| 98 | } |
| 99 | |
| 100 | run() { |
| 101 | let bmf = parseBMF(this.readFileBuffer(this.fontPath), true); |
| 102 | let bytes = new Uint8Array(bmf); |
| 103 | bytes.position = bmf.position + 4; |
| 104 | bmf.writePosition = bmf.byteLength; |
| 105 | |
| 106 | let bmp = parseBMP(this.readFileBuffer(this.bitmapPath)); |
| 107 | let bmpIs4 = 4 == Bitmap.depth(bmp.pixelFormat); |
| 108 | |
| 109 | let output = new FILE(this.outputPath, "wb"); |
| 110 | |
| 111 | let convert = new Converter(bmp.pixelFormat, Bitmap.Gray16); |
| 112 | let chars = new Array(bmf.charCount); |
| 113 | |
| 114 | let sourceRowBytes = ((bmp.width * Bitmap.depth(bmp.pixelFormat)) + 7) >> 3; |
| 115 | |
| 116 | /* |
| 117 | set our extra flags in the chnl field of the first glyph |
| 118 | */ |
| 119 | let position = bytes.position; |
| 120 | let prev = this.readU32(bytes); |
| 121 | let continuous = true, ascending = true; |
| 122 | for (let char = 1; char < bmf.charCount; char++) { |
| 123 | bytes.position = position + (20 * char); |
| 124 | let c = this.readU32(bytes); |
| 125 | if (c != (prev + 1)) |
| 126 | continuous = false; |
| 127 | if (c <= prev) |
| 128 | ascending = false; |
| 129 | bytes.position = position + (20 * (char + 1)); |
| 130 | prev = c; |
| 131 | } |
| 132 | bytes.position = position; |
| 133 | if (!continuous && !ascending) |
| 134 | throw new Error("character codes must be ascending"); |
| 135 | bytes[position + 19] |= 0x80; |
| 136 | if (continuous) |
| 137 | bytes[position + 19] |= 0x40; |
| 138 | if (ascending) |
| 139 | bytes[position + 19] |= 0x20; |
| 140 | |
| 141 | bytes[position + 19] |= 0x10; // kerning table sorted (below) |
| 142 | |
| 143 | /* |
| 144 | compress each glyph independently |
| 145 | */ |
| 146 | for (let char = 0; char < bmf.charCount; char += 1, bytes.position += 8) { |
| 147 | let dataOffset = bmf.writePosition - bytes.position; // byte offset from characters entry |
| 148 | let charCode = this.readU32(bytes); |
| 149 | let sx = this.readS16(bytes); |
| 150 | let sy = this.readS16(bytes); |
| 151 | let sw = this.readS16(bytes); |
| 152 | let sh = this.readS16(bytes); |
| 153 | let tc, td; |
| 154 | |
| 155 | switch (this.rotation) { |
| 156 | case 90: |
| 157 | tc = sx; |