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(
  28       gfx::DataSourceSurface* aSurface) override {
  29     return nullptr;  // XXX - implement this (for MOZ_DUMP_PAINTING)
  30   }
  31
  32   gfx::YUVColorSpace GetYUVColorSpace() const override;
  33   gfx::ColorDepth GetColorDepth() const override;
  34   gfx::ColorRange GetColorRange() const override;
  35
  36   gfx::IntSize GetSize() const override;
  37
  38   bool IsValid() override;
  39
  40 #ifdef MOZ_LAYERS_HAVE_LOG
  41   const char* Name() override { return "GPUVideoTextureHost"; }
  42 #endif
  43
  44   void CreateRenderTexture(
  45       const wr::ExternalImageId& aExternalImageId) override;
  46
  47   void MaybeDestroyRenderTexture() override;
  48
  49   uint32_t NumSubTextures() override;
  50
  51   void PushResourceUpdates(wr::TransactionBuilder& aResources,
  52                            ResourceUpdateOp aOp,
  53                            const Range<wr::ImageKey>& aImageKeys,
  54                            const wr::ExternalImageId& aExtID) override;
  55
  56   void PushDisplayItems(wr::DisplayListBuilder& aBuilder,
  57                         const wr::LayoutRect& aBounds,
  58                         const wr::LayoutRect& aClip, wr::ImageRendering aFilter,
  59                         const Range<wr::ImageKey>& aImageKeys,
  60                         PushDisplayItemFlagSet aFlags) override;
  61
  62   bool SupportsExternalCompositing(WebRenderBackend aBackend) override;
  63
  64   void UnbindTextureSource() override;
  65
  66   void NotifyNotUsed() override;
  67
  68   BufferTextureHost* AsBufferTextureHost() override;
  69
  70   DXGITextureHostD3D11* AsDXGITextureHostD3D11() override;
  71
  72   bool IsWrappingSurfaceTextureHost() override;
  73
  74   TextureHostType GetTextureHostType() override;
  75
  76   bool NeedsDeferredDeletion() const override;
  77
  78   const dom::ContentParentId& GetContentId() const { return mContentId; }
  79
  80  protected:
  81   GPUVideoTextureHost(const dom::ContentParentId& aContentId,
  82                       TextureFlags aFlags,
  83                       const SurfaceDescriptorGPUVideo& aDescriptor);
  84
  85   TextureHost* EnsureWrappedTextureHost();
  86
  87   RefPtr<TextureHost> mWrappedTextureHost;
  88   dom::ContentParentId mContentId;
  89   SurfaceDescriptorGPUVideo mDescriptor;
  90 };
  91
  92 }  // namespace layers
  93 }  // namespace mozilla
  94
  95 #endif  // MOZILLA_GFX_GPUVIDEOTEXTUREHOST_H