fontconfig libX11 xserver mkfontscale mesa git update 11 July 2014

xserver          commit 9de3cc8daa4c6e877d30a0e8ccfe0cc159f1dbe3
libX11           commit ff9a5c199251a84fa59d14fd48dadb3f8920b54b
mkfontscale      commit 47908fd7a0d061fdcd21e3498da4e223ca9136d9
fontconfig       commit dca5d0feee5eb6428bec48b1aff4396cf92c76c0
mesa             commit f381c27c548aa28b003c8e188f5d627ab4105f76

25 files changed, 289 insertions, 178 deletions

diff --git a/mesalib/src/gallium/Automake.inc b/mesalib/src/gallium/Automake.inc
index e70a1363e..73d65a4d1 100644
--- a/mesalib/src/gallium/Automake.inc
+++ b/mesalib/src/gallium/Automake.inc
@@ -26,19 +26,6 @@ GALLIUM_DRIVER_CXXFLAGS = \
 	$(DEFINES) \
 	$(VISIBILITY_CXXFLAGS)
 
-GALLIUM_DRI_CFLAGS = \
-	-I$(top_srcdir)/include \
-	-I$(top_srcdir)/src/gallium/include \
-	-I$(top_srcdir)/src/gallium/auxiliary \
-	-I$(top_srcdir)/src/gallium/drivers \
-	-I$(top_srcdir)/src/gallium/winsys \
-	-I$(top_srcdir)/src/mesa \
-	-I$(top_srcdir)/src/mapi \
-	$(DEFINES) \
-	$(PTHREAD_CFLAGS) \
-	$(LIBDRM_CFLAGS) \
-	$(VISIBILITY_CFLAGS)
-
 GALLIUM_TARGET_CFLAGS = \
 	-I$(top_srcdir)/include \
 	-I$(top_srcdir)/src/loader \
@@ -51,35 +38,12 @@ GALLIUM_TARGET_CFLAGS = \
 	$(LIBDRM_CFLAGS) \
 	$(VISIBILITY_CFLAGS)
 
-
-GALLIUM_DRI_LINKER_FLAGS = \
-	-shared \
-	-shrext .so \
-	-module \
-	-avoid-version \
-	$(GC_SECTIONS)
-
-if HAVE_LD_VERSION_SCRIPT
-GALLIUM_DRI_LINKER_FLAGS += \
-	-Wl,--version-script=$(top_srcdir)/src/gallium/targets/dri/dri.sym
-
-endif
-
-
 GALLIUM_COMMON_LIB_DEPS = \
 	-lm \
 	$(CLOCK_LIB) \
 	$(PTHREAD_LIBS) \
 	$(DLOPEN_LIBS)
 
-GALLIUM_DRI_LIB_DEPS = \
-	$(top_builddir)/src/mesa/libmesagallium.la \
-	$(top_builddir)/src/gallium/auxiliary/libgallium.la \
-	$(SELINUX_LIBS) \
-	$(LIBDRM_LIBS) \
-	$(EXPAT_LIBS) \
-	$(GALLIUM_COMMON_LIB_DEPS)
-
 GALLIUM_WINSYS_CFLAGS = \
 	-I$(top_srcdir)/include \
 	-I$(top_srcdir)/src/gallium/include \
@@ -87,11 +51,6 @@ GALLIUM_WINSYS_CFLAGS = \
 	$(DEFINES) \
 	$(VISIBILITY_CFLAGS)
 
-if HAVE_MESA_LLVM
-GALLIUM_DRI_LINKER_FLAGS += $(LLVM_LDFLAGS)
-GALLIUM_DRI_LIB_DEPS += $(LLVM_LIBS)
-endif
-
 
 GALLIUM_PIPE_LOADER_WINSYS_LIBS = \
 	$(top_builddir)/src/gallium/winsys/sw/null/libws_null.la
diff --git a/mesalib/src/gallium/SConscript b/mesalib/src/gallium/SConscript
index df71b9aea..8d9849e00 100644
--- a/mesalib/src/gallium/SConscript
+++ b/mesalib/src/gallium/SConscript
@@ -107,7 +107,6 @@ if not env['embedded']:
 
     if env['dri']:
         SConscript([
-            'targets/dri-swrast/SConscript',
             'targets/dri/SConscript',
         ])
 
diff --git a/mesalib/src/gallium/auxiliary/util/u_blitter.c b/mesalib/src/gallium/auxiliary/util/u_blitter.c
index db0d1b894..20fbd80d5 100644
--- a/mesalib/src/gallium/auxiliary/util/u_blitter.c
+++ b/mesalib/src/gallium/auxiliary/util/u_blitter.c
@@ -383,6 +383,15 @@ void util_blitter_destroy(struct blitter_context *blitter)
       if (ctx->fs_texfetch_stencil[i])
          ctx->delete_fs_state(pipe, ctx->fs_texfetch_stencil[i]);
 
+      if (ctx->fs_texfetch_col_msaa[i])
+         ctx->delete_fs_state(pipe, ctx->fs_texfetch_col_msaa[i]);
+      if (ctx->fs_texfetch_depth_msaa[i])
+         ctx->delete_fs_state(pipe, ctx->fs_texfetch_depth_msaa[i]);
+      if (ctx->fs_texfetch_depthstencil_msaa[i])
+         ctx->delete_fs_state(pipe, ctx->fs_texfetch_depthstencil_msaa[i]);
+      if (ctx->fs_texfetch_stencil_msaa[i])
+         ctx->delete_fs_state(pipe, ctx->fs_texfetch_stencil_msaa[i]);
+
       for (j = 0; j< Elements(ctx->fs_resolve[i]); j++)
          for (f = 0; f < 2; f++)
             if (ctx->fs_resolve[i][j][f])
diff --git a/mesalib/src/gallium/auxiliary/util/u_transfer.c b/mesalib/src/gallium/auxiliary/util/u_transfer.c
index 7804f2a82..71da35d6d 100644
--- a/mesalib/src/gallium/auxiliary/util/u_transfer.c
+++ b/mesalib/src/gallium/auxiliary/util/u_transfer.c
@@ -25,8 +25,8 @@ void u_default_transfer_inline_write( struct pipe_context *pipe,
    usage |= PIPE_TRANSFER_WRITE;
 
