From 54dac2c84310536cce962101de29546d3eb80175 Mon Sep 17 00:00:00 2001 From: Roland Scheidegger Date: Fri, 9 Feb 2007 00:36:40 +0100 Subject: optimize generated vertex programs a bit Use new internal state to avoid per-vertex normalization of static spot direction vector. Use internal state for simpler per-vertex fog computations (MAD instead of SUB/MUL for linear fog, EX2 instead of POW for EXP/EXP2 fog). Simplify point size calc (2 MADs instead of MOV, MUL, MUL, DP3), and while there fix it up (RSQ instead of RCP). All untested... --- src/mesa/main/imports.h | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'src/mesa/main') diff --git a/src/mesa/main/imports.h b/src/mesa/main/imports.h index d9885dbeec..0633b3b8bf 100644 --- a/src/mesa/main/imports.h +++ b/src/mesa/main/imports.h @@ -138,6 +138,14 @@ typedef union { GLfloat f; GLint i; } fi_type; #define M_E (2.7182818284590452354) #endif +#ifndef ONE_DIV_LN2 +#define ONE_DIV_LN2 (1.442695040888963456) +#endif + +#ifndef ONE_DIV_SQRT_LN2 +#define ONE_DIV_SQRT_LN2 (1.201122408786449815) +#endif + #ifndef FLT_MAX_EXP #define FLT_MAX_EXP 128 #endif -- cgit v1.2.3