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Side by Side Diff: webkit/gpu/webgraphicscontext3d_in_process_command_buffer_impl.cc

Issue 8233027: Support dynamic switching between integrated and discrete GPUs on Mac OS X. (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src/
Patch Set: '' Created 9 years, 2 months ago
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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 #if defined(ENABLE_GPU) 5 #if defined(ENABLE_GPU)
6 6
7 #include "webkit/gpu/webgraphicscontext3d_in_process_command_buffer_impl.h" 7 #include "webkit/gpu/webgraphicscontext3d_in_process_command_buffer_impl.h"
8 8
9 #include <GLES2/gl2.h> 9 #include <GLES2/gl2.h>
10 #ifndef GL_GLEXT_PROTOTYPES 10 #ifndef GL_GLEXT_PROTOTYPES
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96 // already in place. We could add more entry points and messages to 96 // already in place. We could add more entry points and messages to
97 // allocate both fake PluginWindowHandles and NativeViewIds and map 97 // allocate both fake PluginWindowHandles and NativeViewIds and map
98 // from fake NativeViewIds to PluginWindowHandles, but this seems like 98 // from fake NativeViewIds to PluginWindowHandles, but this seems like
99 // unnecessary complexity at the moment. 99 // unnecessary complexity at the moment.
100 // 100 //
101 static GLInProcessContext* CreateViewContext( 101 static GLInProcessContext* CreateViewContext(
102 gfx::PluginWindowHandle render_surface, 102 gfx::PluginWindowHandle render_surface,
103 GLInProcessContext* context_group, 103 GLInProcessContext* context_group,
104 const char* allowed_extensions, 104 const char* allowed_extensions,
105 const int32* attrib_list, 105 const int32* attrib_list,
106 const GURL& active_arl); 106 const GURL& active_url,
107 gfx::GpuPreference gpu_preference);
107 108
108 // Create a GLInProcessContext that renders to an offscreen frame buffer. If 109 // Create a GLInProcessContext that renders to an offscreen frame buffer. If
109 // parent is not NULL, that GLInProcessContext can access a copy of the 110 // parent is not NULL, that GLInProcessContext can access a copy of the
110 // created GLInProcessContext's frame buffer that is updated every time 111 // created GLInProcessContext's frame buffer that is updated every time
111 // SwapBuffers is called. It is not as general as shared GLInProcessContexts 112 // SwapBuffers is called. It is not as general as shared GLInProcessContexts
112 // in other implementations of OpenGL. If parent is not NULL, it must be used 113 // in other implementations of OpenGL. If parent is not NULL, it must be used
113 // on the same thread as the parent. A child GLInProcessContext may not 114 // on the same thread as the parent. A child GLInProcessContext may not
114 // outlive its parent. attrib_list must be NULL or a NONE-terminated list of 115 // outlive its parent. attrib_list must be NULL or a NONE-terminated list of
115 // attribute/value pairs. 116 // attribute/value pairs.
116 static GLInProcessContext* CreateOffscreenContext( 117 static GLInProcessContext* CreateOffscreenContext(
117 GLInProcessContext* parent, 118 GLInProcessContext* parent,
118 const gfx::Size& size, 119 const gfx::Size& size,
119 GLInProcessContext* context_group, 120 GLInProcessContext* context_group,
120 const char* allowed_extensions, 121 const char* allowed_extensions,
121 const int32* attrib_list, 122 const int32* attrib_list,
122 const GURL& active_url); 123 const GURL& active_url,
124 gfx::GpuPreference gpu_preference);
123 125
124 // For an offscreen frame buffer GLInProcessContext, return the texture ID 126 // For an offscreen frame buffer GLInProcessContext, return the texture ID
125 // with respect to the parent GLInProcessContext. Returns zero if 127 // with respect to the parent GLInProcessContext. Returns zero if
126 // GLInProcessContext does not have a parent. 128 // GLInProcessContext does not have a parent.
127 uint32 GetParentTextureId(); 129 uint32 GetParentTextureId();
128 130
129 // Create a new texture in the parent's GLInProcessContext. Returns zero if 131 // Create a new texture in the parent's GLInProcessContext. Returns zero if
130 // GLInProcessContext does not have a parent. 132 // GLInProcessContext does not have a parent.