    /* transfer_inline_write implicitly discards the rewritten buffer range */
-   /* XXX this looks very broken for non-buffer resources having more than one dim. */
-   if (box->x == 0 && box->width == resource->width0) {
+   if (resource->target == PIPE_BUFFER &&
+       box->x == 0 && box->width == resource->width0) {
       usage |= PIPE_TRANSFER_DISCARD_WHOLE_RESOURCE;
    } else {
       usage |= PIPE_TRANSFER_DISCARD_RANGE;
diff --git a/mesalib/src/glsl/ast_type.cpp b/mesalib/src/glsl/ast_type.cpp
index de4c1a410..b596cd59e 100644
--- a/mesalib/src/glsl/ast_type.cpp
+++ b/mesalib/src/glsl/ast_type.cpp
@@ -168,6 +168,16 @@ ast_type_qualifier::merge_qualifier(YYLTYPE *loc,
       this->max_vertices = q.max_vertices;
    }
 
+   if (q.flags.q.invocations) {
+      if (this->flags.q.invocations && this->invocations != q.invocations) {
+         _mesa_glsl_error(loc, state,
+                          "geometry shader set conflicting invocations "
+                          "(%d and %d)", this->invocations, q.invocations);
+         return false;
+      }
+      this->invocations = q.invocations;
+   }
+
    if (state->stage == MESA_SHADER_GEOMETRY &&
        state->has_explicit_attrib_stream()) {
       if (q.flags.q.stream && q.stream >= state->ctx->Const.MaxVertexStreams) {
diff --git a/mesalib/src/glsl/glcpp/glcpp-lex.l b/mesalib/src/glsl/glcpp/glcpp-lex.l
index 188e45466..a1a8e76af 100644
--- a/mesalib/src/glsl/glcpp/glcpp-lex.l
+++ b/mesalib/src/glsl/glcpp/glcpp-lex.l
@@ -76,6 +76,7 @@ NEWLINE		[\n]
 HSPACE		[ \t]
 HASH		^{HSPACE}*#{HSPACE}*
 IDENTIFIER	[_a-zA-Z][_a-zA-Z0-9]*
+PP_NUMBER	[.]?[0-9]([._a-zA-Z0-9]|[eEpP][-+])*
 PUNCTUATION	[][(){}.&*~!/%<>^|;,=+-]
 
 /* The OTHER class is simply a catch-all for things that the CPP
@@ -137,14 +138,15 @@ HEXADECIMAL_INTEGER	0[xX][0-9a-fA-F]+[uU]?
 	 *	2. The skip_stack is NULL meaning that we've reached
 	 *	   the last #endif.
 	 *
-	 *	3. The lexing_if bit is set. This indicates that we
-	 *	   are lexing the expression following an "#if" of
-	 *	   "#elif". Even inside an "#if 0" we need to lex this
-	 *	   expression so the parser can correctly update the
-	 *	   skip_stack state.
+	 *	3. The lexing_directive bit is set. This indicates that we are
+	 *	   lexing a pre-processor directive, (such as #if, #elif, or
+	 *	   #else). For the #if and #elif directives we always need to
+	 *	   parse the conditions, (even if otherwise within an #if
+	 *	   0). And for #else, we want to be able to generate an error
+	 *	   if any garbage follows #else.
 	 */
 	if (YY_START == INITIAL || YY_START == SKIP) {
-		if (parser->lexing_if ||
+		if (parser->lexing_directive ||
 		    parser->skip_stack == NULL ||
 		    parser->skip_stack->type == SKIP_NO_SKIP)
 		{
@@ -178,7 +180,7 @@ HEXADECIMAL_INTEGER	0[xX][0-9a-fA-F]+[uU]?
 
 	/* glcpp doesn't handle #extension, #version, or #pragma directives.
 	 * Simply pass them through to the main compiler's lexer/parser. */
-{HASH}(extension|pragma)[^\n]+ {
+{HASH}(extension|pragma)[^\n]* {
 	if (parser->commented_newlines)
 		BEGIN NEWLINE_CATCHUP;
 	yylval->str = ralloc_strdup (yyextra, yytext);
@@ -193,25 +195,25 @@ HEXADECIMAL_INTEGER	0[xX][0-9a-fA-F]+[uU]?
 
 <SKIP,INITIAL>{
 {HASH}ifdef {
-	yyextra->lexing_if = 1;
+	yyextra->lexing_directive = 1;
 	yyextra->space_tokens = 0;
 	return HASH_IFDEF;
 }
 
 {HASH}ifndef {
-	yyextra->lexing_if = 1;
+	yyextra->lexing_directive = 1;
 	yyextra->space_tokens = 0;
 	return HASH_IFNDEF;
 }
 
 {HASH}if/[^_a-zA-Z0-9] {
-	yyextra->lexing_if = 1;
+	yyextra->lexing_directive = 1;
 	yyextra->space_tokens = 0;
 	return HASH_IF;
 }
 
 {HASH}elif/[^_a-zA-Z0-9] {
-	yyextra->lexing_if = 1;
+	yyextra->lexing_directive = 1;
 	yyextra->space_tokens = 0;
 	return HASH_ELIF;
 }
@@ -329,6 +331,11 @@ HEXADECIMAL_INTEGER	0[xX][0-9a-fA-F]+[uU]?
 	return IDENTIFIER;
 }
 
+{PP_NUMBER} {
+	yylval->str = ralloc_strdup (yyextra, yytext);
+	return OTHER;
+}
+
 {PUNCTUATION} {
 	return yytext[0];
 }
@@ -348,7 +355,7 @@ HEXADECIMAL_INTEGER	0[xX][0-9a-fA-F]+[uU]?
 	if (parser->commented_newlines) {
 		BEGIN NEWLINE_CATCHUP;
 	}
-	yyextra->lexing_if = 0;
+	yyextra->lexing_directive = 0;
 	yylineno++;
 	yycolumn = 0;
 	return NEWLINE;
@@ -357,7 +364,7 @@ HEXADECIMAL_INTEGER	0[xX][0-9a-fA-F]+[uU]?
 	/* Handle missing newline at EOF. */
 <INITIAL><<EOF>> {
 	BEGIN DONE; /* Don't keep matching this rule forever. */
-	yyextra->lexing_if = 0;
+	yyextra->lexing_directive = 0;
 	return NEWLINE;
 }
 
