#include #include /* Mapping table. This table specifies the target index in the output file. */ int map_idx [120] = { 0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f, 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, 0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f, 0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, 0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf }; /* remap colors in a 256 color bitmap */ int main(int argc, char **argv) { if(argc<3) { fprintf(stderr, "Usage: %s \n", argv[0]); return 1; } FILE *in, *out; if((in=fopen(argv[1], "rb"))==NULL) { perror("Could not open input file"); return 1; } if((out=fopen(argv[2], "wb"))==NULL) { perror("Could not open output file"); return 1; } while(1) { uint8_t c=fgetc(in); if(feof(in))break; /* new palette mapping: 0-31: fonts, tile stuff 32-35: 4bit palette 2 36-47: logo 48-51: 4bit palette 3 52-63: logo 64-67: 4bit palette 4 68-79: logo 80-83: 4bit palette 5 84-95: logo 96-99: 4bit palette 6 100-111: logo 112-115: 4bit palette 7 116-175: logo 176-191: sprites (misc overlays, cursor, etc.) 192-255: sprites (logo gfx overlays) */ if(c < 120) { c = map_idx[c]; } else { c = 0; } fputc(c, out); } fclose(out); fclose(in); return 0; }