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 "cc/output/compositor_frame.h"
   8 #include "cc/output/filter_operations.h"
   9 #include "cc/quads/draw_quad.h"
  10 #include "cc/quads/largest_draw_quad.h"
  11 #include "cc/quads/render_pass_id.h"
  12 #include "content/public/common/common_param_traits.h"
  13 #include "third_party/skia/include/core/SkData.h"
  14 #include "third_party/skia/include/core/SkFlattenableSerialization.h"
  15 #include "ui/gfx/transform.h"
  16
  17 namespace IPC {
  18
  19 void ParamTraits<cc::FilterOperation>::Write(
  20     Message* m, const param_type& p) {
  21   WriteParam(m, p.type());
  22   switch (p.type()) {
  23     case cc::FilterOperation::GRAYSCALE:
  24     case cc::FilterOperation::SEPIA:
  25     case cc::FilterOperation::SATURATE:
  26     case cc::FilterOperation::HUE_ROTATE:
  27     case cc::FilterOperation::INVERT:
  28     case cc::FilterOperation::BRIGHTNESS:
  29     case cc::FilterOperation::SATURATING_BRIGHTNESS:
  30     case cc::FilterOperation::CONTRAST:
  31     case cc::FilterOperation::OPACITY:
  32     case cc::FilterOperation::BLUR:
  33       WriteParam(m, p.amount());
  34       break;
  35     case cc::FilterOperation::DROP_SHADOW:
  36       WriteParam(m, p.drop_shadow_offset());
  37       WriteParam(m, p.amount());
  38       WriteParam(m, p.drop_shadow_color());
  39       break;
  40     case cc::FilterOperation::COLOR_MATRIX:
  41       for (int i = 0; i < 20; ++i)
  42         WriteParam(m, p.matrix()[i]);
  43       break;
  44     case cc::FilterOperation::ZOOM:
  45       WriteParam(m, p.amount());
  46       WriteParam(m, p.zoom_inset());
  47       break;
  48     case cc::FilterOperation::REFERENCE:
  49       WriteParam(m, p.image_filter());
  50       break;
  51     case cc::FilterOperation::ALPHA_THRESHOLD:
  52       NOTREACHED();
  53       break;
  54   }
  55 }
  56
  57 bool ParamTraits<cc::FilterOperation>::Read(const Message* m,
  58                                             base::PickleIterator* iter,
  59                                             param_type* r) {
  60   cc::FilterOperation::FilterType type;
  61   float amount;
  62   gfx::Point drop_shadow_offset;
  63   SkColor drop_shadow_color;
  64   SkScalar matrix[20];
  65   int zoom_inset;
  66
  67   if (!ReadParam(m, iter, &type))
  68     return false;
  69   r->set_type(type);
  70
  71   bool success = false;
  72   switch (type) {
  73     case cc::FilterOperation::GRAYSCALE:
  74     case cc::FilterOperation::SEPIA:
  75     case cc::FilterOperation::SATURATE:
  76     case cc::FilterOperation::HUE_ROTATE:
  77     case cc::FilterOperation::INVERT:
  78     case cc::FilterOperation::BRIGHTNESS:
  79     case cc::FilterOperation::SATURATING_BRIGHTNESS:
  80     case cc::FilterOperation::CONTRAST:
  81     case cc::FilterOperation::OPACITY:
  82     case cc::FilterOperation::BLUR:
  83       if (ReadParam(m, iter, &amount)) {
  84         r->set_amount(amount);
  85         success = true;
  86       }
  87       break;
  88     case cc::FilterOperation::DROP_SHADOW:
  89       if (ReadParam(m, iter, &drop_shadow_offset) &&
  90           ReadParam(m, iter, &amount) &&
  91           ReadParam(m, iter, &drop_shadow_color)) {
  92         r->set_drop_shadow_offset(drop_shadow_offset);
  93         r->set_amount(amount);
  94         r->set_drop_shadow_color(drop_shadow_color);
  95         success = true;
  96       }
  97       break;
  98     case cc::FilterOperation::COLOR_MATRIX: {
  99       int i;
 100       for (i = 0; i < 20; ++i) {
 101         if (!ReadParam(m, iter, &matrix[i]))
 102           break;
 103       }
 104       if (i == 20) {
 105         r->set_matrix(matrix);
 106         success = true;
 107       }
 108       break;
 109     }
 110     case cc::FilterOperation::ZOOM:
 111       if (ReadParam(m, iter, &amount) &&
 112           ReadParam(m, iter, &zoom_inset) &&
 113           amount >= 0.f &&
 114           zoom_inset >= 0) {
 115         r->set_amount(amount);
 116         r->set_zoom_inset(zoom_inset);
 117         success = true;
 118       }
 119       break;
 120     case cc::FilterOperation::REFERENCE: {
 121       skia::RefPtr<SkImageFilter> filter;
 122       if (!ReadParam(m, iter, &filter)) {
 123         success = false;
 124         break;
 125       }
 126       r->set_image_filter(filter);
 127       success = true;
 128       break;
 129     }
 130     case cc::FilterOperation::ALPHA_THRESHOLD:
 131       break;
 132   }
 133   return success;
 134 }
 135
 136 void ParamTraits<cc::FilterOperation>::Log(
 137     const param_type& p, std::string* l) {
 138   l->append("(");
 139   LogParam(static_cast<unsigned>(p.type()), l);
 140   l->append(", ");
 141
 142   switch (p.type()) {
 143     case cc::FilterOperation::GRAYSCALE:
 144     case cc::FilterOperation::SEPIA:
 145     case cc::FilterOperation::SATURATE:
 146     case cc::FilterOperation::HUE_ROTATE:
 147     case cc::FilterOperation::INVERT:
 148     case cc::FilterOperation::BRIGHTNESS:
 149     case cc::FilterOperation::SATURATING_BRIGHTNESS:
 150     case cc::FilterOperation::CONTRAST:
 151     case cc::FilterOperation::OPACITY:
 152     case cc::FilterOperation::BLUR:
 153       LogParam(p.amount(), l);
 154       break;
 155     case cc::FilterOperation::DROP_SHADOW:
 156       LogParam(p.drop_shadow_offset(), l);
 157       l->append(", ");
 158       LogParam(p.amount(), l);
 159       l->append(", ");
 160       LogParam(p.drop_shadow_color(), l);
 161       break;
 162     case cc::FilterOperation::COLOR_MATRIX:
 163       for (int i = 0; i < 20; ++i) {
 164         if (i)
 165           l->append(", ");
 166         LogParam(p.matrix()[i], l);
 167       }
 168       break;
 169     case cc::FilterOperation::ZOOM:
 170       LogParam(p.amount(), l);
 171       l->append(", ");
 172       LogParam(p.zoom_inset(), l);
 173       break;
 174     case cc::FilterOperation::REFERENCE:
 175       LogParam(p.image_filter(), l);
 176       break;
 177     case cc::FilterOperation::ALPHA_THRESHOLD:
 178       NOTREACHED();
 179       break;
 180   }
 181   l->append(")");
 182 }
 183
 184 void ParamTraits<cc::FilterOperations>::Write(
 185     Message* m, const param_type& p) {
 186   WriteParam(m, p.size());
 187   for (std::size_t i = 0; i < p.size(); ++i) {
 188     WriteParam(m, p.at(i));
 189   }
 190 }
 191
 192 bool ParamTraits<cc::FilterOperations>::Read(const Message* m,
 193                                              base::PickleIterator* iter,
 194                                              param_type* r) {
 195   size_t count;
 196   if (!ReadParam(m, iter, &count))
 197     return false;
 198
 199   for (std::size_t i = 0; i < count; ++i) {
 200     cc::FilterOperation op = cc::FilterOperation::CreateEmptyFilter();
 201     if (!ReadParam(m, iter, &op))
 202       return false;
 203     r->Append(op);
 204   }
 205   return true;
 206 }
 207
 208 void ParamTraits<cc::FilterOperations>::Log(
 209     const param_type& p, std::string* l) {
 210   l->append("(");
 211   for (std::size_t i = 0; i < p.size(); ++i) {
 212     if (i)
 213       l->append(", ");
 214     LogParam(p.at(i), l);
 215   }
 216   l->append(")");
 217 }
 218
 219 void ParamTraits<skia::RefPtr<SkImageFilter> >::Write(
 220     Message* m, const param_type& p) {
 221   SkImageFilter* filter = p.get();
 222   if (filter) {
 223     skia::RefPtr<SkData> data =
 224         skia::AdoptRef(SkValidatingSerializeFlattenable(filter));
 225     m->WriteData(static_cast<const char*>(data->data()), data->size());
 226   } else {
 227     m->WriteData(0, 0);
 228   }
 229 }
 230
 231 bool ParamTraits<skia::RefPtr<SkImageFilter>>::Read(const Message* m,
 232                                                     base::PickleIterator* iter,
 233                                                     param_type* r) {
 234   const char* data = 0;
 235   int length = 0;
 236   if (!iter->ReadData(&data, &length))
 237     return false;
 238   if (length > 0) {
 239     SkFlattenable* flattenable = SkValidatingDeserializeFlattenable(
 240         data, length, SkImageFilter::GetFlattenableType());
 241     *r = skia::AdoptRef(static_cast<SkImageFilter*>(flattenable));
 242   } else {
 243     r->clear();
 244   }
 245   return true;
 246 }
 247
 248 void ParamTraits<skia::RefPtr<SkImageFilter> >::Log(
 249     const param_type& p, std::string* l) {
 250   l->append("(");
 251   LogParam(p.get() ? p->countInputs() : 0, l);
 252   l->append(")");
 253 }
 254
 255 void ParamTraits<gfx::Transform>::Write(
 256     Message* m, const param_type& p) {
 257 #ifdef SK_MSCALAR_IS_FLOAT
 258   float column_major_data[16];
 259   p.matrix().asColMajorf(column_major_data);
 260 #else
 261   double column_major_data[16];
 262   p.matrix().asColMajord(column_major_data);
 263 #endif
 264   m->WriteBytes(&column_major_data, sizeof(SkMScalar) * 16);
 265 }
 266
 267 bool ParamTraits<gfx::Transform>::Read(const Message* m,
 268                                        base::PickleIterator* iter,
 269                                        param_type* r) {
 270   const char* column_major_data;
 271   if (!iter->ReadBytes(&column_major_data, sizeof(SkMScalar) * 16))
 272     return false;
 273   r->matrix().setColMajor(
 274       reinterpret_cast<const SkMScalar*>(column_major_data));
 275   return true;
 276 }
 277
 278 void ParamTraits<gfx::Transform>::Log(
 279     const param_type& p, std::string* l) {
 280 #ifdef SK_MSCALAR_IS_FLOAT
 281   float row_major_data[16];
 282   p.matrix().asRowMajorf(row_major_data);
 283 #else
 284   double row_major_data[16];
 285   p.matrix().asRowMajord(row_major_data);
 286 #endif
 287   l->append("(");
 288   for (int i = 0; i < 16; ++i) {
 289     if (i > 0)
 290       l->append(", ");
 291     LogParam(row_major_data[i], l);
 292   }
 293   l->append(") ");
 294 }
 295
 296 void ParamTraits<cc::RenderPass>::Write(
 297     Message* m, const param_type& p) {
 298   WriteParam(m, p.id);
 299   WriteParam(m, p.output_rect);
 300   WriteParam(m, p.damage_rect);
 301   WriteParam(m, p.transform_to_root_target);
 302   WriteParam(m, p.has_transparent_background);
 303   WriteParam(m, p.referenced_surfaces);
 304   WriteParam(m, p.quad_list.size());
 305
 306   cc::SharedQuadStateList::ConstIterator shared_quad_state_iter =
 307       p.shared_quad_state_list.begin();
 308   cc::SharedQuadStateList::ConstIterator last_shared_quad_state_iter =
 309       p.shared_quad_state_list.end();
 310   for (const auto& quad : p.quad_list) {
 311     DCHECK(quad->rect.Contains(quad->visible_rect))
 312         << quad->material << " rect: " << quad->rect.ToString()
 313         << " visible_rect: " << quad->visible_rect.ToString();
 314     DCHECK(quad->opaque_rect.IsEmpty() ||
 315            quad->rect.Contains(quad->opaque_rect))
 316         << quad->material << " rect: " << quad->rect.ToString()
 317         << " opaque_rect: " << quad->opaque_rect.ToString();
 318
 319     switch (quad->material) {
 320       case cc::DrawQuad::DEBUG_BORDER:
 321         WriteParam(m, *cc::DebugBorderDrawQuad::MaterialCast(quad));
 322         break;
 323       case cc::DrawQuad::IO_SURFACE_CONTENT:
 324         WriteParam(m, *cc::IOSurfaceDrawQuad::MaterialCast(quad));
 325         break;
 326       case cc::DrawQuad::PICTURE_CONTENT:
 327         NOTREACHED();
 328         break;
 329       case cc::DrawQuad::TEXTURE_CONTENT:
 330         WriteParam(m, *cc::TextureDrawQuad::MaterialCast(quad));
 331         break;
 332       case cc::DrawQuad::RENDER_PASS:
 333         WriteParam(m, *cc::RenderPassDrawQuad::MaterialCast(quad));
 334         break;
 335       case cc::DrawQuad::SOLID_COLOR:
 336         WriteParam(m, *cc::SolidColorDrawQuad::MaterialCast(quad));
 337         break;
 338       case cc::DrawQuad::SURFACE_CONTENT:
 339         WriteParam(m, *cc::SurfaceDrawQuad::MaterialCast(quad));
 340         break;
 341       case cc::DrawQuad::TILED_CONTENT:
 342         WriteParam(m, *cc::TileDrawQuad::MaterialCast(quad));
 343         break;
 344       case cc::DrawQuad::STREAM_VIDEO_CONTENT:
 345         WriteParam(m, *cc::StreamVideoDrawQuad::MaterialCast(quad));
 346         break;
 347       case cc::DrawQuad::YUV_VIDEO_CONTENT:
 348         WriteParam(m, *cc::YUVVideoDrawQuad::MaterialCast(quad));
 349         break;
 350       case cc::DrawQuad::INVALID:
 351         break;
 352     }
 353
 354     // Null shared quad states should not occur.
 355     DCHECK(quad->shared_quad_state);
 356
 357     // SharedQuadStates should appear in the order they are used by DrawQuads.
 358     // Find the SharedQuadState for this DrawQuad.
 359     while (shared_quad_state_iter != p.shared_quad_state_list.end() &&
 360            quad->shared_quad_state != *shared_quad_state_iter)
 361       ++shared_quad_state_iter;
 362
 363     DCHECK(shared_quad_state_iter != p.shared_quad_state_list.end());
 364
 365     if (shared_quad_state_iter != last_shared_quad_state_iter) {
 366       WriteParam(m, true);
 367       WriteParam(m, **shared_quad_state_iter);
 368       last_shared_quad_state_iter = shared_quad_state_iter;
 369     } else {
 370       WriteParam(m, false);
 371     }
 372   }
 373 }
 374
 375 static size_t ReserveSizeForRenderPassWrite(const cc::RenderPass& p) {
 376   size_t to_reserve = sizeof(cc::RenderPass);
 377
 378   // Whether the quad points to a new shared quad state for each quad.
 379   to_reserve += p.quad_list.size() * sizeof(bool);
 380
 381   // Shared quad state is only written when a quad contains a shared quad state
 382   // that has not been written.
 383   to_reserve += p.shared_quad_state_list.size() * sizeof(cc::SharedQuadState);
 384
 385   // The largest quad type, verified by a unit test.
 386   to_reserve += p.quad_list.size() * cc::LargestDrawQuadSize();
 387
 388   // The actual list of referenced surfaces.
 389   to_reserve += p.referenced_surfaces.size() * sizeof(cc::SurfaceId);
 390   return to_reserve;
 391 }
 392
 393 template <typename QuadType>
 394 static cc::DrawQuad* ReadDrawQuad(const Message* m,
 395                                   base::PickleIterator* iter,
 396                                   cc::RenderPass* render_pass) {
 397   QuadType* quad = render_pass->CreateAndAppendDrawQuad<QuadType>();
 398   if (!ReadParam(m, iter, quad))
 399     return NULL;
 400   return quad;
 401 }
 402
 403 bool ParamTraits<cc::RenderPass>::Read(const Message* m,
 404                                        base::PickleIterator* iter,
 405                                        param_type* p) {
 406   cc::RenderPassId id;
 407   gfx::Rect output_rect;
 408   gfx::Rect damage_rect;
 409   gfx::Transform transform_to_root_target;
 410   bool has_transparent_background;
 411   std::vector<cc::SurfaceId> referenced_surfaces;
 412   size_t quad_list_size;
 413
 414   if (!ReadParam(m, iter, &id) || !ReadParam(m, iter, &output_rect) ||
 415       !ReadParam(m, iter, &damage_rect) ||
 416       !ReadParam(m, iter, &transform_to_root_target) ||
 417       !ReadParam(m, iter, &has_transparent_background) ||
 418       !ReadParam(m, iter, &referenced_surfaces) ||
 419       !ReadParam(m, iter, &quad_list_size))
 420     return false;
 421
 422   p->SetAll(id,
 423             output_rect,
 424             damage_rect,
 425             transform_to_root_target,
 426             has_transparent_background);
 427   p->referenced_surfaces.swap(referenced_surfaces);
 428
 429   for (size_t i = 0; i < quad_list_size; ++i) {
 430     cc::DrawQuad::Material material;
 431     base::PickleIterator temp_iter = *iter;
 432     if (!ReadParam(m, &temp_iter, &material))
 433       return false;
 434
 435     cc::DrawQuad* draw_quad = NULL;
 436     switch (material) {
 437       case cc::DrawQuad::DEBUG_BORDER:
 438         draw_quad = ReadDrawQuad<cc::DebugBorderDrawQuad>(m, iter, p);
 439         break;
 440       case cc::DrawQuad::IO_SURFACE_CONTENT:
 441         draw_quad = ReadDrawQuad<cc::IOSurfaceDrawQuad>(m, iter, p);
 442         break;
 443       case cc::DrawQuad::PICTURE_CONTENT:
 444         NOTREACHED();
 445         return false;
 446       case cc::DrawQuad::SURFACE_CONTENT:
 447         draw_quad = ReadDrawQuad<cc::SurfaceDrawQuad>(m, iter, p);
 448         break;
 449       case cc::DrawQuad::TEXTURE_CONTENT:
 450         draw_quad = ReadDrawQuad<cc::TextureDrawQuad>(m, iter, p);
 451         break;
 452       case cc::DrawQuad::RENDER_PASS:
 453         draw_quad = ReadDrawQuad<cc::RenderPassDrawQuad>(m, iter, p);
 454         break;
 455       case cc::DrawQuad::SOLID_COLOR:
 456         draw_quad = ReadDrawQuad<cc::SolidColorDrawQuad>(m, iter, p);
 457         break;
 458       case cc::DrawQuad::TILED_CONTENT:
 459         draw_quad = ReadDrawQuad<cc::TileDrawQuad>(m, iter, p);
 460         break;
 461       case cc::DrawQuad::STREAM_VIDEO_CONTENT:
 462         draw_quad = ReadDrawQuad<cc::StreamVideoDrawQuad>(m, iter, p);
 463         break;
 464       case cc::DrawQuad::YUV_VIDEO_CONTENT:
 465         draw_quad = ReadDrawQuad<cc::YUVVideoDrawQuad>(m, iter, p);
 466         break;
 467       case cc::DrawQuad::INVALID:
 468         break;
 469     }
 470     if (!draw_quad)
 471       return false;
 472     if (!draw_quad->rect.Contains(draw_quad->visible_rect)) {
 473       LOG(ERROR) << "Quad with invalid visible rect " << draw_quad->material
 474                  << " rect: " << draw_quad->rect.ToString()
 475                  << " visible_rect: " << draw_quad->visible_rect.ToString();
 476       return false;
 477     }
 478     if (!draw_quad->opaque_rect.IsEmpty() &&
 479         !draw_quad->rect.Contains(draw_quad->opaque_rect)) {
 480       LOG(ERROR) << "Quad with invalid opaque rect " << draw_quad->material
 481                  << " rect: " << draw_quad->rect.ToString()
 482                  << " opaque_rect: " << draw_quad->opaque_rect.ToString();
 483       return false;
 484     }
 485
 486     bool has_new_shared_quad_state;
 487     if (!ReadParam(m, iter, &has_new_shared_quad_state))
 488       return false;
 489
 490     // If the quad has a new shared quad state, read it in.
 491     if (has_new_shared_quad_state) {
 492       cc::SharedQuadState* state = p->CreateAndAppendSharedQuadState();
 493       if (!ReadParam(m, iter, state))
 494         return false;
 495     }
 496
 497     draw_quad->shared_quad_state = p->shared_quad_state_list.back();
 498   }
 499
 500   return true;
 501 }
 502
 503 void ParamTraits<cc::RenderPass>::Log(
 504     const param_type& p, std::string* l) {
 505   l->append("RenderPass((");
 506   LogParam(p.id, l);
 507   l->append("), ");
 508   LogParam(p.output_rect, l);
 509   l->append(", ");
 510   LogParam(p.damage_rect, l);
 511   l->append(", ");
 512   LogParam(p.transform_to_root_target, l);
 513   l->append(", ");
 514   LogParam(p.has_transparent_background, l);
 515   l->append(", ");
 516   LogParam(p.referenced_surfaces, l);
 517   l->append(", ");
 518
 519   l->append("[");
 520   for (const auto& shared_quad_state : p.shared_quad_state_list) {
 521     if (shared_quad_state != p.shared_quad_state_list.front())
 522       l->append(", ");
 523     LogParam(*shared_quad_state, l);
 524   }
 525   l->append("], [");
 526   for (const auto& quad : p.quad_list) {
 527     if (quad != p.quad_list.front())
 528       l->append(", ");
 529     switch (quad->material) {
 530       case cc::DrawQuad::DEBUG_BORDER:
 531         LogParam(*cc::DebugBorderDrawQuad::MaterialCast(quad), l);
 532         break;
 533       case cc::DrawQuad::IO_SURFACE_CONTENT:
 534         LogParam(*cc::IOSurfaceDrawQuad::MaterialCast(quad), l);
 535         break;
 536       case cc::DrawQuad::PICTURE_CONTENT:
 537         NOTREACHED();
 538         break;
 539       case cc::DrawQuad::TEXTURE_CONTENT:
 540         LogParam(*cc::TextureDrawQuad::MaterialCast(quad), l);
 541         break;
 542       case cc::DrawQuad::RENDER_PASS:
 543         LogParam(*cc::RenderPassDrawQuad::MaterialCast(quad), l);
 544         break;
 545       case cc::DrawQuad::SOLID_COLOR:
 546         LogParam(*cc::SolidColorDrawQuad::MaterialCast(quad), l);
 547         break;
 548       case cc::DrawQuad::SURFACE_CONTENT:
 549         LogParam(*cc::SurfaceDrawQuad::MaterialCast(quad), l);
 550         break;
 551       case cc::DrawQuad::TILED_CONTENT:
 552         LogParam(*cc::TileDrawQuad::MaterialCast(quad), l);
 553         break;
 554       case cc::DrawQuad::STREAM_VIDEO_CONTENT:
 555         LogParam(*cc::StreamVideoDrawQuad::MaterialCast(quad), l);
 556         break;
 557       case cc::DrawQuad::YUV_VIDEO_CONTENT:
 558         LogParam(*cc::YUVVideoDrawQuad::MaterialCast(quad), l);
 559         break;
 560       case cc::DrawQuad::INVALID:
 561         break;
 562     }
 563   }
 564   l->append("])");
 565 }
 566
 567 namespace {
 568   enum CompositorFrameType {
 569     NO_FRAME,
 570     DELEGATED_FRAME,
 571     GL_FRAME,
 572   };
 573 }
 574
 575 void ParamTraits<cc::CompositorFrame>::Write(Message* m,
 576                                              const param_type& p) {
 577   WriteParam(m, p.metadata);
 578   if (p.delegated_frame_data) {
 579     DCHECK(!p.gl_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     WriteParam(m, static_cast<int>(GL_FRAME));
 584     WriteParam(m, *p.gl_frame_data);
 585   } else {
 586     WriteParam(m, static_cast<int>(NO_FRAME));
 587   }
 588 }
 589
 590 bool ParamTraits<cc::CompositorFrame>::Read(const Message* m,
 591                                             base::PickleIterator* iter,
 592                                             param_type* p) {
 593   if (!ReadParam(m, iter, &p->metadata))
 594     return false;
 595
 596   int compositor_frame_type;
 597   if (!ReadParam(m, iter, &compositor_frame_type))
 598     return false;
 599
 600   switch (compositor_frame_type) {
 601     case DELEGATED_FRAME:
 602       p->delegated_frame_data.reset(new cc::DelegatedFrameData());
 603       if (!ReadParam(m, iter, p->delegated_frame_data.get()))
 604         return false;
 605       break;
 606     case GL_FRAME:
 607       p->gl_frame_data.reset(new cc::GLFrameData());
 608       if (!ReadParam(m, iter, p->gl_frame_data.get()))
 609         return false;
 610       break;
 611     case NO_FRAME:
 612       break;
 613     default:
 614       return false;
 615   }
 616   return true;
 617 }
 618
 619 void ParamTraits<cc::CompositorFrame>::Log(const param_type& p,
 620                                            std::string* l) {
 621   l->append("CompositorFrame(");
 622   LogParam(p.metadata, l);
 623   l->append(", ");
 624   if (p.delegated_frame_data)
 625     LogParam(*p.delegated_frame_data, l);
 626   else if (p.gl_frame_data)
 627     LogParam(*p.gl_frame_data, l);
 628   l->append(")");
 629 }
 630
 631 void ParamTraits<cc::CompositorFrameAck>::Write(Message* m,
 632                                                 const param_type& p) {
 633   WriteParam(m, p.resources);
 634   if (p.gl_frame_data) {
 635     WriteParam(m, static_cast<int>(GL_FRAME));
 636     WriteParam(m, *p.gl_frame_data);
 637   } else {
 638     WriteParam(m, static_cast<int>(NO_FRAME));
