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-rw-r--r--src/mesa/drivers/dri/common/xmlpool/t_options.h5
-rw-r--r--src/mesa/drivers/dri/i965/brw_context.c3
-rw-r--r--src/mesa/drivers/dri/i965/intel_screen.c1
3 files changed, 9 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/common/xmlpool/t_options.h b/src/mesa/drivers/dri/common/xmlpool/t_options.h
index c7c658d0aac..cd4f0252b92 100644
--- a/src/mesa/drivers/dri/common/xmlpool/t_options.h
+++ b/src/mesa/drivers/dri/common/xmlpool/t_options.h
@@ -120,6 +120,11 @@ DRI_CONF_OPT_BEGIN_B(allow_higher_compat_version, def) \
DRI_CONF_DESC(en,gettext("Allow a higher compat profile (version 3.1+) for apps that request it")) \
DRI_CONF_OPT_END
+#define DRI_CONF_FORCE_GLSL_ABS_SQRT(def) \
+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
+
/**
diff --git a/src/mesa/drivers/dri/i965/brw_context.c b/src/mesa/drivers/dri/i965/brw_context.c
index 648ae508145..624abe6d523 100644
--- a/src/mesa/drivers/dri/i965/brw_context.c
+++ b/src/mesa/drivers/dri/i965/brw_context.c
@@ -937,6 +937,9 @@ brw_process_driconf_options(struct brw_context *brw)
ctx->Const.AllowHigherCompatVersion =
driQueryOptionb(options, "allow_higher_compat_version");
+ ctx->Const.ForceGLSLAbsSqrt =
+ driQueryOptionb(options, "force_glsl_abs_sqrt");
+
ctx->Const.GLSLZeroInit = driQueryOptionb(options, "glsl_zero_init");
brw->dual_color_blend_by_location =
diff --git a/src/mesa/drivers/dri/i965/intel_screen.c b/src/mesa/drivers/dri/i965/intel_screen.c
index a35cf69eede..c7f111d04af 100644
--- a/src/mesa/drivers/dri/i965/intel_screen.c
+++ b/src/mesa/drivers/dri/i965/intel_screen.c
@@ -90,6 +90,7 @@ DRI_CONF_BEGIN
DRI_CONF_DUAL_COLOR_BLEND_BY_LOCATION("false")
DRI_CONF_ALLOW_GLSL_EXTENSION_DIRECTIVE_MIDSHADER("false")
DRI_CONF_ALLOW_HIGHER_COMPAT_VERSION("false")
+ DRI_CONF_FORCE_GLSL_ABS_SQRT("false")
DRI_CONF_OPT_BEGIN_B(shader_precompile, "true")
DRI_CONF_DESC(en, "Perform code generation at shader link time.")