diff --git a/mesalib/src/glsl/glcpp/glcpp-parse.y b/mesalib/src/glsl/glcpp/glcpp-parse.y
index ccf810559..084078eb0 100644
--- a/mesalib/src/glsl/glcpp/glcpp-parse.y
+++ b/mesalib/src/glsl/glcpp/glcpp-parse.y
@@ -166,7 +166,8 @@ add_builtin_define(glcpp_parser_t *parser, const char *name, int value);
 %expect 0
 %token COMMA_FINAL DEFINED ELIF_EXPANDED HASH HASH_DEFINE FUNC_IDENTIFIER OBJ_IDENTIFIER HASH_ELIF HASH_ELSE HASH_ENDIF HASH_IF HASH_IFDEF HASH_IFNDEF HASH_LINE HASH_UNDEF HASH_VERSION IDENTIFIER IF_EXPANDED INTEGER INTEGER_STRING LINE_EXPANDED NEWLINE OTHER PLACEHOLDER SPACE
 %token PASTE
-%type <ival> expression INTEGER operator SPACE integer_constant
+%type <ival> INTEGER operator SPACE integer_constant
+%type <expression_value> expression
 %type <str> IDENTIFIER FUNC_IDENTIFIER OBJ_IDENTIFIER INTEGER_STRING OTHER
 %type <string_list> identifier_list
 %type <token> preprocessing_token conditional_token
@@ -216,10 +217,14 @@ line:
 
 expanded_line:
 	IF_EXPANDED expression NEWLINE {
-		_glcpp_parser_skip_stack_push_if (parser, & @1, $2);
+		if (parser->is_gles && $2.undefined_macro)
+			glcpp_error(& @1, parser, "undefined macro %s in expression (illegal in GLES)", $2.undefined_macro);
+		_glcpp_parser_skip_stack_push_if (parser, & @1, $2.value);
 	}
 |	ELIF_EXPANDED expression NEWLINE {
-		_glcpp_parser_skip_stack_change_if (parser, & @1, "elif", $2);
+		if (parser->is_gles && $2.undefined_macro)
+			glcpp_error(& @1, parser, "undefined macro %s in expression (illegal in GLES)", $2.undefined_macro);
+		_glcpp_parser_skip_stack_change_if (parser, & @1, "elif", $2.value);
 	}
 |	LINE_EXPANDED integer_constant NEWLINE {
 		parser->has_new_line_number = 1;
@@ -260,7 +265,14 @@ control_line:
 |	HASH_UNDEF {
 		glcpp_parser_resolve_implicit_version(parser);
 	} IDENTIFIER NEWLINE {
-		macro_t *macro = hash_table_find (parser->defines, $3);
+		macro_t *macro;
+		if (strcmp("__LINE__", $3) == 0
+		    || strcmp("__FILE__", $3) == 0
+		    || strcmp("__VERSION__", $3) == 0)
+			glcpp_error(& @1, parser, "Built-in (pre-defined)"
+				    " macro names can not be undefined.");
+
+		macro = hash_table_find (parser->defines, $3);
 		if (macro) {
 			hash_table_remove (parser->defines, $3);
 			ralloc_free (macro);
@@ -358,7 +370,7 @@ control_line:
 			glcpp_warning(& @1, parser, "ignoring illegal #elif without expression");
 		}
 	}
-|	HASH_ELSE {
+|	HASH_ELSE { parser->lexing_directive = 1; } NEWLINE {
 		if (parser->skip_stack &&
 		    parser->skip_stack->has_else)
 		{
@@ -370,7 +382,7 @@ control_line:
 			if (parser->skip_stack)
 				parser->skip_stack->has_else = true;
 		}
-	} NEWLINE
+	}
 |	HASH_ENDIF {
 		_glcpp_parser_skip_stack_pop (parser, & @1);
 	} NEWLINE
@@ -406,87 +418,176 @@ integer_constant:
 	}
 
