GLFW3 failed to initialize on Weston 5.0.0
GLFW3 (wayland backend) failed to initialize on Weston 5.0.0 (backend is x11-backend.so
)
The error code got from the error callback function of GLFW is 65544
, the description of which is EGL: Failed to create window surface: ERROR: UNKNOWN EGL ERROR
And I tested one of my demos which was written when I was learning Wayland protocol and EGL to get more information. My program still works on Gnome (wayland backend) now. But on Weston 5.0.0, I find it failed at the following line in my program:
surface = eglCreatePlatformWindowSurface(
display, // returned from eglGetPlatformDisplay(EGLenum, void *, const EGLAttrib *)
_eglConfig, // returned from eglChooseConfig(EGLDisplay, const EGLint *, EGLConfig *, EGLint, EGLint *)
nativeEGLWindow, // returned from wl_egl_window_create(struct wl_surface *, int, int)
windowAttrib // const array of EGLAttrib
);
The eglCreatePlatformWindowSurface
just returned EGL_NO_SURFACE
and set the error code to 0x3008
, which is EGL_BAD_DISPLAY
defined in /usr/include/EGL/egl.h
.
I am sure that the EGL Display has already been initialized with eglInitialize
returned EGL_TRUE
.
According to the EGL specification this is not the correct behavior.
I am willing to help debug but I do not know what to do after tracing into libglfw.so
or libEGL.so
without debugging symbols in gdb.