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| 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/common/gpu/image_transport_surface_fbo_mac.h" | |
| 6 | |
| 7 #include "base/command_line.h" | |
| 8 #include "base/trace_event/trace_event.h" | |
| 9 #include "content/common/gpu/gpu_messages.h" | |
| 10 #include "content/common/gpu/image_transport_surface_calayer_mac.h" | |
| 11 #include "content/common/gpu/image_transport_surface_iosurface_mac.h" | |
| 12 #include "content/common/gpu/image_transport_surface_overlay_mac.h" | |
| 13 #include "ui/base/cocoa/remote_layer_api.h" | |
| 14 #include "ui/base/ui_base_switches.h" | |
| 15 #include "ui/gfx/native_widget_types.h" | |
| 16 #include "ui/gl/gl_context.h" | |
| 17 #include "ui/gl/gl_implementation.h" | |
| 18 #include "ui/gl/gl_surface_osmesa.h" | |
| 19 | |
| 20 namespace content { | |
| 21 | |
| 22 scoped_refptr<gfx::GLSurface> ImageTransportSurfaceCreateNativeSurface( | |
| 23 GpuChannelManager* manager, | |
| 24 GpuCommandBufferStub* stub, | |
| 25 gfx::PluginWindowHandle handle) { | |
| 26 // Overlays should be used unless the remote layer API isn't present (they | |
| 27 // depend on it) or it is disabled at the command line. | |
| 28 static bool overlays_disabled_at_command_line = | |
| 29 base::CommandLine::ForCurrentProcess()->HasSwitch( | |
| 30 switches::kDisableMacOverlays); | |
| 31 if (ui::RemoteLayerAPISupported() && !overlays_disabled_at_command_line) | |
| 32 return new ImageTransportSurfaceOverlayMac(manager, stub, handle); | |
| 33 else | |
| 34 return new ImageTransportSurfaceFBO(manager, stub, handle); | |
| 35 } | |
| 36 | |
| 37 ImageTransportSurfaceFBO::ImageTransportSurfaceFBO( | |
| 38 GpuChannelManager* manager, | |
| 39 GpuCommandBufferStub* stub, | |
| 40 gfx::PluginWindowHandle handle) | |
| 41 : backbuffer_suggested_allocation_(true), | |
| 42 frontbuffer_suggested_allocation_(true), | |
| 43 fbo_id_(0), | |
| 44 texture_id_(0), | |
| 45 depth_stencil_renderbuffer_id_(0), | |
| 46 has_complete_framebuffer_(false), | |
| 47 context_(NULL), | |
| 48 scale_factor_(1.f), | |
| 49 made_current_(false), | |
| 50 is_swap_buffers_send_pending_(false) { | |
| 51 if (ui::RemoteLayerAPISupported()) | |
| 52 storage_provider_.reset(new CALayerStorageProvider(this)); | |
| 53 else | |
| 54 storage_provider_.reset(new IOSurfaceStorageProvider(this)); | |
| 55 helper_.reset(new ImageTransportHelper(this, manager, stub, handle)); | |
| 56 } | |
| 57 | |
| 58 ImageTransportSurfaceFBO::~ImageTransportSurfaceFBO() { | |
| 59 } | |
| 60 | |
| 61 bool ImageTransportSurfaceFBO::Initialize() { | |
| 62 // Only support IOSurfaces if the GL implementation is the native desktop GL. | |
| 63 // IO surfaces will not work with, for example, OSMesa software renderer | |
| 64 // GL contexts. | |
| 65 if (gfx::GetGLImplementation() != | |
| 66 gfx::kGLImplementationDesktopGLCoreProfile && | |
| 67 gfx::GetGLImplementation() != gfx::kGLImplementationDesktopGL && | |
| 68 gfx::GetGLImplementation() != gfx::kGLImplementationAppleGL) | |
| 69 return false; | |
| 70 | |
