The open source OpenXR runtime
c/client: Comments in the EGL insert fence function
Part-of: <https://gitlab.freedesktop.org/monado/monado/-/merge_requests/2433>
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src/xrt/compositor/client/comp_egl_client.c
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src/xrt/compositor/client/comp_egl_client.c
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EGLDisplay dpy = ceglc->current.dpy;
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#ifdef XRT_GRAPHICS_SYNC_HANDLE_IS_FD
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// https://registry.khronos.org/EGL/extensions/ANDROID/EGL_ANDROID_native_fence_sync.txt
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// create also inserts the fence in the command stream
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EGLSyncKHR sync = eglCreateSyncKHR(dpy, EGL_SYNC_NATIVE_FENCE_ANDROID, NULL);
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if (sync == EGL_NO_SYNC_KHR) {
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EGL_ERROR("Failed to insert fence!");
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return XRT_ERROR_FENCE_CREATE_FAILED;
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}
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// Flush needed to create native FD
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glFlush();
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int fence_fd = eglDupNativeFenceFDANDROID(dpy, sync);