mesa: add KHR_no_error support for glDepthRangeIndexed()

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>

src/mapi/glapi/gen/ARB_viewport_array.xml

@@ -66,7 +66,7 @@
         <param name="count" type="GLsizei"/>
         <param name="v" type="const GLclampd *" count="count" count_scale="2"/>
     </function>
-    <function name="DepthRangeIndexed">
+    <function name="DepthRangeIndexed" no_error="true">
         <param name="index" type="GLuint"/>
         <param name="n" type="GLclampd"/>
         <param name="f" type="GLclampd"/>

src/mesa/main/viewport.c

@@ -403,6 +403,15 @@ _mesa_DepthRangeArrayfvOES(GLuint first, GLsizei count, const GLfloat *v)
  * \param farval   specifies the Z buffer value which should correspond to
  *                 the far clip plane
  */
+void GLAPIENTRY
+_mesa_DepthRangeIndexed_no_error(GLuint index, GLclampd nearval,
+                                 GLclampd farval)
+{
+   GET_CURRENT_CONTEXT(ctx);
+   _mesa_set_depth_range(ctx, index, nearval, farval);
+}
+
+
 void GLAPIENTRY
 _mesa_DepthRangeIndexed(GLuint index, GLclampd nearval, GLclampd farval)
 {

src/mesa/main/viewport.h

@@ -73,6 +73,9 @@ _mesa_DepthRangeArrayv(GLuint first, GLsizei count, const GLclampd * v);
 extern void GLAPIENTRY
 _mesa_DepthRangeArrayfvOES(GLuint first, GLsizei count, const GLfloat * v);
 
+void GLAPIENTRY
+_mesa_DepthRangeIndexed_no_error(GLuint index, GLclampd n, GLclampd f);
+
 extern void GLAPIENTRY
 _mesa_DepthRangeIndexed(GLuint index, GLclampd n, GLclampd f);