From c66e5de26ae93caa368213f3cce139aacec955d2 Mon Sep 17 00:00:00 2001 From: Sascha Sommer Date: Thu, 23 Aug 2007 12:11:51 +0200 Subject: radeon: Round down RMX stretch ratios. Fixes issues with RMX scaling, see https://bugs.freedesktop.org/show_bug.cgi?id=8983 . --- src/radeon_output.c | 21 +++++++++++---------- 1 file 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)); } } -- cgit v1.2.3