Ogre assumes that there are separate vertex and fragment programs to deal with but GLSL ES has one program object that represents the active vertex and fragment shader objects during a rendering state. More...

#include <OgreGLSLESLinkProgramManager.h>

Inheritance diagram for Ogre::GLSLESLinkProgramManager:

Public Member Functions
	GLSLESLinkProgramManager ()

	~GLSLESLinkProgramManager ()

GLSLESLinkProgram *	getActiveLinkProgram ()
	Get the program object that links the two active shader objects together if a program object was not already created and linked a new one is created and linked. More...

void	setActiveFragmentShader (GLSLESShader *fragmentShader)
	Set the active fragment shader for the next rendering state. More...

void	setActiveVertexShader (GLSLESShader *vertexShader)
	Set the active vertex shader for the next rendering state. More...

Public Member Functions inherited from Ogre::GLSLESProgramManagerCommon
	GLSLESProgramManagerCommon ()

	~GLSLESProgramManagerCommon ()

void	extractUniformsFromGLSL (const String &src, GpuNamedConstants &constantDefs, const String &filename)
	Populate a list of uniforms based on GLSL source and store them in GpuNamedConstants. More...

void	extractUniformsFromProgram (GLuint programObject, const GpuConstantDefinitionMap vertexConstantDefs, const GpuConstantDefinitionMap fragmentConstantDefs, GLUniformReferenceList &uniformList, GLUniformBufferList &uniformBufferList)
	Populate a list of uniforms based on an OpenGL program object. More...

void	optimiseShaderSource (GLSLESShader *gpuProgram)

Public Member Functions inherited from Ogre::Singleton< GLSLESLinkProgramManager >
	Singleton ()

	~Singleton ()

Static Public Member Functions
static GLSLESLinkProgramManager &	getSingleton ()

static GLSLESLinkProgramManager *	getSingletonPtr ()

Static Public Member Functions inherited from Ogre::Singleton< GLSLESLinkProgramManager >
static GLSLESLinkProgramManager &	getSingleton ()

static GLSLESLinkProgramManager *	getSingletonPtr ()

Detailed Description

Ogre assumes that there are separate vertex and fragment programs to deal with but GLSL ES has one program object that represents the active vertex and fragment shader objects during a rendering state.

GLSL Vertex and fragment shader objects are compiled separately and then attached to a program object and then the program object is linked. Since Ogre can only handle one vertex program and one fragment program being active in a pass, the GLSL ES Link Program Manager does the same. The GLSL ES Link program manager acts as a state machine and activates a program object based on the active vertex and fragment program. Previously created program objects are stored along with a unique key in a hash_map for quick retrieval the next time the program object is required.

Constructor & Destructor Documentation

◆ GLSLESLinkProgramManager()

Ogre::GLSLESLinkProgramManager::GLSLESLinkProgramManager ( )

◆ ~GLSLESLinkProgramManager()

Ogre::GLSLESLinkProgramManager::~GLSLESLinkProgramManager ( )

Member Function Documentation

◆ getActiveLinkProgram()

GLSLESLinkProgram* Ogre::GLSLESLinkProgramManager::getActiveLinkProgram ( )

Get the program object that links the two active shader objects together if a program object was not already created and linked a new one is created and linked.

◆ getSingleton()

static GLSLESLinkProgramManager& Ogre::GLSLESLinkProgramManager::getSingleton ( )

static

◆ getSingletonPtr()

static GLSLESLinkProgramManager* Ogre::GLSLESLinkProgramManager::getSingletonPtr ( )

static

◆ setActiveFragmentShader()

void Ogre::GLSLESLinkProgramManager::setActiveFragmentShader ( GLSLESShader * fragmentShader )

Set the active fragment shader for the next rendering state.

The active program object will be cleared. Normally called from the GLSLESShader::bindProgram and unbindProgram methods

◆ setActiveVertexShader()

void Ogre::GLSLESLinkProgramManager::setActiveVertexShader ( GLSLESShader * vertexShader )

Set the active vertex shader for the next rendering state.