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#ifndef G_BASICS_H
#define G_BASICS_H

#define MAX_GRID_X 256
#define MAX_GRID_Y 256
#define MIN_GRID_X 80
#define MIN_GRID_Y 25

#ifndef MAX
# define MAX(a, b) (((a) > (b)) ? (a) : (b))
#endif
#ifndef MIN
# define MIN(a, b) (((a) < (b)) ? (a) : (b))
#endif
#ifndef ARRSZ
# define ARRSZ(arr) (sizeof (arr) / sizeof ((arr)[0]))
#endif
#ifndef CLAMP
#define CLAMP(x,a,b) MIN(MAX((x),(a)),(b))
#endif

// GL error macro
extern int glerrorcount;

#ifdef DEBUG
# define printGLError() do { GLenum err; do { err = glGetError(); if (err && glerrorcount < 40) { printf("GL error: 0x%x in %s:%d\n", err, __FILE__ , __LINE__); glerrorcount++; } } while(err); } while(0);
# define deputs(str) puts(str)
#else
# define printGLError()
# define deputs(str)
#endif

#endif