src/content/common/cc_messages.cc

   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 "content/common/cc_messages.h"
   6
   7 #include "base/command_line.h"
   8 #include "cc/output/compositor_frame.h"
   9 #include "cc/output/filter_operations.h"
  10 #include "content/public/common/common_param_traits.h"
  11 #include "content/public/common/content_switches.h"
  12 #include "third_party/skia/include/core/SkData.h"
  13 #include "third_party/skia/include/core/SkFlattenableSerialization.h"
  14 #include "ui/gfx/transform.h"
  15
  16 namespace IPC {
  17
  18 void ParamTraits<cc::FilterOperation>::Write(
  19     Message* m, const param_type& p) {
  20   WriteParam(m, p.type());
  21   switch (p.type()) {
  22     case cc::FilterOperation::GRAYSCALE:
  23     case cc::FilterOperation::SEPIA:
  24     case cc::FilterOperation::SATURATE:
  25     case cc::FilterOperation::HUE_ROTATE:
  26     case cc::FilterOperation::INVERT:
  27     case cc::FilterOperation::BRIGHTNESS:
  28     case cc::FilterOperation::SATURATING_BRIGHTNESS:
  29     case cc::FilterOperation::CONTRAST:
  30     case cc::FilterOperation::OPACITY:
  31     case cc::FilterOperation::BLUR:
  32       WriteParam(m, p.amount());
  33       break;
  34     case cc::FilterOperation::DROP_SHADOW:
  35       WriteParam(m, p.drop_shadow_offset());
  36       WriteParam(m, p.amount());
  37       WriteParam(m, p.drop_shadow_color());
  38       break;
  39     case cc::FilterOperation::COLOR_MATRIX:
  40       for (int i = 0; i < 20; ++i)
  41         WriteParam(m, p.matrix()[i]);
  42       break;
  43     case cc::FilterOperation::ZOOM:
  44       WriteParam(m, p.amount());
  45       WriteParam(m, p.zoom_inset());
  46       break;
  47     case cc::FilterOperation::REFERENCE:
  48       WriteParam(m, p.image_filter());
  49       break;
  50   }
  51 }
  52
  53 bool ParamTraits<cc::FilterOperation>::Read(
  54     const Message* m, PickleIterator* iter, param_type* r) {
  55   cc::FilterOperation::FilterType type;
  56   float amount;
  57   gfx::Point drop_shadow_offset;
  58   SkColor drop_shadow_color;
  59   SkScalar matrix[20];
  60   int zoom_inset;
  61
  62   if (!ReadParam(m, iter, &type))
  63     return false;
  64   r->set_type(type);
  65
  66   bool success = false;
  67   switch (type) {
  68     case cc::FilterOperation::GRAYSCALE:
  69     case cc::FilterOperation::SEPIA:
  70     case cc::FilterOperation::SATURATE:
  71     case cc::FilterOperation::HUE_ROTATE:
  72     case cc::FilterOperation::INVERT:
  73     case cc::FilterOperation::BRIGHTNESS:
  74     case cc::FilterOperation::SATURATING_BRIGHTNESS:
  75     case cc::FilterOperation::CONTRAST:
  76     case cc::FilterOperation::OPACITY:
  77     case cc::FilterOperation::BLUR:
  78       if (ReadParam(m, iter, &amount)) {
  79         r->set_amount(amount);
  80         success = true;
  81       }
  82       break;
  83     case cc::FilterOperation::DROP_SHADOW:
  84       if (ReadParam(m, iter, &drop_shadow_offset) &&
  85           ReadParam(m, iter, &amount) &&
  86           ReadParam(m, iter, &drop_shadow_color)) {
  87         r->set_drop_shadow_offset(drop_shadow_offset);
  88         r->set_amount(amount);
  89         r->set_drop_shadow_color(drop_shadow_color);
  90         success = true;
  91       }
  92       break;
  93     case cc::FilterOperation::COLOR_MATRIX: {
  94       int i;
  95       for (i = 0; i < 20; ++i) {
  96         if (!ReadParam(m, iter, &matrix[i]))
  97           break;
  98       }
  99       if (i == 20) {
 100         r->set_matrix(matrix);
 101         success = true;
 102       }
 103       break;
 104     }
 105     case cc::FilterOperation::ZOOM:
 106       if (ReadParam(m, iter, &amount) &&
 107           ReadParam(m, iter, &zoom_inset) &&
 108           amount >= 0.f &&
 109           zoom_inset >= 0) {
 110         r->set_amount(amount);
 111         r->set_zoom_inset(zoom_inset);
 112         success = true;
 113       }
 114       break;
 115     case cc::FilterOperation::REFERENCE: {
 116       skia::RefPtr<SkImageFilter> filter;
 117       if (!ReadParam(m, iter, &filter)) {
 118         success = false;
 119         break;
 120       }
 121       r->set_image_filter(filter);
 122       success = true;
 123       break;
 124     }
 125   }
 126   return success;
 127 }
 128
 129 void ParamTraits<cc::FilterOperation>::Log(
 130     const param_type& p, std::string* l) {
 131   l->append("(");
 132   LogParam(static_cast<unsigned>(p.type()), l);
 133   l->append(", ");
 134
 135   switch (p.type()) {
 136     case cc::FilterOperation::GRAYSCALE:
 137     case cc::FilterOperation::SEPIA:
 138     case cc::FilterOperation::SATURATE:
 139     case cc::FilterOperation::HUE_ROTATE:
 140     case cc::FilterOperation::INVERT:
 141     case cc::FilterOperation::BRIGHTNESS:
 142     case cc::FilterOperation::SATURATING_BRIGHTNESS:
 143     case cc::FilterOperation::CONTRAST:
 144     case cc::FilterOperation::OPACITY:
 145     case cc::FilterOperation::BLUR:
 146       LogParam(p.amount(), l);
 147       break;
 148     case cc::FilterOperation::DROP_SHADOW:
 149       LogParam(p.drop_shadow_offset(), l);
 150       l->append(", ");
 151       LogParam(p.amount(), l);
 152       l->append(", ");
 153       LogParam(p.drop_shadow_color(), l);
 154       break;
 155     case cc::FilterOperation::COLOR_MATRIX:
 156       for (int i = 0; i < 20; ++i) {
 157         if (i)
 158           l->append(", ");
 159         LogParam(p.matrix()[i], l);
 160       }
 161       break;
 162     case cc::FilterOperation::ZOOM:
 163       LogParam(p.amount(), l);
 164       l->append(", ");
 165       LogParam(p.zoom_inset(), l);
 166       break;
 167     case cc::FilterOperation::REFERENCE:
 168       LogParam(p.image_filter(), l);
 169       break;
 170   }
 171   l->append(")");
 172 }
 173
 174 void ParamTraits<cc::FilterOperations>::Write(
 175     Message* m, const param_type& p) {
 176   WriteParam(m, p.size());
 177   for (std::size_t i = 0; i < p.size(); ++i) {
 178     WriteParam(m, p.at(i));
 179   }
 180 }
 181
 182 bool ParamTraits<cc::FilterOperations>::Read(
 183     const Message* m, PickleIterator* iter, param_type* r) {
 184   size_t count;
 185   if (!ReadParam(m, iter, &count))
 186     return false;
 187
 188   for (std::size_t i = 0; i < count; ++i) {
 189     cc::FilterOperation op = cc::FilterOperation::CreateEmptyFilter();
 190     if (!ReadParam(m, iter, &op))
 191       return false;
 192     r->Append(op);
 193   }
 194   return true;
 195 }
 196
 197 void ParamTraits<cc::FilterOperations>::Log(
 198     const param_type& p, std::string* l) {
 199   l->append("(");
 200   for (std::size_t i = 0; i < p.size(); ++i) {
 201     if (i)
 202       l->append(", ");
 203     LogParam(p.at(i), l);
 204   }
 205   l->append(")");
 206 }
 207
 208 void ParamTraits<skia::RefPtr<SkImageFilter> >::Write(
 209     Message* m, const param_type& p) {
 210   SkImageFilter* filter = p.get();
 211   const CommandLine& command_line = *CommandLine::ForCurrentProcess();
 212   if (filter && command_line.HasSwitch(switches::kAllowFiltersOverIPC)) {
 213     skia::RefPtr<SkData> data = skia::AdoptRef(SkSerializeFlattenable(filter));
 214     m->WriteData(static_cast<const char*>(data->data()), data->size());
 215   } else {
 216     m->WriteData(0, 0);
 217   }
 218 }
 219
 220 bool ParamTraits<skia::RefPtr<SkImageFilter> >::Read(
 221     const Message* m, PickleIterator* iter, param_type* r) {
 222   const char* data = 0;
 223   int length = 0;
 224   if (!m->ReadData(iter, &data, &length))
 225     return false;
 226   const CommandLine& command_line = *CommandLine::ForCurrentProcess();
 227   if ((length > 0) && command_line.HasSwitch(switches::kAllowFiltersOverIPC)) {
 228     SkFlattenable* flattenable = SkDeserializeFlattenable(data, length);
 229     *r = skia::AdoptRef(static_cast<SkImageFilter*>(flattenable));
 230   } else {
 231     r->clear();
 232   }
 233   return true;
 234 }
 235
 236 void ParamTraits<skia::RefPtr<SkImageFilter> >::Log(
 237     const param_type& p, std::string* l) {
 238   l->append("(");
 239   LogParam(p.get() ? p->countInputs() : 0, l);
 240   l->append(")");
 241 }
 242
 243 void ParamTraits<gfx::Transform>::Write(
 244     Message* m, const param_type& p) {
 245 #ifdef SK_MSCALAR_IS_FLOAT
 246   float column_major_data[16];
 247   p.matrix().asColMajorf(column_major_data);
 248 #else
 249   double column_major_data[16];
 250   p.matrix().asColMajord(column_major_data);
 251 #endif
 252   m->WriteBytes(&column_major_data, sizeof(SkMScalar) * 16);
 253 }
 254
 255 bool ParamTraits<gfx::Transform>::Read(
 256     const Message* m, PickleIterator* iter, param_type* r) {
 257   const char* column_major_data;
 258   if (!m->ReadBytes(iter, &column_major_data, sizeof(SkMScalar) * 16))
 259     return false;
 260   r->matrix().setColMajor(
 261       reinterpret_cast<const SkMScalar*>(column_major_data));
 262   return true;
 263 }
 264
 265 void ParamTraits<gfx::Transform>::Log(
 266     const param_type& p, std::string* l) {
 267 #ifdef SK_MSCALAR_IS_FLOAT
 268   float row_major_data[16];
 269   p.matrix().asRowMajorf(row_major_data);
 270 #else
 271   double row_major_data[16];
 272   p.matrix().asRowMajord(row_major_data);
 273 #endif
 274   l->append("(");
 275   for (int i = 0; i < 16; ++i) {
 276     if (i > 0)
 277       l->append(", ");
 278     LogParam(row_major_data[i], l);
 279   }
 280   l->append(") ");
 281 }
 282
 283 void ParamTraits<cc::RenderPass>::Write(
 284     Message* m, const param_type& p) {
 285   WriteParam(m, p.id);
 286   WriteParam(m, p.output_rect);
 287   WriteParam(m, p.damage_rect);
 288   WriteParam(m, p.transform_to_root_target);
 289   WriteParam(m, p.has_transparent_background);
 290   WriteParam(m, p.shared_quad_state_list.size());
 291   WriteParam(m, p.quad_list.size());
 292
 293   for (size_t i = 0; i < p.shared_quad_state_list.size(); ++i)
 294     WriteParam(m, *p.shared_quad_state_list[i]);
 295
 296   size_t shared_quad_state_index = 0;
 297   for (size_t i = 0; i < p.quad_list.size(); ++i) {
 298     const cc::DrawQuad* quad = p.quad_list[i];
 299     DCHECK(quad->rect.Contains(quad->visible_rect))
 300         << quad->material << " rect: " << quad->rect.ToString()
 301         << " visible_rect: " << quad->visible_rect.ToString();
 302     DCHECK(quad->opaque_rect.IsEmpty() ||
 303            quad->rect.Contains(quad->opaque_rect))
 304         << quad->material << " rect: " << quad->rect.ToString()
 305         << " opaque_rect: " << quad->opaque_rect.ToString();
 306
 307     switch (quad->material) {
 308       case cc::DrawQuad::CHECKERBOARD:
 309         WriteParam(m, *cc::CheckerboardDrawQuad::MaterialCast(quad));
 310         break;
 311       case cc::DrawQuad::DEBUG_BORDER:
 312         WriteParam(m, *cc::DebugBorderDrawQuad::MaterialCast(quad));
 313         break;
 314       case cc::DrawQuad::IO_SURFACE_CONTENT:
 315         WriteParam(m, *cc::IOSurfaceDrawQuad::MaterialCast(quad));
 316         break;
 317       case cc::DrawQuad::PICTURE_CONTENT:
 318         NOTREACHED();
 319         break;
 320       case cc::DrawQuad::TEXTURE_CONTENT:
 321         WriteParam(m, *cc::TextureDrawQuad::MaterialCast(quad));
 322         break;
 323       case cc::DrawQuad::RENDER_PASS:
 324         WriteParam(m, *cc::RenderPassDrawQuad::MaterialCast(quad));
 325         break;
 326       case cc::DrawQuad::SOLID_COLOR:
 327         WriteParam(m, *cc::SolidColorDrawQuad::MaterialCast(quad));
 328         break;
 329       case cc::DrawQuad::TILED_CONTENT:
 330         WriteParam(m, *cc::TileDrawQuad::MaterialCast(quad));
 331         break;
 332       case cc::DrawQuad::STREAM_VIDEO_CONTENT:
 333         WriteParam(m, *cc::StreamVideoDrawQuad::MaterialCast(quad));
 334         break;
 335       case cc::DrawQuad::YUV_VIDEO_CONTENT:
 336         WriteParam(m, *cc::YUVVideoDrawQuad::MaterialCast(quad));
 337         break;
 338       case cc::DrawQuad::INVALID:
 339         break;
 340     }
 341
 342     const cc::ScopedPtrVector<cc::SharedQuadState>& sqs_list =
 343         p.shared_quad_state_list;
 344
 345     // This is an invalid index.
 346     size_t bad_index = sqs_list.size();
 347
 348     // Null shared quad states should not occur.
 349     DCHECK(quad->shared_quad_state);
 350     if (!quad->shared_quad_state) {
 351       WriteParam(m, bad_index);
 352       continue;
 353     }
 354
 355     // SharedQuadStates should appear in the order they are used by DrawQuads.
 356     // Find the SharedQuadState for this DrawQuad.
 357     while (shared_quad_state_index < sqs_list.size() &&
 358            quad->shared_quad_state != sqs_list[shared_quad_state_index])
 359       ++shared_quad_state_index;
 360
 361     DCHECK_LT(shared_quad_state_index, sqs_list.size());
 362     if (shared_quad_state_index >= sqs_list.size()) {
 363       WriteParam(m, bad_index);
 364       continue;
 365     }
 366
 367     DCHECK_LT(shared_quad_state_index, p.shared_quad_state_list.size());
 368     WriteParam(m, shared_quad_state_index);
 369   }
 370 }
 371
 372 static size_t ReserveSizeForRenderPassWrite(const cc::RenderPass& p) {
 373   size_t to_reserve = sizeof(cc::RenderPass);
 374
 375   to_reserve += p.shared_quad_state_list.size() * sizeof(cc::SharedQuadState);
 376
 377   // The shared_quad_state_index for each quad.
