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-rw-r--r--mesalib/src/mesa/main/imports.h24
1 files changed, 9 insertions, 15 deletions
diff --git a/mesalib/src/mesa/main/imports.h b/mesalib/src/mesa/main/imports.h
index 2f854e574..abf216c99 100644
--- a/mesalib/src/mesa/main/imports.h
+++ b/mesalib/src/mesa/main/imports.h
@@ -96,18 +96,6 @@ typedef union { GLfloat f; GLint i; } fi_type;
#define DEG2RAD (M_PI/180.0)
-/***
- *** SQRTF: single-precision square root
- ***/
-#define SQRTF(X) (float) sqrt((float) (X))
-
-
-/***
- *** INV_SQRTF: single-precision inverse square root
- ***/
-#define INV_SQRTF(X) (1.0F / SQRTF(X))
-
-
/**
* \name Work-arounds for platforms that lack C99 math functions
*/
@@ -156,9 +144,15 @@ static inline int isblank(int ch) { return ch == ' ' || ch == '\t'; }
#endif
/*@}*/
-#if defined(__SUNPRO_C)
-#define sqrtf(f) ((float) sqrt(f))
-#endif
+
+
+/** single-precision inverse square root */
+static inline float
+INV_SQRTF(float x)
+{
+ /* XXX we could try Quake's fast inverse square root function here */
+ return 1.0F / sqrtf(x);
+}
/***