X-Git-Url: http://git.asbjorn.biz/?a=blobdiff_plain;f=lib%2Fmodules%2Fswftools.c;h=37c8e8b2b11b362df2575420eed90f4f1f2a9b47;hb=e9dc83904a5df2c24cc62004be16cecdaea83797;hp=053acaf644594f11ecad8e6f643665363d04a0d1;hpb=196855b46ecbd65f92a971197954cc56d84f154c;p=swftools.git

diff --git a/lib/modules/swftools.c b/lib/modules/swftools.c
index 053acaf..37c8e8b 100644
--- a/lib/modules/swftools.c
+++ b/lib/modules/swftools.c
@@ -26,8 +26,11 @@
 #define S64 long long
 SFIXED RFXSWF_SP(SFIXED a1,SFIXED a2,SFIXED b1,SFIXED b2)
 { S64 a;
-  a = (S64)a1*(S64)b1+(S64)a2*(S64)b2;
-  return (SFIXED)(a>>16);
+  a = ((S64)a1*(S64)b1+(S64)a2*(S64)b2)>>16;
+  SFIXED result = (SFIXED)(a);
+  if(a!=result) 
+      fprintf(stderr, "Warning: overflow in matrix multiplication");
+  return result;
 }
 SFIXED RFXSWF_QFIX(int zaehler,int nenner) // bildet Quotient von zwei INTs in SFIXED
 { S64 z = zaehler<<16;
@@ -42,13 +45,14 @@ MATRIX * swf_MatrixJoin(MATRIX * d,MATRIX * s1,MATRIX * s2)
   if (!s1) return (s2)?(MATRIX *)memcpy(d,s2,sizeof(MATRIX)):NULL;
   if (!s2) return (MATRIX *)memcpy(d,s1,sizeof(MATRIX));
   
-  d->tx = s1->tx + s2->tx;
-  d->ty = s1->ty + s2->ty;
+  d->tx = s1->tx + RFXSWF_SP(s1->sx,s1->r1,s2->tx,s2->ty);
+  d->ty = s1->ty + RFXSWF_SP(s1->r0,s1->sy,s2->tx,s2->ty);
   
   d->sx = RFXSWF_SP(s1->sx,s1->r1,s2->sx,s2->r0);
-  d->sy = RFXSWF_SP(s1->r0,s1->sy,s2->r1,s2->sy);
   d->r0 = RFXSWF_SP(s1->r0,s1->sy,s2->sx,s2->r0);
+
   d->r1 = RFXSWF_SP(s1->sx,s1->r1,s2->r1,s2->sy);
+  d->sy = RFXSWF_SP(s1->r0,s1->sy,s2->r1,s2->sy);
 
   //DumpMatrix(NULL,d);
   
@@ -409,7 +413,7 @@ void swf_GetMorphGradient(TAG * tag, GRADIENT * gradient1, GRADIENT * gradient2)
 
 #define DEBUG_ENUMERATE if(0)
 
-static void enumerateUsedIDs_styles(TAG * tag, void (*callback)(TAG*, int, void*), void*callback_data, int num, int morph)
+void enumerateUsedIDs_styles(TAG * tag, void (*callback)(TAG*, int, void*), void*callback_data, int num, int morph)
 {
     U16 count;
     int t;
@@ -904,6 +908,30 @@ U8 swf_isShapeTag(TAG*tag)
     return 0;
 }
 
+U8 swf_isPlaceTag(TAG*tag)
+{
+    if(tag->id == ST_PLACEOBJECT ||
+       tag->id == ST_PLACEOBJECT2)
+        return 1;
+    return 0;
+}
+U8 swf_isTextTag(TAG*tag)
+{
+    if(tag->id == ST_DEFINETEXT ||
+       tag->id == ST_DEFINETEXT2)
+        return 1;
+    return 0;
+}
+
+U8 swf_isFontTag(TAG*tag)
+{
+    if(tag->id == ST_DEFINEFONT ||
+       tag->id == ST_DEFINEFONT2 ||
+       tag->id == ST_DEFINEFONTINFO)
+        return 1;
+    return 0;
+}
+
 U8  swf_isImageTag(TAG*tag)
 {
     if(tag->id == ST_DEFINEBITSJPEG || 
@@ -1113,3 +1141,22 @@ void swf_SetDefineBBox(TAG * tag, SRECT newbbox)
     }
 }
 
+RGBA swf_GetSWFBackgroundColor(SWF*swf)
+{
+    TAG*t=swf->firstTag;
+    RGBA color;
+    color.r = color.b = color.g = 0;
+    color.a = 255;
+    while(t) {
+	if(t->id == ST_SETBACKGROUNDCOLOR) {
+	    swf_SetTagPos(t, 0);
+	    color.r = swf_GetU8(t);
+	    color.g = swf_GetU8(t);
+	    color.b = swf_GetU8(t);
+	    break;
+	}
+	t=t->next;
+    }
+    return color;
+}
+