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 "cc/output/compositor_frame.h"
   8 #include "cc/output/filter_operations.h"
   9 #include "cc/quads/largest_draw_quad.h"
  10 #include "content/public/common/common_param_traits.h"
  11 #include "third_party/skia/include/core/SkData.h"
  12 #include "third_party/skia/include/core/SkFlattenableSerialization.h"
  13 #include "ui/gfx/transform.h"
  14
  15 namespace IPC {
  16
  17 void ParamTraits<cc::FilterOperation>::Write(
  18     Message* m, const param_type& p) {
  19   WriteParam(m, p.type());
  20   switch (p.type()) {
  21     case cc::FilterOperation::GRAYSCALE:
  22     case cc::FilterOperation::SEPIA:
  23     case cc::FilterOperation::SATURATE:
  24     case cc::FilterOperation::HUE_ROTATE:
  25     case cc::FilterOperation::INVERT:
  26     case cc::FilterOperation::BRIGHTNESS:
  27     case cc::FilterOperation::SATURATING_BRIGHTNESS:
  28     case cc::FilterOperation::CONTRAST:
  29     case cc::FilterOperation::OPACITY:
  30     case cc::FilterOperation::BLUR:
  31       WriteParam(m, p.amount());
  32       break;
  33     case cc::FilterOperation::DROP_SHADOW:
  34       WriteParam(m, p.drop_shadow_offset());
  35       WriteParam(m, p.amount());
  36       WriteParam(m, p.drop_shadow_color());
  37       break;
  38     case cc::FilterOperation::COLOR_MATRIX:
  39       for (int i = 0; i < 20; ++i)
  40         WriteParam(m, p.matrix()[i]);
  41       break;
  42     case cc::FilterOperation::ZOOM:
  43       WriteParam(m, p.amount());
  44       WriteParam(m, p.zoom_inset());
  45       break;
  46     case cc::FilterOperation::REFERENCE:
  47       WriteParam(m, p.image_filter());
  48       break;
  49     case cc::FilterOperation::ALPHA_THRESHOLD:
  50       NOTREACHED();
  51       break;
  52   }
  53 }
  54
  55 bool ParamTraits<cc::FilterOperation>::Read(
  56     const Message* m, PickleIterator* iter, param_type* r) {
  57   cc::FilterOperation::FilterType type;
  58   float amount;
  59   gfx::Point drop_shadow_offset;
  60   SkColor drop_shadow_color;
  61   SkScalar matrix[20];
  62   int zoom_inset;
  63
  64   if (!ReadParam(m, iter, &type))
  65     return false;
  66   r->set_type(type);
  67
  68   bool success = false;
  69   switch (type) {
  70     case cc::FilterOperation::GRAYSCALE:
  71     case cc::FilterOperation::SEPIA:
  72     case cc::FilterOperation::SATURATE:
  73     case cc::FilterOperation::HUE_ROTATE:
  74     case cc::FilterOperation::INVERT:
  75     case cc::FilterOperation::BRIGHTNESS:
  76     case cc::FilterOperation::SATURATING_BRIGHTNESS:
  77     case cc::FilterOperation::CONTRAST:
  78     case cc::FilterOperation::OPACITY:
  79     case cc::FilterOperation::BLUR:
  80       if (ReadParam(m, iter, &amount)) {
  81         r->set_amount(amount);
  82         success = true;
  83       }
  84       break;
  85     case cc::FilterOperation::DROP_SHADOW:
  86       if (ReadParam(m, iter, &drop_shadow_offset) &&
  87           ReadParam(m, iter, &amount) &&
  88           ReadParam(m, iter, &drop_shadow_color)) {
  89         r->set_drop_shadow_offset(drop_shadow_offset);
  90         r->set_amount(amount);
  91         r->set_drop_shadow_color(drop_shadow_color);
  92         success = true;
  93       }
  94       break;
  95     case cc::FilterOperation::COLOR_MATRIX: {
  96       int i;
  97       for (i = 0; i < 20; ++i) {
