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1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "content/renderer/pepper_platform_context_3d_impl.h" | 5 #include "content/renderer/pepper_platform_context_3d_impl.h" |
6 | 6 |
7 #include "base/bind.h" | 7 #include "base/bind.h" |
| 8 #include "content/renderer/pepper_parent_context_provider.h" |
8 #include "content/renderer/render_thread_impl.h" | 9 #include "content/renderer/render_thread_impl.h" |
9 #include "content/renderer/gpu/renderer_gl_context.h" | 10 #include "content/renderer/gpu/renderer_gl_context.h" |
10 #include "content/renderer/gpu/gpu_channel_host.h" | 11 #include "content/renderer/gpu/gpu_channel_host.h" |
11 #include "content/renderer/gpu/command_buffer_proxy.h" | 12 #include "content/renderer/gpu/command_buffer_proxy.h" |
12 #include "googleurl/src/gurl.h" | 13 #include "googleurl/src/gurl.h" |
13 #include "gpu/command_buffer/client/gles2_cmd_helper.h" | 14 #include "gpu/command_buffer/client/gles2_cmd_helper.h" |
14 #include "gpu/command_buffer/client/gles2_implementation.h" | 15 #include "gpu/command_buffer/client/gles2_implementation.h" |
15 #include "ui/gfx/gl/gpu_preference.h" | 16 #include "ui/gfx/gl/gpu_preference.h" |
16 | 17 |
17 #ifdef ENABLE_GPU | 18 #ifdef ENABLE_GPU |
18 | 19 |
19 PlatformContext3DImpl::PlatformContext3DImpl(RendererGLContext* parent_context) | 20 PlatformContext3DImpl::PlatformContext3DImpl( |
20 : parent_context_(parent_context->AsWeakPtr()), | 21 PepperParentContextProvider* parent_context_provider) |
| 22 : parent_context_provider_(parent_context_provider), |
21 parent_texture_id_(0), | 23 parent_texture_id_(0), |
22 command_buffer_(NULL), | 24 command_buffer_(NULL), |
23 weak_ptr_factory_(ALLOW_THIS_IN_INITIALIZER_LIST(this)) { | 25 weak_ptr_factory_(ALLOW_THIS_IN_INITIALIZER_LIST(this)) { |
24 } | 26 } |
25 | 27 |
26 PlatformContext3DImpl::~PlatformContext3DImpl() { | 28 PlatformContext3DImpl::~PlatformContext3DImpl() { |
27 if (parent_context_.get() && parent_texture_id_ != 0) { | 29 if (parent_context_.get() && parent_texture_id_ != 0) { |
28 // Flush any remaining commands in the parent context to make sure the | 30 // Flush any remaining commands in the parent context to make sure the |
29 // texture id accounting stays consistent. | 31 // texture id accounting stays consistent. |
30 gpu::gles2::GLES2Implementation* parent_gles2 = | 32 gpu::gles2::GLES2Implementation* parent_gles2 = |
31 parent_context_->GetImplementation(); | 33 parent_context_->GetImplementation(); |
32 parent_gles2->helper()->CommandBufferHelper::Finish(); | 34 parent_gles2->helper()->CommandBufferHelper::Finish(); |
33 parent_gles2->FreeTextureId(parent_texture_id_); | 35 parent_gles2->FreeTextureId(parent_texture_id_); |
34 } | 36 } |
35 | 37 |
36 if (command_buffer_) { | 38 if (command_buffer_) { |
37 DCHECK(channel_.get()); | 39 DCHECK(channel_.get()); |
38 channel_->DestroyCommandBuffer(command_buffer_); | 40 channel_->DestroyCommandBuffer(command_buffer_); |
39 command_buffer_ = NULL; | 41 command_buffer_ = NULL; |
| 42 if (channel_->WillGpuSwitchOccur(false, gfx::PreferDiscreteGpu)) { |
| 43 channel_->ForciblyCloseChannel(); |
| 44 } |
40 } | 45 } |
41 | 46 |
42 channel_ = NULL; | 47 channel_ = NULL; |
43 } | 48 } |
44 | 49 |
