A UniformInitalizerBase is a base class for initializing a uniform, the actual GL call to set the uniform value is to be implemented by a derived class in init_uniform(). More...

#include <gl_program.hpp>

Inheritance diagram for fastuidraw::gl::UniformInitalizerBase:

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Public Member Functions
	UniformInitalizerBase (c_string uniform_name)

virtual void	perform_initialization (Program *pr, bool program_bound) const

Public Member Functions inherited from fastuidraw::reference_counted_base< T, Counter >
	reference_counted_base (void)

Protected Member Functions
virtual void	init_uniform (GLuint program, Program::shader_variable_info info, unsigned int array_index, bool program_bound) const =0

Additional Inherited Members
Static Public Member Functions inherited from fastuidraw::reference_counted_base< T, Counter >
static void	add_reference (const reference_counted_base< T, Counter > *p)

static void	remove_reference (const reference_counted_base< T, Counter > *p)

Detailed Description

A UniformInitalizerBase is a base class for initializing a uniform, the actual GL call to set the uniform value is to be implemented by a derived class in init_uniform().

Definition at line 1465 of file gl_program.hpp.

Constructor & Destructor Documentation

◆ UniformInitalizerBase()

fastuidraw::gl::UniformInitalizerBase::UniformInitalizerBase ( c_string uniform_name )

Ctor.

Parameters

uniform_name name of uniform to initialize

Member Function Documentation

◆ init_uniform()

virtual void fastuidraw::gl::UniformInitalizerBase::init_uniform	(	GLuint	program,
		Program::shader_variable_info	info,
		unsigned int	array_index,
		bool	program_bound
	)		const

protectedpure virtual

To be implemented by a derived class to make the GL call to initialize a uniform in a GLSL shader.

Parameters

program	GL program
info	information on uniform (name, type, location, etc)
array_index	index into GLSL uniform if it is an array
program_bound	true if and only if the program named by program is bound (via glUseProgram). If the program is not bound, then one SHOULD not bind the program and instead use the GL API points to set values of the uniform(s) that do not rely on having the program bound. One can also safely assume that those API points are supported in the case it is not bound (in particular the function family ProgramUniform() can be safely used).

Implemented in fastuidraw::gl::SamplerInitializer, fastuidraw::gl::UniformInitializer< c_array< const T > >, and fastuidraw::gl::UniformInitializer< T >.