  98         if (!ReadParam(m, iter, &matrix[i]))
  99           break;
 100       }
 101       if (i == 20) {
 102         r->set_matrix(matrix);
 103         success = true;
 104       }
 105       break;
 106     }
 107     case cc::FilterOperation::ZOOM:
 108       if (ReadParam(m, iter, &amount) &&
 109           ReadParam(m, iter, &zoom_inset) &&
 110           amount >= 0.f &&
 111           zoom_inset >= 0) {
 112         r->set_amount(amount);
 113         r->set_zoom_inset(zoom_inset);
 114         success = true;
 115       }
 116       break;
 117     case cc::FilterOperation::REFERENCE: {
 118       skia::RefPtr<SkImageFilter> filter;
 119       if (!ReadParam(m, iter, &filter)) {
 120         success = false;
 121         break;
 122       }
 123       r->set_image_filter(filter);
 124       success = true;
 125       break;
 126     }
 127     case cc::FilterOperation::ALPHA_THRESHOLD:
 128       break;
 129   }
 130   return success;
 131 }
 132
 133 void ParamTraits<cc::FilterOperation>::Log(
 134     const param_type& p, std::string* l) {
 135   l->append("(");
 136   LogParam(static_cast<unsigned>(p.type()), l);
 137   l->append(", ");
 138
 139   switch (p.type()) {
 140     case cc::FilterOperation::GRAYSCALE:
 141     case cc::FilterOperation::SEPIA:
 142     case cc::FilterOperation::SATURATE:
 143     case cc::FilterOperation::HUE_ROTATE:
 144     case cc::FilterOperation::INVERT:
 145     case cc::FilterOperation::BRIGHTNESS:
 146     case cc::FilterOperation::SATURATING_BRIGHTNESS:
 147     case cc::FilterOperation::CONTRAST:
 148     case cc::FilterOperation::OPACITY:
 149     case cc::FilterOperation::BLUR:
 150       LogParam(p.amount(), l);
 151       break;
 152     case cc::FilterOperation::DROP_SHADOW:
 153       LogParam(p.drop_shadow_offset(), l);
 154       l->append(", ");
 155       LogParam(p.amount(), l);
 156       l->append(", ");
 157       LogParam(p.drop_shadow_color(), l);
 158       break;
 159     case cc::FilterOperation::COLOR_MATRIX:
 160       for (int i = 0; i < 20; ++i) {
 161         if (i)
 162           l->append(", ");
 163         LogParam(p.matrix()[i], l);
 164       }
 165       break;
 166     case cc::FilterOperation::ZOOM:
 167       LogParam(p.amount(), l);
 168       l->append(", ");
 169       LogParam(p.zoom_inset(), l);
 170       break;
 171     case cc::FilterOperation::REFERENCE:
 172       LogParam(p.image_filter(), l);
 173       break;
 174     case cc::FilterOperation::ALPHA_THRESHOLD:
 175       NOTREACHED();
 176       break;
 177   }
 178   l->append(")");
 179 }
 180
 181 void ParamTraits<cc::FilterOperations>::Write(
 182     Message* m, const param_type& p) {
 183   WriteParam(m, p.size());
 184   for (std::size_t i = 0; i < p.size(); ++i) {
 185     WriteParam(m, p.at(i));
 186   }
 187 }
 188
 189 bool ParamTraits<cc::FilterOperations>::Read(
 190     const Message* m, PickleIterator* iter, param_type* r) {
 191   size_t count;
 192   if (!ReadParam(m, iter, &count))
 193     return false;
 194
 195   for (std::size_t i = 0; i < count; ++i) {
 196     cc::FilterOperation op = cc::FilterOperation::CreateEmptyFilter();
 197     if (!ReadParam(m, iter, &op))
 198       return false;
 199     r->Append(op);
 200   }
 201   return true;
 202 }
 203
 204 void ParamTraits<cc::FilterOperations>::Log(
 205     const param_type& p, std::string* l) {
 206   l->append("(");
 207   for (std::size_t i = 0; i < p.size(); ++i) {
