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# Ogre::GLDefaultHardwareBufferManager Class Reference

Specialisation of HardwareBufferManager to emulate hardware buffers. More...

`#include <OgreGLDefaultHardwareBufferManager.h>`

Inheritance diagram for Ogre::GLDefaultHardwareBufferManager:

[legend]
List of all members.

## Public Types

enum | BufferLicenseType { BLT_MANUAL_RELEASE, BLT_AUTOMATIC_RELEASE }

## Public Methods

| GLDefaultHardwareBufferManager ()
| ~GLDefaultHardwareBufferManager ()
HardwareVertexBufferSharedPtr | createVertexBuffer (size_t vertexSize, size_t numVerts, HardwareBuffer::Usage usage, bool useShadowBuffer=false)
| Creates a vertex buffer.
HardwareIndexBufferSharedPtr | createIndexBuffer (HardwareIndexBuffer::IndexType itype, size_t numIndexes, HardwareBuffer::Usage usage, bool useShadowBuffer=false)
| Create a hardware vertex buffer.
virtual VertexDeclaration * | createVertexDeclaration (void)
| Creates a vertex declaration, may be overridden by certain rendering APIs.
virtual void | destroyVertexDeclaration (VertexDeclaration *decl)
| Destroys a vertex declaration, may be overridden by certain rendering APIs.
virtual VertexBufferBinding * | createVertexBufferBinding (void)
| Creates a new VertexBufferBinding.
virtual void | destroyVertexBufferBinding (VertexBufferBinding *binding)
| Destroys a VertexBufferBinding.
virtual void | registerVertexBufferSourceAndCopy (const HardwareVertexBufferSharedPtr &sourceBuffer, const HardwareVertexBufferSharedPtr &copy)
| Registers a vertex buffer as a copy of another.
virtual HardwareVertexBufferSharedPtr | allocateVertexBufferCopy (const HardwareVertexBufferSharedPtr &sourceBuffer, BufferLicenseType licenseType, HardwareBufferLicensee *licensee, bool copyData=false)
| Allocates a copy of a given vertex buffer.
virtual void | releaseVertexBufferCopy (const HardwareVertexBufferSharedPtr &bufferCopy)
| Manually release a vertex buffer copy for others to subsequently use.
virtual void | _releaseBufferCopies (void)
| Internal method for releasing all temporary buffers which have been allocated using BLT_AUTOMATIC_RELEASE; is called by OGRE.
virtual void | _forceReleaseBufferCopies (const HardwareVertexBufferSharedPtr &sourceBuffer)
| Internal method that forces the release of copies of a given buffer.

## Static Public Methods

HardwareBufferManager & | getSingleton (void)
| Override standard Singleton retrieval.
HardwareBufferManager * | getSingletonPtr (void)
| Override standard Singleton retrieval.

## Protected Types

typedef std::list< VertexDeclaration * > | VertexDeclarationList
typedef std::list< VertexBufferBinding * > | VertexBufferBindingList
typedef std::set< HardwareVertexBuffer * > | VertexBufferList
typedef std::set< HardwareIndexBuffer * > | IndexBufferList
typedef std::vector< HardwareVertexBufferSharedPtr > | FreeTemporaryVertexBufferList
| List of free temporary vertex buffers.
typedef std::map< HardwareVertexBuffer *, FreeTemporaryVertexBufferList * > | FreeTemporaryVertexBufferMap
| Map from original buffer to list of temporary buffers.
typedef std::vector< VertexBufferLicense > | TemporaryVertexBufferLicenseList
| List of currently licensed temp buffers.

## Protected Methods

void | destroyVertexBuffer (HardwareVertexBuffer *buf)
| Destroy a hardware vertex buffer.
void | destroyIndexBuffer (HardwareIndexBuffer *buf)
| Destroy a hardware index buffer.
virtual void | destroyAllDeclarations (void)
virtual void | destroyAllBindings (void)
HardwareVertexBufferSharedPtr | makeBufferCopy (const HardwareVertexBufferSharedPtr &source, HardwareBuffer::Usage usage, bool useShadowBuffer)
| Creates a new buffer as a copy of the source, does not copy data.

