src/glu/sgi/libutil/error.c

   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 ** $Date: 2001/03/17 00:25:41 $ $Revision: 1.1 $
  35 ** $Header: /home/krh/git/sync/mesa-cvs-repo/Mesa/src/glu/sgi/libutil/error.c,v 1.1 2001/03/17 00:25:41 brianp Exp $
  36 */
  37
  38 #include "gluos.h"
  39 #include "gluint.h"
  40 #include <GL/glu.h>
  41 #include <stdio.h>
  42 #include <stdlib.h>
  43
  44 static const char *glErrorStrings[GL_OUT_OF_MEMORY - GL_INVALID_ENUM + 1] = {
  45     "invalid enumerant",
  46     "invalid value",
  47     "invalid operation",
  48     "stack overflow",
  49     "stack underflow",
  50     "out of memory",
  51 };
  52
  53 static const char *gluErrorStrings[GLU_INVALID_OPERATION - GLU_INVALID_ENUM + 1] = {
  54     "invalid enumerant",
  55     "invalid value",
  56     "out of memory",
  57     "",                         /* never used but need placeholder */
  58     "invalid operation",
  59 };
  60
  61 #define NERRORS (sizeof(errorStrings)/sizeof(errorStrings[0]))
  62
  63 const GLubyte* GLAPIENTRY
  64 gluErrorString(GLenum errorCode)
  65 {
  66     if (errorCode == 0) {
  67         return (const unsigned char *) "no error";
  68     }
  69     if ((errorCode >= GL_INVALID_ENUM) && (errorCode <= GL_OUT_OF_MEMORY)) {
  70         return (const unsigned char *) glErrorStrings[errorCode - GL_INVALID_ENUM];
  71     }
  72     if (errorCode == GL_TABLE_TOO_LARGE) {
  73         return (const unsigned char *) "table too large";
  74     }
  75     if ((errorCode >= GLU_INVALID_ENUM) && (errorCode <= GLU_INVALID_OPERATION)) {
  76         return (const unsigned char *) gluErrorStrings[errorCode - GLU_INVALID_ENUM];
  77     }
  78     if ((errorCode >= GLU_NURBS_ERROR1) && (errorCode <= GLU_NURBS_ERROR37)) {
  79         return (const unsigned char *) __gluNURBSErrorString(errorCode - (GLU_NURBS_ERROR1 - 1));
  80     }
  81     if ((errorCode >= GLU_TESS_ERROR1) && (errorCode <= GLU_TESS_ERROR8)) {
  82         return (const unsigned char *) __gluTessErrorString(errorCode - (GLU_TESS_ERROR1 - 1));
  83     }
  84
  85     return 0;
  86 }
  87