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Terrarum-sans-bitmap/src/net/torvald/terrarumsansbitmap/gdx/TerrarumSansBitmap.kt

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/*
* Terrarum Sans Bitmap
*
* Copyright (c) 2017-2022 see CONTRIBUTORS.txt
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
package net.torvald.terrarumsansbitmap.gdx
import com.badlogic.gdx.Gdx
import com.badlogic.gdx.graphics.Color
import com.badlogic.gdx.graphics.Pixmap
import com.badlogic.gdx.graphics.Texture
import com.badlogic.gdx.graphics.g2d.*
import com.badlogic.gdx.utils.GdxRuntimeException
import net.torvald.terrarumsansbitmap.DiacriticsAnchor
import net.torvald.terrarumsansbitmap.GlyphProps
import java.io.BufferedOutputStream
import java.io.FileOutputStream
import java.util.*
import java.util.zip.CRC32
import java.util.zip.GZIPInputStream
import kotlin.collections.ArrayList
import kotlin.collections.HashMap
import kotlin.math.roundToInt
import kotlin.math.sign
typealias CodepointSequence = ArrayList<CodePoint>
internal typealias CodePoint = Int
internal typealias ARGB8888 = Int
internal typealias Hash = Long
/**
* LibGDX port of Terrarum Sans Bitmap implementation
*
* Filename and Extension for the spritesheet is hard-coded, which are:
*
* - ascii_variable.tga
* - hangul_johab.tga
* - LatinExtA_variable.tga
* - LatinExtB_variable.tga
* - kana.tga
* - cjkpunct.tga
* - wenquanyi.tga.gz
* - cyrillic_variable.tga
* - fullwidth_forms.tga
* - unipunct_variable.tga
* - greek_variable.tga
* - thai_variable.tga
* - puae000-e0ff.tga
*
*
* Glyphs are drawn lazily (calculated on-the-fly, rather than load up all), which is inevitable as we just can't load
* up 40k+ characters on the machine, which will certainly make loading time painfully long.
*
* Color Codes have following Unicode mapping: U+10RGBA, A must be non-zero to be visible. U+100000 reverts any colour
* code effects.
*
* ## Control Characters
*
* - U+100000: Clear colour keys
* - U+100001..U+10FFFF: Colour key (in RGBA order)
* - U+FFFC0: Charset override -- Default (incl. Russian, Ukrainian, etc.)
* - U+FFFC1: Charset override -- Bulgarian
* - U+FFFC2: Charset override -- Serbian
*
* ## Auto Shift Down
*
* Certain characters (e.g. Combining Diacritical Marks) will automatically shift down to accomodate lowercase letters.
* Shiftdown only occurs when non-diacritic character before the mark is lowercase, and the mark itself would stack up.
* Stack-up or down is defined using Tag system.
*
* @param noShadow Self-explanatory
* @param flipY If you have Y-down coord system implemented on your GDX (e.g. legacy codebase), set this to ```true```
* so that the shadow won't be upside-down.
*
* Created by minjaesong on 2017-06-15.
*/
class TerrarumSansBitmap(
fontDir: String,
val noShadow: Boolean = false,
val flipY: Boolean = false,
val invertShadow: Boolean = false,
var errorOnUnknownChar: Boolean = false,
val textCacheSize: Int = 256,
val debug: Boolean = false,
val shadowAlpha: Float = 0.5f,
val shadowAlphaPremultiply: Boolean = false
) : BitmapFont() {
private fun dbgprn(i: Any) { if (debug) println("[${this.javaClass.simpleName}] $i") }
constructor(fontDir: String, noShadow: Boolean, flipY: Boolean, invertShadow: Boolean) : this(fontDir, noShadow, flipY, invertShadow, false, 256, false)
/* This font is a collection of various subsystems, and thus contains copious amount of quick-and-dirty codes.
*
* Notable subsystems:
* - Hangul Assembler with 19 sets
* - Cyrillic Bulgarian and Serbian Variant Selectors
* - Colour Codes
* - Insular, Kana (these are relatively trivial; they just attemps to merge various Unicode sections
* into one sheet and gives custom internal indices)
*/
private var textCacheCap = 0
private val textCache = HashMap<Long, TextCacheObj>(textCacheSize * 2)
/**
* Insertion sorts the last element fo the textCache
*/
private fun addToCache(text: CodepointSequence, linotype: Texture, width: Int) {
val cacheObj = TextCacheObj(text.getHash(), ShittyGlyphLayout(text, linotype, width))
if (textCacheCap < textCacheSize) {
textCache[cacheObj.hash] = cacheObj
textCacheCap += 1
}
else {
// randomly eliminate one
textCache.remove(textCache.keys.random())!!.dispose()
// add new one
textCache[cacheObj.hash] = cacheObj
}
}
private fun getCache(hash: Long): TextCacheObj? {
return textCache[hash]
}
private fun getColour(codePoint: Int): Int { // input: 0x10F_RGB, out: RGBA8888
if (colourBuffer.containsKey(codePoint))
return colourBuffer[codePoint]!!
val r = codePoint.and(0x0F00).ushr(8)
val g = codePoint.and(0x00F0).ushr(4)
val b = codePoint.and(0x000F)
val col = r.shl(28) or r.shl(24) or
g.shl(20) or g.shl(16) or
b.shl(12) or b.shl(8) or
0xFF
colourBuffer[codePoint] = col
return col
}
private val colourBuffer = HashMap<CodePoint, ARGB8888>()
private val fontParentDir = if (fontDir.endsWith('/') || fontDir.endsWith('\\')) fontDir else "$fontDir/"
/** Props of all printable Unicode points. */
private val glyphProps = HashMap<CodePoint, GlyphProps>()
private val sheets: Array<PixmapRegionPack>
private var charsetOverride = 0
private val tempDir = System.getProperty("java.io.tmpdir")
// private val tempFiles = ArrayList<String>()
init {
val sheetsPack = ArrayList<PixmapRegionPack>()
// first we create pixmap to read pixels, then make texture using pixmap
fileList.forEachIndexed { index, it ->
val isVariable = it.endsWith("_variable.tga")
val isXYSwapped = it.contains("xyswap", true)
val isExtraWide = it.contains("extrawide", true)
var pixmap: Pixmap
val status = ArrayList<String>()
if (isVariable) status.add("VARIABLE")
if (isXYSwapped) status.add("XYSWAP")
if (isExtraWide) status.add("EXTRAWIDE")
if (status.size > 0)
dbgprn("loading texture [${status.joinToString()}] $it")
else
dbgprn("loading texture [STATIC] $it")
// unpack gz if applicable
if (it.endsWith(".gz")) {
val tmpFilePath = tempDir + "/tmp_${it.dropLast(7)}.tga"
try {
val gzi = GZIPInputStream(Gdx.files.internal(fontParentDir + it).read(8192))
val wholeFile = gzi.readBytes()
gzi.close()
val fos = BufferedOutputStream(FileOutputStream(tmpFilePath))
fos.write(wholeFile)
fos.flush()
fos.close()
pixmap = Pixmap(Gdx.files.absolute(tmpFilePath))
// tempFiles.add(tmpFilePath)
}
catch (e: GdxRuntimeException) {
//e.printStackTrace()
dbgprn("said texture not found, skipping...")
pixmap = Pixmap(1, 1, Pixmap.Format.RGBA8888)
}
//File(tmpFileName).delete()
}
else {
try {
pixmap = Pixmap(Gdx.files.internal(fontParentDir + it))
}
catch (e: GdxRuntimeException) {
//e.printStackTrace()
dbgprn("said texture not found, skipping...")
// if non-ascii chart is missing, replace it with null sheet
pixmap = Pixmap(1, 1, Pixmap.Format.RGBA8888)
// else, notify by error
if (index == 0) {
println("[${this.javaClass.simpleName}] The ASCII sheet is gone, something is wrong.")
System.exit(1)
}
}
}
if (isVariable) buildWidthTable(pixmap, codeRange[index], if (isExtraWide) 32 else 16)
buildWidthTableFixed()
/*if (!noShadow) {
makeShadowForSheet(pixmap)
}*/
//val texture = Texture(pixmap)
val texRegPack = if (isExtraWide)
PixmapRegionPack(pixmap, W_WIDEVAR_INIT, H, HGAP_VAR, 0, xySwapped = isXYSwapped)
else if (isVariable)
PixmapRegionPack(pixmap, W_VAR_INIT, H, HGAP_VAR, 0, xySwapped = isXYSwapped)
else if (index == SHEET_UNIHAN)
PixmapRegionPack(pixmap, W_UNIHAN, H_UNIHAN) // the only exception that is height is 16
// below they all have height of 20 'H'
else if (index == SHEET_CJK_PUNCT)
PixmapRegionPack(pixmap, W_ASIAN_PUNCT, H)
else if (index == SHEET_KANA)
PixmapRegionPack(pixmap, W_KANA, H)
else if (index == SHEET_HANGUL)
PixmapRegionPack(pixmap, W_HANGUL_BASE, H)
else if (index == SHEET_CUSTOM_SYM)
PixmapRegionPack(pixmap, SIZE_CUSTOM_SYM, SIZE_CUSTOM_SYM) // TODO variable
else if (index == SHEET_RUNIC)
PixmapRegionPack(pixmap, W_LATIN_WIDE, H)
else throw IllegalArgumentException("Unknown sheet index: $index")
//texRegPack.texture.setFilter(minFilter, magFilter)
sheetsPack.add(texRegPack)
pixmap.dispose() // you are terminated
}
sheets = sheetsPack.toTypedArray()
// make sure null char is actually null (draws nothing and has zero width)
sheets[SHEET_ASCII_VARW].regions[0].setColor(0)
sheets[SHEET_ASCII_VARW].regions[0].fill()
glyphProps[0] = GlyphProps(0)
}
override fun getLineHeight(): Float = 24f * scale
override fun getXHeight() = 8f * scale
override fun getCapHeight() = 12f * scale
override fun getAscent() = 3f * scale
override fun getDescent() = 3f * scale
override fun isFlipped() = flipY
override fun setFixedWidthGlyphs(glyphs: CharSequence) {
throw UnsupportedOperationException("Nope, no monospace, and figures are already fixed width, bruv.")
}
init {
setUseIntegerPositions(true)
setOwnsTexture(true)
}
private val offsetUnihan = (H - H_UNIHAN) / 2
private val offsetCustomSym = (H - SIZE_CUSTOM_SYM) / 2
private var flagFirstRun = true
private var textBuffer = CodepointSequence(256)
private lateinit var tempLinotype: Texture
private var nullProp = GlyphProps(15)
private val linotypePaddingX = 16
private val linotypePaddingY = 10
fun draw(batch: Batch, charSeq: CharSequence, x: Int, y: Int) = draw(batch, charSeq, x.toFloat(), y.toFloat())
override fun draw(batch: Batch, charSeq: CharSequence, x: Float, y: Float): GlyphLayout? {
// charSeq.forEach { dbgprn("${it.toInt().charInfo()} ${glyphProps[it.toInt()]}") }
return drawNormalised(batch, charSeq.toCodePoints(), x, y)
}
fun draw(batch: Batch, codepoints: CodepointSequence, x: Int, y: Int) = drawNormalised(batch, codepoints.normalise(), x.toFloat(), y.toFloat())
fun draw(batch: Batch, codepoints: CodepointSequence, x: Float, y: Float) = drawNormalised(batch, codepoints.normalise(), x, y)
fun drawNormalised(batch: Batch, codepoints: CodepointSequence, x: Float, y: Float): GlyphLayout? {
// codepoints.forEach { dbgprn("${it.charInfo()} ${glyphProps[it]}") }
// Q&D fix for issue #12
// When the line ends with a diacritics, the whole letter won't render
// If the line starts with a letter-with-diacritic, it will error out
// Some diacritics (e.g. COMBINING TILDE) do not obey lowercase letters
val charSeqNotBlank = codepoints.size > 0 // determine emptiness BEFORE you hack a null chars in
val newCodepoints = CodepointSequence()
newCodepoints.add(0)
newCodepoints.addAll(codepoints)
newCodepoints.add(0)
fun Int.flipY() = this * if (flipY) 1 else -1
// always draw at integer position; this is bitmap font after all
val x = Math.round(x)
val y = Math.round(y)
val charSeqHash = newCodepoints.getHash()
var renderCol = -1 // subject to change with the colour code
if (charSeqNotBlank) {
val cacheObj = getCache(charSeqHash)
if (cacheObj == null || flagFirstRun) {
textBuffer = newCodepoints
val posmap = buildPosMap(textBuffer)
flagFirstRun = false
//dbgprn("text not in buffer: $charSeq")
//textBuffer.forEach { print("${it.toHex()} ") }
//dbgprn()
// resetHash(charSeq, x.toFloat(), y.toFloat())
val textWidth = posmap.width
val _pw = textWidth + (linotypePaddingX * 2)
val _ph = H + (linotypePaddingY * 2)
if (_pw < 0 || _ph < 0) throw RuntimeException("Illegal linotype dimension (w: $_pw, h: $_ph)")
val linotypePixmap = Pixmap(_pw, _ph, Pixmap.Format.RGBA8888)
var index = 0
while (index <= textBuffer.lastIndex) {
try {
val c = textBuffer[index]
val sheetID = getSheetType(c)
val (sheetX, sheetY) =
if (index == 0) getSheetwisePosition(0, c)
else getSheetwisePosition(textBuffer[index - 1], c)
val hash = getHash(c) // to be used with Bad Transmission Modifier
if (isColourCode(c)) {
if (c == 0x100000) {
renderCol = -1
}
else {
renderCol = getColour(c)
}
}
else if (isCharsetOverride(c)) {
charsetOverride = c - CHARSET_OVERRIDE_DEFAULT
}
else if (sheetID == SHEET_HANGUL) {
// Flookahead for {I, P, F}
val cNext = if (index + 1 < textBuffer.size) textBuffer[index + 1] else 0
val cNextNext = if (index + 2 < textBuffer.size) textBuffer[index + 2] else 0
val hangulLength = if (isHangulJongseong(cNextNext) && isHangulJungseong(cNext))
3
else if (isHangulJungseong(cNext))
2
else
1
val (indices, rows) = toHangulIndexAndRow(c, cNext, cNextNext)
val (indexCho, indexJung, indexJong) = indices
val (choRow, jungRow, jongRow) = rows
val hangulSheet = sheets[SHEET_HANGUL]
val choTex = hangulSheet.get(indexCho, choRow)
val jungTex = hangulSheet.get(indexJung, jungRow)
val jongTex = hangulSheet.get(indexJong, jongRow)
linotypePixmap.drawPixmap(choTex, posmap.x[index] + linotypePaddingX, linotypePaddingY, renderCol)
linotypePixmap.drawPixmap(jungTex, posmap.x[index] + linotypePaddingX, linotypePaddingY, renderCol)
linotypePixmap.drawPixmap(jongTex, posmap.x[index] + linotypePaddingX, linotypePaddingY, renderCol)
index += hangulLength - 1
}
else {
try {
val posY = posmap.y[index].flipY() +
if (sheetID == SHEET_UNIHAN) // evil exceptions
offsetUnihan
else if (sheetID == SHEET_CUSTOM_SYM)
offsetCustomSym
else 0
val posX = posmap.x[index]
val texture = sheets[sheetID].get(sheetX, sheetY)
linotypePixmap.drawPixmap(texture, posX + linotypePaddingX, posY + linotypePaddingY, renderCol)
}
catch (noSuchGlyph: ArrayIndexOutOfBoundsException) {
}
}
index++
}
catch (e: NullPointerException) {
System.err.println("Shit hit the multithreaded fan")
e.printStackTrace()
break
}
}
makeShadow(linotypePixmap)
tempLinotype = Texture(linotypePixmap)
tempLinotype.setFilter(Texture.TextureFilter.Nearest, Texture.TextureFilter.Nearest)
// put things into cache
//textCache[charSeq] = ShittyGlyphLayout(textBuffer, linotype!!)
addToCache(textBuffer, tempLinotype, textWidth)
linotypePixmap.dispose()
}
else {
textBuffer = cacheObj.glyphLayout!!.textBuffer
tempLinotype = cacheObj.glyphLayout!!.linotype
}
batch.draw(tempLinotype,
(x - linotypePaddingX).toFloat(),
(y - linotypePaddingY).toFloat() + (if (flipY) (tempLinotype.height) else 0) * scale,
tempLinotype.width.toFloat() * scale,
(tempLinotype.height.toFloat()) * (if (flipY) -1 else 1) * scale
)
}
return null
}
override fun dispose() {
super.dispose()
textCache.values.forEach { it.dispose() }
sheets.forEach { it.dispose() }
}
fun getSheetType(c: CodePoint): Int {
if (charsetOverride == 1 && isBulgarian(c))
return SHEET_BULGARIAN_VARW
else if (charsetOverride == 2 && isBulgarian(c))
return SHEET_SERBIAN_VARW
else if (isHangul(c))
return SHEET_HANGUL
else {
for (i in codeRange.indices.reversed()) {
if (c in codeRange[i]) return i
}
return SHEET_UNKNOWN
}
}
private fun getSheetwisePosition(cPrev: Int, ch: Int): IntArray {
val sheetType = getSheetType(ch)
val sheetX: Int = if (sheetType == SHEET_UNIHAN) unihanIndexX(ch) else indexX(ch)
val sheetY: Int = when (sheetType) {
SHEET_UNIHAN -> unihanIndexY(ch)
SHEET_EXTA_VARW -> extAindexY(ch)
SHEET_EXTB_VARW -> extBindexY(ch)
SHEET_KANA -> kanaIndexY(ch)
SHEET_CJK_PUNCT -> cjkPunctIndexY(ch)
SHEET_CYRILIC_VARW -> cyrilicIndexY(ch)
SHEET_HALFWIDTH_FULLWIDTH_VARW -> fullwidthUniIndexY(ch)
SHEET_UNI_PUNCT_VARW -> uniPunctIndexY(ch)
SHEET_GREEK_VARW -> greekIndexY(ch)
SHEET_THAI_VARW -> thaiIndexY(ch)
SHEET_CUSTOM_SYM -> symbolIndexY(ch)
SHEET_HAYEREN_VARW -> armenianIndexY(ch)
SHEET_KARTULI_VARW -> kartvelianIndexY(ch)
SHEET_IPA_VARW -> ipaIndexY(ch)
SHEET_RUNIC -> runicIndexY(ch)
SHEET_LATIN_EXT_ADD_VARW -> latinExtAddY(ch)
SHEET_BULGARIAN_VARW, SHEET_SERBIAN_VARW -> cyrilicIndexY(ch)
SHEET_TSALAGI_VARW -> cherokeeIndexY(ch)
SHEET_PHONETIC_EXT_VARW -> phoneticExtIndexY(ch)
SHEET_DEVANAGARI_VARW -> devanagariIndexY(ch)
SHEET_KARTULI_CAPS_VARW -> kartvelianCapsIndexY(ch)
SHEET_DIACRITICAL_MARKS_VARW -> diacriticalMarksIndexY(ch)
SHEET_GREEK_POLY_VARW -> polytonicGreekIndexY(ch)
SHEET_EXTC_VARW -> extCIndexY(ch)
SHEET_EXTD_VARW -> extDIndexY(ch)
SHEET_CURRENCIES_VARW -> currenciesIndexY(ch)
SHEET_INTERNAL_VARW -> internalIndexY(ch)
SHEET_LETTERLIKE_MATHS_VARW -> letterlikeIndexY(ch)
SHEET_ENCLOSED_ALPHNUM_SUPL_VARW -> enclosedAlphnumSuplY(ch)
SHEET_TAMIL_VARW -> tamilIndexY(ch)
SHEET_BENGALI_VARW -> bengaliIndexY(ch)
SHEET_BRAILLE_VARW -> brailleIndexY(ch)
SHEET_SUNDANESE_VARW -> sundaneseIndexY(ch)
SHEET_DEVANAGARI2_INTERNAL_VARW -> devanagari2IndexY(ch)
else -> ch / 16
}
return intArrayOf(sheetX, sheetY)
}
private fun Boolean.toInt() = if (this) 1 else 0
/** @return THIRTY-TWO bit number: this includes alpha channel value; or 0 if alpha is zero */
private fun Int.tagify() = if (this and 255 == 0) 0 else this
/**
* Will happily overwrite any existing entries
*/
private fun buildWidthTable(pixmap: Pixmap, codeRange: Iterable<Int>, cellW: Int = 16, cols: Int = 16) {
val binaryCodeOffset = cellW - 1
val cellH = H
codeRange.forEachIndexed { index, code ->
val cellX = (index % cols) * cellW
val cellY = (index / cols) * cellH
val codeStartX = cellX + binaryCodeOffset
val codeStartY = cellY
val width = (0..4).fold(0) { acc, y -> acc or ((pixmap.getPixel(codeStartX, codeStartY + y).and(255) != 0).toInt() shl y) }
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()
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)
if (!hasKernData) {
isKernYtype = false
kerningMask = 255
}
val compilerDirectives = pixmap.getPixel(codeStartX, codeStartY + 9).tagify()
val directiveOpcode = compilerDirectives.ushr(24).and(255)
val directiveArg1 = compilerDirectives.ushr(16).and(255)
val directiveArg2 = compilerDirectives.ushr(8).and(255)
val nudgingBits = pixmap.getPixel(codeStartX, codeStartY + 10).tagify()
val nudgeX = nudgingBits.ushr(24).toByte().toInt() // signed 8-bit int
val nudgeY = nudgingBits.ushr(16).toByte().toInt() // signed 8-bit int
val diacriticsAnchors = (0..5).map {
val yPos = 13 - (it / 3) * 2
val shift = (3 - (it % 3)) * 8
val yPixel = pixmap.getPixel(codeStartX, codeStartY + yPos).tagify()
val xPixel = pixmap.getPixel(codeStartX, codeStartY + yPos + 1).tagify()
val yUsed = (yPixel ushr shift) and 128 != 0
val xUsed = (xPixel ushr shift) and 128 != 0
val y = if (yUsed) (yPixel ushr shift) and 127 else 0
val x = if (xUsed) (xPixel ushr shift) and 127 else 0
DiacriticsAnchor(it, x, y, xUsed, yUsed)
}.toTypedArray()
val alignWhere = (0..1).fold(0) { acc, y -> acc or ((pixmap.getPixel(codeStartX, codeStartY + y + 15).and(255) != 0).toInt() shl y) }
var writeOnTop = pixmap.getPixel(codeStartX, codeStartY + 17) // NO .tagify()
if (writeOnTop and 255 == 0) writeOnTop = -1 // look for the alpha channel
else {
if (writeOnTop.ushr(8) == 0xFFFFFF) writeOnTop = 0
else writeOnTop = writeOnTop.ushr(28) and 15
}
val stackWhere0 = pixmap.getPixel(codeStartX, codeStartY + 18).tagify()
val stackWhere1 = pixmap.getPixel(codeStartX, codeStartY + 19).tagify()
val stackWhere = if (stackWhere0 == 0x00FF00FF && stackWhere1 == 0x00FF00FF)
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)
// extra info
val extCount = glyphProps[code]?.requiredExtInfoCount() ?: 0
if (extCount > 0) {
for (x in 0 until extCount) {
var info = 0
for (y in 0..19) {
// if ALPHA is not zero, assume it's 1
if (pixmap.getPixel(cellX + x, cellY + y).and(255) != 0) {
info = info or (1 shl y)
}
}
glyphProps[code]!!.extInfo[x] = info
}
// println("[TerrarumSansBitmap] char with $extCount extra info: ${code.charInfo()}; opcode: ${directiveOpcode.toString(16)}")
// println("contents: ${glyphProps[code]!!.extInfo.map { it.toString(16) }.joinToString()}")
}
// Debug prints //
// dbgprn(">> ${code.charInfo()} << ")
// if (nudgingBits != 0) dbgprn("${code.charInfo()} nudgeX=$nudgeX, nudgeY=$nudgeY, nudgingBits=0x${nudgingBits.toString(16)}")
// if (writeOnTop >= 0) dbgprn("WriteOnTop: ${code.charInfo()} (Type-${writeOnTop})")
// if (diacriticsAnchors.any { it.xUsed || it.yUsed }) dbgprn("${code.charInfo()} ${diacriticsAnchors.filter { it.xUsed || it.yUsed }.joinToString()}")
// if (directiveOpcode != 0) dbgprn("Directive opcode ${directiveOpcode.toString(2)}: ${code.charInfo()}")
// if (glyphProps[code]?.isPragma("replacewith") == true) dbgprn("Replacer: ${code.charInfo()} into ${glyphProps[code]!!.extInfo.map { it.toString(16) }.joinToString()}")
// if (stackWhere == GlyphProps.STACK_DONT) dbgprn("Diacritics Don't stack: ${code.charInfo()}")
}
}
private fun buildWidthTableFixed() {
// fixed-width props
codeRange[SHEET_CJK_PUNCT].forEach { glyphProps[it] = GlyphProps(W_ASIAN_PUNCT) }
codeRange[SHEET_CUSTOM_SYM].forEach { glyphProps[it] = GlyphProps(20) }
codeRange[SHEET_HANGUL].forEach { glyphProps[it] = GlyphProps(W_HANGUL_BASE) }
codeRangeHangulCompat.forEach { glyphProps[it] = GlyphProps(W_HANGUL_BASE) }
codeRange[SHEET_KANA].forEach { glyphProps[it] = GlyphProps(W_KANA) }
codeRange[SHEET_RUNIC].forEach { glyphProps[it] = GlyphProps(9) }
codeRange[SHEET_UNIHAN].forEach { glyphProps[it] = GlyphProps(W_UNIHAN) }
(0xD800..0xDFFF).forEach { glyphProps[it] = GlyphProps(0) }
(0x100000..0x10FFFF).forEach { glyphProps[it] = GlyphProps(0) }
(0xFFFA0..0xFFFFF).forEach { glyphProps[it] = GlyphProps(0) }
// manually add width of one orphan insular letter
// WARNING: glyphs in 0xA770..0xA778 has invalid data, further care is required
glyphProps[0x1D79] = GlyphProps(9)
// U+007F is DEL originally, but this font stores bitmap of Replacement Character (U+FFFD)
// to this position. String replacer will replace U+FFFD into U+007F.
glyphProps[0x7F] = GlyphProps(15)
}
private val glyphLayout = GlyphLayout()
fun getWidth(text: String) = getWidthNormalised(text.toCodePoints())
fun getWidth(s: CodepointSequence) = getWidthNormalised(s.normalise())
fun getWidthNormalised(s: CodepointSequence): Int {
val cacheObj = getCache(s.getHash())
if (cacheObj != null) {
return cacheObj.glyphLayout!!.width
}
else {
return buildPosMap(s).width
}
}
/**
* THE function to typeset all the letters and their diacritics
*
* @return Pair of X-positions and Y-positions, of which the X-position's size is greater than the string
* and the last element marks the width of entire string.
