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| 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 | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #include "webkit/plugins/ppapi/ppb_context_3d_impl.h" | |
| 6 | |
| 7 #include "base/bind.h" | |
| 8 #include "base/logging.h" | |
| 9 #include "base/shared_memory.h" | |
| 10 #include "gpu/command_buffer/client/gles2_cmd_helper.h" | |
| 11 #include "gpu/command_buffer/client/gles2_implementation.h" | |
| 12 #include "gpu/command_buffer/common/command_buffer.h" | |
| 13 #include "ppapi/c/dev/ppb_context_3d_trusted_dev.h" | |
| 14 #include "ppapi/thunk/enter.h" | |
| 15 #include "webkit/plugins/ppapi/common.h" | |
| 16 #include "webkit/plugins/ppapi/ppapi_plugin_instance.h" | |
| 17 #include "webkit/plugins/ppapi/ppb_surface_3d_impl.h" | |
| 18 #include "webkit/plugins/ppapi/resource_helper.h" | |
| 19 | |
| 20 using ppapi::thunk::EnterResourceNoLock; | |
| 21 using ppapi::thunk::PPB_Context3D_API; | |
| 22 using ppapi::thunk::PPB_Surface3D_API; | |
| 23 | |
| 24 namespace webkit { | |
| 25 namespace ppapi { | |
| 26 | |
| 27 namespace { | |
| 28 | |
| 29 // Size of the transfer buffer. | |
| 30 const int32 kCommandBufferSize = 1024 * 1024; | |
| 31 const int32 kTransferBufferSize = 1024 * 1024; | |
| 32 | |
| 33 PP_Bool ShmToHandle(base::SharedMemory* shm, | |
| 34 size_t size, | |
| 35 int* shm_handle, | |
| 36 uint32_t* shm_size) { | |
| 37 if (!shm || !shm_handle || !shm_size) | |
| 38 return PP_FALSE; | |
| 39 #if defined(OS_POSIX) | |
| 40 *shm_handle = shm->handle().fd; | |
| 41 #elif defined(OS_WIN) | |
| 42 *shm_handle = reinterpret_cast<int>(shm->handle()); | |
| 43 #else | |
| 44 #error "Platform not supported." | |
| 45 #endif | |
| 46 *shm_size = size; | |
| 47 return PP_TRUE; | |
| 48 } | |
| 49 | |
| 50 PP_Context3DTrustedState GetErrorState() { | |
| 51 PP_Context3DTrustedState error_state = { 0 }; | |
| 52 error_state.error = kGenericError; | |
| 53 return error_state; | |
| 54 } | |
| 55 | |
| 56 PP_Context3DTrustedState PPStateFromGPUState( | |
| 57 const gpu::CommandBuffer::State& s) { | |
| 58 PP_Context3DTrustedState state = { | |
| 59 s.num_entries, | |
| 60 s.get_offset, | |
| 61 s.put_offset, | |
| 62 s.token, | |
| 63 static_cast<PPB_Context3DTrustedError>(s.error), | |
| 64 s.generation | |
| 65 }; | |
| 66 return state; | |
| 67 } | |
| 68 | |
| 69 } // namespace | |
| 70 | |
| 71 PPB_Context3D_Impl::PPB_Context3D_Impl(PP_Instance instance) | |
| 72 : Resource(instance), | |
| 73 transfer_buffer_id_(0), | |
| 74 draw_surface_(NULL), | |
| 75 read_surface_(NULL), | |
| 76 weak_ptr_factory_(ALLOW_THIS_IN_INITIALIZER_LIST(this)) { | |
| 77 } | |
| 78 | |
| 79 PPB_Context3D_Impl::~PPB_Context3D_Impl() { | |
| 80 Destroy(); | |
| 81 } | |
| 82 | |
| 83 // static | |
| 84 PP_Resource PPB_Context3D_Impl::Create(PP_Instance instance, | |
| 85 PP_Config3D_Dev config, | |
| 86 PP_Resource share_context, | |
| 87 const int32_t* attrib_list) { | |
| 88 // TODO(alokp): Support shared context. | |
| 89 DCHECK_EQ(0, share_context); | |
| 90 if (share_context != 0) | |
| 91 return 0; | |
| 92 | |
| 93 scoped_refptr<PPB_Context3D_Impl> context(new PPB_Context3D_Impl(instance)); | |
| 94 if (!context->Init(config, share_context, attrib_list)) | |
| 95 return 0; | |
| 96 | |
| 97 return context->GetReference(); | |
| 98 } | |
| 99 | |
| 100 // static | |
