Change default bilinear interpolation precision to 7 bits

This improves performance for the current SSE2 code. Further
reduction to 4 bits may be considered later if it proves
to allow additional speedup.

diff --git a/pixman/pixman-private.h b/pixman/pixman-private.h
index 22be9a2..0c27798 100644 (file)
--- a/pixman/pixman-private.h
+++ b/pixman/pixman-private.h
@@ -6,7 +6,7 @@
  */
 
 /* bilinear interpolation precision (must be <= 8) */
-#define BILINEAR_INTERPOLATION_BITS 8
+#define BILINEAR_INTERPOLATION_BITS 7
 #define BILINEAR_INTERPOLATION_RANGE (1 << BILINEAR_INTERPOLATION_BITS)
 
 /*