org.achtern.AchternEngine.lwjgl.rendering.state

Class LWJGLRenderEngineState

java.lang.Object

org.achtern.AchternEngine.lwjgl.rendering.state.LWJGLRenderEngineState

All Implemented Interfaces:

RenderEngineState

public class LWJGLRenderEngineState
extends Object
implements RenderEngineState

API to talk to the OpenGL statemachine provided by LWJGL Bindings

See Also:

RenderEngineState

Field Summary

Fields

Modifier and Type	Field and Description
protected BlendFunction[]	blendFunction Stores the 2-component blend function which is currently active.
protected FrameBuffer	boundFbo Stores the bound framebuffer object.
protected Mesh	boundMesh Stores the bound Mesh
protected Shader	boundShader Stores the bound Shader
protected Texture	boundTexture Stores the bound Texture
protected Color	clearColor Stores the color to clear the screen.
protected boolean[]	colorMask Stores the active color mask (RGBA)
protected Face	cullFace Stores which face is getting culled.
protected DepthFunction	depthFunction Stores which DepthFunction is currently active.
protected boolean	depthWrite Stores whether or not the engine writes into the depth buffer.
protected Map<Feature,Boolean>	enabled Stores which features are enabled or disabled.
protected FrontFaceMethod	frontFace Stores how faces are drawn.
static org.slf4j.Logger	LOGGER
protected FillMode	polygonMode Store how polygons are getting filled.
protected boolean	throwUnchanged Indicates whether or not to throw exceptions, when a state changed is invoked, but the state is already set on the graphics card program.
protected String	version Stores the version string of the OpenGL Version on the system.

Constructor Summary

Constructors

Constructor and Description
LWJGLRenderEngineState() Constructs a new LWJGLRenderEngine state.
LWJGLRenderEngineState(boolean throwUnchanged)

Method Summary

Modifier and Type	Method and Description
void	clear(boolean color, boolean depth, boolean stencil)
void	cullFace(Face face)
void	disable(Feature feature)
void	enable(Feature feature)
void	enableDepthWrite(boolean enable)
BlendFunction[]	getBlendFunction()
FrameBuffer	getBoundFbo()
Mesh	getBoundMesh()
Shader	getBoundShader()
Texture	getBoundTexture()
Color	getClearColor()
Face	getCullFace()
DepthFunction	getDepthFunction()
FrontFaceMethod	getFrontFace()
FillMode	getPolygonMode()
String	getVersion() Returns the OpenGL Version.
boolean[]	isColorWrite()
boolean	isDepthWrite()
boolean	isEnabled(Feature feature)
void	setBlendFunction(BlendFunction sfactor, BlendFunction dfactor)
void	setBound(FrameBuffer fbo)
void	setBound(Mesh mesh)
void	setBound(Shader shader)
void	setBound(Texture texture)
void	setClearColor(Color color)
void	setColorWrite(boolean r, boolean g, boolean b, boolean a)
void	setDepthFunction(DepthFunction function)
void	setFrontFace(FrontFaceMethod face)
void	setPolygonMode(FillMode mode)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

LOGGER

public static final org.slf4j.Logger LOGGER

version

protected String version

Stores the version string of the OpenGL Version on the system. NOT the version of LWJGL

throwUnchanged

protected final boolean throwUnchanged

Indicates whether or not to throw exceptions, when a state changed is invoked, but the state is already set on the graphics card program. Useful to find useless calls, but not advised to have turned on in production!

enabled

protected Map<Feature,Boolean> enabled

Stores which features are enabled or disabled.

See Also:

Feature

depthFunction

protected DepthFunction depthFunction

Stores which DepthFunction is currently active.

cullFace

protected Face cullFace

Stores which face is getting culled.

clearColor

protected Color clearColor

Stores the color to clear the screen.

frontFace

protected FrontFaceMethod frontFace

Stores how faces are drawn.

depthWrite

protected boolean depthWrite

Stores whether or not the engine writes into the depth buffer.

blendFunction

protected BlendFunction[] blendFunction

Stores the 2-component blend function which is currently active.

polygonMode

protected FillMode polygonMode

Store how polygons are getting filled.

colorMask

protected boolean[] colorMask

Stores the active color mask (RGBA)

boundFbo

protected FrameBuffer boundFbo

Stores the bound framebuffer object.

boundTexture

protected Texture boundTexture

Stores the bound Texture

boundMesh

protected Mesh boundMesh

Stores the bound Mesh

boundShader

protected Shader boundShader

Stores the bound Shader

Constructor Detail

LWJGLRenderEngineState

public LWJGLRenderEngineState()

Constructs a new LWJGLRenderEngine state. Throws exceptions on unchanged state calls!

