+int WriteExtraTags(SWF*swf, writer_t*writer)
+{
+ TAG*t = swf->firstTag;
+ TAG* has_fileattributes=0;
+ int has_scenedescription=0;
+ int has_version_8_action=0;
+ int has_version_9_action=0;
+ int len = 0;
+ while(t) {
+ if(t->id == ST_FILEATTRIBUTES)
+ has_fileattributes = t;
+ if(t->id == ST_SCENEDESCRIPTION)
+ has_scenedescription = 1;
+ if(t->id == ST_DOABC)
+ has_version_9_action=1;
+ /* FIXME: this doesn't yet find actionscript in buttons */
+ if(t->id == ST_DOACTION || t->id == ST_DOINITACTION)
+ has_version_8_action=1;
+ if(t->id == ST_PLACEOBJECT2 && t->len && (t->data[0]&0x80))
+ has_version_8_action=1;
+ t = t->next;
+ }
+ if(has_version_8_action && has_version_9_action) {
+ fprintf(stderr, "Warning: File contains both flash 8 and flash 9 actionscript\n");
+ }
+
+ if(swf->fileVersion >= 9) {
+ if(!has_fileattributes) {
+ U32 flags = swf->fileAttributes|0x08; // 16 = has symbolclass tag | 8 = actionscript3 | 1 = usenetwork
+ if(has_version_8_action && !has_version_9_action)
+ flags &= ~0x08;
+ TAG*fileattrib = swf_InsertTag(0, ST_FILEATTRIBUTES);
+ swf_SetU32(fileattrib, flags);
+ if(writer) {
+ if(swf_WriteTag2(writer, fileattrib)<0)
+ return -1;
+ } else {
+ len += swf_WriteTag(-1,fileattrib);
+ }
+ swf_DeleteTag(0, fileattrib);
+ } else {
+ if(swf_WriteTag2(writer, has_fileattributes)<0)
+ return -1;
+ }
+ if(!has_scenedescription) {
+ TAG*scene = swf_InsertTag(0, ST_SCENEDESCRIPTION);
+ swf_SetU16(scene, 1);
+ swf_SetString(scene, (U8*)"Scene 1");
+ swf_SetU8(scene, 0);
+ if(writer) {
+ if(swf_WriteTag2(writer, scene)<0)
+ return -1;
+ } else {
+ len += swf_WriteTag(-1,scene);
+ }
+ swf_DeleteTag(0, scene);
+ }
+ }
+ return len;
+}
+