From 94de2291e005f1c646fd779e8d32b2820e22e071 Mon Sep 17 00:00:00 2001 From: Vito Caputo Date: Fri, 31 Jul 2020 16:54:31 -0700 Subject: *: initial implementation of pig This is nothing to write home about, but it provides a little sandbox for developing shader-generated textures in the spirit of shadertoy or the demoscene tool bonzomatic. It's more oriented towards developing shaders for use with libstage in the small games I've been hacking on. --- src/bb2f.h | 37 +++++++++++++++++++++++++++++++++++++ 1 file changed, 37 insertions(+) create mode 100644 src/bb2f.h (limited to 'src/bb2f.h') diff --git a/src/bb2f.h b/src/bb2f.h new file mode 100644 index 0000000..675f19a --- /dev/null +++ b/src/bb2f.h @@ -0,0 +1,37 @@ +/* + * Copyright (C) 2018-2019 - Vito Caputo - + * + * This program is free software: you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 3 as published + * by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +#ifndef _BB2F_H +#define _BB2F_H + +#include "v2f.h" + +typedef struct bb2f_t { + v2f_t min, max; +} bb2f_t; + +/* linearly interpolate between a and b by t */ +static inline bb2f_t bb2f_lerp(const bb2f_t *a, const bb2f_t *b, float t) +{ + bb2f_t bb2f; + + bb2f.min = v2f_lerp(&a->min, &b->min, t); + bb2f.max = v2f_lerp(&a->max, &b->max, t); + + return bb2f; +} + +#endif -- cgit v1.2.3