curioustorvald/Terrarum-sans-bitmap
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keming machine dot removal directive

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minjaesong
2026-03-07 22:41:24 +09:00
parent 163e3d7b3e
commit 2008bbf6dd
8 changed files with 27 additions and 21 deletions
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src/assets/ascii_variable.tga LFS
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4
src/net/torvald/terrarumsansbitmap/GlyphProps.kt
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@@ -1,5 +1,7 @@
package net.torvald.terrarumsansbitmap
import net.torvald.terrarumsansbitmap.gdx.CodePoint
/**
* Created by minjaesong on 2021-11-25.
*/
@@ -29,6 +31,8 @@ data class GlyphProps(
val isKernYtype: Boolean = false,
val kerningMask: Int = 255,
val dotRemoval: CodePoint? = null,
val directiveOpcode: Int = 0, // 8-bits wide
val directiveArg1: Int = 0, // 8-bits wide
val directiveArg2: Int = 0, // 8-bits wide

19
src/net/torvald/terrarumsansbitmap/gdx/TerrarumSansBitmap.kt
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@@ -921,9 +921,9 @@ class TerrarumSansBitmap(
val isLowHeight = (pixmap.getPixel(codeStartX, codeStartY + 5).and(255) != 0)
// Keming machine parameters
val kerningBit1 = pixmap.getPixel(codeStartX, codeStartY + 6).tagify()
val kerningBit2 = pixmap.getPixel(codeStartX, codeStartY + 7).tagify()
val kerningBit3 = pixmap.getPixel(codeStartX, codeStartY + 8).tagify()
val kerningBit1 = pixmap.getPixel(codeStartX, codeStartY + 6).tagify() // glyph shape
val kerningBit2 = pixmap.getPixel(codeStartX, codeStartY + 7).tagify() // dot removal
val kerningBit3 = pixmap.getPixel(codeStartX, codeStartY + 8).tagify() // unused
var isKernYtype = ((kerningBit1 and 0x80000000.toInt()) != 0)
var kerningMask = kerningBit1.ushr(8).and(0xFFFFFF)
val hasKernData = kerningBit1 and 255 != 0//(kerningBit1 and 255 != 0 && kerningMask != 0xFFFF)
@@ -971,7 +971,9 @@ class TerrarumSansBitmap(
GlyphProps.STACK_DONT
else (0..1).fold(0) { acc, y -> acc or ((pixmap.getPixel(codeStartX, codeStartY + y + 18).and(255) != 0).toInt() shl y) }
glyphProps[code] = GlyphProps(width, isLowHeight, nudgeX, nudgeY, diacriticsAnchors, alignWhere, writeOnTop, stackWhere, IntArray(15), hasKernData, isKernYtype, kerningMask, directiveOpcode, directiveArg1, directiveArg2)
val dotRemoval = if (kerningBit2 == 0) null else kerningBit2.ushr(8)
glyphProps[code] = GlyphProps(width, isLowHeight, nudgeX, nudgeY, diacriticsAnchors, alignWhere, writeOnTop, stackWhere, IntArray(15), hasKernData, isKernYtype, kerningMask, dotRemoval, directiveOpcode, directiveArg1, directiveArg2)
// extra info
val extCount = glyphProps[code]?.requiredExtInfoCount() ?: 0
@@ -1533,8 +1535,8 @@ class TerrarumSansBitmap(
}
// for lowercase i and j, if cNext is a diacritic that goes on top, remove the dots
else if (diacriticDotRemoval.containsKey(c) && (glyphProps[cNext]?.writeOnTop ?: -1) >= 0 && glyphProps[cNext]?.stackWhere == GlyphProps.STACK_UP) {
seq.add(diacriticDotRemoval[c]!!)
else if (glyphProps[c]!!.dotRemoval != null && (glyphProps[cNext]?.writeOnTop ?: -1) >= 0 && glyphProps[cNext]?.stackWhere == GlyphProps.STACK_UP) {
seq.add(glyphProps[c]!!.dotRemoval!!)
}
// BEGIN of tamil subsystem implementation
@@ -2747,11 +2749,6 @@ class TerrarumSansBitmap(
0x20..0x7F,
)
private val diacriticDotRemoval = hashMapOf(
'i'.toInt() to 0x131,
'j'.toInt() to 0x237
)
internal fun Int.charInfo() = "U+${this.toString(16).padStart(4, '0').toUpperCase()}: ${Character.getName(this)}"
const val NQSP = 0x2000