1 // Copyright 2014 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 #include "content/browser/android/in_process/synchronous_compositor_factory_impl.h"
6
7 #include "content/browser/android/in_process/synchronous_compositor_output_surface.h"
8 #include "content/public/browser/browser_thread.h"
9 #include "gpu/command_buffer/client/gl_in_process_context.h"
10 #include "ui/gl/android/surface_texture.h"
11 #include "ui/gl/gl_surface.h"
12 #include "ui/gl/gl_surface_stub.h"
13 #include "webkit/common/gpu/context_provider_in_process.h"
14 #include "webkit/common/gpu/webgraphicscontext3d_in_process_command_buffer_impl.h"
15
16 namespace content {
17
18 namespace {
19
GetDefaultAttribs()20 blink::WebGraphicsContext3D::Attributes GetDefaultAttribs() {
21 blink::WebGraphicsContext3D::Attributes attributes;
22 attributes.antialias = false;
23 attributes.depth = false;
24 attributes.stencil = false;
25 attributes.shareResources = true;
26 attributes.noAutomaticFlushes = true;
27
28 return attributes;
29 }
30
31 using webkit::gpu::WebGraphicsContext3DInProcessCommandBufferImpl;
32
CreateContext(scoped_refptr<gfx::GLSurface> surface,scoped_refptr<gpu::InProcessCommandBuffer::Service> service,gpu::GLInProcessContext * share_context)33 scoped_ptr<gpu::GLInProcessContext> CreateContext(
34 scoped_refptr<gfx::GLSurface> surface,
35 scoped_refptr<gpu::InProcessCommandBuffer::Service> service,
36 gpu::GLInProcessContext* share_context) {
37 const gfx::GpuPreference gpu_preference = gfx::PreferDiscreteGpu;
38
39 if (!surface)
40 surface = gfx::GLSurface::CreateOffscreenGLSurface(gfx::Size(1, 1));
41
42 gpu::GLInProcessContextAttribs in_process_attribs;
43 WebGraphicsContext3DInProcessCommandBufferImpl::ConvertAttributes(
44 GetDefaultAttribs(), &in_process_attribs);
45 scoped_ptr<gpu::GLInProcessContext> context(
46 gpu::GLInProcessContext::CreateWithSurface(surface,
47 service,
48 share_context,
49 in_process_attribs,
50 gpu_preference));
51 return context.Pass();
52 }
53
WrapContext(scoped_ptr<gpu::GLInProcessContext> context)54 scoped_ptr<WebGraphicsContext3DInProcessCommandBufferImpl> WrapContext(
55 scoped_ptr<gpu::GLInProcessContext> context) {
56 if (!context.get())
57 return scoped_ptr<WebGraphicsContext3DInProcessCommandBufferImpl>();
58
59 return scoped_ptr<WebGraphicsContext3DInProcessCommandBufferImpl>(
60 WebGraphicsContext3DInProcessCommandBufferImpl::WrapContext(
61 context.Pass(), GetDefaultAttribs()));
62 }
63
64 class VideoContextProvider
65 : public StreamTextureFactorySynchronousImpl::ContextProvider {
66 public:
VideoContextProvider(scoped_ptr<gpu::GLInProcessContext> gl_in_process_context)67 VideoContextProvider(
68 scoped_ptr<gpu::GLInProcessContext> gl_in_process_context)
69 : gl_in_process_context_(gl_in_process_context.get()) {
70
71 context_provider_ = webkit::gpu::ContextProviderInProcess::Create(
72 WrapContext(gl_in_process_context.Pass()),
73 "Video-Offscreen-main-thread");
74 context_provider_->BindToCurrentThread();
75 }
76
GetSurfaceTexture(uint32 stream_id)77 virtual scoped_refptr<gfx::SurfaceTexture> GetSurfaceTexture(
78 uint32 stream_id) OVERRIDE {
