/* 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.
-#include "rfxswf.h"
+ 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.
-#ifdef HAVE_LIBJPEG
-#ifdef HAVE_JPEGLIB_H
-#define HAVE_BOOLEAN
-#include <jpeglib.h>
-#define _JPEGLIB_INCLUDED_
-#endif // HAVE_JPEGLIB_H
-#endif // HAVE_LIBJPEG
+ 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 */
-#ifdef HAVE_LIBZ
-#ifdef HAVE_ZLIB_H
+#include "mem.h"
+#include "rfxswf.h"
+#ifdef HAVE_ZLIB
#include <zlib.h>
-#define _ZLIB_INCLUDED_
-#endif // HAVE_ZLIB_H
-#endif // HAVE_LIBZ
+#endif // HAVE_ZLIB
-#define LAME
+#ifndef RFXSWF_DISABLESOUND
+#ifdef HAVE_LAME
#include "lame/lame.h"
+#endif
+#endif
+
+#ifdef HAVE_TIME_H
+#include <time.h>
+#endif
+
+#ifdef HAVE_IO_H
+#include <io.h>
+#endif
#include "./bitio.h"
+#include "./MD5.h"
+#include "./os.h"
// internal constants
#define MEMSIZE(l) (((l/MALLOC_SIZE)+1)*MALLOC_SIZE)
-
// inline wrapper functions
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]); }
U32 swf_GetTagPos(TAG * t) { return t->pos; }
-// Basic Data Access Functions
-
-#define swf_ResetReadBits(tag) if (tag->readBit) { tag->pos++; tag->readBit = 0; }
-#define swf_ResetWriteBits(tag) if (tag->writeBit) { tag->writeBit = 0; }
-
-// for future purpose: avoid high level lib functions to change tagpos/bitpos
-
-#define swf_SaveTagPos(tag)
-#define swf_RestoreTagPos(tag)
-
void swf_SetTagPos(TAG * t,U32 pos)
{ swf_ResetReadBits(t);
if (pos<=t->len) t->pos = pos;
- #ifdef DEBUG_RFXSWF
- else fprintf(stderr,"SetTagPos() out of bounds: TagID = %i\n",t->id);
- #endif
+ else {
+#ifdef DEBUG_RFXSWF
+ fprintf(stderr,"SetTagPos(%d) out of bounds: TagID = %i\n",pos, t->id);
+#endif
+ }
+}
+
+char* swf_GetString(TAG*t)
+{
+ int pos = t->pos;
+ while(t->pos < t->len && swf_GetU8(t));
+ /* make sure we always have a trailing zero byte */
+ if(t->pos == t->len) {
+ if(t->len == t->memsize) {
+ swf_ResetWriteBits(t);
+ swf_SetU8(t, 0);
+ t->len = t->pos;
+ }
+ t->data[t->len] = 0;
+ }
+ return (char*)&(t->data[pos]);
}
U8 swf_GetU8(TAG * t)
{ swf_ResetReadBits(t);
#ifdef DEBUG_RFXSWF
- if (t->pos>=t->len)
+ if ((int)t->pos>=(int)t->len)
{ fprintf(stderr,"GetU8() out of bounds: TagID = %i\n",t->id);
+ *(int*)0=0;
return 0;
}
#endif
{ U16 res;
swf_ResetReadBits(t);
#ifdef DEBUG_RFXSWF
- if (t->pos>(t->len-2))
+ if ((int)t->pos>((int)t->len-2))
{ fprintf(stderr,"GetU16() out of bounds: TagID = %i\n",t->id);
return 0;
}
{ U32 res;
swf_ResetReadBits(t);
#ifdef DEBUG_RFXSWF
- if (t->pos>(t->len-4))
+ if ((int)t->pos>((int)t->len-4))
{ fprintf(stderr,"GetU32() out of bounds: TagID = %i\n",t->id);
return 0;
}
return l;
}
-int swf_SetBlock(TAG * t,U8 * b,int l)
+int swf_SetBlock(TAG * t,const U8 * b,int l)
// Appends Block to the end of Tagdata, returns size
{ U32 newlen = t->len + l;
swf_ResetWriteBits(t);
if (newlen>t->memsize)
{ U32 newmem = MEMSIZE(newlen);
- U8 * newdata = (U8*)((t->data)?realloc(t->data,newmem):malloc(newmem));
- if (!newdata)
- {
- #ifdef DEBUG_RFXSWF
- fprintf(stderr,"Fatal Error: malloc()/realloc() failed (1). (%d bytes)\n", newmem);
- *(int*)0=0;
- #endif
- return 0;
- }
+ U8 * newdata = (U8*)(rfx_realloc(t->data,newmem));
t->memsize = newmem;
t->data = newdata;
}
t->data[t->len++] = a[1];
return 0;
}
+void swf_SetS16(TAG * t,int v)
+{
+ if(v>32767 || v<-32768) {
+ #ifdef DEBUG_RFXSWF
+ fprintf(stderr, "Warning: S16 overflow: %d\n", v);
+ #endif
+ }
+ swf_SetU16(t, (S16)v);
+}
int swf_SetU32(TAG * t,U32 v)
{ U8 a[4];
if (!t->readBit) t->readBit = 0x80;
while (nbits)
{ res<<=1;
+#ifdef DEBUG_RFXSWF
+ if (t->pos>=t->len)
+ { fprintf(stderr,"GetBits() out of bounds: TagID = %i, pos=%d, len=%d\n",t->id, t->pos, t->len);
+ int i,m=t->len>10?10:t->len;
+ for(i=-1;i<m;i++) {
+ fprintf(stderr, "(%d)%02x ", i, t->data[i]);
+ }
+ fprintf(stderr, "\n");
+ return res;
+ }
+#endif
if (t->data[t->pos]&t->readBit) res|=1;
t->readBit>>=1;
nbits--;
if (!t->readBit)
{ if (nbits) t->readBit = 0x80;
- #ifdef DEBUG_RFXSWF
- if (t->pos>=t->len)
- { fprintf(stderr,"GetBits() out of bounds: TagID = %i\n",t->id);
- return res;
- }
- #endif
t->pos++;
}
}
return (S32)res;
}
-U32 reader_GetBits(struct reader_t*reader, int nbits)
+U32 reader_GetBits(reader_t*reader, int nbits)
{ return reader_readbits(reader, nbits);
}
-S32 reader_GetSBits(struct reader_t*reader, int nbits)
+S32 reader_GetSBits(reader_t*reader, int nbits)
{ U32 res = reader_readbits(reader, nbits);
if (res&(1<<(nbits-1))) res|=(0xffffffff<<nbits);
return (S32)res;
// Advanced Data Access Functions