 208     if (i)
 209       l->append(", ");
 210     LogParam(p.at(i), l);
 211   }
 212   l->append(")");
 213 }
 214
 215 void ParamTraits<skia::RefPtr<SkImageFilter> >::Write(
 216     Message* m, const param_type& p) {
 217   SkImageFilter* filter = p.get();
 218   if (filter) {
 219     skia::RefPtr<SkData> data =
 220         skia::AdoptRef(SkValidatingSerializeFlattenable(filter));
 221     m->WriteData(static_cast<const char*>(data->data()), data->size());
 222   } else {
 223     m->WriteData(0, 0);
 224   }
 225 }
 226
 227 bool ParamTraits<skia::RefPtr<SkImageFilter> >::Read(
 228     const Message* m, PickleIterator* iter, param_type* r) {
 229   const char* data = 0;
 230   int length = 0;
 231   if (!m->ReadData(iter, &data, &length))
 232     return false;
 233   if (length > 0) {
 234     SkFlattenable* flattenable = SkValidatingDeserializeFlattenable(
 235         data, length, SkImageFilter::GetFlattenableType());
 236     *r = skia::AdoptRef(static_cast<SkImageFilter*>(flattenable));
 237   } else {
 238     r->clear();
 239   }
 240   return true;
 241 }
 242
 243 void ParamTraits<skia::RefPtr<SkImageFilter> >::Log(
 244     const param_type& p, std::string* l) {
 245   l->append("(");
 246   LogParam(p.get() ? p->countInputs() : 0, l);
 247   l->append(")");
 248 }
 249
 250 void ParamTraits<gfx::Transform>::Write(
 251     Message* m, const param_type& p) {
 252 #ifdef SK_MSCALAR_IS_FLOAT
 253   float column_major_data[16];
 254   p.matrix().asColMajorf(column_major_data);
 255 #else
 256   double column_major_data[16];
 257   p.matrix().asColMajord(column_major_data);
 258 #endif
 259   m->WriteBytes(&column_major_data, sizeof(SkMScalar) * 16);
 260 }
 261
 262 bool ParamTraits<gfx::Transform>::Read(
 263     const Message* m, PickleIterator* iter, param_type* r) {
 264   const char* column_major_data;
 265   if (!m->ReadBytes(iter, &column_major_data, sizeof(SkMScalar) * 16))
 266     return false;
 267   r->matrix().setColMajor(
 268       reinterpret_cast<const SkMScalar*>(column_major_data));
 269   return true;
 270 }
 271
 272 void ParamTraits<gfx::Transform>::Log(
 273     const param_type& p, std::string* l) {
 274 #ifdef SK_MSCALAR_IS_FLOAT
 275   float row_major_data[16];
 276   p.matrix().asRowMajorf(row_major_data);
 277 #else
 278   double row_major_data[16];
 279   p.matrix().asRowMajord(row_major_data);
 280 #endif
 281   l->append("(");
 282   for (int i = 0; i < 16; ++i) {
 283     if (i > 0)
 284       l->append(", ");
 285     LogParam(row_major_data[i], l);
 286   }
 287   l->append(") ");
 288 }
 289
 290 void ParamTraits<cc::RenderPass>::Write(
 291     Message* m, const param_type& p) {
 292   WriteParam(m, p.id);
 293   WriteParam(m, p.output_rect);
 294   WriteParam(m, p.damage_rect);
 295   WriteParam(m, p.transform_to_root_target);
 296   WriteParam(m, p.has_transparent_background);
 297   WriteParam(m, p.shared_quad_state_list.size());
 298   WriteParam(m, p.quad_list.size());
 299
 300   size_t shared_quad_state_index = 0;
 301   size_t last_shared_quad_state_index = kuint32max;
 302   for (size_t i = 0; i < p.quad_list.size(); ++i) {
 303     const cc::DrawQuad* quad = p.quad_list[i];
 304     DCHECK(quad->rect.Contains(quad->visible_rect))
 305         << quad->material << " rect: " << quad->rect.ToString()
 306         << " visible_rect: " << quad->visible_rect.ToString();
