Thanks again, I’ve solved the issue that GLES will load X11 backend on
tizen-ivi, by recompiling the mesa only with wayland, or “export
EGL_PLATFORM=wayland” without recompiling.
But the new problem comes, my application crash again, in the application, all
the egl initialize steps finished, like “eglGetDisplay ok, eglInitialize ok,
eglChooseConfig ok, eglCreateContext ok,” but aftet call the
“eglCreateWindowSurface”, my application crashed, analyze the mesa’s egl codes,
I find out that “dri2_wl_create_window_surface” will be called via
eglCreateWindowSurface. The below is two key functions, parameter “window” and
“native_window” is the same one.
API declaration:
eglCreateWindowSurface(EGLDisplay dpy, EGLConfig config, EGLNativeWindowType
window, const EGLint *attrib_list)
dri2_wl_create_window_surface(_EGLDriver *drv, _EGLDisplay *disp, _EGLConfig
*conf, void *native_window, const EGLint *attrib_list)
My application’s window is based on QT, I normally use QT’s API like
“Mainwindow-> effectiveWinId() “ or “Mainwindow->winId()” to get the WINDOW for
“window”.
But in wayland, I pass the “winId” to the eglCreateWindowSurface again, it
failed, because mesa’s wayland interface need the struct named “wl_egl_window”
for “native_window”, not just an window HWND integer on X11.
struct wl_egl_window {
struct wl_surface *surface;
int width;
int height;
int dx;
int dy;
int attached_width;
int attached_height;
void *private;
void (*resize_callback)(struct wl_egl_window *, void *);
};
In the deep codes, native_window will be operated , so if I passed the HWND
integer to “eglCreateWindowSurface”, it will crash!
Is there any way could transform the QT window to the struct “wl_egl_window”?
Best regards,
Jacky NI.
From: Manuel Bachmann [mailto:manuel.bachm...@open.eurogiciel.org]
Sent: Wednesday, June 18, 2014 1:54 AM
To: Jacky (ZhiJun) Ni
Cc: ivi@lists.tizen.org
Subject: Re: eglInitialize failed on
tizen_20140422.1_ivi-release-mbr-i586-sdb.raw.bz2
Hmm, that shouldn't happen ; yes, updating to a more recent snapshot should
solve this. At worst, on your current install, you could try this :
export EGL_DRIVER=dri2
export EGL_PLATFORM=wayland
./run_my_program
Not sure about the 2nd variable and the cases where it is actually read ; but
worth trying. Running the binary from weston-terminal, and not a regular VT,
may also help.
2014-06-17 11:40 GMT+02:00 Jacky (ZhiJun) Ni <j...@telecomsys.com>:
HI Manuel,
Thanks for your reply, I’ve tried your method but the application
crash, then I use the gdb to trace the stack, find that libEGL.so.1 call the “
dri2_initialize_x11()”, as you mentioned it seems that EGL trying to use X11
backend, may I try the latest snapshots? the following is the bt print info:
Program received signal SIGSEGV, Segmentation fault.
[Switching to LWP 681]
0xb6f205aa in XGetXCBConnection () from /lib/libX11-xcb.so.1
(gdb) bt
#0 0xb6f205aa in XGetXCBConnection () from /lib/libX11-xcb.so.1
#1 0xb7e29e8a in dri2_initialize_x11 () from /lib/libEGL.so.1
#2 0xb7e27851 in dri2_initialize () from /lib/libEGL.so.1
#3 0xb7e21710 in _eglMatchAndInitialize () from /lib/libEGL.so.1
#4 0xb7e21ac9 in _eglMatchDriver () from /lib/libEGL.so.1
#5 0xb7e1cbf8 in eglInitialize () from /lib/libEGL.so.1
Best Regards,
Jacky Ni
From: Manuel Bachmann [mailto:manuel.bachm...@open.eurogiciel.org]
Sent: Tuesday, June 17, 2014 4:44 PM
To: Jacky (ZhiJun) Ni
Cc: ivi@lists.tizen.org
Subject: Re: eglInitialize failed on
tizen_20140422.1_ivi-release-mbr-i586-sdb.raw.bz2
Hi Jacky,
It looks like EGL is trying to use its X11 backend ; which was the default on
older installs due to the way EGL/Mesa used to be built (FYI, it was changed
in latest snapshots).
You may work around the problem by explicitly calling the EGL Wayland backend :
#include <wayland-egl.h>
struct wl_display *display;
display = wl_display_connect (NULL);
m_display = eglGetDisplay ((EGLNativeDisplayType) display);
Regards,
Manuel
2014-06-17 10:07 GMT+02:00 Jacky (ZhiJun) Ni <j...@telecomsys.com>:
Hi all,
I came across the issue that executing of function “eglInitialize “
failed, if anyone who knows the solution, please help me, the followings are
the print info and my codes:
eglGetDisplay begin
eglGetDisplay end
eglInitialize begin
libEGL warning: DRI2: xcb_connect failed
libEGL warning: DRI2: xcb_connect failed
libEGL warning: GLX: failed to load GLX
eglInitialize falied
My snippet codes:
printf("eglGetDisplay begin\n");
if ((m_display = eglGetDisplay(EGL_DEFAULT_DISPLAY)) != EGL_NO_DISPLAY)
{
errorLine = __LINE__;
printf("eglGetDisplay falied\n");
return;
}
printf("eglGetDisplay end\n");
printf("eglInitialize begin\n");
if (!eglInitialize(m_display, 0, 0))
{
errorLine = __LINE__;
printf("eglInitialize falied\n");
return;
}
printf("eglInitialize end\n");
Best Regards,
Jacky Ni
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Regards,
Manuel BACHMANN
Tizen Project
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Regards,
Manuel BACHMANN
Tizen Project
VANNES-FR
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