pig: show sad face on shader errors

Introduces sad-node.[ch] implementing a simple sad face shader node,
normally inactive but made active when the shader files fail to reload.

1 files changed, 27 insertions, 0 deletions

diff --git a/src/sad-node.h b/src/sad-node.h
new file mode 100644
index 0000000..8bbfd9c
--- /dev/null
+++ b/src/sad-node.h
@@ -0,0 +1,27 @@
+/*
+ *  Copyright (C) 2018-2020 - 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 _SAD_NODE_H
+#define _SAD_NODE_H
+
+typedef struct stage_t stage_t;
+typedef struct stage_conf_t stage_conf_t;
+typedef struct m4f_t m4f_t;
+typedef struct v3f_t v3f_t;
+
+stage_t * sad_node_new(const stage_conf_t *conf, const m4f_t *model_x, const v3f_t *color);
+
+#endif