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/* See LICENSE file for copyright and license details. */
#include "common.h"
USAGE("colour-file")
#define PROCESS(TYPE, SUFFIX)\
static void\
process_##SUFFIX(struct stream *stream, int fd, const char *fname)\
{\
char buf[sizeof(stream->buf)];\
size_t i, j, n;\
TYPE a, *p, *b;\
do {\
n = stream->ptr / stream->pixel_size;\
p = (TYPE *)(stream->buf) + stream->n_chan - 1;\
b = (TYPE *)buf;\
for (i = 0; i < n; i++, p += stream->n_chan) {\
a = *p, *p = 1;\
for (j = stream->n_chan - 1; j--;)\
*b++ = a;\
*b++ = 1;\
}\
n *= stream->pixel_size;\
ewriteall(fd, stream->buf, n, fname);\
ewriteall(STDOUT_FILENO, buf, n, "<stdout>");\
memmove(stream->buf, stream->buf + n, stream->ptr -= n);\
} while (eread_stream(stream, SIZE_MAX));\
if (stream->ptr)\
eprintf("%s: incomplete frame\n", stream->file);\
}
PROCESS(double, lf)
PROCESS(float, f)
int
main(int argc, char *argv[])
{
struct stream stream;
int fd;
void (*process)(struct stream *stream, int fd, const char *fname);
UNOFLAGS(argc != 1);
eopen_stream(&stream, NULL);
fd = eopen(argv[0], O_WRONLY | O_CREAT | O_TRUNC, 0666);
if (stream.encoding == DOUBLE)
process = process_lf;
else if (stream.encoding == FLOAT)
process = process_f;
else
eprintf("pixel format %s is not supported, try xyza\n", stream.pixfmt);
fprint_stream_head(stdout, &stream);
efflush(stdout, "<stdout>");
if (dprint_stream_head(fd, &stream) < 0)
eprintf("dprintf %s:", argv[0]);
process(&stream, fd, argv[0]);
return 0;
}
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