+double swf_GetFixed(TAG * t)
+{
+ U16 low = swf_GetU16(t);
+ U16 high = swf_GetU16(t);
+ return high + low*(1/65536.0);
+}
+void swf_SetFixed(TAG * t, double f)
+{
+ U16 fr = (U16)((f-(int)f)*65536);
+ swf_SetU16(t, fr);
+ swf_SetU16(t, (U16)f - (f<0 && fr!=0));
+}
+float swf_GetFixed8(TAG * t)
+{
+ U8 low = swf_GetU8(t);
+ U8 high = swf_GetU8(t);
+ return (float)(high + low*(1/256.0));
+}
+void swf_SetFixed8(TAG * t, float f)
+{
+ U8 fr = (U8)((f-(int)f)*256);
+ swf_SetU8(t, fr);
+ swf_SetU8(t, (U8)f - (f<0 && fr!=0));
+}
+
+U32 swf_GetU30(TAG*tag)
+{
+ U32 shift = 0;
+ U32 s = 0;
+ int nr=0;
+ while(1) {
+ U8 b = swf_GetU8(tag);
+ nr++;
+ s|=(b&127)<<shift;
+ shift+=7;
+ if(!(b&128) || shift>=32)
+ break;
+ }
+ /*int nr2= swf_SetU30(0, s);
+ if(nr!=nr2) {
+ printf("Unsigned value %d stored in %d bytes, I'd store it in %d bytes\n", s, nr, nr2);
+ }*/
+ return s;
+}
+
+int swf_SetU30(TAG*tag, U32 u)
+{
+ int nr = 0;
+ do {
+ if(tag)
+ swf_SetU8(tag, (u&~0x7f?0x80:0) | (u&0x7F));
+ u>>=7;
+ nr++;
+ } while(u);
+ return nr;
+}
+
+void swf_SetABCU32(TAG*tag, U32 u)
+{
+ do {
+ swf_SetU8(tag, (u&~0x7f?0x80:0) | (u&0x7F));
+ u>>=7;
+ } while(u);
+}
+U32 swf_GetABCU32(TAG*tag)
+{
+ return swf_GetU30(tag);
+}
+void swf_SetABCS32(TAG*tag, S32 v)
+{
+ swf_SetABCU32(tag, v);
+}
+S32 swf_GetABCS32(TAG*tag)
+{
+ return swf_GetABCU32(tag);
+}
+
+#if 0
+
+/*The AVM2 spec is just plain wrong, claiming that S32 values are sign
+extended. They're not.
+This wastes up to 4 bytes for every negative value. */
+
+void swf_SetABCS32(TAG*tag, S32 s)
+{
+ printf("write S32: %d\n", s);
+ S32 neg = s<0?-1:0;
+ U8 sign = s<0?0x40:0;
+ while(1) {
+ U8 val = s&0x7f;
+ U8 vsign = s&0x40;
+ s>>=7;
+ neg>>=7;
+ if(s==neg && vsign==sign) {
+ /* if the value we now write has the same sign as s
+ and all the remaining bits are equal to the sign of s
+ too, stop writing */
+ swf_SetU8(tag, val);
+ printf("put %02x\n", val);
+ break;
+ } else {
+ swf_SetU8(tag, 0x80 | val);
+ printf("put %02x\n", 0x80|val);
+ }
+ };
+}
+int swf_GetS30(TAG*tag)
+{
+ U32 shift = 0;
+ U32 s = 0;
+ int nr=0;
+ while(1) {
+ U8 b = swf_GetU8(tag);
+ nr++;
+ nt i,m=t->len>10?10:t->len;
+ for(i=0;i<m;i++) {
+ fprintf(stderr, "%02x ", t->data[i]);
+ }
+ fprintf(stderr, "\n");
+ s|=(b&127)<<shift;
+ shift+=7;
+ if(!(b&128) || shift>=32) {
+ if(b&64) {
+ if(shift<32)
+ s|=0xffffffff<<shift;
+ }
+ break;
+ }
+ }
+ /* It's not uncommon for other applications (Flex for all negative numbers, and
+ Flash for -1) to generate a lot more bytes than would be necessary.
+ int nr2= swf_SetS30(0, s);
+ if(nr!=nr2) {
+ printf("Signed value %d stored in %d bytes, I'd store it in %d bytes\n", s, nr, nr2);
+ }*/
+ return s;
+}
+#endif
+
+int swf_SetU30String(TAG*tag, const char*str, int l)
+{
+ int len=0;
+ len+=swf_SetU30(tag, l);
+ len+=l;
+ swf_SetBlock(tag, (void*)str, l);
+ return len;
+}
+
+float swf_GetF16(TAG * t)
+{
+ U16 f1 = swf_GetU16(t);
+ if(!(f1&0x3ff)) return 0.0;
+
+ // IEEE 16 is 1-5-10
+ // IEEE 32 is 1-8-23
+ /* gcc 4.1.2 seems to require a union here. *(float*)u doesn't work */
+ union {
+ U32 u;
+ float f;
+ } f2;
+
+ U16 e = (f1>>10)&0x1f;
+ U16 m = f1&0x3ff;
+ /* find highest bit in mantissa */
+ int h=0;
+ while(!(m&0x400)) {
+ m<<=1;
+ h++;
+ }
+ m&=0x3ff;
+ e -= h;
+ e += 0x6f;
+
+ f2.u = (f1&0x8000)<<16; //sign
+ f2.u |= e<<23; //exponent
+ f2.u |= m<<13; //mantissa
+ return *(float*)&f2;
+}
+
+void swf_SetF16(TAG * t, float f)
+{
+ union {
+ U32 u;
+ float f;
+ } v;
+ v.f = f;
+
+ U16 result = (v.u>>16)&0x8000; //sign
+ int exp = ((v.u>>23)&0xff)-0x7f+0x10;
+ U16 m = (v.u>>13)&0x3ff;
+ //fprintf(stderr, "%f: %04x sign, %d exp, %04x mantissa\n", f, result, exp, m);
+ if(exp<-10) {
+ // underflow (clamp to 0.0)
+ exp = 0;
+ m = 0;
+ } else if(exp<0) {
+ // partial underflow- strip some bits
+ m = (m|0x400)>>-exp;
+ exp = 0;
+ } else if(exp>=32) {
+ exp = 31;
+ m = 0x3ff;
+ fprintf(stderr, "Exponent overflow in FLOAT16 encoding\n");
+ } else {
+ exp++;
+ m = (m>>1)|0x200;
+ }
+ result |= exp<<10;
+ result |= m;
+ swf_SetU16(t, result);
+}
+
+float F16toFloat(U16 x)
+{
+ TAG t;
+ t.data = (void*)&x;
+ t.readBit = 0;
+ t.pos = 0;
+ t.len = 2;
+ return swf_GetF16(&t);
+}
+
+float floatToF16(float f)
+{
+ U16 u = 0;
+ TAG t;
+ t.data = (void*)&u;
+ t.len = 0;
+ t.memsize = 2;
+ t.writeBit = 0;
+ swf_SetF16(&t, f);
+ return u;
+}
+
+double swf_GetD64(TAG*tag)
+{
+ /* FIXME: this is not big-endian compatible */
+ double value = *(double*)&tag->data[tag->pos];
