122 lines
3.3 KiB
C
122 lines
3.3 KiB
C
/* $XFree86: xc/programs/Xserver/GL/glx/glxutil.c,v 1.5 2001/03/21 16:29:37 dawes Exp $ */
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/*
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** License Applicability. Except to the extent portions of this file are
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** made subject to an alternative license as permitted in the SGI Free
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** Software License B, Version 1.1 (the "License"), the contents of this
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** file are subject only to the provisions of the License. You may not use
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** this file except in compliance with the License. You may obtain a copy
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** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600
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** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at:
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**
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** http://oss.sgi.com/projects/FreeB
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**
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** Note that, as provided in the License, the Software is distributed on an
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** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS
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** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND
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** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A
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** PARTICULAR PURPOSE, AND NON-INFRINGEMENT.
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**
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** Original Code. The Original Code is: OpenGL Sample Implementation,
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** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics,
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** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc.
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** Copyright in any portions created by third parties is as indicated
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** elsewhere herein. All Rights Reserved.
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**
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** Additional Notice Provisions: The application programming interfaces
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** established by SGI in conjunction with the Original Code are The
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** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released
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** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version
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** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X
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** Window System(R) (Version 1.3), released October 19, 1998. This software
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** was created using the OpenGL(R) version 1.2.1 Sample Implementation
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** published by SGI, but has not been independently verified as being
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** compliant with the OpenGL(R) version 1.2.1 Specification.
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**
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*/
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#define NEED_REPLIES
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#define FONT_PCF
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#include "glxserver.h"
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#include <GL/glxtokens.h>
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#include <pixmapstr.h>
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#include <windowstr.h>
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#include "glxutil.h"
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#include "GL/glx_ansic.h"
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/************************************************************************/
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void __glXNop(void) {}
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/************************************************************************/
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/* Memory Allocation for GLX */
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void *
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__glXMalloc(size_t size)
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{
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void *addr;
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if (size == 0) {
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return NULL;
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}
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addr = (void *) xalloc(size);
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if (addr == NULL) {
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/* XXX: handle out of memory error */
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return NULL;
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}
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return addr;
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}
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void *
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__glXCalloc(size_t numElements, size_t elementSize)
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{
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void *addr;
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size_t size;
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if ((numElements == 0) || (elementSize == 0)) {
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return NULL;
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}
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size = numElements * elementSize;
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addr = (void *) xalloc(size);
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if (addr == NULL) {
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/* XXX: handle out of memory error */
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return NULL;
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}
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__glXMemset(addr, 0, size);
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return addr;
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}
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void *
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__glXRealloc(void *addr, size_t newSize)
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{
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void *newAddr;
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if (addr) {
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if (newSize == 0) {
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xfree(addr);
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return NULL;
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} else {
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newAddr = xrealloc(addr, newSize);
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}
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} else {
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if (newSize == 0) {
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return NULL;
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} else {
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newAddr = xalloc(newSize);
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}
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}
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if (newAddr == NULL) {
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return NULL; /* XXX: out of memory */
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}
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return newAddr;
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}
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void
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__glXFree(void *addr)
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{
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if (addr) {
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xfree(addr);
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}
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}
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