gfx/layers/client/CompositableClient.cpp

branch
TOR_BUG_9701
changeset 15
b8a032363ba2
equal deleted inserted replaced
-1:000000000000 0:797d61a4601d
1 /* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
2 /* This Source Code Form is subject to the terms of the Mozilla Public
3 * License, v. 2.0. If a copy of the MPL was not distributed with this
4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
5
6 #include "mozilla/layers/CompositableClient.h"
7 #include <stdint.h> // for uint64_t, uint32_t
8 #include "gfxPlatform.h" // for gfxPlatform
9 #include "mozilla/layers/CompositableForwarder.h"
10 #include "mozilla/layers/TextureClient.h" // for TextureClient, etc
11 #include "mozilla/layers/TextureClientOGL.h"
12 #include "mozilla/mozalloc.h" // for operator delete, etc
13 #ifdef XP_WIN
14 #include "gfxWindowsPlatform.h" // for gfxWindowsPlatform
15 #include "mozilla/layers/TextureD3D11.h"
16 #include "mozilla/layers/TextureD3D9.h"
17 #endif
18
19 using namespace mozilla::gfx;
20
21 namespace mozilla {
22 namespace layers {
23
24 /**
25 * IPDL actor used by CompositableClient to match with its corresponding
26 * CompositableHost on the compositor side.
27 *
28 * CompositableChild is owned by a CompositableClient.
29 */
30 class CompositableChild : public PCompositableChild
31 {
32 public:
33 CompositableChild()
34 : mCompositableClient(nullptr), mAsyncID(0)
35 {
36 MOZ_COUNT_CTOR(CompositableChild);
37 }
38
39 ~CompositableChild()
40 {
41 MOZ_COUNT_DTOR(CompositableChild);
42 }
43
44 virtual void ActorDestroy(ActorDestroyReason) MOZ_OVERRIDE {
45 if (mCompositableClient) {
46 mCompositableClient->mCompositableChild = nullptr;
47 }
48 }
49
50 CompositableClient* mCompositableClient;
51
52 uint64_t mAsyncID;
53 };
54
55 PCompositableChild*
56 CompositableClient::CreateIPDLActor()
57 {
58 return new CompositableChild();
59 }
60
61 bool
62 CompositableClient::DestroyIPDLActor(PCompositableChild* actor)
63 {
64 delete actor;
65 return true;
66 }
67
68 void
69 CompositableClient::InitIPDLActor(PCompositableChild* aActor, uint64_t aAsyncID)
70 {
71 MOZ_ASSERT(aActor);
72 CompositableChild* child = static_cast<CompositableChild*>(aActor);
73 mCompositableChild = child;
74 child->mCompositableClient = this;
75 child->mAsyncID = aAsyncID;
76 }
77
78 CompositableClient*
79 CompositableClient::FromIPDLActor(PCompositableChild* aActor)
80 {
81 MOZ_ASSERT(aActor);
82 return static_cast<CompositableChild*>(aActor)->mCompositableClient;
83 }
84
85 CompositableClient::CompositableClient(CompositableForwarder* aForwarder,
86 TextureFlags aTextureFlags)
87 : mCompositableChild(nullptr)
88 , mForwarder(aForwarder)
89 , mTextureFlags(aTextureFlags)
90 {
91 MOZ_COUNT_CTOR(CompositableClient);
92 }
93
94 CompositableClient::~CompositableClient()
95 {
96 MOZ_COUNT_DTOR(CompositableClient);
97 Destroy();
98 }
99
100 LayersBackend
101 CompositableClient::GetCompositorBackendType() const
102 {
103 return mForwarder->GetCompositorBackendType();
104 }
105
106 void
107 CompositableClient::SetIPDLActor(CompositableChild* aChild)
108 {
109 mCompositableChild = aChild;
110 }
111
112 PCompositableChild*
113 CompositableClient::GetIPDLActor() const
114 {
115 return mCompositableChild;
116 }
117
118 bool
119 CompositableClient::Connect()
120 {
121 if (!GetForwarder() || GetIPDLActor()) {
122 return false;
123 }
124 GetForwarder()->Connect(this);
125 return true;
126 }
127
128 void
129 CompositableClient::Destroy()
130 {
131 if (!mCompositableChild) {
132 return;
133 }
134 mCompositableChild->mCompositableClient = nullptr;
135 PCompositableChild::Send__delete__(mCompositableChild);
136 mCompositableChild = nullptr;
137 }
138
139 uint64_t
140 CompositableClient::GetAsyncID() const
141 {
142 if (mCompositableChild) {
143 return mCompositableChild->mAsyncID;
144 }
145 return 0; // zero is always an invalid async ID
146 }
147
148 TemporaryRef<BufferTextureClient>
149 CompositableClient::CreateBufferTextureClient(SurfaceFormat aFormat,
150 TextureFlags aTextureFlags,
151 gfx::BackendType aMoz2DBackend)
152 {
153 return TextureClient::CreateBufferTextureClient(GetForwarder(), aFormat,
154 aTextureFlags | mTextureFlags,
155 aMoz2DBackend);
156 }
157
158 TemporaryRef<TextureClient>
159 CompositableClient::CreateTextureClientForDrawing(SurfaceFormat aFormat,
160 TextureFlags aTextureFlags,
161 gfx::BackendType aMoz2DBackend,
162 const IntSize& aSizeHint)
163 {
164 return TextureClient::CreateTextureClientForDrawing(GetForwarder(), aFormat,
165 aTextureFlags | mTextureFlags,
166 aMoz2DBackend,
167 aSizeHint);
168 }
169
170 bool
171 CompositableClient::AddTextureClient(TextureClient* aClient)
172 {
173 return aClient->InitIPDLActor(mForwarder);
174 }
175
176 void
177 CompositableClient::OnTransaction()
178 {
179 }
180
181 } // namespace layers
182 } // namespace mozilla

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