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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/compositing_recorder.h"
#include "cc/playback/compositing_display_item.h"
#include "cc/playback/display_item_list.h"
#include "ui/compositor/paint_context.h"
#include "ui/gfx/canvas.h"
namespace ui {
CompositingRecorder::CompositingRecorder(const PaintContext& context,
const gfx::Size& size_in_context,
uint8_t alpha,
bool lcd_text_requires_opaque_layer)
: context_(context),
bounds_in_layer_(context.ToLayerSpaceBounds(size_in_context)),
saved_(alpha < 255) {
if (!saved_)
return;
context_.list_->CreateAndAppendItem<cc::CompositingDisplayItem>(
bounds_in_layer_, alpha, SkXfermode::kSrcOver_Mode,
nullptr /* no bounds */, skia::RefPtr<SkColorFilter>(),
lcd_text_requires_opaque_layer);
}
CompositingRecorder::~CompositingRecorder() {
if (!saved_)
return;
context_.list_->CreateAndAppendItem<cc::EndCompositingDisplayItem>(
bounds_in_layer_);
}
} // namespace ui
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