[Mesa-dev] [PATCH] drirc: Disable ARB_blend_func_extended for Heaven 4.0/Valley 1.0.

[Kenneth Graunke]

Unigine Heaven 4.0 and Valley 1.0 use dual color blending but don't
specify which fragment shader output is which, so there's at best a
50/50 chance of us guessing it correctly.  This is invalid.

Unigine fixed this in 4.1 and 1.1 versions over a year and a half ago,
but hasn't actually released them for whatever reason.  So, add the
workaround back so that it works for most people.

Fixes Heaven 4.0/Valley 1.0 rendering on Ivybridge.  For whatever
reason, Broadwell worked.  4.1 and 1.1 have always worked.

Signed-off-by: Kenneth Graunke <kenneth at whitecape.org>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=92233
Cc: mesa-stable at lists.freedesktop.org
Cc: Marek Olšák <marek.olsak at amd.com>
---
 src/mesa/drivers/dri/common/drirc | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/src/mesa/drivers/dri/common/drirc b/src/mesa/drivers/dri/common/drirc
index bb840ea..e1874c3 100644
--- a/src/mesa/drivers/dri/common/drirc
+++ b/src/mesa/drivers/dri/common/drirc
@@ -37,18 +37,26 @@ TODO: document the other workarounds.
 
         <application name="Unigine Heaven (32-bit)" executable="heaven_x86">
             <option name="allow_glsl_extension_directive_midshader" value="true" />
+            <!-- remove disable_blend_func_extended if 4.1 ever comes out -->
+            <option name="disable_blend_func_extended" value="true" />
 	</application>
 
         <application name="Unigine Heaven (64-bit)" executable="heaven_x64">
             <option name="allow_glsl_extension_directive_midshader" value="true" />
+            <!-- remove disable_blend_func_extended if 4.1 ever comes out -->
+            <option name="disable_blend_func_extended" value="true" />
 	</application>
 
         <application name="Unigine Valley (32-bit)" executable="valley_x86">
             <option name="allow_glsl_extension_directive_midshader" value="true" />
+            <!-- remove disable_blend_func_extended if 1.1 ever comes out -->
+            <option name="disable_blend_func_extended" value="true" />
 	</application>
 
         <application name="Unigine Valley (64-bit)" executable="valley_x64">
             <option name="allow_glsl_extension_directive_midshader" value="true" />
+            <!-- remove disable_blend_func_extended if 1.1 ever comes out -->
+            <option name="disable_blend_func_extended" value="true" />
 	</application>
 
         <application name="Unigine OilRush (32-bit)" executable="OilRush_x86">
-- 
2.5.1