+/* used in enumerateUsedIDs */
+void swf_GetMorphGradient(TAG * tag, GRADIENT * gradient1, GRADIENT * gradient2)
+{
+ int t;
+ int num = swf_GetU8(tag) & 15;
+ if(gradient1) gradient1->num = num;
+ if(gradient2) gradient2->num = num;
+
+ if(gradient1) {
+ gradient1->num = num;
+ gradient1->rgba = (RGBA*)rfx_calloc(sizeof(RGBA)*gradient1->num);
+ gradient1->ratios = (U8*)rfx_calloc(sizeof(gradient1->ratios[0])*gradient1->num);
+ }
+ if(gradient2) {
+ gradient2->num = num;
+ gradient2->rgba = (RGBA*)rfx_calloc(sizeof(RGBA)*gradient2->num);
+ gradient2->ratios = (U8*)rfx_calloc(sizeof(gradient2->ratios[0])*gradient2->num);
+ }
+ for(t=0;t<num;t++)
+ {
+ U8 ratio;
+ RGBA color;
+
+ ratio = swf_GetU8(tag);
+ swf_GetRGBA(tag, &color);
+ if(gradient1) {
+ gradient1->ratios[t] = ratio;
+ gradient1->rgba[t] = color;
+ }
+
+ ratio = swf_GetU8(tag);
+ swf_GetRGBA(tag, &color);
+ if(gradient2) {
+ gradient2->ratios[t] = ratio;
+ gradient2->rgba[t] = color;
+ }
+ }
+}
+
+#define DEBUG_ENUMERATE if(0)
+//#define DEBUG_ENUMERATE
+
+void enumerateUsedIDs_fillstyle(TAG * tag, int t, void (*callback)(TAG*, int, void*), void*callback_data, int num, int morph)
+{
+ int type;
+ type = swf_GetU8(tag); //type
+ DEBUG_ENUMERATE printf("fill style %d) type=%02x (tagpos=%d)\n", t, type, tag->pos);
+ if(type == 0) {
+ RGBA color;
+ if(num >= 3)
+ {swf_GetRGBA(tag, &color);if(morph) swf_GetRGBA(tag, NULL);}
+ else
+ {swf_GetRGB(tag, &color);if(morph) swf_GetRGB(tag, NULL);}
+ DEBUG_ENUMERATE printf(" %02x%02x%02x%02x\n", color.r,color.g,color.b,color.a);
+ }
+ else if(type == 0x10 || type == 0x12 || type == 0x13)
+ {
+ swf_ResetReadBits(tag);
+ MATRIX m;
+ swf_GetMatrix(tag, &m);
+ DEBUG_ENUMERATE swf_DumpMatrix(stdout, &m);
+ if(morph) {
+ swf_GetMatrix(tag, &m);
+ DEBUG_ENUMERATE swf_DumpMatrix(stdout, &m);
+ }
+ swf_ResetReadBits(tag);
+ if(morph) {
+ swf_GetMorphGradient(tag, NULL, NULL);
+ if(type == 0x13) {
+ swf_GetU16(tag);
+ swf_GetU16(tag);
+ }
+ } else {
+ GRADIENT g;
+ swf_GetGradient(tag, &g, /*alpha*/ num>=3?1:0);
+ DEBUG_ENUMERATE swf_DumpGradient(stdout, &g);
+ if(type == 0x13)
+ swf_GetU16(tag);
+ }
+ }
+ else if(type == 0x40 || type == 0x41 || type == 0x42 || type == 0x43)
+ {
+ swf_ResetReadBits(tag);
+ 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 in tag %02d\n",type, tag->id);
+ }
+}
+
+void enumerateUsedIDs_linestyle(TAG * tag, int t, void (*callback)(TAG*, int, void*), void*callback_data, int num, int morph)
+{
+ U16 width;
+ RGBA color;
+ width = swf_GetU16(tag);
+ char fill=0;
+ if(morph)
+ swf_GetU16(tag);
+ if(num >= 4) {
+ U16 flags = swf_GetU16(tag);
+ DEBUG_ENUMERATE printf("line style %d) flags: %08x\n", t, flags);
+ if((flags & 0x30) == 0x20) {
+ U16 miter = swf_GetU16(tag); // miter limit
+ DEBUG_ENUMERATE printf("line style %d) miter join: %08x\n", t, miter);
+ }
+ if(flags & 0x08) {
+ fill = 1;
+ }
+ }
+ if(!fill) {
+ if(num >= 3)
+ {swf_GetRGBA(tag, &color);if(morph) swf_GetRGBA(tag, NULL);}
+ else
+ {swf_GetRGB(tag, &color);if(morph) swf_GetRGB(tag, NULL);}
+ } else {
+ enumerateUsedIDs_fillstyle(tag, t, callback, callback_data, num, morph);
+ }
+ DEBUG_ENUMERATE printf("line style %d) width=%.2f color=%02x%02x%02x%02x \n", t, width/20.0, color.r,color.g,color.b,color.a);
+}
+
+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) // defineshape2,3,4 only
+ count = swf_GetU16(tag);
+
+ DEBUG_ENUMERATE printf("%d fill styles\n", count);
+ for(t=0;t<count;t++)
+ {
+ enumerateUsedIDs_fillstyle(tag, t, callback, callback_data, num, morph);
+ }
+ swf_ResetReadBits(tag);
+ count = swf_GetU8(tag); // line style array
+ if(count == 0xff)
+ count = swf_GetU16(tag);
+ DEBUG_ENUMERATE printf("%d line styles\n", count);
+ for(t=0;t<count;t++)
+ {
+ enumerateUsedIDs_linestyle(tag, t, callback, callback_data, num, morph);
+ }
+}
+
+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_DEFINEBUTTONSOUND: {
+ int t;
+ callback(tag, tag->pos + base, callback_data);
+ swf_GetU16(tag); //button id
+ for(t=0;t<4;t++) {
+ int flags;
+ callback(tag, tag->pos + base, callback_data);
+ U16 sound_id = swf_GetU16(tag); //sound id
+ if(!sound_id)
+ continue;
+ 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_DEFINEBUTTONCXFORM:
+ callback(tag, tag->pos + base, callback_data); //button id
+ break;
+
+ case ST_SYMBOLCLASS:
+ 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_IMPORTASSETS:
+ case ST_IMPORTASSETS2: {
+ swf_GetString(tag); //count
+ swf_GetU8(tag); //reserved
+ swf_GetU8(tag); //reserved
+ int num = swf_GetU16(tag); //url
+ 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_DOABC:
+ case ST_RAWABC:
+ break;
+
+ case ST_FREECHARACTER: /* unusual tags, which all start with an ID */
+ case ST_NAMECHARACTER:
+ case ST_DEFINEFONTNAME:
+ case ST_GENERATORTEXT:
+ 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_PLACEOBJECT3:
+ // only if placeflaghascharacter
+ if(!(tag->data[0]&2))
+ break;
+ callback(tag, 4 + 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 = (U8*)rfx_alloc(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(0, 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)
+ {
+ U8 flags = swf_GetU8(tag);
+ if(!flags) //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);
+ }
+ if(flags&0x10) {
+ U8 num = swf_GetU8(tag);
+ int t;
+ for(t=0;t<num;t++) {
+ swf_DeleteFilter(swf_GetFilter(tag));
+ }
+ }
+ if(flags&0x20) {
+ U8 blendmode = swf_GetU8(tag);
+ }
+ }
+ // ...
+ }
+ 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;
+ int t;
+ swf_ResetReadBits(tag);
+ flags = swf_GetBits(tag, 8);
+ if(!flags) break;
+
+ 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);
+ }
+
+ flags = swf_GetBits(tag, 8);
+ if(!flags) break;
+ swf_ResetReadBits(tag);
+ for(t=0;t<flags;t++) {
+ swf_GetBits(tag, glyphbits);
+ swf_GetBits(tag, advancebits);
+ }
+ }
+ break;
+ }
+ case ST_DEFINEFONTALIGNZONES:
+ case ST_DEFINESCALINGGRID:
+ case ST_GLYPHNAMES:
+ case ST_CSMTEXTSETTINGS:
+ case ST_DEFINEFONTINFO:
+ case ST_DEFINEFONTINFO2:
+ case ST_VIDEOFRAME:
+ callback(tag, tag->pos + base, callback_data);
+ break;
+ case ST_DEFINEVIDEOSTREAM:
+ break;
+
+ case ST_DOINITACTION:
+ callback(tag, tag->pos + base, callback_data);
+ break;
+
+ case ST_DEFINEMORPHSHAPE2:
+ case ST_DEFINESHAPE4:
+ num++;
+ case ST_DEFINEMORPHSHAPE:
+ case ST_DEFINESHAPE3:
+ num++; //fallthrough
+ case ST_DEFINESHAPE2:
+ num++; //fallthrough
+ case ST_DEFINESHAPE: {
+ int fillbits;
+ int linebits;
+ int id;
+ int numshapes = 1;
+ int morph = 0;
+ if(tag->id == ST_DEFINEMORPHSHAPE || tag->id==ST_DEFINEMORPHSHAPE2) {
+ numshapes = 2;
+ morph = 1;
+ }
+
+ id = swf_GetU16(tag); // id;
+ SRECT r={0,0,0,0},r2={0,0,0,0};
+ swf_GetRect(tag, &r); // shape bounds
+ if(morph) {
+ swf_ResetReadBits(tag);
+ swf_GetRect(tag, NULL); // shape bounds2
+ if(num>=4) {
+ swf_ResetReadBits(tag);
+ swf_GetRect(tag, NULL); // edge bounds1
+ }
+ }
+ if(num>=4) {
+ swf_ResetReadBits(tag);
+ swf_GetRect(tag, &r2); // edge bounds
+ U8 flags = swf_GetU8(tag); // flags, &1: contains scaling stroke, &2: contains non-scaling stroke
+ DEBUG_ENUMERATE printf("flags: %02x (1=scaling strokes, 2=non-scaling strokes)\n", flags);
+ }
+ if(morph) {
+ swf_GetU32(tag); //offset to endedges
+ }
+
+ DEBUG_ENUMERATE printf("Tag:%d Name:%s ID:%d\n", tag->id, swf_TagGetName(tag), id);
+ DEBUG_ENUMERATE printf("BBox %.2f %.2f %.2f %.2f\n", r.xmin/20.0,r.ymin/20.0,r.xmax/20.0,r.ymax/20.0);
+ DEBUG_ENUMERATE printf("BBox %.2f %.2f %.2f %.2f\n", r2.xmin/20.0,r2.ymin/20.0,r2.xmax/20.0,r2.ymax/20.0);
+
+ DEBUG_ENUMERATE printf("style tag pos: %d\n", tag->pos);
+ enumerateUsedIDs_styles(tag, callback, callback_data, num, morph);
+ DEBUG_ENUMERATE printf("-------\n");
+ swf_ResetReadBits(tag);
+ while(--numshapes>=0) /* morph shapes define two shapes */
+ {
+ DEBUG_ENUMERATE printf("shape:%d\n", numshapes);
+ fillbits = swf_GetBits(tag, 4);
+ linebits = swf_GetBits(tag, 4);
+ DEBUG_ENUMERATE printf("fillbits=%d linebits=%d\n", fillbits, linebits);
+ swf_ResetReadBits(tag);
+ int x=0,y=0;
+ 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);
+ x = swf_GetBits(tag, n); //x
+ y = swf_GetBits(tag, n); //y
+ DEBUG_ENUMERATE printf("moveTo %.2f %.2f\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
+ x += swf_GetSBits(tag, n); //delta x
+ y += swf_GetSBits(tag, n); //delta y
+ DEBUG_ENUMERATE printf("lineTo %.2f %.2f\n",x/20.0,y/20.0);
+ } else {
+ int v=swf_GetBits(tag, 1);
+ int d;
+ d = swf_GetSBits(tag, n); //vert/horz
+ if(!v)
+ x += d;
+ else
+ y += d;
+ DEBUG_ENUMERATE printf("lineTo %.2f %.2f (%s)\n",x/20.0,y/20.0, v?"vertical":"horizontal");
+ }
+ } 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("splineTo %.2f %.2f %.2f %.2f\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);
+}
+
+char swf_Relocate (SWF*swf, char*bitmap)
+{
+ TAG*tag;
+ int slaveids[65536];
+ memset(slaveids, -1, sizeof(slaveids));
+ tag = swf->firstTag;
+ char ok = 1;
+
+ int current_id=0;
+#define NEW_ID(n) \
+ for(current_id++;current_id<65536;current_id++) { \
+ if(!bitmap[current_id]) { \
+ n = current_id; \
+ break; \
+ } \
+ } \
+ if(current_id==65536) { \
+ fprintf(stderr, "swf_Relocate: Couldn't relocate: Out of IDs\n"); \
+ return 0; \
+ }
+
+ while(tag)
+ {
+ int num;
+ int *ptr;
+
+ if(swf_isDefiningTag(tag))
+ {
+ int newid;
+ int id;
+
+ id = swf_GetDefineID(tag); //own id
+
+ if(!bitmap[id]) { //free
+ newid = id;
+ } else if(slaveids[id]>0) {
+ newid = slaveids[id];
+ } else {
+ NEW_ID(newid);
+ }
+
+ bitmap[newid] = 1;
+ slaveids[id] = newid;
+
+ swf_SetDefineID(tag, newid);
+ }
+
+ num = swf_GetNumUsedIDs(tag);
+ if(num) {
+ ptr = (int*)rfx_alloc(sizeof(int)*num);
+ swf_GetUsedIDs(tag, ptr);
+ int t;
+ for(t=0;t<num;t++) {
+ int id = GET16(&tag->data[ptr[t]]);
+ if(slaveids[id]<0) {
+ if(!id && bitmap[id]) {
+ /* id 0 is only used in SWF versions >=9. It's the ID of
+ the main timeline. It's used in e.g. SYMBOLTAG tags, but
+ never defined, so if we're asked to reallocate it, we have
+ to allocate an ID for it on the fly. */
+ int newid;
+ NEW_ID(newid);
+ bitmap[newid] = 1;
+ slaveids[id] = newid;
+ id = newid;
+ } else if(!bitmap[id]) {
+ /* well- we don't know this id, but it's not reserved anyway, so just
+ leave it alone */
+ } else {
+ /* this actually happens with files created with Flash CS4 and never.
+ Apparently e.g. DefineButton tags are able to use forward declarations of objects. */
+ fprintf(stderr, "warning: Mapping id (%d) never encountered before in %s\n", id,
+ swf_TagGetName(tag));
+ int newid;
+ NEW_ID(newid);
+ id = slaveids[id] = newid;
+ ok = 0;
+ }
+ } else {
+ id = slaveids[id];
+ }
+ PUT16(&tag->data[ptr[t]], id);
+ }
+ free(ptr);
+ }
+ tag=tag->next;
+ }
+ return ok;
+}
+
+/* untested */
+void swf_Relocate2(SWF*swf, int*id2id)
+{
+ TAG*tag;
+ tag = swf->firstTag;
+ while(tag) {
+ if(swf_isDefiningTag(tag)) {
+ int id = swf_GetDefineID(tag);
+ id = id2id[id];
+ if(id>=0) {
+ swf_SetDefineID(tag, id);
+ }
+ }
+ int num = swf_GetNumUsedIDs(tag);
+ if(num) {
+ int *ptr;
+ int t;
+ ptr = (int*)rfx_alloc(sizeof(int)*num);
+ swf_GetUsedIDs(tag, ptr);
+ for(t=0;t<num;t++) {
+ int id = GET16(&tag->data[ptr[t]]);
+ id = id2id[id];
+ if(id>=0) {
+ PUT16(&tag->data[ptr[t]], id);
+ }
+ }
+ free(ptr);
+ }
+ }
+}
+
+void swf_RelocateDepth(SWF*swf, char*bitmap)
+{
+ TAG*tag;
+ int nr;
+ tag = swf->firstTag;
+ for(nr=65535;nr>=0;nr--) {
+ if(bitmap[nr] != 0)
+ break;
+ }
+ // now nr is the highest used depth. So we start
+ // assigning depths at nr+1
+ nr++;
+
+ while(tag)
+ {
+ int depth;
+ /* TODO * clip depths
+ * sprites
+ */
+ if(tag->id == ST_PLACEOBJECT2) {
+ SWFPLACEOBJECT obj;
+ swf_GetPlaceObject(tag, &obj);
+ if(obj.clipdepth) {
+ int newdepth = obj.clipdepth+nr;
+ if(newdepth>65535) {
