1 #ifndef OPENGL_H_

2 #define OPENGL_H_

3

4 #include <stdlib.h>

5

6 #ifdef __APPLE__

7 #include "TargetConditionals.h"

8

9 #if TARGET_OS_IPHONE || TARGET_IPHONE_SIMULATOR

10 /* iOS */

11 #include <OpenGLES/ES2/gl.h>

12 #include <OpenGLES/ES2/glext.h>

13

14 #define GL_CLAMP GL_CLAMP_TO_EDGE

15 #define GL_DEPTH24_STENCIL8 GL_DEPTH24_STENCIL8_OES

16

17 #undef USE_OLDGL

18

19 #define GL_WRITE_ONLY GL_WRITE_ONLY_OES

20 #define glMapBuffer glMapBufferOES

21 #define glUnmapBuffer glUnmapBufferOES

22

23 #else

24 /* MacOS X */

25 #include <GL/glew.h>

26 #include <GLUT/glut.h>

27

28 #define USE_OLDGL

29 #endif

30

31 #else

32 /* UNIX or Windows */

33 #include <GL/glew.h>

34 #include <GL/glut.h>

35

36 #define USE_OLDGL

37 #endif

38

39 #ifndef GL_RGB16F

40 #define GL_RGB16F 0x881b

41 #endif

42 #ifndef GL_RGBA16F

43 #define GL_RGBA16F 0x881a

44 #endif

45 #ifndef GL_RGB32F

46 #define GL_RGB32F 0x8815

47 #endif

48 #ifndef GL_RGBA32F

49 #define GL_RGBA32F 0x8814

50 #endif

51 #ifndef GL_LUMINANCE16F

52 #define GL_LUMINANCE16F 0x881e

53 #endif

54 #ifndef GL_LUMINANCE32F

55 #define GL_LUMINANCE32F 0x8818

56 #endif

57

58 #define CHECKGLERR \

59 do { \

60 int err = glGetError(); \

61 if(err) { \

62 fprintf(stderr, "%s:%d: OpenGL error 0x%x: %s\n", __FILE__, __LINE__, err, strglerr(err)); \

63 abort(); \

64 } \

65 } while(0)

66

67 void init_opengl();

68

69 const char *strglerr(int err);

70

71 #endif // OPENGL_H_