ReactOS  0.4.14-dev-384-g5b37caa
trimvertpool.cc
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1 /*
2 ** License Applicability. Except to the extent portions of this file are
3 ** made subject to an alternative license as permitted in the SGI Free
4 ** Software License B, Version 1.1 (the "License"), the contents of this
5 ** file are subject only to the provisions of the License. You may not use
6 ** this file except in compliance with the License. You may obtain a copy
7 ** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600
8 ** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at:
9 **
10 ** http://oss.sgi.com/projects/FreeB
11 **
12 ** Note that, as provided in the License, the Software is distributed on an
13 ** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS
14 ** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND
15 ** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A
16 ** PARTICULAR PURPOSE, AND NON-INFRINGEMENT.
17 **
18 ** Original Code. The Original Code is: OpenGL Sample Implementation,
19 ** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics,
20 ** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc.
21 ** Copyright in any portions created by third parties is as indicated
22 ** elsewhere herein. All Rights Reserved.
23 **
24 ** Additional Notice Provisions: The application programming interfaces
25 ** established by SGI in conjunction with the Original Code are The
26 ** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released
27 ** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version
28 ** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X
29 ** Window System(R) (Version 1.3), released October 19, 1998. This software
30 ** was created using the OpenGL(R) version 1.2.1 Sample Implementation
31 ** published by SGI, but has not been independently verified as being
32 ** compliant with the OpenGL(R) version 1.2.1 Specification.
33 */
34 
35 /*
36  * trimvertexpool.c++
37  *
38  */
39 
40 //#include "glimports.h"
41 //#include "myassert.h"
42 //#include "mystdio.h"
43 //#include "mystring.h"
44 #include "trimvertex.h"
45 #include "trimvertpool.h"
46 //#include "bufpool.h"
47 
48 /*----------------------------------------------------------------------------
49  * TrimVertexPool::TrimVertexPool
50  *----------------------------------------------------------------------------
51  */
53  : pool( sizeof(TrimVertex)*3, 32, "Threevertspool" )
54 {
55  // initialize array of pointers to vertex lists
56  nextvlistslot = 0;
59 }
60 
61 /*----------------------------------------------------------------------------
62  * TrimVertexPool::~TrimVertexPool
63  *----------------------------------------------------------------------------
64  */
66 {
67  // free all arrays of TrimVertices vertices
68  while( nextvlistslot ) {
69  delete [] vlist[--nextvlistslot];
70  }
71 
72  // reallocate space for array of pointers to vertex lists
73  if( vlist ) delete[] vlist;
74 }
75 
76 /*----------------------------------------------------------------------------
77  * TrimVertexPool::clear
78  *----------------------------------------------------------------------------
79  */
80 void
82 {
83  // reinitialize pool of 3 vertex arrays
84  pool.clear();
85 
86  // free all arrays of TrimVertices vertices
87  while( nextvlistslot ) {
88  delete [] vlist[--nextvlistslot];
89  vlist[nextvlistslot] = 0;
90  }
91 
92  // reallocate space for array of pointers to vertex lists
93  if( vlist ) delete[] vlist;
95 }
96 
97 
98 /*----------------------------------------------------------------------------
99  * TrimVertexPool::get - allocate a vertex list
100  *----------------------------------------------------------------------------
101  */
102 TrimVertex *
104 {
105  TrimVertex *v;
106  if( n == 3 ) {
107  v = (TrimVertex *) pool.new_buffer();
108  } else {
109  if( nextvlistslot == vlistsize ) {
110  vlistsize *= 2;
111  TrimVertex_p *nvlist = new TrimVertex_p[vlistsize];
112  memcpy( nvlist, vlist, nextvlistslot * sizeof(TrimVertex_p) );
113  if( vlist ) delete[] vlist;
114  vlist = nvlist;
115  }
116  v = vlist[nextvlistslot++] = new TrimVertex[n];
117  }
118  return v;
119 }
#define INIT_VERTLISTSIZE
Definition: trimvertpool.h:43
TrimVertex ** vlist
Definition: trimvertpool.h:53
ActualNumberDriverObjects * sizeof(PDRIVER_OBJECT)) PDRIVER_OBJECT *DriverObjectList
class TrimVertex * TrimVertex_p
Definition: trimvertex.h:53
GLdouble n
Definition: glext.h:7729
TrimVertexPool(void)
Definition: trimvertpool.cc:52
TrimVertex * get(int)
~TrimVertexPool(void)
Definition: trimvertpool.cc:65
void clear(void)
Definition: trimvertpool.cc:81
#define memcpy(s1, s2, n)
Definition: mkisofs.h:878
const GLdouble * v
Definition: gl.h:2040