# Ogre::CompositorInstance Class Reference

An instance of a Compositor object for one Viewport. More...

`#include <OgreCompositorInstance.h>`

Inheritance diagram for Ogre::CompositorInstance:

[legend]

List of all members.

## Public Types

typedef std::map < int, MaterialPtr > | QuadMaterialMap
typedef std::pair < int, RenderSystemOperation * > | RenderSystemOpPair
typedef std::vector < RenderSystemOpPair > | RenderSystemOpPairs
typedef std::vector < TargetOperation > | CompiledState

## Public Member Functions

| CompositorInstance (Compositor *filter, CompositionTechnique *technique, CompositorChain *chain)
virtual | ~CompositorInstance ()
void | setEnabled (bool value)
| Set enabled flag.
bool | getEnabled ()
| Get enabled flag.
const String & | getTextureInstanceName (const String &name, size_t mrtIndex)
| Get the instance name for a local texture.
RenderTarget * | getRenderTarget (const String &name)
| Get the render target for a given render texture name.
virtual void | _compileTargetOperations (CompiledState &compiledState)
| Recursively collect target states (except for final Pass).
virtual void | _compileOutputOperation (TargetOperation &finalState)
| Compile the final (output) operation.
Compositor * | getCompositor ()
| Get Compositor of which this is an instance.
CompositionTechnique * | getTechnique ()
| Get CompositionTechnique used by this instance.
CompositorChain * | getChain ()
| Get Chain that this instance is part of.
void | addListener (Listener *l)
| Add a listener.
void | removeListener (Listener *l)
| Remove a listener.
void | _fireNotifyMaterialSetup (uint32 pass_id, MaterialPtr &mat)
| Notify listeners of a material compilation.
void | _fireNotifyMaterialRender (uint32 pass_id, MaterialPtr &mat)
| Notify listeners of a material render.
void * | operator new (size_t sz, const char *file, int line, const char *func)
| operator new, with debug line info
void * | operator new (size_t sz)
void * | operator new (size_t sz, void *ptr)
| placement operator new
void * | operator new[] (size_t sz, const char *file, int line, const char *func)
| array operator new, with debug line info
void * | operator new[] (size_t sz)
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 *)

## Private Types

typedef std::map < String, TexturePtr > | LocalTextureMap
| Map from name->local texture.
typedef std::map < String, MultiRenderTarget * > | LocalMRTMap
| Store a list of MRTs we've created.
typedef std::vector < Listener * > | Listeners
| Vector of listeners.

## Private Member Functions

virtual void | collectPasses (TargetOperation &finalState, CompositionTargetPass *target)
| Collect rendering passes.
MaterialPtr | createLocalMaterial (const String &srcName)
| Create a local dummy material with one technique but no passes.
void | createResources ()
| Create local rendertextures and other resources.
void | freeResources ()
| Destroy local rendertextures and other resources.
RenderTarget * | getTargetForTex (const String &name)
| Get RenderTarget for a named local texture.
const String & | getSourceForTex (const String &name, size_t mrtIndex=0)
| Get source texture name for a named local texture.
void | queueRenderSystemOp (TargetOperation &finalState, RenderSystemOperation *op)
| Queue a render system operation.
String | getMRTTexLocalName (const String &baseName, size_t attachment)
| Util method for assigning a local texture name to a MRT attachment.
void | deriveTextureRenderTargetOptions (const String &texname, bool *hwGammaWrite, uint *fsaa)
| Search for options like AA and hardware gamma which we may want to inherit from the main render target to which we're attached.

## Private Attributes

Compositor * | mCompositor
| Compositor of which this is an instance.
CompositionTechnique * | mTechnique
| Composition technique used by this instance.
CompositorChain * | mChain
| Composition chain of which this instance is part.
bool | mEnabled
| Is this instance enabled?
LocalTextureMap | mLocalTextures
LocalMRTMap | mLocalMRTs
Listeners | mListeners
CompositorInstance * | mPreviousInstance
| Previous instance (set by chain).

## Friends

class | CompositorChain

## Classes

class | Listener
| Provides an interface to "listen in" to to render system operations executed by this CompositorInstance. More...
class | RenderSystemOperation
| Specific render system operation. More...
class | TargetOperation
| Operation setup for a RenderTarget (collected). More...

## Detailed Description

An instance of a Compositor object for one Viewport.

It is part of the CompositorChain for a Viewport.

Definition at line 42 of file OgreCompositorInstance.h.

## Member Typedef Documentation

typedef std::map<int, MaterialPtr> Ogre::CompositorInstance::QuadMaterialMap

Definition at line 87 of file OgreCompositorInstance.h.

typedef std::pair<int, RenderSystemOperation*> Ogre::CompositorInstance::RenderSystemOpPair

Definition at line 88 of file OgreCompositorInstance.h.

typedef std::vector<RenderSystemOpPair> Ogre::CompositorInstance::RenderSystemOpPairs

Definition at line 89 of file OgreCompositorInstance.h.

typedef std::vector<TargetOperation> Ogre::CompositorInstance::CompiledState

Definition at line 145 of file OgreCompositorInstance.h.

typedef std::map<String,TexturePtr> Ogre::CompositorInstance::LocalTextureMap`[private]`

Map from name->local texture.

