implemented optional debugging.

[swftools.git] / lib / modules / swftools.c

diff --git a/lib/modules/swftools.c b/lib/modules/swftools.c
index 4117fc3..b94bc4a 100644 (file)
--- a/lib/modules/swftools.c
+++ b/lib/modules/swftools.c
@@ -65,6 +65,14 @@ MATRIX * swf_MatrixMapTriangle(MATRIX * m,int dx,int dy,int x0,int y0,
   return m;
 }
 
+void swf_SetDefineID(TAG * tag, U16 newid)
+{
+  int oldlen = tag->len;
+  tag->len = 0;
+  swf_SetU16(tag, newid); /* set defining ID */
+  tag->len = oldlen;
+}
+
 U16 swf_GetDefineID(TAG * t)
 // up to SWF 4.0
 { U32 oldTagPos;
@@ -116,6 +124,7 @@ U16 swf_GetPlaceID(TAG * t)
   switch (swf_GetTagID(t))
   { case ST_PLACEOBJECT:
     case ST_REMOVEOBJECT:
+    case ST_FREECHARACTER:
     case ST_STARTSOUND:
       id = swf_GetU16(t);
       break;
@@ -282,7 +291,9 @@ char* swf_GetName(TAG * t)
     return name;
 }
 
-void enumerateUsedIDs_styles(TAG * tag, void (*callback)(TAG*, int, void*), void*callback_data, int num)
+#define DEBUG_ENUMERATE if(0)
+
+static void enumerateUsedIDs_styles(TAG * tag, void (*callback)(TAG*, int, void*), void*callback_data, int num)
 {
     U16 count;
     int t;
@@ -524,10 +535,14 @@ void enumerateUsedIDs(TAG * tag, int base, void (*callback)(TAG*, int, void*), v
            int id; 
            id = swf_GetU16(tag); // id;
            swf_GetRect(tag, NULL); // bounds
+    
+           DEBUG_ENUMERATE printf("Tag:%d Name:%s ID:%d\n", tag->id, swf_TagGetName(tag), id);
 
