1// Copyright 2013 The Chromium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5#include "cc/output/software_output_device.h"
6
7#include "base/logging.h"
8#include "cc/output/software_frame_data.h"
9#include "third_party/skia/include/core/SkBitmapDevice.h"
10#include "third_party/skia/include/core/SkCanvas.h"
11#include "ui/gfx/skia_util.h"
12#include "ui/gfx/vsync_provider.h"
13
14namespace cc {
15
16SoftwareOutputDevice::SoftwareOutputDevice() {}
17
18SoftwareOutputDevice::~SoftwareOutputDevice() {}
19
20void SoftwareOutputDevice::Resize(gfx::Size viewport_size) {
21  if (viewport_size_ == viewport_size)
22    return;
23
24  viewport_size_ = viewport_size;
25  device_ = skia::AdoptRef(new SkBitmapDevice(SkBitmap::kARGB_8888_Config,
26      viewport_size.width(), viewport_size.height(), true));
27  canvas_ = skia::AdoptRef(new SkCanvas(device_.get()));
28}
29
30SkCanvas* SoftwareOutputDevice::BeginPaint(gfx::Rect damage_rect) {
31  DCHECK(device_);
32  damage_rect_ = damage_rect;
33  return canvas_.get();
34}
35
36void SoftwareOutputDevice::EndPaint(SoftwareFrameData* frame_data) {
37  DCHECK(frame_data);
38  frame_data->id = 0;
39  frame_data->size = viewport_size_;
40  frame_data->damage_rect = damage_rect_;
41  frame_data->handle = base::SharedMemory::NULLHandle();
42}
43
44void SoftwareOutputDevice::CopyToBitmap(
45    gfx::Rect rect, SkBitmap* output) {
46  DCHECK(device_);
47  const SkBitmap& bitmap = device_->accessBitmap(false);
48  bitmap.extractSubset(output, gfx::RectToSkIRect(rect));
49}
50
51void SoftwareOutputDevice::Scroll(
52    gfx::Vector2d delta, gfx::Rect clip_rect) {
53  NOTIMPLEMENTED();
54}
55
56void SoftwareOutputDevice::ReclaimSoftwareFrame(unsigned id) {
57  NOTIMPLEMENTED();
58}
59
60gfx::VSyncProvider* SoftwareOutputDevice::GetVSyncProvider() {
61  return vsync_provider_.get();
62}
63
64}  // namespace cc
65