Definition at line 228 of file OgreCompositorInstance.h.

typedef std::map<String,MultiRenderTarget*> Ogre::CompositorInstance::LocalMRTMap`[private]`

Store a list of MRTs we've created.

Definition at line 231 of file OgreCompositorInstance.h.

typedef std::vector<Listener*> Ogre::CompositorInstance::Listeners`[private]`

Vector of listeners.

Definition at line 235 of file OgreCompositorInstance.h.

## Constructor & Destructor Documentation

Ogre::CompositorInstance::CompositorInstance | ( | Compositor * | filter,
|  | CompositionTechnique * | technique,
|  | CompositorChain * | chain |
| ) |  |  |

virtual Ogre::CompositorInstance::~CompositorInstance | ( |  | ) | `[virtual]`

## Member Function Documentation

void Ogre::CompositorInstance::setEnabled | ( | bool | value | ) |

Set enabled flag.

The compositor instance will only render if it is enabled, otherwise it is pass-through.

bool Ogre::CompositorInstance::getEnabled | ( |  | ) |

Get enabled flag.

const String& Ogre::CompositorInstance::getTextureInstanceName | ( | const String & | name,
|  | size_t | mrtIndex |
| ) |  |  |

Get the instance name for a local texture.

Note:
  It is only valid to call this when local textures have been loaded, which in practice means that the compositor instance is active. Calling it at other times will cause an exception. Note that since textures are cleaned up aggressively, this name is not guaranteed to stay the same if you disable and re-enable the compositor instance.

Parameters:

  | name | The name of the texture in the original compositor definition
  | mrtIndex | If name identifies a MRT, which texture attachment to retrieve

Returns:
  The instance name for the texture, corresponds to a real texture

RenderTarget* Ogre::CompositorInstance::getRenderTarget | ( | const String & | name | ) |

Get the render target for a given render texture name.

Remarks:
  You can use this to add listeners etc, but do not use it to update the targets manually or any other modifications, the compositor instance is in charge of this.

virtual void Ogre::CompositorInstance::_compileTargetOperations | ( | CompiledState & | compiledState | ) | `[virtual]`

Recursively collect target states (except for final Pass).

Parameters:

  | compiledState | This vector will contain a list of TargetOperation objects

virtual void Ogre::CompositorInstance::_compileOutputOperation | ( | TargetOperation & | finalState | ) | `[virtual]`

Compile the final (output) operation.

This is done separately because this is combined with the input in chained filters.

Compositor* Ogre::CompositorInstance::getCompositor | ( |  | ) |

Get Compositor of which this is an instance.

CompositionTechnique* Ogre::CompositorInstance::getTechnique | ( |  | ) |

Get CompositionTechnique used by this instance.

CompositorChain* Ogre::CompositorInstance::getChain | ( |  | ) |

Get Chain that this instance is part of.

void Ogre::CompositorInstance::addListener | ( | Listener * | l | ) |

Add a listener.

Listeners provide an interface to "listen in" to to render system operations executed by this CompositorInstance so that materials can be programmatically set up.

See also:
  CompositorInstance::Listener

void Ogre::CompositorInstance::removeListener | ( | Listener * | l | ) |

Remove a listener.

See also:
  CompositorInstance::Listener

void Ogre::CompositorInstance::_fireNotifyMaterialSetup | ( | uint32 | pass_id,
|  | MaterialPtr & | mat |
| ) |  |  |

Notify listeners of a material compilation.

void Ogre::CompositorInstance::_fireNotifyMaterialRender | ( | uint32 | pass_id,
|  | MaterialPtr & | mat |
| ) |  |  |

Notify listeners of a material render.

virtual void Ogre::CompositorInstance::collectPasses | ( | TargetOperation & | finalState,
|  | CompositionTargetPass * | target |
| ) |  |  | `[private, virtual]`

Collect rendering passes.

Here, passes are converted into render target operations and queued with queueRenderSystemOp.

MaterialPtr Ogre::CompositorInstance::createLocalMaterial | ( | const String & | srcName | ) | `[private]`

Create a local dummy material with one technique but no passes.

The material is detached from the Material Manager to make sure it is destroyed when going out of scope.

void Ogre::CompositorInstance::createResources | ( |  | ) | `[private]`

Create local rendertextures and other resources.

Builds mLocalTextures.

void Ogre::CompositorInstance::freeResources | ( |  | ) | `[private]`

Destroy local rendertextures and other resources.

RenderTarget* Ogre::CompositorInstance::getTargetForTex | ( | const String & | name | ) | `[private]`

Get RenderTarget for a named local texture.

const String& Ogre::CompositorInstance::getSourceForTex | ( | const String & | name,
|  | size_t | mrtIndex = `0` |
| ) |  |  | `[private]`

Get source texture name for a named local texture.

