My KWIN fork where I work on features like per-output virtual desktops
f1491e009e
Summary: Currently the server treats incoming buffers as not premultiplied. KWayland::Client sends data that is ARGB32 and ARGB32_Premultiplied as the same WL_SHM_FORMAT_ARGB8888. According to a post on wayland-devel by Fredrik Höglund, all RGB data should be treated as premultiplied, which matches what Qt is doing. Client now performs a conversion rather than sending mismatched data, Note: This commit will still breaks a bunch of tests in kwin as it compares the server output to a fixed QImage with a format. Test Plan: Existing tests pass Modified surface test to check the pixel data relative to the output QImage format not the input format (i.e both input from ARGB32 and ARGB32_Premultiplied) should both end up in a QImage with format Premultiplied with premultiplied values. The existing test was confirming that data was corrupted, checking that even though the output format was not pre-multiplied, the data was. Reviewers: #plasma, graesslin Reviewed By: #plasma, graesslin Subscribers: plasma-devel, #frameworks Tags: #plasma_on_wayland, #frameworks Differential Revision: https://phabricator.kde.org/D7460 |
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