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writeim.c
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1995-02-13
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810 lines
/* writeim.c - write an Imagine 2.0 TDDD (3D Data Decription) file
* - by traversing the TTDDDLIB database
* - written by Glenn M. Lewis - 3/27/92
*/
#include <stdio.h>
#include <ctype.h>
#include "t3dlib.h"
#ifdef __STDC__
#include <stdlib.h>
#include <strings.h>
#include "writeim_protos.h"
#endif
#include <sys/types.h>
#include <sys/stat.h>
#ifdef AZTEC_C
#include <fcntl.h>
#include <exec/types.h>
#endif
static void process_INFO();
static void process_OBJ();
static void process_EXTR();
static void process_DESC();
static void process_ISTG(); /* Imagine staging file */
/* Here are a few necessary utilities */
static void put_name(world, name, size)
WORLD *world;
register char *name;
register int size;
{
while (*name && size) {
fputc(*name++, world->inp);
size--;
}
while (size--) fputc(0, world->inp); /* Pad the rest of the string w/ 0 */
}
static void put_UBYTE(world, u)
WORLD *world;
UBYTE u;
{
fputc((char)u, world->inp);
}
static void put_UWORD(world, w)
WORLD *world;
UWORD w;
{
put_UBYTE(world, (UBYTE)(w>>8));
put_UBYTE(world, (UBYTE)(w&0xFF));
}
static void put_ULONG(world, l)
WORLD *world;
ULONG l;
{
put_UWORD(world, (UWORD)(l>>16));
put_UWORD(world, (UWORD)(l&0xFFFF));
}
static void put_FRACT(world, f)
WORLD *world;
double f;
{
put_ULONG(world, (ULONG)(f*65536.0));
}
static void put_XYZ(world, st) /* Write a common string */
WORLD *world;
XYZ_st *st;
{
put_FRACT(world, st->x);
put_FRACT(world, st->y);
put_FRACT(world, st->z);
}
static void put_RGB(world, st) /* Write a common string */
WORLD *world;
RGB_st *st;
{
put_UBYTE(world, 0); /* PAD */
put_UBYTE(world, st->r);
put_UBYTE(world, st->g);
put_UBYTE(world, st->b);
}
static void write_size(world, pos)
WORLD *world;
long pos;
{
long size;
long cur = ftell(world->inp);
size = cur-pos;
if (size&1) { size++; put_UBYTE(world, (UBYTE)0); }
fseek(world->inp, pos-4L, 0);
put_ULONG(world, (ULONG)size);
fseek(world->inp, cur, 0);
}
/********************/
/* The MAIN section */
/********************/
int write_TDDD(world, myfile)
WORLD *world;
FILE *myfile;
{
long pos, pos2;
OBJECT *obj;
struct stat statbuf;
#ifdef AMIGA
int x;
#endif
if (!world || !myfile) return(0);
world->inp = myfile;
if (world->info || world->object) {
/* Don't write TDDD if there is nothing to write */
/* Start the IFF TDDD file */
put_name(world, "FORM", 4);
put_ULONG(world, 0L); /* Fill this in later [seek(,4L,0)] */
pos = ftell(world->inp); /* Save where this starting position is */
put_name(world, "TDDD", 4);
if (world->info) process_INFO(world, world->info);
for (obj = world->object; obj; obj=obj->next) {
put_name(world, "OBJ ", 4);
put_ULONG(world, 0L);
pos2 = ftell(world->inp); /* Save for later */
process_OBJ(world, obj);
write_size(world, pos2);
}
write_size(world, pos);
/* All done. Close up shop. */
fclose(world->inp);
}
/* Also write the staging file if we have staging information */
if (!world->istg) return(1);
/* Check is the staging file already exists */
