content/common/gpu/gpu_messages.h

   1 // Copyright (c) 2012 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 // Multiply-included message file, hence no include guard here, but see below
   6 // for a much smaller-than-usual include guard section.
   7
   8 #include <string>
   9 #include <vector>
  10
  11 #include "base/memory/shared_memory.h"
  12 #include "content/common/content_export.h"
  13 #include "content/common/content_param_traits.h"
  14 #include "content/common/gpu/gpu_memory_uma_stats.h"
  15 #include "content/common/gpu/gpu_process_launch_causes.h"
  16 #include "content/common/gpu/gpu_result_codes.h"
  17 #include "content/public/common/common_param_traits.h"
  18 #include "content/public/common/gpu_memory_stats.h"
  19 #include "gpu/command_buffer/common/capabilities.h"
  20 #include "gpu/command_buffer/common/command_buffer.h"
  21 #include "gpu/command_buffer/common/constants.h"
  22 #include "gpu/command_buffer/common/gpu_memory_allocation.h"
  23 #include "gpu/command_buffer/common/mailbox.h"
  24 #include "gpu/command_buffer/common/value_state.h"
  25 #include "gpu/config/gpu_info.h"
  26 #include "gpu/ipc/gpu_command_buffer_traits.h"
  27 #include "ipc/ipc_channel_handle.h"
  28 #include "ipc/ipc_message_macros.h"
  29 #include "media/base/video_frame.h"
  30 #include "media/video/video_decode_accelerator.h"
  31 #include "media/video/video_encode_accelerator.h"
  32 #include "ui/events/latency_info.h"
  33 #include "ui/gfx/geometry/size.h"
  34 #include "ui/gfx/gpu_memory_buffer.h"
  35 #include "ui/gfx/native_widget_types.h"
  36 #include "ui/gl/gpu_preference.h"
  37
  38 #if defined(OS_ANDROID)
  39 #include "content/common/android/surface_texture_peer.h"
  40 #endif
  41
  42 #undef IPC_MESSAGE_EXPORT
  43 #define IPC_MESSAGE_EXPORT CONTENT_EXPORT
  44
  45 #define IPC_MESSAGE_START GpuMsgStart
  46
  47 IPC_ENUM_TRAITS_MAX_VALUE(content::CauseForGpuLaunch,
  48                           content::CAUSE_FOR_GPU_LAUNCH_MAX_ENUM - 1)
  49 IPC_ENUM_TRAITS_MAX_VALUE(content::CreateCommandBufferResult,
  50                           content::CREATE_COMMAND_BUFFER_RESULT_LAST)
  51 IPC_ENUM_TRAITS_MAX_VALUE(gfx::GpuPreference,
  52                           gfx::GpuPreferenceLast)
  53 IPC_ENUM_TRAITS_MAX_VALUE(gfx::SurfaceType,
  54                           gfx::SURFACE_TYPE_LAST)
  55 IPC_ENUM_TRAITS_MAX_VALUE(gpu::MemoryAllocation::PriorityCutoff,
  56                           gpu::MemoryAllocation::CUTOFF_LAST)
  57 IPC_ENUM_TRAITS_MAX_VALUE(gpu::error::Error, gpu::error::kErrorLast)
  58 IPC_ENUM_TRAITS_MAX_VALUE(gpu::error::ContextLostReason,
  59                           gpu::error::kContextLostReasonLast)
  60 IPC_ENUM_TRAITS_MAX_VALUE(media::VideoEncodeAccelerator::Error,
  61                           media::VideoEncodeAccelerator::kErrorMax)
  62 IPC_ENUM_TRAITS_MAX_VALUE(media::VideoFrame::Format,
  63                           media::VideoFrame::FORMAT_MAX)
  64 IPC_ENUM_TRAITS_MIN_MAX_VALUE(media::VideoCodecProfile,
  65                               media::VIDEO_CODEC_PROFILE_MIN,
  66                               media::VIDEO_CODEC_PROFILE_MAX)
  67 IPC_ENUM_TRAITS_MIN_MAX_VALUE(gpu::CollectInfoResult,
  68                               gpu::kCollectInfoNone,
  69                               gpu::kCollectInfoFatalFailure)
  70 IPC_ENUM_TRAITS_MIN_MAX_VALUE(gpu::VideoCodecProfile,
  71                               gpu::VIDEO_CODEC_PROFILE_MIN,
  72                               gpu::VIDEO_CODEC_PROFILE_MAX)
  73
  74 IPC_STRUCT_BEGIN(GPUCreateCommandBufferConfig)
  75   IPC_STRUCT_MEMBER(int32, share_group_id)
  76   IPC_STRUCT_MEMBER(std::vector<int>, attribs)
  77   IPC_STRUCT_MEMBER(GURL, active_url)
  78   IPC_STRUCT_MEMBER(gfx::GpuPreference, gpu_preference)
  79 IPC_STRUCT_END()
  80
  81 IPC_STRUCT_BEGIN(GpuMsg_CreateGpuMemoryBuffer_Params)
  82   IPC_STRUCT_MEMBER(int32, id)
  83   IPC_STRUCT_MEMBER(gfx::Size, size)
  84   IPC_STRUCT_MEMBER(gfx::GpuMemoryBuffer::Format, format)
  85   IPC_STRUCT_MEMBER(gfx::GpuMemoryBuffer::Usage, usage)
  86   IPC_STRUCT_MEMBER(int32, client_id)
  87   IPC_STRUCT_MEMBER(gfx::PluginWindowHandle, surface_handle)
  88 IPC_STRUCT_END()
  89
  90 IPC_STRUCT_BEGIN(GpuHostMsg_AcceleratedSurfaceBuffersSwapped_Params)
  91   IPC_STRUCT_MEMBER(int32, surface_id)
  92   IPC_STRUCT_MEMBER(uint64, surface_handle)
  93   IPC_STRUCT_MEMBER(int32, route_id)
  94   IPC_STRUCT_MEMBER(gfx::Size, size)
  95   IPC_STRUCT_MEMBER(float, scale_factor)
  96   IPC_STRUCT_MEMBER(std::vector<ui::LatencyInfo>, latency_info)
  97 IPC_STRUCT_END()
  98
  99 #if defined(OS_MACOSX)
 100 IPC_STRUCT_BEGIN(AcceleratedSurfaceMsg_BufferPresented_Params)
 101   // If the browser needs framerate throttling based on GPU back-pressure to be
 102   // disabled (e.g, because the NSView isn't visible but tab capture is active),
 103   // then this is set to true.
