-/* rfxswf.c\r
-\r
- Library for creating and reading SWF files or parts of it.\r
- There's a module directory which provides some extended functionality.\r
- Most modules are included at the bottom of this file.\r
-\r
- Part of the swftools package.\r
-\r
- Copyright (c) 2000, 2001 Rainer Böhme <rfxswf@reflex-studio.de>\r
- \r
- This file is distributed under the GPL, see file COPYING for details \r
-\r
-*/\r
-\r
-#include "rfxswf.h"\r
-\r
-#ifdef HAVE_LIBJPEG\r
-#ifdef HAVE_JPEGLIB_H\r
-#include <jpeglib.h>\r
-#define _JPEGLIB_INCLUDED_\r
-#endif //HAVE_JPEGLIB_H\r
-#endif //HAVE_LIBJPEG\r
-\r
-// Win32 support may be broken since it was only tested in an older version for Watcom C\r
-#ifdef __NT__\r
-# include <io.h>\r
-# include <malloc.h>\r
-# include <string.h>\r
-# ifdef DEBUG_RFXSWF\r
-# include <stdio.h>\r
-# endif\r
-#else\r
-#endif\r
-\r
-// internal constants\r
-\r
-#define MALLOC_SIZE 128\r
-#define INSERT_RFX_TAG\r
-\r
-#define MEMSIZE(l) (((l/MALLOC_SIZE)+1)*MALLOC_SIZE)\r
-\r
-// inline wrapper functions\r
-\r
-LPTAG NextTag(LPTAG t) { return t->next; }\r
-LPTAG PrevTag(LPTAG t) { return t->prev; }\r
-int GetFrameNo(LPTAG t) { return t->frame; }\r
-U16 GetTagID(LPTAG t) { return t->id; }\r
-U32 GetDataSize(LPTAG t) { return t->len; }\r
-U8* GetDataSizePtr(LPTAG t) { return &(t->data[t->len]); }\r
-U32 GetTagPos(LPTAG t) { return t->pos; }\r
-\r
-// Basic Data Access Functions\r
-\r
-#define ResetBitmask(tag) if (tag->bitmask) { tag->pos++; tag->bitmask = 0; }\r
-#define ResetBitcount(tag) if (tag->bitcount) { tag->bitcount = 0; }\r
-\r
-// for future purpose: avoid high level lib functions to change tagpos/bitcount\r
-\r
-#define SaveTagPos(tag)\r
-#define RestoreTagPos(tag)\r
-\r
-void SetTagPos(LPTAG t,U32 pos)\r
-{ ResetBitmask(t);\r
- if (pos<=t->len) t->pos = pos;\r
- #ifdef DEBUG_RFXSWF\r
- else fprintf(stderr,"SetTagPos() out of bounds: TagID = %i\n",t->id);\r
- #endif\r
-}\r
-\r
-U8 GetU8(LPTAG t)\r
-{ ResetBitmask(t);\r
- #ifdef DEBUG_RFXSWF\r
- if (t->pos>=t->len) \r
- { fprintf(stderr,"GetU8() out of bounds: TagID = %i\n",t->id);\r
- return 0;\r
- }\r
- #endif\r
- return t->data[t->pos++];\r
-}\r
-\r
-U16 GetU16(LPTAG t)\r
-{ U16 res;\r
- ResetBitmask(t);\r
- #ifdef DEBUG_RFXSWF\r
- if (t->pos>(t->len-2)) \r
- { fprintf(stderr,"GetU16() out of bounds: TagID = %i\n",t->id);\r
- return 0;\r
- }\r
- #endif\r
- res = t->data[t->pos] | (t->data[t->pos+1]<<8);\r
- t->pos+=2;\r
- return res;\r
-}\r
-\r
-U32 GetU32(LPTAG t)\r
-{ U32 res;\r
- ResetBitmask(t);\r
- #ifdef DEBUG_RFXSWF\r
- if (t->pos>(t->len-4)) \r
- { fprintf(stderr,"GetU32() out of bounds: TagID = %i\n",t->id);\r
- return 0;\r
- }\r
- #endif\r
- res = t->data[t->pos] | (t->data[t->pos+1]<<8) | \r
- (t->data[t->pos+2]<<16) | (t->data[t->pos+3]<<24);\r
- t->pos+=4;\r
- return res;\r
-}\r
-\r
-int GetBlock(LPTAG t,U8 * b,int l)\r
-// returns number of bytes written (<=l)\r
-// b = NULL -> skip data\r
-{ ResetBitmask(t);\r
- if ((t->len-t->pos)<l) l=t->len-t->pos;\r
- if (b && l) memcpy(b,&t->data[t->pos],l);\r
- t->pos+=l;\r
- return l;\r
-}\r
-\r
-int SetBlock(LPTAG t,U8 * b,int l)\r
-// Appends Block to the end of Tagdata, returns size\r
-{ U32 newlen = t->len + l;\r
- ResetBitcount(t);\r
- if (newlen>t->memsize)\r
- { U32 newmem = MEMSIZE(newlen); \r
- U8 * newdata = (U8*)((t->data)?realloc(t->data,newmem):malloc(newmem));\r
- if (!newdata)\r
- {\r
- #ifdef DEBUG_RFXSWF\r
- fprintf(stderr,"Fatal Error: malloc()/realloc() failed.\n");\r
- #endif\r
- return 0;\r
- }\r
- t->memsize = newmem;\r
- t->data = newdata;\r
- }\r
- if (b) memcpy(&t->data[t->len],b,l);\r
- else memset(&t->data[t->len],0x00,l);\r
- t->len+=l;\r
- return l;\r
-}\r
-\r
-int SetU8(LPTAG t,U8 v)\r
-{ ResetBitcount(t);\r
- if ((t->len+1)>t->memsize) return (SetBlock(t,&v,1)==1)?0:-1;\r
- t->data[t->len++] = v;\r
- return 0;\r
-}\r
-\r
-int SetU16(LPTAG t,U16 v)\r
-{ U8 a[2];\r
- a[0] = v&0xff;\r
- a[1] = v>>8;\r
- \r
- ResetBitcount(t);\r
- if ((t->len+2)>t->memsize) return (SetBlock(t,a,2)==2)?0:-1;\r
- t->data[t->len++] = a[0];\r
- t->data[t->len++] = a[1];\r
- return 0;\r
-}\r
-\r
-int SetU32(LPTAG t,U32 v)\r
-{ U8 a[4];\r
