+ texture extractor

sdgo-texture-extractor.py

@@ -0,0 +1,67 @@
+# SD Gundam Online Texture File Extractor
+# author: RedSuns Chan
+import os
+import pathlib
+
+sdgo_data_path = "/Users/redsunschan/Documents/sdgo-data/txrs/"
+target_path = "/Users/redsunschan/Documents/sdgo-data/txrs/decoded/"
+
+def extract_texture(file_name):
+    f = open(sdgo_data_path + file_name, "rb")
+    file_size = os.path.getsize(sdgo_data_path + file_name)
+    found_type = ""
+    fhex = f.read(file_size).hex().upper()
+
+    # remove zoa header
+    if fhex.startswith("5A4F41544558310000000000"):
+        fhex = fhex.replace("5A4F41544558310000000000", "")
+
+    # detect type
+    if fhex.startswith("424D"):
+        found_type = "bmp"
+    elif fhex.endswith("89504E47"):
+        found_type = "png"
+    elif fhex.endswith("54525545564953494F4E2D5846494C452E00"):
+        found_type = "tga"
+    else: # if cannot find any recognized header, assume the file is dds, may need to improve this logic
+        found_type = "dds"
+    new_file = open(target_path + file_name.replace(".txr", "." + found_type), "wb")
+    new_file.write(bytes.fromhex(fhex))
+    f.close()
+    new_file.close()
+    return found_type
+
+def main():
+    print("sdgo texture extractor")
+    pathlib.Path(target_path).mkdir(parents=True, exist_ok=True)
+    file_list = os.listdir(sdgo_data_path)
+    txr_count = 0
+    tga_count = 0
+    png_count = 0
+    bmp_count = 0
+    dds_count = 0
+    unknown_count = 0
+    file_list.sort()
+    for file_name in file_list:
+        if (file_name.endswith(".txr")):
+            txr_count += 1
+            print("processing " + file_name)
+            file_type = extract_texture(file_name)
+            if file_type == "tga":
+                tga_count += 1
+            elif file_type == "png":
+                png_count += 1
+            elif file_type == "bmp":
+                bmp_count += 1
+            elif file_type == "dds":
+                dds_count += 1
+            else:
+                unknown_count += 1
+    print("converted textures: " + str(txr_count))
+    print("converted tga: " + str(tga_count))
+    print("converted png: " + str(png_count))
+    print("converted bmp: " + str(bmp_count))
+    print("converted dds: " + str(dds_count))
+    print("unknown files: " + str(unknown_count))
+
+main()