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#define _GNU_SOURCE
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/wait.h>
#include "meh.h"
struct image *imagemagick_open(FILE *f){
int tmpfd[2];
if(pipe(tmpfd)){
perror("pipe");
exit(EXIT_FAILURE);
}
int pid;
if(!(pid = fork())){
close(tmpfd[0]);
int origfd = fileno(f);
if(lseek(origfd, 0, SEEK_SET) != 0){
perror("lseek");
exit(EXIT_FAILURE);
}
char *argv[6];
argv[0] = "convert";
argv[1] = "-depth";
argv[2] = "255";
asprintf(&argv[3], "fd:%i", origfd);
asprintf(&argv[4], "ppm:fd:%i", tmpfd[1]);
argv[5] = NULL;
execvp(argv[0], argv);
perror("exec");
exit(EXIT_FAILURE);
}else{
close(tmpfd[1]);
FILE *ftmp;
if(!(ftmp = fdopen(tmpfd[0], "rb"))){
perror("fopen");
exit(EXIT_FAILURE);
}
struct image *img = netpbm.open(ftmp);
if(!img)
return NULL;
fclose(f);
return img;
}
}
struct imageformat imagemagick = {
imagemagick_open,
NULL,
NULL,
NULL
};
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