diff options
| author | Sascha Sommer <saschasommer@freenet.de> | 2007-08-23 12:11:51 +0200 |
|---|---|---|
| committer | Michel Dänzer <michel@tungstengraphics.com> | 2007-08-23 12:11:51 +0200 |
| commit | c66e5de26ae93caa368213f3cce139aacec955d2 (patch) | |
| tree | 73e124911cb9f11bf89d834b0ecc809a4b638f72 | |
| parent | 633c1fff10a3be4c9f48c1995e330d60bf6abbb2 (diff) | |
radeon: Round down RMX stretch ratios.
Fixes issues with RMX scaling, see
https://bugs.freedesktop.org/show_bug.cgi?id=8983 .
| -rw-r--r-- | src/radeon_output.c | 21 |
1 files changed, 11 insertions, 10 deletions
diff --git a/src/radeon_output.c b/src/radeon_output.c index 9650a39..940bb01 100644 --- a/src/radeon_output.c +++ b/src/radeon_output.c @@ -848,21 +848,22 @@ static void RADEONInitRMXRegisters(xf86OutputPtr output, RADEONSavePtr save, if (Hratio == 1.0 || !(mode->Flags & RADEON_USE_RMX)) { save->fp_horz_stretch |= ((xres/8-1)<<16); } else { - save->fp_horz_stretch |= ((((unsigned long)(Hratio * RADEON_HORZ_STRETCH_RATIO_MAX + - 0.5)) & RADEON_HORZ_STRETCH_RATIO_MASK) | - RADEON_HORZ_STRETCH_BLEND | - RADEON_HORZ_STRETCH_ENABLE | - ((radeon_output->PanelXRes/8-1)<<16)); + save->fp_horz_stretch |= ((((unsigned long) + (Hratio * RADEON_HORZ_STRETCH_RATIO_MAX)) & + RADEON_HORZ_STRETCH_RATIO_MASK) | + RADEON_HORZ_STRETCH_BLEND | + RADEON_HORZ_STRETCH_ENABLE | + ((radeon_output->PanelXRes/8-1)<<16)); } if (Vratio == 1.0 || !(mode->Flags & RADEON_USE_RMX)) { save->fp_vert_stretch |= ((yres-1)<<12); } else { - save->fp_vert_stretch |= ((((unsigned long)(Vratio * RADEON_VERT_STRETCH_RATIO_MAX + - 0.5)) & RADEON_VERT_STRETCH_RATIO_MASK) | - RADEON_VERT_STRETCH_ENABLE | - RADEON_VERT_STRETCH_BLEND | - ((radeon_output->PanelYRes-1)<<12)); + save->fp_vert_stretch |= ((((unsigned long)(Vratio * RADEON_VERT_STRETCH_RATIO_MAX)) & + RADEON_VERT_STRETCH_RATIO_MASK) | + RADEON_VERT_STRETCH_ENABLE | + RADEON_VERT_STRETCH_BLEND | + ((radeon_output->PanelYRes-1)<<12)); } } |