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Task-number: QT-2026
Reviewed-by: Jason Barron
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QRegion::numRects() is marked obsolete.
Removed all usage of the old function inside Qt and test-cases.
Reviewed-by: Andreas Aardal Hanssen
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Reviewed-by: Sarah Smith
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The drawCursorPixmap() function is more efficient and can render
the QImage form of the QPixmap directly if necessary.
Reviewed-by: trustme
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Task-number: QT-2322
Reviewed-by: Sarah Smith
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This fixes an "off by 1" bug in screen compositing with OpenVG
that left lines all over the background when windows were moved.
Task-number: QT-2322
Reviewed-by: Sarah Smith
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Previously, the drop shadow was colorizing the incoming
image and then blurring the colorized version. This change
first blurs the image to an alpha-only VGImage and then uses
that VGImage as a stencil to draw the drop shadow color.
This way, there is only 1 filter step and a draw instead of
2 filter steps and a draw. The result is to make the performance
of the drop shadow filter almost identical to the blur filter.
Reviewed-by: trustme
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Task-number: QT-2016
Reviewed-by: trustme
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If the scissor is being used to clip instead of the mask, use the
bounding rectangle of the clip path if it cannot be handled as a
simple rectangle.
Reviewed-by: trustme
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Best performance will be acheived with OpaqueHint and drawing
the full pixmap rather than sub-regions.
Reviewed-by: trustme
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The QPF implementation of alphaMapForGlyph() was returning
color values of RGBA = (a, a, a, 255) instead of (0, 0, 0, a),
which was inconsistent with all the other font engines.
This inconsistency caused some QPF-specific workarounds in the
OpenGL and OpenVG paint engines. This change removes the workarounds
and makes QPF generate the right colors from the start. Paint
engines that ignore the color table or which don't use the
alphaMapForGlyph() function (e.g. raster) are not affected.
Reviewed-by: Paul
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The multitouch/dials example was displaying rendering artifacts
on the dials in the default style. This was due to incorrect
VGPath construction when sizeof(qreal) == sizeof(VGfloat).
It was adding two VG_CUBIC_TO_ABS elements per cubic instead of one.
Task-number: QT-2035
Reviewed-by: Sarah Smith
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Reviewed-by: trustme
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Previously rounded rectangles were converted into a QVectorPath
and then a VGPath. This change creates the VGPath directly without
an intermediate step and was made possible by change dd3e4308.
Reviewed-by: trustme
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Reviewed-by: trustme
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Engine-specific pixmap filters were being created, used, and destroyed
every time draw() was called on QPixmapColorizeFilter, QPixmapBlurFilter,
and so on. This had a heavy performance penalty and made it difficult
for the GL paint engine to cache shaders from one request to the next.
A generic filter can request an engine-specific filter that matches its
parameters. The engine can either create a new one or return a previously
allocated filter object.
Ownership of engine-specific pixmap filter objects is moved to the
paint engine itself.
Reviewed-by: Andrew den Exter
Reviewed-by: Michael Brasser
Reviewed-by: Michael Goddard
Reviewed-by: Sarah Smith
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Reviewed-by: Trust Me
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Reviewed-by: Trust Me
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Previously we were using QPaintEngine::syncState() which is not ideal
naming-wise, since it actually prepares for native painting instead of
syncing the painter's state to native state.
Reviewed-by: Trond
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TexturePattern brushes were sometimes turning all black with OpenVG.
This was due to the vgDestroyImage() destroying the cached VGImage
in the QVGPixmapData. We only need to use vgDestroyImage() if the
QPixmap is not backed up by a QVGPixmapData (bitmaps and pixmaps
from other paint engines).
Reviewed-by: Sarah Smith
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Reviewed-by: Sarah Smith
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Reviewed-by: Trust Me
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If the QPainterPath contains a structure that looks like a simple
rectangle, then use the faster clip(QRect) function instead of a
full VGPath-based render call.
Task-number: QT-64
Reviewed-by: trustme
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This change should improve performance of single-rectangle clip regions
by avoiding the overhead of creating and intersecting QRegion objects.
Task-number: QT-64
Reviewed-by: trustme
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"Special case: if the intersection of the system clip and the region
is a single rectangle, then use the scissor for clipping." It was
doing the intersection but then didn't use the intersection to test
for the single-rectangle case.
Task-number: QT-64
Reviewed-by: trustme
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Reviewed-by: trustme
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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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