Mesa (master): swr: disable blending for integer formats

[Ilia Mirkin]

Module: Mesa
Branch: master
Commit: 7caed50ff4224b0966bae7628cf99f8163cac4dc
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=7caed50ff4224b0966bae7628cf99f8163cac4dc

Author: Ilia Mirkin <imirkin at alum.mit.edu>
Date:   Sat Nov 12 13:27:28 2016 -0500

swr: disable blending for integer formats

The EXT_texture_integer test says that blending and alphatest should
all be disabled. st/mesa takes care of alphatest already.

Fixes the ext_texture_integer-fbo-blending piglit test.

Signed-off-by: Ilia Mirkin <imirkin at alum.mit.edu>
Reviewed-by: Bruce Cherniak <bruce.cherniak at intel.com>

---

 src/gallium/drivers/swr/swr_state.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/gallium/drivers/swr/swr_state.cpp b/src/gallium/drivers/swr/swr_state.cpp
index 526d7e7..783afba 100644
--- a/src/gallium/drivers/swr/swr_state.cpp
+++ b/src/gallium/drivers/swr/swr_state.cpp
@@ -1318,6 +1318,9 @@ swr_update_derived(struct pipe_context *pipe,
                compileState.blendState.logicOpEnable = false;
             }
 
+            if (info.type[0] == SWR_TYPE_SINT || info.type[0] == SWR_TYPE_UINT)
+               compileState.blendState.blendEnable = false;
+
             if (compileState.blendState.blendEnable == false &&
                 compileState.blendState.logicOpEnable == false &&
                 ctx->depth_stencil->alpha.enabled == 0) {