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
|
/*
* Copyright 2015 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "Resources.h"
#include "SkBitmap.h"
#include "SkCodec.h"
#include "SkMD5.h"
#include "Test.h"
static SkStreamAsset* resource(const char path[]) {
SkString fullPath = GetResourcePath(path);
return SkStream::NewFromFile(fullPath.c_str());
}
static void md5(const SkBitmap& bm, SkMD5::Digest* digest) {
SkAutoLockPixels autoLockPixels(bm);
SkASSERT(bm.getPixels());
SkMD5 md5;
size_t rowLen = bm.info().bytesPerPixel() * bm.width();
for (int y = 0; y < bm.height(); ++y) {
md5.update(static_cast<uint8_t*>(bm.getAddr(0, y)), rowLen);
}
md5.finish(*digest);
}
static void check(skiatest::Reporter* r,
const char path[],
SkISize size,
bool supportsScanlineDecoding) {
SkAutoTDelete<SkStream> stream(resource(path));
if (!stream) {
SkDebugf("Missing resource '%s'\n", path);
return;
}
SkAutoTDelete<SkCodec> codec(SkCodec::NewFromStream(stream.detach()));
if (!codec) {
ERRORF(r, "Unable to decode '%s'", path);
return;
}
SkImageInfo info = codec->getInfo();
REPORTER_ASSERT(r, info.dimensions() == size);
SkBitmap bm;
bm.allocPixels(info);
SkAutoLockPixels autoLockPixels(bm);
SkImageGenerator::Result result =
codec->getPixels(info, bm.getPixels(), bm.rowBytes(), NULL, NULL, NULL);
REPORTER_ASSERT(r, result == SkImageGenerator::kSuccess);
SkMD5::Digest digest1, digest2;
md5(bm, &digest1);
bm.eraseColor(SK_ColorYELLOW);
result =
codec->getPixels(info, bm.getPixels(), bm.rowBytes(), NULL, NULL, NULL);
REPORTER_ASSERT(r, result == SkImageGenerator::kSuccess);
// verify that re-decoding gives the same result.
md5(bm, &digest2);
REPORTER_ASSERT(r, digest1 == digest2);
SkScanlineDecoder* scanlineDecoder = codec->getScanlineDecoder(info);
if (supportsScanlineDecoding) {
bm.eraseColor(SK_ColorYELLOW);
REPORTER_ASSERT(r, scanlineDecoder);
for (int y = 0; y < info.height(); y++) {
result = scanlineDecoder->getScanlines(bm.getAddr(0, y), 1, 0);
REPORTER_ASSERT(r, result == SkImageGenerator::kSuccess);
}
// verify that scanline decoding gives the same result.
SkMD5::Digest digest3;
md5(bm, &digest3);
REPORTER_ASSERT(r, digest3 == digest1);
} else {
REPORTER_ASSERT(r, !scanlineDecoder);
}
}
DEF_TEST(Codec, r) {
// WBMP
check(r, "mandrill.wbmp", SkISize::Make(512, 512), false);
// BMP
check(r, "randPixels.bmp", SkISize::Make(8, 8), false);
// ICO
check(r, "color_wheel.ico", SkISize::Make(128, 128), false);
// PNG
check(r, "arrow.png", SkISize::Make(187, 312), true);
check(r, "baby_tux.png", SkISize::Make(240, 246), true);
check(r, "color_wheel.png", SkISize::Make(128, 128), true);
check(r, "half-transparent-white-pixel.png", SkISize::Make(1, 1), true);
check(r, "mandrill_128.png", SkISize::Make(128, 128), true);
check(r, "mandrill_16.png", SkISize::Make(16, 16), true);
check(r, "mandrill_256.png", SkISize::Make(256, 256), true);
check(r, "mandrill_32.png", SkISize::Make(32, 32), true);
check(r, "mandrill_512.png", SkISize::Make(512, 512), true);
check(r, "mandrill_64.png", SkISize::Make(64, 64), true);
check(r, "plane.png", SkISize::Make(250, 126), true);
check(r, "randPixels.png", SkISize::Make(8, 8), true);
check(r, "yellow_rose.png", SkISize::Make(400, 301), true);
}
|
