| 1 | #include <stdio.h> |
| 2 | |
| 3 | #define MAXCOLORS 256 |
| 4 | #define DEFAULT_NAME "fish" |
| 5 | |
| 6 | struct rgb_color { |
| 7 | unsigned int red, green, blue; |
| 8 | }; |
| 9 | |
| 10 | |
| 11 | void |
| 12 | ReadFshColors(ifp, colrs) |
| 13 | FILE *ifp; |
| 14 | struct rgb_color *colrs; |
| 15 | { |
| 16 | int i; |
| 17 | int val, val2; |
| 18 | |
| 19 | for (i = 0; i < 132; i++) { |
| 20 | val = fgetc(ifp); |
| 21 | } |
| 22 | |
| 23 | for (i = 0; i < 16; i++) { |
| 24 | val = fgetc(ifp); |
| 25 | colrs[i].blue = val; |
| 26 | val = fgetc(ifp); |
| 27 | colrs[i].green = val; |
| 28 | val = fgetc(ifp); |
| 29 | colrs[i].red = val; |
| 30 | val = fgetc(ifp); |
| 31 | } |
| 32 | } |
| 33 | |
| 34 | |
| 35 | unsigned char * |
| 36 | ReadFshData1(ifp) |
| 37 | FILE *ifp; |
| 38 | { |
| 39 | unsigned char *data; |
| 40 | int i, j, indx; |
| 41 | int val, val2; |
| 42 | |
| 43 | data = (unsigned char *) malloc(64 * 64); |
| 44 | for (j = 63; j >= 0; j--) { |
| 45 | indx = 64 * j; |
| 46 | for (i = 0; i < 32; i++) { |
| 47 | val = fgetc(ifp); |
| 48 | val2 = (val >> 4) & 0x0f; |
| 49 | data[indx] = (unsigned char) val2; |
| 50 | indx++; |
| 51 | val2 = val & 0x0f; |
| 52 | data[indx] = (unsigned char) val2; |
| 53 | indx++; |
| 54 | } |
| 55 | } |
| 56 | return (data); |
| 57 | } |
| 58 | |
| 59 | |
| 60 | unsigned char * |
| 61 | ReadFshData2(ifp) |
| 62 | FILE *ifp; |
| 63 | { |
| 64 | unsigned char *data; |
| 65 | int i, j, indx; |
| 66 | int val, val2; |
| 67 | |
| 68 | for (i = 0; i < (16 * 32); i++) { |
| 69 | val = fgetc(ifp); |
| 70 | } |
| 71 | |
| 72 | data = (unsigned char *) malloc(64 * 64); |
| 73 | for (j = 63; j >= 0; j--) { |
| 74 | indx = 64 * j; |
| 75 | for (i = 0; i < 32; i++) { |
| 76 | val = fgetc(ifp); |
| 77 | val2 = (val >> 4) & 0x0f; |
| 78 | data[indx] = (unsigned char) val2; |
| 79 | indx++; |
| 80 | val2 = val & 0x0f; |
| 81 | data[indx] = (unsigned char) val2; |
| 82 | indx++; |
| 83 | } |
| 84 | } |
| 85 | return (data); |
| 86 | } |
| 87 | |
| 88 | |
| 89 | struct rgb_color |
| 90 | * |
| 91 | MapColors(data1, colrs1, data2, colrs2, width, height, Cnt) |
| 92 | unsigned char *data1; |
| 93 | struct rgb_color *colrs1; |
| 94 | unsigned char *data2; |
| 95 | struct rgb_color *colrs2; |
| 96 | int width, height; |
| 97 | int *Cnt; |
| 98 | { |
| 99 | int i, j; |
| 100 | int fcnt, indx; |
| 101 | int Mapping[MAXCOLORS]; |
| 102 | unsigned char *ptr; |
| 103 | struct rgb_color *fcolrs; |
| 104 | |
| 105 | fcolrs = (struct rgb_color *) malloc((MAXCOLORS + 1) * sizeof(struct rgb_color)); |
| 106 | |
| 107 | fcnt = 0; |
| 108 | ptr = data1; |
| 109 | for (i = 0; i < (width * height); i++) { |
| 110 | indx = (int) *ptr; |
