X-Git-Url: http://git.asbjorn.biz/?a=blobdiff_plain;f=lib%2Fmodules%2Fswfobject.c;h=37034135c73fe7ee729162916497d92a94f7885b;hb=589d78164f620b0af09413df7e91e7756467a3cd;hp=132f1169867f58a80be2bd5d297efa14f73c305a;hpb=fc554a43712b76d16b41ec77dd311b4a78b1ef6b;p=swftools.git

diff --git a/lib/modules/swfobject.c b/lib/modules/swfobject.c
index 132f116..3703413 100644
--- a/lib/modules/swfobject.c
+++ b/lib/modules/swfobject.c
@@ -1,59 +1,178 @@
-/* swfobject.c
-
-   Object place and move routines
-      
-   Extension module for the rfxswf library.
-   Part of the swftools package.
-
-   Copyright (c) 2001 Rainer Böhme <rfxswf@reflex-studio.de>
- 
-   This file is distributed under the GPL, see file COPYING for details 
-
-*/
-
-#define PF_MOVE         0x01
-#define PF_CHAR         0x02
-#define PF_MATRIX       0x04
-#define PF_CXFORM       0x08
-#define PF_RATIO        0x10
-#define PF_NAME         0x20
-#define PF_CLIPACTION   0x40
-
-int ObjectPlace(LPTAG t,U16 id,U16 depth,LPMATRIX m,LPCXFORM cx,U8 * name)
-{ U8 flags;
-  if (!t) return -1;
-
-  flags = (id?PF_CHAR:0)|(m?PF_MATRIX:0)|(cx?PF_CXFORM:0)|(name?PF_NAME:0)|((m||cx)&&(!id)?PF_MOVE:0);
-
-  SetU8(t,flags);
-  SetU16(t,depth);
-  if (flags&PF_CHAR) SetU16(t,id);
-  if (flags&PF_MATRIX) SetMatrix(t,m);
-  if (flags&PF_CXFORM) SetCXForm(t,cx,(cx->a0!=256)||(cx->a1));
-  if (flags&PF_RATIO) SetU16(t,0);
-  if (flags&PF_NAME) SetString(t,name);
-  
-  return 0; 
-}
-
-int PlaceObject(LPTAG t,U16 id,U16 depth,LPMATRIX m,LPCXFORM cx,U8 * name, U16 clipaction)
-{ U8 flags;
-  if (!t) return -1;
-
-  flags = (id?PF_CHAR:0)|(m?PF_MATRIX:0)|(cx?PF_CXFORM:0)|(name?PF_NAME:0)|
-          ((m||cx)&&(!id)?PF_MOVE:0)|(clipaction?PF_CLIPACTION:0);
-
-  SetU8(t,flags);
-  SetU16(t,depth);
-  if (flags&PF_CHAR) SetU16(t,id);
-  if (flags&PF_MATRIX) SetMatrix(t,m);
-  if (flags&PF_CXFORM) SetCXForm(t,cx,(cx->a0!=256)||(cx->a1));
-  if (flags&PF_RATIO) SetU16(t,0);
-  if (flags&PF_NAME) SetString(t,name);
-  if (flags&PF_CLIPACTION) SetU16(t, clipaction);
-  return 0; 
-}
-
-int ObjectMove(LPTAG t,U16 depth,LPMATRIX m,LPCXFORM cx)
-{ return ObjectPlace(t,0,depth,m,cx,NULL);
-}
+/* swfobject.c
+
+   Object place and move routines
+      
+   Extension module for the rfxswf library.
+   Part of the swftools package.
+
+   Copyright (c) 2001 Rainer Böhme <rfxswf@reflex-studio.de>
+ 
+   This file is distributed under the GPL, see file COPYING for details 
+
+*/
+
+#define PF_MOVE         0x01
+#define PF_CHAR         0x02
+#define PF_MATRIX       0x04
+#define PF_CXFORM       0x08
+#define PF_RATIO        0x10
+#define PF_NAME         0x20
+#define PF_CLIPACTION   0x40
+#define PF_ACTIONEVENT  0x80
+
+int swf_ObjectPlace(TAG * t,U16 id,U16 depth,MATRIX * m,CXFORM * cx,U8 * name)
+{ U8 flags;
+  if (!t) return -1;
+
+  if(cx && cx->r1==0 && cx->g1==0 && cx->b1==0 && cx->a1==0
+	&& cx->r0==256 && cx->g0==256 && cx->b0==256 && cx->a0==256)
+      cx = 0;
+
+  flags = (id?PF_CHAR:0)|(m?PF_MATRIX:0)|(cx?PF_CXFORM:0)|(name?PF_NAME:0)|((m||cx)&&(!id)?PF_MOVE:0);
+
+  swf_SetU8(t,flags);
+  swf_SetU16(t,depth);
+  if (flags&PF_CHAR) swf_SetU16(t,id);
+  if (flags&PF_MATRIX) swf_SetMatrix(t,m);
+  if (flags&PF_CXFORM) swf_SetCXForm(t,cx,1);
+  if (flags&PF_RATIO) swf_SetU16(t,0);
+  if (flags&PF_NAME) swf_SetString(t,name);
+  
+  return 0; 
+}
+
+int swf_ObjectPlaceClip(TAG * t,U16 id,U16 depth,MATRIX * m,CXFORM * cx,U8 * name, U16 clipaction)
+{ U8 flags;
+  if (!t) return -1;
+  
+  if(cx && cx->r1==0 && cx->g1==0 && cx->b1==0 && cx->a1==0
+	&& cx->r0==256 && cx->g0==256 && cx->b0==256 && cx->a0==256)
+      cx = 0;