if (stat("staging", &statbuf)==0) {
fprintf(stderr, "WARNING: Moving existing 'staging' file to 'staging.bak'.\n");
#ifdef AMIGA
/* We can only assume this will wait until process completes */
x = system("copy staging staging.bak");
if (x != 0) fprintf(stderr, "ERROR: Staging file copy failed\n");
#else
system("mv staging staging.bak");
wait(1);
#endif
}
if (!(world->inp = fopen("staging", "w"))) {
fprintf(stderr, "WARNING: Could not open 'staging' file for output.\n");
fprintf(stderr, "No staging information saved!\n");
world->inp = myfile;
return(1);
}
/* Output the staging file... */
/* Start the IFF ISTG file */
put_name(world, "FORM", 4);
put_ULONG(world, 0L); /* Fill this in later [seek(,4L,0)] */
pos = ftell(world->inp); /* Save where this starting position is */
put_name(world, "ISTG", 4);
process_ISTG(world);
write_size(world, pos);
/* Return the file pointer back to normal... */
fclose(world->inp);
world->inp = myfile;
return(1);
}
static void process_INFO(world, info)
WORLD *world;
INFO *info;
{
register ULONG i;
long pos;
put_name(world, "INFO", 4);
put_ULONG(world, 0L);
pos = ftell(world->inp); /* Save for later */
for (i=0; i<8; i++)
if (info->brsh[i][0]) {
put_name(world, "BRSH", 4);
put_ULONG(world, 82L);
put_UWORD(world, (UWORD)i);
put_name(world, info->brsh[i], 80);
}
for (i=0; i<8; i++)
if (info->stnc[i][0]) {
put_name(world, "STNC", 4);
put_ULONG(world, 82L);
put_UWORD(world, (UWORD)i);
put_name(world, info->stnc[i], 80);
}
for (i=0; i<8; i++)
if (info->txtr[i][0]) {
put_name(world, "TXTR", 4);
put_ULONG(world, 82L);
put_UWORD(world, (UWORD)i);
put_name(world, info->txtr[i], 80);
}
if (info->otrk[0]) {
put_name(world, "OTRK", 4);
put_ULONG(world, 18L);
put_name(world, info->otrk, 18);
}
if (info->ambi) {
put_name(world, "AMBI", 4);
put_ULONG(world, 4L);
put_RGB(world, info->ambi);
}
if (info->obsv) {
put_name(world, "OBSV", 4);
put_ULONG(world, 28L);
put_XYZ(world, &info->obsv->came);
put_XYZ(world, &info->obsv->rota);
put_FRACT(world, info->obsv->foca);
}
if (info->ostr) {
put_name(world, "OSTR", 4);
put_ULONG(world, 56L);
put_name(world, info->ostr->path, 18);
put_XYZ(world, &info->ostr->tran);
put_XYZ(world, &info->ostr->rota);
put_XYZ(world, &info->ostr->scal);
put_UWORD(world, info->ostr->info);
}
if (info->fade) {
put_name(world, "FADE", 4);
put_ULONG(world, 12L);
put_FRACT(world, info->fade->at);
put_FRACT(world, info->fade->by);
put_RGB(world, &info->fade->to);
}
if (info->skyc) {
put_name(world, "SKYC", 4);
put_ULONG(world, 8L);
put_RGB(world, &info->skyc->hori);
put_RGB(world, &info->skyc->zeni);
}
if (info->glb0) {
put_name(world, "GLB0", 4);
put_ULONG(world, 8L);
for (i=0; i<8; i++)
put_UBYTE(world, (UBYTE)info->glb0[i]);
}
write_size(world, pos);
}
static void process_OBJ(world, obj)
WORLD *world;
OBJECT *obj;
{
OBJECT *o;
if (obj->extr) process_EXTR(world, obj);
else process_DESC(world, obj);
for (o=obj->child; o; o=o->next)
process_OBJ(world, o);
put_name(world, "TOBJ", 4);
put_ULONG(world, 0L);
}
static void process_EXTR(world, obj)
WORLD *world;
OBJECT *obj;
{
long pos;
put_name(world, "EXTR", 4);
put_ULONG(world, 0L);
