1 files changed, 55 insertions, 0 deletions
diff --git a/.repos/farbfeld/ff2pam.c b/.repos/farbfeld/ff2pam.c
new file mode 100644
index 0000000..fca5c6f
--- /dev/null
+++ b/.repos/farbfeld/ff2pam.c
@@ -0,0 +1,55 @@
+/* See LICENSE file for copyright and license details. */
+#include <arpa/inet.h>
+
+#include <errno.h>
+#include <inttypes.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "util.h"
+
+static void
+usage(void)
+{
+	die("usage: %s", argv0);
+}
+
+int
+main(int argc, char *argv[])
+{
+	size_t rowlen;
+	uint32_t width, height, i;
+	uint16_t *row;
+
+	/* arguments */
+	argv0 = argv[0], argc--, argv++;
+
+	if (argc) {
+		usage();
+	}
+
+	/* prepare */
+	ff_read_header(&width, &height);
+	row = ereallocarray(NULL, width, (sizeof("RGBA") - 1) * sizeof(uint16_t));
+	rowlen = width * (sizeof("RGBA") - 1);
+
+	/* write data */
+	printf("P7\n"
+	       "WIDTH %" PRIu32 "\n"
+	       "HEIGHT %" PRIu32 "\n"
+	       "DEPTH 4\n" /* number of channels */
+	       "MAXVAL 65535\n"
+	       "TUPLTYPE RGB_ALPHA\n"
+	       "ENDHDR\n",
+	       width, height);
+
+	for (i = 0; i < height; i++) {
+		efread(row, sizeof(uint16_t), rowlen, stdin);
+		efwrite(row, sizeof(uint16_t), rowlen, stdout);
+	}
+
+	return fshut(stdout, "<stdout>");
+}