+
+  flags = (id?PF_CHAR:0)|(m?PF_MATRIX:0)|(cx?PF_CXFORM:0)|(name?PF_NAME:0)|
+          ((m||cx)&&(!id)?PF_MOVE:0)|(clipaction?PF_CLIPACTION:0);
+
+  swf_SetU8(t,flags);
+  swf_SetU16(t,depth);
+  if (flags&PF_CHAR) swf_SetU16(t,id);
+  if (flags&PF_MATRIX) swf_SetMatrix(t,m);
+  if (flags&PF_CXFORM) swf_SetCXForm(t,cx,1);
+  if (flags&PF_RATIO) swf_SetU16(t,0);
+
+  /* ??? The spec states that name comes first? */
+  if (flags&PF_CLIPACTION) swf_SetU16(t, clipaction);
+  if (flags&PF_NAME) swf_SetString(t,name);
+  return 0; 
+}
+
+int swf_ObjectMove(TAG * t,U16 depth,MATRIX * m,CXFORM * cx)
+{ return swf_ObjectPlace(t,0,depth,m,cx,NULL);
+}
+
+int isUnitMatrix(MATRIX* m)
+{
+    /* a matrix with all zeros is also considered
+       "unit matrix", as a zeroed out MATRIX structure
+       usually means that the caller doesn't want to
+       set the matrix */
+    if((   (m->sx == 0x10000 && m->sy == 0x10000) 
+	|| (m->sx == 0 && m->sy == 0))
+		&& ((m->r0|m->r1|m->tx|m->ty) == 0)
+      )
+	return 1;
+    return 0;
+}
+
+int isUnitCXForm(CXFORM* cx)
+{
+    if((cx->a0==256 && cx->r0==256 && cx->g0==256 && cx->b0==256) &&
+       (cx->a1==0 && cx->r1==0 && cx->g1==0 && cx->b1==0))
+	return 1;
+    /* A CXForm of all zeros is, unfortunately, not as unlikely
+       as a matrix of all zeros. However, we still treat it
+       as non-existent/uniform transform */
+    if((cx->a0==0 && cx->r0==0 && cx->g0==0 && cx->b0==0) &&
+       (cx->a1==0 && cx->r1==0 && cx->g1==0 && cx->b1==0))
+	return 1;
+    return 0;
+}
+
+void swf_SetPlaceObject(TAG * t,SWFPLACEOBJECT* obj)
+{ 
+    U8 flags;
+    if (!t) return ;
+    if(t->id == ST_PLACEOBJECT) {
+	swf_SetU16(t, obj->id);
+	swf_SetU16(t, obj->depth);	
+	swf_SetMatrix(t, &obj->matrix);
+	swf_SetCXForm(t, &obj->cxform, 0);
+    } else {
+	int m = !isUnitMatrix(&obj->matrix);
+	int cx = !isUnitCXForm(&obj->cxform);
+
+	flags = (obj->id?PF_CHAR:0)|(m?PF_MATRIX:0)|(cx?PF_CXFORM:0)|(obj->ratio?PF_RATIO:0)|
+		(obj->name?PF_NAME:0)|(obj->move?PF_MOVE:0)|
+		(obj->clipdepth?PF_CLIPACTION:0);
+
+	swf_SetU8(t,flags);
+	swf_SetU16(t,obj->depth);
+	if (flags&PF_CHAR) swf_SetU16(t,obj->id);
+	if (flags&PF_MATRIX) swf_SetMatrix(t,&obj->matrix);
+	if (flags&PF_CXFORM) swf_SetCXForm(t,&obj->cxform,1);
+	if (flags&PF_RATIO) swf_SetU16(t,obj->ratio);
+  
+	/* ??? The spec states that name comes first? */
+	if (flags&PF_CLIPACTION) swf_SetU16(t,obj->clipdepth);
+	if (flags&PF_NAME) swf_SetString(t,obj->name);
+	if (flags&PF_ACTIONEVENT) {
+	    // ...
+	}
+    }
+}
+
+void swf_GetPlaceObject(TAG * tag,SWFPLACEOBJECT* obj)
+{
+    U8 flags;
+    if(!tag) {
+	memset(obj, 0, sizeof(SWFPLACEOBJECT));
+	swf_GetMatrix(0, &obj->matrix);
+	swf_GetCXForm(0, &obj->cxform, 1);
+	return;
+    }
+    
+    flags = swf_GetU8(tag);
+    memset(obj,0,sizeof(SWFPLACEOBJECT));
+	
+    swf_GetMatrix(0,&obj->matrix);
+    swf_GetCXForm(0,&obj->cxform,1);
+
+    obj->depth = swf_GetU16(tag);
+    //flags&1: move
+    if(flags&2) obj->id = swf_GetU16(tag);
+    if(flags&4) swf_GetMatrix(tag, &obj->matrix);
+    if(flags&8) swf_GetCXForm(tag, &obj->cxform,1);
+    if(flags&16) obj->ratio = swf_GetU16(tag);
+    if(flags&64) 
+	obj->clipdepth = swf_GetU16(tag); //clip
+    if(flags&32) {
+	int l,t;
+	U8*data;
+	swf_ResetReadBits(tag);
+	l = strlen(&tag->data[tag->pos]);
+	t = 0;
+	data = malloc(l+1);
+	obj->name = data;
+	while((data[t++] = swf_GetU8(tag))); 
+    }
+
+    /* Actionscript ignored (for now) */
+    obj->actions = 0;
+}
+
+void swf_PlaceObjectFree(SWFPLACEOBJECT* obj)
+{
+    if(obj->name)
+	free(obj->name);
+    free(obj);
+}
+