1 /*
2 * Copyright 2012 Google Inc.
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 "Test.h"
9 #include "SkTypeface.h"
10 #include "SkFontHost.h"
11
12 //#define DUMP_TABLES
13
14 #define kFontTableTag_head SkSetFourByteTag('h', 'e', 'a', 'd')
15 #define kFontTableTag_hhea SkSetFourByteTag('h', 'h', 'e', 'a')
16 #define kFontTableTag_maxp SkSetFourByteTag('m', 'a', 'x', 'p')
17
18 static const struct TagSize {
19 SkFontTableTag fTag;
20 size_t fSize;
21 } gKnownTableSizes[] = {
22 { kFontTableTag_head, 54 },
23 { kFontTableTag_hhea, 36 },
24 { kFontTableTag_maxp, 32 },
25 };
26
test_tables(skiatest::Reporter * reporter,SkTypeface * face)27 static void test_tables(skiatest::Reporter* reporter, SkTypeface* face) {
28 SkFontID fontID = face->uniqueID();
29
30 int count = SkFontHost::CountTables(fontID);
31
32 SkAutoTMalloc<SkFontTableTag> storage(count);
33 SkFontTableTag* tags = storage.get();
34
35 int count2 = SkFontHost::GetTableTags(fontID, tags);
36 REPORTER_ASSERT(reporter, count2 == count);
37
38 for (int i = 0; i < count; ++i) {
39 size_t size = SkFontHost::GetTableSize(fontID, tags[i]);
40 REPORTER_ASSERT(reporter, size > 0);
41
42 #ifdef DUMP_TABLES
43 char name[5];
44 name[0] = (tags[i] >> 24) & 0xFF;
45 name[1] = (tags[i] >> 16) & 0xFF;
46 name[2] = (tags[i] >> 8) & 0xFF;
47 name[3] = (tags[i] >> 0) & 0xFF;
48 name[4] = 0;
49 SkDebugf("%s %d\n", name, size);
50 #endif
51
52 for (size_t j = 0; j < SK_ARRAY_COUNT(gKnownTableSizes); ++j) {
53 if (gKnownTableSizes[j].fTag == tags[i]) {
54 REPORTER_ASSERT(reporter, gKnownTableSizes[j].fSize == size);
55 }
56 }
57
58 // do we get the same size from GetTableData and GetTableSize
59 {
60 SkAutoMalloc data(size);
61 size_t size2 = SkFontHost::GetTableData(fontID, tags[i], 0, size,
62 data.get());
63 REPORTER_ASSERT(reporter, size2 == size);
64 }
65 }
66 }
67
test_tables(skiatest::Reporter * reporter)68 static void test_tables(skiatest::Reporter* reporter) {
69 static const char* const gNames[] = {
70 NULL, // default font
71 "Arial", "Times", "Times New Roman", "Helvetica", "Courier",
72 "Courier New",
73 };
74
75 for (size_t i = 0; i < SK_ARRAY_COUNT(gNames); ++i) {
76 SkTypeface* face = SkTypeface::CreateFromName(gNames[i],
77 SkTypeface::kNormal);
78 if (face) {
79 #ifdef DUMP_TABLES
80 SkDebugf("%s\n", gNames[i]);
81 #endif
82 test_tables(reporter, face);
83 face->unref();
84 }
85 }
86 }
87
TestFontHost(skiatest::Reporter * reporter)88 static void TestFontHost(skiatest::Reporter* reporter) {
89 test_tables(reporter);
90 }
91
92 // need tests for SkStrSearch
93
94 #include "TestClassDef.h"
95 DEFINE_TESTCLASS("FontHost", FontHostTestClass, TestFontHost)
96