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Uncolour mode 1-3 PTUs on monochrome rendering modes

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Gavin MacGregor
2025-06-16 20:22:37 +01:00
parent 7f0de4410b
commit 0fd581925a
1 changed files with 4 additions and 0 deletions
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4
src/qteletextdecoder/render.cpp
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@@ -202,6 +202,10 @@ inline bool TeletextPageRender::drawDRCSCharacter(QPainter &painter, int r, int
// mode 0 (12x10x1) returned here has no colours of its own
// so apply the foreground and background colours of the cell it appears in
drcsImage.setColorTable(QVector<QRgb>{m_backgroundQColor.rgba(), m_foregroundQColor.rgba()});
else if (m_renderMode >= RenderWhiteOnBlack)
// modes 1-3: crudely convert colours to monochrome
for (int i=0; i<16; i++)
drcsImage.setColor(i, qGray(drcsImage.color(i)) > 127 ? 0xffffffff : 0xff000000);
drawFromBitmap(painter, r, c, drcsImage, characterFragment);