TVScreen Class Reference

#include <tvscreen.h>

Inheritance diagram for TVScreen:

Collaboration diagram for TVScreen:

Signals
void	traceSizeChanged (int)
void	sampleRateChanged (int)

Public Member Functions
	TVScreen (bool blnColor, QWidget *parent=0)
virtual	~TVScreen ()
void	setColor (bool blnColor)
void	resizeTVScreen (int intCols, int intRows)
void	getSize (int &intCols, int &intRows) const
void	renderImage (unsigned char *objData)
QRgb *	getRowBuffer (int intRow)
void	resetImage ()
void	resetImage (int alpha)
bool	selectRow (int intLine)
bool	setDataColor (int intCol, int intRed, int intGreen, int intBlue)
bool	setDataColor (int intCol, int intRed, int intGreen, int intBlue, int intAlpha)
void	setAlphaBlend (bool blnAlphaBlend)
void	setAlphaReset ()
void	connectTimer (const QTimer &timer)

Static Public Attributes
static const int	TV_COLS =256
static const int	TV_ROWS =256

Protected Slots
void	cleanup ()
void	tick ()

Private Member Functions
void	initializeGL ()
void	resizeGL (int width, int height)
void	paintGL ()
void	mousePressEvent (QMouseEvent *)

Private Attributes
bool	m_blnGLContextInitialized
int	m_intAskedCols
int	m_intAskedRows
QTimer	m_objTimer
QMutex	m_objMutex
bool	m_blnDataChanged
bool	m_blnConfigChanged
GLShaderTVArray	m_objGLShaderArray
int	m_cols
int	m_rows
unsigned char *	m_chrLastData

Detailed Description

Definition at line 39 of file tvscreen.h.

Constructor & Destructor Documentation

TVScreen()

TVScreen::TVScreen	(	bool	blnColor,
		QWidget *	parent = 0
	)

Definition at line 31 of file tvscreen.cpp.

References m_blnConfigChanged, m_blnDataChanged, m_blnGLContextInitialized, m_chrLastData, m_cols, m_intAskedCols, m_intAskedRows, m_objTimer, m_rows, tick(), TV_COLS, and TV_ROWS.

                                                 :
        QGLWidget(parent), m_objMutex(QMutex::NonRecursive), m_objGLShaderArray(blnColor)
{
    setAttribute(Qt::WA_OpaquePaintEvent);
    connect(&m_objTimer, SIGNAL(timeout()), this, SLOT(tick()));
    m_objTimer.start(40); // capped at 25 FPS

    m_chrLastData = NULL;
    m_blnConfigChanged = false;
    m_blnDataChanged = false;
    m_blnGLContextInitialized = false;

    //Par défaut
    m_intAskedCols = TV_COLS;
    m_intAskedRows = TV_ROWS;
    m_cols = TV_COLS;
    m_rows = TV_ROWS;
}

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~TVScreen()

TVScreen::~TVScreen ( )

virtual

Definition at line 50 of file tvscreen.cpp.

References cleanup().

{
    cleanup();
}

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Member Function Documentation

cleanup

void TVScreen::cleanup ( )

protectedslot

Definition at line 204 of file tvscreen.cpp.

References GLShaderTVArray::Cleanup(), m_blnGLContextInitialized, and m_objGLShaderArray.

Referenced by initializeGL(), and ~TVScreen().

{
    if (m_blnGLContextInitialized)
    {
        m_objGLShaderArray.Cleanup();
    }
}

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connectTimer()

void TVScreen::connectTimer

(

const QTimer &

timer

)

Definition at line 196 of file tvscreen.cpp.

References m_objTimer, and tick().

{
     qDebug() << "TVScreen::connectTimer";
     disconnect(&m_objTimer, SIGNAL(timeout()), this, SLOT(tick()));
     connect(&objTimer, SIGNAL(timeout()), this, SLOT(tick()));
     m_objTimer.stop();
}

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getRowBuffer()

QRgb * TVScreen::getRowBuffer

(

int

intRow

)

Definition at line 60 of file tvscreen.cpp.

