diff options
Diffstat (limited to 'src/mesa/drivers/dri/r200/r200_tex.c')
| -rw-r--r-- | src/mesa/drivers/dri/r200/r200_tex.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/src/mesa/drivers/dri/r200/r200_tex.c b/src/mesa/drivers/dri/r200/r200_tex.c index 85283a9d93..6723b12bf4 100644 --- a/src/mesa/drivers/dri/r200/r200_tex.c +++ b/src/mesa/drivers/dri/r200/r200_tex.c @@ -324,18 +324,19 @@ static void r200TexEnv( GLcontext *ctx, GLenum target, case GL_TEXTURE_LOD_BIAS_EXT: { GLfloat bias, min; GLuint b; - const int fixed_one = 0x8000000; + const int fixed_one = R200_LOD_BIAS_FIXED_ONE; /* The R200's LOD bias is a signed 2's complement value with a * range of -16.0 <= bias < 16.0. * * NOTE: Add a small bias to the bias for conform mipsel.c test. */ - bias = *param + .01; + bias = *param; min = driQueryOptionb (&rmesa->radeon.optionCache, "no_neg_lod_bias") ? 0.0 : -16.0; bias = CLAMP( bias, min, 16.0 ); - b = (int)(bias * fixed_one) & R200_LOD_BIAS_MASK; + b = ((int)(bias * fixed_one) + + R200_LOD_BIAS_CORRECTION) & R200_LOD_BIAS_MASK; if ( (rmesa->hw.tex[unit].cmd[TEX_PP_TXFORMAT_X] & R200_LOD_BIAS_MASK) != b ) { R200_STATECHANGE( rmesa, tex[unit] ); |