*/
private fun buildPosMap(str: List<Int>): Posmap {
val posXbuffer = IntArray(str.size + 1) { 0 }
val posYbuffer = IntArray(str.size) { 0 }
var nonDiacriticCounter = 0 // index of last instance of non-diacritic char
var stackUpwardCounter = 0 // TODO separate stack counter for centre- and right aligned
var stackDownwardCounter = 0
val HALF_VAR_INIT = W_VAR_INIT.minus(1).div(2)
// this is starting to get dirty...
// persisting value. the value is set a few characters before the actual usage
var extraWidth = 0
try {
for (charIndex in 0 until posXbuffer.size - 1) {
if (charIndex > 0) {
// nonDiacriticCounter allows multiple diacritics
val thisChar = str[charIndex]
if (glyphProps[thisChar] == null && errorOnUnknownChar) {
val errorGlyphSB = StringBuilder()
Character.toChars(thisChar).forEach { errorGlyphSB.append(it) }
throw InternalError("No GlyphProps for char '$errorGlyphSB' " +
"(${thisChar.charInfo()})")
}
val thisProp = glyphProps[thisChar] ?: nullProp
val lastNonDiacriticChar = str[nonDiacriticCounter]
val itsProp = glyphProps[lastNonDiacriticChar] ?: nullProp
val kerning = getKerning(lastNonDiacriticChar, thisChar)
//dbgprn("char: ${thisChar.charInfo()}\nproperties: $thisProp")
var alignmentOffset = when (thisProp.alignWhere) {
GlyphProps.ALIGN_LEFT -> 0
GlyphProps.ALIGN_RIGHT -> thisProp.width - W_VAR_INIT
GlyphProps.ALIGN_CENTRE -> Math.ceil((thisProp.width - W_VAR_INIT) / 2.0).toInt()
else -> 0 // implies "diacriticsBeforeGlyph = true"
}
// shoehorn the wider-hangul-width thingamajig
// widen only when the next hangul char is not "jungseongWide"
// (애 in "애슬론" should not be widened)
val thisHangulJungseongIndex = toHangulJungseongIndex(thisChar)
val nextHangulJungseong1 = toHangulJungseongIndex(str.getOrNull(charIndex + 2) ?: 0) ?: -1
val nextHangulJungseong2 = toHangulJungseongIndex(str.getOrNull(charIndex + 3) ?: 0) ?: -1
if (isHangulJungseong(thisChar) && thisHangulJungseongIndex in hangulPeaksWithExtraWidth && (
nextHangulJungseong1 !in jungseongWide ||
nextHangulJungseong2 !in jungseongWide
)) {
//dbgprn("char: ${thisChar.charInfo()}\nproperties: $thisProp")
//dbgprn("${thisChar.charInfo()} ${str.getOrNull(charIndex + 2)?.charInfo()} ${str.getOrNull(charIndex + 3)?.charInfo()}")
extraWidth += 1
}
if (isHangul(thisChar) && !isHangulChoseong(thisChar) && !isHangulCompat(thisChar)) {
posXbuffer[charIndex] = posXbuffer[nonDiacriticCounter]
}
// is this glyph NOT a diacritic?
else if (thisProp.writeOnTop < 0) {
posXbuffer[charIndex] = -thisProp.nudgeX +
when (itsProp.alignWhere) {
GlyphProps.ALIGN_RIGHT ->
posXbuffer[nonDiacriticCounter] + W_VAR_INIT + alignmentOffset + interchar + kerning + extraWidth
GlyphProps.ALIGN_CENTRE ->
posXbuffer[nonDiacriticCounter] + HALF_VAR_INIT + itsProp.width + alignmentOffset + interchar + kerning + extraWidth
else ->
posXbuffer[nonDiacriticCounter] + itsProp.width + alignmentOffset + interchar + kerning + extraWidth
}
posYbuffer[charIndex] = -thisProp.nudgeY
nonDiacriticCounter = charIndex
stackUpwardCounter = 0
stackDownwardCounter = 0
extraWidth = thisProp.nudgeX // NOTE: sign is flipped!
}
// FIXME HACK: using 0th diacritics' X-anchor pos as a type selector
/*else if (thisProp.writeOnTop && thisProp.diacriticsAnchors[0].x == GlyphProps.DIA_JOINER) {
posXbuffer[charIndex] = when (itsProp.alignWhere) {
GlyphProps.ALIGN_RIGHT ->
posXbuffer[nonDiacriticCounter] + W_VAR_INIT + alignmentOffset
//GlyphProps.ALIGN_CENTRE ->
// posXbuffer[nonDiacriticCounter] + HALF_VAR_INIT + itsProp.width + alignmentOffset
else ->
posXbuffer[nonDiacriticCounter] + itsProp.width + alignmentOffset
}
}*/
// is this glyph a diacritic?
else {
val diacriticsType = thisProp.writeOnTop
// set X pos according to alignment information
posXbuffer[charIndex] = when (thisProp.alignWhere) {
GlyphProps.ALIGN_LEFT, GlyphProps.ALIGN_BEFORE -> posXbuffer[nonDiacriticCounter]
GlyphProps.ALIGN_RIGHT -> {
val alignXPos = if (!itsProp.diacriticsAnchors[diacriticsType].xUsed) itsProp.width else itsProp.diacriticsAnchors[diacriticsType].x
posXbuffer[nonDiacriticCounter] - W_VAR_INIT + alignXPos
}
GlyphProps.ALIGN_CENTRE -> {
val alignXPos = if (!itsProp.diacriticsAnchors[diacriticsType].xUsed) itsProp.width.div(2) else itsProp.diacriticsAnchors[diacriticsType].x
if (itsProp.alignWhere == GlyphProps.ALIGN_RIGHT) {
posXbuffer[nonDiacriticCounter] + alignXPos + (itsProp.width + 1).div(2)
}
else {
posXbuffer[nonDiacriticCounter] + alignXPos - HALF_VAR_INIT
}
}
else -> throw InternalError("Unsupported alignment: ${thisProp.alignWhere}")
}
// set Y pos according to diacritics position
// if (thisProp.alignWhere == GlyphProps.ALIGN_CENTRE) {
when (thisProp.stackWhere) {
GlyphProps.STACK_DOWN -> {
posYbuffer[charIndex] = (H_DIACRITICS * stackDownwardCounter + -thisProp.nudgeY) * flipY.toSign()
stackDownwardCounter++
}
GlyphProps.STACK_UP -> {
posYbuffer[charIndex] = (-H_DIACRITICS * stackUpwardCounter + -thisProp.nudgeY) * flipY.toSign()
// shift down on lowercase if applicable
if (getSheetType(thisChar) in autoShiftDownOnLowercase &&
lastNonDiacriticChar.isLowHeight()) {
//dbgprn("AAARRRRHHHH for character ${thisChar.toHex()}")
//dbgprn("lastNonDiacriticChar: ${lastNonDiacriticChar.toHex()}")
//dbgprn("cond: ${thisProp.alignXPos == GlyphProps.DIA_OVERLAY}, charIndex: $charIndex")
if (diacriticsType == GlyphProps.DIA_OVERLAY)
posYbuffer[charIndex] += H_OVERLAY_LOWERCASE_SHIFTDOWN * flipY.toSign() // if minus-assign doesn't work, try plus-assign
else
posYbuffer[charIndex] += H_STACKUP_LOWERCASE_SHIFTDOWN * flipY.toSign() // if minus-assign doesn't work, try plus-assign
}
stackUpwardCounter++
// dbgprn("lastNonDiacriticChar: ${lastNonDiacriticChar.charInfo()}; stack counter: $stackUpwardCounter")
}
GlyphProps.STACK_UP_N_DOWN -> {
posYbuffer[charIndex] = (H_DIACRITICS * stackDownwardCounter + -thisProp.nudgeY) * flipY.toSign()
stackDownwardCounter++
posYbuffer[charIndex] = (-H_DIACRITICS * stackUpwardCounter + -thisProp.nudgeY) * flipY.toSign()
// shift down on lowercase if applicable
if (getSheetType(thisChar) in autoShiftDownOnLowercase &&
lastNonDiacriticChar.isLowHeight()) {
if (diacriticsType == GlyphProps.DIA_OVERLAY)
posYbuffer[charIndex] += H_OVERLAY_LOWERCASE_SHIFTDOWN * flipY.toSign() // if minus-assign doesn't work, try plus-assign
else
posYbuffer[charIndex] += H_STACKUP_LOWERCASE_SHIFTDOWN * flipY.toSign() // if minus-assign doesn't work, try plus-assign
}
stackUpwardCounter++
}
// for BEFORE_N_AFTER, do nothing in here
}
// }
}
}
}
// fill the last of the posXbuffer
if (str.isNotEmpty()) {
val lastCharProp = glyphProps[str.last()]
val penultCharProp = glyphProps[str[nonDiacriticCounter]] ?:
(if (errorOnUnknownChar) throw throw InternalError("No GlyphProps for char '${str[nonDiacriticCounter]}' " +
"(${str[nonDiacriticCounter].charInfo()})") else nullProp)
posXbuffer[posXbuffer.lastIndex] = 1 + posXbuffer[posXbuffer.lastIndex - 1] + // adding 1 to house the shadow
if (lastCharProp != null && lastCharProp.writeOnTop >= 0) {
val realDiacriticWidth = if (lastCharProp.alignWhere == GlyphProps.ALIGN_CENTRE) {
(lastCharProp.width).div(2) + penultCharProp.diacriticsAnchors[0].x
}
else if (lastCharProp.alignWhere == GlyphProps.ALIGN_RIGHT) {
(lastCharProp.width) + penultCharProp.diacriticsAnchors[0].x
}
else 0
maxOf(penultCharProp.width, realDiacriticWidth)
}
else {
(lastCharProp?.width ?: 0)
}
}
else {
posXbuffer[0] = 0
}
}
catch (e: NullPointerException) {}
return Posmap(posXbuffer, posYbuffer)
}
private fun CodepointSequence.utf16to32(): CodepointSequence {
val seq = CodepointSequence()
var i = 0
while (i < this.size) {
val c = this[i]
// check UTF-16 surrogates
if (i < this.lastIndex && c.isHighSurrogate()) {
val cNext = this[i + 1]
if (!cNext.isLowSurrogate()) {
// replace with Unicode replacement char
seq.add(0x7F) // 0x7F in used internally to display <??> character
}
else {
val H = c
val L = cNext
seq.add(surrogatesToCodepoint(H, L))
i++ // skip next char (guaranteed to be Low Surrogate)
}
}
else {
seq.add(c)
}
i++
}
return seq
}
// basically an Unicode NFD with some additional flavours
private fun CodepointSequence.normalise(): CodepointSequence {
val seq0 = CodepointSequence()
val seq = CodepointSequence()
val seq2 = CodepointSequence()
val seq3 = CodepointSequence()
val seq4 = CodepointSequence()
val dis = this.utf16to32()
var i = 0
// dbgprn("Charsequence: ${dis.map { "${it.toChar()}${ZWNJ.toChar()}" }.joinToString(" ")}")
seq0.add(0)
while (i < dis.size) {
val c = dis[i]
val cNext = dis.getOrElse(i+1) { -1 }
// turn Unicode Devanagari consonants into the internal one
if (c in 0x0915..0x0939 || c in 0x0958..0x095F)
if (cNext == DEVANAGARI_NUQTA) {
seq0.add(c.toDevaInternal().internalDevaAddNukta())
i += 1
}
else {
seq0.add(c.toDevaInternal())
}
else
seq0.add(c)
i += 1
}
seq0.add(0)
i = 0
while (i < seq0.size) {
// val cPrev2 = seq0.getOrElse(i-2) { -1 }
val cPrev = seq0.getOrElse(i-1) { -1 }
val c = seq0[i]
val cNext = seq0.getOrElse(i+1) { -1 }
val cNext2 = seq0.getOrElse(i+2) { -1 }
val cNext3 = seq0.getOrElse(i+3) { -1 }
// can't use regular sliding window as the 'i' value is changed way too often
// LET THE NORMALISATION BEGIN //
// disassemble Hangul Syllables into Initial-Peak-Final encoding
if (c in 0xAC00..0xD7A3) {
val cInt = c - 0xAC00
val indexCho = getWanseongHanChoseong(cInt)
val indexJung = getWanseongHanJungseong(cInt)
val indexJong = getWanseongHanJongseong(cInt) - 1 // no Jongseong will be -1
// these magic numbers only makes sense if you look at the Unicode chart of Hangul Jamo
// https://www.unicode.org/charts/PDF/U1100.pdf
seq.add(0x1100 + indexCho)
seq.add(0x1161 + indexJung)
if (indexJong >= 0) seq.add(0x11A8 + indexJong)
}
// normalise CJK Compatibility area because fuck them
else if (c in 0x3300..0x33FF) {
seq.add(0x7F) // fuck them
}
// add filler to malformed Hangul Initial-Peak-Final
else if (isHangul(c) && !isHangulCompat(c)) {
// possible cases
// IPF: hangul on the sequence
// i: HCF, p: HJF, x: non-hangul
// +cPrev
// v >$<: c
// I >I< -> I p I
// I >F< -> I p F
// I >x< -> I p x
// P >P< -> P i P
// F >P< -> F i P
// F >F< -> F ip F
// x >P< -> x i P
// x >F< -> x ip F
if (isHangulChoseong(cPrev) && (isHangulChoseong(c) || isHangulJongseong(c) || !isHangul(c))) {
seq.add(HJF)
}
else if (isHangulJungseong(cPrev) && isHangulJungseong(c)) {
seq.add(HCF)
}
else if (isHangulJongseong(cPrev)) {
if (isHangulJungseong(c)) seq.add(HCF)
else if (isHangulJongseong(c)) { seq.add(HCF); seq.add(HJF) }
}
else if (!isHangul(cPrev)) {
if (isHangulJungseong(c)) seq.add(HCF)
else if (isHangulJongseong(c)) { seq.add(HCF); seq.add(HJF) }
}
seq.add(c)
}
// 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]!!)
