Moved common/scaler* to graphics/

svn-id: r20797

1 files changed, 84 insertions, 0 deletions

diff --git a/graphics/scaler.h b/graphics/scaler.h
new file mode 100644
index 0000000000..9f743216ac
--- /dev/null
+++ b/graphics/scaler.h
@@ -0,0 +1,84 @@
+/* ScummVM - Scumm Interpreter
+ * Copyright (C) 2002-2006 The ScummVM project
+ *
+ * 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 COMMON_SCALER_H
+#define COMMON_SCALER_H
+
+#include "common/stdafx.h"
+#include "common/scummsys.h"
+#include "graphics/surface.h"
+
+extern void InitScalers(uint32 BitFormat);
+
+typedef void ScalerProc(const uint8 *srcPtr, uint32 srcPitch,
+							uint8 *dstPtr, uint32 dstPitch, int width, int height);
+
+#define DECLARE_SCALER(x)	\
+	extern void x(const uint8 *srcPtr, uint32 srcPitch, uint8 *dstPtr, \
+					uint32 dstPitch, int width, int height)
+
+DECLARE_SCALER(_2xSaI);
+DECLARE_SCALER(Super2xSaI);
+DECLARE_SCALER(SuperEagle);
+DECLARE_SCALER(AdvMame2x);
+DECLARE_SCALER(AdvMame3x);
+DECLARE_SCALER(Normal1x);
+DECLARE_SCALER(Normal2x);
+DECLARE_SCALER(Normal3x);
+DECLARE_SCALER(Normal1o5x);
+DECLARE_SCALER(TV2x);
+DECLARE_SCALER(DotMatrix);
+
+#ifndef DISABLE_HQ_SCALERS
+DECLARE_SCALER(HQ2x);
+DECLARE_SCALER(HQ3x);
+#endif
+
+FORCEINLINE int real2Aspect(int y) {
+	return y + (y + 1) / 5;
+}
+
+FORCEINLINE int aspect2Real(int y) {
+	return (y * 5 + 4) / 6;
+}
+
+extern void makeRectStretchable(int &x, int &y, int &w, int &h);
+
+extern int stretch200To240(uint8 *buf, uint32 pitch, int width, int height, int srcX, int srcY, int origSrcY);
+
+// creates a 160x100 thumbnail for 320x200 games
+// and 160x120 thumbnail for 320x240 and 640x480 games
+// only 565 mode
+enum {
+	kThumbnailWidth = 160,
+	kThumbnailHeight1 = 100,
+	kThumbnailHeight2 = 120
+};
+extern void createThumbnail(const uint8* src, uint32 srcPitch, uint8* dstPtr, uint32 dstPitch, int width, int height);
+
+/**
+ * creates a thumbnail from the current screen (without overlay)
+ * @param surf	a surface (will always have 16 bpp after this for now)
+ * @return		false if a error occured
+ */
+extern bool createThumbnailFromScreen(Graphics::Surface* surf);
+
+#endif