/*
-======================================================================
-lwob.c
+ ======================================================================
+ lwob.c
-Functions for an LWOB reader. LWOB is the LightWave object format
-for versions of LW prior to 6.0.
+ Functions for an LWOB reader. LWOB is the LightWave object format
+ for versions of LW prior to 6.0.
-Ernie Wright 17 Sep 00
-====================================================================== */
+ Ernie Wright 17 Sep 00
+ ====================================================================== */
#include "../picointernal.h"
#include "lwo2.h"
/* IDs specific to LWOB */
-#define ID_SRFS LWID_('S','R','F','S')
-#define ID_FLAG LWID_('F','L','A','G')
-#define ID_VLUM LWID_('V','L','U','M')
-#define ID_VDIF LWID_('V','D','I','F')
-#define ID_VSPC LWID_('V','S','P','C')
-#define ID_RFLT LWID_('R','F','L','T')
-#define ID_BTEX LWID_('B','T','E','X')
-#define ID_CTEX LWID_('C','T','E','X')
-#define ID_DTEX LWID_('D','T','E','X')
-#define ID_LTEX LWID_('L','T','E','X')
-#define ID_RTEX LWID_('R','T','E','X')
-#define ID_STEX LWID_('S','T','E','X')
-#define ID_TTEX LWID_('T','T','E','X')
-#define ID_TFLG LWID_('T','F','L','G')
-#define ID_TSIZ LWID_('T','S','I','Z')
-#define ID_TCTR LWID_('T','C','T','R')
-#define ID_TFAL LWID_('T','F','A','L')
-#define ID_TVEL LWID_('T','V','E','L')
-#define ID_TCLR LWID_('T','C','L','R')
-#define ID_TVAL LWID_('T','V','A','L')
-#define ID_TAMP LWID_('T','A','M','P')
-#define ID_TIMG LWID_('T','I','M','G')
-#define ID_TAAS LWID_('T','A','A','S')
-#define ID_TREF LWID_('T','R','E','F')
-#define ID_TOPC LWID_('T','O','P','C')
-#define ID_SDAT LWID_('S','D','A','T')
-#define ID_TFP0 LWID_('T','F','P','0')
-#define ID_TFP1 LWID_('T','F','P','1')
+#define ID_SRFS LWID_( 'S','R','F','S' )
+#define ID_FLAG LWID_( 'F','L','A','G' )
+#define ID_VLUM LWID_( 'V','L','U','M' )
+#define ID_VDIF LWID_( 'V','D','I','F' )
+#define ID_VSPC LWID_( 'V','S','P','C' )
+#define ID_RFLT LWID_( 'R','F','L','T' )
+#define ID_BTEX LWID_( 'B','T','E','X' )
+#define ID_CTEX LWID_( 'C','T','E','X' )
+#define ID_DTEX LWID_( 'D','T','E','X' )
+#define ID_LTEX LWID_( 'L','T','E','X' )
+#define ID_RTEX LWID_( 'R','T','E','X' )
+#define ID_STEX LWID_( 'S','T','E','X' )
+#define ID_TTEX LWID_( 'T','T','E','X' )
+#define ID_TFLG LWID_( 'T','F','L','G' )
+#define ID_TSIZ LWID_( 'T','S','I','Z' )
+#define ID_TCTR LWID_( 'T','C','T','R' )
+#define ID_TFAL LWID_( 'T','F','A','L' )
+#define ID_TVEL LWID_( 'T','V','E','L' )
+#define ID_TCLR LWID_( 'T','C','L','R' )
+#define ID_TVAL LWID_( 'T','V','A','L' )
+#define ID_TAMP LWID_( 'T','A','M','P' )
+#define ID_TIMG LWID_( 'T','I','M','G' )
+#define ID_TAAS LWID_( 'T','A','A','S' )
+#define ID_TREF LWID_( 'T','R','E','F' )
+#define ID_TOPC LWID_( 'T','O','P','C' )
+#define ID_SDAT LWID_( 'S','D','A','T' )
+#define ID_TFP0 LWID_( 'T','F','P','0' )
+#define ID_TFP1 LWID_( 'T','F','P','1' )
/*
-======================================================================
-add_clip()
-
-Add a clip to the clip list. Used to store the contents of an RIMG or
-TIMG surface subchunk.
-====================================================================== */
-
-static int add_clip( char *s, lwClip **clist, int *nclips )
-{
- lwClip *clip;
- char *p;
-
- clip = _pico_calloc( 1, sizeof( lwClip ));
- if ( !clip ) return 0;
-
- clip->contrast.val = 1.0f;
- clip->brightness.val = 1.0f;
- clip->saturation.val = 1.0f;
- clip->gamma.val = 1.0f;
-
- if ((p = strstr( s, "(sequence)" ))) {
- p[ -1 ] = 0;
- clip->type = ID_ISEQ;
- clip->source.seq.prefix = s;
- clip->source.seq.digits = 3;
- }
- else {
- clip->type = ID_STIL;
- clip->source.still.name = s;
- }
-
- (*nclips)++;
- clip->index = *nclips;
-
- lwListAdd( (void *) clist, clip );
-
- return clip->index;
+ ======================================================================
+ add_clip()
+
+ Add a clip to the clip list. Used to store the contents of an RIMG or
+ TIMG surface subchunk.
