1 files changed, 50 insertions, 8 deletions

diff --git a/mesalib/src/glsl/ast.h b/mesalib/src/glsl/ast.h
index 5f2d5b1e4..2cf86e797 100644
--- a/mesalib/src/glsl/ast.h
+++ b/mesalib/src/glsl/ast.h
@@ -439,6 +439,12 @@ struct ast_type_qualifier {
          unsigned column_major:1;
          unsigned row_major:1;
 	 /** \} */
+
+	 /** \name Layout qualifiers for GLSL 1.50 geometry shaders */
+	 /** \{ */
+	 unsigned prim_type:1;
+	 unsigned max_vertices:1;
+	 /** \} */
       }
       /** \brief Set of flags, accessed by name. */
       q;
@@ -465,6 +471,12 @@ struct ast_type_qualifier {
     */
    int index;
 
+   /** Maximum output vertices in GLSL 1.50 geometry shaders. */
+   int max_vertices;
+
+   /** Input or output primitive type in GLSL 1.50 geometry shaders */
+   GLenum prim_type;
+
    /**
     * Binding specified via GL_ARB_shading_language_420pack's "binding" keyword.
     *
@@ -899,12 +911,14 @@ public:
 class ast_interface_block : public ast_node {
 public:
    ast_interface_block(ast_type_qualifier layout,
-                     const char *instance_name,
-		     ast_expression *array_size)
+                       const char *instance_name,
+                       bool is_array,
+                       ast_expression *array_size)
    : layout(layout), block_name(NULL), instance_name(instance_name),
-     array_size(array_size)
+     is_array(is_array), array_size(array_size)
    {
-      /* empty */
+      if (!is_array)
+         assert(array_size == NULL);
    }
 
    virtual ir_rvalue *hir(exec_list *instructions,
@@ -925,16 +939,44 @@ public:
    exec_list declarations;
 
    /**
-    * Declared array size of the block instance
-    *
-    * If the block is not declared as an array, this field will be \c NULL.
+    * True if the block is declared as an array
     *
     * \note
     * A block can only be an array if it also has an instance name.  If this
-    * field is not \c NULL, ::instance_name must also not be \c NULL.
+    * field is true, ::instance_name must also not be \c NULL.
+    */
+   bool is_array;
+
+   /**
+    * Declared array size of the block instance
+    *
+    * If the block is not declared as an array or if the block instance array
+    * is unsized, this field will be \c NULL.
     */
    ast_expression *array_size;
 };
+
+
+/**
+ * AST node representing a declaration of the input layout for geometry
+ * shaders.
+ */
+class ast_gs_input_layout : public ast_node
+{
+public:
+   ast_gs_input_layout(const struct YYLTYPE &locp, GLenum prim_type)
+      : prim_type(prim_type)
+   {
+      set_location(locp);
+   }
+
+   virtual ir_rvalue *hir(exec_list *instructions,
+                          struct _mesa_glsl_parse_state *state);
+
+private:
+   const GLenum prim_type;
+};
+
 /*@}*/
 
 extern void