GP2XWiz: Add downscale support to the backend using the PocketPCHalfARM scaler from the WinCE backend (Maybe this should be moved into /graphics/scalers at some point?). Also enable all the ARM optemised routines in this and the GP2X backend.

svn-id: r42863

1 files changed, 45 insertions, 0 deletions

diff --git a/backends/platform/gp2xwiz/gp2xwiz-scaler.h b/backends/platform/gp2xwiz/gp2xwiz-scaler.h
new file mode 100644
index 0000000000..604b9c450b
--- /dev/null
+++ b/backends/platform/gp2xwiz/gp2xwiz-scaler.h
@@ -0,0 +1,45 @@
+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * This program 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 program 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 program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * $URL$
+ * $Id$
+ *
+ */
+
+#ifndef GP2XWIZ_SCALER_H
+#define GP2XWIZ_SCALER_H
+
+#include "common/scummsys.h"
+#include "common/system.h"
+#include "graphics/scaler.h"
+#include "graphics/scaler/intern.h"
+
+// FIXME: For now keep hacks in this header to save polluting the SDL backend.
+enum {
+    GFX_HALF = 12
+};
+
+extern SDL_PixelFormat *screenPixelFormat;
+
+// TODO/FIXME: Move this platform specific scaler into /graphics/scaler and properly merge with the WinCE PocketPCHalf that it is based on.
+
+DECLARE_SCALER(HalfScale);
+
+#endif