WPI for manual initialization example.

integration_tests/examples/manual_graphics_initialization.rs

@@ -0,0 +1,48 @@
+use compositor_pipeline::{
+    pipeline::{GraphicsContext, Options},
+    Pipeline,
+};
+use live_compositor::config::read_config;
+
+// This example illustrates how to initialize a GraphicsContext separately to get access to a wgpu
+// instance, adapter, queue and device.
+fn main() {
+    let graphics_context =
+        GraphicsContext::new(false, wgpu::Features::default(), wgpu::Limits::default()).unwrap();
+
+    let _device = graphics_context.device.clone();
+    let _queue = graphics_context.queue.clone();
+
+    #[cfg(target_os = "linux")]
+    let _adapter = graphics_context
+        .vulkan_ctx
+        .as_ref()
+        .unwrap()
+        .wgpu_ctx
+        .adapter
+        .clone();
+
+    #[cfg(target_os = "linux")]
+    let _instance = graphics_context
+        .vulkan_ctx
+        .as_ref()
+        .unwrap()
+        .wgpu_ctx
+        .instance
+        .clone();
+
+    let config = read_config();
+
+    let _pipeline = Pipeline::new(Options {
+        wgpu_ctx: Some(graphics_context),
+        queue_options: config.queue_options,
+        stream_fallback_timeout: config.stream_fallback_timeout,
+        web_renderer: config.web_renderer,
+        force_gpu: config.force_gpu,
+        download_root: config.download_root,
+        output_sample_rate: config.output_sample_rate,
+        wgpu_features: config.required_wgpu_features,
+        load_system_fonts: Some(true),
+    })
+    .unwrap();
+}