+ swf_GetU32(tag);
+ swf_GetU32(tag);
+ return value;
+}
+int swf_SetD64(TAG*tag, double v)
+{
+ /* FIXME: this is not big-endian compatible */
+ swf_SetU32(tag, ((U32*)&v)[0]);
+ swf_SetU32(tag, ((U32*)&v)[1]);
+ return 8;
+}
+int swf_GetU24(TAG*tag)
+{
+ int b1 = swf_GetU8(tag);
+ int b2 = swf_GetU8(tag);
+ int b3 = swf_GetU8(tag);
+ return b3<<16|b2<<8|b1;
+}
+int swf_GetS24(TAG*tag)
+{
+ int b1 = swf_GetU8(tag);
+ int b2 = swf_GetU8(tag);
+ int b3 = swf_GetU8(tag);
+ if(b3&0x80) {
+ return -1-((b3<<16|b2<<8|b1)^0xffffff);
+ } else {
+ return b3<<16|b2<<8|b1;
+ }
+}
+int swf_SetU24(TAG*tag, U32 v)
+{
+ if(tag) {
+ if(v&0xff000000)
+ fprintf(stderr, "Error: Overflow in swf_SetU24()\n");
+ swf_SetU8(tag, v);
+ swf_SetU8(tag, v>>8);
+ swf_SetU8(tag, v>>16);
+ }
+ return 3;
+}
+int swf_SetS24(TAG*tag, U32 v)
+{
+ if(tag) {
+ if(!(v&0xff000000))
+ return swf_SetU24(tag, v);
+ if((v&0xff000000)!=0xff000000) {
+ fprintf(stderr, "Error: Overflow in swf_SetS24()\n");
+ }
+ swf_SetU8(tag, v);
+ swf_SetU8(tag, v>>8);
+ swf_SetU8(tag, v>>16);
+ }
+ return 3;
+}
+
+
int swf_SetRGB(TAG * t,RGBA * col)
{ if (!t) return -1;
if (col)
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);
void swf_GetRGBA(TAG * t, RGBA * col)
{
RGBA dummy;
- if(!col);
+ if(!col)
col = &dummy;
col->r = swf_GetU8(t);
col->g = swf_GetU8(t);
void swf_GetGradient(TAG * tag, GRADIENT * gradient, char alpha)
{
- GRADIENT dummy;
int t;
- if(!gradient)
- gradient = &dummy;
- gradient->num = swf_GetU8(tag);
- for(t=0;t<gradient->num;t++)
+ if(!tag) {
+ memset(gradient, 0, sizeof(GRADIENT));
+ return;
+ }
+ U8 num = swf_GetU8(tag) & 15;
+ if(gradient) {
+ gradient->num = num;
+ gradient->rgba = (RGBA*)rfx_calloc(sizeof(RGBA)*gradient->num);
+ gradient->ratios = (U8*)rfx_calloc(sizeof(gradient->ratios[0])*gradient->num);
+ }
+ for(t=0;t<num;t++)
{
- int s=t;
- if(s>=8) //FIXME
- s=7;
- gradient->ratios[t] = swf_GetU8(tag);
+ U8 ratio = swf_GetU8(tag);
+ RGBA color;
if(!alpha)
- swf_GetRGB(tag, &gradient->rgba[t]);
+ swf_GetRGB(tag, &color);
else
- swf_GetRGBA(tag, &gradient->rgba[t]);
+ swf_GetRGBA(tag, &color);
+ if(gradient) {
+ gradient->ratios[t] = ratio;
+ gradient->rgba[t] = color;
+ }
}
}
+void swf_SetGradient(TAG * tag, GRADIENT * gradient, char alpha)
+{
+ int t;
+ if(!tag) {
+ memset(gradient, 0, sizeof(GRADIENT));
+ return;
+ }
+ swf_SetU8(tag, gradient->num);
+ for(t=0; t<8 && t<gradient->num; t++)
+ {
+ swf_SetU8(tag, gradient->ratios[t]);
+ if(!alpha)
+ swf_SetRGB(tag, &gradient->rgba[t]);
+ else
+ swf_SetRGBA(tag, &gradient->rgba[t]);
+ }
+}
+
+void swf_FreeGradient(GRADIENT* gradient)
+{
+ if(gradient->ratios)
+ rfx_free(gradient->ratios);
+ if(gradient->rgba)
+ rfx_free(gradient->rgba);
+ memset(gradient, 0, sizeof(GRADIENT));
+}
+
+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;
int swf_GetRect(TAG * t,SRECT * r)
{ int nbits;
SRECT dummy;
+ if(!t) {r->xmin=r->xmax=r->ymin=r->ymax=0;return 0;}
if (!r) r = &dummy;
nbits = (int) swf_GetBits(t,5);
r->xmin = swf_GetSBits(t,nbits);
return 0;
}
-int reader_GetRect(struct reader_t*reader,SRECT * r)
+int reader_GetRect(reader_t*reader,SRECT * r)
{ int nbits;
SRECT dummy;
if (!r) r = &dummy;
nbits = swf_CountBits(r->ymin,nbits);
nbits = swf_CountBits(r->ymax,nbits);
if(nbits>=32) {
+ #ifdef DEBUG_RFXSWF
fprintf(stderr, "rfxswf: Warning: num_bits overflow in swf_SetRect\n");
+ #endif
nbits=31;
}
return 0;
}
+SRECT swf_ClipRect(SRECT border, SRECT r)
+{
+ if(r.xmax > border.xmax) r.xmax = border.xmax;
+ if(r.ymax > border.ymax) r.ymax = border.ymax;
+ if(r.xmax < border.xmin) r.xmax = border.xmin;
+ if(r.ymax < border.ymin) r.ymax = border.ymin;
+
+ if(r.xmin > border.xmax) r.xmin = border.xmax;
+ if(r.ymin > border.ymax) r.ymin = border.ymax;
+ if(r.xmin < border.xmin) r.xmin = border.xmin;
+ if(r.ymin < border.ymin) r.ymin = border.ymin;
+ return r;
+}
+
+void swf_ExpandRect(SRECT*src, SPOINT add)
+{
+ if((src->xmin | src->ymin | src->xmax | src->ymax)==0) {
+ src->xmin = add.x;
+ src->ymin = add.y;
+ src->xmax = add.x;
+ src->ymax = add.y;
+ if((add.x|add.y) == 0) src->xmax++; //make sure the bbox is not NULL anymore
+ return;
+ }
+ if(add.x < src->xmin)
+ src->xmin = add.x;
+ if(add.x > src->xmax)
+ src->xmax = add.x;
+ if(add.y < src->ymin)
+ src->ymin = add.y;
+ if(add.y > src->ymax)
+ src->ymax = add.y;
+}
+void swf_ExpandRect2(SRECT*src, SRECT*add)
+{
+ if((add->xmin | add->ymin | add->xmax | add->ymax)==0)
+ return;
+ if((src->xmin | src->ymin | src->xmax | src->ymax)==0)