}
// BEGIN of tamil subsystem implementation
// tamil vowel I lig
else if (c == 0xB99 && cNext == TAMIL_I) {
seq.add(0xF00F0); i++
}
else if (c == 0xBAA && cNext == TAMIL_I) {
seq.add(0xF00F1); i++
}
else if (c == 0xBAF && cNext == TAMIL_I) {
seq.add(0xF00F2); i++
}
else if (c == 0xBB2 && cNext == TAMIL_I) {
seq.add(0xF00F3); i++
}
else if (c == 0xBB5 && cNext == TAMIL_I) {
seq.add(0xF00F4); i++
}
else if (c == 0xBB8 && cNext == TAMIL_I) {
seq.add(0xF00F5); i++
}
else if (c == 0xB95 && cNext == 0xBCD && cNext2 == 0xBB7) {
seq.add(TAMIL_KSSA); i += 2
}
// there are TWO ways to represent Tamil SHRII
// https://www.unicode.org/L2/L2018/18054-tamil-shri.txt
else if (c == 0xBB6 && cNext == 0xBCD && cNext2 == 0xBB0 && cNext3 == 0xBC0) {
seq.add(TAMIL_SHRII); i += 3
}
else if (c == 0xBB8 && cNext == 0xBCD && cNext2 == 0xBB0 && cNext3 == 0xBC0) {
seq.add(TAMIL_SHRII); i += 3
}
else if (c == 0xB9F && cNext == 0xBBF) {
seq.add(0xF00C0); i++
}
else if (c == 0xB9F && cNext == 0xBC0) {
seq.add(0xF00C1); i++
}
else if (tamilLigatingConsonants.contains(c) && (cNext == 0xBC1 || cNext == 0xBC2)) {
val it = tamilLigatingConsonants.indexOf(c)
if (cNext == 0xBC1)
seq.add(0xF00C2 + it)
// dbgprn("${c.toString(16)} + ${cNext.toString(16)} replaced with ${(0xF00C2 + it).toString(16)}")
else
seq.add(0xF00D4 + it)
// dbgprn("${c.toString(16)} + ${cNext.toString(16)} replaced with ${(0xF00D4 + it).toString(16)}")
i += 1
}
// END of tamil subsystem implementation
// BEGIN of devanagari string replacer
// Alternative Forms of Cluster-initial RA
else if (c == DEVANAGARI_RA && cNext == ZWJ && cNext2 == DEVANAGARI_VIRAMA && cNext3 == DEVANAGARI_YA) {
seq.add(DEVANAGARI_RYA); i += 3
}
else if (c == DEVANAGARI_RA && cNext == ZWJ && cNext2 == DEVANAGARI_VIRAMA) {
seq.add(DEVANAGARI_RA); i += 2
}
// Unicode Devanagari Rendering Rule R14
else if (c == DEVANAGARI_RA && cNext == DEVANAGARI_U) {
seq.add(DEVANAGARI_SYLL_RU); i += 1
}
else if (c == DEVANAGARI_RA && cNext == DEVANAGARI_UU) {
seq.add(DEVANAGARI_SYLL_RUU); i += 1
}
else if (c == DEVANAGARI_RRA && cNext == DEVANAGARI_U) {
seq.add(DEVANAGARI_SYLL_RRU); i += 1
}
else if (c == DEVANAGARI_RRA && cNext == DEVANAGARI_UU) {
seq.add(DEVANAGARI_SYLL_RRUU); i += 1
}
else if (c == DEVANAGARI_HA && cNext == DEVANAGARI_U) {
seq.add(DEVANAGARI_SYLL_HU); i += 1
}
else if (c == DEVANAGARI_HA && cNext == DEVANAGARI_UU) {
seq.add(DEVANAGARI_SYLL_HUU); i += 1
}
// Unicode Devanagari Rendering Rule R2-R4
// Unicode Devanagari Rendering Rule R6-R8
// (this must precede the ligaturing-machine coded on the 2nd pass, otherwise the rules below will cause undesirable effects)
else if (devanagariConsonants.contains(c) && cNext == DEVANAGARI_VIRAMA && cNext2 == DEVANAGARI_RA) {
seq.addAll(ligateIndicConsonants(c, cNext2))
i += 2
}
// Unicode Devanagari Rendering Rule R5
else if (c == DEVANAGARI_RRA && cNext == DEVANAGARI_VIRAMA || c == DEVANAGARI_RA && cNext == DEVANAGARI_VIRAMA && cNext2 == ZWJ) {
seq.add(DEVANAGARI_EYELASH_RA)
i += 1
}
// END of devanagari string replacer
// rearrange {letter, before-and-after diacritics} as {before-diacritics, letter, after-diacritics}
else if (glyphProps[c]?.stackWhere == GlyphProps.STACK_BEFORE_N_AFTER) {
val diacriticsProp = glyphProps[c]!!
// seq.add(c) // base char is added by previous iteration, AS WE'RE LOOKING AT 'c' not 'cNext'
seq.add(diacriticsProp.extInfo[0]) // align before
seq.add(diacriticsProp.extInfo[1]) // align after
// The order may seem "wrong" but trust me it'll be corrected by the swapping code below
// dbgprn("B&A: ${cNext.charInfo()} replaced with ${diacriticsProp.extInfo[0].toString(16)} ${c.toString(16)} ${diacriticsProp.extInfo[1].toString(16)}")
}
// U+007F is DEL originally, but dis font stores bitmap of Replacement Character (U+FFFD)
// to dis position. dis line will replace U+FFFD into U+007F.
else {
// dbgprn(" nop")
seq.add(c)
}
i++
}
// BEGIN of Devanagari String Replacer 2 (lookbehind type)
i = 0
while (i < seq.size) {
val cPrev2 = seq.getOrElse(i-2) { -1 }
val cPrev = seq.getOrElse(i-1) { -1 }
val c = seq[i]
// Devanagari Ligations (Lookbehind)
if (devanagariConsonants.contains(cPrev2) && cPrev == DEVANAGARI_VIRAMA && devanagariConsonants.contains(c)) {
i -= 2
repeat(3) { seq.removeAt(i) }
val ligature = ligateIndicConsonants(cPrev2, c)
ligature.forEachIndexed { index, char ->
seq.add(i + index, char)
}
i += ligature.size
}
i++
}
// END of Devanagari String Replacer 2
// second scan
i = 0
while (i < seq.size) {
// swap position of {letter, diacritics that comes before the letter}
// reposition [cluster, align-before, align-after] into [align-before, cluster, align-after]
if (i > 0 && (glyphProps[seq[i]] ?: nullProp).alignWhere == GlyphProps.ALIGN_BEFORE) {
val vowel = seq[i]
// dbgprn("Vowel realign: index $i, ${vowel.charInfo()}")
if (isDevanagari(vowel)) {
// scan for the consonant cluster backwards
// [not ligature glyphs] h h h h h c l r
var scanCounter = 1
while (true) {
val cAtCurs = seq.getOrElse(i - scanCounter) { -1 }
// dbgprn(" scan back $scanCounter, char: ${cAtCurs.charInfo()}")
if (scanCounter == 1 && devanagariConsonantsNonLig.contains(cAtCurs) ||
scanCounter > 1 && devanariConsonantsHalfs.contains(cAtCurs))
scanCounter += 1
else
break
} // scanCounter points at the terminator. the left-vowel must be placed at (i - scanCounter + 1)
seq.removeAt(i)
seq.add(i - scanCounter + 1, vowel)
}
else {
val t = seq[i - 1]
seq[i - 1] = seq[i]
seq[i] = t
}
}
i++
}
// continuous ligation
i = 0
while (i < seq.size) {
val cPrev = seq.getOrElse(i-1) { -1 }
val c = seq[i]
val cNext = seq.getOrElse(i+1) { -1 }
// ligate IPA intonation graph
if (c in 0x2E5..0x2E9 && cNext in 0x2E5..0x2E9) {
seq2.add(0x200A)
seq2.add(getIntonationGraph(c-0x2E5, cNext-0x2E5))
}
else if (cPrev in 0x2E5..0x2E9 && c in 0x2E5..0x2E9 && cNext !in 0x2E5..0x2E9) {
seq2.add(0xFFE39)
}
else {
seq2.add(c)
}
i++
}
// unpack replacewith
// also ligate IPA intonation graph
seq2.forEach {
if (glyphProps[it]?.isPragma("replacewith") == true) {
// dbgprn("Replacing ${it.charInfo()} into: ${glyphProps[it]!!.extInfo.map { it.toString(16) }.joinToString()}")
glyphProps[it]!!.forEachExtInfo {
if (it != 0) seq3.add(it)
}
}
else {
seq3.add(it)
}
}
// reposition devanagari RA-initials into RAsup
i = 0
dbgprnLig("seq3 = ${seq3.map { "${it.toCh()}${ZWNJ.toChar()}" }.joinToString(" ")}")
val yankedCharacters = Stack<Pair<Int, CodePoint>>() // Stack of <Position, CodePoint>; codepoint use -1 if not applicable
var yankedDevanagariRaStatus = intArrayOf(0,0) // 0: none, 1: consonants, 2: virama, 3: vowel for this syllable
fun changeRaStatus(n: Int) {
yankedDevanagariRaStatus[0] = yankedDevanagariRaStatus[1]
yankedDevanagariRaStatus[1] = n
}
fun resetRaStatus() {
yankedDevanagariRaStatus[0] = 0
yankedDevanagariRaStatus[1] = 0
}
fun emptyOutYanked() {
while (!yankedCharacters.empty()) {
val poppedChar = yankedCharacters.pop()
if (poppedChar.second == DEVANAGARI_RA)
if (seq4.last() in devanagariSuperscripts)
seq4.add(DEVANAGARI_RA_SUPER_COMPLEX)
else
seq4.add(DEVANAGARI_RA_SUPER)
else
seq4.add(yankedCharacters.pop().second)
}
}
while (i < seq3.size) {
val cPrev2 = seq3.getOrElse(i-2) { -1 }
val cPrev = seq3.getOrElse(i-1) { -1 }
val c = seq3[i]
val cNext = seq3.getOrElse(i+1) { -1 }
val cNext2 = seq3.getOrElse(i+2) { -1 }
dbgprnLig(" र${yankedDevanagariRaStatus[1]} Chars: ${cPrev2.toCh()}${ZWNJ.toChar()} ${cPrev.toCh()}${ZWNJ.toChar()} [ ${c.toCh()}${ZWNJ.toChar()} ] ${cNext.toCh()}${ZWNJ.toChar()} ${cNext2.toCh()}${ZWNJ.toChar()}")
// in Regex: RA vir VL* (C vir C (vir C)*)? VR* ᴿ [not V && not vir]
// TERMINATOR: right vowel | non-half consonant before any consonants
if (yankedDevanagariRaStatus[1] == 0 && c == DEVANAGARI_RA && cNext == DEVANAGARI_VIRAMA) {
dbgprnLig(" Yanking RA (0 -> 1)")
yankedCharacters.push(i to c)
changeRaStatus(1)
}
else if (yankedDevanagariRaStatus[1] == 1 && yankedDevanagariRaStatus[0] == 0 && c == DEVANAGARI_VIRAMA) {
dbgprnLig(" First Virama (1 -> 2)")
changeRaStatus(2)
}
else if (yankedDevanagariRaStatus[1] == 2 && devanagariConsonants.contains(c)) {
dbgprnLig(" Consonants after Virama (2 -> 1)")
seq4.add(c)
changeRaStatus(1)
}
else if (yankedDevanagariRaStatus[1] in listOf(1,3) && devanariConsonantsHalfs.contains(c)) {
dbgprnLig(" Consonants Half Form (${yankedDevanagariRaStatus[1]} -> 3)")
seq4.add(c)
changeRaStatus(3)
}
else if (yankedDevanagariRaStatus[1] == 5 && devanagariConsonants.contains(c)) {
dbgprnLig(" Consonants after Left Vowel (5 -> 1)")
seq4.add(c)
changeRaStatus(1)
}
else if ((yankedDevanagariRaStatus[1] > 0) && devanagariRightVowels.contains(c)) {
dbgprnLig(" Right Vowels (${yankedDevanagariRaStatus[1]} -> 4)")
seq4.add(c)
changeRaStatus(4)
}
else if ((yankedDevanagariRaStatus[1] in 1..3) && devanagariVowels.contains(c)) {
dbgprnLig(" Left Vowels (${yankedDevanagariRaStatus[1]} -> 5)")
seq4.add(c)
changeRaStatus(5)
}
else if (yankedDevanagariRaStatus[1] > 0 && devanariConsonantsHalfs.contains(cPrev) && devanagariConsonants.contains(c)) {
dbgprnLig(" Consonant Tail after Halfs (${yankedDevanagariRaStatus[1]} -> 9)")
seq4.add(c)
changeRaStatus(9)
}
// -- termination or illegal state for Devanagari RA
else if (yankedDevanagariRaStatus[1] > 0) {
dbgprnLig(" Popping out RAsup")
yankedCharacters.pop()
if (seq4.last() in devanagariSuperscripts)
seq4.add(DEVANAGARI_RA_SUPER_COMPLEX)
else
seq4.add(DEVANAGARI_RA_SUPER)
resetRaStatus()
i-- // scan this character again next time
}
else if (!isDevanagari(c) && !yankedCharacters.empty()) {
emptyOutYanked()
seq4.add(c)
resetRaStatus()
}
else {
seq4.add(c)
}
i++
}
emptyOutYanked()
seq4.add(0) // add dummy terminator
// println(seq4.joinToString(" "))
// replace devanagari I/II with variants
i = 0
var lenacc = 0
while (i < seq4.size) {
val cPrev = seq4.getOrElse(i - 1) { -1 }
val c = seq4[i]
if (c == DEVANAGARI_I) {
var j = 1
var w = 0
while (true) {
val cj = seq4.getOrElse(i + j) { -1 }
if (j > 3 || cj !in 0xF0140..0xF04FF)
break
if (cj in devanagariPresentationConsonants || cj in devanagariPresentationConsonantsWithRa) {
w += glyphProps[cj]?.diacriticsAnchors?.get(0)?.x ?: 0
break
}
else if (cj in devanagariPresentationConsonantsHalf || cj in devanagariPresentationConsonantsWithRaHalf) {
w += glyphProps[cj]?.width ?: 0
j += 1
}
else
break
}
// println("length: $w, consonant count: $j")
seq4[i] = (w+2).coerceIn(6,21) - 6 + 0xF0110
if (j > 1) i += j
}
else if (c == DEVANAGARI_II &&
(cPrev in devanagariPresentationConsonants || cPrev in devanagariPresentationConsonantsWithRa)) {
val w = ((glyphProps[cPrev]?.width ?: 0) - (glyphProps[cPrev]?.diacriticsAnchors?.get(0)?.x ?: 0))
