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     case cc::FilterOperation::ALPHA_THRESHOLD:
  51       NOTREACHED();
  52       break;
  53   }
  54 }
  55
  56 bool ParamTraits<cc::FilterOperation>::Read(
  57     const Message* m, PickleIterator* iter, param_type* r) {
  58   cc::FilterOperation::FilterType type;
  59   float amount;
  60   gfx::Point drop_shadow_offset;
  61   SkColor drop_shadow_color;
  62   SkScalar matrix[20];
  63   int zoom_inset;
  64
  65   if (!ReadParam(m, iter, &type))
  66     return false;
  67   r->set_type(type);
  68
  69   bool success = false;
  70   switch (type) {
  71     case cc::FilterOperation::GRAYSCALE:
  72     case cc::FilterOperation::SEPIA:
  73     case cc::FilterOperation::SATURATE:
  74     case cc::FilterOperation::HUE_ROTATE:
  75     case cc::FilterOperation::INVERT:
  76     case cc::FilterOperation::BRIGHTNESS:
  77     case cc::FilterOperation::SATURATING_BRIGHTNESS:
  78     case cc::FilterOperation::CONTRAST:
  79     case cc::FilterOperation::OPACITY:
  80     case cc::FilterOperation::BLUR:
  81       if (ReadParam(m, iter, &amount)) {
  82         r->set_amount(amount);
  83         success = true;
  84       }
  85       break;
  86     case cc::FilterOperation::DROP_SHADOW:
  87       if (ReadParam(m, iter, &drop_shadow_offset) &&
  88           ReadParam(m, iter, &amount) &&
  89           ReadParam(m, iter, &drop_shadow_color)) {
  90         r->set_drop_shadow_offset(drop_shadow_offset);
  91         r->set_amount(amount);
  92         r->set_drop_shadow_color(drop_shadow_color);
  93         success = true;
  94       }
  95       break;
  96     case cc::FilterOperation::COLOR_MATRIX: {
  97       int i;
  98       for (i = 0; i < 20; ++i) {
  99         if (!ReadParam(m, iter, &matrix[i]))
 100           break;
 101       }
 102       if (i == 20) {
 103         r->set_matrix(matrix);
 104         success = true;
 105       }
 106       break;
 107     }
 108     case cc::FilterOperation::ZOOM:
 109       if (ReadParam(m, iter, &amount) &&
 110           ReadParam(m, iter, &zoom_inset) &&
 111           amount >= 0.f &&
 112           zoom_inset >= 0) {
 113         r->set_amount(amount);
 114         r->set_zoom_inset(zoom_inset);
 115         success = true;
 116       }
 117       break;
 118     case cc::FilterOperation::REFERENCE: {
 119       skia::RefPtr<SkImageFilter> filter;
 120       if (!ReadParam(m, iter, &filter)) {
 121         success = false;
 122         break;
 123       }
 124       r->set_image_filter(filter);
 125       success = true;
 126       break;
 127     }
 128     case cc::FilterOperation::ALPHA_THRESHOLD:
 129       break;
 130   }
 131   return success;
 132 }
 133
 134 void ParamTraits<cc::FilterOperation>::Log(
 135     const param_type& p, std::string* l) {
 136   l->append("(");
 137   LogParam(static_cast<unsigned>(p.type()), l);
 138   l->append(", ");
 139
 140   switch (p.type()) {
 141     case cc::FilterOperation::GRAYSCALE:
 142     case cc::FilterOperation::SEPIA:
 143     case cc::FilterOperation::SATURATE:
 144     case cc::FilterOperation::HUE_ROTATE:
 145     case cc::FilterOperation::INVERT:
 146     case cc::FilterOperation::BRIGHTNESS:
 147     case cc::FilterOperation::SATURATING_BRIGHTNESS:
 148     case cc::FilterOperation::CONTRAST:
 149     case cc::FilterOperation::OPACITY:
 150     case cc::FilterOperation::BLUR:
 151       LogParam(p.amount(), l);
 152       break;
 153     case cc::FilterOperation::DROP_SHADOW:
 154       LogParam(p.drop_shadow_offset(), l);
 155       l->append(", ");
 156       LogParam(p.amount(), l);
 157       l->append(", ");
