blob: 7b9131d3fe4c4cea137d172dcde93ccdc7598ce5 [file] [log] [blame]
vandebo@chromium.org04c643b2011-08-08 22:33:05 +00001/*
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
Mike Kleinc0bd9f92019-04-23 12:05:21 -05008#include "tests/Test.h"
Hal Canary43fb7a02016-12-30 13:09:03 -05009
10#ifdef SK_SUPPORT_PDF
11
Mike Kleinc0bd9f92019-04-23 12:05:21 -050012#include "include/core/SkData.h"
13#include "include/core/SkStream.h"
14#include "include/private/SkTo.h"
15#include "src/pdf/SkPDFMakeToUnicodeCmap.h"
16#include "src/utils/SkBitSet.h"
vandebo@chromium.org04c643b2011-08-08 22:33:05 +000017
Hal Canary31355982018-10-19 12:21:41 -040018static constexpr SkGlyphID kMaximumGlyphIndex = UINT16_MAX;
halcanary530032a2016-08-18 14:22:52 -070019
vandebo@chromium.org04c643b2011-08-08 22:33:05 +000020static bool stream_equals(const SkDynamicMemoryWStream& stream, size_t offset,
vandebo@chromium.org9ad35992012-01-03 18:35:39 +000021 const char* buffer, size_t len) {
vandebo@chromium.org9ad35992012-01-03 18:35:39 +000022 if (len != strlen(buffer)) {
23 return false;
24 }
Mike Reed5adaf8b2016-12-15 13:02:33 -050025
26 const size_t streamSize = stream.bytesWritten();
27
28 if (offset + len > streamSize) {
29 return false;
30 }
31
32 SkAutoTMalloc<char> data(streamSize);
33 stream.copyTo(data.get());
34 return memcmp(data.get() + offset, buffer, len) == 0;
vandebo@chromium.org04c643b2011-08-08 22:33:05 +000035}
36
halcanary57f744e2016-09-09 11:41:59 -070037DEF_TEST(SkPDF_ToUnicode, reporter) {
vandebo@chromium.org04c643b2011-08-08 22:33:05 +000038 SkTDArray<SkUnichar> glyphToUnicode;
39 SkTDArray<uint16_t> glyphsInSubset;
Hal Canary31355982018-10-19 12:21:41 -040040 SkPDFGlyphUse subset(1, kMaximumGlyphIndex);
vandebo@chromium.org04c643b2011-08-08 22:33:05 +000041
Mike Reed5edcd312018-08-08 11:23:41 -040042 glyphToUnicode.push_back(0); // 0
43 glyphToUnicode.push_back(0); // 1
44 glyphToUnicode.push_back(0); // 2
45 glyphsInSubset.push_back(3);
46 glyphToUnicode.push_back(0x20); // 3
47 glyphsInSubset.push_back(4);
48 glyphToUnicode.push_back(0x25); // 4
49 glyphsInSubset.push_back(5);
50 glyphToUnicode.push_back(0x27); // 5
51 glyphsInSubset.push_back(6);
52 glyphToUnicode.push_back(0x28); // 6
53 glyphsInSubset.push_back(7);
54 glyphToUnicode.push_back(0x29); // 7
55 glyphsInSubset.push_back(8);
56 glyphToUnicode.push_back(0x2F); // 8
57 glyphsInSubset.push_back(9);
58 glyphToUnicode.push_back(0x33); // 9
59 glyphToUnicode.push_back(0); // 10
60 glyphsInSubset.push_back(11);
61 glyphToUnicode.push_back(0x35); // 11
62 glyphsInSubset.push_back(12);
63 glyphToUnicode.push_back(0x36); // 12
64 glyphsInSubset.push_back(13);
65 glyphToUnicode.push_back(0x37); // 13
edisonn@google.com26d2e042013-09-18 19:29:08 +000066 for (uint16_t i = 14; i < 0xFE; ++i) {
Mike Reed5edcd312018-08-08 11:23:41 -040067 glyphToUnicode.push_back(0); // Zero from index 0x9 to 0xFD
vandebo@chromium.org04c643b2011-08-08 22:33:05 +000068 }
Mike Reed5edcd312018-08-08 11:23:41 -040069 glyphsInSubset.push_back(0xFE);
70 glyphToUnicode.push_back(0x1010);
71 glyphsInSubset.push_back(0xFF);
72 glyphToUnicode.push_back(0x1011);
73 glyphsInSubset.push_back(0x100);
74 glyphToUnicode.push_back(0x1012);
75 glyphsInSubset.push_back(0x101);
76 glyphToUnicode.push_back(0x1013);
vandebo@chromium.org04c643b2011-08-08 22:33:05 +000077
Hal Canary46cc3da2018-05-09 11:50:34 -040078 SkGlyphID lastGlyphID = SkToU16(glyphToUnicode.count() - 1);
79
vandebo@chromium.org04c643b2011-08-08 22:33:05 +000080 SkDynamicMemoryWStream buffer;
Hal Canary52514d52018-10-19 10:08:42 -040081 for (uint16_t v : glyphsInSubset) {
82 subset.set(v);
83 }
Hal Canary46cc3da2018-05-09 11:50:34 -040084 SkPDFAppendCmapSections(&glyphToUnicode[0], &subset, &buffer, true, 0,
85 SkTMin<SkGlyphID>(0xFFFF, lastGlyphID));
vandebo@chromium.org04c643b2011-08-08 22:33:05 +000086
87 char expectedResult[] =
88"4 beginbfchar\n\
89<0003> <0020>\n\
90<0004> <0025>\n\
91<0008> <002F>\n\
92<0009> <0033>\n\
93endbfchar\n\
944 beginbfrange\n\
95<0005> <0007> <0027>\n\
edisonn@google.com26d2e042013-09-18 19:29:08 +000096<000B> <000D> <0035>\n\
vandebo@chromium.org04c643b2011-08-08 22:33:05 +000097<00FE> <00FF> <1010>\n\
98<0100> <0101> <1012>\n\
99endbfrange\n";
100
101 REPORTER_ASSERT(reporter, stream_equals(buffer, 0, expectedResult,
Ben Wagner884300d2016-12-16 16:51:41 +0000102 buffer.bytesWritten()));
vandebo@chromium.org9ad35992012-01-03 18:35:39 +0000103
edisonn@google.com26d2e042013-09-18 19:29:08 +0000104 // Remove characters and ranges.
105 buffer.reset();
106
Hal Canary46cc3da2018-05-09 11:50:34 -0400107 SkPDFAppendCmapSections(&glyphToUnicode[0], &subset, &buffer, true, 8,
108 SkTMin<SkGlyphID>(0x00FF, lastGlyphID));
edisonn@google.com26d2e042013-09-18 19:29:08 +0000109
110 char expectedResultChop1[] =
111"2 beginbfchar\n\
112<0008> <002F>\n\
113<0009> <0033>\n\
114endbfchar\n\
1152 beginbfrange\n\
116<000B> <000D> <0035>\n\
117<00FE> <00FF> <1010>\n\
118endbfrange\n";
119
120 REPORTER_ASSERT(reporter, stream_equals(buffer, 0, expectedResultChop1,
Ben Wagner884300d2016-12-16 16:51:41 +0000121 buffer.bytesWritten()));
edisonn@google.com26d2e042013-09-18 19:29:08 +0000122
123 // Remove characters from range to downdrade it to one char.