+ ====================================================================== */
+
+static int add_clip( char *s, lwClip **clist, int *nclips ){
+ lwClip *clip;
+ char *p;
+
+ clip = _pico_calloc( 1, sizeof( lwClip ) );
+ if ( !clip ) {
+ return 0;
+ }
+
+ clip->contrast.val = 1.0f;
+ clip->brightness.val = 1.0f;
+ clip->saturation.val = 1.0f;
+ clip->gamma.val = 1.0f;
+
+ if ( ( p = strstr( s, "(sequence)" ) ) ) {
+ p[ -1 ] = 0;
+ clip->type = ID_ISEQ;
+ clip->source.seq.prefix = s;
+ clip->source.seq.digits = 3;
+ }
+ else {
+ clip->type = ID_STIL;
+ clip->source.still.name = s;
+ }
+
+ ( *nclips )++;
+ clip->index = *nclips;
+
+ lwListAdd( (void *) clist, clip );
+
+ return clip->index;
}
/*
-======================================================================
-add_tvel()
-
-Add a triple of envelopes to simulate the old texture velocity
-parameters.
-====================================================================== */
-
-static int add_tvel( float pos[], float vel[], lwEnvelope **elist, int *nenvs )
-{
- lwEnvelope *env;
- lwKey *key0, *key1;
- int i;
-
- for ( i = 0; i < 3; i++ ) {
- env = _pico_calloc( 1, sizeof( lwEnvelope ));
- key0 = _pico_calloc( 1, sizeof( lwKey ));
- key1 = _pico_calloc( 1, sizeof( lwKey ));
- if ( !env || !key0 || !key1 ) return 0;
-
- key0->next = key1;
- key0->value = pos[ i ];
- key0->time = 0.0f;
- key1->prev = key0;
- key1->value = pos[ i ] + vel[ i ] * 30.0f;
- key1->time = 1.0f;
- key0->shape = key1->shape = ID_LINE;
-
- env->index = *nenvs + i + 1;
- env->type = 0x0301 + i;
- env->name = _pico_alloc( 11 );
- if ( env->name ) {
- strcpy( env->name, "Position.X" );
- env->name[ 9 ] += i;
- }
- env->key = key0;
- env->nkeys = 2;
- env->behavior[ 0 ] = BEH_LINEAR;
- env->behavior[ 1 ] = BEH_LINEAR;
-
- lwListAdd( (void *) elist, env );
- }
-
- *nenvs += 3;
- return env->index - 2;
+ ======================================================================
+ add_tvel()
+
+ Add a triple of envelopes to simulate the old texture velocity
+ parameters.
+ ====================================================================== */
+
+static int add_tvel( float pos[], float vel[], lwEnvelope **elist, int *nenvs ){
+ lwEnvelope *env;
+ lwKey *key0, *key1;
+ int i;
+
+ for ( i = 0; i < 3; i++ ) {
+ env = _pico_calloc( 1, sizeof( lwEnvelope ) );
+ key0 = _pico_calloc( 1, sizeof( lwKey ) );
+ key1 = _pico_calloc( 1, sizeof( lwKey ) );
+ if ( !env || !key0 || !key1 ) {
+ return 0;
+ }
+
+ key0->next = key1;
+ key0->value = pos[ i ];
+ key0->time = 0.0f;
+ key1->prev = key0;
+ key1->value = pos[ i ] + vel[ i ] * 30.0f;
+ key1->time = 1.0f;
+ key0->shape = key1->shape = ID_LINE;
+
+ env->index = *nenvs + i + 1;
+ env->type = 0x0301 + i;
+ env->name = _pico_alloc( 11 );
+ if ( env->name ) {
+ strcpy( env->name, "Position.X" );
+ env->name[ 9 ] += i;
+ }
+ env->key = key0;
+ env->nkeys = 2;
+ env->behavior[ 0 ] = BEH_LINEAR;
+ env->behavior[ 1 ] = BEH_LINEAR;
+
+ lwListAdd( (void *) elist, env );
+ }
+
+ *nenvs += 3;
+ return env->index - 2;
}
/*
-======================================================================
-get_texture()
-
-Create a new texture for BTEX, CTEX, etc. subchunks.
-====================================================================== */
-
-static lwTexture *get_texture( char *s )
-{
- lwTexture *tex;
-
- tex = _pico_calloc( 1, sizeof( lwTexture ));
- if ( !tex ) return NULL;
-
- tex->tmap.size.val[ 0 ] =
- tex->tmap.size.val[ 1 ] =
- tex->tmap.size.val[ 2 ] = 1.0f;
- tex->opacity.val = 1.0f;
- tex->enabled = 1;
-
- if ( strstr( s, "Image Map" )) {
- tex->type = ID_IMAP;
- if ( strstr( s, "Planar" )) tex->param.imap.projection = 0;
- else if ( strstr( s, "Cylindrical" )) tex->param.imap.projection = 1;
- else if ( strstr( s, "Spherical" )) tex->param.imap.projection = 2;
- else if ( strstr( s, "Cubic" )) tex->param.imap.projection = 3;
- else if ( strstr( s, "Front" )) tex->param.imap.projection = 4;
- tex->param.imap.aa_strength = 1.0f;
- tex->param.imap.amplitude.val = 1.0f;
- _pico_free( s );
- }
- else {
- tex->type = ID_PROC;
- tex->param.proc.name = s;
- }
-
- return tex;
+ ======================================================================
+ get_texture()
+
+ Create a new texture for BTEX, CTEX, etc. subchunks.
+ ====================================================================== */
+
+static lwTexture *get_texture( char *s ){
+ lwTexture *tex;
+
+ tex = _pico_calloc( 1, sizeof( lwTexture ) );
+ if ( !tex ) {
+ return NULL;
+ }
+
+ tex->tmap.size.val[ 0 ] =
+ tex->tmap.size.val[ 1 ] =
+ tex->tmap.size.val[ 2 ] = 1.0f;
+ tex->opacity.val = 1.0f;
+ tex->enabled = 1;
+
+ if ( strstr( s, "Image Map" ) ) {
+ tex->type = ID_IMAP;
+ if ( strstr( s, "Planar" ) ) {
+ tex->param.imap.projection = 0;
+ }
+ else if ( strstr( s, "Cylindrical" ) ) {
+ tex->param.imap.projection = 1;
+ }
+ else if ( strstr( s, "Spherical" ) ) {
+ tex->param.imap.projection = 2;
+ }
+ else if ( strstr( s, "Cubic" ) ) {
+ tex->param.imap.projection = 3;
+ }
+ else if ( strstr( s, "Front" ) ) {
+ tex->param.imap.projection = 4;
+ }
+ tex->param.imap.aa_strength = 1.0f;
+ tex->param.imap.amplitude.val = 1.0f;
+ _pico_free( s );
+ }
+ else {
+ tex->type = ID_PROC;
+ tex->param.proc.name = s;
+ }
+
+ return tex;
}
/*
-======================================================================
-lwGetSurface5()
-
-Read an lwSurface from an LWOB file.
