Ogre::GLHardwareBufferManager Class Reference

Implementation of HardwareBufferManager for OpenGL. More...

#include <OgreGLHardwareBufferManager.h>

Inheritance diagram for Ogre::GLHardwareBufferManager:

Public Member Functions
	GLHardwareBufferManager ()
	~GLHardwareBufferManager ()
void *	allocateScratch (uint32 size)
	Allocator method to allow us to use a pool of memory as a scratch area for hardware buffers. More...
HardwareIndexBufferSharedPtr	createIndexBuffer (HardwareIndexBuffer::IndexType itype, size_t numIndexes, HardwareBuffer::Usage usage, bool useShadowBuffer=false)
	Create a hardware vertex buffer. More...
RenderToVertexBufferSharedPtr	createRenderToVertexBuffer ()
	Create a render to vertex buffer. More...
HardwareVertexBufferSharedPtr	createVertexBuffer (size_t vertexSize, size_t numVerts, HardwareBuffer::Usage usage, bool useShadowBuffer=false)
	Creates a vertex buffer. More...
void	deallocateScratch (void *ptr)
size_t	getGLMapBufferThreshold () const
	Threshold after which glMapBuffer is used and not glBufferSubData. More...
GLStateCacheManager *	getStateCacheManager ()
void	setGLMapBufferThreshold (const size_t value)
Public Member Functions inherited from Ogre::HardwareBufferManager
	HardwareBufferManager ()
	~HardwareBufferManager ()
Public Member Functions inherited from Ogre::HardwareBufferManagerBase
	HardwareBufferManagerBase ()
virtual	~HardwareBufferManagerBase ()
void	_forceReleaseBufferCopies (const HardwareVertexBufferSharedPtr &sourceBuffer)
	Internal method that forces the release of copies of a given buffer. More...
void	_forceReleaseBufferCopies (HardwareVertexBuffer *sourceBuffer)
	Internal method that forces the release of copies of a given buffer. More...
void	_freeUnusedBufferCopies (void)
	Free all unused vertex buffer copies. More...
void	_notifyCounterBufferDestroyed (HardwareCounterBuffer *buf)
	Notification that at hardware counter buffer has been destroyed. More...
void	_notifyIndexBufferDestroyed (HardwareIndexBuffer *buf)
	Notification that a hardware index buffer has been destroyed. More...
void	_notifyUniformBufferDestroyed (HardwareUniformBuffer *buf)
	Notification that at hardware uniform buffer has been destroyed. More...
void	_notifyVertexBufferDestroyed (HardwareVertexBuffer *buf)
	Notification that a hardware vertex buffer has been destroyed. More...
void	_releaseBufferCopies (bool forceFreeUnused=false)
	Internal method for releasing all temporary buffers which have been allocated using BLT_AUTOMATIC_RELEASE; is called by OGRE. More...
HardwareVertexBufferSharedPtr	allocateVertexBufferCopy (const HardwareVertexBufferSharedPtr &sourceBuffer, BufferLicenseType licenseType, HardwareBufferLicensee *licensee, bool copyData=false)
	Allocates a copy of a given vertex buffer. More...
virtual HardwareCounterBufferSharedPtr	createCounterBuffer (size_t sizeBytes, HardwareBuffer::Usage usage=HardwareBuffer::HBU_DYNAMIC_WRITE_ONLY_DISCARDABLE, bool useShadowBuffer=false, const String &name="")
	Create counter buffer. More...
virtual HardwareUniformBufferSharedPtr	createUniformBuffer (size_t sizeBytes, HardwareBuffer::Usage usage=HardwareBuffer::HBU_DYNAMIC_WRITE_ONLY_DISCARDABLE, bool useShadowBuffer=false, const String &name="")
	Create uniform buffer. More...
VertexBufferBinding *	createVertexBufferBinding (void)
	Creates a new VertexBufferBinding. More...
VertexDeclaration *	createVertexDeclaration (void)
	Creates a new vertex declaration. More...
void	destroyVertexBufferBinding (VertexBufferBinding *binding)
	Destroys a VertexBufferBinding. More...
void	destroyVertexDeclaration (VertexDeclaration *decl)
	Destroys a vertex declaration. More...
virtual void	registerVertexBufferSourceAndCopy (const HardwareVertexBufferSharedPtr &sourceBuffer, const HardwareVertexBufferSharedPtr &copy)
	Registers a vertex buffer as a copy of another. More...
void	releaseVertexBufferCopy (const HardwareVertexBufferSharedPtr &bufferCopy)
	Manually release a vertex buffer copy for others to subsequently use. More...
void	touchVertexBufferCopy (const HardwareVertexBufferSharedPtr &bufferCopy)
	Tell engine that the vertex buffer copy intent to reuse. More...
Public Member Functions inherited from Ogre::Singleton< HardwareBufferManager >
	Singleton (void)
	~Singleton (void)

