1 /* 2 * Copyright 2010 The Android Open Source Project 3 * 4 * Use of this source code is governed by a BSD-style license that can be 5 * found in the LICENSE file. 6 */ 7 8 #include "SkData.h" 9 #include "SkPDFFont.h" 10 #include "SkPDFTypes.h" 11 #include "SkStream.h" 12 #include "Test.h" 13 14 static bool stream_equals(const SkDynamicMemoryWStream& stream, size_t offset, 15 const char* buffer, size_t len) { 16 SkAutoDataUnref data(stream.copyToData()); 17 if (offset + len > data->size()) { 18 return false; 19 } 20 if (len != strlen(buffer)) { 21 return false; 22 } 23 return memcmp(data->bytes() + offset, buffer, len) == 0; 24 } 25 26 void append_cmap_sections(const SkTDArray<SkUnichar>& glyphToUnicode, 27 const SkPDFGlyphSet* subset, 28 SkDynamicMemoryWStream* cmap, 29 bool multiByteGlyphs, 30 uint16_t firstGlypthID, 31 uint16_t lastGlypthID); 32 33 DEF_TEST(ToUnicode, reporter) { 34 SkTDArray<SkUnichar> glyphToUnicode; 35 SkTDArray<uint16_t> glyphsInSubset; 36 SkPDFGlyphSet subset; 37 38 glyphToUnicode.push(0); // 0 39 glyphToUnicode.push(0); // 1 40 glyphToUnicode.push(0); // 2 41 glyphsInSubset.push(3); 42 glyphToUnicode.push(0x20); // 3 43 glyphsInSubset.push(4); 44 glyphToUnicode.push(0x25); // 4 45 glyphsInSubset.push(5); 46 glyphToUnicode.push(0x27); // 5 47 glyphsInSubset.push(6); 48 glyphToUnicode.push(0x28); // 6 49 glyphsInSubset.push(7); 50 glyphToUnicode.push(0x29); // 7 51 glyphsInSubset.push(8); 52 glyphToUnicode.push(0x2F); // 8 53 glyphsInSubset.push(9); 54 glyphToUnicode.push(0x33); // 9 55 glyphToUnicode.push(0); // 10 56 glyphsInSubset.push(11); 57 glyphToUnicode.push(0x35); // 11 58 glyphsInSubset.push(12); 59 glyphToUnicode.push(0x36); // 12 60 glyphsInSubset.push(13); 61 glyphToUnicode.push(0x37); // 13 62 for (uint16_t i = 14; i < 0xFE; ++i) { 63 glyphToUnicode.push(0); // Zero from index 0x9 to 0xFD 64 } 65 glyphsInSubset.push(0xFE); 66 glyphToUnicode.push(0x1010); 67 glyphsInSubset.push(0xFF); 68 glyphToUnicode.push(0x1011); 69 glyphsInSubset.push(0x100); 70 glyphToUnicode.push(0x1012); 71 glyphsInSubset.push(0x101); 72 glyphToUnicode.push(0x1013); 73 74 SkDynamicMemoryWStream buffer; 75 subset.set(glyphsInSubset.begin(), glyphsInSubset.count()); 76 append_cmap_sections(glyphToUnicode, &subset, &buffer, true, 0, 0xFFFF); 77 78 char expectedResult[] = 79 "4 beginbfchar\n\ 80 <0003> <0020>\n\ 81 <0004> <0025>\n\ 82 <0008> <002F>\n\ 83 <0009> <0033>\n\ 84 endbfchar\n\ 85 4 beginbfrange\n\ 86 <0005> <0007> <0027>\n\ 87 <000B> <000D> <0035>\n\ 88 <00FE> <00FF> <1010>\n\ 89 <0100> <0101> <1012>\n\ 90 endbfrange\n"; 91 92 REPORTER_ASSERT(reporter, stream_equals(buffer, 0, expectedResult, 93 buffer.getOffset())); 94 95 // Remove characters and ranges. 96 buffer.reset(); 97 98 append_cmap_sections(glyphToUnicode, &subset, &buffer, true, 8, 0x00FF); 99 100 char expectedResultChop1[] = 101 "2 beginbfchar\n\ 102 <0008> <002F>\n\ 103 <0009> <0033>\n\ 104 endbfchar\n\ 105 2 beginbfrange\n\ 106 <000B> <000D> <0035>\n\ 107 <00FE> <00FF> <1010>\n\ 108 endbfrange\n"; 109 110 REPORTER_ASSERT(reporter, stream_equals(buffer, 0, expectedResultChop1, 111 buffer.getOffset())); 112 113 // Remove characters from range to downdrade it to one char. 114 buffer.reset(); 115 116 append_cmap_sections(glyphToUnicode, &subset, &buffer, true, 0x00D, 0x00FE); 117 118 char expectedResultChop2[] = 119 "2 beginbfchar\n\ 120 <000D> <0037>\n\ 121 <00FE> <1010>\n\ 122 endbfchar\n"; 123 124 REPORTER_ASSERT(reporter, stream_equals(buffer, 0, expectedResultChop2, 125 buffer.getOffset())); 126 127 buffer.reset(); 128 129 append_cmap_sections(glyphToUnicode, nullptr, &buffer, false, 0xFC, 0x110); 130 131 char expectedResultSingleBytes[] = 132 "2 beginbfchar\n\ 133 <0001> <0000>\n\ 134 <0002> <0000>\n\ 135 endbfchar\n\ 136 1 beginbfrange\n\ 137 <0003> <0006> <1010>\n\ 138 endbfrange\n"; 139 140 REPORTER_ASSERT(reporter, stream_equals(buffer, 0, 141 expectedResultSingleBytes, 142 buffer.getOffset())); 143 144 glyphToUnicode.reset(); 145 glyphsInSubset.reset(); 146 SkPDFGlyphSet subset2; 147 148 // Test mapping: 149 // I n s t a l 150 // Glyph id 2c 51 56 57 44 4f 151 // Unicode 49 6e 73 74 61 6c 152 for (SkUnichar i = 0; i < 100; ++i) { 153 glyphToUnicode.push(i + 29); 154 } 155 156 glyphsInSubset.push(0x2C); 157 glyphsInSubset.push(0x44); 158 glyphsInSubset.push(0x4F); 159 glyphsInSubset.push(0x51); 160 glyphsInSubset.push(0x56); 161 glyphsInSubset.push(0x57); 162 163 SkDynamicMemoryWStream buffer2; 164 subset2.set(glyphsInSubset.begin(), glyphsInSubset.count()); 165 append_cmap_sections(glyphToUnicode, &subset2, &buffer2, true, 0, 0xffff); 166 167 char expectedResult2[] = 168 "4 beginbfchar\n\ 169 <002C> <0049>\n\ 170 <0044> <0061>\n\ 171 <004F> <006C>\n\ 172 <0051> <006E>\n\ 173 endbfchar\n\ 174 1 beginbfrange\n\ 175 <0056> <0057> <0073>\n\ 176 endbfrange\n"; 177 178 REPORTER_ASSERT(reporter, stream_equals(buffer2, 0, expectedResult2, 179 buffer2.getOffset())); 180 } 181
