Copyright (c) 2001 Rainer Böhme <rfxswf@reflex-studio.de>
- This file is distributed under the GPL, see file COPYING for details
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
-*/
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
#define PF_MOVE 0x01
#define PF_CHAR 0x02
#define PF_CXFORM 0x08
#define PF_RATIO 0x10
#define PF_NAME 0x20
-#define PF_CLIPACTION 0x40
+#define PF_CLIPDEPTH 0x40
+#define PF_ACTIONEVENT 0x80
-int ObjectPlace(TAG * t,U16 id,U16 depth,MATRIX * m,CXFORM * cx,U8 * name)
-{ U8 flags;
- if (!t) return -1;
+#define PF2_FILTERS 0x01
+#define PF2_BLENDMODE 0x02
+#define PF2_ASBITMAP 0x04
+//...
- flags = (id?PF_CHAR:0)|(m?PF_MATRIX:0)|(cx?PF_CXFORM:0)|(name?PF_NAME:0)|((m||cx)&&(!id)?PF_MOVE:0);
+char*blendModeNames[] = {"normal","normal2","layer","multiply",
+ "screen","lighten", "darken","add",
+ "substract","difference","invert","alpha",
+ "erase","overlay","hardlight",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 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;
}
-int PlaceObject(TAG * t,U16 id,U16 depth,MATRIX * m,CXFORM * cx,U8 * name, U16 clipaction)
-{ U8 flags;
+static int objectplace(TAG * t,U16 id,U16 depth,MATRIX * m,CXFORM * cx,U8 * name, U16 clipaction, U8 blendmode, FILTERLIST*filters)
+{ U8 flags,flags2;
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);
+ if(cx && id && 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;
+
+ if(m && id && isUnitMatrix(m))
+ m = 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_CLIPDEPTH:0);
+ flags2 = (0?PF2_ASBITMAP:0)|(blendmode?PF2_BLENDMODE:0)|(filters?PF2_FILTERS:0);
+
+ swf_SetU8(t,flags);
+ if(t->id == ST_PLACEOBJECT3)
+ swf_SetU8(t, flags2);
+ 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_CLIPDEPTH) swf_SetU16(t, clipaction);
+ if (flags&PF_NAME) swf_SetString(t,name);
+
+ if (flags2&PF2_BLENDMODE)
+ swf_SetU8(t,blendmode);
return 0;
}
+int swf_ObjectPlace(TAG * t,U16 id,U16 depth,MATRIX * m,CXFORM * cx,U8 * name)
+{
+ return objectplace(t,id,depth,m,cx,name,0,0,0);
+}
+int swf_ObjectPlaceClip(TAG * t,U16 id,U16 depth,MATRIX * m,CXFORM * cx,U8 * name, U16 clipaction)
+{
+ return objectplace(t,id,depth,m,cx,name,clipaction,0,0);
+}
+int swf_ObjectPlaceBlend(TAG * t,U16 id,U16 depth,MATRIX * m,CXFORM * cx,U8 * name, U8 blend)
+{
+ if(t->id != ST_PLACEOBJECT3)
+ fprintf(stderr, "wrong tag- ignoring blend mode\n");
+ return objectplace(t,id,depth,m,cx,name,0,blend,0);
+}
+int swf_ObjectMove(TAG * t,U16 depth,MATRIX * m,CXFORM * cx)
+{
+ return objectplace(t,0,depth,m,cx,0,0,0,0);
+}
+
+void swf_SetPlaceObject(TAG * t,SWFPLACEOBJECT* obj)
+{
+ 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 {
+ U8 flags,flags2;
+ 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_CLIPDEPTH:0);
+ flags2 = (0?PF2_ASBITMAP:0)|(obj->blendmode?PF2_BLENDMODE:0)|(obj->filters?PF2_FILTERS:0);
+
+ swf_SetU8(t,flags);
+ if(t->id == ST_PLACEOBJECT3)
+ swf_SetU8(t,flags2);
+ 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_CLIPDEPTH) swf_SetU16(t,obj->clipdepth);
+ if (flags&PF_NAME) swf_SetString(t,obj->name);
+
+ if (flags2&PF2_FILTERS) {
+ swf_SetU8(t,obj->filters->num);
+ int s;
+ for(s=0;s<obj->filters->num;s++)
+ swf_SetFilter(t,obj->filters->filter[s]);
+ }
+ if (flags2&PF2_BLENDMODE)
+ swf_SetU8(t,obj->blendmode);
+ if (flags&PF_ACTIONEVENT) {
+ // ...
