1 files changed, 34 insertions, 0 deletions
diff --git a/modules/libgrbase/bitwise_map.h b/modules/libgrbase/bitwise_map.h
new file mode 100644
index 0000000..fdcf990
--- /dev/null
+++ b/modules/libgrbase/bitwise_map.h
@@ -0,0 +1,34 @@
+/*
+ *  Copyright © 2006-2013 SplinterGU (Fenix/Bennugd)
+ *
+ *  This file is part of Bennu - Game Development
+ *
+ *  This software is provided 'as-is', without any express or implied
+ *  warranty. In no event will the authors be held liable for any damages
+ *  arising from the use of this software.
+ *
+ *  Permission is granted to anyone to use this software for any purpose,
+ *  including commercial applications, and to alter it and redistribute it
+ *  freely, subject to the following restrictions:
+ *
+ *     1. The origin of this software must not be misrepresented; you must not
+ *     claim that you wrote the original software. If you use this software
+ *     in a product, an acknowledgment in the product documentation would be
+ *     appreciated but is not required.
+ *
+ *     2. Altered source versions must be plainly marked as such, and must not be
+ *     misrepresented as being the original software.
+ *
+ *     3. This notice may not be removed or altered from any source
+ *     distribution.
+ *
+ */
+
+#ifndef __BITWISE_MAP_H
+#define __BITWISE_MAP_H
+
+#define bit_set(m,b)    (((uint32_t *)(m))[(b)>>5] |=   1<<((b)&0x1F))
+#define bit_clr(m,b)    (((uint32_t *)(m))[(b)>>5] &= ~(1<<((b)&0x1F)))
+#define bit_tst(m,b)    (((uint32_t *)(m))[(b)>>5] &   (1<<((b)&0x1F)))
+
+#endif