+ *src = *add;
+ if(add->xmin < src->xmin)
+ src->xmin = add->xmin;
+ if(add->ymin < src->ymin)
+ src->ymin = add->ymin;
+ if(add->xmax > src->xmax)
+ src->xmax = add->xmax;
+ if(add->ymax > src->ymax)
+ src->ymax = add->ymax;
+}
+void swf_ExpandRect3(SRECT*src, SPOINT center, int radius)
+{
+ if((src->xmin | src->ymin | src->xmax | src->ymax)==0) {
+ src->xmin = center.x-radius;
+ src->ymin = center.y-radius;
+ src->xmax = center.x+radius;
+ src->ymax = center.y+radius;
+ if((center.x|center.y|radius) == 0) src->xmax++; //make sure the bbox is not NULL anymore
+ return;
+ }
+ if(center.x - radius < src->xmin)
+ src->xmin = center.x - radius;
+ if(center.x + radius > src->xmax)
+ src->xmax = center.x + radius;
+ if(center.y - radius < src->ymin)
+ src->ymin = center.y - radius;
+ if(center.y + radius > src->ymax)
+ src->ymax = center.y + radius;
+}
+SPOINT swf_TurnPoint(SPOINT p, MATRIX* m)
+{
+ SPOINT r;
+ r.x = (int)(m->sx*(1/65536.0)*p.x + m->r1*(1/65536.0)*p.y + 0.5) + m->tx;
+ r.y = (int)(m->r0*(1/65536.0)*p.x + m->sy*(1/65536.0)*p.y + 0.5) + m->ty;
+ return r;
+}
+SRECT swf_TurnRect(SRECT r, MATRIX* m)
+{
+ SRECT g;
+ SPOINT p1,p2,p3,p4,pp1,pp2,pp3,pp4;
+ if(!m)
+ return r;
+ p1.x = r.xmin;p1.y = r.ymin;
+ p2.x = r.xmax;p2.y = r.ymin;
+ p3.x = r.xmin;p3.y = r.ymax;
+ p4.x = r.xmax;p4.y = r.ymax;
+ pp1 = swf_TurnPoint(p1, m);
+ pp2 = swf_TurnPoint(p2, m);
+ pp3 = swf_TurnPoint(p3, m);
+ pp4 = swf_TurnPoint(p4, m);
+ g.xmin = g.xmax = pp1.x;
+ g.ymin = g.ymax = pp1.y;
+ swf_ExpandRect(&g, pp2);
+ swf_ExpandRect(&g, pp3);
+ swf_ExpandRect(&g, pp4);
+ return g;
+}
+
+
int swf_GetMatrix(TAG * t,MATRIX * m)
{ MATRIX dummy;
int nbits;
nbits = swf_CountBits(m->sx,0);
nbits = swf_CountBits(m->sy,nbits);
if(nbits>=32) {
+ /* TODO: happens on AMD64 systems for normal values? */
+ #ifdef DEBUG_RFXSWF
fprintf(stderr,"rfxswf: Error: matrix values too large\n");
+ #endif
nbits = 31;
}
swf_SetBits(t,nbits,5);
nbits = swf_CountBits(m->r0,0);
nbits = swf_CountBits(m->r1,nbits);
if(nbits>=32) {
+ #ifdef DEBUG_RFXSWF
fprintf(stderr,"rfxswf: Error: matrix values too large\n");
+ #endif
nbits = 31;
}
swf_SetBits(t,nbits,5);
nbits = swf_CountBits(m->tx,0);
nbits = swf_CountBits(m->ty,nbits);
if(nbits>=32) {
+ #ifdef DEBUG_RFXSWF
fprintf(stderr,"rfxswf: Error: matrix values too large\n");
+ #endif
nbits = 31;
}
swf_SetBits(t,nbits,5);
return 0;
}
-int swf_GetCXForm(TAG * t,CXFORM * cx,U8 alpha) //FIXME: alpha should be type bool
+int swf_GetCXForm(TAG * t,CXFORM * cx,U8 alpha)
{ CXFORM cxf;
int hasadd;
int hasmul;
return 0;
}
-int swf_GetPoint(TAG * t,SPOINT * p) { return 0; }
-int swf_SetPoint(TAG * t,SPOINT * p) { return 0; }
+//int swf_GetPoint(TAG * t,SPOINT * p) { return 0; }
+//int swf_SetPoint(TAG * t,SPOINT * p) { return 0; }
+
+void swf_SetPassword(TAG * t, const char * password)
+{
+ /* WARNING: crypt_md5 is not reentrant */
+ char salt[3];
+ char* md5string;
+
+#if defined(HAVE_LRAND48) && defined(HAVE_SRAND48) && defined(HAVE_TIME_H) && defined(HAVE_TIME)
+ srand48(time(0));
+ salt[0] = "abcdefghijklmnopqrstuvwxyz0123456789"[lrand48()%36];
+ salt[1] = "abcdefghijklmnopqrstuvwxyz0123456789"[lrand48()%36];
+#else
+ salt[0] = 'l';
+ salt[1] = '8';
+ fprintf(stderr, "rfxswf: Warning- no usable random generator found\n");
+ fprintf(stderr, "Your password will be vulnerable to dictionary attacks\n");
+#endif
+ salt[2] = 0;
+
+ md5string = crypt_md5(password, salt);
+
+ swf_SetU16(t,0);
+ swf_SetString(t, md5string);
+}
+
+void swf_SetString(TAG*t, const char* s)
+{
+ if(!s) {
+ swf_SetU8(t, 0);
+ } else {
+ swf_SetBlock(t,(U8*)s,strlen(s)+1);
+ }
+}
+
+int swf_VerifyPassword(TAG * t, const char * password)
+{
+ char*md5string1, *md5string2;
+ char*x;
+ char*salt;
+ int n;
+
+ if(t->len >= 5 && t->pos==0 &&
+ t->data[0] == 0 &&
+ t->data[1] == 0) {
+ swf_GetU16(t);
+ } else {
+ printf("%d %d %d %d\n", t->len, t->pos, t->data[0], t->data[1]);
+ }
+
+ md5string1 = swf_GetString(t);
+
+ if(strncmp(md5string1, "$1$",3 )) {
+ fprintf(stderr, "rfxswf: no salt in pw string\n");
+ return 0;
+ }
+ x = strchr(md5string1+3, '$');
+ if(!x) {
+ fprintf(stderr, "rfxswf: invalid salt format in pw string\n");
+ return 0;
+ }
+ n = x-(md5string1+3);
+ salt = (char*)rfx_alloc(n+1);
+ memcpy(salt, md5string1+3, n);
+ salt[n] = 0;
+
+ md5string2 = crypt_md5(password, salt);
+ rfx_free(salt);
+ if(strcmp(md5string1, md5string2) != 0)
+ return 0;
+ return 1;
+}
// 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;