131 uint32 CreateParentTexture(const gfx::Size& size); 133 uint32 CreateParentTexture(const gfx::Size& size);
132 134
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166 168
167 private: 169 private:
168 GLInProcessContext(GLInProcessContext* parent); 170 GLInProcessContext(GLInProcessContext* parent);
169 171
170 bool Initialize(bool onscreen, 172 bool Initialize(bool onscreen,
171 gfx::PluginWindowHandle render_surface, 173 gfx::PluginWindowHandle render_surface,
172 const gfx::Size& size, 174 const gfx::Size& size,
173 GLInProcessContext* context_group, 175 GLInProcessContext* context_group,
174 const char* allowed_extensions, 176 const char* allowed_extensions,
175 const int32* attrib_list, 177 const int32* attrib_list,
176 const GURL& active_url); 178 const GURL& active_url,
179 gfx::GpuPreference gpu_preference);
177 void Destroy(); 180 void Destroy();
178 181
179 void OnSwapBuffers(); 182 void OnSwapBuffers();
180 void OnContextLost(); 183 void OnContextLost();
181 184
182 base::WeakPtr<GLInProcessContext> parent_; 185 base::WeakPtr<GLInProcessContext> parent_;
183 scoped_ptr<Callback0::Type> swap_buffers_callback_; 186 scoped_ptr<Callback0::Type> swap_buffers_callback_;
184 scoped_ptr<Callback0::Type> context_lost_callback_; 187 scoped_ptr<Callback0::Type> context_lost_callback_;
185 uint32 parent_texture_id_; 188 uint32 parent_texture_id_;
186 scoped_ptr<CommandBufferService> command_buffer_; 189 scoped_ptr<CommandBufferService> command_buffer_;
(...skipping 46 matching lines...) Expand 10 before | Expand all | Expand 10 after
233 236
234 GLInProcessContext::~GLInProcessContext() { 237 GLInProcessContext::~GLInProcessContext() {
235 Destroy(); 238 Destroy();
236 } 239 }
237 240
238 GLInProcessContext* GLInProcessContext::CreateViewContext( 241 GLInProcessContext* GLInProcessContext::CreateViewContext(
239 gfx::PluginWindowHandle render_surface, 242 gfx::PluginWindowHandle render_surface,
240 GLInProcessContext* context_group, 243 GLInProcessContext* context_group,
241 const char* allowed_extensions, 244 const char* allowed_extensions,
242 const int32* attrib_list, 245 const int32* attrib_list,
243 const GURL& active_url) { 246 const GURL& active_url,
247 gfx::GpuPreference gpu_preference) {
244 #if defined(ENABLE_GPU) 248 #if defined(ENABLE_GPU)
245 scoped_ptr<GLInProcessContext> context(new GLInProcessContext(NULL)); 249 scoped_ptr<GLInProcessContext> context(new GLInProcessContext(NULL));
246 if (!context->Initialize( 250 if (!context->Initialize(
247 true, 251 true,
248 render_surface, 252 render_surface,
249 gfx::Size(), 253 gfx::Size(),
250 context_group, 254 context_group,
251 allowed_extensions, 255 allowed_extensions,
252 attrib_list, 256 attrib_list,
253 active_url)) 257 active_url,
258 gpu_preference))
254 return NULL; 259 return NULL;
255 260
256 return context.release(); 261 return context.release();
257 #else 262 #else
258 return NULL; 263 return NULL;
259 #endif 264 #endif
260 } 265 }
261 266
262 GLInProcessContext* GLInProcessContext::CreateOffscreenContext( 267 GLInProcessContext* GLInProcessContext::CreateOffscreenContext(
263 GLInProcessContext* parent, 268 GLInProcessContext* parent,
264 const gfx::Size& size, 269 const gfx::Size& size,
265 GLInProcessContext* context_group, 270 GLInProcessContext* context_group,
266 const char* allowed_extensions, 271 const char* allowed_extensions,
267 const int32* attrib_list, 272 const int32* attrib_list,
268 const GURL& active_url) { 273 const GURL& active_url,
274 gfx::GpuPreference gpu_preference) {
269 #if defined(ENABLE_GPU) 275 #if defined(ENABLE_GPU)
270 scoped_ptr<GLInProcessContext> context(new GLInProcessContext(parent)); 276 scoped_ptr<GLInProcessContext> context(new GLInProcessContext(parent));
271 if (!context->Initialize( 277 if (!context->Initialize(
272 false, 278 false,
273 gfx::kNullPluginWindow, 279 gfx::kNullPluginWindow,
274 size, 280 size,
275 context_group, 281 context_group,
276 allowed_extensions, 282 allowed_extensions,
277 attrib_list, 283 attrib_list,
278 active_url)) 284 active_url,
285 gpu_preference))
279 return NULL; 286 return NULL;
280 287
281 return context.release(); 288 return context.release();
