From 6a43c027238d2302f9e01ee7a780370d330def6c Mon Sep 17 00:00:00 2001
From: Chris Wilson <chris@chris-wilson.co.uk>
Date: Sat, 12 May 2007 09:43:30 +0100
Subject: [PATCH] [cairo-xlib-screen] Increase number of GC depths.

Add support for depths 12 and 30, and a separate unknown.
---
 src/cairo-xlib-private.h |  2 +-
 src/cairo-xlib-screen.c  | 14 ++++++++------
 2 files changed, 9 insertions(+), 7 deletions(-)

diff --git a/src/cairo-xlib-private.h b/src/cairo-xlib-private.h
index 4594f13c8..6157775a4 100644
--- a/src/cairo-xlib-private.h
+++ b/src/cairo-xlib-private.h
@@ -76,7 +76,7 @@ struct _cairo_xlib_screen_info {
 
     cairo_font_options_t font_options;
 
-    GC gc[6];
+    GC gc[9];
     unsigned int gc_needs_clip_reset;
 };
 
diff --git a/src/cairo-xlib-screen.c b/src/cairo-xlib-screen.c
index f75774206..2e8c913d3 100644
--- a/src/cairo-xlib-screen.c
+++ b/src/cairo-xlib-screen.c
@@ -364,12 +364,14 @@ static int
 depth_to_index (int depth)
 {
     switch(depth){
-	case 1:  return 0;
-	case 8:  return 1;
-	case 15: return 2;
-	case 16: return 3;
-	case 24: return 4;
-	case 32: return 5;
+	case 1:  return 1;
+	case 8:  return 2;
+	case 12: return 3;
+	case 15: return 4;
+	case 16: return 5;
+	case 24: return 6;
+	case 30: return 7;
+	case 32: return 8;
     }
     return 0;
 }