X-Git-Url: http://git.asbjorn.biz/?a=blobdiff_plain;f=lib%2Frfxswf.c;h=28891e4736e0f1b5e404979cffb60b52a7e53fc7;hb=79d1c8f25ee9082844d8a85d50e2c1e4127e2480;hp=9b962355d6df9ce123e5d3da2ad0058fcdf75d73;hpb=de0e909835e1cb1d2c0bb675f4dbed62bb452a9c;p=swftools.git

diff --git a/lib/rfxswf.c b/lib/rfxswf.c
index 9b96235..28891e4 100644
--- a/lib/rfxswf.c
+++ b/lib/rfxswf.c
@@ -744,6 +744,51 @@ int swf_DefineSprite_GetRealSize(TAG * t)
   return len;
 }
 
+void swf_UnFoldSprite(TAG * t)
+{
+  U16 id,tmp;
+  U32 len;
+  TAG*next = t;
+  U16 spriteid,spriteframes;
+  if(t->id!=ST_DEFINESPRITE)
+    return;
+  if(t->len<=4) // not folded
+    return;
+
+  swf_SetTagPos(t,0);
+
+  spriteid = swf_GetU16(t); //id
+  spriteframes = swf_GetU16(t); //frames
+
+  tmp = swf_GetU16(t);
+  len = tmp&0x3f;
+  id  = tmp>>6;
+  while(id)
+  {
+    TAG*it = 0;
+    if (len==0x3f)
+	len = swf_GetU32(t);
+    it = swf_InsertTag(next, id);
+    next = it;
+    it->len = len;
+    it->id  = id;
+    if (it->len)
+    { it->data = (U8*)malloc(t->len);
+      it->memsize = it->len;
+      swf_GetBlock(t, it->data, it->len);
+    }
+    tmp = swf_GetU16(t);
+    len = tmp&0x3f;
+    id  = tmp>>6;
+  }
+  
+  free(t->data); t->data = 0;
+  t->memsize = t->len = t->pos = 0;
+
+  swf_SetU16(t, spriteid);
+  swf_SetU16(t, spriteframes);
+}
+
 void swf_FoldSprite(TAG * t)
 {
   TAG*sprtag=t,*tmp;
@@ -809,6 +854,67 @@ void swf_FoldAll(SWF*swf)
     }
 }
 
+void swf_UnFoldAll(SWF*swf)
+{
+    TAG*tag = swf->firstTag;
+    while(tag) {
+        TAG*next = swf_NextTag(tag);
+	if(tag->id == ST_DEFINESPRITE)
+	    swf_UnFoldSprite(tag);
+	tag = next;
+    }
+}
+
+void swf_OptimizeTagOrder(SWF*swf)
+{
+  TAG*tag,*next;
+  TAG*level0;
+  int level;
+  int changes;
+  swf_UnFoldAll(swf);
+  /* at the moment, we don't actually do optimizing,
+     only fixing of non-spec-conformant things like
+     sprite tags */
+
+  do {
+    changes = 0;
+    level = 0;
+    level0 = 0;
+    tag = swf->firstTag;
+    while(tag) {
+      next = tag->next;
+      if(tag->id == ST_DEFINESPRITE) {
+	level++;
+	if(level==1) {
+	  level0 = tag;
+	  tag = next;
+	  continue;
+	}
+      }
+      if(level>=1) {
+	/* move non-sprite tags out of sprite */
+	if(!swf_isAllowedSpriteTag(tag) || level>=2) {
+	  /* remove tag from current position */
+	  tag->prev->next = tag->next;
+	  tag->next->prev = tag->prev;
+
+	  /* insert before tag level0 */
+	  tag->next = level0;
+	  tag->prev = level0->prev;
+	  level0->prev = tag;
+	  tag->prev->next = tag;
+	  changes = 1;
+	}
+      }
+      if(tag->id == ST_END) {
+	level--;
+      }
+
+      tag = next;
+    }
+  } while(changes);
+}
+
 // Movie Functions
 
 int swf_ReadSWF2(struct reader_t*reader, SWF * swf)   // Reads SWF to memory (malloc'ed), returns length or <0 if fails