/* * Copyright 2011 Google Inc. * * Use of this source code is governed by a BSD-style license that can be * found in the LICENSE file. */ #include "SkPaint.h" #include "SkUtils.h" #include "Test.h" // Unicode Variation Selector ranges: inclusive #define UVS_MIN0 0x180B #define UVS_MAX0 0x180D #define UVS_MIN1 0xFE00 #define UVS_MAX1 0xFE0F #define UVS_MIN2 0xE0100 #define UVS_MAX2 0xE01EF static bool isUVS(SkUnichar uni) { return (uni >= UVS_MIN0 && uni <= UVS_MAX0) || (uni >= UVS_MIN1 && uni <= UVS_MAX1) || (uni >= UVS_MIN2 && uni <= UVS_MAX2); } static void test_uvs(skiatest::Reporter* reporter) { // [min, max], [min, max] ... inclusive static const SkUnichar gRanges[] = { UVS_MIN0, UVS_MAX0, UVS_MIN1, UVS_MAX1, UVS_MIN2, UVS_MAX2 }; for (size_t i = 0; i < SK_ARRAY_COUNT(gRanges); i += 2) { for (SkUnichar uni = gRanges[i] - 8; uni <= gRanges[i+1] + 8; ++uni) { bool uvs0 = isUVS(uni); bool uvs1 = SkUnichar_IsVariationSelector(uni); REPORTER_ASSERT(reporter, uvs0 == uvs1); } } } // Simple test to ensure that when we call textToGlyphs, we get the same // result (for the same text) when using UTF8, UTF16, UTF32. // TODO: make the text more complex (i.e. incorporate chars>7bits) static void test_textencodings(skiatest::Reporter* reporter) { const char text8[] = "ABCDEFGabcdefg0123456789"; uint16_t text16[sizeof(text8)]; int32_t text32[sizeof(text8)]; size_t len8 = strlen(text8); size_t len16 = len8 * 2; size_t len32 = len8 * 4; // expand our 8bit chars to 16 and 32 for (size_t i = 0; i < len8; ++i) { text32[i] = text16[i] = text8[i]; } uint16_t glyphs8[sizeof(text8)]; uint16_t glyphs16[sizeof(text8)]; uint16_t glyphs32[sizeof(text8)]; SkPaint paint; paint.setTextEncoding(SkPaint::kUTF8_TextEncoding); int count8 = paint.textToGlyphs(text8, len8, glyphs8); paint.setTextEncoding(SkPaint::kUTF16_TextEncoding); int count16 = paint.textToGlyphs(text16, len16, glyphs16); paint.setTextEncoding(SkPaint::kUTF32_TextEncoding); int count32 = paint.textToGlyphs(text32, len32, glyphs32); REPORTER_ASSERT(reporter, (int)len8 == count8); REPORTER_ASSERT(reporter, (int)len8 == count16); REPORTER_ASSERT(reporter, (int)len8 == count32); REPORTER_ASSERT(reporter, !memcmp(glyphs8, glyphs16, count8 * sizeof(uint16_t))); REPORTER_ASSERT(reporter, !memcmp(glyphs8, glyphs32, count8 * sizeof(uint16_t))); } DEF_TEST(Unicode, reporter) { test_uvs(reporter); test_textencodings(reporter); }