 expression:
-	integer_constant
+	integer_constant {
+		$$.value = $1;
+		$$.undefined_macro = NULL;
+	}
 |	IDENTIFIER {
+		$$.value = 0;
 		if (parser->is_gles)
-			glcpp_error(& @1, parser, "undefined macro %s in expression (illegal in GLES)", $1);
-		$$ = 0;
+			$$.undefined_macro = ralloc_strdup (parser, $1);
+		else
+			$$.undefined_macro = NULL;
 	}
 |	expression OR expression {
-		$$ = $1 || $3;
+		$$.value = $1.value || $3.value;
+
+		/* Short-circuit: Only flag undefined from right side
+		 * if left side evaluates to false.
+		 */
+		if ($1.undefined_macro)
+			$$.undefined_macro = $1.undefined_macro;
+                else if (! $1.value)
+			$$.undefined_macro = $3.undefined_macro;
 	}
 |	expression AND expression {
-		$$ = $1 && $3;
+		$$.value = $1.value && $3.value;
+
+		/* Short-circuit: Only flag undefined from right-side
+		 * if left side evaluates to true.
+		 */
+		if ($1.undefined_macro)
+			$$.undefined_macro = $1.undefined_macro;
+                else if ($1.value)
+			$$.undefined_macro = $3.undefined_macro;
 	}
 |	expression '|' expression {
-		$$ = $1 | $3;
+		$$.value = $1.value | $3.value;
+		if ($1.undefined_macro)
+			$$.undefined_macro = $1.undefined_macro;
+                else
+			$$.undefined_macro = $3.undefined_macro;
 	}
 |	expression '^' expression {
-		$$ = $1 ^ $3;
+		$$.value = $1.value ^ $3.value;
+		if ($1.undefined_macro)
+			$$.undefined_macro = $1.undefined_macro;
+                else
+			$$.undefined_macro = $3.undefined_macro;
 	}
 |	expression '&' expression {
-		$$ = $1 & $3;
+		$$.value = $1.value & $3.value;
+		if ($1.undefined_macro)
+			$$.undefined_macro = $1.undefined_macro;
+                else
+			$$.undefined_macro = $3.undefined_macro;
 	}
 |	expression NOT_EQUAL expression {
-		$$ = $1 != $3;
+		$$.value = $1.value != $3.value;
+		if ($1.undefined_macro)
+			$$.undefined_macro = $1.undefined_macro;
+                else
+			$$.undefined_macro = $3.undefined_macro;
 	}
 |	expression EQUAL expression {
-		$$ = $1 == $3;
+		$$.value = $1.value == $3.value;
+		if ($1.undefined_macro)
+			$$.undefined_macro = $1.undefined_macro;
+                else
+			$$.undefined_macro = $3.undefined_macro;
 	}
 |	expression GREATER_OR_EQUAL expression {
-		$$ = $1 >= $3;
+		$$.value = $1.value >= $3.value;
+		if ($1.undefined_macro)
+			$$.undefined_macro = $1.undefined_macro;
+                else
+			$$.undefined_macro = $3.undefined_macro;
 	}
 |	expression LESS_OR_EQUAL expression {
-		$$ = $1 <= $3;
+		$$.value = $1.value <= $3.value;
+		if ($1.undefined_macro)
+			$$.undefined_macro = $1.undefined_macro;
+                else
+			$$.undefined_macro = $3.undefined_macro;
 	}
 |	expression '>' expression {
-		$$ = $1 > $3;
+		$$.value = $1.value > $3.value;
+		if ($1.undefined_macro)
+			$$.undefined_macro = $1.undefined_macro;
+                else
+			$$.undefined_macro = $3.undefined_macro;
 	}
 |	expression '<' expression {
-		$$ = $1 < $3;
+		$$.value = $1.value < $3.value;
+		if ($1.undefined_macro)
+			$$.undefined_macro = $1.undefined_macro;
+                else
+			$$.undefined_macro = $3.undefined_macro;
 	}
 |	expression RIGHT_SHIFT expression {
-		$$ = $1 >> $3;
+		$$.value = $1.value >> $3.value;
+		if ($1.undefined_macro)
+			$$.undefined_macro = $1.undefined_macro;
+                else
+			$$.undefined_macro = $3.undefined_macro;
 	}
 |	expression LEFT_SHIFT expression {
-		$$ = $1 << $3;
+		$$.value = $1.value << $3.value;
+		if ($1.undefined_macro)
+			$$.undefined_macro = $1.undefined_macro;
+                else
+			$$.undefined_macro = $3.undefined_macro;
 	}
 |	expression '-' expression {
-		$$ = $1 - $3;
+		$$.value = $1.value - $3.value;
+		if ($1.undefined_macro)
+			$$.undefined_macro = $1.undefined_macro;
+                else
+			$$.undefined_macro = $3.undefined_macro;
 	}
 |	expression '+' expression {
-		$$ = $1 + $3;
+		$$.value = $1.value + $3.value;
+		if ($1.undefined_macro)
+			$$.undefined_macro = $1.undefined_macro;
+                else
+			$$.undefined_macro = $3.undefined_macro;
 	}
 |	expression '%' expression {
-		if ($3 == 0) {
+		if ($3.value == 0) {
 			yyerror (& @1, parser,
 				 "zero modulus in preprocessor directive");
 		} else {
-			$$ = $1 % $3;
+			$$.value = $1.value % $3.value;
 		}
+		if ($1.undefined_macro)
+			$$.undefined_macro = $1.undefined_macro;
+                else
+			$$.undefined_macro = $3.undefined_macro;
 	}
 |	expression '/' expression {
-		if ($3 == 0) {
+		if ($3.value == 0) {
 			yyerror (& @1, parser,
 				 "division by 0 in preprocessor directive");
 		} else {
-			$$ = $1 / $3;
+			$$.value = $1.value / $3.value;
 		}
+		if ($1.undefined_macro)
+			$$.undefined_macro = $1.undefined_macro;
+                else
+			$$.undefined_macro = $3.undefined_macro;
 	}
 |	expression '*' expression {
-		$$ = $1 * $3;
+		$$.value = $1.value * $3.value;
+		if ($1.undefined_macro)
+			$$.undefined_macro = $1.undefined_macro;
+                else
+			$$.undefined_macro = $3.undefined_macro;
 	}
 |	'!' expression %prec UNARY {
-		$$ = ! $2;
+		$$.value = ! $2.value;
+		$$.undefined_macro = $2.undefined_macro;
 	}
 |	'~' expression %prec UNARY {
-		$$ = ~ $2;
+		$$.value = ~ $2.value;
+		$$.undefined_macro = $2.undefined_macro;
 	}
 |	'-' expression %prec UNARY {
-		$$ = - $2;
+		$$.value = - $2.value;
+		$$.undefined_macro = $2.undefined_macro;
 	}
 |	'+' expression %prec UNARY {
-		$$ = + $2;
+		$$.value = + $2.value;
+		$$.undefined_macro = $2.undefined_macro;
 	}
 |	'(' expression ')' {
 		$$ = $2;
@@ -525,7 +626,7 @@ replacement_list:
 junk:
 	/* empty */
 |	pp_tokens {
-		glcpp_warning(&@1, parser, "extra tokens at end of directive");
+		glcpp_error(&@1, parser, "extra tokens at end of directive");
 	}
 ;
 
@@ -933,14 +1034,16 @@ _token_list_equal_ignoring_space (token_list_t *a, token_list_t *b)
 
 		if (node_a == NULL || node_b == NULL)
 			return 0;
-
-		if (node_a->token->type == SPACE) {
-			node_a = node_a->next;
-			continue;
-		}
-
-		if (node_b->token->type == SPACE) {
-			node_b = node_b->next;
+		/* Make sure whitespace appears in the same places in both.
+		 * It need not be exactly the same amount of whitespace,
+		 * though.
+		 */
+		if (node_a->token->type == SPACE
+		    && node_b->token->type == SPACE) {
+			while (node_a->token->type == SPACE)
+				node_a = node_a->next;
+			while (node_b->token->type == SPACE)
+				node_b = node_b->next;
 			continue;
 		}
 
@@ -1203,7 +1306,7 @@ glcpp_parser_create (const struct gl_extensions *extensions, gl_api api)
 	parser->defines = hash_table_ctor (32, hash_table_string_hash,
 					   hash_table_string_compare);
 	parser->active = NULL;
-	parser->lexing_if = 0;
+	parser->lexing_directive = 0;
 	parser->space_tokens = 1;
 	parser->newline_as_space = 0;
 	parser->in_control_line = 0;
diff --git a/mesalib/src/glsl/glcpp/glcpp.h b/mesalib/src/glsl/glcpp/glcpp.h
index 79ccb234f..64b487202 100644
--- a/mesalib/src/glsl/glcpp/glcpp.h
+++ b/mesalib/src/glsl/glcpp/glcpp.h
@@ -37,6 +37,12 @@
 
