testoutput.c
author Ryan C. Gordon <icculus@icculus.org>
Tue, 26 Aug 2008 05:54:49 -0400
changeset 450 6a9faf398c1d
parent 390 4effa7e6b49c
child 475 ea119c8ce5cd
permissions -rw-r--r--
Allow overriding of swizzle on vertex attributes during bytecode parsing. This lets you compile a shader that you know wants ARGB color data, for example, when you're definitely going to pass it RGBA. The parser will handle this by changing the swizzle on that input register (including handling swizzling explicit swizzles), at no extra cost over not overriding swizzling; it does not generate any extra shader opcodes.

/**
 * 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"

static int do_parse(const unsigned char *buf, const int len, const char *prof)
{
    const MOJOSHADER_parseData *pd;
    int retval = 0;

    pd = MOJOSHADER_parse(prof, buf, len, NULL, 0, NULL, NULL, NULL);
    if (pd->error != NULL)
        printf("ERROR: %s\n", pd->error);
    else
    {
        retval = 1;
        if (pd->output != NULL)
        {
            int i;
            for (i = 0; i < pd->output_len; i++)
                putchar((int) pd->output[i]);
            printf("\n");
        } // if
    } // else
    printf("\n\n");
    MOJOSHADER_freeParseData(pd);

    return retval;
} // do_parse


int main(int argc, char **argv)
{
    int retval = 0;

    if (argc <= 2)
        printf("\n\nUSAGE: %s <profile> [file1] ... [fileN]\n\n", argv[0]);
    else
    {
        const char *profile = argv[1];
        int i;

        for (i = 2; i < argc; i++)
        {
            FILE *io = fopen(argv[i], "rb");
            if (io == NULL)
                printf(" ... fopen('%s') failed.\n", argv[i]);
            else
            {
                unsigned char *buf = (unsigned char *) malloc(1000000);
                int rc = fread(buf, 1, 1000000, io);
                fclose(io);
                if (!do_parse(buf, rc, profile))
                    retval = 1;
                free(buf);
            } // else
        } // for
    } // else

    return retval;
} // main

// end of testoutput.c ...