 158       LogParam(p.drop_shadow_color(), l);
 159       break;
 160     case cc::FilterOperation::COLOR_MATRIX:
 161       for (int i = 0; i < 20; ++i) {
 162         if (i)
 163           l->append(", ");
 164         LogParam(p.matrix()[i], l);
 165       }
 166       break;
 167     case cc::FilterOperation::ZOOM:
 168       LogParam(p.amount(), l);
 169       l->append(", ");
 170       LogParam(p.zoom_inset(), l);
 171       break;
 172     case cc::FilterOperation::REFERENCE:
 173       LogParam(p.image_filter(), l);
 174       break;
 175     case cc::FilterOperation::ALPHA_THRESHOLD:
 176       NOTREACHED();
 177       break;
 178   }
 179   l->append(")");
 180 }
 181
 182 void ParamTraits<cc::FilterOperations>::Write(
 183     Message* m, const param_type& p) {
 184   WriteParam(m, p.size());
 185   for (std::size_t i = 0; i < p.size(); ++i) {
 186     WriteParam(m, p.at(i));
 187   }
 188 }
 189
 190 bool ParamTraits<cc::FilterOperations>::Read(
 191     const Message* m, PickleIterator* iter, param_type* r) {
 192   size_t count;
 193   if (!ReadParam(m, iter, &count))
 194     return false;
 195
 196   for (std::size_t i = 0; i < count; ++i) {
 197     cc::FilterOperation op = cc::FilterOperation::CreateEmptyFilter();
 198     if (!ReadParam(m, iter, &op))
 199       return false;
 200     r->Append(op);
 201   }
 202   return true;
 203 }
 204
 205 void ParamTraits<cc::FilterOperations>::Log(
 206     const param_type& p, std::string* l) {
 207   l->append("(");
 208   for (std::size_t i = 0; i < p.size(); ++i) {
 209     if (i)
 210       l->append(", ");
 211     LogParam(p.at(i), l);
 212   }
 213   l->append(")");
 214 }
 215
 216 void ParamTraits<skia::RefPtr<SkImageFilter> >::Write(
 217     Message* m, const param_type& p) {
 218   SkImageFilter* filter = p.get();
 219   const CommandLine& command_line = *CommandLine::ForCurrentProcess();
 220   if (filter && !command_line.HasSwitch(switches::kDisableFiltersOverIPC)) {
 221     skia::RefPtr<SkData> data =
 222         skia::AdoptRef(SkValidatingSerializeFlattenable(filter));
 223     m->WriteData(static_cast<const char*>(data->data()), data->size());
 224   } else {
 225     m->WriteData(0, 0);
 226   }
 227 }
 228
 229 bool ParamTraits<skia::RefPtr<SkImageFilter> >::Read(
 230     const Message* m, PickleIterator* iter, param_type* r) {
 231   const char* data = 0;
 232   int length = 0;
 233   if (!m->ReadData(iter, &data, &length))
 234     return false;
 235   const CommandLine& command_line = *CommandLine::ForCurrentProcess();
 236   if ((length > 0) &&
 237       !command_line.HasSwitch(switches::kDisableFiltersOverIPC)) {
 238     SkFlattenable* flattenable = SkValidatingDeserializeFlattenable(
 239         data, length, SkImageFilter::GetFlattenableType());
 240     *r = skia::AdoptRef(static_cast<SkImageFilter*>(flattenable));
 241   } else {
 242     r->clear();
 243   }
 244   return true;
 245 }
 246
 247 void ParamTraits<skia::RefPtr<SkImageFilter> >::Log(
 248     const param_type& p, std::string* l) {
 249   l->append("(");
 250   LogParam(p.get() ? p->countInputs() : 0, l);
 251   l->append(")");
 252 }
 253
 254 void ParamTraits<gfx::Transform>::Write(
 255     Message* m, const param_type& p) {
 256 #ifdef SK_MSCALAR_IS_FLOAT
 257   float column_major_data[16];
 258   p.matrix().asColMajorf(column_major_data);
 259 #else
 260   double column_major_data[16];
 261   p.matrix().asColMajord(column_major_data);
 262 #endif
 263   m->WriteBytes(&column_major_data, sizeof(SkMScalar) * 16);
 264 }
 265
 266 bool ParamTraits<gfx::Transform>::Read(
 267     const Message* m, PickleIterator* iter, param_type* r) {
