D14090: [libbreezecommon] Fix build when qreal is float

[Vlad Zagorodniy]

zzag created this revision.
zzag added a reviewer: Plasma.
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REVISION SUMMARY
    06:47:17 CMakeFiles/Makefile2:118: recipe for target 'libbreezecommon/CMakeFiles/breezecommon4.dir/all' failed
    06:47:17 /workspace/build/libbreezecommon/breezeboxshadowhelper.cpp: In function ‘void Breeze::BoxShadowHelper::blurAlphaNaive(QImage&, int)’:
    06:47:17 /workspace/build/libbreezecommon/breezeboxshadowhelper.cpp:138:56: error: conversion from ‘QVector<double>’ to non-scalar type ‘const QVector<float>’ requested
    06:47:17 const QVector<qreal> kernel = computeGaussianKernel(radius);
    06:47:17 ~~~~~~~~~~~~~~~~~~~~~^~~~~~~~
    06:47:17 In file included from /usr/include/qt4/QtGui/qpolygon.h:45:0,
    06:47:17 from /usr/include/qt4/QtGui/qmatrix.h:45,
    06:47:17 from /usr/include/qt4/QtGui/qtransform.h:44,
    06:47:17 from /usr/include/qt4/QtGui/qimage.h:45,
    06:47:17 from /usr/include/qt4/QtGui/qpixmap.h:50,
    06:47:17 from /usr/include/qt4/QtGui/qpainter.h:49,
    06:47:17 from /usr/include/qt4/QtGui/QPainter:1,
    06:47:17 from /workspace/build/libbreezecommon/breezeboxshadowhelper.h:27,
    06:47:17 from /workspace/build/libbreezecommon/breezeboxshadowhelper.cpp:21:
    06:47:17 /usr/include/qt4/QtCore/qvector.h: In instantiation of ‘int QVector<T>::sizeOfTypedData() [with T = double]’:
    06:47:17 /usr/include/qt4/QtCore/qvector.h:503:49: required from ‘void QVector<T>::realloc(int, int) [with T = double]’
    06:47:17 /usr/include/qt4/QtCore/qvector.h:340:32: required from ‘void QVector<T>::reserve(int) [with T = double]’
    06:47:17 /workspace/build/libbreezecommon/breezeboxshadowhelper.cpp:62:30: required from here
    06:47:17 /usr/include/qt4/QtCore/qvector.h:323:49: warning: cast from ‘QVector<double>*’ to ‘const Data* {aka const QVectorTypedData<double>*}’ increases required alignment of target type [-Wcast-align]
    06:47:17 return reinterpret_cast<const char *>(&(reinterpret_cast<const Data *>(this))->array[1]) - reinterpret_cast<const char *>(this);
    06:47:17 ~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    06:47:17 make[5]: [libbreezecommon/CMakeFiles/breezecommon4.dir/breezeboxshadowhelper.cpp.o] Error 1
    06:47:17 make[4]: [libbreezecommon/CMakeFiles/breezecommon4.dir/all] Error 2

REPOSITORY
  R31 Breeze

BRANCH
  fix-build

REVISION DETAIL
  https://phabricator.kde.org/D14090

AFFECTED FILES
  libbreezecommon/breezeboxshadowhelper.cpp

To: zzag, #plasma
Cc: plasma-devel, ragreen, Pitel, ZrenBot, lesliezhai, ali-mohamed, jensreuterberg, abetts, sebas, apol, mart
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