cc_messages.cc revision 0f1bc08d4cfcc34181b0b5cbf065c40f687bf740 
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
16namespace IPC {
17
18void ParamTraits<cc::FilterOperation>::Write(
19    Message* m, const param_type& p) {
20  WriteParam(m, p.type());
21  switch (p.type()) {
22    case cc::FilterOperation::GRAYSCALE:
23    case cc::FilterOperation::SEPIA:
24    case cc::FilterOperation::SATURATE:
25    case cc::FilterOperation::HUE_ROTATE:
26    case cc::FilterOperation::INVERT:
27    case cc::FilterOperation::BRIGHTNESS:
28    case cc::FilterOperation::SATURATING_BRIGHTNESS:
29    case cc::FilterOperation::CONTRAST:
30    case cc::FilterOperation::OPACITY:
31    case cc::FilterOperation::BLUR:
32      WriteParam(m, p.amount());
33      break;
34    case cc::FilterOperation::DROP_SHADOW:
35      WriteParam(m, p.drop_shadow_offset());
36      WriteParam(m, p.amount());
37      WriteParam(m, p.drop_shadow_color());
38      break;
39    case cc::FilterOperation::COLOR_MATRIX:
40      for (int i = 0; i < 20; ++i)
41        WriteParam(m, p.matrix()[i]);
42      break;
43    case cc::FilterOperation::ZOOM:
44      WriteParam(m, p.amount());
45      WriteParam(m, p.zoom_inset());
46      break;
47    case cc::FilterOperation::REFERENCE:
48      WriteParam(m, p.image_filter());
49      break;
50  }
51}
52
53bool ParamTraits<cc::FilterOperation>::Read(
54    const Message* m, PickleIterator* iter, param_type* r) {
55  cc::FilterOperation::FilterType type;
56  float amount;
57  gfx::Point drop_shadow_offset;
58  SkColor drop_shadow_color;
59  SkScalar matrix[20];
60  int zoom_inset;
61
62  if (!ReadParam(m, iter, &type))
63    return false;
64  r->set_type(type);
65
66  bool success = false;
67  switch (type) {
68    case cc::FilterOperation::GRAYSCALE:
69    case cc::FilterOperation::SEPIA:
70    case cc::FilterOperation::SATURATE:
71    case cc::FilterOperation::HUE_ROTATE:
72    case cc::FilterOperation::INVERT:
73    case cc::FilterOperation::BRIGHTNESS:
74    case cc::FilterOperation::SATURATING_BRIGHTNESS:
75    case cc::FilterOperation::CONTRAST:
76    case cc::FilterOperation::OPACITY:
77    case cc::FilterOperation::BLUR:
78      if (ReadParam(m, iter, &amount)) {
79        r->set_amount(amount);
80        success = true;
81      }
82      break;
83    case cc::FilterOperation::DROP_SHADOW:
84      if (ReadParam(m, iter, &drop_shadow_offset) &&
85          ReadParam(m, iter, &amount) &&
86          ReadParam(m, iter, &drop_shadow_color)) {
87        r->set_drop_shadow_offset(drop_shadow_offset);
88        r->set_amount(amount);
89        r->set_drop_shadow_color(drop_shadow_color);
90        success = true;
91      }
92      break;
93    case cc::FilterOperation::COLOR_MATRIX: {
94      int i;
95      for (i = 0; i < 20; ++i) {
96        if (!ReadParam(m, iter, &matrix[i]))
97          break;
98      }
99      if (i == 20) {
100        r->set_matrix(matrix);
101        success = true;
102      }
103      break;
104    }
105    case cc::FilterOperation::ZOOM:
106      if (ReadParam(m, iter, &amount) &&
107          ReadParam(m, iter, &zoom_inset) &&
108          amount >= 0.f &&
109          zoom_inset >= 0) {
110        r->set_amount(amount);
111        r->set_zoom_inset(zoom_inset);
112        success = true;
113      }
114      break;
115    case cc::FilterOperation::REFERENCE: {
116      skia::RefPtr<SkImageFilter> filter;
117      if (!ReadParam(m, iter, &filter)) {
118        success = false;
119        break;
120      }
121      r->set_image_filter(filter);
122      success = true;
123      break;
124    }
125  }
126  return success;
127}
128
129void ParamTraits<cc::FilterOperation>::Log(
130    const param_type& p, std::string* l) {
