-/* swftools.c\r
-\r
- Math and matrix functions, misc tools\r
-\r
- Extension module for the rfxswf library.\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
-// Matrix & Math tools for SWF files\r
-\r
-#define S64 long long\r
-SFIXED SP(SFIXED a1,SFIXED a2,SFIXED b1,SFIXED b2)\r
-{ S64 a;\r
- a = (S64)a1*(S64)b1+(S64)a2*(S64)b2;\r
- return (SFIXED)(a>>16);\r
-}\r
-SFIXED QFIX(int zaehler,int nenner) // bildet Quotient von zwei INTs in SFIXED\r
-{ S64 z = zaehler<<16;\r
- S64 a = z/(S64)nenner;\r
- return (SFIXED)a;\r
-}\r
-#undef S64\r
-\r
-LPMATRIX MatrixJoin(LPMATRIX d,LPMATRIX s1,LPMATRIX s2)\r
-{ \r
- if (!d) return NULL;\r
- if (!s1) return (s2)?(LPMATRIX)memcpy(d,s2,sizeof(MATRIX)):NULL;\r
- if (!s2) return (LPMATRIX)memcpy(d,s1,sizeof(MATRIX));\r
- \r
- d->tx = s1->tx + s2->tx;\r
- d->ty = s1->ty + s2->ty;\r
- \r
- d->sx = SP(s1->sx,s1->r1,s2->sx,s2->r0);\r
- d->sy = SP(s1->r0,s1->sy,s2->r1,s2->sy);\r
- d->r0 = SP(s1->r0,s1->sy,s2->sx,s2->r0);\r
- d->r1 = SP(s1->sx,s1->r1,s2->r1,s2->sy);\r
-\r
- //DumpMatrix(NULL,d);\r
- \r
- return d;\r
-}\r
-\r
-LPMATRIX MatrixMapTriangle(LPMATRIX m,int dx,int dy,int x0,int y0,\r
- int x1,int y1,int x2,int y2)\r
-{ int dx1 = x1 - x0;\r
- int dy1 = y1 - y0;\r
- int dx2 = x2 - x0;\r
- int dy2 = y2 - y0;\r
- \r
- if (!m) return NULL;\r
- if ((!dx)||(!dy)) return NULL; // check DIV by zero\r
-\r
- m->tx = x0;\r
- m->ty = y0;\r
- m->sx = QFIX(dx1,dx);\r
- m->sy = QFIX(dy2,dy);\r
- m->r0 = QFIX(dy1,dx);\r
- m->r1 = QFIX(dx2,dy);\r
- \r
- return m;\r
-}\r
-\r
-U16 GetDefineID(LPTAG t)\r
-// up to SWF 4.0\r
-{ U32 oldTagPos;\r
- U16 id = 0;\r
-\r
- oldTagPos = GetTagPos(t);\r
- SetTagPos(t,0);\r
-\r
- switch (GetTagID(t))\r
- { case ST_DEFINESHAPE:\r
- case ST_DEFINESHAPE2:\r
- case ST_DEFINESHAPE3:\r
- case ST_DEFINEMORPHSHAPE:\r
- case ST_DEFINEBITS:\r
- case ST_DEFINEBITSJPEG2:\r
- case ST_DEFINEBITSJPEG3:\r
- case ST_DEFINEBITSLOSSLESS:\r
- case ST_DEFINEBITSLOSSLESS2:\r
- case ST_DEFINEBUTTON:\r
- case ST_DEFINEBUTTON2:\r
- case ST_DEFINEBUTTONCXFORM:\r
- case ST_DEFINEBUTTONSOUND:\r
- case ST_DEFINEFONT:\r
- case ST_DEFINEFONT2:\r
- case ST_DEFINEFONTINFO:\r
- case ST_DEFINETEXT:\r
- case ST_DEFINETEXT2:\r
- case ST_DEFINESOUND:\r
- case ST_DEFINESPRITE:\r
- id = GetU16(t);\r
- break;\r
- }\r
-\r
- SetTagPos(t,oldTagPos);\r
-\r
- return id;\r
-}\r
-\r
-U16 GetPlaceID(LPTAG t)\r
-// up to SWF 4.0\r
-{ U32 oldTagPos;\r
- U16 id = 0;\r
-\r
- oldTagPos = GetTagPos(t);\r
- SetTagPos(t,0);\r
-\r
- switch (GetTagID(t))\r
- { case ST_PLACEOBJECT:\r
- case ST_REMOVEOBJECT:\r
- case ST_STARTSOUND:\r
- id = GetU16(t);\r
- break;\r
-\r
