Implement shared resources fix for HSR

game_payload/include/game.h

@@ -11,12 +11,18 @@ enum game_id {
     GAME_HSR_CN
 };
 
+#define INVOKE_CALLBACK(callback, ...) if (callback) { callback(__VA_ARGS__); }
+
+typedef void (*unityplayer_callback_t)(HMODULE unityModule);
+
 struct game_data {
     enum game_id id; // Temporary
     const char *name;
     const char *assembly_path;
     const char *tp6_section_name; // Unused for now
     const char *tvm_section_name;
+
+    unityplayer_callback_t unityplayer_callback;
 };
 
 void game_detect(struct game_data *buf);

game_payload/src/hi3.c

@@ -39,4 +39,6 @@ void hi3_fill_data(struct game_data *buf) {
     buf->assembly_path = HI3_ASSEMBLY_PATH;
     buf->tp6_section_name = HI3_TP6_SECTION_NAME;
     buf->tvm_section_name = HI3_TVM_SECTION_NAME;
+
+    buf->unityplayer_callback = NULL;
 }

game_payload/src/hsr.c

@@ -20,6 +20,21 @@ const struct crc_id_pair HSR_REGIONS[] = {
     { 0x3e644d26, GAME_HSR_CN }  // cn v1.1.0
 };
 
+static void _unityplayer_callback(HMODULE unityModule) {
+    // Disable shared resources
+
+    // Temporarily hardcoded offset
+    // v1.1.0, same for os and cn
+    unsigned char *srAddr = ((unsigned char*)unityModule) + 0x16430;
+
+    DWORD oldProtect;
+    VirtualProtect(srAddr, 1, PAGE_EXECUTE_READWRITE, &oldProtect);
+
+    *srAddr = 0xC3; // ret
+
+    VirtualProtect(srAddr, 1, oldProtect, &oldProtect);
+}
+
 void hsr_fill_data(struct game_data *buf) {
     uint32_t crc = utils_file_crc32c("UnityPlayer.dll");
     
@@ -39,4 +54,6 @@ void hsr_fill_data(struct game_data *buf) {
     buf->assembly_path = HSR_ASSEMBLY_PATH;
     buf->tp6_section_name = HSR_TP6_SECTION_NAME;
     buf->tvm_section_name = HSR_TVM_SECTION_NAME;
+
+    buf->unityplayer_callback = &_unityplayer_callback;
 }

game_payload/src/main.c

@@ -29,8 +29,9 @@ BOOL WINAPI DllMain(HINSTANCE instance, DWORD reason, LPVOID reserved) {
     // ...magic
     tp6_setup_patcher(&game, instance, baseModule);
 
-    // Load the UnityPlayer module
+    // Load the UnityPlayer module and invoke the callback
     HMODULE unityModule = LoadLibraryA("UnityPlayer.dll");
+    INVOKE_CALLBACK(game.unityplayer_callback, unityModule);
 
     return TRUE;
 }