From: Ian Romanick <ian.d.romanick@intel.com>
Date: Thu, 10 Jun 2010 00:27:31 +0000 (-0700)
Subject: Add glsl_types::field_index to get the location of a record field
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=eeedd355cfc2f0c578282657bd4259440a88742c;p=mesa.git

Add glsl_types::field_index to get the location of a record field
---

diff --git a/glsl_types.cpp b/glsl_types.cpp
index 9487819a447..4b6a61a13c2 100644
--- a/glsl_types.cpp
+++ b/glsl_types.cpp
@@ -718,3 +718,18 @@ glsl_type::field_type(const char *name) const
 
    return error_type;
 }
+
+
+int
+glsl_type::field_index(const char *name) const
+{
+   if (this->base_type != GLSL_TYPE_STRUCT)
+      return -1;
+
+   for (unsigned i = 0; i < this->length; i++) {
+      if (strcmp(name, this->fields.structure[i].name) == 0)
+	 return i;
+   }
+
+   return -1;
+}
diff --git a/glsl_types.h b/glsl_types.h
index 823897df4ae..3265016146d 100644
--- a/glsl_types.h
+++ b/glsl_types.h
@@ -355,6 +355,12 @@ struct glsl_type {
    const glsl_type *field_type(const char *name) const;
 
 
+   /**
+    * Get the location of a filed within a record type
+    */
+   int field_index(const char *name) const;
+
+
    /**
     * Query the number of elements in an array type
     *