new cvar: gl_mesh_cache. controls minimum triangle count in a model before

the model is cached or cache checks are done for that model. 0 disables
caching entrirely.
This commit is contained in:
Bill Currie 2001-08-14 20:02:54 +00:00
parent b277881832
commit 9f2418d873
2 changed files with 110 additions and 95 deletions

View file

@ -39,6 +39,7 @@
#include <stdio.h>
#include "QF/console.h"
#include "QF/cvar.h"
#include "QF/mdfour.h"
#include "QF/model.h"
#include "QF/sys.h"
@ -50,6 +51,8 @@
ALIAS MODEL DISPLAY LIST GENERATION
*/
extern cvar_t *gl_mesh_cache;
model_t *aliasmodel;
aliashdr_t *paliashdr;
@ -350,81 +353,87 @@ GL_MakeAliasModelDisplayLists (model_t *m, aliashdr_t *hdr, void *_m, int _s)
unsigned char model_digest[MDFOUR_DIGEST_BYTES];
unsigned char mesh_digest[MDFOUR_DIGEST_BYTES];
qboolean remesh = true;
qboolean do_cache = false;
aliasmodel = m;
paliashdr = hdr; // (aliashdr_t *)Mod_Extradata (m);
mdfour (model_digest, (unsigned char *) _m, _s);
if (gl_mesh_cache->int_val
&& gl_mesh_cache->int_val <= paliashdr->mdl.numtris) {
do_cache = true;
// look for a cached version
strcpy (cache, "glquake/");
COM_StripExtension (m->name + strlen ("progs/"),
cache + strlen ("glquake/"));
strncat (cache, ".qfms", sizeof (cache) - strlen (cache));
mdfour (model_digest, (unsigned char *) _m, _s);
COM_FOpenFile (cache, &f);
if (f) {
unsigned char d1[MDFOUR_DIGEST_BYTES];
unsigned char d2[MDFOUR_DIGEST_BYTES];
struct mdfour md;
int *c = 0;
int nc = 0;
int *vo = 0;
int no = 0;
int len;
int vers;
// look for a cached version
strcpy (cache, "glquake/");
COM_StripExtension (m->name + strlen ("progs/"),
cache + strlen ("glquake/"));
strncat (cache, ".qfms", sizeof (cache) - strlen (cache));
memset (d1, 0, sizeof (d1));
memset (d2, 0, sizeof (d2));
COM_FOpenFile (cache, &f);
if (f) {
unsigned char d1[MDFOUR_DIGEST_BYTES];
unsigned char d2[MDFOUR_DIGEST_BYTES];
struct mdfour md;
int *c = 0;
int nc = 0;
int *vo = 0;
int no = 0;
int len;
int vers;
Qread (f, &vers, sizeof (int));
Qread (f, &len, sizeof (int));
Qread (f, &nc, sizeof (int));
Qread (f, &no, sizeof (int));
memset (d1, 0, sizeof (d1));
memset (d2, 0, sizeof (d2));
if (vers == 1 && (nc + no) == len) {
c = malloc (((nc + 1023) & ~1023) * sizeof (c[0]));
vo = malloc (((no + 1023) & ~1023) * sizeof (vo[0]));
if (!c || !vo)
Sys_Error ("gl_mesh.c: out of memory");
Qread (f, c, nc * sizeof (c[0]));
Qread (f, vo, no * sizeof (vo[0]));
Qread (f, d1, MDFOUR_DIGEST_BYTES);
Qread (f, d2, MDFOUR_DIGEST_BYTES);
Qclose (f);
Qread (f, &vers, sizeof (int));
Qread (f, &len, sizeof (int));
Qread (f, &nc, sizeof (int));
Qread (f, &no, sizeof (int));
mdfour_begin (&md);
mdfour_update (&md, (unsigned char *) &vers, sizeof(int));
mdfour_update (&md, (unsigned char *) &len, sizeof(int));
mdfour_update (&md, (unsigned char *) &nc, sizeof(int));
mdfour_update (&md, (unsigned char *) &no, sizeof(int));
mdfour_update (&md, (unsigned char *) c, nc * sizeof (c[0]));
mdfour_update (&md, (unsigned char *) vo, no * sizeof (vo[0]));
mdfour_update (&md, d1, MDFOUR_DIGEST_BYTES);
mdfour_result (&md, mesh_digest);
if (vers == 1 && (nc + no) == len) {
c = malloc (((nc + 1023) & ~1023) * sizeof (c[0]));
vo = malloc (((no + 1023) & ~1023) * sizeof (vo[0]));
if (!c || !vo)
Sys_Error ("gl_mesh.c: out of memory");
Qread (f, c, nc * sizeof (c[0]));
Qread (f, vo, no * sizeof (vo[0]));
Qread (f, d1, MDFOUR_DIGEST_BYTES);
Qread (f, d2, MDFOUR_DIGEST_BYTES);
Qclose (f);
if (memcmp (d2, mesh_digest, MDFOUR_DIGEST_BYTES) == 0
&& memcmp (d1, model_digest, MDFOUR_DIGEST_BYTES) == 0) {
remesh = false;
numcommands = nc;
numorder = no;
if (numcommands > commands_size) {
if (commands)
free (commands);
commands_size = (numcommands + 1023) & ~1023;
commands = c;
} else {
memcpy (commands, c, numcommands * sizeof (c[0]));
free(c);
}
if (numorder > vertexorder_size) {
if (vertexorder)
free (vertexorder);
vertexorder_size = (numorder + 1023) & ~1023;
vertexorder = vo;
} else {
memcpy (vertexorder, vo, numorder * sizeof (vo[0]));
free (vo);
mdfour_begin (&md);
mdfour_update (&md, (unsigned char *) &vers, sizeof(int));
mdfour_update (&md, (unsigned char *) &len, sizeof(int));
mdfour_update (&md, (unsigned char *) &nc, sizeof(int));
mdfour_update (&md, (unsigned char *) &no, sizeof(int));
mdfour_update (&md, (unsigned char *) c, nc * sizeof (c[0]));
mdfour_update (&md, (unsigned char *) vo, no * sizeof (vo[0]));
mdfour_update (&md, d1, MDFOUR_DIGEST_BYTES);
mdfour_result (&md, mesh_digest);
if (memcmp (d2, mesh_digest, MDFOUR_DIGEST_BYTES) == 0
&& memcmp (d1, model_digest, MDFOUR_DIGEST_BYTES) == 0) {
remesh = false;
numcommands = nc;
numorder = no;
if (numcommands > commands_size) {
if (commands)
free (commands);
commands_size = (numcommands + 1023) & ~1023;
commands = c;
} else {
memcpy (commands, c, numcommands * sizeof (c[0]));
free(c);
}
if (numorder > vertexorder_size) {
if (vertexorder)
free (vertexorder);
vertexorder_size = (numorder + 1023) & ~1023;
vertexorder = vo;
} else {
memcpy (vertexorder, vo, numorder * sizeof (vo[0]));
free (vo);
}
}
}
}
@ -435,40 +444,42 @@ GL_MakeAliasModelDisplayLists (model_t *m, aliashdr_t *hdr, void *_m, int _s)
BuildTris (); // trifans or lists
// save out the cached version
snprintf (fullpath, sizeof (fullpath), "%s/%s", com_gamedir, cache);
f = Qopen (fullpath, "wbz9");
if (!f) {
COM_CreatePath (fullpath);
f = Qopen (fullpath, "wb");
}
if (do_cache) {
// save out the cached version
snprintf (fullpath, sizeof (fullpath), "%s/%s", com_gamedir, cache);
f = Qopen (fullpath, "wbz9");
if (!f) {
COM_CreatePath (fullpath);
f = Qopen (fullpath, "wb");
}
if (f) {
struct mdfour md;
int vers = 1;
int len = numcommands + numorder;
if (f) {
struct mdfour md;
int vers = 1;
int len = numcommands + numorder;
mdfour_begin (&md);
mdfour_update (&md, (unsigned char *) &vers, sizeof (int));
mdfour_update (&md, (unsigned char *) &len, sizeof (int));
mdfour_update (&md, (unsigned char *) &numcommands, sizeof (int));
mdfour_update (&md, (unsigned char *) &numorder, sizeof (int));
mdfour_update (&md, (unsigned char *) commands,
numcommands * sizeof (commands[0]));
mdfour_update (&md, (unsigned char *) vertexorder,
numorder * sizeof (vertexorder[0]));
mdfour_update (&md, model_digest, MDFOUR_DIGEST_BYTES);
mdfour_result (&md, mesh_digest);
mdfour_begin (&md);
mdfour_update (&md, (unsigned char *) &vers, sizeof (int));
mdfour_update (&md, (unsigned char *) &len, sizeof (int));
mdfour_update (&md, (unsigned char *) &numcommands, sizeof (int));
mdfour_update (&md, (unsigned char *) &numorder, sizeof (int));
mdfour_update (&md, (unsigned char *) commands,
numcommands * sizeof (commands[0]));
mdfour_update (&md, (unsigned char *) vertexorder,
numorder * sizeof (vertexorder[0]));
mdfour_update (&md, model_digest, MDFOUR_DIGEST_BYTES);
mdfour_result (&md, mesh_digest);
Qwrite (f, &vers, sizeof (int));
Qwrite (f, &len, sizeof (int));
Qwrite (f, &numcommands, sizeof (int));
Qwrite (f, &numorder, sizeof (int));
Qwrite (f, commands, numcommands * sizeof (commands[0]));
Qwrite (f, vertexorder, numorder * sizeof (vertexorder[0]));
Qwrite (f, model_digest, MDFOUR_DIGEST_BYTES);
Qwrite (f, mesh_digest, MDFOUR_DIGEST_BYTES);
Qclose (f);
Qwrite (f, &vers, sizeof (int));
Qwrite (f, &len, sizeof (int));
Qwrite (f, &numcommands, sizeof (int));
Qwrite (f, &numorder, sizeof (int));
Qwrite (f, commands, numcommands * sizeof (commands[0]));
Qwrite (f, vertexorder, numorder * sizeof (vertexorder[0]));
Qwrite (f, model_digest, MDFOUR_DIGEST_BYTES);
Qwrite (f, mesh_digest, MDFOUR_DIGEST_BYTES);
Qclose (f);
}
}
}

View file

@ -60,6 +60,7 @@ model_t mod_known[MAX_MOD_KNOWN];
int mod_numknown;
cvar_t *gl_subdivide_size;
cvar_t *gl_mesh_cache;
extern byte mod_novis[MAX_MAP_LEAFS / 8];
@ -106,6 +107,9 @@ Mod_Init_Cvars (void)
gl_subdivide_size =
Cvar_Get ("gl_subdivide_size", "128", CVAR_ARCHIVE, NULL,
"Sets the division value for the sky brushes.");
gl_mesh_cache = Cvar_Get ("gl_mesh_cache", "256", CVAR_ARCHIVE, NULL,
"minimum triangle count in a model for its mesh"
" to be cached. 0 to disable caching");
}
void