From 7009955281260fbb488736706679eb9fa73493d4 Mon Sep 17 00:00:00 2001
From: Ian Romanick <ian.d.romanick@intel.com>
Date: Mon, 22 May 2017 11:14:32 -0700
Subject: [PATCH] mesa: Remove GL_APPLE_vertex_array_object stubs

Mark the functions 'exec="skip"' in the XML instead.  libGL will still
have the functions, but the driver won't try to use them.  I verified
that this commit works with piglit's 'object-namespace-pollution glClear
vertex-array' on x64 with a driver built from mesa-12.0.3 tag.

In fairness, this test also works with a libGL built from 7927d03.  I
believe it continues to work because on non-Windows platforms we
generate some extra, dummy dispatch functions that can be used when a
driver requests a function unknown to libGL.  This was done to provide
some "forward" compatibility with drivers that need more functions.
This doesn't work on Windows because the Windows calling convention is
for the callee to clean up the stack.  That's the theory anyway.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>
---
 src/mapi/glapi/gen/APPLE_vertex_array_object.xml |  8 ++++----
 src/mesa/main/arrayobj.c                         | 16 ----------------
 src/mesa/main/arrayobj.h                         |  4 ----
 src/mesa/main/tests/dispatch_sanity.cpp          |  2 --
 4 files changed, 4 insertions(+), 26 deletions(-)

diff --git a/src/mapi/glapi/gen/APPLE_vertex_array_object.xml b/src/mapi/glapi/gen/APPLE_vertex_array_object.xml
index 7312f9b35f0..daf6990ea8a 100644
--- a/src/mapi/glapi/gen/APPLE_vertex_array_object.xml
+++ b/src/mapi/glapi/gen/APPLE_vertex_array_object.xml
@@ -5,21 +5,21 @@
 <category name="GL_APPLE_vertex_array_object" number="273">
     <enum name="VERTEX_ARRAY_BINDING_APPLE"               value="0x85B5"/>
 
-    <function name="BindVertexArrayAPPLE" deprecated="3.1">
+    <function name="BindVertexArrayAPPLE" deprecated="3.1" exec="skip">
         <param name="array" type="GLuint"/>
     </function>
 
-    <function name="DeleteVertexArraysAPPLE" alias="DeleteVertexArrays">
+    <function name="DeleteVertexArraysAPPLE" exec="skip">
         <param name="n" type="GLsizei"/>
 	<param name="arrays" type="const GLuint *"/>
     </function>
 
-    <function name="GenVertexArraysAPPLE" deprecated="3.1">
+    <function name="GenVertexArraysAPPLE" deprecated="3.1" exec="skip">
         <param name="n" type="GLsizei"/>
 	<param name="arrays" type="GLuint *" count="n" output="true"/>
     </function>
 
-    <function name="IsVertexArrayAPPLE" alias="IsVertexArray">
+    <function name="IsVertexArrayAPPLE" exec="skip">
         <param name="array" type="GLuint"/>
 	<return type="GLboolean"/>
     </function>
diff --git a/src/mesa/main/arrayobj.c b/src/mesa/main/arrayobj.c
index b98622932c5..82c00fbe826 100644
--- a/src/mesa/main/arrayobj.c
+++ b/src/mesa/main/arrayobj.c
@@ -473,14 +473,6 @@ _mesa_BindVertexArray( GLuint id )
 }
 
 
-void GLAPIENTRY
-_mesa_BindVertexArrayAPPLE(GLuint id)
-{
-   GET_CURRENT_CONTEXT(ctx);
-   _mesa_problem(ctx, "APPLE_vertex_array_object is not supported!");
-}
-
-
 /**
  * Delete a set of array objects.
  *
@@ -587,14 +579,6 @@ _mesa_GenVertexArrays(GLsizei n, GLuint *arrays)
 }
 
 
-void GLAPIENTRY
-_mesa_GenVertexArraysAPPLE(GLsizei n, GLuint *arrays)
-{
-   GET_CURRENT_CONTEXT(ctx);
-   _mesa_problem(ctx, "APPLE_vertex_array_object is not supported!");
-}
-
-
 /**
  * ARB_direct_state_access
  * Generates ID's and creates the array objects.
diff --git a/src/mesa/main/arrayobj.h b/src/mesa/main/arrayobj.h
index 097027ba97c..17949685775 100644
--- a/src/mesa/main/arrayobj.h
+++ b/src/mesa/main/arrayobj.h
@@ -96,14 +96,10 @@ _mesa_all_buffers_are_unmapped(const struct gl_vertex_array_object *vao);
 
 void GLAPIENTRY _mesa_BindVertexArray( GLuint id );
 
-void GLAPIENTRY _mesa_BindVertexArrayAPPLE(GLuint id);
-
 void GLAPIENTRY _mesa_DeleteVertexArrays(GLsizei n, const GLuint *ids);
 
 void GLAPIENTRY _mesa_GenVertexArrays(GLsizei n, GLuint *arrays);
 
-void GLAPIENTRY _mesa_GenVertexArraysAPPLE(GLsizei n, GLuint *buffer);
-
 void GLAPIENTRY _mesa_CreateVertexArrays(GLsizei n, GLuint *arrays);
 
 GLboolean GLAPIENTRY _mesa_IsVertexArray( GLuint id );
diff --git a/src/mesa/main/tests/dispatch_sanity.cpp b/src/mesa/main/tests/dispatch_sanity.cpp
index 12a9ee7bae1..b33043ed28b 100644
--- a/src/mesa/main/tests/dispatch_sanity.cpp
+++ b/src/mesa/main/tests/dispatch_sanity.cpp
@@ -969,8 +969,6 @@ const struct function common_desktop_functions_possible[] = {
 };
 
 const struct function gl_compatibility_functions_possible[] = {
-   { "glBindVertexArrayAPPLE", 10, -1 },
-   { "glGenVertexArraysAPPLE", 10, -1 },
    { "glBindRenderbufferEXT", 10, -1 },
    { "glBindFramebufferEXT", 10, -1 },
    { "glNewList", 10, _gloffset_NewList },
-- 
2.30.2