GLState (library API)

java.lang.Object
- org.andengine.opengl.util.GLState

```
public class GLState
extends java.lang.Object
```
(c) 2010 Nicolas Gramlich (c) 2011 Zynga Inc.

Since:

18:00:43 - 08.03.2010

Field Summary

Fields
Modifier and Type Field and Description

static int GL_UNPACK_ALIGNMENT_DEFAULT

Fields
Modifier and Type	Field and Description
`static int`	`GL_UNPACK_ALIGNMENT_DEFAULT`

Constructor Summary

Constructors
Constructor and Description

GLState()

Constructors
Constructor and Description
`GLState()`

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`void`	`activeTexture(int pGLActiveTexture)`
`void`	`bindArrayBuffer(int pHardwareBufferID)`
`void`	`bindFramebuffer(int pFramebufferID)`
`void`	`bindIndexBuffer(int pHardwareBufferID)`
`void`	`bindTexture(int pHardwareTextureID)`
`void`	`blendFunction(int pSourceBlendMode, int pDestinationBlendMode)`
`void`	`checkError()`
`void`	`checkFramebufferStatus()`
`void`	`clearError()`
`void`	`deleteArrayBuffer(int pHardwareBufferID)`
`void`	`deleteFramebuffer(int pHardwareFramebufferID)`
`void`	`deleteIndexBuffer(int pHardwareBufferID)`
`void`	`deleteProgram(int pShaderProgramID)`
`void`	`deleteTexture(int pHardwareTextureID)`
`boolean`	`disableBlend()`
`boolean`	`disableCulling()`
`boolean`	`disableDepthTest()`
`boolean`	`disableDither()`
`boolean`	`disableScissorTest()`
`boolean`	`enableBlend()`
`boolean`	`enableCulling()`
`boolean`	`enableDepthTest()`
`boolean`	`enableDither()`
`boolean`	`enableScissorTest()`
`void`	`finish()` Tells the OpenGL driver to send all pending commands to the GPU immediately, and then blocks until the effects of those commands have been completed on the GPU.
`void`	`flush()` Tells the OpenGL driver to send all pending commands to the GPU immediately.
`int`	`generateArrayBuffer(int pSize, int pUsage)`
`int`	`generateBuffer()`
`int`	`generateFramebuffer()`
`int`	`generateIndexBuffer(int pSize, int pUsage)`
`int`	`generateTexture()`
`int`	`getActiveFramebuffer()`
`int`	`getActiveTexture()`
`int`	`getError()`
`java.lang.String`	`getExtensions()`
`int`	`getFramebufferStatus()`
`int`	`getInteger(int pAttribute)`
`int`	`getMaximumFragmentShaderUniformVectorCount()`
`int`	`getMaximumTextureSize()`
`int`	`getMaximumTextureUnits()`
`int`	`getMaximumVertexAttributeCount()`
`int`	`getMaximumVertexShaderUniformVectorCount()`
`float[]`	`getModelViewGLMatrix()`
`float[]`	`getModelViewProjectionGLMatrix()`
`float[]`	`getProjectionGLMatrix()`
`java.lang.String`	`getRenderer()`
`java.lang.String`	`getVersion()`
`void`	`glTexImage2D(int pTarget, int pLevel, android.graphics.Bitmap pBitmap, int pBorder, PixelFormat pPixelFormat)` Note: does not pre-multiply the alpha channel!
`void`	`glTexSubImage2D(int pTarget, int pLevel, int pX, int pY, android.graphics.Bitmap pBitmap, PixelFormat pPixelFormat)` Note: does not pre-multiply the alpha channel!
`boolean`	`isBlendEnabled()`
`boolean`	`isCullingEnabled()`
`boolean`	`isDepthTestEnabled()`
`boolean`	`isDitherEnabled()`
`boolean`	`isScissorTestEnabled()`
`boolean`	`isTexture(int pHardwareTextureID)`
`void`	`lineWidth(float pLineWidth)`
`void`	`loadModelViewGLMatrixIdentity()`
`void`	`loadProjectionGLMatrixIdentity()`
`void`	`orthoModelViewGLMatrixf(float pLeft, float pRight, float pBottom, float pTop, float pZNear, float pZFar)`
`void`	`orthoProjectionGLMatrixf(float pLeft, float pRight, float pBottom, float pTop, float pZNear, float pZFar)`
`void`	`popModelViewGLMatrix()`
`void`	`popProjectionGLMatrix()`
`void`	`pushModelViewGLMatrix()`
`void`	`pushProjectionGLMatrix()`
`void`	`reset(RenderOptions pRenderOptions, ConfigChooser pConfigChooser, javax.microedition.khronos.egl.EGLConfig pEGLConfig)`
`void`	`resetGLMatrixStacks()`
`void`	`resetModelViewGLMatrixStack()`
`void`	`resetProjectionGLMatrixStack()`
`void`	`rotateModelViewGLMatrixf(float pAngle, float pX, float pY, float pZ)`
`void`	`rotateProjectionGLMatrixf(float pAngle, float pX, float pY, float pZ)`
`void`	`scaleModelViewGLMatrixf(float pScaleX, float pScaleY, int pScaleZ)`
`void`	`scaleProjectionGLMatrixf(float pScaleX, float pScaleY, float pScaleZ)`
`boolean`	`setBlendEnabled(boolean pEnabled)`
`boolean`	`setCullingEnabled(boolean pEnabled)`
`boolean`	`setDepthTestEnabled(boolean pEnabled)`
`boolean`	`setDitherEnabled(boolean pEnabled)`
`boolean`	`setScissorTestEnabled(boolean pEnabled)`
`void`	`skewModelViewGLMatrixf(float pSkewX, float pSkewY)`
`void`	`skewProjectionGLMatrixf(float pSkewX, float pSkewY)`
`void`	`translateModelViewGLMatrixf(float pX, float pY, float pZ)`
`void`	`translateProjectionGLMatrixf(float pX, float pY, float pZ)`
`void`	`useProgram(int pShaderProgramID)`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail
- GL_UNPACK_ALIGNMENT_DEFAULT
```
public static final int GL_UNPACK_ALIGNMENT_DEFAULT
```
  See Also:
  