## Protected Attributes

VertexDeclarationList | mVertexDeclarations
VertexBufferBindingList | mVertexBufferBindings
VertexBufferList | mVertexBuffers
IndexBufferList | mIndexBuffers
FreeTemporaryVertexBufferMap | mFreeTempVertexBufferMap
| Map of current available temp buffers.
TemporaryVertexBufferLicenseList | mTempVertexBufferLicenses
| List of currently licensed temp buffers.

## Static Protected Attributes

HardwareBufferManager * | ms_Singleton = 0

## Detailed Description

Specialisation of HardwareBufferManager to emulate hardware buffers.

Remarks:
  You might want to instantiate this class if you want to utilise classes like MeshSerializer without having initialised the rendering system (which is required to create a 'real' hardware buffer manager.

Definition at line 96 of file OgreGLDefaultHardwareBufferManager.h.

## Member Typedef Documentation

typedef std::vector<HardwareVertexBufferSharedPtr> Ogre::HardwareBufferManager::FreeTemporaryVertexBufferList`[protected, inherited]`

| List of free temporary vertex buffers. Definition at line 138 of file OgreHardwareBufferManager.h. Referenced by Ogre::HardwareBufferManager::allocateVertexBufferCopy(), and Ogre::HardwareBufferManager::registerVertexBufferSourceAndCopy().

typedef std::map<HardwareVertexBuffer*, FreeTemporaryVertexBufferList*> Ogre::HardwareBufferManager::FreeTemporaryVertexBufferMap`[protected, inherited]`

| Map from original buffer to list of temporary buffers. Definition at line 140 of file OgreHardwareBufferManager.h.

typedef std::set<HardwareIndexBuffer*> Ogre::HardwareBufferManager::IndexBufferList`[protected, inherited]`

| Definition at line 93 of file OgreHardwareBufferManager.h.

typedef std::vector<VertexBufferLicense> Ogre::HardwareBufferManager::TemporaryVertexBufferLicenseList`[protected, inherited]`

| List of currently licensed temp buffers. Definition at line 144 of file OgreHardwareBufferManager.h.

typedef std::list<VertexBufferBinding*> Ogre::HardwareBufferManager::VertexBufferBindingList`[protected, inherited]`

| Definition at line 91 of file OgreHardwareBufferManager.h.

typedef std::set<HardwareVertexBuffer*> Ogre::HardwareBufferManager::VertexBufferList`[protected, inherited]`

| Definition at line 92 of file OgreHardwareBufferManager.h.

typedef std::list<VertexDeclaration*> Ogre::HardwareBufferManager::VertexDeclarationList`[protected, inherited]`

| Definition at line 90 of file OgreHardwareBufferManager.h.

## Member Enumeration Documentation

enum Ogre::HardwareBufferManager::BufferLicenseType`[inherited]`

Enumeration values:

  BLT_MANUAL_RELEASE | Licensee will only release buffer when it says so.
  BLT_AUTOMATIC_RELEASE | Licensee can have license revoked.

Definition at line 111 of file OgreHardwareBufferManager.h.

## Constructor & Destructor Documentation

Ogre::GLDefaultHardwareBufferManager::GLDefaultHardwareBufferManager | ( |  | ) |

| Definition at line 143 of file OgreGLDefaultHardwareBufferManager.cpp.

Ogre::GLDefaultHardwareBufferManager::~GLDefaultHardwareBufferManager | ( |  | ) |

| Definition at line 147 of file OgreGLDefaultHardwareBufferManager.cpp. References Ogre::HardwareBufferManager::destroyAllBindings(), and Ogre::HardwareBufferManager::destroyAllDeclarations().

