1// Copyright 2014 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 "components/user_manager/user_image/user_image.h"
6
7#include "base/debug/trace_event.h"
8#include "third_party/skia/include/core/SkBitmap.h"
9#include "ui/gfx/codec/jpeg_codec.h"
10
11namespace user_manager {
12
13namespace {
14
15// Default quality for encoding user images.
16const int kDefaultEncodingQuality = 90;
17
18bool EncodeImageSkia(const gfx::ImageSkia& image,
19                     std::vector<unsigned char>* output) {
20  TRACE_EVENT2("oobe", "EncodeImageSkia",
21               "width", image.width(), "height", image.height());
22  if (image.isNull())
23    return false;
24  const SkBitmap& bitmap = *image.bitmap();
25  SkAutoLockPixels lock_image(bitmap);
26  return gfx::JPEGCodec::Encode(
27      reinterpret_cast<unsigned char*>(bitmap.getAddr32(0, 0)),
28      gfx::JPEGCodec::FORMAT_SkBitmap,
29      bitmap.width(),
30      bitmap.height(),
31      bitmap.width() * bitmap.bytesPerPixel(),
32      kDefaultEncodingQuality, output);
33}
34
35}  // namespace
36
37// static
38UserImage UserImage::CreateAndEncode(const gfx::ImageSkia& image) {
39  RawImage raw_image;
40  if (EncodeImageSkia(image, &raw_image)) {
41    UserImage result(image, raw_image);
42    result.MarkAsSafe();
43    return result;
44  }
45  return UserImage(image);
46}
47
48UserImage::UserImage()
49    : has_raw_image_(false),
50      is_safe_format_(false) {
51}
52
53UserImage::UserImage(const gfx::ImageSkia& image)
54    : image_(image),
55      has_raw_image_(false),
56      is_safe_format_(false) {
57}
58
59UserImage::UserImage(const gfx::ImageSkia& image,
60                     const RawImage& raw_image)
61    : image_(image),
62      has_raw_image_(false),
63      is_safe_format_(false) {
64  has_raw_image_ = true;
65  raw_image_ = raw_image;
66}
67
68UserImage::~UserImage() {}
69
70void UserImage::DiscardRawImage() {
71  RawImage().swap(raw_image_);  // Clear |raw_image_|.
72}
73
74void UserImage::MarkAsSafe() {
75  is_safe_format_ = true;
76}
77
78}  // namespace user_manager
79