- case ST_PLACEOBJECT2:\r
- { U8 flags = GetU8(t);\r
- U16 d = GetU16(t);\r
- id = (flags&PF_CHAR)?GetU16(t):id;\r
- } break;\r
-\r
- }\r
-\r
- SetTagPos(t,oldTagPos);\r
-\r
- return id;\r
-}\r
-\r
-int definingtagids[] =\r
-{ST_DEFINESHAPE,\r
- ST_DEFINESHAPE2,\r
- ST_DEFINESHAPE3,\r
- ST_DEFINEMORPHSHAPE,\r
- ST_DEFINEFONT,\r
- ST_DEFINEFONT2,\r
- ST_DEFINETEXT,\r
- ST_DEFINETEXT2,\r
- ST_DEFINEEDITTEXT,\r
- ST_DEFINEBITS,\r
- ST_DEFINEBITSJPEG2,\r
- ST_DEFINEBITSJPEG3,\r
- ST_DEFINEBITSLOSSLESS,\r
- ST_DEFINEBITSLOSSLESS2,\r
- ST_DEFINEMOVIE,\r
- ST_DEFINESPRITE,\r
- ST_DEFINEBUTTON,\r
- ST_DEFINEBUTTON2,\r
- ST_DEFINESOUND,\r
- -1\r
-};\r
-\r
-// tags which may be used inside a sprite definition\r
-int spritetagids[] =\r
-{ST_SHOWFRAME,\r
- ST_PLACEOBJECT,\r
- ST_PLACEOBJECT2,\r
- ST_REMOVEOBJECT,\r
- ST_REMOVEOBJECT2, //?\r
- ST_DOACTION,\r
- ST_STARTSOUND,\r
- ST_FRAMELABEL,\r
- ST_SOUNDSTREAMHEAD,\r
- ST_SOUNDSTREAMHEAD2,\r
- ST_SOUNDSTREAMBLOCK,\r
- ST_END,\r
- -1\r
-};\r
-\r
-char isAllowedSpriteTag (TAG*tag)\r
-{\r
- int id = tag->id;\r
- int t=0;\r
- while(spritetagids[t]>=0)\r
- {\r
- if(spritetagids[t] == id) \r
- return 1;\r
- t++;\r
- }\r
- return 0; \r
-}\r
-\r
-char isDefiningTag (TAG*tag)\r
-{\r
- int id = tag->id;\r
- int t=0;\r
- while(definingtagids[t]>=0)\r
- {\r
- if(definingtagids[t] == id) \r
- return 1;\r
- t++;\r
- }\r
- return 0; \r
-}\r
-\r
-U16 GetDepth(LPTAG t)\r
-// up to SWF 4.0\r
-{ \r
- U16 depth = 0;\r
- U32 oldTagPos;\r
- oldTagPos = GetTagPos(t);\r
- SetTagPos(t,0);\r
-\r
- switch (GetTagID(t))\r
- { case ST_PLACEOBJECT:\r
- case ST_REMOVEOBJECT:\r
- GetU16(t); //id\r
- depth = GetU16(t);\r
- break;\r
- case ST_REMOVEOBJECT2:\r
- depth = GetU16(t);\r
- break;\r
- case ST_PLACEOBJECT2:\r
- { U8 flags = GetU8(t);\r
- depth = GetU16(t);\r
- } break;\r
- }\r
- SetTagPos(t,oldTagPos);\r
- return depth;\r
-}\r
-\r
-char* GetName(LPTAG t)\r
-{\r
- char* name = 0;\r
- U32 oldTagPos;\r
- MATRIX m;\r
- CXFORM c;\r
- oldTagPos = GetTagPos(t);\r
- SetTagPos(t,0);\r
- switch(GetTagID(t))\r
- {\r
- case ST_FRAMELABEL:\r
- name = GetTagPosPtr(t);\r
- break;\r
- case ST_PLACEOBJECT2: { \r
- U8 flags = GetU8(t);\r
- GetU16(t); //depth;\r
- if(flags&PF_CHAR) \r
- GetU16(t); //id\r
- if(flags&PF_MATRIX)\r
- GetMatrix(t, &m);\r
- if(flags&PF_CXFORM)\r
- GetCXForm(t, &c, 1);\r
- if(flags&PF_RATIO)\r
- GetU16(t);\r
- if(flags&PF_NAME) {\r
- ResetBitmask(t);\r
- name = GetTagPosPtr(t);\r
- }\r
- }\r
- break;\r
- }\r
- SetTagPos(t,oldTagPos);\r
- return name;\r
-}\r
-\r
+/* swftools.c
+
+ Math and matrix functions, misc tools
+
+ Extension module for the rfxswf library.
