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Previously, the backing store and default framebuffer were created with
the logical screen resolution (in device-independent pixels), not the
the physical screen resolution. This lead to blurry text on high-DPI
devices. This change fixes this by creating those at full size, and
setting the device pixel ratio appropriately. Windows are still reported
in device-independent pixels, but text and images are now rendered
sharply for Qt Quick applications.
As QPainter does not support non-integer scaling, the backing store is
still drawn in DIPs and scaled by OpenGL.
Task-number: QTBUG-38464
Change-Id: I7377d4c734126825d670b8ebb65fd0dd1ef705f2
Reviewed-by: Oliver Wolff <oliver.wolff@digia.com>
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If the GL context cannot be made current in the backing store's
constructor, the framebuffer resources won't be allocated. Fix this
by creating an initialization routine that can be called again if it
fails.
The issue was revealed by the GUI Analog Clock demo, which creates the
backing store before the window has a native handle.
Task-number: QTBUG-36008
Change-Id: I875f8183eff60908fc2b46f441bb553b42ff500d
Reviewed-by: Oliver Wolff <oliver.wolff@digia.com>
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Bump the ANGLE version and remove the extra info not required by
universal binaries.
Change-Id: I59983d28e1936fb42aa2def4ca785219b0c38996
Reviewed-by: Oliver Wolff <oliver.wolff@digia.com>
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Change-Id: I6ab8af31f73439172e43fb709831821482b1cc99
Done-with: Kamil Trzcinski
Done-with: Oliver Wolff
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@digia.com>
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