-====================================================================== */
-
-lwSurface *lwGetSurface5( picoMemStream_t *fp, int cksize, lwObject *obj )
-{
- lwSurface *surf;
- lwTexture *tex = NULL;
- lwPlugin *shdr = NULL;
- char *s;
- float v[ 3 ];
- unsigned int id, flags;
- unsigned short sz;
- int pos, rlen, i;
-
-
- /* allocate the Surface structure */
-
- surf = _pico_calloc( 1, sizeof( lwSurface ));
- if ( !surf ) goto Fail;
-
- /* non-zero defaults */
-
- surf->color.rgb[ 0 ] = 0.78431f;
- surf->color.rgb[ 1 ] = 0.78431f;
- surf->color.rgb[ 2 ] = 0.78431f;
- surf->diffuse.val = 1.0f;
- surf->glossiness.val = 0.4f;
- surf->bump.val = 1.0f;
- surf->eta.val = 1.0f;
- surf->sideflags = 1;
-
- /* remember where we started */
-
- set_flen( 0 );
- pos = _pico_memstream_tell( fp );
-
- /* name */
-
- surf->name = getS0( fp );
-
- /* first subchunk header */
-
- id = getU4( fp );
- sz = getU2( fp );
- if ( 0 > get_flen() ) goto Fail;
-
- /* process subchunks as they're encountered */
-
- while ( 1 ) {
- sz += sz & 1;
- set_flen( 0 );
-
- switch ( id ) {
- case ID_COLR:
- surf->color.rgb[ 0 ] = getU1( fp ) / 255.0f;
- surf->color.rgb[ 1 ] = getU1( fp ) / 255.0f;
- surf->color.rgb[ 2 ] = getU1( fp ) / 255.0f;
- break;
-
- case ID_FLAG:
- flags = getU2( fp );
- if ( flags & 4 ) surf->smooth = 1.56207f;
- if ( flags & 8 ) surf->color_hilite.val = 1.0f;
- if ( flags & 16 ) surf->color_filter.val = 1.0f;
- if ( flags & 128 ) surf->dif_sharp.val = 0.5f;
- if ( flags & 256 ) surf->sideflags = 3;
- if ( flags & 512 ) surf->add_trans.val = 1.0f;
- break;
-
- case ID_LUMI:
- surf->luminosity.val = getI2( fp ) / 256.0f;
- break;
-
- case ID_VLUM:
- surf->luminosity.val = getF4( fp );
- break;
-
- case ID_DIFF:
- surf->diffuse.val = getI2( fp ) / 256.0f;
- break;
-
- case ID_VDIF:
- surf->diffuse.val = getF4( fp );
- break;
-
- case ID_SPEC:
- surf->specularity.val = getI2( fp ) / 256.0f;
- break;
-
- case ID_VSPC:
- surf->specularity.val = getF4( fp );
- break;
-
- case ID_GLOS:
- surf->glossiness.val = ( float ) log( getU2( fp )) / 20.7944f;
- break;
-
- case ID_SMAN:
- surf->smooth = getF4( fp );
- break;
-
- case ID_REFL:
- surf->reflection.val.val = getI2( fp ) / 256.0f;
- break;
-
- case ID_RFLT:
- surf->reflection.options = getU2( fp );
- break;
-
- case ID_RIMG:
- s = getS0( fp );
- surf->reflection.cindex = add_clip( s, &obj->clip, &obj->nclips );
- surf->reflection.options = 3;
- break;
-
- case ID_RSAN:
- surf->reflection.seam_angle = getF4( fp );
- break;
-
- case ID_TRAN:
- surf->transparency.val.val = getI2( fp ) / 256.0f;
- break;
-
- case ID_RIND:
- surf->eta.val = getF4( fp );
- break;
-
- case ID_BTEX:
- s = getbytes( fp, sz );
- tex = get_texture( s );
- lwListAdd( (void *) &surf->bump.tex, tex );
- break;
-
- case ID_CTEX:
- s = getbytes( fp, sz );
- tex = get_texture( s );
- lwListAdd( (void *) &surf->color.tex, tex );
- break;
-
- case ID_DTEX:
- s = getbytes( fp, sz );
- tex = get_texture( s );
- lwListAdd( (void *) &surf->diffuse.tex, tex );
- break;
-
- case ID_LTEX:
- s = getbytes( fp, sz );
- tex = get_texture( s );
- lwListAdd( (void *) &surf->luminosity.tex, tex );
- break;
-
- case ID_RTEX:
- s = getbytes( fp, sz );
- tex = get_texture( s );
- lwListAdd( (void *) &surf->reflection.val.tex, tex );
- break;
-
- case ID_STEX:
- s = getbytes( fp, sz );
