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| 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 #include <string.h> | |
| 6 | |
| 7 #include <iostream> | |
| 8 #include <sstream> | |
| 9 #include <list> | |
| 10 #include <map> | |
| 11 #include <set> | |
| 12 #include <vector> | |
| 13 | |
| 14 #include "ppapi/c/dev/ppb_console_dev.h" | |
| 15 #include "ppapi/c/pp_errors.h" | |
| 16 #include "ppapi/c/ppb_opengles2.h" | |
| 17 #include "ppapi/cpp/dev/video_decoder_client_dev.h" | |
| 18 #include "ppapi/cpp/dev/video_decoder_dev.h" | |
| 19 #include "ppapi/cpp/graphics_3d.h" | |
| 20 #include "ppapi/cpp/graphics_3d_client.h" | |
| 21 #include "ppapi/cpp/instance.h" | |
| 22 #include "ppapi/cpp/module.h" | |
| 23 #include "ppapi/cpp/rect.h" | |
| 24 #include "ppapi/cpp/var.h" | |
| 25 #include "ppapi/examples/gles2/testdata.h" | |
| 26 #include "ppapi/lib/gl/include/GLES2/gl2.h" | |
| 27 #include "ppapi/utility/completion_callback_factory.h" | |
| 28 | |
| 29 // Use assert as a poor-man's CHECK, even in non-debug mode. | |
| 30 // Since <assert.h> redefines assert on every inclusion (it doesn't use | |
| 31 // include-guards), make sure this is the last file #include'd in this file. | |
| 32 #undef NDEBUG | |
| 33 #include <assert.h> | |
| 34 | |
| 35 // Assert |context_| isn't holding any GL Errors. Done as a macro instead of a | |
| 36 // function to preserve line number information in the failure message. | |
| 37 #define assertNoGLError() \ | |
| 38 assert(!gles2_if_->GetError(context_->pp_resource())); | |
| 39 | |
| 40 namespace { | |
| 41 | |
| 42 class GLES2DemoInstance : public pp::Instance, | |
| 43 public pp::Graphics3DClient, | |
| 44 public pp::VideoDecoderClient_Dev { | |
| 45 public: | |
| 46 GLES2DemoInstance(PP_Instance instance, pp::Module* module); | |
| 47 virtual ~GLES2DemoInstance(); | |
| 48 | |
| 49 // pp::Instance implementation (see PPP_Instance). | |
| 50 virtual void DidChangeView(const pp::Rect& position, | |
| 51 const pp::Rect& clip_ignored); | |
| 52 | |
| 53 // pp::Graphics3DClient implementation. | |
| 54 virtual void Graphics3DContextLost() { | |
| 55 // TODO(vrk/fischman): Properly reset after a lost graphics context. In | |
| 56 // particular need to delete context_ and re-create textures. | |
| 57 // Probably have to recreate the decoder from scratch, because old textures | |
| 58 // can still be outstanding in the decoder! | |
| 59 assert(!"Unexpectedly lost graphics context"); | |
| 60 } | |
| 61 | |
| 62 // pp::VideoDecoderClient_Dev implementation. | |
| 63 virtual void ProvidePictureBuffers(PP_Resource decoder, | |
| 64 uint32_t req_num_of_bufs, | |
| 65 const PP_Size& dimensions); | |
| 66 virtual void DismissPictureBuffer(PP_Resource decoder, | |
| 67 int32_t picture_buffer_id); | |
| 68 virtual void PictureReady(PP_Resource decoder, const PP_Picture_Dev& picture); | |
| 69 virtual void NotifyError(PP_Resource decoder, PP_VideoDecodeError_Dev error); | |
| 70 | |
| 71 private: | |
| 72 enum { kNumConcurrentDecodes = 7, | |
| 73 kNumDecoders = 2 }; // Baked into viewport rendering. | |
| 74 | |
| 75 // A single decoder's client interface. | |
