1 files changed, 70 insertions, 0 deletions
diff --git a/include/xlnx-tools.h b/include/xlnx-tools.h
new file mode 100644
index 0000000..799d915
--- /dev/null
+++ b/include/xlnx-tools.h
@@ -0,0 +1,70 @@
+/*
+ * Xilinx Video Library - Tools
+ *
+ * Copyright (C) 2014-2016 Ideas on board Oy
+ *
+ * Contact: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
+ *
+ * This library is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation; either version 2.1 of the License, or (at
+ * your option) any later version.
+ *
+ * This library 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.
+ */
+
+#ifndef __XLNX_TOOLS_H__
+#define __XLNX_TOOLS_H__
+
+#define ARRAY_SIZE(array)	(sizeof(array) / sizeof((array)[0]))
+#define FIELD_SIZEOF(t, f)	(sizeof(((t*)0)->f))
+
+#define min(a, b) ({				\
+	typeof(a) __a = (a);			\
+	typeof(b) __b = (b);			\
+	__a < __b ? __a : __b;			\
+})
+
+#define min_t(type, a, b) ({			\
+	type __a = (a);				\
+	type __b = (b);				\
+	__a < __b ? __a : __b;			\
+})
+
+#define max(a, b) ({				\
+	typeof(a) __a = (a);			\
+	typeof(b) __b = (b);			\
+	__a > __b ? __a : __b;			\
+})
+
+#define max_t(type, a, b) ({			\
+	type __a = (a);				\
+	type __b = (b);				\
+	__a > __b ? __a : __b;			\
+})
+
+#define clamp(val, min, max) ({			\
+	typeof(val) __val = (val);		\
+	typeof(min) __min = (min);		\
+	typeof(max) __max = (max);		\
+	__val = __val < __min ? __min : __val;	\
+	__val > __max ? __max : __val;		\
+})
+
+#define clamp_t(type, val, min, max) ({		\
+	type __val = (val);			\
+	type __min = (min);			\
+	type __max = (max);			\
+	__val = __val < __min ? __min : __val;	\
+	__val > __max ? __max : __val;		\
+})
+
+#define div_round_up(num, denom)	(((num) + (denom) - 1) / (denom))
+
+#define container_of(ptr, type, member) \
+	(type *)((char *)(ptr) - offsetof(type, member))
+
+#endif /* __XLNX_TOOLS_H__ */