mirror of
https://git.code.sf.net/p/quake/quakeforge
synced 2024-12-13 14:10:57 +00:00
f97fb90d90
Although the skin pointer was being advanced after recording the information in for the batch array, it was being reset the next time around the loop (due to a mistranslation of the previous code). This fixes the segfault while loading (gl, glsl, vulkan) or rendering (sw) the sphere model from Rogue.
409 lines
12 KiB
C
409 lines
12 KiB
C
/*
|
|
model_alias.c
|
|
|
|
alias model loading and caching
|
|
|
|
Copyright (C) 1996-1997 Id Software, Inc.
|
|
|
|
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:
|
|
|
|
Free Software Foundation, Inc.
|
|
59 Temple Place - Suite 330
|
|
Boston, MA 02111-1307, USA
|
|
|
|
*/
|
|
// models are the only shared resource between a client and server running
|
|
// on the same machine.
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
# include "config.h"
|
|
#endif
|
|
|
|
#ifdef HAVE_STRING_H
|
|
# include <string.h>
|
|
#endif
|
|
#ifdef HAVE_STRINGS_H
|
|
# include <strings.h>
|
|
#endif
|
|
|
|
#include "QF/crc.h"
|
|
#include "QF/msg.h"
|
|
#include "QF/qendian.h"
|
|
#include "QF/quakefs.h"
|
|
#include "QF/sys.h"
|
|
|
|
#include "compat.h"
|
|
#include "d_iface.h"
|
|
#include "mod_internal.h"
|
|
#include "r_local.h"
|
|
|
|
static void *
|
|
Mod_LoadAllSkins (mod_alias_ctx_t *alias_ctx, int numskins,
|
|
daliasskintype_t *pskintype, int *pskinindex)
|
|
{
|
|
aliashdr_t *header = alias_ctx->header;
|
|
byte *skin;
|
|
float *poutskinintervals;
|
|
int groupskins, skinsize, gnum, snum, t;
|
|
daliasskingroup_t *pinskingroup;
|
|
daliasskininterval_t *pinskinintervals;
|
|
maliasskindesc_t *pskindesc;
|
|
maliasskingroup_t *paliasskingroup;
|
|
|
|
if (numskins < 1 || numskins > MAX_SKINS)
|
|
Sys_Error ("Mod_LoadAliasModel: Invalid # of skins: %d", numskins);
|
|
|
|
skinsize = header->mdl.skinwidth * header->mdl.skinheight;
|
|
pskindesc = Hunk_AllocName (0, numskins * sizeof (maliasskindesc_t),
|
|
alias_ctx->mod->name);
|
|
|
|
*pskinindex = (byte *) pskindesc - (byte *) header;
|
|
|
|
for (snum = 0; snum < numskins; snum++) {
|
|
pskindesc[snum].type = pskintype->type;
|
|
if (pskintype->type == ALIAS_SKIN_SINGLE) {
|
|
skin = (byte *) (pskintype + 1);
|
|
mod_alias_skin_t askin = {
|
|
.skin_num = snum,
|
|
.group_num = -1,
|
|
.texels = skin,
|
|
.skindesc = &pskindesc[snum],
|
|
};
|
|
skin += skinsize;
|
|
DARRAY_APPEND (&alias_ctx->skins, askin);
|
|
} else {
|
|
pskintype++;
|
|
pinskingroup = (daliasskingroup_t *) pskintype;
|
|
groupskins = LittleLong (pinskingroup->numskins);
|
|
|
|
t = field_offset (maliasskingroup_t, skindescs[groupskins]);
|
|
paliasskingroup = Hunk_AllocName (0, t, alias_ctx->mod->name);
|
|
paliasskingroup->numskins = groupskins;
|
|
|
|
pskindesc[snum].skin = (byte *) paliasskingroup - (byte *) header;
|
|
|
|
pinskinintervals = (daliasskininterval_t *) (pinskingroup + 1);
|
|
poutskinintervals = Hunk_AllocName (0, groupskins * sizeof (float),
|
|
alias_ctx->mod->name);
|
|
paliasskingroup->intervals =
|
|
(byte *) poutskinintervals - (byte *) header;
|
|
for (gnum = 0; gnum < groupskins; gnum++) {
|
|
*poutskinintervals = LittleFloat (pinskinintervals->interval);
|
|
if (*poutskinintervals <= 0)
|
|
Sys_Error ("Mod_LoadAliasSkinGroup: interval<=0");
|
|
|
|
poutskinintervals++;
|
|
pinskinintervals++;
|
|
}
|
|
|
|
pskintype = (void *) pinskinintervals;
|
|
skin = (byte *) pskintype;
|
|
|
|
for (gnum = 0; gnum < groupskins; gnum++) {
|
|
paliasskingroup->skindescs[gnum].type = ALIAS_SKIN_SINGLE;
|
|
mod_alias_skin_t askin = {
|
|
.skin_num = snum,
|
|
.group_num = gnum,
|
|
.texels = skin,
|
|
.skindesc = &paliasskingroup->skindescs[gnum],
|
|
};
|
|
skin += skinsize;
|
|
DARRAY_APPEND (&alias_ctx->skins, askin);
|
|
}
|
|
}
|
|
pskintype = (daliasskintype_t *) skin;
|
|
}
|
|
mod_funcs->Mod_LoadAllSkins (alias_ctx);
|
|
|
|
return pskintype;
|
|
}
|
|
|
|
static void *
|
|
Mod_LoadAliasFrame (mod_alias_ctx_t *alias_ctx, void *pin, int *posenum,
|
|
maliasframedesc_t *frame, int extra)
|
|
{
|
|
aliashdr_t *header = alias_ctx->header;
|
|
daliasframe_t *pdaliasframe;
|
|
trivertx_t *pinframe;
|
|
|
|
pdaliasframe = (daliasframe_t *) pin;
|
|
|
|
memcpy (frame->name, pdaliasframe->name, sizeof (frame->name));
|
|
frame->name[sizeof (frame->name) - 1] = 0;
|
|
frame->firstpose = (*posenum);
|
|
frame->numposes = 1;
|
|
|
|
// byte values, don't worry about endianness
|
|
VectorCopy (pdaliasframe->bboxmin.v, frame->bboxmin.v);
|
|
VectorCopy (pdaliasframe->bboxmax.v, frame->bboxmax.v);
|
|
VectorCompMin (frame->bboxmin.v, alias_ctx->aliasbboxmins,
|
|
alias_ctx->aliasbboxmins);
|
|
VectorCompMax (frame->bboxmax.v, alias_ctx->aliasbboxmaxs,
|
|
alias_ctx->aliasbboxmaxs);
|
|
|
|
pinframe = (trivertx_t *) (pdaliasframe + 1);
|
|
|
|
DARRAY_APPEND (&alias_ctx->poseverts, pinframe);
|
|
(*posenum)++;
|
|
|
|
pinframe += header->mdl.numverts;
|
|
if (extra)
|
|
pinframe += header->mdl.numverts;
|
|
|
|
return pinframe;
|
|
}
|
|
|
|
static void *
|
|
Mod_LoadAliasGroup (mod_alias_ctx_t *alias_ctx, void *pin, int *posenum,
|
|
maliasframedesc_t *frame, int extra)
|
|
{
|
|
aliashdr_t *header = alias_ctx->header;
|
|
model_t *mod = alias_ctx->mod;
|
|
daliasgroup_t *pingroup;
|
|
daliasinterval_t *pin_intervals;
|
|
float *poutintervals;
|
|
int i, numframes;
|
|
maliasgroup_t *paliasgroup;
|
|
void *ptemp;
|
|
|
|
pingroup = (daliasgroup_t *) pin;
|
|
|
|
numframes = LittleLong (pingroup->numframes);
|
|
|
|
frame->firstpose = (*posenum);
|
|
frame->numposes = numframes;
|
|
|
|
paliasgroup = Hunk_AllocName (0, field_offset (maliasgroup_t,
|
|
frames[numframes]),
|
|
mod->name);
|
|
paliasgroup->numframes = numframes;
|
|
frame->frame = (byte *) paliasgroup - (byte *) header;
|
|
|
|
// these are byte values, so we don't have to worry about endianness
|
|
VectorCopy (pingroup->bboxmin.v, frame->bboxmin.v);
|
|
VectorCopy (pingroup->bboxmax.v, frame->bboxmax.v);
|
|
VectorCompMin (frame->bboxmin.v, alias_ctx->aliasbboxmins,
|
|
alias_ctx->aliasbboxmins);
|
|
VectorCompMax (frame->bboxmax.v, alias_ctx->aliasbboxmaxs,
|
|
alias_ctx->aliasbboxmaxs);
|
|
|
|
pin_intervals = (daliasinterval_t *) (pingroup + 1);
|
|
poutintervals = Hunk_AllocName (0, numframes * sizeof (float), mod->name);
|
|
paliasgroup->intervals = (byte *) poutintervals - (byte *) header;
|
|
frame->interval = LittleFloat (pin_intervals->interval);
|
|
for (i = 0; i < numframes; i++) {
|
|
*poutintervals = LittleFloat (pin_intervals->interval);
