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-rw-r--r--src/gallium/include/state_tracker/st_api.h1
-rw-r--r--src/gallium/state_trackers/dri/dri_screen.c3
-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
-rw-r--r--src/mesa/main/mtypes.h5
-rw-r--r--src/mesa/state_tracker/st_extensions.c2
7 files changed, 20 insertions, 0 deletions
diff --git a/src/gallium/include/state_tracker/st_api.h b/src/gallium/include/state_tracker/st_api.h
index 9d0eb3a8a67..47d06c869c6 100644
--- a/src/gallium/include/state_tracker/st_api.h
+++ b/src/gallium/include/state_tracker/st_api.h
@@ -246,6 +246,7 @@ struct st_config_options
unsigned force_glsl_version;
boolean force_s3tc_enable;
boolean allow_glsl_extension_directive_midshader;
+ boolean allow_glsl_builtin_variable_redeclaration;
boolean allow_higher_compat_version;
boolean glsl_zero_init;
boolean force_glsl_abs_sqrt;
diff --git a/src/gallium/state_trackers/dri/dri_screen.c b/src/gallium/state_trackers/dri/dri_screen.c
index 998e8ef8cbc..fe6c491f116 100644
--- a/src/gallium/state_trackers/dri/dri_screen.c
+++ b/src/gallium/state_trackers/dri/dri_screen.c
@@ -75,6 +75,7 @@ const __DRIconfigOptionsExtension gallium_config_options = {
DRI_CONF_DISABLE_SHADER_BIT_ENCODING("false")
DRI_CONF_FORCE_GLSL_VERSION(0)
DRI_CONF_ALLOW_GLSL_EXTENSION_DIRECTIVE_MIDSHADER("false")
+ DRI_CONF_ALLOW_GLSL_BUILTIN_VARIABLE_REDECLARATION("false")
DRI_CONF_ALLOW_HIGHER_COMPAT_VERSION("false")
DRI_CONF_FORCE_GLSL_ABS_SQRT("false")
DRI_CONF_SECTION_END
@@ -108,6 +109,8 @@ dri_fill_st_options(struct dri_screen *screen)
driQueryOptionb(optionCache, "force_s3tc_enable");
options->allow_glsl_extension_directive_midshader =
driQueryOptionb(optionCache, "allow_glsl_extension_directive_midshader");
+ options->allow_glsl_builtin_variable_redeclaration =
+ driQueryOptionb(optionCache, "allow_glsl_builtin_variable_redeclaration");
options->allow_higher_compat_version =
driQueryOptionb(optionCache, "allow_higher_compat_version");
options->glsl_zero_init = driQueryOptionb(optionCache, "glsl_zero_init");
diff --git a/src/mesa/drivers/dri/common/xmlpool/t_options.h b/src/mesa/drivers/dri/common/xmlpool/t_options.h
index cd4f0252b92..ec0f3f7eaca 100644
--- a/src/mesa/drivers/dri/common/xmlpool/t_options.h
+++ b/src/mesa/drivers/dri/common/xmlpool/t_options.h
@@ -115,6 +115,11 @@ DRI_CONF_OPT_BEGIN_B(allow_glsl_extension_directive_midshader, def) \
DRI_CONF_DESC(en,gettext("Allow GLSL #extension directives in the middle of shaders")) \
DRI_CONF_OPT_END
+#define DRI_CONF_ALLOW_GLSL_BUILTIN_VARIABLE_REDECLARATION(def) \
+DRI_CONF_OPT_BEGIN_B(allow_glsl_builtin_variable_redeclaration, def) \
+ DRI_CONF_DESC(en,gettext("Allow GLSL built-in variables to be redeclared verbatim")) \
+DRI_CONF_OPT_END
+
#define DRI_CONF_ALLOW_HIGHER_COMPAT_VERSION(def) \
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")) \
diff --git a/src/mesa/drivers/dri/i965/brw_context.c b/src/mesa/drivers/dri/i965/brw_context.c
index 5055dd76a84..d3ed871618c 100644
--- a/src/mesa/drivers/dri/i965/brw_context.c
+++ b/src/mesa/drivers/dri/i965/brw_context.c
@@ -934,6 +934,9 @@ brw_process_driconf_options(struct brw_context *brw)
ctx->Const.AllowGLSLExtensionDirectiveMidShader =
driQueryOptionb(options, "allow_glsl_extension_directive_midshader");
+ ctx->Const.AllowGLSLBuiltinVariableRedeclaration =
+ driQueryOptionb(options, "allow_glsl_builtin_variable_redeclaration");
+
ctx->Const.AllowHigherCompatVersion =
driQueryOptionb(options, "allow_higher_compat_version");
diff --git a/src/mesa/drivers/dri/i965/intel_screen.c b/src/mesa/drivers/dri/i965/intel_screen.c
index 91ed128f832..9842de67423 100644
--- a/src/mesa/drivers/dri/i965/intel_screen.c
+++ b/src/mesa/drivers/dri/i965/intel_screen.c
@@ -89,6 +89,7 @@ DRI_CONF_BEGIN
DRI_CONF_DISABLE_BLEND_FUNC_EXTENDED("false")
DRI_CONF_DUAL_COLOR_BLEND_BY_LOCATION("false")
DRI_CONF_ALLOW_GLSL_EXTENSION_DIRECTIVE_MIDSHADER("false")
+ DRI_CONF_ALLOW_GLSL_BUILTIN_VARIABLE_REDECLARATION("false")
DRI_CONF_ALLOW_HIGHER_COMPAT_VERSION("false")
DRI_CONF_FORCE_GLSL_ABS_SQRT("false")
diff --git a/src/mesa/main/mtypes.h b/src/mesa/main/mtypes.h
index d47c428936c..7ac0ee36778 100644
--- a/src/mesa/main/mtypes.h
+++ b/src/mesa/main/mtypes.h
@@ -3638,6 +3638,11 @@ struct gl_constants
GLboolean AllowGLSLExtensionDirectiveMidShader;
/**
+ * Allow GLSL built-in variables to be redeclared verbatim
+ */
+ GLboolean AllowGLSLBuiltinVariableRedeclaration;
+
+ /**
* Allow creating a higher compat profile (version 3.1+) for apps that
* request it. Be careful when adding that driconf option because some
* features are unimplemented and might not work correctly.
diff --git a/src/mesa/state_tracker/st_extensions.c b/src/mesa/state_tracker/st_extensions.c
index 2fa7ba7797e..a8cd2b4e174 100644
--- a/src/mesa/state_tracker/st_extensions.c
+++ b/src/mesa/state_tracker/st_extensions.c
@@ -892,6 +892,8 @@ void st_init_extensions(struct pipe_screen *screen,
consts->ForceGLSLAbsSqrt = options->force_glsl_abs_sqrt;
+ consts->AllowGLSLBuiltinVariableRedeclaration = options->allow_glsl_builtin_variable_redeclaration;
+
consts->dri_config_options_sha1 = options->config_options_sha1;
if (consts->GLSLVersion >= 400)