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

#include <OgreGLSLLinkProgramManager.h>

Inheritance diagram for Ogre::GLSLLinkProgramManager:

[legend]

List of all members.

Public Member Functions
	GLSLLinkProgramManager (void)
	~GLSLLinkProgramManager (void)
void	extractConstantDefs (const String &src, GpuNamedConstants &constantDefs, const String &filename)
	Populate a list of uniforms based on GLSL ES source.
void	extractUniforms (GLuint programObject, const GpuConstantDefinitionMap vertexConstantDefs, const GpuConstantDefinitionMap geometryConstantDefs, const GpuConstantDefinitionMap fragmentConstantDefs, const GpuConstantDefinitionMap hullConstantDefs, const GpuConstantDefinitionMap domainConstantDefs, const GpuConstantDefinitionMap computeConstantDefs, GLUniformReferenceList &list, GLUniformBufferList &sharedList)
	Populate a list of uniforms based on a program object.
GLSLLinkProgram *	getActiveLinkProgram (void)
	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.
void	setActiveComputeShader (GLSLGpuProgram *computeGpuProgram)
	Set the active compute shader for the next rendering state.
void	setActiveDomainShader (GLSLGpuProgram *domainGpuProgram)
	Set the active domain(evaluation) shader for the next rendering state.
void	setActiveFragmentShader (GLSLGpuProgram *fragmentGpuProgram)
	Set the active fragment shader for the next rendering state.
void	setActiveGeometryShader (GLSLGpuProgram *geometryGpuProgram)
	Set the active geometry shader for the next rendering state.
void	setActiveHullShader (GLSLGpuProgram *hullGpuProgram)
	Set the active hull(control) shader for the next rendering state.
void	setActiveVertexShader (GLSLGpuProgram *vertexGpuProgram)
	Set the active vertex shader for the next rendering state.
Static Public Member Functions
static GLSLLinkProgramManager &	getSingleton (void)
static GLSLLinkProgramManager *	getSingletonPtr (void)
Protected Member Functions
void	completeDefInfo (GLenum gltype, GpuConstantDefinition &defToUpdate)
	Use type to complete other information.
bool	completeParamSource (const String &paramName, const GpuConstantDefinitionMap vertexConstantDefs, const GpuConstantDefinitionMap geometryConstantDefs, const GpuConstantDefinitionMap fragmentConstantDefs, const GpuConstantDefinitionMap hullConstantDefs, const GpuConstantDefinitionMap domainConstantDefs, const GpuConstantDefinitionMap computeConstantDefs, GLUniformReference &refToUpdate)
	Find where the data for a specific uniform should come from, populate.
void	parseIndividualConstant (const String &src, GpuNamedConstants &defs, String::size_type currPos, const String &filename, GpuSharedParametersPtr sharedParams)
Protected Attributes
GLSLGpuProgram *	mActiveComputeGpuProgram
GLSLGpuProgram *	mActiveDomainGpuProgram
GLSLGpuProgram *	mActiveFragmentGpuProgram
GLSLGpuProgram *	mActiveGeometryGpuProgram
GLSLGpuProgram *	mActiveHullGpuProgram
GLSLGpuProgram *	mActiveVertexGpuProgram
	Active objects defining the active rendering gpu state.
Static Protected Attributes
static GLSLLinkProgramManager *	msSingleton
Private Types
typedef LinkProgramMap::iterator	LinkProgramIterator
typedef map< uint32, GLSLLinkProgram * >::type	LinkProgramMap
typedef map< String, GLenum >::type	StringToEnumMap
Private Attributes
GLSLLinkProgram *	mActiveLinkProgram
	active objects defining the active rendering gpu state
LinkProgramMap	mLinkPrograms
	container holding previously created program objects
StringToEnumMap	mTypeEnumMap

Detailed Description

Ogre assumes that there are separate vertex and fragment programs to deal with but GLSL 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 Link Program Manager does the same. The GLSL 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.

Definition at line 53 of file Plus/src/GLSL/include/OgreGLSLLinkProgramManager.h.