References GLShaderTVArray::GetRowBuffer(), m_blnGLContextInitialized, and m_objGLShaderArray.

{
    if (!m_blnGLContextInitialized)
    {
        return NULL;
    }

    return m_objGLShaderArray.GetRowBuffer(intRow);
}

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getSize()

void TVScreen::getSize	(	int &	intCols,
		int &	intRows
	)		const

Definition at line 95 of file tvscreen.cpp.

References m_cols, and m_rows.

Referenced by ScopeVisXY::feed().

{
    intCols = m_cols;
    intRows = m_rows;
}

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initializeGL()

void TVScreen::initializeGL ( )

private

Definition at line 101 of file tvscreen.cpp.

References cleanup(), m_blnGLContextInitialized, and m_objMutex.

{
    m_objMutex.lock();

    QOpenGLContext *objGlCurrentContext = QOpenGLContext::currentContext();

    if (objGlCurrentContext)
    {
        if (QOpenGLContext::currentContext()->isValid())
        {
            qDebug() << "TVScreen::initializeGL: context:"
                    << " major: " << (QOpenGLContext::currentContext()->format()).majorVersion()
                    << " minor: " << (QOpenGLContext::currentContext()->format()).minorVersion()
                    << " ES: " << (QOpenGLContext::currentContext()->isOpenGLES() ? "yes" : "no");
        }
        else
        {
            qDebug() << "TVScreen::initializeGL: current context is invalid";
        }
    }
    else
    {
        qCritical() << "TVScreen::initializeGL: no current context";
        return;
    }

    QSurface *objSurface = objGlCurrentContext->surface();

    if (objSurface == NULL)
    {
        qCritical() << "TVScreen::initializeGL: no surface attached";
        return;
    }
    else
    {
        if (objSurface->surfaceType() != QSurface::OpenGLSurface)
        {
            qCritical() << "TVScreen::initializeGL: surface is not an OpenGLSurface: "
                    << objSurface->surfaceType()
                    << " cannot use an OpenGL context";
            return;
        }
        else
        {
            qDebug() << "TVScreen::initializeGL: OpenGL surface:"
                    << " class: " << (objSurface->surfaceClass() == QSurface::Window ? "Window" : "Offscreen");
        }
    }

    connect(objGlCurrentContext, &QOpenGLContext::aboutToBeDestroyed, this,
            &TVScreen::cleanup); // TODO: when migrating to QOpenGLWidget

    m_blnGLContextInitialized = true;

    m_objMutex.unlock();
}

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mousePressEvent()

void TVScreen::mousePressEvent ( QMouseEvent *  event )

private

Definition at line 184 of file tvscreen.cpp.

{
    (void) event;
}

paintGL()

void TVScreen::paintGL ( )

private

Definition at line 165 of file tvscreen.cpp.

References GLShaderTVArray::InitializeGL(), m_blnDataChanged, m_chrLastData, m_intAskedCols, m_intAskedRows, m_objGLShaderArray, m_objMutex, and GLShaderTVArray::RenderPixels().

{
    if (!m_objMutex.tryLock(2))
        return;

    m_blnDataChanged = false;

    if ((m_intAskedCols != 0) && (m_intAskedRows != 0))
    {
        m_objGLShaderArray.InitializeGL(m_intAskedCols, m_intAskedRows);
        m_intAskedCols = 0;
        m_intAskedRows = 0;
    }

    m_objGLShaderArray.RenderPixels(m_chrLastData);

    m_objMutex.unlock();
}

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renderImage()

void TVScreen::renderImage

(

unsigned char *

objData

)

Definition at line 70 of file tvscreen.cpp.

References m_blnDataChanged, and m_chrLastData.

Referenced by ScopeVisXY::feed(), ATVDemod::processClassic(), ATVDemod::processHSkip(), DATVideoRender::RenderStream(), leansdr::datvconstellation< leansdr::f32 >::run(), and leansdr::datvdvbs2constellation< leansdr::f32 >::run().

