Package com.jogamp.opengl.util.texture

Class TextureState

java.lang.Object

com.jogamp.opengl.util.texture.TextureState

public class TextureState
extends Object

Preserves a [ texture-unit, texture-target ] state.

The states keys are the retrieved active texture-unit and the given texture-target for which the following states are being queried:

   - texture-object
   - GL.GL_TEXTURE_MAG_FILTER
   - GL.GL_TEXTURE_MIN_FILTER
   - GL.GL_TEXTURE_WRAP_S
   - GL.GL_TEXTURE_WRAP_T
 

Constructor Summary

Constructors

Constructor	Description
TextureState(GL gl, int textureTarget)	Creates a texture state for the retrieved active texture-unit and the given texture-target.
TextureState(GL gl, int textureUnit, int textureTarget)	Creates a texture state for the given active texture-unit and the given texture-target.

Method Summary

Modifier and Type	Method	Description
int	getMagFilter()	Returns the state's mag-filter param.
int	getMinFilter()	Returns the state's min-filter param.
int	getObject()	Returns the state's texture-object.
int	getTarget()	Returns the texture-target of this state, key value.
static int	getTextureTargetQueryName(int textureTarget)	Returns the pname to query the textureTarget currently bound to the active texture-unit.
int	getUnit()	Returns the texture-unit of this state, key value.
int	getWrapS()	Returns the state's wrap-s param.
int	getWrapT()	Returns the state's wrap-t param.
void	restore(GL gl)	Restores the texture-unit's texture-target state.
String	toString()

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

TextureState

public TextureState(GL gl,
                    int textureTarget)
             throws GLException

Creates a texture state for the retrieved active texture-unit and the given texture-target. See TextureState.

Parameters:

gl - current GL context's GL object

textureTarget -

Throws:

GLException - if textureTarget is not supported

TextureState

public TextureState(GL gl,
                    int textureUnit,
                    int textureTarget)
             throws GLException

Creates a texture state for the given active texture-unit and the given texture-target. See TextureState.

Parameters:

gl - current GL context's GL object

textureUnit - of range [ GL.GL_TEXTURE0.. ]

textureTarget -

Throws:

GLException - if textureTarget is not supported

Method Detail

getTextureTargetQueryName

public static final int getTextureTargetQueryName(int textureTarget)

Returns the pname to query the textureTarget currently bound to the active texture-unit.

Returns 0 is textureTarget is not supported.

restore

public final void restore(GL gl)

Restores the texture-unit's texture-target state.

First the texture-unit is activated, then all states are restored.

Parameters:

gl - current GL context's GL object

getUnit

public final int getUnit()

Returns the texture-unit of this state, key value. Unit is of range [ GL.GL_TEXTURE0.. ].

getTarget

public final int getTarget()

Returns the texture-target of this state, key value.

getObject

public final int getObject()

Returns the state's texture-object.

getMagFilter

public final int getMagFilter()

Returns the state's mag-filter param.

getMinFilter

public final int getMinFilter()

Returns the state's min-filter param.

getWrapS

public final int getWrapS()

Returns the state's wrap-s param.

getWrapT

public final int getWrapT()

Returns the state's wrap-t param.

toString

public final String toString()

Overrides:

toString in class Object