*: 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.

1 files changed, 30 insertions, 0 deletions

diff --git a/src/shader.h b/src/shader.h
new file mode 100644
index 0000000..9799e40
--- /dev/null
+++ b/src/shader.h
@@ -0,0 +1,30 @@
+/*
+ *  Copyright (C) 2018-2019 - Vito Caputo - <vcaputo@pengaru.com>
+ *
+ *  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 <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef _SHADER_H
+#define _SHADER_H
+
+typedef struct shader_t shader_t;
+
+unsigned int shader_pair_new_bare(const char *vs_src, const char *fs_src);
+shader_t * shader_pair_new(const char *vs_src, const char *fs_src, unsigned n_uniforms, const char **uniforms, unsigned n_attributes, const char **attributes);
+shader_t * shader_pair_new_files(const char *vs_path, const char *fs_path, unsigned n_uniforms, const char **uniforms, unsigned n_attributes, const char **attributes);
+void shader_ref(shader_t *shader);
+shader_t * shader_free(shader_t *shader);
+void shader_use(shader_t *shader, unsigned *res_n_uniforms, int **res_uniforms, unsigned *res_n_attributes, int **res_attributes);
+int shader_reload_files(shader_t *shader);
+
+#endif