 104   IPC_STRUCT_MEMBER(bool, disable_throttling)
 105   // If the browser is drawing to the screen, this is the CGL renderer ID of
 106   // the GL context that the brower is using.
 107   IPC_STRUCT_MEMBER(int32, renderer_id)
 108 IPC_STRUCT_END()
 109 #endif
 110
 111 IPC_STRUCT_BEGIN(GPUCommandBufferConsoleMessage)
 112   IPC_STRUCT_MEMBER(int32, id)
 113   IPC_STRUCT_MEMBER(std::string, message)
 114 IPC_STRUCT_END()
 115
 116 #if defined(OS_ANDROID)
 117 IPC_STRUCT_BEGIN(GpuStreamTextureMsg_MatrixChanged_Params)
 118   IPC_STRUCT_MEMBER(float, m00)
 119   IPC_STRUCT_MEMBER(float, m01)
 120   IPC_STRUCT_MEMBER(float, m02)
 121   IPC_STRUCT_MEMBER(float, m03)
 122   IPC_STRUCT_MEMBER(float, m10)
 123   IPC_STRUCT_MEMBER(float, m11)
 124   IPC_STRUCT_MEMBER(float, m12)
 125   IPC_STRUCT_MEMBER(float, m13)
 126   IPC_STRUCT_MEMBER(float, m20)
 127   IPC_STRUCT_MEMBER(float, m21)
 128   IPC_STRUCT_MEMBER(float, m22)
 129   IPC_STRUCT_MEMBER(float, m23)
 130   IPC_STRUCT_MEMBER(float, m30)
 131   IPC_STRUCT_MEMBER(float, m31)
 132   IPC_STRUCT_MEMBER(float, m32)
 133   IPC_STRUCT_MEMBER(float, m33)
 134 IPC_STRUCT_END()
 135 #endif
 136
 137   IPC_STRUCT_TRAITS_BEGIN(gpu::DxDiagNode)
 138   IPC_STRUCT_TRAITS_MEMBER(values)
 139   IPC_STRUCT_TRAITS_MEMBER(children)
 140 IPC_STRUCT_TRAITS_END()
 141
 142 IPC_STRUCT_TRAITS_BEGIN(gpu::GPUInfo::GPUDevice)
 143   IPC_STRUCT_TRAITS_MEMBER(vendor_id)
 144   IPC_STRUCT_TRAITS_MEMBER(device_id)
 145   IPC_STRUCT_TRAITS_MEMBER(active)
 146   IPC_STRUCT_TRAITS_MEMBER(vendor_string)
 147   IPC_STRUCT_TRAITS_MEMBER(device_string)
 148 IPC_STRUCT_TRAITS_END()
 149
 150 IPC_STRUCT_TRAITS_BEGIN(gpu::VideoDecodeAcceleratorSupportedProfile)
 151   IPC_STRUCT_TRAITS_MEMBER(profile)
 152   IPC_STRUCT_TRAITS_MEMBER(max_resolution)
 153   IPC_STRUCT_TRAITS_MEMBER(min_resolution)
 154 IPC_STRUCT_TRAITS_END()
 155
 156 IPC_STRUCT_TRAITS_BEGIN(gpu::VideoEncodeAcceleratorSupportedProfile)
 157   IPC_STRUCT_TRAITS_MEMBER(profile)
 158   IPC_STRUCT_TRAITS_MEMBER(max_resolution)
 159   IPC_STRUCT_TRAITS_MEMBER(max_framerate_numerator)
 160   IPC_STRUCT_TRAITS_MEMBER(max_framerate_denominator)
 161 IPC_STRUCT_TRAITS_END()
 162
 163 IPC_STRUCT_TRAITS_BEGIN(gpu::GPUInfo)
 164   IPC_STRUCT_TRAITS_MEMBER(initialization_time)
 165   IPC_STRUCT_TRAITS_MEMBER(optimus)
 166   IPC_STRUCT_TRAITS_MEMBER(amd_switchable)
 167   IPC_STRUCT_TRAITS_MEMBER(lenovo_dcute)
 168   IPC_STRUCT_TRAITS_MEMBER(gpu)
 169   IPC_STRUCT_TRAITS_MEMBER(secondary_gpus)
 170   IPC_STRUCT_TRAITS_MEMBER(adapter_luid)
 171   IPC_STRUCT_TRAITS_MEMBER(driver_vendor)
 172   IPC_STRUCT_TRAITS_MEMBER(driver_version)
 173   IPC_STRUCT_TRAITS_MEMBER(driver_date)
 174   IPC_STRUCT_TRAITS_MEMBER(pixel_shader_version)
 175   IPC_STRUCT_TRAITS_MEMBER(vertex_shader_version)
 176   IPC_STRUCT_TRAITS_MEMBER(max_msaa_samples)
 177   IPC_STRUCT_TRAITS_MEMBER(machine_model_name)
 178   IPC_STRUCT_TRAITS_MEMBER(machine_model_version)
 179   IPC_STRUCT_TRAITS_MEMBER(gl_version)
 180   IPC_STRUCT_TRAITS_MEMBER(gl_vendor)
 181   IPC_STRUCT_TRAITS_MEMBER(gl_renderer)
 182   IPC_STRUCT_TRAITS_MEMBER(gl_extensions)
 183   IPC_STRUCT_TRAITS_MEMBER(gl_ws_vendor)
 184   IPC_STRUCT_TRAITS_MEMBER(gl_ws_version)
