QGLTextureCache has a read write locker to protect texture lookups.
However, even calling QCache::object() might modify the cache, causing
race conditions, since it modifies the priority order of the objects in
the cache. Therefore, we need to protect it with a QWriteLocker instead
of a QReadLocker.
Task-number: QTBUG-22560
Change-Id: I46fffc624ace27e25fb100f865e1df0a19b9093d
Reviewed-by: Gabriel de Dietrich <gabriel.dedietrich@digia.com>
QGLTexture* QGLTextureCache::getTexture(QGLContext *ctx, qint64 key)
{
- QReadLocker locker(&m_lock);
+ QWriteLocker locker(&m_lock);
const QGLTextureCacheKey cacheKey = {key, QGLContextPrivate::contextGroup(ctx)};
return m_cache.object(cacheKey);
}