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:

Collaboration diagram for Ogre::GLSLESLinkProgramManager:

Public Member Functions
	GLSLESLinkProgramManager (void)

	~GLSLESLinkProgramManager (void)

void	extractConstantDefs (const String &src, GpuNamedConstants &constantDefs, const String &filename)
	Populate a list of uniforms based on GLSL ES source. More...

void	extractUniforms (GLuint programObject, const GpuConstantDefinitionMap vertexConstantDefs, const GpuConstantDefinitionMap fragmentConstantDefs, GLUniformReferenceList &list)
	Populate a list of uniforms based on a program object. More...

GLSLESLinkProgram *	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. More...

void	optimiseShaderSource (GLSLESGpuProgram *gpuProgram)

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

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

Static Public Member Functions
static GLSLESLinkProgramManager &	getSingleton (void)

static GLSLESLinkProgramManager *	getSingletonPtr (void)

Protected Member Functions
void	completeDefInfo (GLenum gltype, GpuConstantDefinition &defToUpdate)
	Use type to complete other information. More...

bool	completeParamSource (const String &paramName, const GpuConstantDefinitionMap vertexConstantDefs, const GpuConstantDefinitionMap fragmentConstantDefs, GLUniformReference &refToUpdate)
	Find where the data for a specific uniform should come from, populate. More...

Protected Attributes
GLSLESGpuProgram *	mActiveFragmentGpuProgram

GLSLESGpuProgram *	mActiveVertexGpuProgram
	Active objects defining the active rendering gpu state. More...

struct glslopt_ctx *	mGLSLOptimiserContext

Static Protected Attributes
static GLSLESLinkProgramManager *	msSingleton

Private Types
typedef LinkProgramMap::iterator	LinkProgramIterator

typedef map< uint64, GLSLESLinkProgram * >::type	LinkProgramMap

typedef map< String, GLenum >::type	StringToEnumMap

Private Attributes
GLSLESLinkProgram *	mActiveLinkProgram
	Active objects defining the active rendering gpu state. More...

LinkProgramMap	mLinkPrograms
	Container holding previously created program objects. More...

StringToEnumMap	mTypeEnumMap

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.

Definition at line 52 of file OgreGLSLESLinkProgramManager.h.

Member Typedef Documentation

typedef LinkProgramMap::iterator Ogre::GLSLESLinkProgramManager::LinkProgramIterator

private

Definition at line 58 of file OgreGLSLESLinkProgramManager.h.

typedef map<uint64, GLSLESLinkProgram*>::type Ogre::GLSLESLinkProgramManager::LinkProgramMap

private

Definition at line 57 of file OgreGLSLESLinkProgramManager.h.

typedef map<String, GLenum>::type Ogre::GLSLESLinkProgramManager::StringToEnumMap

private

Definition at line 66 of file OgreGLSLESLinkProgramManager.h.

Constructor & Destructor Documentation

Ogre::GLSLESLinkProgramManager::GLSLESLinkProgramManager ( void )

Ogre::GLSLESLinkProgramManager::~GLSLESLinkProgramManager ( void )

Member Function Documentation

void Ogre::GLSLESProgramManagerCommon::completeDefInfo	(	GLenum	gltype,
		GpuConstantDefinition &	defToUpdate
	)

protectedinherited

Use type to complete other information.

bool Ogre::GLSLESProgramManagerCommon::completeParamSource	(	const String &	paramName,
		const GpuConstantDefinitionMap *	vertexConstantDefs,
		const GpuConstantDefinitionMap *	fragmentConstantDefs,
		GLUniformReference &	refToUpdate
	)

protectedinherited

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

void Ogre::GLSLESProgramManagerCommon::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
list	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::GLSLESProgramManagerCommon::extractUniforms	(	GLuint	programObject,
		const GpuConstantDefinitionMap *	vertexConstantDefs,
		const GpuConstantDefinitionMap *	fragmentConstantDefs,
		GLUniformReferenceList &	list
	)

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).

GLSLESLinkProgram* Ogre::GLSLESLinkProgramManager::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 GLSLESLinkProgramManager& Ogre::GLSLESLinkProgramManager::getSingleton ( void )

static

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

static

void Ogre::GLSLESProgramManagerCommon::optimiseShaderSource ( GLSLESGpuProgram * gpuProgram )

inherited

void Ogre::GLSLESLinkProgramManager::setActiveFragmentShader ( GLSLESGpuProgram * fragmentGpuProgram )

Set the active fragment shader for the next rendering state.

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

void Ogre::GLSLESLinkProgramManager::setActiveVertexShader ( GLSLESGpuProgram * vertexGpuProgram )

Set the active vertex shader for the next rendering state.

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