mesa,glsl,st/dri: add a new driconf option force_glsl_version for Unigine

See documentation in mtypes.h.

Reviewed-by: Kenneth Graunke <[email protected]>
Reviewed-by: Brian Paul <[email protected]>
Reviewed-by: Ian Romanick <[email protected]>

2 files changed, 39 insertions, 0 deletions

diff --git a/src/mesa/drivers/dri/common/drirc b/src/mesa/drivers/dri/common/drirc
index 7c2d3ba8f0a..b5430eda5db 100644
--- a/src/mesa/drivers/dri/common/drirc
+++ b/src/mesa/drivers/dri/common/drirc
@@ -1,3 +1,27 @@
+<!--
+
+============================================
+Application bugs worked around in this file:
+============================================
+
+* Various Unigine products don't use the #version and #extension GLSL
+  directives, meaning they only get GLSL 1.10 and no extensions for their
+  shaders.
+  Enabling all extensions for Unigine fixes most issues, but the GLSL version
+  is still 1.10.
+
+* Unigine Heaven 3.0 with ARB_texture_multisample uses a "ivec4 * vec4"
+  expression, which fails to compile with GLSL 1.10.
+  Adding "#version 130" fixes this.
+
+* Unigine Heaven 3.0 with ARB_shader_bit_encoding uses the uint keyword, which
+  fails to compile with GLSL 1.10.
+  Adding "#version 130" fixes this.
+
+TODO: document the other workarounds.
+
+-->
+
 <driconf>
     <!-- Please always enable app-specific workarounds for all drivers and
          screens. -->
@@ -6,30 +30,40 @@
             <option name="force_glsl_extensions_warn" value="true" />
             <option name="disable_blend_func_extended" value="true" />
 	</application>
+
         <application name="Unigine Tropics" executable="Tropics">
             <option name="force_glsl_extensions_warn" value="true" />
             <option name="disable_blend_func_extended" value="true" />
 	</application>
+
         <application name="Unigine Heaven (32-bit)" executable="heaven_x86">
             <option name="force_glsl_extensions_warn" value="true" />
             <option name="disable_blend_func_extended" value="true" />
+            <option name="force_glsl_version" value="130" />
 	</application>
+
         <application name="Unigine Heaven (64-bit)" executable="heaven_x64">
             <option name="force_glsl_extensions_warn" value="true" />
             <option name="disable_blend_func_extended" value="true" />
+            <option name="force_glsl_version" value="130" />
 	</application>
+
         <application name="Unigine OilRush (32-bit)" executable="OilRush_x86">
             <option name="disable_blend_func_extended" value="true" />
 	</application>
+
         <application name="Unigine OilRush (64-bit)" executable="OilRush_x64">
             <option name="disable_blend_func_extended" value="true" />
 	</application>
+
         <application name="Savage 2" executable="savage2.bin">
             <option name="disable_glsl_line_continuations" value="true" />
         </application>
+
         <application name="Topogun (32-bit)" executable="topogun32">
             <option name="always_have_depth_buffer" value="true" />
         </application>
+
         <application name="Topogun (64-bit)" executable="topogun64">
             <option name="always_have_depth_buffer" value="true" />
         </application>
diff --git a/src/mesa/drivers/dri/common/xmlpool/t_options.h b/src/mesa/drivers/dri/common/xmlpool/t_options.h
index 5b0f9611588..a4e7eb1b0f7 100644
--- a/src/mesa/drivers/dri/common/xmlpool/t_options.h
+++ b/src/mesa/drivers/dri/common/xmlpool/t_options.h
@@ -95,6 +95,11 @@ DRI_CONF_OPT_BEGIN_B(disable_glsl_line_continuations, def) \
         DRI_CONF_DESC(en,gettext("Disable backslash-based line continuations in GLSL source")) \
 DRI_CONF_OPT_END
 
+#define DRI_CONF_FORCE_GLSL_VERSION(def) \
+DRI_CONF_OPT_BEGIN_V(force_glsl_version, int, def, "0:999") \
+        DRI_CONF_DESC(en,gettext("Force a default GLSL version for shaders that lack an explicit #version line")) \
+DRI_CONF_OPT_END
+
 
 
 /**