rewrite gluErrorString() to be more legible
[mesa.git] / 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: 2006/06/20 15:30:26 $ $Revision: 1.3 $
35 ** $Header: /home/krh/git/sync/mesa-cvs-repo/Mesa/src/glu/sgi/libutil/error.c,v 1.3 2006/06/20 15:30:26 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
45 struct token_string
46 {
47 GLuint Token;
48 const char *String;
49 };
50
51 static const struct token_string Errors[] = {
52 { GL_NO_ERROR, "no error" },
53 { GL_INVALID_ENUM, "invalid enumerant" },
54 { GL_INVALID_VALUE, "invalid value" },
55 { GL_INVALID_OPERATION, "invalid operation" },
56 { GL_STACK_OVERFLOW, "stack overflow" },
57 { GL_STACK_UNDERFLOW, "stack underflow" },
58 { GL_OUT_OF_MEMORY, "out of memory" },
59 { GL_TABLE_TOO_LARGE, "table too large" },
60 #ifdef GL_EXT_framebuffer_object
61 { GL_INVALID_FRAMEBUFFER_OPERATION_EXT, "invalid framebuffer operation" },
62 #endif
63 /* GLU */
64 { GLU_INVALID_ENUM, "invalid enumerant" },
65 { GLU_INVALID_VALUE, "invalid value" },
66 { GLU_OUT_OF_MEMORY, "out of memory" },
67 { GLU_INCOMPATIBLE_GL_VERSION, "incompatible gl version" },
68 { GLU_INVALID_OPERATION, "invalid operation" },
69 { ~0, NULL } /* end of list indicator */
70 };
71
72
73
74 const GLubyte* GLAPIENTRY
75 gluErrorString(GLenum errorCode)
76 {
77 int i;
78 for (i = 0; Errors[i].String; i++) {
79 if (Errors[i].Token == errorCode)
80 return (const GLubyte *) Errors[i].String;
81 }
82 if ((errorCode >= GLU_NURBS_ERROR1) && (errorCode <= GLU_NURBS_ERROR37)) {
83 return (const GLubyte *) __gluNURBSErrorString(errorCode - (GLU_NURBS_ERROR1 - 1));
84 }
85 if ((errorCode >= GLU_TESS_ERROR1) && (errorCode <= GLU_TESS_ERROR8)) {
86 return (const GLubyte *) __gluTessErrorString(errorCode - (GLU_TESS_ERROR1 - 1));
87 }
88 return (const GLubyte *) 0;
89 }
90