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
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
|
// 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 "skia/public/type_converters.h"
#include <stddef.h>
#include <stdint.h>
#include <string.h>
#include "base/logging.h"
#include "third_party/skia/include/core/SkBitmap.h"
namespace mojo {
namespace {
SkColorType MojoColorTypeToSk(skia::ColorType type) {
switch (type) {
case skia::ColorType::UNKNOWN:
return kUnknown_SkColorType;
case skia::ColorType::ALPHA_8:
return kAlpha_8_SkColorType;
case skia::ColorType::RGB_565:
return kRGB_565_SkColorType;
case skia::ColorType::ARGB_4444:
return kARGB_4444_SkColorType;
case skia::ColorType::RGBA_8888:
return kRGBA_8888_SkColorType;
case skia::ColorType::BGRA_8888:
return kBGRA_8888_SkColorType;
case skia::ColorType::INDEX_8:
return kIndex_8_SkColorType;
case skia::ColorType::GRAY_8:
return kGray_8_SkColorType;
default:
NOTREACHED();
}
return kUnknown_SkColorType;
}
SkAlphaType MojoAlphaTypeToSk(skia::AlphaType type) {
switch (type) {
case skia::AlphaType::UNKNOWN:
return kUnknown_SkAlphaType;
case skia::AlphaType::ALPHA_TYPE_OPAQUE:
return kOpaque_SkAlphaType;
case skia::AlphaType::PREMUL:
return kPremul_SkAlphaType;
case skia::AlphaType::UNPREMUL:
return kUnpremul_SkAlphaType;
default:
NOTREACHED();
}
return kUnknown_SkAlphaType;
}
skia::ColorType SkColorTypeToMojo(SkColorType type) {
switch (type) {
case kUnknown_SkColorType:
return skia::ColorType::UNKNOWN;
case kAlpha_8_SkColorType:
return skia::ColorType::ALPHA_8;
case kRGB_565_SkColorType:
return skia::ColorType::RGB_565;
case kARGB_4444_SkColorType:
return skia::ColorType::ARGB_4444;
case kRGBA_8888_SkColorType:
return skia::ColorType::RGBA_8888;
case kBGRA_8888_SkColorType:
return skia::ColorType::BGRA_8888;
case kIndex_8_SkColorType:
return skia::ColorType::INDEX_8;
case kGray_8_SkColorType:
return skia::ColorType::GRAY_8;
default:
NOTREACHED();
}
return skia::ColorType::UNKNOWN;
}
skia::AlphaType SkAlphaTypeToMojo(SkAlphaType type) {
switch (type) {
case kUnknown_SkAlphaType:
return skia::AlphaType::UNKNOWN;
case kOpaque_SkAlphaType:
return skia::AlphaType::ALPHA_TYPE_OPAQUE;
case kPremul_SkAlphaType:
return skia::AlphaType::PREMUL;
case kUnpremul_SkAlphaType:
return skia::AlphaType::UNPREMUL;
default:
NOTREACHED();
}
return skia::AlphaType::UNKNOWN;
}
} // namespace
SkBitmap TypeConverter<SkBitmap, skia::BitmapPtr>::Convert(
const skia::BitmapPtr& image) {
SkBitmap bitmap;
if (image.is_null())
return bitmap;
if (!bitmap.tryAllocPixels(SkImageInfo::Make(
image->width, image->height, MojoColorTypeToSk(image->color_type),
MojoAlphaTypeToSk(image->alpha_type)))) {
return SkBitmap();
}
if (bitmap.getSize() != image->pixel_data.size() || !bitmap.getPixels()) {
return SkBitmap();
}
memcpy(bitmap.getPixels(), &image->pixel_data[0], bitmap.getSize());
return bitmap;
}
skia::BitmapPtr TypeConverter<skia::BitmapPtr, SkBitmap>::Convert(
const SkBitmap& bitmap) {
if (bitmap.isNull())
return nullptr;
// NOTE: This code doesn't correctly serialize Index8 bitmaps.
const SkImageInfo& info = bitmap.info();
DCHECK_NE(info.colorType(), kIndex_8_SkColorType);
if (info.colorType() == kIndex_8_SkColorType)
return nullptr;
skia::BitmapPtr result = skia::Bitmap::New();
result->color_type = SkColorTypeToMojo(info.colorType());
result->alpha_type = SkAlphaTypeToMojo(info.alphaType());
result->width = info.width();
result->height = info.height();
size_t size = bitmap.getSize();
size_t row_bytes = bitmap.rowBytes();
result->pixel_data = mojo::Array<uint8_t>::New(size);
if (!bitmap.readPixels(info, &result->pixel_data[0], row_bytes, 0, 0))
return nullptr;
return result;
}
} // namespace mojo
|