282 #else 289 #else
283 return NULL; 290 return NULL;
284 #endif 291 #endif
285 } 292 }
286 293
287 // In the normal command buffer implementation, all commands are passed over IPC 294 // In the normal command buffer implementation, all commands are passed over IPC
288 // to the gpu process where they are fed to the GLES2Decoder from a single 295 // to the gpu process where they are fed to the GLES2Decoder from a single
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390 transfer_buffer_id_(-1), 397 transfer_buffer_id_(-1),
391 last_error_(SUCCESS) { 398 last_error_(SUCCESS) {
392 } 399 }
393 400
394 bool GLInProcessContext::Initialize(bool onscreen, 401 bool GLInProcessContext::Initialize(bool onscreen,
395 gfx::PluginWindowHandle render_surface, 402 gfx::PluginWindowHandle render_surface,
396 const gfx::Size& size, 403 const gfx::Size& size,
397 GLInProcessContext* context_group, 404 GLInProcessContext* context_group,
398 const char* allowed_extensions, 405 const char* allowed_extensions,
399 const int32* attrib_list, 406 const int32* attrib_list,
400 const GURL& active_url) { 407 const GURL& active_url,
408 gfx::GpuPreference gpu_preference) {
401 // Use one share group for all contexts. 409 // Use one share group for all contexts.
402 static scoped_refptr<gfx::GLShareGroup> share_group(new gfx::GLShareGroup); 410 static scoped_refptr<gfx::GLShareGroup> share_group(new gfx::GLShareGroup);
403 411
404 DCHECK(size.width() >= 0 && size.height() >= 0); 412 DCHECK(size.width() >= 0 && size.height() >= 0);
405 413
406 // Ensure the gles2 library is initialized first in a thread safe way. 414 // Ensure the gles2 library is initialized first in a thread safe way.
407 g_gles2_initializer.Get(); 415 g_gles2_initializer.Get();
408 416
409 // Allocate a frame buffer ID with respect to the parent. 417 // Allocate a frame buffer ID with respect to the parent.
410 if (parent_.get()) { 418 if (parent_.get()) {
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473 surface_ = gfx::GLSurface::CreateOffscreenGLSurface(false, 481 surface_ = gfx::GLSurface::CreateOffscreenGLSurface(false,
474 gfx::Size(1, 1)); 482 gfx::Size(1, 1));
475 } 483 }
476 484
477 if (!surface_.get()) { 485 if (!surface_.get()) {
478 LOG(ERROR) << "Could not create GLSurface."; 486 LOG(ERROR) << "Could not create GLSurface.";
479 Destroy(); 487 Destroy();
480 return false; 488 return false;
481 } 489 }
482 490
483 context_ = gfx::GLContext::CreateGLContext(share_group.get(), surface_.get()); 491 context_ = gfx::GLContext::CreateGLContext(share_group.get(),
492 surface_.get(),
493 gpu_preference);
484 if (!context_.get()) { 494 if (!context_.get()) {
485 LOG(ERROR) << "Could not create GLContext."; 495 LOG(ERROR) << "Could not create GLContext.";
486 Destroy(); 496 Destroy();
487 return false; 497 return false;
488 } 498 }
489 499
490 if (!decoder_->Initialize(surface_.get(), 500 if (!decoder_->Initialize(surface_.get(),
491 context_.get(), 501 context_.get(),
492 size, 502 size,
493 ::gpu::gles2::DisallowedFeatures(), 503 ::gpu::gles2::DisallowedFeatures(),
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618 GLInProcessContext::ALPHA_SIZE, alpha_size, 628 GLInProcessContext::ALPHA_SIZE, alpha_size,
619 GLInProcessContext::DEPTH_SIZE, depth_size, 629 GLInProcessContext::DEPTH_SIZE, depth_size,
620 GLInProcessContext::STENCIL_SIZE, stencil_size, 630 GLInProcessContext::STENCIL_SIZE, stencil_size,
621 GLInProcessContext::SAMPLES, samples, 631 GLInProcessContext::SAMPLES, samples,
622 GLInProcessContext::SAMPLE_BUFFERS, sample_buffers, 632 GLInProcessContext::SAMPLE_BUFFERS, sample_buffers,
623 GLInProcessContext::NONE, 633 GLInProcessContext::NONE,
624 }; 634 };
625 635
626 const char* preferred_extensions = "*"; 636 const char* preferred_extensions = "*";
627 637
638 // TODO(kbr): More work will be needed in this implementation to
639 // properly support GPU switching. Like in the out-of-process
640 // command buffer implementation, all previously created contexts
641 // will need to be lost either when the first context requesting the
642 // discrete GPU is created, or the last one is destroyed.
