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
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
|
/*
* @(#)plex.c
*
* Copyright 1997-1999, Wes Cherry (mailto:wesc@technosis.com)
* 2000-2001, Aaron Ardiri (mailto:aaron@ardiri.com)
* All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any 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
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, please write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
* Revisions:
* ==========
*
* pre 18-Jun-2000 <numerous developers>
* creation
* 18-Jun-2000 Aaron Ardiri
* GNU GPL documentation additions
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <errno.h>
#include "pilrc.h"
void *
PlexGetElementAtUnsafe(PLEX * pplex,
int i)
{
return (void *)((unsigned char *)(pplex->m_rgb) + i * pplex->m_cbItem);
}
BOOL
PlexSetMax(PLEX * pplex,
int iMax)
{
if (iMax != pplex->m_iMax)
{
pplex->m_iMax = iMax;
pplex->m_rgb = realloc(pplex->m_rgb, pplex->m_iMax * pplex->m_cbItem);
return pplex->m_rgb != NULL;
}
return fTrue;
}
BOOL
PlexInit(PLEX * pplex,
int cbItem,
int iMaxInit,
int dGrow)
{
pplex->m_iMac = 0;
pplex->m_iMax = iMaxInit;
pplex->m_dGrow = dGrow;
pplex->m_cbItem = cbItem;
pplex->m_rgb = (void *)calloc(cbItem, iMaxInit);
return (pplex->m_rgb != NULL);
}
VOID
PlexFree(PLEX * pplex)
{
free(pplex->m_rgb);
pplex->m_iMac = pplex->m_iMax = 0;
pplex->m_rgb = NULL;
}
int
PlexGetCount(PLEX * pplex)
{
return pplex->m_iMac;
}
int
PlexGetMax(PLEX * pplex)
{
return pplex->m_iMax;
}
void *
PlexGetElementAt(PLEX * pplex,
int i)
{
Assert(PlexIsValid(pplex));
Assert(i >= 0);
Assert(i < pplex->m_iMac);
return PlexGetElementAtUnsafe(pplex, i);
}
BOOL
PlexAddElement(PLEX * pplex,
void *pb)
{
Assert(PlexIsValid(pplex));
if (pplex->m_iMac == pplex->m_iMax)
{
if (!PlexSetMax(pplex, pplex->m_iMax + pplex->m_dGrow))
return fFalse;
}
memcpy(PlexGetElementAtUnsafe(pplex, pplex->m_iMac), pb, pplex->m_cbItem);
pplex->m_iMac++;
return fTrue;
}
BOOL
PlexIsValid(PLEX * pplex)
{
Assert(pplex->m_iMac <= pplex->m_iMax);
Assert(pplex->m_dGrow > 0);
Assert(pplex->m_cbItem > 0);
if (pplex->m_iMac > 0)
{
Assert(pplex->m_rgb != NULL);
}
return fTrue;
}
|
