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Texture Atlas Maker

, 1 Apr 2012
A utility to create texture atlases for 2D OpenGL games
AtlasExample_iphone_project.zip
AtlasExample
.DS_Store
__MACOSX
AtlasExample
._.DS_Store
AtlasExample
.DS_Store
AtlasExample
._.DS_Store
AtlasAppDelegate.mm
AtlasExample-Info.plist
AtlasExample-Prefix.pch
._AtlasExample-Prefix.pch
EAGLView.mm
en.lproj
InfoPlist.strings
en.lproj
._InfoPlist.strings
MainWindow.xib
ImagePNG.mm
._ImagePNG.mm
images0.tga
main.m
._main.m
Shaders
Shader.fsh
Shaders
._Shader.fsh
Shader.vsh
._Shader.vsh
AtlasExample.xcodeproj
project.pbxproj
project.xcworkspace
contents.xcworkspacedata
xcuserdata
lefty.xcuserdatad
UserInterfaceState.xcuserstate
xcuserdata
lefty.xcuserdatad
xcdebugger
Breakpoints.xcbkptlist
xcschemes
AtlasExample.xcscheme
xcschememanagement.plist
AtlasExampleTests
AtlasExampleTests-Info.plist
AtlasExampleTests-Prefix.pch
AtlasExampleTests
._AtlasExampleTests-Prefix.pch
AtlasExampleTests.m
._AtlasExampleTests.m
en.lproj
InfoPlist.strings
en.lproj
._InfoPlist.strings
AtlasExample_iPhone_project_2.1.zip
.DS_Store
._.DS_Store
.DS_Store
._.DS_Store
AtlasAppDelegate.mm
AtlasExample-Info.plist
AtlasExample-Prefix.pch
._AtlasExample-Prefix.pch
EAGLView.mm
InfoPlist.strings
._InfoPlist.strings
MainWindow.xib
ImagePNG.mm
._ImagePNG.mm
imagesNelly0.tga
main.m
._main.m
Shader.fsh
._Shader.fsh
Shader.vsh
._Shader.vsh
project.pbxproj
contents.xcworkspacedata
UserInterfaceState.xcuserstate
Breakpoints.xcbkptlist
AtlasExample.xcscheme
xcschememanagement.plist
AtlasExampleTests-Info.plist
AtlasExampleTests-Prefix.pch
._AtlasExampleTests-Prefix.pch
AtlasExampleTests.m
._AtlasExampleTests.m
InfoPlist.strings
._InfoPlist.strings
AtlasMaker.zip
AtlasMaker
.classpath
.project
bin
icon.png
images
icon.png
output.png
settings.png
output.png
settings.png
src
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
icon.png
icon.png
settings.png
settings.png
AtlasMaker_source.zip
.classpath
.project
icon.png
icon.png
output.png
settings.png
output.png
settings.png
AtlasMaker_source_2.0.zip
.classpath
.project
atlasMaker.properties
icon.png
icon.png
settings.png
settings.png
AtlasMaker_source_2.1.zip
.classpath
.project
org.eclipse.jdt.core.prefs
atlasMaker.properties
icon.png
icon.png
settings.png
settings.png
AtlasMaker_source_2.2.zip
.classpath
.project
org.eclipse.jdt.core.prefs
icon.png
icon.png
settings.png
settings.png
#ifndef _ALLOCATOR_H_INCLUDED_
#define _ALLOCATOR_H_INCLUDED_


template <class T>
class Allocator
{
public:
	Allocator() 
	{
		m_size = 0;
		m_pCache = NULL;
		m_currUsed = 0;
	}
	~Allocator() 
	{
		Release();
	}
	void Release() 
	{
		if (m_pCache != NULL)
		{
			free(m_pCache);
			m_size = 0;
			m_pCache = NULL;
			m_currUsed = 0;
		}
	}
	void Deallocate() { m_currUsed = 0; }
	void Init(int size)	
	{
		if (size > m_size)
		{
			T* pNewCache = (T*)malloc(size*sizeof(T));
			if (pNewCache == NULL)
				throw RacException("not enough memory ");
			if (m_currUsed > 0)
			{
				memcpy(pNewCache, m_pCache, m_currUsed*sizeof(T));
			}
			Release();
			m_pCache = pNewCache;
			m_size = size;
		}
	}
	T* New()
	{
//		assert(m_currUsed < m_size);
		if (m_currUsed >= m_size)
		{
			cout << "Warning: surpise allocation!!\n";
			assert(false);
			return NULL;
		}
		return &m_pCache[m_currUsed++];
	}
	T* GetCache()
	{
		return m_pCache;
	}
	T& Get(int index)
	{
		return m_pCache[index];
	}
	T* GetPtr(int index)
	{
		return &m_pCache[index];
	}
	void Remove()
	{
		m_currUsed--;
	}
private:
	T* m_pCache;
	int m_size;
	int m_currUsed;
};





#endif // _ALLOCATOR_H_INCLUDED_

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License

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

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About the Author

ed welch
Software Developer Astronautz
Spain 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.

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