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Reviewed-by: Trust Me
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Some OpenVG GPU's have limitations on the amount of memory
available to create VGImage's. When the memory runs out,
vgCreateImage() will fail.
This change introduces QVGImagePool, which keeps track of all
QVGPixmapData image allocations and ejects least-recently-used
pixmaps when GPU memory is exhausted.
Task-number: QT-2554
Reviewed-by: trustme
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Under S60, Qt will destroy the window surfaces of an application that
goes into the background, which frees up EGL surface objects. But the
VGImage's for pixmaps, and the EGLContext, were still using GPU memory.
This change keeps track of the number of widgets / window surfaces that
are in use and then calls hibernate() on all QVGPixmapData objects when
it goes to zero. Once all the VGImage's are destroyed, the EGLContext
should also be destroyed.
Task-number: QT-2555
Reviewed-by: Sarah Smith
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When a pixmap's contents change in QVGPixmapData, only recreate
the VGImage in the GPU if the size is different than before.
This should help reduce GPU memory fragmentation.
Task-number: QT-2504
Reviewed-by: Sarah Smith
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Custom graphics systems, may want to inherit from QVGPixmapData to
implement alternative pixmap management strategies. We make toVGImage()
overridable and the data members protected to support this.
Reviewed-by: Sarah Smith
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QPixmap::copy() now returns a pixmap with the same pixmap backend.
Reviewed-by: Gunnar Sletta
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We need a way to support converion to and from multiple native pixmap
types from multiple pixmap backends. Instead of adding more virtual
functions to QPixmapData, make the existing one more generic but pass
an opaque pointer and a type and do some internal casting.
Currently this function is Symbian only, but could easily be extended
to work on other platforms.
Reviewed-by: Aleksandar Babic
Reviewed-by: Jani Hautakangas
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This enables us to convert from and to new Symbian type of
graphics resource, namely SgImage. This only supported with
the OpenVG graphics system.
On other graphics systems this will return null QPixmap.
Conflicts:
src/corelib/global/qglobal.h
src/gui/image/qpixmap.h
src/gui/image/qpixmap_s60.cpp
Reviewed-by: Jason Barron
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Reviewed-by: Trust Me
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Reviewed-by: Trust Me
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Conflicts:
examples/opengl/samplebuffers/glwidget.cpp
src/corelib/io/qfsfileengine_unix.cpp
src/corelib/kernel/qobject.cpp
src/corelib/tools/qsharedpointer.cpp
src/gui/gui.pro
tests/auto/qhttp/tst_qhttp.cpp
tests/auto/qkeyevent/tst_qkeyevent.cpp
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Reviewed-by: Trust Me
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This header is included by the VG graphics system plugin and since that
exists in a different module, the header inclusion bug rears its ugly
head again and we need to workaround it by making it a system include.
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This change also moves the EGL support classes from QtOpenGL to QtGui
so they can be shared between OpenGL and OpenVG.
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