preprocess.c
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/**
* MojoShader; generate shader programs from bytecode of compiled
* Direct3D shaders.
*
* Please see the file LICENSE.txt in the source's root directory.
*
* This file written by Ryan C. Gordon.
*/
#include <stdio.h>
#include <stdlib.h>
#include "mojoshader.h"
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static int preprocess(const char *fname, const char *buf, int len,
const char *outfile)
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{
FILE *io = fopen(outfile, "wb");
if (io == NULL)
{
printf(" ... fopen('%s') failed.\n", outfile);
return 0;
} // if
const MOJOSHADER_preprocessData *pd;
int retval = 0;
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pd = MOJOSHADER_preprocess(fname, buf, len, NULL, 0, NULL,
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NULL, NULL, NULL, NULL);
if (pd->error_count > 0)
{
int i;
for (i = 0; i < pd->error_count; i++)
{
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printf("%s:%d: ERROR: %s\n",
pd->errors[i].filename ? pd->errors[i].filename : "???",
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pd->errors[i].error_position,
pd->errors[i].error);
} // for
} // if
else
{
if (pd->output != NULL)
{
if (fwrite(pd->output, pd->output_len, 1, io) != 1)
printf(" ... fwrite('%s') failed.\n", outfile);
else if (fclose(io) == EOF)
printf(" ... fclose('%s') failed.\n", outfile);
else
retval = 1;
} // if
} // else
MOJOSHADER_freePreprocessData(pd);
return retval;
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} // preprocess
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int main(int argc, char **argv)
{
int retval = 1;
if (argc != 3)
printf("\n\nUSAGE: %s <inputfile> <outputfile>\n\n", argv[0]);
else
{
const char *infile = argv[1];
const char *outfile = argv[2];
FILE *io = fopen(infile, "rb");
if (io == NULL)
printf(" ... fopen('%s') failed.\n", infile);
else
{
char *buf = (char *) malloc(1000000);
int rc = fread(buf, 1, 1000000, io);
fclose(io);
if (rc == EOF)
printf(" ... fread('%s') failed.\n", infile);
else
{
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if (preprocess(infile, buf, rc, outfile))
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retval = 0;
else
remove(outfile);
free(buf);
} // else
} // for
} // else
return retval;
} // main
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// end of preprocess.c ...