| 71 if (!helper_->Initialize()) | |
| 72 return false; | |
| 73 | |
| 74 helper_->stub()->AddDestructionObserver(this); | |
| 75 return true; | |
| 76 } | |
| 77 | |
| 78 void ImageTransportSurfaceFBO::Destroy() { | |
| 79 DestroyFramebuffer(); | |
| 80 } | |
| 81 | |
| 82 bool ImageTransportSurfaceFBO::DeferDraws() { | |
| 83 storage_provider_->WillWriteToBackbuffer(); | |
| 84 // We should not have a pending send when we are drawing the next frame. | |
| 85 DCHECK(!is_swap_buffers_send_pending_); | |
| 86 | |
| 87 // The call to WillWriteToBackbuffer could potentially force a draw. Ensure | |
| 88 // that any changes made to the context's state are restored. | |
| 89 context_->RestoreStateIfDirtiedExternally(); | |
| 90 return false; | |
| 91 } | |
| 92 | |
| 93 bool ImageTransportSurfaceFBO::IsOffscreen() { | |
| 94 return false; | |
| 95 } | |
| 96 | |
| 97 bool ImageTransportSurfaceFBO::OnMakeCurrent(gfx::GLContext* context) { | |
| 98 context_ = context; | |
| 99 | |
| 100 if (made_current_) | |
| 101 return true; | |
| 102 | |
| 103 AllocateOrResizeFramebuffer(gfx::Size(1, 1), 1.f); | |
| 104 | |
| 105 made_current_ = true; | |
| 106 return true; | |
| 107 } | |
| 108 | |
| 109 void ImageTransportSurfaceFBO::NotifyWasBound() { | |
| 110 // Sometimes calling glBindFramebuffer doesn't seem to be enough to get | |
| 111 // rendered contents to show up in the color attachment. It appears that doing | |
| 112 // a glBegin/End pair with program 0 is enough to tickle the driver into | |
| 113 // actually effecting the binding. | |
| 114 // http://crbug.com/435786 | |
| 115 DCHECK(has_complete_framebuffer_); | |
| 116 | |
| 117 // We will restore the current program after the dummy glBegin/End pair. | |
| 118 // Ensure that we will be able to restore this state before attempting to | |
| 119 // change it. | |
| 120 GLint old_program_signed = 0; | |
| 121 glGetIntegerv(GL_CURRENT_PROGRAM, &old_program_signed); | |
| 122 GLuint old_program = static_cast<GLuint>(old_program_signed); | |
| 123 if (old_program && glIsProgram(old_program)) { | |
| 124 // A deleted program cannot be re-bound. | |
| 125 GLint delete_status = GL_FALSE; | |
| 126 glGetProgramiv(old_program, GL_DELETE_STATUS, &delete_status); | |
| 127 if (delete_status == GL_TRUE) | |
| 128 return; | |
| 129 // A program which has had the most recent link fail cannot be re-bound. | |
| 130 GLint link_status = GL_FALSE; | |
| 131 glGetProgramiv(old_program, GL_LINK_STATUS, &link_status); | |
| 132 if (link_status != GL_TRUE) | |
| 133 return; | |
| 134 } | |
| 135 | |
| 136 // Issue the dummy call and then restore the state. | |
| 137 glUseProgram(0); | |
| 138 GLenum status = glCheckFramebufferStatusEXT(GL_FRAMEBUFFER_EXT); | |
| 139 DCHECK(status == GL_FRAMEBUFFER_COMPLETE); | |
| 140 if (gfx::GetGLImplementation() == gfx::kGLImplementationDesktopGL) { | |
| 141 // These aren't present in the core profile. | |
| 142 // TODO(ccameron): verify this workaround isn't still needed with | |
| 143 // the core profile. | |
| 144 glBegin(GL_TRIANGLES); | |
| 145 glEnd(); | |
| 146 } | |
