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/* See LICENSE file for copyright and license details. */
#include "common.h"
USAGE("X-file Y-file Z-file [alpha-file]")
int
main(int argc, char *argv[])
{
struct stream stream;
char xbuf[BUFSIZ], ybuf[BUFSIZ], zbuf[BUFSIZ], abuf[BUFSIZ];
int xfd, yfd, zfd, afd = -1;
size_t i, n, ptr;
UNOFLAGS(argc != 3 && argc != 4);
eopen_stream(&stream, NULL);
xfd = eopen(argv[0], O_WRONLY | O_CREAT | O_TRUNC, 0666);
yfd = eopen(argv[1], O_WRONLY | O_CREAT | O_TRUNC, 0666);
zfd = eopen(argv[2], O_WRONLY | O_CREAT | O_TRUNC, 0666);
if (argc == 4)
afd = eopen(argv[3], O_WRONLY | O_CREAT | O_TRUNC, 0666);
if (DPRINTF_HEAD(xfd, stream.frames, stream.width, stream.height, stream.pixfmt) < 0)
eprintf("dprintf %s:", argv[0]);
if (DPRINTF_HEAD(yfd, stream.frames, stream.width, stream.height, stream.pixfmt) < 0)
eprintf("dprintf %s:", argv[1]);
if (DPRINTF_HEAD(zfd, stream.frames, stream.width, stream.height, stream.pixfmt) < 0)
eprintf("dprintf %s:", argv[2]);
if (afd >= 0 && DPRINTF_HEAD(afd, stream.frames, stream.width, stream.height, stream.pixfmt) < 0)
eprintf("dprintf %s:", argv[3]);
n = (stream.n_chan - (afd < 0)) * stream.chan_size;
do {
for (ptr = 0; ptr + stream.pixel_size <= stream.ptr; ptr += stream.pixel_size) {
for (i = 0; i < n; i += stream.chan_size) {
memcpy(xbuf + ptr + i, stream.buf + ptr + 0 * stream.chan_size, stream.chan_size);
memcpy(ybuf + ptr + i, stream.buf + ptr + 1 * stream.chan_size, stream.chan_size);
memcpy(zbuf + ptr + i, stream.buf + ptr + 2 * stream.chan_size, stream.chan_size);
if (afd >= 0)
memcpy(abuf + ptr + i, stream.buf + ptr + 3 * stream.chan_size, stream.chan_size);
}
if (afd < 0) {
memcpy(xbuf + ptr + n, stream.buf + ptr + 3 * stream.chan_size, stream.chan_size);
memcpy(ybuf + ptr + n, stream.buf + ptr + 3 * stream.chan_size, stream.chan_size);
memcpy(zbuf + ptr + n, stream.buf + ptr + 3 * stream.chan_size, stream.chan_size);
}
}
ewriteall(xfd, xbuf, ptr, argv[0]);
ewriteall(yfd, ybuf, ptr, argv[1]);
ewriteall(zfd, zbuf, ptr, argv[2]);
if (afd >= 0)
ewriteall(afd, abuf, ptr, argv[3]);
memmove(stream.buf, stream.buf + ptr, stream.ptr -= ptr);
} while (eread_stream(&stream, SIZE_MAX));
if (stream.ptr)
eprintf("%s: incomplete frame\n", stream.file);
close(xfd);
close(yfd);
close(zfd);
if (afd >= 0)
close(afd);
return 0;
}
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