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/*
* This file is subject to the terms of the GFX License. If a copy of
* the license was not distributed with this file, you can obtain one at:
*
* http://ugfx.org/license.html
*/
#include <stdio.h>
#include <fcntl.h>
#include <string.h>
#include <stdlib.h>
#include <time.h>
#ifdef WIN32
#include <io.h>
#endif
static unsigned char buf[1024];
static char tname[FILENAME_MAX];
static char *filenameof(char *fname) {
char *p;
#ifdef WIN32
if (fname[1] == ':')
fname = fname+2;
p = strrchr(fname, '\\');
if (p) fname = p+1;
#endif
p = strrchr(fname, '/');
if (p) fname = p+1;
return fname;
}
static char *basenameof(char *fname) {
char *p;
fname = filenameof(fname);
p = strchr(fname, '.');
if (p) *p = 0;
return fname;
}
static char *clean4c(char *fname) {
char *p;
while((p = strpbrk(fname, "-+ `~!@#$%^&*(){}[]|:;'\",<>?/|=.\\"))) *p = '_';
return fname;
}
int main(int argc, char * argv[])
{
char * opt_progname;
char * opt_inputfile;
char * opt_outputfile;
char * opt_arrayname;
char * opt_dirname;
int opt_breakblocks;
int opt_romdir;
char * opt_static;
char * opt_const;
FILE * f_input;
FILE * f_output;
unsigned blocknum;
size_t len, totallen;
size_t i;
/* Default values for our parameters */
opt_progname = basenameof(argv[0]);
opt_inputfile = opt_outputfile = opt_arrayname = opt_dirname = 0;
opt_breakblocks = opt_romdir = 0;
opt_static = opt_const = "";
/* Read the arguments */
while(*++argv) {
if (argv[0][0] == '-') {
while (*++(argv[0])) {
switch(argv[0][0]) {
case '?': case 'h': goto usage;
case 'd': opt_romdir = 1; break;
case 'b': opt_breakblocks = 1; break;
case 'c': opt_const = "const "; break;
case 's': opt_static = "static "; break;
case 'n': opt_arrayname = *++argv; goto nextarg;
case 'f': opt_romdir = 1; opt_dirname = *++argv; goto nextarg;
default:
fprintf(stderr, "Unknown flag -%c\n", argv[0][0]);
goto usage;
}
}
} else if (!opt_inputfile)
opt_inputfile = argv[0];
else if (!opt_outputfile)
opt_outputfile = argv[0];
else {
usage:
fprintf(stderr, "Usage:\n\n%s -?\n"
"%s [-dbcs] [-n name] [-f file] [inputfile] [outputfile]\n"
"\t-?\tThis help\n"
"\t-h\tThis help\n"
"\t-d\tAdd a directory entry for the ROM file system\n"
"\t-b\tBreak the arrays for compilers that won't handle large arrays\n"
"\t-c\tDeclare as const (useful to ensure they end up in Flash)\n"
"\t-s\tDeclare as static\n"
"\t-n name\tUse \"name\" as the name of the array\n"
"\t-f file\tUse \"file\" as the filename in the ROM directory entry\n"
, opt_progname, opt_progname);
return 1;
}
nextarg: ;
}
/* Make sure we can generate a default directory name if required */
if (opt_romdir && !opt_dirname && !opt_inputfile) {
fprintf(stderr, "If using -d you must either specify an input filename or use -f to specify a directory entry filename\n");
goto usage;
}
/* Open the input file */
if (opt_inputfile) {
f_input = fopen(opt_inputfile,
#ifdef WIN32
"rb");
#else
"r");
#endif
if (!f_input) {
fprintf(stderr, "Could not open input file '%s'\n", opt_inputfile);
goto usage;
}
} else {
f_input = stdin;
#ifdef WIN32
_setmode(_fileno(stdin), _O_BINARY);
#endif
}
/* Open the output file */
if (opt_outputfile) {
f_output = fopen(opt_outputfile, "w");
if (!f_output) {
fprintf(stderr, "Could not open output file '%s'\n", opt_outputfile);
goto usage;
}
} else
f_output = stdout;
/* Print the comment header */
fprintf(f_output, "/**\n * This file was generated ");
if (opt_inputfile) fprintf(f_output, "from \"%s\" ", opt_inputfile);
fprintf(f_output, "using...\n *\n *\t%s", opt_progname);
if (opt_arrayname || opt_static[0] || opt_const[0] || opt_breakblocks || opt_romdir) {
fprintf(f_output, " -");
if (opt_romdir) fprintf(f_output, "d");
if (opt_breakblocks) fprintf(f_output, "b");
if (opt_const[0]) fprintf(f_output, "c");
if (opt_static[0]) fprintf(f_output, "s");
if (opt_arrayname) fprintf(f_output, "n %s", opt_arrayname);
if (opt_dirname) fprintf(f_output, (opt_arrayname ? " -f %s" : "f %s"), opt_dirname);
}
if (opt_inputfile) fprintf(f_output, " %s", opt_inputfile);
if (opt_outputfile) fprintf(f_output, " %s", opt_outputfile);
fprintf(f_output, "\n *\n */\n");
/*
* Set the array name and dir name
*/
if (!opt_arrayname) {
if (opt_inputfile)
opt_arrayname = basenameof(strcpy(tname, opt_inputfile));
if (!opt_arrayname || !opt_arrayname[0]) {
srand(time(0));
sprintf(tname, "filearray%u", rand());
opt_arrayname = tname;
}
}
opt_arrayname = clean4c(opt_arrayname);
if (opt_romdir && !opt_dirname)
opt_dirname = filenameof(opt_inputfile);
/* Read the file processing 1K at a time */
blocknum = 0;
totallen = 0;
while((len = fread(buf, 1, sizeof(buf), f_input))) {
if (!blocknum++)
fprintf(f_output, "%s%schar %s[] = {", opt_static, opt_const, opt_arrayname);
else if (opt_breakblocks)
fprintf(f_output, "\n};\n%s%schar %s_p%u[] = {", opt_static, opt_const, opt_arrayname, blocknum);
for(i = 0; i < len; i++) {
fprintf(f_output, (i & 0x0F) ? " 0x%02X," : "\n\t0x%02X,", buf[i]);
}
totallen += len;
}
fprintf(f_output, "\n};\n");
/* Add the directory entry if required */
if (opt_romdir) {
fprintf(f_output, "\n#ifdef ROMFS_DIRENTRY_HEAD\n");
fprintf(f_output, "\t%s%sROMFS_DIRENTRY %s_dir = { 0, 0, ROMFS_DIRENTRY_HEAD, \"%s\", %u, %s };\n", opt_static, opt_const, opt_arrayname, opt_dirname, totallen, opt_arrayname);
fprintf(f_output, "\t#undef ROMFS_DIRENTRY_HEAD\n\t#define ROMFS_DIRENTRY_HEAD &%s_dir\n#endif\n", opt_arrayname);
}
/* Clean up */
if (ferror(f_input))
fprintf(stderr, "Input file read error\n");
if (ferror(f_output))
fprintf(stderr, "Output file write error - disk full?\n");
if (f_input != stdin)
fclose(f_input);
if (f_output != stdout)
fclose(f_output);
return 0;
}
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