## Member Function Documentation

void Ogre::HardwareBufferManager::_forceReleaseBufferCopies | ( | const HardwareVertexBufferSharedPtr & | sourceBuffer | ) | `[virtual, inherited]`

Internal method that forces the release of copies of a given buffer.

Remarks:
  This usually means that the buffer which the copies are based on has been changed in some fundamental way, and the owner of the original wishes to make that known so that new copies will reflect the changes.

Definition at line 237 of file OgreHardwareBufferManager.cpp.

References Ogre::HardwareBufferManager::VertexBufferLicense::buffer, Ogre::SharedPtr< HardwareVertexBuffer >::get(), Ogre::HardwareBufferManager::VertexBufferLicense::licensee, Ogre::HardwareBufferLicensee::licenseExpired(), Ogre::HardwareBufferManager::mFreeTempVertexBufferMap, Ogre::HardwareBufferManager::mTempVertexBufferLicenses, and Ogre::HardwareBufferManager::VertexBufferLicense::originalBufferPtr.

void Ogre::HardwareBufferManager::_releaseBufferCopies | ( | void |  | ) | `[virtual, inherited]`

Internal method for releasing all temporary buffers which have been allocated using BLT_AUTOMATIC_RELEASE; is called by OGRE.

Definition at line 210 of file OgreHardwareBufferManager.cpp.

References Ogre::HardwareBufferManager::BLT_AUTOMATIC_RELEASE, Ogre::HardwareBufferManager::VertexBufferLicense::buffer, Ogre::HardwareBufferManager::VertexBufferLicense::licenseType, Ogre::HardwareBufferManager::mFreeTempVertexBufferMap, Ogre::HardwareBufferManager::mTempVertexBufferLicenses, and Ogre::HardwareBufferManager::VertexBufferLicense::originalBufferPtr.

HardwareVertexBufferSharedPtr Ogre::HardwareBufferManager::allocateVertexBufferCopy | ( | const HardwareVertexBufferSharedPtr & | sourceBuffer,
|  | BufferLicenseType | licenseType,
|  | HardwareBufferLicensee * | licensee,
|  | bool | copyData = false
| ) | `[virtual, inherited]`

Allocates a copy of a given vertex buffer.

Remarks:
  This method allocates a temporary copy of an existing vertex buffer. This buffer is subsequently stored and can be made available for other purposes later without incurring the cost of construction / destruction.

Parameters:

  sourceBuffer | The source buffer to use as a copy
  licenseType | The type of license required on this buffer - automatic release causes this class to release licenses every frame so that they can be reallocated anew.
  licensee | Pointer back to the class requesting the copy, which must implement HardwareBufferLicense in order to be notified when the license expires.
  copyData | If true, the current data is copied as well as the structure of the buffer

Definition at line 136 of file OgreHardwareBufferManager.cpp.

References Ogre::HardwareBufferManager::FreeTemporaryVertexBufferList, Ogre::SharedPtr< HardwareVertexBuffer >::get(), Ogre::SharedPtr< HardwareVertexBuffer >::getPointer(), Ogre::HardwareBufferManager::makeBufferCopy(), Ogre::HardwareBufferManager::mFreeTempVertexBufferMap, and Ogre::HardwareBufferManager::mTempVertexBufferLicenses.

Referenced by Ogre::TempBlendedBufferInfo::checkoutTempCopies().

HardwareIndexBufferSharedPtr Ogre::GLDefaultHardwareBufferManager::createIndexBuffer | ( | HardwareIndexBuffer::IndexType | itype,
|  | size_t | numIndexes,
|  | HardwareBuffer::Usage | usage,
|  | bool | useShadowBuffer = false
| ) | `[virtual]`

| Create a hardware vertex buffer. Implements Ogre::HardwareBufferManager. Definition at line 162 of file OgreGLDefaultHardwareBufferManager.cpp. References Ogre::HardwareBufferManager::HardwareIndexBufferSharedPtr.

