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// Copyright 2011 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/skpicture_content_layer_updater.h"
#include "base/debug/trace_event.h"
#include "cc/debug/rendering_stats.h"
#include "cc/resources/layer_painter.h"
#include "cc/resources/prioritized_resource.h"
#include "cc/resources/resource_update_queue.h"
#include "third_party/skia/include/core/SkCanvas.h"
namespace cc {
SkPictureContentLayerUpdater::Resource::Resource(
SkPictureContentLayerUpdater* updater,
scoped_ptr<PrioritizedResource> texture)
: LayerUpdater::Resource(texture.Pass()), updater_(updater) {}
SkPictureContentLayerUpdater::Resource::~Resource() {}
void SkPictureContentLayerUpdater::Resource::Update(ResourceUpdateQueue* queue,
gfx::Rect source_rect,
gfx::Vector2d dest_offset,
bool partial_update,
RenderingStats*) {
updater_->UpdateTexture(
queue, texture(), source_rect, dest_offset, partial_update);
}
SkPictureContentLayerUpdater::SkPictureContentLayerUpdater(
scoped_ptr<LayerPainter> painter,
RenderingStatsInstrumentation* stats_instrumentation)
: ContentLayerUpdater(painter.Pass(), stats_instrumentation),
layer_is_opaque_(false) {}
SkPictureContentLayerUpdater::~SkPictureContentLayerUpdater() {}
scoped_refptr<SkPictureContentLayerUpdater>
SkPictureContentLayerUpdater::Create(
scoped_ptr<LayerPainter> painter,
RenderingStatsInstrumentation* stats_instrumentation) {
return make_scoped_refptr(
new SkPictureContentLayerUpdater(painter.Pass(), stats_instrumentation));
}
scoped_ptr<LayerUpdater::Resource> SkPictureContentLayerUpdater::CreateResource(
PrioritizedResourceManager* manager) {
return scoped_ptr<LayerUpdater::Resource>(
new Resource(this, PrioritizedResource::Create(manager)));
}
void SkPictureContentLayerUpdater::PrepareToUpdate(
gfx::Rect content_rect,
gfx::Size,
float contents_width_scale,
float contents_height_scale,
gfx::Rect* resulting_opaque_rect,
RenderingStats* stats) {
SkCanvas* canvas =
picture_.beginRecording(content_rect.width(), content_rect.height());
base::TimeTicks record_start_time;
if (stats)
record_start_time = base::TimeTicks::HighResNow();
PaintContents(canvas,
content_rect,
contents_width_scale,
contents_height_scale,
resulting_opaque_rect,
stats);
if (stats) {
stats->total_record_time +=
base::TimeTicks::HighResNow() - record_start_time;
stats->total_pixels_recorded +=
content_rect.width() * content_rect.height();
}
picture_.endRecording();
}
void SkPictureContentLayerUpdater::DrawPicture(SkCanvas* canvas) {
TRACE_EVENT0("cc", "SkPictureContentLayerUpdater::DrawPicture");
canvas->drawPicture(picture_);
}
void SkPictureContentLayerUpdater::UpdateTexture(ResourceUpdateQueue* queue,
PrioritizedResource* texture,
gfx::Rect source_rect,
gfx::Vector2d dest_offset,
bool partial_update) {
ResourceUpdate upload = ResourceUpdate::CreateFromPicture(
texture, &picture_, content_rect(), source_rect, dest_offset);
if (partial_update)
queue->AppendPartialUpload(upload);
else
queue->AppendFullUpload(upload);
}
void SkPictureContentLayerUpdater::SetOpaque(bool opaque) {
layer_is_opaque_ = opaque;
}
} // namespace cc
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