cc/quads/render_pass.cc

   1 // Copyright 2011 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 "cc/quads/render_pass.h"
   6
   7 #include <algorithm>
   8
   9 #include "base/numerics/safe_conversions.h"
  10 #include "base/trace_event/trace_event_argument.h"
  11 #include "base/values.h"
  12 #include "cc/base/math_util.h"
  13 #include "cc/debug/traced_value.h"
  14 #include "cc/output/copy_output_request.h"
  15 #include "cc/quads/checkerboard_draw_quad.h"
  16 #include "cc/quads/debug_border_draw_quad.h"
  17 #include "cc/quads/draw_quad.h"
  18 #include "cc/quads/io_surface_draw_quad.h"
  19 #include "cc/quads/largest_draw_quad.h"
  20 #include "cc/quads/picture_draw_quad.h"
  21 #include "cc/quads/render_pass_draw_quad.h"
  22 #include "cc/quads/shared_quad_state.h"
  23 #include "cc/quads/solid_color_draw_quad.h"
  24 #include "cc/quads/stream_video_draw_quad.h"
  25 #include "cc/quads/surface_draw_quad.h"
  26 #include "cc/quads/texture_draw_quad.h"
  27 #include "cc/quads/tile_draw_quad.h"
  28 #include "cc/quads/yuv_video_draw_quad.h"
  29
  30 namespace {
  31 const size_t kDefaultNumSharedQuadStatesToReserve = 32;
  32 const size_t kDefaultNumQuadsToReserve = 128;
  33 }
  34
  35 namespace cc {
  36
  37 QuadList::QuadList(size_t default_size_to_reserve)
  38     : ListContainer<DrawQuad>(LargestDrawQuadSize(), default_size_to_reserve) {
  39 }
  40
  41 scoped_ptr<RenderPass> RenderPass::Create() {
  42   return make_scoped_ptr(new RenderPass());
  43 }
  44
  45 scoped_ptr<RenderPass> RenderPass::Create(size_t num_layers) {
  46   return make_scoped_ptr(new RenderPass(num_layers));
  47 }
  48
  49 scoped_ptr<RenderPass> RenderPass::Create(size_t shared_quad_state_list_size,
  50                                           size_t quad_list_size) {
  51   return make_scoped_ptr(
  52       new RenderPass(shared_quad_state_list_size, quad_list_size));
  53 }
  54
  55 RenderPass::RenderPass()
  56     : has_transparent_background(true),
  57       quad_list(kDefaultNumQuadsToReserve),
  58       shared_quad_state_list(sizeof(SharedQuadState),
  59                              kDefaultNumSharedQuadStatesToReserve) {
  60 }
  61
  62 // Each layer usually produces one shared quad state, so the number of layers
  63 // is a good hint for what to reserve here.
  64 RenderPass::RenderPass(size_t num_layers)
  65     : has_transparent_background(true),
  66       quad_list(kDefaultNumQuadsToReserve),
  67       shared_quad_state_list(sizeof(SharedQuadState), num_layers) {
  68 }
  69
  70 RenderPass::RenderPass(size_t shared_quad_state_list_size,
  71                        size_t quad_list_size)
  72     : has_transparent_background(true),
  73       quad_list(quad_list_size),
  74       shared_quad_state_list(sizeof(SharedQuadState),
  75                              shared_quad_state_list_size) {
  76 }
  77
  78 RenderPass::~RenderPass() {
  79   TRACE_EVENT_OBJECT_DELETED_WITH_ID(
  80       TRACE_DISABLED_BY_DEFAULT("cc.debug.quads"),
  81       "cc::RenderPass", id.AsTracingId());
  82 }
  83
  84 scoped_ptr<RenderPass> RenderPass::Copy(RenderPassId new_id) const {
  85   scoped_ptr<RenderPass> copy_pass(
  86       Create(shared_quad_state_list.size(), quad_list.size()));
  87   copy_pass->SetAll(new_id,
  88                     output_rect,
  89                     damage_rect,
  90                     transform_to_root_target,
  91                     has_transparent_background);
  92   return copy_pass.Pass();
  93 }
  94
  95 // static
  96 void RenderPass::CopyAll(const ScopedPtrVector<RenderPass>& in,
  97                          ScopedPtrVector<RenderPass>* out) {
  98   for (size_t i = 0; i < in.size(); ++i) {
  99     RenderPass* source = in[i];
 100
 101     // Since we can't copy these, it's wrong to use CopyAll in a situation where
 102     // you may have copy_requests present.
