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AtlasExample_iphone_project.zip

__MACOSX

AtlasExample

._.DS_Store

._todo.txt

AtlasExample

._.DS_Store

._AtlasExample-Prefix.pch

._Game.cpp

._ImageFactory.h

._ImagePNG.mm

._main.m

en.lproj

._InfoPlist.strings

Shaders

._Shader.fsh

._Shader.vsh

AtlasExampleTests

._AtlasExampleTests.h

._AtlasExampleTests.m

._AtlasExampleTests-Prefix.pch

en.lproj

._InfoPlist.strings

AtlasExample

.DS_Store

AtlasExample.xcodeproj

project.pbxproj

project.xcworkspace

contents.xcworkspacedata

xcuserdata

lefty.xcuserdatad

UserInterfaceState.xcuserstate

xcuserdata

lefty.xcuserdatad

xcdebugger

Breakpoints.xcbkptlist

xcschemes

AtlasExample.xcscheme

xcschememanagement.plist

AtlasExample

.DS_Store

Allocator.h

atlas.xml

AtlasAppDelegate.h

AtlasAppDelegate.mm

AtlasExample-Info.plist

AtlasExample-Prefix.pch

AtlasImage.h

AtlasMaster.cpp

AtlasMaster.h

CommonBuffer.cpp

EAGLView.h

EAGLView.mm

en.lproj

InfoPlist.strings

MainWindow.xib

Game.cpp

Game.h

ImageGL.cpp

ImageGL.h

ImagePNG.h

ImagePNG.mm

ImagePVR.cpp

ImagePVR.h

images0.tga

ImageTarga.h

main.m

precompile.h

PVRHeader.cpp

PVRHeader.h

RacException.cpp

ResManager.h

Shaders

Shader.fsh

Shader.vsh

TargaReader.cpp

TargaReader.h

Util.cpp

Util.h

XParser.cpp

XParser.h

AtlasExampleTests

AtlasExampleTests.h

AtlasExampleTests.m

AtlasExampleTests-Info.plist

AtlasExampleTests-Prefix.pch

en.lproj

InfoPlist.strings

AtlasExample_iPhone_project_2.1.zip

._.DS_Store

._todo.txt

._.DS_Store

._atlas.xml

._AtlasExample-Prefix.pch

._Game.cpp

._ImageFactory.h

._ImagePNG.mm

._main.m

._InfoPlist.strings

._Shader.fsh

._Shader.vsh

._AtlasExampleTests.h

._AtlasExampleTests.m

._AtlasExampleTests-Prefix.pch

._InfoPlist.strings

.DS_Store

project.pbxproj

contents.xcworkspacedata

UserInterfaceState.xcuserstate

Breakpoints.xcbkptlist

AtlasExample.xcscheme

xcschememanagement.plist

.DS_Store

Allocator.h

atlas.xml

AtlasAppDelegate.h

AtlasAppDelegate.mm

AtlasExample-Info.plist

AtlasExample-Prefix.pch

AtlasImage.h

AtlasMaster.cpp

AtlasMaster.h

CommonBuffer.cpp

EAGLView.h

EAGLView.mm

InfoPlist.strings

MainWindow.xib

Game.cpp

Game.h

ImageGL.cpp

ImageGL.h

ImagePNG.h

ImagePNG.mm

ImagePVR.cpp

ImagePVR.h

imagesNelly0.tga

ImageTarga.h

main.m

precompile.h

PVRHeader.cpp

PVRHeader.h

RacException.cpp

ResManager.h

Shader.fsh

Shader.vsh

TargaReader.cpp

TargaReader.h

Util.cpp

Util.h

XParser.cpp

XParser.h

AtlasExampleTests.h

AtlasExampleTests.m

AtlasExampleTests-Info.plist

AtlasExampleTests-Prefix.pch

InfoPlist.strings

AtlasMaker.zip

AtlasMaker

.classpath

.project

bin

discard.java

icon.png

images

icon.png

output.png

settings.png

output.png

settings.png

src

AboutDialog.java

AtlasFrame.java

AtlasImage.java

AtlasMaker.java

CompareArea.java

CompareHeight.java

CompareName.java

CompareWidth.java

DirNode.java

ImageFormat.java

Main.java

OptionsDialog.java

TargaWriter.java

TexturePiece.java

TexturePuzzle.java

TextureSize.java

TextureSizeSq.java

TreeNode.java

AtlasMaker_jar.zip

AtlasMaker.jar

AtlasMaker_jar_2.0.zip

AtlasMaker.jar

AtlasMaker_jar_2.1.zip

AtlasMaker.jar

AtlasMaker_jar_2.2.1.zip

AtlasMaker.jar

AtlasMaker_jar_2.2.zip

AtlasMaker.jar

AtlasMaker_source.2.2.1.zip

.classpath

.project

.settings

org.eclipse.jdt.core.prefs

atlasMaker.properties

discard.java

icon.png

icon.png

settings.png

settings.png

AboutDialog.java

AtlasFrame.java

AtlasImage.java

AtlasMaker.java

BinPackerList.java

CompareArea.java

CompareHeight.java

CompareName.java

CompareWidth.java

DirNode.java

ImageFormat.java

Main.java

OptionsDialog.java

TargaWriter.java

TexturePiece.java

TextureSize.java

TextureSizeNPOT.java

TextureSizePOT.java

