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-rw-r--r--src/mesa/main/macros.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/src/mesa/main/macros.h b/src/mesa/main/macros.h
index a8624574de..40e17e53d6 100644
--- a/src/mesa/main/macros.h
+++ b/src/mesa/main/macros.h
@@ -127,6 +127,9 @@ extern GLfloat _mesa_ubyte_to_float_color_tab[256];
#define CLAMPED_FLOAT_TO_USHORT(us, f) \
us = ( (GLushort) IROUND( (f) * 65535.0F) )
+#define UNCLAMPED_FLOAT_TO_SHORT(s, f) \
+ s = ( (GLshort) IROUND( CLAMP((f), -1.0F, 1.0F) * 32767.0F) )
+
/*@}*/