Static Public Member Functions
static GLenum	getGLType (unsigned int type)
	Utility function to get the correct GL type based on VET's. More...
static GLenum	getGLUsage (unsigned int usage)
	Utility function to get the correct GL usage based on HBU's. More...
Static Public Member Functions inherited from Ogre::HardwareBufferManager
static HardwareBufferManager &	getSingleton (void)
	Get the singleton instance. More...
static HardwareBufferManager *	getSingletonPtr (void)
	Get the singleton instance. More...
Static Public Member Functions inherited from Ogre::Singleton< HardwareBufferManager >
static HardwareBufferManager &	getSingleton (void)
	Get the singleton instance. More...
static HardwareBufferManager *	getSingletonPtr (void)
	Get the singleton instance. More...

Additional Inherited Members
Public Types inherited from Ogre::HardwareBufferManagerBase
enum	BufferLicenseType { BLT_MANUAL_RELEASE, BLT_AUTOMATIC_RELEASE }

Detailed Description

Implementation of HardwareBufferManager for OpenGL.

Constructor & Destructor Documentation

GLHardwareBufferManager()

Ogre::GLHardwareBufferManager::GLHardwareBufferManager

(

)

~GLHardwareBufferManager()

Ogre::GLHardwareBufferManager::~GLHardwareBufferManager

(

)

Member Function Documentation

createVertexBuffer()

HardwareVertexBufferSharedPtr Ogre::GLHardwareBufferManager::createVertexBuffer ( size_t  vertexSize, size_t  numVerts, HardwareBuffer::Usage  usage, bool  useShadowBuffer = false  )

virtual

Creates a vertex buffer.

Implements Ogre::HardwareBufferManagerBase.

createIndexBuffer()

HardwareIndexBufferSharedPtr Ogre::GLHardwareBufferManager::createIndexBuffer ( HardwareIndexBuffer::IndexType  itype, size_t  numIndexes, HardwareBuffer::Usage  usage, bool  useShadowBuffer = false  )

virtual

Create a hardware vertex buffer.

Implements Ogre::HardwareBufferManagerBase.

createRenderToVertexBuffer()

RenderToVertexBufferSharedPtr Ogre::GLHardwareBufferManager::createRenderToVertexBuffer ( )

virtual

Create a render to vertex buffer.

Reimplemented from Ogre::HardwareBufferManagerBase.

getGLUsage()

static GLenum Ogre::GLHardwareBufferManager::getGLUsage ( unsigned int  usage )

static

Utility function to get the correct GL usage based on HBU's.

getGLType()

static GLenum Ogre::GLHardwareBufferManager::getGLType ( unsigned int  type )

static

Utility function to get the correct GL type based on VET's.

getStateCacheManager()

GLStateCacheManager* Ogre::GLHardwareBufferManager::getStateCacheManager

(

)

allocateScratch()

void* Ogre::GLHardwareBufferManager::allocateScratch

(

uint32

size

)

Allocator method to allow us to use a pool of memory as a scratch area for hardware buffers.

This is because glMapBuffer is incredibly inefficient, seemingly no matter what options we give it. So for the period of lock/unlock, we will instead allocate a section of a local memory pool, and use glBufferSubDataARB / glGetBufferSubDataARB instead.

deallocateScratch()

void Ogre::GLHardwareBufferManager::deallocateScratch

(

void *

ptr

)

See also

allocateScratch

getGLMapBufferThreshold()

size_t Ogre::GLHardwareBufferManager::getGLMapBufferThreshold

(

)

const

Threshold after which glMapBuffer is used and not glBufferSubData.

setGLMapBufferThreshold()

void Ogre::GLHardwareBufferManager::setGLMapBufferThreshold

(

const size_t

value

)

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

• OgreGLHardwareBufferManager.h