| 76 class DecoderClient { | |
| 77 public: | |
| 78 DecoderClient(GLES2DemoInstance* gles2, pp::VideoDecoder_Dev* decoder); | |
| 79 ~DecoderClient(); | |
| 80 | |
| 81 void DecodeNextNALUs(); | |
| 82 | |
| 83 // Per-decoder implementation of part of pp::VideoDecoderClient_Dev. | |
| 84 void ProvidePictureBuffers(uint32_t req_num_of_bufs, | |
| 85 PP_Size dimensions); | |
| 86 void DismissPictureBuffer(int32_t picture_buffer_id); | |
| 87 | |
| 88 const PP_PictureBuffer_Dev& GetPictureBufferById(int id); | |
| 89 pp::VideoDecoder_Dev* decoder() { return decoder_; } | |
| 90 | |
| 91 private: | |
| 92 void DecodeNextNALU(); | |
| 93 static void GetNextNALUBoundary(size_t start_pos, size_t* end_pos); | |
| 94 void DecoderBitstreamDone(int32_t result, int bitstream_buffer_id); | |
| 95 void DecoderFlushDone(int32_t result); | |
| 96 | |
| 97 GLES2DemoInstance* gles2_; | |
| 98 pp::VideoDecoder_Dev* decoder_; | |
| 99 pp::CompletionCallbackFactory<DecoderClient> callback_factory_; | |
| 100 int next_picture_buffer_id_; | |
| 101 int next_bitstream_buffer_id_; | |
| 102 size_t encoded_data_next_pos_to_decode_; | |
| 103 std::set<int> bitstream_ids_at_decoder_; | |
| 104 // Map of texture buffers indexed by buffer id. | |
| 105 typedef std::map<int, PP_PictureBuffer_Dev> PictureBufferMap; | |
| 106 PictureBufferMap picture_buffers_by_id_; | |
| 107 // Map of bitstream buffers indexed by id. | |
| 108 typedef std::map<int, pp::Buffer_Dev*> BitstreamBufferMap; | |
| 109 BitstreamBufferMap bitstream_buffers_by_id_; | |
| 110 }; | |
| 111 | |
| 112 // Initialize Video Decoders. | |
| 113 void InitializeDecoders(); | |
| 114 | |
| 115 // GL-related functions. | |
| 116 void InitGL(); | |
| 117 GLuint CreateTexture(int32_t width, int32_t height); | |
| 118 void CreateGLObjects(); | |
| 119 void CreateShader(GLuint program, GLenum type, const char* source, int size); | |
| 120 void DeleteTexture(GLuint id); | |
| 121 void PaintFinished(int32_t result, PP_Resource decoder, | |
| 122 int picture_buffer_id); | |
| 123 | |
| 124 // Log an error to the developer console and stderr (though the latter may be | |
| 125 // closed due to sandboxing or blackholed for other reasons) by creating a | |
| 126 // temporary of this type and streaming to it. Example usage: | |
| 127 // LogError(this).s() << "Hello world: " << 42; | |
| 128 class LogError { | |
| 129 public: | |
| 130 LogError(GLES2DemoInstance* demo) : demo_(demo) {} | |
| 131 ~LogError() { | |
| 132 const std::string& msg = stream_.str(); | |
| 133 demo_->console_if_->Log(demo_->pp_instance(), PP_LOGLEVEL_ERROR, | |
| 134 pp::Var(msg).pp_var()); | |
| 135 std::cerr << msg << std::endl; | |
| 136 } | |
| 137 // Impl note: it would have been nicer to have LogError derive from | |
| 138 // std::ostringstream so that it can be streamed to directly, but lookup | |
| 139 // rules turn streamed string literals to hex pointers on output. | |
| 140 std::ostringstream& s() { return stream_; } | |
| 141 private: | |
| 142 GLES2DemoInstance* demo_; // Unowned. | |
| 143 std::ostringstream stream_; | |
| 144 }; | |
| 145 | |
| 146 pp::Size plugin_size_; | |
| 147 bool is_painting_; | |