 103     DCHECK_EQ(source->copy_requests.size(), 0u);
 104
 105     scoped_ptr<RenderPass> copy_pass(Create(
 106         source->shared_quad_state_list.size(), source->quad_list.size()));
 107     copy_pass->SetAll(source->id,
 108                       source->output_rect,
 109                       source->damage_rect,
 110                       source->transform_to_root_target,
 111                       source->has_transparent_background);
 112     for (const auto& shared_quad_state : source->shared_quad_state_list) {
 113       SharedQuadState* copy_shared_quad_state =
 114           copy_pass->CreateAndAppendSharedQuadState();
 115       copy_shared_quad_state->CopyFrom(shared_quad_state);
 116     }
 117     SharedQuadStateList::Iterator sqs_iter =
 118         source->shared_quad_state_list.begin();
 119     SharedQuadStateList::Iterator copy_sqs_iter =
 120         copy_pass->shared_quad_state_list.begin();
 121     for (const auto& quad : source->quad_list) {
 122       while (quad->shared_quad_state != *sqs_iter) {
 123         ++sqs_iter;
 124         ++copy_sqs_iter;
 125         DCHECK(sqs_iter != source->shared_quad_state_list.end());
 126       }
 127       DCHECK(quad->shared_quad_state == *sqs_iter);
 128
 129       SharedQuadState* copy_shared_quad_state = *copy_sqs_iter;
 130
 131       if (quad->material == DrawQuad::RENDER_PASS) {
 132         const RenderPassDrawQuad* pass_quad =
 133             RenderPassDrawQuad::MaterialCast(quad);
 134         copy_pass->CopyFromAndAppendRenderPassDrawQuad(
 135             pass_quad, copy_shared_quad_state, pass_quad->render_pass_id);
 136       } else {
 137         copy_pass->CopyFromAndAppendDrawQuad(quad, copy_shared_quad_state);
 138       }
 139     }
 140     out->push_back(copy_pass.Pass());
 141   }
 142 }
 143
 144 void RenderPass::SetNew(RenderPassId id,
 145                         const gfx::Rect& output_rect,
 146                         const gfx::Rect& damage_rect,
 147                         const gfx::Transform& transform_to_root_target) {
 148   DCHECK_GT(id.layer_id, 0);
 149   DCHECK(damage_rect.IsEmpty() || output_rect.Contains(damage_rect))
 150       << "damage_rect: " << damage_rect.ToString()
 151       << " output_rect: " << output_rect.ToString();
 152
 153   this->id = id;
 154   this->output_rect = output_rect;
 155   this->damage_rect = damage_rect;
 156   this->transform_to_root_target = transform_to_root_target;
 157
 158   DCHECK(quad_list.empty());
 159   DCHECK(shared_quad_state_list.empty());
 160 }
 161
 162 void RenderPass::SetAll(RenderPassId id,
 163                         const gfx::Rect& output_rect,
 164                         const gfx::Rect& damage_rect,
 165                         const gfx::Transform& transform_to_root_target,
 166                         bool has_transparent_background) {
 167   DCHECK_GT(id.layer_id, 0);
 168
 169   this->id = id;
 170   this->output_rect = output_rect;
 171   this->damage_rect = damage_rect;
 172   this->transform_to_root_target = transform_to_root_target;
 173   this->has_transparent_background = has_transparent_background;
 174
 175   DCHECK(quad_list.empty());
 176   DCHECK(shared_quad_state_list.empty());
 177 }
 178
 179 void RenderPass::AsValueInto(base::trace_event::TracedValue* value) const {
 180   MathUtil::AddToTracedValue("output_rect", output_rect, value);