+ 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
+
+*/
+
+// Matrix & Math tools for SWF files
+
+#define S64 long long
+SFIXED RFXSWF_SP(SFIXED a1,SFIXED a2,SFIXED b1,SFIXED b2)
+{ S64 a;
+ a = (S64)a1*(S64)b1+(S64)a2*(S64)b2;
+ return (SFIXED)(a>>16);
+}
+SFIXED RFXSWF_QFIX(int zaehler,int nenner) // bildet Quotient von zwei INTs in SFIXED
+{ S64 z = zaehler<<16;
+ S64 a = z/(S64)nenner;
+ return (SFIXED)a;
+}
+#undef S64
+
+MATRIX * swf_MatrixJoin(MATRIX * d,MATRIX * s1,MATRIX * s2)
+{
+ if (!d) return NULL;
+ if (!s1) return (s2)?(MATRIX *)memcpy(d,s2,sizeof(MATRIX)):NULL;
+ if (!s2) return (MATRIX *)memcpy(d,s1,sizeof(MATRIX));
+
+ d->tx = s1->tx + s2->tx;
+ d->ty = s1->ty + s2->ty;
+
+ d->sx = RFXSWF_SP(s1->sx,s1->r1,s2->sx,s2->r0);
+ d->sy = RFXSWF_SP(s1->r0,s1->sy,s2->r1,s2->sy);
+ d->r0 = RFXSWF_SP(s1->r0,s1->sy,s2->sx,s2->r0);
+ d->r1 = RFXSWF_SP(s1->sx,s1->r1,s2->r1,s2->sy);
+
+ //DumpMatrix(NULL,d);
+
+ return d;
+}
+
+MATRIX * swf_MatrixMapTriangle(MATRIX * m,int dx,int dy,int x0,int y0,
+ int x1,int y1,int x2,int y2)
+{ int dx1 = x1 - x0;
+ int dy1 = y1 - y0;
+ int dx2 = x2 - x0;
+ int dy2 = y2 - y0;
+
+ if (!m) return NULL;
+ if ((!dx)||(!dy)) return NULL; // check DIV by zero
+
+ m->tx = x0;
+ m->ty = y0;
+ m->sx = RFXSWF_QFIX(dx1,dx);
+ m->sy = RFXSWF_QFIX(dy2,dy);
+ m->r0 = RFXSWF_QFIX(dy1,dx);
+ m->r1 = RFXSWF_QFIX(dx2,dy);
+
+ return m;
+}
+
+void swf_SetDefineID(TAG * tag, U16 newid)
+{
+ int oldlen = tag->len;
+ tag->len = 0;
+ swf_SetU16(tag, newid); /* set defining ID */
+ tag->len = oldlen;
+}
+
+U16 swf_GetDefineID(TAG * t)
+// up to SWF 4.0
+{ U32 oldTagPos;
+ U16 id = 0;
+
+ oldTagPos = swf_GetTagPos(t);
+ swf_SetTagPos(t,0);
+
+ switch (swf_GetTagID(t))
+ { case ST_DEFINESHAPE:
+ case ST_DEFINESHAPE2:
+ case ST_DEFINESHAPE3:
+ case ST_DEFINEMORPHSHAPE:
+ case ST_DEFINEEDITTEXT:
+ case ST_DEFINEBITS:
+ case ST_DEFINEBITSJPEG2:
+ case ST_DEFINEBITSJPEG3:
+ case ST_DEFINEBITSLOSSLESS:
+ case ST_DEFINEBITSLOSSLESS2:
+ case ST_DEFINEBUTTON:
+ case ST_DEFINEBUTTON2:
+ case ST_DEFINEBUTTONCXFORM: //pseudodefine
+ case ST_DEFINEBUTTONSOUND: //pseudodefine
+ case ST_DEFINEFONT:
+ case ST_DEFINEFONT2:
+ case ST_DEFINEFONTINFO: //pseudodefine
+ case ST_DEFINETEXT:
+ case ST_DEFINETEXT2:
+ case ST_DEFINESOUND:
+ case ST_DEFINESPRITE:
