-/* 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 = &t->data[GetTagPos(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 = &t->data[GetTagPos(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 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 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 * 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 = SP(s1->sx,s1->r1,s2->sx,s2->r0);
+ d->sy = SP(s1->r0,s1->sy,s2->r1,s2->sy);
+ d->r0 = SP(s1->r0,s1->sy,s2->sx,s2->r0);
+ d->r1 = SP(s1->sx,s1->r1,s2->r1,s2->sy);
+
+ //DumpMatrix(NULL,d);
+
+ return d;
+}
+
+MATRIX * 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 = QFIX(dx1,dx);
+ m->sy = QFIX(dy2,dy);
+ m->r0 = QFIX(dy1,dx);
+ m->r1 = QFIX(dx2,dy);
+
+ return m;
+}
+
+U16 GetDefineID(TAG * t)
+// up to SWF 4.0
+{ U32 oldTagPos;
+ U16 id = 0;
+
+ oldTagPos = GetTagPos(t);
+ SetTagPos(t,0);
+
+ switch (GetTagID(t))
+ { case ST_DEFINESHAPE:
+ case ST_DEFINESHAPE2:
+ case ST_DEFINESHAPE3:
+ case ST_DEFINEMORPHSHAPE:
+ case ST_DEFINEBITS:
+ case ST_DEFINEBITSJPEG2:
+ case ST_DEFINEBITSJPEG3:
+ case ST_DEFINEBITSLOSSLESS:
+ case ST_DEFINEBITSLOSSLESS2:
+ case ST_DEFINEBUTTON:
+ case ST_DEFINEBUTTON2:
+ case ST_DEFINEBUTTONCXFORM:
+ case ST_DEFINEBUTTONSOUND:
+ case ST_DEFINEFONT:
+ case ST_DEFINEFONT2:
+ case ST_DEFINEFONTINFO:
+ case ST_DEFINETEXT:
+ case ST_DEFINETEXT2:
+ case ST_DEFINESOUND:
+ case ST_DEFINESPRITE:
+ id = GetU16(t);
+ break;
+ }
+
+ SetTagPos(t,oldTagPos);
+
+ return id;
+}
+
+U16 GetPlaceID(TAG * t)
+// up to SWF 4.0
+{ U32 oldTagPos;
+ U16 id = 0;
+
+ oldTagPos = GetTagPos(t);
+ SetTagPos(t,0);
+
+ switch (GetTagID(t))
+ { case ST_PLACEOBJECT:
+ case ST_REMOVEOBJECT:
+ case ST_STARTSOUND:
+ id = GetU16(t);
+ break;
+
+ case ST_PLACEOBJECT2:
+ { U8 flags = GetU8(t);
+ U16 d = GetU16(t);
+ id = (flags&PF_CHAR)?GetU16(t):id;
+ } break;
+
+ }
+
+ SetTagPos(t,oldTagPos);
+
+ return id;
+}
+
+int 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
+int 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
+};
+
+char isAllowedSpriteTag (TAG*tag)
+{
+ int id = tag->id;
+ int t=0;
+ while(spritetagids[t]>=0)
+ {
+ if(spritetagids[t] == id)
+ return 1;
+ t++;
+ }
+ return 0;
+}
+
+char isDefiningTag (TAG*tag)
+{
+ int id = tag->id;
+ int t=0;
+ while(definingtagids[t]>=0)
+ {
+ if(definingtagids[t] == id)
+ return 1;
+ t++;
+ }
+ return 0;
+}
+
+U16 GetDepth(TAG * t)
+// up to SWF 4.0
+{
+ U16 depth = 0;
+ U32 oldTagPos;
+ oldTagPos = GetTagPos(t);
+ SetTagPos(t,0);
+
+ switch (GetTagID(t))
+ { case ST_PLACEOBJECT:
+ case ST_REMOVEOBJECT:
+ GetU16(t); //id
+ depth = GetU16(t);
+ break;
+ case ST_REMOVEOBJECT2:
+ depth = GetU16(t);
+ break;
+ case ST_PLACEOBJECT2:
+ { U8 flags = GetU8(t);
+ depth = GetU16(t);
+ } break;
+ }
+ SetTagPos(t,oldTagPos);
+ return depth;
+}
+
+char* GetName(TAG * t)
+{
+ char* name = 0;
+ U32 oldTagPos;
+ MATRIX m;
+ CXFORM c;
+ oldTagPos = GetTagPos(t);
+ SetTagPos(t,0);
+ switch(GetTagID(t))
+ {
+ case ST_FRAMELABEL:
+ name = &t->data[GetTagPos(t)];
+ break;
+ case ST_PLACEOBJECT2: {
+ U8 flags = GetU8(t);
+ GetU16(t); //depth;
+ if(flags&PF_CHAR)
+ GetU16(t); //id
+ if(flags&PF_MATRIX)
+ GetMatrix(t, &m);
+ if(flags&PF_CXFORM)
+ GetCXForm(t, &c, 1);
+ if(flags&PF_RATIO)
+ GetU16(t);
+ if(flags&PF_NAME) {
+ ResetBitmask(t);
+ name = &t->data[GetTagPos(t)];
+ }
+ }
+ break;
+ }
+ SetTagPos(t,oldTagPos);
+ return name;
+}
+
git.asbjorn.biz / swftools.git / blobdiff