 268   const char* column_major_data;
 269   if (!m->ReadBytes(iter, &column_major_data, sizeof(SkMScalar) * 16))
 270     return false;
 271   r->matrix().setColMajor(
 272       reinterpret_cast<const SkMScalar*>(column_major_data));
 273   return true;
 274 }
 275
 276 void ParamTraits<gfx::Transform>::Log(
 277     const param_type& p, std::string* l) {
 278 #ifdef SK_MSCALAR_IS_FLOAT
 279   float row_major_data[16];
 280   p.matrix().asRowMajorf(row_major_data);
 281 #else
 282   double row_major_data[16];
 283   p.matrix().asRowMajord(row_major_data);
 284 #endif
 285   l->append("(");
 286   for (int i = 0; i < 16; ++i) {
 287     if (i > 0)
 288       l->append(", ");
 289     LogParam(row_major_data[i], l);
 290   }
 291   l->append(") ");
 292 }
 293
 294 void ParamTraits<cc::RenderPass>::Write(
 295     Message* m, const param_type& p) {
 296   WriteParam(m, p.id);
 297   WriteParam(m, p.output_rect);
 298   WriteParam(m, p.damage_rect);
 299   WriteParam(m, p.transform_to_root_target);
 300   WriteParam(m, p.has_transparent_background);
 301   WriteParam(m, p.shared_quad_state_list.size());
 302   WriteParam(m, p.quad_list.size());
 303
 304   size_t shared_quad_state_index = 0;
 305   size_t last_shared_quad_state_index = kuint32max;
 306   for (size_t i = 0; i < p.quad_list.size(); ++i) {
 307     const cc::DrawQuad* quad = p.quad_list[i];
 308     DCHECK(quad->rect.Contains(quad->visible_rect))
 309         << quad->material << " rect: " << quad->rect.ToString()
 310         << " visible_rect: " << quad->visible_rect.ToString();
 311     DCHECK(quad->opaque_rect.IsEmpty() ||
 312            quad->rect.Contains(quad->opaque_rect))
 313         << quad->material << " rect: " << quad->rect.ToString()
 314         << " opaque_rect: " << quad->opaque_rect.ToString();
 315
 316     switch (quad->material) {
 317       case cc::DrawQuad::CHECKERBOARD:
 318         WriteParam(m, *cc::CheckerboardDrawQuad::MaterialCast(quad));
 319         break;
 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     const cc::ScopedPtrVector<cc::SharedQuadState>& sqs_list =
 355         p.shared_quad_state_list;
 356
 357     // This is an invalid index.
 358     size_t bad_index = sqs_list.size();
 359
 360     // Null shared quad states should not occur.
 361     DCHECK(quad->shared_quad_state);
 362     if (!quad->shared_quad_state) {
 363       WriteParam(m, bad_index);
 364       continue;
 365     }
 366
 367     // SharedQuadStates should appear in the order they are used by DrawQuads.
 368     // Find the SharedQuadState for this DrawQuad.
 369     while (shared_quad_state_index < sqs_list.size() &&
 370            quad->shared_quad_state != sqs_list[shared_quad_state_index])
 371       ++shared_quad_state_index;
 372
 373     DCHECK_LT(shared_quad_state_index, sqs_list.size());
 374     if (shared_quad_state_index >= sqs_list.size()) {
 375       WriteParam(m, bad_index);
 376       continue;
 377     }
 378
 379     WriteParam(m, shared_quad_state_index);
 380     if (shared_quad_state_index != last_shared_quad_state_index) {
 381       WriteParam(m, *sqs_list[shared_quad_state_index]);
 382       last_shared_quad_state_index = shared_quad_state_index;
 383     }
 384   }
 385 }
 386
 387 static size_t ReserveSizeForRenderPassWrite(const cc::RenderPass& p) {
 388   size_t to_reserve = sizeof(cc::RenderPass);
 389
 390   to_reserve += p.shared_quad_state_list.size() * sizeof(cc::SharedQuadState);
 391
 392   // The shared_quad_state_index for each quad.
 393   to_reserve += p.quad_list.size() * sizeof(size_t);
 394
 395   // The largest quad type, verified by a unit test.