            enumerateUsedIDs_styles(tag, callback, callback_data, num);
+           DEBUG_ENUMERATE printf("-------\n");
            fillbits = swf_GetBits(tag, 4);
            linebits = swf_GetBits(tag, 4);
+           DEBUG_ENUMERATE printf("%d %d\n", fillbits, linebits);
            swf_ResetReadBits(tag);
            while(1) {
                int flags;
@@ -538,19 +553,28 @@ void enumerateUsedIDs(TAG * tag, int base, void (*callback)(TAG*, int, void*), v
                        break;
                    if(flags&1) { //move
                        int n = swf_GetBits(tag, 5); 
-                       swf_GetBits(tag, n); //x
-                       swf_GetBits(tag, n); //y
+                       int x,y;
+                       x = swf_GetBits(tag, n); //x
+                       y = swf_GetBits(tag, n); //y
+                       DEBUG_ENUMERATE printf("move %f %f\n",x/20.0,y/20.0);
                    }
                    if(flags&2) { //fill0
-                       swf_GetBits(tag, fillbits); 
+                       int fill0;
+                       fill0 = swf_GetBits(tag, fillbits); 
+                       DEBUG_ENUMERATE printf("fill0 %d\n", fill0);
                    }
                    if(flags&4) { //fill1
-                       swf_GetBits(tag, fillbits); 
+                       int fill1;
+                       fill1 = swf_GetBits(tag, fillbits); 
+                       DEBUG_ENUMERATE printf("fill1 %d\n", fill1);
                    }
                    if(flags&8) { //linestyle
-                       swf_GetBits(tag, linebits); 
+                       int line;
+                       line = swf_GetBits(tag, linebits); 
+                       DEBUG_ENUMERATE printf("linestyle %d\n",line);
                    }
                    if(flags&16) {
+                       DEBUG_ENUMERATE printf("more fillstyles\n");
                        enumerateUsedIDs_styles(tag, callback, callback_data, num);
                        fillbits = swf_GetBits(tag, 4);
                        linebits = swf_GetBits(tag, 4);
@@ -560,18 +584,24 @@ void enumerateUsedIDs(TAG * tag, int base, void (*callback)(TAG*, int, void*), v
                    if(flags) { //straight edge
                        int n = swf_GetBits(tag, 4) + 2;
                        if(swf_GetBits(tag, 1)) { //line flag
-                           swf_GetBits(tag, n); //delta x
-                           swf_GetBits(tag, n); //delta y
+                           int x,y;
+                           x = swf_GetSBits(tag, n); //delta x
+                           y = swf_GetSBits(tag, n); //delta y
+                           DEBUG_ENUMERATE printf("line %f %f\n",x/20.0,y/20.0);
                        } else {
                            int v=swf_GetBits(tag, 1);
-                           swf_GetBits(tag, n); //vert/horz
+                           int d;
+                           d = swf_GetSBits(tag, n); //vert/horz
+                           DEBUG_ENUMERATE printf("%s %f\n",v?"vertical":"horizontal", d/20.0);
                        }
                    } else { //curved edge
                        int n = swf_GetBits(tag, 4) + 2;
-                       swf_GetBits(tag, n);
-                       swf_GetBits(tag, n);
-                       swf_GetBits(tag, n);
-                       swf_GetBits(tag, n);
+                       int x1,y1,x2,y2;
+                       x1 = swf_GetSBits(tag, n);
+                       y1 = swf_GetSBits(tag, n);
+                       x2 = swf_GetSBits(tag, n);
+                       y2 = swf_GetSBits(tag, n);
+                       DEBUG_ENUMERATE printf("curve %f %f %f %f\n", x1/20.0, y1/20.0, x2/20.0, y2/20.0);
                    }
                }
            }
@@ -585,12 +615,14 @@ void enumerateUsedIDs(TAG * tag, int base, void (*callback)(TAG*, int, void*), v
 void callbackCount(TAG * t,int pos, void*ptr)
 {
     (*(int*)ptr)++;
+    DEBUG_ENUMERATE printf("callback(%d) %d\n", pos, *(U16*)&t->data[pos]);
 }
 
 void callbackFillin(TAG * t,int pos, void*ptr)
 {
     **(int**)ptr = pos;
     (*(int**)ptr)++;
+    DEBUG_ENUMERATE printf("callback(%d) %d\n", pos, *(U16*)&t->data[pos]);
 }
 
 int swf_GetNumUsedIDs(TAG * t)
@@ -606,3 +638,59 @@ void swf_GetUsedIDs(TAG * t, int * positions)
     enumerateUsedIDs(t, 0, callbackFillin, &ptr);
 }
 
+void swf_Relocate (SWF*swf, char*bitmap)
+{
+    TAG*tag;
+    int slaveids[65536];
+    memset(slaveids, -1, sizeof(slaveids));
+    tag = swf->firstTag;
+    while(tag)
+    {
+       int num; 
+       int *ptr;
+       int t;
+
+       if(swf_isDefiningTag(tag))
+       {
+           int newid;
+           int id;
+           
+           id = swf_GetDefineID(tag); //own id
+
+           if(!bitmap[id]) { //free
+               newid = id;
+           }
+           else {
+               newid = 0;
+               for (t=1;t<65536;t++)
+               {
+                   if(!bitmap[t])
+                   {
+                       newid = t;
+                       break;
+                   }
+               }
+           }
+           bitmap[newid] = 1;
+           slaveids[id] = newid;
+
+           swf_SetDefineID(tag, newid);
+       } 
+       
+       num = swf_GetNumUsedIDs(tag);
+       ptr = malloc(sizeof(int)*num);
+       swf_GetUsedIDs(tag, ptr);
+
+       for(t=0;t<num;t++) {
+           int id = GET16(&tag->data[ptr[t]]);
+           if(slaveids[id]<0) {
+               fprintf(stderr, "swf_Relocate: Mapping id never encountered before: %d\n", id);
+               return ;
+           }
+           id = slaveids[id];
+           PUT16(&tag->data[ptr[t]], id);
+       }
+       tag=tag->next;
+    }
+}
+