added comments.

diff --git a/src/png2swf.c b/src/png2swf.c
index b765df0..b1827ed 100644 (file)
--- a/src/png2swf.c
+++ b/src/png2swf.c
@@ -315,11 +315,11 @@ void applyfilter4(int mode, U8*src, U8*old, U8*dest, int width)
     unsigned char lastr=0;
     unsigned char lastg=0;
     unsigned char lastb=0;
-    unsigned char lasta=0;
+    unsigned char lasta=0; //TODO: 255?
     unsigned char upperlastr=0;
     unsigned char upperlastg=0;
     unsigned char upperlastb=0;
-    unsigned char upperlasta=0;
+    unsigned char upperlasta=0; //TODO: 255?
 
     if(mode==0) {
        for(x=0;x<width;x++) {
@@ -570,7 +570,7 @@ TAG *MovieAddFrame(SWF * swf, TAG * t, char *sname, int id)
 
            if(!y) {
                old = firstline;
-               memset(old, 0, header.width*4);
+               memset(old, 0, header.width*4); //TODO: fill alpha with 255?
            } else {
                old = &data2[(y-1)*header.width*4];
            }