kc3-lang/SDL/Xcode-iOS/Demos/src/common.c

Branch : - branch - v2.28 - tag -

• Show log

  Commit

• Author : Philipp Wiesemann
  Date : 2015-06-21 17:33:46
  Hash : 0e45984f
  Message : Fixed crash if initialization of EGL failed but was tried again later. The internal function SDL_EGL_LoadLibrary() did not delete and remove a mostly uninitialized data structure if loading the library first failed. A later try to use EGL then skipped initialization and assumed it was previously successful because the data structure now already existed. This led to at least one crash in the internal function SDL_EGL_ChooseConfig() because a NULL pointer was dereferenced to make a call to eglBindAPI().

• Xcode-iOS/Demos/src/common.c

• /*
   *  common.c
   *  written by Holmes Futrell
   *  use however you want
   */
  
  #include "common.h"
  #include "SDL.h"
  #include <stdlib.h>
  
  /*
      Produces a random int x, min <= x <= max
      following a uniform distribution
  */
  int
  randomInt(int min, int max)
  {
      return min + rand() % (max - min + 1);
  }
  
  /*
      Produces a random float x, min <= x <= max
      following a uniform distribution
   */
  float
  randomFloat(float min, float max)
  {
      return rand() / (float) RAND_MAX *(max - min) + min;
  }
  
  void
  fatalError(const char *string)
  {
      printf("%s: %s\n", string, SDL_GetError());
      exit(1);
  }