1
2 /*
3 * Copyright 2010 The Android Open Source Project
4 *
5 * Use of this source code is governed by a BSD-style license that can be
6 * found in the LICENSE file.
7 */
8
9
10 #include "Test.h"
11 #include "SkData.h"
12 #include "SkPDFTypes.h"
13 #include "SkPDFFont.h"
14 #include "SkStream.h"
15
stream_equals(const SkDynamicMemoryWStream & stream,size_t offset,const char * buffer,size_t len)16 static bool stream_equals(const SkDynamicMemoryWStream& stream, size_t offset,
17 const char* buffer, size_t len) {
18 SkAutoDataUnref data(stream.copyToData());
19 if (offset + len > data->size()) {
20 return false;
21 }
22 if (len != strlen(buffer)) {
23 return false;
24 }
25 return memcmp(data->bytes() + offset, buffer, len) == 0;
26 }
27
28 void append_cmap_sections(const SkTDArray<SkUnichar>& glyphToUnicode,
29 const SkPDFGlyphSet* subset,
30 SkDynamicMemoryWStream* cmap);
31
TestToUnicode(skiatest::Reporter * reporter)32 static void TestToUnicode(skiatest::Reporter* reporter) {
33 SkTDArray<SkUnichar> glyphToUnicode;
34 SkTDArray<uint16_t> glyphsInSubset;
35 SkPDFGlyphSet subset;
36
37 glyphToUnicode.push(0); // 0
38 glyphToUnicode.push(0); // 1
39 glyphToUnicode.push(0); // 2
40 glyphsInSubset.push(3);
41 glyphToUnicode.push(0x20); // 3
42 glyphsInSubset.push(4);
43 glyphToUnicode.push(0x25); // 4
44 glyphsInSubset.push(5);
45 glyphToUnicode.push(0x27); // 5
46 glyphsInSubset.push(6);
47 glyphToUnicode.push(0x28); // 6
48 glyphsInSubset.push(7);
49 glyphToUnicode.push(0x29); // 7
50 glyphsInSubset.push(8);
51 glyphToUnicode.push(0x2F); // 8
52 glyphsInSubset.push(9);
53 glyphToUnicode.push(0x33); // 9
54 glyphToUnicode.push(0); // 10
55 glyphsInSubset.push(11);
56 glyphToUnicode.push(0x35); // 11
57 glyphsInSubset.push(12);
58 glyphToUnicode.push(0x36); // 12
59 for (uint16_t i = 13; i < 0xFE; ++i) {
60 glyphToUnicode.push(0); // Zero from index 0x9 to 0xFD
61 }
62 glyphsInSubset.push(0xFE);
63 glyphToUnicode.push(0x1010);
64 glyphsInSubset.push(0xFF);
65 glyphToUnicode.push(0x1011);
66 glyphsInSubset.push(0x100);
67 glyphToUnicode.push(0x1012);
68 glyphsInSubset.push(0x101);
69 glyphToUnicode.push(0x1013);
70
71 SkDynamicMemoryWStream buffer;
72 subset.set(glyphsInSubset.begin(), glyphsInSubset.count());
73 append_cmap_sections(glyphToUnicode, &subset, &buffer);
74
75 char expectedResult[] =
76 "4 beginbfchar\n\
77 <0003> <0020>\n\
78 <0004> <0025>\n\
79 <0008> <002F>\n\
80 <0009> <0033>\n\
81 endbfchar\n\
82 4 beginbfrange\n\
83 <0005> <0007> <0027>\n\
84 <000B> <000C> <0035>\n\
85 <00FE> <00FF> <1010>\n\
86 <0100> <0101> <1012>\n\
87 endbfrange\n";
88
89 REPORTER_ASSERT(reporter, stream_equals(buffer, 0, expectedResult,
90 buffer.getOffset()));
91
92 glyphToUnicode.reset();
93 glyphsInSubset.reset();
94 SkPDFGlyphSet subset2;
95
96 // Test mapping:
97 // I n s t a l
98 // Glyph id 2c 51 56 57 44 4f
99 // Unicode 49 6e 73 74 61 6c
100 for (size_t i = 0; i < 100; ++i) {
101 glyphToUnicode.push(i + 29);
102 }
103
104 glyphsInSubset.push(0x2C);
105 glyphsInSubset.push(0x44);
106 glyphsInSubset.push(0x4F);
107 glyphsInSubset.push(0x51);
108 glyphsInSubset.push(0x56);
109 glyphsInSubset.push(0x57);
110
111 SkDynamicMemoryWStream buffer2;
112 subset2.set(glyphsInSubset.begin(), glyphsInSubset.count());
113 append_cmap_sections(glyphToUnicode, &subset2, &buffer2);
114
115 char expectedResult2[] =
116 "4 beginbfchar\n\
117 <002C> <0049>\n\
118 <0044> <0061>\n\
119 <004F> <006C>\n\
120 <0051> <006E>\n\
121 endbfchar\n\
122 1 beginbfrange\n\
123 <0056> <0057> <0073>\n\
124 endbfrange\n";
125
126 REPORTER_ASSERT(reporter, stream_equals(buffer2, 0, expectedResult2,
127 buffer2.getOffset()));
128 }
129
130 #include "TestClassDef.h"
131 DEFINE_TESTCLASS("ToUnicode", ToUnicodeTestClass, TestToUnicode)
132