[PATCH] winemac.drv: Actually make the GL context current even if no drawables were given.

[Charles Davis]

The spec for GL_ARB_framebuffer_object (and thus, OpenGL 3.x and up) is
quite clear on what happens when a context is made current with no
drawable(s). In fact, the WGL_ARB_create_context extension amends
WGL_ARB_make_current_read (as well as the base spec for wglMakeCurrent)
specifically to allow this.

Signed-off-by: Charles Davis <cdavis5x at gmail.com>
---
 dlls/winemac.drv/cocoa_opengl.m | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/dlls/winemac.drv/cocoa_opengl.m b/dlls/winemac.drv/cocoa_opengl.m
index ec2b191..4694dfd 100644
--- a/dlls/winemac.drv/cocoa_opengl.m
+++ b/dlls/winemac.drv/cocoa_opengl.m
@@ -235,7 +235,10 @@ void macdrv_make_context_current(macdrv_opengl_context c, macdrv_view v)
         }
 
         if (context)
+        {
             [context removeFromViews:YES];
+            [context makeCurrentContext];
+        }
     }
 
     [pool release];
-- 
2.7.1