1 /*
2 * Copyright 2011 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 "SkFont.h"
9 #include "SkPaint.h"
10 #include "SkUTF.h"
11 #include "Test.h"
12
13 // Simple test to ensure that when we call textToGlyphs, we get the same
14 // result (for the same text) when using UTF8, UTF16, UTF32.
15 // TODO: make the text more complex (i.e. incorporate chars>7bits)
DEF_TEST(Unicode_textencodings,reporter)16 DEF_TEST(Unicode_textencodings, reporter) {
17 const char text8[] = "ABCDEFGabcdefg0123456789";
18 uint16_t text16[sizeof(text8)];
19 int32_t text32[sizeof(text8)];
20 size_t len8 = strlen(text8);
21 size_t len16 = len8 * 2;
22 size_t len32 = len8 * 4;
23
24 // expand our 8bit chars to 16 and 32
25 for (size_t i = 0; i < len8; ++i) {
26 text32[i] = text16[i] = text8[i];
27 }
28
29 uint16_t glyphs8[sizeof(text8)];
30 uint16_t glyphs16[sizeof(text8)];
31 uint16_t glyphs32[sizeof(text8)];
32
33 SkFont font;
34
35 int count8 = font.textToGlyphs(text8, len8, kUTF8_SkTextEncoding, glyphs8, SK_ARRAY_COUNT(glyphs8));
36 int count16 = font.textToGlyphs(text16, len16, kUTF16_SkTextEncoding, glyphs16, SK_ARRAY_COUNT(glyphs16));
37 int count32 = font.textToGlyphs(text32, len32, kUTF32_SkTextEncoding, glyphs32, SK_ARRAY_COUNT(glyphs32));
38
39 REPORTER_ASSERT(reporter, (int)len8 == count8);
40 REPORTER_ASSERT(reporter, (int)len8 == count16);
41 REPORTER_ASSERT(reporter, (int)len8 == count32);
42
43 REPORTER_ASSERT(reporter, !memcmp(glyphs8, glyphs16, count8 * sizeof(uint16_t)));
44 REPORTER_ASSERT(reporter, !memcmp(glyphs8, glyphs32, count8 * sizeof(uint16_t)));
45 }
46
47 #include "SkFont.h"
48 #include "SkFontPriv.h"
49
DEF_TEST(glyphs_to_unichars,reporter)50 DEF_TEST(glyphs_to_unichars, reporter) {
51 SkFont font;
52
53 const int N = 52;
54 SkUnichar uni[N];
55 for (int i = 0; i < 26; ++i) {
56 uni[i + 0] = i + 'A';
57 uni[i + 26] = i + 'a';
58 }
59 uint16_t glyphs[N];
60 font.textToGlyphs(uni, sizeof(uni), kUTF32_SkTextEncoding, glyphs, N);
61
62 SkUnichar uni2[N];
63 SkFontPriv::GlyphsToUnichars(font, glyphs, N, uni2);
64 REPORTER_ASSERT(reporter, memcmp(uni, uni2, sizeof(uni)) == 0);
65 }
66
67