gdkglcontext-x11: Make sure to enable the scissor test

diff --git a/gdk/x11/gdkglcontext-x11.c b/gdk/x11/gdkglcontext-x11.c
index 92d0b9e709d7f6dbc841e84f14f8c8af990f1b55..171ad05f09f59fee1203ebd882b63626b94e58e3 100644 (file)
--- a/gdk/x11/gdkglcontext-x11.c
+++ b/gdk/x11/gdkglcontext-x11.c
@@ -470,6 +470,8 @@ gdk_x11_gl_context_texture_from_surface (GdkGLContext *paint_context,
   glXBindTexImageEXT (glx_pixmap->display, glx_pixmap->drawable,
                      GLX_FRONT_LEFT_EXT, NULL);
 
+  glEnable (GL_SCISSOR_TEST);
+
   n_rects = cairo_region_num_rectangles (region);
   for (i = 0; i < n_rects; i++)
     {
@@ -509,6 +511,8 @@ gdk_x11_gl_context_texture_from_surface (GdkGLContext *paint_context,
       }
     }
 
+  glDisable (GL_SCISSOR_TEST);
+
   glXReleaseTexImageEXT (glx_pixmap->display, glx_pixmap->drawable,
                         GLX_FRONT_LEFT_EXT);