Initial Mercurial commit.

src/modules/image/ImageData.cpp

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+/**
+* Copyright (c) 2006-2009 LOVE Development Team
+* 
+* This software is provided 'as-is', without any express or implied
+* warranty.  In no event will the authors be held liable for any damages
+* arising from the use of this software.
+* 
+* Permission is granted to anyone to use this software for any purpose,
+* including commercial applications, and to alter it and redistribute it
+* freely, subject to the following restrictions:
+* 
+* 1. The origin of this software must not be misrepresented; you must not
+*    claim that you wrote the original software. If you use this software
+*    in a product, an acknowledgment in the product documentation would be
+*    appreciated but is not required.
+* 2. Altered source versions must be plainly marked as such, and must not be
+*    misrepresented as being the original software.
+* 3. This notice may not be removed or altered from any source distribution.
+**/
+
+#include "ImageData.h"
+
+namespace love
+{
+namespace image
+{
+	void ImageData::paste(ImageData * src, int dx, int dy, int sx, int sy, int sw, int sh)
+	{
+		pixel * s = (pixel *)src->getData();
+		pixel * d = (pixel *)getData();
+
+		for(int i = 0; i < sh; i++)
+		{
+			for(int j = 0; j < sw; j++)
+			{
+				if(inside(dx+j, dy+i) && src->inside(sx+j, sy+i))
+				{
+					d[(dy+i)*getWidth() + (dx+j)] = s[(sy+i)*src->getWidth() + (sx+j)];
+				}
+			}
+		}
+	}
+
+	bool ImageData::inside(int x, int y) const
+	{
+		return (x >= 0 && x < getWidth() && y >= 0 && y < getHeight());
+	}
+
+} // image
+} // love