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// Copyright 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "cc/resources/tile.h"
#include <algorithm>
#include "base/debug/trace_event_argument.h"
#include "cc/base/math_util.h"
#include "cc/debug/traced_value.h"
#include "cc/resources/tile_manager.h"
#include "third_party/khronos/GLES2/gl2.h"
namespace cc {
Tile::Id Tile::s_next_id_ = 0;
Tile::Tile(TileManager* tile_manager,
PicturePileImpl* picture_pile,
const gfx::Size& tile_size,
const gfx::Rect& content_rect,
const gfx::Rect& opaque_rect,
float contents_scale,
int layer_id,
int source_frame_number,
int flags)
: RefCountedManaged<Tile>(tile_manager),
tile_manager_(tile_manager),
size_(tile_size),
content_rect_(content_rect),
contents_scale_(contents_scale),
opaque_rect_(opaque_rect),
layer_id_(layer_id),
source_frame_number_(source_frame_number),
flags_(flags),
id_(s_next_id_++) {
set_picture_pile(picture_pile);
for (int i = 0; i < NUM_TREES; i++)
is_occluded_[i] = false;
}
Tile::~Tile() {
TRACE_EVENT_OBJECT_DELETED_WITH_ID(
TRACE_DISABLED_BY_DEFAULT("cc.debug"),
"cc::Tile", this);
}
void Tile::SetPriority(WhichTree tree, const TilePriority& priority) {
if (priority == priority_[tree])
return;
priority_[tree] = priority;
tile_manager_->DidChangeTilePriority(this);
}
void Tile::MarkRequiredForActivation() {
if (priority_[PENDING_TREE].required_for_activation)
return;
priority_[PENDING_TREE].required_for_activation = true;
tile_manager_->DidChangeTilePriority(this);
}
void Tile::AsValueInto(base::debug::TracedValue* res) const {
TracedValue::MakeDictIntoImplicitSnapshotWithCategory(
TRACE_DISABLED_BY_DEFAULT("cc.debug"), res, "cc::Tile", this);
TracedValue::SetIDRef(picture_pile_.get(), res, "picture_pile");
res->SetDouble("contents_scale", contents_scale_);
res->BeginArray("content_rect");
MathUtil::AddToTracedValue(content_rect_, res);
res->EndArray();
res->SetInteger("layer_id", layer_id_);
res->BeginDictionary("active_priority");
priority_[ACTIVE_TREE].AsValueInto(res);
res->EndDictionary();
res->BeginDictionary("pending_priority");
priority_[PENDING_TREE].AsValueInto(res);
res->EndDictionary();
res->BeginDictionary("managed_state");
managed_state_.AsValueInto(res);
res->EndDictionary();
res->SetBoolean("use_picture_analysis", use_picture_analysis());
res->SetInteger("gpu_memory_usage", GPUMemoryUsageInBytes());
}
size_t Tile::GPUMemoryUsageInBytes() const {
size_t total_size = 0;
for (int mode = 0; mode < NUM_RASTER_MODES; ++mode)
total_size += managed_state_.tile_versions[mode].GPUMemoryUsageInBytes();
return total_size;
}
RasterMode Tile::DetermineRasterModeForTree(WhichTree tree) const {
return DetermineRasterModeForResolution(priority(tree).resolution);
}
RasterMode Tile::DetermineOverallRasterMode() const {
return DetermineRasterModeForResolution(managed_state_.resolution);
}
RasterMode Tile::DetermineRasterModeForResolution(
TileResolution resolution) const {
RasterMode current_mode = managed_state_.raster_mode;
RasterMode raster_mode = resolution == LOW_RESOLUTION
? LOW_QUALITY_RASTER_MODE
: HIGH_QUALITY_RASTER_MODE;
return std::min(raster_mode, current_mode);
}
bool Tile::HasRasterTask() const {
for (int mode = 0; mode < NUM_RASTER_MODES; ++mode) {
if (managed_state_.tile_versions[mode].raster_task_)
return true;
}
return false;
}
} // namespace cc
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