PrimitiveManager Class Reference

Primitive management in the construction tree. More...

#include <sdf.h>

Public Member Functions
	PrimitiveManager ()
	Handle the writing of glsl primitives in an order respecting the dependency.
bool	insertPrimitive (const QString &, const QString &, std::list< QString >=std::list< QString >())
	add a primitive in the shader, return true if the primitive is inserted, false otherwise (if the primitive was already in the list)
void	setDependence (const QString &, std::list< QString > &)
	set the dependency of a given primitive
int	getId ()
	get a primitive name that is not in the primitives set yet
QString	getPRIMITIVE ()
	return a glsl code of all primitives in an order respecting the dependency
QString	getPRIMITIVE (std::list< QString >)
	return a glsl code of all primitives in an order respecting the dependency
QString	printGLSL ()
	Write PRIMITIVE code with identation and newline to help the reading.
qsizetype	Alloc (qsizetype)
	reserve some memory space in the global OpenGl buffer 'FloatBuffer' that is loaded on the GPU when executing the shader
qsizetype	Alloc (const QString &, qsizetype size)
	reserve some memory space in the global OpenGl buffer 'FloatBuffer' that is loaded on the GPU when executing the shader
qsizetype	allocsize (const QString &name) const
	Give the size of a memory block. Return 0 if the block is not allocated, allowing check if(!allocisze("name"))malloc("name", ...);.
void	setFloatData (float *floatData, qsizetype ptr, qsizetype size)
	Write in the 'FloatBuffer'. This is a read only buffer loaded on GPU when executing the shader.
void	setFloatData (const QVector< float > &floatData, qsizetype ptr)
	Write in the 'FloatBuffer'. This is a read only buffer loaded on GPU when executing the shader.
void	setFloatData (const QVector< Vector > &floatData, qsizetype ptr)
	Write in the 'FloatBuffer'. This is a read only buffer loaded on GPU when executing the shader.
void	setFloatData (const QVector< Matrix > &floatData, qsizetype ptr)
	Write in the 'FloatBuffer'. This is a read only buffer loaded on GPU when executing the shader.
int	GetFloatBufferSize () const
	return the size of the 'FloatBuffer'
const float *	GetFloatBufferData () const
	return the data of the 'FloatBuffer'
QVector< float >	GetFloatBufferDataQVector () const
	return the data of the 'FloatBuffer'

Protected Member Functions
QString	getPRIMITIVE (const QString &, std::map< QString, bool > &) const
	Return the glsl code of a primitive and it's dependency.

Protected Attributes
std::map< QString, std::pair< QString, std::list< QString > > >	primitives
	A map with primitive names as key, and a pair of (primitive code, list of primitive dependency) as data.
std::map< QString, QPair< qsizetype, qsizetype > >	memoryNames
	A map memory name as key and memory <pointer, block size> as value.

Detailed Description

Primitive management in the construction tree.

Constructor & Destructor Documentation

PrimitiveManager()

PrimitiveManager::PrimitiveManager ( )

explicit

Handle the writing of glsl primitives in an order respecting the dependency.

Author

Hubert-Brierre Pierre

Member Function Documentation

Alloc() [1/2]

qsizetype PrimitiveManager::Alloc	(	const QString &	name,
		qsizetype	size )

reserve some memory space in the global OpenGl buffer 'FloatBuffer' that is loaded on the GPU when executing the shader

Parameters

name	name of the allocated memory. If it was already used return the pointer to that previously allocated memory
size	number of float to reserve See SDFFrames::GetShader for use example

Author

Hubert-Brierre Pierre

Alloc() [2/2]

qsizetype PrimitiveManager::Alloc

(

qsizetype

size

)

reserve some memory space in the global OpenGl buffer 'FloatBuffer' that is loaded on the GPU when executing the shader

Parameters

qsizetype

size : number of float to reserve See SDFFrames::GetShader for use example

Author

Hubert-Brierre Pierre

allocsize()

qsizetype PrimitiveManager::allocsize

(

const QString &

name

)

const

Give the size of a memory block. Return 0 if the block is not allocated, allowing check if(!allocisze("name"))malloc("name", ...);.

Parameters

name	name of the allocated memory.

