Initial import of Cobalt 2.8885 2016-07-27
diff --git a/src/third_party/skia/tests/ToUnicodeTest.cpp b/src/third_party/skia/tests/ToUnicodeTest.cpp
new file mode 100644
index 0000000..919ba11
--- /dev/null
+++ b/src/third_party/skia/tests/ToUnicodeTest.cpp
@@ -0,0 +1,180 @@
+/*
+ * 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 "SkData.h"
+#include "SkPDFFont.h"
+#include "SkPDFTypes.h"
+#include "SkStream.h"
+#include "Test.h"
+
+static bool stream_equals(const SkDynamicMemoryWStream& stream, size_t offset,
+ const char* buffer, size_t len) {
+ SkAutoDataUnref data(stream.copyToData());
+ if (offset + len > data->size()) {
+ return false;
+ }
+ if (len != strlen(buffer)) {
+ return false;
+ }
+ return memcmp(data->bytes() + offset, buffer, len) == 0;
+}
+
+void append_cmap_sections(const SkTDArray<SkUnichar>& glyphToUnicode,
+ const SkPDFGlyphSet* subset,
+ SkDynamicMemoryWStream* cmap,
+ bool multiByteGlyphs,
+ uint16_t firstGlypthID,
+ uint16_t lastGlypthID);
+
+DEF_TEST(ToUnicode, reporter) {
+ SkTDArray<SkUnichar> glyphToUnicode;
+ SkTDArray<uint16_t> glyphsInSubset;
+ SkPDFGlyphSet subset;
+
+ glyphToUnicode.push(0); // 0
+ glyphToUnicode.push(0); // 1
+ glyphToUnicode.push(0); // 2
+ glyphsInSubset.push(3);
+ glyphToUnicode.push(0x20); // 3
+ glyphsInSubset.push(4);
+ glyphToUnicode.push(0x25); // 4
+ glyphsInSubset.push(5);
+ glyphToUnicode.push(0x27); // 5
+ glyphsInSubset.push(6);
+ glyphToUnicode.push(0x28); // 6
+ glyphsInSubset.push(7);
+ glyphToUnicode.push(0x29); // 7
+ glyphsInSubset.push(8);
+ glyphToUnicode.push(0x2F); // 8
+ glyphsInSubset.push(9);
+ glyphToUnicode.push(0x33); // 9
+ glyphToUnicode.push(0); // 10
+ glyphsInSubset.push(11);
+ glyphToUnicode.push(0x35); // 11
+ glyphsInSubset.push(12);
+ glyphToUnicode.push(0x36); // 12
+ glyphsInSubset.push(13);
+ glyphToUnicode.push(0x37); // 13
+ for (uint16_t i = 14; i < 0xFE; ++i) {
+ glyphToUnicode.push(0); // Zero from index 0x9 to 0xFD
+ }
+ glyphsInSubset.push(0xFE);
+ glyphToUnicode.push(0x1010);
+ glyphsInSubset.push(0xFF);
+ glyphToUnicode.push(0x1011);
+ glyphsInSubset.push(0x100);
+ glyphToUnicode.push(0x1012);
+ glyphsInSubset.push(0x101);
+ glyphToUnicode.push(0x1013);
+
+ SkDynamicMemoryWStream buffer;
+ subset.set(glyphsInSubset.begin(), glyphsInSubset.count());
+ append_cmap_sections(glyphToUnicode, &subset, &buffer, true, 0, 0xFFFF);
+
+ 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.getOffset()));
+
+ // Remove characters and ranges.
+ buffer.reset();
+
+ append_cmap_sections(glyphToUnicode, &subset, &buffer, true, 8, 0x00FF);
+
+ 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.getOffset()));
+
+ // Remove characters from range to downdrade it to one char.
+ buffer.reset();
+
+ append_cmap_sections(glyphToUnicode, &subset, &buffer, true, 0x00D, 0x00FE);
+
+ char expectedResultChop2[] =
+"2 beginbfchar\n\
+<000D> <0037>\n\
+<00FE> <1010>\n\
+endbfchar\n";
+
+ REPORTER_ASSERT(reporter, stream_equals(buffer, 0, expectedResultChop2,
+ buffer.getOffset()));
+
+ buffer.reset();
+
+ append_cmap_sections(glyphToUnicode, NULL, &buffer, false, 0xFC, 0x110);
+
+ char expectedResultSingleBytes[] =
+"2 beginbfchar\n\
+<0001> <0000>\n\
+<0002> <0000>\n\
+endbfchar\n\
+1 beginbfrange\n\
+<0003> <0006> <1010>\n\
+endbfrange\n";
+
+ REPORTER_ASSERT(reporter, stream_equals(buffer, 0,
+ expectedResultSingleBytes,
+ buffer.getOffset()));
+
+ glyphToUnicode.reset();
+ glyphsInSubset.reset();
+ SkPDFGlyphSet subset2;
+
+ // Test mapping:
+ // I n s t a l
+ // Glyph id 2c 51 56 57 44 4f
+ // Unicode 49 6e 73 74 61 6c
+ for (size_t i = 0; i < 100; ++i) {
+ glyphToUnicode.push(i + 29);
+ }
+
+ glyphsInSubset.push(0x2C);
+ glyphsInSubset.push(0x44);
+ glyphsInSubset.push(0x4F);
+ glyphsInSubset.push(0x51);
+ glyphsInSubset.push(0x56);
+ glyphsInSubset.push(0x57);
+
+ SkDynamicMemoryWStream buffer2;
+ subset2.set(glyphsInSubset.begin(), glyphsInSubset.count());
+ append_cmap_sections(glyphToUnicode, &subset2, &buffer2, true, 0, 0xffff);
+
+ 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.getOffset()));
+}
