OpenGL 3D Transition class. More...

#include <TransitionImpl.hxx>

Collaboration diagram for OGLTransitionImpl:

Public Member Functions
virtual	~OGLTransitionImpl ()

	OGLTransitionImpl (const OGLTransitionImpl &)=delete

OGLTransitionImpl &	operator= (const OGLTransitionImpl &)=delete

bool	prepare (sal_Int32 glLeavingSlideTex, sal_Int32 glEnteringSlideTex, OpenGLContext *pContext)
	Prepare transition. More...

void	display (double nTime, sal_Int32 glLeavingSlideTex, sal_Int32 glEnteringSlideTex, double SlideWidth, double SlideHeight, double DispWidth, double DispHeight, OpenGLContext *pContext)
	Display a step of the transition. More...

void	finish ()
	Clean up after transition. More...

TransitionSettings const &	getSettings () const

Protected Member Functions
	OGLTransitionImpl (const TransitionScene &rScene, const TransitionSettings &rSettings)

TransitionScene const &	getScene () const

void	displaySlide (double nTime, sal_Int32 glSlideTex, const Primitives_t &primitives, double SlideWidthScale, double SlideHeightScale)

void	displayUnbufferedSlide (double nTime, sal_Int32 glSlideTex, const Primitives_t &primitives, double SlideWidthScale, double SlideHeightScale)

void	displayScene (double nTime, double SlideWidth, double SlideHeight, double DispWidth, double DispHeight)

void	applyOverallOperations (double nTime, double SlideWidthScale, double SlideHeightScale)

Protected Attributes
GLuint	m_nProgramObject = 0u
	GLSL program object. More...

GLuint	m_nVertexBufferObject = 0u
	VBO in which to put primitive data. More...

GLint	m_nTimeLocation = -1
	Location of the "time" uniform. More...

Private Member Functions
virtual void	prepare (double SlideWidth, double SlideHeight)
	This function is called in display method to prepare the slides, scene, etc. More...

virtual void	cleanup ()
	This function is called in display method to prepare the slides, scene, etc. More...

virtual void	prepareTransition (sal_Int32 glLeavingSlideTex, sal_Int32 glEnteringSlideTex, OpenGLContext *pContext)
	This function is called after glx context is ready to let the transition prepare GL related things, like GLSL program. More...

virtual void	finishTransition ()
	This function is called when the transition needs to clear after itself, like delete own textures etc. More...

virtual void	displaySlides_ (double nTime, sal_Int32 glLeavingSlideTex, sal_Int32 glEnteringSlideTex, double SlideWidthScale, double SlideHeightScale, OpenGLContext *pContext)
	This function is called in display method to display the slides. More...

virtual GLuint	makeShader () const =0
	This function is called in prepare method to create the GL program. More...

void	uploadModelViewProjectionMatrices ()
	Calculates the projection and model/view matrices, and upload them. More...

Private Attributes
const TransitionScene	maScene

const TransitionSettings	maSettings

GLint	m_nPrimitiveTransformLocation = -1
	Uniform locations for transform matrices. More...

GLint	m_nSceneTransformLocation = -1

GLint	m_nOperationsTransformLocation = -1

GLint	m_nPositionLocation = -1
	Per-vertex attribute locations. More...

GLint	m_nNormalLocation = -1

GLint	m_nTexCoordLocation = -1

GLuint	m_nVertexArrayObject = 0u

std::vector< int >	m_nFirstIndices

Detailed Description

OpenGL 3D Transition class.

It implicitly is constructed from XOGLTransition

It holds Primitives and Operations on those primitives.

Definition at line 130 of file TransitionImpl.hxx.

Constructor & Destructor Documentation

◆ ~OGLTransitionImpl()

OGLTransitionImpl::~OGLTransitionImpl ( )

virtual

Definition at line 69 of file TransitionImpl.cxx.

◆ OGLTransitionImpl() [1/2]

OGLTransitionImpl::OGLTransitionImpl ( const OGLTransitionImpl & )

delete

◆ OGLTransitionImpl() [2/2]

OGLTransitionImpl::OGLTransitionImpl	(	const TransitionScene &	rScene,
		const TransitionSettings &	rSettings
	)

inlineprotected

Definition at line 154 of file TransitionImpl.hxx.

Member Function Documentation

◆ applyOverallOperations()

void OGLTransitionImpl::applyOverallOperations	(	double	nTime,
		double	SlideWidthScale,
		double	SlideHeightScale
	)

protected

Definition at line 277 of file TransitionImpl.cxx.

References CHECK_GL_ERROR, TransitionScene::getOperations(), i, slideshow::internal::interpolate(), m_nOperationsTransformLocation, and maScene.

Referenced by displaySlides_().

◆ cleanup()

void OGLTransitionImpl::cleanup ( )

privatevirtual

This function is called in display method to prepare the slides, scene, etc.

Default implementation does nothing.

Definition at line 233 of file TransitionImpl.cxx.