+ case ST_NAMECHARACTER: //pseudodefine
+ id = swf_GetU16(t);
+ break;
+ }
+
+ swf_SetTagPos(t,oldTagPos);
+
+ return id;
+}
+
+U16 swf_GetPlaceID(TAG * t)
+// up to SWF 4.0
+{ U32 oldTagPos;
+ U16 id = 0;
+
+ oldTagPos = swf_GetTagPos(t);
+ swf_SetTagPos(t,0);
+
+ switch (swf_GetTagID(t))
+ { case ST_PLACEOBJECT:
+ case ST_REMOVEOBJECT:
+ case ST_FREECHARACTER:
+ case ST_STARTSOUND:
+ id = swf_GetU16(t);
+ break;
+
+ case ST_PLACEOBJECT2:
+ { U8 flags = swf_GetU8(t);
+ U16 d = swf_GetU16(t);
+ id = (flags&PF_CHAR)?swf_GetU16(t):id;
+ } break;
+
+ }
+
+ swf_SetTagPos(t,oldTagPos);
+
+ return id;
+}
+
+static int swf_definingtagids[] =
+{ST_DEFINESHAPE,
+ ST_DEFINESHAPE2,
+ ST_DEFINESHAPE3,
+ ST_DEFINEMORPHSHAPE,
+ ST_DEFINEFONT,
+ ST_DEFINEFONT2,
+ ST_DEFINETEXT,
+ ST_DEFINETEXT2,
+ ST_DEFINEEDITTEXT,
+ ST_DEFINEBITS,
+ ST_DEFINEBITSJPEG2,
+ ST_DEFINEBITSJPEG3,
+ ST_DEFINEBITSLOSSLESS,
+ ST_DEFINEBITSLOSSLESS2,
+ ST_DEFINEMOVIE,
+ ST_DEFINESPRITE,
+ ST_DEFINEBUTTON,
+ ST_DEFINEBUTTON2,
+ ST_DEFINESOUND,
+ -1
+};
+
+// tags which may be used inside a sprite definition
+static int swf_spritetagids[] =
+{ST_SHOWFRAME,
+ ST_PLACEOBJECT,
+ ST_PLACEOBJECT2,
+ ST_REMOVEOBJECT,
+ ST_REMOVEOBJECT2, //?
+ ST_DOACTION,
+ ST_STARTSOUND,
+ ST_FRAMELABEL,
+ ST_SOUNDSTREAMHEAD,
+ ST_SOUNDSTREAMHEAD2,
+ ST_SOUNDSTREAMBLOCK,
+ ST_END,
+ -1
+};
+
+static int swf_pseudodefiningtagids[] =
+{
+ ST_DEFINEFONTINFO,
+ ST_DEFINEBUTTONCXFORM,
+ ST_DEFINEBUTTONSOUND,
+ ST_NAMECHARACTER,
+ -1
+};
+
+U8 swf_isAllowedSpriteTag(TAG * tag)
+{
+ int id = tag->id;
+ int t=0;
+ while(swf_spritetagids[t]>=0)
+ {
+ if(swf_spritetagids[t] == id)
+ return 1;
+ t++;
+ }
+ return 0;
+}
+
+U8 swf_isDefiningTag(TAG * tag)
+{
+ int id = tag->id;
+ int t=0;
+ while(swf_definingtagids[t]>=0)
+ {
+ if(swf_definingtagids[t] == id)
+ return 1;
+ t++;
+ }
+ return 0;
+}
+
+U8 swf_isPseudoDefiningTag(TAG * tag)
+{
+ int id = tag->id;
+ int t=0;
+ while(swf_pseudodefiningtagids[t]>=0)
+ {
+ if(swf_pseudodefiningtagids[t] == id)
+ return 1;
+ t++;
+ }
+ return 0;
+}
+
+U16 swf_GetDepth(TAG * t)
+// up to SWF 4.0
+{
+ U16 depth = 0;
+ U32 oldTagPos;
+ oldTagPos = swf_GetTagPos(t);
+ swf_SetTagPos(t,0);
+
+ switch (swf_GetTagID(t))
+ { case ST_PLACEOBJECT:
+ case ST_REMOVEOBJECT:
+ swf_GetU16(t); //id
+ depth = swf_GetU16(t);
+ break;
