Implementation of HardwareBufferManager for OpenGL. More...

#include <OgreGL3PlusHardwareBufferManager.h>

Inheritance diagram for Ogre::v1::GL3PlusHardwareBufferManagerBase:

Public Member Functions
	GL3PlusHardwareBufferManagerBase ()

	~GL3PlusHardwareBufferManagerBase () override

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) override
	Create a hardware vertex buffer. More...

HardwareVertexBufferSharedPtr	createVertexBuffer (size_t vertexSize, size_t numVerts, HardwareBuffer::Usage usage, bool useShadowBuffer=false) override
	Creates a vertex buffer. More...

void	deallocateScratch (void *ptr)

size_t	getGLMapBufferThreshold () const
	Threshold after which glMapBuffer is used and not glBufferSubData. More...

void	setGLMapBufferThreshold (const size_t value)

Public Member Functions inherited from Ogre::v1::HardwareBufferManagerBase
	HardwareBufferManagerBase ()

virtual	~HardwareBufferManagerBase ()

virtual void	_forceReleaseBufferCopies (const HardwareVertexBufferSharedPtr &sourceBuffer)
	Internal method that forces the release of copies of a given buffer. More...

virtual void	_forceReleaseBufferCopies (HardwareVertexBuffer *sourceBuffer)
	Internal method that forces the release of copies of a given buffer. More...

virtual void	_freeUnusedBufferCopies ()
	Free all unused vertex buffer copies. More...

void	_notifyIndexBufferDestroyed (HardwareIndexBuffer *buf)
	Notification that a hardware index buffer has been destroyed. More...

void	_notifyVertexBufferDestroyed (HardwareVertexBuffer *buf)
	Notification that a hardware vertex buffer has been destroyed. More...

virtual 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...

virtual HardwareVertexBufferSharedPtr	allocateVertexBufferCopy (const HardwareVertexBufferSharedPtr &sourceBuffer, BufferLicenseType licenseType, HardwareBufferLicensee *licensee, bool copyData=false)
	Allocates a copy of a given vertex buffer. More...

virtual VertexBufferBinding *	createVertexBufferBinding ()
	Creates a new VertexBufferBinding. More...

virtual VertexDeclaration *	createVertexDeclaration ()
	Creates a new vertex declaration. More...

virtual void	destroyVertexBufferBinding (VertexBufferBinding *binding)
	Destroys a VertexBufferBinding. More...

virtual 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...

virtual void	releaseVertexBufferCopy (const HardwareVertexBufferSharedPtr &bufferCopy)
	Manually release a vertex buffer copy for others to subsequently use. More...

virtual void	touchVertexBufferCopy (const HardwareVertexBufferSharedPtr &bufferCopy)
	Tell engine that the vertex buffer copy intent to reuse. More...

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...

Additional Inherited Members
Public Types inherited from Ogre::v1::HardwareBufferManagerBase
enum	BufferLicenseType { BLT_MANUAL_RELEASE , BLT_AUTOMATIC_RELEASE }

Detailed Description

Implementation of HardwareBufferManager for OpenGL.

Constructor & Destructor Documentation

◆ GL3PlusHardwareBufferManagerBase()

Ogre::v1::GL3PlusHardwareBufferManagerBase::GL3PlusHardwareBufferManagerBase ( )

◆ ~GL3PlusHardwareBufferManagerBase()

Ogre::v1::GL3PlusHardwareBufferManagerBase::~GL3PlusHardwareBufferManagerBase ( )

override

Member Function Documentation

◆ allocateScratch()

void* Ogre::v1::GL3PlusHardwareBufferManagerBase::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.

◆ createIndexBuffer()

HardwareIndexBufferSharedPtr Ogre::v1::GL3PlusHardwareBufferManagerBase::createIndexBuffer	(	HardwareIndexBuffer::IndexType	itype,
		size_t	numIndexes,
		HardwareBuffer::Usage	usage,
		bool	useShadowBuffer = `false`
	)

overridevirtual

Create a hardware vertex buffer.

Implements Ogre::v1::HardwareBufferManagerBase.

◆ createVertexBuffer()

HardwareVertexBufferSharedPtr Ogre::v1::GL3PlusHardwareBufferManagerBase::createVertexBuffer	(	size_t	vertexSize,
		size_t	numVerts,
		HardwareBuffer::Usage	usage,
		bool	useShadowBuffer = `false`
	)

overridevirtual

Creates a vertex buffer.

Implements Ogre::v1::HardwareBufferManagerBase.

◆ deallocateScratch()

void Ogre::v1::GL3PlusHardwareBufferManagerBase::deallocateScratch ( void * ptr )

See also: allocateScratch

◆ getGLMapBufferThreshold()

size_t Ogre::v1::GL3PlusHardwareBufferManagerBase::getGLMapBufferThreshold ( ) const

Threshold after which glMapBuffer is used and not glBufferSubData.

◆ getGLType()

static GLenum Ogre::v1::GL3PlusHardwareBufferManagerBase::getGLType ( unsigned int type )

static

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

Referenced by Ogre::v1::GL3PlusHardwareBufferManager::getGLType().

◆ getGLUsage()

static GLenum Ogre::v1::GL3PlusHardwareBufferManagerBase::getGLUsage ( unsigned int usage )

static

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

Referenced by Ogre::v1::GL3PlusHardwareBufferManager::getGLUsage().

◆ setGLMapBufferThreshold()

void Ogre::v1::GL3PlusHardwareBufferManagerBase::setGLMapBufferThreshold ( const size_t value )

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

OgreGL3PlusHardwareBufferManager.h

Public Member Functions

Static Public Member Functions

Additional Inherited Members