// println("length: $w")
seq4[i] = 0xF012F - ((w+1).coerceIn(4,19) - 4)
}
i++
}
return seq4
}
private fun dbgprnLig(i: Any) { if (false) println("[${this.javaClass.simpleName}] $i") }
private fun CodePoint.toCh() = if (this >= 0xF0000) this.puaToUni() else if (this < 65536) "${this.toChar()}" else this.toHex()
private val devaSyll = listOf("K","KH","G","GH","NG","C","CH","J","JH","NY","TT","TTH","DD","DDH","NN","T",
"TH","D","DH","N","NNN","P","PH","B","BH","M","Y","R","RR","L","LL","LLL",
"V","SH","SS","S","H","Q","KHH","GHH","Z","DDDH","RH","F","YY","x","x","x",
"D.R.Y","K.SS","J.NY","T.T","N.T","N.N","S.P","SS.V","SH.C","SH.N","SH.V","x","x","x","x","x",
"D.G","D.GH","D.D","D.DH","D.N","D.SS","D.BH","D.M","D.Y","D.V","mDD.DD","mDD.DDH","K.T","GH.TT","GH.TTH","GH.DDH",
"P.TT","P.TTH","P.DDH","SS.TT","SS.TTH","SS.DDH","H.NN","H.T","H.M","H.Y","H.L","H.V","x","x","x","x",
"DD.G","DD.BH","NG.G","NG.V","NG.M","CH.V","TT.TT","TT.TTH","TT.V","TTH.TTH","TTH.V","DD.DD","DD.DDH","DD.V","DDH.DDH","DDH.V"
)
// nuke this function when the time that compiled bytecode exceeds 64 kb finally arrives
private fun CodePoint.puaToUni() = when (this) {
0xF0100 -> "Ru"
0xF0101 -> "Ruu"
0xF0102 -> "RRu"
0xF0103 -> "RRuu"
0xF0104 -> "Hu"
0xF0105 -> "Huu"
0xF010B -> "ᴿᵃ"
0xF024C -> "Resh"
in 0xF0140 until 0xF0140+devaSyll.size -> devaSyll[this - 0xF0140]
in 0xF0230 until 0xF0230+devaSyll.size -> devaSyll[this - 0xF0230] + "ʰ"
in 0xF0320 until 0xF0320+devaSyll.size -> devaSyll[this - 0xF0320] + ".R"
in 0xF0410 until 0xF0410+devaSyll.size -> devaSyll[this - 0xF0410] + ".Rʰ"
else -> this.toHex()
}
/** Takes input string, do normalisation, and returns sequence of codepoints (Int)
*
* UTF-16 to ArrayList of Int. UTF-16 is because of Java
* Note: CharSequence IS a String. java.lang.String implements CharSequence.
*
* Note to Programmer: DO NOT USE CHAR LITERALS, CODE EDITORS WILL CHANGE IT TO SOMETHING ELSE !!
*/
private fun CharSequence.toCodePoints(): CodepointSequence {
val seq = CodepointSequence()
this.forEach { seq.add(it.toInt()) }
return seq.normalise()
}
private fun surrogatesToCodepoint(var0: Int, var1: Int): Int {
return (var0.toInt() shl 10) + var1.toInt() + -56613888
}
/**
* Edits the given pixmap so that it would have a shadow on it.
*
* This function must be called `AFTER buildWidthTable()`
*
* The pixmap must be mutable (beware of concurrentmodificationexception).
*/
private fun makeShadowForSheet(pixmap: Pixmap) {
for (y in 0..pixmap.height - 2) {
for (x in 0..pixmap.width - 2) {
val pxNow = pixmap.getPixel(x, y) // RGBA8888
// if you have read CONTRIBUTING.md, it says the actual glyph part MUST HAVE alpha of 255.
// but some of the older spritesheets still have width tag drawn as alpha of 255.
// therefore we still skip every x+15th pixels
if (x % 16 != 15) {
if (pxNow and 0xFF == 255) {
val pxRight = (x + 1) to y
val pxBottom = x to (y + 1)
val pxBottomRight = (x + 1) to (y + 1)
val opCue = listOf(pxRight, pxBottom, pxBottomRight)
opCue.forEach {
if (pixmap.getPixel(it.first, it.second) and 0xFF == 0) {
pixmap.drawPixel(it.first, it.second,
// the shadow has the same colour, but alpha halved
pxNow.and(0xFFFFFF00.toInt()).or(0x7F)
)
}
}
}
}
}
}
}
/**
* Edits the given pixmap so that it would have a shadow on it.
*
* Meant to be used to give shadow to a linotype (typeset-finished line of pixmap)
*
* The pixmap must be mutable (beware of concurrentmodificationexception).
*/
private fun makeShadow(pixmap: Pixmap?) {
if (pixmap == null) return
pixmap.blending = Pixmap.Blending.None
// TODO when semitransparency is needed (e.g. anti-aliased)
// make three more pixmap (pixmap 2 3 4)
// translate source image over new pixmap, shift the texture to be a shadow
// draw (3, 4) -> 2, px by px s.t. only overwrites RGBA==0 pixels in 2
// for all pxs in 2, do:
// halve the alpha in 2
// draw 1 -> 2 s.t. only RGBA!=0-px-in-1 is drawn on 2; draw by overwrite
// copy 2 -> 1 px by px
// ---------------------------------------------------------------------------
// this is under assumption that new pixmap is always all zero
// it is possible the blending in the pixmap is bugged
//
// for now, no semitransparency (in colourcode && spritesheet)
val jobQueue = if (!invertShadow) arrayOf(
1 to 0,
0 to 1,
1 to 1
) else arrayOf(
-1 to 0,
0 to -1,
-1 to -1
)
jobQueue.forEach {
for (y in (if (invertShadow) 1 else 0) until (if (invertShadow) pixmap.height else pixmap.height - 1)) {
for (x in (if (invertShadow) 1 else 0) until (if (invertShadow) pixmap.width else pixmap.width - 1)) {
val pixel = pixmap.getPixel(x, y) // RGBA8888
val newPixel = pixmap.getPixel(x + it.first, y + it.second)
val newColor = Color(pixel)
newColor.a *= shadowAlpha
if (shadowAlphaPremultiply) {
newColor.r *= shadowAlpha
newColor.g *= shadowAlpha
newColor.b *= shadowAlpha
}
// in the current version, all colour-coded glyphs are guaranteed
// to be opaque
if (pixel and 0xFF == 0xFF && newPixel and 0xFF == 0) {
pixmap.drawPixel(x + it.first, y + it.second, newColor.toRGBA8888())
}
}
}
}
}
/***
* @param col RGBA8888 representation
*/
private fun Pixmap.drawPixmap(pixmap: Pixmap, xPos: Int, yPos: Int, col: Int) {
for (y in 0 until pixmap.height) {
for (x in 0 until pixmap.width) {
val pixel = pixmap.getPixel(x, y) // Pixmap uses RGBA8888, while Color uses ARGB. What the fuck?
val newPixel = pixel colorTimes col
this.drawPixel(xPos + x, yPos + y, newPixel)
}
}
}
private fun Color.toRGBA8888() =
(this.r * 255f).toInt().shl(24) or
(this.g * 255f).toInt().shl(16) or
(this.b * 255f).toInt().shl(8) or
(this.a * 255f).toInt()
/**
* RGBA8888 representation
*/
private fun Int.forceOpaque() = this.and(0xFFFFFF00.toInt()) or 0xFF
private infix fun Int.colorTimes(other: Int): Int {
val thisBytes = IntArray(4) { this.ushr(it * 8).and(255) }
val otherBytes = IntArray(4) { other.ushr(it * 8).and(255) }
return (thisBytes[0] times256 otherBytes[0]) or
(thisBytes[1] times256 otherBytes[1]).shl(8) or
(thisBytes[2] times256 otherBytes[2]).shl(16) or
(thisBytes[3] times256 otherBytes[3]).shl(24)
}
private infix fun Int.times256(other: Int) = multTable255[this][other]
private val multTable255 = Array(256) { left ->
IntArray(256) { right ->
(255f * (left / 255f).times(right / 255f)).roundToInt()
}
}
/** High surrogate comes before the low. */
private fun Char.isHighSurrogate() = (this.toInt() in 0xD800..0xDBFF)
private fun Int.isHighSurrogate() = (this.toInt() in 0xD800..0xDBFF)
/** CodePoint = 0x10000 + (H - 0xD800) * 0x400 + (L - 0xDC00) */
private fun Char.isLowSurrogate() = (this.toInt() in 0xDC00..0xDFFF)
private fun Int.isLowSurrogate() = (this.toInt() in 0xDC00..0xDFFF)
var interchar = 0
var scale = 1
set(value) {
if (value > 0) field = value
else throw IllegalArgumentException("Font scale cannot be zero or negative (input: $value)")
}
fun toColorCode(argb4444: Int): String = TerrarumSansBitmap.toColorCode(argb4444)
fun toColorCode(r: Int, g: Int, b: Int, a: Int = 0x0F): String = TerrarumSansBitmap.toColorCode(r, g, b, a)
val noColorCode = toColorCode(0x0000)
val charsetOverrideDefault = Character.toChars(CHARSET_OVERRIDE_DEFAULT).toSurrogatedString()
val charsetOverrideBulgarian = Character.toChars(CHARSET_OVERRIDE_BG_BG).toSurrogatedString()
val charsetOverrideSerbian = Character.toChars(CHARSET_OVERRIDE_SR_SR).toSurrogatedString()
// randomiser effect hash ONLY
private val hashBasis = -3750763034362895579L
private val hashPrime = 1099511628211L
private var hashAccumulator = hashBasis
fun getHash(char: Int): Long {
hashAccumulator = hashAccumulator xor char.toLong()
hashAccumulator *= hashPrime
return hashAccumulator
}
fun resetHash(charSeq: CharSequence, x: Float, y: Float) {
hashAccumulator = hashBasis
getHash(charSeq.crc32())
getHash(x.toRawBits())
getHash(y.toRawBits())
}
fun CodepointSequence.getHash(): Long {
val hashBasis = -3750763034362895579L
val hashPrime = 1099511628211L
var hashAccumulator = hashBasis
try {
this.forEach {
hashAccumulator = hashAccumulator xor it.toLong()
hashAccumulator *= hashPrime
}
}
catch (e: NullPointerException) {
System.err.println("CodepointSequence is null?!")
e.printStackTrace()
}
return hashAccumulator
}
private fun CharSequence.crc32(): Int {
val crc = CRC32()
this.forEach {
val it = it.toInt()
val b1 = it.shl(8).and(255)
val b2 = it.and(255)
crc.update(b1)
crc.update(b2)
}
return crc.value.toInt()
}
fun CodePoint.isLowHeight() = glyphProps[this]?.isLowheight == true
private fun getKerning(prevChar: CodePoint, thisChar: CodePoint): Int {
val maskL = glyphProps[prevChar]?.kerningMask
val maskR = glyphProps[thisChar]?.kerningMask
return if (glyphProps[prevChar]?.hasKernData == true && glyphProps[thisChar]?.hasKernData == true) {
kerningRules.forEachIndexed { index, it ->
if (it.first.matches(maskL!!) && it.second.matches(maskR!!)) {
val contraction = if (glyphProps[prevChar]?.isKernYtype == true || glyphProps[thisChar]?.isKernYtype == true) it.yy else it.bb
// dbgprn("Kerning rule match #${index+1}: ${prevChar.toChar()}${thisChar.toChar()}, Rule:${it.first.s} ${it.second.s}; Contraction: $contraction")
return -contraction
}
}
return 0
}
else 0
}
private fun CodePoint.toHalfFormOrNull(): CodePoint? {
if (this in devanagariBaseConsonantsExtended) return null
if (this < 0xF0000) throw IllegalArgumentException("Normalise consonants to internal encoding first!")
if (this == DEVANAGARI_RYA) return DEVANAGARI_HALF_RYA
if (this == MARWARI_LIG_DD_Y) return MARWARI_HALFLIG_DD_Y
if (this == DEVANAGARI_OPEN_YA) return DEVANAGARI_OPEN_HALF_YA
(this + 240).let {
if (glyphProps[it]?.isIllegal != false)
return null
else
return it
}
}
// TODO use proper version of Virama for respective scripts
private fun CodePoint.toHalfFormOrVirama(): List<CodePoint> = this.toHalfFormOrNull().let {
// println("[TerrarumSansBitmap] toHalfForm ${this.charInfo()} = ${it?.charInfo()}")
if (it == null) listOf(this, DEVANAGARI_VIRAMA) else listOf(it)
}
// TODO use proper version of Virama for respective scripts
private fun toRaAppended(c: CodePoint): List<CodePoint> {
if (c == MARWARI_DD) return listOf(MARWARI_LIG_DD_R)
(c + 480).let {
if (glyphProps[it]?.isIllegal != false)
return listOf(c, DEVANAGARI_VIRAMA, DEVANAGARI_RA)
else
return listOf(it)
}
}
private fun ligateIndicConsonants(c1: CodePoint, c2: CodePoint, rec: Int = 0): List<CodePoint> {
// dbgprn("Indic ligation${if (rec > 0) "$rec" else ""} ${c1.toCh()} - ${c2.toCh()}")
if (c1 != DEVANAGARI_RA && c2 == DEVANAGARI_RA) return toRaAppended(c1) // Devanagari @.RA
// when the font try to ligate KSSR, the arguments are K and SSR (for some reason I don't understand).
