getidfromtag now also handles the displaylist tags

[swftools.git] / src / flash.c

diff --git a/src/flash.c b/src/flash.c
index fff8284..289dcbb 100644 (file)
--- a/src/flash.c
+++ b/src/flash.c
@@ -42,6 +42,21 @@ struct flash_header swf_read_header()
     return head;
 }
 
+void swf_write_header(struct writer_t*w, struct flash_header*head)
+{
+    writer_writeu8(w, head->version);
+    writer_writeu32(w, head->length);
+    
+    writer_writebits(w, 31, 5); 
+    writer_writebits(w, head->boundingBox.x1, 31);
+    writer_writebits(w, head->boundingBox.x2, 31);
+    writer_writebits(w, head->boundingBox.y1, 31);
+    writer_writebits(w, head->boundingBox.y2, 31);
+    writer_resetbits(w);
+    writer_writeu16(w, head->rate);
+    writer_writeu16(w, head->count);
+}
+
 struct RGB readRGB()
 {
     struct RGB rgb;
@@ -69,7 +84,7 @@ struct GRADIENT readGRADIENT(int shape)
     for(t=0;t<gradient.num;t++)
     {
        gradient.ratios[t] = readu8();
-       if(shape>=3)
+       if(shape<3)
            gradient.rgb[t] = readRGB();
        else
            gradient.rgba[t] = readRGBA();
@@ -108,14 +123,14 @@ void writeRECT(u8**pos, struct RECT*r)
     *pos = writer_getpos(&w);
 }
 
-struct CXFORM readCXFORM()
+struct CXFORM readCXFORM(char alpha)
 {
     struct CXFORM c;
     int bits;
     c.hasadd=readbit();
     c.hasmult=readbit();
     bits=getbits(4);
-    c.alpha = 0;
+    c.alpha = alpha;
 
     if (c.hasmult)
     {
@@ -301,7 +316,7 @@ void placeobject_init (struct PlaceObject*obj, struct swf_tag*tag)
     obj -> matrix = readMATRIX();
     obj -> hascxform = (getinputpos() < &tag->data[tag->length]);
     if(obj -> hascxform)
-       obj -> cxform = readCXFORM();
+       obj -> cxform = readCXFORM(0);
 }
 
 void placeobject_write (struct PlaceObject*obj, struct writer_t*w)
@@ -354,7 +369,7 @@ void placeobject2_init (struct PlaceObject2*obj,struct swf_tag*tag)
        obj->matrix = readMATRIX();
     } 
     if(obj->hascolortransform) {
-       obj->cxform = readCXFORM();
+       obj->cxform = readCXFORM(0);
     }
     if(obj->hasratio) {
        obj->ratio=readu16();
@@ -479,7 +494,28 @@ int spritetagids[] =
 
 int getidfromtag(struct swf_tag* tag)
 {
-    // todo: check for more than one id
+    int num = 1;
+    switch(tag->id) {
+       case TAGID_PLACEOBJECT2:
+           num++;
+       case TAGID_PLACEOBJECT:
+          reader_init (tag->data, tag->length);
+          if(num>=2) {
+               char b = readu8();
+               if(!(b&2))
+                   return -1;
+          }
+          readu16();
+          return readu16();
+       break;
+       case TAGID_REMOVEOBJECT:
+          return *(u16*)tag->data;
+       break;
+       case TAGID_REMOVEOBJECT2:
+          return -1;
+       break;
+    }
+
     return *(u16*)tag->data;
 }