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.quad_list.size());
 298
 299   cc::SharedQuadStateList::ConstIterator shared_quad_state_iter =
 300       p.shared_quad_state_list.begin();
 301   cc::SharedQuadStateList::ConstIterator last_shared_quad_state_iter =
 302       p.shared_quad_state_list.end();
 303   for (const auto& quad : p.quad_list) {
 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() || quad.rect.Contains(quad.opaque_rect))
 308         << quad.material << " rect: " << quad.rect.ToString()
 309         << " opaque_rect: " << quad.opaque_rect.ToString();
 310
 311     switch (quad.material) {
 312       case cc::DrawQuad::CHECKERBOARD:
 313         WriteParam(m, *cc::CheckerboardDrawQuad::MaterialCast(&quad));
 314         break;
 315       case cc::DrawQuad::DEBUG_BORDER:
 316         WriteParam(m, *cc::DebugBorderDrawQuad::MaterialCast(&quad));
 317         break;
 318       case cc::DrawQuad::IO_SURFACE_CONTENT:
 319         WriteParam(m, *cc::IOSurfaceDrawQuad::MaterialCast(&quad));
 320         break;
 321       case cc::DrawQuad::PICTURE_CONTENT:
 322         NOTREACHED();
 323         break;
 324       case cc::DrawQuad::TEXTURE_CONTENT:
 325         WriteParam(m, *cc::TextureDrawQuad::MaterialCast(&quad));
 326         break;
 327       case cc::DrawQuad::RENDER_PASS:
 328         WriteParam(m, *cc::RenderPassDrawQuad::MaterialCast(&quad));
 329         break;
 330       case cc::DrawQuad::SOLID_COLOR:
 331         WriteParam(m, *cc::SolidColorDrawQuad::MaterialCast(&quad));
 332         break;
 333       case cc::DrawQuad::SURFACE_CONTENT:
 334         WriteParam(m, *cc::SurfaceDrawQuad::MaterialCast(&quad));
 335         break;
 336       case cc::DrawQuad::TILED_CONTENT:
 337         WriteParam(m, *cc::TileDrawQuad::MaterialCast(&quad));
 338         break;
 339       case cc::DrawQuad::STREAM_VIDEO_CONTENT:
 340         WriteParam(m, *cc::StreamVideoDrawQuad::MaterialCast(&quad));
 341         break;
 342       case cc::DrawQuad::YUV_VIDEO_CONTENT:
 343         WriteParam(m, *cc::YUVVideoDrawQuad::MaterialCast(&quad));
 344         break;
 345       case cc::DrawQuad::INVALID:
 346         break;
 347     }
 348
 349     // Null shared quad states should not occur.
 350     DCHECK(quad.shared_quad_state);
 351
 352     // SharedQuadStates should appear in the order they are used by DrawQuads.
 353     // Find the SharedQuadState for this DrawQuad.
 354     while (shared_quad_state_iter != p.shared_quad_state_list.end() &&
 355            quad.shared_quad_state != &*shared_quad_state_iter)
 356       ++shared_quad_state_iter;
 357
 358     DCHECK(shared_quad_state_iter != p.shared_quad_state_list.end());
 359
 360     if (shared_quad_state_iter != last_shared_quad_state_iter) {
 361       WriteParam(m, true);
 362       WriteParam(m, *shared_quad_state_iter);
 363       last_shared_quad_state_iter = shared_quad_state_iter;
 364     } else {
 365       WriteParam(m, false);
 366     }
 367   }
 368 }
 369
 370 static size_t ReserveSizeForRenderPassWrite(const cc::RenderPass& p) {
 371   size_t to_reserve = sizeof(cc::RenderPass);
 372
 373   // Whether the quad points to a new shared quad state for each quad.
 374   to_reserve += p.quad_list.size() * sizeof(bool);
 375
 376   // Shared quad state is only written when a quad contains a shared quad state
 377   // that has not been written.
 378   to_reserve += p.shared_quad_state_list.size() * sizeof(cc::SharedQuadState);
 379
 380   // The largest quad type, verified by a unit test.