// This method drops last Ra on c2 and then recursively ligates the remainder KSS, finally
// attaches Ra on the conjunct and returns the results.
else if (c1 != DEVANAGARI_RA && isRaAppended(c2)) {
// dbgprn("Ends with RA, trying Rlig...")
val c12WithNoRa = ligateIndicConsonants(c1, c2 - 480, rec + 1)
if (c12WithNoRa.size == 1) {
val c12andRa = toRaAppended(c12WithNoRa[0])
if (c12andRa.size == 1) {
// dbgprn("Rligation successful: ${c12WithNoRa[0].toCh()} + R = ${c12andRa[0].toCh()}")
return c12andRa
}
// dbgprn("Rligation failed: ${c12WithNoRa[0].toCh()} + R = ${c12WithNoRa.map { it.toCh() }.joinToString(" + ")}")
}
// only return when ligation is possible, otherwise let the process continue so that
// Ka-Vir-SSRa form could be returned
// else dbgprn("Ligation failed, trying ${c1.toCh()} - ${c2.toCh()}")
}
// dbgprn("continue$rec: ${c1.toCh()} - ${c2.toCh()}")
return when (c1) {
0x0915.toDevaInternal() -> /* Devanagari KA */ when (c2) {
0x0924.toDevaInternal() -> listOf(DEVANAGARI_LIG_K_T) // K.T
0x0937.toDevaInternal() -> listOf(DEVANAGARI_LIG_K_SS) // K.SS
DEVANAGARI_YA -> c1.toHalfFormOrVirama() + DEVANAGARI_OPEN_YA // K.Y
else -> c1.toHalfFormOrVirama() + c2
}
0x0918.toDevaInternal() -> /* Devanagari GHA */ when (c2) {
0x091F.toDevaInternal() -> listOf(0xF01BD) // GH.TT
0x0920.toDevaInternal() -> listOf(0xF01BE) // GH.TTH
0x0922.toDevaInternal() -> listOf(0xF01BF) // GH.DDH
else -> c1.toHalfFormOrVirama() + c2
}
0x0919.toDevaInternal() -> /* Devanagari NGA */ when (c2) {
0x0928.toDevaInternal() -> listOf(0xF01CD) // NG.N
0x0915.toDevaInternal() -> listOf(0xF01CE) // NG.K
0x0916.toDevaInternal() -> listOf(0xF01CF) // NG.KH
0x0917.toDevaInternal() -> listOf(0xF01D2) // NG.G
0x0918.toDevaInternal() -> listOf(0xF01D3) // NG.GH
0x092E.toDevaInternal() -> listOf(0xF01D4) // NG.M
DEVANAGARI_YA -> c1.toHalfFormOrVirama() + DEVANAGARI_OPEN_YA // NG.Y
else -> c1.toHalfFormOrVirama() + c2
}
0x091B.toDevaInternal() -> /* Devanagari CHA */ when (c2) {
DEVANAGARI_VA -> listOf(0xF01D5) // CH.V
DEVANAGARI_YA -> c1.toHalfFormOrVirama() + DEVANAGARI_OPEN_YA // CH.Y
else -> c1.toHalfFormOrVirama() + c2
}
0x091C.toDevaInternal() -> /* Devanagari JA */ when (c2) {
0x091E.toDevaInternal() -> listOf(DEVANAGARI_LIG_J_NY) // J.NY
DEVANAGARI_YA -> listOf(DEVANAGARI_LIG_J_Y) // J.Y
DEVANAGARI_LIG_J_Y -> listOf(DEVANAGARI_LIG_J_J_Y) // J.J.Y
else -> c1.toHalfFormOrVirama() + c2
}
0x091F.toDevaInternal() -> /* Devanagari TTA */ when (c2) {
0x0915.toDevaInternal() -> listOf(0xF01E0) // TT.K
0x092A.toDevaInternal() -> listOf(0xF01E1) // TT.P
0x0936.toDevaInternal() -> listOf(0xF01E2) // TT.SH
0x0938.toDevaInternal() -> listOf(0xF01E3) // TT.S
0x091F.toDevaInternal() -> listOf(0xF01D6) // TT.TT
0x0920.toDevaInternal() -> listOf(0xF01D7) // TT.TTH
DEVANAGARI_VA -> listOf(0xF01D8) // TT.V
DEVANAGARI_YA -> c1.toHalfFormOrVirama() + DEVANAGARI_OPEN_YA // TT.Y
else -> c1.toHalfFormOrVirama() + c2
}
0x0920.toDevaInternal() -> /* Devanagari TTHA */ when (c2) {
0x0920.toDevaInternal() -> listOf(0xF01D9) // TTH.TTH
DEVANAGARI_VA -> listOf(0xF01DA) // TTH.V
DEVANAGARI_YA -> c1.toHalfFormOrVirama() + DEVANAGARI_OPEN_YA // TTH.Y
else -> c1.toHalfFormOrVirama() + c2
}
0x0921.toDevaInternal() -> /* Devanagari DDA */ when (c2) {
0x0921.toDevaInternal() -> listOf(0xF01DB) // DD.DD
0x0922.toDevaInternal() -> listOf(0xF01DC) // DD.DDH
0x0917.toDevaInternal() -> listOf(0xF01D0) // DD.G
0x092D.toDevaInternal() -> listOf(0xF01D1) // DD.BH
DEVANAGARI_VA -> listOf(0xF01DD) // DD.V
DEVANAGARI_YA -> c1.toHalfFormOrVirama() + DEVANAGARI_OPEN_YA // DD.Y
else -> c1.toHalfFormOrVirama() + c2
}
0x0922.toDevaInternal() -> /* Devanagari DDHA */ when (c2) {
0x0922.toDevaInternal() -> listOf(0xF01DE) // DDH.DDH
DEVANAGARI_VA -> listOf(0xF01DF) // DDH.V
DEVANAGARI_YA -> c1.toHalfFormOrVirama() + DEVANAGARI_OPEN_YA // DDH.Y
else -> c1.toHalfFormOrVirama() + c2
}
0x0924.toDevaInternal() -> /* Devanagari TA */ when (c2) {
0x0924.toDevaInternal() -> listOf(DEVANAGARI_LIG_T_T) // T.T
else -> c1.toHalfFormOrVirama() + c2
}
0x0926.toDevaInternal() -> /* Devanagari DA */ when (c2) {
0x0917.toDevaInternal() -> listOf(0xF01B0) // D.G
0x0918.toDevaInternal() -> listOf(0xF01B1) // D.GH
0x0926.toDevaInternal() -> listOf(0xF01B2) // D.D
0x0927.toDevaInternal() -> listOf(0xF01B3) // D.DH
0x0928.toDevaInternal() -> listOf(0xF01B4) // D.N
0x092C.toDevaInternal() -> listOf(0xF01B5) // D.B
0x092D.toDevaInternal() -> listOf(0xF01B6) // D.BH
0x092E.toDevaInternal() -> listOf(0xF01B7) // D.M
0x092F.toDevaInternal() -> listOf(0xF01B8) // D.Y
0x0935.toDevaInternal() -> listOf(0xF01B9) // D.V
else -> c1.toHalfFormOrVirama() + c2
}
0x0928.toDevaInternal() -> /* Devanagari NA */ when (c2) {
0x0924.toDevaInternal() -> listOf(DEVANAGARI_LIG_N_T) // N.T
0x0928.toDevaInternal() -> listOf(DEVANAGARI_LIG_N_N) // N.N
else -> c1.toHalfFormOrVirama() + c2
}
0x092A.toDevaInternal() -> /* Devanagari PA */ when (c2) {
0x091F.toDevaInternal() -> listOf(0xF01C0) // P.TT
0x0920.toDevaInternal() -> listOf(0xF01C1) // P.TTH
0x0922.toDevaInternal() -> listOf(0xF01C2) // P.DDH
else -> c1.toHalfFormOrVirama() + c2
}
0x0936.toDevaInternal() -> /* Devanagari SHA */ when (c2) {
0x091A.toDevaInternal() -> listOf(DEVANAGARI_LIG_SH_C) // SH.C
0x0928.toDevaInternal() -> listOf(DEVANAGARI_LIG_SH_N) // SH.N
0x0932.toDevaInternal() -> listOf(DEVANAGARI_ALT_HALF_SHA, c2) // SH.L
0x0935.toDevaInternal() -> listOf(DEVANAGARI_LIG_SH_V) // SH.V
else -> c1.toHalfFormOrVirama() + c2
}
0x0937.toDevaInternal() -> /* Devanagari SSA */ when (c2) {
0x091F.toDevaInternal() -> listOf(0xF01C3) // SS.TT
0x0920.toDevaInternal() -> listOf(0xF01C4) // SS.TTH
0x0922.toDevaInternal() -> listOf(0xF01C5) // SS.DDH
0x092A.toDevaInternal() -> listOf(DEVANAGARI_LIG_SS_P) // SS.P
else -> c1.toHalfFormOrVirama() + c2
}
0x0938.toDevaInternal() -> /* Devanagari SA */ when (c2) {
0x0935.toDevaInternal() -> listOf(DEVANAGARI_LIG_S_V) // S.V
else -> c1.toHalfFormOrVirama() + c2
}
0x0939.toDevaInternal() -> /* Devanagari HA */ when (c2) {
0x0923.toDevaInternal() -> listOf(0xF01C6) // H.NN
0x0928.toDevaInternal() -> listOf(0xF01C7) // H.N
0x092E.toDevaInternal() -> listOf(0xF01C8) // H.M
0x092F.toDevaInternal() -> listOf(0xF01C9) // H.Y
0x0932.toDevaInternal() -> listOf(0xF01CA) // H.L
0x0935.toDevaInternal() -> listOf(0xF01CB) // H.V
else -> c1.toHalfFormOrVirama() + c2
}
0x0978 -> /* Marwari DDA */ when (c2) {
0x0978 -> listOf(MARWARI_LIG_DD_DD) // DD.DD
0x0922.toDevaInternal() -> listOf(MARWARI_LIG_DD_DDH) // DD.DDH
DEVANAGARI_YA -> listOf(MARWARI_LIG_DD_Y) // DD.Y
else -> c1.toHalfFormOrVirama() + c2
}
0xF0331 -> /* Devanagari D.RA */ when (c2) {
DEVANAGARI_YA -> c1.toHalfFormOrVirama() + DEVANAGARI_OPEN_YA // D.R+Y
else -> c1.toHalfFormOrVirama() + c2
}
in (0xF01B0..0xF01DF) + (0xF0390..0xF03BF) -> when (c2) {
DEVANAGARI_YA -> c1.toHalfFormOrVirama() + DEVANAGARI_OPEN_YA
else -> c1.toHalfFormOrVirama() + c2
}
else -> c1.toHalfFormOrVirama() + c2 // TODO use proper version of Virama for respective scripts
}
}
companion object {
private fun Boolean.toSign() = if (this) 1 else -1
/**
* lowercase AND the height is equal to x-height (e.g. lowercase B, D, F, H, K, L, ... does not count
*/
data class ShittyGlyphLayout(val textBuffer: CodepointSequence, val linotype: Texture, val width: Int)
data class TextCacheObj(val hash: Long, val glyphLayout: ShittyGlyphLayout?): Comparable<TextCacheObj> {
fun dispose() {
glyphLayout?.linotype?.dispose()
}
override fun compareTo(other: TextCacheObj): Int {
return (this.hash - other.hash).sign
}
}
data class Posmap(val x: IntArray, val y: IntArray) {
val width = x.maxOf { it }
}
private const val HCF = 0x115F
private const val HJF = 0x1160
internal const val JUNG_COUNT = 21
internal const val JONG_COUNT = 28
internal const val W_ASIAN_PUNCT = 10
internal const val W_HANGUL_BASE = 13
internal const val W_KANA = 12
internal const val W_UNIHAN = 16
internal const val W_LATIN_WIDE = 9 // width of regular letters
internal const val W_VAR_INIT = 15 // it assumes width of 15 regardless of the tagged width
internal const val W_WIDEVAR_INIT = 31 // it assumes width of 31 regardless of the tagged width
internal const val HGAP_VAR = 1
internal const val H = 20
internal const val H_UNIHAN = 16
internal const val H_DIACRITICS = 3
internal const val H_STACKUP_LOWERCASE_SHIFTDOWN = 4
internal const val H_OVERLAY_LOWERCASE_SHIFTDOWN = 2
internal const val SIZE_CUSTOM_SYM = 18
internal const val SHEET_ASCII_VARW = 0
internal const val SHEET_HANGUL = 1
internal const val SHEET_EXTA_VARW = 2
internal const val SHEET_EXTB_VARW = 3
internal const val SHEET_KANA = 4
internal const val SHEET_CJK_PUNCT = 5
internal const val SHEET_UNIHAN = 6
internal const val SHEET_CYRILIC_VARW = 7
internal const val SHEET_HALFWIDTH_FULLWIDTH_VARW = 8
internal const val SHEET_UNI_PUNCT_VARW = 9
internal const val SHEET_GREEK_VARW = 10
internal const val SHEET_THAI_VARW = 11
internal const val SHEET_HAYEREN_VARW = 12
internal const val SHEET_KARTULI_VARW = 13
internal const val SHEET_IPA_VARW = 14
internal const val SHEET_RUNIC = 15
internal const val SHEET_LATIN_EXT_ADD_VARW= 16
internal const val SHEET_CUSTOM_SYM = 17
internal const val SHEET_BULGARIAN_VARW = 18
internal const val SHEET_SERBIAN_VARW = 19
internal const val SHEET_TSALAGI_VARW = 20
internal const val SHEET_PHONETIC_EXT_VARW = 21
internal const val SHEET_DEVANAGARI_VARW=22
internal const val SHEET_KARTULI_CAPS_VARW = 23
internal const val SHEET_DIACRITICAL_MARKS_VARW = 24
internal const val SHEET_GREEK_POLY_VARW = 25
internal const val SHEET_EXTC_VARW = 26
internal const val SHEET_EXTD_VARW = 27
internal const val SHEET_CURRENCIES_VARW = 28
internal const val SHEET_INTERNAL_VARW = 29
internal const val SHEET_LETTERLIKE_MATHS_VARW = 30
internal const val SHEET_ENCLOSED_ALPHNUM_SUPL_VARW = 31
internal const val SHEET_TAMIL_VARW = 32
internal const val SHEET_BENGALI_VARW = 33
internal const val SHEET_BRAILLE_VARW = 34
internal const val SHEET_SUNDANESE_VARW = 35
internal const val SHEET_DEVANAGARI2_INTERNAL_VARW = 36
internal const val SHEET_UNKNOWN = 254
// custom codepoints
internal const val RICH_TEXT_MODIFIER_RUBY_MASTER = 0xFFFA0
internal const val RICH_TEXT_MODIFIER_RUBY_SLAVE = 0xFFFA1
internal const val RICH_TEXT_MODIFIER_SUPERSCRIPT = 0xFFFA2
internal const val RICH_TEXT_MODIFIER_SUBSCRIPT = 0xFFFA3
internal const val RICH_TEXT_MODIFIER_TAG_END = 0xFFFBF
internal const val CHARSET_OVERRIDE_DEFAULT = 0xFFFC0
internal const val CHARSET_OVERRIDE_BG_BG = 0xFFFC1
internal const val CHARSET_OVERRIDE_SR_SR = 0xFFFC2
private val autoShiftDownOnLowercase = arrayOf(
SHEET_DIACRITICAL_MARKS_VARW
)
private val fileList = arrayOf( // MUST BE MATCHING WITH SHEET INDICES!!
