initialize zlib

diff --git a/png.c b/png.c
index 98d599371717c7f4fe3062d92328530fc426ad6f..accf41540995ca4acee6274414e99790c7f0cb0f 100644 (file)
--- a/png.c
+++ b/png.c
@@ -2,6 +2,8 @@
 #include <stdint.h>
 #include <arpa/inet.h>
 #include <zlib.h>
+#include <stdio.h>
+#include <stdlib.h>
 
 #include "png.h"
 
@@ -76,6 +78,7 @@ unsigned char *lcd2png(unsigned char *lcd, int *len)
        uint32_t l;
        int i;
        int toalloc = 0;
+       z_stream strm;
 
        for(i = 0; i < 256; i++) {
                lut[i][0] = ((i >> 6) * 0x55);
@@ -89,6 +92,15 @@ unsigned char *lcd2png(unsigned char *lcd, int *len)
                screen_conv[i+2] = lut[lcd[i/3]][2];
        }
 
+       strm.zalloc = Z_NULL;
+       strm.zfree = Z_NULL;
+       strm.opaque = Z_NULL;
+       if (deflateInit(&strm, 9) != Z_OK) {
+               perror("deflateInit");
+               exit(EXIT_FAILURE);
+       }
+
+
        image = malloc(320*234*2); /* TODO: FIXME! */
        outpos = image;
        memcpy(outpos, png, sizeof(png));