45 bool PlatformContext3DImpl::Init(const int32* attrib_list) { | 50 bool PlatformContext3DImpl::Init(const int32* attrib_list) { |
46 // Ignore initializing more than once. | 51 // Ignore initializing more than once. |
47 if (command_buffer_) | 52 if (command_buffer_) |
48 return true; | 53 return true; |
49 | 54 |
50 // Parent may already have been deleted. | 55 if (!parent_context_provider_) |
51 if (!parent_context_.get()) | |
52 return false; | 56 return false; |
53 | 57 |
54 RenderThreadImpl* render_thread = RenderThreadImpl::current(); | 58 RenderThreadImpl* render_thread = RenderThreadImpl::current(); |
55 if (!render_thread) | 59 if (!render_thread) |
56 return false; | 60 return false; |
57 | 61 |
58 channel_ = render_thread->GetGpuChannel(); | 62 bool retry = false; |
59 if (!channel_.get()) | 63 gfx::GpuPreference gpu_preference = gfx::PreferDiscreteGpu; |
60 return false; | |
61 | 64 |
62 DCHECK(channel_->state() == GpuChannelHost::kConnected); | 65 // Note similar code in WebGraphicsContext3DCommandBufferImpl::initialize. |
63 | 66 do { |
64 // Flush any remaining commands in the parent context to make sure the | 67 channel_ = render_thread->EstablishGpuChannelSync( |
65 // texture id accounting stays consistent. | 68 content::CAUSE_FOR_GPU_LAUNCH_PEPPERPLATFORMCONTEXT3DIMPL_INITIALIZE); |
66 gpu::gles2::GLES2Implementation* parent_gles2 = | 69 if (!channel_.get()) |
67 parent_context_->GetImplementation(); | 70 return false; |
68 parent_gles2->helper()->CommandBufferHelper::Finish(); | 71 DCHECK(channel_->state() == GpuChannelHost::kConnected); |
69 parent_texture_id_ = parent_gles2->MakeTextureId(); | 72 if (!retry) { |
| 73 // If the creation of this context requires all contexts for this |
| 74 // renderer to be destroyed on the GPU process side, then drop the |
| 75 // channel and recreate it. |
| 76 if (channel_->WillGpuSwitchOccur(true, gpu_preference)) { |
| 77 channel_->ForciblyCloseChannel(); |
| 78 retry = true; |
| 79 } |
| 80 } else { |
| 81 retry = false; |
| 82 } |
| 83 } while (retry); |
70 | 84 |
71 gfx::Size surface_size; | 85 gfx::Size surface_size; |
72 std::vector<int32> attribs; | 86 std::vector<int32> attribs; |
73 // TODO(alokp): Change GpuChannelHost::CreateOffscreenCommandBuffer() | 87 // TODO(alokp): Change GpuChannelHost::CreateOffscreenCommandBuffer() |
74 // interface to accept width and height in the attrib_list so that | 88 // interface to accept width and height in the attrib_list so that |
75 // we do not need to filter for width and height here. | 89 // we do not need to filter for width and height here. |
76 if (attrib_list) { | 90 if (attrib_list) { |
77 for (const int32_t* attr = attrib_list; | 91 for (const int32_t* attr = attrib_list; |
78 attr[0] != RendererGLContext::NONE; | 92 attr[0] != RendererGLContext::NONE; |
79 attr += 2) { | 93 attr += 2) { |
80 switch (attr[0]) { | 94 switch (attr[0]) { |
81 case RendererGLContext::WIDTH: | 95 case RendererGLContext::WIDTH: |
82 surface_size.set_width(attr[1]); | 96 surface_size.set_width(attr[1]); |
83 break; | 97 break; |
84 case RendererGLContext::HEIGHT: | 98 case RendererGLContext::HEIGHT: |
85 surface_size.set_height(attr[1]); | 99 surface_size.set_height(attr[1]); |
86 break; | 100 break; |
87 default: | 101 default: |
88 attribs.push_back(attr[0]); | 102 attribs.push_back(attr[0]); |
89 attribs.push_back(attr[1]); | 103 attribs.push_back(attr[1]); |