"ascii_variable.tga",
"hangul_johab.tga",
"latinExtA_variable.tga",
"latinExtB_variable.tga",
"kana.tga",
"cjkpunct.tga",
"wenquanyi.tga.gz",
"cyrilic_variable.tga",
"halfwidth_fullwidth_variable.tga",
"unipunct_variable.tga",
"greek_variable.tga",
"thai_variable.tga",
"hayeren_variable.tga",
"kartuli_variable.tga",
"ipa_ext_variable.tga",
"futhark.tga",
"latinExt_additional_variable.tga",
"puae000-e0ff.tga",
"cyrilic_bulgarian_variable.tga",
"cyrilic_serbian_variable.tga",
"tsalagi_variable.tga",
"phonetic_extensions_variable.tga",
"devanagari_variable.tga",
"kartuli_allcaps_variable.tga",
"diacritical_marks_variable.tga",
"greek_polytonic_xyswap_variable.tga",
"latinExtC_variable.tga",
"latinExtD_variable.tga",
"currencies_variable.tga",
"internal_variable.tga",
"letterlike_symbols_variable.tga",
"enclosed_alphanumeric_supplement_variable.tga",
"tamil_extrawide_variable.tga",
"bengali_variable.tga",
"braille_variable.tga",
"sundanese_variable.tga",
"devanagari_internal_extrawide_variable.tga",
)
private val codeRange = arrayOf( // MUST BE MATCHING WITH SHEET INDICES!!
0..0xFF, // SHEET_ASCII_VARW
(0x1100..0x11FF) + (0xA960..0xA97F) + (0xD7B0..0xD7FF), // SHEET_HANGUL, because Hangul Syllables are disassembled prior to the render
0x100..0x17F, // SHEET_EXTA_VARW
0x180..0x24F, // SHEET_EXTB_VARW
(0x3040..0x30FF) + (0x31F0..0x31FF) + (0x1B000..0x1B001), // SHEET_KANA
0x3000..0x303F, // SHEET_CJK_PUNCT
0x3400..0x9FFF, // SHEET_UNIHAN
0x400..0x52F, // SHEET_CYRILIC_VARW
0xFF00..0xFFFF, // SHEET_HALFWIDTH_FULLWIDTH_VARW
0x2000..0x209F, // SHEET_UNI_PUNCT_VARW
0x370..0x3CE, // SHEET_GREEK_VARW
0xE00..0xE5F, // SHEET_THAI_VARW
0x530..0x58F, // SHEET_HAYEREN_VARW
0x10D0..0x10FF, // SHEET_KARTULI_VARW
0x250..0x2FF, // SHEET_IPA_VARW
0x16A0..0x16FF, // SHEET_RUNIC
0x1E00..0x1EFF, // SHEET_LATIN_EXT_ADD_VARW
0xE000..0xE0FF, // SHEET_CUSTOM_SYM
0xF0000..0xF005F, // SHEET_BULGARIAN_VARW; assign them to PUA
0xF0060..0xF00BF, // SHEET_SERBIAN_VARW; assign them to PUA
0x13A0..0x13F5, // SHEET_TSALAGI_VARW
0x1D00..0x1DBF, // SHEET_PHONETIC_EXT_VARW
(0x900..0x97F) + (0xF0100..0xF04FF), // SHEET_DEVANAGARI_VARW
0x1C90..0x1CBF, // SHEET_KARTULI_CAPS_VARW
0x300..0x36F, // SHEET_DIACRITICAL_MARKS_VARW
0x1F00..0x1FFF, // SHEET_GREEK_POLY_VARW
0x2C60..0x2C7F, // SHEET_EXTC_VARW
0xA720..0xA7FF, // SHEET_EXTD_VARW
0x20A0..0x20CF, // SHEET_CURRENCIES_VARW
0xFFE00..0xFFF9F, // SHEET_INTERNAL_VARW
0x2100..0x214F, // SHEET_LETTERLIKE_MATHS_VARW
0x1F100..0x1F1FF, // SHEET_ENCLOSED_ALPHNUM_SUPL_VARW
(0x0B80..0x0BFF) + (0xF00C0..0xF00FF), // SHEET_TAMIL_VARW
0x980..0x9FF, // SHEET_BENGALI_VARW
0x2800..0x28FF, // SHEET_BRAILLE_VARW
(0x1B80..0x1BBF) + (0x1CC0..0x1CCF), // SHEET_SUNDANESE_VARW
0xF0110..0xF012F, // SHEET_DEVANAGARI2_INTERNAL_VARW
)
private val codeRangeHangulCompat = 0x3130..0x318F
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)}"
private const val ZWNJ = 0x200C
private const val ZWJ = 0x200D
private val tamilLigatingConsonants = listOf('க','ங','ச','ஞ','ட','ண','த','ந','ன','ப','ம','ய','ர','ற','ல','ள','ழ','வ').map { it.toInt() }.toIntArray() // this is the only thing that .indexOf() is called against, so NO HASHSET
private const val TAMIL_KSSA = 0xF00ED
private const val TAMIL_SHRII = 0xF00EE
private const val TAMIL_I = 0xBBF
private const val DEVANAGARI_VIRAMA = 0x94D
private const val DEVANAGARI_NUQTA = 0x93C
private val DEVANAGARI_RA = 0x930.toDevaInternal()
private val DEVANAGARI_YA = 0x92F.toDevaInternal()
private val DEVANAGARI_RRA = 0x931.toDevaInternal()
private val DEVANAGARI_VA = 0x0935.toDevaInternal()
private val DEVANAGARI_HA = 0x939.toDevaInternal()
private const val DEVANAGARI_U = 0x941
private const val DEVANAGARI_UU = 0x942
private const val DEVANAGARI_I = 0x093F
private const val DEVANAGARI_II = 0x0940
private const val DEVANAGARI_RYA = 0xF0106
private const val DEVANAGARI_HALF_RYA = 0xF0107
private const val DEVANAGARI_SYLL_RU = 0xF0100
private const val DEVANAGARI_SYLL_RUU = 0xF0101
private const val DEVANAGARI_SYLL_RRU = 0xF0102
private const val DEVANAGARI_SYLL_RRUU = 0xF0103
private const val DEVANAGARI_SYLL_HU = 0xF0104
private const val DEVANAGARI_SYLL_HUU = 0xF0105
private const val DEVANAGARI_OPEN_YA = 0xF0108
private const val DEVANAGARI_OPEN_HALF_YA = 0xF0109
private const val DEVANAGARI_ALT_HALF_SHA = 0xF010F
private const val DEVANAGARI_EYELASH_RA = 0xF010B
private const val DEVANAGARI_RA_SUPER = 0xF010C
private const val DEVANAGARI_RA_SUPER_COMPLEX = 0xF010D
private const val MARWARI_DD = 0x978
private const val DEVANAGARI_LIG_K_T = 0xF01BC
// private const val DEVANAGARI_LIG_D_R_Y = 0xF01A0
private const val DEVANAGARI_LIG_K_SS = 0xF01A1
private const val DEVANAGARI_LIG_J_NY = 0xF01A2
private const val DEVANAGARI_LIG_T_T = 0xF01A3
private const val DEVANAGARI_LIG_N_T = 0xF01A4
private const val DEVANAGARI_LIG_N_N = 0xF01A5
private const val DEVANAGARI_LIG_S_V = 0xF01A6
private const val DEVANAGARI_LIG_SS_P = 0xF01A7
private const val DEVANAGARI_LIG_SH_C = 0xF01A8
private const val DEVANAGARI_LIG_SH_N = 0xF01A9
private const val DEVANAGARI_LIG_SH_V = 0xF01AA
private const val DEVANAGARI_LIG_J_Y = 0xF01AB
private const val DEVANAGARI_LIG_J_J_Y = 0xF01AC
private const val MARWARI_LIG_DD_DD = 0xF01BA
private const val MARWARI_LIG_DD_DDH = 0xF01BB
private const val MARWARI_LIG_DD_Y = 0xF016E
private const val MARWARI_HALFLIG_DD_Y = 0xF016F
private const val MARWARI_LIG_DD_R = 0xF010E
private val devanagariConsonants = ((0x0915..0x0939) + (0x0958..0x095F) + (0x0978..0x097F) +
(0xF0140..0xF04FF) + (0xF0106..0xF0109)).toHashSet()
private val devanagariVowels = ((0x093A..0x093C) + (0x093E..0x094C) + (0x094E..0x094F)).toHashSet()
private val devanagariRightVowels = ((0x093A..0x093C) + 0x093E + (0x0940..0x094C) + 0x094F).toHashSet()
private val devanagariBaseConsonants = 0x0915..0x0939
private val devanagariBaseConsonantsWithNukta = 0x0958..0x095F
private val devanagariBaseConsonantsExtended = 0x0978..0x097F
private val devanagariPresentationConsonants = 0xF0140..0xF022F
private val devanagariPresentationConsonantsHalf = 0xF0230..0xF031F
private val devanagariPresentationConsonantsWithRa = 0xF0320..0xF040F
private val devanagariPresentationConsonantsWithRaHalf = 0xF0410..0xF04FF
private val devanagariSuperscripts = ((0x0900..0x0902) + (0x093A..0x093B) + 0x0940 + (0x0945..0x094C) + 0x094F + 0x0951 + (0x0953..0x0955)).toHashSet()
private val devanagariConsonantsNonLig = (devanagariBaseConsonants +
devanagariBaseConsonantsWithNukta + devanagariBaseConsonantsExtended +
devanagariPresentationConsonants + devanagariPresentationConsonantsWithRa).toHashSet()
private val devanariConsonantsHalfs = (devanagariPresentationConsonantsHalf +
devanagariPresentationConsonantsWithRaHalf + listOf(DEVANAGARI_HALF_RYA, DEVANAGARI_OPEN_HALF_YA)).toHashSet()
private fun Int.internalDevaAddNukta(): Int {
return this + 48
}
private val devanagariUnicodeNuqtaTable = intArrayOf(0xF0170,0xF0171,0xF0172,0xF0177,0xF017C,0xF017D,0xF0186,0xF018A)
private fun Int.toDevaInternal(): Int {
if (this in 0x0915..0x0939) return this - 0x0915 + 0xF0140
else if (this in 0x0958..0x095F) return devanagariUnicodeNuqtaTable[this - 0x0958]
else throw IllegalArgumentException("No Internal form exists for ${this.charInfo()}")
}
private fun isRaAppended(c: CodePoint) = c in (0xF0320..0xF04FF)
/**
* @param tone1 0..4 where 0 is extra-high
*/
private fun getIntonationGraph(tone1: Int, tone2: Int): CodePoint {
return 0xFFE20 + tone1 * 5 + tone2
}
private fun Int.toHex() = "U+${this.toString(16).padStart(4, '0').toUpperCase()}"
// Hangul Implementation Specific //
private fun getWanseongHanChoseong(hanIndex: Int) = hanIndex / (JUNG_COUNT * JONG_COUNT)
private fun getWanseongHanJungseong(hanIndex: Int) = hanIndex / JONG_COUNT % JUNG_COUNT
private fun getWanseongHanJongseong(hanIndex: Int) = hanIndex % JONG_COUNT
// THESE ARRAYS MUST BE SORTED
// ㅣ
private val jungseongI = arrayOf(21,61).toSortedSet()
// ㅗ ㅛ ㅜ ㅠ
private val jungseongOU = arrayOf(9,13,14,18,34,35,39,45,51,53,54,64,80,83).toSortedSet()
// ㅘ ㅙ ㅞ
private val jungseongOUComplex = (arrayOf(10,11,16) + (22..33).toList() + arrayOf(36,37,38) + (41..44).toList() + arrayOf(46,47,48,49,50) + (56..59).toList() + arrayOf(63) + (67..79).toList() + arrayOf(81,82) + (84..93).toList()).toSortedSet()
// ㅐ ㅒ ㅔ ㅖ etc
private val jungseongRightie = arrayOf(2,4,6,8,11,16,32,33,37,42,44,48,50,71,72,75,78,79,83,86,87,88,94).toSortedSet()
// ㅚ *ㅝ* ㅟ
private val jungseongOEWI = arrayOf(12,15,17,40,52,55,89,90,91).toSortedSet()
// ㅡ
private val jungseongEU = arrayOf(19,62,66).toSortedSet()
// ㅢ
private val jungseongYI = arrayOf(20,60,65).toSortedSet()
// ㅜ ㅝ ㅞ ㅟ ㅠ
private val jungseongUU = arrayOf(14,15,16,17,18,27,30,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,59,67,68,77,78,79,80,81,82,83,84,91).toSortedSet()