- tex = get_texture( s );
- lwListAdd( (void *) &surf->specularity.tex, tex );
- break;
-
- case ID_TTEX:
- s = getbytes( fp, sz );
- tex = get_texture( s );
- lwListAdd( (void *) &surf->transparency.val.tex, tex );
- break;
-
- case ID_TFLG:
- if(!tex) goto Fail;
- flags = getU2( fp );
-
- i = -1;
- if ( flags & 1 ) i = 0;
- if ( flags & 2 ) i = 1;
- if ( flags & 4 ) i = 2;
- if(i < 0) goto Fail;
- tex->axis = i;
- if ( tex->type == ID_IMAP )
- tex->param.imap.axis = i;
- else
- tex->param.proc.axis = i;
-
- if ( flags & 8 ) tex->tmap.coord_sys = 1;
- if ( flags & 16 ) tex->negative = 1;
- if ( flags & 32 ) tex->param.imap.pblend = 1;
- if ( flags & 64 ) {
- tex->param.imap.aa_strength = 1.0f;
- tex->param.imap.aas_flags = 1;
- }
- break;
-
- case ID_TSIZ:
- if(!tex) goto Fail;
- for ( i = 0; i < 3; i++ )
- tex->tmap.size.val[ i ] = getF4( fp );
- break;
-
- case ID_TCTR:
- if(!tex) goto Fail;
- for ( i = 0; i < 3; i++ )
- tex->tmap.center.val[ i ] = getF4( fp );
- break;
-
- case ID_TFAL:
- if(!tex) goto Fail;
- for ( i = 0; i < 3; i++ )
- tex->tmap.falloff.val[ i ] = getF4( fp );
- break;
-
- case ID_TVEL:
- if(!tex) goto Fail;
- for ( i = 0; i < 3; i++ )
- v[ i ] = getF4( fp );
- tex->tmap.center.eindex = add_tvel( tex->tmap.center.val, v,
- &obj->env, &obj->nenvs );
- break;
-
- case ID_TCLR:
- if(!tex) goto Fail;
- if ( tex->type == ID_PROC )
- for ( i = 0; i < 3; i++ )
- tex->param.proc.value[ i ] = getU1( fp ) / 255.0f;
- break;
-
- case ID_TVAL:
- if(!tex) goto Fail;
- tex->param.proc.value[ 0 ] = getI2( fp ) / 256.0f;
- break;
-
- case ID_TAMP:
- if(!tex) goto Fail;
- if ( tex->type == ID_IMAP )
- tex->param.imap.amplitude.val = getF4( fp );
- break;
-
- case ID_TIMG:
- if(!tex) goto Fail;
- s = getS0( fp );
- tex->param.imap.cindex = add_clip( s, &obj->clip, &obj->nclips );
- break;
-
- case ID_TAAS:
- if(!tex) goto Fail;
- tex->param.imap.aa_strength = getF4( fp );
- tex->param.imap.aas_flags = 1;
- break;
-
- case ID_TREF:
- if(!tex) goto Fail;
- tex->tmap.ref_object = getbytes( fp, sz );
- break;
-
- case ID_TOPC:
- if(!tex) goto Fail;
- tex->opacity.val = getF4( fp );
- break;
-
- case ID_TFP0:
- if(!tex) goto Fail;
- if ( tex->type == ID_IMAP )
- tex->param.imap.wrapw.val = getF4( fp );
- break;
-
- case ID_TFP1:
- if(!tex) goto Fail;
- if ( tex->type == ID_IMAP )
- tex->param.imap.wraph.val = getF4( fp );
- break;
-
- case ID_SHDR:
- shdr = _pico_calloc( 1, sizeof( lwPlugin ));
- if ( !shdr ) goto Fail;
- shdr->name = getbytes( fp, sz );
- lwListAdd( (void *) &surf->shader, shdr );
- surf->nshaders++;
- break;
-
- case ID_SDAT:
- if(!shdr) goto Fail;
- shdr->data = getbytes( fp, sz );
- break;
-
- default:
- break;
- }
-
- /* error while reading current subchunk? */
-
- rlen = get_flen();
- if ( rlen < 0 || rlen > sz ) goto Fail;
-
- /* skip unread parts of the current subchunk */
-
- if ( rlen < sz )
- _pico_memstream_seek( fp, sz - rlen, PICO_SEEK_CUR );
-
- /* end of the SURF chunk? */
-
- if ( cksize <= _pico_memstream_tell( fp ) - pos )
- break;
-
- /* get the next subchunk header */
-
- set_flen( 0 );
- id = getU4( fp );
- sz = getU2( fp );
- if ( 6 != get_flen() ) goto Fail;
- }
-
- return surf;
+ ======================================================================
+ lwGetSurface5()
+
+ Read an lwSurface from an LWOB file.
