[Mesa-dev] [PATCH 5/5] radeonsi: fix polygon offset scale

Marek Olšák maraeo at gmail.com
Tue Aug 11 16:02:45 PDT 2015


From: Marek Olšák <marek.olsak at amd.com>

The value was copied from r300g, which uses 1/12 subpixels, but this hw
uses 1/16 subpixels.

Fixes piglit: gl-1.4-polygon-offset (formerly a glean test)
---
 src/gallium/drivers/radeonsi/si_state.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/gallium/drivers/radeonsi/si_state.c b/src/gallium/drivers/radeonsi/si_state.c
index c628288..d768305 100644
--- a/src/gallium/drivers/radeonsi/si_state.c
+++ b/src/gallium/drivers/radeonsi/si_state.c
@@ -666,7 +666,7 @@ static void *si_create_rs_state(struct pipe_context *ctx,
 
 	/* offset */
 	rs->offset_units = state->offset_units;
-	rs->offset_scale = state->offset_scale * 12.0f;
+	rs->offset_scale = state->offset_scale * 16.0f;
 
 	si_pm4_set_reg(pm4, R_0286D4_SPI_INTERP_CONTROL_0,
 		S_0286D4_FLAT_SHADE_ENA(1) |
-- 
2.1.4



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