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/*
For general Scribus (>=1.3.2) copyright and licensing information please refer
to the COPYING file provided with the program. Following this notice may exist
a copyright and/or license notice that predates the release of Scribus 1.3.2
for which a new license (GPL+exception) is in place.
*/
#include "rawimage.h"
RawImage::RawImage()
{
m_width = 0;
m_height = 0;
m_channels = 0;
resize(0);
}
RawImage::RawImage( int width, int height, int channels )
{
create(width, height, channels);
}
RawImage::~RawImage()
{
resize(0);
}
bool RawImage::create( int width, int height, int channels )
{
m_width = width;
m_height = height;
m_channels = channels;
int finalSize=width * height * channels;
resize(finalSize);
return (size()==finalSize);
}
uchar *RawImage::scanLine(int row)
{
if (row < m_height)
return (uchar*)(data() + (row * m_channels * m_width));
else
return (uchar*)data();
}
void RawImage::setAlpha(int x, int y, int alpha)
{
uchar *d;
if ((y < m_height) && (x < m_width))
{
d = (uchar*)(data() + (y * m_channels * m_width) + (x * m_channels));
d[m_channels-1] = alpha;
}
}
QImage RawImage::convertToQImage(bool cmyk, bool raw)
{
int chans = channels();
QImage img = QImage(width(), height(), QImage::Format_ARGB32);
QRgb *ptr;
uchar *src;
uchar cr, cg, cb, ck, ca;
// img.create(width(), height(), 32);
if (raw)
{
for (int i = 0; i < height(); i++)
{
ptr = (QRgb *)img.scanLine(i);
src = scanLine(i);
for (int j = 0; j < width(); j++)
{
*ptr++ = qRgba(src[0],src[1],src[2],src[3]);
src += chans;
}
}
}
else
{
// img.setAlphaBuffer( true );
for (int i = 0; i < height(); i++)
{
ptr = (QRgb *)img.scanLine(i);
src = scanLine(i);
for (int j = 0; j < width(); j++)
{
if (chans > 1)
{
if (cmyk)
{
ck = src[3];
cr = 255 - qMin(255, src[0] + ck);
cg = 255 - qMin(255, src[1] + ck);
cb = 255 - qMin(255, src[2] + ck);
if (chans > 4)
{
ca = src[4];
*ptr++ = qRgba(cr,cg,cb,ca);
}
else
*ptr++ = qRgba(cr,cg,cb,255);
}
else
{
if (chans > 3)
*ptr++ = qRgba(src[0],src[1],src[2],src[3]);
else
*ptr++ = qRgba(src[0],src[1],src[2],255);
}
}
else
*ptr++ = qRgba(src[0],src[0],src[0],255);
src += chans;
}
}
}
return img;
}
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