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Create empty difference image if images differ in size.

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This commit is contained in:
NissimHadar 2018-09-04 16:17:33 -07:00
parent ca3c797c84
commit d74d3ecab3
1 changed files with 5 additions and 0 deletions
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5
tools/auto-tester/src/ui/MismatchWindow.cpp
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@ -22,6 +22,11 @@ MismatchWindow::MismatchWindow(QWidget *parent) : QDialog(parent) {
} }
QPixmap MismatchWindow::computeDiffPixmap(QImage expectedImage, QImage resultImage) { QPixmap MismatchWindow::computeDiffPixmap(QImage expectedImage, QImage resultImage) {
// Create an empty difference image if the images differ in size
if (expectedImage.height() != resultImage.height() || expectedImage.width() != resultImage.width()) {
return QPixmap();
}
// This is an optimization, as QImage.setPixel() is embarrassingly slow // This is an optimization, as QImage.setPixel() is embarrassingly slow
unsigned char* buffer = new unsigned char[expectedImage.height() * expectedImage.width() * 3]; unsigned char* buffer = new unsigned char[expectedImage.height() * expectedImage.width() * 3];