 381   to_reserve += p.quad_list.size() * sizeof(cc::kLargestDrawQuad);
 382   return to_reserve;
 383 }
 384
 385 template <typename QuadType>
 386 static cc::DrawQuad* ReadDrawQuad(const Message* m,
 387                                   PickleIterator* iter,
 388                                   cc::RenderPass* render_pass) {
 389   QuadType* quad = render_pass->CreateAndAppendDrawQuad<QuadType>();
 390   if (!ReadParam(m, iter, quad))
 391     return NULL;
 392   return quad;
 393 }
 394
 395 bool ParamTraits<cc::RenderPass>::Read(
 396     const Message* m, PickleIterator* iter, param_type* p) {
 397   cc::RenderPassId id(-1, -1);
 398   gfx::Rect output_rect;
 399   gfx::Rect damage_rect;
 400   gfx::Transform transform_to_root_target;
 401   bool has_transparent_background;
 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, &quad_list_size))
 410     return false;
 411
 412   p->SetAll(id,
 413             output_rect,
 414             damage_rect,
 415             transform_to_root_target,
 416             has_transparent_background);
 417
 418   for (size_t i = 0; i < quad_list_size; ++i) {
 419     cc::DrawQuad::Material material;
 420     PickleIterator temp_iter = *iter;
 421     if (!ReadParam(m, &temp_iter, &material))
 422       return false;
 423
 424     cc::DrawQuad* draw_quad = NULL;
 425     switch (material) {
 426       case cc::DrawQuad::CHECKERBOARD:
 427         draw_quad = ReadDrawQuad<cc::CheckerboardDrawQuad>(m, iter, p);
 428         break;
 429       case cc::DrawQuad::DEBUG_BORDER:
 430         draw_quad = ReadDrawQuad<cc::DebugBorderDrawQuad>(m, iter, p);
 431         break;
 432       case cc::DrawQuad::IO_SURFACE_CONTENT:
 433         draw_quad = ReadDrawQuad<cc::IOSurfaceDrawQuad>(m, iter, p);
 434         break;
 435       case cc::DrawQuad::PICTURE_CONTENT:
 436         NOTREACHED();
 437         return false;
 438       case cc::DrawQuad::SURFACE_CONTENT:
 439         draw_quad = ReadDrawQuad<cc::SurfaceDrawQuad>(m, iter, p);
 440         break;
 441       case cc::DrawQuad::TEXTURE_CONTENT:
 442         draw_quad = ReadDrawQuad<cc::TextureDrawQuad>(m, iter, p);
 443         break;
 444       case cc::DrawQuad::RENDER_PASS:
 445         draw_quad = ReadDrawQuad<cc::RenderPassDrawQuad>(m, iter, p);
 446         break;
 447       case cc::DrawQuad::SOLID_COLOR:
 448         draw_quad = ReadDrawQuad<cc::SolidColorDrawQuad>(m, iter, p);
 449         break;
 450       case cc::DrawQuad::TILED_CONTENT:
 451         draw_quad = ReadDrawQuad<cc::TileDrawQuad>(m, iter, p);
 452         break;
 453       case cc::DrawQuad::STREAM_VIDEO_CONTENT:
 454         draw_quad = ReadDrawQuad<cc::StreamVideoDrawQuad>(m, iter, p);
 455         break;
 456       case cc::DrawQuad::YUV_VIDEO_CONTENT:
 457         draw_quad = ReadDrawQuad<cc::YUVVideoDrawQuad>(m, iter, p);
 458         break;
 459       case cc::DrawQuad::INVALID:
 460         break;
 461     }
 462     if (!draw_quad)
 463       return false;
 464     if (!draw_quad->rect.Contains(draw_quad->visible_rect)) {
 465       LOG(ERROR) << "Quad with invalid visible rect " << draw_quad->material
 466                  << " rect: " << draw_quad->rect.ToString()
 467                  << " visible_rect: " << draw_quad->visible_rect.ToString();
 468       return false;
 469     }
 470     if (!draw_quad->opaque_rect.IsEmpty() &&
 471         !draw_quad->rect.Contains(draw_quad->opaque_rect)) {
 472       LOG(ERROR) << "Quad with invalid opaque rect " << draw_quad->material
 473                  << " rect: " << draw_quad->rect.ToString()
 474                  << " opaque_rect: " << draw_quad->opaque_rect.ToString();
 475       return false;
 476     }
 477
 478     bool has_new_shared_quad_state;
 479     if (!ReadParam(m, iter, &has_new_shared_quad_state))
 480       return false;
 481
 482     // If the quad has a new shared quad state, read it in.