 /* Some data types used for parser values. */
 
+typedef struct expression_value {
+	intmax_t value;
+	char *undefined_macro;
+} expression_value_t;
+   
+
 typedef struct string_node {
 	const char *str;
 	struct string_node *next;
@@ -53,6 +59,7 @@ typedef struct token_list token_list_t;
 typedef union YYSTYPE
 {
 	intmax_t ival;
+	expression_value_t expression_value;
 	char *str;
 	string_list_t *string_list;
 	token_t *token;
@@ -168,7 +175,7 @@ struct glcpp_parser {
 	yyscan_t scanner;
 	struct hash_table *defines;
 	active_list_t *active;
-	int lexing_if;
+	int lexing_directive;
 	int space_tokens;
 	int newline_as_space;
 	int in_control_line;
diff --git a/mesalib/src/glsl/list.h b/mesalib/src/glsl/list.h
index 922bd68ab..a4444bda9 100644
--- a/mesalib/src/glsl/list.h
+++ b/mesalib/src/glsl/list.h
@@ -565,9 +565,9 @@ inline void exec_node::insert_before(exec_list *before)
         !(__inst)->is_tail_sentinel();               \
         (__inst) = (__type *)(__inst)->next)
 
-#define foreach_in_list_reverse(__type, __inst, __list) \
-   for (__type *(__inst) = (__type *)(__list)->head;    \
-        !(__inst)->is_head_sentinel();                  \
+#define foreach_in_list_reverse(__type, __inst, __list)   \
+   for (__type *(__inst) = (__type *)(__list)->tail_pred; \
+        !(__inst)->is_head_sentinel();                    \
         (__inst) = (__type *)(__inst)->prev)
 
 /**
diff --git a/mesalib/src/mesa/drivers/common/meta.c b/mesalib/src/mesa/drivers/common/meta.c
index f1f57297c..89d7a157c 100644
--- a/mesalib/src/mesa/drivers/common/meta.c
+++ b/mesalib/src/mesa/drivers/common/meta.c
@@ -217,6 +217,7 @@ _mesa_meta_compile_and_link_program(struct gl_context *ctx,
                                                     fs_source);
 
    *program = _mesa_CreateProgram();
+   _mesa_ObjectLabel(GL_PROGRAM, *program, -1, name);
    _mesa_AttachShader(*program, fs);
    _mesa_DeleteShader(fs);
    _mesa_AttachShader(*program, vs);
@@ -224,7 +225,6 @@ _mesa_meta_compile_and_link_program(struct gl_context *ctx,
    _mesa_BindAttribLocation(*program, 0, "position");
    _mesa_BindAttribLocation(*program, 1, "texcoords");
    _mesa_meta_link_program_with_debug(ctx, *program);
-   _mesa_ObjectLabel(GL_PROGRAM, *program, -1, name);
 
    _mesa_UseProgram(*program);
 }
diff --git a/mesalib/src/mesa/drivers/dri/common/SConscript b/mesalib/src/mesa/drivers/dri/common/SConscript
index 41f6356c3..d003139bf 100644
--- a/mesalib/src/mesa/drivers/dri/common/SConscript
+++ b/mesalib/src/mesa/drivers/dri/common/SConscript
@@ -27,58 +27,50 @@ drienv.Replace(CPPPATH = [
     '#src/egl/drivers/dri',
 ])
 
-driswenv = drienv.Clone()
-driswenv.Append(CPPDEFINES = [
-    '__NOT_HAVE_DRM_H',
-    'HAVE_DLADDR',
+drienv.AppendUnique(LIBS = [
+    'expat',
 ])
 
+# if HAVE_DRI2
 drienv.PkgUseModules('DRM')
+# else
+#env.Append(CPPDEFINES = ['__NOT_HAVE_DRM_H'])
 
-dri_common_utils = drienv.SharedObject(
-    target = 'utils.o',
-    source = '#src/mesa/drivers/dri/common/utils.c'
-)
+sources = drienv.ParseSourceList('Makefile.sources', 'DRI_COMMON_FILES')
 
-dri_common_xmlconfig = drienv.SharedObject(
-    target = 'xmlconfig.o',
-    source = '#src/mesa/drivers/dri/common/xmlconfig.c'
+dri_common = drienv.ConvenienceLibrary(
+	target = 'dri_common',
+	source = sources,
 )
 
-dri_common_dri_util = drienv.SharedObject(
-    target = 'dri_util.o',
-    source = '#src/mesa/drivers/dri/common/dri_util.c'
-)
-
-dri_common_drisw_util = driswenv.SharedObject(
-    target = 'drisw_util.o',
-    source = '#src/mesa/drivers/dri/common/dri_util.c'
-)
+#
+# megadrivers_stub
+#
+env = env.Clone()
 
+env.Append(CPPPATH = [
+    '#/include',
+    '#/src/',
+    '#/src/mapi',
+    '#/src/mesa',
+])
 
-COMMON_DRI_SW_OBJECTS = [
-    dri_common_utils,
-    dri_common_xmlconfig,
-    dri_common_drisw_util,
-]
+env.Append(CPPDEFINES = [
+    '__NOT_HAVE_DRM_H',
+    'HAVE_DLADDR',
+])
 
-COMMON_DRI_DRM_OBJECTS = [
-    dri_common_utils,
-    dri_common_xmlconfig,
-    dri_common_dri_util,
-]
+sources = env.ParseSourceList('Makefile.sources', 'megadriver_stub_FILES')
 
-drienv.AppendUnique(LIBS = [
-    'expat',
-])
+megadrivers_stub = env.ConvenienceLibrary(
+	target = 'megadrivers_stub',
+	source = sources,
+)
 
-driswenv.AppendUnique(LIBS = [
-    'expat',
-])
+env.Alias('megadrivers_stub', megadrivers_stub)
 
 Export([
     'drienv',
-    'driswenv',
-    'COMMON_DRI_SW_OBJECTS',
-    'COMMON_DRI_DRM_OBJECTS',
+    'dri_common',
+    'megadrivers_stub',
 ])
diff --git a/mesalib/src/mesa/main/context.c b/mesalib/src/mesa/main/context.c
index b08215950..50aae8bf6 100644
--- a/mesalib/src/mesa/main/context.c
+++ b/mesalib/src/mesa/main/context.c
@@ -1215,6 +1215,9 @@ _mesa_free_context_data( struct gl_context *ctx )
    _mesa_reference_vertprog(ctx, &ctx->VertexProgram._Current, NULL);
    _mesa_reference_vertprog(ctx, &ctx->VertexProgram._TnlProgram, NULL);
 
