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QNX: Remove most of the CPU overhead for video rendering

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This patch uses the GL_OES_EGL_image extension to create a OpenGL Texture handle
for a libscreen pixmap. If the extension is not available it uses the "old"
technique as fallback where the image data is copied into a QImage.

This reduces the CPU load by more than 70% and allows HD videos to be played jitter-free.

Task-number: QTBUG-37752

Change-Id: I4cad22c39390e4cf9eb5be5f0bfe446544a11b9e
Reviewed-by: Bernd Weimer <bweimer@blackberry.com>
Reviewed-by: Sean Harmer <sean.harmer@kdab.com>
This commit is contained in:
Fabian Bumberger
2014-03-21 16:02:48 +01:00
committed by The Qt Project
parent d2b54b360e
commit 36649887e8
6 changed files with 237 additions and 64 deletions
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2
src/plugins/qnx/camera/bbcamerasession.cpp
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@@ -140,7 +140,7 @@ BbCameraSession::BbCameraSession(QObject *parent)
connect(this, SIGNAL(captureModeChanged(QCamera::CaptureModes)), SLOT(updateReadyForCapture()));
connect(m_orientationHandler, SIGNAL(orientationChanged(int)), SLOT(deviceOrientationChanged(int)));
connect(m_windowGrabber, SIGNAL(frameGrabbed(QImage)), SLOT(viewfinderFrameGrabbed(QImage)));
connect(m_windowGrabber, SIGNAL(frameGrabbed(QImage, int)), SLOT(viewfinderFrameGrabbed(QImage)));
}
BbCameraSession::~BbCameraSession()