agdk-egui: use upstream egui-winit + egui-wgpu crates

The functionality found in egui_winit_platform and egui_wgpu_backend is
now available in the upstream egui-winit and egui-wgpu crates
respectively.

This has simplified the example itself and also removed the dependency
on epi.

The example is now based on egui 0.18 (was previously 0.17)

Since the upstream egui-winit/wgpu crates were generally assuming that
the graphics context and surface can be initialized immediately this
currently builds against a branch that aims to upstream changes that
remove these assumptions:

https://github.com/rib/egui/tree/android-deferred-winit-wgpu
Ref: emilk/egui#1634

examples/agdk-egui/Cargo.toml

@@ -8,20 +8,23 @@ resolver = "2"
 
 [dependencies]
 log = "0.4"
-winit = { git = "https://github.com/rib/winit", branch = "agdk-game-activity" }
-#winit = { path="../../../winit" }
+winit = "0.26"
 wgpu = "0.12.0"
 pollster = "0.2"
-#egui_winit_platform = "0.14"
-egui_winit_platform = { path = "../../../egui_winit_platform" }
-egui_wgpu_backend = "0.17"
-egui = "0.17"
-chrono = "0.4"
-epi = "0.17"
-egui_demo_lib = "0.17"
+egui = "0.18"
+egui-wgpu = { version = "0.18", features = [ "winit" ] }
+egui-winit = { version = "0.18", default-features = false }
+egui_demo_lib = "0.18"
 
 [patch.crates-io]
 winit = { git = "https://github.com/rib/winit", branch = "agdk-game-activity" }
+#winit = { path="../../../winit" }
+egui = { git = "https://github.com/rib/egui", branch = "android-deferred-winit-wgpu" }
+egui-winit = { git = "https://github.com/rib/egui", branch = "android-deferred-winit-wgpu" }
+egui-wgpu = { git = "https://github.com/rib/egui", branch = "android-deferred-winit-wgpu" }
+#egui = { path = "../../../egui/egui" }
+#egui-wgpu = { path = "../../../egui/egui-wgpu" }
+#egui-winit = { path = "../../../egui/egui-winit" }
 
 [target.'cfg(not(target_os = "android"))'.dependencies]
 env_logger = "0.9"

examples/agdk-egui/README.md

@@ -3,6 +3,9 @@ This tests using the game_activity crate with egui, winit and wgpu.
 This is based on a re-worked winit backend here:
 https://github.com/rib/winit/tree/agdk-game-activity
 
+and based on updated egui-winit and egui-wgpu crates here:
+https://github.com/rib/egui/tree/android-deferred-winit-wgpu
+
 ```
 rustup target add aarch64-linux-android