pos = ftell(world->inp); /* Save for later */
put_name(world, "LOAD", 4);
put_ULONG(world, 80L);
put_name(world, obj->extr->filename, 80);
put_name(world, "MTRX", 4);
put_ULONG(world, 60L);
put_XYZ(world, &obj->extr->mtrx.tran);
put_XYZ(world, &obj->extr->mtrx.scal);
put_XYZ(world, &obj->extr->mtrx.rota1);
put_XYZ(world, &obj->extr->mtrx.rota2);
put_XYZ(world, &obj->extr->mtrx.rota3);
write_size(world, pos);
}
static void process_DESC(world, obj)
WORLD *world;
OBJECT *obj;
{
register int i, j;
register DESC *desc;
FGRP *fgrp;
long pos;
if (!obj) return;
desc = obj->desc;
if (!desc) return;
put_name(world, "DESC", 4);
put_ULONG(world, 0L);
pos = ftell(world->inp); /* Save for later */
if (desc->name) {
put_name(world, "NAME", 4);
put_ULONG(world, 18L);
put_name(world, desc->name, 18);
}
if (desc->posi) {
put_name(world, "POSI", 4);
put_ULONG(world, 12L);
put_XYZ(world, desc->posi);
}
if (desc->size) {
put_name(world, "SIZE", 4);
put_ULONG(world, 12L);
put_XYZ(world, desc->size);
}
if (desc->colr) {
put_name(world, "COLR", 4);
put_ULONG(world, 4L);
put_RGB(world, desc->colr);
}
if (desc->refl) {
put_name(world, "REFL", 4);
put_ULONG(world, 4L);
put_RGB(world, desc->refl);
}
if (desc->tran) {
put_name(world, "TRAN", 4);
put_ULONG(world, 4L);
put_RGB(world, desc->tran);
}
if (desc->spc1) {
put_name(world, "SPC1", 4);
put_ULONG(world, 4L);
put_RGB(world, desc->spc1);
}
if (desc->ints) {
put_name(world, "INTS", 4);
put_ULONG(world, 4L);
put_FRACT(world, (*desc->ints));
}
/* Mandatory field... stuff it, regardless */
if (desc->shap) {
put_name(world, "SHAP", 4);
put_ULONG(world, 4L);
put_UWORD(world, (UWORD)desc->shap[0]);
put_UWORD(world, (UWORD)desc->shap[1]);
} else {
put_name(world, "SHAP", 4);
put_ULONG(world, 4L);
put_UWORD(world, (UWORD)2);
put_UWORD(world, (UWORD)1);
}
if (desc->axis) {
put_name(world, "AXIS", 4);
put_ULONG(world, 36L);
put_XYZ(world, &desc->axis->xaxi);
put_XYZ(world, &desc->axis->yaxi);
put_XYZ(world, &desc->axis->zaxi);
}
if (desc->tpar) {
put_name(world, "TPAR", 4);
put_ULONG(world, 64L);
for (i=0; i<16; i++) put_FRACT(world, desc->tpar[i]);
}
if (desc->surf) {
put_name(world, "SURF", 4);
put_ULONG(world, 5L);
for (i=0; i<5; i++) put_UBYTE(world, desc->surf[i]);
put_UBYTE(world, (UBYTE)0); /* To make this chunk even-sized */
}
if (desc->mttr) {
put_name(world, "MTTR", 4);
put_ULONG(world, 2L);
put_UBYTE(world, desc->mttr->type);
put_UBYTE(world, (UBYTE)(((int)((desc->mttr->indx-1.0)*100.0))&0xFF));
}
if (desc->spec) {
put_name(world, "SPEC", 4);
put_ULONG(world, 2L);
put_UBYTE(world, desc->spec[0]);
put_UBYTE(world, desc->spec[1]);
}
if (desc->prp0) {
put_name(world, "PRP0", 4);
put_ULONG(world, 6L);
for (i=0; i<6; i++) put_UBYTE(world, desc->prp0[i]);
}
if (desc->prp1) {
put_name(world, "PRP1", 4);
put_ULONG(world, 8L);
for (i=0; i<8; i++) put_UBYTE(world, desc->prp1[i]);
}
if (desc->stry) {
put_name(world, "STRY", 4);
put_ULONG(world, 56L);
put_name(world, desc->stry->path, 18);
put_XYZ(world, &desc->stry->tran);
put_XYZ(world, &desc->stry->rota);
put_XYZ(world, &desc->stry->scal);
put_UWORD(world, desc->stry->info);
}
if (desc->pcount) {
put_name(world, "PNTS", 4);
