VC crash screen + load progress

Main.py

@@ -248,8 +248,49 @@ def generate_wad(wad_file: str, rom_file: str, output_file: str, channel_title:
     if not os.path.isfile(wad_file):
         raise Exception("Cannot open base WAD file.")
 
+    try:
+        with open(wad_file, 'rb') as wad_stream:
+            wad_buffer = bytearray(wad_stream.read(0xFC0))
+    except FileNotFoundError as ex:
+            raise FileNotFoundError(f'Invalid path to Base WAD: "{input_file}"')
+
+    wad_app1_sha1_usa = [
+        [0x76, 0x3D, 0x4D, 0x3D, 0x07, 0x13, 0xE4, 0xD1, 0x0E, 0x44, 0x54, 0x0C, 0xCF, 0xA3, 0x25, 0x5E, 0x19, 0xF2, 0x8A, 0xF7], # US Wad App1
+    ]
+
+    wad_app1_sha1_jpn = [
+        [0x47, 0x54, 0x6E, 0x48, 0x46, 0x7A, 0xE1, 0x4D, 0x71, 0x2B, 0x8C, 0x20, 0x7E, 0x91, 0x18, 0x21, 0x58, 0x6D, 0x10, 0x43], # JP Wad App1
+    ]
+
+    wad_app5_sha1_usa = [
+        [0x7C, 0x94, 0x77, 0x69, 0x68, 0xA7, 0xE1, 0xF5, 0xFD, 0x5D, 0xC5, 0xE2, 0xB6, 0xF8, 0x32, 0xEE, 0xF4, 0x55, 0x35, 0xA0], # US Wad App5
+    ]
+
+    wad_app5_sha1_jpn = [
+        [0xD1, 0x4D, 0xEF, 0x1E, 0xCE, 0xB0, 0x6D, 0xE2, 0x05, 0xA3, 0x53, 0xC4, 0xB5, 0x66, 0xFD, 0x55, 0x9C, 0x25, 0x4F, 0x1F], # JP Wad App5
+    ]
+
+    wad_patch_name = ""
+    wad_app1_sha1 = list(wad_buffer[0xF18:0xF2C])
+    wad_app5_sha1 = list(wad_buffer[0xFA8:0xFBC])
+
+    is_usa_app1 = wad_app1_sha1 in wad_app1_sha1_usa
+    is_usa_app5 = wad_app5_sha1 in wad_app5_sha1_usa
+    is_jpn_app1 = wad_app1_sha1 in wad_app1_sha1_jpn
+    is_jpn_app5 = wad_app5_sha1 in wad_app5_sha1_jpn
+
+    is_usa_wad = is_usa_app1 and is_usa_app5
+    is_jpn_wad = is_jpn_app1 and is_jpn_app5
+
+    if is_usa_wad:
+        wad_patch_name = "ootr_usa.gzi"
+    elif is_jpn_wad:
+        wad_patch_name = "ootr_jpn.gzi"
+    else:
+        raise RuntimeError('Base WAD file is not a valid OoT USA or JPN wad.')
+
     gzinject_path = "./" if is_bundled() else "bin/gzinject/"
-    gzinject_patch_path = gzinject_path + "ootr.gzi"
+    gzinject_patch_path = gzinject_path + wad_patch_name
     if platform.system() == 'Windows':
         if platform.machine() == 'AMD64':
             gzinject_path += "gzinject.exe"