Parameters:

  | name | The local name of the texture as given to it in the compositor
  | mrtIndex | For MRTs, which attached surface to retrieve

void Ogre::CompositorInstance::queueRenderSystemOp | ( | TargetOperation & | finalState,
|  | RenderSystemOperation * | op |
| ) |  |  | `[private]`

Queue a render system operation.

Returns:
  destination pass

String Ogre::CompositorInstance::getMRTTexLocalName | ( | const String & | baseName,
|  | size_t | attachment |
| ) |  |  | `[private]`

Util method for assigning a local texture name to a MRT attachment.

void Ogre::CompositorInstance::deriveTextureRenderTargetOptions | ( | const String & | texname,
|  | bool * | hwGammaWrite,
|  | uint * | fsaa |
| ) |  |  | `[private]`

Search for options like AA and hardware gamma which we may want to inherit from the main render target to which we're attached.

template<class Alloc>

void* Ogre::AllocatedObject< Alloc >::operator new | ( | size_t | sz,
|  | const char * | file,
|  | int | line,
|  | const char * | func |
| ) |  |  | `[inherited]`

operator new, with debug line info

Definition at line 62 of file OgreMemoryAllocatedObject.h.

template<class Alloc>

void* Ogre::AllocatedObject< Alloc >::operator new | ( | size_t | sz | ) | `[inherited]`

Definition at line 67 of file OgreMemoryAllocatedObject.h.

template<class Alloc>

void* Ogre::AllocatedObject< Alloc >::operator new | ( | size_t | sz,
|  | void * | ptr |
| ) |  |  | `[inherited]`

placement operator new

Definition at line 73 of file OgreMemoryAllocatedObject.h.

template<class Alloc>

void* Ogre::AllocatedObject< Alloc >::operator new[] | ( | size_t | sz,
|  | const char * | file,
|  | int | line,
|  | const char * | func |
| ) |  |  | `[inherited]`

array operator new, with debug line info

Definition at line 79 of file OgreMemoryAllocatedObject.h.

template<class Alloc>

void* Ogre::AllocatedObject< Alloc >::operator new[] | ( | size_t | sz | ) | `[inherited]`

Definition at line 84 of file OgreMemoryAllocatedObject.h.

template<class Alloc>

void Ogre::AllocatedObject< Alloc >::operator delete | ( | void * | ptr | ) | `[inherited]`

Definition at line 89 of file OgreMemoryAllocatedObject.h.

template<class Alloc>

void Ogre::AllocatedObject< Alloc >::operator delete | ( | void * | ptr,
|  | void * |  |
| ) |  |  | `[inherited]`

Definition at line 95 of file OgreMemoryAllocatedObject.h.

template<class Alloc>

void Ogre::AllocatedObject< Alloc >::operator delete | ( | void * | ptr,
|  | const char * | ,
|  | int | ,
|  | const char * |  |
| ) |  |  | `[inherited]`

Definition at line 101 of file OgreMemoryAllocatedObject.h.

template<class Alloc>

void Ogre::AllocatedObject< Alloc >::operator delete[] | ( | void * | ptr | ) | `[inherited]`

Definition at line 106 of file OgreMemoryAllocatedObject.h.

template<class Alloc>

void Ogre::AllocatedObject< Alloc >::operator delete[] | ( | void * | ptr,
|  | const char * | ,
|  | int | ,
|  | const char * |  |
| ) |  |  | `[inherited]`

Definition at line 112 of file OgreMemoryAllocatedObject.h.

## Friends And Related Function Documentation

friend class CompositorChain`[friend]`

Definition at line 284 of file OgreCompositorInstance.h.

## Member Data Documentation

Compositor* Ogre::CompositorInstance::mCompositor`[private]`

Compositor of which this is an instance.

Definition at line 220 of file OgreCompositorInstance.h.

CompositionTechnique* Ogre::CompositorInstance::mTechnique`[private]`

Composition technique used by this instance.

Definition at line 222 of file OgreCompositorInstance.h.

CompositorChain* Ogre::CompositorInstance::mChain`[private]`

Composition chain of which this instance is part.

Definition at line 224 of file OgreCompositorInstance.h.

bool Ogre::CompositorInstance::mEnabled`[private]`

Is this instance enabled?

Definition at line 226 of file OgreCompositorInstance.h.

LocalTextureMap Ogre::CompositorInstance::mLocalTextures`[private]`

Definition at line 229 of file OgreCompositorInstance.h.

LocalMRTMap Ogre::CompositorInstance::mLocalMRTs`[private]`

Definition at line 232 of file OgreCompositorInstance.h.

Listeners Ogre::CompositorInstance::mListeners`[private]`

Definition at line 236 of file OgreCompositorInstance.h.

CompositorInstance* Ogre::CompositorInstance::mPreviousInstance`[private]`

Previous instance (set by chain).

Definition at line 239 of file OgreCompositorInstance.h.

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

- OgreCompositorInstance.h

Copyright © 2008 Torus Knot Software Ltd
This work is licensed under a Creative Commons Attribution-ShareAlike 2.5 License.
Last modified Sat Apr 11 14:27:39 2009