[PATH 1/2] gl/msaa: Small improvements to clipping

This is a patch to improve clipping for cairo/gl msaa backend


From 82f9de286eb217d8c1218b4b61cb001129874857 Mon Sep 17 00:00:00 2001
From: "Henry (Yu) Song" <[email protected]>
Date: Thu, 3 Nov 2011 12:02:30 -0700
Subject: [PATCH 1/2] gl/msaa: Small improvements to clipping

When clipping support CAIRO_ANTIALIAS_DEFAULT as well,
since this is the sort of clip that's produced when even
when the context is using CAIRO_ANTIALIAS_NONE. Also
correctly reset the color mask when clipping fails.
---
src/cairo-gl-msaa-compositor.c |    4 +++-
1 files changed, 3 insertions(+), 1 deletions(-)

diff --git a/src/cairo-gl-msaa-compositor.c b/src/cairo-gl-msaa-compositor.c
index ac1468f..2c8e4f5 100644
--- a/src/cairo-gl-msaa-compositor.c
+++ b/src/cairo-gl-msaa-compositor.c
@@ -166,7 +166,8 @@ _draw_clip (cairo_gl_context_t          *ctx,
     if (unlikely (status))
     return status;
-    if (antialias != CAIRO_ANTIALIAS_NONE) {
+    if (antialias != CAIRO_ANTIALIAS_NONE &&
+     antialias != CAIRO_ANTIALIAS_DEFAULT) {
     _cairo_polygon_fini (&polygon);
     return CAIRO_INT_STATUS_UNSUPPORTED;
     }
@@ -215,6 +216,7 @@ _draw_clip_to_stencil_buffer (cairo_gl_context_t    *ctx,
     status = _draw_clip (ctx, setup, clip);
     if (unlikely (status)) {
     _disable_stencil_buffer ();
+     glColorMask (1, 1, 1, 1);
     return status;
     }
--
1.7.5.4

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