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Support to get timing from pagefilp 

Handle the timing from drmEvent when page flip finished.
The information can be used to optimize rendering timing.

Change-Id: I14612ca48a8fea5208aa74949d7543787e860c5f
Reviewed-by: Elvis Lee <kwangwoong.lee@lge.com>
Reviewed-by: Laszlo Agocs <laszlo.agocs@qt.io>
bb10
Elvis Lee 2021-09-29 11:19:11 +09:00
parent 63b8840380
commit 093a62a69a
3 changed files with 14 additions and 3 deletions
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7
src/plugins/platforms/eglfs/deviceintegration/eglfs_kms_support/qeglfskmseventreader.cpp
View File

@ -39,6 +39,7 @@
#include "qeglfskmseventreader_p.h"
#include "qeglfskmsdevice_p.h"
#include "qeglfskmsscreen_p.h"
#include <QSocketNotifier>
#include <QCoreApplication>
#include <QLoggingCategory>
@ -50,12 +51,12 @@ Q_DECLARE_LOGGING_CATEGORY(qLcEglfsKmsDebug)
static void pageFlipHandler(int fd, unsigned int sequence, unsigned int tv_sec, unsigned int tv_usec, void *user_data)
{
Q_UNUSED(fd);
Q_UNUSED(sequence);
Q_UNUSED(tv_sec);
Q_UNUSED(tv_usec);
QEglFSKmsEventReaderThread *t = static_cast<QEglFSKmsEventReaderThread *>(QThread::currentThread());
t->eventHost()->handlePageFlipCompleted(user_data);
QEglFSKmsScreen *screen = static_cast<QEglFSKmsScreen *>(user_data);
screen->pageFlipped(sequence, tv_sec, tv_usec);
}
class RegisterWaitFlipEvent : public QEvent

9
src/plugins/platforms/eglfs/deviceintegration/eglfs_kms_support/qeglfskmsscreen.cpp
View File

@ -254,4 +254,13 @@ void QEglFSKmsScreen::setPowerState(QPlatformScreen::PowerState state)
m_powerState = state;
}
/* Informs exact page flip timing which can be used rendering optimization.
Consider this is from drm event reader thread. */
void QEglFSKmsScreen::pageFlipped(unsigned int sequence, unsigned int tv_sec, unsigned int tv_usec)
{
Q_UNUSED(sequence);
Q_UNUSED(tv_sec);
Q_UNUSED(tv_usec);
}
QT_END_NAMESPACE

1
src/plugins/platforms/eglfs/deviceintegration/eglfs_kms_support/qeglfskmsscreen_p.h
View File

@ -115,6 +115,7 @@ public:
bool isCursorOutOfRange() const { return m_cursorOutOfRange; }
void setCursorOutOfRange(bool b) { m_cursorOutOfRange = b; }
virtual void pageFlipped(unsigned int sequence, unsigned int tv_sec, unsigned int tv_usec);
protected:
QEglFSKmsDevice *m_device;