| 101 PP_Resource PPB_Context3D_Impl::CreateRaw(PP_Instance instance, | |
| 102 PP_Config3D_Dev config, | |
| 103 PP_Resource share_context, | |
| 104 const int32_t* attrib_list) { | |
| 105 // TODO(alokp): Support shared context. | |
| 106 DCHECK_EQ(0, share_context); | |
| 107 if (share_context != 0) | |
| 108 return 0; | |
| 109 | |
| 110 scoped_refptr<PPB_Context3D_Impl> context(new PPB_Context3D_Impl(instance)); | |
| 111 if (!context->InitRaw(config, share_context, attrib_list)) | |
| 112 return 0; | |
| 113 | |
| 114 return context->GetReference(); | |
| 115 } | |
| 116 | |
| 117 PPB_Context3D_API* PPB_Context3D_Impl::AsPPB_Context3D_API() { | |
| 118 return this; | |
| 119 } | |
| 120 | |
| 121 int32_t PPB_Context3D_Impl::GetAttrib(int32_t attribute, int32_t* value) { | |
| 122 // TODO(alokp): Implement me. | |
| 123 return 0; | |
| 124 } | |
| 125 | |
| 126 int32_t PPB_Context3D_Impl::BindSurfaces(PP_Resource draw, PP_Resource read) { | |
| 127 EnterResourceNoLock<PPB_Surface3D_API> enter_draw(draw, true); | |
| 128 if (enter_draw.failed()) | |
| 129 return PP_ERROR_BADRESOURCE; | |
| 130 PPB_Surface3D_Impl* new_draw = | |
| 131 static_cast<PPB_Surface3D_Impl*>(enter_draw.object()); | |
| 132 | |
| 133 EnterResourceNoLock<PPB_Surface3D_API> enter_read(read, true); | |
| 134 if (enter_read.failed()) | |
| 135 return PP_ERROR_BADRESOURCE; | |
| 136 PPB_Surface3D_Impl* new_read = | |
| 137 static_cast<PPB_Surface3D_Impl*>(enter_read.object()); | |
| 138 return BindSurfacesImpl(new_draw, new_read); | |
| 139 } | |
| 140 | |
| 141 int32_t PPB_Context3D_Impl::BindSurfacesImpl(PPB_Surface3D_Impl* new_draw, | |
| 142 PPB_Surface3D_Impl* new_read) { | |
| 143 // TODO(alokp): Support separate draw-read surfaces. | |
| 144 DCHECK_EQ(new_draw, new_read); | |
| 145 if (new_draw != new_read) | |
| 146 return PP_ERROR_NOTSUPPORTED; | |
| 147 | |
| 148 if (new_draw == draw_surface_) | |
| 149 return PP_OK; | |
| 150 | |
| 151 if (new_draw && new_draw->context()) | |
| 152 return PP_ERROR_BADARGUMENT; // Already bound. | |
| 153 | |
| 154 if (draw_surface_) | |
| 155 draw_surface_->BindToContext(NULL); | |
| 156 if (new_draw && !new_draw->BindToContext(this)) | |
| 157 return PP_ERROR_NOMEMORY; | |
| 158 | |
| 159 draw_surface_ = new_draw; | |
| 160 read_surface_ = new_read; | |
| 161 return PP_OK; | |
| 162 } | |
| 163 | |
| 164 int32_t PPB_Context3D_Impl::GetBoundSurfaces(PP_Resource* draw, | |
| 165 PP_Resource* read) { | |
| 166 // TODO(alokp): Implement me. | |
| 167 return 0; | |
| 168 } | |
| 169 | |
| 170 PP_Bool PPB_Context3D_Impl::InitializeTrusted(int32_t size) { | |
| 171 if (!platform_context_.get()) | |
| 172 return PP_FALSE; | |
| 173 return PP_FromBool(platform_context_->GetCommandBuffer()->Initialize(size)); | |
| 174 } | |
| 175 | |
| 176 PP_Bool PPB_Context3D_Impl::GetRingBuffer(int* shm_handle, | |
| 177 uint32_t* shm_size) { | |
| 178 if (!platform_context_.get()) | |
| 179 return PP_FALSE; | |
| 180 gpu::Buffer buffer = platform_context_->GetCommandBuffer()->GetRingBuffer(); | |
| 181 return ShmToHandle(buffer.shared_memory, buffer.size, shm_handle, shm_size); | |
| 182 } | |
| 183 | |
| 184 PP_Context3DTrustedState PPB_Context3D_Impl::GetState() { | |
| 185 if (!platform_context_.get()) | |
| 186 return GetErrorState(); | |
| 187 return PPStateFromGPUState(platform_context_->GetCommandBuffer()->GetState()); | |
| 188 } | |
| 189 | |
