Initial HSR support

game_payload/include/game.h

@@ -5,7 +5,10 @@
 enum game_id {
     GAME_INVALID,
     
-    GAME_HI3_GLB
+    GAME_HI3_GLB,
+
+    GAME_HSR_OS,
+    GAME_HSR_CN
 };
 
 struct game_data {
@@ -19,3 +22,4 @@ struct game_data {
 void game_detect(struct game_data *buf);
 
 void hi3_fill_data(struct game_data *buf);
+void hsr_fill_data(struct game_data *buf);

game_payload/meson.build

@@ -6,6 +6,7 @@ sources = [
     'src/pe.c',
     'src/game.c',
     'src/hi3.c',
+    'src/hsr.c',
     'src/utils.c',
     'src/err.c',
 

game_payload/src/game.c

@@ -2,17 +2,31 @@
 
 #include <game.h>
 
+typedef void (*fill_fn)(struct game_data *buf);
+
+struct name_fn_pair {
+    const char *name;
+    fill_fn fill;
+};
+
+const struct name_fn_pair GAMES[] = {
+    { "bh3.exe",      &hi3_fill_data },
+    { "starrail.exe", &hsr_fill_data }
+};
+
 void game_detect(struct game_data *buf) {
-    wchar_t exePath[MAX_PATH];
-    GetModuleFileNameW(NULL, exePath, MAX_PATH);
+    char exePath[MAX_PATH];
+    GetModuleFileNameA(NULL, exePath, MAX_PATH);
 
-    wchar_t *exeName = wcsrchr(exePath, L'\\') + 1;
-    wcslwr(exeName);
+    char *exeName = strrchr(exePath, '\\') + 1;
+    strlwr(exeName);
 
-    // Only HI3 is supported for now
-    if (wcscmp(exeName, L"bh3.exe") == 0) {
-        hi3_fill_data(buf);
-    } else {
-        err_mb_w(L"Unknown game: %ls", exeName);
+    for (size_t i = 0; i < sizeof(GAMES) / sizeof(struct name_fn_pair); i++) {
+        if (strcmp(exeName, GAMES[i].name) == 0) {
+            GAMES[i].fill(buf);
+            return;
         }
     }
+
+    err_mb_a("Unknown game: %s", exeName);
+}

game_payload/src/hsr.c

@@ -0,0 +1,42 @@
+#include <utils.h>
+#include <err.h>
+
+#include <game.h>
+
+const char *HSR_NAME             = "StarRail";
+const char *HSR_ASSEMBLY_PATH    = "GameAssembly.dll";
+const char *HSR_TP6_SECTION_NAME = ".ace";
+const char *HSR_TVM_SECTION_NAME = ".tvm0";
+
+struct crc_id_pair {
+    uint32_t crc;
+    enum game_id id;
+};
+
+const struct crc_id_pair HSR_REGIONS[] = {
+    // It may be possible to get rid of region-specific data altogether in the future
+
+    { 0x2df53005, GAME_HSR_OS }, // os v1.1.0
+    { 0x3e644d26, GAME_HSR_CN }  // cn v1.1.0
+};
+
+void hsr_fill_data(struct game_data *buf) {
+    uint32_t crc = utils_file_crc32c("UnityPlayer.dll");
+    
+    enum game_id id = GAME_INVALID;
+    for (size_t i = 0; i < sizeof(HSR_REGIONS) / sizeof(struct crc_id_pair); i++) {
+        if (HSR_REGIONS[i].crc == crc) {
+            id = HSR_REGIONS[i].id;
+        }
+    }
+    
+    if (id == GAME_INVALID) {
+        err_mb_a("Invalid UnityPlayer.dll checksum: %d", crc);
+    }
+
+    buf->id = id;
+    buf->name = HSR_NAME;
+    buf->assembly_path = HSR_ASSEMBLY_PATH;
+    buf->tp6_section_name = HSR_TP6_SECTION_NAME;
+    buf->tvm_section_name = HSR_TVM_SECTION_NAME;
+}