 307     DCHECK(quad->opaque_rect.IsEmpty() ||
 308            quad->rect.Contains(quad->opaque_rect))
 309         << quad->material << " rect: " << quad->rect.ToString()
 310         << " opaque_rect: " << quad->opaque_rect.ToString();
 311
 312     switch (quad->material) {
 313       case cc::DrawQuad::CHECKERBOARD:
 314         WriteParam(m, *cc::CheckerboardDrawQuad::MaterialCast(quad));
 315         break;
 316       case cc::DrawQuad::DEBUG_BORDER:
 317         WriteParam(m, *cc::DebugBorderDrawQuad::MaterialCast(quad));
 318         break;
 319       case cc::DrawQuad::IO_SURFACE_CONTENT:
 320         WriteParam(m, *cc::IOSurfaceDrawQuad::MaterialCast(quad));
 321         break;
 322       case cc::DrawQuad::PICTURE_CONTENT:
 323         NOTREACHED();
 324         break;
 325       case cc::DrawQuad::TEXTURE_CONTENT:
 326         WriteParam(m, *cc::TextureDrawQuad::MaterialCast(quad));
 327         break;
 328       case cc::DrawQuad::RENDER_PASS:
 329         WriteParam(m, *cc::RenderPassDrawQuad::MaterialCast(quad));
 330         break;
 331       case cc::DrawQuad::SOLID_COLOR:
 332         WriteParam(m, *cc::SolidColorDrawQuad::MaterialCast(quad));
 333         break;
 334       case cc::DrawQuad::SURFACE_CONTENT:
 335         WriteParam(m, *cc::SurfaceDrawQuad::MaterialCast(quad));
 336         break;
 337       case cc::DrawQuad::TILED_CONTENT:
 338         WriteParam(m, *cc::TileDrawQuad::MaterialCast(quad));
 339         break;
 340       case cc::DrawQuad::STREAM_VIDEO_CONTENT:
 341         WriteParam(m, *cc::StreamVideoDrawQuad::MaterialCast(quad));
 342         break;
 343       case cc::DrawQuad::YUV_VIDEO_CONTENT:
 344         WriteParam(m, *cc::YUVVideoDrawQuad::MaterialCast(quad));
 345         break;
 346       case cc::DrawQuad::INVALID:
 347         break;
 348     }
 349
 350     const cc::ScopedPtrVector<cc::SharedQuadState>& sqs_list =
 351         p.shared_quad_state_list;
 352
 353     // This is an invalid index.
 354     size_t bad_index = sqs_list.size();
 355
 356     // Null shared quad states should not occur.
 357     DCHECK(quad->shared_quad_state);
 358     if (!quad->shared_quad_state) {
 359       WriteParam(m, bad_index);
 360       continue;
 361     }
 362
 363     // SharedQuadStates should appear in the order they are used by DrawQuads.
 364     // Find the SharedQuadState for this DrawQuad.
 365     while (shared_quad_state_index < sqs_list.size() &&
 366            quad->shared_quad_state != sqs_list[shared_quad_state_index])
 367       ++shared_quad_state_index;
 368
 369     DCHECK_LT(shared_quad_state_index, sqs_list.size());
 370     if (shared_quad_state_index >= sqs_list.size()) {
 371       WriteParam(m, bad_index);
 372       continue;
 373     }
 374
 375     WriteParam(m, shared_quad_state_index);
 376     if (shared_quad_state_index != last_shared_quad_state_index) {
 377       WriteParam(m, *sqs_list[shared_quad_state_index]);
 378       last_shared_quad_state_index = shared_quad_state_index;
 379     }
 380   }
 381 }
 382
 383 static size_t ReserveSizeForRenderPassWrite(const cc::RenderPass& p) {
 384   size_t to_reserve = sizeof(cc::RenderPass);
 385
 386   to_reserve += p.shared_quad_state_list.size() * sizeof(cc::SharedQuadState);
 387
 388   // The shared_quad_state_index for each quad.
 389   to_reserve += p.quad_list.size() * sizeof(size_t);
 390
 391   // The largest quad type, verified by a unit test.