| 148 // When decode outpaces render, we queue up decoded pictures for later | |
| 149 // painting. Elements are <decoder,picture>. | |
| 150 std::list<std::pair<PP_Resource, PP_Picture_Dev> > pictures_pending_paint_; | |
| 151 int num_frames_rendered_; | |
| 152 PP_TimeTicks first_frame_delivered_ticks_; | |
| 153 PP_TimeTicks last_swap_request_ticks_; | |
| 154 PP_TimeTicks swap_ticks_; | |
| 155 pp::CompletionCallbackFactory<GLES2DemoInstance> callback_factory_; | |
| 156 | |
| 157 // Unowned pointers. | |
| 158 const PPB_Console_Dev* console_if_; | |
| 159 const PPB_Core* core_if_; | |
| 160 const PPB_OpenGLES2* gles2_if_; | |
| 161 | |
| 162 // Owned data. | |
| 163 pp::Graphics3D* context_; | |
| 164 typedef std::map<int, DecoderClient*> Decoders; | |
| 165 Decoders video_decoders_; | |
| 166 }; | |
| 167 | |
| 168 GLES2DemoInstance::DecoderClient::DecoderClient(GLES2DemoInstance* gles2, | |
| 169 pp::VideoDecoder_Dev* decoder) | |
| 170 : gles2_(gles2), decoder_(decoder), callback_factory_(this), | |
| 171 next_picture_buffer_id_(0), | |
| 172 next_bitstream_buffer_id_(0), encoded_data_next_pos_to_decode_(0) { | |
| 173 } | |
| 174 | |
| 175 GLES2DemoInstance::DecoderClient::~DecoderClient() { | |
| 176 delete decoder_; | |
| 177 decoder_ = NULL; | |
| 178 | |
| 179 for (BitstreamBufferMap::iterator it = bitstream_buffers_by_id_.begin(); | |
| 180 it != bitstream_buffers_by_id_.end(); ++it) { | |
| 181 delete it->second; | |
| 182 } | |
| 183 bitstream_buffers_by_id_.clear(); | |
| 184 | |
| 185 for (PictureBufferMap::iterator it = picture_buffers_by_id_.begin(); | |
| 186 it != picture_buffers_by_id_.end(); ++it) { | |
| 187 gles2_->DeleteTexture(it->second.texture_id); | |
| 188 } | |
| 189 picture_buffers_by_id_.clear(); | |
| 190 } | |
| 191 | |
| 192 GLES2DemoInstance::GLES2DemoInstance(PP_Instance instance, pp::Module* module) | |
| 193 : pp::Instance(instance), pp::Graphics3DClient(this), | |
| 194 pp::VideoDecoderClient_Dev(this), | |
| 195 num_frames_rendered_(0), | |
| 196 first_frame_delivered_ticks_(-1), | |
| 197 swap_ticks_(0), | |
| 198 callback_factory_(this), | |
| 199 context_(NULL) { | |
| 200 assert((console_if_ = static_cast<const PPB_Console_Dev*>( | |
| 201 module->GetBrowserInterface(PPB_CONSOLE_DEV_INTERFACE)))); | |
| 202 assert((core_if_ = static_cast<const PPB_Core*>( | |
| 203 module->GetBrowserInterface(PPB_CORE_INTERFACE)))); | |
| 204 assert((gles2_if_ = static_cast<const PPB_OpenGLES2*>( | |
| 205 module->GetBrowserInterface(PPB_OPENGLES2_INTERFACE)))); | |
| 206 } | |
| 207 | |
| 208 GLES2DemoInstance::~GLES2DemoInstance() { | |
| 209 for (Decoders::iterator it = video_decoders_.begin(); | |
| 210 it != video_decoders_.end(); ++it) { | |
| 211 delete it->second; | |
| 212 } | |
| 213 video_decoders_.clear(); | |
| 214 delete context_; | |
| 215 } | |
| 216 | |
| 217 void GLES2DemoInstance::DidChangeView( | |
| 218 const pp::Rect& position, const pp::Rect& clip_ignored) { | |
| 219 if (position.width() == 0 || position.height() == 0) | |
| 220 return; | |
| 221 if (plugin_size_.width()) { | |
| 222 assert(position.size() == plugin_size_); | |