+TAG * swf_InsertTag(TAG * after,U16 id)
+{ TAG * t;
+
+ t = (TAG *)rfx_calloc(sizeof(TAG));
+ t->id = id;
+
+ if (after)
+ {
+ t->prev = after;
+ t->next = after->next;
+ after->next = t;
+ if (t->next) t->next->prev = t;
}
- return res;
+ return t;
}
-TAG * swf_InsertTag(TAG * after,U16 id) // updates frames, if nescessary
+TAG * swf_InsertTagBefore(SWF* swf, TAG * before,U16 id)
{ TAG * t;
- t = (TAG *)malloc(sizeof(TAG));
- if (t)
- { memset(t,0x00,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);
- }
+ t = (TAG *)rfx_calloc(sizeof(TAG));
+ t->id = id;
+
+ if (before)
+ {
+ t->next = before;
+ t->prev = before->prev;
+ before->prev = t;
+ if (t->prev) t->prev->next = t;
+ }
+ if(swf && swf->firstTag == before) {
+ swf->firstTag = t;
}
return t;
}
-int swf_DeleteTag(TAG * t)
-{ if (!t) return -1;
+void swf_ClearTag(TAG * t)
+{
+ if (t->data) rfx_free(t->data);
+ t->data = 0;
+ t->pos = 0;
+ t->len = 0;
+ t->readBit = 0;
+ t->writeBit = 0;
+ t->memsize = 0;
+}
- if (t->id==ST_SHOWFRAME) swf_UpdateFrame(t->next,-1);
-
+void swf_ResetTag(TAG*tag, U16 id)
+{
+ tag->len = tag->pos = tag->readBit = tag->writeBit = 0;
+ tag->id = id;
+}
+
+TAG* swf_CopyTag(TAG*tag, TAG*to_copy)
+{
+ tag = swf_InsertTag(tag, to_copy->id);
+ swf_SetBlock(tag, to_copy->data, to_copy->len);
+ return tag;
+}
+
+TAG* swf_DeleteTag(SWF*swf, TAG * t)
+{
+ TAG*next = t->next;
+
+ if (swf && swf->firstTag==t)
+ swf->firstTag = t->next;
if (t->prev) t->prev->next = t->next;
if (t->next) t->next->prev = t->prev;
- if (t->data) free(t->data);
- free(t);
- return 0;
+ if (t->data) rfx_free(t->data);
+ rfx_free(t);
+ return next;
}
-TAG * swf_ReadTag(struct reader_t*reader, TAG * prev)
+TAG * swf_ReadTag(reader_t*reader, TAG * prev)
{ TAG * t;
U16 raw;
U32 len;
if (len==0x3f)
{
- if (reader->read(reader, &len, 4) != 4) return NULL;
- len = SWAP32(len);
+ len = reader_readU32(reader);
}
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 (!t)
- {
- #ifdef DEBUG_RFXSWF
- fprintf(stderr,"Fatal Error: malloc()/realloc() failed (2). (%d bytes)\n", sizeof(TAG));
- #endif
- return NULL;
- }
-
- memset(t,0x00,sizeof(TAG));
+ t = (TAG *)rfx_calloc(sizeof(TAG));
t->len = len;
t->id = id;
if (t->len)
- { t->data = (U8*)malloc(t->len);
- if (!t->data)
- {
+ { t->data = (U8*)rfx_alloc(t->len);
+ t->memsize = t->len;
+ if (reader->read(reader, t->data, t->len) != t->len) {
#ifdef DEBUG_RFXSWF
- fprintf(stderr,"Fatal Error: malloc()/realloc() failed (3). (%d bytes)\n", t->len);
+ fprintf(stderr, "rfxswf: Warning: Short read (tagid %d). File truncated?\n", t->id);
#endif
+ free(t->data);t->data=0;
+ free(t);
return NULL;
}
- t->memsize = t->len;
- if (reader->read(reader, t->data, t->len) != t->len) return NULL;
}
if (prev)
- { t->frame = prev->frame+((prev->id==ST_SHOWFRAME)?1:0);
+ {
t->prev = prev;
prev->next = t;
}
int swf_DefineSprite_GetRealSize(TAG * t);
-int swf_WriteTag2(struct writer_t*writer, TAG * t)
+int swf_WriteTag2(writer_t*writer, TAG * t)
// returns tag length in bytes (incl. Header), -1 = Error
// writer = 0 -> no output
{ U16 raw[3];
len = (t->id==ST_DEFINESPRITE)?swf_DefineSprite_GetRealSize(t):t->len;
- short_tag = len<0x3f;
+ short_tag = len<0x3f&&
+ (t->id!=ST_DEFINEBITSLOSSLESS&&t->id!=ST_DEFINEBITSLOSSLESS2&&t->id!=ST_SOUNDSTREAMBLOCK&&
+ t->id!=ST_DEFINEBITSJPEG&&t->id!=ST_DEFINEBITSJPEG2&&t->id!=ST_DEFINEBITSJPEG3);
if (writer)
- { if (short_tag)
+ {
+#ifdef MEASURE
+ int oldpos = writer->pos;
+#endif
+
+ if (short_tag)
{ raw[0] = SWAP16(len|((t->id&0x3ff)<<6));
if (writer->write(writer,raw,2)!=2)
{
return -1;
}
- len = SWAP32(len);
- if (writer->write(writer,&len,4)!=4)
- {
- #ifdef DEBUG_RFXSWF
- fprintf(stderr,"WriteTag() failed: Long Header (2).\n");
- #endif
- return -1;
- }
+ writer_writeU32(writer, len);
}
if (t->data)
#ifdef DEBUG_RFXSWF
else if (t->len) fprintf(stderr,"WriteTag(): Tag Data Error, id=%i\n",t->id);
#endif
+
+#ifdef MEASURE
+ writer->flush(writer);
+ printf("TAG %s costs %d bytes\n", swf_TagGetName(t), writer->pos-oldpos);
+#endif
}
return t->len+(short_tag?2:6);
int swf_WriteTag(int handle, TAG * t)
{
- struct writer_t writer;
+ writer_t writer;
+ int len = 0;
if(handle<0)
return swf_WriteTag2(0, t);
writer_init_filewriter(&writer, handle);
- return swf_WriteTag2(&writer, t);
+ len = swf_WriteTag2(&writer, t);
+ writer.finish(&writer);
+ return len;
}
int swf_DefineSprite_GetRealSize(TAG * t)
}
do
{ t = swf_NextTag(t);
- if (t->id!=ST_DEFINESPRITE) len += swf_WriteTag(-1, t);
