Ogre::GpuProgramUsage Class Reference

This class makes the usage of a vertex and fragment programs (low-level or high-level), with a given set of parameters, explicit. More...

#include <OgreGpuProgramUsage.h>

List of all members.

Public Member Functions

 GpuProgramUsage (GpuProgramType gptype)
 Default constructor.
 GpuProgramUsage (const GpuProgramUsage &rhs)
 Copy constructor.
GpuProgramType getType (void) const
 Gets the type of program we're trying to link to.
void setProgramName (const String &name, bool resetParams=true)
 Sets the name of the program to use.
void setProgram (GpuProgramPtr &prog)
 Sets the program to use.
const GpuProgramPtrgetProgram () const
 Gets the program being used.
const StringgetProgramName (void) const
 Gets the program being used.
void setParameters (GpuProgramParametersSharedPtr params)
 Sets the program parameters that should be used; because parameters can be shared between multiple usages for efficiency, this method is here for you to register externally created parameter objects.
GpuProgramParametersSharedPtr getParameters (void)
 Gets the parameters being used here.
void _load (void)
 Load this usage (and ensure program is loaded).
void _unload (void)
 Unload this usage.

Protected Attributes

GpuProgramType mType
GpuProgramPtr mProgram
GpuProgramParametersSharedPtr mParameters
 program parameters


Detailed Description

This class makes the usage of a vertex and fragment programs (low-level or high-level), with a given set of parameters, explicit.

Remarks:
Using a vertex or fragment program can get fairly complex; besides the fairly rudimentary process of binding a program to the GPU for rendering, managing usage has few complications, such as: This class packages up those details so you don't have to worry about them. For example, this class lets you define a high-level program and set up the parameters for it, without having loaded the program (which you normally could not do). When the program is loaded and compiled, this class will then validate the parameters you supplied earlier and turn them into runtime parameters.
Just incase it wasn't clear from the above, this class provides linkage to both GpuProgram and HighLevelGpuProgram, despite its name.

Definition at line 66 of file OgreGpuProgramUsage.h.


Constructor & Destructor Documentation

Ogre::GpuProgramUsage::GpuProgramUsage ( GpuProgramType  gptype  ) 

Default constructor.

Parameters:
gptype The type of program to link to

Ogre::GpuProgramUsage::GpuProgramUsage ( const GpuProgramUsage rhs  ) 

Copy constructor.


Member Function Documentation

GpuProgramType Ogre::GpuProgramUsage::getType ( void   )  const

Gets the type of program we're trying to link to.

Definition at line 87 of file OgreGpuProgramUsage.h.

void Ogre::GpuProgramUsage::setProgramName ( const String name,
bool  resetParams = true 
)

Sets the name of the program to use.

Parameters:
name The name of the program to use
resetParams If true, this will create a fresh set of parameters from the new program being linked, so if you had previously set parameters you will have to set them again. If you set this to false, you must be absolutely sure that the parameters match perfectly, and in the case of named parameters refers to the indexes underlying them, not just the names.

void Ogre::GpuProgramUsage::setProgram ( GpuProgramPtr prog  ) 

Sets the program to use.

Remarks:
Note that this will create a fresh set of parameters from the new program being linked, so if you had previously set parameters you will have to set them again.

const GpuProgramPtr& Ogre::GpuProgramUsage::getProgram (  )  const

Gets the program being used.

Definition at line 108 of file OgreGpuProgramUsage.h.

const String& Ogre::GpuProgramUsage::getProgramName ( void   )  const

Gets the program being used.

Definition at line 110 of file OgreGpuProgramUsage.h.

void Ogre::GpuProgramUsage::setParameters ( GpuProgramParametersSharedPtr  params  ) 

Sets the program parameters that should be used; because parameters can be shared between multiple usages for efficiency, this method is here for you to register externally created parameter objects.

Otherwise, the parameters will be created for you when a program is linked.

GpuProgramParametersSharedPtr Ogre::GpuProgramUsage::getParameters ( void   ) 

Gets the parameters being used here.

void Ogre::GpuProgramUsage::_load ( void   ) 

Load this usage (and ensure program is loaded).

void Ogre::GpuProgramUsage::_unload ( void   ) 

Unload this usage.


Member Data Documentation

GpuProgramType Ogre::GpuProgramUsage::mType [protected]

Definition at line 69 of file OgreGpuProgramUsage.h.

GpuProgramPtr Ogre::GpuProgramUsage::mProgram [protected]

Definition at line 71 of file OgreGpuProgramUsage.h.

GpuProgramParametersSharedPtr Ogre::GpuProgramUsage::mParameters [protected]

program parameters

Definition at line 74 of file OgreGpuProgramUsage.h.


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

Copyright © 2000-2005 by The OGRE Team
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Last modified Mon Jun 16 12:49:53 2008