mesa: add KHR_no_error support to glEndTransformFeedback()

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

src/mapi/glapi/gen/GL3x.xml

@@ -210,7 +210,7 @@
     <param name="mode" type="GLenum"/>
   </function>
 
-  <function name="EndTransformFeedback" es2="3.0">
+  <function name="EndTransformFeedback" es2="3.0" no_error="true">
   </function>
 
   <function name="BindBufferRange" es2="3.0" no_error="true">

src/mesa/main/transformfeedback.c

@@ -511,6 +511,14 @@ end_transform_feedback(struct gl_context *ctx,
 }
 
 
+void GLAPIENTRY
+_mesa_EndTransformFeedback_no_error(void)
+{
+   GET_CURRENT_CONTEXT(ctx);
+   end_transform_feedback(ctx, ctx->TransformFeedback.CurrentObject);
+}
+
+
 void GLAPIENTRY
 _mesa_EndTransformFeedback(void)
 {

src/mesa/main/transformfeedback.h

@@ -59,6 +59,9 @@ _mesa_BeginTransformFeedback_no_error(GLenum mode);
 extern void GLAPIENTRY
 _mesa_BeginTransformFeedback(GLenum mode);
 
+void GLAPIENTRY
+_mesa_EndTransformFeedback_no_error(void);
+
 extern void GLAPIENTRY
 _mesa_EndTransformFeedback(void);