| 190 PP_Bool PPB_Context3D_Impl::Flush(int32_t put_offset) { | |
| 191 if (!platform_context_.get()) | |
| 192 return PP_FALSE; | |
| 193 platform_context_->GetCommandBuffer()->Flush(put_offset); | |
| 194 return PP_TRUE; | |
| 195 } | |
| 196 | |
| 197 PP_Context3DTrustedState PPB_Context3D_Impl::FlushSync(int32_t put_offset) { | |
| 198 if (!platform_context_.get()) | |
| 199 return GetErrorState(); | |
| 200 gpu::CommandBuffer::State state = | |
| 201 platform_context_->GetCommandBuffer()->GetState(); | |
| 202 return PPStateFromGPUState( | |
| 203 platform_context_->GetCommandBuffer()->FlushSync(put_offset, | |
| 204 state.get_offset)); | |
| 205 } | |
| 206 | |
| 207 int32_t PPB_Context3D_Impl::CreateTransferBuffer(uint32_t size) { | |
| 208 if (!platform_context_.get()) | |
| 209 return 0; | |
| 210 return platform_context_->GetCommandBuffer()->CreateTransferBuffer(size, -1); | |
| 211 } | |
| 212 | |
| 213 PP_Bool PPB_Context3D_Impl::DestroyTransferBuffer(int32_t id) { | |
| 214 if (!platform_context_.get()) | |
| 215 return PP_FALSE; | |
| 216 platform_context_->GetCommandBuffer()->DestroyTransferBuffer(id); | |
| 217 return PP_TRUE; | |
| 218 } | |
| 219 | |
| 220 PP_Bool PPB_Context3D_Impl::GetTransferBuffer(int32_t id, | |
| 221 int* shm_handle, | |
| 222 uint32_t* shm_size) { | |
| 223 if (!platform_context_.get()) | |
| 224 return PP_FALSE; | |
| 225 gpu::Buffer buffer = | |
| 226 platform_context_->GetCommandBuffer()->GetTransferBuffer(id); | |
| 227 return ShmToHandle(buffer.shared_memory, buffer.size, shm_handle, shm_size); | |
| 228 } | |
| 229 | |
| 230 PP_Context3DTrustedState PPB_Context3D_Impl::FlushSyncFast( | |
| 231 int32_t put_offset, | |
| 232 int32_t last_known_get) { | |
| 233 if (!platform_context_.get()) | |
| 234 return GetErrorState(); | |
| 235 return PPStateFromGPUState( | |
| 236 platform_context_->GetCommandBuffer()->FlushSync(put_offset, | |
| 237 last_known_get)); | |
| 238 } | |
| 239 | |
| 240 void* PPB_Context3D_Impl::MapTexSubImage2DCHROMIUM(GLenum target, | |
| 241 GLint level, | |
| 242 GLint xoffset, | |
| 243 GLint yoffset, | |
| 244 GLsizei width, | |
| 245 GLsizei height, | |
| 246 GLenum format, | |
| 247 GLenum type, | |
| 248 GLenum access) { | |
| 249 if (!gles2_impl_.get()) | |
| 250 return NULL; | |
| 251 return gles2_impl_->MapTexSubImage2DCHROMIUM( | |
| 252 target, level, xoffset, yoffset, width, height, format, type, access); | |
| 253 } | |
| 254 | |
| 255 void PPB_Context3D_Impl::UnmapTexSubImage2DCHROMIUM(const void* mem) { | |
| 256 if (gles2_impl_.get()) | |
| 257 gles2_impl_->UnmapTexSubImage2DCHROMIUM(mem); | |
| 258 } | |
| 259 | |
| 260 gpu::gles2::GLES2Implementation* PPB_Context3D_Impl::GetGLES2Impl() { | |
| 261 return gles2_impl(); | |
| 262 } | |
| 263 | |
| 264 bool PPB_Context3D_Impl::Init(PP_Config3D_Dev config, | |
| 265 PP_Resource share_context, | |
| 266 const int32_t* attrib_list) { | |
| 267 if (!InitRaw(config, share_context, attrib_list)) | |
| 268 return false; | |
| 269 | |
| 270 if (!CreateImplementation()) { | |
| 271 Destroy(); | |
| 272 return false; | |
| 273 } | |
| 274 | |
| 275 return true; | |
| 276 } | |
| 277 | |
| 278 bool PPB_Context3D_Impl::InitRaw(PP_Config3D_Dev config, | |
| 279 PP_Resource share_context, | |
| 280 const int32_t* attrib_list) { | |
| 281 PluginInstance* plugin_instance = ResourceHelper::GetPluginInstance(this); | |
