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
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
|
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*/
#include <cppunit/TestAssert.h>
#include <cppunit/TestFixture.h>
#include <cppunit/extensions/HelperMacros.h>
#include <bitmap/ScanlineTools.hxx>
namespace
{
class ScanlineToolsTest : public CppUnit::TestFixture
{
void ScanlineTransformer_32_ARGB();
void ScanlineTransformer_24_BGR();
void ScanlineTransformer_8bit_Palette();
void ScanlineTransformer_4bit_Palette();
void ScanlineTransformer_1bit_Palette();
CPPUNIT_TEST_SUITE(ScanlineToolsTest);
CPPUNIT_TEST(ScanlineTransformer_32_ARGB);
CPPUNIT_TEST(ScanlineTransformer_24_BGR);
CPPUNIT_TEST(ScanlineTransformer_8bit_Palette);
CPPUNIT_TEST(ScanlineTransformer_4bit_Palette);
CPPUNIT_TEST(ScanlineTransformer_1bit_Palette);
CPPUNIT_TEST_SUITE_END();
};
void ScanlineToolsTest::ScanlineTransformer_32_ARGB()
{
BitmapPalette aPalette;
std::unique_ptr<vcl::bitmap::ScanlineTransformer> pScanlineTransformer
= vcl::bitmap::getScanlineTransformer(32, aPalette);
std::vector<sal_uInt8> aScanLine(5 * 4, 0); // 5 * 4 BytesPerPixel
pScanlineTransformer->startLine(aScanLine.data());
std::vector<Color> aColors{
Color(0, 10, 250, 120), Color(50, 30, 230, 110), Color(100, 50, 210, 100),
Color(150, 70, 190, 90), Color(200, 90, 170, 80),
};
for (Color const& aColor : aColors)
{
pScanlineTransformer->writePixel(aColor);
}
std::vector<sal_uInt8> aExpectedBytes{ 0, 10, 250, 120, 50, 30, 230, 110, 100, 50,
210, 100, 150, 70, 190, 90, 200, 90, 170, 80 };
for (size_t i = 0; i < aScanLine.size(); ++i)
{
CPPUNIT_ASSERT_EQUAL(int(aExpectedBytes[i]), int(aScanLine[i]));
}
}
void ScanlineToolsTest::ScanlineTransformer_24_BGR()
{
BitmapPalette aPalette;
std::unique_ptr<vcl::bitmap::ScanlineTransformer> pScanlineTransformer
= vcl::bitmap::getScanlineTransformer(24, aPalette);
std::vector<sal_uInt8> aScanLine(5 * 3, 0); // 5 * 3 BytesPerPixel
pScanlineTransformer->startLine(aScanLine.data());
std::vector<Color> aColors{
Color(0, 10, 250, 120), Color(50, 30, 230, 110), Color(100, 50, 210, 100),
Color(150, 70, 190, 90), Color(200, 90, 170, 80),
};
for (Color const& aColor : aColors)
{
pScanlineTransformer->writePixel(aColor);
}
std::vector<sal_uInt8> aExpectedBytes{ 120, 250, 10, 110, 230, 30, 100, 210,
50, 90, 190, 70, 80, 170, 90 };
for (size_t i = 0; i < aScanLine.size(); ++i)
{
CPPUNIT_ASSERT_EQUAL(int(aExpectedBytes[i]), int(aScanLine[i]));
}
}
void ScanlineToolsTest::ScanlineTransformer_8bit_Palette()
{
std::vector<Color> aColors{
Color(0, 10, 250, 120), Color(50, 30, 230, 110), Color(100, 50, 210, 100),
Color(150, 70, 190, 90), Color(200, 90, 170, 80),
};
BitmapPalette aPalette(256);
for (size_t i = 0; i < aColors.size(); ++i)
aPalette[i] = aColors[i];
std::unique_ptr<vcl::bitmap::ScanlineTransformer> pScanlineTransformer
= vcl::bitmap::getScanlineTransformer(8, aPalette);
std::vector<sal_uInt8> aScanLine(5, 0); // 5 * 1 BytesPerPixel
pScanlineTransformer->startLine(aScanLine.data());
for (Color const& aColor : aColors)
{
