f107a2fd01
Create new header and namespace, `SkUTF` where we are putting all of our
robust, well documented UTF-8, UTF-16, and UTF-32 functions:
`SkUTF::{Count,Next,To}UTF{8,16,32}()`.
SkUTF.h and SkUTF.cpp do not depend on the rest of Skia and are suitable
for re-use in other modules.
Some of the old UTF-{8,16} functions still live in SkUtils.h; their use
will be phased out in future CLs.
Also added more unit testing and cleaned up old tests.
Removed functions that were unused outside of tests or used only once.
Change-Id: Iaa59b8705abccf9c4ba082f855da368a0bad8380
Reviewed-on: https://skia-review.googlesource.com/143306
Reviewed-by: Ben Wagner <bungeman@google.com>
Commit-Queue: Hal Canary <halcanary@google.com>
50 lines
1.6 KiB
C++
50 lines
1.6 KiB
C++
/*
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* Copyright 2011 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#include "SkPaint.h"
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#include "SkUtils.h"
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#include "Test.h"
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// Simple test to ensure that when we call textToGlyphs, we get the same
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// result (for the same text) when using UTF8, UTF16, UTF32.
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// TODO: make the text more complex (i.e. incorporate chars>7bits)
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DEF_TEST(Unicode_textencodings, reporter) {
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const char text8[] = "ABCDEFGabcdefg0123456789";
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uint16_t text16[sizeof(text8)];
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int32_t text32[sizeof(text8)];
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size_t len8 = strlen(text8);
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size_t len16 = len8 * 2;
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size_t len32 = len8 * 4;
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// expand our 8bit chars to 16 and 32
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for (size_t i = 0; i < len8; ++i) {
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text32[i] = text16[i] = text8[i];
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}
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uint16_t glyphs8[sizeof(text8)];
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uint16_t glyphs16[sizeof(text8)];
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uint16_t glyphs32[sizeof(text8)];
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SkPaint paint;
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paint.setTextEncoding(SkPaint::kUTF8_TextEncoding);
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int count8 = paint.textToGlyphs(text8, len8, glyphs8);
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paint.setTextEncoding(SkPaint::kUTF16_TextEncoding);
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int count16 = paint.textToGlyphs(text16, len16, glyphs16);
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paint.setTextEncoding(SkPaint::kUTF32_TextEncoding);
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int count32 = paint.textToGlyphs(text32, len32, glyphs32);
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REPORTER_ASSERT(reporter, (int)len8 == count8);
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REPORTER_ASSERT(reporter, (int)len8 == count16);
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REPORTER_ASSERT(reporter, (int)len8 == count32);
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REPORTER_ASSERT(reporter, !memcmp(glyphs8, glyphs16, count8 * sizeof(uint16_t)));
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REPORTER_ASSERT(reporter, !memcmp(glyphs8, glyphs32, count8 * sizeof(uint16_t)));
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}
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