Implement optimised drawing operations for OS X. Didn't see any reduction in
CPU usage unfortunately, but at least we're now using the native pixel format
of our server which avoids a conversion on the server side.


git-svn-id: svn://svn.code.sf.net/p/tigervnc/code/trunk@4504 3789f03b-4d11-0410-bbf8-ca57d06f2519
diff --git a/vncviewer/OSXPixelBuffer.h b/vncviewer/OSXPixelBuffer.h
new file mode 100644
index 0000000..a74830c
--- /dev/null
+++ b/vncviewer/OSXPixelBuffer.h
@@ -0,0 +1,37 @@
+/* Copyright 2011 Pierre Ossman <ossman@cendio.se> for Cendio AB
+ * 
+ * This is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ * 
+ * This software is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this software; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307,
+ * USA.
+ */
+
+#ifndef __OSXPIXELBUFFER_H__
+#define __OSXPIXELBUFFER_H__
+
+#include <rfb/PixelBuffer.h>
+
+class PlatformPixelBuffer: public rfb::ManagedPixelBuffer {
+public:
+  PlatformPixelBuffer(int width, int height);
+  ~PlatformPixelBuffer();
+
+  void draw(int src_x, int src_y, int x, int y, int w, int h);
+
+protected:
+  // This is really a CGImageRerf, but Apple headers conflict with FLTK
+  void *image;
+};
+
+
+#endif