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feat(字体渲染): 支持渐变字体渲染

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xiaoqidun
2026-06-25 14:38:55 +08:00
parent 1ac0fe6ca4
commit f00f320429
5 changed files with 108 additions and 11 deletions
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ofdgo_font_cff.go
+12 -5
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@@ -803,10 +803,9 @@ func getCmapFromCFF(data []byte, numGlyphs int) map[rune]uint16 {
if gid == 0 {
continue
}
mapping[packedGlyphRune(uint16(gid))] = uint16(gid)
if r, ok := adobeGB1CIDToUnicode(cid); ok {
mapping[r] = uint16(gid)
} else {
mapping[0xE000+rune(gid)] = uint16(gid)
}
}
return mapping
@@ -816,7 +815,7 @@ func getCmapFromCFF(data []byte, numGlyphs int) map[rune]uint16 {
if gid == 0 {
continue
}
mapping[0xE000+rune(gid)] = uint16(gid)
mapping[packedGlyphRune(uint16(gid))] = uint16(gid)
}
return mapping
}
@@ -838,8 +837,9 @@ func getCmapFromCFF(data []byte, numGlyphs int) map[rune]uint16 {
r = getUnicodeFromName(name)
}
if r == 0 {
r = 0xE000 + rune(gid)
r = packedGlyphRune(uint16(gid))
}
mapping[packedGlyphRune(uint16(gid))] = uint16(gid)
mapping[r] = uint16(gid)
}
return mapping
@@ -867,7 +867,14 @@ func getCFFCIDRuneMap(data []byte) map[uint16]rune {
}
gidRunes := make(map[uint16]rune)
for run, gid := range mapping {
gidRunes[gid] = run
if run != packedGlyphRune(gid) {
gidRunes[gid] = run
}
}
for run, gid := range mapping {
if _, ok := gidRunes[gid]; !ok {
gidRunes[gid] = run
}
}
result := make(map[uint16]rune)
for gid, cid := range sids {