HardwareVertexBufferSharedPtr Ogre::GLDefaultHardwareBufferManager::createVertexBuffer | ( | size_t | vertexSize,
|  | size_t | numVerts,
|  | HardwareBuffer::Usage | usage,
|  | bool | useShadowBuffer = false
| ) | `[virtual]`

| Creates a vertex buffer. Implements Ogre::HardwareBufferManager. Definition at line 154 of file OgreGLDefaultHardwareBufferManager.cpp. References Ogre::HardwareBufferManager::HardwareVertexBufferSharedPtr.

VertexBufferBinding * Ogre::HardwareBufferManager::createVertexBufferBinding | ( | void |  | ) | `[virtual, inherited]`

| Creates a new VertexBufferBinding. Definition at line 77 of file OgreHardwareBufferManager.cpp. References Ogre::HardwareBufferManager::mVertexBufferBindings.

VertexDeclaration * Ogre::HardwareBufferManager::createVertexDeclaration | ( | void |  | ) | `[virtual, inherited]`

| Creates a vertex declaration, may be overridden by certain rendering APIs. Reimplemented in Ogre::D3D9HardwareBufferManager, and Ogre::GLHardwareBufferManager. Definition at line 63 of file OgreHardwareBufferManager.cpp. References Ogre::HardwareBufferManager::mVertexDeclarations.

void Ogre::HardwareBufferManager::destroyAllBindings | ( | void |  | ) | `[protected, virtual, inherited]`

Definition at line 101 of file OgreHardwareBufferManager.cpp.

References Ogre::HardwareBufferManager::mVertexBufferBindings.

Referenced by Ogre::D3D9HardwareBufferManager::~D3D9HardwareBufferManager(), Ogre::DefaultHardwareBufferManager::~DefaultHardwareBufferManager(), ~GLDefaultHardwareBufferManager(), Ogre::GLHardwareBufferManager::~GLHardwareBufferManager(), and Ogre::HardwareBufferManager::~HardwareBufferManager().

void Ogre::HardwareBufferManager::destroyAllDeclarations | ( | void |  | ) | `[protected, virtual, inherited]`

Reimplemented in Ogre::D3D9HardwareBufferManager.

Definition at line 90 of file OgreHardwareBufferManager.cpp.

References Ogre::HardwareBufferManager::mVertexDeclarations.

Referenced by Ogre::DefaultHardwareBufferManager::~DefaultHardwareBufferManager(), ~GLDefaultHardwareBufferManager(), Ogre::GLHardwareBufferManager::~GLHardwareBufferManager(), and Ogre::HardwareBufferManager::~HardwareBufferManager().

void Ogre::GLDefaultHardwareBufferManager::destroyIndexBuffer | ( | HardwareIndexBuffer * | buf | ) | `[protected, virtual]`

| Destroy a hardware index buffer. Implements Ogre::HardwareBufferManager. Definition at line 138 of file OgreGLDefaultHardwareBufferManager.cpp.

void Ogre::GLDefaultHardwareBufferManager::destroyVertexBuffer | ( | HardwareVertexBuffer * | buf | ) | `[protected, virtual]`

| Destroy a hardware vertex buffer. Implements Ogre::HardwareBufferManager. Definition at line 133 of file OgreGLDefaultHardwareBufferManager.cpp.

void Ogre::HardwareBufferManager::destroyVertexBufferBinding | ( | VertexBufferBinding * | binding | ) | `[virtual, inherited]`

| Destroys a VertexBufferBinding. Definition at line 84 of file OgreHardwareBufferManager.cpp. References Ogre::HardwareBufferManager::mVertexBufferBindings.

void Ogre::HardwareBufferManager::destroyVertexDeclaration | ( | VertexDeclaration * | decl | ) | `[virtual, inherited]`

| Destroys a vertex declaration, may be overridden by certain rendering APIs. Reimplemented in Ogre::D3D9HardwareBufferManager, and Ogre::GLHardwareBufferManager. Definition at line 71 of file OgreHardwareBufferManager.cpp. References Ogre::HardwareBufferManager::mVertexDeclarations.