| 223 return; | |
| 224 } | |
| 225 plugin_size_ = position.size(); | |
| 226 | |
| 227 // Initialize graphics. | |
| 228 InitGL(); | |
| 229 InitializeDecoders(); | |
| 230 } | |
| 231 | |
| 232 void GLES2DemoInstance::InitializeDecoders() { | |
| 233 assert(video_decoders_.empty()); | |
| 234 for (int i = 0; i < kNumDecoders; ++i) { | |
| 235 DecoderClient* client = new DecoderClient( | |
| 236 this, new pp::VideoDecoder_Dev( | |
| 237 this, *context_, PP_VIDEODECODER_H264PROFILE_BASELINE)); | |
| 238 assert(!client->decoder()->is_null()); | |
| 239 assert(video_decoders_.insert(std::make_pair( | |
| 240 client->decoder()->pp_resource(), client)).second); | |
| 241 client->DecodeNextNALUs(); | |
| 242 } | |
| 243 } | |
| 244 | |
| 245 void GLES2DemoInstance::DecoderClient::DecoderBitstreamDone( | |
| 246 int32_t result, int bitstream_buffer_id) { | |
| 247 assert(bitstream_ids_at_decoder_.erase(bitstream_buffer_id) == 1); | |
| 248 BitstreamBufferMap::iterator it = | |
| 249 bitstream_buffers_by_id_.find(bitstream_buffer_id); | |
| 250 assert(it != bitstream_buffers_by_id_.end()); | |
| 251 delete it->second; | |
| 252 bitstream_buffers_by_id_.erase(it); | |
| 253 DecodeNextNALUs(); | |
| 254 } | |
| 255 | |
| 256 void GLES2DemoInstance::DecoderClient::DecoderFlushDone(int32_t result) { | |
| 257 assert(result == PP_OK); | |
| 258 // Check that each bitstream buffer ID we handed to the decoder got handed | |
| 259 // back to us. | |
| 260 assert(bitstream_ids_at_decoder_.empty()); | |
| 261 delete decoder_; | |
| 262 decoder_ = NULL; | |
| 263 } | |
| 264 | |
| 265 static bool LookingAtNAL(const unsigned char* encoded, size_t pos) { | |
| 266 return pos + 3 < kDataLen && | |
| 267 encoded[pos] == 0 && encoded[pos + 1] == 0 && | |
| 268 encoded[pos + 2] == 0 && encoded[pos + 3] == 1; | |
| 269 } | |
| 270 | |
| 271 void GLES2DemoInstance::DecoderClient::GetNextNALUBoundary( | |
| 272 size_t start_pos, size_t* end_pos) { | |
| 273 assert(LookingAtNAL(kData, start_pos)); | |
| 274 *end_pos = start_pos; | |
| 275 *end_pos += 4; | |
| 276 while (*end_pos + 3 < kDataLen && | |
| 277 !LookingAtNAL(kData, *end_pos)) { | |
| 278 ++*end_pos; | |
| 279 } | |
| 280 if (*end_pos + 3 >= kDataLen) { | |
| 281 *end_pos = kDataLen; | |
| 282 return; | |
| 283 } | |
| 284 } | |
| 285 | |
| 286 void GLES2DemoInstance::DecoderClient::DecodeNextNALUs() { | |
| 287 while (encoded_data_next_pos_to_decode_ <= kDataLen && | |
| 288 bitstream_ids_at_decoder_.size() < kNumConcurrentDecodes) { | |
| 289 DecodeNextNALU(); | |
| 290 } | |
| 291 } | |
| 292 | |
| 293 void GLES2DemoInstance::DecoderClient::DecodeNextNALU() { | |
| 294 if (encoded_data_next_pos_to_decode_ == kDataLen) { | |
| 295 ++encoded_data_next_pos_to_decode_; | |
| 296 pp::CompletionCallback cb = callback_factory_.NewCallback( | |
| 297 &GLES2DemoInstance::DecoderClient::DecoderFlushDone); | |
| 298 decoder_->Flush(cb); | |
| 299 return; | |
| 300 } | |
| 301 size_t start_pos = encoded_data_next_pos_to_decode_; | |
| 302 size_t end_pos; | |
| 303 GetNextNALUBoundary(start_pos, &end_pos); | |
| 304 pp::Buffer_Dev* buffer = new pp::Buffer_Dev(gles2_, end_pos - start_pos); | |
