From f176cbfe88233c32b8ef9a760d830e5e2f13d23c Mon Sep 17 00:00:00 2001 From: Elias Naur Date: Sat, 11 Jan 2020 23:21:27 +0100 Subject: [PATCH] app/internal/egl: try EGL_DEFAULT_DISPLAY is eglGetDisplay fails Fixes #77 Signed-off-by: Elias Naur --- app/internal/egl/egl.go | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/app/internal/egl/egl.go b/app/internal/egl/egl.go index 02ce40a2..ed22fab1 100644 --- a/app/internal/egl/egl.go +++ b/app/internal/egl/egl.go @@ -93,6 +93,12 @@ func NewContext(disp NativeDisplayType) (*Context, error) { return nil, err } eglDisp := eglGetDisplay(disp) + // eglGetDisplay can return EGL_NO_DISPLAY yet no error + // (EGL_SUCCESS), in which case a default EGL display might be + // available. + if eglDisp == nilEGLDisplay { + eglDisp = eglGetDisplay(EGL_DEFAULT_DISPLAY) + } if eglDisp == nilEGLDisplay { return nil, fmt.Errorf("eglGetDisplay failed: 0x%x", eglGetError()) }