+ fprintf(stderr, "Couldn't relocate depths: too large values\n");
+ newdepth = 65535;
+ }
+ obj.clipdepth = newdepth;
+ swf_ResetTag(tag, ST_PLACEOBJECT2);
+ swf_SetPlaceObject(tag, &obj);
+ }
+ swf_PlaceObjectFree(&obj);
+ }
+
+ depth = swf_GetDepth(tag);
+ if(depth>=0) {
+ int newdepth = depth+nr;
+ if(newdepth>65535) {
+ fprintf(stderr, "Couldn't relocate depths: too large values\n");
+ newdepth = 65535;
+ }
+ swf_SetDepth(tag, newdepth);
+ }
+ tag=tag->next;
+ }
+}
+
+U8 swf_isShapeTag(TAG*tag)
+{
+ if(tag->id == ST_DEFINESHAPE ||
+ tag->id == ST_DEFINESHAPE2 ||
+ tag->id == ST_DEFINESHAPE3 ||
+ tag->id == ST_DEFINESHAPE4)
+ return 1;
+ return 0;
+}
+
+U8 swf_isPlaceTag(TAG*tag)
+{
+ if(tag->id == ST_PLACEOBJECT ||
+ tag->id == ST_PLACEOBJECT2 ||
+ tag->id == ST_PLACEOBJECT3)
+ return 1;
+ return 0;
+}
+U8 swf_isTextTag(TAG*tag)
+{
+ if(tag->id == ST_DEFINETEXT ||
+ tag->id == ST_DEFINETEXT2)
+ return 1;
+ return 0;
+}
+
+U8 swf_isFontTag(TAG*tag)
+{
+ if(tag->id == ST_DEFINEFONT ||
+ tag->id == ST_DEFINEFONT2 ||
+ tag->id == ST_DEFINEFONT3 ||
+ tag->id == ST_DEFINEFONTINFO)
+ return 1;
+ return 0;
+}
+
+U8 swf_isImageTag(TAG*tag)
+{
+ if(tag->id == ST_DEFINEBITSJPEG ||
+ tag->id == ST_DEFINEBITSJPEG2 ||
+ tag->id == ST_DEFINEBITSJPEG3 ||
+ tag->id == ST_DEFINEBITSLOSSLESS ||
+ tag->id == ST_DEFINEBITSLOSSLESS2)
+ return 1;
+ return 0;
+}
+
+TAG* swf_Concatenate (TAG*list1,TAG*list2)
+{
+ TAG*tag=0,*lasttag=0;
+ char bitmap[65536];
+ char depthmap[65536];
+ SWF swf1,swf2;
+ memset(bitmap, 0, sizeof(bitmap));
+ memset(depthmap, 0, sizeof(depthmap));
+ memset(&swf1, 0, sizeof(swf1));
+ memset(&swf2, 0, sizeof(swf2));
+
+ swf1.firstTag = list1;
+ swf_FoldAll(&swf1);
+ swf2.firstTag = list2;
+ swf_FoldAll(&swf2);
+
+ tag = list1;
+ while(tag) {
+ if(!swf_isDefiningTag(tag)) {
+ int id = swf_GetDefineID(tag);
+ bitmap[id] = 1;
+ }
+ if(tag->id == ST_PLACEOBJECT ||
+ tag->id == ST_PLACEOBJECT2) {
+ int depth = swf_GetDepth(tag);
+ depthmap[depth] = 1;
+ }
+ if(tag->id == ST_REMOVEOBJECT ||
+ tag->id == ST_REMOVEOBJECT2) {
+ int depth = swf_GetDepth(tag);
+ depthmap[depth] = 0;
+ }
+ tag = tag->next;
+ lasttag = tag;
+ }
+ swf_Relocate(&swf2, bitmap);
+ swf_RelocateDepth(&swf2, depthmap);
+ lasttag->next = swf2.firstTag;
+ swf2.firstTag->prev = lasttag;
+
+ return swf1.firstTag;
+}
+
+static int tagHash(TAG*tag)
+{
+ int t, h=0;
+ unsigned int a = 0x6b973e5a;
+ /* start at pos 2, as 0 and 1 are the id */
+ for(t=2;t<tag->len;t++) {
+ unsigned int b = a;
+ a >>= 8;
+ a += tag->data[t]*0xefbc35a5*b*(t+1);
+ }
+ return a&0x7fffffff; //always return positive number
+}
+
+void swf_Optimize(SWF*swf)
+{
+ const int hash_size = 131072;
+ char* dontremap = (char*)rfx_calloc(sizeof(char)*65536);
+ U16* remap = (U16*)rfx_alloc(sizeof(U16)*65536);
+ TAG* id2tag = (TAG*)rfx_calloc(sizeof(TAG*)*65536);
+ TAG** hashmap = (TAG**)rfx_calloc(sizeof(TAG*)*hash_size);
+ TAG* tag;
+ int t;
+ for(t=0;t<65536;t++) {
+ remap[t] = t;
+ }
+
+ swf_FoldAll(swf);
+
+ tag = swf->firstTag;
+ while(tag) {
+ /* make sure we don't remap to this tag,
+ as it might have different "helper tags"
+ FIXME: a better way would be to compare
+ the helper tags, too.
