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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_cache.h"
#include "cc/paint/display_item_list.h"
#include "cc/paint/paint_op_buffer.h"
#include "ui/compositor/paint_context.h"
namespace ui {
PaintCache::PaintCache() {}
PaintCache::~PaintCache() {
}
bool PaintCache::UseCache(const PaintContext& context,
const gfx::Size& size_in_context) {
if (!paint_op_buffer_)
return false;
DCHECK(context.list_);
cc::PaintOpBuffer* buffer = context.list_->StartPaint();
buffer->push<cc::DrawRecordOp>(paint_op_buffer_);
gfx::Rect bounds_in_layer = context.ToLayerSpaceBounds(size_in_context);
context.list_->EndPaintOfUnpaired(bounds_in_layer);
return true;
}
cc::PaintOpBuffer* PaintCache::ResetCache() {
paint_op_buffer_ = sk_make_sp<cc::PaintOpBuffer>();
return paint_op_buffer_.get();
}
void PaintCache::FinalizeCache() {
paint_op_buffer_->ShrinkToFit();
}
} // namespace ui
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