 392   to_reserve += p.quad_list.size() * sizeof(cc::kLargestDrawQuad);
 393   return to_reserve;
 394 }
 395
 396 template<typename QuadType>
 397 static scoped_ptr<cc::DrawQuad> ReadDrawQuad(const Message* m,
 398                                              PickleIterator* iter) {
 399   scoped_ptr<QuadType> quad(new QuadType);
 400   if (!ReadParam(m, iter, quad.get()))
 401     return scoped_ptr<QuadType>().template PassAs<cc::DrawQuad>();
 402   return quad.template PassAs<cc::DrawQuad>();
 403 }
 404
 405 bool ParamTraits<cc::RenderPass>::Read(
 406     const Message* m, PickleIterator* iter, param_type* p) {
 407   cc::RenderPass::Id id(-1, -1);
 408   gfx::Rect output_rect;
 409   gfx::Rect damage_rect;
 410   gfx::Transform transform_to_root_target;
 411   bool has_transparent_background;
 412   size_t shared_quad_state_list_size;
 413   size_t quad_list_size;
 414
 415   if (!ReadParam(m, iter, &id) ||
 416       !ReadParam(m, iter, &output_rect) ||
 417       !ReadParam(m, iter, &damage_rect) ||
 418       !ReadParam(m, iter, &transform_to_root_target) ||
 419       !ReadParam(m, iter, &has_transparent_background) ||
 420       !ReadParam(m, iter, &shared_quad_state_list_size) ||
 421       !ReadParam(m, iter, &quad_list_size))
 422     return false;
 423
 424   p->SetAll(id,
 425             output_rect,
 426             damage_rect,
 427             transform_to_root_target,
 428             has_transparent_background);
 429
 430   size_t last_shared_quad_state_index = kuint32max;
 431   for (size_t i = 0; i < quad_list_size; ++i) {
 432     cc::DrawQuad::Material material;
 433     PickleIterator temp_iter = *iter;
 434     if (!ReadParam(m, &temp_iter, &material))
 435       return false;
 436
 437     scoped_ptr<cc::DrawQuad> draw_quad;
 438     switch (material) {
 439       case cc::DrawQuad::CHECKERBOARD:
 440         draw_quad = ReadDrawQuad<cc::CheckerboardDrawQuad>(m, iter);
 441         break;
 442       case cc::DrawQuad::DEBUG_BORDER:
 443         draw_quad = ReadDrawQuad<cc::DebugBorderDrawQuad>(m, iter);
 444         break;
 445       case cc::DrawQuad::IO_SURFACE_CONTENT:
 446         draw_quad = ReadDrawQuad<cc::IOSurfaceDrawQuad>(m, iter);
 447         break;
 448       case cc::DrawQuad::PICTURE_CONTENT:
 449         NOTREACHED();
 450         return false;
 451       case cc::DrawQuad::SURFACE_CONTENT:
 452         draw_quad = ReadDrawQuad<cc::SurfaceDrawQuad>(m, iter);
 453         break;
 454       case cc::DrawQuad::TEXTURE_CONTENT:
 455         draw_quad = ReadDrawQuad<cc::TextureDrawQuad>(m, iter);
 456         break;
 457       case cc::DrawQuad::RENDER_PASS:
 458         draw_quad = ReadDrawQuad<cc::RenderPassDrawQuad>(m, iter);
 459         break;
 460       case cc::DrawQuad::SOLID_COLOR:
 461         draw_quad = ReadDrawQuad<cc::SolidColorDrawQuad>(m, iter);
 462         break;
 463       case cc::DrawQuad::TILED_CONTENT:
 464         draw_quad = ReadDrawQuad<cc::TileDrawQuad>(m, iter);
 465         break;
 466       case cc::DrawQuad::STREAM_VIDEO_CONTENT:
 467         draw_quad = ReadDrawQuad<cc::StreamVideoDrawQuad>(m, iter);
 468         break;
 469       case cc::DrawQuad::YUV_VIDEO_CONTENT:
 470         draw_quad = ReadDrawQuad<cc::YUVVideoDrawQuad>(m, iter);
 471         break;
 472       case cc::DrawQuad::INVALID:
 473         break;
 474     }
 475     if (!draw_quad)
 476       return false;
 477     if (!draw_quad->rect.Contains(draw_quad->visible_rect)) {
 478       LOG(ERROR) << "Quad with invalid visible rect " << draw_quad->material
 479                  << " rect: " << draw_quad->rect.ToString()
 480                  << " visible_rect: " << draw_quad->visible_rect.ToString();
 481       return false;
 482     }
 483     if (!draw_quad->opaque_rect.IsEmpty() &&
 484         !draw_quad->rect.Contains(draw_quad->opaque_rect)) {
 485       LOG(ERROR) << "Quad with invalid opaque rect " << draw_quad->material
 486                  << " rect: " << draw_quad->rect.ToString()
 487                  << " opaque_rect: " << draw_quad->opaque_rect.ToString();
 488       return false;
 489     }
 490
 491     size_t shared_quad_state_index;
 492     if (!ReadParam(m, iter, &shared_quad_state_index))
 493       return false;
 494     if (shared_quad_state_index >= shared_quad_state_list_size)
 495       return false;
 496     // SharedQuadState indexes should be in ascending order.
