ref: 078a88d34b87ffb1333a1ff886a551ad49ca1d79
dir: /image/fns.h/
#define min(a,b) ((a)<(b)?(a):(b)) #define max(a,b) ((a)>(b)?(a):(b)) #define clamp(a,b,c) min(max(a,b),c) void *emalloc(ulong); void *erealloc(void*, ulong); int eopen(char*, int); Memimage *eallocmemimage(Rectangle, ulong); Memimage *ereadmemimage(int); int ewritememimage(int, Memimage*); void imgbinop(Memimage*, Memimage*, int(*)(uchar, uchar), int); void imgunaop(Memimage*, int(*)(uchar), int);