131  l->append("(");
132  LogParam(static_cast<unsigned>(p.type()), l);
133  l->append(", ");
134
135  switch (p.type()) {
136    case cc::FilterOperation::GRAYSCALE:
137    case cc::FilterOperation::SEPIA:
138    case cc::FilterOperation::SATURATE:
139    case cc::FilterOperation::HUE_ROTATE:
140    case cc::FilterOperation::INVERT:
141    case cc::FilterOperation::BRIGHTNESS:
142    case cc::FilterOperation::SATURATING_BRIGHTNESS:
143    case cc::FilterOperation::CONTRAST:
144    case cc::FilterOperation::OPACITY:
145    case cc::FilterOperation::BLUR:
146      LogParam(p.amount(), l);
147      break;
148    case cc::FilterOperation::DROP_SHADOW:
149      LogParam(p.drop_shadow_offset(), l);
150      l->append(", ");
151      LogParam(p.amount(), l);
152      l->append(", ");
153      LogParam(p.drop_shadow_color(), l);
154      break;
155    case cc::FilterOperation::COLOR_MATRIX:
156      for (int i = 0; i < 20; ++i) {
157        if (i)
158          l->append(", ");
159        LogParam(p.matrix()[i], l);
160      }
161      break;
162    case cc::FilterOperation::ZOOM:
163      LogParam(p.amount(), l);
164      l->append(", ");
165      LogParam(p.zoom_inset(), l);
166      break;
167    case cc::FilterOperation::REFERENCE:
168      LogParam(p.image_filter(), l);
169      break;
170  }
171  l->append(")");
172}
173
174void ParamTraits<cc::FilterOperations>::Write(
175    Message* m, const param_type& p) {
176  WriteParam(m, p.size());
177  for (std::size_t i = 0; i < p.size(); ++i) {
178    WriteParam(m, p.at(i));
179  }
180}
181
182bool ParamTraits<cc::FilterOperations>::Read(
183    const Message* m, PickleIterator* iter, param_type* r) {
184  size_t count;
185  if (!ReadParam(m, iter, &count))
186    return false;
187
188  for (std::size_t i = 0; i < count; ++i) {
189    cc::FilterOperation op = cc::FilterOperation::CreateEmptyFilter();
190    if (!ReadParam(m, iter, &op))
191      return false;
192    r->Append(op);
193  }
194  return true;
195}
196
197void ParamTraits<cc::FilterOperations>::Log(
198    const param_type& p, std::string* l) {
199  l->append("(");
200  for (std::size_t i = 0; i < p.size(); ++i) {
201    if (i)
202      l->append(", ");
203    LogParam(p.at(i), l);
204  }
205  l->append(")");
206}
207
208void ParamTraits<skia::RefPtr<SkImageFilter> >::Write(
209    Message* m, const param_type& p) {
210  SkImageFilter* filter = p.get();
211  const CommandLine& command_line = *CommandLine::ForCurrentProcess();
212  if (filter && !command_line.HasSwitch(switches::kDisableFiltersOverIPC)) {
213    skia::RefPtr<SkData> data = skia::AdoptRef(SkSerializeFlattenable(filter));
214    m->WriteData(static_cast<const char*>(data->data()), data->size());
215  } else {
216    m->WriteData(0, 0);
217  }
218}
219
220bool ParamTraits<skia::RefPtr<SkImageFilter> >::Read(
221    const Message* m, PickleIterator* iter, param_type* r) {
222  const char* data = 0;
223  int length = 0;
224  if (!m->ReadData(iter, &data, &length))
225    return false;
226  const CommandLine& command_line = *CommandLine::ForCurrentProcess();
227  if ((length > 0) &&
228      !command_line.HasSwitch(switches::kDisableFiltersOverIPC)) {
229    SkFlattenable* flattenable = SkDeserializeFlattenable(data, length);
230    *r = skia::AdoptRef(static_cast<SkImageFilter*>(flattenable));
231  } else {
232    r->clear();
233  }
234  return true;
235}
236
237void ParamTraits<skia::RefPtr<SkImageFilter> >::Log(
238    const param_type& p, std::string* l) {
239  l->append("(");
240  LogParam(p.get() ? p->countInputs() : 0, l);
241  l->append(")");
242}
243
244void ParamTraits<gfx::Transform>::Write(
245    Message* m, const param_type& p) {
