Macromedia Flash SWF / Scaleform GFX

SWF, GFX

• Format Type : Animation / Container
  
• Endian Order : Little Endian
  

Format Specifications

// SWF/GFX file format

// little endian

// header
3 bytes (char) - signature  // "FWS" - uncompressed *.SWF file
                            // "CWS" - compressed *.SWF file (SWF 6 and later only)
                            // "ZWS" - LZMA compressed *.SWF file (SWF 13 and later only)
                            // "GFX" - same as FWS, but used mostly in Scaleform middleware files (*.GFX)
                            // "CFX" - same as CWS, but used mostly in Scaleform middleware files (*.GFX)
1 byte (uint8) - version  //  e.g. 0x06 for version 6
                                   0x0F for version 15
                                   0x20 for version 32
4 bytes (uint32) - total file size in bytes
x bytes - frame size
2 bytes (uint16) - frame rate
2 bytes (uint16) - frame count

// tags
num_of_tags *
{
   2 bytes (uint16) - tag type and length   // upper 10 bits - tag type
                                            // lower 6 bits - tag length
   x bytes - tag data
}

Full file format can be found here.

MultiEx BMS Script

Not written yet.

Notes and Comments

• Files can be compressed with ZLIB compression (CWS signature) or with LZMA compression (ZWS signature).
• Scaleform GFX files share file format with the SWF Flash movies.

Games

List of games using this format:

• Batman: Arkham Asylum (PC)
• Mafia 3 (*.GFX) (PC) (signature: "GFX") (version: 15)
• The Henry Stickmin Collection (*.SWF) (signature: "CWS") (version: 32)

Compatible Programs

• Adobe AIR
• Flash Decompiler Trillix
• Flash Player
• JPEXS Free Flash Decompiler
• Sothink SWF Decompiler