 639   }
 640 }
 641
 642 bool ParamTraits<cc::CompositorFrameAck>::Read(const Message* m,
 643                                                base::PickleIterator* iter,
 644                                                param_type* p) {
 645   if (!ReadParam(m, iter, &p->resources))
 646     return false;
 647
 648   int compositor_frame_type;
 649   if (!ReadParam(m, iter, &compositor_frame_type))
 650     return false;
 651
 652   switch (compositor_frame_type) {
 653     case NO_FRAME:
 654       break;
 655     case GL_FRAME:
 656       p->gl_frame_data.reset(new cc::GLFrameData());
 657       if (!ReadParam(m, iter, p->gl_frame_data.get()))
 658         return false;
 659       break;
 660     default:
 661       return false;
 662   }
 663   return true;
 664 }
 665
 666 void ParamTraits<cc::CompositorFrameAck>::Log(const param_type& p,
 667                                               std::string* l) {
 668   l->append("CompositorFrameAck(");
 669   LogParam(p.resources, l);
 670   l->append(", ");
 671   if (p.gl_frame_data)
 672     LogParam(*p.gl_frame_data, l);
 673   l->append(")");
 674 }
 675
 676 void ParamTraits<cc::DelegatedFrameData>::Write(Message* m,
 677                                                 const param_type& p) {
 678   DCHECK_NE(0u, p.render_pass_list.size());
 679
 680   size_t to_reserve = sizeof(p.device_scale_factor);
 681   to_reserve += p.resource_list.size() * sizeof(cc::TransferableResource);
 682   for (size_t i = 0; i < p.render_pass_list.size(); ++i) {
 683     const cc::RenderPass* pass = p.render_pass_list[i];
 684     to_reserve += sizeof(size_t) * 2;
 685     to_reserve += ReserveSizeForRenderPassWrite(*pass);
 686   }
 687   m->Reserve(to_reserve);
 688
 689   WriteParam(m, p.device_scale_factor);
 690   WriteParam(m, p.resource_list);
 691   WriteParam(m, p.render_pass_list.size());
 692   for (const auto* pass : p.render_pass_list) {
 693     WriteParam(m, pass->quad_list.size());
 694     WriteParam(m, pass->shared_quad_state_list.size());
 695     WriteParam(m, *pass);
 696   }
 697 }
 698
 699 bool ParamTraits<cc::DelegatedFrameData>::Read(const Message* m,
 700                                                base::PickleIterator* iter,
 701                                                param_type* p) {
 702   if (!ReadParam(m, iter, &p->device_scale_factor))
 703     return false;
 704
 705   const static size_t kMaxRenderPasses = 10000;
 706   const static size_t kMaxSharedQuadStateListSize = 100000;
 707   const static size_t kMaxQuadListSize = 1000000;
 708
 709   std::set<cc::RenderPassId> pass_set;
 710
 711   size_t num_render_passes;
 712   if (!ReadParam(m, iter, &p->resource_list) ||
 713       !ReadParam(m, iter, &num_render_passes) ||
 714       num_render_passes > kMaxRenderPasses || num_render_passes == 0)
 715     return false;
 716   for (size_t i = 0; i < num_render_passes; ++i) {
 717     size_t quad_list_size;
 718     size_t shared_quad_state_list_size;
 719     if (!ReadParam(m, iter, &quad_list_size) ||
 720         !ReadParam(m, iter, &shared_quad_state_list_size) ||
 721         quad_list_size > kMaxQuadListSize ||
 722         shared_quad_state_list_size > kMaxSharedQuadStateListSize)
 723       return false;
 724     scoped_ptr<cc::RenderPass> render_pass =
 725         cc::RenderPass::Create(shared_quad_state_list_size, quad_list_size);
 726     if (!ReadParam(m, iter, render_pass.get()))
 727       return false;
 728     // Validate that each RenderPassDrawQuad points at a valid RenderPass
 729     // earlier in the frame.
