From: Marek Olšák Date: Thu, 18 Oct 2018 18:42:42 +0000 (-0400) Subject: radeonsi: fix incorrect hw screen offset and guardband computation X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=6cc79e4411f;p=mesa.git radeonsi: fix incorrect hw screen offset and guardband computation It resulted in assertion failures or incorrect rendering. Broken by: 9e182b8313c5ab952498a76495f57e8420f9e5ad --- diff --git a/src/gallium/drivers/radeonsi/si_state_viewport.c b/src/gallium/drivers/radeonsi/si_state_viewport.c index 587422e50ca..b7fcd5bdb82 100644 --- a/src/gallium/drivers/radeonsi/si_state_viewport.c +++ b/src/gallium/drivers/radeonsi/si_state_viewport.c @@ -176,8 +176,8 @@ static void si_emit_guardband(struct si_context *ctx) /* Determine the optimal hardware screen offset to center the viewport * within the viewport range in order to maximize the guardband size. */ - int hw_screen_offset_x = (vp_as_scissor.maxx - vp_as_scissor.minx) / 2; - int hw_screen_offset_y = (vp_as_scissor.maxy - vp_as_scissor.miny) / 2; + int hw_screen_offset_x = (vp_as_scissor.maxx + vp_as_scissor.minx) / 2; + int hw_screen_offset_y = (vp_as_scissor.maxy + vp_as_scissor.miny) / 2; const unsigned hw_screen_offset_max = 8176; /* SI-CI need to align the offset to an ubertile consisting of all SEs. */