2011-08-08 22:33:05 +00:00
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/*
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* Copyright 2010 The Android Open Source Project
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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2019-04-23 17:05:21 +00:00
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#include "tests/Test.h"
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2016-12-30 18:09:03 +00:00
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#ifdef SK_SUPPORT_PDF
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2019-04-23 17:05:21 +00:00
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#include "include/core/SkData.h"
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#include "include/core/SkStream.h"
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2022-02-27 17:35:53 +00:00
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#include "include/private/SkTDArray.h"
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2019-04-23 17:05:21 +00:00
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#include "include/private/SkTo.h"
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#include "src/pdf/SkPDFMakeToUnicodeCmap.h"
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2011-08-08 22:33:05 +00:00
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2018-10-19 16:21:41 +00:00
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static constexpr SkGlyphID kMaximumGlyphIndex = UINT16_MAX;
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2016-08-18 21:22:52 +00:00
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2011-08-08 22:33:05 +00:00
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static bool stream_equals(const SkDynamicMemoryWStream& stream, size_t offset,
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2012-01-03 18:35:39 +00:00
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const char* buffer, size_t len) {
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2016-12-15 18:02:33 +00:00
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if (len != strlen(buffer)) {
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2011-08-08 22:33:05 +00:00
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return false;
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}
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2016-12-15 18:02:33 +00:00
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const size_t streamSize = stream.bytesWritten();
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if (offset + len > streamSize) {
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2012-01-03 18:35:39 +00:00
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return false;
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}
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2016-12-15 18:02:33 +00:00
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SkAutoTMalloc<char> data(streamSize);
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stream.copyTo(data.get());
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return memcmp(data.get() + offset, buffer, len) == 0;
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2011-08-08 22:33:05 +00:00
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}
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2016-09-09 18:41:59 +00:00
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DEF_TEST(SkPDF_ToUnicode, reporter) {
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2011-08-08 22:33:05 +00:00
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SkTDArray<SkUnichar> glyphToUnicode;
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SkTDArray<uint16_t> glyphsInSubset;
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2018-10-19 16:21:41 +00:00
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SkPDFGlyphUse subset(1, kMaximumGlyphIndex);
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2011-08-08 22:33:05 +00:00
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2018-08-08 15:23:41 +00:00
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glyphToUnicode.push_back(0); // 0
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glyphToUnicode.push_back(0); // 1
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glyphToUnicode.push_back(0); // 2
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glyphsInSubset.push_back(3);
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glyphToUnicode.push_back(0x20); // 3
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glyphsInSubset.push_back(4);
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glyphToUnicode.push_back(0x25); // 4
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glyphsInSubset.push_back(5);
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glyphToUnicode.push_back(0x27); // 5
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glyphsInSubset.push_back(6);
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glyphToUnicode.push_back(0x28); // 6
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glyphsInSubset.push_back(7);
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glyphToUnicode.push_back(0x29); // 7
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glyphsInSubset.push_back(8);
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glyphToUnicode.push_back(0x2F); // 8
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glyphsInSubset.push_back(9);
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glyphToUnicode.push_back(0x33); // 9
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glyphToUnicode.push_back(0); // 10
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glyphsInSubset.push_back(11);
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glyphToUnicode.push_back(0x35); // 11
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glyphsInSubset.push_back(12);
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glyphToUnicode.push_back(0x36); // 12
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glyphsInSubset.push_back(13);
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glyphToUnicode.push_back(0x37); // 13
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2013-09-18 19:29:08 +00:00
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for (uint16_t i = 14; i < 0xFE; ++i) {
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glyphToUnicode.push_back(0); // Zero from index 0x9 to 0xFD
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2011-08-08 22:33:05 +00:00
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}
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2018-08-08 15:23:41 +00:00
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glyphsInSubset.push_back(0xFE);
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glyphToUnicode.push_back(0x1010);
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glyphsInSubset.push_back(0xFF);
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glyphToUnicode.push_back(0x1011);
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glyphsInSubset.push_back(0x100);
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glyphToUnicode.push_back(0x1012);
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glyphsInSubset.push_back(0x101);
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glyphToUnicode.push_back(0x1013);
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2011-08-08 22:33:05 +00:00
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2018-05-09 15:50:34 +00:00
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SkGlyphID lastGlyphID = SkToU16(glyphToUnicode.count() - 1);
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2011-08-08 22:33:05 +00:00
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SkDynamicMemoryWStream buffer;
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2018-10-19 14:08:42 +00:00
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for (uint16_t v : glyphsInSubset) {
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subset.set(v);
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}
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2018-05-09 15:50:34 +00:00
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SkPDFAppendCmapSections(&glyphToUnicode[0], &subset, &buffer, true, 0,
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2020-02-07 15:36:46 +00:00
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std::min<SkGlyphID>(0xFFFF, lastGlyphID));
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2011-08-08 22:33:05 +00:00
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char expectedResult[] =
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"4 beginbfchar\n\
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<0003> <0020>\n\
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<0004> <0025>\n\
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<0008> <002F>\n\
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<0009> <0033>\n\
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endbfchar\n\
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4 beginbfrange\n\
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<0005> <0007> <0027>\n\
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2013-09-18 19:29:08 +00:00
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<000B> <000D> <0035>\n\
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2011-08-08 22:33:05 +00:00
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<00FE> <00FF> <1010>\n\
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<0100> <0101> <1012>\n\
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endbfrange\n";
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REPORTER_ASSERT(reporter, stream_equals(buffer, 0, expectedResult,
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2016-12-16 16:51:41 +00:00
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buffer.bytesWritten()));
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2012-01-03 18:35:39 +00:00
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2013-09-18 19:29:08 +00:00
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// Remove characters and ranges.