 185   IPC_STRUCT_TRAITS_MEMBER(gl_ws_extensions)
 186   IPC_STRUCT_TRAITS_MEMBER(gl_reset_notification_strategy)
 187   IPC_STRUCT_TRAITS_MEMBER(can_lose_context)
 188   IPC_STRUCT_TRAITS_MEMBER(software_rendering)
 189   IPC_STRUCT_TRAITS_MEMBER(direct_rendering)
 190   IPC_STRUCT_TRAITS_MEMBER(sandboxed)
 191   IPC_STRUCT_TRAITS_MEMBER(process_crash_count)
 192   IPC_STRUCT_TRAITS_MEMBER(basic_info_state)
 193   IPC_STRUCT_TRAITS_MEMBER(context_info_state)
 194 #if defined(OS_WIN)
 195   IPC_STRUCT_TRAITS_MEMBER(dx_diagnostics_info_state)
 196   IPC_STRUCT_TRAITS_MEMBER(dx_diagnostics)
 197 #endif
 198   IPC_STRUCT_TRAITS_MEMBER(video_decode_accelerator_supported_profiles)
 199   IPC_STRUCT_TRAITS_MEMBER(video_encode_accelerator_supported_profiles)
 200 IPC_STRUCT_TRAITS_END()
 201
 202 IPC_STRUCT_TRAITS_BEGIN(content::GPUVideoMemoryUsageStats::ProcessStats)
 203   IPC_STRUCT_TRAITS_MEMBER(video_memory)
 204   IPC_STRUCT_TRAITS_MEMBER(has_duplicates)
 205 IPC_STRUCT_TRAITS_END()
 206
 207 IPC_STRUCT_TRAITS_BEGIN(content::GPUVideoMemoryUsageStats)
 208   IPC_STRUCT_TRAITS_MEMBER(process_map)
 209   IPC_STRUCT_TRAITS_MEMBER(bytes_allocated)
 210   IPC_STRUCT_TRAITS_MEMBER(bytes_allocated_historical_max)
 211 IPC_STRUCT_TRAITS_END()
 212
 213 IPC_STRUCT_TRAITS_BEGIN(content::GPUMemoryUmaStats)
 214   IPC_STRUCT_TRAITS_MEMBER(bytes_allocated_current)
 215   IPC_STRUCT_TRAITS_MEMBER(bytes_allocated_max)
 216   IPC_STRUCT_TRAITS_MEMBER(bytes_limit)
 217 IPC_STRUCT_TRAITS_END()
 218
 219 IPC_STRUCT_TRAITS_BEGIN(gpu::MemoryAllocation)
 220   IPC_STRUCT_TRAITS_MEMBER(bytes_limit_when_visible)
 221   IPC_STRUCT_TRAITS_MEMBER(priority_cutoff_when_visible)
 222 IPC_STRUCT_TRAITS_END()
 223
 224 IPC_STRUCT_TRAITS_BEGIN(gfx::GLSurfaceHandle)
 225   IPC_STRUCT_TRAITS_MEMBER(handle)
 226   IPC_STRUCT_TRAITS_MEMBER(transport_type)
 227   IPC_STRUCT_TRAITS_MEMBER(parent_client_id)
 228 IPC_STRUCT_TRAITS_END()
 229
 230 //------------------------------------------------------------------------------
 231 // GPU Messages
 232 // These are messages from the browser to the GPU process.
 233
 234 // Tells the GPU process to initialize itself. The browser explicitly
 235 // requests this be done so that we are guaranteed that the channel is set
 236 // up between the browser and GPU process before doing any work that might
 237 // potentially crash the GPU process. Detection of the child process
 238 // exiting abruptly is predicated on having the IPC channel set up.
 239 IPC_MESSAGE_CONTROL0(GpuMsg_Initialize)
 240
 241 // Tells the GPU process to create a new channel for communication with a
 242 // given client.  The channel name is returned in a
 243 // GpuHostMsg_ChannelEstablished message.  The client ID is passed so that
 244 // the GPU process reuses an existing channel to that process if it exists.
 245 // This ID is a unique opaque identifier generated by the browser process.
 246 IPC_MESSAGE_CONTROL3(GpuMsg_EstablishChannel,
 247                      int /* client_id */,
 248                      bool /* share_context */,
 249                      bool /* allow_future_sync_points */)
 250
 251 // Tells the GPU process to close the channel identified by IPC channel
 252 // handle.  If no channel can be identified, do nothing.