  Constant Field Values

Constructor Detail
- GLState
```
public GLState()
```

Method Detail

getVersion
```
public java.lang.String getVersion()
```

getRenderer
```
public java.lang.String getRenderer()
```

getExtensions

public java.lang.String getExtensions()

getMaximumVertexAttributeCount

public int getMaximumVertexAttributeCount()

getMaximumVertexShaderUniformVectorCount

public int getMaximumVertexShaderUniformVectorCount()

getMaximumFragmentShaderUniformVectorCount

public int getMaximumFragmentShaderUniformVectorCount()

getMaximumTextureUnits
```
public int getMaximumTextureUnits()
```

getMaximumTextureSize
```
public int getMaximumTextureSize()
```

reset

public void reset(RenderOptions pRenderOptions,
                  ConfigChooser pConfigChooser,
                  javax.microedition.khronos.egl.EGLConfig pEGLConfig)

isScissorTestEnabled
```
public boolean isScissorTestEnabled()
```

enableScissorTest
```
public boolean enableScissorTest()
```
Returns:

the previous state.

disableScissorTest
```
public boolean disableScissorTest()
```
Returns:

the previous state.

setScissorTestEnabled

public boolean setScissorTestEnabled(boolean pEnabled)

Returns:: the previous state.

isBlendEnabled
```
public boolean isBlendEnabled()
```

enableBlend
```
public boolean enableBlend()
```
Returns:

the previous state.

disableBlend
```
public boolean disableBlend()
```
Returns:

the previous state.

setBlendEnabled

public boolean setBlendEnabled(boolean pEnabled)

Returns:: the previous state.

isCullingEnabled
```
public boolean isCullingEnabled()
```

enableCulling
```
public boolean enableCulling()
```
Returns:

the previous state.

disableCulling
```
public boolean disableCulling()
```
Returns:

the previous state.

setCullingEnabled

public boolean setCullingEnabled(boolean pEnabled)

Returns:: the previous state.

isDitherEnabled
```
public boolean isDitherEnabled()
```

enableDither
```
public boolean enableDither()
```
Returns:

the previous state.

disableDither
```
public boolean disableDither()
```
Returns:

the previous state.

setDitherEnabled

public boolean setDitherEnabled(boolean pEnabled)

Returns:: the previous state.

isDepthTestEnabled
```
public boolean isDepthTestEnabled()
```

enableDepthTest
```
public boolean enableDepthTest()
```
Returns:

the previous state.

disableDepthTest
```
public boolean disableDepthTest()
```
Returns:

the previous state.

setDepthTestEnabled

public boolean setDepthTestEnabled(boolean pEnabled)

Returns:: the previous state.

generateBuffer
```
public int generateBuffer()
```

generateArrayBuffer

public int generateArrayBuffer(int pSize,
                               int pUsage)

bindArrayBuffer

public void bindArrayBuffer(int pHardwareBufferID)

deleteArrayBuffer

public void deleteArrayBuffer(int pHardwareBufferID)

generateIndexBuffer

public int generateIndexBuffer(int pSize,
                               int pUsage)

bindIndexBuffer

public void bindIndexBuffer(int pHardwareBufferID)

deleteIndexBuffer

public void deleteIndexBuffer(int pHardwareBufferID)

generateFramebuffer
```
public int generateFramebuffer()
```

bindFramebuffer

public void bindFramebuffer(int pFramebufferID)

getFramebufferStatus
```
public int getFramebufferStatus()
```

checkFramebufferStatus

public void checkFramebufferStatus()
                            throws GLFrameBufferException,
                                   GLException

Throws:: GLFrameBufferException; GLException

getActiveFramebuffer
```
public int getActiveFramebuffer()
```

deleteFramebuffer

public void deleteFramebuffer(int pHardwareFramebufferID)

useProgram

public void useProgram(int pShaderProgramID)

deleteProgram

public void deleteProgram(int pShaderProgramID)

generateTexture
```
public int generateTexture()
```

isTexture

public boolean isTexture(int pHardwareTextureID)

getActiveTexture
```
public int getActiveTexture()
```
Returns:

GLES20.GL_TEXTURE0 to GLES20.GL_TEXTURE31

activeTexture
```
public void activeTexture(int pGLActiveTexture)
```
Parameters:

pGLActiveTexture - from GLES20.GL_TEXTURE0 to GLES20.GL_TEXTURE31.

bindTexture
```
public void bindTexture(int pHardwareTextureID)
```
Parameters:

GLES20 -

pHardwareTextureID -

See Also:

GLState#forceBindTexture(GLES20, int)}

deleteTexture

public void deleteTexture(int pHardwareTextureID)

blendFunction

public void blendFunction(int pSourceBlendMode,
                          int pDestinationBlendMode)

lineWidth

public void lineWidth(float pLineWidth)

pushModelViewGLMatrix
```
public void pushModelViewGLMatrix()
```

popModelViewGLMatrix
```
public void popModelViewGLMatrix()
```

loadModelViewGLMatrixIdentity

public void loadModelViewGLMatrixIdentity()

translateModelViewGLMatrixf

public void translateModelViewGLMatrixf(float pX,
                                        float pY,
                                        float pZ)

rotateModelViewGLMatrixf

public void rotateModelViewGLMatrixf(float pAngle,
                                     float pX,
                                     float pY,
                                     float pZ)

scaleModelViewGLMatrixf

public void scaleModelViewGLMatrixf(float pScaleX,
                                    float pScaleY,
                                    int pScaleZ)

skewModelViewGLMatrixf

public void skewModelViewGLMatrixf(float pSkewX,
                                   float pSkewY)

