30e27328e3
With OpenGL a scissor (or viewport) rectangle is not allowed to have a negative width or height. Everything else is allowed. This is also the semantic we wish to keep for QRhiViewport and QRhiScissor. This raises some problems. For instance, when we do bottom-left - top-left rectangle conversion, the case of partially out of bounds rects needs to be taken into account. Otherwise, Qt Quick ends up in wrong scissoring in certain cases, typically when the QQuickWindow size is decreased so the content does not fit because that will then start generating negative x, y scissors for clipping (which is perfectly valid but the QRhi backends need to be able to deal with it) Then there is the problem of having to clamp width and height carefully, because some validation layers for some APIs will reject a viewport or scissor with partially out of bounds rectangles. To verify all this, add a new manual test, based on the cubemap one. (cubemap was chosen because that is an ideal test scene as it fills the viewport completely, and so it is visually straightforward when a scissor rectangle is moving around over it) Fixes: QTBUG-78702 Change-Id: I60614836432ea9934fc0dbd0ac7e88931f476542 Reviewed-by: Christian Strømme <christian.stromme@qt.io> |
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| .. | ||
| auto | ||
| baselineserver | ||
| benchmarks | ||
| global | ||
| libfuzzer | ||
| manual | ||
| shared | ||
| testserver | ||
| README | ||
| tests.pro | ||
This directory contains autotests and benchmarks based on Qt Test. In order
to run the autotests reliably, you need to configure a desktop to match the
test environment that these tests are written for.
Linux X11:
* The user must be logged in to an active desktop; you can't run the
autotests without a valid DISPLAY that allows X11 connections.
* The tests are run against a KDE3 or KDE4 desktop.
* Window manager uses "click to focus", and not "focus follows mouse". Many
tests move the mouse cursor around and expect this to not affect focus
and activation.
* Disable "click to activate", i.e., when a window is opened, the window
manager should automatically activate it (give it input focus) and not
wait for the user to click the window.