diff --git a/app/src/main/java/io/legado/app/model/analyzeRule/QueryTTF.kt b/app/src/main/java/io/legado/app/model/analyzeRule/QueryTTF.kt deleted file mode 100644 index 0f7af2c52..000000000 --- a/app/src/main/java/io/legado/app/model/analyzeRule/QueryTTF.kt +++ /dev/null @@ -1,633 +0,0 @@ -package io.legado.app.model.analyzeRule - -import org.apache.commons.lang3.tuple.Pair -import org.apache.commons.lang3.tuple.Triple -import java.nio.charset.Charset -import java.nio.charset.StandardCharsets -import java.util.* -import kotlin.experimental.and - -class QueryTTF(buffer: ByteArray) { - private class Header( - var majorVersion: Int = 0, - var minorVersion: Int = 0, - var numOfTables: Int = 0, - var searchRange: Int = 0, - var entrySelector: Int = 0, - var rangeShift: Int = 0, - ) - - private class Directory { - lateinit var tag: String // table name - var checkSum: Int = 0 // Check sum - var offset: Int = 0 // Offset from beginning of file - var length: Int = 0 // length of the table in bytes - } - - private class NameLayout( - var format: Int = 0, - var count: Int = 0, - var stringOffset: Int = 0, - var records: MutableList = LinkedList(), - ) - - private class NameRecord( - var platformID: Int = 0, // 平台标识符<0:Unicode, 1:Mac, 2:ISO, 3:Windows, 4:Custom> - var encodingID: Int = 0, // 编码标识符 - var languageID: Int = 0, // 语言标识符 - var nameID: Int = 0, // 名称标识符 - var length: Int = 0,// 名称字符串的长度 - var offset: Int = 0, // 名称字符串相对于stringOffset的字节偏移量 - ) - - private class HeadLayout( - var majorVersion: Int = 0, - var minorVersion: Int = 0, - var fontRevision: Int = 0, - var checkSumAdjustment: Int = 0, - var magicNumber: Int = 0, - var flags: Int = 0, - var unitsPerEm: Int = 0, - var created: Long = 0, - var modified: Long = 0, - var xMin: Short = 0, - var yMin: Short = 0, - var xMax: Short = 0, - var yMax: Short = 0, - var macStyle: Int = 0, - var lowestRecPPEM: Int = 0, - var fontDirectionHint: Short = 0, - var indexToLocFormat: Short = 0, // <0:loca是2字节数组, 1:loca是4字节数组> - var glyphDataFormat: Short = 0, - ) - - private class MaxpLayout( - var majorVersion: Int = 0, - var minorVersion: Int = 0, - var numGlyphs: Int = 0, // 字体中的字形数量 - var maxPoints: Int = 0, - var maxContours: Int = 0, - var maxCompositePoints: Int = 0, - var maxCompositeContours: Int = 0, - var maxZones: Int = 0, - var maxTwilightPoints: Int = 0, - var maxStorage: Int = 0, - var maxFunctionDefs: Int = 0, - var maxInstructionDefs: Int = 0, - var maxStackElements: Int = 0, - var maxSizeOfInstructions: Int = 0, - var maxComponentElements: Int = 0, - var maxComponentDepth: Int = 0, - ) - - private class CmapLayout( - var version: Int = 0, - var numTables: Int = 0, - var records: MutableList = LinkedList(), - var tables: MutableMap = HashMap(), - ) - - private class CmapRecord( - var platformID: Int = 0, - var encodingID: Int = 0, - var offset: Int = 0, - ) - - private open class CmapFormat { - var format: Int = 0 - open var length: Int = 0 - open var language: Int = 0 - lateinit var glyphIdArray: IntArray - } - - private class CmapFormat4 : CmapFormat() { - var segCountX2: Int = 0 - var searchRange: Int = 0 - var entrySelector: Int = 0 - var rangeShift: Int = 0 - lateinit var endCode: IntArray - var reservedPad: Int = 0 - lateinit var startCode: IntArray - lateinit var idDelta: ShortArray - lateinit var idRangeOffset: IntArray -// override lateinit var glyphIdArray: IntArray - } - - private class CmapFormat6( - var firstCode: Int = 0, - var entryCount: Int = 0, - ) : CmapFormat() - - private