| 282 if (!plugin_instance) | |
| 283 return false; | |
| 284 | |
| 285 // Create and initialize the objects required to issue GLES2 calls. | |
| 286 platform_context_.reset(plugin_instance->CreateContext3D()); | |
| 287 if (!platform_context_.get()) { | |
| 288 Destroy(); | |
| 289 return false; | |
| 290 } | |
| 291 | |
| 292 static const int32 kAttribs[] = { | |
| 293 PP_GRAPHICS3DATTRIB_ALPHA_SIZE, 8, | |
| 294 PP_GRAPHICS3DATTRIB_DEPTH_SIZE, 24, | |
| 295 PP_GRAPHICS3DATTRIB_STENCIL_SIZE, 8, | |
| 296 PP_GRAPHICS3DATTRIB_SAMPLES, 0, | |
| 297 PP_GRAPHICS3DATTRIB_SAMPLE_BUFFERS, 0, | |
| 298 PP_GRAPHICS3DATTRIB_HEIGHT, 1, | |
| 299 PP_GRAPHICS3DATTRIB_WIDTH, 1, | |
| 300 PP_GRAPHICS3DATTRIB_NONE, | |
| 301 }; | |
| 302 if (!platform_context_->Init(kAttribs)) { | |
| 303 Destroy(); | |
| 304 return false; | |
| 305 } | |
| 306 | |
| 307 platform_context_->SetContextLostCallback( | |
| 308 base::Bind(&PPB_Context3D_Impl::OnContextLost, | |
| 309 weak_ptr_factory_.GetWeakPtr())); | |
| 310 return true; | |
| 311 } | |
| 312 | |
| 313 bool PPB_Context3D_Impl::CreateImplementation() { | |
| 314 gpu::CommandBuffer* command_buffer = platform_context_->GetCommandBuffer(); | |
| 315 DCHECK(command_buffer); | |
| 316 | |
| 317 if (!command_buffer->Initialize(kCommandBufferSize)) | |
| 318 return false; | |
| 319 | |
| 320 // Create the GLES2 helper, which writes the command buffer protocol. | |
| 321 helper_.reset(new gpu::gles2::GLES2CmdHelper(command_buffer)); | |
| 322 if (!helper_->Initialize(kCommandBufferSize)) | |
| 323 return false; | |
| 324 | |
| 325 // Create a transfer buffer used to copy resources between the renderer | |
| 326 // process and the GPU process. | |
| 327 transfer_buffer_id_ = | |
| 328 command_buffer->CreateTransferBuffer(kTransferBufferSize, -1); | |
| 329 if (transfer_buffer_id_ < 0) | |
| 330 return false; | |
| 331 | |
| 332 // Map the buffer into the renderer process's address space. | |
| 333 gpu::Buffer transfer_buffer = | |
| 334 command_buffer->GetTransferBuffer(transfer_buffer_id_); | |
| 335 if (!transfer_buffer.ptr) | |
| 336 return false; | |
| 337 | |
| 338 // Create the object exposing the OpenGL API. | |
| 339 gles2_impl_.reset(new gpu::gles2::GLES2Implementation( | |
| 340 helper_.get(), | |
| 341 transfer_buffer.size, | |
| 342 transfer_buffer.ptr, | |
| 343 transfer_buffer_id_, | |
| 344 false, | |
| 345 true)); | |
| 346 | |
| 347 return true; | |
| 348 } | |
| 349 | |
| 350 void PPB_Context3D_Impl::Destroy() { | |
| 351 if (draw_surface_) | |
| 352 draw_surface_->BindToContext(NULL); | |
| 353 | |
| 354 gles2_impl_.reset(); | |
| 355 | |
| 356 if (platform_context_.get() && transfer_buffer_id_ != 0) { | |
| 357 platform_context_->GetCommandBuffer()->DestroyTransferBuffer( | |
| 358 transfer_buffer_id_); | |
| 359 transfer_buffer_id_ = 0; | |
| 360 } | |
| 361 | |
| 362 helper_.reset(); | |
| 363 platform_context_.reset(); | |
| 364 } | |
| 365 | |
| 366 void PPB_Context3D_Impl::OnContextLost() { | |
| 367 if (draw_surface_) | |
| 368 draw_surface_->OnContextLost(); | |
| 369 if (read_surface_) | |
| 370 read_surface_->OnContextLost(); | |
| 371 } | |
| 372 | |
| 373 } // namespace ppapi | |
| 374 } // namespace webkit | |
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Chromium Code Reviews
Issue 8676042:
Remove Context3D/Surface3D (Closed)
Base URL: svn://svn.chromium.org/chrome/trunk/src