From 3906e8ab6477af71e5c84cae17ee1efa1b9e541d Mon Sep 17 00:00:00 2001
From: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Date: Thu, 24 Aug 2017 11:57:55 +0200
Subject: [PATCH] mesa: add KHR_no_error support to glBeginTransformFeedback()

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>
---
 src/mapi/glapi/gen/GL3x.xml       | 2 +-
 src/mesa/main/transformfeedback.c | 8 ++++++++
 src/mesa/main/transformfeedback.h | 3 +++
 3 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/src/mapi/glapi/gen/GL3x.xml b/src/mapi/glapi/gen/GL3x.xml
index 8d10f78e824..54e99e7db92 100644
--- a/src/mapi/glapi/gen/GL3x.xml
+++ b/src/mapi/glapi/gen/GL3x.xml
@@ -206,7 +206,7 @@
     <param name="name" type="const GLchar *"/>
   </function>
 
-  <function name="BeginTransformFeedback" es2="3.0">
+  <function name="BeginTransformFeedback" es2="3.0" no_error="true">
     <param name="mode" type="GLenum"/>
   </function>
 
diff --git a/src/mesa/main/transformfeedback.c b/src/mesa/main/transformfeedback.c
index f59f5a3f76c..525c5b7a5b8 100644
--- a/src/mesa/main/transformfeedback.c
+++ b/src/mesa/main/transformfeedback.c
@@ -479,6 +479,14 @@ begin_transform_feedback(struct gl_context *ctx, GLenum mode, bool no_error)
 }
 
 
+void GLAPIENTRY
+_mesa_BeginTransformFeedback_no_error(GLenum mode)
+{
+   GET_CURRENT_CONTEXT(ctx);
+   begin_transform_feedback(ctx, mode, true);
+}
+
+
 void GLAPIENTRY
 _mesa_BeginTransformFeedback(GLenum mode)
 {
diff --git a/src/mesa/main/transformfeedback.h b/src/mesa/main/transformfeedback.h
index 47639bb56fd..6f28d817ab6 100644
--- a/src/mesa/main/transformfeedback.h
+++ b/src/mesa/main/transformfeedback.h
@@ -53,6 +53,9 @@ _mesa_compute_max_transform_feedback_vertices( struct gl_context *ctx,
 
 /*** GL_EXT_transform_feedback ***/
 
+void GLAPIENTRY
+_mesa_BeginTransformFeedback_no_error(GLenum mode);
+
 extern void GLAPIENTRY
 _mesa_BeginTransformFeedback(GLenum mode);