◆ display()

void OGLTransitionImpl::display	(	double	nTime,
		sal_Int32	glLeavingSlideTex,
		sal_Int32	glEnteringSlideTex,
		double	SlideWidth,
		double	SlideHeight,
		double	DispWidth,
		double	DispHeight,
		OpenGLContext *	pContext
	)

Display a step of the transition.

Definition at line 260 of file TransitionImpl.cxx.

References CHECK_GL_ERROR, displayScene(), displaySlides_(), m_nVertexArrayObject, and prepare().

Referenced by displayScene().

◆ displayScene()

void OGLTransitionImpl::displayScene	(	double	nTime,
		double	SlideWidth,
		double	SlideHeight,
		double	DispWidth,
		double	DispHeight
	)

protected

Definition at line 339 of file TransitionImpl.cxx.

References CHECK_GL_ERROR, display(), TransitionScene::getSceneObjects(), i, m_nPrimitiveTransformLocation, m_nSceneTransformLocation, and maScene.

Referenced by display().

◆ displaySlide()

void OGLTransitionImpl::displaySlide	(	double	nTime,
		sal_Int32	glSlideTex,
		const Primitives_t &	primitives,
		double	SlideWidthScale,
		double	SlideHeightScale
	)

protected

Definition at line 297 of file TransitionImpl.cxx.

References CHECK_GL_ERROR, displayPrimitives(), m_nFirstIndices, m_nPrimitiveTransformLocation, and m_nSceneTransformLocation.

Referenced by displaySlides_().

◆ displaySlides_()

void OGLTransitionImpl::displaySlides_	(	double	nTime,
		sal_Int32	glLeavingSlideTex,
		sal_Int32	glEnteringSlideTex,
		double	SlideWidthScale,
		double	SlideHeightScale,
		OpenGLContext *	pContext
	)

privatevirtual

This function is called in display method to display the slides.

Default implementation applies overall operations and then displays both slides.

Definition at line 245 of file TransitionImpl.cxx.

References applyOverallOperations(), CHECK_GL_ERROR, displaySlide(), getScene(), and m_nTimeLocation.

Referenced by display().

◆ displayUnbufferedSlide()

void OGLTransitionImpl::displayUnbufferedSlide	(	double	nTime,
		sal_Int32	glSlideTex,
		const Primitives_t &	primitives,
		double	SlideWidthScale,
		double	SlideHeightScale
	)

protected

Definition at line 314 of file TransitionImpl.cxx.

References CHECK_GL_ERROR, m_nPrimitiveTransformLocation, m_nSceneTransformLocation, m_nVertexArrayObject, and m_nVertexBufferObject.

◆ finish()

void OGLTransitionImpl::finish ( )

Clean up after transition.

Definition at line 208 of file TransitionImpl.cxx.

References CHECK_GL_ERROR, finishTransition(), TransitionScene::getSceneObjects(), i, m_nProgramObject, m_nVertexArrayObject, m_nVertexBufferObject, and maScene.

◆ finishTransition()

void OGLTransitionImpl::finishTransition ( )

privatevirtual

This function is called when the transition needs to clear after itself, like delete own textures etc.

Default implementation does nothing.

Definition at line 241 of file TransitionImpl.cxx.

Referenced by finish().

◆ getScene()

TransitionScene const & OGLTransitionImpl::getScene ( ) const

inlineprotected

Definition at line 159 of file TransitionImpl.hxx.

References maScene.

Referenced by displaySlides_(), and prepare().

◆ getSettings()

TransitionSettings const & OGLTransitionImpl::getSettings ( ) const

inline

Definition at line 148 of file TransitionImpl.hxx.

References maSettings.

◆ makeShader()

virtual GLuint OGLTransitionImpl::makeShader ( ) const

privatepure virtual

This function is called in prepare method to create the GL program.

It is a pure virtual to make sure no class will use a default one.

Referenced by prepare().

◆ operator=()

OGLTransitionImpl & OGLTransitionImpl::operator= ( const OGLTransitionImpl & )

delete

◆ prepare() [1/2]

void OGLTransitionImpl::prepare	(	double	SlideWidth,
		double	SlideHeight
	)

privatevirtual

This function is called in display method to prepare the slides, scene, etc.

Default implementation does nothing.

Definition at line 229 of file TransitionImpl.cxx.

◆ prepare() [2/2]

bool OGLTransitionImpl::prepare	(	sal_Int32	glLeavingSlideTex,
		sal_Int32	glEnteringSlideTex,
		OpenGLContext *	pContext
	)

Prepare transition.

Definition at line 136 of file TransitionImpl.cxx.

References CHECK_GL_ERROR, getScene(), TransitionScene::getSceneObjects(), i, m_nFirstIndices, m_nNormalLocation, m_nOperationsTransformLocation, m_nPositionLocation, m_nPrimitiveTransformLocation, m_nProgramObject, m_nSceneTransformLocation, m_nTexCoordLocation, m_nTimeLocation, m_nVertexArrayObject, m_nVertexBufferObject, makeShader(), maScene, normal, position(), prepareTransition(), uploadModelViewProjectionMatrices(), and uploadPrimitives().

Referenced by display().

