src/glut/glx/glut_util.c

   1
   2 /* Copyright (c) Mark J. Kilgard, 1994. */
   3
   4 /* This program is freely distributable without licensing fees
   5    and is provided without guarantee or warrantee expressed or
   6    implied. This program is -not- in the public domain. */
   7
   8 #include <stdlib.h>
   9 #include <stdarg.h>
  10 #include <string.h>
  11 #include <stdio.h>
  12
  13 #include "glutint.h"
  14
  15 /* strdup is actually not a standard ANSI C or POSIX routine
  16    so implement a private one for GLUT.  OpenVMS does not have a
  17    strdup; Linux's standard libc doesn't declare strdup by default
  18    (unless BSD or SVID interfaces are requested). */
  19 char *
  20 __glutStrdup(const char *string)
  21 {
  22   char *copy;
  23
  24   copy = (char*) malloc(strlen(string) + 1);
  25   if (copy == NULL)
  26     return NULL;
  27   strcpy(copy, string);
  28   return copy;
  29 }
  30
  31 void
  32 __glutWarning(char *format,...)
  33 {
  34   va_list args;
  35
  36   va_start(args, format);
  37   fprintf(stderr, "GLUT: Warning in %s: ",
  38     __glutProgramName ? __glutProgramName : "(unamed)");
  39   vfprintf(stderr, format, args);
  40   va_end(args);
  41   putc('\n', stderr);
  42 }
  43
  44 /* CENTRY */
  45 void GLUTAPIENTRY
  46 glutReportErrors(void)
  47 {
  48   GLenum error;
  49
  50   while ((error = glGetError()) != GL_NO_ERROR)
  51     __glutWarning("GL error: %s", gluErrorString(error));
  52 }
  53 /* ENDCENTRY */
  54
  55 void
  56 __glutFatalError(char *format,...)
  57 {
  58   va_list args;
  59
  60   va_start(args, format);
  61   fprintf(stderr, "GLUT: Fatal Error in %s: ",
  62     __glutProgramName ? __glutProgramName : "(unamed)");
  63   vfprintf(stderr, format, args);
  64   va_end(args);
  65   putc('\n', stderr);
  66 #ifdef _WIN32
  67   if (__glutExitFunc) {
  68     __glutExitFunc(1);
  69   }
  70 #endif
  71   exit(1);
  72 }
  73
  74 void
  75 __glutFatalUsage(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 }