D2D image vertical flip issue

reuk · January 22, 2026, 10:41am

Thanks for reporting, a fix for this issue has been published:

Direct2D: Draw images correctly when transformed with a vertical or horizontal flip

committed 06:26PM - 21 Jan 26 UTC

Previously, drawing a mirrored image would produce incorrect results. Scaling tr…ansforms were applied correctly, but mirroring was not. The following code is an example of a drawing routine that previously produced incorrect results. g.fillAll (juce::Colours::grey); juce::Image image { juce::Image::PixelFormat::ARGB, 512, 512, false }; { juce::Graphics h { image }; h.setGradientFill (juce::ColourGradient { juce::Colours::cyan, {}, juce::Colours::magenta, { 512, 512 }, false }); h.fillAll(); } const auto cy = getHeight() / 2; g.drawImageWithin (image, 0, 0, getWidth(), cy, juce::RectanglePlacement::stretchToFit); const auto transform = juce::AffineTransform::verticalFlip ((float) cy) .translated (0, (float) cy); g.addTransform (transform); g.drawImageWithin (image, 0, 0, getWidth(), cy, juce::RectanglePlacement::stretchToFit);

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D2D image vertical flip issue

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