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-rw-r--r--mesalib/src/mesa/main/macros.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/mesalib/src/mesa/main/macros.h b/mesalib/src/mesa/main/macros.h
index 86a58cc6b..01e4d20af 100644
--- a/mesalib/src/mesa/main/macros.h
+++ b/mesalib/src/mesa/main/macros.h
@@ -669,6 +669,10 @@ do { \
/** Maximum of two values: */
#define MAX2( A, B ) ( (A)>(B) ? (A) : (B) )
+/** Minimum and maximum of three values: */
+#define MIN3( A, B, C ) ((A) < (B) ? MIN2(A, C) : MIN2(B, C))
+#define MAX3( A, B, C ) ((A) > (B) ? MAX2(A, C) : MAX2(B, C))
+
/** Dot product of two 2-element vectors */
#define DOT2( a, b ) ( (a)[0]*(b)[0] + (a)[1]*(b)[1] )