[Mesa-dev] [PATCH 2/2] r600g: use SIMPLE_FLOAT for blending to avoid NaNs in RTs

[Ilia Mirkin]

Radeonsi also sets this flag.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=103544
Signed-off-by: Ilia Mirkin <imirkin at alum.mit.edu>
---

This needs testing with the fbo-float-nan piglit that was recently added. Just
guessing that this is the right flag to set here.

 src/gallium/drivers/r600/evergreen_state.c | 1 +
 src/gallium/drivers/r600/r600_state.c      | 1 +
 2 files changed, 2 insertions(+)

diff --git a/src/gallium/drivers/r600/evergreen_state.c b/src/gallium/drivers/r600/evergreen_state.c
index 96eb35a9818..131778dea9f 100644
--- a/src/gallium/drivers/r600/evergreen_state.c
+++ b/src/gallium/drivers/r600/evergreen_state.c
@@ -1211,6 +1211,7 @@ static void evergreen_set_color_surface_common(struct r600_context *rctx,
 		S_028C70_COMP_SWAP(swap) |
 		S_028C70_BLEND_CLAMP(blend_clamp) |
 		S_028C70_BLEND_BYPASS(blend_bypass) |
+		S_028C70_SIMPLE_FLOAT(1) |
 		S_028C70_NUMBER_TYPE(ntype) |
 		S_028C70_ENDIAN(endian);
 
diff --git a/src/gallium/drivers/r600/r600_state.c b/src/gallium/drivers/r600/r600_state.c
index c21e8dabb1f..0c331537460 100644
--- a/src/gallium/drivers/r600/r600_state.c
+++ b/src/gallium/drivers/r600/r600_state.c
@@ -898,6 +898,7 @@ static void r600_init_color_surface(struct r600_context *rctx,
 		S_0280A0_COMP_SWAP(swap) |
 		S_0280A0_BLEND_BYPASS(blend_bypass) |
 		S_0280A0_BLEND_CLAMP(blend_clamp) |
+		S_0280A0_SIMPLE_FLOAT(1) |
 		S_0280A0_NUMBER_TYPE(ntype) |
 		S_0280A0_ENDIAN(endian);
 
-- 
2.13.6