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The GL2 paint engine was rewritten to use GL to transform glyphs when
copying them from the glyph cache instead of keeping a separate cache
for different transformations. Since the glyph positions in QStaticText
already include the transformation, we need to run the gl calls with
an identity matrix, otherwise the position of the glyphs will be
transformed twice. The output from drawText() and drawStaticText()
will for the same reason look different for the two different engines.
The option here is to detect the problem when drawing to the opengl2
engine, and then recalculating the glyph positions for the QStaticText.
This will of course create a big overhead when regularly switching
between different paint devices, but it might make sense to optimize
for one QStaticText per paint device. For the time being I haven't
done that, though, since that change would require a bigger hack, so
it warrants deeper consideration.
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Turns QStaticText into private API in preparation for Qt 4.6.x. The
related functions in QPainter are marked as internal in the docs. There
are already internal functions in QPainter, so this seemed like a
reasonable solution. Since the functions require QStaticText they will
not be accessible to anyone who does not include private API.
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The default GL header on Windows is GL 1.1, so the 1.5 extensions are
not defined. To work around this, we define the macros when needed.
The macros are required for QStaticText's OpenGL backend.
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These belong to an OpenGL extension which is not in use.
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There's a big improvement to be seen in the OpenGL engine by caching
the vertex data for the QStaticText in VBOs. In order to have the
buffers properly disposed, I've implemented a userdata concept for
QStaticTextItem. By default, the optimizations will be turned off, and
can be turned on by using the useBackendOptimizations flag.
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Optimization for drawStaticText()
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This function is the main performance hog when using QStaticText with
the OpenGL engine, so I've improved on it a little by removing the
conversion from (qreal,qreal) -> QPointF -> QGLPoint. Since the function
is called so often, it has an impact on drawStaticText().
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Some errors introduced by merges.
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Update the code to compile with merged changes.
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The OpenGL and OpenGL2 engines now have support for static text, as
well as the QEmulationPaintEngine.
Also contains an optimization: Instead of passing both the position and
glyph positions to drawStaticTextItem() we add the position into the
glyph position and update it only when it changes. Otherwise we would
have to do this work in all engines for every call. This means we have
to cache the position in QStaticTextPrivate as well, but it seems like
a small price to pay, since it's a per-text overhead and only 16 bytes.
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1. Support transformations on the painter in drawStaticText().
Transforming the painter will cause the text layout to be recalculated,
except for translations, which are handled by shifting the position of
the text items.
2. Make const length arrays of the internal data in QStaticTextItem in
order to minimize the memory consumption.
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By caching the results of getGlyphPositions() we can make a code path
in the critical paint engines which is optimal both in space and speed.
The engines where speed is of less importance (pdf engine etc.) which
may need more information, we choose the slower code path of drawText()
which lays out the text again. We should have optimal paths in raster,
vg and GL2 paint engines. The others are less important. Memory
consumption of static text is now 14 bytes per glyph, 8 bytes per item
and a static overhead of 40 bytes per QStaticText object.
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Conflicts:
qmake/Makefile.unix
qmake/generators/symbian/symmake.cpp
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Conflicts:
src/corelib/codecs/qtextcodec.h
tests/auto/gestures/tst_gestures.cpp
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Reviewed-by: Trust Me
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master-integration
* 'master' of scm.dev.nokia.troll.no:qt/oslo-staging-1: (28 commits)
Optimized QLocale to access system locale on demand.
Fix QRegion under Mac OS X.
update according to Thiago's comments.
Changes: add functionality for dbus auto start to qt
Add license header to this file
readdir64 is not available on HP-UX
Fix bug in QDirPrivate::setPath, affecting QDir::cd, cdUp and setPath
qdoc3: Completed handling of the new \pagekeywords command.
Wrong cursor shown by the parent window after setOverrideCursor().
Fixed Mac OS X compile time error by using GLint for temp.
qdoc3: Added curly braces in switch statement for braindead compiler.
qdoc: Added a build rule for the documentation - disabled by default.
Doc: Added the qdoc manual to the repository for future maintenance.
qdoc3: Fixed bug in creation of qt.pageindex.
qdoc3: Added capability to create qt.pageindex.
Incorrect property setter generated by dumpcpp for Microsoft Word 2007.
Cocoa: Implement our own NSApplication subclass
Cocoa: Menu in menubar stays highlighted
qdoc: Made a temporary fix for comment highlighting.
Doc: Tidied up the class layout and removed an unnecessary image.
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master-integration
* 'master' of scm.dev.nokia.troll.no:qt/oslo-staging-1: (27 commits)
Fix QRegion under Mac OS X.
update according to Thiago's comments.
Changes: add functionality for dbus auto start to qt
Add license header to this file
readdir64 is not available on HP-UX
Fix bug in QDirPrivate::setPath, affecting QDir::cd, cdUp and setPath
qdoc3: Completed handling of the new \pagekeywords command.
Wrong cursor shown by the parent window after setOverrideCursor().
Fixed Mac OS X compile time error by using GLint for temp.
qdoc3: Added curly braces in switch statement for braindead compiler.
qdoc: Added a build rule for the documentation - disabled by default.
Doc: Added the qdoc manual to the repository for future maintenance.
qdoc3: Fixed bug in creation of qt.pageindex.
qdoc3: Added capability to create qt.pageindex.