{
    m_chrLastData = objData;
    m_blnDataChanged = true;
}

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resetImage() [1/2]

void TVScreen::resetImage

(

)

Definition at line 76 of file tvscreen.cpp.

References m_objGLShaderArray, and GLShaderTVArray::ResetPixels().

Referenced by ScopeVisXY::feed(), DATVideoRender::RenderStream(), leansdr::datvconstellation< leansdr::f32 >::run(), and leansdr::datvdvbs2constellation< leansdr::f32 >::run().

{
    m_objGLShaderArray.ResetPixels();
}

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resetImage() [2/2]

void TVScreen::resetImage

(

int

alpha

)

Definition at line 81 of file tvscreen.cpp.

References m_objGLShaderArray, and GLShaderTVArray::ResetPixels().

{
    m_objGLShaderArray.ResetPixels(alpha);
}

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resizeGL()

void TVScreen::resizeGL ( int  width, int  height  )

private

Definition at line 158 of file tvscreen.cpp.

References m_blnConfigChanged.

{
    QOpenGLFunctions *ptrF = QOpenGLContext::currentContext()->functions();
    ptrF->glViewport(0, 0, intWidth, intHeight);
    m_blnConfigChanged = true;
}

resizeTVScreen()

void TVScreen::resizeTVScreen	(	int	intCols,
		int	intRows
	)

Definition at line 86 of file tvscreen.cpp.

References m_cols, m_intAskedCols, m_intAskedRows, and m_rows.

Referenced by ATVDemod::applySettings(), and DATVideoRender::RenderStream().

{
    qDebug("TVScreen::resizeTVScreen: cols: %d, rows: %d", intCols, intRows);
    m_intAskedCols = intCols;
    m_intAskedRows = intRows;
    m_cols = intCols;
    m_rows = intRows;
}

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sampleRateChanged

void TVScreen::sampleRateChanged ( int  )

signal

selectRow()

bool TVScreen::selectRow

(

int

intLine

)

Definition at line 212 of file tvscreen.cpp.

References m_blnGLContextInitialized, m_objGLShaderArray, and GLShaderTVArray::SelectRow().

Referenced by ScopeVisXY::drawGraticule(), ScopeVisXY::feed(), ATVDemod::processClassic(), ATVDemod::processHSkip(), leansdr::datvconstellation< leansdr::f32 >::run(), and leansdr::datvdvbs2constellation< leansdr::f32 >::run().

{
    if (m_blnGLContextInitialized)
    {
        return m_objGLShaderArray.SelectRow(intLine);
    }
    else
    {
        return false;
    }
}

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setAlphaBlend()

void TVScreen::setAlphaBlend ( bool  blnAlphaBlend )

inline

Definition at line 59 of file tvscreen.h.

Referenced by ScopeVisXY::ScopeVisXY().

{ m_objGLShaderArray.setAlphaBlend(blnAlphaBlend); }

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setAlphaReset()

void TVScreen::setAlphaReset ( )

inline

Definition at line 60 of file tvscreen.h.

Referenced by ScopeVisXY::setPixelsPerFrame().

{ m_objGLShaderArray.setAlphaReset(); }

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setColor()

void TVScreen::setColor

(

bool

blnColor

)

Definition at line 55 of file tvscreen.cpp.

References m_objGLShaderArray, and GLShaderTVArray::setColor().

{
    m_objGLShaderArray.setColor(blnColor);
}

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setDataColor() [1/2]

bool TVScreen::setDataColor	(	int	intCol,
		int	intRed,
		int	intGreen,
		int	intBlue
	)

Definition at line 224 of file tvscreen.cpp.

References m_blnGLContextInitialized, m_objGLShaderArray, and GLShaderTVArray::SetDataColor().

