From 71ac8e263d6e90461e6dc787d6cf1b12268e8290 Mon Sep 17 00:00:00 2001
From: Mathieu Virbel <mat@kivy.org>
Date: Sat, 22 Sep 2012 00:47:46 +0200
Subject: [PATCH] stencilinstruction: add the possibility to configure the
 stencil glop code

---
 kivy/graphics/stencil_instructions.pxd | 11 +++++++++++
 kivy/graphics/stencil_instructions.pyx |  5 ++++-
 2 files changed, 15 insertions(+), 1 deletion(-)
 create mode 100644 kivy/graphics/stencil_instructions.pxd

diff --git a/kivy/graphics/stencil_instructions.pxd b/kivy/graphics/stencil_instructions.pxd
new file mode 100644
index 000000000..1cf556e4c
--- /dev/null
+++ b/kivy/graphics/stencil_instructions.pxd
@@ -0,0 +1,11 @@
+from kivy.graphics.instructions cimport Instruction
+
+cdef class StencilPush(Instruction):
+    cdef void apply(self)
+cdef class StencilPop(Instruction):
+    cdef void apply(self)
+cdef class StencilUse(Instruction):
+    cdef unsigned int _op
+    cdef void apply(self)
+cdef class StencilUnUse(Instruction):
+    cdef void apply(self)
diff --git a/kivy/graphics/stencil_instructions.pyx b/kivy/graphics/stencil_instructions.pyx
index 092fe3146..6ea16d7e2 100644
--- a/kivy/graphics/stencil_instructions.pyx
+++ b/kivy/graphics/stencil_instructions.pyx
@@ -147,11 +147,14 @@ cdef class StencilUse(Instruction):
     '''Use current stencil buffer as a mask. Check module documentation for more
     information.
     '''
+    def __init__(self, **kwargs):
+        super(StencilUse, self).__init__(**kwargs)
+        self._op = kwargs.get('op') or GL_EQUAL
     cdef void apply(self):
         global _stencil_in_push
         _stencil_in_push = 0
         glColorMask(1, 1, 1, 1)
-        glStencilFunc(GL_EQUAL, _stencil_level, 0xff)
+        glStencilFunc(self._op, _stencil_level, 0xff)
         glStencilOp(GL_KEEP, GL_KEEP, GL_KEEP)
 
 cdef class StencilUnUse(Instruction):