| 305 PP_VideoBitstreamBuffer_Dev bitstream_buffer; | |
| 306 int id = ++next_bitstream_buffer_id_; | |
| 307 bitstream_buffer.id = id; | |
| 308 bitstream_buffer.size = end_pos - start_pos; | |
| 309 bitstream_buffer.data = buffer->pp_resource(); | |
| 310 memcpy(buffer->data(), kData + start_pos, end_pos - start_pos); | |
| 311 assert(bitstream_buffers_by_id_.insert(std::make_pair(id, buffer)).second); | |
| 312 | |
| 313 pp::CompletionCallback cb = | |
| 314 callback_factory_.NewCallback( | |
| 315 &GLES2DemoInstance::DecoderClient::DecoderBitstreamDone, id); | |
| 316 assert(bitstream_ids_at_decoder_.insert(id).second); | |
| 317 encoded_data_next_pos_to_decode_ = end_pos; | |
| 318 decoder_->Decode(bitstream_buffer, cb); | |
| 319 } | |
| 320 | |
| 321 void GLES2DemoInstance::ProvidePictureBuffers( | |
| 322 PP_Resource decoder, uint32_t req_num_of_bufs, const PP_Size& dimensions) { | |
| 323 DecoderClient* client = video_decoders_[decoder]; | |
| 324 assert(client); | |
| 325 client->ProvidePictureBuffers(req_num_of_bufs, dimensions); | |
| 326 } | |
| 327 | |
| 328 void GLES2DemoInstance::DecoderClient::ProvidePictureBuffers( | |
| 329 uint32_t req_num_of_bufs, PP_Size dimensions) { | |
| 330 std::vector<PP_PictureBuffer_Dev> buffers; | |
| 331 for (uint32_t i = 0; i < req_num_of_bufs; ++i) { | |
| 332 PP_PictureBuffer_Dev buffer; | |
| 333 buffer.size = dimensions; | |
| 334 buffer.texture_id = | |
| 335 gles2_->CreateTexture(dimensions.width, dimensions.height); | |
| 336 int id = ++next_picture_buffer_id_; | |
| 337 buffer.id = id; | |
| 338 buffers.push_back(buffer); | |
| 339 assert(picture_buffers_by_id_.insert(std::make_pair(id, buffer)).second); | |
| 340 } | |
| 341 decoder_->AssignPictureBuffers(buffers); | |
| 342 } | |
| 343 | |
| 344 const PP_PictureBuffer_Dev& | |
| 345 GLES2DemoInstance::DecoderClient::GetPictureBufferById( | |
| 346 int id) { | |
| 347 PictureBufferMap::iterator it = picture_buffers_by_id_.find(id); | |
| 348 assert(it != picture_buffers_by_id_.end()); | |
| 349 return it->second; | |
| 350 } | |
| 351 | |
| 352 void GLES2DemoInstance::DismissPictureBuffer(PP_Resource decoder, | |
| 353 int32_t picture_buffer_id) { | |
| 354 DecoderClient* client = video_decoders_[decoder]; | |
| 355 assert(client); | |
| 356 client->DismissPictureBuffer(picture_buffer_id); | |
| 357 } | |
| 358 | |
| 359 void GLES2DemoInstance::DecoderClient::DismissPictureBuffer( | |
| 360 int32_t picture_buffer_id) { | |
| 361 gles2_->DeleteTexture(GetPictureBufferById(picture_buffer_id).texture_id); | |
| 362 picture_buffers_by_id_.erase(picture_buffer_id); | |
| 363 } | |
| 364 | |
| 365 void GLES2DemoInstance::PictureReady(PP_Resource decoder, | |
| 366 const PP_Picture_Dev& picture) { | |
| 367 if (first_frame_delivered_ticks_ == -1) | |
| 368 assert((first_frame_delivered_ticks_ = core_if_->GetTimeTicks()) != -1); | |
| 369 if (is_painting_) { | |
| 370 pictures_pending_paint_.push_back(std::make_pair(decoder, picture)); | |
| 371 return; | |
| 372 } | |
| 373 DecoderClient* client = video_decoders_[decoder]; | |
| 374 assert(client); | |
| 375 const PP_PictureBuffer_Dev& buffer = | |
