Internal implementation of GLUP context. More...

#include <geogram_gfx/basic/common.h>
#include <geogram_gfx/GLUP/GLUP.h>
#include <geogram_gfx/GLUP/GLUP_marching_cells.h>
#include <geogram_gfx/basic/GLSL.h>
#include <map>

Classes
class	GLUP::MatrixStack
	A Matrix stack. More...

struct	GLUP::MatrixStack::Matrix

class	GLUP::ImmediateBuffer
	A buffer used by GLUP in immediate mode. More...

class	GLUP::ImmediateState
	Stores all the buffers used to implement the immediate-mode interface. More...

class	GLUP::StateVariableBase
	Base class for representing GLUP state variables. More...

class	GLUP::StateVariable< T >
	A GLUP state variable of a given type. More...

class	GLUP::FloatsArrayStateVariable
	A GLUP state variable that contains an array of floating points. This concerns both vectors and matrices. More...

class	GLUP::VectorStateVariable
	A GLUP state variable that contains a vector. More...

struct	GLUP::UniformState
	The set of state variables that represent GLUP uniform state. More...

struct	GLUP::PrimitiveInfo
	Stores the programs and vertex array object used to display a primitive of a given type. More...

class	GLUP::Context
	GLUP context stores a Uniform Buffer Object with state variables similar to OpenGL's fixed functionality pipeline, and a set of Vertex Buffer Objects to emulate OpenGL's immediate mode. More...

Enumerations
enum	GLUP::GLUPattribute { GLUP_VERTEX_ATTRIBUTE = 0 , GLUP_COLOR_ATTRIBUTE = 1 , GLUP_TEX_COORD_ATTRIBUTE = 2 , GLUP_NORMAL_ATTRIBUTE = 3 , GLUP_VERTEX_ID_ATTRIBUTE = 4 }
	Index of an ImmediateBuffer in the ImmediateState. More...

Functions
GLboolean	GLUP::invert_matrix (GLfloat inv[16], const GLfloat m[16])
	Computes the inverse of a 4x4 matrix.

GLboolean	GLUP::invert_matrix (GLdouble inv[16], const GLdouble m[16])
	Computes the inverse of a 4x4 matrix.

void	GLUP::mult_matrices (GLfloat out[16], const GLfloat m1[16], const GLfloat m2[16])
	Computes the product of two 4x4 matrices.

void	GLUP::mult_matrices (GLdouble out[16], const GLdouble m1[16], const GLdouble m2[16])
	Computes the product of two 4x4 matrices.

void	GLUP::mult_matrix_vector (GLfloat out[4], const GLfloat m[16], const GLfloat v[4])
	Computes the product of a 4x4 matrix and a vector.

void	GLUP::mult_transpose_matrix_vector (GLfloat out[4], const GLfloat m[16], const GLfloat v[4])
	Computes the product of the transpose of a 4x4 matrix and a vector.

void	GLUP::mult_transpose_matrix_vector (GLdouble out[4], const GLdouble m[16], const GLdouble v[4])
	Computes the product of the transpose of a 4x4 matrix and a vector.

void	GLUP::mult_matrix_vector (GLdouble out[4], const GLdouble m[16], const GLdouble v[4])
	Computes the product of a 4x4 matrix and a vector.

void	GLUP::transpose_matrix (GLfloat m[16])
	Transposes a matrix in-place.

void	GLUP::transpose_matrix (GLdouble m[16])
	Transposes a matrix in-place.

void	GLUP::show_matrix (const GLfloat m[16])
	For debugging, outputs a matrix to the standard error.

void	GLUP::show_matrix (const GLdouble m[16])
	For debugging, outputs a matrix to the standard error.

void	GLUP::show_vector (const GLfloat v[4])
	For debugging, outputs a vector to the standard error.

void	GLUP::show_vector (const GLdouble v[4])
	For debugging, outputs a vector to the standard error.

void	GLUP::load_identity_matrix (GLfloat out[16])
	Resets a matrix to the identity matrix.

void	GLUP::load_identity_matrix (GLdouble out[16])
	Resets a matrix to the identity matrix.

void	GLUP::copy_vector (GLfloat to, const GLfloat from, index_t dim)
	Copies a vector of floats.

void	GLUP::copy_vector (GLdouble to, const GLdouble from, index_t dim)
	Copies a vector of doubles.

void	GLUP::copy_vector (GLfloat to, const GLdouble from, index_t dim)
	Copies a vector of doubles to a vector of floats.

void	GLUP::copy_vector (GLdouble to, const GLfloat from, index_t dim)
	Copies a vector of floats to a vector of doubles.

void	GLUP::normalize_vector (GLfloat v[3])
	Normalizes a vector.