 483     if (has_new_shared_quad_state) {
 484       cc::SharedQuadState* state = p->CreateAndAppendSharedQuadState();
 485       if (!ReadParam(m, iter, state))
 486         return false;
 487     }
 488
 489     draw_quad->shared_quad_state = p->shared_quad_state_list.back();
 490   }
 491
 492   return true;
 493 }
 494
 495 void ParamTraits<cc::RenderPass>::Log(
 496     const param_type& p, std::string* l) {
 497   l->append("RenderPass((");
 498   LogParam(p.id, l);
 499   l->append("), ");
 500   LogParam(p.output_rect, l);
 501   l->append(", ");
 502   LogParam(p.damage_rect, l);
 503   l->append(", ");
 504   LogParam(p.transform_to_root_target, l);
 505   l->append(", ");
 506   LogParam(p.has_transparent_background, l);
 507   l->append(", ");
 508
 509   l->append("[");
 510   for (const auto& shared_quad_state : p.shared_quad_state_list) {
 511     if (&shared_quad_state != p.shared_quad_state_list.front())
 512       l->append(", ");
 513     LogParam(shared_quad_state, l);
 514   }
 515   l->append("], [");
 516   for (const auto& quad : p.quad_list) {
 517     if (&quad != p.quad_list.front())
 518       l->append(", ");
 519     switch (quad.material) {
 520       case cc::DrawQuad::CHECKERBOARD:
 521         LogParam(*cc::CheckerboardDrawQuad::MaterialCast(&quad), l);
 522         break;
 523       case cc::DrawQuad::DEBUG_BORDER:
 524         LogParam(*cc::DebugBorderDrawQuad::MaterialCast(&quad), l);
 525         break;
 526       case cc::DrawQuad::IO_SURFACE_CONTENT:
 527         LogParam(*cc::IOSurfaceDrawQuad::MaterialCast(&quad), l);
 528         break;
 529       case cc::DrawQuad::PICTURE_CONTENT:
 530         NOTREACHED();
 531         break;
 532       case cc::DrawQuad::TEXTURE_CONTENT:
 533         LogParam(*cc::TextureDrawQuad::MaterialCast(&quad), l);
 534         break;
 535       case cc::DrawQuad::RENDER_PASS:
 536         LogParam(*cc::RenderPassDrawQuad::MaterialCast(&quad), l);
 537         break;
 538       case cc::DrawQuad::SOLID_COLOR:
 539         LogParam(*cc::SolidColorDrawQuad::MaterialCast(&quad), l);
 540         break;
 541       case cc::DrawQuad::SURFACE_CONTENT:
 542         LogParam(*cc::SurfaceDrawQuad::MaterialCast(&quad), l);
 543         break;
 544       case cc::DrawQuad::TILED_CONTENT:
 545         LogParam(*cc::TileDrawQuad::MaterialCast(&quad), l);
 546         break;
 547       case cc::DrawQuad::STREAM_VIDEO_CONTENT:
 548         LogParam(*cc::StreamVideoDrawQuad::MaterialCast(&quad), l);
 549         break;
 550       case cc::DrawQuad::YUV_VIDEO_CONTENT:
 551         LogParam(*cc::YUVVideoDrawQuad::MaterialCast(&quad), l);
 552         break;
 553       case cc::DrawQuad::INVALID:
 554         break;
 555     }
 556   }
 557   l->append("])");
 558 }
 559
 560 namespace {
 561   enum CompositorFrameType {
 562     NO_FRAME,
 563     DELEGATED_FRAME,
 564     GL_FRAME,
 565     SOFTWARE_FRAME,
 566   };
 567 }
 568
 569 void ParamTraits<cc::CompositorFrame>::Write(Message* m,
 570                                              const param_type& p) {
 571   WriteParam(m, p.metadata);
 572   if (p.delegated_frame_data) {
 573     DCHECK(!p.gl_frame_data);
 574     DCHECK(!p.software_frame_data);
 575     WriteParam(m, static_cast<int>(DELEGATED_FRAME));
 576     WriteParam(m, *p.delegated_frame_data);
 577   } else if (p.gl_frame_data) {
 578     DCHECK(!p.software_frame_data);
 579     WriteParam(m, static_cast<int>(GL_FRAME));
 580     WriteParam(m, *p.gl_frame_data);
 581   } else if (p.software_frame_data) {
 582     WriteParam(m, static_cast<int>(SOFTWARE_FRAME));
 583     WriteParam(m, *p.software_frame_data);
 584   } else {
 585     WriteParam(m, static_cast<int>(NO_FRAME));
 586   }
 587 }
 588
 589 bool ParamTraits<cc::CompositorFrame>::Read(const Message* m,