90 break; | 104 break; |
91 } | 105 } |
92 } | 106 } |
93 attribs.push_back(RendererGLContext::NONE); | 107 attribs.push_back(RendererGLContext::NONE); |
94 } | 108 } |
95 | 109 |
96 CommandBufferProxy* parent_command_buffer = | |
97 parent_context_->GetCommandBufferProxy(); | |
98 command_buffer_ = channel_->CreateOffscreenCommandBuffer( | 110 command_buffer_ = channel_->CreateOffscreenCommandBuffer( |
99 surface_size, | 111 surface_size, |
100 NULL, | 112 NULL, |
101 "*", | 113 "*", |
102 attribs, | 114 attribs, |
103 GURL::EmptyGURL(), | 115 GURL::EmptyGURL(), |
104 gfx::PreferDiscreteGpu); | 116 gpu_preference); |
105 if (!command_buffer_) | 117 if (!command_buffer_) |
106 return false; | 118 return false; |
107 | 119 |
108 if (!command_buffer_->SetParent(parent_command_buffer, parent_texture_id_)) | |
109 return false; | |
110 | |
111 command_buffer_->SetChannelErrorCallback( | 120 command_buffer_->SetChannelErrorCallback( |
112 base::Bind(&PlatformContext3DImpl::OnContextLost, | 121 base::Bind(&PlatformContext3DImpl::OnContextLost, |
113 weak_ptr_factory_.GetWeakPtr())); | 122 weak_ptr_factory_.GetWeakPtr())); |
114 | 123 |
| 124 // Fetch the parent context now, after any potential shutdown of the |
| 125 // channel due to GPU switching, and creation of the Pepper 3D |
| 126 // context with the discrete GPU preference. |
| 127 RendererGLContext* parent_context = |
| 128 parent_context_provider_->GetParentContextForPlatformContext3D(); |
| 129 if (!parent_context) |
| 130 return false; |
| 131 |
| 132 parent_context_provider_ = NULL; |
| 133 parent_context_ = parent_context->AsWeakPtr(); |
| 134 |
| 135 // Flush any remaining commands in the parent context to make sure the |
| 136 // texture id accounting stays consistent. |
| 137 gpu::gles2::GLES2Implementation* parent_gles2 = |
| 138 parent_context_->GetImplementation(); |
| 139 parent_gles2->helper()->CommandBufferHelper::Finish(); |
| 140 parent_texture_id_ = parent_gles2->MakeTextureId(); |
| 141 |
| 142 CommandBufferProxy* parent_command_buffer = |
| 143 parent_context_->GetCommandBufferProxy(); |
| 144 if (!command_buffer_->SetParent(parent_command_buffer, parent_texture_id_)) |
| 145 return false; |
| 146 |
115 return true; | 147 return true; |
116 } | 148 } |
117 | 149 |
118 unsigned PlatformContext3DImpl::GetBackingTextureId() { | 150 unsigned PlatformContext3DImpl::GetBackingTextureId() { |
119 DCHECK(command_buffer_); | 151 DCHECK(command_buffer_); |
120 return parent_texture_id_; | 152 return parent_texture_id_; |
121 } | 153 } |
122 | 154 |
123 gpu::CommandBuffer* PlatformContext3DImpl::GetCommandBuffer() { | 155 gpu::CommandBuffer* PlatformContext3DImpl::GetCommandBuffer() { |
124 return command_buffer_; | 156 return command_buffer_; |
(...skipping 13 matching lines...) Expand all Loading... |
138 } | 170 } |
139 | 171 |
140 void PlatformContext3DImpl::OnContextLost() { | 172 void PlatformContext3DImpl::OnContextLost() { |
141 DCHECK(command_buffer_); | 173 DCHECK(command_buffer_); |
142 | 174 |
143 if (!context_lost_callback_.is_null()) | 175 if (!context_lost_callback_.is_null()) |
144 context_lost_callback_.Run(); | 176 context_lost_callback_.Run(); |
145 } | 177 } |
146 | 178 |
147 #endif // ENABLE_GPU | 179 #endif // ENABLE_GPU |
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