class CmapFormat12( - var reserved: Int = 0, - override var length: Int = 0, - override var language: Int = 0, - var numGroups: Int = 0, - var groups: MutableList> - ) : CmapFormat() - - private class GlyfLayout( - var numberOfContours: Short = 0, // 非负值为简单字型,负值为符合字型 - var xMin: Short = 0, - var yMin: Short = 0, - var xMax: Short = 0, - var yMax: Short = 0, - var instructionLength: Int = 0 - ) { - lateinit var endPtsOfContours: IntArray // length=numberOfContours - lateinit var instructions: IntArray // length=instructionLength - lateinit var flags: ByteArray - lateinit var xCoordinates: ShortArray // length = flags.length - lateinit var yCoordinates: ShortArray // length = flags.length - } - - private class ByteArrayReader(var buffer: ByteArray, var index: Int) { - fun readUIntX(len: Long): Long { - var result: Long = 0 - for (i in 0 until len) { - result = result shl 8 - result = result or ((buffer[index++] and 0xFF.toByte()).toLong()) - } - return result - } - - fun readUInt64(): Long = readUIntX(8) - - fun readUInt32(): Int = readUIntX(4).toInt() - - fun readUInt16(): Int = readUIntX(2).toInt() - - fun readInt16(): Short = readUIntX(2).toShort() - - fun readUInt8(): Short = readUIntX(1).toShort() - - fun readStrings(len: Int, charset: Charset): String { - val result = ByteArray(len) - for (i in 0 until len) { - result[i] = buffer[index++] - } - return String(result, charset) - } - - fun getByte() = buffer[index++] - - fun getBytes(len: Int): IntArray { - val result = IntArray(len) - for (i in 0 until len) { - result[i] = buffer[index++].toInt() - } - return result - } - - fun getUInt16Array(len: Int): IntArray { - val result = IntArray(len) - for (i in 0 until len) { - result[i] = readUInt16() - } - return result - } - - fun getInt16Array(len: Int): ShortArray { - val result = ShortArray(len) - for (i in 0 until len) { - result[i] = readInt16() - } - return result - } - } - - private val fontReader: ByteArrayReader = ByteArrayReader(buffer, 0) - private val directories: MutableList = LinkedList() - private val name = NameLayout() - private val cmap = CmapLayout() - private val pps: Array> = arrayOf( - Pair.of(3, 10), - Pair.of(0, 4), - Pair.of(3, 1), - Pair.of(1, 0), - Pair.of(0, 3), - Pair.of(0, 1) - ) - private val codeToGlyph: MutableMap = HashMap() - private val glyphToCode: MutableMap = HashMap() - private var limitMix = 0 - private var limitMax = 0 - - /** - * 获取字体信息 (1=字体名称) - * - * @param nameId 传入十进制字体信息索引 - * @return 返回查询结果字符串 - */ - fun getNameById(nameId: Int): String { - for (temp in directories) { - if ("name" != temp.tag) { - continue - } - fontReader.index = temp.offset - break - } - for (record in name.records) { - if (record.nameID != nameId) { - continue - } - fontReader.index += name.stringOffset + record.offset - return fontReader.readStrings(record.length, if (record.platformID == 1) StandardCharsets.UTF_8 else StandardCharsets.UTF_16BE) - } - return "error" - } - - /** - * 使用Unicode值查找轮廓索引 - * - * @param code 传入Unicode十进制值 - * @return 返回十进制轮廓索引 - */ - private fun getGlyfIndex(code: Int): Int { - if (code == 0) { - return 0 - } - var fmtKey = 0 - for (item in pps) { - for (record in cmap.records) { - if (item.left == record.platformID && item.right == record.encodingID) { - fmtKey = record.offset - break - } - } - if (fmtKey > 0) { - break - } - } - if (fmtKey == 0) { - return 0 - } - var glyfID = 0 - val table = cmap.tables[fmtKey] - when (table?.format) { - 0 -> { - if (code < table.glyphIdArray.size) { - glyfID = table.glyphIdArray[code] and 0xFF - } - } - 4 -> { - val tab = table as CmapFormat4 - if (code > tab.endCode[tab.endCode.size - 1]) { - return 0 - } - // 二分法查找数值索引 - var start = 0 - var middle: Int - var end = tab.endCode.size - 1 - while (start + 1 < end) { - middle = (start + end) / 2 - if (tab.endCode[middle] <= code) { - start = middle - } else { - end = middle - } - } - if (tab.endCode[start] < code) { - ++start - } - if (code < tab.startCode[start]) { - return 0 - } - glyfID = if (tab.idRangeOffset[start] != 0) { - tab.glyphIdArray[code - tab.startCode[start] + (tab.idRangeOffset[start] shr 1) - (tab.idRangeOffset.size - start)] - } else { - code + tab.idDelta[start] - } - glyfID = glyfID and 0xFFFF - } - 6 -> { - val tab = table as CmapFormat6 - val index = code - tab.firstCode - glyfID = if (index < 0 || index >= tab.glyphIdArray.size) { - 0 - } else { - tab.glyphIdArray[index] - } - } - 12 -> { - val tab = table as CmapFormat12 - if (code > tab.groups[tab.numGroups - 1].middle) { - return 0 - } - // 二分法查找数值索引 - var start = 0 - var middle: Int - var end = tab.numGroups - 1 - while (start + 1 < end) { - middle = (start + end) / 2 - if (tab.groups[middle].left <= code) { - start = middle - } else { - end = middle - } - } - if (tab.groups[start].left <= code && code <= tab.groups[start].middle) { - glyfID = tab.groups[start].right + code - tab.groups[start].left - } - } - } - return glyfID - } - - /** - * 判断Unicode值是否在字体范围内 - * @param code 传入Unicode十进制值 - * @return 返回bool查询结果 - */ - fun inLimit(code: Char): Boolean = code.toInt() in limitMix until limitMax - - /** - * 使用Unicode值获取轮廓数据 - * - * @param key 传入Unicode十进制值 - * @return 返回轮廓数组的String值 - */ - fun getGlyfByCode(key: Int): String = codeToGlyph.getOrDefault(key, "") - - /** - * 使用轮廓数据获取Unicode值 - * - * @param val 传入轮廓数组的String值 - * @return 返回Unicode十进制值 - */ - fun getCodeByGlyf(`val`: String): Int = glyphToCode.getOrDefault(`val`, 0) - - /** - * 构造函数 buffer 传入TTF字体二进制数组 - */ - init { - // 获取文件头 - val fileHeader = Header() - fileHeader.majorVersion = fontReader.readUInt16() - fileHeader.minorVersion = fontReader.readUInt16() - fileHeader.numOfTables = fontReader.readUInt16() - fileHeader.searchRange = fontReader.readUInt16() - fileHeader.entrySelector = fontReader.readUInt16() - fileHeader.rangeShift = fontReader.readUInt16() - // 获取目录 - for (i in 0 until fileHeader.numOfTables) { - val d = Directory() - d.tag = fontReader.readStrings(4, StandardCharsets.US_ASCII) - d.checkSum = fontReader.readUInt32() - d.offset = fontReader.readUInt32() - d.length = fontReader.readUInt32() - directories.add(d) - } - // 解析表 name (字体信息,包含版权、名称、作者等...) - for (temp in directories) { - if ("name" == temp.tag) { - fontReader.index = temp.offset - name.format = fontReader.readUInt16() - name.count = fontReader.readUInt16() - name.stringOffset = fontReader.readUInt16() - for (i in 0 until name.count) { - val record = NameRecord() - record.platformID = fontReader.readUInt16() - record.encodingID = fontReader.readUInt16() - record.languageID = fontReader.readUInt16() - record.nameID = fontReader.readUInt16() - record.length = fontReader.readUInt16() - record.offset = fontReader.readUInt16() - name.records.add(record) - } - } - } - // 解析表 head (获取 head.indexToLocFormat) - val head = HeadLayout() - for (temp in directories) { - if ("head" == temp.tag) { - fontReader.index = temp.offset - head.majorVersion = fontReader.readUInt16() - head.minorVersion = fontReader.readUInt16() - head.fontRevision = fontReader.readUInt32() - head.checkSumAdjustment = fontReader.readUInt32() - head.magicNumber = fontReader.readUInt32() - head.flags = fontReader.readUInt16() - head.unitsPerEm = fontReader.readUInt16() - head.created = fontReader.readUInt64() - head.modified = fontReader.readUInt64() - head.xMin = fontReader.readInt16() - head.yMin = fontReader.readInt16() - head.xMax = fontReader.readInt16() - head.yMax = fontReader.readInt16() - head.macStyle = fontReader.readUInt16() - head.lowestRecPPEM = fontReader.readUInt16() - head.fontDirectionHint = fontReader.readInt16() - head.indexToLocFormat = fontReader.readInt16() - head.glyphDataFormat = fontReader.readInt16() - } - } - // 解析表 maxp (获取 maxp.numGlyphs) - val maxp = MaxpLayout() - for (temp in directories) { - if ("maxp" == temp.tag) { - fontReader.index = temp.offset - maxp.majorVersion = fontReader.readUInt16() - maxp.minorVersion = fontReader.readUInt16() - maxp.numGlyphs = fontReader.readUInt16() - maxp.maxPoints = fontReader.readUInt16() - maxp.maxContours = fontReader.readUInt16() - maxp.maxCompositePoints = fontReader.readUInt16() - maxp.maxCompositeContours = fontReader.readUInt16() - maxp.maxZones = fontReader.readUInt16() - maxp.maxTwilightPoints = fontReader.readUInt16() - maxp.maxStorage = fontReader.readUInt16() - maxp.maxFunctionDefs = fontReader.readUInt16() - maxp.maxInstructionDefs = fontReader.readUInt16() - maxp.maxStackElements = fontReader.readUInt16() - maxp.maxSizeOfInstructions = fontReader.readUInt16() - maxp.maxComponentElements = fontReader.readUInt16() - maxp.maxComponentDepth = fontReader.readUInt16() - } - } - // 解析表 loca (轮廓数据偏移地址表) - val loca: MutableList = LinkedList() - for (temp in directories) { - if ("loca" == temp.tag) { - fontReader.index = temp.offset - val offset = if (head.indexToLocFormat == 0.toShort()) 2 else 4 - var i: Long = 0 - while (i < temp.length) { - loca.add(if (offset == 2) fontReader.readUInt16() shl 1 else fontReader.readUInt32()) - i += offset - } - } - } - // 解析表 cmap (Unicode编码轮廓索引对照表) - for (temp in directories) { - if ("cmap" == temp.tag) { - fontReader.index = temp.offset - cmap.version = fontReader.readUInt16() - cmap.numTables = fontReader.readUInt16() - for (i in 0 until cmap.numTables) { - val record = CmapRecord() - record.platformID = fontReader.readUInt16() - record.encodingID = fontReader.readUInt16() - record.offset = fontReader.readUInt32() - cmap.records.add(record) - } - for (i in 0 until cmap.numTables) { - val fmtOffset = cmap.records[i].offset - fontReader.index = temp.offset + fmtOffset - val endIndex = fontReader.index - val format = fontReader.readUInt16() - if (cmap.tables.containsKey(fmtOffset)) { - continue - } - when (format) { - 0 -> { - val f = CmapFormat() - f.format = format - f.length = fontReader.readUInt16() - f.language = fontReader.readUInt16() - f.glyphIdArray = fontReader.getBytes(f.length - 6) - cmap.tables[fmtOffset] = f - } - 4 -> { - val f = CmapFormat4() - f.format = format - f.length = fontReader.readUInt16() - f.language = fontReader.readUInt16() - f.segCountX2 = fontReader.readUInt16() - val segCount = f.segCountX2 shr 1 - f.searchRange = fontReader.readUInt16() - f.entrySelector = fontReader.readUInt16() - f.rangeShift = fontReader.readUInt16() - f.endCode = fontReader.getUInt16Array(segCount) - f.reservedPad = fontReader.readUInt16() - f.startCode = fontReader.getUInt16Array(segCount) - f.idDelta = fontReader.getInt16Array(segCount) - f.idRangeOffset = fontReader.getUInt16Array(segCount) - f.glyphIdArray = fontReader.getUInt16Array(endIndex + f.length - fontReader.index shr 1) - cmap.tables[fmtOffset] = f - } - 6 -> { - val f = CmapFormat6() - f.format = format - f.length = fontReader.readUInt16() - f.language = fontReader.readUInt16() - f.firstCode = fontReader.readUInt16() - f.entryCount = fontReader.readUInt16() - f.glyphIdArray = fontReader.getUInt16Array(f.entryCount) - cmap.tables[fmtOffset] = f - } - 12 -> { - val f = CmapFormat12( - reserved = fontReader.readUInt16(), - length = fontReader.readUInt32(), - language = fontReader.readUInt32(), - numGroups = fontReader.readUInt32(), - groups = ArrayList(fontReader.readUInt32()) - ) - f.format = format - for (n in 0 until f.numGroups) { - (f.groups as ArrayList>).add(Triple.of(fontReader.readUInt32(), fontReader.readUInt32(), fontReader.readUInt32())) - } - cmap.tables[fmtOffset] = f - } - } - } - } - } - // 解析表 glyf (字体轮廓数据表) - val glyf: MutableList = LinkedList() - for (temp in directories) { - if ("glyf" == temp.tag) { - fontReader.index = temp.offset - for (i in 0 until maxp.numGlyphs) { - fontReader.index = temp.offset + loca[i] - val numberOfContours = fontReader.readInt16() - if (numberOfContours > 0) { - val g = GlyfLayout() - g.numberOfContours = numberOfContours - g.xMin = fontReader.readInt16() - g.yMin = fontReader.readInt16() - g.xMax = fontReader.readInt16() - g.yMax = fontReader.readInt16() - g.endPtsOfContours = fontReader.getUInt16Array(numberOfContours.toInt()) - g.instructionLength = fontReader.readUInt16() - g.instructions = fontReader.getBytes(g.instructionLength) - val flagLength = g.endPtsOfContours[g.endPtsOfContours.size - 1] + 1 - // 获取轮廓点描述标志 - g.flags = ByteArray(flagLength).apply { - var n = 0 - while (n < flagLength) { - this[n] = fontReader.getByte() - if ((this[n] and 0x08) != 0x00.toByte()) { - for (m in fontReader.readUInt8() downTo 1) { - this[++n] = this[n - 1] - } - } - ++n - } - } - // 获取轮廓点描述x轴相对值 - g.xCoordinates = ShortArray(flagLength) - for (n in 0 until flagLength) { - val same = (if (g.flags[n] and 0x10 != 0.toByte()) 1 else -1).toShort() - if (g.flags[n] and 0x02 != 0.toByte()) { - g.xCoordinates[n] = (same * fontReader.readUInt8()).toShort() - } else { - g.xCoordinates[n] = if (same.toInt() == 1) 0.toShort() else fontReader.readInt16() - } - } - // 获取轮廓点描述y轴相对值 - g.yCoordinates = ShortArray(flagLength) - for (n in 0 until flagLength) { - val same = (if (g.flags[n] and 0x20 != 0.toByte()) 1 else -1).toShort() - if (g.flags[n] and 0x04 != 0.toByte()) { - g.yCoordinates[n] = (same * fontReader.readUInt8()).toShort() - } else { - g.yCoordinates[n] = if (same.toInt() == 1) 0.toShort() else fontReader.readInt16() - } - } - // 相对坐标转绝对坐标 -// for (int n = 1; n < flagLength; ++n) { -// xCoordinates[n] += xCoordinates[n - 1]; -// yCoordinates[n] += yCoordinates[n - 1]; -// } - glyf.add(g) - } //else情况：复合字体暂未使用 - } - } - } - - // 建立Unicode&Glyph双向表 - var key = 0 - while (key < 130000) { - if (key == 0xFF) { - key = 0x3400 - } - val gid = getGlyfIndex(key) - if (gid == 0) { - ++key - continue - } - val sb = StringBuilder() - // 字型数据转String，方便存HashMap - for (b in glyf[gid].xCoordinates) { - sb.append(b.toInt()) - } - for (b in glyf[gid].yCoordinates) { - sb.append(b.toInt()) - } - val `val` = sb.toString() - if (limitMix == 0) { - limitMix = key - } - limitMax = key - codeToGlyph[key] = `val` - if (glyphToCode.containsKey(`val`)) { - ++key - continue - } - glyphToCode[`val`] = key - ++key - } - } -} \ No newline at end of file