| 111 | for (j = 0; j < fcnt; j++) { |
| 112 | if ((fcolrs[j].red == colrs1[indx].red) && |
| 113 | (fcolrs[j].green == colrs1[indx].green) && |
| 114 | (fcolrs[j].blue == colrs1[indx].blue)) { |
| 115 | break; |
| 116 | } |
| 117 | } |
| 118 | if (j == fcnt) { |
| 119 | fcolrs[j].red = colrs1[indx].red; |
| 120 | fcolrs[j].green = colrs1[indx].green; |
| 121 | fcolrs[j].blue = colrs1[indx].blue; |
| 122 | Mapping[indx] = j; |
| 123 | fcnt++; |
| 124 | if (fcnt > MAXCOLORS) { |
| 125 | fprintf(stderr, "Error: cannot use more than %d colors in your fish\n", |
| 126 | MAXCOLORS); |
| 127 | exit(1); |
| 128 | } |
| 129 | } |
| 130 | ptr++; |
| 131 | } |
| 132 | ptr = data1; |
| 133 | for (i = 0; i < (width * height); i++) { |
| 134 | indx = (int) *ptr; |
| 135 | *ptr = (unsigned char) (Mapping[indx]); |
| 136 | ptr++; |
| 137 | } |
| 138 | |
| 139 | ptr = data2; |
| 140 | for (i = 0; i < (width * height); i++) { |
| 141 | indx = (int) *ptr; |
| 142 | for (j = 0; j < fcnt; j++) { |
| 143 | if ((fcolrs[j].red == colrs2[indx].red) && |
| 144 | (fcolrs[j].green == colrs2[indx].green) && |
| 145 | (fcolrs[j].blue == colrs2[indx].blue)) { |
| 146 | break; |
| 147 | } |
| 148 | } |
| 149 | if (j == fcnt) { |
| 150 | fcolrs[j].red = colrs2[indx].red; |
| 151 | fcolrs[j].green = colrs2[indx].green; |
| 152 | fcolrs[j].blue = colrs2[indx].blue; |
| 153 | Mapping[indx] = j; |
| 154 | fcnt++; |
| 155 | if (fcnt > MAXCOLORS) { |
| 156 | fprintf(stderr, "Error: cannot use more than %d colors in your fish\n", |
| 157 | MAXCOLORS); |
| 158 | exit(1); |
| 159 | } |
| 160 | } |
| 161 | ptr++; |
| 162 | } |
| 163 | ptr = data2; |
| 164 | for (i = 0; i < (width * height); i++) { |
| 165 | indx = (int) *ptr; |
| 166 | *ptr = (unsigned char) (Mapping[indx]); |
| 167 | ptr++; |
| 168 | } |
| 169 | |
| 170 | for (i = 0; i < fcnt; i++) { |
| 171 | fcolrs[i].red = fcolrs[i].red * 256; |
| 172 | fcolrs[i].green = fcolrs[i].green * 256; |
| 173 | fcolrs[i].blue = fcolrs[i].blue * 256; |
| 174 | } |
| 175 | for (i = fcnt; i < 16; i++) { |
| 176 | fcolrs[i].red = 0; |
| 177 | fcolrs[i].green = 0; |
| 178 | fcolrs[i].blue = 0; |
| 179 | } |
| 180 | |
| 181 | if (fcnt < 16) { |
| 182 | fcnt = 16; |
| 183 | } |
| 184 | *Cnt = fcnt; |
| 185 | return (fcolrs); |
| 186 | } |
| 187 | |
| 188 | |
| 189 | main(argc, argv) |
| 190 | int argc; |
| 191 | char *argv[]; |
| 192 | { |
| 193 | FILE *ifp; |
| 194 | FILE *ofd; |
| 195 | int i, j, cnt, fcnt; |
| 196 | struct rgb_color colrs1[MAXCOLORS]; |
| 197 | struct rgb_color *fcolrs; |
| 198 | unsigned char *data1, *data2; |
| 199 | int width, height; |
| 200 | char outfile[256]; |
| 201 | char *outname; |
| 202 | |
| 203 | ifp = NULL; |
| 204 | if (argc > 1) { |
| 205 | ifp = fopen(argv[1], "r"); |
| 206 | } |
| 207 | if (ifp == NULL) { |
| 208 | ifp = stdin; |
| 209 | } |
| 210 | |
| 211 | width = 64; |
| 212 | height = 64; |
| 213 | ReadFshColors(ifp, colrs1); |
| 214 | data1 = ReadFshData1(ifp); |
| 215 | data2 = ReadFshData2(ifp); |
| 216 | |
| 217 | fcolrs = MapColors(data1, colrs1, data2, colrs1, width, height, &fcnt); |
| 218 | |
| 219 | if (argc > 2) { |
| 220 | outname = argv[2]; |
| 221 | } else { |
| 222 | cnt = 0; |
| 223 | if (argc > 1) { |
| 224 | while ((argv[1][cnt] != '.') && (argv[1][cnt] != '\0')) { |
| 225 | cnt++; |
| 226 | } |
| 227 | } |
| 228 | if (cnt == 0) { |
| 229 | outname = (char *) malloc(strlen(DEFAULT_NAME) + 1); |
| 230 | strcpy(outname, DEFAULT_NAME); |
| 231 | } else { |
| 232 | outname = (char *) malloc(cnt + 1); |
| 233 | strncpy(outname, argv[1], cnt); |
| 234 | outname[cnt] = '\0'; |
| 235 | } |
| 236 | } |
| 237 | sprintf(outfile, "%s.h", outname); |
| 238 | |
| 239 | ofd = fopen(outfile, "w"); |
| 240 | if (ofd == NULL) { |
| 241 | fprintf(stderr, "Error: cannot open (%s) for writing\n", outfile); |
| 242 | exit(1); |
| 243 | } |
| 244 | |
| 245 | fprintf(ofd, "#define %s_width\t\t%d\n", outname, width); |
| 246 | fprintf(ofd, "#define %s_height\t\t%d\n", outname, height); |
| 247 | fprintf(ofd, "#define %s_colors\t\t%d\n", outname, fcnt); |
| 248 | fprintf(ofd, "#define %s_back\t\t%d\n", outname, (int) data1[0]); |
| 249 | fprintf(ofd, "int\t%s_reds[] = {", outname); |
| 250 | for (i = 0; i < fcnt; i++) { |
| 251 | if (i == (fcnt - 1)) { |
| 252 | fprintf(ofd, "%d};\n", fcolrs[i].red); |
| 253 | } else { |
| 254 | fprintf(ofd, "%d, ", fcolrs[i].red); |
| 255 | } |
| 256 | } |
| 257 | fprintf(ofd, "int\t%s_greens[] = {", outname); |
| 258 | for (i = 0; i < fcnt; i++) { |
| 259 | if (i == (fcnt - 1)) { |
| 260 | fprintf(ofd, "%d};\n", fcolrs[i].green); |
| 261 | } else { |
| 262 | fprintf(ofd, "%d, ", fcolrs[i].green); |
| 263 | } |
| 264 | } |
| 265 | fprintf(ofd, "int\t%s_blues[] = {", outname); |
| 266 | for (i = 0; i < fcnt; i++) { |
| 267 | if (i == (fcnt - 1)) { |
| 268 | fprintf(ofd, "%d};\n", fcolrs[i].blue); |
| 269 | } else { |
| 270 | fprintf(ofd, "%d, ", fcolrs[i].blue); |
| 271 | } |
| 272 | } |
| 273 | fprintf(ofd, "unsigned char\t%s_rasterA[] = {\n", outname); |
| 274 | for (i = 0; i < (width * height); i++) { |
| 275 | fprintf(ofd, "0x%02x,", data1[i]); |
| 276 | } |
| 277 | fprintf(ofd, "};\n"); |
| 278 | fprintf(ofd, "unsigned char\t%s_rasterB[] = {\n", outname); |
| 279 | for (i = 0; i < (width * height); i++) { |
| 280 | fprintf(ofd, "0x%02x,", data2[i]); |
| 281 | } |
| 282 | fprintf(ofd, "};\n"); |
| 283 | |
| 284 | fclose(ofd); |
| 285 | |
| 286 | exit(0); |
| 287 | } |