AuroraMiddleware/qt5base-lts
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Disable RGB64 backend for ARGB32 when it will be very slow

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Fixes a speed regression on ARGB32 painting on low end hardware
introduced when it was switched to using the RGB64 raster routines.
It turns out several of our embedded QPA targets use ARGB32 as native
format.

Task-number: QTBUG-69724
Change-Id: I6d7993c12da46a85b8354eb905930dae9602b5e6
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
This commit is contained in:
Allan Sandfeld Jensen 2018-08-02 18:15:33 +02:00
parent 6af8b5e791
commit 1511bfef52
1 changed files with 2 additions and 0 deletions
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2
src/gui/painting/qdrawhelper.cpp
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@ -5322,8 +5322,10 @@ void qBlendTexture(int count, const QSpan *spans, void *userData)
case QImage::Format_RGB16:
proc = processTextureSpansRGB16[blendType];
break;
#if defined(__SSE2__) || defined(__ARM_NEON__) || (Q_PROCESSOR_WORDSIZE == 8)
case QImage::Format_ARGB32:
case QImage::Format_RGBA8888:
#endif
case QImage::Format_BGR30:
case QImage::Format_A2BGR30_Premultiplied:
case QImage::Format_RGB30: