Copyright (c) 2000, 2001 Rainer Böhme <rfxswf@reflex-studio.de>
- This file is distributed under the GPL, see file COPYING for details
+ 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.
-*/
+ 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.
+
+ 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 */
// Matrix & Math tools for SWF files
case ST_DEFINEFONT:
case ST_DEFINEFONT2:
case ST_DEFINEFONTINFO: //pseudodefine
+ case ST_DEFINEFONTINFO2: //pseudodefine
case ST_DEFINETEXT:
case ST_DEFINETEXT2:
case ST_DEFINESOUND:
case ST_DEFINESPRITE:
+ case ST_DEFINEMOVIE:
+ case ST_DEFINEVIDEOSTREAM:
+ case ST_GLYPHNAMES: //pseudodefine
+ case ST_VIDEOFRAME: //pseudodefine
case ST_NAMECHARACTER: //pseudodefine
+ case ST_DOINITACTION: //pseudodefine
id = swf_GetU16(t);
break;
+ default:
+ fprintf(stderr, "rfxswf: Error: tag %d (%s) has no id\n", t->id, swf_TagGetName(t));
}
swf_SetTagPos(t,oldTagPos);
return id;
}
+SRECT swf_GetDefineBBox(TAG * t)
+{
+ U32 oldTagPos;
+ U16 id = 0;
+ SRECT b1,b2;
+ memset(&b1, 0, sizeof(b1));
+
+ oldTagPos = swf_GetTagPos(t);
+ swf_SetTagPos(t,0);
+
+ swf_GetRect(0, &b1);
+
+ switch (swf_GetTagID(t))
+ { case ST_DEFINESHAPE:
+ case ST_DEFINESHAPE2:
+ case ST_DEFINESHAPE3:
+ case ST_DEFINEEDITTEXT:
+ case ST_DEFINETEXT:
+ case ST_DEFINETEXT2:
+ case ST_DEFINEVIDEOSTREAM:
+ id = swf_GetU16(t);
+ swf_GetRect(t, &b1);
+ break;
+ case ST_DEFINEMORPHSHAPE:
+ id = swf_GetU16(t);
+ swf_GetRect(t, &b1);
+ swf_GetRect(t, &b2);
+ swf_ExpandRect2(&b1, &b2);
+ break;
+ case ST_DEFINEBITSLOSSLESS:
+ case ST_DEFINEBITSLOSSLESS2:
+ case ST_DEFINEBITS:
+ case ST_DEFINEBITSJPEG2:
+ case ST_DEFINEBITSJPEG3:
+ // FIXME
+ break;
+ }
+
+ swf_SetTagPos(t,oldTagPos);
+
+ return b1;
+}
+
U16 swf_GetPlaceID(TAG * t)
// up to SWF 4.0
{ U32 oldTagPos;
ST_DEFINEBUTTON,
ST_DEFINEBUTTON2,
ST_DEFINESOUND,
+ ST_DEFINEVIDEOSTREAM,
-1
};
static int swf_pseudodefiningtagids[] =
{
ST_DEFINEFONTINFO,
+ ST_DEFINEFONTINFO2,
ST_DEFINEBUTTONCXFORM,
ST_DEFINEBUTTONSOUND,
ST_NAMECHARACTER,
+ ST_DOINITACTION,
+ ST_VIDEOFRAME,
+ ST_GLYPHNAMES,
-1
};
return 0;
}
-U16 swf_GetDepth(TAG * t)
-// up to SWF 4.0
+int swf_GetDepth(TAG * t)
{
- U16 depth = 0;
+ int depth = -1;
U32 oldTagPos;
oldTagPos = swf_GetTagPos(t);
swf_SetTagPos(t,0);
{ U8 flags = swf_GetU8(t);
depth = swf_GetU16(t);
} break;
+ case ST_SETTABINDEX:
+ {
+ depth = swf_GetU16(t);
+ }
}
swf_SetTagPos(t,oldTagPos);
return depth;
}
+void swf_SetDepth(TAG * t, U16 depth)
+{
+ switch (swf_GetTagID(t))
+ { case ST_PLACEOBJECT:
+ case ST_REMOVEOBJECT:
+ PUT16(t->data, depth);
+ break;
+ case ST_REMOVEOBJECT2:
+ PUT16(t->data, depth);
+ break;
+ case ST_PLACEOBJECT2:
+ PUT16(&t->data[1], depth);
+ break;
+ case ST_SETTABINDEX:
+ PUT16(t->data, depth);
+ break;
+ default:
+ fprintf(stderr, "rfxswf: Error: tag %d has no depth\n", t->id);
+ }
+}
+
char* swf_GetName(TAG * t)
{
char* name = 0;
swf_GetCXForm(t, &c, 1);
if(flags&PF_RATIO)
swf_GetU16(t);
+ if(flags&PF_CLIPACTION)
