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-rw-r--r--src/common/fs/fs_android.cpp98
1 files changed, 98 insertions, 0 deletions
diff --git a/src/common/fs/fs_android.cpp b/src/common/fs/fs_android.cpp
new file mode 100644
index 000000000..298a79bac
--- /dev/null
+++ b/src/common/fs/fs_android.cpp
@@ -0,0 +1,98 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "common/fs/fs_android.h"
+
+namespace Common::FS::Android {
+
+JNIEnv* GetEnvForThread() {
+ thread_local static struct OwnedEnv {
+ OwnedEnv() {
+ status = g_jvm->GetEnv(reinterpret_cast<void**>(&env), JNI_VERSION_1_6);
+ if (status == JNI_EDETACHED)
+ g_jvm->AttachCurrentThread(&env, nullptr);
+ }
+
+ ~OwnedEnv() {
+ if (status == JNI_EDETACHED)
+ g_jvm->DetachCurrentThread();
+ }
+
+ int status;
+ JNIEnv* env = nullptr;
+ } owned;
+ return owned.env;
+}
+
+void RegisterCallbacks(JNIEnv* env, jclass clazz) {
+ env->GetJavaVM(&g_jvm);
+ native_library = clazz;
+
+#define FR(FunctionName, ReturnValue, JMethodID, Caller, JMethodName, Signature) \
+ F(JMethodID, JMethodName, Signature)
+#define FS(FunctionName, ReturnValue, Parameters, JMethodID, JMethodName, Signature) \
+ F(JMethodID, JMethodName, Signature)
+#define F(JMethodID, JMethodName, Signature) \
+ JMethodID = env->GetStaticMethodID(native_library, JMethodName, Signature);
+ ANDROID_SINGLE_PATH_DETERMINE_FUNCTIONS(FR)
+ ANDROID_STORAGE_FUNCTIONS(FS)
+#undef F
+#undef FS
+#undef FR
+}
+
+void UnRegisterCallbacks() {
+#define FR(FunctionName, ReturnValue, JMethodID, Caller, JMethodName, Signature) F(JMethodID)
+#define FS(FunctionName, ReturnValue, Parameters, JMethodID, JMethodName, Signature) F(JMethodID)
+#define F(JMethodID) JMethodID = nullptr;
+ ANDROID_SINGLE_PATH_DETERMINE_FUNCTIONS(FR)
+ ANDROID_STORAGE_FUNCTIONS(FS)
+#undef F
+#undef FS
+#undef FR
+}
+
+bool IsContentUri(const std::string& path) {
+ constexpr std::string_view prefix = "content://";
+ if (path.size() < prefix.size()) [[unlikely]] {
+ return false;
+ }
+
+ return path.find(prefix) == 0;
+}
+
+int OpenContentUri(const std::string& filepath, OpenMode openmode) {
+ if (open_content_uri == nullptr)
+ return -1;
+
+ const char* mode = "";
+ switch (openmode) {
+ case OpenMode::Read:
+ mode = "r";
+ break;
+ default:
+ UNIMPLEMENTED();
+ return -1;
+ }
+ auto env = GetEnvForThread();
+ jstring j_filepath = env->NewStringUTF(filepath.c_str());
+ jstring j_mode = env->NewStringUTF(mode);
+ return env->CallStaticIntMethod(native_library, open_content_uri, j_filepath, j_mode);
+}
+
+#define FR(FunctionName, ReturnValue, JMethodID, Caller, JMethodName, Signature) \
+ F(FunctionName, ReturnValue, JMethodID, Caller)
+#define F(FunctionName, ReturnValue, JMethodID, Caller) \
+ ReturnValue FunctionName(const std::string& filepath) { \
+ if (JMethodID == nullptr) { \
+ return 0; \
+ } \
+ auto env = GetEnvForThread(); \
+ jstring j_filepath = env->NewStringUTF(filepath.c_str()); \
+ return env->Caller(native_library, JMethodID, j_filepath); \
+ }
+ANDROID_SINGLE_PATH_DETERMINE_FUNCTIONS(FR)
+#undef F
+#undef FR
+
+} // namespace Common::FS::Android