com.io7m.r2.core.shaders.types

Class R2ShaderParameters

java.lang.Object

com.io7m.r2.core.shaders.types.R2ShaderParameters

public final class R2ShaderParameters
extends Object

Convenient functions for dealing with shader parameters.

Method Summary

Modifier and Type	Method and Description
static void	checkUniformParameterCount(com.io7m.jcanephora.core.JCGLProgramShaderUsableType p, int count) Check that the given program has the expected number of uniform parameters.
static com.io7m.jcanephora.core.JCGLProgramUniformType	getUniformChecked(com.io7m.jcanephora.core.JCGLProgramShaderUsableType p, String name, com.io7m.jcanephora.core.JCGLType type) Retrieve a uniform parameter for the given program, raising an exception if the parameter is not present for any reason.

Methods inherited from class java.lang.Object

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

Method Detail

getUniformChecked

public static com.io7m.jcanephora.core.JCGLProgramUniformType getUniformChecked(com.io7m.jcanephora.core.JCGLProgramShaderUsableType p,
                                                                                String name,
                                                                                com.io7m.jcanephora.core.JCGLType type)
                                                                         throws R2ExceptionShaderParameterNotPresent

Retrieve a uniform parameter for the given program, raising an exception if the parameter is not present for any reason.

Parameters:

p - The program

name - The parameter name

type - The expected type of the parameter

Returns:

The parameter, if it exists

Throws:

R2ExceptionShaderParameterNotPresent - Iff the shader parameter was either undeclared or was optimized out

checkUniformParameterCount

public static void checkUniformParameterCount(com.io7m.jcanephora.core.JCGLProgramShaderUsableType p,
                                              int count)
                                       throws R2ExceptionShaderParameterCountMismatch

Check that the given program has the expected number of uniform parameters.

Parameters:

p - The program

count - The expected number of parameters

Throws:

R2ExceptionShaderParameterCountMismatch - On unexpected parameter counts