+   _mesa_reference_geomprog(ctx, &ctx->GeometryProgram.Current, NULL);
+   _mesa_reference_geomprog(ctx, &ctx->GeometryProgram._Current, NULL);
+
    _mesa_reference_fragprog(ctx, &ctx->FragmentProgram.Current, NULL);
    _mesa_reference_fragprog(ctx, &ctx->FragmentProgram._Current, NULL);
    _mesa_reference_fragprog(ctx, &ctx->FragmentProgram._TexEnvProgram, NULL);
diff --git a/mesalib/src/mesa/main/ff_fragment_shader.cpp b/mesalib/src/mesa/main/ff_fragment_shader.cpp
index 2c4f3d7df..8758b5e9d 100644
--- a/mesalib/src/mesa/main/ff_fragment_shader.cpp
+++ b/mesalib/src/mesa/main/ff_fragment_shader.cpp
@@ -914,54 +914,54 @@ static void load_texture( texenv_fragment_program *p, GLuint unit )
    switch (texTarget) {
    case TEXTURE_1D_INDEX:
       if (p->state->unit[unit].shadow)
-	 sampler_type = p->shader->symbols->get_type("sampler1DShadow");
+	 sampler_type = glsl_type::sampler1DShadow_type;
       else
-	 sampler_type = p->shader->symbols->get_type("sampler1D");
+	 sampler_type = glsl_type::sampler1D_type;
       coords = 1;
       break;
    case TEXTURE_1D_ARRAY_INDEX:
       if (p->state->unit[unit].shadow)
-	 sampler_type = p->shader->symbols->get_type("sampler1DArrayShadow");
+	 sampler_type = glsl_type::sampler1DArrayShadow_type;
       else
-	 sampler_type = p->shader->symbols->get_type("sampler1DArray");
+	 sampler_type = glsl_type::sampler1DArray_type;
       coords = 2;
       break;
    case TEXTURE_2D_INDEX:
       if (p->state->unit[unit].shadow)
-	 sampler_type = p->shader->symbols->get_type("sampler2DShadow");
+	 sampler_type = glsl_type::sampler2DShadow_type;
       else
-	 sampler_type = p->shader->symbols->get_type("sampler2D");
+	 sampler_type = glsl_type::sampler2D_type;
       coords = 2;
       break;
    case TEXTURE_2D_ARRAY_INDEX:
       if (p->state->unit[unit].shadow)
-	 sampler_type = p->shader->symbols->get_type("sampler2DArrayShadow");
+	 sampler_type = glsl_type::sampler2DArrayShadow_type;
       else
-	 sampler_type = p->shader->symbols->get_type("sampler2DArray");
+	 sampler_type = glsl_type::sampler2DArray_type;
       coords = 3;
       break;
    case TEXTURE_RECT_INDEX:
       if (p->state->unit[unit].shadow)
-	 sampler_type = p->shader->symbols->get_type("sampler2DRectShadow");
+	 sampler_type = glsl_type::sampler2DRectShadow_type;
       else
-	 sampler_type = p->shader->symbols->get_type("sampler2DRect");
+	 sampler_type = glsl_type::sampler2DRect_type;
       coords = 2;
       break;
    case TEXTURE_3D_INDEX:
       assert(!p->state->unit[unit].shadow);
-      sampler_type = p->shader->symbols->get_type("sampler3D");
+      sampler_type = glsl_type::sampler3D_type;
       coords = 3;
       break;
    case TEXTURE_CUBE_INDEX:
       if (p->state->unit[unit].shadow)
-	 sampler_type = p->shader->symbols->get_type("samplerCubeShadow");
+	 sampler_type = glsl_type::samplerCubeShadow_type;
       else
-	 sampler_type = p->shader->symbols->get_type("samplerCube");
+	 sampler_type = glsl_type::samplerCube_type;
       coords = 3;
       break;
    case TEXTURE_EXTERNAL_INDEX:
       assert(!p->state->unit[unit].shadow);
-      sampler_type = p->shader->symbols->get_type("samplerExternalOES");
+      sampler_type = glsl_type::samplerExternalOES_type;
       coords = 2;
       break;
    }
@@ -1241,7 +1241,7 @@ create_new_program(struct gl_context *ctx, struct state_key *key)
    state->symbols->add_function(main_f);
 
    ir_function_signature *main_sig =
-      new(p.mem_ctx) ir_function_signature(p.shader->symbols->get_type("void"));
+      new(p.mem_ctx) ir_function_signature(glsl_type::void_type);
    main_sig->is_defined = true;
    main_f->add_signature(main_sig);
 
diff --git a/mesalib/src/mesa/main/multisample.c b/mesalib/src/mesa/main/multisample.c
index 599cdee74..1f3fa0c15 100644
--- a/mesalib/src/mesa/main/multisample.c
+++ b/mesalib/src/mesa/main/multisample.c
@@ -89,7 +89,7 @@ _mesa_GetMultisamplefv(GLenum pname, GLuint index, GLfloat * val)
 
       /* winsys FBOs are upside down */
       if (_mesa_is_winsys_fbo(ctx->DrawBuffer))
-         val[1] = 1 - val[1];
+         val[1] = 1.0f - val[1];
 
       return;
    }
diff --git a/mesalib/src/mesa/main/shared.c b/mesalib/src/mesa/main/shared.c
index dc22025c2..5ae7014b1 100644
--- a/mesalib/src/mesa/main/shared.c
+++ b/mesalib/src/mesa/main/shared.c
@@ -312,6 +312,7 @@ free_shared_state(struct gl_context *ctx, struct gl_shared_state *shared)
    _mesa_DeleteHashTable(shared->Programs);
 
    _mesa_reference_vertprog(ctx, &shared->DefaultVertexProgram, NULL);
+   _mesa_reference_geomprog(ctx, &shared->DefaultGeometryProgram, NULL);
    _mesa_reference_fragprog(ctx, &shared->DefaultFragmentProgram, NULL);
 