+ case ST_REMOVEOBJECT2:
+ depth = swf_GetU16(t);
+ break;
+ case ST_PLACEOBJECT2:
+ { U8 flags = swf_GetU8(t);
+ depth = swf_GetU16(t);
+ } break;
+ }
+ swf_SetTagPos(t,oldTagPos);
+ return depth;
+}
+
+char* swf_GetName(TAG * t)
+{
+ char* name = 0;
+ U32 oldTagPos;
+ MATRIX m;
+ CXFORM c;
+ oldTagPos = swf_GetTagPos(t);
+ swf_SetTagPos(t,0);
+ switch(swf_GetTagID(t))
+ {
+ case ST_FRAMELABEL:
+ name = &t->data[swf_GetTagPos(t)];
+ break;
+ case ST_PLACEOBJECT2: {
+ U8 flags = swf_GetU8(t);
+ swf_GetU16(t); //depth;
+ if(flags&PF_CHAR)
+ swf_GetU16(t); //id
+ if(flags&PF_MATRIX)
+ swf_GetMatrix(t, &m);
+ if(flags&PF_CXFORM)
+ swf_GetCXForm(t, &c, 1);
+ if(flags&PF_RATIO)
+ swf_GetU16(t);
+ if(flags&PF_NAME) {
+ swf_ResetReadBits(t);
+ name = &t->data[swf_GetTagPos(t)];
+ }
+ }
+ break;
+ }
+ swf_SetTagPos(t,oldTagPos);
+ return name;
+}
+
+/* used in enumerateUsedIDs */
+void swf_GetMorphGradient(TAG * tag, GRADIENT * gradient1, GRADIENT * gradient2)
+{
+ GRADIENT dummy1;
+ GRADIENT dummy2;
+ int t;
+ if(!gradient1)
+ gradient1 = &dummy1;
+ if(!gradient2)
+ gradient2 = &dummy2;
+ gradient1->num =
+ gradient2->num = swf_GetU8(tag);
+ for(t=0;t<gradient1->num;t++)
+ {
+ int s=t;
+ if(s>=8) //FIXME
+ s=7;
+ gradient1->ratios[t] = swf_GetU8(tag);
+ swf_GetRGBA(tag, &gradient1->rgba[t]);
+ gradient2->ratios[t] = swf_GetU8(tag);
+ swf_GetRGBA(tag, &gradient2->rgba[t]);
+ }
+}
+
+#define DEBUG_ENUMERATE if(0)
+
+static void enumerateUsedIDs_styles(TAG * tag, void (*callback)(TAG*, int, void*), void*callback_data, int num, int morph)
+{
+ U16 count;
+ int t;
+ count = swf_GetU8(tag);
+ if(count == 0xff && num>1) // defineshape2,3 only
+ count = swf_GetU16(tag);
+
+ for(t=0;t<count;t++)
+ {
+ int type;
+ U8*pos;
+ swf_ResetReadBits(tag);
+ type = swf_GetU8(tag); //type
+ if(type == 0) {
+ if(num == 3)
+ {swf_GetRGBA(tag, NULL);if(morph) swf_GetRGBA(tag, NULL);}
+ else
+ {swf_GetRGB(tag, NULL);if(morph) swf_GetRGB(tag, NULL);}
+ }
+ else if(type == 0x10 || type == 0x12)
+ {
+ swf_ResetReadBits(tag);
+ swf_GetMatrix(tag, NULL);
+ if(morph)
+ swf_GetMatrix(tag, NULL);
+ swf_ResetReadBits(tag);
+ if(morph)
+ swf_GetMorphGradient(tag, NULL, NULL);
+ else
+ swf_GetGradient(tag, NULL, /*alpha*/ num>=3?1:0);
+ }
+ else if(type == 0x40 || type == 0x41)
+ {
+ swf_ResetReadBits(tag);
+ // we made it.