orthoModelViewGLMatrixf

public void orthoModelViewGLMatrixf(float pLeft,
                                    float pRight,
                                    float pBottom,
                                    float pTop,
                                    float pZNear,
                                    float pZFar)

pushProjectionGLMatrix
```
public void pushProjectionGLMatrix()
```

popProjectionGLMatrix
```
public void popProjectionGLMatrix()
```

loadProjectionGLMatrixIdentity

public void loadProjectionGLMatrixIdentity()

translateProjectionGLMatrixf

public void translateProjectionGLMatrixf(float pX,
                                         float pY,
                                         float pZ)

rotateProjectionGLMatrixf

public void rotateProjectionGLMatrixf(float pAngle,
                                      float pX,
                                      float pY,
                                      float pZ)

scaleProjectionGLMatrixf

public void scaleProjectionGLMatrixf(float pScaleX,
                                     float pScaleY,
                                     float pScaleZ)

skewProjectionGLMatrixf

public void skewProjectionGLMatrixf(float pSkewX,
                                    float pSkewY)

orthoProjectionGLMatrixf

public void orthoProjectionGLMatrixf(float pLeft,
                                     float pRight,
                                     float pBottom,
                                     float pTop,
                                     float pZNear,
                                     float pZFar)

getModelViewGLMatrix
```
public float[] getModelViewGLMatrix()
```

getProjectionGLMatrix

public float[] getProjectionGLMatrix()

getModelViewProjectionGLMatrix

public float[] getModelViewProjectionGLMatrix()

resetModelViewGLMatrixStack

public void resetModelViewGLMatrixStack()

resetProjectionGLMatrixStack

public void resetProjectionGLMatrixStack()

resetGLMatrixStacks
```
public void resetGLMatrixStacks()
```

glTexImage2D

public void glTexImage2D(int pTarget,
                         int pLevel,
                         android.graphics.Bitmap pBitmap,
                         int pBorder,
                         PixelFormat pPixelFormat)

Note: does not pre-multiply the alpha channel!
Except that difference, same as: GLUtils.texSubImage2D(int, int, int, int, Bitmap, int, int)

See topic: 'PNG loading that doesn't premultiply alpha?'

Parameters:: pBorder -

glTexSubImage2D

public void glTexSubImage2D(int pTarget,
                            int pLevel,
                            int pX,
                            int pY,
                            android.graphics.Bitmap pBitmap,
                            PixelFormat pPixelFormat)

flush
```
public void flush()
```
Tells the OpenGL driver to send all pending commands to the GPU immediately.

See Also:

GLState#finish()}, {@link RenderTexture#end(GLState, boolean, boolean)}.

finish
```
public void finish()
```
Tells the OpenGL driver to send all pending commands to the GPU immediately, and then blocks until the effects of those commands have been completed on the GPU. Since this is a costly method it should be only called when really needed.

See Also:

GLState#flush()}, {@link RenderTexture#end(GLState, boolean, boolean)}.

getInteger

public int getInteger(int pAttribute)

getError
```
public int getError()
```

checkError

public void checkError()
                throws GLException

Throws:: GLException

clearError
```
public void clearError()
```

Class GLState

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

GL_UNPACK_ALIGNMENT_DEFAULT

Constructor Detail

GLState

Method Detail

getVersion

getRenderer

getExtensions

getMaximumVertexAttributeCount

getMaximumVertexShaderUniformVectorCount

getMaximumFragmentShaderUniformVectorCount

getMaximumTextureUnits

getMaximumTextureSize

reset

isScissorTestEnabled

enableScissorTest

disableScissorTest

setScissorTestEnabled

isBlendEnabled

enableBlend

disableBlend

setBlendEnabled

isCullingEnabled

enableCulling

disableCulling

setCullingEnabled

isDitherEnabled

enableDither

disableDither

setDitherEnabled

isDepthTestEnabled

enableDepthTest

disableDepthTest

setDepthTestEnabled

generateBuffer