radeonsi: set CB_COLORn_INFO.ROUND_MODE

just do what the register spec says

Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Edward O'Callaghan <funfunctor@folklore1984.net>

diff --git a/src/gallium/drivers/radeonsi/si_state.c b/src/gallium/drivers/radeonsi/si_state.c
index ebd2b7d..94dbe4c 100644 (file)
--- a/src/gallium/drivers/radeonsi/si_state.c
+++ b/src/gallium/drivers/radeonsi/si_state.c
@@ -2067,6 +2067,11 @@ static void si_initialize_color_surface(struct si_context *sctx,
                S_028C70_BLEND_CLAMP(blend_clamp) |
                S_028C70_BLEND_BYPASS(blend_bypass) |
                S_028C70_SIMPLE_FLOAT(1) |
+               S_028C70_ROUND_MODE(ntype != V_028C70_NUMBER_UNORM &&
+                                   ntype != V_028C70_NUMBER_SNORM &&
+                                   ntype != V_028C70_NUMBER_SRGB &&
+                                   format != V_028C70_COLOR_8_24 &&
+                                   format != V_028C70_COLOR_24_8) |
                S_028C70_NUMBER_TYPE(ntype) |
                S_028C70_ENDIAN(endian);