 253 IPC_MESSAGE_CONTROL1(GpuMsg_CloseChannel,
 254                      IPC::ChannelHandle /* channel_handle */)
 255
 256 // Tells the GPU process to create a new command buffer that renders directly
 257 // to a native view. A corresponding GpuCommandBufferStub is created.
 258 IPC_MESSAGE_CONTROL5(GpuMsg_CreateViewCommandBuffer,
 259                      gfx::GLSurfaceHandle, /* compositing_surface */
 260                      int32, /* surface_id */
 261                      int32, /* client_id */
 262                      GPUCreateCommandBufferConfig, /* init_params */
 263                      int32 /* route_id */)
 264
 265 // Tells the GPU process to create a new gpu memory buffer.
 266 IPC_MESSAGE_CONTROL1(GpuMsg_CreateGpuMemoryBuffer,
 267                      GpuMsg_CreateGpuMemoryBuffer_Params)
 268
 269 // Tells the GPU process to destroy buffer.
 270 IPC_MESSAGE_CONTROL3(GpuMsg_DestroyGpuMemoryBuffer,
 271                      gfx::GpuMemoryBufferId, /* id */
 272                      int32, /* client_id */
 273                      int32 /* sync_point */)
 274
 275 // Tells the GPU process to create a context for collecting graphics card
 276 // information.
 277 IPC_MESSAGE_CONTROL0(GpuMsg_CollectGraphicsInfo)
 278
 279 // Tells the GPU process to report video_memory information for the task manager
 280 IPC_MESSAGE_CONTROL0(GpuMsg_GetVideoMemoryUsageStats)
 281
 282 #if defined(OS_MACOSX)
 283 // Tells the GPU process that the browser process has handled the swap
 284 // buffers or post sub-buffer request.
 285 IPC_MESSAGE_ROUTED1(AcceleratedSurfaceMsg_BufferPresented,
 286                     AcceleratedSurfaceMsg_BufferPresented_Params)
 287 #endif
 288
 289 // Tells the GPU process to wake up the GPU because we're about to draw.
 290 IPC_MESSAGE_ROUTED0(AcceleratedSurfaceMsg_WakeUpGpu)
 291
 292 // Tells the GPU process to remove all contexts.
 293 IPC_MESSAGE_CONTROL0(GpuMsg_Clean)
 294
 295 // Tells the GPU process to crash.
 296 IPC_MESSAGE_CONTROL0(GpuMsg_Crash)
 297
 298 // Tells the GPU process to hang.
 299 IPC_MESSAGE_CONTROL0(GpuMsg_Hang)
 300
 301 // Tells the GPU process to disable the watchdog thread.
 302 IPC_MESSAGE_CONTROL0(GpuMsg_DisableWatchdog)
 303
 304 // Tells the GPU process that the browser has seen a GPU switch.
 305 IPC_MESSAGE_CONTROL0(GpuMsg_GpuSwitched)
 306
 307 // Tells the GPU process to delete the default_offscreen surface. It will also
 308 // close the display and any other resources when the last GL surface is
 309 // deleted. GPU process will respond with GphHosMsg_ResourcesRelinquished.
 310 IPC_MESSAGE_CONTROL0(GpuMsg_RelinquishResources)
 311
 312 // Sends an input event to the gpu service.
 313 IPC_MESSAGE_CONTROL3(GpuMsg_UpdateValueState,
 314                      int, /* client_id */
 315                      unsigned int, /* target */
 316                      gpu::ValueState /* valuestate */)
 317
 318 //------------------------------------------------------------------------------
 319 // GPU Host Messages
 320 // These are messages to the browser.
 321
 322 // A renderer sends this when it wants to create a connection to the GPU
 323 // process. The browser will create the GPU process if necessary, and will
 324 // return a handle to the channel via a GpuChannelEstablished message.
 325 IPC_SYNC_MESSAGE_CONTROL1_3(GpuHostMsg_EstablishGpuChannel,
 326                             content::CauseForGpuLaunch,
 327                             int /* client id */,
 328                             IPC::ChannelHandle /* handle to channel */,
 329                             gpu::GPUInfo /* stats about GPU process*/)
 330
 331 // A renderer sends this to the browser process when it wants to
 332 // create a GL context associated with the given view_id.
 333 IPC_SYNC_MESSAGE_CONTROL3_1(GpuHostMsg_CreateViewCommandBuffer,
 334                             int32, /* surface_id */
 335                             GPUCreateCommandBufferConfig, /* init_params */
 336                             int32, /* route_id */
 337                             content::CreateCommandBufferResult /* result */)
 338
 339 // Response from GPU to a GputMsg_Initialize message.
 340 IPC_MESSAGE_CONTROL2(GpuHostMsg_Initialized,
 341                      bool /* result */,
 342                      ::gpu::GPUInfo /* gpu_info */)
 343
 344 // Response from GPU to a GpuHostMsg_EstablishChannel message.
 345 IPC_MESSAGE_CONTROL1(GpuHostMsg_ChannelEstablished,
 346                      IPC::ChannelHandle /* channel_handle */)
 347
 348 // Message from GPU to notify to destroy the channel.
 349 IPC_MESSAGE_CONTROL1(GpuHostMsg_DestroyChannel,
 350                      int32 /* client_id */)
 351
 352 // Message to cache the given shader information.
 353 IPC_MESSAGE_CONTROL3(GpuHostMsg_CacheShader,
 354                      int32 /* client_id */,
 355                      std::string /* key */,
 356                      std::string /* shader */)
 357
 358 // Message to the GPU that a shader was loaded from disk.
 359 IPC_MESSAGE_CONTROL1(GpuMsg_LoadedShader,
 360                      std::string /* encoded shader */)
 361
 362 // Respond from GPU to a GpuMsg_CreateViewCommandBuffer message.
 363 IPC_MESSAGE_CONTROL1(GpuHostMsg_CommandBufferCreated,
 364                      content::CreateCommandBufferResult /* result */)
 365
 366 // Request from GPU to free the browser resources associated with the
 367 // command buffer.
 368 IPC_MESSAGE_CONTROL1(GpuHostMsg_DestroyCommandBuffer,
 369                      int32 /* surface_id */)
 370
 371 // Response from GPU to a GpuMsg_CreateGpuMemoryBuffer message.
 372 IPC_MESSAGE_CONTROL1(GpuHostMsg_GpuMemoryBufferCreated,
 373                      gfx::GpuMemoryBufferHandle /* handle */)
 374
 375 // Response from GPU to a GpuMsg_CollectGraphicsInfo.
 376 IPC_MESSAGE_CONTROL1(GpuHostMsg_GraphicsInfoCollected,
 377                      gpu::GPUInfo /* GPU logging stats */)
 378
 379 // Response from GPU to a GpuMsg_GetVideoMemory.
 380 IPC_MESSAGE_CONTROL1(GpuHostMsg_VideoMemoryUsageStats,
 381                      content::GPUVideoMemoryUsageStats /* GPU memory stats */)
 382
 383 // Message from GPU to add a GPU log message to the about:gpu page.
 384 IPC_MESSAGE_CONTROL3(GpuHostMsg_OnLogMessage,
 385                      int /*severity*/,
 386                      std::string /* header */,
 387                      std::string /* message */)
 388
 389 // Tells the browser that a new accelerated surface was initialized.
 390 IPC_MESSAGE_CONTROL2(GpuHostMsg_AcceleratedSurfaceInitialized,
 391                      int32 /* surface_id */,
 392                      int32 /* route_id */)
 393
 394 // Same as above with a rect of the part of the surface that changed.
 395 IPC_MESSAGE_CONTROL1(GpuHostMsg_AcceleratedSurfaceBuffersSwapped,
 396                      GpuHostMsg_AcceleratedSurfaceBuffersSwapped_Params)
 397
 398 IPC_MESSAGE_CONTROL1(GpuHostMsg_DidCreateOffscreenContext,
 399                      GURL /* url */)
 400
 401 IPC_MESSAGE_CONTROL3(GpuHostMsg_DidLoseContext,
 402                      bool /* offscreen */,
 403                      gpu::error::ContextLostReason /* reason */,
 404                      GURL /* url */)
 405
 406 IPC_MESSAGE_CONTROL1(GpuHostMsg_DidDestroyOffscreenContext,
 407                      GURL /* url */)
 408
 409 // Tells the browser about GPU memory usage statistics for UMA logging.
 410 IPC_MESSAGE_CONTROL1(GpuHostMsg_GpuMemoryUmaStats,
 411                      content::GPUMemoryUmaStats /* GPU memory UMA stats */)
 412
 413 // Response to GpuMsg_RelinquishResources.
 414 IPC_MESSAGE_CONTROL0(GpuHostMsg_ResourcesRelinquished)
 415
 416 // Tells the browser that a context has subscribed to a new target and
 417 // the browser should start sending the corresponding information
 418 IPC_MESSAGE_CONTROL2(GpuHostMsg_AddSubscription,
 419                      int32 /* client_id */,
 420                      unsigned int /* target */)
 421
 422 // Tells the browser that no contexts are subscribed to the target anymore
 423 // so the browser should stop sending the corresponding information
 424 IPC_MESSAGE_CONTROL2(GpuHostMsg_RemoveSubscription,
 425                      int32 /* client_id */,
 426                      unsigned int /* target */)
 427
 428 //------------------------------------------------------------------------------
 429 // GPU Channel Messages
 430 // These are messages from a renderer process to the GPU process.
 431
 432 // Tells the GPU process to create a new command buffer that renders to an
 433 // offscreen frame buffer.
 434 IPC_SYNC_MESSAGE_CONTROL3_1(GpuChannelMsg_CreateOffscreenCommandBuffer,
 435                             gfx::Size, /* size */
 436                             GPUCreateCommandBufferConfig, /* init_params */
 437                             int32, /* route_id */
 438                             bool /* succeeded */)
 439
 440 // The CommandBufferProxy sends this to the GpuCommandBufferStub in its
 441 // destructor, so that the stub deletes the actual CommandBufferService
 442 // object that it's hosting.
 443 IPC_SYNC_MESSAGE_CONTROL1_0(GpuChannelMsg_DestroyCommandBuffer,
 444                             int32 /* instance_id */)
 445
 446 #if defined(OS_ANDROID)
 447 //------------------------------------------------------------------------------
 448 // Stream Texture Messages
 449 // Tells the GPU process create and send the java surface texture object to
 450 // the renderer process through the binder thread.
 451 IPC_MESSAGE_ROUTED2(GpuStreamTextureMsg_EstablishPeer,
 452                     int32, /* primary_id */
 453                     int32  /* secondary_id */)
 454
 455 // Tells the GPU process to set the size of StreamTexture from the given
 456 // stream Id.
