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authorMarek Olšák <marek.olsak@amd.com>2017-06-20 22:44:53 +0200
committerMarek Olšák <marek.olsak@amd.com>2017-06-23 19:50:20 +0200
commit118b2008ba18d6cf5d511e0a0bacbb846aad6982 (patch)
treefa55539ece957d80882b4a814a4e77e6983bb8e6
parent6b0f6e693ba4b682679e31cc528974bbf0291e45 (diff)
st/dri: add a drirc workaround for Rocket League
This needs to be passed to gallium drivers. No game fix is planned at this time. The addition of glsl_correct_derivatives_after_discard is generally a good thing for mesa compatibility with the broader GL driver ecosystem. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=100070 Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
-rw-r--r--src/gallium/include/pipe/p_defines.h6
-rw-r--r--src/gallium/state_trackers/dri/dri_screen.c5
-rw-r--r--src/mesa/drivers/dri/common/drirc4
-rw-r--r--src/mesa/drivers/dri/common/xmlpool/t_options.h4
4 files changed, 19 insertions, 0 deletions
diff --git a/src/gallium/include/pipe/p_defines.h b/src/gallium/include/pipe/p_defines.h
index b195af44399..2ccdf44bfe2 100644
--- a/src/gallium/include/pipe/p_defines.h
+++ b/src/gallium/include/pipe/p_defines.h
@@ -390,6 +390,12 @@ enum pipe_flush_flags
*/
#define PIPE_CONTEXT_PREFER_THREADED (1 << 3)
+/**
+ * Implicit and explicit derivatives after KILL behave as if KILL didn't
+ * happen.
+ */
+#define PIPE_SCREEN_ENABLE_CORRECT_TGSI_DERIVATIVES_AFTER_KILL (1 << 0)
+
/**
* Flags for pipe_context::memory_barrier.
diff --git a/src/gallium/state_trackers/dri/dri_screen.c b/src/gallium/state_trackers/dri/dri_screen.c
index 1b414b28d1a..aa215b09a2d 100644
--- a/src/gallium/state_trackers/dri/dri_screen.c
+++ b/src/gallium/state_trackers/dri/dri_screen.c
@@ -80,6 +80,7 @@ const __DRIconfigOptionsExtension gallium_config_options = {
DRI_CONF_ALLOW_GLSL_BUILTIN_VARIABLE_REDECLARATION("false")
DRI_CONF_ALLOW_HIGHER_COMPAT_VERSION("false")
DRI_CONF_FORCE_GLSL_ABS_SQRT("false")
+ DRI_CONF_GLSL_CORRECT_DERIVATIVES_AFTER_DISCARD("false")
DRI_CONF_SECTION_END
DRI_CONF_SECTION_MISCELLANEOUS
@@ -473,6 +474,10 @@ dri_init_options_get_screen_flags(struct dri_screen *screen,
driver_name);
dri_fill_st_options(screen);
+ if (driQueryOptionb(&screen->optionCache,
+ "glsl_correct_derivatives_after_discard"))
+ flags |= PIPE_SCREEN_ENABLE_CORRECT_TGSI_DERIVATIVES_AFTER_KILL;
+
return flags;
}
diff --git a/src/mesa/drivers/dri/common/drirc b/src/mesa/drivers/dri/common/drirc
index 5152b207ebe..7d73b1218b5 100644
--- a/src/mesa/drivers/dri/common/drirc
+++ b/src/mesa/drivers/dri/common/drirc
@@ -151,6 +151,10 @@ TODO: document the other workarounds.
<application name="Kerbal Space Program (64-bit)" executable="KSP.x86_64">
<option name="glsl_zero_init" value="true"/>
</application>
+
+ <application name="Rocket League" executable="RocketLeague">
+ <option name="glsl_correct_derivatives_after_discard" value="true"/>
+ </application>
</device>
<!-- vmwgfx doesn't like full buffer swaps and can't sync to vertical retraces.-->
<device driver="vmwgfx">
diff --git a/src/mesa/drivers/dri/common/xmlpool/t_options.h b/src/mesa/drivers/dri/common/xmlpool/t_options.h
index 8a7d04f00ff..9aa1798b9d9 100644
--- a/src/mesa/drivers/dri/common/xmlpool/t_options.h
+++ b/src/mesa/drivers/dri/common/xmlpool/t_options.h
@@ -130,6 +130,10 @@ DRI_CONF_OPT_BEGIN_B(force_glsl_abs_sqrt, def) \
DRI_CONF_DESC(en,gettext("Force computing the absolute value for sqrt() and inversesqrt()")) \
DRI_CONF_OPT_END
+#define DRI_CONF_GLSL_CORRECT_DERIVATIVES_AFTER_DISCARD(def) \
+DRI_CONF_OPT_BEGIN_B(glsl_correct_derivatives_after_discard, def) \
+ DRI_CONF_DESC(en,gettext("Implicit and explicit derivatives after a discard behave as if the discard didn't happen")) \
+DRI_CONF_OPT_END
/**