| 147 glUseProgram(old_program); | |
| 148 } | |
| 149 | |
| 150 unsigned int ImageTransportSurfaceFBO::GetBackingFrameBufferObject() { | |
| 151 return fbo_id_; | |
| 152 } | |
| 153 | |
| 154 bool ImageTransportSurfaceFBO::SetBackbufferAllocation(bool allocation) { | |
| 155 if (backbuffer_suggested_allocation_ == allocation) | |
| 156 return true; | |
| 157 backbuffer_suggested_allocation_ = allocation; | |
| 158 AdjustBufferAllocation(); | |
| 159 if (!allocation) | |
| 160 storage_provider_->DiscardBackbuffer(); | |
| 161 return true; | |
| 162 } | |
| 163 | |
| 164 void ImageTransportSurfaceFBO::SetFrontbufferAllocation(bool allocation) { | |
| 165 if (frontbuffer_suggested_allocation_ == allocation) | |
| 166 return; | |
| 167 frontbuffer_suggested_allocation_ = allocation; | |
| 168 AdjustBufferAllocation(); | |
| 169 } | |
| 170 | |
| 171 void ImageTransportSurfaceFBO::AdjustBufferAllocation() { | |
| 172 // On mac, the frontbuffer and backbuffer are the same buffer. The buffer is | |
| 173 // free'd when both the browser and gpu processes have Unref'd the IOSurface. | |
| 174 if (!backbuffer_suggested_allocation_ && | |
| 175 !frontbuffer_suggested_allocation_ && | |
| 176 has_complete_framebuffer_) { | |
| 177 DestroyFramebuffer(); | |
| 178 } else if (backbuffer_suggested_allocation_ && !has_complete_framebuffer_) { | |
| 179 AllocateOrResizeFramebuffer(pixel_size_, scale_factor_); | |
| 180 } | |
| 181 } | |
| 182 | |
| 183 gfx::SwapResult ImageTransportSurfaceFBO::SwapBuffers() { | |
| 184 TRACE_EVENT0("gpu", "ImageTransportSurfaceFBO::SwapBuffers"); | |
| 185 pending_swap_pixel_damage_rect_ = gfx::Rect(pixel_size_); | |
| 186 return SwapBuffersInternal(gfx::Rect(pixel_size_)) ? | |
| 187 gfx::SwapResult::SWAP_ACK : gfx::SwapResult::SWAP_FAILED; | |
| 188 } | |
| 189 | |
| 190 bool ImageTransportSurfaceFBO::SwapBuffersInternal( | |
| 191 const gfx::Rect& dirty_rect) { | |
| 192 DCHECK(backbuffer_suggested_allocation_); | |
| 193 if (!frontbuffer_suggested_allocation_) | |
| 194 return true; | |
| 195 | |
| 196 { | |
| 197 TRACE_EVENT0("gpu", "ImageTransportSurfaceFBO::glFlush"); | |
| 198 glFlush(); | |
| 199 } | |
| 200 | |
| 201 // It is the responsibility of the storage provider to send the swap IPC. | |
| 202 is_swap_buffers_send_pending_ = true; | |
| 203 storage_provider_->SwapBuffers(dirty_rect); | |
| 204 | |
| 205 // The call to swapBuffers could potentially result in an immediate draw. | |
| 206 // Ensure that any changes made to the context's state are restored. | |
| 207 context_->RestoreStateIfDirtiedExternally(); | |
| 208 return true; | |
| 209 } | |
| 210 | |
| 211 void ImageTransportSurfaceFBO::SendSwapBuffers(uint64 surface_handle, | |
| 212 const gfx::Size pixel_size, | |
| 213 float scale_factor) { | |
| 214 TRACE_EVENT0("gpu", "ImageTransportSurfaceFBO::SendSwapBuffers"); | |
| 215 GpuHostMsg_AcceleratedSurfaceBuffersSwapped_Params params; | |
| 216 params.surface_handle = surface_handle; | |
| 217 params.size = pixel_size; | |
| 218 params.damage_rect = pending_swap_pixel_damage_rect_; | |
