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implement SkTestTypeface::onCharsToGlyphs()

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It has only been working for UTF32.

Change-Id: I69329dd43b6d240516e4ab40df6e8c9f7bebf8a8
Reviewed-on: https://skia-review.googlesource.com/70102
Reviewed-by: Ben Wagner <bungeman@google.com>
Commit-Queue: Mike Klein <mtklein@chromium.org>
This commit is contained in:
Mike Klein 2017-11-10 13:42:29 -05:00 committed by Skia Commit-Bot
parent 36068b232c
commit 71a38d9bae
1 changed files with 13 additions and 4 deletions
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17
tools/SkTestScalerContext.cpp
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@ -18,6 +18,7 @@
#include "SkScalerContext.h"
#include "SkTestScalerContext.h"
#include "SkTypefaceCache.h"
#include "SkUtils.h"
SkTestFont::SkTestFont(const SkTestFontData& fontData)
: INHERITED()
@ -173,10 +174,18 @@ void SkTestTypeface::onGetFontDescriptor(SkFontDescriptor* desc, bool* isLocal)
int SkTestTypeface::onCharsToGlyphs(const void* chars, Encoding encoding,
uint16_t glyphs[], int glyphCount) const {
SkASSERT(encoding == kUTF32_Encoding);
for (int index = 0; index < glyphCount; ++index) {
SkUnichar ch = ((SkUnichar*) chars)[index];
glyphs[index] = fTestFont->codeToIndex(ch);
auto utf8 = (const char*)chars;
auto utf16 = (const uint16_t*)chars;
auto utf32 = (const SkUnichar*)chars;
for (int i = 0; i < glyphCount; i++) {
SkUnichar ch;
switch (encoding) {
case kUTF8_Encoding: ch = SkUTF8_NextUnichar(&utf8 ); break;
case kUTF16_Encoding: ch = SkUTF16_NextUnichar(&utf16); break;
case kUTF32_Encoding: ch = *utf32++; break;
}
glyphs[i] = fTestFont->codeToIndex(ch);
}
return glyphCount;
}