put_ULONG(world, (ULONG)desc->pcount*12L+2L);
put_UWORD(world, desc->pcount);
for (i=0; i<desc->pcount; i++)
put_XYZ(world, &desc->pnts[i]);
}
if (desc->ecount) {
put_name(world, "EDGE", 4);
put_ULONG(world, (ULONG)desc->ecount*4L+2L);
put_UWORD(world, desc->ecount);
for (i=0; i<2*desc->ecount; i++)
put_UWORD(world, desc->edge[i]);
}
if (desc->eflg) {
put_name(world, "EFLG", 4);
put_ULONG(world, (ULONG)desc->eflg->num+2L);
put_UWORD(world, desc->eflg->num);
for (i=0; i<desc->eflg->num; i++)
put_UBYTE(world, desc->eflg->eflg[i]);
if (desc->eflg->num&1) put_UBYTE(world, 0); /* Pad on even boundary */
}
if (desc->fcount) {
put_name(world, "FACE", 4);
put_ULONG(world, (ULONG)desc->fcount*6L+2L);
put_UWORD(world, desc->fcount);
for (i=0; i<3*desc->fcount; i++)
put_UWORD(world, desc->face[i]);
if (desc->clst) {
put_name(world, "CLST", 4);
put_ULONG(world, (ULONG)desc->fcount*3L+2L);
put_UWORD(world, desc->fcount);
for (i=0; i<3*desc->fcount; i++)
put_UBYTE(world, desc->clst[i]);
if (desc->fcount&1) put_UBYTE(world, 0); /* Pad to even length */
}
if (desc->rlst) {
put_name(world, "RLST", 4);
put_ULONG(world, (ULONG)desc->fcount*3L+2L);
put_UWORD(world, desc->fcount);
for (i=0; i<3*desc->fcount; i++)
put_UBYTE(world, desc->rlst[i]);
if (desc->fcount&1) put_UBYTE(world, 0); /* Pad to even length */
}
if (desc->tlst) {
put_name(world, "TLST", 4);
put_ULONG(world, (ULONG)desc->fcount*3L+2L);
put_UWORD(world, desc->fcount);
for (i=0; i<3*desc->fcount; i++)
put_UBYTE(world, desc->tlst[i]);
if (desc->fcount&1) put_UBYTE(world, 0); /* Pad to even length */
}
}
for (fgrp=desc->fgrp; fgrp; fgrp=fgrp->next) {
put_name(world, "FGRP", 4);
put_ULONG(world, (ULONG)fgrp->num*2L+2L+18L);
put_UWORD(world, fgrp->num);
put_name(world, fgrp->name, 18);
for (i=0; i<fgrp->num; i++)
put_UWORD(world, fgrp->face[i]);
}
for (i=0; i<4; i++) {
if (!desc->txt2[i]) continue;
put_name(world, "TXT2", 4);
j = strlen(desc->txt2[i]->Name);
/* CWC */ j = 144L+17L+j; /* Oddly enough, an odd number is allowed here */
/* CWC put_ULONG(world, 94L+18L+j+(1-(j&1))); original line */
/* CWC */ put_ULONG(world, j);
put_UWORD(world, desc->txt2[i]->Flags);
put_XYZ(world, &desc->txt2[i]->TAxis.tran);
put_XYZ(world, &desc->txt2[i]->TAxis.rota1);
put_XYZ(world, &desc->txt2[i]->TAxis.rota2);
put_XYZ(world, &desc->txt2[i]->TAxis.rota3);
put_XYZ(world, &desc->txt2[i]->TAxis.scal);
for (j = 0; j < 16; j++) put_FRACT(world, desc->txt2[i]->Params[j]);
for (j = 0; j < 16; j++) put_UBYTE(world, desc->txt2[i]->PFlags[j]);
/* CWC put_name(world, desc->txt2[i]->SubName, 18); original line */
/* CWC */ put_name(world, desc->txt2[i]->SubName, 17); /* Yes, this
is correct! */
j = strlen(desc->txt2[i]->Name);
put_UWORD(world, j);
put_name(world, desc->txt2[i]->Name, j);
/* CWC */ j = j + 144L + 17L;
if (j&1) put_UBYTE(world, 0); /* Pad the odd byte */
}
write_size(world, pos);
}
/************************************************************************/
/* New code to write staging file - written by Glenn M. Lewis - 8/11/92 */
/************************************************************************/
static void process_OSIZ();