 181   MathUtil::AddToTracedValue("damage_rect", damage_rect, value);
 182
 183   value->SetBoolean("has_transparent_background", has_transparent_background);
 184   value->SetInteger("copy_requests",
 185                     base::saturated_cast<int>(copy_requests.size()));
 186
 187   value->BeginArray("shared_quad_state_list");
 188   for (const auto& shared_quad_state : shared_quad_state_list) {
 189     value->BeginDictionary();
 190     shared_quad_state->AsValueInto(value);
 191     value->EndDictionary();
 192   }
 193   value->EndArray();
 194
 195   value->BeginArray("quad_list");
 196   for (const auto& quad : quad_list) {
 197     value->BeginDictionary();
 198     quad->AsValueInto(value);
 199     value->EndDictionary();
 200   }
 201   value->EndArray();
 202
 203   TracedValue::MakeDictIntoImplicitSnapshotWithCategory(
 204       TRACE_DISABLED_BY_DEFAULT("cc.debug.quads"),
 205       value,
 206       "cc::RenderPass",
 207       id.AsTracingId());
 208 }
 209
 210 SharedQuadState* RenderPass::CreateAndAppendSharedQuadState() {
 211   return shared_quad_state_list.AllocateAndConstruct<SharedQuadState>();
 212 }
 213
 214 RenderPassDrawQuad* RenderPass::CopyFromAndAppendRenderPassDrawQuad(
 215     const RenderPassDrawQuad* quad,
 216     const SharedQuadState* shared_quad_state,
 217     RenderPassId render_pass_id) {
 218   RenderPassDrawQuad* copy_quad =
 219       CopyFromAndAppendTypedDrawQuad<RenderPassDrawQuad>(quad);
 220   copy_quad->shared_quad_state = shared_quad_state;
 221   copy_quad->render_pass_id = render_pass_id;
 222   return copy_quad;
 223 }
 224
 225 DrawQuad* RenderPass::CopyFromAndAppendDrawQuad(
 226     const DrawQuad* quad,
 227     const SharedQuadState* shared_quad_state) {
 228   switch (quad->material) {
 229     case DrawQuad::CHECKERBOARD:
 230       CopyFromAndAppendTypedDrawQuad<CheckerboardDrawQuad>(quad);
 231       break;
 232     case DrawQuad::DEBUG_BORDER:
 233       CopyFromAndAppendTypedDrawQuad<DebugBorderDrawQuad>(quad);
 234       break;
 235     case DrawQuad::IO_SURFACE_CONTENT:
 236       CopyFromAndAppendTypedDrawQuad<IOSurfaceDrawQuad>(quad);
 237       break;
 238     case DrawQuad::PICTURE_CONTENT:
 239       CopyFromAndAppendTypedDrawQuad<PictureDrawQuad>(quad);
 240       break;
 241     case DrawQuad::TEXTURE_CONTENT:
 242       CopyFromAndAppendTypedDrawQuad<TextureDrawQuad>(quad);
 243       break;
 244     case DrawQuad::SOLID_COLOR:
 245       CopyFromAndAppendTypedDrawQuad<SolidColorDrawQuad>(quad);
 246       break;
 247     case DrawQuad::TILED_CONTENT:
 248       CopyFromAndAppendTypedDrawQuad<TileDrawQuad>(quad);
 249       break;
 250     case DrawQuad::STREAM_VIDEO_CONTENT:
 251       CopyFromAndAppendTypedDrawQuad<StreamVideoDrawQuad>(quad);
 252       break;
 253     case DrawQuad::SURFACE_CONTENT:
 254       CopyFromAndAppendTypedDrawQuad<SurfaceDrawQuad>(quad);
 255       break;
 256     case DrawQuad::YUV_VIDEO_CONTENT:
 257       CopyFromAndAppendTypedDrawQuad<YUVVideoDrawQuad>(quad);
 258       break;
 259     // RenderPass quads need to use specific CopyFrom function.
 260     case DrawQuad::RENDER_PASS:
 261     case DrawQuad::INVALID:
 262       LOG(FATAL) << "Invalid DrawQuad material " << quad->material;
 263       break;
 264   }
 265   quad_list.back()->shared_quad_state = shared_quad_state;
 266   return quad_list.back();
 267 }
 268
 269 }  // namespace cc