drivers/stmpe811: introduce conversion for X and Y coordinates #19883
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gschorcht
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gschorcht
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Looks good but needs a rebase |
To obtain coordinates from the touch panel that correspond to the display coordinates, it is often necessary to convert the coordinates from the touch display by swapping and mirroring. For the sake of simplicity, possible rotations are additionally defined.
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Done. |
aabadie
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Sep 2, 2023
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bors merge |
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@aabadie Many thanks for reviewing. |
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Contribution description
To obtain coordinates from the touch panel that correspond to the display coordinates, it is often necessary to convert the coordinates by swapping and mirroring. Instead of hard coding this conversion, it is now controlled by an additional conversion parameter. For the sake of simplicity, possible rotations are predefined.
The PR fixes
tests/pkg/lgvl_touchfor thestm32f429i-disc1board where the coordinates from the touch panel seem to be mirrored in relation to the screen coordinates at the vertical axis.Testing procedure
Flash
tests/pkg/lvgl_touch. Without this PR the coordinates of the button don't correspond to the touch panel coordinates once the button has been pressed. Instead they seem to be mirrored at the vertical axis. With this PR, the coordinates should be correct.Issues/PRs references