| 376 client->GetPictureBufferById(picture.picture_buffer_id); | |
| 377 assert(!is_painting_); | |
| 378 is_painting_ = true; | |
| 379 int x = 0; | |
| 380 int y = 0; | |
| 381 if (client != video_decoders_.begin()->second) { | |
| 382 x = plugin_size_.width() / kNumDecoders; | |
| 383 y = plugin_size_.height() / kNumDecoders; | |
| 384 } | |
| 385 | |
| 386 gles2_if_->Viewport(context_->pp_resource(), x, y, | |
| 387 plugin_size_.width() / kNumDecoders, | |
| 388 plugin_size_.height() / kNumDecoders); | |
| 389 gles2_if_->ActiveTexture(context_->pp_resource(), GL_TEXTURE0); | |
| 390 gles2_if_->BindTexture( | |
| 391 context_->pp_resource(), GL_TEXTURE_2D, buffer.texture_id); | |
| 392 gles2_if_->DrawArrays(context_->pp_resource(), GL_TRIANGLE_STRIP, 0, 4); | |
| 393 pp::CompletionCallback cb = | |
| 394 callback_factory_.NewCallback( | |
| 395 &GLES2DemoInstance::PaintFinished, decoder, buffer.id); | |
| 396 last_swap_request_ticks_ = core_if_->GetTimeTicks(); | |
| 397 assert(context_->SwapBuffers(cb) == PP_OK_COMPLETIONPENDING); | |
| 398 } | |
| 399 | |
| 400 void GLES2DemoInstance::NotifyError(PP_Resource decoder, | |
| 401 PP_VideoDecodeError_Dev error) { | |
| 402 LogError(this).s() << "Received error: " << error; | |
| 403 assert(!"Unexpected error; see stderr for details"); | |
| 404 } | |
| 405 | |
| 406 // This object is the global object representing this plugin library as long | |
| 407 // as it is loaded. | |
| 408 class GLES2DemoModule : public pp::Module { | |
| 409 public: | |
| 410 GLES2DemoModule() : pp::Module() {} | |
| 411 virtual ~GLES2DemoModule() {} | |
| 412 | |
| 413 virtual pp::Instance* CreateInstance(PP_Instance instance) { | |
| 414 return new GLES2DemoInstance(instance, this); | |
| 415 } | |
| 416 }; | |
| 417 | |
| 418 void GLES2DemoInstance::InitGL() { | |
| 419 assert(plugin_size_.width() && plugin_size_.height()); | |
| 420 is_painting_ = false; | |
| 421 | |
| 422 assert(!context_); | |
| 423 int32_t context_attributes[] = { | |
| 424 PP_GRAPHICS3DATTRIB_ALPHA_SIZE, 8, | |
| 425 PP_GRAPHICS3DATTRIB_BLUE_SIZE, 8, | |
| 426 PP_GRAPHICS3DATTRIB_GREEN_SIZE, 8, | |
| 427 PP_GRAPHICS3DATTRIB_RED_SIZE, 8, | |
| 428 PP_GRAPHICS3DATTRIB_DEPTH_SIZE, 0, | |
| 429 PP_GRAPHICS3DATTRIB_STENCIL_SIZE, 0, | |
| 430 PP_GRAPHICS3DATTRIB_SAMPLES, 0, | |
| 431 PP_GRAPHICS3DATTRIB_SAMPLE_BUFFERS, 0, | |
| 432 PP_GRAPHICS3DATTRIB_WIDTH, plugin_size_.width(), | |
| 433 PP_GRAPHICS3DATTRIB_HEIGHT, plugin_size_.height(), | |
| 434 PP_GRAPHICS3DATTRIB_NONE, | |
| 435 }; | |
| 436 context_ = new pp::Graphics3D(this, context_attributes); | |
| 437 assert(!context_->is_null()); | |
| 438 assert(BindGraphics(*context_)); | |
| 439 | |
| 440 // Clear color bit. | |
| 441 gles2_if_->ClearColor(context_->pp_resource(), 1, 0, 0, 1); | |
| 442 gles2_if_->Clear(context_->pp_resource(), GL_COLOR_BUFFER_BIT); | |
| 443 | |
| 444 assertNoGLError(); | |
| 445 | |
| 446 CreateGLObjects(); | |
| 447 } | |
| 448 | |
| 449 void GLES2DemoInstance::PaintFinished(int32_t result, PP_Resource decoder, | |
| 450 int picture_buffer_id) { | |
| 451 assert(result == PP_OK); | |