 378   to_reserve += p.quad_list.size() * sizeof(size_t);
 379
 380   // The largest quad type, verified by a unit test.
 381   to_reserve += p.quad_list.size() * sizeof(cc::RenderPassDrawQuad);
 382   return to_reserve;
 383 }
 384
 385 template<typename QuadType>
 386 static scoped_ptr<cc::DrawQuad> ReadDrawQuad(const Message* m,
 387                                              PickleIterator* iter) {
 388   scoped_ptr<QuadType> quad = QuadType::Create();
 389   if (!ReadParam(m, iter, quad.get()))
 390     return scoped_ptr<QuadType>().template PassAs<cc::DrawQuad>();
 391   return quad.template PassAs<cc::DrawQuad>();
 392 }
 393
 394 bool ParamTraits<cc::RenderPass>::Read(
 395     const Message* m, PickleIterator* iter, param_type* p) {
 396   cc::RenderPass::Id id(-1, -1);
 397   gfx::Rect output_rect;
 398   gfx::RectF damage_rect;
 399   gfx::Transform transform_to_root_target;
 400   bool has_transparent_background;
 401   size_t shared_quad_state_list_size;
 402   size_t quad_list_size;
 403
 404   if (!ReadParam(m, iter, &id) ||
 405       !ReadParam(m, iter, &output_rect) ||
 406       !ReadParam(m, iter, &damage_rect) ||
 407       !ReadParam(m, iter, &transform_to_root_target) ||
 408       !ReadParam(m, iter, &has_transparent_background) ||
 409       !ReadParam(m, iter, &shared_quad_state_list_size) ||
 410       !ReadParam(m, iter, &quad_list_size))
 411     return false;
 412
 413   p->SetAll(id,
 414             output_rect,
 415             damage_rect,
 416             transform_to_root_target,
 417             has_transparent_background);
 418
 419   for (size_t i = 0; i < shared_quad_state_list_size; ++i) {
 420     scoped_ptr<cc::SharedQuadState> state(cc::SharedQuadState::Create());
 421     if (!ReadParam(m, iter, state.get()))
 422       return false;
 423     p->shared_quad_state_list.push_back(state.Pass());
 424   }
 425
 426   size_t last_shared_quad_state_index = 0;
 427   for (size_t i = 0; i < quad_list_size; ++i) {
 428     cc::DrawQuad::Material material;
 429     PickleIterator temp_iter = *iter;
 430     if (!ReadParam(m, &temp_iter, &material))
 431       return false;
 432
 433     scoped_ptr<cc::DrawQuad> draw_quad;
 434     switch (material) {
 435       case cc::DrawQuad::CHECKERBOARD:
 436         draw_quad = ReadDrawQuad<cc::CheckerboardDrawQuad>(m, iter);
 437         break;
 438       case cc::DrawQuad::DEBUG_BORDER:
 439         draw_quad = ReadDrawQuad<cc::DebugBorderDrawQuad>(m, iter);
 440         break;
 441       case cc::DrawQuad::IO_SURFACE_CONTENT:
 442         draw_quad = ReadDrawQuad<cc::IOSurfaceDrawQuad>(m, iter);
 443         break;
 444       case cc::DrawQuad::PICTURE_CONTENT:
 445         NOTREACHED();
 446         return false;
 447       case cc::DrawQuad::TEXTURE_CONTENT:
 448         draw_quad = ReadDrawQuad<cc::TextureDrawQuad>(m, iter);
 449         break;
 450       case cc::DrawQuad::RENDER_PASS:
 451         draw_quad = ReadDrawQuad<cc::RenderPassDrawQuad>(m, iter);
 452         break;
 453       case cc::DrawQuad::SOLID_COLOR:
 454         draw_quad = ReadDrawQuad<cc::SolidColorDrawQuad>(m, iter);
 455         break;
 456       case cc::DrawQuad::TILED_CONTENT:
 457         draw_quad = ReadDrawQuad<cc::TileDrawQuad>(m, iter);
 458         break;
 459       case cc::DrawQuad::STREAM_VIDEO_CONTENT:
 460         draw_quad = ReadDrawQuad<cc::StreamVideoDrawQuad>(m, iter);
 461         break;
