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app/internal/egl: try EGL_DEFAULT_DISPLAY is eglGetDisplay fails

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Fixes #77

Signed-off-by: Elias Naur <mail@eliasnaur.com>
This commit is contained in:
Elias Naur
2020-01-11 23:21:27 +01:00
parent bc30683588
commit f176cbfe88
1 changed files with 6 additions and 0 deletions
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app/internal/egl/egl.go
+6
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@@ -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())
}