Category : C Source Code
Archive   : FLILIB.ZIP
Filename : SLICEFLI.C

/* slicefli.c - This program cut is a demonstration of how to use the FLI.LIB
to create FLIC's */

#include "aaflisav.h"


main(int argc, char *argv[])
{
int i;
Errval err;
int ivmode;

if (argc != 3)
{
puts("slicefli - a program to cut out every other line of a FLI.");
puts(" usage: slicefli infile.fli outfile.fli");
exit(0);
}
ivmode = dos_get_vmode();
dos_set_vmode(0x13); /* To VGA/MCGA 320x200 256 color mode */
if (dos_get_vmode() != 0x13)
{
puts("Not a vga/mcga display, sorry");
}
else
{
err = convert_fli(argv[1], argv[2]);
if (err >= AA_SUCCESS)
{
fli_play(argv[2]);
}
dos_set_vmode(ivmode);
if (err < AA_SUCCESS)
puts(fli_error_message(err));
}
}

/* zero out every other line of a screen */
void slice_screen(Vscreen *s)
{
int i;
Pixel *p;

p = s->p;
for (i=0; ih; i+=2)
{
i86_bzero(p, s->bpr);
p += 2*s->bpr;
}
}


Errval convert_fli(char *in, char *out)
{
Errval err = AA_SUCCESS; /* start out optimistic! */
Vscreen *bs;
Fli_head inhead, outhead;
Jfile infile = 0, outfile = 0;
int i;

if ((bs = aa_alloc_mem_screen()) == NULL)
{
err = AA_ERR_NOMEM;
goto EXIT;
}
if ((infile = fli_open(in, &inhead)) < 0)
{
err = infile;
goto EXIT;
}
if ((outfile = fli_create(out, &outhead, inhead.speed)) < AA_SUCCESS)
{
goto EXIT;
}
for (i=0; i {
aa_copy_screen(&aa_screen, bs);
if ((err = fli_next_frame(infile)) < AA_SUCCESS)
{
goto EXIT;
}
slice_screen(&aa_screen);
if ((err = fli_write_next(outfile, &outhead, &aa_screen, bs)) < AA_SUCCESS)
{
goto EXIT;
}
}
if ((err = fli_end(outfile, &outhead, &aa_screen, bs)) < AA_SUCCESS)
{
goto EXIT;
}
EXIT:
if (infile != 0)
dos_close (infile);
if (outfile != 0)
dos_close (outfile);
aa_free_mem_screen(bs);
if (err < AA_SUCCESS)
{
dos_delete (out);
}
return(err);
}