Initial commit

graphics/scaler/aspect.h

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+/* 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 3 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, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#ifndef GRAPHICS_SCALER_ASPECT_H
+#define GRAPHICS_SCALER_ASPECT_H
+
+#include "common/scummsys.h"
+#include "graphics/scaler.h"
+
+/**
+ * TODO: explain
+ */
+FORCEINLINE int real2Aspect(int y) {
+	return y + (y + 1) / 5;
+}
+
+/**
+ * TODO: explain
+ */
+FORCEINLINE int aspect2Real(int y) {
+	return (y * 5 + 4) / 6;
+}
+
+/**
+ * TODO: explain
+ */
+void makeRectStretchable(int &x, int &y, int &w, int &h, bool interpolate);
+
+/**
+ * TODO: explain
+ */
+
+int stretch200To240(uint8 *buf,
+					uint32 pitch,
+					int width,
+					int height,
+					int srcX,
+					int srcY,
+					int origSrcY,
+					bool interpolate,
+					const Graphics::PixelFormat &format);
+
+int stretch200To240Nearest(uint8 *buf, uint32 pitch, int width, int height, int srcX, int srcY, int origSrcY, const Graphics::PixelFormat &format);
+
+#endif