mbEditorPro2.0 release

2022-12-25 08:47:00 -05:00
1 parent 30375c8413
commit 942b33a252
@@ -0,0 +1,116 @@
+#  • ▌ ▄ ·. ▄▄▄▄·     ▄▄▄ .·▄▄▄▄  ▪  ▄▄▄▄▄      ▄▄▄       ▄▄▄·▄▄▄       
+#  ·██ ▐███▪▐█ ▀█▪    ▀▄.▀·██▪ ██ ██ •██  ▪     ▀▄ █·    ▐█ ▄█▀▄ █·▪    
+#  ▐█ ▌▐▌▐█·▐█▀▀█▄    ▐▀▀▪▄▐█· ▐█▌▐█· ▐█.▪ ▄█▀▄ ▐▀▀▄      ██▀·▐▀▀▄  ▄█▀▄
+#  ██ ██▌▐█▌██▄▪▐█    ▐█▄▄▌██. ██ ▐█▌ ▐█▌·▐█▌.▐▌▐█•█▌    ▐█▪·•▐█•█▌▐█▌.▐▌
+#  ▀▀  █▪▀▀▀·▀▀▀▀      ▀▀▀ ▀▀▀▀▀• ▀▀▀ ▀▀▀  ▀█▄▀▪.▀  ▀    .▀   .▀  ▀ ▀█▄▀▪
+#                Magicbane Emulator Project © 2013 - 2022
+#                           www.magicbane.com
+
+import struct
+import zlib
+
+
+def read_dword(cache_file):
+    data = cache_file.read(4)
+    return struct.unpack('<I', data)[0]
+
+
+def read_qword(cache_file):
+    dwords = struct.unpack('<II', cache_file.read(8))
+    buffer = struct.pack('<II', dwords[1], dwords[0])
+    return struct.unpack('<Q', buffer)[0]
+
+
+def read_resource_data(cache_file, start, length):
+    current_position = cache_file.tell()
+
+    cache_file.seek(start)
+    data = cache_file.read(length)
+
+    cache_file.seek(current_position)
+    return data
+
+
+def load_cache_file(filename):
+    cache_file = open(filename, 'rb')
+    num_resources = read_dword(cache_file)
+    read_dword(cache_file)
+    read_dword(cache_file)
+    read_dword(cache_file)
+
+    resources = []
+    for _ in range(num_resources):
+        resource_id = read_qword(cache_file)
+        resource_offset = read_dword(cache_file)
+        resource_decompressed_len = read_dword(cache_file)
+        resource_compressed_len = read_dword(cache_file)
+
+        resource_data = read_resource_data(
+            cache_file,
+            resource_offset,
+            resource_compressed_len
+        )
+
+        if resource_decompressed_len > resource_compressed_len:
+            resource_data = zlib.decompress(resource_data)
+
+        resources.append([
+            resource_id,
+            resource_data
+        ])
+
+    return resources
+
+
+def write_dword(cache_file, value):
+    data = struct.pack('<I', value)
+    cache_file.write(data)
+
+
+def write_qword(cache_file, value):
+    qword = struct.pack('<Q', value)
+    dwords = [
+        struct.unpack('<I', qword[:4])[0],
+        struct.unpack('<I', qword[4:])[0],
+    ]
+    data = struct.pack('<II', dwords[1], dwords[0])
+    cache_file.write(data)
+
+
+def write_bytes(cache_file, value):
+    cache_file.write(value)
+
+
+def save_cache_file(filename, resources, compress=True):
+    cache_file = open(filename, 'wb')
+
+    num_resources = len(resources)
+
+    last_offset = 0
+    last_offset += 0x10  # header
+    last_offset += num_resources * 0x14  # resource_headers
+
+    data_start = last_offset
+    for resource in resources:
+        resource.append(last_offset)
+        resource.append(len(resource[1]))
+
+        if compress:
+            resource[1] = zlib.compress(resource[1])
+        resource.append(len(resource[1]))
+
+        last_offset += resource[4]
+
+    data_end = last_offset
+    write_dword(cache_file, num_resources)
+    write_dword(cache_file, data_start)
+    write_dword(cache_file, data_end)
+    write_dword(cache_file, 0xffffffff)
+    for resource in resources:
+        write_qword(cache_file, resource[0])
+        write_dword(cache_file, resource[2])
+        write_dword(cache_file, resource[3])
+        write_dword(cache_file, resource[4])
+
+    for resource in resources:
+        write_bytes(cache_file, resource[1])