path: root/src/gui/opengl/qopenglprogrambinarycache_p.h
Commit message (Collapse)AuthorAgeFilesLines
* Get rid of QT_OPENGL_ES*Eskil Abrahamsen Blomfeldt2020-04-171-1/+1
| | | | | | | | | | | The QT_OPENGL_ES* macros are leftovers from an earlier, ad hoc configuration system, which has since been replaced by QT_CONFIG. To clean things up in Qt 6, we use the new way instead. Task-number: QTBUG-83467 Change-Id: I578dc7695bff9d5ee303b22e44f60fee22fe0c28 Reviewed-by: Lars Knoll <>
* Move QOpenGLShaderProgram from QtGui to QtOpenGLJohan Klokkhammer Helsing2020-02-201-4/+7
| | | | | | Task-number: QTBUG-74409 Change-Id: I20dfafc0c9bf8e2b68b03e171d70c2cb4ad2bfaf Reviewed-by: Laszlo Agocs <>
* Share and enable shader disk cache in QRhi OpenGL backendLaszlo Agocs2019-09-301-4/+39
| | | | | | | | | | | | | | | The expectation for it is to function identically to what we get with QOpenGLShaderProgram. (same environment variables, same logging categories, etc.). QOpenGLProgramBinaryCache is now shared between the QOpenGL convenience classes (like QOpenGLShaderProgram) and QRhi. To achieve more modularity and to prepare for QOpenGLShaderProgram and friends moving out of QtGui, this class cannot depend on QOpenGLShader* anymore. This involves adding some minor conversions between QRhi and QOpenGL enums for example. Change-Id: I2f4664e074823ea536281aea8006a6db159a7381 Reviewed-by: Christian Strømme <>
* Move cache key calculation to QOpenGLProgramBinaryCacheLaszlo Agocs2019-09-261-0/+1
| | | | | | | | This class will likely be used by the OpenGL backend of QRhi as well. Therefore, we need to make it more self-contained and independent. Change-Id: If046ed41e25c70cc9abb45219b451f9179feaa1c Reviewed-by: Christian Strømme <>
* Guard with a mutex in QOpenGLProgramBinaryCache where neededLaszlo Agocs2019-08-171-0/+2
| | | | | | | | | | | While there is likely no example of it in Qt itself, applications can use QOpenGLShaderProgram instances on different threads. These instances have nothing to do with each other but they do share a global cache object. This becomes problematic without proper synchronization. Change-Id: I80faf73f34af7e67349eee916bb3f216e22c07fd Fixes: QTBUG-77469 Reviewed-by: Christian Strømme <>
* Enable shader cache for ES2 when GL_OES_get_program_binary is presentMichael Brasser2019-07-251-0/+6
| | | | | Change-Id: I4fb71471a7dd22441def1eb837857d245c3e3c5a Reviewed-by: Laszlo Agocs <>
* qopenglprogrambinarycache_p.h: Add "We mean it" commentFriedemann Kleint2016-11-251-0/+11
| | | | | | | | | | | Fix QtGui: WARNING: qtbase/src/gui/opengl/qopenglprogrambinarycache_p.h does not have the "We mean it." warning Amends change 85f868e73e4cf9dffe27b737f8dc3f5bb626ed04. Change-Id: Id2e8c3e7ac4fa732c0a3d99faab91f08121fba96 Task-number: QTBUG-55496 Reviewed-by: Laszlo Agocs <>
* Add an OpenGL program binary disk cacheLaszlo Agocs2016-11-241-0/+89
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 <> Reviewed-by: Andy Nichols <>