Incorrect property setter generated by dumpcpp for Microsoft Word 2007.
Cocoa: Implement our own NSApplication subclass
Cocoa: Menu in menubar stays highlighted
qdoc: Made a temporary fix for comment highlighting.
Doc: Tidied up the class layout and removed an unnecessary image.
Doc/qdoc: Use Chinese titles; canonicalize titles with non-ASCII chars.
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master-integration
* 'master' of scm.dev.nokia.troll.no:qt/oslo-staging-1: (21 commits)
Fix bug in QDirPrivate::setPath, affecting QDir::cd, cdUp and setPath
Wrong cursor shown by the parent window after setOverrideCursor().
Fixed Mac OS X compile time error by using GLint for temp.
qdoc3: Added curly braces in switch statement for braindead compiler.
qdoc: Added a build rule for the documentation - disabled by default.
Doc: Added the qdoc manual to the repository for future maintenance.
qdoc3: Fixed bug in creation of qt.pageindex.
qdoc3: Added capability to create qt.pageindex.
Incorrect property setter generated by dumpcpp for Microsoft Word 2007.
Cocoa: Implement our own NSApplication subclass
Cocoa: Menu in menubar stays highlighted
qdoc: Made a temporary fix for comment highlighting.
Doc: Tidied up the class layout and removed an unnecessary image.
Doc/qdoc: Use Chinese titles; canonicalize titles with non-ASCII chars.
Doc/qdoc: Converted encoding of ISO-8859-1 docs to UTF-8. Output UTF-8.
qdoc: Removed debugging code.
Doc: Updated the configuration file for the Simplified Chinese docs.
qdoc: Standardized encoding names and updated the Chinese config files.
Doc: Added Simplified Chinese documents and build rules for them.
qdoc: Added support for different source and output character encodings.
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The GLint is then returned as an int, which is ok.
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Conflicts:
mkspecs/common/symbian/symbian.conf
src/opengl/gl2paintengineex/qpaintengineex_opengl2.cpp
tools/assistant/tools/assistant/helpviewer.cpp
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Conflicts:
tests/auto/qlineedit/tst_qlineedit.cpp
tests/benchmarks/benchmarks.pro
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Subpixel antialiased text does not look good on translucent
surfaces, so turn it off if the surface the text is rendered on
has an alpha channel. This makes change
eb84acd899aee992f5631ee0b9c0d992c8fbbd5a redundant.
Task-number: QTBUG-7190
Reviewed-by: Gunnar
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Reviewed-by: Gunnar
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Conflicts:
src/opengl/qglshaderprogram.cpp
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Reviewed-by: Trond
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Conflicts:
src/gui/kernel/qcocoapanel_mac.mm
src/gui/kernel/qcocoasharedwindowmethods_mac_p.h
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master-integration
* 'master' of scm.dev.nokia.troll.no:qt/oslo-staging-1:
doc: Fixed some qdoc warnings.
doc: Fixed some qdoc warnings.
doc: Fixed some qdoc warnings.
doc: Fixed some qdoc warnings.
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master-integration
* 'master' of scm.dev.nokia.troll.no:qt/oslo-staging-2:
Add QMacCompatGLenum overrides for new QGLShaderProgram functions
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Task-number: QTBUG-7391
Reviewed-by: Sarah Smith
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master-integration
* 'master' of scm.dev.nokia.troll.no:qt/oslo-staging-1:
Use a shared QScriptEngine for debugger console command scripts
Fix QtScript debugger hang/crash issue with updating locals model
doc: Fixed some qdoc warnings.
Always activate popup windows on show
doc: Fixed some qdoc warnings.
Add the QMAKE_FILE_EXT variable to extra compilers generation.
Cocoa: Tool Windows steal focus from the main window
qdoc3: Removed a debug output.
Update QTestLib documentation with chart use case.
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Reviewed-by: Olivier
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GLfloat[2][2] & GLfloat[3][3] uniform setters.
Generic overrides to setAttributeArray() for setting the component
type to something other than GL_FLOAT.
setAttributeBuffer() for specifiying offsets within vertex buffers.
Task-number: QTBUG-7391
Reviewed-By: Sarah Smith
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Task-number: QTBUG-7683
Reviewed-by: Tom Cooksey
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master-integration
* 'master' of scm.dev.nokia.troll.no:qt/oslo-staging-2:
Placate pedantic compiler warning modes on QGLBuffer
Promote QPixmap::convertFromImage() to public API from Qt3Support
Add the QGLBuffer class to Qt 4.7 for VBO's
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Reviewed-by: Sarah Smith
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Reviewed-by: Sarah Smith
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Conflicts:
src/gui/kernel/qeventdispatcher_mac.mm
src/gui/kernel/qt_cocoa_helpers_mac.mm
src/gui/widgets/qmenu_mac.mm
tests/auto/qgraphicswidget/tst_qgraphicswidget.cpp
tools/assistant/tools/assistant/centralwidget.cpp
tools/linguist/lupdate/main.cpp
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Reviewed-by: Trond
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Conflicts:
tools/assistant/lib/qhelpsearchquerywidget.cpp
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The painter path caching needed to be updated after an
optimisation (45fedfeb) in the 4.6 branch was merged into the
master branch.
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