 590                                             PickleIterator* iter,
 591                                             param_type* p) {
 592   if (!ReadParam(m, iter, &p->metadata))
 593     return false;
 594
 595   int compositor_frame_type;
 596   if (!ReadParam(m, iter, &compositor_frame_type))
 597     return false;
 598
 599   switch (compositor_frame_type) {
 600     case DELEGATED_FRAME:
 601       p->delegated_frame_data.reset(new cc::DelegatedFrameData());
 602       if (!ReadParam(m, iter, p->delegated_frame_data.get()))
 603         return false;
 604       break;
 605     case GL_FRAME:
 606       p->gl_frame_data.reset(new cc::GLFrameData());
 607       if (!ReadParam(m, iter, p->gl_frame_data.get()))
 608         return false;
 609       break;
 610     case SOFTWARE_FRAME:
 611       p->software_frame_data.reset(new cc::SoftwareFrameData());
 612       if (!ReadParam(m, iter, p->software_frame_data.get()))
 613         return false;
 614       break;
 615     case NO_FRAME:
 616       break;
 617     default:
 618       return false;
 619   }
 620   return true;
 621 }
 622
 623 void ParamTraits<cc::CompositorFrame>::Log(const param_type& p,
 624                                            std::string* l) {
 625   l->append("CompositorFrame(");
 626   LogParam(p.metadata, l);
 627   l->append(", ");
 628   if (p.delegated_frame_data)
 629     LogParam(*p.delegated_frame_data, l);
 630   else if (p.gl_frame_data)
 631     LogParam(*p.gl_frame_data, l);
 632   else if (p.software_frame_data)
 633     LogParam(*p.software_frame_data, l);
 634   l->append(")");
 635 }
 636
 637 void ParamTraits<cc::CompositorFrameAck>::Write(Message* m,
 638                                                 const param_type& p) {
 639   WriteParam(m, p.resources);
 640   WriteParam(m, p.last_software_frame_id);
 641   if (p.gl_frame_data) {
 642     WriteParam(m, static_cast<int>(GL_FRAME));
 643     WriteParam(m, *p.gl_frame_data);
 644   } else {
 645     WriteParam(m, static_cast<int>(NO_FRAME));
 646   }
 647 }
 648
 649 bool ParamTraits<cc::CompositorFrameAck>::Read(const Message* m,
 650                                                PickleIterator* iter,
 651                                                param_type* p) {
 652   if (!ReadParam(m, iter, &p->resources))
 653     return false;
 654
 655   if (!ReadParam(m, iter, &p->last_software_frame_id))
 656     return false;
 657
 658   int compositor_frame_type;
 659   if (!ReadParam(m, iter, &compositor_frame_type))
 660     return false;
 661
 662   switch (compositor_frame_type) {
 663     case NO_FRAME:
 664       break;
 665     case GL_FRAME:
 666       p->gl_frame_data.reset(new cc::GLFrameData());
 667       if (!ReadParam(m, iter, p->gl_frame_data.get()))
 668         return false;
 669       break;
 670     default:
 671       return false;
 672   }
 673   return true;
 674 }
 675
 676 void ParamTraits<cc::CompositorFrameAck>::Log(const param_type& p,
 677                                               std::string* l) {
 678   l->append("CompositorFrameAck(");
 679   LogParam(p.resources, l);
 680   l->append(", ");
 681   LogParam(p.last_software_frame_id, l);
 682   l->append(", ");
 683   if (p.gl_frame_data)
 684     LogParam(*p.gl_frame_data, l);
 685   l->append(")");
 686 }
 687
 688 void ParamTraits<cc::DelegatedFrameData>::Write(Message* m,
 689                                                 const param_type& p) {
 690   DCHECK_NE(0u, p.render_pass_list.size());
 691
 692   size_t to_reserve = sizeof(p.device_scale_factor);
 693   to_reserve += p.resource_list.size() * sizeof(cc::TransferableResource);
 694   for (size_t i = 0; i < p.render_pass_list.size(); ++i) {
 695     const cc::RenderPass* pass = p.render_pass_list[i];
 696     to_reserve += sizeof(size_t) * 2;
