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-rw-r--r--src/gui/kernel/qopenglcontext.cpp34
1 files changed, 34 insertions, 0 deletions
diff --git a/src/gui/kernel/qopenglcontext.cpp b/src/gui/kernel/qopenglcontext.cpp
index 8aea593bf0..3dc06ae60e 100644
--- a/src/gui/kernel/qopenglcontext.cpp
+++ b/src/gui/kernel/qopenglcontext.cpp
@@ -982,6 +982,40 @@ bool QOpenGLContext::makeCurrent(QSurface *surface)
QOpenGLContext *previous = QOpenGLContextPrivate::setCurrentContext(this);
if (d->platformGLContext->makeCurrent(surface->surfaceHandle())) {
+ static bool needsWorkaroundSet = false;
+ static bool needsWorkaround = false;
+
+ if (!needsWorkaroundSet) {
+ QByteArray env;
+#ifdef Q_OS_ANDROID
+ env = qgetenv(QByteArrayLiteral("QT_ANDROID_DISABLE_GLYPH_CACHE_WORKAROUND"));
+ needsWorkaround = env.isEmpty() || env == QByteArrayLiteral("0") || env == QByteArrayLiteral("false");
+#endif
+ env = qgetenv(QByteArrayLiteral("QT_ENABLE_GLYPH_CACHE_WORKAROUND"));
+ if (env == QByteArrayLiteral("1") || env == QByteArrayLiteral("true"))
+ needsWorkaround = true;
+
+ if (!needsWorkaround) {
+ const char *rendererString = reinterpret_cast<const char *>(functions()->glGetString(GL_RENDERER));
+ if (rendererString)
+ needsWorkaround =
+ qstrncmp(rendererString, "Mali-4xx", 6) == 0 // Mali-400, Mali-450
+ || qstrncmp(rendererString, "Adreno (TM) 2xx", 13) == 0 // Adreno 200, 203, 205
+ || qstrncmp(rendererString, "Adreno 2xx", 8) == 0 // Same as above but without the '(TM)'
+ || qstrncmp(rendererString, "Adreno (TM) 30x", 14) == 0 // Adreno 302, 305
+ || qstrncmp(rendererString, "Adreno 30x", 9) == 0 // Same as above but without the '(TM)'
+ || qstrncmp(rendererString, "Adreno (TM) 4xx", 13) == 0 // Adreno 405, 418, 420, 430
+ || qstrncmp(rendererString, "Adreno 4xx", 8) == 0 // Same as above but without the '(TM)'
+ || qstrcmp(rendererString, "GC800 core") == 0
+ || qstrcmp(rendererString, "GC1000 core") == 0
+ || qstrcmp(rendererString, "Immersion.16") == 0;
+ }
+ needsWorkaroundSet = true;
+ }
+
+ if (needsWorkaround)
+ d->workaround_brokenFBOReadBack = true;
+
d->surface = surface;
d->shareGroup->d_func()->deletePendingResources(this);