246#ifdef SK_MSCALAR_IS_FLOAT
247  float column_major_data[16];
248  p.matrix().asColMajorf(column_major_data);
249#else
250  double column_major_data[16];
251  p.matrix().asColMajord(column_major_data);
252#endif
253  m->WriteBytes(&column_major_data, sizeof(SkMScalar) * 16);
254}
255
256bool ParamTraits<gfx::Transform>::Read(
257    const Message* m, PickleIterator* iter, param_type* r) {
258  const char* column_major_data;
259  if (!m->ReadBytes(iter, &column_major_data, sizeof(SkMScalar) * 16))
260    return false;
261  r->matrix().setColMajor(
262      reinterpret_cast<const SkMScalar*>(column_major_data));
263  return true;
264}
265
266void ParamTraits<gfx::Transform>::Log(
267    const param_type& p, std::string* l) {
268#ifdef SK_MSCALAR_IS_FLOAT
269  float row_major_data[16];
270  p.matrix().asRowMajorf(row_major_data);
271#else
272  double row_major_data[16];
273  p.matrix().asRowMajord(row_major_data);
274#endif
275  l->append("(");
276  for (int i = 0; i < 16; ++i) {
277    if (i > 0)
278      l->append(", ");
279    LogParam(row_major_data[i], l);
280  }
281  l->append(") ");
282}
283
284void ParamTraits<cc::RenderPass>::Write(
285    Message* m, const param_type& p) {
286  WriteParam(m, p.id);
287  WriteParam(m, p.output_rect);
288  WriteParam(m, p.damage_rect);
289  WriteParam(m, p.transform_to_root_target);
290  WriteParam(m, p.has_transparent_background);
291  WriteParam(m, p.shared_quad_state_list.size());
292  WriteParam(m, p.quad_list.size());
293
294  for (size_t i = 0; i < p.shared_quad_state_list.size(); ++i)
295    WriteParam(m, *p.shared_quad_state_list[i]);
296
297  size_t shared_quad_state_index = 0;
298  for (size_t i = 0; i < p.quad_list.size(); ++i) {
299    const cc::DrawQuad* quad = p.quad_list[i];
300    DCHECK(quad->rect.Contains(quad->visible_rect))
301        << quad->material << " rect: " << quad->rect.ToString()
302        << " visible_rect: " << quad->visible_rect.ToString();
303    DCHECK(quad->opaque_rect.IsEmpty() ||
304           quad->rect.Contains(quad->opaque_rect))
305        << quad->material << " rect: " << quad->rect.ToString()
306        << " opaque_rect: " << quad->opaque_rect.ToString();
307
308    switch (quad->material) {
309      case cc::DrawQuad::CHECKERBOARD:
310        WriteParam(m, *cc::CheckerboardDrawQuad::MaterialCast(quad));
311        break;
312      case cc::DrawQuad::DEBUG_BORDER:
313        WriteParam(m, *cc::DebugBorderDrawQuad::MaterialCast(quad));
314        break;
315      case cc::DrawQuad::IO_SURFACE_CONTENT:
316        WriteParam(m, *cc::IOSurfaceDrawQuad::MaterialCast(quad));
317        break;
318      case cc::DrawQuad::PICTURE_CONTENT:
319        NOTREACHED();
320        break;
321      case cc::DrawQuad::TEXTURE_CONTENT:
322        WriteParam(m, *cc::TextureDrawQuad::MaterialCast(quad));
323        break;
324      case cc::DrawQuad::RENDER_PASS:
325        WriteParam(m, *cc::RenderPassDrawQuad::MaterialCast(quad));
326        break;
327      case cc::DrawQuad::SOLID_COLOR:
328        WriteParam(m, *cc::SolidColorDrawQuad::MaterialCast(quad));
329        break;
330      case cc::DrawQuad::TILED_CONTENT:
331        WriteParam(m, *cc::TileDrawQuad::MaterialCast(quad));
332        break;
333      case cc::DrawQuad::STREAM_VIDEO_CONTENT:
334        WriteParam(m, *cc::StreamVideoDrawQuad::MaterialCast(quad));
335        break;
336      case cc::DrawQuad::YUV_VIDEO_CONTENT:
337        WriteParam(m, *cc::YUVVideoDrawQuad::MaterialCast(quad));
338        break;
339      case cc::DrawQuad::INVALID:
340        break;
341    }
342
343    const cc::ScopedPtrVector<cc::SharedQuadState>& sqs_list =
344        p.shared_quad_state_list;
345
346    // This is an invalid index.