 697     to_reserve += ReserveSizeForRenderPassWrite(*pass);
 698   }
 699   m->Reserve(to_reserve);
 700
 701   WriteParam(m, p.device_scale_factor);
 702   WriteParam(m, p.resource_list);
 703   WriteParam(m, p.render_pass_list.size());
 704   for (size_t i = 0; i < p.render_pass_list.size(); ++i) {
 705     WriteParam(m, p.render_pass_list[i]->quad_list.size());
 706     WriteParam(m, p.render_pass_list[i]->shared_quad_state_list.size());
 707     WriteParam(m, *p.render_pass_list[i]);
 708   }
 709 }
 710
 711 bool ParamTraits<cc::DelegatedFrameData>::Read(const Message* m,
 712                                                PickleIterator* iter,
 713                                                param_type* p) {
 714   if (!ReadParam(m, iter, &p->device_scale_factor))
 715     return false;
 716
 717   const static size_t kMaxRenderPasses = 10000;
 718   const static size_t kMaxSharedQuadStateListSize = 100000;
 719   const static size_t kMaxQuadListSize = 1000000;
 720
 721   size_t num_render_passes;
 722   if (!ReadParam(m, iter, &p->resource_list) ||
 723       !ReadParam(m, iter, &num_render_passes) ||
 724       num_render_passes > kMaxRenderPasses || num_render_passes == 0)
 725     return false;
 726   for (size_t i = 0; i < num_render_passes; ++i) {
 727     size_t quad_list_size;
 728     size_t shared_quad_state_list_size;
 729     if (!ReadParam(m, iter, &quad_list_size) ||
 730         !ReadParam(m, iter, &shared_quad_state_list_size) ||
 731         quad_list_size > kMaxQuadListSize ||
 732         shared_quad_state_list_size > kMaxSharedQuadStateListSize)
 733       return false;
 734     scoped_ptr<cc::RenderPass> render_pass =
 735         cc::RenderPass::Create(shared_quad_state_list_size, quad_list_size);
 736     if (!ReadParam(m, iter, render_pass.get()))
 737       return false;
 738     p->render_pass_list.push_back(render_pass.Pass());
 739   }
 740   return true;
 741 }
 742
 743 void ParamTraits<cc::DelegatedFrameData>::Log(const param_type& p,
 744                                               std::string* l) {
 745   l->append("DelegatedFrameData(");
 746   LogParam(p.device_scale_factor, l);
 747   LogParam(p.resource_list, l);
 748   l->append(", [");
 749   for (size_t i = 0; i < p.render_pass_list.size(); ++i) {
 750     if (i)
 751       l->append(", ");
 752     LogParam(*p.render_pass_list[i], l);
 753   }
 754   l->append("])");
 755 }
 756
 757 void ParamTraits<cc::SoftwareFrameData>::Write(Message* m,
 758                                                const param_type& p) {
 759   DCHECK(cc::SharedBitmap::VerifySizeInBytes(p.size));
 760
 761   m->Reserve(sizeof(cc::SoftwareFrameData));
 762   WriteParam(m, p.id);
 763   WriteParam(m, p.size);
 764   WriteParam(m, p.damage_rect);
 765   WriteParam(m, p.bitmap_id);
 766 }
 767
 768 bool ParamTraits<cc::SoftwareFrameData>::Read(const Message* m,
 769                                               PickleIterator* iter,
 770                                               param_type* p) {
 771   if (!ReadParam(m, iter, &p->id))
 772     return false;
 773   if (!ReadParam(m, iter, &p->size) ||
 774       !cc::SharedBitmap::VerifySizeInBytes(p->size))
 775     return false;
 776   if (!ReadParam(m, iter, &p->damage_rect))
 777     return false;
 778   if (!ReadParam(m, iter, &p->bitmap_id))
 779     return false;
 780   return true;
 781 }
 782
 783 void ParamTraits<cc::SoftwareFrameData>::Log(const param_type& p,
 784                                              std::string* l) {
 785   l->append("SoftwareFrameData(");
 786   LogParam(p.id, l);
 787   l->append(", ");
 788   LogParam(p.size, l);
 789   l->append(", ");
 790   LogParam(p.damage_rect, l);
 791   l->append(", ");
 792   LogParam(p.bitmap_id, l);
 793   l->append(")");
 794 }
 795
 796 }  // namespace IPC