+ if(tag->data[tag->pos] != 0xff ||
+ tag->data[tag->pos+1] != 0xff)
+ (callback)(tag, tag->pos, callback_data);
+
+ swf_GetU16(tag);
+ swf_ResetReadBits(tag);
+ swf_GetMatrix(tag, NULL);
+ if(morph)
+ swf_GetMatrix(tag, NULL);
+ }
+ else {
+ fprintf(stderr, "rfxswf:swftools.c Unknown fillstyle:0x%02x\n",type);
+ }
+ }
+ swf_ResetReadBits(tag);
+ count = swf_GetU8(tag); // line style array
+ if(count == 0xff)
+ count = swf_GetU16(tag);
+ for(t=0;t<count;t++)
+ {
+ swf_GetU16(tag);
+ if(morph)
+ swf_GetU16(tag);
+ if(num == 3)
+ {swf_GetRGBA(tag, NULL);if(morph) swf_GetRGBA(tag, NULL);}
+ else
+ {swf_GetRGB(tag, NULL);if(morph) swf_GetRGB(tag, NULL);}
+ }
+}
+
+void enumerateUsedIDs(TAG * tag, int base, void (*callback)(TAG*, int, void*), void*callback_data)
+{
+ int num = 1;
+ swf_ResetReadBits(tag);
+ tag->pos = 0;
+ switch(tag->id)
+ {
+ case ST_DEFINEBUTTONCXFORM: {
+ int t;
+ callback(tag, tag->pos + base, callback_data);
+ for(t=0;t<4;t++) {
+ int flags;
+ callback(tag, tag->pos + base, callback_data);
+ swf_GetU16(tag); //sound id
+ flags = swf_GetU8(tag);
+ if(flags&1)
+ swf_GetU32(tag); // in point
+ if(flags&2)
+ swf_GetU32(tag); // out points
+ if(flags&4)
+ swf_GetU16(tag); // loop count
+ if(flags&8)
+ {
+ int npoints = swf_GetU8(tag);
+ int s;
+ for(s=0;s<npoints;s++)
+ {
+ swf_GetU32(tag);
+ swf_GetU16(tag);
+ swf_GetU16(tag);
+ }
+ }
+ }
+ } break;
+ case ST_DEFINEBUTTONSOUND:
+ callback(tag, tag->pos + base, callback_data); //button id
+ break;
+
+ case ST_EXPORTASSETS: {
+ int num = swf_GetU16(tag);
+ int t;
+ for(t=0;t<num;t++) {
+ callback(tag, tag->pos + base, callback_data); //button id
+ swf_GetU16(tag); //id
+ while(swf_GetU8(tag)); //name
+ }
+ } break;
+
+ case ST_FREECHARACTER: /* unusual tags, which all start with an ID */
+ case ST_NAMECHARACTER:
+ case ST_GENERATORTEXT:
+ case ST_MX3:
+ callback(tag, tag->pos + base, callback_data);
+ break;
+ case ST_PLACEOBJECT:
+ callback(tag, tag->pos + base, callback_data);
+ break;
+ case ST_PLACEOBJECT2:
+ // only if placeflaghascharacter
+ if(!(tag->data[0]&2))
+ break;
+ callback(tag, 3 + base, callback_data);
+ break;
+ case ST_REMOVEOBJECT:
+ callback(tag, tag->pos + base, callback_data);
+ break;
+ case ST_STARTSOUND:
+ callback(tag, tag->pos + base, callback_data);
+ break;
+ case ST_DEFINESPRITE: {
+ if(tag->len <= 4)
+ break; // sprite is expanded
+
+ swf_GetU16(tag); // id
+ swf_GetU16(tag); // framenum
+
+ while(1) {
+ U16 flags = swf_GetU16(tag);
+ U32 len;
+ U16 id = flags>>6;
+ TAG *tag2 = swf_InsertTag(NULL, id);
+ len = flags&0x3f;
+ if(len == 63)
+ len = swf_GetU32(tag);
+ if(id == ST_END)
+ break;
+ tag2->len = tag2->memsize = len;
+ tag2->data = malloc(len);
+ memcpy(tag2->data, &tag->data[tag->pos], len);
+ /* I never saw recursive sprites, but they are (theoretically)
+ possible, so better add base here again */
+ enumerateUsedIDs(tag2, tag->pos + base, callback, callback_data);
+ swf_DeleteTag(tag2);
+ swf_GetBlock(tag, NULL, len);
+ }
+ }
+ break;
+ case ST_DEFINEBUTTON2: // has some font ids in the button records
+ num++;
+ //fallthrough
+ case ST_DEFINEBUTTON: {
+ swf_GetU16(tag); //button id
+ if(num>1)
+ {
+ int offset;
+ swf_GetU8(tag); //flag
+ offset = swf_GetU16(tag); //offset
+ }
+ while(1)
+ {
+ U16 charid;
+ if(!swf_GetU8(tag)) //flags
+ break;
+ callback(tag, tag->pos + base, callback_data);
+ swf_GetU16(tag); //char
+ swf_GetU16(tag); //layer
+ swf_ResetReadBits(tag);
+ swf_GetMatrix(tag, NULL);
+ if(num>1) {
+ swf_ResetReadBits(tag);
+ swf_GetCXForm(tag, NULL, 1);
+ }
+ }
+ // ...