 457 IPC_MESSAGE_ROUTED1(GpuStreamTextureMsg_SetSize,
 458                     gfx::Size /* size */)
 459
 460 // Tells the service-side instance to start sending frame available
 461 // notifications.
 462 IPC_MESSAGE_ROUTED0(GpuStreamTextureMsg_StartListening)
 463
 464 // Inform the renderer that a new frame is available.
 465 IPC_MESSAGE_ROUTED0(GpuStreamTextureMsg_FrameAvailable)
 466
 467 // Inform the renderer process that the transform matrix has changed.
 468 IPC_MESSAGE_ROUTED1(GpuStreamTextureMsg_MatrixChanged,
 469                     GpuStreamTextureMsg_MatrixChanged_Params /* params */)
 470 #endif
 471
 472 //------------------------------------------------------------------------------
 473 // GPU Command Buffer Messages
 474 // These are messages between a renderer process to the GPU process relating to
 475 // a single OpenGL context.
 476 // Initialize a command buffer with the given number of command entries.
 477 // Returns the shared memory handle for the command buffer mapped to the
 478 // calling process.
 479 IPC_SYNC_MESSAGE_ROUTED1_2(GpuCommandBufferMsg_Initialize,
 480                            base::SharedMemoryHandle /* shared_state */,
 481                            bool /* result */,
 482                            gpu::Capabilities /* capabilities */)
 483
 484 // Sets the shared memory buffer used for commands.
 485 IPC_SYNC_MESSAGE_ROUTED1_0(GpuCommandBufferMsg_SetGetBuffer,
 486                            int32 /* shm_id */)
 487
 488 // Produces the front buffer into a mailbox. This allows another context to draw
 489 // the output of this context.
 490 IPC_MESSAGE_ROUTED1(GpuCommandBufferMsg_ProduceFrontBuffer,
 491                     gpu::Mailbox /* mailbox */)
 492
 493 // Wait until the token is in a specific range, inclusive.
 494 IPC_SYNC_MESSAGE_ROUTED2_1(GpuCommandBufferMsg_WaitForTokenInRange,
 495                            int32 /* start */,
 496                            int32 /* end */,
 497                            gpu::CommandBuffer::State /* state */)
 498
 499 // Wait until the get offset is in a specific range, inclusive.
 500 IPC_SYNC_MESSAGE_ROUTED2_1(GpuCommandBufferMsg_WaitForGetOffsetInRange,
 501                            int32 /* start */,
 502                            int32 /* end */,
 503                            gpu::CommandBuffer::State /* state */)
 504
 505 // Asynchronously synchronize the put and get offsets of both processes.
 506 // Caller passes its current put offset. Current state (including get offset)
 507 // is returned in shared memory. The input latency info for the current
 508 // frame is also sent to the GPU process.
 509 IPC_MESSAGE_ROUTED3(GpuCommandBufferMsg_AsyncFlush,
 510                     int32 /* put_offset */,
 511                     uint32 /* flush_count */,
 512                     std::vector<ui::LatencyInfo> /* latency_info */)
 513
 514 // Asynchronously process any commands known to the GPU process. This is only
 515 // used in the event that a channel is unscheduled and needs to be flushed
 516 // again to process any commands issued subsequent to unscheduling. The GPU
 517 // process actually sends it (deferred) to itself.
 518 IPC_MESSAGE_ROUTED0(GpuCommandBufferMsg_Rescheduled)
 519
 520 // Sent by the GPU process to display messages in the console.
 521 IPC_MESSAGE_ROUTED1(GpuCommandBufferMsg_ConsoleMsg,
 522                     GPUCommandBufferConsoleMessage /* msg */)
 523
 524 // Register an existing shared memory transfer buffer. The id that can be
 525 // used to identify the transfer buffer from a command buffer.
 526 IPC_MESSAGE_ROUTED3(GpuCommandBufferMsg_RegisterTransferBuffer,
 527                     int32 /* id */,
 528                     base::SharedMemoryHandle /* transfer_buffer */,
 529                     uint32 /* size */)
 530
 531 // Destroy a previously created transfer buffer.
 532 IPC_MESSAGE_ROUTED1(GpuCommandBufferMsg_DestroyTransferBuffer,
 533                     int32 /* id */)
 534
 535 // Create and initialize a hardware video decoder using the specified route_id.
 536 // Created decoders should be freed with AcceleratedVideoDecoderMsg_Destroy when
 537 // no longer needed.
 538 IPC_SYNC_MESSAGE_ROUTED2_1(GpuCommandBufferMsg_CreateVideoDecoder,
 539                            media::VideoCodecProfile /* profile */,
 540                            int32, /* route_id */
 541                            bool /* succeeded */)
 542
 543 // Create and initialize a hardware video encoder using the specified route_id.
 544 // Created encoders should be freed with AcceleratedVideoEncoderMsg_Destroy when
 545 // no longer needed.
 546 IPC_SYNC_MESSAGE_ROUTED5_1(GpuCommandBufferMsg_CreateVideoEncoder,
 547                            media::VideoFrame::Format /* input_format */,
 548                            gfx::Size /* input_visible_size */,
 549                            media::VideoCodecProfile /* output_profile */,
 550                            uint32 /* initial_bitrate */,
 551                            int32, /* route_id */
 552                            bool /* succeeded */)
 553
 554 // Tells the proxy that there was an error and the command buffer had to be
 555 // destroyed for some reason.