| 219 params.scale_factor = scale_factor; | |
| 220 params.latency_info.swap(latency_info_); | |
| 221 helper_->SendAcceleratedSurfaceBuffersSwapped(params); | |
| 222 is_swap_buffers_send_pending_ = false; | |
| 223 pending_swap_pixel_damage_rect_ = gfx::Rect(); | |
| 224 } | |
| 225 | |
| 226 void ImageTransportSurfaceFBO::SetRendererID(int renderer_id) { | |
| 227 if (renderer_id) | |
| 228 context_->share_group()->SetRendererID(renderer_id); | |
| 229 } | |
| 230 | |
| 231 const gpu::gles2::FeatureInfo* ImageTransportSurfaceFBO::GetFeatureInfo() | |
| 232 const { | |
| 233 return helper_->stub()->GetFeatureInfo(); | |
| 234 } | |
| 235 | |
| 236 gfx::SwapResult ImageTransportSurfaceFBO::PostSubBuffer(int x, | |
| 237 int y, | |
| 238 int width, | |
| 239 int height) { | |
| 240 TRACE_EVENT0("gpu", "ImageTransportSurfaceFBO::PostSubBuffer"); | |
| 241 pending_swap_pixel_damage_rect_.Union(gfx::Rect(x, y, width, height)); | |
| 242 return SwapBuffersInternal(gfx::Rect(x, y, width, height)) ? | |
| 243 gfx::SwapResult::SWAP_ACK : gfx::SwapResult::SWAP_FAILED; | |
| 244 } | |
| 245 | |
| 246 bool ImageTransportSurfaceFBO::SupportsPostSubBuffer() { | |
| 247 return true; | |
| 248 } | |
| 249 | |
| 250 gfx::Size ImageTransportSurfaceFBO::GetSize() { | |
| 251 return pixel_size_; | |
| 252 } | |
| 253 | |
| 254 void* ImageTransportSurfaceFBO::GetHandle() { | |
| 255 return NULL; | |
| 256 } | |
| 257 | |
| 258 void* ImageTransportSurfaceFBO::GetDisplay() { | |
| 259 return NULL; | |
| 260 } | |
| 261 | |
| 262 void ImageTransportSurfaceFBO::OnBufferPresented( | |
| 263 const AcceleratedSurfaceMsg_BufferPresented_Params& params) { | |
| 264 TRACE_EVENT0("gpu", "ImageTransportSurfaceFBO::OnBufferPresented"); | |
| 265 SetRendererID(params.renderer_id); | |
| 266 storage_provider_->SwapBuffersAckedByBrowser(params.disable_throttling); | |
| 267 } | |
| 268 | |
| 269 void ImageTransportSurfaceFBO::OnResize(gfx::Size pixel_size, | |
| 270 float scale_factor) { | |
| 271 TRACE_EVENT2("gpu", "ImageTransportSurfaceFBO::OnResize", | |
| 272 "old_size", pixel_size_.ToString(), | |
| 273 "new_size", pixel_size.ToString()); | |
| 274 // Caching |context_| from OnMakeCurrent. It should still be current. | |
| 275 DCHECK(context_->IsCurrent(this)); | |
| 276 | |
| 277 AllocateOrResizeFramebuffer(pixel_size, scale_factor); | |
| 278 } | |
| 279 | |
| 280 void ImageTransportSurfaceFBO::SetLatencyInfo( | |
| 281 const std::vector<ui::LatencyInfo>& latency_info) { | |
| 282 for (size_t i = 0; i < latency_info.size(); i++) | |
| 283 latency_info_.push_back(latency_info[i]); | |
| 284 } | |
| 285 | |
| 286 void ImageTransportSurfaceFBO::OnWillDestroyStub() { | |
| 287 helper_->stub()->RemoveDestructionObserver(this); | |
| 288 Destroy(); | |
| 289 } | |
| 290 | |
| 291 void ImageTransportSurfaceFBO::DestroyFramebuffer() { | |
| 292 // If we have resources to destroy, then make sure that we have a current | |
| 293 // context which we can use to delete the resources. | |
| 294 if (context_ || fbo_id_ || texture_id_ || depth_stencil_renderbuffer_id_) { | |
