| // 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 */, nullptr /* no color filter */, |
| lcd_text_requires_opaque_layer); |
| } |
| |
| CompositingRecorder::~CompositingRecorder() { |
| if (!saved_) |
| return; |
| |
| context_.list_->CreateAndAppendItem<cc::EndCompositingDisplayItem>( |
| bounds_in_layer_); |
| } |
| |
| } // namespace ui |