347    size_t bad_index = sqs_list.size();
348
349    // Null shared quad states should not occur.
350    DCHECK(quad->shared_quad_state);
351    if (!quad->shared_quad_state) {
352      WriteParam(m, bad_index);
353      continue;
354    }
355
356    // SharedQuadStates should appear in the order they are used by DrawQuads.
357    // Find the SharedQuadState for this DrawQuad.
358    while (shared_quad_state_index < sqs_list.size() &&
359           quad->shared_quad_state != sqs_list[shared_quad_state_index])
360      ++shared_quad_state_index;
361
362    DCHECK_LT(shared_quad_state_index, sqs_list.size());
363    if (shared_quad_state_index >= sqs_list.size()) {
364      WriteParam(m, bad_index);
365      continue;
366    }
367
368    DCHECK_LT(shared_quad_state_index, p.shared_quad_state_list.size());
369    WriteParam(m, shared_quad_state_index);
370  }
371}
372
373static size_t ReserveSizeForRenderPassWrite(const cc::RenderPass& p) {
374  size_t to_reserve = sizeof(cc::RenderPass);
375
376  to_reserve += p.shared_quad_state_list.size() * sizeof(cc::SharedQuadState);
377
378  // The shared_quad_state_index for each quad.
379  to_reserve += p.quad_list.size() * sizeof(size_t);
380
381  // The largest quad type, verified by a unit test.
382  to_reserve += p.quad_list.size() * sizeof(cc::RenderPassDrawQuad);
383  return to_reserve;
384}
385
386template<typename QuadType>
387static scoped_ptr<cc::DrawQuad> ReadDrawQuad(const Message* m,
388                                             PickleIterator* iter) {
389  scoped_ptr<QuadType> quad = QuadType::Create();
390  if (!ReadParam(m, iter, quad.get()))
391    return scoped_ptr<QuadType>().template PassAs<cc::DrawQuad>();
392  return quad.template PassAs<cc::DrawQuad>();
393}
394
395bool ParamTraits<cc::RenderPass>::Read(
396    const Message* m, PickleIterator* iter, param_type* p) {
397  cc::RenderPass::Id id(-1, -1);
398  gfx::Rect output_rect;
399  gfx::RectF damage_rect;
400  gfx::Transform transform_to_root_target;
401  bool has_transparent_background;
402  size_t shared_quad_state_list_size;
403  size_t quad_list_size;
404
405  if (!ReadParam(m, iter, &id) ||
406      !ReadParam(m, iter, &output_rect) ||
407      !ReadParam(m, iter, &damage_rect) ||
408      !ReadParam(m, iter, &transform_to_root_target) ||
409      !ReadParam(m, iter, &has_transparent_background) ||
410      !ReadParam(m, iter, &shared_quad_state_list_size) ||
411      !ReadParam(m, iter, &quad_list_size))
412    return false;
413
414  p->SetAll(id,
415            output_rect,
416            damage_rect,
417            transform_to_root_target,
418            has_transparent_background);
419
420  for (size_t i = 0; i < shared_quad_state_list_size; ++i) {
421    scoped_ptr<cc::SharedQuadState> state(cc::SharedQuadState::Create());
