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raspberry pi: manage eglfs display id with env var 

Specify the display to use by setting environment variable
QT_QPA_EGLFS_DISPMANX_ID Possible values are :
0: MAIN LCD
1: AUX LCD
2: HDMI
3: SDTV
4: FORCE LCD
5: FORCE TV
6: FORCE OTHER

Change-Id: I146db9a7f423bd4c6c1716c64d3df4d2388e85f9
Reviewed-by: Andy Nichols <andy.nichols@qt.io>
bb10
charlycha 2016-02-09 06:36:07 +01:00 committed by Laszlo Agocs
parent b643d6f347
commit 457d91bb07
1 changed files with 16 additions and 2 deletions
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18
src/plugins/platforms/eglfs/deviceintegration/eglfs_brcm/qeglfsbrcmintegration.cpp
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@ -87,9 +87,23 @@ void QEglFSBrcmIntegration::platformInit()
bcm_host_init();
}
static int getDisplayId()
{
// As defined in vc_dispmanx_types.h
// DISPMANX_ID_MAIN_LCD 0
// DISPMANX_ID_AUX_LCD 1
// DISPMANX_ID_HDMI 2
// DISPMANX_ID_SDTV 3
// DISPMANX_ID_FORCE_LCD 4
// DISPMANX_ID_FORCE_TV 5
// DISPMANX_ID_FORCE_OTHER 6 /* non-default display */
static const int dispmanxId = qEnvironmentVariableIntValue("QT_QPA_EGLFS_DISPMANX_ID");
return (dispmanxId >= 0 && dispmanxId <= 6) ? dispmanxId : 0;
}
EGLNativeDisplayType QEglFSBrcmIntegration::platformDisplay() const
{
dispman_display = vc_dispmanx_display_open(0/* LCD */);
dispman_display = vc_dispmanx_display_open(getDisplayId());
return EGL_DEFAULT_DISPLAY;
}
@ -101,7 +115,7 @@ void QEglFSBrcmIntegration::platformDestroy()
QSize QEglFSBrcmIntegration::screenSize() const
{
uint32_t width, height;
graphics_get_display_size(0 /* LCD */, &width, &height);
graphics_get_display_size(getDisplayId(), &width, &height);
return QSize(width, height);
}