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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>
This commit is contained in:
Marek Olšák 2017-06-20 22:44:53 +02:00
parent 6b0f6e693b
commit 118b2008ba
4 changed files with 19 additions and 0 deletions
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6
src/gallium/include/pipe/p_defines.h
View File

@ -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.

5
src/gallium/state_trackers/dri/dri_screen.c
View File

@ -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;
}

4
src/mesa/drivers/dri/common/drirc
View File

@ -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">

4
src/mesa/drivers/dri/common/xmlpool/t_options.h
View File

@ -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
/**