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Force GLES 2.0 on Android 4.2 devices reporting 3.0 

Android does not support GLES 3.0 before 4.3 (API level 18). However some
4.2.2 devices are reported to return 3.0 in the version string and therefore
choose the GLES 3+ code paths in Qt. This blows up sooner or later because
the 3.0 specific functions are apparently not present at all.

Task-number: QTBUG-46831
Change-Id: Ic3eeb7c55829cf36c6d142c01ff8a1e18e9ecc1a
Reviewed-by: Kati Kankaanpaa <kati.kankaanpaa@theqtcompany.com>
Reviewed-by: Christian Stromme <christian.stromme@theqtcompany.com>
bb10
Laszlo Agocs 2015-06-29 14:26:07 +02:00
parent c86ca601ed
commit 3f531512e8
1 changed files with 12 additions and 0 deletions
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12
src/platformsupport/eglconvenience/qeglplatformcontext.cpp
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@ -39,6 +39,10 @@
#include <QtPlatformHeaders/QEGLNativeContext>
#include <QDebug>
#ifdef Q_OS_ANDROID
#include <QtCore/private/qjnihelpers_p.h>
#endif
QT_BEGIN_NAMESPACE
/*!
@ -294,6 +298,14 @@ void QEGLPlatformContext::updateFormatFromGL()
QByteArray version = QByteArray(reinterpret_cast<const char *>(s));
int major, minor;
if (QPlatformOpenGLContext::parseOpenGLVersion(version, major, minor)) {
#ifdef Q_OS_ANDROID
// Some Android 4.2.2 devices report OpenGL ES 3.0 without the functions being available.
static int apiLevel = QtAndroidPrivate::androidSdkVersion();
if (apiLevel <= 17 && major >= 3) {
major = 2;
minor = 0;
}
#endif
m_format.setMajorVersion(major);
m_format.setMinorVersion(minor);
}