Desktop: Implement GPU accelerated offscreen rendering and improve rendering efficency (#3056)

* WIP accelerade offscreen canvas implementation

* Implement vulkan dmabuf import

* Add fps printing

* Add feature gates

* Forgot to add file

* Experimental windows support

* Cast ptr to isize

* Remove testing chrome://flags url

* Experimental macos support for texture import

* Cleanup code and improve latency / frame pacing

* Add path for importing textures on windows through dx12

* Update doc comment

* Import textures through metal on macos

* Review cleanup

---------

Co-authored-by: Timon Schelling <me@timon.zip>

desktop/src/cef/platform.rs

@@ -0,0 +1,59 @@
+#[cfg(feature = "accelerated_paint")]
+pub fn should_enable_hardware_acceleration() -> bool {
+	#[cfg(target_os = "linux")]
+	{
+		// Check if running on Wayland or X11
+		let has_wayland = std::env::var("WAYLAND_DISPLAY")
+			.ok()
+			.filter(|var| !var.is_empty())
+			.or_else(|| std::env::var("WAYLAND_SOCKET").ok())
+			.filter(|var| !var.is_empty())
+			.is_some();
+
+		let has_x11 = std::env::var("DISPLAY").ok().filter(|var| !var.is_empty()).is_some();
+
+		if !has_wayland && !has_x11 {
+			tracing::warn!("No display server detected, disabling hardware acceleration");
+			return false;
+		}
+
+		// Check for NVIDIA proprietary driver (known to have issues)
+		if let Ok(driver_info) = std::fs::read_to_string("/proc/driver/nvidia/version") {
+			if driver_info.contains("NVIDIA") {
+				tracing::warn!("NVIDIA proprietary driver detected, hardware acceleration may be unstable");
+				// Still return true but with warning
+			}
+		}
+
+		// Check for basic GPU capabilities
+		if has_wayland {
+			tracing::info!("Wayland detected, enabling hardware acceleration");
+			true
+		} else if has_x11 {
+			tracing::info!("X11 detected, enabling hardware acceleration");
+			true
+		} else {
+			false
+		}
+	}
+
+	#[cfg(target_os = "windows")]
+	{
+		// Windows generally has good D3D11 support
+		tracing::info!("Windows detected, enabling hardware acceleration");
+		true
+	}
+
+	#[cfg(target_os = "macos")]
+	{
+		// macOS has good Metal/IOSurface support
+		tracing::info!("macOS detected, enabling hardware acceleration");
+		true
+	}
+
+	#[cfg(not(any(target_os = "linux", target_os = "windows", target_os = "macos")))]
+	{
+		tracing::warn!("Unsupported platform for hardware acceleration");
+		false
+	}
+}