Detailed Description

Internal implementation of GLUP context.

Definition in file GLUP_context.h.

Enumeration Type Documentation

◆ GLUPattribute

enum GLUP::GLUPattribute

Index of an ImmediateBuffer in the ImmediateState.

GLUP_VERTEX_ID_ATTRIBUTE is used internally

Definition at line 347 of file GLUP_context.h.

Function Documentation

◆ copy_vector() [1/4]

void GLUP::copy_vector	(	GLdouble *	to,
		const GLdouble *	from,
		index_t	dim
	)

inline

Copies a vector of doubles.

Parameters

[out]	to	a pointer to the destination vector
[in]	from	a const pointer to the source vector
[in]	dim	the number of components to copy

Definition at line 226 of file GLUP_context.h.

◆ copy_vector() [2/4]

void GLUP::copy_vector	(	GLdouble *	to,
		const GLfloat *	from,
		index_t	dim
	)

inline

Copies a vector of floats to a vector of doubles.

Parameters

[out]	to	a pointer to the destination vector
[in]	from	a const pointer to the source vector
[in]	dim	the number of components to copy

Definition at line 248 of file GLUP_context.h.

◆ copy_vector() [3/4]

void GLUP::copy_vector	(	GLfloat *	to,
		const GLdouble *	from,
		index_t	dim
	)

inline

Copies a vector of doubles to a vector of floats.

Parameters

[out]	to	a pointer to the destination vector
[in]	from	a const pointer to the source vector
[in]	dim	the number of components to copy

Definition at line 236 of file GLUP_context.h.

◆ copy_vector() [4/4]

void GLUP::copy_vector	(	GLfloat *	to,
		const GLfloat *	from,
		index_t	dim
	)

inline

Copies a vector of floats.

Parameters

[out]	to	a pointer to the destination vector
[in]	from	a const pointer to the source vector
[in]	dim	the number of components to copy

Definition at line 216 of file GLUP_context.h.

◆ invert_matrix() [1/2]

GLboolean GLUP::invert_matrix	(	GLdouble	inv[16],
		const GLdouble	m[16]
	)

Computes the inverse of a 4x4 matrix.

Parameters

[out]	inv	the computed inverse of `m`
[in]	m	pointer to the input matrix

Return values

GL_TRUE	if the matrix `m` is invertible
GL_FALSE	if the matrix `m` is singular. Then `inv` receives the transpose of the comatrix of `m`

◆ invert_matrix() [2/2]

GLboolean GLUP::invert_matrix	(	GLfloat	inv[16],
		const GLfloat	m[16]
	)

Computes the inverse of a 4x4 matrix.

Parameters

[out]	inv	the computed inverse of `m`
[in]	m	pointer to the input matrix

Return values

GL_TRUE	if the matrix `m` is invertible
GL_FALSE	if the matrix `m` is singular. Then `inv` receives the transpose of the comatrix of `m`

◆ load_identity_matrix() [1/2]

void GLUP::load_identity_matrix ( GLdouble out[16] )

Resets a matrix to the identity matrix.

Parameters

[out] out the matrix to be reset.

◆ load_identity_matrix() [2/2]

void GLUP::load_identity_matrix ( GLfloat out[16] )

Resets a matrix to the identity matrix.

Parameters

[out] out the matrix to be reset.

◆ mult_matrices() [1/2]

void GLUP::mult_matrices	(	GLdouble	out[16],
		const GLdouble	m1[16],
		const GLdouble	m2[16]
	)

Computes the product of two 4x4 matrices.

Parameters

[out]	out	the computed product `m1` * `m2`
[in]	m1,m2	pointers to the input matrices

◆ mult_matrices() [2/2]

void GLUP::mult_matrices	(	GLfloat	out[16],
		const GLfloat	m1[16],
		const GLfloat	m2[16]
	)

Computes the product of two 4x4 matrices.