    _mesa_HashDeleteAll(shared->ATIShaders, delete_fragshader_cb, ctx);
diff --git a/mesalib/src/mesa/state_tracker/st_atom_blend.c b/mesalib/src/mesa/state_tracker/st_atom_blend.c
index 50d240a7b..064e0c14f 100644
--- a/mesalib/src/mesa/state_tracker/st_atom_blend.c
+++ b/mesalib/src/mesa/state_tracker/st_atom_blend.c
@@ -263,16 +263,13 @@ update_blend( struct st_context *st )
          blend->rt[i].colormask |= PIPE_MASK_A;
    }
 
-   if (ctx->Color.DitherFlag)
-      blend->dither = 1;
+   blend->dither = ctx->Color.DitherFlag;
 
    if (ctx->Multisample.Enabled) {
       /* unlike in gallium/d3d10 these operations are only performed
          if msaa is enabled */
-      if (ctx->Multisample.SampleAlphaToCoverage)
-         blend->alpha_to_coverage = 1;
-      if (ctx->Multisample.SampleAlphaToOne)
-         blend->alpha_to_one = 1;
+      blend->alpha_to_coverage = ctx->Multisample.SampleAlphaToCoverage;
+      blend->alpha_to_one = ctx->Multisample.SampleAlphaToOne;
    }
 
    cso_set_blend(st->cso_context, blend);
diff --git a/mesalib/src/mesa/state_tracker/st_atom_rasterizer.c b/mesalib/src/mesa/state_tracker/st_atom_rasterizer.c
index ee5e9e574..2bad64334 100644
--- a/mesalib/src/mesa/state_tracker/st_atom_rasterizer.c
+++ b/mesalib/src/mesa/state_tracker/st_atom_rasterizer.c
@@ -245,7 +245,7 @@ static void update_raster_state( struct st_context *st )
    }
 
    /* _NEW_TRANSFORM */
-   raster->depth_clip = ctx->Transform.DepthClamp == GL_FALSE;
+   raster->depth_clip = !ctx->Transform.DepthClamp;
    raster->clip_plane_enable = ctx->Transform.ClipPlanesEnabled;
 
    cso_set_rasterizer(st->cso_context, raster);
diff --git a/mesalib/src/mesa/state_tracker/st_atom_shader.c b/mesalib/src/mesa/state_tracker/st_atom_shader.c
index 67c615713..6515a98a3 100644
--- a/mesalib/src/mesa/state_tracker/st_atom_shader.c
+++ b/mesalib/src/mesa/state_tracker/st_atom_shader.c
@@ -89,6 +89,10 @@ update_fp( struct st_context *st )
    key.clamp_color = st->clamp_frag_color_in_shader &&
                      st->ctx->Color._ClampFragmentColor;
 
+   /* Ignore sample qualifier while computing this flag. */
+   key.persample_shading =
+      _mesa_get_min_invocations_per_fragment(st->ctx, &stfp->Base, true) > 1;
+
    st->fp_variant = st_get_fp_variant(st, stfp, &key);
 
    st_reference_fragprog(st, &st->fp, stfp);
@@ -108,7 +112,7 @@ update_fp( struct st_context *st )
 const struct st_tracked_state st_update_fp = {
    "st_update_fp",					/* name */
    {							/* dirty */
-      _NEW_BUFFERS,					/* mesa */
+      _NEW_BUFFERS | _NEW_MULTISAMPLE,			/* mesa */
       ST_NEW_FRAGMENT_PROGRAM                           /* st */
    },
    update_fp  					/* update */
diff --git a/mesalib/src/mesa/state_tracker/st_cb_msaa.c b/mesalib/src/mesa/state_tracker/st_cb_msaa.c
index bbf2b2c5c..e9955b62b 100644
--- a/mesalib/src/mesa/state_tracker/st_cb_msaa.c
+++ b/mesalib/src/mesa/state_tracker/st_cb_msaa.c
@@ -40,7 +40,7 @@ static void
 st_GetSamplePosition(struct gl_context *ctx,
                      struct gl_framebuffer *fb,
                      GLuint index,
-                     GLfloat *outValue)
+                     GLfloat *outPos)
 {
    struct st_context *st = st_context(ctx);
 
@@ -48,7 +48,9 @@ st_GetSamplePosition(struct gl_context *ctx,
 
    if (st->pipe->get_sample_position)
       st->pipe->get_sample_position(st->pipe, (unsigned) fb->Visual.samples,
-                                    index, outValue);
+                                    index, outPos);
+   else
+      outPos[0] = outPos[1] = 0.5f;
 }
 
 
diff --git a/mesalib/src/mesa/state_tracker/st_context.c b/mesalib/src/mesa/state_tracker/st_context.c
index c7f3ec6be..c805a094b 100644
--- a/mesalib/src/mesa/state_tracker/st_context.c
+++ b/mesalib/src/mesa/state_tracker/st_context.c
@@ -307,6 +307,7 @@ void st_destroy_context( struct st_context *st )
    cso_release_all(st->cso_context);
 
    st_reference_fragprog(st, &st->fp, NULL);
+   st_reference_geomprog(st, &st->gp, NULL);
    st_reference_vertprog(st, &st->vp, NULL);
 
