a9f68d9d9a
Since SkiaSalBitmap is required to support bitmap formats that Skia itself doesn't support (1bpp, 4bpp, 24bpp,etc.), it needs to store its own copy of the bitmap data and convert to SkImage for use. With huge images this can lead to large duplicated memory usage. Since the code can actually drop the buffer and create it if needed (which it normally is not), just drop large buffers after converting to SkImage. Ideally SalBitmap should be able to say which bitmap formats it supports and VCL code should oblige, which would allow reusing the same data. Change-Id: I98af62a51dde5d738cc8afcdd2fcdc25ff89952f Reviewed-on: https://gerrit.libreoffice.org/c/core/+/99476 Tested-by: Jenkins Reviewed-by: Luboš Luňák <l.lunak@collabora.com>
60 lines
2.5 KiB
Text
60 lines
2.5 KiB
Text
Environment variables in VCL:
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General
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-------
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SAL_USE_VCLPLUGIN - use a VCL plugin
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SAL_RTL_ENABLED - Enable RTL UI
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SAL_NO_NWF - disable native widgets
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SAL_FORCEDPI - force a specific DPI (gtk3 & qt5/kf5 plugins only)
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SAL_FORCE_HC - force high-contrast mode
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SAL_NO_FONT_LOOKUP - disable font search and fallback and always use a hard-coded font name (for some unit tests)
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LO_COLLECT_UIINFO - enable the uitesting logging, value is expected to be a relative file name that
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will be used to write the log under instdir/uitest/.
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VCL_DOUBLEBUFFERING_AVOID_PAINT - don't paint the buffer, useful to see where we do direct painting
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VCL_DOUBLEBUFFERING_FORCE_ENABLE - enable double buffered painting
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VCL_DOUBLEBUFFERING_ENABLE - enable a safe subset of double buffered painting (currently in Writer, not in any other applications)
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VCL_DEBUG_DISABLE_PDFCOMPRESSION - disable compression in the PDF writer
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Gtk+
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----
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VCL_GTK3_PAINTDEBUG - in debug builds, if set to 1 then holding down shift+0 forces a redraw event, shift+1 repaints everything, and
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shift+2 dumps cairo frames to pngs as /tmp/frame<n>.png
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GDK_SCALE=2 - for HiDPI scaling (just supports integers)
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Bitmap
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------
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VCL_NO_THREAD_SCALE - disable threaded bitmap scale
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VCL_NO_THREAD_IMPORT - disable threaded bitmap import
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EMF_PLUS_DISABLE - use EMF rendering and ignore EMF+ specifics
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OpenGL
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------
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SAL_FORCEGL - force enable OpenGL
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SAL_GL_NO_SWAP - disable buffer swapping if set (should show nothing)
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SAL_GL_SLEEP_ON_SWAP - sleep for half a second on each swap-buffers.
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SAL_DISABLE_WATCHDOG - don't start the thread that watches for broken GL/Vulkan/OpenCL drivers
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SAL_DISABLE_GLYPH_CACHING - don't render glyphs through OpenGL textures or Skia surfaces
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Skia
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----
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SAL_DISABLESKIA=1 - force disabled Skia
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SAL_ENABLESKIA=1 - enable Skia, unless denylisted (and if the VCL backend supports Skia)
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SAL_FORCESKIA=1 - force using Skia, even if denylisted
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SAL_SKIA=raster|vulkan - select Skia's drawing method, by default Vulkan is used
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SAL_DISABLE_SKIA_CACHE=1 - disable caching of complex images
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SAL_SKIA_KEEP_BITMAP_BUFFER=1 - SkiaSalBitmap will keep its bitmap buffer even after storing in SkImage
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OpenGL,Skia
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-----------
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SAL_WITHOUT_WIDGET_CACHE - disable LRU caching of native widget textures
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Qt
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-----
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QT_SCALE_FACTOR=2 - for HiDPI testing (also supports float)
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SAL_VCL_QT5_NO_FONTCONFIG - ignore fontconfig provided font substitutions
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SAL_VCL_QT5_NO_NATIVE - disable QStyle'd controls
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SAL_VCL_QT5_USE_CAIRO - use cairo for text rendering and fonts (default for kf5, but not qt5)
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