/* vi: set sts=2 sw=2 :*/
-
/* rfxswf.c
Library for creating and reading SWF files or parts of it.
Part of the swftools package.
- Copyright (c) 2000, 2001 Rainer Böhme <rfxswf@reflex-studio.de>
-
- This file is distributed under the GPL, see file COPYING for details
+ Copyright (c) 2000-2003 Rainer Böhme <rfxswf@reflex-studio.de>
+ Copyright (c) 2003 Matthias Kramm <kramm@quiss.org>
+
+ 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 */
#include "rfxswf.h"
TAG * swf_NextTag(TAG * t) { return t->next; }
TAG * swf_PrevTag(TAG * t) { return t->prev; }
-int swf_GetFrameNo(TAG * t) { return t->frame; }
U16 swf_GetTagID(TAG * t) { return t->id; }
U32 swf_GetTagLen(TAG * t) { return t->len; }
U8* swf_GetTagLenPtr(TAG * t) { return &(t->data[t->len]); }
void swf_GetRGB(TAG * t, RGBA * col)
{
RGBA dummy;
- if(!col);
+ if(!col)
col = &dummy;
col->r = swf_GetU8(t);
col->g = swf_GetU8(t);
}
}
+int swf_CountUBits(U32 v,int nbits)
+{ int n = 32;
+ U32 m = 0x80000000;
+ if(v == 0x00000000) n = 0;
+ else
+ while (!(v&m))
+ { n--;
+ m>>=1;
+ }
+ return (n>nbits)?n:nbits;
+}
+
int swf_CountBits(U32 v,int nbits)
{ int n = 33;
U32 m = 0x80000000;
- if (!v) n = 0; else
if (v&m)
- { while (v&m)
+ { if(v == 0xffffffff) n = 1;
+ else
+ while (v&m)
{ n--;
m>>=1;
- if (!m) break;
}
}
else
- { while (!(v&m))
+ { if(v == 0x00000000) n = 0;
+ else
+ while (!(v&m))
{ n--;
m>>=1;
- if (!m) break;
}
}
return (n>nbits)?n:nbits;
// Tag List Manipulating Functions
-int swf_UpdateFrame(TAG * t,S8 delta)
-// returns number of frames
-{ int res = -1;
- while (t)
- { t->frame+=delta;
- res = t->frame;
- t = t->next;
- }
- return res;
-}
-
-TAG * swf_InsertTag(TAG * after,U16 id) // updates frames, if nescessary
+TAG * swf_InsertTag(TAG * after,U16 id)
{ TAG * t;
t = (TAG *)malloc(sizeof(TAG));
t->id = id;
if (after)
- { t->frame = after->frame;
+ {
t->prev = after;
t->next = after->next;
after->next = t;
if (t->next) t->next->prev = t;
-
- if (id==ST_SHOWFRAME) swf_UpdateFrame(t->next,+1);
}
}
return t;
}
-TAG * swf_InsertTagBefore(SWF* swf, TAG * before,U16 id) // updates frames, if nescessary
+TAG * swf_InsertTagBefore(SWF* swf, TAG * before,U16 id)
{ TAG * t;
t = (TAG *)malloc(sizeof(TAG));
t->id = id;
if (before)
- { t->frame = before->frame;
+ {
t->next = before;
t->prev = before->prev;
before->prev = t;
if (t->prev) t->prev->next = t;
-
- if (id==ST_SHOWFRAME) swf_UpdateFrame(t->next,+1);
}
}
if(swf && swf->firstTag == before) {
int swf_DeleteTag(TAG * t)
{ if (!t) return -1;
- if (t->id==ST_SHOWFRAME) swf_UpdateFrame(t->next,-1);
-
if (t->prev) t->prev->next = t->next;
if (t->next) t->next->prev = t->prev;
}
if (id==ST_DEFINESPRITE) len = 2*sizeof(U16);
- // Sprite handling fix: Flaten sprite tree
+ // Sprite handling fix: Flatten sprite tree
t = (TAG *)malloc(sizeof(TAG));
}
if (prev)
- { t->frame = prev->frame+((prev->id==ST_SHOWFRAME)?1:0);
+ {
t->prev = prev;
prev->next = t;
}
void swf_FoldAll(SWF*swf)
{
TAG*tag = swf->firstTag;
+ //swf_DumpSWF(stdout, swf);
while(tag) {
- if(tag->id == ST_DEFINESPRITE)
+ if(tag->id == ST_DEFINESPRITE) {
swf_FoldSprite(tag);
+ //swf_DumpSWF(stdout, swf);
+ }
tag = swf_NextTag(tag);
}
}
{
struct writer_t writer;
swf->compressed = 0;
- if(handle<0)
+ if(handle<0) {
+ writer_init_nullwriter(&writer);
return swf_WriteSWF2(&writer, swf);
+ }
writer_init_filewriter(&writer, handle);
return swf_WriteSWF2(&writer, swf);
}
{
struct writer_t writer;
swf->compressed = 1;
- if(handle<0)
+ if(handle<0) {
+ writer_init_nullwriter(&writer);
return swf_WriteSWF2(&writer, swf);
+ }
writer_init_filewriter(&writer, handle);
return swf_WriteSWF2(&writer, swf);
}