Mozilla Public
   4  * License, v. 2.0. If a copy of the MPL was not distributed with this
   5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   6
   7 #ifndef MOZILLA_GFX_RENDERCOMPOSITOR_RECORDEDFRAME_H
   8 #define MOZILLA_GFX_RENDERCOMPOSITOR_RECORDEDFRAME_H
   9
  10 #include "mozilla/layers/CompositionRecorder.h"
  11
  12 namespace mozilla {
  13
  14 namespace wr {
  15
  16 class RenderCompositorRecordedFrame final : public layers::RecordedFrame {
  17  public:
  18   RenderCompositorRecordedFrame(
  19       const TimeStamp& aTimeStamp,
  20       RefPtr<layers::profiler_screenshots::AsyncReadbackBuffer>&& aBuffer)
  21       : RecordedFrame(aTimeStamp), mBuffer(aBuffer) {}
  22
  23   virtual already_AddRefed<gfx::DataSourceSurface> GetSourceSurface() override {
  24     if (mSurface) {
  25       return do_AddRef(mSurface);
  26     }
  27
  28     gfx::IntSize size = mBuffer->Size();
  29     mSurface = gfx::Factory::CreateDataSourceSurface(
  30         size, gfx::SurfaceFormat::B8G8R8A8,
  31         /* aZero = */ false);
  32
  33     if (!mBuffer->MapAndCopyInto(mSurface, size)) {
  34       mSurface = nullptr;
  35       return nullptr;
  36     }
  37
  38     return do_AddRef(mSurface);
  39   }
  40
  41  private:
  42   RefPtr<layers::profiler_screenshots::AsyncReadbackBuffer> mBuffer;
  43   RefPtr<gfx::DataSourceSurface> mSurface;
  44 };
  45
  46 }  // namespace wr
  47 }  // namespace mozilla
  48
  49 #endif