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/* See LICENSE file for copyright and license details. */
#include "stream.h"
#include "util.h"
#include <fcntl.h>
#include <inttypes.h>
#include <string.h>
#include <unistd.h>
USAGE("")
static size_t srcw, srch, srcwps, srchps, ps;
#define PROCESS(TYPE)\
do {\
size_t x, i, n = ps / sizeof(TYPE);\
char *src, *img;\
for (x = 0; x < srchps; x += ps) {\
img = row + x;\
src = col + x * srcw;\
for (i = 0; i < n; i++)\
((TYPE *)img)[i] = ((TYPE *)src)[i];\
}\
} while (0)
static void process_double(char *row, char *col) {PROCESS(double);}
static void process_float (char *row, char *col) {PROCESS(float);}
static void process_char (char *row, char *col) {PROCESS(char);}
int
main(int argc, char *argv[])
{
struct stream stream;
char *buf, *image;
size_t n, y;
void (*process)(char *col, char *row);
UNOFLAGS(argc);
eopen_stream(&stream, NULL);
srch = stream.height;
stream.height = srcw = stream.width;
stream.width = srch;
fprint_stream_head(stdout, &stream);
efflush(stdout, "<stdout>");
echeck_frame_size(stream.width, stream.height, stream.pixel_size, 0, stream.file);
n = stream.height * stream.width * (ps = stream.pixel_size);
srchps = srch * ps;
srcwps = srcw * ps;
buf = emalloc(n);
image = emalloc(srchps);
process = !(ps % sizeof(double)) ? process_double :
!(ps % sizeof(float)) ? process_float : process_char;
while (eread_frame(&stream, buf, n)) {
for (y = 0; y < srcwps; y += ps) {
process(image, buf + y);
ewriteall(STDOUT_FILENO, image, srchps, "<stdout>");
}
}
free(buf);
free(image);
return 0;
}
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