422    if (!ReadParam(m, iter, state.get()))
423      return false;
424    p->shared_quad_state_list.push_back(state.Pass());
425  }
426
427  size_t last_shared_quad_state_index = 0;
428  for (size_t i = 0; i < quad_list_size; ++i) {
429    cc::DrawQuad::Material material;
430    PickleIterator temp_iter = *iter;
431    if (!ReadParam(m, &temp_iter, &material))
432      return false;
433
434    scoped_ptr<cc::DrawQuad> draw_quad;
435    switch (material) {
436      case cc::DrawQuad::CHECKERBOARD:
437        draw_quad = ReadDrawQuad<cc::CheckerboardDrawQuad>(m, iter);
438        break;
439      case cc::DrawQuad::DEBUG_BORDER:
440        draw_quad = ReadDrawQuad<cc::DebugBorderDrawQuad>(m, iter);
441        break;
442      case cc::DrawQuad::IO_SURFACE_CONTENT:
443        draw_quad = ReadDrawQuad<cc::IOSurfaceDrawQuad>(m, iter);
444        break;
445      case cc::DrawQuad::PICTURE_CONTENT:
446        NOTREACHED();
447        return false;
448      case cc::DrawQuad::TEXTURE_CONTENT:
449        draw_quad = ReadDrawQuad<cc::TextureDrawQuad>(m, iter);
450        break;
451      case cc::DrawQuad::RENDER_PASS:
452        draw_quad = ReadDrawQuad<cc::RenderPassDrawQuad>(m, iter);
453        break;
454      case cc::DrawQuad::SOLID_COLOR:
455        draw_quad = ReadDrawQuad<cc::SolidColorDrawQuad>(m, iter);
456        break;
457      case cc::DrawQuad::TILED_CONTENT:
458        draw_quad = ReadDrawQuad<cc::TileDrawQuad>(m, iter);
459        break;
460      case cc::DrawQuad::STREAM_VIDEO_CONTENT:
461        draw_quad = ReadDrawQuad<cc::StreamVideoDrawQuad>(m, iter);
462        break;
463      case cc::DrawQuad::YUV_VIDEO_CONTENT:
464        draw_quad = ReadDrawQuad<cc::YUVVideoDrawQuad>(m, iter);
465        break;
466      case cc::DrawQuad::INVALID:
467        break;
468    }
469    if (!draw_quad)
470      return false;
471    if (!draw_quad->rect.Contains(draw_quad->visible_rect)) {
472      LOG(ERROR) << "Quad with invalid visible rect " << draw_quad->material
473                 << " rect: " << draw_quad->rect.ToString()
474                 << " visible_rect: " << draw_quad->visible_rect.ToString();
475      return false;
476    }
477    if (!draw_quad->opaque_rect.IsEmpty() &&
478        !draw_quad->rect.Contains(draw_quad->opaque_rect)) {
479      LOG(ERROR) << "Quad with invalid opaque rect " << draw_quad->material
480                 << " rect: " << draw_quad->rect.ToString()
481                 << " opaque_rect: " << draw_quad->opaque_rect.ToString();
482      return false;
483    }
484
485    size_t shared_quad_state_index;
486    if (!ReadParam(m, iter, &shared_quad_state_index) ||
487        shared_quad_state_index >= p->shared_quad_state_list.size())
488      return false;
489    // SharedQuadState indexes should be in ascending order.