 396   to_reserve += p.quad_list.size() * sizeof(cc::RenderPassDrawQuad);
 397   return to_reserve;
 398 }
 399
 400 template<typename QuadType>
 401 static scoped_ptr<cc::DrawQuad> ReadDrawQuad(const Message* m,
 402                                              PickleIterator* iter) {
 403   scoped_ptr<QuadType> quad = QuadType::Create();
 404   if (!ReadParam(m, iter, quad.get()))
 405     return scoped_ptr<QuadType>().template PassAs<cc::DrawQuad>();
 406   return quad.template PassAs<cc::DrawQuad>();
 407 }
 408
 409 bool ParamTraits<cc::RenderPass>::Read(
 410     const Message* m, PickleIterator* iter, param_type* p) {
 411   cc::RenderPass::Id id(-1, -1);
 412   gfx::Rect output_rect;
 413   gfx::Rect damage_rect;
 414   gfx::Transform transform_to_root_target;
 415   bool has_transparent_background;
 416   size_t shared_quad_state_list_size;
 417   size_t quad_list_size;
 418
 419   if (!ReadParam(m, iter, &id) ||
 420       !ReadParam(m, iter, &output_rect) ||
 421       !ReadParam(m, iter, &damage_rect) ||
 422       !ReadParam(m, iter, &transform_to_root_target) ||
 423       !ReadParam(m, iter, &has_transparent_background) ||
 424       !ReadParam(m, iter, &shared_quad_state_list_size) ||
 425       !ReadParam(m, iter, &quad_list_size))
 426     return false;
 427
 428   p->SetAll(id,
 429             output_rect,
 430             damage_rect,
 431             transform_to_root_target,
 432             has_transparent_background);
 433
 434   size_t last_shared_quad_state_index = kuint32max;
 435   for (size_t i = 0; i < quad_list_size; ++i) {
 436     cc::DrawQuad::Material material;
 437     PickleIterator temp_iter = *iter;
 438     if (!ReadParam(m, &temp_iter, &material))
 439       return false;
 440
 441     scoped_ptr<cc::DrawQuad> draw_quad;
 442     switch (material) {
 443       case cc::DrawQuad::CHECKERBOARD:
 444         draw_quad = ReadDrawQuad<cc::CheckerboardDrawQuad>(m, iter);
 445         break;
 446       case cc::DrawQuad::DEBUG_BORDER:
 447         draw_quad = ReadDrawQuad<cc::DebugBorderDrawQuad>(m, iter);
 448         break;
 449       case cc::DrawQuad::IO_SURFACE_CONTENT:
 450         draw_quad = ReadDrawQuad<cc::IOSurfaceDrawQuad>(m, iter);
 451         break;
 452       case cc::DrawQuad::PICTURE_CONTENT:
 453         NOTREACHED();
 454         return false;
 455       case cc::DrawQuad::SURFACE_CONTENT:
 456         draw_quad = ReadDrawQuad<cc::SurfaceDrawQuad>(m, iter);
 457         break;
 458       case cc::DrawQuad::TEXTURE_CONTENT:
 459         draw_quad = ReadDrawQuad<cc::TextureDrawQuad>(m, iter);
 460         break;
 461       case cc::DrawQuad::RENDER_PASS:
 462         draw_quad = ReadDrawQuad<cc::RenderPassDrawQuad>(m, iter);
 463         break;
 464       case cc::DrawQuad::SOLID_COLOR:
 465         draw_quad = ReadDrawQuad<cc::SolidColorDrawQuad>(m, iter);
 466         break;
 467       case cc::DrawQuad::TILED_CONTENT:
 468         draw_quad = ReadDrawQuad<cc::TileDrawQuad>(m, iter);
 469         break;
 470       case cc::DrawQuad::STREAM_VIDEO_CONTENT:
 471         draw_quad = ReadDrawQuad<cc::StreamVideoDrawQuad>(m, iter);
 472         break;
 473       case cc::DrawQuad::YUV_VIDEO_CONTENT:
 474         draw_quad = ReadDrawQuad<cc::YUVVideoDrawQuad>(m, iter);
 475         break;
 476       case cc::DrawQuad::INVALID:
 477         break;
 478     }
 479     if (!draw_quad)
 480       return false;
 481     if (!draw_quad->rect.Contains(draw_quad->visible_rect)) {
 482       LOG(ERROR) << "Quad with invalid visible rect " << draw_quad->material
 483                  << " rect: " << draw_quad->rect.ToString()
 484                  << " visible_rect: " << draw_quad->visible_rect.ToString();
 485       return false;
 486     }
 487     if (!draw_quad->opaque_rect.IsEmpty() &&
 488         !draw_quad->rect.Contains(draw_quad->opaque_rect)) {
 489       LOG(ERROR) << "Quad with invalid opaque rect " << draw_quad->material
 490                  << " rect: " << draw_quad->rect.ToString()
 491                  << " opaque_rect: " << draw_quad->opaque_rect.ToString();
 492       return false;
 493     }
 494
 495     size_t shared_quad_state_index;
 496     if (!ReadParam(m, iter, &shared_quad_state_index))
 497       return false;
 498     if (shared_quad_state_index >= shared_quad_state_list_size)
 499       return false;
 500     // SharedQuadState indexes should be in ascending order.