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buffer.reset();
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2018-05-09 15:50:34 +00:00
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SkPDFAppendCmapSections(&glyphToUnicode[0], &subset, &buffer, true, 8,
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2020-02-07 15:36:46 +00:00
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std::min<SkGlyphID>(0x00FF, lastGlyphID));
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2013-09-18 19:29:08 +00:00
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char expectedResultChop1[] =
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"2 beginbfchar\n\
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<0008> <002F>\n\
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<0009> <0033>\n\
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endbfchar\n\
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2 beginbfrange\n\
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<000B> <000D> <0035>\n\
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<00FE> <00FF> <1010>\n\
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endbfrange\n";
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REPORTER_ASSERT(reporter, stream_equals(buffer, 0, expectedResultChop1,
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2016-12-16 16:51:41 +00:00
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buffer.bytesWritten()));
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2013-09-18 19:29:08 +00:00
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// Remove characters from range to downdrade it to one char.
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buffer.reset();
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2018-05-09 15:50:34 +00:00
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SkPDFAppendCmapSections(&glyphToUnicode[0], &subset, &buffer, true, 0x00D,
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2020-02-07 15:36:46 +00:00
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std::min<SkGlyphID>(0x00FE, lastGlyphID));
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2013-09-18 19:29:08 +00:00
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char expectedResultChop2[] =
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"2 beginbfchar\n\
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<000D> <0037>\n\
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<00FE> <1010>\n\
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endbfchar\n";
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REPORTER_ASSERT(reporter, stream_equals(buffer, 0, expectedResultChop2,
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2016-12-16 16:51:41 +00:00
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buffer.bytesWritten()));
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2013-09-18 19:29:08 +00:00
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2013-12-11 18:47:11 +00:00
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buffer.reset();
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2018-05-09 15:50:34 +00:00
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SkPDFAppendCmapSections(&glyphToUnicode[0], nullptr, &buffer, false, 0xFC,
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2020-02-07 15:36:46 +00:00
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std::min<SkGlyphID>(0x110, lastGlyphID));
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2013-12-11 18:47:11 +00:00
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char expectedResultSingleBytes[] =
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"2 beginbfchar\n\
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2016-08-31 19:52:35 +00:00
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<01> <0000>\n\
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<02> <0000>\n\
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2013-12-11 18:47:11 +00:00
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endbfchar\n\
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1 beginbfrange\n\
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2016-08-31 19:52:35 +00:00
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<03> <06> <1010>\n\
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2013-12-11 18:47:11 +00:00
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endbfrange\n";
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REPORTER_ASSERT(reporter, stream_equals(buffer, 0,
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expectedResultSingleBytes,
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2016-12-16 16:51:41 +00:00
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buffer.bytesWritten()));
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2013-12-11 18:47:11 +00:00
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2012-01-03 18:35:39 +00:00
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glyphToUnicode.reset();
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glyphsInSubset.reset();
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2018-10-19 16:21:41 +00:00
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SkPDFGlyphUse subset2(1, kMaximumGlyphIndex);
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2012-01-03 18:35:39 +00:00
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// Test mapping:
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// I n s t a l
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// Glyph id 2c 51 56 57 44 4f
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// Unicode 49 6e 73 74 61 6c
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2014-12-12 23:11:17 +00:00
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for (SkUnichar i = 0; i < 100; ++i) {
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2018-08-08 15:23:41 +00:00
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glyphToUnicode.push_back(i + 29);
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2012-01-03 18:35:39 +00:00
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}
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2018-05-09 15:50:34 +00:00
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lastGlyphID = SkToU16(glyphToUnicode.count() - 1);
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2012-01-03 18:35:39 +00:00
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2018-08-08 15:23:41 +00:00
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glyphsInSubset.push_back(0x2C);
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glyphsInSubset.push_back(0x44);
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glyphsInSubset.push_back(0x4F);
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glyphsInSubset.push_back(0x51);
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glyphsInSubset.push_back(0x56);
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glyphsInSubset.push_back(0x57);
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2012-01-03 18:35:39 +00:00
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SkDynamicMemoryWStream buffer2;
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2018-10-19 14:08:42 +00:00
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for (uint16_t v : glyphsInSubset) {
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subset2.set(v);
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}
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2018-05-09 15:50:34 +00:00
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SkPDFAppendCmapSections(&glyphToUnicode[0], &subset2, &buffer2, true, 0,
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2020-02-07 15:36:46 +00:00
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std::min<SkGlyphID>(0xFFFF, lastGlyphID));
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2012-01-03 18:35:39 +00:00
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char expectedResult2[] =
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"4 beginbfchar\n\
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<002C> <0049>\n\
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<0044> <0061>\n\
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<004F> <006C>\n\
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<0051> <006E>\n\
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endbfchar\n\
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1 beginbfrange\n\
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<0056> <0057> <0073>\n\
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endbfrange\n";
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REPORTER_ASSERT(reporter, stream_equals(buffer2, 0, expectedResult2,
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2016-12-16 16:51:41 +00:00
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buffer2.bytesWritten()));
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2011-08-08 22:33:05 +00:00
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}
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2016-12-30 18:09:03 +00:00
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#endif
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