diff options
Diffstat (limited to 'src/mesa/drivers/x11/xm_api.c')
| -rw-r--r-- | src/mesa/drivers/x11/xm_api.c | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/src/mesa/drivers/x11/xm_api.c b/src/mesa/drivers/x11/xm_api.c index 96dfc4bfe47..b115c92295f 100644 --- a/src/mesa/drivers/x11/xm_api.c +++ b/src/mesa/drivers/x11/xm_api.c @@ -1,4 +1,4 @@ -/* $Id: xm_api.c,v 1.19 2001/03/19 02:25:36 keithw Exp $ */ +/* $Id: xm_api.c,v 1.20 2001/04/10 15:25:45 brianp Exp $ */ /* * Mesa 3-D graphics library @@ -71,6 +71,7 @@ #include "glthread.h" #include "matrix.h" #include "mem.h" +#include "mmath.h" #include "mtypes.h" #ifdef HAVE_CONFIG_H #include "conf.h" @@ -264,7 +265,7 @@ static GLint gamma_adjust( GLfloat gamma, GLint value, GLint max ) } else { double x = (double) value / (double) max; - return (GLint) ((GLfloat) max * pow( x, 1.0F/gamma ) + 0.5F); + return IROUND_POS((GLfloat) max * pow(x, 1.0F/gamma)); } } @@ -985,19 +986,19 @@ static void setup_8bit_hpcr( XMesaVisual v ) g = 1.0 / v->RedGamma; for (i=0; i<256; i++) { - GLint red = (GLint) (255.0 * pow( hpcr_rgbTbl[0][i]/255.0, g ) + 0.5); + GLint red = IROUND_POS(255.0 * pow( hpcr_rgbTbl[0][i]/255.0, g )); v->hpcr_rgbTbl[0][i] = CLAMP( red, 16, 239 ); } g = 1.0 / v->GreenGamma; for (i=0; i<256; i++) { - GLint green = (GLint) (255.0 * pow( hpcr_rgbTbl[1][i]/255.0, g ) + 0.5); + GLint green = IROUND_POS(255.0 * pow( hpcr_rgbTbl[1][i]/255.0, g )); v->hpcr_rgbTbl[1][i] = CLAMP( green, 16, 239 ); } g = 1.0 / v->BlueGamma; for (i=0; i<256; i++) { - GLint blue = (GLint) (255.0 * pow( hpcr_rgbTbl[2][i]/255.0, g ) + 0.5); + GLint blue = IROUND_POS(255.0 * pow( hpcr_rgbTbl[2][i]/255.0, g )); v->hpcr_rgbTbl[2][i] = CLAMP( blue, 32, 223 ); } v->undithered_pf = PF_HPCR; /* can't really disable dithering for now */ |