- a[0] = v&0xff; // to ensure correct handling of non-intel byteorder\r
- a[1] = (v>>8)&0xff;\r
- a[2] = (v>>16)&0xff;\r
- a[3] = (v>>24)&0xff;\r
- \r
- ResetBitcount(t);\r
- if ((t->len+4)>t->memsize) return (SetBlock(t,a,4)==4)?0:-1;\r
- t->data[t->len++] = a[0];\r
- t->data[t->len++] = a[1];\r
- t->data[t->len++] = a[2];\r
- t->data[t->len++] = a[3];\r
- return 0;\r
-}\r
-\r
-U32 GetBits(LPTAG t,int nbits)\r
-{ U32 res = 0;\r
- if (!nbits) return 0;\r
- if (!t->bitmask) t->bitmask = 0x80;\r
- while (nbits)\r
- { res<<=1;\r
- if (t->data[t->pos]&t->bitmask) res|=1;\r
- t->bitmask>>=1;\r
- nbits--;\r
- if (!t->bitmask)\r
- { if (nbits) t->bitmask = 0x80;\r
- #ifdef DEBUG_RFXSWF\r
- if (t->pos>=t->len) \r
- { fprintf(stderr,"GetBits() out of bounds: TagID = %i\n",t->id);\r
- return res;\r
- }\r
- #endif\r
- t->pos++;\r
- }\r
- }\r
- return res;\r
-}\r
-\r
-S32 GetSBits(LPTAG t,int nbits)\r
-{ U32 res = GetBits(t,nbits);\r
- if (res&(1<<(nbits-1))) res|=(0xffffffff<<nbits); \r
- return (S32)res;\r
-}\r
-\r
-int SetBits(LPTAG t,U32 v,int nbits)\r
-{ U32 bm = 1<<(nbits-1);\r
-\r
- while (nbits)\r
- { if (!t->bitcount)\r
- { if (FAILED(SetU8(t,0))) return -1;\r
- t->bitcount = 0x80;\r
- }\r
- if (v&bm) t->data[t->len-1] |= t->bitcount;\r
- bm>>=1;\r
- t->bitcount>>=1;\r
- nbits--;\r
- }\r
- return 0;\r
-}\r
-\r
-// Advanced Data Access Functions\r
-\r
-int SetRGB(LPTAG t,LPRGBA col)\r
-{ if (!t) return -1;\r
- if (col)\r
- { SetU8(t,col->r);\r
- SetU8(t,col->g);\r
- SetU8(t,col->b);\r
- } else SetBlock(t,NULL,3);\r
- return 0;\r
-}\r
-\r
-int SetRGBA(LPTAG t,LPRGBA col)\r
-{ if (!t) return -1;\r
- if (col)\r
- { SetU8(t,col->r);\r
- SetU8(t,col->g);\r
- SetU8(t,col->b);\r
- SetU8(t,col->a);\r
- } else SetBlock(t,NULL,4);\r
- return 0;\r
-}\r
-\r
-int CountBits(U32 v,int nbits)\r
-{ int n = 33;\r
- U32 m = 0x80000000;\r
- if (!v) n = 0; else\r
- if (v&m)\r
- { while (v&m)\r
- { n--;\r
- m>>=1;\r
- if (!m) break;\r
- } \r
- }\r
- else\r
- { while (!(v&m))\r
- { n--;\r
- m>>=1;\r
- if (!m) break;\r
- } \r
- }\r
- return (n>nbits)?n:nbits;\r
-}\r
-\r
-int GetRect(LPTAG t,LPSRECT r)\r
-{ int nbits;\r
- SRECT dummy;\r
- if (!r) r = &dummy;\r
- nbits = (int) GetBits(t,5);\r
- r->xmin = GetSBits(t,nbits);\r
- r->xmax = GetSBits(t,nbits);\r
- r->ymin = GetSBits(t,nbits);\r
- r->ymax = GetSBits(t,nbits);\r
- return 0;\r
-}\r
-\r
-int SetRect(LPTAG t,LPSRECT r)\r
-{ int nbits;\r
- \r
- nbits = CountBits(r->xmin,0);\r
- nbits = CountBits(r->xmax,nbits);\r
- nbits = CountBits(r->ymin,nbits);\r
- nbits = CountBits(r->ymax,nbits);\r
-\r
- SetBits(t,nbits,5);\r
- SetBits(t,r->xmin,nbits);\r
- SetBits(t,r->xmax,nbits);\r
- SetBits(t,r->ymin,nbits);\r
- SetBits(t,r->ymax,nbits);\r
-\r
- return 0;\r
-}\r
-\r
-int GetMatrix(LPTAG t,LPMATRIX m)\r
-{ MATRIX dummy;\r
- int nbits;\r
- \r
- if (!m) m = &dummy;\r
- \r
- if (!t)\r
- { m->sx = m->sy = 0x10000;\r
- m->r0 = m->r1 = 0;\r
- m->tx = m->ty = 0;\r
- return -1;\r
- }\r
-\r
- ResetBitmask(t);\r
- \r
- if (GetBits(t,1))\r
- { nbits = GetBits(t,5);\r
- m->sx = GetSBits(t,nbits);\r
- m->sy = GetSBits(t,nbits);\r
- }\r
- else m->sx = m->sy = 0x10000;\r
- \r
- if (GetBits(t,1))\r
- { nbits = GetBits(t,5);\r
- m->r0 = GetSBits(t,nbits);\r
- m->r1 = GetSBits(t,nbits);\r
- }\r
- else m->r0 = m->r1 = 0x0;\r
-\r
- nbits = GetBits(t,5);\r
- m->tx = GetSBits(t,nbits);\r
- m->ty = GetSBits(t,nbits);\r
- \r
- return 0;\r
-}\r
-\r
-int SetMatrix(LPTAG t,LPMATRIX m)\r
-{ int nbits;\r
- MATRIX ma;\r
-\r
- if (!m)\r
- { m = &ma;\r
- ma.sx = ma.sy = 0x10000;\r
- ma.r0 = ma.r1 = 0;\r
- ma.tx = ma.ty = 0;\r
- }\r
-\r
- ResetBitcount(t);\r
-\r
- if ((m->sx==0x10000)&&(m->sy==0x10000)) SetBits(t,0,1);\r
- else\r
- { SetBits(t,1,1);\r
- nbits = CountBits(m->sx,0);\r
- nbits = CountBits(m->sy,nbits);\r
- SetBits(t,nbits,5);\r
- SetBits(t,m->sx,nbits);\r
- SetBits(t,m->sy,nbits);\r
- }\r
-\r
- if ((!m->r0)&&(!m->r1)) SetBits(t,0,1);\r
- else\r
- { SetBits(t,1,1);\r
- nbits = CountBits(m->r0,0);\r
- nbits = CountBits(m->r1,nbits);\r
- SetBits(t,nbits,5);\r
- SetBits(t,m->r0,nbits);\r
- SetBits(t,m->r1,nbits);\r
- }\r
-\r
- nbits = CountBits(m->tx,0);\r
- nbits = CountBits(m->ty,nbits);\r