HardwareBufferManager & Ogre::HardwareBufferManager::getSingleton | ( | void |  | ) | `[static, inherited]`

Override standard Singleton retrieval.

Remarks:
  Why do we do this? Well, it's because the Singleton implementation is in a .h file, which means it gets compiled into anybody who includes it. This is needed for the Singleton template to work, but we actually only want it compiled into the implementation of the class based on the Singleton, not all of them. If we don't change this, we get link errors when trying to use the Singleton-based class from an outside dll.

  This method just delegates to the template version anyway, but the implementation stays in this single compilation unit, preventing link errors.

Reimplemented from Ogre::Singleton< HardwareBufferManager >.

Definition at line 38 of file OgreHardwareBufferManager.cpp.

References Ogre::Singleton< HardwareBufferManager >::ms_Singleton.

HardwareBufferManager * Ogre::HardwareBufferManager::getSingletonPtr | ( | void |  | ) | `[static, inherited]`

Override standard Singleton retrieval.

Remarks:
  Why do we do this? Well, it's because the Singleton implementation is in a .h file, which means it gets compiled into anybody who includes it. This is needed for the Singleton template to work, but we actually only want it compiled into the implementation of the class based on the Singleton, not all of them. If we don't change this, we get link errors when trying to use the Singleton-based class from an outside dll.

  This method just delegates to the template version anyway, but the implementation stays in this single compilation unit, preventing link errors.

Reimplemented from Ogre::Singleton< HardwareBufferManager >.

Definition at line 34 of file OgreHardwareBufferManager.cpp.

References Ogre::Singleton< HardwareBufferManager >::ms_Singleton.

HardwareVertexBufferSharedPtr Ogre::HardwareBufferManager::makeBufferCopy | ( | const HardwareVertexBufferSharedPtr & | source,
|  | HardwareBuffer::Usage | usage,
|  | bool | useShadowBuffer
| ) | `[protected, inherited]`

| Creates a new buffer as a copy of the source, does not copy data. Definition at line 278 of file OgreHardwareBufferManager.cpp. References Ogre::HardwareBufferManager::createVertexBuffer(). Referenced by Ogre::HardwareBufferManager::allocateVertexBufferCopy().

void Ogre::HardwareBufferManager::registerVertexBufferSourceAndCopy | ( | const HardwareVertexBufferSharedPtr & | sourceBuffer,
|  | const HardwareVertexBufferSharedPtr & | copy
| ) | `[virtual, inherited]`

Registers a vertex buffer as a copy of another.

Remarks:
  This is useful for registering an existing buffer as a temporary buffer which can be allocated just like a copy.

Definition at line 111 of file OgreHardwareBufferManager.cpp.

References Ogre::HardwareBufferManager::FreeTemporaryVertexBufferList, Ogre::SharedPtr< HardwareVertexBuffer >::getPointer(), and Ogre::HardwareBufferManager::mFreeTempVertexBufferMap.

void Ogre::HardwareBufferManager::releaseVertexBufferCopy | ( | const HardwareVertexBufferSharedPtr & | bufferCopy | ) | `[virtual, inherited]`

Manually release a vertex buffer copy for others to subsequently use.

Remarks:
  Only required if the original call to allocateVertexBufferCopy included a licenseType of BLT_MANUAL_RELEASE.

Parameters:

  bufferCopy | The buffer copy. The caller is expected to delete or at least no longer use this reference, since another user may well begin to modify the contents of the buffer.

Definition at line 186 of file OgreHardwareBufferManager.cpp.