79 return gl_in_process_context_->GetSurfaceTexture(stream_id);
80 }
81
Context3d()82 virtual blink::WebGraphicsContext3D* Context3d() OVERRIDE {
83 return context_provider_->Context3d();
84 }
85
86 private:
87 friend class base::RefCountedThreadSafe<VideoContextProvider>;
~VideoContextProvider()88 virtual ~VideoContextProvider() {}
89
90 scoped_refptr<cc::ContextProvider> context_provider_;
91 gpu::GLInProcessContext* gl_in_process_context_;
92
93 DISALLOW_COPY_AND_ASSIGN(VideoContextProvider);
94 };
95
96 } // namespace
97
98 using webkit::gpu::WebGraphicsContext3DInProcessCommandBufferImpl;
99
SynchronousCompositorFactoryImpl()100 SynchronousCompositorFactoryImpl::SynchronousCompositorFactoryImpl()
101 : wrapped_gl_context_for_main_thread_(NULL),
102 wrapped_gl_context_for_compositor_thread_(NULL),
103 num_hardware_compositors_(0) {
104 SynchronousCompositorFactory::SetInstance(this);
105 }
106
~SynchronousCompositorFactoryImpl()107 SynchronousCompositorFactoryImpl::~SynchronousCompositorFactoryImpl() {}
108
109 scoped_refptr<base::MessageLoopProxy>
GetCompositorMessageLoop()110 SynchronousCompositorFactoryImpl::GetCompositorMessageLoop() {
111 return BrowserThread::GetMessageLoopProxyForThread(BrowserThread::UI);
112 }
113
114 scoped_ptr<cc::OutputSurface>
CreateOutputSurface(int routing_id)115 SynchronousCompositorFactoryImpl::CreateOutputSurface(int routing_id) {
116 scoped_ptr<SynchronousCompositorOutputSurface> output_surface(
117 new SynchronousCompositorOutputSurface(routing_id));
118 return output_surface.PassAs<cc::OutputSurface>();
119 }
120
121 InputHandlerManagerClient*
GetInputHandlerManagerClient()122 SynchronousCompositorFactoryImpl::GetInputHandlerManagerClient() {
123 return synchronous_input_event_filter();
124 }
125
126 scoped_refptr<cc::ContextProvider>
GetOffscreenContextProviderForMainThread()127 SynchronousCompositorFactoryImpl::GetOffscreenContextProviderForMainThread() {
128 bool failed = false;
129 if ((!offscreen_context_for_main_thread_.get() ||
130 offscreen_context_for_main_thread_->DestroyedOnMainThread())) {
131 scoped_ptr<gpu::GLInProcessContext> context =
132 CreateContext(NULL, NULL, NULL);
133 wrapped_gl_context_for_main_thread_ = context.get();
134 offscreen_context_for_main_thread_ =
135 webkit::gpu::ContextProviderInProcess::Create(
136 WrapContext(context.Pass()),
137 "Compositor-Offscreen-main-thread");
138 failed = !offscreen_context_for_main_thread_.get() ||
139 !offscreen_context_for_main_thread_->BindToCurrentThread();
140 }
141
142 if (failed) {
143 offscreen_context_for_main_thread_ = NULL;
144 wrapped_gl_context_for_main_thread_ = NULL;
145 }
146 return offscreen_context_for_main_thread_;
147 }
148
149 // This is called on both renderer main thread (offscreen context creation
150 // path shared between cross-process and in-process platforms) and renderer
151 // compositor impl thread (InitializeHwDraw) in order to support Android
152 // WebView synchronously enable and disable hardware mode multiple times in
153 // the same task. This is ok because in-process WGC3D creation may happen on
154 // any thread and is lightweight.
