mirror of
https://git.code.sf.net/p/quake/quakeforge
synced 2024-12-03 09:32:31 +00:00
151 lines
3.5 KiB
C
151 lines
3.5 KiB
C
/* Copyright (C) 1996-1997 Id Software, Inc.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(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. See the
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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 the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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See file, 'COPYING', for details.
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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 <QF/hash.h>
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#include "qfcc.h"
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def_t *pr_global_defs[MAX_REGS]; // to find def for a global variable
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int pr_edict_size;
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static hashtab_t *defs_by_name;
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static char *
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defs_get_key (void *_def, void *_tab)
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{
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def_t *def = (def_t*)_def;
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hashtab_t **tab = (hashtab_t**) _tab;
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if (tab == &defs_by_name) {
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return def->name;
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}
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return "";
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}
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/*
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PR_GetDef
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If type is NULL, it will match any type
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If allocate is true, a new def will be allocated if it can't be found
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*/
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def_t *
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PR_GetDef (type_t *type, char *name, def_t *scope, qboolean allocate)
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{
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def_t *def;
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char element[MAX_NAME];
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if (!defs_by_name) {
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defs_by_name = Hash_NewTable (16381, defs_get_key, 0, &defs_by_name);
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}
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// see if the name is already in use
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def = (def_t*) Hash_Find (defs_by_name, name);
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if (def) {
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if (allocate && scope == def->scope)
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if (type && def->type != type)
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PR_ParseError ("Type mismatch on redeclaration of %s", name);
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if (!allocate || def->scope == scope)
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return def;
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}
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if (!allocate)
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return NULL;
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// allocate a new def
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def = PR_NewDef (type, name, scope);
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Hash_Add (defs_by_name, def);
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def->ofs = numpr_globals;
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pr_global_defs[numpr_globals] = def;
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/*
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make automatic defs for the vectors elements
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.origin can be accessed as .origin_x, .origin_y, and .origin_z
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*/
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if (type->type == ev_vector) {
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sprintf (element, "%s_x", name);
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PR_GetDef (&type_float, element, scope, true);
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sprintf (element, "%s_y", name);
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PR_GetDef (&type_float, element, scope, true);
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sprintf (element, "%s_z", name);
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PR_GetDef (&type_float, element, scope, true);
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} else {
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numpr_globals += type_size[type->type];
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}
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if (type->type == ev_field) {
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*(int *) &pr_globals[def->ofs] = pr.size_fields;
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if (type->aux_type->type == ev_vector) {
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sprintf (element, "%s_x", name);
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PR_GetDef (&type_floatfield, element, scope, true);
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sprintf (element, "%s_y", name);
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PR_GetDef (&type_floatfield, element, scope, true);
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sprintf (element, "%s_z", name);
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PR_GetDef (&type_floatfield, element, scope, true);
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} else {
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pr.size_fields += type_size[type->aux_type->type];
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}
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}
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// if (pr_dumpasm)
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// PR_PrintOfs (def->ofs);
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return def;
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}
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def_t *
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PR_NewDef (type_t *type, const char *name, def_t *scope)
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{
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def_t *def;
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def = calloc (1, sizeof (def_t));
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pr.def_tail->next = def;
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pr.def_tail = def;
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if (scope) {
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def->scope_next = scope->scope_next;
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scope->scope_next = def;
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}
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def->name = strdup (name);
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def->type = type;
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def->scope = scope;
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return def;
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}
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void
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PR_FlushScope (def_t *scope)
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{
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def_t *def;
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for (def = scope->scope_next; def; def = def->scope_next) {
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Hash_Del (defs_by_name, def->name);
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}
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}
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