 556 IPC_MESSAGE_ROUTED2(GpuCommandBufferMsg_Destroyed,
 557                     gpu::error::ContextLostReason, /* reason */
 558                     gpu::error::Error /* error */)
 559
 560 // Tells the browser that SwapBuffers returned and passes latency info
 561 IPC_MESSAGE_ROUTED1(GpuCommandBufferMsg_SwapBuffersCompleted,
 562                     std::vector<ui::LatencyInfo> /* latency_info */)
 563
 564 // Tells the browser about updated parameters for vsync alignment.
 565 IPC_MESSAGE_ROUTED2(GpuCommandBufferMsg_UpdateVSyncParameters,
 566                     base::TimeTicks /* timebase */,
 567                     base::TimeDelta /* interval */)
 568
 569 // Send to stub on surface visibility change.
 570 IPC_MESSAGE_ROUTED1(GpuCommandBufferMsg_SetSurfaceVisible, bool /* visible */)
 571
 572 // Sent to proxy when the gpu memory manager changes its memory allocation.
 573 IPC_MESSAGE_ROUTED1(GpuCommandBufferMsg_SetMemoryAllocation,
 574                     gpu::MemoryAllocation /* allocation */)
 575
 576 // Sent to stub when proxy is assigned a memory allocation changed callback.
 577 IPC_MESSAGE_ROUTED1(
 578     GpuCommandBufferMsg_SetClientHasMemoryAllocationChangedCallback,
 579     bool /* has_callback */)
 580
 581 // Inserts a sync point into the channel. This is handled on the IO thread, so
 582 // can be expected to be reasonably fast, but the sync point is actually
 583 // retired in order with respect to the other calls. The sync point is shared
 584 // across channels.
 585 IPC_SYNC_MESSAGE_ROUTED1_1(GpuCommandBufferMsg_InsertSyncPoint,
 586                            bool /* retire */,
 587                            uint32 /* sync_point */)
 588
 589 // Retires the sync point. Note: this message is not sent explicitly by the
 590 // renderer, but is synthesized by the GPU process.
 591 IPC_MESSAGE_ROUTED1(GpuCommandBufferMsg_RetireSyncPoint,
 592                     uint32 /* sync_point */)
 593
 594 // Makes this command buffer signal when a sync point is reached, by sending
 595 // back a GpuCommandBufferMsg_SignalSyncPointAck message with the same
 596 // signal_id.
 597 IPC_MESSAGE_ROUTED2(GpuCommandBufferMsg_SignalSyncPoint,
 598                     uint32 /* sync_point */,
 599                     uint32 /* signal_id */)
 600
 601 // Response to GpuCommandBufferMsg_SignalSyncPoint.
 602 IPC_MESSAGE_ROUTED1(GpuCommandBufferMsg_SignalSyncPointAck,
 603                     uint32 /* signal_id */)
 604
 605 // Makes this command buffer signal when a query is reached, by sending
 606 // back a GpuCommandBufferMsg_SignalSyncPointAck message with the same
 607 // signal_id.
 608 IPC_MESSAGE_ROUTED2(GpuCommandBufferMsg_SignalQuery,
 609                     uint32 /* query */,
 610                     uint32 /* signal_id */)
 611
 612 // Create an image from an existing gpu memory buffer. The id that can be
 613 // used to identify the image from a command buffer.
 614 IPC_MESSAGE_ROUTED5(GpuCommandBufferMsg_CreateImage,
 615                     int32 /* id */,
 616                     gfx::GpuMemoryBufferHandle /* gpu_memory_buffer */,
 617                     gfx::Size /* size */,
 618                     gfx::GpuMemoryBuffer::Format /* format */,
 619                     uint32 /* internalformat */)
 620
 621 // Destroy a previously created image.
 622 IPC_MESSAGE_ROUTED1(GpuCommandBufferMsg_DestroyImage,
 623                     int32 /* id */)
 624
 625 // Attaches an external image stream to the client texture.
 626 IPC_SYNC_MESSAGE_ROUTED2_1(GpuCommandBufferMsg_CreateStreamTexture,
 627                            uint32, /* client_texture_id */
 628                            int32, /* stream_id */
 629                            bool /* succeeded */)
 630
 631 //------------------------------------------------------------------------------
 632 // Accelerated Video Decoder Messages
 633 // These messages are sent from Renderer process to GPU process.
 634
 635 // Send input buffer for decoding.
 636 IPC_MESSAGE_ROUTED3(AcceleratedVideoDecoderMsg_Decode,
 637                     base::SharedMemoryHandle, /* input_buffer_handle */
 638                     int32, /* bitstream_buffer_id */
 639                     uint32) /* size */
 640
 641 // Sent from Renderer process to the GPU process to give the texture IDs for
 642 // the textures the decoder will use for output.
 643 IPC_MESSAGE_ROUTED2(AcceleratedVideoDecoderMsg_AssignPictureBuffers,
 644                     std::vector<int32>,  /* Picture buffer ID */
 645                     std::vector<uint32>) /* Texture ID */
 646
 647 // Send from Renderer process to the GPU process to recycle the given picture
 648 // buffer for further decoding.
 649 IPC_MESSAGE_ROUTED1(AcceleratedVideoDecoderMsg_ReusePictureBuffer,
 650                     int32) /* Picture buffer ID */
 651
 652 // Send flush request to the decoder.
 653 IPC_MESSAGE_ROUTED0(AcceleratedVideoDecoderMsg_Flush)
 654
 655 // Send reset request to the decoder.