 497     if (last_shared_quad_state_index != kuint32max &&
 498         shared_quad_state_index < last_shared_quad_state_index)
 499       return false;
 500
 501     // If the quad has a new shared quad state, read it in.
 502     if (last_shared_quad_state_index != shared_quad_state_index) {
 503       cc::SharedQuadState* state = p->CreateAndAppendSharedQuadState();
 504       if (!ReadParam(m, iter, state))
 505         return false;
 506       last_shared_quad_state_index = shared_quad_state_index;
 507     }
 508
 509     draw_quad->shared_quad_state = p->shared_quad_state_list.back();
 510     p->quad_list.push_back(draw_quad.Pass());
 511   }
 512
 513   return true;
 514 }
 515
 516 void ParamTraits<cc::RenderPass>::Log(
 517     const param_type& p, std::string* l) {
 518   l->append("RenderPass((");
 519   LogParam(p.id, l);
 520   l->append("), ");
 521   LogParam(p.output_rect, l);
 522   l->append(", ");
 523   LogParam(p.damage_rect, l);
 524   l->append(", ");
 525   LogParam(p.transform_to_root_target, l);
 526   l->append(", ");
 527   LogParam(p.has_transparent_background, l);
 528   l->append(", ");
 529
 530   l->append("[");
 531   for (size_t i = 0; i < p.shared_quad_state_list.size(); ++i) {
 532     if (i)
 533       l->append(", ");
 534     LogParam(*p.shared_quad_state_list[i], l);
 535   }
 536   l->append("], [");
 537   for (size_t i = 0; i < p.quad_list.size(); ++i) {
 538     if (i)
 539       l->append(", ");
 540     const cc::DrawQuad* quad = p.quad_list[i];
 541     switch (quad->material) {
 542       case cc::DrawQuad::CHECKERBOARD:
 543         LogParam(*cc::CheckerboardDrawQuad::MaterialCast(quad), l);
 544         break;
 545       case cc::DrawQuad::DEBUG_BORDER:
 546         LogParam(*cc::DebugBorderDrawQuad::MaterialCast(quad), l);
 547         break;
 548       case cc::DrawQuad::IO_SURFACE_CONTENT:
 549         LogParam(*cc::IOSurfaceDrawQuad::MaterialCast(quad), l);
 550         break;
 551       case cc::DrawQuad::PICTURE_CONTENT:
 552         NOTREACHED();
 553         break;
 554       case cc::DrawQuad::TEXTURE_CONTENT:
 555         LogParam(*cc::TextureDrawQuad::MaterialCast(quad), l);
 556         break;
 557       case cc::DrawQuad::RENDER_PASS:
 558         LogParam(*cc::RenderPassDrawQuad::MaterialCast(quad), l);
 559         break;
 560       case cc::DrawQuad::SOLID_COLOR:
 561         LogParam(*cc::SolidColorDrawQuad::MaterialCast(quad), l);
 562         break;
 563       case cc::DrawQuad::SURFACE_CONTENT:
 564         LogParam(*cc::SurfaceDrawQuad::MaterialCast(quad), l);
 565         break;
 566       case cc::DrawQuad::TILED_CONTENT:
 567         LogParam(*cc::TileDrawQuad::MaterialCast(quad), l);
 568         break;
 569       case cc::DrawQuad::STREAM_VIDEO_CONTENT:
 570         LogParam(*cc::StreamVideoDrawQuad::MaterialCast(quad), l);
 571         break;
 572       case cc::DrawQuad::YUV_VIDEO_CONTENT:
 573         LogParam(*cc::YUVVideoDrawQuad::MaterialCast(quad), l);
 574         break;
 575       case cc::DrawQuad::INVALID:
 576         break;
 577     }
 578   }
 579   l->append("])");
 580 }
 581
 582 namespace {
 583   enum CompositorFrameType {
 584     NO_FRAME,
 585     DELEGATED_FRAME,
 586     GL_FRAME,
 587     SOFTWARE_FRAME,
 588   };
 589 }
 590
 591 void ParamTraits<cc::CompositorFrame>::Write(Message* m,
 592                                              const param_type& p) {
 593   WriteParam(m, p.metadata);
 594   if (p.delegated_frame_data) {
 595     DCHECK(!p.gl_frame_data);
 596     DCHECK(!p.software_frame_data);
 597     WriteParam(m, static_cast<int>(DELEGATED_FRAME));
 598     WriteParam(m, *p.delegated_frame_data);