 730     for (const auto* quad : render_pass->quad_list) {
 731       if (quad->material != cc::DrawQuad::RENDER_PASS)
 732         continue;
 733       const cc::RenderPassDrawQuad* rpdq =
 734           cc::RenderPassDrawQuad::MaterialCast(quad);
 735       if (!pass_set.count(rpdq->render_pass_id))
 736         return false;
 737     }
 738     pass_set.insert(render_pass->id);
 739     p->render_pass_list.push_back(render_pass.Pass());
 740   }
 741   return true;
 742 }
 743
 744 void ParamTraits<cc::DelegatedFrameData>::Log(const param_type& p,
 745                                               std::string* l) {
 746   l->append("DelegatedFrameData(");
 747   LogParam(p.device_scale_factor, l);
 748   LogParam(p.resource_list, l);
 749   l->append(", [");
 750   for (size_t i = 0; i < p.render_pass_list.size(); ++i) {
 751     if (i)
 752       l->append(", ");
 753     LogParam(*p.render_pass_list[i], l);
 754   }
 755   l->append("])");
 756 }
 757
 758 void ParamTraits<cc::DrawQuad::Resources>::Write(Message* m,
 759                                                  const param_type& p) {
 760   DCHECK_LE(p.count, cc::DrawQuad::Resources::kMaxResourceIdCount);
 761   WriteParam(m, p.count);
 762   for (size_t i = 0; i < p.count; ++i)
 763     WriteParam(m, p.ids[i]);
 764 }
 765
 766 bool ParamTraits<cc::DrawQuad::Resources>::Read(const Message* m,
 767                                                 base::PickleIterator* iter,
 768                                                 param_type* p) {
 769   if (!ReadParam(m, iter, &p->count))
 770     return false;
 771   if (p->count > cc::DrawQuad::Resources::kMaxResourceIdCount)
 772     return false;
 773   for (size_t i = 0; i < p->count; ++i) {
 774     if (!ReadParam(m, iter, &p->ids[i]))
 775       return false;
 776   }
 777   return true;
 778 }
 779
 780 void ParamTraits<cc::DrawQuad::Resources>::Log(const param_type& p,
 781                                                std::string* l) {
 782   l->append("DrawQuad::Resources(");
 783   LogParam(p.count, l);
 784   l->append(", [");
 785   if (p.count > cc::DrawQuad::Resources::kMaxResourceIdCount) {
 786     l->append("])");
 787     return;
 788   }
 789
 790   for (size_t i = 0; i < p.count; ++i) {
 791     LogParam(p.ids[i], l);
 792     if (i < (p.count - 1))
 793       l->append(", ");
 794   }
 795   l->append("])");
 796 }
 797
 798 void ParamTraits<cc::StreamVideoDrawQuad::OverlayResources>::Write(
 799     Message* m,
 800     const param_type& p) {
 801   for (size_t i = 0; i < cc::DrawQuad::Resources::kMaxResourceIdCount; ++i) {
 802     WriteParam(m, p.size_in_pixels[i]);
 803     WriteParam(m, p.allow_overlay[i]);
 804   }
 805 }
 806
 807 bool ParamTraits<cc::StreamVideoDrawQuad::OverlayResources>::Read(
 808     const Message* m,
 809     base::PickleIterator* iter,
 810     param_type* p) {
 811   for (size_t i = 0; i < cc::DrawQuad::Resources::kMaxResourceIdCount; ++i) {
 812     if (!ReadParam(m, iter, &p->size_in_pixels[i]))
 813       return false;
 814     if (!ReadParam(m, iter, &p->allow_overlay[i]))
 815       return false;
 816   }
 817   return true;
 818 }
 819
 820 void ParamTraits<cc::StreamVideoDrawQuad::OverlayResources>::Log(
 821     const param_type& p,
 822     std::string* l) {
 823   l->append("StreamVideoDrawQuad::OverlayResources([");
 824   for (size_t i = 0; i < cc::DrawQuad::Resources::kMaxResourceIdCount; ++i) {
 825     LogParam(p.size_in_pixels[i], l);
 826     l->append(", ");
 827     LogParam(p.allow_overlay[i], l);
 828     if (i < (cc::DrawQuad::Resources::kMaxResourceIdCount - 1))
 829       l->append(", ");
 830   }
 831   l->append("])");
 832 }
 833
 834 void ParamTraits<cc::TextureDrawQuad::OverlayResources>::Write(
 835     Message* m,
 836     const param_type& p) {
 837   for (size_t i = 0; i < cc::DrawQuad::Resources::kMaxResourceIdCount; ++i) {
 838     WriteParam(m, p.size_in_pixels[i]);
 839     WriteParam(m, p.allow_overlay[i]);
 840   }
 841 }
 842
 843 bool ParamTraits<cc::TextureDrawQuad::OverlayResources>::Read(
 844     const Message* m,
 845     base::PickleIterator* iter,
 846     param_type* p) {
 847   for (size_t i = 0; i < cc::DrawQuad::Resources::kMaxResourceIdCount; ++i) {
 848     if (!ReadParam(m, iter, &p->size_in_pixels[i]))
 849       return false;
 850     if (!ReadParam(m, iter, &p->allow_overlay[i]))
 851       return false;
 852   }
 853   return true;
 854 }
 855
 856 void ParamTraits<cc::TextureDrawQuad::OverlayResources>::Log(
 857     const param_type& p,
 858     std::string* l) {
 859   l->append("TextureDrawQuad::OverlayResources([");
 860   for (size_t i = 0; i < cc::DrawQuad::Resources::kMaxResourceIdCount; ++i) {
 861     LogParam(p.size_in_pixels[i], l);
 862     l->append(", ");
 863     LogParam(p.allow_overlay[i], l);
 864     if (i < (cc::DrawQuad::Resources::kMaxResourceIdCount - 1))
 865       l->append(", ");
 866   }
 867   l->append("])");
 868 }
 869
 870 }  // namespace IPC