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Object-Oriented Graphics Rendering Engine
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Ogre::GpuSharedParameters Class Reference

A group of manually updated parameters that are shared between many parameter sets. More...

#include <OgreGpuProgramParams.h>

+ Inheritance diagram for Ogre::GpuSharedParameters:
+ Collaboration diagram for Ogre::GpuSharedParameters:

Public Member Functions

 GpuSharedParameters (const String &name)
 
virtual ~GpuSharedParameters ()
 
const Any_getRenderSystemData () const
 Internal method that the RenderSystem might use to store optional data. More...
 
void _markDirty ()
 Mark the shared set as being dirty (values modified). More...
 
void _setRenderSystemData (const Any &data) const
 Internal method that the RenderSystem might use to store optional data. More...
 
void addConstantDefinition (const String &name, GpuConstantType constType, size_t arraySize=1)
 Add a new constant definition to this shared set of parameters. More...
 
size_t calculateSize (void) const
 
const GpuConstantDefinitiongetConstantDefinition (const String &name) const
 Get a specific GpuConstantDefinition for a named parameter. More...
 
GpuConstantDefinitionIterator getConstantDefinitionIterator (void) const
 Gets an iterator over the named GpuConstantDefinition instances as defined by the user. More...
 
const GpuNamedConstantsgetConstantDefinitions () const
 Get the full list of GpuConstantDefinition instances. More...
 
const DoubleConstantListgetDoubleConstantList () const
 Get a reference to the list of double constants. More...
 
double * getDoublePointer (size_t pos)
 Get a pointer to the 'nth' item in the double buffer. More...
 
const double * getDoublePointer (size_t pos) const
 Get a pointer to the 'nth' item in the double buffer. More...
 
const FloatConstantListgetFloatConstantList () const
 Get a reference to the list of float constants. More...
 
float * getFloatPointer (size_t pos)
 Get a pointer to the 'nth' item in the float buffer. More...
 
const float * getFloatPointer (size_t pos) const
 Get a pointer to the 'nth' item in the float buffer. More...
 
size_t getFrameLastUpdated () const
 Get the frame in which this shared parameter set was last updated. More...
 
const IntConstantListgetIntConstantList () const
 Get a reference to the list of int constants. More...
 
int * getIntPointer (size_t pos)
 Get a pointer to the 'nth' item in the int buffer. More...
 
const int * getIntPointer (size_t pos) const
 Get a pointer to the 'nth' item in the int buffer. More...
 
const StringgetName ()
 Get the name of this shared parameter set. More...
 
unsigned long getVersion () const
 Get the version number of this shared parameter set, can be used to identify when changes have occurred. More...
 
void operator delete (void *ptr)
 
void operator delete (void *ptr, void *)
 
void operator delete (void *ptr, const char *, int, const char *)
 
void operator delete[] (void *ptr)
 
void operator delete[] (void *ptr, const char *, int, const char *)
 
void * operator new (size_t sz, const char *file, int line, const char *func)
 operator new, with debug line info More...
 
void * operator new (size_t sz)
 
void * operator new (size_t sz, void *ptr)
 placement operator new More...
 
void * operator new[] (size_t sz, const char *file, int line, const char *func)
 array operator new, with debug line info More...
 
void * operator new[] (size_t sz)
 
void removeAllConstantDefinitions ()
 Remove a constant definition from this shared set of parameters. More...
 
void removeConstantDefinition (const String &name)
 Remove a constant definition from this shared set of parameters. More...
 
void setNamedConstant (const String &name, Real val)
 Sets a single value constant floating-point parameter to the program. More...
 
void setNamedConstant (const String &name, int val)
 Sets a single value constant integer parameter to the program. More...
 
void setNamedConstant (const String &name, const Vector4 &vec)
 Sets a Vector4 parameter to the program. More...
 
void setNamedConstant (const String &name, const Vector3 &vec)
 Sets a Vector3 parameter to the program. More...
 
void setNamedConstant (const String &name, const Vector2 &vec)
 Sets a Vector2 parameter to the program. More...
 
void setNamedConstant (const String &name, const Matrix4 &m)
 Sets a Matrix4 parameter to the program. More...
 
void setNamedConstant (const String &name, const Matrix4 *m, size_t numEntries)
 Sets a list of Matrix4 parameters to the program. More...
 
void setNamedConstant (const String &name, const float *val, size_t count)
 
void setNamedConstant (const String &name, const double *val, size_t count)
 
void setNamedConstant (const String &name, const ColourValue &colour)
 Sets a ColourValue parameter to the program. More...
 
void setNamedConstant (const String &name, const int *val, size_t count)
 

Protected Attributes

DoubleConstantList mDoubleConstants
 
FloatConstantList mFloatConstants
 
size_t mFrameLastUpdated
 Not used when copying data, but might be useful to RS using shared buffers. More...
 
