X-Git-Url: http://git.asbjorn.biz/?a=blobdiff_plain;f=lib%2Fmodules%2Fswfshape.c;fp=lib%2Fmodules%2Fswfshape.c;h=bc972d494544ca6aabd211156e45c7adc87fb4db;hb=5c25a1fc058ae69818976cbb0e6c6b2f6a1aada5;hp=afa069c8c3cd6356b253173e7b6ed35d4235c98a;hpb=18cb339268fdf827801ef1ddf3cd714014fd22d1;p=swftools.git

diff --git a/lib/modules/swfshape.c b/lib/modules/swfshape.c
index afa069c..bc972d4 100644
--- a/lib/modules/swfshape.c
+++ b/lib/modules/swfshape.c
@@ -616,6 +616,35 @@ static int parseFillStyleArray(TAG*tag, SHAPE2*shape)
     return 1;
 }
 
+char swf_ShapeIsEmpty(SHAPE*s)
+{
+    if(!s || !s->data) return 1;
+    TAG _tag;
+    TAG* tag = &_tag;
+    memset(tag, 0, sizeof(TAG));
+    tag->data = s->data;
+    tag->len = tag->memsize = (s->bitlen+7)/8;
+    tag->pos = 0;
+    
+    while(1) {
+	if(!swf_GetBits(tag, 1)) {
+	    U16 flags = swf_GetBits(tag, 5);
+	    if(!flags) break;
+	    if(flags&1) { //move
+		int n = swf_GetBits(tag, 5); 
+		swf_GetSBits(tag, n); //x
+		swf_GetSBits(tag, n); //y
+	    }
+	    if(flags&2) swf_GetBits(tag, s->bits.fill);
+	    if(flags&4) swf_GetBits(tag, s->bits.fill);
+	    if(flags&8) swf_GetBits(tag, s->bits.line);
+	    if(flags&16) {return 0;}
+	} else {
+	    return 0;
+	}
+    }
+    return 1;
+}
 
 /* todo: merge this with swf_GetSimpleShape */
 static SHAPELINE* swf_ParseShapeData(U8*data, int bits, int fillbits, int linebits, int version, SHAPE2*shape2)