+ ====================================================================== */
+
+lwSurface *lwGetSurface5( picoMemStream_t *fp, int cksize, lwObject *obj ){
+ lwSurface *surf;
+ lwTexture *tex = NULL;
+ lwPlugin *shdr = NULL;
+ char *s;
+ float v[ 3 ];
+ unsigned int id, flags;
+ unsigned short sz;
+ int pos, rlen, i;
+
+
+ /* allocate the Surface structure */
+
+ surf = _pico_calloc( 1, sizeof( lwSurface ) );
+ if ( !surf ) {
+ goto Fail;
+ }
+
+ /* non-zero defaults */
+
+ surf->color.rgb[ 0 ] = 0.78431f;
+ surf->color.rgb[ 1 ] = 0.78431f;
+ surf->color.rgb[ 2 ] = 0.78431f;
+ surf->diffuse.val = 1.0f;
+ surf->glossiness.val = 0.4f;
+ surf->bump.val = 1.0f;
+ surf->eta.val = 1.0f;
+ surf->sideflags = 1;
+
+ /* remember where we started */
+
+ set_flen( 0 );
+ pos = _pico_memstream_tell( fp );
+
+ /* name */
+
+ surf->name = getS0( fp );
+
+ /* first subchunk header */
+
+ id = getU4( fp );
+ sz = getU2( fp );
+ if ( 0 > get_flen() ) {
+ goto Fail;
+ }
+
+ /* process subchunks as they're encountered */
+
+ while ( 1 ) {
+ sz += sz & 1;
+ set_flen( 0 );
+
+ switch ( id ) {
+ case ID_COLR:
+ surf->color.rgb[ 0 ] = getU1( fp ) / 255.0f;
+ surf->color.rgb[ 1 ] = getU1( fp ) / 255.0f;
+ surf->color.rgb[ 2 ] = getU1( fp ) / 255.0f;
+ break;
+
+ case ID_FLAG:
+ flags = getU2( fp );
+ if ( flags & 4 ) {
+ surf->smooth = 1.56207f;
+ }
+ if ( flags & 8 ) {
+ surf->color_hilite.val = 1.0f;
+ }
+ if ( flags & 16 ) {
+ surf->color_filter.val = 1.0f;
+ }
+ if ( flags & 128 ) {
+ surf->dif_sharp.val = 0.5f;
+ }
+ if ( flags & 256 ) {
+ surf->sideflags = 3;
+ }
+ if ( flags & 512 ) {
+ surf->add_trans.val = 1.0f;
+ }
+ break;
+
+ case ID_LUMI:
+ surf->luminosity.val = getI2( fp ) / 256.0f;
+ break;
+
+ case ID_VLUM:
+ surf->luminosity.val = getF4( fp );
+ break;
+
+ case ID_DIFF:
+ surf->diffuse.val = getI2( fp ) / 256.0f;
+ break;
+
+ case ID_VDIF:
+ surf->diffuse.val = getF4( fp );
+ break;
+
+ case ID_SPEC:
+ surf->specularity.val = getI2( fp ) / 256.0f;
+ break;
+
+ case ID_VSPC:
+ surf->specularity.val = getF4( fp );
+ break;
+
+ case ID_GLOS:
+ surf->glossiness.val = ( float ) log( getU2( fp ) ) / 20.7944f;
+ break;
+
+ case ID_SMAN:
+ surf->smooth = getF4( fp );
+ break;
+
+ case ID_REFL:
+ surf->reflection.val.val = getI2( fp ) / 256.0f;
+ break;
+
+ case ID_RFLT:
+ surf->reflection.options = getU2( fp );
+ break;
+
+ case ID_RIMG:
+ s = getS0( fp );
+ surf->reflection.cindex = add_clip( s, &obj->clip, &obj->nclips );
+ surf->reflection.options = 3;
+ break;
+
+ case ID_RSAN:
+ surf->reflection.seam_angle = getF4( fp );
+ break;
+
+ case ID_TRAN:
+ surf->transparency.val.val = getI2( fp ) / 256.0f;
+ break;
+
+ case ID_RIND:
+ surf->eta.val = getF4( fp );
+ break;
+
+ case ID_BTEX:
+ s = getbytes( fp, sz );
+ tex = get_texture( s );
+ lwListAdd( (void *) &surf->bump.tex, tex );
+ break;
+
+ case ID_CTEX:
+ s = getbytes( fp, sz );
+ tex = get_texture( s );
+ lwListAdd( (void *) &surf->color.tex, tex );
+ break;
+
+ case ID_DTEX:
+ s = getbytes( fp, sz );
+ tex = get_texture( s );
+ lwListAdd( (void *) &surf->diffuse.tex, tex );
+ break;
+
+ case ID_LTEX:
+ s = getbytes( fp, sz );
+ tex = get_texture( s );
+ lwListAdd( (void *) &surf->luminosity.tex, tex );
+ break;
+
+ case ID_RTEX:
+ s = getbytes( fp, sz );
+ tex = get_texture( s );
+ lwListAdd( (void *) &surf->reflection.val.tex, tex );
+ break;
+
+ case ID_STEX:
+ s = getbytes( fp, sz );
+ tex = get_texture( s );
+ lwListAdd( (void *) &surf->specularity.tex, tex );
+ break;
+
+ case ID_TTEX:
+ s = getbytes( fp, sz );
+ tex = get_texture( s );
+ lwListAdd( (void *) &surf->transparency.val.tex, tex );
+ break;
+
+ case ID_TFLG:
+ if ( !tex ) {
+ goto Fail;
+ }
+ flags = getU2( fp );
+
+ i = -1;
+ if ( flags & 1 ) {
+ i = 0;
+ }
+ if ( flags & 2 ) {
+ i = 1;
+ }
+ if ( flags & 4 ) {
+ i = 2;
+ }
+ if ( i < 0 ) {
+ goto Fail;
+ }
+ tex->axis = i;
+ if ( tex->type == ID_IMAP ) {
+ tex->param.imap.axis = i;
+ }
+ else{
+ tex->param.proc.axis = i;
+ }
+
+ if ( flags & 8 ) {
+ tex->tmap.coord_sys = 1;
+ }
+ if ( flags & 16 ) {
+ tex->negative = 1;
+ }
+ if ( flags & 32 ) {
+ tex->param.imap.pblend = 1;
+ }
+ if ( flags & 64 ) {
+ tex->param.imap.aa_strength = 1.0f;
+ tex->param.imap.aas_flags = 1;
+ }
+ break;
+
+ case ID_TSIZ:
+ if ( !tex ) {
+ goto Fail;
+ }
+ for ( i = 0; i < 3; i++ )
