KisBufferStreamInterleaveUpsample Class Reference

#include <kis_buffer_stream.h>

Inheritance diagram for KisBufferStreamInterleaveUpsample:

Public Member Functions
	KisBufferStreamInterleaveUpsample (uint8_t **srcs, uint16_t nb_samples, uint16_t depth, tsize_t *lineSize, uint16_t hsubsample, uint16_t vsubsample)
void	moveToPos (tsize_t x, tsize_t y) override
uint32_t	nextValue () override
void	restart () override
tsize_t	width () const override
tsize_t	x () const override
tsize_t	y () const override
Public Member Functions inherited from KisBufferStreamSeparate
	KisBufferStreamSeparate (uint8_t **srcs, uint16_t nb_samples, uint16_t depth, tsize_t *lineSize)
void	moveToLine (tsize_t lineNumber) override
void	moveToPos (tsize_t x, tsize_t y) override
uint32_t	nextValue () override
void	restart () override
tsize_t	width () const override
tsize_t	x () const override
tsize_t	y () const override
	~KisBufferStreamSeparate () override=default
Public Member Functions inherited from KisBufferStreamBase
	KisBufferStreamBase (uint16_t depth)
virtual	~KisBufferStreamBase ()=default

Protected Attributes
uint16_t	m_currentPlane = 0
uint16_t	m_hsubsample
uint16_t	m_vsubsample
Protected Attributes inherited from KisBufferStreamSeparate
uint16_t	m_current_sample = 0
uint16_t	m_nb_samples
QVector< QSharedPointer< KisBufferStreamBase > >	streams
Protected Attributes inherited from KisBufferStreamBase
uint16_t	m_depth

Detailed Description

Definition at line 129 of file kis_buffer_stream.h.

Constructor & Destructor Documentation

KisBufferStreamInterleaveUpsample()

KisBufferStreamInterleaveUpsample::KisBufferStreamInterleaveUpsample	(	uint8_t **	srcs,
		uint16_t	nb_samples,
		uint16_t	depth,
		tsize_t *	lineSize,
		uint16_t	hsubsample,
		uint16_t	vsubsample )

Definition at line 212 of file kis_buffer_stream.cc.

    : KisBufferStreamSeparate(srcs, nb_samples, depth, lineSize)
    , m_hsubsample(hsubsample)
    , m_vsubsample(vsubsample)
{
}

Member Function Documentation

moveToPos()

void KisBufferStreamInterleaveUpsample::moveToPos ( tsize_t x, tsize_t y )

overridevirtual

Implements KisBufferStreamBase.

Definition at line 266 of file kis_buffer_stream.cc.

{
    // Needs to subsample
    for (uint16_t i = 0; i < m_nb_samples; i++) {
        const tsize_t realX = i == 0 ? x : x / m_hsubsample;
        const tsize_t realY = i == 0 ? y : y / m_vsubsample;
        streams.at(i)->moveToPos(realX, realY);
    }
}

References m_hsubsample, KisBufferStreamSeparate::m_nb_samples, m_vsubsample, KisBufferStreamSeparate::streams, x(), and y().

nextValue()

uint32_t KisBufferStreamInterleaveUpsample::nextValue ( )

overridevirtual

Implements KisBufferStreamBase.

Definition at line 225 of file kis_buffer_stream.cc.

{
    uint32_t value = streams[m_currentPlane]->nextValue();
    if (m_currentPlane == 0) {
        m_current_sample++;
        if (m_current_sample % m_hsubsample == 0) {
            if (m_current_sample >= m_hsubsample * m_vsubsample) {
                // Fix up the position of the luminance plane
                // If it's already 0, the cursor has already looped (correctly)
                // to the next line
                if (streams[m_currentPlane]->x() != 0) {
                    streams[m_currentPlane]->moveToPos(
                        streams[m_currentPlane]->x(),
                        streams[m_currentPlane]->y() - m_vsubsample + 1);
                }
                // Move to Cb/Cr
                m_currentPlane += 1;
                m_current_sample = 0;
            } else {
                // Go to next line
                // If the position is already 0, we need to correct the row
                // AND column
                if (streams[m_currentPlane]->x() != 0) {
                    streams[m_currentPlane]->moveToPos(
                        streams[m_currentPlane]->x() - m_hsubsample,
                        streams[m_currentPlane]->y() + 1);
                } else {
                    streams[m_currentPlane]->moveToPos(
                        streams[m_currentPlane]->width() - m_hsubsample,
                        streams[m_currentPlane]->y());
                }
            }
        }
    } else if (m_currentPlane < m_nb_samples - 1) {
        m_currentPlane += 1;
    } else {
        m_currentPlane = 0;
    }
    return value;
}

References KisBufferStreamSeparate::m_current_sample, m_currentPlane, m_hsubsample, KisBufferStreamSeparate::m_nb_samples, m_vsubsample, KisBufferStreamSeparate::nextValue(), KisBufferStreamSeparate::streams, value(), width(), x(), and y().

restart()

void KisBufferStreamInterleaveUpsample::restart ( )

inlineoverridevirtual

Implements KisBufferStreamBase.

Definition at line 152 of file kis_buffer_stream.h.

    {
        KisBufferStreamSeparate::restart();
        m_currentPlane = 0;
    }

References m_currentPlane, and KisBufferStreamSeparate::restart().

width()

tsize_t KisBufferStreamInterleaveUpsample::width ( ) const

inlineoverridevirtual

Implements KisBufferStreamBase.

Definition at line 147 of file kis_buffer_stream.h.

    {
        return streams[0]->width();
    }

References KisBufferStreamSeparate::streams.

x()

tsize_t KisBufferStreamInterleaveUpsample::x ( ) const

overridevirtual

Implements KisBufferStreamBase.

Definition at line 276 of file kis_buffer_stream.cc.

{
    return streams[0]->x();
}

References KisBufferStreamSeparate::streams.

y()

tsize_t KisBufferStreamInterleaveUpsample::y ( ) const

overridevirtual

Implements KisBufferStreamBase.

Definition at line 281 of file kis_buffer_stream.cc.

{
    return streams[0]->y();
}

References KisBufferStreamSeparate::streams.

Member Data Documentation

m_currentPlane

uint16_t KisBufferStreamInterleaveUpsample::m_currentPlane = 0

protected

Definition at line 160 of file kis_buffer_stream.h.

m_hsubsample

uint16_t KisBufferStreamInterleaveUpsample::m_hsubsample

protected

Definition at line 159 of file kis_buffer_stream.h.

m_vsubsample

uint16_t KisBufferStreamInterleaveUpsample::m_vsubsample

protected

Definition at line 159 of file kis_buffer_stream.h.

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

• plugins/impex/tiff/kis_buffer_stream.h
• plugins/impex/tiff/kis_buffer_stream.cc