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/pig.h | 47 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 47 insertions(+) create mode 100644 src/pig.h (limited to 'src/pig.h') diff --git a/src/pig.h b/src/pig.h new file mode 100644 index 0000000..7042a3f --- /dev/null +++ b/src/pig.h @@ -0,0 +1,47 @@ +/* + * Copyright (C) 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 . + */ + +#ifndef _PIG_H +#define _PIG_H + +#include + +#include + +#include "m4f.h" +#include "v3f.h" + +typedef struct pig_t { + SDL_Window *window; + SDL_GLContext *gl; + stage_t *stage; + unsigned window_width, window_height; + unsigned windowed:1; + m4f_t transform; + float seed; + v3f_t color; +} pig_t; + +void pig_canvas_size(pig_t *pig, int *res_width, int *res_height); +void pig_canvas_to_ndc(pig_t *pig, int x, int y, float *res_x, float *res_y); +void pig_canvas_from_ndc(pig_t *pig, float x, float y, int *res_x, int *res_y); +void pig_viewport_size(pig_t *pig, int *res_width, int *res_height); +void pig_viewport_to_ndc(pig_t *pig, int x, int y, float *res_x, float *res_y); +void pig_viewport_from_ndc(pig_t *pig, float x, float y, int *res_x, int *res_y); +uint32_t pig_viewport_id(pig_t *pig); +void pig_toggle_fullscreen(pig_t *pig); + +#endif -- cgit v1.2.3