src/libs/glut/glut_util.c

   1 /*
   2  * Copyright 1994-1997 Mark Kilgard, All rights reserved.
   3  * Distributed under the terms of the MIT License.
   4  *
   5  * GPL licensing not permitted.
   6  *
   7  * Authors:
   8  *      Mark Kilgard
   9  */
  10
  11
  12 #include <stdlib.h>
  13 #include <stdarg.h>
  14 #include <string.h>
  15 #include <stdio.h>
  16
  17 #include "glutint.h"
  18
  19
  20 /* strdup is actually not a standard ANSI C or POSIX routine
  21    so implement a private one for GLUT.  OpenVMS does not have a
  22    strdup; Linux's standard libc doesn't declare strdup by default
  23    (unless BSD or SVID interfaces are requested). */
  24 char *
  25 __glutStrdup(const char *string)
  26 {
  27   char *copy;
  28
  29   copy = (char*) malloc(strlen(string) + 1);
  30   if (copy == NULL)
  31     return NULL;
  32   strcpy(copy, string);
  33   return copy;
  34 }
  35
  36 void
  37 __glutWarning(const char *format,...)
  38 {
  39   va_list args;
  40
  41   va_start(args, format);
  42   fprintf(stderr, "GLUT: Warning in %s: ",
  43     __glutProgramName ? __glutProgramName : "(unamed)");
  44   vfprintf(stderr, format, args);
  45   va_end(args);
  46   putc('\n', stderr);
  47 }
  48
  49 /* CENTRY */
  50 void APIENTRY
  51 glutReportErrors(void)
  52 {
  53   GLenum error;
  54
  55   while ((error = glGetError()) != GL_NO_ERROR)
  56     __glutWarning("GL error: %s", gluErrorString(error));
  57 }
  58 /* ENDCENTRY */
  59
  60 void
  61 __glutFatalError(const char *format,...)
  62 {
  63   va_list args;
  64
  65   va_start(args, format);
  66   fprintf(stderr, "GLUT: Fatal Error in %s: ",
  67     __glutProgramName ? __glutProgramName : "(unamed)");
  68   vfprintf(stderr, format, args);
  69   va_end(args);
  70   putc('\n', stderr);
  71   exit(1);
  72 }
  73
  74 void
  75 __glutFatalUsage(const char *format,...)
  76 {
  77   va_list args;
  78
  79   va_start(args, format);
  80   fprintf(stderr, "GLUT: Fatal API Usage in %s: ",
  81     __glutProgramName ? __glutProgramName : "(unamed)");
  82   vfprintf(stderr, format, args);
  83   va_end(args);
  84   putc('\n', stderr);
  85   abort();
  86 }