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eglfs/kms: Add drm atomic zpos property handling 

This adds the ability to specify a ZPOS property for the eglfs plane
ZPOS will allow to control the relative position between eglfs layer
and the other layers.

It is bound to using QT_QPA_EGLFS_KMS_ZPOS environment variable to determine
its value.

Change-Id: I51986ccb22a9dbaeef20165ac5feb7dbe8047373
Reviewed-by: Laszlo Agocs <laszlo.agocs@qt.io>
bb10
Lionel CHAZALLON 2018-04-07 10:41:38 +02:00
parent eac736e0fb
commit 93cf1cf2e5
3 changed files with 7 additions and 0 deletions
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2
src/platformsupport/kmsconvenience/qkmsdevice.cpp
View File

@ -824,6 +824,8 @@ void QKmsDevice::discoverPlanes()
plane.crtcXPropertyId = prop->prop_id;
} else if (!strcasecmp(prop->name, "crtc_y")) {
plane.crtcYPropertyId = prop->prop_id;
} else if (!strcasecmp(prop->name, "zpos")) {
plane.zposPropertyId = prop->prop_id;
}
});

1
src/platformsupport/kmsconvenience/qkmsdevice_p.h
View File

@ -177,6 +177,7 @@ struct QKmsPlane
uint32_t srcheightPropertyId = 0;
uint32_t crtcwidthPropertyId = 0;
uint32_t crtcheightPropertyId = 0;
uint32_t zposPropertyId = 0;
};
Q_DECLARE_OPERATORS_FOR_FLAGS(QKmsPlane::Rotations)

4
src/plugins/platforms/eglfs/deviceintegration/eglfs_kms/qeglfskmsgbmscreen.cpp
View File

@ -311,6 +311,10 @@ void QEglFSKmsGbmScreen::flip()
m_output.modes[m_output.mode].hdisplay);
drmModeAtomicAddProperty(request, op.eglfs_plane->id, op.eglfs_plane->crtcheightPropertyId,
m_output.modes[m_output.mode].vdisplay);
static int zpos = qEnvironmentVariableIntValue("QT_QPA_EGLFS_KMS_ZPOS");
if (zpos)
drmModeAtomicAddProperty(request, op.eglfs_plane->id, op.eglfs_plane->zposPropertyId, zpos);
}
#endif
} else {