+ }
+ }
+}
+
+void swf_GetPlaceObject(TAG * tag,SWFPLACEOBJECT* obj)
+{
+ if(!tag) {
+ memset(obj, 0, sizeof(SWFPLACEOBJECT));
+ swf_GetMatrix(0, &obj->matrix);
+ swf_GetCXForm(0, &obj->cxform, 1);
+ //obj->internal = PF_CHAR|PF_MATRIX|PF_CXFORM;
+ return;
+ }
+ swf_SetTagPos(tag, 0);
+
+ if(tag->id == ST_PLACEOBJECT) {
+ obj->id = swf_GetU16(tag);
+ obj->depth = swf_GetU16(tag);
+ swf_GetMatrix(tag, &obj->matrix);
+ swf_GetCXForm(tag, &obj->cxform, 0);
+ //obj->internal = PF_CHAR|PF_MATRIX|PF_CXFORM;
+ } else if(tag->id == ST_PLACEOBJECT2 || tag->id == ST_PLACEOBJECT3) {
+ U8 flags,flags2=0;
+ flags = swf_GetU8(tag);
+ if(tag->id == ST_PLACEOBJECT3)
+ flags2 = swf_GetU8(tag);
+ memset(obj,0,sizeof(SWFPLACEOBJECT));
+
+ swf_GetMatrix(0,&obj->matrix);
+ swf_GetCXForm(0,&obj->cxform,1);
+
+ obj->depth = swf_GetU16(tag);
+ //obj->internal = flags;
+ if(flags&PF_MOVE) obj->move = 1;
+ if(flags&PF_CHAR) obj->id = swf_GetU16(tag);
+ if(flags&PF_MATRIX) swf_GetMatrix(tag, &obj->matrix);
+ if(flags&PF_CXFORM) swf_GetCXForm(tag, &obj->cxform,1);
+ if(flags&PF_RATIO) obj->ratio = swf_GetU16(tag);
+ /* if you modify the order of these operations, also
+ modify it in ../src/swfcombine.c */
+ if(flags&PF_CLIPDEPTH)
+ obj->clipdepth = swf_GetU16(tag); //clip
+ if(flags&PF_NAME) {
+ int l,t;
+ U8*data;
+ swf_ResetReadBits(tag);
+ l = strlen((const char *)&tag->data[tag->pos]);
+ t = 0;
+ data = (U8*)rfx_alloc(l+1);
+ obj->name = data;
+ while((data[t++] = swf_GetU8(tag)));
+ }
+ if(flags2&PF2_BLENDMODE) {
+ obj->blendmode = swf_GetU8(tag);
+ }
-int ObjectMove(TAG * t,U16 depth,MATRIX * m,CXFORM * cx)
-{ return ObjectPlace(t,0,depth,m,cx,NULL);
+ /* Actionscript ignored (for now) */
+ obj->actions = 0;
+ } else {
+ fprintf(stderr, "rfxswf: Bad Tag: %d not a placeobject\n", tag->id);
+ }
}
+
+void swf_PlaceObjectFree(SWFPLACEOBJECT* obj)
+{
+ if(obj->name)
+ rfx_free(obj->name);
+}
+
git.asbjorn.biz / swftools.git / blobdiff