- SetBits(t,nbits,5);\r
- SetBits(t,m->tx,nbits);\r
- SetBits(t,m->ty,nbits);\r
-\r
- return 0;\r
-}\r
-\r
-int GetCXForm(LPTAG t,LPCXFORM cx,U8 alpha) //FIXME: alpha should be type bool\r
-{ CXFORM cxf;\r
- int hasadd;\r
- int hasmul;\r
- int nbits;\r
- \r
- if (!cx) cx = &cxf;\r
- \r
- cx->a0 = cx->r0 = cx->g0 = cx->b0 = 256;\r
- cx->a1 = cx->r1 = cx->g1 = cx->b1 = 0;\r
-\r
- if (!t) return 0;\r
- \r
- ResetBitmask(t);\r
- hasadd = GetBits(t,1);\r
- hasmul = GetBits(t,1);\r
- nbits = GetBits(t,4);\r
-\r
- if (hasmul)\r
- { cx->r0 = (S16)GetSBits(t,nbits);\r
- cx->g0 = (S16)GetSBits(t,nbits);\r
- cx->b0 = (S16)GetSBits(t,nbits);\r
- if (alpha)\r
- cx->a0 = (S16)GetSBits(t,nbits);\r
- }\r
-\r
- if (hasadd)\r
- { cx->r1 = (S16)GetSBits(t,nbits);\r
- cx->g1 = (S16)GetSBits(t,nbits);\r
- cx->b1 = (S16)GetSBits(t,nbits);\r
- if (alpha)\r
- cx->a1 = (S16)GetSBits(t,nbits);\r
- }\r
- \r
- return 0;\r
-}\r
-\r
-int SetCXForm(LPTAG t,LPCXFORM cx,U8 alpha)\r
-{ CXFORM cxf;\r
- int hasadd;\r
- int hasmul;\r
- int nbits;\r
- \r
- if (!cx)\r
- { cx = &cxf;\r
- cx->a0 = cx->r0 = cx->g0 = cx->b0 = 256;\r
- cx->a1 = cx->r1 = cx->g1 = cx->b1 = 0;\r
- }\r
-\r
- if (!alpha)\r
- { cx->a0 = 256;\r
- cx->a1 = 0;\r
- }\r
-\r
- nbits = 0;\r
-\r
- hasmul = (cx->a0!=256)||(cx->r0!=256)||(cx->g0!=256)||(cx->b0!=256);\r
- hasadd = cx->a1|cx->r1|cx->g1|cx->b1;\r
-\r
- if (hasmul)\r
- { if (alpha) nbits = CountBits((S32)cx->a0,nbits);\r
- nbits = CountBits((S32)cx->r0,nbits);\r
- nbits = CountBits((S32)cx->g0,nbits);\r
- nbits = CountBits((S32)cx->b0,nbits);\r
- }\r
-\r
- if (hasadd)\r
- { if (alpha) nbits = CountBits((S32)cx->a1,nbits);\r
- nbits = CountBits((S32)cx->r1,nbits);\r
- nbits = CountBits((S32)cx->g1,nbits);\r
- nbits = CountBits((S32)cx->b1,nbits);\r
- }\r
- \r
- ResetBitcount(t);\r
- SetBits(t,hasadd?1:0,1);\r
- SetBits(t,hasmul?1:0,1);\r
- SetBits(t,nbits,4);\r
-\r
- if (hasmul)\r
- { SetBits(t,cx->r0,nbits);\r
- SetBits(t,cx->g0,nbits);\r
- SetBits(t,cx->b0,nbits);\r
- if (alpha) SetBits(t,cx->a0,nbits);\r
- }\r
-\r
- if (hasadd)\r
- { SetBits(t,cx->r1,nbits);\r
- SetBits(t,cx->g1,nbits);\r
- SetBits(t,cx->b1,nbits);\r
- if (alpha) SetBits(t,cx->a1,nbits);\r
- }\r
- \r
- return 0;\r
-}\r
-\r
-int GetPoint(LPTAG t,LPSPOINT p) { return 0; }\r
-int SetPoint(LPTAG t,LPSPOINT p) { return 0; }\r
-\r
-// Tag List Manipulating Functions\r
-\r
-int RFXSWF_UpdateFrame(LPTAG t,S8 delta)\r
-// returns number of frames\r
-{ int res = -1;\r
- while (t)\r
- { t->frame+=delta;\r
- res = t->frame;\r
- t = t->next;\r
- }\r
- return res;\r
-}\r
-\r
-#define UpdateFrame(a,b) RFXSWF_UpdateFrame(a,b)\r
-\r
-LPTAG InsertTag(LPTAG after,U16 id) // updates frames, if nescessary\r
-{ LPTAG t;\r
-\r
- t = (LPTAG)malloc(sizeof(TAG));\r
- if (t)\r
- { memset(t,0x00,sizeof(TAG));\r
- t->id = id;\r
- t->bitcount = 0x80;\r
- \r
- if (after)\r
- { t->frame = after->frame;\r
- t->prev = after;\r
- t->next = after->next;\r
- after->next = t;\r
- if (t->next) t->next->prev = t;\r
- \r
- if (id==ST_SHOWFRAME) UpdateFrame(t->next,+1);\r
- }\r
- }\r
- return t;\r
-}\r
-\r
-int DeleteTag(LPTAG t)\r
-{ if (!t) return -1;\r
-\r
- if (t->id==ST_SHOWFRAME) UpdateFrame(t->next,-1);\r
- \r
- if (t->prev) t->prev->next = t->next;\r
- if (t->next) t->next->prev = t->prev;\r
-\r
- if (t->data) free(t->data);\r
- free(t);\r
- return 0;\r
-}\r
-\r
-LPTAG RFXSWF_ReadTag(int handle,LPTAG prev)\r
-{ LPTAG t;\r
- U16 raw;\r
- U32 len;\r
- int id;\r
-\r
- if (read(handle,&raw,2)!=2) return NULL;\r
-\r
- len = raw&0x3f;\r
- id = raw>>6;\r
-\r
- if (len==0x3f)\r
- { if (read(handle,&len,4)!=4) return NULL;\r
- }\r
-\r
- if (id==ST_DEFINESPRITE) len = 2*sizeof(U16);\r
- // Sprite handling fix: Flaten sprite tree\r
-\r
- t = (LPTAG)malloc(sizeof(TAG));\r
- \r
- if (!t)\r
- {\r
- #ifdef DEBUG_RFXSWF\r
- fprintf(stderr,"Fatal Error: malloc()/realloc() failed.\n");\r
- #endif\r
- return NULL;\r
- }\r
-\r
- memset(t,0x00,sizeof(TAG));\r
- \r
- t->len = len;\r
- t->id = id;\r
-\r
- if (t->len)\r
- { t->data = (U8*)malloc(t->len);\r
- if (!t->data)\r
- {\r
- #ifdef DEBUG_RFXSWF\r
- fprintf(stderr,"Fatal Error: malloc()/realloc() failed.\n");\r