See Also:

throwUnchanged

LWJGLRenderEngineState

public LWJGLRenderEngineState(boolean throwUnchanged)

Method Detail

getVersion

public String getVersion()

Returns the OpenGL Version. Calls GL11.glGetString(int). (Caches the value after on first call!)

Specified by:

getVersion in interface RenderEngineState

Returns:

OpenGL Version

clear

public void clear(boolean color,
                  boolean depth,
                  boolean stencil)

Specified by:

clear in interface RenderEngineState

enable

public void enable(Feature feature)

Specified by:

enable in interface RenderEngineState

disable

public void disable(Feature feature)

Specified by:

disable in interface RenderEngineState

isEnabled

public boolean isEnabled(Feature feature)

Specified by:

isEnabled in interface RenderEngineState

cullFace

public void cullFace(Face face)

Specified by:

cullFace in interface RenderEngineState

getCullFace

public Face getCullFace()

Specified by:

getCullFace in interface RenderEngineState

setFrontFace

public void setFrontFace(FrontFaceMethod face)

Specified by:

setFrontFace in interface RenderEngineState

getFrontFace

public FrontFaceMethod getFrontFace()

Specified by:

getFrontFace in interface RenderEngineState

setClearColor

public void setClearColor(Color color)

Specified by:

setClearColor in interface RenderEngineState

getClearColor

public Color getClearColor()

Specified by:

getClearColor in interface RenderEngineState

setDepthFunction

public void setDepthFunction(DepthFunction function)

Specified by:

setDepthFunction in interface RenderEngineState

getDepthFunction

public DepthFunction getDepthFunction()

Specified by:

getDepthFunction in interface RenderEngineState

setBlendFunction

public void setBlendFunction(BlendFunction sfactor,
                             BlendFunction dfactor)

Specified by:

setBlendFunction in interface RenderEngineState

getBlendFunction

public BlendFunction[] getBlendFunction()

Specified by:

getBlendFunction in interface RenderEngineState

enableDepthWrite

public void enableDepthWrite(boolean enable)

Specified by:

enableDepthWrite in interface RenderEngineState

isDepthWrite

public boolean isDepthWrite()

Specified by:

isDepthWrite in interface RenderEngineState

setPolygonMode

public void setPolygonMode(FillMode mode)

Specified by:

setPolygonMode in interface RenderEngineState

getPolygonMode

public FillMode getPolygonMode()

Specified by:

getPolygonMode in interface RenderEngineState

setColorWrite

public void setColorWrite(boolean r,
                          boolean g,
                          boolean b,
                          boolean a)

Specified by:

setColorWrite in interface RenderEngineState

isColorWrite

public boolean[] isColorWrite()

Specified by:

isColorWrite in interface RenderEngineState

setBound

public void setBound(FrameBuffer fbo)

Specified by:

setBound in interface RenderEngineState

getBoundFbo

public FrameBuffer getBoundFbo()

Specified by:

getBoundFbo in interface RenderEngineState

setBound

public void setBound(Texture texture)

Specified by:

setBound in interface RenderEngineState

getBoundTexture

public Texture getBoundTexture()

Specified by:

getBoundTexture in interface RenderEngineState

setBound

public void setBound(Mesh mesh)

Specified by:

setBound in interface RenderEngineState

getBoundMesh

public Mesh getBoundMesh()

Specified by:

getBoundMesh in interface RenderEngineState

setBound

public void setBound(Shader shader)

Specified by:

setBound in interface RenderEngineState

getBoundShader

public Shader getBoundShader()

Specified by:

getBoundShader in interface RenderEngineState