◆ prepareTransition()

void OGLTransitionImpl::prepareTransition	(	sal_Int32	glLeavingSlideTex,
		sal_Int32	glEnteringSlideTex,
		OpenGLContext *	pContext
	)

privatevirtual

This function is called after glx context is ready to let the transition prepare GL related things, like GLSL program.

Default implementation does nothing.

Definition at line 237 of file TransitionImpl.cxx.

Referenced by prepare().

◆ uploadModelViewProjectionMatrices()

void OGLTransitionImpl::uploadModelViewProjectionMatrices ( )

private

Calculates the projection and model/view matrices, and upload them.

Definition at line 73 of file TransitionImpl.cxx.

References CHECK_GL_ERROR, m_nProgramObject, and scale.

Referenced by prepare().

Member Data Documentation

◆ m_nFirstIndices

std::vector<int> OGLTransitionImpl::m_nFirstIndices

private

Definition at line 229 of file TransitionImpl.hxx.

Referenced by displaySlide(), and prepare().

◆ m_nNormalLocation

GLint OGLTransitionImpl::m_nNormalLocation = -1

private

Definition at line 224 of file TransitionImpl.hxx.

Referenced by prepare().

◆ m_nOperationsTransformLocation

GLint OGLTransitionImpl::m_nOperationsTransformLocation = -1

private

Definition at line 219 of file TransitionImpl.hxx.

Referenced by applyOverallOperations(), and prepare().

◆ m_nPositionLocation

GLint OGLTransitionImpl::m_nPositionLocation = -1

private

Per-vertex attribute locations.

Definition at line 223 of file TransitionImpl.hxx.

Referenced by prepare().

◆ m_nPrimitiveTransformLocation

GLint OGLTransitionImpl::m_nPrimitiveTransformLocation = -1

private

Uniform locations for transform matrices.

Definition at line 217 of file TransitionImpl.hxx.

Referenced by displayScene(), displaySlide(), displayUnbufferedSlide(), and prepare().

◆ m_nProgramObject

GLuint OGLTransitionImpl::m_nProgramObject = 0u

protected

GLSL program object.

Definition at line 234 of file TransitionImpl.hxx.

Referenced by finish(), prepare(), and uploadModelViewProjectionMatrices().

◆ m_nSceneTransformLocation

GLint OGLTransitionImpl::m_nSceneTransformLocation = -1

private

Definition at line 218 of file TransitionImpl.hxx.

Referenced by displayScene(), displaySlide(), displayUnbufferedSlide(), and prepare().

◆ m_nTexCoordLocation

GLint OGLTransitionImpl::m_nTexCoordLocation = -1

private

Definition at line 225 of file TransitionImpl.hxx.

Referenced by prepare().

◆ m_nTimeLocation

GLint OGLTransitionImpl::m_nTimeLocation = -1

protected

Location of the "time" uniform.

Definition at line 242 of file TransitionImpl.hxx.

Referenced by displaySlides_(), and prepare().

◆ m_nVertexArrayObject

GLuint OGLTransitionImpl::m_nVertexArrayObject = 0u

private

Definition at line 227 of file TransitionImpl.hxx.

Referenced by display(), displayUnbufferedSlide(), finish(), and prepare().

◆ m_nVertexBufferObject

GLuint OGLTransitionImpl::m_nVertexBufferObject = 0u

protected

VBO in which to put primitive data.

Definition at line 238 of file TransitionImpl.hxx.

Referenced by displayUnbufferedSlide(), finish(), and prepare().

◆ maScene

const TransitionScene OGLTransitionImpl::maScene

private

Definition at line 208 of file TransitionImpl.hxx.

Referenced by applyOverallOperations(), displayScene(), finish(), getScene(), and prepare().

◆ maSettings

const TransitionSettings OGLTransitionImpl::maSettings

private

Definition at line 209 of file TransitionImpl.hxx.

Referenced by getSettings().

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

Public Member Functions

Protected Member Functions

Protected Attributes

Private Member Functions

Private Attributes

Detailed Description

Constructor & Destructor Documentation

◆ ~OGLTransitionImpl()

◆ OGLTransitionImpl() [1/2]

◆ OGLTransitionImpl() [2/2]

Member Function Documentation

◆ applyOverallOperations()

◆ cleanup()

◆ display()

◆ displayScene()

◆ displaySlide()

◆ displaySlides_()

◆ displayUnbufferedSlide()

◆ finish()

◆ finishTransition()

◆ getScene()

◆ getSettings()

◆ makeShader()

◆ operator=()

◆ prepare() [1/2]

◆ prepare() [2/2]

◆ prepareTransition()

◆ uploadModelViewProjectionMatrices()

Member Data Documentation

◆ m_nFirstIndices

◆ m_nNormalLocation

◆ m_nOperationsTransformLocation

◆ m_nPositionLocation

◆ m_nPrimitiveTransformLocation

◆ m_nProgramObject

◆ m_nSceneTransformLocation

◆ m_nTexCoordLocation

◆ m_nTimeLocation

◆ m_nVertexArrayObject

◆ m_nVertexBufferObject

◆ maScene

◆ maSettings