Package org.viduus.lwjgl.graphics.shaders.opengl

Class GLShaderProgram

java.lang.Object

org.viduus.lwjgl.graphics.shaders.core.ShaderProgram

org.viduus.lwjgl.graphics.shaders.opengl.GLShaderProgram

public class GLShaderProgram
extends ShaderProgram

Constructor Summary

Constructors

Constructor	Description
GLShaderProgram(java.lang.String shader_name, ShaderManager manager, ShaderVariableInterface var_interface)

Method Summary

Modifier and Type	Method	Description
void	bind()	Binds the shader to the GPU
void	bindAttributes(int byte_offset, ShaderVariable... attributes)	Binds the specified attributes to the GPU
protected void	createProgram()	Creates a new shader program in the GPU
void	delete()	Deletes this shader from the GPU.
void	errorCheck(java.lang.String info)	Does api specific error checking
protected void	link()	Links all of the shader sources together
protected void	loadShaderVariables(SymbolTable variables)	This function is responsible for loading all shader variables and adding them to the passed symbol table.
protected ShaderSource	loadSource(java.lang.String shader_name, ShaderType type)	Loads and creates a new shader source.
void	unbind()	Unbinds the shader from the GPU
void	unbindAttributes(ShaderVariable... attributes)	Unbinds already bound attributes from the GPU.
protected void	validate()	Validates that the shader program linked correctly

Methods inherited from class org.viduus.lwjgl.graphics.shaders.core.ShaderProgram

attribute, attributeExists, attributes, bindAttributes, dataLayout, id, id, name, source, uniform, uniformExists, uniforms

Methods inherited from class java.lang.Object

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

Constructor Detail

GLShaderProgram

public GLShaderProgram(java.lang.String shader_name,
                       ShaderManager manager,
                       ShaderVariableInterface var_interface)
                throws java.io.IOException

Throws:

java.io.IOException

Method Detail

loadSource

protected ShaderSource loadSource(java.lang.String shader_name,
                                  ShaderType type)
                           throws java.io.IOException

Description copied from class: ShaderProgram

Loads and creates a new shader source.

Specified by:

loadSource in class ShaderProgram

Parameters:

shader_name - The name of the shader to load

type - The type of shader to load

Returns:

The new shader

Throws:

java.io.IOException - If shader file could not be read

createProgram

protected void createProgram()

Description copied from class: ShaderProgram

Creates a new shader program in the GPU

Specified by:

createProgram in class ShaderProgram

link

protected void link()

Description copied from class: ShaderProgram

Links all of the shader sources together

Specified by:

link in class ShaderProgram

validate

protected void validate()

Description copied from class: ShaderProgram

Validates that the shader program linked correctly

Specified by:

validate in class ShaderProgram

unbind

public void unbind()

Description copied from class: ShaderProgram

Unbinds the shader from the GPU

Specified by:

unbind in class ShaderProgram

bind

public void bind()

Description copied from class: ShaderProgram

Binds the shader to the GPU

Specified by:

bind in class ShaderProgram

delete

public void delete()

Description copied from class: ShaderProgram

Deletes this shader from the GPU. It will no longer be usable after this point.

Specified by:

delete in class ShaderProgram

errorCheck

public void errorCheck(java.lang.String info)

Description copied from class: ShaderProgram

Does api specific error checking

Specified by:

errorCheck in class ShaderProgram

Parameters:

info - A message that should be reported with the error

bindAttributes

public void bindAttributes(int byte_offset,
                           ShaderVariable... attributes)

Description copied from class: ShaderProgram

Binds the specified attributes to the GPU

Specified by:

bindAttributes in class ShaderProgram

Parameters:

byte_offset - The offset between subsequent data packets in the vbo

attributes - The attributes, in order, that occur in each data packet

unbindAttributes

public void unbindAttributes(ShaderVariable... attributes)

Description copied from class: ShaderProgram

Unbinds already bound attributes from the GPU.

Specified by:

unbindAttributes in class ShaderProgram

Parameters:

attributes - The attributes to unbind from the GPU

loadShaderVariables

protected void loadShaderVariables(SymbolTable variables)

Description copied from class: ShaderProgram

This function is responsible for loading all shader variables and adding them to the passed symbol table. Any variables not added to this symbol table will not be accessible through the getter functions.

Specified by:

loadShaderVariables in class ShaderProgram

Parameters:

variables - The symbol table to build