+ tex->tmap.size.val[ i ] = getF4( fp );
+ break;
+
+ case ID_TCTR:
+ if ( !tex ) {
+ goto Fail;
+ }
+ for ( i = 0; i < 3; i++ )
+ tex->tmap.center.val[ i ] = getF4( fp );
+ break;
+
+ case ID_TFAL:
+ if ( !tex ) {
+ goto Fail;
+ }
+ for ( i = 0; i < 3; i++ )
+ tex->tmap.falloff.val[ i ] = getF4( fp );
+ break;
+
+ case ID_TVEL:
+ if ( !tex ) {
+ goto Fail;
+ }
+ for ( i = 0; i < 3; i++ )
+ v[ i ] = getF4( fp );
+ tex->tmap.center.eindex = add_tvel( tex->tmap.center.val, v,
+ &obj->env, &obj->nenvs );
+ break;
+
+ case ID_TCLR:
+ if ( !tex ) {
+ goto Fail;
+ }
+ if ( tex->type == ID_PROC ) {
+ for ( i = 0; i < 3; i++ )
+ tex->param.proc.value[ i ] = getU1( fp ) / 255.0f;
+ }
+ break;
+
+ case ID_TVAL:
+ if ( !tex ) {
+ goto Fail;
+ }
+ tex->param.proc.value[ 0 ] = getI2( fp ) / 256.0f;
+ break;
+
+ case ID_TAMP:
+ if ( !tex ) {
+ goto Fail;
+ }
+ if ( tex->type == ID_IMAP ) {
+ tex->param.imap.amplitude.val = getF4( fp );
+ }
+ break;
+
+ case ID_TIMG:
+ if ( !tex ) {
+ goto Fail;
+ }
+ s = getS0( fp );
+ tex->param.imap.cindex = add_clip( s, &obj->clip, &obj->nclips );
+ break;
+
+ case ID_TAAS:
+ if ( !tex ) {
+ goto Fail;
+ }
+ tex->param.imap.aa_strength = getF4( fp );
+ tex->param.imap.aas_flags = 1;
+ break;
+
+ case ID_TREF:
+ if ( !tex ) {
+ goto Fail;
+ }
+ tex->tmap.ref_object = getbytes( fp, sz );
+ break;
+
+ case ID_TOPC:
+ if ( !tex ) {
+ goto Fail;
+ }
+ tex->opacity.val = getF4( fp );
+ break;
+
+ case ID_TFP0:
+ if ( !tex ) {
+ goto Fail;
+ }
+ if ( tex->type == ID_IMAP ) {
+ tex->param.imap.wrapw.val = getF4( fp );
+ }
+ break;
+
+ case ID_TFP1:
+ if ( !tex ) {
+ goto Fail;
+ }
+ if ( tex->type == ID_IMAP ) {
+ tex->param.imap.wraph.val = getF4( fp );
+ }
+ break;
+
+ case ID_SHDR:
+ shdr = _pico_calloc( 1, sizeof( lwPlugin ) );
+ if ( !shdr ) {
+ goto Fail;
+ }
+ shdr->name = getbytes( fp, sz );
+ lwListAdd( (void *) &surf->shader, shdr );
+ surf->nshaders++;
+ break;
+
+ case ID_SDAT:
+ if ( !shdr ) {
+ goto Fail;
+ }
+ shdr->data = getbytes( fp, sz );
+ break;
+
+ default:
+ break;
+ }
+
+ /* error while reading current subchunk? */
+
+ rlen = get_flen();
+ if ( rlen < 0 || rlen > sz ) {
+ goto Fail;
+ }
+
+ /* skip unread parts of the current subchunk */
+
+ if ( rlen < sz ) {
+ _pico_memstream_seek( fp, sz - rlen, PICO_SEEK_CUR );
+ }
+
+ /* end of the SURF chunk? */
+
+ if ( cksize <= _pico_memstream_tell( fp ) - pos ) {
+ break;
+ }
+
+ /* get the next subchunk header */
+
+ set_flen( 0 );
+ id = getU4( fp );
+ sz = getU2( fp );
+ if ( 6 != get_flen() ) {
+ goto Fail;
+ }
+ }
+
+ return surf;
Fail:
- if ( surf ) lwFreeSurface( surf );
- return NULL;
+ if ( surf ) {
+ lwFreeSurface( surf );
+ }
+ return NULL;
}
/*
-======================================================================
-lwGetPolygons5()
-
-Read polygon records from a POLS chunk in an LWOB file. The polygons
-are added to the array in the lwPolygonList.
-====================================================================== */
-
-int lwGetPolygons5( picoMemStream_t *fp, int cksize, lwPolygonList *plist, int ptoffset )
-{
- lwPolygon *pp;
- lwPolVert *pv;
- unsigned char *buf, *bp;
- int i, j, nv, nverts, npols;
-
-
- if ( cksize == 0 ) return 1;
-
- /* read the whole chunk */
-
- set_flen( 0 );
- buf = getbytes( fp, cksize );
- if ( !buf ) goto Fail;
-
- /* count the polygons and vertices */
-
- nverts = 0;
- npols = 0;
- bp = buf;
-
- while ( bp < buf + cksize ) {
- nv = sgetU2( &bp );
- nverts += nv;
- npols++;
- bp += 2 * nv;
- i = sgetI2( &bp );
- if ( i < 0 ) bp += 2; /* detail polygons */
- }
-
- if ( !lwAllocPolygons( plist, npols, nverts ))
- goto Fail;
-
- /* fill in the new polygons */
-
- bp = buf;
- pp = plist->pol + plist->offset;
- pv = plist->pol[ 0 ].v + plist->voffset;
-
- for ( i = 0; i < npols; i++ ) {
- nv = sgetU2( &bp );
-
- pp->nverts = nv;
- pp->type = ID_FACE;
- if ( !pp->v ) pp->v = pv;
- for ( j = 0; j < nv; j++ )
- pv[ j ].index = sgetU2( &bp ) + ptoffset;
- j = sgetI2( &bp );
- if ( j < 0 ) {
- j = -j;
- bp += 2;
- }
- j -= 1;
- pp->surf = ( lwSurface * ) (size_t) j;
-
- pp++;
- pv += nv;
- }
-
- _pico_free( buf );
- return 1;
+ ======================================================================
+ lwGetPolygons5()
+
+ Read polygon records from a POLS chunk in an LWOB file. The polygons
+ are added to the array in the lwPolygonList.
+ ====================================================================== */
+
+int lwGetPolygons5( picoMemStream_t *fp, int cksize, lwPolygonList *plist, int ptoffset ){
+ lwPolygon *pp;
+ lwPolVert *pv;
+ unsigned char *buf, *bp;
+ int i, j, nv, nverts, npols;
+
+
+ if ( cksize == 0 ) {
+ return 1;
+ }
+
+ /* read the whole chunk */
+
+ set_flen( 0 );
+ buf = getbytes( fp, cksize );
+ if ( !buf ) {
+ goto Fail;
+ }
+
+ /* count the polygons and vertices */
+
+ nverts = 0;
+ npols = 0;
+ bp = buf;
+
+ while ( bp < buf + cksize ) {
+ nv = sgetU2( &bp );
+ nverts += nv;
+ npols++;
+ bp += 2 * nv;
+ i = sgetI2( &bp );
+ if ( i < 0 ) {
+ bp += 2; /* detail polygons */
+ }
+ }
+
+ if ( !lwAllocPolygons( plist, npols, nverts ) ) {
+ goto Fail;
+ }
+
+ /* fill in the new polygons */
+
+ bp = buf;
+ pp = plist->pol + plist->offset;
+ pv = plist->pol[ 0 ].v + plist->voffset;
+
+ for ( i = 0; i < npols; i++ ) {
+ nv = sgetU2( &bp );
+
+ pp->nverts = nv;
+ pp->type = ID_FACE;
+ if ( !pp->v ) {
+ pp->v = pv;
+ }
+ for ( j = 0; j < nv; j++ )
+ pv[ j ].index = sgetU2( &bp ) + ptoffset;
+ j = sgetI2( &bp );
+ if ( j < 0 ) {
+ j = -j;
+ bp += 2;
+ }
+ j -= 1;
+ pp->surf = ( lwSurface * ) (size_t) j;
+
+ pp++;
+ pv += nv;
+ }
+
+ _pico_free( buf );
+ return 1;
Fail:
- if ( buf ) _pico_free( buf );
- lwFreePolygons( plist );
- return 0;
+ if ( buf ) {
+ _pico_free( buf );
+ }
+ lwFreePolygons( plist );
+ return 0;
}
/*
-======================================================================
-getLWObject5()
+ ======================================================================
+ getLWObject5()
-Returns the contents of an LWOB, given its filename, or NULL if the
-file couldn't be loaded. On failure, failID and failpos can be used
-to diagnose the cause.
+ Returns the contents of an LWOB, given its filename, or NULL if the
+ file couldn't be loaded. On failure, failID and failpos can be used
+ to diagnose the cause.
-1. If the file isn't an LWOB, failpos will contain 12 and failID will
+ 1. If the file isn't an LWOB, failpos will contain 12 and failID will
be unchanged.
-2. If an error occurs while reading an LWOB, failID will contain the
+ 2. If an error occurs while reading an LWOB, failID will contain the
most recently read IFF chunk ID, and failpos will contain the
value returned by _pico_memstream_tell() at the time of the failure.
-3. If the file couldn't be opened, or an error occurs while reading
+ 3. If the file couldn't be opened, or an error occurs while reading
the first 12 bytes, both failID and failpos will be unchanged.
-If you don't need this information, failID and failpos can be NULL.
-====================================================================== */
-
-lwObject *lwGetObject5( const char *filename, picoMemStream_t *fp, unsigned int *failID, int *failpos )
-{
- lwObject *object;
- lwLayer *layer;
- lwNode *node;
- unsigned int id, formsize, type, cksize;
-
-
- /* open the file */
-
- if ( !fp ) return NULL;
-
- /* read the first 12 bytes */
-
- set_flen( 0 );
- id = getU4( fp );
- formsize = getU4( fp );
- type = getU4( fp );
- if ( 12 != get_flen() ) {
- return NULL;
- }
-
- /* LWOB? */
-
- if ( id != ID_FORM || type != ID_LWOB ) {
- if ( failpos ) *failpos = 12;
- return NULL;
- }
-
- /* allocate an object and a default layer */
-
- object = _pico_calloc( 1, sizeof( lwObject ));
- if ( !object ) goto Fail;
-
- layer = _pico_calloc( 1, sizeof( lwLayer ));
- if ( !layer ) goto Fail;
- object->layer = layer;
- object->nlayers = 1;
-
- /* get the first chunk header */
-
- id = getU4( fp );
- cksize = getU4( fp );
- if ( 0 > get_flen() ) goto Fail;
-
- /* process chunks as they're encountered */
-
- while ( 1 ) {
- cksize += cksize & 1;
-
- switch ( id )
- {
- case ID_PNTS:
- if ( !lwGetPoints( fp, cksize, &layer->point ))
- goto Fail;
- break;
-
- case ID_POLS:
- if ( !lwGetPolygons5( fp, cksize, &layer->polygon,
- layer->point.offset ))
- goto Fail;
- break;
-
- case ID_SRFS:
- if ( !lwGetTags( fp, cksize, &object->taglist ))
- goto Fail;
- break;
-
- case ID_SURF:
- node = ( lwNode * ) lwGetSurface5( fp, cksize, object );
- if ( !node ) goto Fail;
- lwListAdd( (void *) &object->surf, node );
- object->nsurfs++;
- break;
-
- default:
- _pico_memstream_seek( fp, cksize, PICO_SEEK_CUR );
- break;
- }
-
- /* end of the file? */
-
- if ( formsize <= (unsigned int) (_pico_memstream_tell( fp ) - 8) ) break;
-
- /* get the next chunk header */
-
- set_flen( 0 );
- id = getU4( fp );
- cksize = getU4( fp );
- if ( 8 != get_flen() ) goto Fail;
- }
-
- lwGetBoundingBox( &layer->point, layer->bbox );
- lwGetPolyNormals( &layer->point, &layer->polygon );
- if ( !lwGetPointPolygons( &layer->point, &layer->polygon )) goto Fail;
- if ( !lwResolvePolySurfaces( &layer->polygon, &object->taglist,
- &object->surf, &object->nsurfs )) goto Fail;
- lwGetVertNormals( &layer->point, &layer->polygon );
-
- return object;
+ If you don't need this information, failID and failpos can be NULL.
