first commit

Minecraft.Client/Stitcher.h

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+#pragma once
+using namespace std;
+
+class StitchSlot;
+class Texture;
+#include "TextureHolder.h"
+
+class Stitcher
+{
+public:
+	static const int STITCH_SUCCESS = 0;
+	static const int STITCH_RETRY = 1;
+	static const int STITCH_ABORT = 2;
+
+	static const int MAX_MIPLEVEL = 0; // This should be 4 again later when we *ACTUALLY* mipmap
+	static const int MIN_TEXEL = 1 << MAX_MIPLEVEL;
+
+private:
+	set<TextureHolder *, TextureHolderLessThan> texturesToBeStitched; // = new HashSet<TextureHolder>(256);
+	vector<StitchSlot *> storage; // = new ArrayList<StitchSlot>(256);
+	int storageX;
+	int storageY;
+
+	int maxWidth;
+	int maxHeight;
+	bool forcePowerOfTwo;
+	int forcedScale;
+
+	Texture *stitchedTexture;
+
+	wstring name;
+
+	void _init(const wstring &name, int maxWidth, int maxHeight, bool forcePowerOfTwo, int forcedScale);
+
+public:
+	Stitcher(const wstring &name, int maxWidth, int maxHeight, bool forcePowerOfTwo);
+	Stitcher(const wstring &name, int maxWidth, int maxHeight, bool forcePowerOfTwo, int forcedScale);
+
+	int getWidth();
+	int getHeight();
+	void addTexture(TextureHolder *textureHolder);
+	Texture *constructTexture(bool mipmap = true); // 4J Added mipmap param
+	void stitch();
+	vector<StitchSlot *> *gatherAreas();
+
+private:	
+	// Based on: http://graphics.stanford.edu/~seander/bithacks.html#RoundUpPowerOf2
+	int smallestEncompassingPowerOfTwo(int input);
+
+	bool addToStorage(TextureHolder *textureHolder);
+
+	/**
+	* Expand the current storage to take in account the new texture.
+	* This should only be called if it didn't fit anywhere.
+	*
+	* @param textureHolder
+	* @return Boolean indicating if it could accommodate for the growth
+	*/
+	bool expand(TextureHolder *textureHolder);
+};