References Ogre::HardwareBufferManager::VertexBufferLicense::buffer, Ogre::SharedPtr< HardwareVertexBuffer >::getPointer(), Ogre::HardwareBufferManager::mFreeTempVertexBufferMap, Ogre::HardwareBufferManager::mTempVertexBufferLicenses, and Ogre::HardwareBufferManager::VertexBufferLicense::originalBufferPtr.

## Member Data Documentation

FreeTemporaryVertexBufferMap Ogre::HardwareBufferManager::mFreeTempVertexBufferMap`[protected, inherited]`

Map of current available temp buffers.

Definition at line 142 of file OgreHardwareBufferManager.h.

Referenced by Ogre::HardwareBufferManager::_forceReleaseBufferCopies(), Ogre::HardwareBufferManager::_releaseBufferCopies(), Ogre::HardwareBufferManager::allocateVertexBufferCopy(), Ogre::HardwareBufferManager::registerVertexBufferSourceAndCopy(), Ogre::HardwareBufferManager::releaseVertexBufferCopy(), and Ogre::HardwareBufferManager::~HardwareBufferManager().

IndexBufferList Ogre::HardwareBufferManager::mIndexBuffers`[protected, inherited]`

| Definition at line 98 of file OgreHardwareBufferManager.h. Referenced by Ogre::DefaultHardwareBufferManager::createIndexBuffer(), and Ogre::DefaultHardwareBufferManager::destroyIndexBuffer().

HardwareBufferManager * Ogre::Singleton< HardwareBufferManager >::ms_Singleton = 0`[static, protected, inherited]`

| Definition at line 33 of file OgreHardwareBufferManager.cpp. Referenced by Ogre::HardwareBufferManager::getSingleton(), and Ogre::HardwareBufferManager::getSingletonPtr().

TemporaryVertexBufferLicenseList Ogre::HardwareBufferManager::mTempVertexBufferLicenses`[protected, inherited]`

| List of currently licensed temp buffers. Definition at line 146 of file OgreHardwareBufferManager.h. Referenced by Ogre::HardwareBufferManager::_forceReleaseBufferCopies(), Ogre::HardwareBufferManager::_releaseBufferCopies(), Ogre::HardwareBufferManager::allocateVertexBufferCopy(), and Ogre::HardwareBufferManager::releaseVertexBufferCopy().

VertexBufferBindingList Ogre::HardwareBufferManager::mVertexBufferBindings`[protected, inherited]`

| Definition at line 96 of file OgreHardwareBufferManager.h. Referenced by Ogre::HardwareBufferManager::createVertexBufferBinding(), Ogre::HardwareBufferManager::destroyAllBindings(), and Ogre::HardwareBufferManager::destroyVertexBufferBinding().

VertexBufferList Ogre::HardwareBufferManager::mVertexBuffers`[protected, inherited]`

| Definition at line 97 of file OgreHardwareBufferManager.h. Referenced by Ogre::DefaultHardwareBufferManager::createVertexBuffer(), and Ogre::DefaultHardwareBufferManager::destroyVertexBuffer().

VertexDeclarationList Ogre::HardwareBufferManager::mVertexDeclarations`[protected, inherited]`

Definition at line 95 of file OgreHardwareBufferManager.h.

Referenced by Ogre::HardwareBufferManager::createVertexDeclaration(), Ogre::GLHardwareBufferManager::createVertexDeclaration(), Ogre::D3D9HardwareBufferManager::createVertexDeclaration(), Ogre::HardwareBufferManager::destroyAllDeclarations(), Ogre::D3D9HardwareBufferManager::destroyAllDeclarations(), Ogre::HardwareBufferManager::destroyVertexDeclaration(), Ogre::GLHardwareBufferManager::destroyVertexDeclaration(), and Ogre::D3D9HardwareBufferManager::destroyVertexDeclaration().

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

- OgreGLDefaultHardwareBufferManager.h
- OgreGLDefaultHardwareBufferManager.cpp

Copyright © 2002-2003 by The OGRE Team
Last modified Sun Nov 28 19:49:32 2004