- #endif\r
- return NULL;\r
- }\r
- t->memsize = t->len;\r
- if (read(handle,t->data,t->len)!=t->len) return NULL;\r
- }\r
-\r
- if (prev)\r
- { t->frame = prev->frame+((prev->id==ST_SHOWFRAME)?1:0);\r
- t->prev = prev;\r
- prev->next = t;\r
- }\r
-\r
- return t;\r
-}\r
-\r
-int DefineSprite_GetRealSize(LPTAG t);\r
-\r
-int RFXSWF_WriteTag(int handle,LPTAG t)\r
-// returns tag length in bytes (incl. Header), -1 = Error\r
-// handle = -1 -> no output\r
-{ U16 raw[3];\r
- U32 len;\r
- int short_tag;\r
-\r
- if (!t) return -1;\r
-\r
- len = (t->id==ST_DEFINESPRITE)?DefineSprite_GetRealSize(t):t->len;\r
-\r
- short_tag = len<0x3f;\r
-\r
- if (handle>=0)\r
- { if (short_tag)\r
- { raw[0] = len|((t->id&0x3ff)<<6);\r
- if (write(handle,raw,2)!=2)\r
- {\r
- #ifdef DEBUG_RFXSWF\r
- fprintf(stderr,"WriteTag() failed: Short Header.\n");\r
- #endif\r
- return -1;\r
- }\r
- }\r
- else\r
- { raw[0] = (t->id<<6)|0x3f;\r
- raw[1] = (U16)(len&0xffff);\r
- raw[2] = (U16)(len>>16);\r
- if (write(handle,raw,6)!=6)\r
- {\r
- #ifdef DEBUG_RFXSWF\r
- fprintf(stderr,"WriteTag() failed: Long Header.\n");\r
- #endif\r
- return -1;\r
- }\r
- }\r
- \r
- if (t->data)\r
- { if (write(handle,t->data,t->len)!=t->len)\r
- {\r
- #ifdef DEBUG_RFXSWF\r
- fprintf(stderr,"WriteTag() failed: Data.\n");\r
- #endif\r
- return -1;\r
- }\r
- }\r
- #ifdef DEBUG_RFXSWF\r
- else if (t->len) fprintf(stderr,"WriteTag(): Tag Data Error, id=%i\n",t->id);\r
- #endif\r
- }\r
-\r
- return t->len+(short_tag?2:6);\r
-}\r
-\r
-int DefineSprite_GetRealSize(LPTAG t)\r
-// Sprite Handling: Helper function to pack DefineSprite-Tag\r
-{ U32 len = t->len;\r
- do\r
- { t = NextTag(t);\r
- if (t->id!=ST_DEFINESPRITE) len += RFXSWF_WriteTag(-1,t);\r
- else t = NULL;\r
- } while (t&&(t->id!=ST_END));\r
- return len;\r
-}\r
-\r
-#define ReadTag(a,b) RFXSWF_ReadTag(a,b)\r
-#define WriteTag(a,b) RFXSWF_WriteTag(a,b)\r
-\r
-// Movie Functions\r
-\r
-int ReadSWF(int handle,LPSWF swf) // Reads SWF to memory (malloc'ed), returns length or <0 if fails\r
-{ \r
- if (!swf) return -1;\r
- memset(swf,0x00,sizeof(SWF));\r
-\r
- { char b[32]; // Header lesen\r
- TAG t1;\r
- LPTAG t;\r
- \r
- memset(&t1,0x00,sizeof(TAG));\r
- \r
- if ((t1.len=read(handle,b,32))<21) return -1;\r
- t1.data = (U8*)b;\r
-\r
- if (GetU8(&t1)!=(U8)'F') return -1;\r
- if (GetU8(&t1)!=(U8)'W') return -1;\r
- if (GetU8(&t1)!=(U8)'S') return -1;\r
-\r
- swf->FileVersion = GetU8(&t1);\r
- swf->FileSize = GetU32(&t1);\r
- GetRect(&t1,&swf->MovieSize);\r
- swf->FrameRate = GetU16(&t1);\r
- swf->FrameCount = GetU16(&t1);\r
-\r
- GetU8(&t1);\r
- lseek(handle,GetTagPos(&t1)-1,SEEK_SET);\r
- \r
- // Tags lesen und verketten\r
- t = &t1;\r
- while (t) t = ReadTag(handle,t);\r
- swf->FirstTag = t1.next;\r
- t1.next->prev = NULL;\r
- }\r
- \r
- return 0;\r
-}\r
-int WriteSWF(int handle,LPSWF swf) // Writes SWF to file, returns length or <0 if fails\r
-{ U32 len;\r
- LPTAG t;\r
- \r
- if (!swf) return -1;\r
-\r
- // Insert REFLEX Tag\r
-\r
-#ifdef INSERT_RFX_TAG\r
-\r
- if (NextTag(swf->FirstTag))\r
- if (GetTagID(NextTag(swf->FirstTag))!=ST_REFLEX)\r
- SetBlock(InsertTag(swf->FirstTag,ST_REFLEX),"rfx",3);\r
-\r
-#endif // INSERT_RFX_TAG\r
-\r
- // Count Frames + File Size\r
-\r
- len = 0;\r
- t = swf->FirstTag;\r
- swf->FrameCount = 0;\r
-\r
- while(t)\r
- { len += WriteTag(-1,t);\r
- if (t->id==ST_SHOWFRAME) swf->FrameCount++;\r
- t = NextTag(t);\r
- }\r
- \r
- { TAG t1;\r
- char b[64];\r
- U32 l;\r
-\r
- memset(&t1,0x00,sizeof(TAG));\r
- t1.data = (U8*)b;\r
- t1.memsize = 64;\r
- \r
- SetU8(&t1,'F'); \r
- SetU8(&t1,'W'); \r
- SetU8(&t1,'S');\r
- SetU8(&t1,swf->FileVersion);\r
- \r
- SetU32(&t1,0); // Keep space for filesize\r
- SetRect(&t1,&swf->MovieSize);\r
- SetU16(&t1,swf->FrameRate);\r
- SetU16(&t1,swf->FrameCount);\r
-\r
- l = GetDataSize(&t1);\r
- swf->FileSize = l+len;\r
- t1.len = 4; // bad & ugly trick !\r
- SetU32(&t1,swf->FileSize);\r
-\r
- if (handle>=0)\r
- { \r
- int ret = write(handle,b,l);\r
- if (ret!=l)\r
- {\r
- #ifdef DEBUG_RFXSWF\r
- printf("ret:%d (fd:%d)\n",ret, handle);\r
- perror("write:");\r
- fprintf(stderr,"WriteSWF() failed: Header.\n");\r
- #endif\r
