cc/output/software_output_device.cc


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43

// Copyright 2013 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 "cc/output/software_output_device.h"

#include "base/logging.h"
#include "third_party/skia/include/core/SkCanvas.h"
#include "ui/gfx/vsync_provider.h"

namespace cc {

SoftwareOutputDevice::SoftwareOutputDevice() : scale_factor_(1.f) {
}

SoftwareOutputDevice::~SoftwareOutputDevice() {}

void SoftwareOutputDevice::Resize(const gfx::Size& viewport_pixel_size,
                                  float scale_factor) {
  scale_factor_ = scale_factor;

  if (viewport_pixel_size_ == viewport_pixel_size)
    return;

  SkImageInfo info = SkImageInfo::MakeN32(viewport_pixel_size.width(),
                                          viewport_pixel_size.height(),
                                          kOpaque_SkAlphaType);
  viewport_pixel_size_ = viewport_pixel_size;
  surface_ = skia::AdoptRef(SkSurface::NewRaster(info));
}

SkCanvas* SoftwareOutputDevice::BeginPaint(const gfx::Rect& damage_rect) {
  damage_rect_ = damage_rect;
  return surface_ ? surface_->getCanvas() : nullptr;
}

void SoftwareOutputDevice::EndPaint() {}

gfx::VSyncProvider* SoftwareOutputDevice::GetVSyncProvider() {
  return vsync_provider_.get();
}

}  // namespace cc