pScanlineTransformer->writePixel(aColor);
}
std::vector<sal_uInt8> aExpectedBytes{ 0, 1, 2, 3, 4 };
for (size_t i = 0; i < aScanLine.size(); ++i)
{
CPPUNIT_ASSERT_EQUAL(int(aExpectedBytes[i]), int(aScanLine[i]));
}
pScanlineTransformer->startLine(aScanLine.data());
for (size_t i = 0; i < aColors.size(); ++i)
{
Color aColor = pScanlineTransformer->readPixel();
CPPUNIT_ASSERT_EQUAL(aColors[i], aColor);
}
}
void ScanlineToolsTest::ScanlineTransformer_4bit_Palette()
{
std::vector<Color> aColors{
Color(10, 250, 120), Color(30, 230, 110), Color(50, 210, 100),
Color(70, 190, 90), Color(90, 170, 80), Color(110, 150, 70),
};
BitmapPalette aPalette(16);
for (size_t i = 0; i < aColors.size(); ++i)
{
aPalette[i] = aColors[i];
}
std::unique_ptr<vcl::bitmap::ScanlineTransformer> pScanlineTransformer
= vcl::bitmap::getScanlineTransformer(4, aPalette);
std::vector<sal_uInt8> aScanLine(3, 0); // 6 * 0.5 BytesPerPixel
pScanlineTransformer->startLine(aScanLine.data());
for (Color const& aColor : aColors)
{
pScanlineTransformer->writePixel(aColor);
}
std::vector<sal_uInt8> aExpectedBytes{ 0x01, 0x23, 0x45 };
for (size_t i = 0; i < aScanLine.size(); ++i)
{
CPPUNIT_ASSERT_EQUAL(int(aExpectedBytes[i]), int(aScanLine[i]));
}
pScanlineTransformer->startLine(aScanLine.data());
for (size_t i = 0; i < aColors.size(); ++i)
{
Color aColor = pScanlineTransformer->readPixel();
CPPUNIT_ASSERT_EQUAL(aColors[i], aColor);
}
}
void ScanlineToolsTest::ScanlineTransformer_1bit_Palette()
{
std::vector<Color> aColors{
Color(10, 250, 120), Color(30, 230, 110), Color(50, 210, 100), Color(70, 190, 90),
Color(90, 170, 80), Color(110, 150, 70), Color(130, 130, 60), Color(150, 110, 50),
Color(170, 90, 40), Color(190, 70, 30), Color(210, 50, 20), Color(230, 30, 10),
Color(250, 10, 0),
};
BitmapPalette aPalette(2);
aPalette[0] = Color(10, 250, 120);
aPalette[1] = Color(110, 150, 70);
std::unique_ptr<vcl::bitmap::ScanlineTransformer> pScanlineTransformer
= vcl::bitmap::getScanlineTransformer(1, aPalette);
std::vector<sal_uInt8> aScanLine(2, 0); // 13 * 1/8 BytesPerPixel
pScanlineTransformer->startLine(aScanLine.data());
for (Color const& aColor : aColors)
{
pScanlineTransformer->writePixel(aColor);
}
std::vector<sal_uInt8> aExpectedBytes{
// We expect 3x index 0 and 10x index 1 => 000 111111111
0x1f, // 0001 1111
0xf8 // 1111 1000
};
for (size_t i = 0; i < aScanLine.size(); ++i)
{
CPPUNIT_ASSERT_EQUAL(int(aExpectedBytes[i]), int(aScanLine[i]));
}
pScanlineTransformer->startLine(aScanLine.data());
std::vector<Color> aColorsExpected{
Color(10, 250, 120), Color(10, 250, 120), Color(10, 250, 120), Color(110, 150, 70),
Color(110, 150, 70), Color(110, 150, 70), Color(110, 150, 70), Color(110, 150, 70),
Color(110, 150, 70), Color(110, 150, 70), Color(110, 150, 70), Color(110, 150, 70),
Color(110, 150, 70),
};
for (size_t i = 0; i < aColors.size(); ++i)
{
Color aColor = pScanlineTransformer->readPixel();
CPPUNIT_ASSERT_EQUAL(aColorsExpected[i], aColor);
}
}
} // namespace
CPPUNIT_TEST_SUITE_REGISTRATION(ScanlineToolsTest);
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|