IntConstantList mIntConstants
 
String mName
 
GpuNamedConstants mNamedConstants
 
Any mRenderSystemData
 
unsigned long mVersion
 Version number of the definitions in this buffer. More...
 

Detailed Description

A group of manually updated parameters that are shared between many parameter sets.

Remarks
Sometimes you want to set some common parameters across many otherwise different parameter sets, and keep them all in sync together. This class allows you to define a set of parameters that you can share across many parameter sets and have the parameters that match automatically be pulled from the shared set, rather than you having to set them on all the parameter sets individually.
Parameters in a shared set are matched up with instances in a GpuProgramParameters structure by matching names. It is up to you to define the named parameters that a shared set contains, and ensuring the definition matches.
Note
Shared parameter sets can be named, and looked up using the GpuProgramManager.

Definition at line 490 of file OgreGpuProgramParams.h.

Constructor & Destructor Documentation

Ogre::GpuSharedParameters::GpuSharedParameters ( const String name)
virtual Ogre::GpuSharedParameters::~GpuSharedParameters ( )
virtual

Member Function Documentation

const Any& Ogre::GpuSharedParameters::_getRenderSystemData ( ) const
inline

Internal method that the RenderSystem might use to store optional data.

Definition at line 607 of file OgreGpuProgramParams.h.

void Ogre::GpuSharedParameters::_markDirty ( )

Mark the shared set as being dirty (values modified).

Remarks
You do not need to call this yourself, set is marked as dirty whenever setNamedConstant or (non const) getFloatPointer et al are called.
void Ogre::GpuSharedParameters::_setRenderSystemData ( const Any data) const
inline

Internal method that the RenderSystem might use to store optional data.

Definition at line 605 of file OgreGpuProgramParams.h.

void Ogre::GpuSharedParameters::addConstantDefinition ( const String name,
GpuConstantType  constType,
size_t  arraySize = 1 
)

Add a new constant definition to this shared set of parameters.

Remarks
Unlike GpuProgramParameters, where the parameter list is defined by the program being compiled, this shared parameter set is defined by the user. Only parameters which have been predefined here may be later updated.
size_t Ogre::GpuSharedParameters::calculateSize ( void  ) const
const GpuConstantDefinition& Ogre::GpuSharedParameters::getConstantDefinition ( const String name) const

Get a specific GpuConstantDefinition for a named parameter.

GpuConstantDefinitionIterator Ogre::GpuSharedParameters::getConstantDefinitionIterator ( void  ) const

Gets an iterator over the named GpuConstantDefinition instances as defined by the user.

const GpuNamedConstants& Ogre::GpuSharedParameters::getConstantDefinitions ( ) const

Get the full list of GpuConstantDefinition instances.

const DoubleConstantList& Ogre::GpuSharedParameters::getDoubleConstantList ( ) const
inline

Get a reference to the list of double constants.

Definition at line 600 of file OgreGpuProgramParams.h.

double* Ogre::GpuSharedParameters::getDoublePointer ( size_t  pos)
inline

Get a pointer to the 'nth' item in the double buffer.

Definition at line 589 of file OgreGpuProgramParams.h.

const double* Ogre::GpuSharedParameters::getDoublePointer ( size_t  pos) const
inline

Get a pointer to the 'nth' item in the double buffer.

Definition at line 591 of file OgreGpuProgramParams.h.

const FloatConstantList& Ogre::GpuSharedParameters::getFloatConstantList ( ) const
inline

Get a reference to the list of float constants.

Definition at line 598 of file OgreGpuProgramParams.h.

float* Ogre::GpuSharedParameters::getFloatPointer ( size_t  pos)
inline

Get a pointer to the 'nth' item in the float buffer.

Definition at line 585 of file OgreGpuProgramParams.h.

const float* Ogre::GpuSharedParameters::getFloatPointer ( size_t  pos) const
inline

Get a pointer to the 'nth' item in the float buffer.

