#include <kis_buffer_stream.h>

Inheritance diagram for KisBufferStreamContigBelow16:

Public Member Functions
	KisBufferStreamContigBelow16 (uint8_t *src, uint16_t depth, tsize_t lineSize)

uint32_t	nextValue () override

	~KisBufferStreamContigBelow16 () override=default

Public Member Functions inherited from KisBufferStreamContigBase
	KisBufferStreamContigBase (uint8_t *src, uint16_t depth, tsize_t lineSize)

void	moveToLine (tsize_t lineNumber) override

void	moveToPos (tsize_t x, tsize_t y) override

void	restart () override

tsize_t	width () const override

tsize_t	x () const override

tsize_t	y () const override

	~KisBufferStreamContigBase () override=default

Public Member Functions inherited from KisBufferStreamBase
	KisBufferStreamBase (uint16_t depth)

virtual	~KisBufferStreamBase ()=default

Additional Inherited Members
Protected Attributes inherited from KisBufferStreamContigBase
tsize_t	m_lineNumber = 0

tsize_t	m_lineOffset = 0

const tsize_t	m_lineSize

uint16_t	m_posinc = 0

uint8_t *const	m_src

uint8_t *	m_srcIt

Protected Attributes inherited from KisBufferStreamBase
uint16_t	m_depth

Detailed Description

Definition at line 63 of file kis_buffer_stream.h.

Constructor & Destructor Documentation

◆ KisBufferStreamContigBelow16()

KisBufferStreamContigBelow16::KisBufferStreamContigBelow16	(	uint8_t *	src,
		uint16_t	depth,
		tsize_t	lineSize )

inline

Definition at line 66 of file kis_buffer_stream.h.

        : KisBufferStreamContigBase(src, depth, lineSize)
    {
    }

◆ ~KisBufferStreamContigBelow16()

KisBufferStreamContigBelow16::~KisBufferStreamContigBelow16 ( )

overridedefault

Member Function Documentation

◆ nextValue()

uint32_t KisBufferStreamContigBelow16::nextValue ( )

overridevirtual

Implements KisBufferStreamBase.

Definition at line 64 of file kis_buffer_stream.cc.

{
    uint16_t remain = m_depth;
    uint32_t value =  0 ;
    while (remain > 0) {
        uint16_t toread = remain;
        if (toread > m_posinc) toread = m_posinc;
        remain -= toread;
        m_posinc -= toread;
        value = (value << toread) | (((*m_srcIt) >> (m_posinc)) & ((1 << toread) - 1));
        if (m_posinc == 0) {
            m_srcIt++;
            m_lineOffset++; // we consumed a byte
            m_posinc = 8;
        }
    }
    if (m_lineOffset >= m_lineSize) {
        m_lineNumber += 1;
        m_lineOffset = 0;
    }
    return value;
}

References KisBufferStreamBase::m_depth, KisBufferStreamContigBase::m_lineNumber, KisBufferStreamContigBase::m_lineOffset, KisBufferStreamContigBase::m_lineSize, KisBufferStreamContigBase::m_posinc, KisBufferStreamContigBase::m_srcIt, and value().

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