OGRE  2.0
Object-Oriented Graphics Rendering Engine
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Ogre::GLSLESLinkProgramManager Class Reference

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, GLUniformBufferList &sharedList)
 Populate a list of uniforms based on a program object. More...
 
GLSLESLinkProgramgetActiveLinkProgram (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 GLSLESLinkProgramManagergetSingleton (void)
 
static GLSLESLinkProgramManagergetSingletonPtr (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...
 
void parseIndividualConstant (const String &src, GpuNamedConstants &defs, String::size_type currPos, const String &filename, GpuSharedParametersPtr sharedParams)
 

Protected Attributes

GLSLESGpuProgrammActiveFragmentGpuProgram
 
GLSLESGpuProgrammActiveVertexGpuProgram
 Active objects defining the active rendering gpu state. More...
 
struct glslopt_ctx * mGLSLOptimiserContext
 

Static Protected Attributes

static GLSLESLinkProgramManagermsSingleton
 

Private Types

typedef LinkProgramMap::iterator LinkProgramIterator
 
typedef map< uint64,
GLSLESLinkProgram * >::type 
LinkProgramMap
 
typedef map< String, GLenum >::type StringToEnumMap
 

Private Attributes

GLSLESLinkProgrammActiveLinkProgram
 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.

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
srcReference to the source code
constantDefsThe defs to populate (will not be cleared before adding, clear it yourself before calling this if that's what you want).
filenameThe file name this came from, for logging errors.
void Ogre::GLSLESProgramManagerCommon::extractUniforms ( GLuint  programObject,
const GpuConstantDefinitionMap vertexConstantDefs,
const GpuConstantDefinitionMap fragmentConstantDefs,
GLUniformReferenceList list,
GLUniformBufferList sharedList 
)
inherited

Populate a list of uniforms based on a program object.

Parameters
programObjectHandle to the program object to query
vertexConstantDefsDefinition 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.
fragmentConstantDefsDefinition 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.
listThe 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::GLSLESProgramManagerCommon::parseIndividualConstant ( const String src,
GpuNamedConstants defs,
String::size_type  currPos,
const String filename,
GpuSharedParametersPtr  sharedParams 
)
protectedinherited
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

Member Data Documentation

GLSLESGpuProgram* Ogre::GLSLESProgramManagerCommon::mActiveFragmentGpuProgram
protectedinherited

Definition at line 59 of file OgreGLSLESProgramManagerCommon.h.

GLSLESLinkProgram* Ogre::GLSLESLinkProgramManager::mActiveLinkProgram
private

Active objects defining the active rendering gpu state.

Definition at line 64 of file OgreGLSLESLinkProgramManager.h.

GLSLESGpuProgram* Ogre::GLSLESProgramManagerCommon::mActiveVertexGpuProgram
protectedinherited

Active objects defining the active rendering gpu state.

Definition at line 58 of file OgreGLSLESProgramManagerCommon.h.

struct glslopt_ctx* Ogre::GLSLESProgramManagerCommon::mGLSLOptimiserContext
protectedinherited

Definition at line 64 of file OgreGLSLESProgramManagerCommon.h.

LinkProgramMap Ogre::GLSLESLinkProgramManager::mLinkPrograms
private

Container holding previously created program objects.

Definition at line 61 of file OgreGLSLESLinkProgramManager.h.

GLSLESLinkProgramManager * Ogre::Singleton< GLSLESLinkProgramManager >::msSingleton
staticprotectedinherited

Definition at line 75 of file OgreSingleton.h.

StringToEnumMap Ogre::GLSLESLinkProgramManager::mTypeEnumMap
private

Definition at line 67 of file OgreGLSLESLinkProgramManager.h.


The documentation for this class was generated from the following file: