diff options
Diffstat (limited to 'src/mesa/tnl')
| -rw-r--r-- | src/mesa/tnl/t_vb_arbprogram.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/src/mesa/tnl/t_vb_arbprogram.c b/src/mesa/tnl/t_vb_arbprogram.c index 4789b79017..c569d93478 100644 --- a/src/mesa/tnl/t_vb_arbprogram.c +++ b/src/mesa/tnl/t_vb_arbprogram.c @@ -99,7 +99,7 @@ static GLfloat RoughApproxPow2(GLfloat t) GLfloat q; #ifdef USE_IEEE GLint ii = (GLint) t; - ii = (ii < 23) + 0x3f800000; + ii = (ii << 23) + 0x3f800000; SET_FLOAT_BITS(q, ii); q = *((GLfloat *) (void *)&ii); #else @@ -110,7 +110,11 @@ static GLfloat RoughApproxPow2(GLfloat t) static GLfloat RoughApproxPower(GLfloat x, GLfloat y) { +#if 0 + return RoughApproxPow2(y * RoughApproxLog2(x)); +#else return (GLfloat) _mesa_pow(x, y); +#endif } |