 462       case cc::DrawQuad::YUV_VIDEO_CONTENT:
 463         draw_quad = ReadDrawQuad<cc::YUVVideoDrawQuad>(m, iter);
 464         break;
 465       case cc::DrawQuad::INVALID:
 466         break;
 467     }
 468     if (!draw_quad)
 469       return false;
 470     if (!draw_quad->rect.Contains(draw_quad->visible_rect)) {
 471       LOG(ERROR) << "Quad with invalid visible rect " << draw_quad->material
 472                  << " rect: " << draw_quad->rect.ToString()
 473                  << " visible_rect: " << draw_quad->visible_rect.ToString();
 474       return false;
 475     }
 476     if (!draw_quad->opaque_rect.IsEmpty() &&
 477         !draw_quad->rect.Contains(draw_quad->opaque_rect)) {
 478       LOG(ERROR) << "Quad with invalid opaque rect " << draw_quad->material
 479                  << " rect: " << draw_quad->rect.ToString()
 480                  << " opaque_rect: " << draw_quad->opaque_rect.ToString();
 481       return false;
 482     }
 483
 484     size_t shared_quad_state_index;
 485     if (!ReadParam(m, iter, &shared_quad_state_index) ||
 486         shared_quad_state_index >= p->shared_quad_state_list.size())
 487       return false;
 488     // SharedQuadState indexes should be in ascending order.
 489     if (shared_quad_state_index < last_shared_quad_state_index)
 490       return false;
 491     last_shared_quad_state_index = shared_quad_state_index;
 492
 493     draw_quad->shared_quad_state =
 494         p->shared_quad_state_list[shared_quad_state_index];
 495
 496     p->quad_list.push_back(draw_quad.Pass());
 497   }
 498
 499   return true;
 500 }
 501
 502 void ParamTraits<cc::RenderPass>::Log(
 503     const param_type& p, std::string* l) {
 504   l->append("RenderPass((");
 505   LogParam(p.id, l);
 506   l->append("), ");
 507   LogParam(p.output_rect, l);
 508   l->append(", ");
 509   LogParam(p.damage_rect, l);
 510   l->append(", ");
 511   LogParam(p.transform_to_root_target, l);
 512   l->append(", ");
 513   LogParam(p.has_transparent_background, l);
 514   l->append(", ");
 515
 516   l->append("[");
 517   for (size_t i = 0; i < p.shared_quad_state_list.size(); ++i) {
 518     if (i)
 519       l->append(", ");
 520     LogParam(*p.shared_quad_state_list[i], l);
 521   }
 522   l->append("], [");
 523   for (size_t i = 0; i < p.quad_list.size(); ++i) {
 524     if (i)
 525       l->append(", ");
 526     const cc::DrawQuad* quad = p.quad_list[i];
 527     switch (quad->material) {
 528       case cc::DrawQuad::CHECKERBOARD:
 529         LogParam(*cc::CheckerboardDrawQuad::MaterialCast(quad), l);
 530         break;
 531       case cc::DrawQuad::DEBUG_BORDER:
 532         LogParam(*cc::DebugBorderDrawQuad::MaterialCast(quad), l);
 533         break;
 534       case cc::DrawQuad::IO_SURFACE_CONTENT:
 535         LogParam(*cc::IOSurfaceDrawQuad::MaterialCast(quad), l);
 536         break;
 537       case cc::DrawQuad::PICTURE_CONTENT:
 538         NOTREACHED();
 539         break;
 540       case cc::DrawQuad::TEXTURE_CONTENT:
 541         LogParam(*cc::TextureDrawQuad::MaterialCast(quad), l);
 542         break;
 543       case cc::DrawQuad::RENDER_PASS:
 544         LogParam(*cc::RenderPassDrawQuad::MaterialCast(quad), l);
 545         break;
 546       case cc::DrawQuad::SOLID_COLOR:
 547         LogParam(*cc::SolidColorDrawQuad::MaterialCast(quad), l);
 548         break;
 549       case cc::DrawQuad::TILED_CONTENT:
 550         LogParam(*cc::TileDrawQuad::MaterialCast(quad), l);
 551         break;
 552       case cc::DrawQuad::STREAM_VIDEO_CONTENT:
 553         LogParam(*cc::StreamVideoDrawQuad::MaterialCast(quad), l);
 554         break;
 555       case cc::DrawQuad::YUV_VIDEO_CONTENT:
 556         LogParam(*cc::YUVVideoDrawQuad::MaterialCast(quad), l);
 557         break;
 558       case cc::DrawQuad::INVALID:
 559         break;
 560     }
 561   }
 562   l->append("])");
 563 }
 564
 565 namespace {
 566   enum CompositorFrameType {
 567     NO_FRAME,
 568     DELEGATED_FRAME,
 569     GL_FRAME,
 570     SOFTWARE_FRAME,
 571   };
 572 }
 573
 574 void ParamTraits<cc::CompositorFrame>::Write(Message* m,
 575                                              const param_type& p) {
 576   WriteParam(m, p.metadata);
 577   if (p.delegated_frame_data) {
 578     DCHECK(!p.gl_frame_data);
 579     DCHECK(!p.software_frame_data);
 580     WriteParam(m, static_cast<int>(DELEGATED_FRAME));
 581     WriteParam(m, *p.delegated_frame_data);
 582   } else if (p.gl_frame_data) {
 583     DCHECK(!p.software_frame_data);
 584     WriteParam(m, static_cast<int>(GL_FRAME));
 585     WriteParam(m, *p.gl_frame_data);
 586   } else if (p.software_frame_data) {
 587     WriteParam(m, static_cast<int>(SOFTWARE_FRAME));
 588     WriteParam(m, *p.software_frame_data);
 589   } else {
 590     WriteParam(m, static_cast<int>(NO_FRAME));
 591   }
 592 }
 593
 594 bool ParamTraits<cc::CompositorFrame>::Read(const Message* m,
 595                                             PickleIterator* iter,
 596                                             param_type* p) {
 597   if (!ReadParam(m, iter, &p->metadata))
 598     return false;
 599
 600   int compositor_frame_type;
 601   if (!ReadParam(m, iter, &compositor_frame_type))
 602     return false;
 603
 604   switch (compositor_frame_type) {
 605     case DELEGATED_FRAME:
 606       p->delegated_frame_data.reset(new cc::DelegatedFrameData());
 607       if (!ReadParam(m, iter, p->delegated_frame_data.get()))
 608         return false;
 609       break;
 610     case GL_FRAME:
 611       p->gl_frame_data.reset(new cc::GLFrameData());
 612       if (!ReadParam(m, iter, p->gl_frame_data.get()))
 613         return false;
 614       break;
 615     case SOFTWARE_FRAME:
 616       p->software_frame_data.reset(new cc::SoftwareFrameData());
 617       if (!ReadParam(m, iter, p->software_frame_data.get()))
 618         return false;
 619       break;
 620     case NO_FRAME:
 621       break;
 622     default:
 623       return false;
 624   }
 625   return true;
 626 }
 627
 628 void ParamTraits<cc::CompositorFrame>::Log(const param_type& p,
 629                                            std::string* l) {
 630   l->append("CompositorFrame(");
 631   LogParam(p.metadata, l);
 632   l->append(", ");
 633   if (p.delegated_frame_data)
 634     LogParam(*p.delegated_frame_data, l);
 635   else if (p.gl_frame_data)
 636     LogParam(*p.gl_frame_data, l);
 637   else if (p.software_frame_data)
 638     LogParam(*p.software_frame_data, l);
 639   l->append(")");
 640 }
 641
 642 void ParamTraits<cc::CompositorFrameAck>::Write(Message* m,
 643                                                 const param_type& p) {
 644   WriteParam(m, p.resources);
 645   WriteParam(m, p.last_software_frame_id);
 646   if (p.gl_frame_data) {
 647     WriteParam(m, static_cast<int>(GL_FRAME));