static void process_POSN();
static void process_ALGN();
static void process_PALN();
static void process_TALN();
static void process_PTH2();
static void process_GLB2();
static void process_AXIS();
static void process_LITE();
static void process_FILE();
static void process_ISTG(world)
WORLD *world;
{
register ISTG *istg = world->istg;
register SOBJ *sobj;
long pos2;
if (!world->inp) return; /* File not open */
put_name(world, "MAXF", 4);
put_ULONG(world, 2L);
put_UWORD(world, istg->maxf);
/* Sort the SOBJ's first? */
/* Here is the main loop: */
for (sobj=istg->head; sobj; sobj=sobj->next) {
put_name(world, "SOBJ", 4);
put_ULONG(world, 0L);
pos2 = ftell(world->inp); /* Save for later */
put_name(world, "NAME", 4);
put_ULONG(world, 18L);
put_name(world, sobj->name, 18);
put_name(world, "STGF", 4);
put_ULONG(world, 2L);
put_UWORD(world, sobj->stgf);
if (sobj->glb2) process_GLB2(sobj, world);
if (sobj->file) process_FILE(sobj, world);
if (sobj->lite) process_LITE(sobj, world);
if (sobj->axis) process_AXIS(sobj, world);
if (sobj->posn) process_POSN(sobj, world);
if (sobj->algn) process_ALGN(sobj, world);
if (sobj->osiz) process_OSIZ(sobj, world);
if (sobj->paln) process_PALN(sobj, world);
if (sobj->taln) process_TALN(sobj, world);
if (sobj->pth2) process_PTH2(sobj, world);
write_size(world, pos2);
}
/* All done. */
}
static void process_OSIZ(sobj, world)
SOBJ *sobj;
WORLD *world;
{
register OSIZ *osiz;
for (osiz=sobj->osiz; osiz; osiz=osiz->next) {
put_name(world, "OSIZ", 4);
put_ULONG(world, 18L);
put_UWORD(world, osiz->flags);
put_UWORD(world, osiz->start);
put_UWORD(world, osiz->stop);
put_XYZ(world, &osiz->size);
}
}
static void process_POSN(sobj, world)
SOBJ *sobj;
WORLD *world;
{
register POSN *posn;
for (posn=sobj->posn; posn; posn=posn->next) {
put_name(world, "POSN", 4);
put_ULONG(world, 18L);
put_UWORD(world, posn->flags);
put_UWORD(world, posn->start);
put_UWORD(world, posn->stop);
put_XYZ(world, &posn->posn);
}
}
static void process_ALGN(sobj, world)
SOBJ *sobj;
WORLD *world;
{
register ALGN *algn;
for (algn=sobj->algn; algn; algn=algn->next) {
put_name(world, "ALGN", 4);
put_ULONG(world, 18L);
put_UWORD(world, algn->flags);
put_UWORD(world, algn->start);
put_UWORD(world, algn->stop);
put_XYZ(world, &algn->algn);
}
}
static void process_PALN(sobj, world)
SOBJ *sobj;
WORLD *world;
{
register PALN *paln;
for (paln=sobj->paln; paln; paln=paln->next) {
put_name(world, "PALN", 4);
put_ULONG(world, 6L);
put_UWORD(world, paln->flags);
put_UWORD(world, paln->start);
put_UWORD(world, paln->stop);
}
}
static void process_TALN(sobj, world)
SOBJ *sobj;
WORLD *world;
{
register TALN *taln;
int len;
for (taln=sobj->taln; taln; taln=taln->next) {
len = strlen(taln->trackobj);
put_name(world, "TALN", 4);
put_ULONG(world, (ULONG)16L+(long)len);
put_UWORD(world, taln->flags);
put_UWORD(world, taln->start);
put_UWORD(world, taln->stop);
put_FRACT(world, taln->initial_y);
put_FRACT(world, taln->final_y);
/* BCPL string... byte (length) followed by string, then zero */
put_UBYTE(world, (UBYTE)len);
put_name(world, taln->trackobj, len);
put_UBYTE(world, 0);
if (len&1) put_UBYTE(world, 0); /* pad byte */
