diff options
author | Allan Sandfeld Jensen <allan.jensen@theqtcompany.com> | 2016-01-06 11:01:39 +0100 |
---|---|---|
committer | Allan Sandfeld Jensen <allan.jensen@theqtcompany.com> | 2016-01-08 19:08:43 +0000 |
commit | 1bcfc3de7586ddb9f5d1b778b97b26ae3dc9584d (patch) | |
tree | 66571c15008a0978c8b2335d668656075a504086 /src/gui | |
parent | c04cf29b78f3f5747c58dd89ca21523e387ee3ac (diff) |
Use backing store formats with alpha
We depend on being able to punch holes in the backing store when
integrating with FBO elements. To do that we need a format with an alpha
channel. This was only working previously because RGB32 didn't mask when
filling or when converting to ARGB32_PM, but other formats didn't.
Also unifies the logic for getting alpha versions of QImage formats.
Task-number: QTBUG-50281
Change-Id: Ied1325f60e2b67d9ea2dfa9701b06fc2231ebfca
Reviewed-by: Laszlo Agocs <laszlo.agocs@theqtcompany.com>
Diffstat (limited to 'src/gui')
-rw-r--r-- | src/gui/image/qimage.cpp | 27 | ||||
-rw-r--r-- | src/gui/image/qimage_p.h | 35 | ||||
-rw-r--r-- | src/gui/image/qpixmap_raster.cpp | 27 |
3 files changed, 38 insertions, 51 deletions
diff --git a/src/gui/image/qimage.cpp b/src/gui/image/qimage.cpp index a992ad6fea..6ec1eecfb1 100644 --- a/src/gui/image/qimage.cpp +++ b/src/gui/image/qimage.cpp @@ -4623,32 +4623,7 @@ QImage QImage::transformed(const QTransform &matrix, Qt::TransformationMode mode if (complex_xform || mode == Qt::SmoothTransformation) { if (d->format < QImage::Format_RGB32 || !hasAlphaChannel()) { - switch(d->format) { - case QImage::Format_RGB16: - target_format = Format_ARGB8565_Premultiplied; - break; - case QImage::Format_RGB555: - target_format = Format_ARGB8555_Premultiplied; - break; - case QImage::Format_RGB666: - target_format = Format_ARGB6666_Premultiplied; - break; - case QImage::Format_RGB444: - target_format = Format_ARGB4444_Premultiplied; - break; - case QImage::Format_RGBX8888: - target_format = Format_RGBA8888_Premultiplied; - break; - case QImage::Format_BGR30: - target_format = Format_A2BGR30_Premultiplied; - break; - case QImage::Format_RGB30: - target_format = Format_A2RGB30_Premultiplied; - break; - default: - target_format = Format_ARGB32_Premultiplied; - break; - } + target_format = qt_alphaVersion(d->format); } } diff --git a/src/gui/image/qimage_p.h b/src/gui/image/qimage_p.h index 3badda0864..f9ad6c0ac0 100644 --- a/src/gui/image/qimage_p.h +++ b/src/gui/image/qimage_p.h @@ -161,10 +161,45 @@ inline int qt_depthForFormat(QImage::Format format) } return depth; } + #if defined(_M_ARM) #pragma optimize("", on) #endif +inline QImage::Format qt_alphaVersion(QImage::Format format) +{ + switch (format) { + case QImage::Format_RGB16: + return QImage::Format_ARGB8565_Premultiplied; + case QImage::Format_RGB555: + return QImage::Format_ARGB8555_Premultiplied; + case QImage::Format_RGB666: + return QImage::Format_ARGB6666_Premultiplied; + case QImage::Format_RGB444: + return QImage::Format_ARGB4444_Premultiplied; + case QImage::Format_RGBX8888: + return QImage::Format_RGBA8888_Premultiplied; + case QImage::Format_BGR30: + return QImage::Format_A2BGR30_Premultiplied; + case QImage::Format_RGB30: + return QImage::Format_A2RGB30_Premultiplied; + default: + break; + } + return QImage::Format_ARGB32_Premultiplied; +} + +inline QImage::Format qt_alphaVersionForPainting(QImage::Format format) +{ + QImage::Format toFormat = qt_alphaVersion(format); +#if defined(__ARM_NEON__) || defined(__SSE2__) + // If we are switching depth anyway and we have optimized ARGB32PM routines, upgrade to that. + if (qt_depthForFormat(format) != qt_depthForFormat(toFormat)) + toFormat = QImage::Format_ARGB32_Premultiplied; +#endif + return toFormat; +} + QT_END_NAMESPACE #endif // QIMAGE_P_H diff --git a/src/gui/image/qpixmap_raster.cpp b/src/gui/image/qpixmap_raster.cpp index a2b84b358e..bbdf77355e 100644 --- a/src/gui/image/qpixmap_raster.cpp +++ b/src/gui/image/qpixmap_raster.cpp @@ -178,20 +178,7 @@ void QRasterPlatformPixmap::fill(const QColor &color) int alpha = color.alpha(); if (alpha != 255) { if (!image.hasAlphaChannel()) { - QImage::Format toFormat; -#if !(defined(__ARM_NEON__) || defined(__SSE2__)) - if (image.format() == QImage::Format_RGB16) - toFormat = QImage::Format_ARGB8565_Premultiplied; - else if (image.format() == QImage::Format_RGB666) - toFormat = QImage::Format_ARGB6666_Premultiplied; - else if (image.format() == QImage::Format_RGB555) - toFormat = QImage::Format_ARGB8555_Premultiplied; - else if (image.format() == QImage::Format_RGB444) - toFormat = QImage::Format_ARGB4444_Premultiplied; - else -#endif - toFormat = QImage::Format_ARGB32_Premultiplied; - + QImage::Format toFormat = qt_alphaVersionForPainting(image.format()); if (!image.isNull() && qt_depthForFormat(image.format()) == qt_depthForFormat(toFormat)) { image.detach(); image.d->format = toFormat; @@ -314,17 +301,7 @@ void QRasterPlatformPixmap::createPixmapForImage(QImage &sourceImage, Qt::ImageC : QImage::Format_RGB32; } else { QImage::Format opaqueFormat = QNativeImage::systemFormat(); - QImage::Format alphaFormat = QImage::Format_ARGB32_Premultiplied; - -#if !defined(__ARM_NEON__) && !defined(__SSE2__) - switch (opaqueFormat) { - case QImage::Format_RGB16: - alphaFormat = QImage::Format_ARGB8565_Premultiplied; - break; - default: // We don't care about the others... - break; - } -#endif + QImage::Format alphaFormat = qt_alphaVersionForPainting(opaqueFormat); if (!sourceImage.hasAlphaChannel()) { format = opaqueFormat; |