ref: d0a7561dd20847504b2449e17fd791f6c2800c84
dir: /util.c/
#include <u.h> #include <libc.h> #include <thread.h> #include <draw.h> #include <memdraw.h> #include <geometry.h> #include "libobj/obj.h" #include "graphics.h" #include "internal.h" int min(int a, int b) { return a < b? a: b; } int max(int a, int b) { return a > b? a: b; } double fmin(double a, double b) { return a < b? a: b; } double fmax(double a, double b) { return a > b? a: b; } Point2 modulapt2(Point2 a, Point2 b) { return (Point2){a.x*b.x, a.y*b.y, a.w*b.w}; } Point3 modulapt3(Point3 a, Point3 b) { return (Point3){a.x*b.x, a.y*b.y, a.z*b.z, a.w*b.w}; } void memsetf(void *dp, float v, usize len) { float *p, *ep; for(p = dp, ep = p+len; p < ep; p++) *p = v; } void memsetl(void *dp, ulong v, usize len) { ulong *p, *ep; for(p = dp, ep = p+len; p < ep; p++) *p = v; } Memimage * rgb(ulong c) { Memimage *i; i = eallocmemimage(UR, RGBA32); i->flags |= Frepl; i->clipr = Rect(-1e6, -1e6, 1e6, 1e6); memfillcolor(i, c); return i; } Memimage * dupmemimage(Memimage *i) { Memimage *ni; if(i == nil) return nil; ni = allocmemimaged(i->r, i->chan, i->data); if(ni == nil) sysfatal("allocmemimaged: %r"); ni->data->ref++; return ni; }