+ ====================================================================== */
+
+lwObject *lwGetObject5( const char *filename, picoMemStream_t *fp, unsigned int *failID, int *failpos ){
+ lwObject *object;
+ lwLayer *layer;
+ lwNode *node;
+ unsigned int id, formsize, type, cksize;
+
+
+ /* open the file */
+
+ if ( !fp ) {
+ return NULL;
+ }
+
+ /* read the first 12 bytes */
+
+ set_flen( 0 );
+ id = getU4( fp );
+ formsize = getU4( fp );
+ type = getU4( fp );
+ if ( 12 != get_flen() ) {
+ return NULL;
+ }
+
+ /* LWOB? */
+
+ if ( id != ID_FORM || type != ID_LWOB ) {
+ if ( failpos ) {
+ *failpos = 12;
+ }
+ return NULL;
+ }
+
+ /* allocate an object and a default layer */
+
+ object = _pico_calloc( 1, sizeof( lwObject ) );
+ if ( !object ) {
+ goto Fail;
+ }
+
+ layer = _pico_calloc( 1, sizeof( lwLayer ) );
+ if ( !layer ) {
+ goto Fail;
+ }
+ object->layer = layer;
+ object->nlayers = 1;
+
+ /* get the first chunk header */
+
+ id = getU4( fp );
+ cksize = getU4( fp );
+ if ( 0 > get_flen() ) {
+ goto Fail;
+ }
+
+ /* process chunks as they're encountered */
+
+ while ( 1 ) {
+ cksize += cksize & 1;
+
+ switch ( id )
+ {
+ case ID_PNTS:
+ if ( !lwGetPoints( fp, cksize, &layer->point ) ) {
+ goto Fail;
+ }
+ break;
+
+ case ID_POLS:
+ if ( !lwGetPolygons5( fp, cksize, &layer->polygon,
+ layer->point.offset ) ) {
+ goto Fail;
+ }
+ break;
+
+ case ID_SRFS:
+ if ( !lwGetTags( fp, cksize, &object->taglist ) ) {
+ goto Fail;
+ }
+ break;
+
+ case ID_SURF:
+ node = ( lwNode * ) lwGetSurface5( fp, cksize, object );
+ if ( !node ) {
+ goto Fail;
+ }
+ lwListAdd( (void *) &object->surf, node );
+ object->nsurfs++;
+ break;
+
+ default:
+ _pico_memstream_seek( fp, cksize, PICO_SEEK_CUR );
+ break;
+ }
+
+ /* end of the file? */
+
+ if ( formsize <= (unsigned int) ( _pico_memstream_tell( fp ) - 8 ) ) {
+ break;
+ }
+
+ /* get the next chunk header */
+
+ set_flen( 0 );
+ id = getU4( fp );
+ cksize = getU4( fp );
+ if ( 8 != get_flen() ) {
+ goto Fail;
+ }
+ }
+
+ lwGetBoundingBox( &layer->point, layer->bbox );
+ lwGetPolyNormals( &layer->point, &layer->polygon );
+ if ( !lwGetPointPolygons( &layer->point, &layer->polygon ) ) {
+ goto Fail;
+ }
+ if ( !lwResolvePolySurfaces( &layer->polygon, &object->taglist,
+ &object->surf, &object->nsurfs ) ) {
+ goto Fail;
+ }
+ lwGetVertNormals( &layer->point, &layer->polygon );
+
+ return object;
Fail:
- if ( failID ) *failID = id;
- if ( fp ) {
- if ( failpos ) *failpos = _pico_memstream_tell( fp );
- }
- lwFreeObject( object );
- return NULL;
+ if ( failID ) {
+ *failID = id;
+ }
+ if ( fp ) {
+ if ( failpos ) {
+ *failpos = _pico_memstream_tell( fp );
+ }
+ }
+ lwFreeObject( object );
+ return NULL;
}
-int lwValidateObject5( const char *filename, picoMemStream_t *fp, unsigned int *failID, int *failpos )
-{
- unsigned int id, type;
+int lwValidateObject5( const char *filename, picoMemStream_t *fp, unsigned int *failID, int *failpos ){
+ unsigned int id, type;
- /* open the file */
+ /* open the file */
- if ( !fp ) return PICO_PMV_ERROR_MEMORY;
+ if ( !fp ) {
+ return PICO_PMV_ERROR_MEMORY;
+ }
- /* read the first 12 bytes */
+ /* read the first 12 bytes */
- set_flen( 0 );
- id = getU4( fp );
- /* formsize = */ getU4( fp );
- type = getU4( fp );
- if ( 12 != get_flen() ) {
- return PICO_PMV_ERROR_SIZE;
- }
+ set_flen( 0 );
+ id = getU4( fp );
+ /* formsize = */ getU4( fp );
+ type = getU4( fp );
+ if ( 12 != get_flen() ) {
+ return PICO_PMV_ERROR_SIZE;
+ }
- /* LWOB? */
+ /* LWOB? */
- if ( id != ID_FORM || type != ID_LWOB ) {
- if ( failpos ) *failpos = 12;
- return PICO_PMV_ERROR_IDENT;
- }
+ if ( id != ID_FORM || type != ID_LWOB ) {
+ if ( failpos ) {
+ *failpos = 12;
+ }
+ return PICO_PMV_ERROR_IDENT;
+ }
- return PICO_PMV_OK;
+ return PICO_PMV_OK;
}
projects / xonotic / netradiant.git / blobdiff