basic saf impl

include/android_utils.hpp

@@ -0,0 +1,6 @@
+#pragma once
+
+class AndroidUtils {
+    public:
+        static int openDocument(const char* directory, const char* mode);
+};

src/io_file.cpp

@@ -21,6 +21,10 @@
 #include <unistd.h>  // For ftruncate
 #endif
 
+#ifdef __ANDROID__
+#include "android_utils.hpp"
+#endif
+
 IOFile::IOFile(const std::filesystem::path& path, const char* permissions) : handle(nullptr) { open(path, permissions); }
 
 bool IOFile::open(const std::filesystem::path& path, const char* permissions) {
@@ -34,8 +38,17 @@ bool IOFile::open(const char* filename, const char* permissions) {
 	if (isOpen()) {
 		close();
 	}
+    #ifdef __ANDROID__
+        std::string path(filename);
 
+        if(path.find("://") != std::string::npos){ //IF SAF URI
+            handle = fdopen(AndroidUtils::openDocument(filename, permissions), permissions);
+        } else {
             handle = std::fopen(filename, permissions);
+        }
+	#else
+    	handle = std::fopen(filename, permissions);
+	#endif
 	return isOpen();
 }
 

src/jni_driver.cpp

@@ -7,6 +7,7 @@
 #include "emulator.hpp"
 #include "renderer_gl/renderer_gl.hpp"
 #include "services/hid.hpp"
+#include "android_utils.hpp"
 
 std::unique_ptr<Emulator> emulator = nullptr;
 HIDService* hidService = nullptr;
@@ -33,6 +34,23 @@ JNIEnv* jniEnv() {
 	return env;
 }
 
+int AndroidUtils::openDocument(const char* path, const char* perms) {
+    auto env = jniEnv();
+
+    auto clazz = env->FindClass("com/panda3ds/pandroid/AlberDriver");
+    auto method = env->GetStaticMethodID(clazz, "openDocument", "(Ljava/lang/String;Ljava/lang/String;)I");
+
+    jstring uri = env->NewStringUTF(path);
+    jstring jmode = env->NewStringUTF(perms);
+
+    jint result = env->CallStaticIntMethod(clazz, method, uri, jmode);
+
+    env->DeleteLocalRef(uri);
+    env->DeleteLocalRef(jmode);
+
+    return (int)result;
+}
+
 extern "C" {
 
 #define MAKE_SETTING(functionName, type, settingName) \

src/pandroid/app/src/main/java/com/panda3ds/pandroid/AlberDriver.java

@@ -1,7 +1,21 @@
 package com.panda3ds.pandroid;
 
+import android.content.Context;
+import android.net.Uri;
+import android.os.ParcelFileDescriptor;
+import android.os.Process;
+import android.system.Os;
+import android.system.OsConstants;
 import android.util.Log;
 
+import com.panda3ds.pandroid.app.PandroidApplication;
+import com.panda3ds.pandroid.utils.Constants;
+import com.panda3ds.pandroid.utils.FileUtils;
+import com.panda3ds.pandroid.utils.GameUtils;
+
+import java.io.File;
+import java.util.Objects;
+
 public class AlberDriver {
 	AlberDriver() { super(); }
 
@@ -24,5 +38,25 @@ public class AlberDriver {
 
 	public static native void setShaderJitEnabled(boolean enable);
 
+	public static int openDocument(String path, String mode){
+		try {
+			mode = mode.substring(0,1);
+			Context context = PandroidApplication.getAppContext();
+			Uri uri = FileUtils.obtainUri(path);
+			ParcelFileDescriptor parcel;
+			if (Objects.equals(uri.getScheme(), "game")) {
+				uri = FileUtils.obtainUri(GameUtils.getCurrentGame().getRomPath());
+				parcel = context.getContentResolver().openFileDescriptor(uri, "r");
+			} else {
+				parcel = context.getContentResolver().openFileDescriptor(uri, mode);
+			}
+			int fd = parcel.detachFd();
+			parcel.close();
+
+			return fd;
+		} catch (Exception e){
+			throw new RuntimeException(e);
+		}
+	}
 	static { System.loadLibrary("Alber"); }
 }

src/pandroid/app/src/main/java/com/panda3ds/pandroid/utils/FileUtils.java

@@ -5,6 +5,7 @@ import android.content.Intent;
 import android.net.Uri;
 import android.os.ParcelFileDescriptor;
 import android.system.Os;
+import android.system.OsConstants;
 import android.util.Log;
 
 import androidx.documentfile.provider.DocumentFile;
@@ -243,4 +244,8 @@ public class FileUtils {
         
         return result;
     }
+
+    public static Uri obtainUri(String path) {
+        return parseFile(path).getUri();
+    }
 }

src/pandroid/app/src/main/java/com/panda3ds/pandroid/utils/GameUtils.java

@@ -40,7 +40,9 @@ public class GameUtils {
 
     public static void launch(Context context, GameMetadata game) {
         currentGame = game;
-        String path = FileUtils.obtainRealPath(game.getRomPath());
+        String[] parts = Uri.decode(game.getRomPath()).split("/");
+        String name = parts[parts.length-1];
+        String path = "game://internal/"+name;
         context.startActivity(new Intent(context, GameActivity.class).putExtra(Constants.ACTIVITY_PARAMETER_PATH, path));
     }