Referenced by ScopeVisXY::drawGraticule(), ScopeVisXY::feed(), ATVDemod::processClassic(), ATVDemod::processHSkip(), leansdr::datvconstellation< leansdr::f32 >::run(), and leansdr::datvdvbs2constellation< leansdr::f32 >::run().

{
    if (m_blnGLContextInitialized)
    {
        return m_objGLShaderArray.SetDataColor(intCol, qRgb(intBlue, intGreen, intRed)); // FIXME: blue <> red inversion in shader
    }
    else
    {
        return false;
    }
}

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setDataColor() [2/2]

bool TVScreen::setDataColor	(	int	intCol,
		int	intRed,
		int	intGreen,
		int	intBlue,
		int	intAlpha
	)

Definition at line 236 of file tvscreen.cpp.

References m_blnGLContextInitialized, m_objGLShaderArray, and GLShaderTVArray::SetDataColor().

{
    if (m_blnGLContextInitialized)
    {
        return m_objGLShaderArray.SetDataColor(intCol, qRgba(intBlue, intGreen, intRed, intAlpha)); // FIXME: blue <> red inversion in shader
    }
    else
    {
        return false;
    }
}

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tick

void TVScreen::tick ( )

protectedslot

Definition at line 189 of file tvscreen.cpp.

References m_blnDataChanged.

Referenced by connectTimer(), and TVScreen().

{
    if (m_blnDataChanged) {
        update();
    }
}

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traceSizeChanged

void TVScreen::traceSizeChanged ( int  )

signal

Member Data Documentation

m_blnConfigChanged

bool TVScreen::m_blnConfigChanged

private

Definition at line 82 of file tvscreen.h.

Referenced by resizeGL(), and TVScreen().

m_blnDataChanged

bool TVScreen::m_blnDataChanged

private

Definition at line 81 of file tvscreen.h.

Referenced by paintGL(), renderImage(), tick(), and TVScreen().

m_blnGLContextInitialized

bool TVScreen::m_blnGLContextInitialized

private

Definition at line 73 of file tvscreen.h.

Referenced by cleanup(), getRowBuffer(), initializeGL(), selectRow(), setDataColor(), and TVScreen().

m_chrLastData

unsigned char* TVScreen::m_chrLastData

private

Definition at line 95 of file tvscreen.h.

Referenced by paintGL(), renderImage(), and TVScreen().

m_cols

int TVScreen::m_cols

private

Definition at line 86 of file tvscreen.h.

Referenced by getSize(), resizeTVScreen(), and TVScreen().

m_intAskedCols

int TVScreen::m_intAskedCols

private

Definition at line 74 of file tvscreen.h.

Referenced by paintGL(), resizeTVScreen(), and TVScreen().

m_intAskedRows

int TVScreen::m_intAskedRows

private

Definition at line 75 of file tvscreen.h.

Referenced by paintGL(), resizeTVScreen(), and TVScreen().

m_objGLShaderArray

GLShaderTVArray TVScreen::m_objGLShaderArray

private

Definition at line 84 of file tvscreen.h.

Referenced by cleanup(), getRowBuffer(), paintGL(), resetImage(), selectRow(), setColor(), and setDataColor().

m_objMutex

QMutex TVScreen::m_objMutex

private

Definition at line 80 of file tvscreen.h.

Referenced by initializeGL(), and paintGL().

m_objTimer

QTimer TVScreen::m_objTimer

private

Definition at line 79 of file tvscreen.h.

Referenced by connectTimer(), and TVScreen().

m_rows

int TVScreen::m_rows

private

Definition at line 87 of file tvscreen.h.

Referenced by getSize(), resizeTVScreen(), and TVScreen().

TV_COLS

const int TVScreen::TV_COLS =256

static

Definition at line 65 of file tvscreen.h.

Referenced by TVScreen().

TV_ROWS

const int TVScreen::TV_ROWS =256

static

Definition at line 66 of file tvscreen.h.

Referenced by TVScreen().

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

• sdrgui/gui/tvscreen.h
• sdrgui/gui/tvscreen.cpp