| 295 DCHECK(gfx::GLContext::GetCurrent() == context_); | |
| 296 DCHECK(context_->IsCurrent(this)); | |
| 297 DCHECK(CGLGetCurrentContext()); | |
| 298 } | |
| 299 | |
| 300 if (fbo_id_) { | |
| 301 glDeleteFramebuffersEXT(1, &fbo_id_); | |
| 302 fbo_id_ = 0; | |
| 303 } | |
| 304 | |
| 305 if (texture_id_) { | |
| 306 glDeleteTextures(1, &texture_id_); | |
| 307 texture_id_ = 0; | |
| 308 } | |
| 309 | |
| 310 if (depth_stencil_renderbuffer_id_) { | |
| 311 glDeleteRenderbuffersEXT(1, &depth_stencil_renderbuffer_id_); | |
| 312 depth_stencil_renderbuffer_id_ = 0; | |
| 313 } | |
| 314 | |
| 315 storage_provider_->FreeColorBufferStorage(); | |
| 316 | |
| 317 has_complete_framebuffer_ = false; | |
| 318 } | |
| 319 | |
| 320 void ImageTransportSurfaceFBO::AllocateOrResizeFramebuffer( | |
| 321 const gfx::Size& new_pixel_size, float new_scale_factor) { | |
| 322 gfx::Size new_rounded_pixel_size = | |
| 323 storage_provider_->GetRoundedSize(new_pixel_size); | |
| 324 | |
| 325 // Only recreate the surface's storage when the rounded up size has changed, | |
| 326 // or the scale factor has changed. | |
| 327 bool needs_new_storage = | |
| 328 !has_complete_framebuffer_ || | |
| 329 new_rounded_pixel_size != rounded_pixel_size_ || | |
| 330 new_scale_factor != scale_factor_; | |
| 331 | |
| 332 // Save the new storage parameters. | |
| 333 pixel_size_ = new_pixel_size; | |
| 334 rounded_pixel_size_ = new_rounded_pixel_size; | |
| 335 scale_factor_ = new_scale_factor; | |
| 336 | |
| 337 if (!needs_new_storage) { | |
| 338 storage_provider_->FrameSizeChanged(pixel_size_, scale_factor_); | |
| 339 return; | |
| 340 } | |
| 341 | |
| 342 TRACE_EVENT2("gpu", "ImageTransportSurfaceFBO::AllocateOrResizeFramebuffer", | |
| 343 "width", new_rounded_pixel_size.width(), | |
| 344 "height", new_rounded_pixel_size.height()); | |
| 345 | |
| 346 // GL_TEXTURE_RECTANGLE_ARB is the best supported render target on | |
| 347 // Mac OS X and is required for IOSurface interoperability. | |
| 348 GLint previous_texture_id = 0; | |
| 349 | |
| 350 GLenum texture_target = GL_TEXTURE_RECTANGLE_ARB; | |
| 351 GLenum texture_binding_target = GL_TEXTURE_BINDING_RECTANGLE_ARB; | |
| 352 // However, the remote core animation path on the core profile will | |
| 353 // be the preferred combination going forward. | |
| 354 if (gfx::GetGLImplementation() == | |
| 355 gfx::kGLImplementationDesktopGLCoreProfile && | |
| 356 ui::RemoteLayerAPISupported()) { | |
| 357 texture_target = GL_TEXTURE_2D; | |
| 358 texture_binding_target = GL_TEXTURE_BINDING_2D; | |
| 359 } | |
| 360 | |
| 361 glGetIntegerv(texture_binding_target, &previous_texture_id); | |
| 362 | |
| 363 // Free the old IO Surface first to reduce memory fragmentation. | |
| 364 DestroyFramebuffer(); | |
| 365 | |
| 366 glGenFramebuffersEXT(1, &fbo_id_); | |
| 367 glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, fbo_id_); | |
| 368 | |
| 369 glGenTextures(1, &texture_id_); | |
| 370 | |
| 371 glBindTexture(texture_target, texture_id_); | |
| 372 glTexParameteri(texture_target, GL_TEXTURE_MIN_FILTER, GL_NEAREST); | |
