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Bugfixing: soft mask

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This commit is contained in:
Jakub Melka
2021-03-26 19:35:33 +01:00
parent 1b801a2b2a
commit 39ebe08847
3 changed files with 29 additions and 1 deletions
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22
Pdf4QtLib/sources/pdftransparencyrenderer.cpp
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@ -168,6 +168,28 @@ void PDFFloatBitmap::setColorActivity(uint32_t mask)
std::fill(m_activeColorMask.begin(), m_activeColorMask.end(), mask);
}
QImage PDFFloatBitmap::getChannelImage(uint8_t channelIndex) const
{
if (channelIndex >= getPixelSize())
{
return QImage();
}
QImage image(int(getWidth()), int(getHeight()), QImage::Format_Grayscale8);
for (int y = 0; y < image.height(); ++y)
{
uchar* line = image.scanLine(y);
for (int x = 0; x < image.width(); ++x)
{
PDFConstColorBuffer buffer = getPixel(x, y);
line[x] = qRound(buffer[channelIndex] * 255);
}
}
return image;
}
PDFFloatBitmap PDFFloatBitmap::extractProcessColors() const
{
PDFPixelFormat format = PDFPixelFormat::createFormat(m_format.getProcessColorChannelCount(), 0, false, m_format.hasProcessColorsSubtractive(), false);