summaryrefslogtreecommitdiffstats
path: root/gfx/layers/basic/MacIOSurfaceTextureHostBasic.h
blob: 9dd4c38a26540b3b958e7cc7fec173d9989dd1f8 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#ifndef MOZILLA_GFX_MACIOSURFACETEXTUREHOST_BASIC_H
#define MOZILLA_GFX_MACIOSURFACETEXTUREHOST_BASIC_H

#include "mozilla/layers/BasicCompositor.h"
#include "mozilla/layers/TextureHostBasic.h"

class MacIOSurface;

namespace mozilla {
namespace layers {

class BasicCompositor;

/**
 * A texture source meant for use with BasicCompositor.
 *
 * It does not own any GL texture, and attaches its shared handle to one of
 * the compositor's temporary textures when binding.
 */
class MacIOSurfaceTextureSourceBasic : public TextureSourceBasic,
                                       public TextureSource {
 public:
  explicit MacIOSurfaceTextureSourceBasic(MacIOSurface* aSurface);
  virtual ~MacIOSurfaceTextureSourceBasic();

  const char* Name() const override { return "MacIOSurfaceTextureSourceBasic"; }

  TextureSourceBasic* AsSourceBasic() override { return this; }

  gfx::IntSize GetSize() const override;
  gfx::SurfaceFormat GetFormat() const override;
  gfx::SourceSurface* GetSurface(gfx::DrawTarget* aTarget) override;

  void DeallocateDeviceData() override {}

 protected:
  RefPtr<MacIOSurface> mSurface;
  RefPtr<gfx::SourceSurface> mSourceSurface;
};

/**
 * A TextureHost for shared MacIOSurface
 *
 * Most of the logic actually happens in MacIOSurfaceTextureSourceBasic.
 */
class MacIOSurfaceTextureHostBasic : public TextureHost {
 public:
  MacIOSurfaceTextureHostBasic(
      TextureFlags aFlags, const SurfaceDescriptorMacIOSurface& aDescriptor);

  void SetTextureSourceProvider(TextureSourceProvider* aProvider) override;

  bool Lock() override;

  gfx::SurfaceFormat GetFormat() const override;

  bool BindTextureSource(CompositableTextureSourceRef& aTexture) override {
    aTexture = mTextureSource;
    return !!aTexture;
  }

  already_AddRefed<gfx::DataSourceSurface> GetAsSurface() override {
    return nullptr;  // XXX - implement this (for MOZ_DUMP_PAINTING)
  }

  gfx::IntSize GetSize() const override;
  MacIOSurface* GetMacIOSurface() override { return mSurface; }

#ifdef MOZ_LAYERS_HAVE_LOG
  const char* Name() override { return "MacIOSurfaceTextureHostBasic"; }
#endif

 protected:
  RefPtr<MacIOSurfaceTextureSourceBasic> mTextureSource;
  RefPtr<MacIOSurface> mSurface;
};

}  // namespace layers
}  // namespace mozilla

#endif  // MOZILLA_GFX_MACIOSURFACETEXTUREHOSTOGL_BASIC_H