feat: add GPU acceleration JVM parameters support

- Add Prism rendering pipeline parameters when enable_gpu_acceleration is enabled
- Windows: -Dprism.order=d3d,es2,sw (Direct3D priority)
- Linux/macOS: -Dprism.order=es2,sw (OpenGL ES priority)
- Add -Dprism.forcegpu=true to force hardware acceleration

1 files changed, 15 insertions, 0 deletions

diff --git a/src-tauri/src/main.rs b/src-tauri/src/main.rs
index 63287cd..f15a2c6 100644
--- a/src-tauri/src/main.rs
+++ b/src-tauri/src/main.rs
@@ -660,6 +660,21 @@ async fn start_game(
         args.push(format!("-Djava.library.path={}", natives_path));
     }
 
+    // Add GPU acceleration parameters if enabled
+    // JavaFX Prism rendering pipeline settings for hardware acceleration
+    if config.enable_gpu_acceleration {
+        // Platform-specific rendering order:
+        // - Windows: d3d (Direct3D) > es2 (OpenGL ES 2) > sw (software)
+        // - Linux/macOS: es2 > sw (no Direct3D available)
+        if cfg!(target_os = "windows") {
+            args.push("-Dprism.order=d3d,es2,sw".to_string());
+        } else {
+            args.push("-Dprism.order=es2,sw".to_string());
+        }
+        // Force GPU usage instead of software fallback
+        args.push("-Dprism.forcegpu=true".to_string());
+    }
+
     // Ensure classpath is set if not already
     if !args.iter().any(|a| a == "-cp" || a == "-classpath") {
         args.push("-cp".to_string());