}
}
static void process_PTH2(sobj, world)
SOBJ *sobj;
WORLD *world;
{
register PTH2 *pth2;
int len;
for (pth2=sobj->pth2; pth2; pth2=pth2->next) {
len = strlen(pth2->path);
put_name(world, "PTH2", 4);
put_ULONG(world, (ULONG)24L+len);
put_UWORD(world, pth2->flags);
put_UWORD(world, pth2->start);
put_UWORD(world, pth2->stop);
put_ULONG(world, pth2->acceleration_frames);
put_FRACT(world, pth2->start_speed);
put_ULONG(world, pth2->deacceleration_frames);
put_FRACT(world, pth2->end_speed);
/* BCPL string... byte (length) followed by string, then zero */
put_UBYTE(world, (UBYTE)len);
put_name(world, pth2->path, len);
put_UBYTE(world, 0);
if (len&1) put_UBYTE(world, 0); /* pad byte */
}
}
static void process_GLB2(sobj, world)
SOBJ *sobj;
WORLD *world;
{
register GLB2 *glb2;
int len;
for (glb2=sobj->glb2; glb2; glb2=glb2->next) {
len = strlen(glb2->globalbrush);
put_name(world, "GLB2", 4);
put_ULONG(world, (ULONG)356L+len);
put_UWORD(world, glb2->flags);
put_UWORD(world, glb2->start);
put_UWORD(world, glb2->stop);
put_ULONG(world, glb2->sky_blending);
put_FRACT(world, glb2->starfield);
put_ULONG(world, glb2->transition);
/* These colors are stored as FRACTs */
put_XYZ(world, &glb2->ambient);
put_XYZ(world, &glb2->horizon);
put_XYZ(world, &glb2->zenith1);
put_XYZ(world, &glb2->zenith2);
put_XYZ(world, &glb2->fog_color);
put_FRACT(world, glb2->fog_bottom);
put_FRACT(world, glb2->fog_top);
put_FRACT(world, glb2->fog_length);
put_ULONG(world, glb2->brush_seq);
put_ULONG(world, glb2->backdrop_seq);
put_name(world, glb2->backdrop, 256); /* Fixed size */
/* BCPL string... byte (length) followed by string, then zero */
put_UBYTE(world, (UBYTE)len);
put_name(world, glb2->globalbrush, len); /* Var. size */
put_UBYTE(world, 0);
if (len&1) put_UBYTE(world, 0); /* pad byte */
}
}
static void process_AXIS(sobj, world)
SOBJ *sobj;
WORLD *world;
{
register SAXIS *axis;
for (axis=sobj->axis; axis; axis=axis->next) {
put_name(world, "AXIS", 4);
put_ULONG(world, 6L);
put_UWORD(world, axis->flags);
put_UWORD(world, axis->start);
put_UWORD(world, axis->stop);
}
}
static void process_LITE(sobj, world)
SOBJ *sobj;
WORLD *world;
{
register LITE *lite;
for (lite=sobj->lite; lite; lite=lite->next) {
put_name(world, "LITE", 4);
put_ULONG(world, 22L);
put_UWORD(world, lite->flags);
put_UWORD(world, lite->start);
put_UWORD(world, lite->stop);
/* This color is stored as a FRACT */
put_XYZ(world, &lite->color);
put_ULONG(world, lite->transition);
}
}
static void process_FILE(sobj, world)
SOBJ *sobj;
WORLD *world;
{
register SFILE *file;
int len;
for (file=sobj->file; file; file=file->next) {
len = strlen(file->object_description);
put_name(world, "FILE", 4);
put_ULONG(world, (ULONG)20L+len-(len&1));
put_UWORD(world, file->flags);
put_UWORD(world, file->start);
put_UWORD(world, file->stop);
put_FRACT(world, file->cycles_to_perform);
put_FRACT(world, file->initial_cycle_phase);
put_ULONG(world, file->transition);
/* BCPL string... byte (length) followed by string */
put_UBYTE(world, (UBYTE)len);
put_name(world, file->object_description, len);
if (!(len&1)) put_UBYTE(world, 0); /* pad byte */
}
}