490    if (shared_quad_state_index < last_shared_quad_state_index)
491      return false;
492    last_shared_quad_state_index = shared_quad_state_index;
493
494    draw_quad->shared_quad_state =
495        p->shared_quad_state_list[shared_quad_state_index];
496
497    p->quad_list.push_back(draw_quad.Pass());
498  }
499
500  return true;
501}
502
503void 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
517  l->append("[");
518  for (size_t i = 0; i < p.shared_quad_state_list.size(); ++i) {
519    if (i)
520      l->append(", ");
521    LogParam(*p.shared_quad_state_list[i], l);
522  }
523  l->append("], [");
524  for (size_t i = 0; i < p.quad_list.size(); ++i) {
525    if (i)
526      l->append(", ");
527    const cc::DrawQuad* quad = p.quad_list[i];
528    switch (quad->material) {
529      case cc::DrawQuad::CHECKERBOARD:
530        LogParam(*cc::CheckerboardDrawQuad::MaterialCast(quad), l);
531        break;
532      case cc::DrawQuad::DEBUG_BORDER:
533        LogParam(*cc::DebugBorderDrawQuad::MaterialCast(quad), l);
534        break;
535      case cc::DrawQuad::IO_SURFACE_CONTENT:
536        LogParam(*cc::IOSurfaceDrawQuad::MaterialCast(quad), l);
537        break;
538      case cc::DrawQuad::PICTURE_CONTENT:
539        NOTREACHED();
540        break;
541      case cc::DrawQuad::TEXTURE_CONTENT:
542        LogParam(*cc::TextureDrawQuad::MaterialCast(quad), l);
543        break;
544      case cc::DrawQuad::RENDER_PASS:
545        LogParam(*cc::RenderPassDrawQuad::MaterialCast(quad), l);
546        break;
547      case cc::DrawQuad::SOLID_COLOR:
548        LogParam(*cc::SolidColorDrawQuad::MaterialCast(quad), l);
549        break;
550      case cc::DrawQuad::TILED_CONTENT:
551        LogParam(*cc::TileDrawQuad::MaterialCast(quad), l);
552        break;
553      case cc::DrawQuad::STREAM_VIDEO_CONTENT:
554        LogParam(*cc::StreamVideoDrawQuad::MaterialCast(quad), l);
555        break;
556      case cc::DrawQuad::YUV_VIDEO_CONTENT:
557        LogParam(*cc::YUVVideoDrawQuad::MaterialCast(quad), l);
558        break;
559      case cc::DrawQuad::INVALID:
560        break;
561    }
562  }
563  l->append("])");
564}
565
566namespace {
567  enum CompositorFrameType {
568    NO_FRAME,
569    DELEGATED_FRAME,
570    GL_FRAME,
571    SOFTWARE_FRAME,
572  };
573}
574
575void 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    DCHECK(!p.software_frame_data);
581    WriteParam(m, static_cast<int>(DELEGATED_FRAME));
582    WriteParam(m, *p.delegated_frame_data);
583  } else if (p.gl_frame_data) {
584    DCHECK(!p.software_frame_data);
585    WriteParam(m, static_cast<int>(GL_FRAME));
586    WriteParam(m, *p.gl_frame_data);
587  } else if (p.software_frame_data) {
588    WriteParam(m, static_cast<int>(SOFTWARE_FRAME));
589    WriteParam(m, *p.software_frame_data);
590  } else {
591    WriteParam(m, static_cast<int>(NO_FRAME));
592  }
593}
594
595bool ParamTraits<cc::CompositorFrame>::Read(const Message* m,
596                                            PickleIterator* iter,
597                                            param_type* p) {
598  if (!ReadParam(m, iter, &p->metadata))
599    return false;
600
601  int compositor_frame_type;
602  if (!ReadParam(m, iter, &compositor_frame_type))
603    return false;
604
605  switch (compositor_frame_type) {
606    case DELEGATED_FRAME:
607      p->delegated_frame_data.reset(new cc::DelegatedFrameData());
608      if (!ReadParam(m, iter, p->delegated_frame_data.get()))
609        return false;
610      break;
611    case GL_FRAME:
612      p->gl_frame_data.reset(new cc::GLFrameData());
613      if (!ReadParam(m, iter, p->gl_frame_data.get()))
614        return false;
615      break;
616    case SOFTWARE_FRAME:
617      p->software_frame_data.reset(new cc::SoftwareFrameData());
618      if (!ReadParam(m, iter, p->software_frame_data.get()))
619        return false;
620      break;
621    case NO_FRAME:
622      break;
623    default:
624      return false;
625  }
626  return true;
627}