Definition at line 587 of file OgreGpuProgramParams.h.

size_t Ogre::GpuSharedParameters::getFrameLastUpdated ( ) const
inline

Get the frame in which this shared parameter set was last updated.

Definition at line 546 of file OgreGpuProgramParams.h.

const IntConstantList& Ogre::GpuSharedParameters::getIntConstantList ( ) const
inline

Get a reference to the list of int constants.

Definition at line 602 of file OgreGpuProgramParams.h.

int* Ogre::GpuSharedParameters::getIntPointer ( size_t  pos)
inline

Get a pointer to the 'nth' item in the int buffer.

Definition at line 593 of file OgreGpuProgramParams.h.

const int* Ogre::GpuSharedParameters::getIntPointer ( size_t  pos) const
inline

Get a pointer to the 'nth' item in the int buffer.

Definition at line 595 of file OgreGpuProgramParams.h.

const String& Ogre::GpuSharedParameters::getName ( void  )
inline

Get the name of this shared parameter set.

Definition at line 513 of file OgreGpuProgramParams.h.

unsigned long Ogre::GpuSharedParameters::getVersion ( ) const
inline

Get the version number of this shared parameter set, can be used to identify when changes have occurred.

Definition at line 535 of file OgreGpuProgramParams.h.

template<class Alloc >
void Ogre::AllocatedObject< Alloc >::operator delete ( void *  ptr)
inlineinherited

Definition at line 96 of file OgreMemoryAllocatedObject.h.

template<class Alloc >
void Ogre::AllocatedObject< Alloc >::operator delete ( void *  ptr,
void *   
)
inlineinherited

Definition at line 102 of file OgreMemoryAllocatedObject.h.

template<class Alloc >
void Ogre::AllocatedObject< Alloc >::operator delete ( void *  ptr,
const char *  ,
int  ,
const char *   
)
inlineinherited

Definition at line 108 of file OgreMemoryAllocatedObject.h.

template<class Alloc >
void Ogre::AllocatedObject< Alloc >::operator delete[] ( void *  ptr)
inlineinherited

Definition at line 113 of file OgreMemoryAllocatedObject.h.

template<class Alloc >
void Ogre::AllocatedObject< Alloc >::operator delete[] ( void *  ptr,
const char *  ,
int  ,
const char *   
)
inlineinherited

Definition at line 119 of file OgreMemoryAllocatedObject.h.

template<class Alloc >
void* Ogre::AllocatedObject< Alloc >::operator new ( size_t  sz,
const char *  file,
int  line,
const char *  func 
)
inlineinherited

operator new, with debug line info

Definition at line 68 of file OgreMemoryAllocatedObject.h.

template<class Alloc >
void* Ogre::AllocatedObject< Alloc >::operator new ( size_t  sz)
inlineinherited

Definition at line 73 of file OgreMemoryAllocatedObject.h.

template<class Alloc >
void* Ogre::AllocatedObject< Alloc >::operator new ( size_t  sz,
void *  ptr 
)
inlineinherited

placement operator new

Definition at line 79 of file OgreMemoryAllocatedObject.h.

template<class Alloc >
void* Ogre::AllocatedObject< Alloc >::operator new[] ( size_t  sz,
const char *  file,
int  line,
const char *  func 
)
inlineinherited

array operator new, with debug line info

Definition at line 86 of file OgreMemoryAllocatedObject.h.

template<class Alloc >
void* Ogre::AllocatedObject< Alloc >::operator new[] ( size_t  sz)
inlineinherited

Definition at line 91 of file OgreMemoryAllocatedObject.h.

void Ogre::GpuSharedParameters::removeAllConstantDefinitions ( )

Remove a constant definition from this shared set of parameters.

void Ogre::GpuSharedParameters::removeConstantDefinition ( const String name)

Remove a constant definition from this shared set of parameters.

void Ogre::GpuSharedParameters::setNamedConstant ( const String name,
Real  val 
)

Sets a single value constant floating-point parameter to the program.

