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// Copyright 2010 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/layers/content_layer.h"
#include "base/auto_reset.h"
#include "base/metrics/histogram.h"
#include "base/time/time.h"
#include "cc/layers/content_layer_client.h"
#include "cc/resources/bitmap_content_layer_updater.h"
#include "cc/resources/bitmap_skpicture_content_layer_updater.h"
#include "cc/resources/layer_painter.h"
#include "cc/trees/layer_tree_host.h"
#include "third_party/skia/include/core/SkPictureRecorder.h"
namespace cc {
ContentLayerPainter::ContentLayerPainter(ContentLayerClient* client)
: client_(client) {}
scoped_ptr<ContentLayerPainter> ContentLayerPainter::Create(
ContentLayerClient* client) {
return make_scoped_ptr(new ContentLayerPainter(client));
}
void ContentLayerPainter::Paint(SkCanvas* canvas,
const gfx::Rect& content_rect) {
client_->PaintContents(canvas, content_rect,
ContentLayerClient::PAINTING_BEHAVIOR_NORMAL);
}
scoped_refptr<ContentLayer> ContentLayer::Create(ContentLayerClient* client) {
return make_scoped_refptr(new ContentLayer(client));
}
ContentLayer::ContentLayer(ContentLayerClient* client)
: TiledLayer(), client_(client) {
}
ContentLayer::~ContentLayer() {}
void ContentLayer::ClearClient() {
client_ = nullptr;
UpdateDrawsContent(HasDrawableContent());
}
bool ContentLayer::HasDrawableContent() const {
return client_ && TiledLayer::HasDrawableContent();
}
void ContentLayer::SetLayerTreeHost(LayerTreeHost* host) {
TiledLayer::SetLayerTreeHost(host);
if (!updater_.get())
return;
}
void ContentLayer::SetTexturePriorities(
const PriorityCalculator& priority_calc) {
// Update the tile data before creating all the layer's tiles.
UpdateTileSizeAndTilingOption();
TiledLayer::SetTexturePriorities(priority_calc);
}
bool ContentLayer::Update(ResourceUpdateQueue* queue,
const OcclusionTracker<Layer>* occlusion) {
{
base::AutoReset<bool> ignore_set_needs_commit(&ignore_set_needs_commit_,
true);
CreateUpdaterIfNeeded();
}
bool updated = TiledLayer::Update(queue, occlusion);
return updated;
}
bool ContentLayer::NeedMoreUpdates() {
return NeedsIdlePaint();
}
LayerUpdater* ContentLayer::Updater() const {
return updater_.get();
}
void ContentLayer::CreateUpdaterIfNeeded() {
if (updater_.get())
return;
scoped_ptr<LayerPainter> painter = ContentLayerPainter::Create(client_);
if (layer_tree_host()->settings().per_tile_painting_enabled) {
updater_ = BitmapSkPictureContentLayerUpdater::Create(
painter.Pass(),
rendering_stats_instrumentation(),
id());
} else {
updater_ = BitmapContentLayerUpdater::Create(
painter.Pass(),
id());
}
updater_->SetOpaque(contents_opaque());
if (client_)
updater_->SetFillsBoundsCompletely(client_->FillsBoundsCompletely());
updater_->SetBackgroundColor(background_color());
SetTextureFormat(
layer_tree_host()->GetRendererCapabilities().best_texture_format);
}
void ContentLayer::SetContentsOpaque(bool opaque) {
Layer::SetContentsOpaque(opaque);
if (updater_.get())
updater_->SetOpaque(opaque);
}
skia::RefPtr<SkPicture> ContentLayer::GetPicture() const {
if (!DrawsContent())
return skia::RefPtr<SkPicture>();
int width = bounds().width();
int height = bounds().height();
SkPictureRecorder recorder;
SkCanvas* canvas = recorder.beginRecording(width, height, nullptr, 0);
client_->PaintContents(canvas, gfx::Rect(width, height),
ContentLayerClient::PAINTING_BEHAVIOR_NORMAL);
skia::RefPtr<SkPicture> picture =
skia::AdoptRef(recorder.endRecordingAsPicture());
return picture;
}
void ContentLayer::OnOutputSurfaceCreated() {
SetTextureFormat(
layer_tree_host()->GetRendererCapabilities().best_texture_format);
TiledLayer::OnOutputSurfaceCreated();
}
} // namespace cc
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