- return -1;\r
- }\r
-\r
- t = swf->FirstTag;\r
- while (t)\r
- { if (WriteTag(handle,t)<0) return -1;\r
- t = NextTag(t);\r
- }\r
- }\r
- }\r
- return (int)swf->FileSize;\r
-}\r
-\r
-int WriteCGI(LPSWF swf)\r
-{ int len;\r
- char s[1024];\r
- \r
- len = WriteSWF(-1,swf);\r
-\r
- if (len<0) return -1;\r
-\r
- sprintf(s,"Content-type: application/x-shockwave-flash\n"\r
- "Accept-Ranges: bytes\n"\r
- "Content-Length: %lu\n"\r
- "Expires: Thu, 13 Apr 2000 23:59:59 GMT\n"\r
- "\n",len);\r
- \r
- write(fileno(stdout),s,strlen(s));\r
- return WriteSWF(fileno(stdout),swf);\r
-}\r
-\r
-void FreeTags(LPSWF swf) // Frees all malloc'ed memory for tags\r
-{ LPTAG t = swf->FirstTag;\r
-\r
- while (t)\r
- { LPTAG tnew = t->next;\r
- if (t->data) free(t->data);\r
- free(t);\r
- t = tnew;\r
- }\r
-}\r
-\r
-// include advanced functions\r
-\r
-#ifdef __NT__\r
-\r
-#include "modules\swfdump.c"\r
-#include "modules\swfshape.c"\r
-#include "modules\swftext.c"\r
-#include "modules\swfobject.c"\r
-#include "modules\swfbutton.c"\r
-#include "modules\swftools.c"\r
-#include "modules\swfcgi.c"\r
-#include "modules\swfbits.c"\r
-\r
-#else\r
-\r
-#include "modules/swfdump.c"\r
-#include "modules/swfshape.c"\r
-#include "modules/swftext.c"\r
-#include "modules/swfobject.c"\r
-#include "modules/swfbutton.c"\r
-#include "modules/swftools.c"\r
-#include "modules/swfcgi.c"\r
-#include "modules/swfbits.c"\r
-\r
-#endif\r
-\r
-\r
+/* rfxswf.c
+
+ Library for creating and reading SWF files or parts of it.
+ There's a module directory which provides some extended functionality.
+ Most modules are included at the bottom of this file.
+
+ 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
+
+*/
+
+#include "rfxswf.h"
+
+#ifdef HAVE_LIBJPEG
+#ifdef HAVE_JPEGLIB_H
+#include <jpeglib.h>
+#define _JPEGLIB_INCLUDED_
+#endif // HAVE_JPEGLIB_H
+#endif // HAVE_LIBJPEG
+
+#ifdef HAVE_LIBZ
+#ifdef HAVE_ZLIB_H
+#include <zlib.h>
+#define _ZLIB_INCLUDED_
+#endif // HAVE_ZLIB_H
+#endif // HAVE_LIBZ
+
+// Win32 support may be broken since it was only tested in an older version for Watcom C
+#ifdef __NT__
+# include <io.h>
+# include <malloc.h>
+# include <string.h>
+# ifdef DEBUG_RFXSWF
+# include <stdio.h>
+# endif
+#else
+#endif
+
+// internal constants
+
+#define MALLOC_SIZE 128
+#define INSERT_RFX_TAG
+
+#define MEMSIZE(l) (((l/MALLOC_SIZE)+1)*MALLOC_SIZE)
+
+// inline wrapper functions
+
+TAG * NextTag(TAG * t) { return t->next; }
+TAG * PrevTag(TAG * t) { return t->prev; }
+int GetFrameNo(TAG * t) { return t->frame; }
+U16 GetTagID(TAG * t) { return t->id; }
+U32 GetDataSize(TAG * t) { return t->len; }
+U8* GetDataSizePtr(TAG * t) { return &(t->data[t->len]); }
+U32 GetTagPos(TAG * t) { return t->pos; }
+
+// Basic Data Access Functions
+
+#define ResetBitmask(tag) if (tag->bitmask) { tag->pos++; tag->bitmask = 0; }
+#define ResetBitcount(tag) if (tag->bitcount) { tag->bitcount = 0; }
+
+// for future purpose: avoid high level lib functions to change tagpos/bitcount
+
+#define SaveTagPos(tag)
+#define RestoreTagPos(tag)
+
+void SetTagPos(TAG * t,U32 pos)
+{ ResetBitmask(t);
+ if (pos<=t->len) t->pos = pos;
+ #ifdef DEBUG_RFXSWF
+ else fprintf(stderr,"SetTagPos() out of bounds: TagID = %i\n",t->id);
+ #endif
+}
+
+U8 GetU8(TAG * t)
+{ ResetBitmask(t);
+ #ifdef DEBUG_RFXSWF
+ if (t->pos>=t->len)
+ { fprintf(stderr,"GetU8() out of bounds: TagID = %i\n",t->id);
+ return 0;
+ }
+ #endif
+ return t->data[t->pos++];
+}
+
+U16 GetU16(TAG * t)
+{ U16 res;
+ ResetBitmask(t);
+ #ifdef DEBUG_RFXSWF
+ if (t->pos>(t->len-2))
+ { fprintf(stderr,"GetU16() out of bounds: TagID = %i\n",t->id);
+ return 0;
+ }
+ #endif
+ res = t->data[t->pos] | (t->data[t->pos+1]<<8);
+ t->pos+=2;
+ return res;
+}
+
+U32 GetU32(TAG * t)
+{ U32 res;
+ ResetBitmask(t);
+ #ifdef DEBUG_RFXSWF
+ if (t->pos>(t->len-4))
+ { fprintf(stderr,"GetU32() out of bounds: TagID = %i\n",t->id);
+ return 0;
+ }
+ #endif
+ res = t->data[t->pos] | (t->data[t->pos+1]<<8) |
+ (t->data[t->pos+2]<<16) | (t->data[t->pos+3]<<24);
+ t->pos+=4;
+ return res;
+}
+
+int GetBlock(TAG * t,U8 * b,int l)
+// returns number of bytes written (<=l)
+// b = NULL -> skip data
+{ ResetBitmask(t);
