gfx/layers/composite/GPUVideoTextureHost.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_GPUVIDEOTEXTUREHOST_H
   8 #define MOZILLA_GFX_GPUVIDEOTEXTUREHOST_H
   9
  10 #include "mozilla/layers/TextureHost.h"
  11
  12 namespace mozilla {
  13 namespace layers {
  14
  15 class GPUVideoTextureHost : public TextureHost {
  16  public:
  17   static GPUVideoTextureHost* CreateFromDescriptor(
  18       const dom::ContentParentId& aContentId, TextureFlags aFlags,
  19       const SurfaceDescriptorGPUVideo& aDescriptor);
  20
  21   virtual ~GPUVideoTextureHost();
  22
  23   void DeallocateDeviceData() override {}
  24
  25   gfx::SurfaceFormat GetFormat() const override;
  26
  27   already_AddRefed<gfx::DataSourceSurface> GetAsSurface() override {
  28     return nullptr;  // XXX - implement this (for MOZ_DUMP_PAINTING)
  29   }
  30
  31   gfx::YUVColorSpace GetYUVColorSpace() const override;
  32   gfx::ColorDepth GetColorDepth() const override;
  33   gfx::ColorRange GetColorRange() const override;
  34
  35   gfx::IntSize GetSize() const override;
  36
  37   bool IsValid() override;
  38
  39 #ifdef MOZ_LAYERS_HAVE_LOG
  40   const char* Name() override { return "GPUVideoTextureHost"; }
  41 #endif
  42
  43   void CreateRenderTexture(
  44       const wr::ExternalImageId& aExternalImageId) override;
  45
  46   void MaybeDestroyRenderTexture() override;
  47
  48   uint32_t NumSubTextures() override;
  49
  50   void PushResourceUpdates(wr::TransactionBuilder& aResources,
  51                            ResourceUpdateOp aOp,
  52                            const Range<wr::ImageKey>& aImageKeys,
  53                            const wr::ExternalImageId& aExtID) override;
  54
  55   void PushDisplayItems(wr::DisplayListBuilder& aBuilder,
  56                         const wr::LayoutRect& aBounds,
  57                         const wr::LayoutRect& aClip, wr::ImageRendering aFilter,
  58                         const Range<wr::ImageKey>& aImageKeys,
  59                         PushDisplayItemFlagSet aFlags) override;
  60
  61   bool SupportsExternalCompositing(WebRenderBackend aBackend) override;
  62
  63   void UnbindTextureSource() override;
  64
  65   void NotifyNotUsed() override;
  66
  67   BufferTextureHost* AsBufferTextureHost() override;
  68
  69   bool IsWrappingSurfaceTextureHost() override;
  70
  71   TextureHostType GetTextureHostType() override;
  72
  73   bool NeedsDeferredDeletion() const override;
  74
  75   const dom::ContentParentId& GetContentId() const { return mContentId; }
  76
  77  protected:
  78   GPUVideoTextureHost(const dom::ContentParentId& aContentId,
  79                       TextureFlags aFlags,
  80                       const SurfaceDescriptorGPUVideo& aDescriptor);
  81
  82   TextureHost* EnsureWrappedTextureHost();
  83
  84   RefPtr<TextureHost> mWrappedTextureHost;
  85   dom::ContentParentId mContentId;
  86   SurfaceDescriptorGPUVideo mDescriptor;
  87 };
  88
  89 }  // namespace layers
  90 }  // namespace mozilla
  91
  92 #endif  // MOZILLA_GFX_GPUVIDEOTEXTUREHOST_H