| 373 glTexParameteri(texture_target, GL_TEXTURE_MAG_FILTER, GL_NEAREST); | |
| 374 glTexParameteri(texture_target, | |
| 375 GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); | |
| 376 glTexParameteri(texture_target, | |
| 377 GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); | |
| 378 | |
| 379 glFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, | |
| 380 GL_COLOR_ATTACHMENT0_EXT, | |
| 381 texture_target, | |
| 382 texture_id_, | |
| 383 0); | |
| 384 | |
| 385 // Search through the provided attributes; if the caller has | |
| 386 // requested a stencil buffer, try to get one. | |
| 387 | |
| 388 int32 stencil_bits = | |
| 389 helper_->stub()->GetRequestedAttribute(EGL_STENCIL_SIZE); | |
| 390 if (stencil_bits > 0) { | |
| 391 // Create and bind the stencil buffer | |
| 392 bool has_packed_depth_stencil = | |
| 393 GLSurface::ExtensionsContain( | |
| 394 reinterpret_cast<const char *>(glGetString(GL_EXTENSIONS)), | |
| 395 "GL_EXT_packed_depth_stencil"); | |
| 396 | |
| 397 if (has_packed_depth_stencil) { | |
| 398 glGenRenderbuffersEXT(1, &depth_stencil_renderbuffer_id_); | |
| 399 glBindRenderbufferEXT(GL_RENDERBUFFER_EXT, | |
| 400 depth_stencil_renderbuffer_id_); | |
| 401 glRenderbufferStorageEXT(GL_RENDERBUFFER_EXT, GL_DEPTH24_STENCIL8_EXT, | |
| 402 rounded_pixel_size_.width(), | |
| 403 rounded_pixel_size_.height()); | |
| 404 glFramebufferRenderbufferEXT(GL_FRAMEBUFFER_EXT, | |
| 405 GL_STENCIL_ATTACHMENT_EXT, | |
| 406 GL_RENDERBUFFER_EXT, | |
| 407 depth_stencil_renderbuffer_id_); | |
| 408 } | |
| 409 | |
| 410 // If we asked for stencil but the extension isn't present, | |
| 411 // it's OK to silently fail; subsequent code will/must check | |
| 412 // for the presence of a stencil buffer before attempting to | |
| 413 // do stencil-based operations. | |
| 414 } | |
| 415 | |
| 416 bool allocated_color_buffer = storage_provider_->AllocateColorBufferStorage( | |
| 417 static_cast<CGLContextObj>( | |
| 418 context_->GetHandle()), | |
| 419 context_->GetStateWasDirtiedExternallyCallback(), | |
| 420 texture_id_, rounded_pixel_size_, scale_factor_); | |
| 421 if (!allocated_color_buffer) { | |
| 422 DLOG(ERROR) << "Failed to allocate color buffer storage."; | |
| 423 DestroyFramebuffer(); | |
| 424 return; | |
| 425 } | |
| 426 | |
| 427 GLenum status = glCheckFramebufferStatusEXT(GL_FRAMEBUFFER_EXT); | |
| 428 if (status != GL_FRAMEBUFFER_COMPLETE_EXT) { | |
| 429 DLOG(ERROR) << "Framebuffer was incomplete: " << status; | |
| 430 DestroyFramebuffer(); | |
| 431 return; | |
| 432 } | |
| 433 | |
| 434 has_complete_framebuffer_ = true; | |
| 435 storage_provider_->FrameSizeChanged(pixel_size_, scale_factor_); | |
| 436 | |
| 437 glBindTexture(texture_target, previous_texture_id); | |
| 438 // The FBO remains bound for this GL context. | |
| 439 } | |
| 440 | |
| 441 } // namespace content | |
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Chromium Code Reviews
Issue 1416363002:
Mac: Always use surfaceless mode (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master