+ swf_GetU16(t);
if(flags&PF_NAME) {
swf_ResetReadBits(t);
name = &t->data[swf_GetTagPos(t)];
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)
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:
if(id == ST_END)
break;
tag2->len = tag2->memsize = len;
- tag2->data = malloc(len);
+ tag2->data = 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 */
}
break;
}
+ case ST_GLYPHNAMES:
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_DEFINEMORPHSHAPE:
- case ST_DEFINESHAPE3: // these thingies might have bitmap ids in their fillstyles
+ case ST_DEFINESHAPE3:
num++; //fallthrough
case ST_DEFINESHAPE2:
num++; //fallthrough
int fillbits;
int linebits;
int id;
+ int numshapes = 1;
int morph = 0;
- if(tag->id == ST_DEFINEMORPHSHAPE)
+ if(tag->id == ST_DEFINEMORPHSHAPE) {
+ numshapes = 2;
morph = 1;
+ }
id = swf_GetU16(tag); // id;
swf_GetRect(tag, NULL); // bounds
if(morph) {
+ swf_ResetReadBits(tag);
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 */
+ while(--numshapes>=0) /* morph shapes define two shapes */
{
- swf_ResetReadBits(tag); //?
+ DEBUG_ENUMERATE printf("shape:%d\n", numshapes);
fillbits = swf_GetBits(tag, 4);
linebits = swf_GetBits(tag, 4);
DEBUG_ENUMERATE printf("%d %d\n", fillbits, linebits);
}
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 ;
+ if(num) {
+ ptr = rfx_alloc(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);
}
- id = slaveids[id];
- PUT16(&tag->data[ptr[t]], id);
}
tag=tag->next;
}
}
-
+
+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)
+ {
+ /* TODO * clip depths
+ * sprites
+ */
+ int 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)
+ 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 = rfx_calloc(sizeof(char)*65536);
+ U16* remap = rfx_alloc(sizeof(U16)*65536);
+ TAG* id2tag = rfx_calloc(sizeof(TAG*)*65536);
+ TAG** hashmap = 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) {
+ int doremap=1;
+
+ TAG*next = tag->next;
+
+ /* remap the tag */
+ int num = swf_GetNumUsedIDs(tag);
+ int*positions = 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);
+ tag = tag->next;
+
+ /* 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*)(-1) && tag->len == tag2->len) {
+ int t;
+ /* start at pos 2, as 0 and 1 are the id */
+ for(t=2;t<tag->len;t++) {
+ if(tag->data[t] != tag2->data[t])
+ break;
+ }
+ if(t == tag->len) {
+ match=1;
+ }
+ }
+ if(match) {
+ /* we found two identical tags- remap one
+ of them */
+ remap[id] = swf_GetDefineID(tag2);
+ break;
+ }
+ hash++;
+ }
+ if(!match) {
+ while(hashmap[hash%hash_size]) hash++;
+ hashmap[hash%hash_size] = tag;
+ } else {
+ swf_DeleteTag(tag);
+ if(tag == swf->firstTag)
+ swf->firstTag = next;
+ doremap = 0;
+ }
+ } 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(tag);
+ if(tag == swf->firstTag)
+ swf->firstTag = next;
+ doremap = 0;
+ }
+ }
+
+ 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 = 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));
+ }
+}
+
git.asbjorn.biz / swftools.git / blobdiff