Mesa (master): util: add MIN4, MAX4

[Keith Whitwell]

Module: Mesa
Branch: master
Commit: e826d0e8170028da553d2018b833af7c26b8dc1b
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=e826d0e8170028da553d2018b833af7c26b8dc1b

Author: Keith Whitwell <keithw at vmware.com>
Date:   Thu Aug 26 20:03:03 2010 +0100

util: add MIN4, MAX4

---

 src/gallium/auxiliary/util/u_math.h |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/src/gallium/auxiliary/util/u_math.h b/src/gallium/auxiliary/util/u_math.h
index fe19466..6ba4e24 100644
--- a/src/gallium/auxiliary/util/u_math.h
+++ b/src/gallium/auxiliary/util/u_math.h
@@ -566,6 +566,9 @@ util_bswap16(uint16_t n)
 #define MIN3( A, B, C ) MIN2( MIN2( A, B ), C )
 #define MAX3( A, B, C ) MAX2( MAX2( A, B ), C )
 
+#define MIN4( A, B, C, D ) MIN2( MIN2( A, B ), MIN2(C, D) )
+#define MAX4( A, B, C, D ) MAX2( MAX2( A, B ), MIN2(C, D) )
+
 
 /**
  * Align a value, only works pot alignemnts.