GRAPHICS: adds 2xsai as scaler plugin

base/plugins.cpp

@@ -164,6 +164,7 @@ public:
 		// Scaler plugins
 		LINK_PLUGIN(NORMAL)
 		LINK_PLUGIN(HQ)
+		LINK_PLUGIN(SAI)
 
 		return pl;
 	}

graphics/module.mk

@@ -86,6 +86,7 @@ endif
 ifdef USE_SCALERS
 MODULE_OBJS += \
 	scaler/2xsai.o \
+	scaler/sai.o \
 	scaler/aspect.o \
 	scaler/downscaler.o \
 	scaler/scale2x.o \

graphics/scaler/sai.cpp

@@ -0,0 +1,66 @@
+/* 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.
+ */
+
+#include "graphics/scaler/sai.h"
+#include "graphics/scaler.h"
+
+void SAIPlugin::initialize(Graphics::PixelFormat format) {
+	_format = format;
+}
+
+void SAIPlugin::deinitialize() {
+	//DestroyScalers();
+}
+
+void SAIPlugin::scale(const uint8 *srcPtr, uint32 srcPitch,
+							uint8 *dstPtr, uint32 dstPitch, int width, int height, int x, int y) {
+	if (!_doScale) {
+		Normal1x(srcPtr, srcPitch, dstPtr, dstPitch, width, height);
+		return;
+	}
+	switch (_factor) {
+		case 1:
+			Normal1x(srcPtr, srcPitch, dstPtr, dstPitch, width, height);
+			break;
+		case 2:
+			_2xSaI(srcPtr, srcPitch, dstPtr, dstPitch, width, height);
+			break;
+	}
+}
+
+int SAIPlugin::increaseFactor() {
+	if (_factor < 2)
+		++_factor;
+	return _factor;
+}
+
+int SAIPlugin::decreaseFactor() {
+	if (_factor > 1)
+		--_factor;
+	return _factor;
+}
+
+const char *SAIPlugin::getName() const {
+	return "SAI";
+}
+
+
+REGISTER_PLUGIN_STATIC(SAI, PLUGIN_TYPE_SCALER, SAIPlugin);

graphics/scaler/sai.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.
+ */
+
+#ifndef GRAPHICS_SCALER_SAI_H
+#define GRAPHICS_SCALER_SAI_H
+
+#include "graphics/scalerplugin.h"
+
+class SAIPlugin : public ScalerPluginObject {
+public:
+	SAIPlugin() { _factor = 1;}
+	virtual void initialize(Graphics::PixelFormat format);
+	virtual void deinitialize();
+	virtual void scale(const uint8 *srcPtr, uint32 srcPitch,
+							uint8 *dstPtr, uint32 dstPitch, int width, int height, int x, int y);
+	virtual int increaseFactor();
+	virtual int decreaseFactor();
+	virtual int getFactor() { return _factor; }
+	virtual bool canDrawCursor() { return false; }
+	virtual int extraPixels() { return 1; }
+	virtual const char *getName() const;
+private:
+	Graphics::PixelFormat _format;
+};
+
+
+#endif