TextureSizeSq.java

TreeNode.java

TweekDimensions.java

AtlasMaker_source.zip

.classpath

.project

discard.java

icon.png

icon.png

output.png

settings.png

output.png

settings.png

AboutDialog.java

AtlasFrame.java

AtlasImage.java

AtlasMaker.java

CompareArea.java

CompareHeight.java

CompareName.java

CompareWidth.java

DirNode.java

ImageFormat.java

Main.java

OptionsDialog.java

TargaWriter.java

TexturePiece.java

TexturePuzzle.java

TextureSize.java

TextureSizeSq.java

TreeNode.java

AtlasMaker_source_2.0.zip

.classpath

.project

atlasMaker.properties

discard.java

icon.png

icon.png

settings.png

settings.png

AboutDialog.java

AtlasFrame.java

AtlasImage.java

AtlasMaker.java

BinPackerList.java

CompareArea.java

CompareHeight.java

CompareName.java

CompareWidth.java

DirNode.java

ImageFormat.java

Main.java

OptionsDialog.java

TargaWriter.java

TexturePiece.java

TextureSize.java

TextureSizeNPOT.java

TextureSizePOT.java

TextureSizeSq.java

TreeNode.java

TweekDimensions.java

AtlasMaker_source_2.1.zip

.classpath

.project

org.eclipse.jdt.core.prefs

atlasMaker.properties

discard.java

icon.png

icon.png

settings.png

settings.png

AboutDialog.java

AtlasFrame.java

AtlasImage.java

AtlasMaker.java

BinPackerList.java

CompareArea.java

CompareHeight.java

CompareName.java

CompareWidth.java

DirNode.java

ImageFormat.java

Main.java

OptionsDialog.java

TargaWriter.java

TexturePiece.java

TextureSize.java

TextureSizeNPOT.java

TextureSizePOT.java

TextureSizeSq.java

TreeNode.java

TweekDimensions.java

AtlasMaker_source_2.2.zip

.classpath

.project

org.eclipse.jdt.core.prefs

icon.png

icon.png

settings.png

settings.png

AboutDialog.java

AtlasFrame.java

AtlasImage.java

AtlasMaker.java

BinPackerList.java

CompareArea.java

CompareHeight.java

CompareName.java

CompareWidth.java

DirNode.java

ImageFormat.java

Main.java

OptionsDialog.java

TargaWriter.java

TexturePiece.java

TextureSize.java

TextureSizeNPOT.java

TextureSizePOT.java

TextureSizeSq.java

TreeNode.java

TweekDimensions.java

import java.util.ArrayList;
import java.util.Collections;



public class BinPacker
{
	private TreeNode treeNode;
	private TexturePiece texturePiece;
	public TexturePiece getTexturePiece()
	{
		return texturePiece;
	}
	public BinPacker(int width, int height)
	{
		treeNode = new TreeNode(0, 0, width, height, "");
		texturePiece = new TexturePiece(width, height);
	}
	public boolean add(AtlasImage image)
	{
		boolean added = treeNode.add(image);
		if (added)
			texturePiece.add(image);
		return added;
	}
	public void pack(ArrayList<AtlasImage> listImage)
	{
		int ixImage;
		for (ixImage = listImage.size()-1; ixImage >= 0; ixImage--)
		{
			if (!add(listImage.get(ixImage)))
				return;
			listImage.remove(ixImage);			
		} 
	}		
	public void resize(int width, int height, ArrayList<AtlasImage> listImage)
	{
		// puts images removed back on the list
		texturePiece.remove(listImage);
		// need to resort, because they may have been put in wrong order
		Collections.sort(listImage, new CompareArea());
		// resize resets everything
		treeNode.resize(width, height);
		texturePiece.resize(width, height);
	}
}

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License

This article, along with any associated source code and files, is licensed under The BSD License

About the Author

ed welch

Software Developer Astronautz
Spain

After working in the software industry for many years, I've started my own games company that specialises in strategy games for mobile platforms.

A utility to create texture atlases for 2D OpenGL games

Type	Article
Licence	BSD
First Posted	15 Feb 2012
Views	42,300
Downloads	2,808
Bookmarked	37 times

C++JavaMobileOpenGL
iPhoneAndroid

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