 501     if (last_shared_quad_state_index != kuint32max &&
 502         shared_quad_state_index < last_shared_quad_state_index)
 503       return false;
 504
 505     // If the quad has a new shared quad state, read it in.
 506     if (last_shared_quad_state_index != shared_quad_state_index) {
 507       cc::SharedQuadState* state = p->CreateAndAppendSharedQuadState();
 508       if (!ReadParam(m, iter, state))
 509         return false;
 510       last_shared_quad_state_index = shared_quad_state_index;
 511     }
 512
 513     draw_quad->shared_quad_state = p->shared_quad_state_list.back();
 514     p->quad_list.push_back(draw_quad.Pass());
 515   }
 516
 517   return true;
 518 }
 519
 520 void ParamTraits<cc::RenderPass>::Log(
 521     const param_type& p, std::string* l) {
 522   l->append("RenderPass((");
 523   LogParam(p.id, l);
 524   l->append("), ");
 525   LogParam(p.output_rect, l);
 526   l->append(", ");
 527   LogParam(p.damage_rect, l);
 528   l->append(", ");
 529   LogParam(p.transform_to_root_target, l);
 530   l->append(", ");
 531   LogParam(p.has_transparent_background, l);
 532   l->append(", ");
 533
 534   l->append("[");
 535   for (size_t i = 0; i < p.shared_quad_state_list.size(); ++i) {
 536     if (i)
 537       l->append(", ");
 538     LogParam(*p.shared_quad_state_list[i], l);
 539   }
 540   l->append("], [");
 541   for (size_t i = 0; i < p.quad_list.size(); ++i) {
 542     if (i)
 543       l->append(", ");
 544     const cc::DrawQuad* quad = p.quad_list[i];
 545     switch (quad->material) {
 546       case cc::DrawQuad::CHECKERBOARD:
 547         LogParam(*cc::CheckerboardDrawQuad::MaterialCast(quad), l);
 548         break;
 549       case cc::DrawQuad::DEBUG_BORDER:
 550         LogParam(*cc::DebugBorderDrawQuad::MaterialCast(quad), l);
 551         break;
 552       case cc::DrawQuad::IO_SURFACE_CONTENT:
 553         LogParam(*cc::IOSurfaceDrawQuad::MaterialCast(quad), l);
 554         break;
 555       case cc::DrawQuad::PICTURE_CONTENT:
 556         NOTREACHED();
 557         break;
 558       case cc::DrawQuad::TEXTURE_CONTENT:
 559         LogParam(*cc::TextureDrawQuad::MaterialCast(quad), l);
 560         break;
 561       case cc::DrawQuad::RENDER_PASS:
 562         LogParam(*cc::RenderPassDrawQuad::MaterialCast(quad), l);
 563         break;
 564       case cc::DrawQuad::SOLID_COLOR:
 565         LogParam(*cc::SolidColorDrawQuad::MaterialCast(quad), l);
 566         break;
 567       case cc::DrawQuad::SURFACE_CONTENT:
 568         LogParam(*cc::SurfaceDrawQuad::MaterialCast(quad), l);
 569         break;
 570       case cc::DrawQuad::TILED_CONTENT:
 571         LogParam(*cc::TileDrawQuad::MaterialCast(quad), l);
 572         break;
 573       case cc::DrawQuad::STREAM_VIDEO_CONTENT:
 574         LogParam(*cc::StreamVideoDrawQuad::MaterialCast(quad), l);
 575         break;
 576       case cc::DrawQuad::YUV_VIDEO_CONTENT:
 577         LogParam(*cc::YUVVideoDrawQuad::MaterialCast(quad), l);
 578         break;
 579       case cc::DrawQuad::INVALID:
 580         break;
 581     }
 582   }
 583   l->append("])");
 584 }
 585
 586 namespace {
 587   enum CompositorFrameType {
 588     NO_FRAME,
 589     DELEGATED_FRAME,
 590     GL_FRAME,
 591     SOFTWARE_FRAME,
 592   };
 593 }
 594
 595 void ParamTraits<cc::CompositorFrame>::Write(Message* m,
 596                                              const param_type& p) {
 597   WriteParam(m, p.metadata);
 598   if (p.delegated_frame_data) {
 599     DCHECK(!p.gl_frame_data);
 600     DCHECK(!p.software_frame_data);
 601     WriteParam(m, static_cast<int>(DELEGATED_FRAME));
 602     WriteParam(m, *p.delegated_frame_data);
 603   } else if (p.gl_frame_data) {
 604     DCHECK(!p.software_frame_data);
 605     WriteParam(m, static_cast<int>(GL_FRAME));
 606     WriteParam(m, *p.gl_frame_data);
 607   } else if (p.software_frame_data) {
 608     WriteParam(m, static_cast<int>(SOFTWARE_FRAME));
 609     WriteParam(m, *p.software_frame_data);
 610   } else {
 611     WriteParam(m, static_cast<int>(NO_FRAME));
 612   }
 613 }
 614
 615 bool ParamTraits<cc::CompositorFrame>::Read(const Message* m,
 616                                             PickleIterator* iter,
 617                                             param_type* p) {
 618   if (!ReadParam(m, iter, &p->metadata))
 619     return false;
 620
 621   int compositor_frame_type;
 622   if (!ReadParam(m, iter, &compositor_frame_type))
 623     return false;
 624
 625   switch (compositor_frame_type) {
 626     case DELEGATED_FRAME:
 627       p->delegated_frame_data.reset(new cc::DelegatedFrameData());
 628       if (!ReadParam(m, iter, p->delegated_frame_data.get()))
 629         return false;
 630       break;
 631     case GL_FRAME:
 632       p->gl_frame_data.reset(new cc::GLFrameData());
 633       if (!ReadParam(m, iter, p->gl_frame_data.get()))
 634         return false;
 635       break;
 636     case SOFTWARE_FRAME:
 637       p->software_frame_data.reset(new cc::SoftwareFrameData());
 638       if (!ReadParam(m, iter, p->software_frame_data.get()))
 639         return false;
 640       break;
 641     case NO_FRAME:
 642       break;
 643     default:
 644       return false;
 645   }
 646   return true;
 647 }
 648
 649 void ParamTraits<cc::CompositorFrame>::Log(const param_type& p,
 650                                            std::string* l) {
 651   l->append("CompositorFrame(");
 652   LogParam(p.metadata, l);
 653   l->append(", ");
 654   if (p.delegated_frame_data)
 655     LogParam(*p.delegated_frame_data, l);
 656   else if (p.gl_frame_data)
 657     LogParam(*p.gl_frame_data, l);
 658   else if (p.software_frame_data)
 659     LogParam(*p.software_frame_data, l);
 660   l->append(")");
 661 }
 662
 663 void ParamTraits<cc::CompositorFrameAck>::Write(Message* m,
 664                                                 const param_type& p) {
 665   WriteParam(m, p.resources);
 666   WriteParam(m, p.last_software_frame_id);
 667   if (p.gl_frame_data) {
 668     WriteParam(m, static_cast<int>(GL_FRAME));
 669     WriteParam(m, *p.gl_frame_data);
 670   } else {
 671     WriteParam(m, static_cast<int>(NO_FRAME));
 672   }
 673 }
 674
 675 bool ParamTraits<cc::CompositorFrameAck>::Read(const Message* m,
 676                                                PickleIterator* iter,
 677                                                param_type* p) {
 678   if (!ReadParam(m, iter, &p->resources))
 679     return false;
 680
 681   if (!ReadParam(m, iter, &p->last_software_frame_id))
 682     return false;
 683
 684   int compositor_frame_type;
 685   if (!ReadParam(m, iter, &compositor_frame_type))
 686     return false;
 687
 688   switch (compositor_frame_type) {
 689     case NO_FRAME:
 690       break;
 691     case GL_FRAME:
 692       p->gl_frame_data.reset(new cc::GLFrameData());
 693       if (!ReadParam(m, iter, p->gl_frame_data.get()))
 694         return false;
 695       break;
 696     default:
 697       return false;
 698   }
 699   return true;
 700 }
 701
 702 void ParamTraits<cc::CompositorFrameAck>::Log(const param_type& p,
 703                                               std::string* l) {
 704   l->append("CompositorFrameAck(");
