glsl: Rename uniform_field_visitor to program_resource_visitor.

There's actually nothing uniform-specific in uniform_field_visitor.
It is potentially useful for all kinds of program resources (in
particular, future patches will use it for transform feedback
varyings).

This patch renames it to program_resource_visitor, and clarifies
several comments, to reflect the fact that it is useful for more than
just uniforms.

NOTE: This is a candidate for the 9.1 branch.

Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>

1 files changed, 17 insertions, 16 deletions

diff --git a/src/glsl/linker.h b/src/glsl/linker.h
index 14eb9c1..f1ce50a 100644
--- a/src/glsl/linker.h
+++ b/src/glsl/linker.h
@@ -61,38 +61,39 @@ link_uniform_blocks(void *mem_ctx,
                     struct gl_uniform_block **blocks_ret);
 
 /**
- * Class for processing all of the leaf fields of an uniform
+ * Class for processing all of the leaf fields of a variable that corresponds
+ * to a program resource.
  *
- * Leaves are, roughly speaking, the parts of the uniform that the application
- * could query with \c glGetUniformLocation (or that could be returned by
- * \c glGetActiveUniforms).
+ * The leaf fields are all the parts of the variable that the application
+ * could query using \c glGetProgramResourceIndex (or that could be returned
+ * by \c glGetProgramResourceName).
  *
  * Classes my derive from this class to implement specific functionality.
  * This class only provides the mechanism to iterate over the leaves.  Derived
  * classes must implement \c ::visit_field and may override \c ::process.
  */
-class uniform_field_visitor {
+class program_resource_visitor {
 public:
    /**
-    * Begin processing a uniform
+    * Begin processing a variable
     *
     * Classes that overload this function should call \c ::process from the
-    * base class to start the recursive processing of the uniform.
+    * base class to start the recursive processing of the variable.
     *
-    * \param var  The uniform variable that is to be processed
+    * \param var  The variable that is to be processed
     *
-    * Calls \c ::visit_field for each leaf of the uniform.
+    * Calls \c ::visit_field for each leaf of the variable.
     *
     * \warning
-    * This entry should only be used with uniform blocks in cases where the
-    * row / column ordering of matrices in the block does not matter.  For
-    * example, enumerating the names of members of the block, but not for
-    * determining the offsets of members.
+    * When processing a uniform block, this entry should only be used in cases
+    * where the row / column ordering of matrices in the block does not
+    * matter.  For example, enumerating the names of members of the block, but
+    * not for determining the offsets of members.
     */
    void process(ir_variable *var);
 
    /**
-    * Begin processing a uniform of a structured type.
+    * Begin processing a variable of a structured type.
     *
     * This flavor of \c process should be used to handle structured types
     * (i.e., structures, interfaces, or arrays there of) that need special
@@ -100,7 +101,7 @@ public:
     * (instead of the instance name) is used for an interface block.
     *
     * \param type  Type that is to be processed, associated with \c name
-    * \param name  Base name of the structured uniform being processed
+    * \param name  Base name of the structured variable being processed
     *
     * \note
     * \c type must be \c GLSL_TYPE_RECORD, \c GLSL_TYPE_INTERFACE, or an array
@@ -110,7 +111,7 @@ public:
 
 protected:
    /**
-    * Method invoked for each leaf of the uniform
+    * Method invoked for each leaf of the variable
     *
     * \param type  Type of the field.
     * \param name  Fully qualified name of the field.