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_MACIOSURFACETEXTUREHOST_BASIC_H
8 #define MOZILLA_GFX_MACIOSURFACETEXTUREHOST_BASIC_H
9 
10 #include "mozilla/layers/BasicCompositor.h"
11 #include "mozilla/layers/TextureHostBasic.h"
12 
13 class MacIOSurface;
14 
15 namespace mozilla {
16 namespace layers {
17 
18 class BasicCompositor;
19 
20 /**
21  * A texture source meant for use with BasicCompositor.
22  *
23  * It does not own any GL texture, and attaches its shared handle to one of
24  * the compositor's temporary textures when binding.
25  */
26 class MacIOSurfaceTextureSourceBasic : public TextureSourceBasic,
27                                        public TextureSource {
28  public:
29   explicit MacIOSurfaceTextureSourceBasic(MacIOSurface* aSurface);
30   virtual ~MacIOSurfaceTextureSourceBasic();
31 
Name()32   virtual const char* Name() const override {
33     return "MacIOSurfaceTextureSourceBasic";
34   }
35 
AsSourceBasic()36   virtual TextureSourceBasic* AsSourceBasic() override { return this; }
37 
38   virtual gfx::IntSize GetSize() const override;
39   virtual gfx::SurfaceFormat GetFormat() const override;
40   virtual gfx::SourceSurface* GetSurface(gfx::DrawTarget* aTarget) override;
41 
DeallocateDeviceData()42   virtual void DeallocateDeviceData() override {}
43 
44  protected:
45   RefPtr<MacIOSurface> mSurface;
46   RefPtr<gfx::SourceSurface> mSourceSurface;
47 };
48 
49 /**
50  * A TextureHost for shared MacIOSurface
51  *
52  * Most of the logic actually happens in MacIOSurfaceTextureSourceBasic.
53  */
54 class MacIOSurfaceTextureHostBasic : public TextureHost {
55  public:
56   MacIOSurfaceTextureHostBasic(
57       TextureFlags aFlags, const SurfaceDescriptorMacIOSurface& aDescriptor);
58 
59   virtual void SetTextureSourceProvider(
60       TextureSourceProvider* aProvider) override;
61 
62   virtual bool Lock() override;
63 
64   virtual gfx::SurfaceFormat GetFormat() const override;
65 
BindTextureSource(CompositableTextureSourceRef & aTexture)66   virtual bool BindTextureSource(
67       CompositableTextureSourceRef& aTexture) override {
68     aTexture = mTextureSource;
69     return !!aTexture;
70   }
71 
GetAsSurface()72   virtual already_AddRefed<gfx::DataSourceSurface> GetAsSurface() override {
73     return nullptr;  // XXX - implement this (for MOZ_DUMP_PAINTING)
74   }
75 
76   virtual gfx::IntSize GetSize() const override;
GetMacIOSurface()77   virtual MacIOSurface* GetMacIOSurface() override { return mSurface; }
78 
79 #ifdef MOZ_LAYERS_HAVE_LOG
Name()80   virtual const char* Name() override { return "MacIOSurfaceTextureHostBasic"; }
81 #endif
82 
83  protected:
84   RefPtr<MacIOSurfaceTextureSourceBasic> mTextureSource;
85   RefPtr<MacIOSurface> mSurface;
86 };
87 
88 }  // namespace layers
89 }  // namespace mozilla
90 
91 #endif  // MOZILLA_GFX_MACIOSURFACETEXTUREHOSTOGL_BASIC_H
92