628
629void ParamTraits<cc::CompositorFrame>::Log(const param_type& p,
630                                           std::string* l) {
631  l->append("CompositorFrame(");
632  LogParam(p.metadata, l);
633  l->append(", ");
634  if (p.delegated_frame_data)
635    LogParam(*p.delegated_frame_data, l);
636  else if (p.gl_frame_data)
637    LogParam(*p.gl_frame_data, l);
638  else if (p.software_frame_data)
639    LogParam(*p.software_frame_data, l);
640  l->append(")");
641}
642
643void ParamTraits<cc::CompositorFrameAck>::Write(Message* m,
644                                                const param_type& p) {
645  WriteParam(m, p.resources);
646  WriteParam(m, p.last_software_frame_id);
647  if (p.gl_frame_data) {
648    WriteParam(m, static_cast<int>(GL_FRAME));
649    WriteParam(m, *p.gl_frame_data);
650  } else {
651    WriteParam(m, static_cast<int>(NO_FRAME));
652  }
653}
654
655bool ParamTraits<cc::CompositorFrameAck>::Read(const Message* m,
656                                               PickleIterator* iter,
657                                               param_type* p) {
658  if (!ReadParam(m, iter, &p->resources))
659    return false;
660
661  if (!ReadParam(m, iter, &p->last_software_frame_id))
662    return false;
663
664  int compositor_frame_type;
665  if (!ReadParam(m, iter, &compositor_frame_type))
666    return false;
667
668  switch (compositor_frame_type) {
669    case NO_FRAME:
670      break;
671    case GL_FRAME:
672      p->gl_frame_data.reset(new cc::GLFrameData());
673      if (!ReadParam(m, iter, p->gl_frame_data.get()))
674        return false;
675      break;
676    default:
677      return false;
678  }
679  return true;
680}
681
682void ParamTraits<cc::CompositorFrameAck>::Log(const param_type& p,
683                                              std::string* l) {
684  l->append("CompositorFrameAck(");
685  LogParam(p.resources, l);
686  l->append(", ");
687  LogParam(p.last_software_frame_id, l);
688  l->append(", ");
689  if (p.gl_frame_data)
690    LogParam(*p.gl_frame_data, l);
691  l->append(")");
692}
693
694void ParamTraits<cc::DelegatedFrameData>::Write(Message* m,
695                                                const param_type& p) {
696  DCHECK_NE(0u, p.render_pass_list.size());
697
698  size_t to_reserve = p.resource_list.size() * sizeof(cc::TransferableResource);
699  for (size_t i = 0; i < p.render_pass_list.size(); ++i) {
700    const cc::RenderPass* pass = p.render_pass_list[i];
701    to_reserve += ReserveSizeForRenderPassWrite(*pass);
702  }
703  m->Reserve(to_reserve);
704
705  WriteParam(m, p.resource_list);
706  WriteParam(m, p.render_pass_list.size());
707  for (size_t i = 0; i < p.render_pass_list.size(); ++i)
708    WriteParam(m, *p.render_pass_list[i]);
709}
710
711bool ParamTraits<cc::DelegatedFrameData>::Read(const Message* m,
712                                               PickleIterator* iter,
713                                               param_type* p) {
714  const static size_t kMaxRenderPasses = 10000;
715
716  size_t num_render_passes;
717  if (!ReadParam(m, iter, &p->resource_list) ||
718      !ReadParam(m, iter, &num_render_passes) ||
719      num_render_passes > kMaxRenderPasses || num_render_passes == 0)
720    return false;
721  for (size_t i = 0; i < num_render_passes; ++i) {
722    scoped_ptr<cc::RenderPass> render_pass = cc::RenderPass::Create();
723    if (!ReadParam(m, iter, render_pass.get()))
724      return false;
725    p->render_pass_list.push_back(render_pass.Pass());
726  }
727  return true;
728}
729
730void ParamTraits<cc::DelegatedFrameData>::Log(const param_type& p,
731                                              std::string* l) {
732  l->append("DelegatedFrameData(");
733  LogParam(p.resource_list, l);
734  l->append(", [");
735  for (size_t i = 0; i < p.render_pass_list.size(); ++i) {
736    if (i)
737      l->append(", ");
738    LogParam(*p.render_pass_list[i], l);
739  }
740  l->append("])");
741}
742
743}  // namespace IPC
744