| 452 swap_ticks_ += core_if_->GetTimeTicks() - last_swap_request_ticks_; | |
| 453 is_painting_ = false; | |
| 454 ++num_frames_rendered_; | |
| 455 if (num_frames_rendered_ % 50 == 0) { | |
| 456 double elapsed = core_if_->GetTimeTicks() - first_frame_delivered_ticks_; | |
| 457 double fps = (elapsed > 0) ? num_frames_rendered_ / elapsed : 1000; | |
| 458 double ms_per_swap = (swap_ticks_ * 1e3) / num_frames_rendered_; | |
| 459 LogError(this).s() << "Rendered frames: " << num_frames_rendered_ | |
| 460 << ", fps: " << fps << ", with average ms/swap of: " | |
| 461 << ms_per_swap; | |
| 462 } | |
| 463 DecoderClient* client = video_decoders_[decoder]; | |
| 464 if (client && client->decoder()) | |
| 465 client->decoder()->ReusePictureBuffer(picture_buffer_id); | |
| 466 if (!pictures_pending_paint_.empty()) { | |
| 467 std::pair<PP_Resource, PP_Picture_Dev> decoder_picture = | |
| 468 pictures_pending_paint_.front(); | |
| 469 pictures_pending_paint_.pop_front(); | |
| 470 PictureReady(decoder_picture.first, decoder_picture.second); | |
| 471 } | |
| 472 } | |
| 473 | |
| 474 GLuint GLES2DemoInstance::CreateTexture(int32_t width, int32_t height) { | |
| 475 GLuint texture_id; | |
| 476 gles2_if_->GenTextures(context_->pp_resource(), 1, &texture_id); | |
| 477 assertNoGLError(); | |
| 478 // Assign parameters. | |
| 479 gles2_if_->ActiveTexture(context_->pp_resource(), GL_TEXTURE0); | |
| 480 gles2_if_->BindTexture(context_->pp_resource(), GL_TEXTURE_2D, texture_id); | |
| 481 gles2_if_->TexParameteri( | |
| 482 context_->pp_resource(), GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, | |
| 483 GL_NEAREST); | |
| 484 gles2_if_->TexParameteri( | |
| 485 context_->pp_resource(), GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, | |
| 486 GL_NEAREST); | |
| 487 gles2_if_->TexParameterf( | |
| 488 context_->pp_resource(), GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, | |
| 489 GL_CLAMP_TO_EDGE); | |
| 490 gles2_if_->TexParameterf( | |
| 491 context_->pp_resource(), GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, | |
| 492 GL_CLAMP_TO_EDGE); | |
| 493 | |
| 494 gles2_if_->TexImage2D( | |
| 495 context_->pp_resource(), GL_TEXTURE_2D, 0, GL_RGBA, width, height, 0, | |
| 496 GL_RGBA, GL_UNSIGNED_BYTE, NULL); | |
| 497 assertNoGLError(); | |
| 498 return texture_id; | |
| 499 } | |
| 500 | |
| 501 void GLES2DemoInstance::DeleteTexture(GLuint id) { | |
| 502 gles2_if_->DeleteTextures(context_->pp_resource(), 1, &id); | |
| 503 } | |
| 504 | |
| 505 void GLES2DemoInstance::CreateGLObjects() { | |
| 506 // Code and constants for shader. | |
| 507 static const char kVertexShader[] = | |
| 508 "varying vec2 v_texCoord; \n" | |
| 509 "attribute vec4 a_position; \n" | |
| 510 "attribute vec2 a_texCoord; \n" | |
| 511 "void main() \n" | |
| 512 "{ \n" | |
| 513 " v_texCoord = a_texCoord; \n" | |
| 514 " gl_Position = a_position; \n" | |
| 515 "}"; | |
| 516 | |
| 517 static const char kFragmentShader[] = | |
| 518 "precision mediump float; \n" | |
| 519 "varying vec2 v_texCoord; \n" | |
| 520 "uniform sampler2D s_texture; \n" | |
| 521 "void main() \n" | |
| 522 "{" | |
| 523 " gl_FragColor = texture2D(s_texture, v_texCoord); \n" | |