+ */
+ if(swf_isPseudoDefiningTag(tag) &&
+ tag->id != ST_NAMECHARACTER) {
+ dontremap[swf_GetDefineID(tag)] = 1;
+ }
+ tag=tag->next;
+ }
+ tag = swf->firstTag;
+ while(tag) {
+ TAG*next = tag->next;
+
+ /* remap the tag */
+ int num = swf_GetNumUsedIDs(tag);
+ int*positions = (int*)rfx_alloc(sizeof(int)*num);
+ int t;
+ swf_GetUsedIDs(tag, positions);
+ for(t=0;t<num;t++) {
+ int id = GET16(&tag->data[positions[t]]);
+ id = remap[id];
+ PUT16(&tag->data[positions[t]], id);
+ }
+ rfx_free(positions);
+
+ /* now look for previous tags with the same
+ content */
+ if(swf_isDefiningTag(tag)) {
+ TAG*tag2;
+ int id = swf_GetDefineID(tag);
+ int hash = tagHash(tag);
+ int match=0;
+ if(!dontremap[id])
+ while((tag2 = hashmap[hash%hash_size])) {
+ if(tag2 != (TAG*)0 && tag->len == tag2->len) {
+ if(memcmp(&tag->data[2],&tag2->data[2],tag->len-2) == 0) {
+ match = 1;
+ break;
+ }
+ }
+ hash++;
+ }
+ if(!match) {
+ while(hashmap[hash%hash_size]) hash++;
+ hashmap[hash%hash_size] = tag;
+ } else {
+ /* we found two identical tags- remap one
+ of them */
+ remap[id] = swf_GetDefineID(tag2);
+ swf_DeleteTag(swf, tag);
+ }
+ } else if(swf_isPseudoDefiningTag(tag)) {
+ int id = swf_GetDefineID(tag);
+ if(remap[id]!=id) {
+ /* if this tag was remapped, we don't
+ need the helper tag anymore. Discard
+ it. */
+ swf_DeleteTag(swf, tag);
+ }
+ }
+
+ tag = next;
+ }
+
+ rfx_free(dontremap);
+ rfx_free(remap);
+ rfx_free(id2tag);
+ rfx_free(hashmap);
+}
+
+void swf_SetDefineBBox(TAG * tag, SRECT newbbox)
+{
+ U16 id = 0;
+ SRECT b1;
+ swf_SetTagPos(tag,0);
+
+ switch (swf_GetTagID(tag))
+ {
+ case ST_DEFINESHAPE:
+ case ST_DEFINESHAPE2:
+ case ST_DEFINESHAPE3:
+ case ST_DEFINEEDITTEXT:
+ case ST_DEFINETEXT:
+ case ST_DEFINETEXT2:
+ case ST_DEFINEVIDEOSTREAM: {
+ U32 after_bbox_offset = 0, len;
+ U8*data;
+ id = swf_GetU16(tag);
+ swf_GetRect(tag, &b1);
+ swf_ResetReadBits(tag);
+ after_bbox_offset = tag->pos;
+ len = tag->len - after_bbox_offset;
+ data = (U8*)malloc(len);
+ memcpy(data, &tag->data[after_bbox_offset], len);
+ tag->writeBit = 0;
+ tag->len = 2;
+ swf_SetRect(tag, &newbbox);
+ swf_SetBlock(tag, data, len);
+ free(data);
+ tag->pos = tag->readBit = 0;
+
+ } break;
+ default:
+ fprintf(stderr, "rfxswf: Tag %d (%s) has no bbox\n", tag->id, swf_TagGetName(tag));
+ }
+}
+
+RGBA swf_GetSWFBackgroundColor(SWF*swf)
+{
+ TAG*t=swf->firstTag;
+ RGBA color;
+ color.r = color.b = color.g = 0;
+ color.a = 255;
+ while(t) {
+ if(t->id == ST_SETBACKGROUNDCOLOR) {
+ swf_SetTagPos(t, 0);
+ color.r = swf_GetU8(t);
+ color.g = swf_GetU8(t);
+ color.b = swf_GetU8(t);
+ break;
+ }
+ t=t->next;
+ }
+ return color;
+}
+