gfx/webrender_bindings/RenderDMABUFTextureHost.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_RENDERDMABUFTEXTUREHOST_H
   8 #define MOZILLA_GFX_RENDERDMABUFTEXTUREHOST_H
   9
  10 #include "mozilla/layers/TextureHostOGL.h"
  11 #include "RenderTextureHost.h"
  12 #include "RenderTextureHostSWGL.h"
  13 #include "mozilla/widget/DMABufSurface.h"
  14
  15 namespace mozilla {
  16
  17 namespace layers {
  18 class SurfaceDescriptorDMABuf;
  19 }
  20
  21 namespace wr {
  22
  23 class RenderDMABUFTextureHost final : public RenderTextureHostSWGL {
  24  public:
  25   explicit RenderDMABUFTextureHost(DMABufSurface* aSurface);
  26
  27   wr::WrExternalImage Lock(uint8_t aChannelIndex, gl::GLContext* aGL) override;
  28   void Unlock() override;
  29   void ClearCachedResources() override;
  30
  31   size_t Bytes() override {
  32     return mSurface->GetWidth() * mSurface->GetHeight() *
  33            BytesPerPixel(mSurface->GetFormat());
  34   }
  35
  36   // RenderTextureHostSWGL
  37   gfx::SurfaceFormat GetFormat() const override;
  38   gfx::ColorDepth GetColorDepth() const override {
  39     return gfx::ColorDepth::COLOR_8;
  40   }
  41   size_t GetPlaneCount() const override { return mSurface->GetTextureCount(); };
  42   bool MapPlane(RenderCompositor* aCompositor, uint8_t aChannelIndex,
  43                 PlaneInfo& aPlaneInfo) override;
  44   void UnmapPlanes() override;
  45
  46  private:
  47   virtual ~RenderDMABUFTextureHost();
  48   void DeleteTextureHandle();
  49
  50   RefPtr<DMABufSurface> mSurface;
  51   RefPtr<gl::GLContext> mGL;
  52   RefPtr<gfx::DataSourceSurface> mReadback;
  53 };
  54
  55 }  // namespace wr
  56 }  // namespace mozilla
  57
  58 #endif  // MOZILLA_GFX_RENDERDMABUFTEXTUREHOST_H