 648     WriteParam(m, *p.gl_frame_data);
 649   } else {
 650     WriteParam(m, static_cast<int>(NO_FRAME));
 651   }
 652 }
 653
 654 bool ParamTraits<cc::CompositorFrameAck>::Read(const Message* m,
 655                                                PickleIterator* iter,
 656                                                param_type* p) {
 657   if (!ReadParam(m, iter, &p->resources))
 658     return false;
 659
 660   if (!ReadParam(m, iter, &p->last_software_frame_id))
 661     return false;
 662
 663   int compositor_frame_type;
 664   if (!ReadParam(m, iter, &compositor_frame_type))
 665     return false;
 666
 667   switch (compositor_frame_type) {
 668     case NO_FRAME:
 669       break;
 670     case GL_FRAME:
 671       p->gl_frame_data.reset(new cc::GLFrameData());
 672       if (!ReadParam(m, iter, p->gl_frame_data.get()))
 673         return false;
 674       break;
 675     default:
 676       return false;
 677   }
 678   return true;
 679 }
 680
 681 void ParamTraits<cc::CompositorFrameAck>::Log(const param_type& p,
 682                                               std::string* l) {
 683   l->append("CompositorFrameAck(");
 684   LogParam(p.resources, l);
 685   l->append(", ");
 686   LogParam(p.last_software_frame_id, l);
 687   l->append(", ");
 688   if (p.gl_frame_data)
 689     LogParam(*p.gl_frame_data, l);
 690   l->append(")");
 691 }
 692
 693 void ParamTraits<cc::DelegatedFrameData>::Write(Message* m,
 694                                                 const param_type& p) {
 695   DCHECK_NE(0u, p.render_pass_list.size());
 696
 697   size_t to_reserve = p.resource_list.size() * sizeof(cc::TransferableResource);
 698   for (size_t i = 0; i < p.render_pass_list.size(); ++i) {
 699     const cc::RenderPass* pass = p.render_pass_list[i];
 700     to_reserve += ReserveSizeForRenderPassWrite(*pass);
 701   }
 702   m->Reserve(to_reserve);
 703
 704   WriteParam(m, p.resource_list);
 705   WriteParam(m, p.render_pass_list.size());
 706   for (size_t i = 0; i < p.render_pass_list.size(); ++i)
 707     WriteParam(m, *p.render_pass_list[i]);
 708 }
 709
 710 bool ParamTraits<cc::DelegatedFrameData>::Read(const Message* m,
 711                                                PickleIterator* iter,
 712                                                param_type* p) {
 713   const static size_t kMaxRenderPasses = 10000;
 714
 715   size_t num_render_passes;
 716   if (!ReadParam(m, iter, &p->resource_list) ||
 717       !ReadParam(m, iter, &num_render_passes) ||
 718       num_render_passes > kMaxRenderPasses || num_render_passes == 0)
 719     return false;
 720   for (size_t i = 0; i < num_render_passes; ++i) {
 721     scoped_ptr<cc::RenderPass> render_pass = cc::RenderPass::Create();
 722     if (!ReadParam(m, iter, render_pass.get()))
 723       return false;
 724     p->render_pass_list.push_back(render_pass.Pass());
 725   }
 726   return true;
 727 }
 728
 729 void ParamTraits<cc::DelegatedFrameData>::Log(const param_type& p,
 730                                               std::string* l) {
 731   l->append("DelegatedFrameData(");
 732   LogParam(p.resource_list, l);
 733   l->append(", [");
 734   for (size_t i = 0; i < p.render_pass_list.size(); ++i) {
 735     if (i)
 736       l->append(", ");
 737     LogParam(*p.render_pass_list[i], l);
 738   }
 739   l->append("])");
 740 }
 741
 742 }  // namespace IPC