+ }
+ break;
+ case ST_DEFINEEDITTEXT: {
+ U8 flags1,flags2;
+ swf_GetU16(tag); //id
+ swf_GetRect(tag, NULL); //bounding box
+ swf_ResetReadBits(tag);
+ flags1 = swf_GetU8(tag);
+ flags2 = swf_GetU8(tag);
+ if(flags1 & 1)
+ callback(tag, tag->pos + base, callback_data);
+ }
+ break;
+ case ST_DEFINETEXT2:
+ num ++;
+ case ST_DEFINETEXT: {
+ int glyphbits, advancebits;
+ int id;
+ id = swf_GetU16(tag); //id
+ swf_GetRect(tag, NULL); //bounding box
+ swf_ResetReadBits(tag);
+ swf_GetMatrix(tag, NULL); //matrix
+ swf_ResetReadBits(tag);
+ glyphbits = swf_GetU8(tag); //glyphbits
+ advancebits = swf_GetU8(tag); //advancebits
+ while(1) {
+ U16 flags;
+ swf_ResetReadBits(tag);
+ flags = swf_GetBits(tag, 8);
+ if(!flags) break;
+ if(flags & 128) // text style record
+ {
+ swf_ResetReadBits(tag);
+ if(flags & 8) { // hasfont
+ callback(tag, tag->pos + base, callback_data);
+ id = swf_GetU16(tag);
+ }
+ if(flags & 4) { // hascolor
+ if(num==1) swf_GetRGB(tag, NULL);
+ else swf_GetRGBA(tag, NULL);
+ }
+ if(flags & 2) { //has x offset
+ swf_ResetReadBits(tag);
+ swf_GetU16(tag);
+ }
+ if(flags & 1) { //has y offset
+ swf_ResetReadBits(tag);
+ swf_GetU16(tag);
+ }
+ if(flags & 8) { //has height
+ swf_ResetReadBits(tag);
+ swf_GetU16(tag);
+ }
+ } else { // glyph record
+ int t;
+ swf_ResetReadBits(tag);
+ for(t=0;t<flags;t++) {
+ swf_GetBits(tag, glyphbits);
+ swf_GetBits(tag, advancebits);
+ }
+ }
+ }
+ break;
+ }
+ case ST_DEFINEFONTINFO:
+ callback(tag, tag->pos + base, callback_data);
+ break;
+
+ //case ST_DEFINEMORPHSHAPE: /* disabled for now (doesn't work) */
+
+ case ST_DEFINESHAPE3: // these thingies might have bitmap ids in their fillstyles
+ num++; //fallthrough
+ case ST_DEFINESHAPE2:
+ num++; //fallthrough
+ case ST_DEFINESHAPE: {
+ int fillbits;
+ int linebits;
+ int id;
+ int morph = 0;
+ if(tag->id == ST_DEFINEMORPHSHAPE)
+ morph = 1;
+
+ id = swf_GetU16(tag); // id;
+ swf_GetRect(tag, NULL); // bounds
+ if(morph) {
+ swf_GetRect(tag, NULL); // bounds2
+ swf_GetU32(tag); //offset to endedges
+ }
+
+ DEBUG_ENUMERATE printf("Tag:%d Name:%s ID:%d\n", tag->id, swf_TagGetName(tag), id);
+
+ enumerateUsedIDs_styles(tag, callback, callback_data, num, morph);
+ DEBUG_ENUMERATE printf("-------\n");
+ while(--morph>=0) /* morph shapes define two shapes */
+ {
+ fillbits = swf_GetBits(tag, 4);
+ linebits = swf_GetBits(tag, 4);
+ DEBUG_ENUMERATE printf("%d %d\n", fillbits, linebits);
+ swf_ResetReadBits(tag);
+ while(1) {
+ int flags;
+ flags = swf_GetBits(tag, 1);
+ if(!flags) { //style change
+ flags = swf_GetBits(tag, 5);
+ if(!flags)
+ break;
+ if(flags&1) { //move
+ int n = swf_GetBits(tag, 5);
+ int x,y;
+ x = swf_GetBits(tag, n); //x
+ y = swf_GetBits(tag, n); //y
+ DEBUG_ENUMERATE printf("move %f %f\n",x/20.0,y/20.0);
+ }
+ if(flags&2) { //fill0
+ int fill0;
