1 /*****************************************************************************
2 * common.h: common definitions
3 * Collection of useful common types and macros definitions
4 *****************************************************************************
5 * Copyright (C) 1998, 1999, 2000 VideoLAN
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * General Public License for more details.
19 * You should have received a copy of the GNU General Public
20 * License along with this program; if not, write to the
21 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
22 * Boston, MA 02111-1307, USA.
23 *****************************************************************************/
25 /*****************************************************************************
28 *****************************************************************************/
30 /*****************************************************************************
31 * Basic types definitions
32 *****************************************************************************/
34 #include "int_types.h"
39 typedef int boolean_t;
41 #define _MACH_I386_BOOLEAN_H_
44 /* Counter for statistics and profiling */
45 typedef unsigned long count_t;
47 /*****************************************************************************
49 *****************************************************************************/
54 struct intf_console_s;
56 struct intf_channel_s;
58 typedef struct intf_thread_s * p_intf_thread_t;
59 typedef struct intf_sys_s * p_intf_sys_t;
60 typedef struct intf_console_s * p_intf_console_t;
61 typedef struct intf_msg_s * p_intf_msg_t;
62 typedef struct intf_channel_s * p_intf_channel_t;
65 struct input_thread_s;
69 typedef struct input_thread_s * p_input_thread_t;
70 typedef struct input_vlan_s * p_input_vlan_t;
71 typedef struct input_cfg_s * p_input_cfg_t;
77 typedef struct aout_thread_s * p_aout_thread_t;
78 typedef struct aout_sys_s * p_aout_sys_t;
86 struct video_parser_s;
88 typedef struct vout_thread_s * p_vout_thread_t;
89 typedef struct vout_font_s * p_vout_font_t;
90 typedef struct vout_sys_s * p_vout_sys_t;
91 typedef struct vdec_thread_s * p_vdec_thread_t;
92 typedef struct vpar_thread_s * p_vpar_thread_t;
93 typedef struct video_parser_s * p_video_parser_t;
95 /*****************************************************************************
96 * Macros and inline functions
97 *****************************************************************************/
99 /* CEIL: division with round to nearest greater integer */
100 #define CEIL(n, d) ( ((n) / (d)) + ( ((n) % (d)) ? 1 : 0) )
102 /* PAD: PAD(n, d) = CEIL(n ,d) * d */
103 #define PAD(n, d) ( ((n) % (d)) ? ((((n) / (d)) + 1) * (d)) : (n) )
105 /* MAX and MIN: self explanatory */
108 #define MAX(a, b) ( ((a) > (b)) ? (a) : (b) )
111 #define MIN(a, b) ( ((a) < (b)) ? (a) : (b) )
115 /* MSB (big endian)/LSB (little endian) convertions - network order is always
116 * MSB, and should be used for both network communications and files. Note that
117 * byte orders other than little and big endians are not supported, but only
118 * the VAX seems to have such exotic properties - note that these 'functions'
119 * needs <netinet/in.h> or the local equivalent. */
120 /* FIXME??: hton64 should be declared as an extern inline function to avoid border
121 * effects (see byteorder.h) */
122 #if __BYTE_ORDER == __LITTLE_ENDIAN
125 #define hton64(i) ( ((u64)(htonl((i) & 0xffffffff)) << 32) | htonl(((i) >> 32) & 0xffffffff ) )
128 #define ntoh64 hton64
129 #elif __BYTE_ORDER == __BIG_ENDIAN
132 #define hton64(i) ( i )
135 #define ntoh64(i) ( i )
137 /* XXX??: cause a compilation error */
140 /* Macros used by input to access the TS buffer */
141 #define U32_AT(p) ( ntohl ( *( (u32 *)(p) ) ) )
142 #define U16_AT(p) ( ntohs ( *( (u16 *)(p) ) ) )