Parameters

[out]	out	the computed product `m1` * `m2`
[in]	m1,m2	pointers to the input matrices

◆ mult_matrix_vector() [1/2]

void GLUP::mult_matrix_vector	(	GLdouble	out[4],
		const GLdouble	m[16],
		const GLdouble	v[4]
	)

Computes the product of a 4x4 matrix and a vector.

Parameters

[out]	out	the computed product `m` * `v`
[in]	m	pointer to the input matrix
[in]	v	pointer to the input vector

◆ mult_matrix_vector() [2/2]

void GLUP::mult_matrix_vector	(	GLfloat	out[4],
		const GLfloat	m[16],
		const GLfloat	v[4]
	)

Computes the product of a 4x4 matrix and a vector.

Parameters

[out]	out	the computed product `m` * `v`
[in]	m	pointer to the input matrix
[in]	v	pointer to the input vector \TODO: it seems that in GLSL, w = M*v uses the transpose form, maybe I should change the names !!

◆ mult_transpose_matrix_vector() [1/2]

void GLUP::mult_transpose_matrix_vector	(	GLdouble	out[4],
		const GLdouble	m[16],
		const GLdouble	v[4]
	)

Computes the product of the transpose of a 4x4 matrix and a vector.

Parameters

[out]	out	the computed product `m` * `v`
[in]	m	pointer to the input matrix
[in]	v	pointer to the input vector \TODO: it seems that in GLSL, w = M*v uses this one, maybe I should change the names !!

◆ mult_transpose_matrix_vector() [2/2]

void GLUP::mult_transpose_matrix_vector	(	GLfloat	out[4],
		const GLfloat	m[16],
		const GLfloat	v[4]
	)

Computes the product of the transpose of a 4x4 matrix and a vector.

Parameters

[out]	out	the computed product `m` * `v`
[in]	m	pointer to the input matrix
[in]	v	pointer to the input vector \TODO: it seems that in GLSL, w = M*v uses this one, maybe I should change the names !!

◆ normalize_vector()

void GLUP::normalize_vector ( GLfloat v[3] )

inline

Normalizes a vector.

Parameters

[in,out] v a pointer to the 3 coordinates of the 3d vector to be normalized.

Definition at line 259 of file GLUP_context.h.

◆ show_matrix() [1/2]

void GLUP::show_matrix ( const GLdouble m[16] )

For debugging, outputs a matrix to the standard error.

Parameters

[in] m the matrix to be displayed.

◆ show_matrix() [2/2]

void GLUP::show_matrix ( const GLfloat m[16] )

For debugging, outputs a matrix to the standard error.

Parameters

[in] m the matrix to be displayed.

◆ show_vector() [1/2]

void GLUP::show_vector ( const GLdouble v[4] )

For debugging, outputs a vector to the standard error.

Parameters

[in] v the vector to be displayed

◆ show_vector() [2/2]

void GLUP::show_vector ( const GLfloat v[4] )

For debugging, outputs a vector to the standard error.

Parameters

[in] v the vector to be displayed

◆ transpose_matrix() [1/2]

void GLUP::transpose_matrix ( GLdouble m[16] )

Transposes a matrix in-place.

Parameters

[in,out] m a pointer to the 16 double-precision floating point coefficients of the matrix to be transposed.

◆ transpose_matrix() [2/2]

void GLUP::transpose_matrix ( GLfloat m[16] )

Transposes a matrix in-place.

Parameters

[in,out] m a pointer to the 16 single-precision floating point coefficients of the matrix to be transposed.

Classes

Enumerations

Functions

Detailed Description

Enumeration Type Documentation

◆ GLUPattribute

Function Documentation

◆ copy_vector() [1/4]

◆ copy_vector() [2/4]

◆ copy_vector() [3/4]

◆ copy_vector() [4/4]

◆ invert_matrix() [1/2]

◆ invert_matrix() [2/2]

◆ load_identity_matrix() [1/2]

◆ load_identity_matrix() [2/2]

◆ mult_matrices() [1/2]

◆ mult_matrices() [2/2]

◆ mult_matrix_vector() [1/2]

◆ mult_matrix_vector() [2/2]

◆ mult_transpose_matrix_vector() [1/2]

◆ mult_transpose_matrix_vector() [2/2]

◆ normalize_vector()

◆ show_matrix() [1/2]

◆ show_matrix() [2/2]

◆ show_vector() [1/2]

◆ show_vector() [2/2]

◆ transpose_matrix() [1/2]

◆ transpose_matrix() [2/2]