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[model] Make alias skin loading a batch operation

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Really, this won't make all that much difference because alias models
with more than one skin are quite rare, and those with animated skin
groups are even rarer. However, for those models that do have more than
one skin, it will allow for reduced allocation overheads, and when
supported (glsl, vulkan, maybe gl), loading all the skins into an array
texture (since all skins are the same size, though external skins may
vary), but that's not implemented yet, this just wraps the old one skin
at a time code.
This commit is contained in:
Bill Currie 2022-04-04 15:38:27 +09:00
parent f66df59c43
commit e40f3f4f93
12 changed files with 105 additions and 35 deletions
Download patch file Download diff file Expand all files Collapse all files

25
libs/models/alias/model_alias.c
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@ -75,8 +75,14 @@ Mod_LoadAllSkins (mod_alias_ctx_t *alias_ctx, int numskins,
pskindesc[snum].type = pskintype->type;
if (pskintype->type == ALIAS_SKIN_SINGLE) {
skin = (byte *) (pskintype + 1);
skin = m_funcs->Mod_LoadSkin (alias_ctx, skin, skinsize, snum, 0,
false, &pskindesc[snum]);
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;
@ -107,13 +113,20 @@ Mod_LoadAllSkins (mod_alias_ctx_t *alias_ctx, int numskins,
for (gnum = 0; gnum < groupskins; gnum++) {
paliasskingroup->skindescs[gnum].type = ALIAS_SKIN_SINGLE;
skin = mod_funcs->Mod_LoadSkin (alias_ctx, skin, skinsize,
snum, gnum, true,
&paliasskingroup->skindescs[gnum]);
skin = (byte *) (pskintype + 1);
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;
}
@ -232,6 +245,7 @@ Mod_LoadAliasModel (model_t *mod, void *buffer, cache_allocator_t allocator)
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
@ -392,4 +406,5 @@ Mod_LoadAliasModel (model_t *mod, void *buffer, cache_allocator_t allocator)
DARRAY_CLEAR (&alias_ctx.poseverts);
DARRAY_CLEAR (&alias_ctx.stverts);
DARRAY_CLEAR (&alias_ctx.triangles);
DARRAY_CLEAR (&alias_ctx.skins);
}