Eirik Aavitsland 824d293601 QPainter: fix assert when drawing bitmaps at very near to .5 coord
The code assumed that the rounding of a floating point value, and the
rounding of the sum of that value and an integer, would always snap in
the same direction. But because of accuracy limits (independently
of the rounding function employed), that is not always the case for
fractions very near to .5.

Fixes: QTBUG-122451
Pick-to: 6.6 6.5 6.2 5.15
Change-Id: I0825d42e6be7f6e3397760a5e9be5dddca42dcdc
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@qt.io>
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
(cherry picked from commit a43d86fe1c0bc9d352f67c134a9ee5f754aea5e6)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
2024-02-20 15:27:31 +00:00
..
2024-02-09 10:50:13 +01:00
2024-02-09 10:50:13 +01:00
2024-02-09 10:50:13 +01:00
2022-05-16 16:37:38 +02:00
2023-04-13 18:30:58 +02:00

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.