124 buffer.reset();
125
Hal Canary46cc3da2018-05-09 11:50:34 -0400126 SkPDFAppendCmapSections(&glyphToUnicode[0], &subset, &buffer, true, 0x00D,
127 SkTMin<SkGlyphID>(0x00FE, lastGlyphID));
edisonn@google.com26d2e042013-09-18 19:29:08 +0000128
129 char expectedResultChop2[] =
130"2 beginbfchar\n\
131<000D> <0037>\n\
132<00FE> <1010>\n\
133endbfchar\n";
134
135 REPORTER_ASSERT(reporter, stream_equals(buffer, 0, expectedResultChop2,
Ben Wagner884300d2016-12-16 16:51:41 +0000136 buffer.bytesWritten()));
edisonn@google.com26d2e042013-09-18 19:29:08 +0000137
commit-bot@chromium.org1236d8e2013-12-11 18:47:11 +0000138 buffer.reset();
139
Hal Canary46cc3da2018-05-09 11:50:34 -0400140 SkPDFAppendCmapSections(&glyphToUnicode[0], nullptr, &buffer, false, 0xFC,
141 SkTMin<SkGlyphID>(0x110, lastGlyphID));
commit-bot@chromium.org1236d8e2013-12-11 18:47:11 +0000142
143 char expectedResultSingleBytes[] =
144"2 beginbfchar\n\
halcanary3d01c622016-08-31 12:52:35 -0700145<01> <0000>\n\
146<02> <0000>\n\
commit-bot@chromium.org1236d8e2013-12-11 18:47:11 +0000147endbfchar\n\
1481 beginbfrange\n\
halcanary3d01c622016-08-31 12:52:35 -0700149<03> <06> <1010>\n\
commit-bot@chromium.org1236d8e2013-12-11 18:47:11 +0000150endbfrange\n";
151
152 REPORTER_ASSERT(reporter, stream_equals(buffer, 0,
153 expectedResultSingleBytes,
Ben Wagner884300d2016-12-16 16:51:41 +0000154 buffer.bytesWritten()));
commit-bot@chromium.org1236d8e2013-12-11 18:47:11 +0000155
vandebo@chromium.org9ad35992012-01-03 18:35:39 +0000156 glyphToUnicode.reset();
157 glyphsInSubset.reset();
Hal Canary31355982018-10-19 12:21:41 -0400158 SkPDFGlyphUse subset2(1, kMaximumGlyphIndex);
vandebo@chromium.org9ad35992012-01-03 18:35:39 +0000159
160 // Test mapping:
161 // I n s t a l
162 // Glyph id 2c 51 56 57 44 4f
163 // Unicode 49 6e 73 74 61 6c
bsalomon98806072014-12-12 15:11:17 -0800164 for (SkUnichar i = 0; i < 100; ++i) {
Mike Reed5edcd312018-08-08 11:23:41 -0400165 glyphToUnicode.push_back(i + 29);
vandebo@chromium.org9ad35992012-01-03 18:35:39 +0000166 }
Hal Canary46cc3da2018-05-09 11:50:34 -0400167 lastGlyphID = SkToU16(glyphToUnicode.count() - 1);
vandebo@chromium.org9ad35992012-01-03 18:35:39 +0000168
Mike Reed5edcd312018-08-08 11:23:41 -0400169 glyphsInSubset.push_back(0x2C);
170 glyphsInSubset.push_back(0x44);
171 glyphsInSubset.push_back(0x4F);
172 glyphsInSubset.push_back(0x51);
173 glyphsInSubset.push_back(0x56);
174 glyphsInSubset.push_back(0x57);
vandebo@chromium.org9ad35992012-01-03 18:35:39 +0000175
176 SkDynamicMemoryWStream buffer2;
Hal Canary52514d52018-10-19 10:08:42 -0400177 for (uint16_t v : glyphsInSubset) {
178 subset2.set(v);
179 }
Hal Canary46cc3da2018-05-09 11:50:34 -0400180 SkPDFAppendCmapSections(&glyphToUnicode[0], &subset2, &buffer2, true, 0,
181 SkTMin<SkGlyphID>(0xFFFF, lastGlyphID));
vandebo@chromium.org9ad35992012-01-03 18:35:39 +0000182
183 char expectedResult2[] =
184"4 beginbfchar\n\
185<002C> <0049>\n\
186<0044> <0061>\n\
187<004F> <006C>\n\
188<0051> <006E>\n\
189endbfchar\n\
1901 beginbfrange\n\
191<0056> <0057> <0073>\n\
192endbfrange\n";
193
194 REPORTER_ASSERT(reporter, stream_equals(buffer2, 0, expectedResult2,
Ben Wagner884300d2016-12-16 16:51:41 +0000195 buffer2.bytesWritten()));
vandebo@chromium.org04c643b2011-08-08 22:33:05 +0000196}
Hal Canary43fb7a02016-12-30 13:09:03 -0500197
198#endif