643 gfx::GpuPreference gpu_preference = gfx::PreferDiscreteGpu;
644
628 GURL active_url; 645 GURL active_url;
629 if (web_view && web_view->mainFrame()) 646 if (web_view && web_view->mainFrame())
630 active_url = GURL(web_view->mainFrame()->document().url()); 647 active_url = GURL(web_view->mainFrame()->document().url());
631 648
632 GLInProcessContext* parent_context = NULL; 649 GLInProcessContext* parent_context = NULL;
633 if (!render_directly_to_web_view) { 650 if (!render_directly_to_web_view) {
634 WebKit::WebGraphicsContext3D* view_context = 651 WebKit::WebGraphicsContext3D* view_context =
635 web_view ? web_view->graphicsContext3D() : NULL; 652 web_view ? web_view->graphicsContext3D() : NULL;
636 if (view_context) { 653 if (view_context) {
637 WebGraphicsContext3DInProcessCommandBufferImpl* context_impl = 654 WebGraphicsContext3DInProcessCommandBufferImpl* context_impl =
638 static_cast<WebGraphicsContext3DInProcessCommandBufferImpl*>( 655 static_cast<WebGraphicsContext3DInProcessCommandBufferImpl*>(
639 view_context); 656 view_context);
640 parent_context = context_impl->context_; 657 parent_context = context_impl->context_;
641 } 658 }
642 } 659 }
643 660
644 WebGraphicsContext3DInProcessCommandBufferImpl* context_group = NULL; 661 WebGraphicsContext3DInProcessCommandBufferImpl* context_group = NULL;
645 base::AutoLock lock(g_all_shared_contexts_lock.Get()); 662 base::AutoLock lock(g_all_shared_contexts_lock.Get());
646 if (attributes.shareResources) 663 if (attributes.shareResources)
647 context_group = g_all_shared_contexts.Pointer()->empty() ? 664 context_group = g_all_shared_contexts.Pointer()->empty() ?
648 NULL : *g_all_shared_contexts.Pointer()->begin(); 665 NULL : *g_all_shared_contexts.Pointer()->begin();
649 666
650 context_ = GLInProcessContext::CreateOffscreenContext( 667 context_ = GLInProcessContext::CreateOffscreenContext(
651 parent_context, 668 parent_context,
652 gfx::Size(1, 1), 669 gfx::Size(1, 1),
653 context_group ? context_group->context_ : NULL, 670 context_group ? context_group->context_ : NULL,
654 preferred_extensions, 671 preferred_extensions,
655 attribs, 672 attribs,
656 active_url); 673 active_url,
674 gpu_preference);
657 web_view_ = NULL; 675 web_view_ = NULL;
658 676
659 if (!context_) 677 if (!context_)
660 return false; 678 return false;
661 679
662 gl_ = context_->GetImplementation(); 680 gl_ = context_->GetImplementation();
663 681
664 if (gl_ && attributes.noExtensions) 682 if (gl_ && attributes.noExtensions)
665 gl_->EnableFeatureCHROMIUM("webgl_enable_glsl_webgl_validation"); 683 gl_->EnableFeatureCHROMIUM("webgl_enable_glsl_webgl_validation");
666 684
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1609 context_lost_reason_ = GL_UNKNOWN_CONTEXT_RESET_ARB; 1627 context_lost_reason_ = GL_UNKNOWN_CONTEXT_RESET_ARB;
1610 if (context_lost_callback_) { 1628 if (context_lost_callback_) {
1611 context_lost_callback_->onContextLost(); 1629 context_lost_callback_->onContextLost();
1612 } 1630 }
1613 } 1631 }
1614 1632
1615 } // namespace gpu 1633 } // namespace gpu
1616 } // namespace webkit 1634 } // namespace webkit
1617 1635
1618 #endif // defined(ENABLE_GPU) 1636 #endif // defined(ENABLE_GPU)
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