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/*
* This file is subject to the terms of the GFX License, v1.0. If a copy of
* the license was not distributed with this file, you can obtain one at:
*
* http://chibios-gfx.com/license.html
*/
#include <stdio.h>
#include <fcntl.h>
#include <string.h>
#ifdef WIN32
#include <io.h>
#endif
static unsigned char buf[1024];
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;
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;
int opt_breakblocks;
char * opt_static;
char * opt_const;
FILE * f_input;
FILE * f_output;
unsigned blocknum;
size_t len;
size_t i;
/* Default values for our parameters */
opt_progname = filenameof(argv[0]);
opt_inputfile = 0;
opt_outputfile = 0;
opt_arrayname = 0;
opt_breakblocks = 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 'b': opt_breakblocks = 1; break;
case 'c': opt_const = "const "; break;
case 's': opt_static = "static "; break;
case 'n': opt_arrayname = *++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\t%s -?\n"
"\t%s [-bs] [-n name] [inputfile] [outputfile]\n"
"\t\t-?\tThis help\n"
"\t\t-h\tThis help\n"
"\t\t-b\tBreak the arrays for compilers that won't handle large arrays\n"
"\t\t-c\tDeclare the arrays as const (useful to ensure they end up in Flash)\n"
"\t\t-s\tDeclare the arrays as static\n"
"\t\t-n name\tUse \"name\" as the name of the array\n"
, opt_progname, opt_progname);
return 1;
}
nextarg: ;
}
/* 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) {
fprintf(f_output, " -");
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_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.
* We do this after printing opt_inputfile for the last time as we
* modify opt_inputfile in place to generate opt_arrayname.
*/
if (!opt_arrayname) {
if (opt_inputfile)
opt_arrayname = filenameof(opt_inputfile);
if (!opt_arrayname || !opt_arrayname[0])
opt_arrayname = "filearray";
}
opt_arrayname = clean4c(opt_arrayname);
/* Read the file processing 1K at a time */
blocknum = 0;
while((len = fread(buf, 1, sizeof(buf), f_input))) {
if (!blocknum++)
fprintf(f_output, "%s%sunsigned char %s[] = {", opt_static, opt_const, opt_arrayname);
else if (opt_breakblocks)
fprintf(f_output, "\n};\n%s%sunsigned char %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]);
}
}
fprintf(f_output, "\n};\n");
/* 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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