From cbf649ff92e7d3416cb9d03609648f96efdf76dd Mon Sep 17 00:00:00 2001 From: Ricardo Salveti de Araujo Date: Mon, 17 Mar 2014 19:43:41 -0300 Subject: [PATCH] Add workaround for GL on Android emulator On the Android Emulator, the shaders will be compiled by a desktop GL driver, since the GL driver in the emulator is just a thin wrapper. The GL driver does not necessarily support the precision qualifiers, which can cause applications to break. We detect this at runtime in the platform plugin and set a workaround flag to Upstream (9eeb1bd) just enabled the workaround when the android backend is used, which is not true in our case (traditional desktop). As a consequence, we also need a similar check in order to have a functional Ubuntu Touch emulator. Signed-off-by: Ricardo Salveti de Araujo --- src/gui/kernel/qopenglcontext.cpp | 5 +++++ 1 file changed, 5 insertions(+) --- qtbase/src/gui/kernel/qopenglcontext.cpp +++ qtbase/src/gui/kernel/qopenglcontext.cpp @@ -815,6 +815,11 @@ d->shareGroup->d_func()->deletePendingResources(this); + const char *rendererString = reinterpret_cast(glGetString(GL_RENDERER)); + if (rendererString != 0 && qstrncmp(rendererString, "Android Emulator", 16) == 0) { + QOpenGLContextPrivate *ctx_d = QOpenGLContextPrivate::get(this); + ctx_d->workaround_missingPrecisionQualifiers = true; + } #ifndef QT_NO_DEBUG QOpenGLContextPrivate::toggleMakeCurrentTracker(this, true); #endif