Member Typedef Documentation

typedef LinkProgramMap::iterator Ogre::GLSLLinkProgramManager::LinkProgramIterator [private]

Definition at line 59 of file Plus/src/GLSL/include/OgreGLSLLinkProgramManager.h.

typedef map<uint32, GLSLLinkProgram*>::type Ogre::GLSLLinkProgramManager::LinkProgramMap [private]

Definition at line 58 of file Plus/src/GLSL/include/OgreGLSLLinkProgramManager.h.

typedef map<String, GLenum>::type Ogre::GLSLLinkProgramManager::StringToEnumMap [private]

Reimplemented from Ogre::GLSLProgramManagerCommon.

Definition at line 67 of file Plus/src/GLSL/include/OgreGLSLLinkProgramManager.h.

Constructor & Destructor Documentation

Ogre::GLSLLinkProgramManager::GLSLLinkProgramManager ( void )

Ogre::GLSLLinkProgramManager::~GLSLLinkProgramManager ( void )

Member Function Documentation

void Ogre::GLSLProgramManagerCommon::completeDefInfo	(	GLenum	gltype,
		GpuConstantDefinition &	defToUpdate
	)		`[protected, inherited]`

Use type to complete other information.

bool Ogre::GLSLProgramManagerCommon::completeParamSource	(	const String &	paramName,
		const GpuConstantDefinitionMap *	vertexConstantDefs,
		const GpuConstantDefinitionMap *	geometryConstantDefs,
		const GpuConstantDefinitionMap *	fragmentConstantDefs,
		const GpuConstantDefinitionMap *	hullConstantDefs,
		const GpuConstantDefinitionMap *	domainConstantDefs,
		const GpuConstantDefinitionMap *	computeConstantDefs,
		GLUniformReference &	refToUpdate
	)		`[protected, inherited]`

Find where the data for a specific uniform should come from, populate.

void Ogre::GLSLProgramManagerCommon::extractConstantDefs	(	const String &	src,
		GpuNamedConstants &	constantDefs,
		const String &	filename
	)		`[inherited]`

Populate a list of uniforms based on GLSL ES source.

Parameters:

src	Reference to the source code
constantDefs	The defs to populate (will not be cleared before adding, clear it yourself before calling this if that's what you want).
filename	The file name this came from, for logging errors.

void Ogre::GLSLProgramManagerCommon::extractUniforms	(	GLuint	programObject,
		const GpuConstantDefinitionMap *	vertexConstantDefs,
		const GpuConstantDefinitionMap *	geometryConstantDefs,
		const GpuConstantDefinitionMap *	fragmentConstantDefs,
		const GpuConstantDefinitionMap *	hullConstantDefs,
		const GpuConstantDefinitionMap *	domainConstantDefs,
		const GpuConstantDefinitionMap *	computeConstantDefs,
		GLUniformReferenceList &	list,
		GLUniformBufferList &	sharedList
	)		`[inherited]`

Populate a list of uniforms based on a program object.

Parameters:

programObject	Handle to the program object to query
vertexConstantDefs	Definition of the constants extracted from the vertex program, used to match up physical buffer indexes with program uniforms. May be null if there is no vertex program.
fragmentConstantDefs	Definition of the constants extracted from the fragment program, used to match up physical buffer indexes with program uniforms. May be null if there is no fragment program.
list	The list to populate (will not be cleared before adding, clear it yourself before calling this if that's what you want).

GLSLLinkProgram* Ogre::GLSLLinkProgramManager::getActiveLinkProgram ( void )

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.

static GLSLLinkProgramManager& Ogre::GLSLLinkProgramManager::getSingleton ( void ) [static]

Reimplemented from Ogre::Singleton< GLSLLinkProgramManager >.

static GLSLLinkProgramManager* Ogre::GLSLLinkProgramManager::getSingletonPtr ( void ) [static]

Reimplemented from Ogre::Singleton< GLSLLinkProgramManager >.

void Ogre::GLSLProgramManagerCommon::parseIndividualConstant	(	const String &	src,
		GpuNamedConstants &	defs,
		String::size_type	currPos,
		const String &	filename,
		GpuSharedParametersPtr	sharedParams
	)		`[protected, inherited]`

void Ogre::GLSLLinkProgramManager::setActiveComputeShader ( GLSLGpuProgram * computeGpuProgram )

Set the active compute shader for the next rendering state.