/usr/include/libvisual-0.4/libvisual/lv_random.h is in libvisual-0.4-dev 0.4.0-5.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 | /* Libvisual - The audio visualisation framework.
*
* Copyright (C) 2004, 2005, 2006 Dennis Smit <ds@nerds-incorporated.org>
*
* Authors: Dennis Smit <ds@nerds-incorporated.org>
* Vitaly V. Bursov <vitalyvb@ukr.net>
*
* $Id: lv_random.h,v 1.15 2006/01/22 13:23:37 synap Exp $
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1
* 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef _LV_RANDOM_H
#define _LV_RANDOM_H
#include <libvisual/lv_common.h>
VISUAL_BEGIN_DECLS
#define VISUAL_RANDOMCONTEXT(obj) (VISUAL_CHECK_CAST ((obj), VisRandomContext))
/**
* The highest random nummer.
*/
#define VISUAL_RANDOM_MAX 4294967295U
typedef struct _VisRandomContext VisRandomContext;
/**
* The VisRandomContext data structure is used to keep track of
* the randomizer it's state. When state tracking is used you need
* to use the visual_random_context_* functions.
*/
struct _VisRandomContext {
VisObject object; /**< The VisObject data. */
uint32_t seed; /**< The initial random seed. */
uint32_t seed_state; /**< The current state seed. */
};
/* Non context random macros */
extern VisRandomContext __lv_internal_random_context;
#define visual_random_set_seed(a) visual_random_context_set_seed(&__lv_internal_random_context, a)
#define visual_random_get_seed() visual_random_context_get_seed(&__lv_internal_random_context)
#define visual_random_int() visual_random_context_int(&__lv_internal_random_context)
#define visual_random_int_range(a, b) visual_random_context_int(&__lv_internal_random_context, a, b)
#define visual_random_double () visual_random_context_double(&__lv_internal_random_context);
#define visual_random_float () visual_random_context_float(&__lv_internal_random_context);
#define visual_random_decide(a) visual_random_int(&__lv_internal_random_context, a)
/* Context management */
VisRandomContext *visual_random_context_new (uint32_t seed);
int visual_random_context_init (VisRandomContext *rcontext, uint32_t seed);
int visual_random_context_set_seed (VisRandomContext *rcontext, uint32_t seed);
uint32_t visual_random_context_get_seed (VisRandomContext *rcontext);
uint32_t visual_random_context_get_seed_state (VisRandomContext *rcontext);
/* Context random functions */
uint32_t visual_random_context_int (VisRandomContext *rcontext);
uint32_t visual_random_context_int_range (VisRandomContext *rcontext, int min, int max);
double visual_random_context_double (VisRandomContext *rcontext);
float visual_random_context_float (VisRandomContext *rcontext);
int visual_random_context_decide (VisRandomContext *rcontext, float a);
VISUAL_END_DECLS
#endif /* _LV_RANDOM_H */
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