X-Git-Url: http://git.asbjorn.biz/?a=blobdiff_plain;f=lib%2Fpng.c;h=e290b6f3b1a1646a838fa89a11ad13bbe4c991d8;hb=db721072f17c264df29ad7d62d4c71a250b9be89;hp=95f5b11d8c645d8ed005c1f9a47f9c08063b92d1;hpb=573c6972379cba7d2a6990d38b56936e181e1eaa;p=swftools.git

diff --git a/lib/png.c b/lib/png.c
index 95f5b11..e290b6f 100644
--- a/lib/png.c
+++ b/lib/png.c
@@ -197,6 +197,7 @@ static void applyfilter1(int mode, unsigned char*src, unsigned char*old, unsigne
     else if(mode==3) {
 	for(x=0;x<width;x++) {
 	    *dest = *src+(*old+last)/2;
+	    last = *dest;
 	    dest++;
 	    old++;
 	    src++;
@@ -1081,7 +1082,7 @@ EXPORT void writePNG(const char*filename, unsigned char*data, int width, int hei
     zs.opaque = Z_NULL;
     zs.next_out = writebuf;
     zs.avail_out = ZLIB_BUFFER_SIZE;
-    ret = deflateInit(&zs, 9);
+    ret = deflateInit(&zs, Z_NO_COMPRESSION);
     if (ret != Z_OK) {
 	fprintf(stderr, "error in deflateInit(): %s", zs.msg?zs.msg:"unknown");
 	return;
@@ -1099,7 +1100,7 @@ EXPORT void writePNG(const char*filename, unsigned char*data, int width, int hei
 	{
 	    int filtermode;
 	    int bestsize = 0x7fffffff;
-	    for(filtermode=0;filtermode<5;filtermode++) {
+	    for(filtermode=0;filtermode<=0;filtermode++) {
 
 		if(!y && filtermode>=2)
 		    continue; // don't do y direction filters in the first row