mirror of
https://git.code.sf.net/p/quake/quakeforge
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973ae0ad54
This is meant for a "permanent" tear-down before freeing the memory holding the VM state or at program shutdown. As a consequence, builtin sub-systems registering resources are now required to pass a "destroy" function pointer that will be called just before the memory holding those resources is freed by the VM resource manager (ie, the manager owns the resource memory block, but each subsystem is responsible for cleaning up any resources held within that block). This even enhances thread-safety in rua_obj (there are some problems with cmd, cvar, and gib).
188 lines
4.3 KiB
C
188 lines
4.3 KiB
C
/*
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bi_model.c
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Ruamkoko model builtins
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Copyright (C) 2022 Bill Currie <bill@taniwha.org>
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to:
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Free Software Foundation, Inc.
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59 Temple Place - Suite 330
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Boston, MA 02111-1307, USA
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*/
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#include <stdlib.h>
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#ifdef HAVE_STRING_H
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# include <string.h>
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#endif
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#ifdef HAVE_STRINGS_H
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# include <strings.h>
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#endif
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#include "QF/model.h"
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#include "QF/progs.h"
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#include "rua_internal.h"
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typedef struct rua_model_s {
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struct rua_model_s *next;
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struct rua_model_s **prev;
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model_t *model;
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} rua_model_t;
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typedef struct {
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PR_RESMAP (rua_model_t) model_map;
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rua_model_t *handles;
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progs_t *pr;
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} rua_model_resources_t;
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static rua_model_t *
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rua_model_handle_new (rua_model_resources_t *res)
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{
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return PR_RESNEW (res->model_map);
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}
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static void
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rua_model_handle_free (rua_model_resources_t *res, rua_model_t *handle)
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{
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PR_RESFREE (res->model_map, handle);
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}
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static void
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rua_model_handle_reset (rua_model_resources_t *res)
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{
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PR_RESRESET (res->model_map);
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}
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static inline rua_model_t * __attribute__((pure))
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rua__model_handle_get (rua_model_resources_t *res, int index, const char *name)
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{
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rua_model_t *handle = 0;
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handle = PR_RESGET(res->model_map, index);
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if (!handle) {
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PR_RunError (res->pr, "invalid model handle passed to %s", name + 3);
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}
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return handle;
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}
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#define rua_model_handle_get(res, index) \
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rua__model_handle_get (res, index, __FUNCTION__)
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static inline int __attribute__((pure))
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rua_model_handle_index (rua_model_resources_t *res, rua_model_t *handle)
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{
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return PR_RESINDEX(res->model_map, handle);
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}
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static void
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bi_rua_model_clear (progs_t *pr, void *_res)
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{
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rua_model_resources_t *res = (rua_model_resources_t *) _res;
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rua_model_t *handle;
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for (handle = res->handles; handle; handle = handle->next)
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Mod_UnloadModel (handle->model);
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res->handles = 0;
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rua_model_handle_reset (res);
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}
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static void
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bi_rua_model_destroy (progs_t *pr, void *_res)
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{
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}
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static int
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alloc_handle (rua_model_resources_t *res, model_t *model)
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{
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rua_model_t *handle = rua_model_handle_new (res);
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if (!handle)
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return 0;
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handle->next = res->handles;
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handle->prev = &res->handles;
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if (res->handles)
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res->handles->prev = &handle->next;
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res->handles = handle;
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handle->model = model;
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return rua_model_handle_index (res, handle);
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}
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static void
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bi_Model_Load (progs_t *pr, void *_res)
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{
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__auto_type res = (rua_model_resources_t *) _res;
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const char *path = P_GSTRING (pr, 0);
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model_t *model;
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R_INT (pr) = 0;
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if (!(model = Mod_ForName (path, 0)))
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return;
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if (!(R_INT (pr) = alloc_handle (res, model)))
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Mod_UnloadModel (model);
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}
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model_t *
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Model_GetModel (progs_t *pr, int handle)
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{
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if (!handle) {
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return 0;
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}
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rua_model_resources_t *res = PR_Resources_Find (pr, "Model");
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rua_model_t *h = rua_model_handle_get (res, handle);
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return h->model;
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}
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static void
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bi_Model_Unload (progs_t *pr, void *_res)
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{
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__auto_type res = (rua_model_resources_t *) _res;
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int handle = P_INT (pr, 0);
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rua_model_t *h = rua_model_handle_get (res, handle);
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if (!h)
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PR_RunError (pr, "invalid model handle passed to Qclose");
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Mod_UnloadModel (h->model);
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*h->prev = h->next;
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if (h->next)
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h->next->prev = h->prev;
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rua_model_handle_free (res, h);
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}
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#define bi(x,np,params...) {#x, bi_##x, -1, np, {params}}
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#define p(type) PR_PARAM(type)
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#define P(a, s) { .size = (s), .alignment = BITOP_LOG2 (a), }
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static builtin_t builtins[] = {
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bi(Model_Load, 1, p(string)),
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bi(Model_Unload, 1, p(ptr)),
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{0}
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};
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void
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RUA_Model_Init (progs_t *pr, int secure)
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{
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rua_model_resources_t *res = calloc (sizeof (rua_model_resources_t), 1);
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res->pr = pr;
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PR_Resources_Register (pr, "Model", res, bi_rua_model_clear,
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bi_rua_model_destroy);
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PR_RegisterBuiltins (pr, builtins, res);
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}
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