| 524 "}"; | |
| 525 | |
| 526 // Create shader program. | |
| 527 GLuint program = gles2_if_->CreateProgram(context_->pp_resource()); | |
| 528 CreateShader(program, GL_VERTEX_SHADER, kVertexShader, sizeof(kVertexShader)); | |
| 529 CreateShader( | |
| 530 program, GL_FRAGMENT_SHADER, kFragmentShader, sizeof(kFragmentShader)); | |
| 531 gles2_if_->LinkProgram(context_->pp_resource(), program); | |
| 532 gles2_if_->UseProgram(context_->pp_resource(), program); | |
| 533 gles2_if_->DeleteProgram(context_->pp_resource(), program); | |
| 534 gles2_if_->Uniform1i( | |
| 535 context_->pp_resource(), | |
| 536 gles2_if_->GetUniformLocation( | |
| 537 context_->pp_resource(), program, "s_texture"), 0); | |
| 538 assertNoGLError(); | |
| 539 | |
| 540 // Assign vertex positions and texture coordinates to buffers for use in | |
| 541 // shader program. | |
| 542 static const float kVertices[] = { | |
| 543 -1, 1, -1, -1, 1, 1, 1, -1, // Position coordinates. | |
| 544 0, 1, 0, 0, 1, 1, 1, 0, // Texture coordinates. | |
| 545 }; | |
| 546 | |
| 547 GLuint buffer; | |
| 548 gles2_if_->GenBuffers(context_->pp_resource(), 1, &buffer); | |
| 549 gles2_if_->BindBuffer(context_->pp_resource(), GL_ARRAY_BUFFER, buffer); | |
| 550 gles2_if_->BufferData(context_->pp_resource(), GL_ARRAY_BUFFER, | |
| 551 sizeof(kVertices), kVertices, GL_STATIC_DRAW); | |
| 552 assertNoGLError(); | |
| 553 GLint pos_location = gles2_if_->GetAttribLocation( | |
| 554 context_->pp_resource(), program, "a_position"); | |
| 555 GLint tc_location = gles2_if_->GetAttribLocation( | |
| 556 context_->pp_resource(), program, "a_texCoord"); | |
| 557 assertNoGLError(); | |
| 558 gles2_if_->EnableVertexAttribArray(context_->pp_resource(), pos_location); | |
| 559 gles2_if_->VertexAttribPointer(context_->pp_resource(), pos_location, 2, | |
| 560 GL_FLOAT, GL_FALSE, 0, 0); | |
| 561 gles2_if_->EnableVertexAttribArray(context_->pp_resource(), tc_location); | |
| 562 gles2_if_->VertexAttribPointer( | |
| 563 context_->pp_resource(), tc_location, 2, GL_FLOAT, GL_FALSE, 0, | |
| 564 static_cast<float*>(0) + 8); // Skip position coordinates. | |
| 565 assertNoGLError(); | |
| 566 } | |
| 567 | |
| 568 void GLES2DemoInstance::CreateShader( | |
| 569 GLuint program, GLenum type, const char* source, int size) { | |
| 570 GLuint shader = gles2_if_->CreateShader(context_->pp_resource(), type); | |
| 571 gles2_if_->ShaderSource(context_->pp_resource(), shader, 1, &source, &size); | |
| 572 gles2_if_->CompileShader(context_->pp_resource(), shader); | |
| 573 gles2_if_->AttachShader(context_->pp_resource(), program, shader); | |
| 574 gles2_if_->DeleteShader(context_->pp_resource(), shader); | |
| 575 } | |
| 576 } // anonymous namespace | |
| 577 | |
| 578 namespace pp { | |
| 579 // Factory function for your specialization of the Module object. | |
| 580 Module* CreateModule() { | |
| 581 return new GLES2DemoModule(); | |
| 582 } | |
| 583 } // namespace pp | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 9620024:
Move ppapi/examples/gles2/ to ppapi/examples/video_decode (Closed)
Base URL: svn://svn.chromium.org/chrome/trunk/src