    /* release framebuffer surfaces */
diff --git a/mesalib/src/mesa/state_tracker/st_format.c b/mesalib/src/mesa/state_tracker/st_format.c
index 38d4ccfea..409079bd4 100644
--- a/mesalib/src/mesa/state_tracker/st_format.c
+++ b/mesalib/src/mesa/state_tracker/st_format.c
@@ -83,6 +83,8 @@ st_mesa_format_to_pipe_format(mesa_format mesaFormat)
       return PIPE_FORMAT_B2G3R3_UNORM;
    case MESA_FORMAT_B10G10R10A2_UNORM:
       return PIPE_FORMAT_B10G10R10A2_UNORM;
+   case MESA_FORMAT_R10G10B10A2_UNORM:
+      return PIPE_FORMAT_R10G10B10A2_UNORM;
    case MESA_FORMAT_L4A4_UNORM:
       return PIPE_FORMAT_L4A4_UNORM;
    case MESA_FORMAT_L8A8_UNORM:
@@ -439,6 +441,8 @@ st_pipe_format_to_mesa_format(enum pipe_format format)
       return MESA_FORMAT_B2G3R3_UNORM;
    case PIPE_FORMAT_B10G10R10A2_UNORM:
       return MESA_FORMAT_B10G10R10A2_UNORM;
+   case PIPE_FORMAT_R10G10B10A2_UNORM:
+      return MESA_FORMAT_R10G10B10A2_UNORM;
    case PIPE_FORMAT_L4A4_UNORM:
       return MESA_FORMAT_L4A4_UNORM;
    case PIPE_FORMAT_L8A8_UNORM:
@@ -857,7 +861,8 @@ static const struct format_mapping format_map[] = {
    },
    {
       { GL_RGB10_A2, 0 },
-      { PIPE_FORMAT_B10G10R10A2_UNORM, DEFAULT_RGBA_FORMATS }
+      { PIPE_FORMAT_B10G10R10A2_UNORM, PIPE_FORMAT_R10G10B10A2_UNORM,
+        DEFAULT_RGBA_FORMATS }
    },
    {
       { 4, GL_RGBA, GL_RGBA8, 0 },
diff --git a/mesalib/src/mesa/state_tracker/st_glsl_to_tgsi.cpp b/mesalib/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
index 9e1943139..f47cd7d53 100644
--- a/mesalib/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
+++ b/mesalib/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
@@ -4848,6 +4848,7 @@ emit_edgeflags(struct st_translate *t)
  * \param inputSemanticIndex  the semantic index (ex: which texcoord) for
  *                            each input
  * \param interpMode  the TGSI_INTERPOLATE_LINEAR/PERSP mode for each input
+ * \param interpLocation the TGSI_INTERPOLATE_LOC_* location for each input
  * \param numOutputs  number of output registers used
  * \param outputMapping  maps Mesa fragment program outputs to TGSI
  *                       generic outputs
@@ -4869,7 +4870,7 @@ st_translate_program(
    const ubyte inputSemanticName[],
    const ubyte inputSemanticIndex[],
    const GLuint interpMode[],
-   const GLboolean is_centroid[],
+   const GLuint interpLocation[],
    GLuint numOutputs,
    const GLuint outputMapping[],
    const ubyte outputSemanticName[],
@@ -4915,7 +4916,7 @@ st_translate_program(
                                                         inputSemanticName[i],
                                                         inputSemanticIndex[i],
                                                         interpMode[i], 0,
-                                                        is_centroid[i]);
+                                                        interpLocation[i]);
       }
 
       if (proginfo->InputsRead & VARYING_BIT_POS) {
diff --git a/mesalib/src/mesa/state_tracker/st_glsl_to_tgsi.h b/mesalib/src/mesa/state_tracker/st_glsl_to_tgsi.h
index a3fe91f7e..2e7cb78d5 100644
--- a/mesalib/src/mesa/state_tracker/st_glsl_to_tgsi.h
+++ b/mesalib/src/mesa/state_tracker/st_glsl_to_tgsi.h
@@ -45,7 +45,7 @@ enum pipe_error st_translate_program(
    const ubyte inputSemanticName[],
    const ubyte inputSemanticIndex[],
    const GLuint interpMode[],
-   const GLboolean is_centroid[],
+   const GLuint interpLocation[],
    GLuint numOutputs,
    const GLuint outputMapping[],
    const ubyte outputSemanticName[],
diff --git a/mesalib/src/mesa/state_tracker/st_program.c b/mesalib/src/mesa/state_tracker/st_program.c
index 3570557fe..9d7b7c475 100644
--- a/mesalib/src/mesa/state_tracker/st_program.c
+++ b/mesalib/src/mesa/state_tracker/st_program.c
@@ -351,7 +351,7 @@ st_translate_vertex_program(struct st_context *st,
                                    NULL, /* input semantic name */
                                    NULL, /* input semantic index */
                                    NULL, /* interp mode */
-                                   NULL, /* is centroid */
+                                   NULL, /* interp location */
                                    /* outputs */
                                    num_outputs,
                                    stvp->result_to_output,
@@ -481,6 +481,7 @@ st_translate_fragment_program(struct st_context *st,
    GLuint outputMapping[FRAG_RESULT_MAX];
    GLuint inputMapping[VARYING_SLOT_MAX];
    GLuint interpMode[PIPE_MAX_SHADER_INPUTS];  /* XXX size? */
+   GLuint interpLocation[PIPE_MAX_SHADER_INPUTS];
    GLuint attr;
    GLbitfield64 inputsRead;
    struct ureg_program *ureg;
@@ -489,7 +490,6 @@ st_translate_fragment_program(struct st_context *st,
 
    ubyte input_semantic_name[PIPE_MAX_SHADER_INPUTS];
    ubyte input_semantic_index[PIPE_MAX_SHADER_INPUTS];
-   GLboolean is_centroid[PIPE_MAX_SHADER_INPUTS];
    uint fs_num_inputs = 0;
 
    ubyte fs_output_semantic_name[PIPE_MAX_SHADER_OUTPUTS];
@@ -541,7 +541,15 @@ st_translate_fragment_program(struct st_context *st,
          const GLuint slot = fs_num_inputs++;
 
          inputMapping[attr] = slot;
-         is_centroid[slot] = (stfp->Base.IsCentroid & BITFIELD64_BIT(attr)) != 0;
+         if (stfp->Base.IsCentroid & BITFIELD64_BIT(attr))
+            interpLocation[slot] = TGSI_INTERPOLATE_LOC_CENTROID;
+         else if (stfp->Base.IsSample & BITFIELD64_BIT(attr))
+            interpLocation[slot] = TGSI_INTERPOLATE_LOC_SAMPLE;
+         else
+            interpLocation[slot] = TGSI_INTERPOLATE_LOC_CENTER;
+
+         if (key->persample_shading)
+            interpLocation[slot] = TGSI_INTERPOLATE_LOC_SAMPLE;
 
          switch (attr) {
          case VARYING_SLOT_POS:
@@ -768,7 +776,7 @@ st_translate_fragment_program(struct st_context *st,
                            input_semantic_name,
                            input_semantic_index,
                            interpMode,
-                           is_centroid,
+                           interpLocation,
                            /* outputs */
                            fs_num_outputs,
                            outputMapping,
diff --git a/mesalib/src/mesa/state_tracker/st_program.h b/mesalib/src/mesa/state_tracker/st_program.h
index ce9174f67..9a5b6a847 100644
--- a/mesalib/src/mesa/state_tracker/st_program.h
+++ b/mesalib/src/mesa/state_tracker/st_program.h
@@ -58,6 +58,9 @@ struct st_fp_variant_key
 
    /** for ARB_color_buffer_float */
    GLuint clamp_color:1;
+
+   /** for ARB_sample_shading */
+   GLuint persample_shading:1;
 };