Implement GX Thread for Asynchronous Rendering

- Introduced a new GX thread to handle the rendering pipeline, allowing the game thread to post commands without blocking.
- Added `gx_thread.h` and `gx_thread.cpp` to manage the command ring buffer and thread synchronization.
- Updated `vi.cpp` to utilize the GX thread for rendering tasks, improving frame pacing and responsiveness.
- Modified `main.cpp` to configure and start the GX thread, ensuring it integrates with the existing rendering workflow.
- Enhanced `openxr_integration.cpp` to register the GX thread with OpenXR for better performance in VR scenarios.
- Refactored `settings_overlay.cpp` to remove unnecessary waits for the frame worker, as the overlay now draws directly into the game thread's ImGui frame.
- Improved error handling and logging in the GX thread to capture exceptions during command execution.

android/app/src/main/java/org/wiicompiled/quest/GameStorage.kt

@@ -78,7 +78,7 @@ object GameStorage {
             // Written line by line: trimIndent runs after interpolation, so an interpolated line
             // would take the indent off every other one.
             val lines = mutableListOf(
-                "# WiiCompiled Quest configuration. Edit with the launcher, the in-game panel or adb pull/push.",
+                "# WiiCompiled Quest configuration. Edit with the launcher or the in-game panel. After an adb push, run chmod 664 on it or the app can no longer save settings.",
                 "[paths]",
                 "dvd_root = \"${discDirectory(context).absolutePath}\"",
             )

android/app/src/main/java/org/wiicompiled/quest/launcher/SettingsPage.kt

@@ -227,6 +227,11 @@ class SettingsPage(
                 read = { it.bool("video", "skip_unready_pipelines") ?: true },
                 write = { c, value -> c.setBool("video", "skip_unready_pipelines", value) },
             )
+            toggle(
+                R.string.graphics_gx_thread, R.string.graphics_gx_thread_helper,
+                read = { it.bool("video", "gx_thread") ?: true },
+                write = { c, value -> c.setBool("video", "gx_thread", value) },
+            )
         }
     }
 

android/app/src/main/res/values/strings.xml

@@ -188,6 +188,8 @@
     <string name="graphics_bloom_helper">Bloom\'s bright glow reads poorly in a headset, so it starts off.</string>
     <string name="graphics_skip_unready">Prevent shader stutters</string>
     <string name="graphics_skip_unready_helper">Skips a draw for a moment while its shader compiles instead of pausing the game.</string>
+    <string name="graphics_gx_thread">Graphics thread</string>
+    <string name="graphics_gx_thread_helper">Prepares the drawing on a second CPU core so busy scenes keep their speed. Turn off only to compare against the single-threaded path. Takes effect on the next launch.</string>
 
     <!-- Controls tab -->
     <string name="section_controls">Controllers</string>