+ if (t && t->id!=ST_DEFINESPRITE) len += swf_WriteTag(-1, t);
else t = NULL;
} while (t&&(t->id!=ST_END));
return len;
}
+void swf_UnFoldSprite(TAG * t)
+{
+ U16 id,tmp;
+ U32 len;
+ TAG*next = t;
+ U16 spriteid,spriteframes;
+ int level;
+ if(t->id!=ST_DEFINESPRITE)
+ return;
+ if(t->len<=4) // not folded
+ return;
+
+ swf_SetTagPos(t,0);
+
+ spriteid = swf_GetU16(t); //id
+ spriteframes = swf_GetU16(t); //frames
+
+ level = 1;
+
+ while(1)
+ {
+ TAG*it = 0;
+ tmp = swf_GetU16(t);
+ len = tmp&0x3f;
+ id = tmp>>6;
+ if(id == ST_END)
+ level--;
+ if(id == ST_DEFINESPRITE && len<=4)
+ level++;
+
+ if (len==0x3f)
+ len = swf_GetU32(t);
+ it = swf_InsertTag(next, id);
+ next = it;
+ it->len = len;
+ it->id = id;
+ if (it->len)
+ { it->data = (U8*)rfx_alloc(it->len);
+ it->memsize = it->len;
+ swf_GetBlock(t, it->data, it->len);
+ }
+
+ if(!level)
+ break;
+ }
+
+ rfx_free(t->data); t->data = 0;
+ t->memsize = t->len = t->pos = 0;
+
+ swf_SetU16(t, spriteid);
+ swf_SetU16(t, spriteframes);
+}
+
void swf_FoldSprite(TAG * t)
{
TAG*sprtag=t,*tmp;
- U16 id,frames,tmpid;
+ U16 id,frames;
+ int level;
if(t->id!=ST_DEFINESPRITE)
return;
if(!t->len) {
+ #ifdef DEBUG_RFXSWF
fprintf(stderr, "Error: Sprite has no ID!");
+ #endif
return;
}
if(t->len>4) {
t->pos = 0;
id = swf_GetU16(t);
- //frames = swf_GetU16(t);
- free(t->data);
+ rfx_free(t->data);
t->len = t->pos = t->memsize = 0;
t->data = 0;
frames = 0;
+ t = swf_NextTag(sprtag);
+ level = 1;
+
do
{
if(t->id==ST_SHOWFRAME) frames++;
+ if(t->id == ST_DEFINESPRITE && t->len<=4)
+ level++;
+ if(t->id == ST_END)
+ level--;
t = swf_NextTag(t);
- } while(t&&t!=ST_END);
+ } while(t && level);
+ if(level)
+ fprintf(stderr, "rfxswf error: sprite doesn't end(1)\n");
- t = swf_NextTag(sprtag);
swf_SetU16(sprtag, id);
swf_SetU16(sprtag, frames);
+ t = swf_NextTag(sprtag);
+ level = 1;
+
do
{
- tmpid= t->id;
- if(t->len<0x3f) {
+ if(t->len<0x3f&&
+ (t->id!=ST_DEFINEBITSLOSSLESS&&t->id!=ST_DEFINEBITSLOSSLESS2&&t->id!=ST_SOUNDSTREAMBLOCK&&
+ t->id!=ST_DEFINEBITSJPEG&&t->id!=ST_DEFINEBITSJPEG2&&t->id!=ST_DEFINEBITSJPEG3)
+ ) {
swf_SetU16(sprtag,t->len|(t->id<<6));
} else {
swf_SetU16(sprtag,0x3f|(t->id<<6));
if(t->len)
swf_SetBlock(sprtag,t->data, t->len);
tmp = t;
+ if(t->id == ST_DEFINESPRITE && t->len<=4)
+ level++;
+ if(t->id == ST_END)
+ level--;
t = swf_NextTag(t);
- swf_DeleteTag(tmp);
+ swf_DeleteTag(0, tmp);
}
- while (t&&(tmpid!=ST_END));
+ while (t && level);
+ if(level)
+ fprintf(stderr, "rfxswf error: sprite doesn't end(2)\n");
// sprtag->next = t;
// t->prev = sprtag;
}
+int swf_IsFolded(TAG * t)
+{
+ return (t->id == ST_DEFINESPRITE && t->len>4);
+}
+
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);
}
}
+void swf_UnFoldAll(SWF*swf)
+{
+ TAG*tag = swf->firstTag;
+ while(tag) {
+ if(tag->id == ST_DEFINESPRITE)
+ swf_UnFoldSprite(tag);
+ tag = tag->next;
+ }
+}
+
+void swf_OptimizeTagOrder(SWF*swf)
+{
+ TAG*tag,*next;
+ TAG*level0;
+ int level;
+ int changes;
+ swf_UnFoldAll(swf);
+ /* at the moment, we don't actually do optimizing,
+ only fixing of non-spec-conformant things like
+ sprite tags */
+
+ do {
+ changes = 0;
+ level = 0;
+ level0 = 0;
+ tag = swf->firstTag;
+ while(tag) {
+ next = tag->next;
+ if(tag->id == ST_DEFINESPRITE) {
+ if(tag->len>4) {
+ /* ??? all sprites are supposed to be unfolded */
+ fprintf(stderr, "librfxswf error - internal error in OptimizeTagOrder/UnfoldAll\n");
+ }
+ level++;
+ if(level==1) {
+ level0 = tag;
+ tag = next;
+ continue;
+ }
+ }
+ if(level>=1) {
+ /* move non-sprite tags out of sprite */
+ if(!swf_isAllowedSpriteTag(tag) || level>=2) {
+ /* remove tag from current position */
+ tag->prev->next = tag->next;
+ if(tag->next)
+ tag->next->prev = tag->prev;
+
+ /* insert before tag level0 */
+ tag->next = level0;
+ tag->prev = level0->prev;
+ level0->prev = tag;
+ if(tag->prev)
+ tag->prev->next = tag;
+ else
+ swf->firstTag = tag;
+ changes = 1;
+ }
+ }
+ if(tag->id == ST_END) {
+ level--;
+ }
+
+ tag = next;
+ }
+ } while(changes);
+}
+
// Movie Functions
-int swf_ReadSWF2(struct reader_t*reader, SWF * swf) // Reads SWF to memory (malloc'ed), returns length or <0 if fails
+int swf_ReadSWF2(reader_t*reader, SWF * swf) // Reads SWF to memory (malloc'ed), returns length or <0 if fails
{
if (!swf) return -1;
memset(swf,0x00,sizeof(SWF));
int len;
TAG * t;
TAG t1;
- struct reader_t zreader;
+ reader_t zreader;
if ((len = reader->read(reader ,b,8))<8) return -1;
reader_init_zlibinflate(&zreader, reader);
reader = &zreader;
}
