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/clear-node.c | 47 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 47 insertions(+) create mode 100644 src/clear-node.c (limited to 'src/clear-node.c') diff --git a/src/clear-node.c b/src/clear-node.c new file mode 100644 index 0000000..19093e4 --- /dev/null +++ b/src/clear-node.c @@ -0,0 +1,47 @@ +/* + * Copyright (C) 2018-2020 - 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 . + */ + +#include + +#include + +#include "clear-node.h" +#include "glad.h" +#include "macros.h" + + +static void clear_node_render(const stage_t *stage, void *object, float alpha, void *render_ctxt) +{ + glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT); +} + + +static const stage_ops_t clear_node_ops = { + .render_func = clear_node_render, +}; + + +stage_t * clear_node_new(stage_conf_t *conf) +{ + stage_t *s; + + assert(conf); + + s = stage_new(conf, &clear_node_ops, NULL); + fatal_if(!s, "Unable to create stage \"%s\"", conf->name); + + return s; +} -- cgit v1.2.3