Setting bilinear_filter flag in case of multisample blits with
GL_LINEAR filter causes incorrect behavior in translate_dst_to_src()
function. This broke Modern Warfare (1, 2 and 3) on SNB, IVB and HSW.
Tested on SNB and IVB, no Piglit regressions. Trace file of the game
(taken with apitrace) works fine with this patch.
Cc: mesa-sta...@lists.freedesktop.org
Signed-off-by: Anuj Phogat <anuj.pho...@gmail.com>
Reported-by: Armin K <kre...@email.com>
---
src/mesa/drivers/dri/i965/brw_blorp_blit.cpp | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/src/mesa/drivers/dri/i965/brw_blorp_blit.cpp
b/src/mesa/drivers/dri/i965/brw_blorp_blit.cpp
index 2b94e2d..7e436f7 100644
--- a/src/mesa/drivers/dri/i965/brw_blorp_blit.cpp
+++ b/src/mesa/drivers/dri/i965/brw_blorp_blit.cpp
@@ -2171,7 +2171,7 @@ brw_blorp_blit_params::brw_blorp_blit_params(struct
brw_context *brw,
wm_prog_key.x_scale = 2.0;
wm_prog_key.y_scale = src_mt->num_samples / 2.0;
- if (filter == GL_LINEAR)
+ if (filter == GL_LINEAR && src.num_samples <= 1 && dst.num_samples <= 1)
wm_prog_key.bilinear_filter = true;
/* The render path must be configured to use the same number of samples as
--
1.8.1.4
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