 599   } else if (p.gl_frame_data) {
 600     DCHECK(!p.software_frame_data);
 601     WriteParam(m, static_cast<int>(GL_FRAME));
 602     WriteParam(m, *p.gl_frame_data);
 603   } else if (p.software_frame_data) {
 604     WriteParam(m, static_cast<int>(SOFTWARE_FRAME));
 605     WriteParam(m, *p.software_frame_data);
 606   } else {
 607     WriteParam(m, static_cast<int>(NO_FRAME));
 608   }
 609 }
 610
 611 bool ParamTraits<cc::CompositorFrame>::Read(const Message* m,
 612                                             PickleIterator* iter,
 613                                             param_type* p) {
 614   if (!ReadParam(m, iter, &p->metadata))
 615     return false;
 616
 617   int compositor_frame_type;
 618   if (!ReadParam(m, iter, &compositor_frame_type))
 619     return false;
 620
 621   switch (compositor_frame_type) {
 622     case DELEGATED_FRAME:
 623       p->delegated_frame_data.reset(new cc::DelegatedFrameData());
 624       if (!ReadParam(m, iter, p->delegated_frame_data.get()))
 625         return false;
 626       break;
 627     case GL_FRAME:
 628       p->gl_frame_data.reset(new cc::GLFrameData());
 629       if (!ReadParam(m, iter, p->gl_frame_data.get()))
 630         return false;
 631       break;
 632     case SOFTWARE_FRAME:
 633       p->software_frame_data.reset(new cc::SoftwareFrameData());
 634       if (!ReadParam(m, iter, p->software_frame_data.get()))
 635         return false;
 636       break;
 637     case NO_FRAME:
 638       break;
 639     default:
 640       return false;
 641   }
 642   return true;
 643 }
 644
 645 void ParamTraits<cc::CompositorFrame>::Log(const param_type& p,
 646                                            std::string* l) {
 647   l->append("CompositorFrame(");
 648   LogParam(p.metadata, l);
 649   l->append(", ");
 650   if (p.delegated_frame_data)
 651     LogParam(*p.delegated_frame_data, l);
 652   else if (p.gl_frame_data)
 653     LogParam(*p.gl_frame_data, l);
 654   else if (p.software_frame_data)
 655     LogParam(*p.software_frame_data, l);
 656   l->append(")");
 657 }
 658
 659 void ParamTraits<cc::CompositorFrameAck>::Write(Message* m,
 660                                                 const param_type& p) {
 661   WriteParam(m, p.resources);
 662   WriteParam(m, p.last_software_frame_id);
 663   if (p.gl_frame_data) {
 664     WriteParam(m, static_cast<int>(GL_FRAME));
 665     WriteParam(m, *p.gl_frame_data);
 666   } else {
 667     WriteParam(m, static_cast<int>(NO_FRAME));
 668   }
 669 }
 670
 671 bool ParamTraits<cc::CompositorFrameAck>::Read(const Message* m,
 672                                                PickleIterator* iter,
 673                                                param_type* p) {
 674   if (!ReadParam(m, iter, &p->resources))
 675     return false;
 676
 677   if (!ReadParam(m, iter, &p->last_software_frame_id))
 678     return false;
 679
 680   int compositor_frame_type;
 681   if (!ReadParam(m, iter, &compositor_frame_type))
 682     return false;
 683
 684   switch (compositor_frame_type) {
 685     case NO_FRAME:
 686       break;
 687     case GL_FRAME:
 688       p->gl_frame_data.reset(new cc::GLFrameData());
 689       if (!ReadParam(m, iter, p->gl_frame_data.get()))
 690         return false;
 691       break;
 692     default:
 693       return false;
 694   }
 695   return true;
 696 }
 697
 698 void ParamTraits<cc::CompositorFrameAck>::Log(const param_type& p,
 699                                               std::string* l) {
 700   l->append("CompositorFrameAck(");
 701   LogParam(p.resources, l);
 702   l->append(", ");
 703   LogParam(p.last_software_frame_id, l);
 704   l->append(", ");
 705   if (p.gl_frame_data)
