| Commit message (Collapse) | Author | Age | Files | Lines |
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According to reports Intel on Windows gets confused when feeding
program binaries retrieved from x86 and x64 builds into each other.
Task-number: QTBUG-64697
Change-Id: Ia7748f532ad06942a92c6fbfc4c9d1ad16bc785a
Reviewed-by: Andy Shaw <andy.shaw@qt.io>
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>
Reviewed-by: Andy Nichols <andy.nichols@qt.io>
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Fixes the rest of the places we use the pattern of emptying the OpenGL
error stack to be able to handle GL_CONTEXT_LOST, and adds a note about
it in the documentation.
Change-Id: I7eb97dbca45f39295b832d44937023b538b19947
Reviewed-by: David Edmundson <davidedmundson@kde.org>
Reviewed-by: Laszlo Agocs <laszlo.agocs@qt.io>
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Unnamed namespaces and static are great tools. Use them.
Change-Id: Ie01831ddac5446fdbdeefffd15468b3acb3ced79
Reviewed-by: Kai Koehne <kai.koehne@qt.io>
Reviewed-by: André Hartmann <aha_1980@gmx.de>
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
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QOpenGLProgramBinaryCache::setProgramBinary() should check
GL_LINK_STATUS after glProgramBinary(), but doesn't.
In practice, this means that SDDM is a white screen, and KDE is just
a gray task bar.
So far, Qt tries to check this using its internal ::link() function.
But in case the cached binary fails to load, Qt currently attempts to
link the inexistent program, resulting in a zero-length, fixed
pipeline shader.
Checking this already in ::setProgramBinary() makes the call to
::link() superfluous, so we remove that as well.
Done-with: Max Staudt <mstaudt@suse.com>
Done-with: Michal Srb <msrb@suse.com>
Done-with: Fabian Vogt <fvogt@suse.de>
Task-number: QTBUG-66420
Change-Id: Iabb51d0eb2c0c16bde696efff623e57d15f28d82
Reviewed-by: Jesus Fernandez <Jesus.Fernandez@qt.io>
Reviewed-by: Laszlo Agocs <laszlo.agocs@qt.io>
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Make INTEGRITY happy.
While we are at it, clean up the way the data is composed and accessed
and avoid unaligned uint32* accesses on our side as well.
Task-number: QTBUG-58183
Change-Id: I357be4b6844e5e8b8d27261a3676e135faea6250
Reviewed-by: Kimmo Ollila <kimmo.ollila@theqtcompany.com>
Reviewed-by: Andy Nichols <andy.nichols@qt.io>
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Task-number: QTBUG-55496
Change-Id: Ie9bd4390e7bb7bf22dbe597a6a01fecec7a6b404
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
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Introduce a glProgramBinary-based disk cache in QOpenGLShaderProgram.
By switching the typical
program->addShaderFromSourceCode(QOpenGLShader::Vertex, ...)
program->addShaderFromSourceCode(QOpenGLShader::Fragment, ...)
invocations to
program->addCacheableShaderFromSourceCode(QOpenGLShader::Vertex, ...)
program->addCacheableShaderFromSourceCode(QOpenGLShader::Fragment, ...)
the compilation may be skipped via gl(Get)ProgramBinary and a disk
cache, when supported. Such QOpenGLShaderProgram instances will have
no QOpenGLShader instances attached. Instead, the entire program
binary (which is driver-specific) is loaded as-is.
Support means OpenGL ES 3.0 or the presence of
GL_ARB_get_program_binary, in combination with >= 1 supported binary
formats. Note that some drivers claim program binary support but
expose no formats. This amounts to no support in practice.
When support is not present, calling the new functions is equivalent
to the non-cacheable variants. If the OpenGL driver changes (vendor,
renderer, version strings), recompilation and storage of the new,
potentially incompatible binary program will happen transparently.
The cache can always be disabled by setting
QT_DISABLE_SHADER_DISK_CACHE=1 or the new application attribute
Qt::AA_DisableShaderDiskCache.
Location-wise the primary choice is the shared cache
(GenericCacheLocation). If this is not available or is not writable,
the per-process one (CacheLocation) is used instead.
In addition to the new public APIs in QOpenGLShaderProgram, the main
shader users in QtGui are migrated as well. (OpenGL paint engine,
glyph cache, blitter, eglfs mouse cursor). This means that any
application using QPainter on OpenGL or widgets with eglfs will
benefit from the improved startup times. Qt Quick will follow suit as
well.
[ChangeLog][QtGui][OpenGL] QOpenGLShaderProgram offers a built-in
program binary disk cache for systems with OpenGL ES 3.x or
GL_ARB_get_program_binary. This can lead to significant increases in
performance when it comes to application startup times for
example. Usage is opt-in for direct C++ users of the class, however
Qt's own main users of shaders, including Qt Quick and QPainter's
OpenGL engine, are migrated to use the new, cache-enabled APIs.
Opting out on application level is always possible via
Qt::AA_DisableShaderDiskCache.
Task-number: QTBUG-55496
Change-Id: I556f053d258bfa6887b1d5238c9f6396914c5421
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
Reviewed-by: Andy Nichols <andy.nichols@qt.io>
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