+ swf->compressed = 0; // derive from version number from now on
reader_GetRect(reader, &swf->movieSize);
reader->read(reader, &swf->frameRate, 2);
swf->frameCount = SWAP16(swf->frameCount);
/* read tags and connect to list */
+ t1.next = 0;
t = &t1;
- while (t) t = swf_ReadTag(reader,t);
+ while (t) {
+ t = swf_ReadTag(reader,t);
+ if(t && t->id == ST_FILEATTRIBUTES) {
+ swf->fileAttributes = swf_GetU32(t);
+ swf_ResetReadBits(t);
+ }
+ }
swf->firstTag = t1.next;
- t1.next->prev = NULL;
+ if(t1.next)
+ t1.next->prev = NULL;
}
return reader->pos;
}
+SWF* swf_OpenSWF(char*filename)
+{
+ int fi = open(filename, O_RDONLY|O_BINARY);
+ if(fi<0) {
+ fprintf(stderr, "Failed to open %s\n", filename);
+ return 0;
+ }
+ SWF* swf = rfx_alloc(sizeof(SWF));
+ swf_ReadSWF(fi, swf);
+ close(fi);
+ return swf;
+}
+
int swf_ReadSWF(int handle, SWF * swf)
{
- struct reader_t reader;
+ reader_t reader;
reader_init_filereader(&reader, handle);
return swf_ReadSWF2(&reader, swf);
}
-int swf_WriteSWF2(struct writer_t*writer, SWF * swf) // Writes SWF to file, returns length or <0 if fails
+void swf_ReadABCfile(char*filename, SWF*swf)
+{
+ memset(swf, 0, sizeof(SWF));
+ swf->fileVersion=9;
+ swf->fileAttributes=FILEATTRIBUTE_AS3; //as3
+ TAG*tag = swf->firstTag = swf_InsertTag(0, ST_RAWABC);
+ memfile_t*file = memfile_open(filename);
+ swf_SetBlock(tag, file->data, file->len);
+ memfile_close(file);
+}
+
+int no_extra_tags = 0;
+
+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|FILEATTRIBUTE_AS3; // 16 = has symbolclass tag | 8 = actionscript3 | 1 = usenetwork
+ if(has_version_8_action && !has_version_9_action)
+ flags &= ~FILEATTRIBUTE_AS3;
+ 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->fileAttributes) {
+ /* if we're writing a file out again where we might have possible
+ modified the fileattributes in the header, adjust the tag data */
+ TAG*tt = swf_CopyTag(0,has_fileattributes);
+ U32 flags = swf_GetU32(tt) | swf->fileAttributes;
+ swf_ResetTag(tt, tt->id);
+ swf_SetU32(tt, flags);
+ if(swf_WriteTag2(writer, has_fileattributes)<0) return -1;
+ swf_DeleteTag(0, tt);
+ } else {
+ if(swf_WriteTag2(writer, has_fileattributes)<0)
+ return -1;
+ }
+ }
+ if(0 && !has_scenedescription) {
+ TAG*scene = swf_InsertTag(0, ST_SCENEDESCRIPTION);
+ swf_SetU16(scene, 1);
+ swf_SetString(scene, "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;
+}
+
+int swf_WriteSWF2(writer_t*writer, SWF * swf) // Writes SWF to file, returns length or <0 if fails
{ U32 len;
TAG * t;
int frameCount=0;
- struct writer_t zwriter;
+ writer_t zwriter;
+ int fileSize = 0;
+ int inSprite = 0;
+ int ret;
+ writer_t*original_writer = writer;
+ int writer_lastpos = 0;
if (!swf) return -1;
+ if (!writer) return -1; // the caller should provide a nullwriter, not 0, for querying SWF size
- // Insert REFLEX Tag
-
-#ifdef INSERT_RFX_TAG
-
- if (swf->firstTag && swf_NextTag(swf->firstTag))
- if (swf_GetTagID(swf_NextTag(swf->firstTag))!=ST_REFLEX)
- swf_SetBlock(swf_InsertTag(swf->firstTag,ST_REFLEX),"rfx",3);
-
-#endif // INSERT_RFX_TAG
+ if(original_writer) writer_lastpos = original_writer->pos;
// Count Frames + File Size
t = swf->firstTag;
frameCount = 0;
- while(t)
- { len += swf_WriteTag(-1, t);
- if (t->id==ST_SHOWFRAME) frameCount++;
- t = swf_NextTag(t);
+ if(swf->firstTag && !no_extra_tags) {
+ len += WriteExtraTags(swf, 0);
+ }
+ while(t) {
+ len += swf_WriteTag(-1,t);
+ if(t->id == ST_DEFINESPRITE && !swf_IsFolded(t)) inSprite++;
+ else if(t->id == ST_END && inSprite) inSprite--;
+ else if(t->id == ST_END && !inSprite) {
+ if(t->prev && t->prev->id!=ST_SHOWFRAME)
+ frameCount++;
+ }
+ else if(t->id == ST_SHOWFRAME && !inSprite) frameCount++;
+ t = swf_NextTag(t);
}
{ TAG t1;
swf_SetU16(&t2, swf->frameCount);
l = swf_GetTagLen(&t2)+8;
}
+ if(swf->compressed == 8) {
+ l -= 8;
+ }
+ fileSize = l+len;
if(len) {// don't touch headers without tags
- swf->fileSize = l+len;
+ swf->fileSize = fileSize;
swf->frameCount = frameCount;
}
-
- if(swf->compressed) {
- char*id = "CWS";
- writer->write(writer, id, 3);
- }
- else {
- char*id = "FWS";
- writer->write(writer, id, 3);
- }
- writer->write(writer, &swf->fileVersion, 1);
- PUT32(b4, swf->fileSize);
- writer->write(writer, b4, 4);
+ if(swf->compressed != 8) {
+ /* compressed flag set to 8 means "skip first 8
+ header bytes". This is necessary if the caller wants to
+ create compressed SWFs himself .
+ It also means that we don't initialize our own zlib
+ writer, but assume the caller provided one.
+ */
+ if(swf->compressed==1 || (swf->compressed==0 && swf->fileVersion>=6)) {
+ char*id = "CWS";
+ writer->write(writer, id, 3);
+ } else {
+ char*id = "FWS";
+ writer->write(writer, id, 3);
+ }
- if(swf->compressed) {
- writer_init_zlibdeflate(&zwriter, writer);
- writer = &zwriter;
+ writer->write(writer, &swf->fileVersion, 1);
+ PUT32(b4, swf->fileSize);
+ writer->write(writer, b4, 4);
+
+ if(swf->compressed==1 || (swf->compressed==0 && swf->fileVersion>=6)) {
+ writer_init_zlibdeflate(&zwriter, writer);
+ writer = &zwriter;
+ }
}
swf_SetRect(&t1,&swf->movieSize);
swf_SetU16(&t1,swf->frameRate);
swf_SetU16(&t1,swf->frameCount);
- if (writer)
- {
- int ret = writer->write(writer,b,swf_GetTagLen(&t1));
- if (ret!=swf_GetTagLen(&t1))
- {
- #ifdef DEBUG_RFXSWF
- printf("ret:%d\n",ret);
- perror("write:");
- fprintf(stderr,"WriteSWF() failed: Header.\n");
- #endif
- return -1;
- }
+ ret = writer->write(writer,b,swf_GetTagLen(&t1));
+ if (ret!=swf_GetTagLen(&t1))
+ {
+ #ifdef DEBUG_RFXSWF
+ fprintf(stderr, "ret:%d\n",ret);
+ perror("write:");
+ fprintf(stderr,"WriteSWF() failed: Header.\n");
+ #endif
+ return -1;
+ }
- t = swf->firstTag;
- while (t)
- { if (swf_WriteTag2(writer, t)<0) return -1;
- t = swf_NextTag(t);
+ if(swf->firstTag && !no_extra_tags) {
+ WriteExtraTags(swf, writer);
+ }
+ t = swf->firstTag;
+
+ while (t) {
+ if(no_extra_tags || t->id != ST_FILEATTRIBUTES) {
+ if(swf_WriteTag2(writer, t)<0)
+ return -1;
+ }
+ t = t->next;
+ }
+ if(swf->compressed==1 || (swf->compressed==0 && swf->fileVersion>=6) || swf->compressed==8) {
+ if(swf->compressed != 8) {
+ zwriter.finish(&zwriter);
+ return original_writer->pos - writer_lastpos;
}
- writer->finish(writer); //e.g. flush zlib buffers
+ return (int)fileSize;
+ } else {
+ return (int)fileSize;
}
}
- return (int)swf->fileSize;
}
-int swf_WriteSWF(int handle, SWF * swf) // Writes SWF to file, returns length or <0 if fails
+int swf_SaveSWF(SWF * swf, char*filename)
{
- struct writer_t writer;
- swf->compressed = 0;
- if(handle<0)
- return swf_WriteSWF2(&writer, swf);
- writer_init_filewriter(&writer, handle);
- return swf_WriteSWF2(&writer, swf);
+ int fi = open(filename, O_BINARY|O_RDWR|O_TRUNC|O_CREAT, 0777);
+ if(fi<0) {
+ perror(filename);
+ return 0;
+ }
+ if(swf_WriteSWF(fi, swf)<0) {
+ fprintf(stderr, "Unable to write output file: %s\n", filename);
+ return 0;
+ }
+ close(fi);
+ return 1;
}
-int swf_WriteSWC(int handle, SWF * swf) // Writes SWF to file, returns length or <0 if fails
+int swf_WriteSWF(int handle, SWF * swf) // Writes SWF to file, returns length or <0 if fails
{
- struct writer_t writer;
- swf->compressed = 1;
- if(handle<0)
- return swf_WriteSWF2(&writer, swf);
+ writer_t writer;
+ int len = 0;
+
+ if(handle<0) {
+ writer_init_nullwriter(&writer);
+ len = swf_WriteSWF2(&writer, swf);
+ return len;
+ }
writer_init_filewriter(&writer, handle);
- return swf_WriteSWF2(&writer, swf);
+ len = swf_WriteSWF2(&writer, swf);
+ writer.finish(&writer);
+ return len;
}
-int swf_WriteHeader2(struct writer_t*writer,SWF * swf)
+int swf_WriteHeader2(writer_t*writer,SWF * swf)
{
SWF myswf;
memcpy(&myswf,swf,sizeof(SWF));
sprintf(s,"Content-type: application/x-shockwave-flash\n"
"Accept-Ranges: bytes\n"
- "Content-Length: %lu\n"
+ "Content-Length: %d\n"
"Expires: Thu, 13 Apr 2000 23:59:59 GMT\n"
"\n",len);
return swf_WriteSWF(fileno(stdout),swf);
}
+SWF* swf_CopySWF(SWF*swf)
+{
+ SWF*nswf = (SWF*)rfx_alloc(sizeof(SWF));
+ TAG*tag, *ntag;
+ memcpy(nswf, swf, sizeof(SWF));
+ nswf->firstTag = 0;
+ tag = swf->firstTag;
+ ntag = 0;
+ while(tag) {
+ ntag = swf_CopyTag(ntag, tag);
+ if(!nswf->firstTag)
+ nswf->firstTag = ntag;
+ tag = tag->next;
+ }
+ return nswf;
+}
+
void swf_FreeTags(SWF * swf) // Frees all malloc'ed memory for tags
{ TAG * t = swf->firstTag;
while (t)
{ TAG * tnew = t->next;
- if (t->data) free(t->data);
- free(t);
+ if (t->data) rfx_free(t->data);
+ rfx_free(t);
t = tnew;
}
+ swf->firstTag = 0;
}
// include advanced functions
-#include "modules/swfdump.c"
-#include "modules/swfshape.c"
-#include "modules/swftext.c"
-#include "modules/swfobject.c"
-#include "modules/swfbutton.c"
-#include "modules/swftools.c"
-#include "modules/swfcgi.c"
-#include "modules/swfbits.c"
-#include "modules/swfaction.c"
-#include "modules/swfsound.c"
-
+//#include "modules/swfdump.c"
+//#include "modules/swfshape.c"
+//#include "modules/swftext.c"
+//#include "modules/swffont.c"
+//#include "modules/swfobject.c"
+//#include "modules/swfbutton.c"
+//#include "modules/swftools.c"
+//#include "modules/swfcgi.c"
+//#include "modules/swfbits.c"
+//#include "modules/swfaction.c"
+//#include "modules/swfabc.c"
+//#include "modules/swfsound.c"
+//#include "modules/swfdraw.c"
+//#include "modules/swfrender.c"
+//#include "modules/swffilter.c"
git.asbjorn.biz / swftools.git / blobdiff