+ if ((t->len-t->pos)<l) l=t->len-t->pos;
+ if (b && l) memcpy(b,&t->data[t->pos],l);
+ t->pos+=l;
+ return l;
+}
+
+int SetBlock(TAG * t,U8 * b,int l)
+// Appends Block to the end of Tagdata, returns size
+{ U32 newlen = t->len + l;
+ ResetBitcount(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.\n");
+ #endif
+ return 0;
+ }
+ t->memsize = newmem;
+ t->data = newdata;
+ }
+ if (b) memcpy(&t->data[t->len],b,l);
+ else memset(&t->data[t->len],0x00,l);
+ t->len+=l;
+ return l;
+}
+
+int SetU8(TAG * t,U8 v)
+{ ResetBitcount(t);
+ if ((t->len+1)>t->memsize) return (SetBlock(t,&v,1)==1)?0:-1;
+ t->data[t->len++] = v;
+ return 0;
+}
+
+int SetU16(TAG * t,U16 v)
+{ U8 a[2];
+ a[0] = v&0xff;
+ a[1] = v>>8;
+
+ ResetBitcount(t);
+ if ((t->len+2)>t->memsize) return (SetBlock(t,a,2)==2)?0:-1;
+ t->data[t->len++] = a[0];
+ t->data[t->len++] = a[1];
+ return 0;
+}
+
+int SetU32(TAG * t,U32 v)
+{ U8 a[4];
+ a[0] = v&0xff; // to ensure correct handling of non-intel byteorder
+ a[1] = (v>>8)&0xff;
+ a[2] = (v>>16)&0xff;
+ a[3] = (v>>24)&0xff;
+
+ ResetBitcount(t);
+ if ((t->len+4)>t->memsize) return (SetBlock(t,a,4)==4)?0:-1;
+ t->data[t->len++] = a[0];
+ t->data[t->len++] = a[1];
+ t->data[t->len++] = a[2];
+ t->data[t->len++] = a[3];
+ return 0;
+}
+
+U32 GetBits(TAG * t,int nbits)
+{ U32 res = 0;
+ if (!nbits) return 0;
+ if (!t->bitmask) t->bitmask = 0x80;
+ while (nbits)
+ { res<<=1;
+ if (t->data[t->pos]&t->bitmask) res|=1;
+ t->bitmask>>=1;
+ nbits--;
+ if (!t->bitmask)
+ { if (nbits) t->bitmask = 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 res;
+}
+
+S32 GetSBits(TAG * t,int nbits)
+{ U32 res = GetBits(t,nbits);
+ if (res&(1<<(nbits-1))) res|=(0xffffffff<<nbits);
+ return (S32)res;
+}
+
+int SetBits(TAG * t,U32 v,int nbits)
+{ U32 bm = 1<<(nbits-1);
+
+ while (nbits)
+ { if (!t->bitcount)
+ { if (FAILED(SetU8(t,0))) return -1;
+ t->bitcount = 0x80;
+ }
+ if (v&bm) t->data[t->len-1] |= t->bitcount;
+ bm>>=1;
+ t->bitcount>>=1;
+ nbits--;
+ }
+ return 0;
+}
+
+// Advanced Data Access Functions
+
+int SetRGB(TAG * t,RGBA * col)
+{ if (!t) return -1;
+ if (col)
+ { SetU8(t,col->r);
+ SetU8(t,col->g);
+ SetU8(t,col->b);
+ } else SetBlock(t,NULL,3);
+ return 0;
+}
+
+int SetRGBA(TAG * t,RGBA * col)
+{ if (!t) return -1;
+ if (col)
+ { SetU8(t,col->r);
+ SetU8(t,col->g);
+ SetU8(t,col->b);
+ SetU8(t,col->a);
+ } else SetBlock(t,NULL,4);
+ return 0;
+}
+
+int CountBits(U32 v,int nbits)
+{ int n = 33;
+ U32 m = 0x80000000;
+ if (!v) n = 0; else
+ if (v&m)
+ { while (v&m)
+ { n--;
+ m>>=1;
+ if (!m) break;
+ }
+ }
+ else
+ { while (!(v&m))
+ { n--;
+ m>>=1;
+ if (!m) break;
+ }
+ }
+ return (n>nbits)?n:nbits;
+}
+
+int GetRect(TAG * t,SRECT * r)
+{ int nbits;
+ SRECT dummy;
+ if (!r) r = &dummy;
+ nbits = (int) GetBits(t,5);
+ r->xmin = GetSBits(t,nbits);
+ r->xmax = GetSBits(t,nbits);
+ r->ymin = GetSBits(t,nbits);
+ r->ymax = GetSBits(t,nbits);
+ return 0;
+}
+
+int SetRect(TAG * t,SRECT * r)
+{ int nbits;
+
+ nbits = CountBits(r->xmin,0);
+ nbits = CountBits(r->xmax,nbits);
+ nbits = CountBits(r->ymin,nbits);
+ nbits = CountBits(r->ymax,nbits);
+
+ SetBits(t,nbits,5);
+ SetBits(t,r->xmin,nbits);
+ SetBits(t,r->xmax,nbits);
+ SetBits(t,r->ymin,nbits);
+ SetBits(t,r->ymax,nbits);
+
+ return 0;
+}
+
+int GetMatrix(TAG * t,MATRIX * m)
+{ MATRIX dummy;
+ int nbits;
+
+ if (!m) m = &dummy;
+
+ if (!t)
+ { m->sx = m->sy = 0x10000;
+ m->r0 = m->r1 = 0;
+ m->tx = m->ty = 0;
+ return -1;
+ }
+
+ ResetBitmask(t);
+
+ if (GetBits(t,1))
+ { nbits = GetBits(t,5);
+ m->sx = GetSBits(t,nbits);
+ m->sy = GetSBits(t,nbits);
+ }
+ else m->sx = m->sy = 0x10000;
+
+ if (GetBits(t,1))
+ { nbits = GetBits(t,5);
+ m->r0 = GetSBits(t,nbits);
+ m->r1 = GetSBits(t,nbits);
+ }
+ else m->r0 = m->r1 = 0x0;
+
+ nbits = GetBits(t,5);
+ m->tx = GetSBits(t,nbits);
+ m->ty = GetSBits(t,nbits);
+
+ return 0;
+}
+
+int SetMatrix(TAG * t,MATRIX * m)
+{ int nbits;
+ MATRIX ma;
+
+ if (!m)
+ { m = &ma;
+ ma.sx = ma.sy = 0x10000;
+ ma.r0 = ma.r1 = 0;
+ ma.tx = ma.ty = 0;
+ }
+
+ ResetBitcount(t);
+
+ if ((m->sx==0x10000)&&(m->sy==0x10000)) SetBits(t,0,1);
+ else
+ { SetBits(t,1,1);
+ nbits = CountBits(m->sx,0);