|
|
if (*poutintervals <= 0.0)
|
|
Sys_Error ("Mod_LoadAliasGroup: interval<=0");
|
|
poutintervals++;
|
|
pin_intervals++;
|
|
}
|
|
|
|
ptemp = (void *) pin_intervals;
|
|
for (i = 0; i < numframes; i++) {
|
|
maliasframedesc_t temp_frame;
|
|
ptemp = Mod_LoadAliasFrame (alias_ctx, ptemp, posenum, &temp_frame,
|
|
extra);
|
|
memcpy (&paliasgroup->frames[i], &temp_frame,
|
|
sizeof (paliasgroup->frames[i]));
|
|
}
|
|
|
|
return ptemp;
|
|
}
|
|
|
|
void
|
|
Mod_LoadAliasModel (model_t *mod, void *buffer, cache_allocator_t allocator)
|
|
{
|
|
size_t size, start, end, total;
|
|
int version, numframes, i, j;
|
|
int extra = 0; // extra precision bytes
|
|
void *mem;
|
|
dtriangle_t *pintriangles;
|
|
daliasframetype_t *pframetype;
|
|
daliasskintype_t *pskintype;
|
|
mdl_t *pinmodel, *pmodel;
|
|
unsigned short crc;
|
|
stvert_t *pinstverts;
|
|
mod_alias_ctx_t alias_ctx = {};
|
|
aliashdr_t *header;
|
|
|
|
alias_ctx.mod = mod;
|
|
//FIXME should be per batch rather than per model
|
|
DARRAY_INIT (&alias_ctx.poseverts, 256);
|
|
DARRAY_INIT (&alias_ctx.stverts, 256);
|
|
DARRAY_INIT (&alias_ctx.triangles, 256);
|
|
DARRAY_INIT (&alias_ctx.skins, 256);
|
|
|
|
if (LittleLong (* (unsigned int *) buffer) == HEADER_MDL16)
|
|
extra = 1; // extra precision bytes
|
|
|
|
CRC_Init (&crc);
|
|
CRC_ProcessBlock (buffer, &crc, qfs_filesize);
|
|
|
|
start = Hunk_LowMark (0);
|
|
|
|
pinmodel = (mdl_t *) buffer;
|
|
|
|
version = LittleLong (pinmodel->version);
|
|
if (version != ALIAS_VERSION_MDL)
|
|
Sys_Error ("%s has wrong version number (%i should be %i)",
|
|
mod->name, version, ALIAS_VERSION_MDL);
|
|
|
|
// allocate space for a working header, plus all the data except the
|
|
// frame data, skin and group info
|
|
size = field_offset (aliashdr_t, frames[LittleLong (pinmodel->numframes)]);
|
|
header = Hunk_AllocName (0, size, mod->name);
|
|
memset (header, 0, size);
|
|
alias_ctx.header = header;
|
|
pmodel = &header->mdl;
|
|
header->model = (byte *) pmodel - (byte *) header;
|
|
|
|
header->crc = crc;
|
|
|
|
mod->flags = LittleLong (pinmodel->flags);
|
|
|
|
// endian-adjust and copy the data, starting with the alias model header
|
|
pmodel->ident = LittleLong (pinmodel->ident);
|
|
pmodel->boundingradius = LittleFloat (pinmodel->boundingradius);
|
|
pmodel->numskins = LittleLong (pinmodel->numskins);
|
|
pmodel->skinwidth = LittleLong (pinmodel->skinwidth);
|
|
pmodel->skinheight = LittleLong (pinmodel->skinheight);
|
|
|
|
if (pmodel->skinheight > MAX_LBM_HEIGHT)
|
|
Sys_Error ("model %s has a skin taller than %d", mod->name,
|
|
MAX_LBM_HEIGHT);
|
|
|
|
DARRAY_RESIZE (&alias_ctx.poseverts, 0);
|
|
pmodel->numverts = LittleLong (pinmodel->numverts);
|
|
|
|
if (pmodel->numverts <= 0)
|
|
Sys_Error ("model %s has no vertices", mod->name);
|
|
|
|
DARRAY_RESIZE (&alias_ctx.stverts, pmodel->numverts);
|
|
|
|
pmodel->numtris = LittleLong (pinmodel->numtris);
|
|
|
|
if (pmodel->numtris <= 0)
|
|
Sys_Error ("model %s has no triangles", mod->name);
|
|
|
|
DARRAY_RESIZE (&alias_ctx.triangles, pmodel->numtris);
|
|
|
|
pmodel->numframes = LittleLong (pinmodel->numframes);
|
|
numframes = pmodel->numframes;
|
|
if (numframes < 1)
|
|
Sys_Error ("Mod_LoadAliasModel: Invalid # of frames: %d", numframes);
|
|
|
|
pmodel->size = LittleFloat (pinmodel->size) * ALIAS_BASE_SIZE_RATIO;
|
|
mod->synctype = LittleLong (pinmodel->synctype);
|
|
mod->numframes = pmodel->numframes;
|
|
|
|
for (i = 0; i < 3; i++) {
|
|
pmodel->scale[i] = LittleFloat (pinmodel->scale[i]);
|
|
pmodel->scale_origin[i] = LittleFloat (pinmodel->scale_origin[i]);
|
|
pmodel->eyeposition[i] = LittleFloat (pinmodel->eyeposition[i]);
|
|
}
|
|
|
|
// load the skins
|
|
pskintype = (daliasskintype_t *) &pinmodel[1];
|
|
pskintype = Mod_LoadAllSkins (&alias_ctx, header->mdl.numskins, pskintype,
|
|
&header->skindesc);
|
|
|
|
// load base s and t vertices
|
|
pinstverts = (stvert_t *) pskintype;
|
|
|
|
for (i = 0; i < header->mdl.numverts; i++) {
|
|
alias_ctx.stverts.a[i].onseam = LittleLong (pinstverts[i].onseam);
|
|
alias_ctx.stverts.a[i].s = LittleLong (pinstverts[i].s);
|
|
alias_ctx.stverts.a[i].t = LittleLong (pinstverts[i].t);
|
|
}
|
|
|
|
// load triangle lists
|
|
pintriangles = (dtriangle_t *) &pinstverts[header->mdl.numverts];
|
|
|
|
for (i = 0; i < header->mdl.numtris; i++) {
|
|
alias_ctx.triangles.a[i].facesfront =
|
|
LittleLong (pintriangles[i].facesfront);
|
|
|
|
for (j = 0; j < 3; j++) {
|
|
alias_ctx.triangles.a[i].vertindex[j] =
|
|
LittleLong (pintriangles[i].vertindex[j]);
|
|
}
|
|
}
|
|
|
|
// load the frames
|
|
int posenum = 0;
|
|
pframetype = (daliasframetype_t *) &pintriangles[header->mdl.numtris];
|
|
VectorSet (99999, 99999, 99999, alias_ctx.aliasbboxmins);
|
|
VectorSet (-99999, -99999, -99999, alias_ctx.aliasbboxmaxs);
|
|
|
|
for (i = 0; i < numframes; i++) {
|
|
aliasframetype_t frametype;
|
|
|
|
frametype = LittleLong (pframetype->type);
|
|
header->frames[i].type = frametype;
|
|
|
|
if (frametype == ALIAS_SINGLE) {
|
|
pframetype = (daliasframetype_t *)
|
|
Mod_LoadAliasFrame (&alias_ctx, pframetype + 1, &posenum,
|
|
&header->frames[i], extra);
|
|
} else {
|
|
pframetype = (daliasframetype_t *)
|
|
Mod_LoadAliasGroup (&alias_ctx, pframetype + 1, &posenum,
|
|
&header->frames[i], extra);
|
|
}
|
|
}
|
|
|
|
header->numposes = posenum;
|
|
|
|
mod->type = mod_alias;
|
|
|
|
VectorCompMultAdd (header->mdl.scale_origin, header->mdl.scale,
|
|
alias_ctx.aliasbboxmins, mod->mins);
|
|
VectorCompMultAdd (header->mdl.scale_origin, header->mdl.scale,
|
|
alias_ctx.aliasbboxmaxs, mod->maxs);
|
|
|
|
mod->radius = RadiusFromBounds (mod->mins, mod->maxs);
|
|
|
|
// build the draw lists
|
|
m_funcs->Mod_MakeAliasModelDisplayLists (&alias_ctx, buffer,
|
|
qfs_filesize, extra);
|
|
|
|
if (m_funcs->Mod_FinalizeAliasModel) {
|
|
m_funcs->Mod_FinalizeAliasModel (&alias_ctx);
|
|
}
|
|
|
|
if (m_funcs->Mod_LoadExternalSkins) {
|
|
m_funcs->Mod_LoadExternalSkins (&alias_ctx);
|
|
}
|
|
|
|
// move the complete, relocatable alias model to the cache
|
|
if (m_funcs->alias_cache) {
|
|
end = Hunk_LowMark (0);
|
|
total = end - start;
|
|
|
|
mem = allocator (&mod->cache, total, mod->name);
|
|
if (mem)
|
|
memcpy (mem, header, total);
|
|
|
|
Hunk_FreeToLowMark (0, start);
|
|
mod->aliashdr = 0;
|
|
} else {
|
|
mod->aliashdr = header;
|
|
}
|
|
DARRAY_CLEAR (&alias_ctx.poseverts);
|
|
DARRAY_CLEAR (&alias_ctx.stverts);
|
|
DARRAY_CLEAR (&alias_ctx.triangles);
|
|
DARRAY_CLEAR (&alias_ctx.skins);
|
|
}
|