 705   LogParam(p.resources, l);
 706   l->append(", ");
 707   LogParam(p.last_software_frame_id, l);
 708   l->append(", ");
 709   if (p.gl_frame_data)
 710     LogParam(*p.gl_frame_data, l);
 711   l->append(")");
 712 }
 713
 714 void ParamTraits<cc::DelegatedFrameData>::Write(Message* m,
 715                                                 const param_type& p) {
 716   DCHECK_NE(0u, p.render_pass_list.size());
 717
 718   size_t to_reserve = p.resource_list.size() * sizeof(cc::TransferableResource);
 719   for (size_t i = 0; i < p.render_pass_list.size(); ++i) {
 720     const cc::RenderPass* pass = p.render_pass_list[i];
 721     to_reserve += ReserveSizeForRenderPassWrite(*pass);
 722   }
 723   m->Reserve(to_reserve);
 724
 725   WriteParam(m, p.resource_list);
 726   WriteParam(m, p.render_pass_list.size());
 727   for (size_t i = 0; i < p.render_pass_list.size(); ++i)
 728     WriteParam(m, *p.render_pass_list[i]);
 729 }
 730
 731 bool ParamTraits<cc::DelegatedFrameData>::Read(const Message* m,
 732                                                PickleIterator* iter,
 733                                                param_type* p) {
 734   const static size_t kMaxRenderPasses = 10000;
 735
 736   size_t num_render_passes;
 737   if (!ReadParam(m, iter, &p->resource_list) ||
 738       !ReadParam(m, iter, &num_render_passes) ||
 739       num_render_passes > kMaxRenderPasses || num_render_passes == 0)
 740     return false;
 741   for (size_t i = 0; i < num_render_passes; ++i) {
 742     scoped_ptr<cc::RenderPass> render_pass = cc::RenderPass::Create();
 743     if (!ReadParam(m, iter, render_pass.get()))
 744       return false;
 745     p->render_pass_list.push_back(render_pass.Pass());
 746   }
 747   return true;
 748 }
 749
 750 void ParamTraits<cc::DelegatedFrameData>::Log(const param_type& p,
 751                                               std::string* l) {
 752   l->append("DelegatedFrameData(");
 753   LogParam(p.resource_list, l);
 754   l->append(", [");
 755   for (size_t i = 0; i < p.render_pass_list.size(); ++i) {
 756     if (i)
 757       l->append(", ");
 758     LogParam(*p.render_pass_list[i], l);
 759   }
 760   l->append("])");
 761 }
 762
 763 void ParamTraits<cc::SoftwareFrameData>::Write(Message* m,
 764                                                const param_type& p) {
 765   DCHECK(cc::SharedBitmap::VerifySizeInBytes(p.size));
 766
 767   m->Reserve(sizeof(cc::SoftwareFrameData));
 768   WriteParam(m, p.id);
 769   WriteParam(m, p.size);
 770   WriteParam(m, p.damage_rect);
 771   WriteParam(m, p.bitmap_id);
 772 }
 773
 774 bool ParamTraits<cc::SoftwareFrameData>::Read(const Message* m,
 775                                               PickleIterator* iter,
 776                                               param_type* p) {
 777   if (!ReadParam(m, iter, &p->id))
 778     return false;
 779   if (!ReadParam(m, iter, &p->size) ||
 780       !cc::SharedBitmap::VerifySizeInBytes(p->size))
 781     return false;
 782   if (!ReadParam(m, iter, &p->damage_rect))
 783     return false;
 784   if (!ReadParam(m, iter, &p->bitmap_id))
 785     return false;
 786   return true;
 787 }
 788
 789 void ParamTraits<cc::SoftwareFrameData>::Log(const param_type& p,
 790                                              std::string* l) {
 791   l->append("SoftwareFrameData(");
 792   LogParam(p.id, l);
 793   l->append(", ");
 794   LogParam(p.size, l);
 795   l->append(", ");
 796   LogParam(p.damage_rect, l);
 797   l->append(", ");
 798   LogParam(p.bitmap_id, l);
 799   l->append(")");
 800 }
 801
 802 }  // namespace IPC