+ nbits = CountBits(m->sy,nbits);
+ SetBits(t,nbits,5);
+ SetBits(t,m->sx,nbits);
+ SetBits(t,m->sy,nbits);
+ }
+
+ if ((!m->r0)&&(!m->r1)) SetBits(t,0,1);
+ else
+ { SetBits(t,1,1);
+ nbits = CountBits(m->r0,0);
+ nbits = CountBits(m->r1,nbits);
+ SetBits(t,nbits,5);
+ SetBits(t,m->r0,nbits);
+ SetBits(t,m->r1,nbits);
+ }
+
+ nbits = CountBits(m->tx,0);
+ nbits = CountBits(m->ty,nbits);
+ SetBits(t,nbits,5);
+ SetBits(t,m->tx,nbits);
+ SetBits(t,m->ty,nbits);
+
+ return 0;
+}
+
+int GetCXForm(TAG * t,CXFORM * cx,U8 alpha) //FIXME: alpha should be type bool
+{ CXFORM cxf;
+ int hasadd;
+ int hasmul;
+ int nbits;
+
+ if (!cx) cx = &cxf;
+
+ cx->a0 = cx->r0 = cx->g0 = cx->b0 = 256;
+ cx->a1 = cx->r1 = cx->g1 = cx->b1 = 0;
+
+ if (!t) return 0;
+
+ ResetBitmask(t);
+ hasadd = GetBits(t,1);
+ hasmul = GetBits(t,1);
+ nbits = GetBits(t,4);
+
+ if (hasmul)
+ { cx->r0 = (S16)GetSBits(t,nbits);
+ cx->g0 = (S16)GetSBits(t,nbits);
+ cx->b0 = (S16)GetSBits(t,nbits);
+ if (alpha)
+ cx->a0 = (S16)GetSBits(t,nbits);
+ }
+
+ if (hasadd)
+ { cx->r1 = (S16)GetSBits(t,nbits);
+ cx->g1 = (S16)GetSBits(t,nbits);
+ cx->b1 = (S16)GetSBits(t,nbits);
+ if (alpha)
+ cx->a1 = (S16)GetSBits(t,nbits);
+ }
+
+ return 0;
+}
+
+int SetCXForm(TAG * t,CXFORM * cx,U8 alpha)
+{ CXFORM cxf;
+ int hasadd;
+ int hasmul;
+ int nbits;
+
+ if (!cx)
+ { cx = &cxf;
+ cx->a0 = cx->r0 = cx->g0 = cx->b0 = 256;
+ cx->a1 = cx->r1 = cx->g1 = cx->b1 = 0;
+ }
+
+ if (!alpha)
+ { cx->a0 = 256;
+ cx->a1 = 0;
+ }
+
+ nbits = 0;
+
+ hasmul = (cx->a0!=256)||(cx->r0!=256)||(cx->g0!=256)||(cx->b0!=256);
+ hasadd = cx->a1|cx->r1|cx->g1|cx->b1;
+
+ if (hasmul)
+ { if (alpha) nbits = CountBits((S32)cx->a0,nbits);
+ nbits = CountBits((S32)cx->r0,nbits);
+ nbits = CountBits((S32)cx->g0,nbits);
+ nbits = CountBits((S32)cx->b0,nbits);
+ }
+
+ if (hasadd)
+ { if (alpha) nbits = CountBits((S32)cx->a1,nbits);
+ nbits = CountBits((S32)cx->r1,nbits);
+ nbits = CountBits((S32)cx->g1,nbits);
+ nbits = CountBits((S32)cx->b1,nbits);
+ }
+
+ ResetBitcount(t);
+ SetBits(t,hasadd?1:0,1);
+ SetBits(t,hasmul?1:0,1);
+ SetBits(t,nbits,4);
+
+ if (hasmul)
+ { SetBits(t,cx->r0,nbits);
+ SetBits(t,cx->g0,nbits);
+ SetBits(t,cx->b0,nbits);
+ if (alpha) SetBits(t,cx->a0,nbits);
+ }
+
+ if (hasadd)
+ { SetBits(t,cx->r1,nbits);
+ SetBits(t,cx->g1,nbits);
+ SetBits(t,cx->b1,nbits);
+ if (alpha) SetBits(t,cx->a1,nbits);
+ }
+
+ return 0;
+}
+
+int GetPoint(TAG * t,SPOINT * p) { return 0; }
+int SetPoint(TAG * t,SPOINT * p) { return 0; }
+
+// Tag List Manipulating Functions
+
+int RFXSWF_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;
+}
+
+#define UpdateFrame(a,b) RFXSWF_UpdateFrame(a,b)
+
+TAG * InsertTag(TAG * after,U16 id) // updates frames, if nescessary
+{ TAG * t;
+
+ t = (TAG *)malloc(sizeof(TAG));
+ if (t)
+ { memset(t,0x00,sizeof(TAG));
+ t->id = id;
+ t->bitcount = 0x80;
+
+ 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) UpdateFrame(t->next,+1);
+ }
+ }
+ return t;
+}
+
+int DeleteTag(TAG * t)
+{ if (!t) return -1;
+
+ if (t->id==ST_SHOWFRAME) UpdateFrame(t->next,-1);
+
+ 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;
+}
+
+TAG * RFXSWF_ReadTag(int handle,TAG * prev)
+{ TAG * t;
+ U16 raw;
+ U32 len;
+ int id;
+
+ if (read(handle,&raw,2)!=2) return NULL;
+
+ len = raw&0x3f;
+ id = raw>>6;
+
+ if (len==0x3f)
+ { if (read(handle,&len,4)!=4) return NULL;
+ }
+
+ if (id==ST_DEFINESPRITE) len = 2*sizeof(U16);
+ // Sprite handling fix: Flaten sprite tree
+
+ t = (TAG *)malloc(sizeof(TAG));
+
+ if (!t)
+ {
+ #ifdef DEBUG_RFXSWF
+ fprintf(stderr,"Fatal Error: malloc()/realloc() failed.\n");
+ #endif
+ return NULL;
+ }
+
+ memset(t,0x00,sizeof(TAG));
+
+ t->len = len;
+ t->id = id;
+
+ if (t->len)
+ { t->data = (U8*)malloc(t->len);
+ if (!t->data)
+ {
+ #ifdef DEBUG_RFXSWF
+ fprintf(stderr,"Fatal Error: malloc()/realloc() failed.\n");
+ #endif
+ return NULL;
+ }
+ t->memsize = t->len;
+ if (read(handle,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;
+ }
+
+ return t;
+}
+
+int DefineSprite_GetRealSize(TAG * t);
+
+int RFXSWF_WriteTag(int handle,TAG * t)
+// returns tag length in bytes (incl. Header), -1 = Error
+// handle = -1 -> no output