private val jungseongWide = (jungseongOU.toList() + jungseongEU.toList()).toSortedSet()
private val choseongGiyeoks = arrayOf(0,1,15,23,30,34,45,51,56,65,82,90,100,101,110,111,115).toSortedSet()
// index of the peak, 0 being blank, 1 being ㅏ
// indices of peaks that number of lit pixels (vertically counted) on x=11 is greater than 7
private val hangulPeaksWithExtraWidth = arrayOf(2,4,6,8,11,16,32,33,37,42,44,48,50,71,75,78,79,83,86,87,88,94).toSortedSet()
private val giyeokRemapping = hashMapOf(
5 to 19,
6 to 20,
7 to 21,
8 to 22,
11 to 23,
12 to 24,
)
/**
* @param i Initial (Choseong)
* @param p Peak (Jungseong)
* @param f Final (Jongseong)
*/
private fun getHanInitialRow(i: Int, p: Int, f: Int): Int {
var ret =
if (p in jungseongI) 3
else if (p in jungseongOUComplex) 7
else if (p in jungseongOEWI) 11
else if (p in jungseongOU) 5
else if (p in jungseongEU) 9
else if (p in jungseongYI) 13
else 1
if (f != 0) ret += 1
return if (p in jungseongUU && i in choseongGiyeoks) giyeokRemapping[ret] ?: throw NullPointerException("i=$i p=$p f=$f ret=$ret") else ret
}
private fun getHanMedialRow(i: Int, p: Int, f: Int) = if (f == 0) 15 else 16
private fun getHanFinalRow(i: Int, p: Int, f: Int): Int {
return if (p !in jungseongRightie)
17
else
18
}
private fun isHangulChoseong(c: CodePoint) = c in (0x1100..0x115F) || c in (0xA960..0xA97F)
private fun isHangulJungseong(c: CodePoint) = c in (0x1160..0x11A7) || c in (0xD7B0..0xD7C6)
private fun isHangulJongseong(c: CodePoint) = c in (0x11A8..0x11FF) || c in (0xD7CB..0xD7FB)
private fun toHangulChoseongIndex(c: CodePoint) =
if (!isHangulChoseong(c)) throw IllegalArgumentException("This Hangul sequence does not begin with Choseong (${c.toHex()})")
else if (c in 0x1100..0x115F) c - 0x1100
else c - 0xA960 + 96
private fun toHangulJungseongIndex(c: CodePoint) =
if (!isHangulJungseong(c)) null
else if (c in 0x1160..0x11A7) c - 0x1160
else c - 0xD7B0 + 72
private fun toHangulJongseongIndex(c: CodePoint) =
if (!isHangulJongseong(c)) null
else if (c in 0x11A8..0x11FF) c - 0x11A8 + 1
else c - 0xD7CB + 88 + 1
/**
* X-position in the spritesheet
*
* @param iCP Code point for Initial (Choseong)
* @param pCP Code point for Peak (Jungseong)
* @param fCP Code point for Final (Jongseong)
*/
private fun toHangulIndex(iCP: CodePoint, pCP: CodePoint, fCP: CodePoint): IntArray {
val indexI = toHangulChoseongIndex(iCP)
val indexP = toHangulJungseongIndex(pCP) ?: 0
val indexF = toHangulJongseongIndex(fCP) ?: 0
return intArrayOf(indexI, indexP, indexF)
}
/**
* @param iCP 0x1100..0x115F, 0xA960..0xA97F, 0x3130..0x318F
* @param pCP 0x00, 0x1160..0x11A7, 0xD7B0..0xD7CA
* @param fCP 0x00, 0x11A8..0x11FF, 0xD7BB..0xD7FF
*
* @return IntArray pair representing Hangul indices and rows (in this order)
*/
private fun toHangulIndexAndRow(iCP: CodePoint, pCP: CodePoint, fCP: CodePoint): Pair<IntArray, IntArray> {
if (isHangulCompat(iCP)) {
return intArrayOf(iCP - 0x3130, 0, 0) to intArrayOf(0, 15, 17)
}
else {
val (indexI, indexP, indexF) = toHangulIndex(iCP, pCP, fCP)
val rowI = getHanInitialRow(indexI, indexP, indexF)
val rowP = getHanMedialRow(indexI, indexP, indexF)
val rowF = getHanFinalRow(indexI, indexP, indexF)
return intArrayOf(indexI, indexP, indexF) to intArrayOf(rowI, rowP, rowF)
}
}
// END Hangul //
private fun isHangul(c: CodePoint) = c in codeRange[SHEET_HANGUL] || c in codeRangeHangulCompat
private fun isBulgarian(c: CodePoint) = c in 0x400..0x45F
fun isColourCode(c: CodePoint) = c == 0x100000 || c in 0x10F000..0x10FFFF
private fun isCharsetOverride(c: CodePoint) = c in 0xFFFC0..0xFFFFF
private fun isDevanagari(c: CodePoint) = c in codeRange[SHEET_DEVANAGARI_VARW]
private fun isHangulCompat(c: CodePoint) = c in codeRangeHangulCompat
private fun indexX(c: CodePoint) = c % 16
private fun unihanIndexX(c: CodePoint) = (c - 0x3400) % 256
private fun extAindexY(c: CodePoint) = (c - 0x100) / 16
private fun extBindexY(c: CodePoint) = (c - 0x180) / 16
private fun runicIndexY(c: CodePoint) = (c - 0x16A0) / 16
private fun kanaIndexY(c: CodePoint) =
if (c in 0x31F0..0x31FF) 12
else if (c in 0x1B000..0x1B00F) 13
else (c - 0x3040) / 16
private fun cjkPunctIndexY(c: CodePoint) = (c - 0x3000) / 16
private fun cyrilicIndexY(c: CodePoint) = (c - 0x400) / 16
private fun fullwidthUniIndexY(c: CodePoint) = (c - 0xFF00) / 16
private fun uniPunctIndexY(c: CodePoint) = (c - 0x2000) / 16
private fun unihanIndexY(c: CodePoint) = (c - 0x3400) / 256
private fun greekIndexY(c: CodePoint) = (c - 0x370) / 16
private fun thaiIndexY(c: CodePoint) = (c - 0xE00) / 16
private fun symbolIndexY(c: CodePoint) = (c - 0xE000) / 16
private fun armenianIndexY(c: CodePoint) = (c - 0x530) / 16
private fun kartvelianIndexY(c: CodePoint) = (c - 0x10D0) / 16
private fun ipaIndexY(c: CodePoint) = (c - 0x250) / 16
private fun latinExtAddY(c: CodePoint) = (c - 0x1E00) / 16
private fun cherokeeIndexY(c: CodePoint) = (c - 0x13A0) / 16
private fun phoneticExtIndexY(c: CodePoint) = (c - 0x1D00) / 16
private fun devanagariIndexY(c: CodePoint) = (if (c < 0xF0000) (c - 0x0900) else (c - 0xF0080)) / 16
private fun bengaliIndexY(c: CodePoint) = (c - 0x980) / 16
private fun kartvelianCapsIndexY(c: CodePoint) = (c - 0x1C90) / 16
private fun diacriticalMarksIndexY(c: CodePoint) = (c - 0x300) / 16
private fun polytonicGreekIndexY(c: CodePoint) = (c - 0x1F00) / 16
private fun extCIndexY(c: CodePoint) = (c - 0x2C60) / 16
private fun extDIndexY(c: CodePoint) = (c - 0xA720) / 16
private fun currenciesIndexY(c: CodePoint) = (c - 0x20A0) / 16
private fun internalIndexY(c: CodePoint) = (c - 0xFFE00) / 16
private fun letterlikeIndexY(c: CodePoint) = (c - 0x2100) / 16
private fun enclosedAlphnumSuplY(c: CodePoint) = (c - 0x1F100) / 16
private fun tamilIndexY(c: CodePoint) = (if (c < 0xF0000) (c - 0x0B80) else (c - 0xF0040)) / 16
private fun brailleIndexY(c: CodePoint) = (c - 0x2800) / 16
private fun sundaneseIndexY(c: CodePoint) = (if (c < 0x1BC0) (c - 0x1B80) else (c - 0x1C80)) / 16
private fun devanagari2IndexY(c: CodePoint) = (c - 0xF0110) / 16
val charsetOverrideDefault = Character.toChars(CHARSET_OVERRIDE_DEFAULT).toSurrogatedString()
val charsetOverrideBulgarian = Character.toChars(CHARSET_OVERRIDE_BG_BG).toSurrogatedString()
val charsetOverrideSerbian = Character.toChars(CHARSET_OVERRIDE_SR_SR).toSurrogatedString()
fun toColorCode(argb4444: Int): String = Character.toChars(0x100000 + argb4444).toSurrogatedString()
fun toColorCode(r: Int, g: Int, b: Int, a: Int = 0x0F): String = toColorCode(a.shl(12) or r.shl(8) or g.shl(4) or b)
private fun CharArray.toSurrogatedString(): String = "${this[0]}${this[1]}"
val noColorCode = toColorCode(0x0000)
// The "Keming" Machine //
private val kemingBitMask: IntArray = intArrayOf(7,6,5,4,3,2,1,0,15,14).map { 1 shl it }.toIntArray()
private class ing(val s: String) {
private var careBits = 0
private var ruleBits = 0
init {
s.forEachIndexed { index, char ->
when (char) {
'@' -> {
careBits = careBits or kemingBitMask[index]
ruleBits = ruleBits or kemingBitMask[index]
}
'`' -> {
careBits = careBits or kemingBitMask[index]
}
}
}
}
fun matches(shapeBits: Int) = ((shapeBits and careBits) == ruleBits)
override fun toString() = "C:${careBits.toString(2).padStart(16,'0')}-R:${ruleBits.toString(2).padStart(16,'0')}"
}
private data class Kem(val first: ing, val second: ing, val bb: Int = 2, val yy: Int = 1)
/**
* Legend: _ dont care
* @ must have a bit set
* ` must have a bit unset
* Order: ABCDEFGHJK, where
*
* A·B < unset for lowheight miniscules, as in e
* |·| < space we don't care
* C·D < middle hole for majuscules, as in C
* E·F < middle hole for miniscules, as in c
* G·H
*――― < baseline
* |·|
* J·K
*/
private val kerningRules = arrayListOf(
Kem(ing("_`_@___`__"),ing("`_`___@___")), // ул
Kem(ing("_@_`___`__"),ing("`_________")),
Kem(ing("_@_@___`__"),ing("`___@_@___"),1,1),
Kem(ing("_@_@_`_`__"),ing("`_____@___")),
Kem(ing("___`_`____"),ing("`___@_`___")),
Kem(ing("___`_`____"),ing("`_@___`___")),
)
init {
// automatically create mirrored version of the kerningRules
val imax = kerningRules.size // to avoid concurrentmodificationshit
for (i in 0 until imax) {
val left = kerningRules[i].first.s
val right = kerningRules[i].second.s
val bb = kerningRules[i].bb
val yy = kerningRules[i].yy
val newleft = StringBuilder()
val newright = StringBuilder()
if (left.length != right.length && left.length % 2 != 0) throw IllegalArgumentException()
for (c in 0 until left.length step 2) {
newleft.append(right[c+1],right[c])
newright.append(left[c+1],left[c])
}
kerningRules.add(Kem(ing("$newleft"),ing("$newright"),bb,yy))
}
// kerningRules.forEach { println("Keming ${it.first.s} - ${it.second.s} ; ${it.bb}/${it.yy}") }
}
// End of the Keming Machine
}
}
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