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