 656 IPC_MESSAGE_ROUTED0(AcceleratedVideoDecoderMsg_Reset)
 657
 658 // Send destroy request to the decoder.
 659 IPC_MESSAGE_ROUTED0(AcceleratedVideoDecoderMsg_Destroy)
 660
 661 //------------------------------------------------------------------------------
 662 // Accelerated Video Decoder Host Messages
 663 // These messages are sent from GPU process to Renderer process.
 664 // Inform AcceleratedVideoDecoderHost that AcceleratedVideoDecoder has been
 665 // created.
 666
 667 // Accelerated video decoder has consumed input buffer from transfer buffer.
 668 IPC_MESSAGE_ROUTED1(AcceleratedVideoDecoderHostMsg_BitstreamBufferProcessed,
 669                     int32) /* Processed buffer ID */
 670
 671 // Allocate video frames for output of the hardware video decoder.
 672 IPC_MESSAGE_ROUTED3(
 673     AcceleratedVideoDecoderHostMsg_ProvidePictureBuffers,
 674     int32, /* Number of video frames to generate */
 675     gfx::Size, /* Requested size of buffer */
 676     uint32 ) /* Texture target */
 677
 678 // Decoder reports that a picture is ready and buffer does not need to be passed
 679 // back to the decoder.
 680 IPC_MESSAGE_ROUTED1(AcceleratedVideoDecoderHostMsg_DismissPictureBuffer,
 681                     int32) /* Picture buffer ID */
 682
 683 // Decoder reports that a picture is ready.
 684 IPC_MESSAGE_ROUTED4(AcceleratedVideoDecoderHostMsg_PictureReady,
 685                     int32,     /* Picture buffer ID */
 686                     int32,     /* Bitstream buffer ID */
 687                     gfx::Rect, /* Visible rectangle */
 688                     bool)      /* Buffer is HW overlay capable */
 689
 690 // Confirm decoder has been flushed.
 691 IPC_MESSAGE_ROUTED0(AcceleratedVideoDecoderHostMsg_FlushDone)
 692
 693 // Confirm decoder has been reset.
 694 IPC_MESSAGE_ROUTED0(AcceleratedVideoDecoderHostMsg_ResetDone)
 695
 696 // Video decoder has encountered an error.
 697 IPC_MESSAGE_ROUTED1(AcceleratedVideoDecoderHostMsg_ErrorNotification,
 698                     uint32) /* Error ID */
 699
 700 //------------------------------------------------------------------------------
 701 // Accelerated Video Encoder Messages
 702 // These messages are sent from the Renderer process to GPU process.
 703
 704 // Queue a input buffer to the encoder to encode. |frame_id| will be returned by
 705 // AcceleratedVideoEncoderHostMsg_NotifyInputDone.
 706 IPC_MESSAGE_ROUTED5(AcceleratedVideoEncoderMsg_Encode,
 707                     int32 /* frame_id */,
 708                     base::SharedMemoryHandle /* buffer_handle */,
 709                     uint32 /* buffer_offset */,
 710                     uint32 /* buffer_size */,
 711                     bool /* force_keyframe */)
 712
 713 // Queue a buffer to the encoder for use in returning output.  |buffer_id| will
 714 // be returned by AcceleratedVideoEncoderHostMsg_BitstreamBufferReady.
 715 IPC_MESSAGE_ROUTED3(AcceleratedVideoEncoderMsg_UseOutputBitstreamBuffer,
 716                     int32 /* buffer_id */,
 717                     base::SharedMemoryHandle /* buffer_handle */,
 718                     uint32 /* buffer_size */)
 719
 720 // Request a runtime encoding parameter change.
 721 IPC_MESSAGE_ROUTED2(AcceleratedVideoEncoderMsg_RequestEncodingParametersChange,
 722                     uint32 /* bitrate */,
 723                     uint32 /* framerate */)
 724
 725 //------------------------------------------------------------------------------
 726 // Accelerated Video Encoder Host Messages
 727 // These messages are sent from GPU process to Renderer process.
 728
 729 // Notify renderer of the input/output buffer requirements of the encoder.
 730 IPC_MESSAGE_ROUTED3(AcceleratedVideoEncoderHostMsg_RequireBitstreamBuffers,
 731                     uint32 /* input_count */,
 732                     gfx::Size /* input_coded_size */,
 733                     uint32 /* output_buffer_size */)
 734
 735 // Notify the renderer that the encoder has finished using an input buffer.
 736 // There is no congruent entry point in the media::VideoEncodeAccelerator
 737 // interface, in VEA this same done condition is indicated by dropping the
 738 // reference to the media::VideoFrame passed to VEA::Encode().
 739 IPC_MESSAGE_ROUTED1(AcceleratedVideoEncoderHostMsg_NotifyInputDone,
 740                     int32 /* frame_id */)
 741
 742 // Notify the renderer that an output buffer has been filled with encoded data.
 743 IPC_MESSAGE_ROUTED3(AcceleratedVideoEncoderHostMsg_BitstreamBufferReady,
 744                     int32 /* bitstream_buffer_id */,
 745                     uint32 /* payload_size */,
 746                     bool /* key_frame */)
 747
 748 // Report error condition.
 749 IPC_MESSAGE_ROUTED1(AcceleratedVideoEncoderHostMsg_NotifyError,
 750                     media::VideoEncodeAccelerator::Error /* error */)
 751
 752 // Send destroy request to the encoder.
 753 IPC_MESSAGE_ROUTED0(AcceleratedVideoEncoderMsg_Destroy)