 706     LogParam(*p.gl_frame_data, l);
 707   l->append(")");
 708 }
 709
 710 void ParamTraits<cc::DelegatedFrameData>::Write(Message* m,
 711                                                 const param_type& p) {
 712   DCHECK_NE(0u, p.render_pass_list.size());
 713
 714   size_t to_reserve = sizeof(p.device_scale_factor);
 715   to_reserve += p.resource_list.size() * sizeof(cc::TransferableResource);
 716   for (size_t i = 0; i < p.render_pass_list.size(); ++i) {
 717     const cc::RenderPass* pass = p.render_pass_list[i];
 718     to_reserve += ReserveSizeForRenderPassWrite(*pass);
 719   }
 720   m->Reserve(to_reserve);
 721
 722   WriteParam(m, p.device_scale_factor);
 723   WriteParam(m, p.resource_list);
 724   WriteParam(m, p.render_pass_list.size());
 725   for (size_t i = 0; i < p.render_pass_list.size(); ++i)
 726     WriteParam(m, *p.render_pass_list[i]);
 727 }
 728
 729 bool ParamTraits<cc::DelegatedFrameData>::Read(const Message* m,
 730                                                PickleIterator* iter,
 731                                                param_type* p) {
 732   if (!ReadParam(m, iter, &p->device_scale_factor))
 733     return false;
 734
 735   const static size_t kMaxRenderPasses = 10000;
 736
 737   size_t num_render_passes;
 738   if (!ReadParam(m, iter, &p->resource_list) ||
 739       !ReadParam(m, iter, &num_render_passes) ||
 740       num_render_passes > kMaxRenderPasses || num_render_passes == 0)
 741     return false;
 742   for (size_t i = 0; i < num_render_passes; ++i) {
 743     scoped_ptr<cc::RenderPass> render_pass = cc::RenderPass::Create();
 744     if (!ReadParam(m, iter, render_pass.get()))
 745       return false;
 746     p->render_pass_list.push_back(render_pass.Pass());
 747   }
 748   return true;
 749 }
 750
 751 void ParamTraits<cc::DelegatedFrameData>::Log(const param_type& p,
 752                                               std::string* l) {
 753   l->append("DelegatedFrameData(");
 754   LogParam(p.device_scale_factor, l);
 755   LogParam(p.resource_list, l);
 756   l->append(", [");
 757   for (size_t i = 0; i < p.render_pass_list.size(); ++i) {
 758     if (i)
 759       l->append(", ");
 760     LogParam(*p.render_pass_list[i], l);
 761   }
 762   l->append("])");
 763 }
 764
 765 void ParamTraits<cc::SoftwareFrameData>::Write(Message* m,
 766                                                const param_type& p) {
 767   DCHECK(cc::SharedBitmap::VerifySizeInBytes(p.size));
 768
 769   m->Reserve(sizeof(cc::SoftwareFrameData));
 770   WriteParam(m, p.id);
 771   WriteParam(m, p.size);
 772   WriteParam(m, p.damage_rect);
 773   WriteParam(m, p.bitmap_id);
 774 }
 775
 776 bool ParamTraits<cc::SoftwareFrameData>::Read(const Message* m,
 777                                               PickleIterator* iter,
 778                                               param_type* p) {
 779   if (!ReadParam(m, iter, &p->id))
 780     return false;
 781   if (!ReadParam(m, iter, &p->size) ||
 782       !cc::SharedBitmap::VerifySizeInBytes(p->size))
 783     return false;
 784   if (!ReadParam(m, iter, &p->damage_rect))
 785     return false;
 786   if (!ReadParam(m, iter, &p->bitmap_id))
 787     return false;
 788   return true;
 789 }
 790
 791 void ParamTraits<cc::SoftwareFrameData>::Log(const param_type& p,
 792                                              std::string* l) {
 793   l->append("SoftwareFrameData(");
 794   LogParam(p.id, l);
 795   l->append(", ");
 796   LogParam(p.size, l);
 797   l->append(", ");
 798   LogParam(p.damage_rect, l);
 799   l->append(", ");
 800   LogParam(p.bitmap_id, l);
 801   l->append(")");
 802 }
 803
 804 }  // namespace IPC