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r600: Fix maximum line width 

There are only 13 bits available to store the line width, hence
it can't be larger than 8191

v2: Add Fixes tag

v3: - Unify value since for all r600 archs (Konstantin Kharlamov)
    - Correct the value the line width value is emitted as a 12.4
      fixed point value of 1/2 line width on r600-r700 and as
      8 * line width on Evergreen and newer.

Fixes: 06bfb2d28f
    r600: fork and import gallium/radeon

Signed-off-by: Gert Wollny <gert.wollny@collabora.com>
Reviewed-by: Konstantin Kharlamov <hi-angel@yandex.ru>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/merge_requests/3286>
This commit is contained in:
Gert Wollny 2019-12-28 15:35:13 +01:00 committed by Gert Wollny
parent 829107819d
commit e8559ae448
1 changed files with 1 additions and 4 deletions
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5
src/gallium/drivers/r600/r600_pipe_common.c
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@ -817,10 +817,7 @@ static float r600_get_paramf(struct pipe_screen* pscreen,
case PIPE_CAPF_MAX_LINE_WIDTH_AA:
case PIPE_CAPF_MAX_POINT_WIDTH:
case PIPE_CAPF_MAX_POINT_WIDTH_AA:
if (rscreen->family >= CHIP_CEDAR)
return 16384.0f;
else
return 8192.0f;
return 8191.0f;
case PIPE_CAPF_MAX_TEXTURE_ANISOTROPY:
return 16.0f;
case PIPE_CAPF_MAX_TEXTURE_LOD_BIAS: