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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/trace_event/trace_event.h"
#include "cc/debug/rendering_stats_instrumentation.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"
#include "third_party/skia/include/core/SkPictureRecorder.h"
namespace cc {
SkPictureContentLayerUpdater::SkPictureContentLayerUpdater(
scoped_ptr<LayerPainter> painter,
int layer_id)
: ContentLayerUpdater(painter.Pass(), layer_id) {
}
SkPictureContentLayerUpdater::~SkPictureContentLayerUpdater() {}
void SkPictureContentLayerUpdater::PrepareToUpdate(
const gfx::Size& content_size,
const gfx::Rect& paint_rect,
const gfx::Size& tile_size,
float contents_width_scale,
float contents_height_scale) {
SkPictureRecorder recorder;
SkCanvas* canvas =
recorder.beginRecording(paint_rect.width(), paint_rect.height(), NULL, 0);
DCHECK_EQ(paint_rect.width(), canvas->getBaseLayerSize().width());
DCHECK_EQ(paint_rect.height(), canvas->getBaseLayerSize().height());
PaintContents(canvas,
content_size,
paint_rect,
contents_width_scale,
contents_height_scale);
picture_ = skia::AdoptRef(recorder.endRecordingAsPicture());
}
void SkPictureContentLayerUpdater::DrawPicture(SkCanvas* canvas) {
TRACE_EVENT0("cc", "SkPictureContentLayerUpdater::DrawPicture");
if (picture_)
canvas->drawPicture(picture_.get());
}
} // namespace cc
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