155 scoped_refptr<cc::ContextProvider> SynchronousCompositorFactoryImpl::
GetOffscreenContextProviderForCompositorThread()156 GetOffscreenContextProviderForCompositorThread() {
157 base::AutoLock lock(offscreen_context_for_compositor_thread_lock_);
158 DCHECK(service_);
159 bool failed = false;
160 if (!offscreen_context_for_compositor_thread_.get() ||
161 offscreen_context_for_compositor_thread_->DestroyedOnMainThread()) {
162 scoped_ptr<gpu::GLInProcessContext> context =
163 CreateContext(new gfx::GLSurfaceStub, service_, NULL);
164 wrapped_gl_context_for_compositor_thread_ = context.get();
165 offscreen_context_for_compositor_thread_ =
166 webkit::gpu::ContextProviderInProcess::Create(
167 WrapContext(context.Pass()),
168 "Compositor-Offscreen-compositor-thread");
169 failed = !offscreen_context_for_compositor_thread_.get() ||
170 !offscreen_context_for_compositor_thread_->BindToCurrentThread();
171 }
172 if (failed) {
173 offscreen_context_for_compositor_thread_ = NULL;
174 wrapped_gl_context_for_compositor_thread_ = NULL;
175 }
176 return offscreen_context_for_compositor_thread_;
177 }
178
179 scoped_refptr<cc::ContextProvider> SynchronousCompositorFactoryImpl::
CreateOnscreenContextProviderForCompositorThread(scoped_refptr<gfx::GLSurface> surface)180 CreateOnscreenContextProviderForCompositorThread(
181 scoped_refptr<gfx::GLSurface> surface) {
182 DCHECK(surface);
183 DCHECK(service_);
184 DCHECK(wrapped_gl_context_for_compositor_thread_);
185
186 return webkit::gpu::ContextProviderInProcess::Create(
187 WrapContext(CreateContext(
188 surface, service_, wrapped_gl_context_for_compositor_thread_)),
189 "Compositor-Onscreen");
190 }
191
192 scoped_ptr<StreamTextureFactory>
CreateStreamTextureFactory(int view_id)193 SynchronousCompositorFactoryImpl::CreateStreamTextureFactory(int view_id) {
194 scoped_ptr<StreamTextureFactorySynchronousImpl> factory(
195 new StreamTextureFactorySynchronousImpl(
196 base::Bind(&SynchronousCompositorFactoryImpl::
197 TryCreateStreamTextureFactory,
198 base::Unretained(this)),
199 view_id));
200 return factory.PassAs<StreamTextureFactory>();
201 }
202
CompositorInitializedHardwareDraw()203 void SynchronousCompositorFactoryImpl::CompositorInitializedHardwareDraw() {
204 base::AutoLock lock(num_hardware_compositor_lock_);
205 num_hardware_compositors_++;
206 }
207
CompositorReleasedHardwareDraw()208 void SynchronousCompositorFactoryImpl::CompositorReleasedHardwareDraw() {
209 base::AutoLock lock(num_hardware_compositor_lock_);
210 DCHECK_GT(num_hardware_compositors_, 0u);
211 num_hardware_compositors_--;
212 }
213
CanCreateMainThreadContext()214 bool SynchronousCompositorFactoryImpl::CanCreateMainThreadContext() {
215 base::AutoLock lock(num_hardware_compositor_lock_);
216 return num_hardware_compositors_ > 0;
217 }
218
219 scoped_refptr<StreamTextureFactorySynchronousImpl::ContextProvider>
TryCreateStreamTextureFactory()220 SynchronousCompositorFactoryImpl::TryCreateStreamTextureFactory() {
221 scoped_refptr<StreamTextureFactorySynchronousImpl::ContextProvider>
222 context_provider;
223 // This check only guarantees the main thread context is created after
224 // a compositor did successfully initialize hardware draw in the past.
225 // In particular this does not guarantee that the main thread context
226 // will fail creation when all compositors release hardware draw.
227 if (CanCreateMainThreadContext() && !video_context_provider_) {
228 DCHECK(service_);
229 DCHECK(wrapped_gl_context_for_compositor_thread_);
230
231 video_context_provider_ = new VideoContextProvider(
232 CreateContext(new gfx::GLSurfaceStub,
233 service_,
234 wrapped_gl_context_for_compositor_thread_));
235 }
236 return video_context_provider_;
237 }
238
SetDeferredGpuService(scoped_refptr<gpu::InProcessCommandBuffer::Service> service)239 void SynchronousCompositorFactoryImpl::SetDeferredGpuService(
240 scoped_refptr<gpu::InProcessCommandBuffer::Service> service) {
241 DCHECK(!service_);
242 gfx::GLSurface::InitializeOneOff();
243 service_ = service;
244 }
245
246 } // namespace content
247