Returns

size number of float to reserved See SDFFrames::GetShader for use example

Author

Hubert-Brierre Pierre

GetFloatBufferData()

const float * PrimitiveManager::GetFloatBufferData

(

)

const

return the data of the 'FloatBuffer'

Author

Hubert-Brierre Pierre

GetFloatBufferDataQVector()

QVector< float > PrimitiveManager::GetFloatBufferDataQVector

(

)

const

return the data of the 'FloatBuffer'

Author

Hubert-Brierre Pierre

GetFloatBufferSize()

int PrimitiveManager::GetFloatBufferSize

(

)

const

return the size of the 'FloatBuffer'

Author

Hubert-Brierre Pierre

getId()

int PrimitiveManager::getId

(

)

get a primitive name that is not in the primitives set yet

Author

Hubert-Brierre Pierre

Create a uniqueId

Author

Hubert-Brierre Pierre

getPRIMITIVE() [1/3]

QString PrimitiveManager::getPRIMITIVE

(

)

return a glsl code of all primitives in an order respecting the dependency

Author

Hubert-Brierre Pierre

getPRIMITIVE() [2/3]

QString PrimitiveManager::getPRIMITIVE ( const QString & name, std::map< QString, bool > & primitivesWritten ) const

protected

Return the glsl code of a primitive and it's dependency.

Author

Hubert-Brierre Pierre

Parameters

name	The primitive to write.
primitivesWritten	A map to manage the primitives (true if the primitive is already written, false if the primitive is encouter but not written, not in the map if the primitive is not encouter yet).

getPRIMITIVE() [3/3]

QString PrimitiveManager::getPRIMITIVE

(

std::list< QString >

names

)

return a glsl code of all primitives in an order respecting the dependency

Author

Hubert-Brierre Pierre

insertPrimitive()

bool PrimitiveManager::insertPrimitive	(	const QString &	name,
		const QString &	glslCode,
		std::list< QString >	dependency = std::list<QString>() )

add a primitive in the shader, return true if the primitive is inserted, false otherwise (if the primitive was already in the list)

Author

Hubert-Brierre Pierre

Parameters

name	Name of the primitive.
glslCode	Code of the primitive.
dependency	List of name of primitive that need to be written before this one.

printGLSL()

QString PrimitiveManager::printGLSL

(

)

Write PRIMITIVE code with identation and newline to help the reading.

Author

Hubert-Brierre Pierre

setDependence()

void PrimitiveManager::setDependence	(	const QString &	name,
		std::list< QString > &	dependency )

set the dependency of a given primitive

Author

Hubert-Brierre Pierre

Parameters

name	Name of the primitive.
dependency	List of name of primitive that need to be written before this one.

setFloatData() [1/4]

void PrimitiveManager::setFloatData	(	const QVector< float > &	floatData,
		qsizetype	ptr )

Write in the 'FloatBuffer'. This is a read only buffer loaded on GPU when executing the shader.

Parameters

floatData	pointer to the float array
pointer	to the start of the memory block in the 'FloatBuffer' (return value of the function PrimitiveManager::malloc)

Author

Hubert-Brierre Pierre

setFloatData() [2/4]

void PrimitiveManager::setFloatData	(	const QVector< Matrix > &	floatData,
		qsizetype	ptr )

Write in the 'FloatBuffer'. This is a read only buffer loaded on GPU when executing the shader.

Parameters

floatData	pointer to the Matrix array. The array will be flatten out : [floatData[0][0], ..., floatData[0][9], floatData[1][0], ...]
ptr	pointer to the start of the memory block in the 'FloatBuffer' (return value of the function PrimitiveManager::malloc)

Author

Hubert-Brierre Pierre

setFloatData() [3/4]

void PrimitiveManager::setFloatData	(	const QVector< Vector > &	floatData,
		qsizetype	ptr )

Write in the 'FloatBuffer'. This is a read only buffer loaded on GPU when executing the shader.

Parameters

QVector<Vector>	floatData : pointer to the Vector array. The array will be flatten out : [floatData[0].x, floatData[0].y, floatData[0].z, floatData[1].x, ...]
qsizetype	ptr : pointer to the start of the memory block in the 'FloatBuffer' (return value of the function PrimitiveManager::malloc)

Author

Hubert-Brierre Pierre

setFloatData() [4/4]

void PrimitiveManager::setFloatData	(	float *	floatData,
		qsizetype	ptr,
		qsizetype	size )

Write in the 'FloatBuffer'. This is a read only buffer loaded on GPU when executing the shader.

Parameters

floatData	pointer to the float array
ptr	pointer to the start of the memory block in the 'FloatBuffer' (return value of the function PrimitiveManager::malloc)
size	number of float to write

Author

Hubert-Brierre Pierre