+{ U16 raw[3];
+ U32 len;
+ int short_tag;
+
+ if (!t) return -1;
+
+ len = (t->id==ST_DEFINESPRITE)?DefineSprite_GetRealSize(t):t->len;
+
+ short_tag = len<0x3f;
+
+ if (handle>=0)
+ { if (short_tag)
+ { raw[0] = len|((t->id&0x3ff)<<6);
+ if (write(handle,raw,2)!=2)
+ {
+ #ifdef DEBUG_RFXSWF
+ fprintf(stderr,"WriteTag() failed: Short Header.\n");
+ #endif
+ return -1;
+ }
+ }
+ else
+ { raw[0] = (t->id<<6)|0x3f;
+ raw[1] = (U16)(len&0xffff);
+ raw[2] = (U16)(len>>16);
+ if (write(handle,raw,6)!=6)
+ {
+ #ifdef DEBUG_RFXSWF
+ fprintf(stderr,"WriteTag() failed: Long Header.\n");
+ #endif
+ return -1;
+ }
+ }
+
+ if (t->data)
+ { if (write(handle,t->data,t->len)!=t->len)
+ {
+ #ifdef DEBUG_RFXSWF
+ fprintf(stderr,"WriteTag() failed: Data.\n");
+ #endif
+ return -1;
+ }
+ }
+ #ifdef DEBUG_RFXSWF
+ else if (t->len) fprintf(stderr,"WriteTag(): Tag Data Error, id=%i\n",t->id);
+ #endif
+ }
+
+ return t->len+(short_tag?2:6);
+}
+
+int DefineSprite_GetRealSize(TAG * t)
+// Sprite Handling: Helper function to pack DefineSprite-Tag
+{ U32 len = t->len;
+ do
+ { t = NextTag(t);
+ if (t->id!=ST_DEFINESPRITE) len += RFXSWF_WriteTag(-1,t);
+ else t = NULL;
+ } while (t&&(t->id!=ST_END));
+ return len;
+}
+
+#define ReadTag(a,b) RFXSWF_ReadTag(a,b)
+#define WriteTag(a,b) RFXSWF_WriteTag(a,b)
+
+// Movie Functions
+
+int ReadSWF(int handle,SWF * swf) // Reads SWF to memory (malloc'ed), returns length or <0 if fails
+{
+ if (!swf) return -1;
+ memset(swf,0x00,sizeof(SWF));
+
+ { char b[32]; // read Header
+ TAG t1;
+ TAG * t;
+
+ memset(&t1,0x00,sizeof(TAG));
+
+ if ((t1.len=read(handle,b,32))<21) return -1;
+ t1.data = (U8*)b;
+
+ if (GetU8(&t1)!=(U8)'F') return -1;
+ if (GetU8(&t1)!=(U8)'W') return -1;
+ if (GetU8(&t1)!=(U8)'S') return -1;
+
+ swf->FileVersion = GetU8(&t1);
+ swf->FileSize = GetU32(&t1);
+ GetRect(&t1,&swf->MovieSize);
+ swf->FrameRate = GetU16(&t1);
+ swf->FrameCount = GetU16(&t1);
+
+ GetU8(&t1);
+ lseek(handle,GetTagPos(&t1)-1,SEEK_SET);
+
+ // reda tags and connect to list
+ t = &t1;
+ while (t) t = ReadTag(handle,t);
+ swf->FirstTag = t1.next;
+ t1.next->prev = NULL;
+ }
+
+ return 0;
+}
+int WriteSWF(int handle,SWF * swf) // Writes SWF to file, returns length or <0 if fails
+{ U32 len;
+ TAG * t;
+
+ if (!swf) return -1;
+
+ // Insert REFLEX Tag
+
+#ifdef INSERT_RFX_TAG
+
+ if (NextTag(swf->FirstTag))
+ if (GetTagID(NextTag(swf->FirstTag))!=ST_REFLEX)
+ SetBlock(InsertTag(swf->FirstTag,ST_REFLEX),"rfx",3);
+
+#endif // INSERT_RFX_TAG
+
+ // Count Frames + File Size
+
+ len = 0;
+ t = swf->FirstTag;
+ swf->FrameCount = 0;
+
+ while(t)
+ { len += WriteTag(-1,t);
+ if (t->id==ST_SHOWFRAME) swf->FrameCount++;
+ t = NextTag(t);
+ }
+
+ { TAG t1;
+ char b[64];
+ U32 l;
+
+ memset(&t1,0x00,sizeof(TAG));
+ t1.data = (U8*)b;
+ t1.memsize = 64;
+
+ SetU8(&t1,'F');
+ SetU8(&t1,'W');
+ SetU8(&t1,'S');
+ SetU8(&t1,swf->FileVersion);
+
+ SetU32(&t1,0); // Keep space for filesize
+ SetRect(&t1,&swf->MovieSize);
+ SetU16(&t1,swf->FrameRate);
+ SetU16(&t1,swf->FrameCount);
+
+ l = GetDataSize(&t1);
+ swf->FileSize = l+len;
+ t1.len = 4; // bad & ugly trick !
+ SetU32(&t1,swf->FileSize);
+
+ if (handle>=0)
+ {
+ int ret = write(handle,b,l);
+ if (ret!=l)
+ {
+ #ifdef DEBUG_RFXSWF
+ printf("ret:%d (fd:%d)\n",ret, handle);
+ perror("write:");
+ fprintf(stderr,"WriteSWF() failed: Header.\n");
+ #endif
+ return -1;
+ }
+
+ t = swf->FirstTag;
+ while (t)
+ { if (WriteTag(handle,t)<0) return -1;
+ t = NextTag(t);
+ }
+ }
+ }
+ return (int)swf->FileSize;
+}
+
+int WriteCGI(SWF * swf)
+{ int len;
+ char s[1024];
+
+ len = WriteSWF(-1,swf);
+
+ if (len<0) return -1;
+
+ sprintf(s,"Content-type: application/x-shockwave-flash\n"
+ "Accept-Ranges: bytes\n"
+ "Content-Length: %lu\n"
+ "Expires: Thu, 13 Apr 2000 23:59:59 GMT\n"
+ "\n",len);
+
+ write(fileno(stdout),s,strlen(s));
+ return WriteSWF(fileno(stdout),swf);
+}
+
+void 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);
+ t = tnew;
+ }
+}
+
+// include advanced functions
+
+#ifdef __NT__
+
+#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"
+
+#else
+
+#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"
+
+#endif
+
+