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Fast path shaping non-joining chars

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bloeys
2022-07-11 11:29:12 +04:00
parent 851387d6d8
commit 38dafbfd65
2 changed files with 8 additions and 18 deletions
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20
glyphs/glyphs.go
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@ -270,6 +270,7 @@ func (gr *GlyphRend) GetTextRuns(t string, textRunsBuf *[]TextRun) {
}
}
//GlyphFromRunes does shaping where it selects the proper rune based (e.g. end Alef) on the surrounding runes
func GlyphFromRunes(glyphTable map[rune]FontAtlasGlyph, curr, prev, next rune) FontAtlasGlyph {
//PERF: Map access times are absolute garbage to the point that ~85%+ of the runtime of this func
@ -287,11 +288,13 @@ func GlyphFromRunes(glyphTable map[rune]FontAtlasGlyph, curr, prev, next rune) F
//Isolated case
if !prevIsValid && !nextIsValid {
g := glyphTable[curr]
return g
return glyphTable[curr]
}
ri := RuneInfos[curr]
if ri.JoinType == JoiningType_None || ri.JoinType == JoiningType_Transparent {
return glyphTable[curr]
}
prevJoinType := RuneInfos[prev].JoinType
joinWithRight := prevIsValid &&
@ -351,19 +354,6 @@ func GlyphFromRunes(glyphTable map[rune]FontAtlasGlyph, curr, prev, next rune) F
break
}
}
case PosCtx_isolated:
// equivRunes := RuneInfos[curr].EquivalentRunes
// for i := 0; i < len(equivRunes); i++ {
// otherRune := equivRunes[i]
// otherRuneInfo := RuneInfos[otherRune]
// if otherRuneInfo.DecompTag == DecompTag_isolated {
// curr = otherRune
// break
// }
// }
}
return glyphTable[curr]