+ fill0 = swf_GetBits(tag, fillbits);
+ DEBUG_ENUMERATE printf("fill0 %d\n", fill0);
+ }
+ if(flags&4) { //fill1
+ int fill1;
+ fill1 = swf_GetBits(tag, fillbits);
+ DEBUG_ENUMERATE printf("fill1 %d\n", fill1);
+ }
+ if(flags&8) { //linestyle
+ int line;
+ line = swf_GetBits(tag, linebits);
+ DEBUG_ENUMERATE printf("linestyle %d\n",line);
+ }
+ if(flags&16) {
+ DEBUG_ENUMERATE printf("more fillstyles\n");
+ enumerateUsedIDs_styles(tag, callback, callback_data, num, 0);
+ fillbits = swf_GetBits(tag, 4);
+ linebits = swf_GetBits(tag, 4);
+ }
+ } else {
+ flags = swf_GetBits(tag, 1);
+ if(flags) { //straight edge
+ int n = swf_GetBits(tag, 4) + 2;
+ if(swf_GetBits(tag, 1)) { //line flag
+ int x,y;
+ x = swf_GetSBits(tag, n); //delta x
+ y = swf_GetSBits(tag, n); //delta y
+ DEBUG_ENUMERATE printf("line %f %f\n",x/20.0,y/20.0);
+ } else {
+ int v=swf_GetBits(tag, 1);
+ int d;
+ d = swf_GetSBits(tag, n); //vert/horz
+ DEBUG_ENUMERATE printf("%s %f\n",v?"vertical":"horizontal", d/20.0);
+ }
+ } else { //curved edge
+ int n = swf_GetBits(tag, 4) + 2;
+ int x1,y1,x2,y2;
+ x1 = swf_GetSBits(tag, n);
+ y1 = swf_GetSBits(tag, n);
+ x2 = swf_GetSBits(tag, n);
+ y2 = swf_GetSBits(tag, n);
+ DEBUG_ENUMERATE printf("curve %f %f %f %f\n", x1/20.0, y1/20.0, x2/20.0, y2/20.0);
+ }
+ }
+ }
+ }
+ }
+ break;
+ default:
+ break;
+ }
+}
+
+void callbackCount(TAG * t,int pos, void*ptr)
+{
+ (*(int*)ptr)++;
+ DEBUG_ENUMERATE printf("callback(%d) %d\n", pos, *(U16*)&t->data[pos]);
+}
+
+void callbackFillin(TAG * t,int pos, void*ptr)
+{
+ **(int**)ptr = pos;
+ (*(int**)ptr)++;
+ DEBUG_ENUMERATE printf("callback(%d) %d\n", pos, *(U16*)&t->data[pos]);
+}
+
+int swf_GetNumUsedIDs(TAG * t)
+{
+ int num = 0;
+ enumerateUsedIDs(t, 0, callbackCount, &num);
+ return num;
+}
+
+void swf_GetUsedIDs(TAG * t, int * positions)
+{
+ int * ptr = positions;
+ enumerateUsedIDs(t, 0, callbackFillin, &ptr);
+}
+
+void swf_Relocate (SWF*swf, char*bitmap)
+{
+ TAG*tag;
+ int slaveids[65536];
+ memset(slaveids, -1, sizeof(slaveids));
+ tag = swf->firstTag;
+ while(tag)
+ {
+ int num;
+ int *ptr;
+ int t;
+
+ if(swf_isDefiningTag(tag))
+ {
+ int newid;
+ int id;
+
+ id = swf_GetDefineID(tag); //own id
+
+ if(!bitmap[id]) { //free
+ newid = id;
+ }
+ else {
+ newid = 0;
+ for (t=1;t<65536;t++)
+ {
+ if(!bitmap[t])
+ {
+ newid = t;
+ break;
+ }
+ }
+ }
+ bitmap[newid] = 1;
+ slaveids[id] = newid;
+
+ swf_SetDefineID(tag, newid);
+ }
+
+ num = swf_GetNumUsedIDs(tag);
+ ptr = malloc(sizeof(int)*num);
+ swf_GetUsedIDs(tag, ptr);
+
+ for(t=0;t<num;t++) {
+ int id = GET16(&tag->data[ptr[t]]);
+ if(slaveids[id]<0) {
+ fprintf(stderr, "swf_Relocate: Mapping id never encountered before: %d\n", id);
+ return ;
+ }
+ id = slaveids[id];
+ PUT16(&tag->data[ptr[t]], id);
+ }
+ tag=tag->next;
+ }
+}
+
git.asbjorn.biz / swftools.git / blobdiff