mesa: Patch BGLView to make LockGL recursive.

sys-libs/mesa/mesa-17.1.10.recipe

@@ -6,7 +6,7 @@ providing 3D rendering to Haiku applications."
 HOMEPAGE="https://www.mesa3d.org/"
 COPYRIGHT="1999-2018 Brian Paul"
 LICENSE="MIT"
-REVISION="1"
+REVISION="2"
 SOURCE_URI="https://mesa.freedesktop.org/archive/mesa-${portVersion}.tar.xz"
 CHECKSUM_SHA256="cbc0d681cc4df47d8deb5a36f45b420978128522fd665b2cd4c7096316f11bdb"
 PATCHES="mesa-$portVersion.patchset"

sys-libs/mesa/patches/mesa-17.1.10.patchset

@@ -555,3 +555,46 @@ index 2a388cb..0e4a531 100644
 -- 
 2.14.2
 
+
+From c47b10797fd59404235090cb8b9157372c0200d2 Mon Sep 17 00:00:00 2001
+From: Augustin Cavalier <waddlesplash@gmail.com>
+Date: Tue, 28 Aug 2018 21:32:38 -0400
+Subject: [PATCH] BGLView: Make LockGL recursive.
+
+This is the BeOS behavior, and the behavior of TinyGL's BGLView implementation
+also.
+
+Fixes Flurry and other applications crashing on startup.
+---
+ src/hgl/GLView.cpp | 6 +++---
+ 1 file changed, 3 insertions(+), 3 deletions(-)
+
+diff --git a/src/hgl/GLView.cpp b/src/hgl/GLView.cpp
+index 9ae5b5c..6afa182 100644
+--- a/src/hgl/GLView.cpp
++++ b/src/hgl/GLView.cpp
+@@ -67,18 +67,18 @@ BGLView::LockGL()
+ {
+ 	// TODO: acquire the OpenGL API lock it on this glview
+ 
+-	fDisplayLock.Lock();
+ 	if (fRenderer)
+ 		fRenderer->LockGL();
++	fDisplayLock.Lock();
+ }
+ 
+ 
+ void
+ BGLView::UnlockGL()
+ {
+-	if (fRenderer)
+-		fRenderer->UnlockGL();
+ 	fDisplayLock.Unlock();
++	if (fRenderer && !fDisplayLock.IsLocked())
++		fRenderer->UnlockGL();
+ 
+ 	// TODO: release the GL API lock to others glviews
+ }
+-- 
+2.16.4
+