Remarks
Different types of GPU programs support different types of constant parameters. For example, it's relatively common to find that vertex programs only support floating point constants, and that fragment programs only support integer (fixed point) parameters. This can vary depending on the program version supported by the graphics card being used. You should consult the documentation for the type of low level program you are using, or alternatively use the methods provided on RenderSystemCapabilities to determine the options.
Another possible limitation is that some systems only allow constants to be set on certain boundaries, e.g. in sets of 4 values for example. Again, see RenderSystemCapabilities for full details.
Note
This named option will only work if you are using a parameters object created from a high-level program (HighLevelGpuProgram).
Parameters
nameThe name of the parameter
valThe value to set
void Ogre::GpuSharedParameters::setNamedConstant ( const String name,
int  val 
)

Sets a single value constant integer parameter to the program.

Remarks
Different types of GPU programs support different types of constant parameters. For example, it's relatively common to find that vertex programs only support floating point constants, and that fragment programs only support integer (fixed point) parameters. This can vary depending on the program version supported by the graphics card being used. You should consult the documentation for the type of low level program you are using, or alternatively use the methods provided on RenderSystemCapabilities to determine the options.
Another possible limitation is that some systems only allow constants to be set on certain boundaries, e.g. in sets of 4 values for example. Again, see RenderSystemCapabilities for full details.
Note
This named option will only work if you are using a parameters object created from a high-level program (HighLevelGpuProgram).
Parameters
nameThe name of the parameter
valThe value to set
void Ogre::GpuSharedParameters::setNamedConstant ( const String name,
const Vector4 vec 
)

Sets a Vector4 parameter to the program.

Parameters
nameThe name of the parameter
vecThe value to set
void Ogre::GpuSharedParameters::setNamedConstant ( const String name,
const Vector3 vec 
)

Sets a Vector3 parameter to the program.

Note
This named option will only work if you are using a parameters object created from a high-level program (HighLevelGpuProgram).
Parameters
nameThe name of the parameter
vecThe value to set
void Ogre::GpuSharedParameters::setNamedConstant ( const String name,
const Vector2 vec 
)

Sets a Vector2 parameter to the program.

Parameters
nameThe name of the parameter
vecThe value to set
void Ogre::GpuSharedParameters::setNamedConstant ( const String name,
const Matrix4 m 
)

Sets a Matrix4 parameter to the program.

Parameters
nameThe name of the parameter
mThe value to set
void Ogre::GpuSharedParameters::setNamedConstant ( const String name,
const Matrix4 m,
size_t  numEntries 
)

Sets a list of Matrix4 parameters to the program.

Parameters
nameThe name of the parameter; this must be the first index of an array, for examples 'matrices[0]' NB since a Matrix4 is 16 floats long, so each entry will take up 4 indexes.
mPointer to an array of matrices to set
numEntriesNumber of Matrix4 entries
void Ogre::GpuSharedParameters::setNamedConstant ( const String name,
const float *  val,
size_t  count 
)

void Ogre::GpuSharedParameters::setNamedConstant ( const String name,
const double *  val,
size_t  count 
)

void Ogre::GpuSharedParameters::setNamedConstant ( const String name,
const ColourValue colour 
)

Sets a ColourValue parameter to the program.

Parameters
nameThe name of the parameter
colourThe value to set
void Ogre::GpuSharedParameters::setNamedConstant ( const String name,
const int *  val,
size_t  count 
)

Member Data Documentation

DoubleConstantList Ogre::GpuSharedParameters::mDoubleConstants
protected

Definition at line 495 of file OgreGpuProgramParams.h.

FloatConstantList Ogre::GpuSharedParameters::mFloatConstants
protected

Definition at line 494 of file OgreGpuProgramParams.h.

size_t Ogre::GpuSharedParameters::mFrameLastUpdated
protected

Not used when copying data, but might be useful to RS using shared buffers.

Definition at line 503 of file OgreGpuProgramParams.h.

IntConstantList Ogre::GpuSharedParameters::mIntConstants
protected

Definition at line 496 of file OgreGpuProgramParams.h.

String Ogre::GpuSharedParameters::mName
protected

Definition at line 497 of file OgreGpuProgramParams.h.

GpuNamedConstants Ogre::GpuSharedParameters::mNamedConstants
protected

Definition at line 493 of file OgreGpuProgramParams.h.

Any Ogre::GpuSharedParameters::mRenderSystemData
mutableprotected

Definition at line 500 of file OgreGpuProgramParams.h.

unsigned long Ogre::GpuSharedParameters::mVersion
protected

Version number of the definitions in this buffer.

Definition at line 506 of file OgreGpuProgramParams.h.


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