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// Copyright 2015 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 "ui/compositor/paint_recorder.h"
#include "cc/playback/display_item_list.h"
#include "cc/playback/drawing_display_item.h"
#include "third_party/skia/include/core/SkPictureRecorder.h"
#include "third_party/skia/include/core/SkRefCnt.h"
#include "ui/compositor/paint_cache.h"
#include "ui/compositor/paint_context.h"
#include "ui/gfx/skia_util.h"
namespace ui {
// This class records a reference to the context, the canvas returned
// by its recorder_, and the cache. Thus all 3 of these must remain
// valid for the lifetime of this object.
PaintRecorder::PaintRecorder(const PaintContext& context,
const gfx::Size& recording_size,
PaintCache* cache)
: context_(context),
canvas_(context.recorder_->beginRecording(
gfx::RectToSkRect(gfx::Rect(recording_size))),
context.device_scale_factor_),
cache_(cache),
bounds_in_layer_(context.ToLayerSpaceBounds(recording_size)) {
#if DCHECK_IS_ON()
DCHECK(!context.inside_paint_recorder_);
context.inside_paint_recorder_ = true;
#endif
}
PaintRecorder::PaintRecorder(const PaintContext& context,
const gfx::Size& recording_size)
: PaintRecorder(context, recording_size, nullptr) {
}
PaintRecorder::~PaintRecorder() {
#if DCHECK_IS_ON()
context_.inside_paint_recorder_ = false;
#endif
const auto& item =
context_.list_->CreateAndAppendDrawingItem<cc::DrawingDisplayItem>(
bounds_in_layer_, context_.recorder_->finishRecordingAsPicture());
if (cache_)
cache_->SetCache(item);
}
} // namespace ui
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