SAGA/Datafiles/Animation
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SAGA_ANIMATION_HEADER
Animation resources begin with the following header:
| Type | Order | Name | Description |
| INT16 | LE | magic | Magic number ( 0x68 ) |
| INT16 | LE | animation_w | Logical screen width for animation |
| INT16 | LE | animation_h | Logical screen height for animation |
| BYTE | - | ? | ? (Appears to always be 0 ) |
| BYTE | - | ? | ? (Appears to always be 0 ) |
| BYTE | - | frame_count | Number of frames in animation ( sometimes off ) |
| BYTE | - | control_code | Control code; 0 = play once, 1 = loop, >1 ? |
| BYTE | - | ? | ? ( Varies ) |
| BYTE | - | ? | ? ( Varies ) |
The entirety of an animation resource is actually a RLE codestream, but for sake of simplicity the header and individual frame headers are treated here separately.
SAGA_FRAME_HEADER
Immediately following the SAGA_ANIMATION_HEADER is an RLE marker indicating that the first frame header follows after.
| Type | Order | Name | Description |
| BYTE | - | mark_byte | RLE marker for frame header (0x15) |
| Type | Order | Name | Description |
| INT16 | BE | x_start_offset | Offset from x_position at which to begin decoding |
| BYTE | - | y_start_offset | Offset from y_position at which to begin decoding |
| BYTE | - | pad | Structure padding? (Always 0) |
| INT16 | BE | x_position | Frame x position on logical screen |
| INT16 | BE | y_position | Frame y position on logical screen |
| INT16 | BE | width | Frame width |
| INT16 | BE | height | Frame height |
The SAGA_FRAME_HEADER structure is unusual in that its members are big endian.
The RLE encoded frame data follows after; followed in turn by additional frames if present. See the ITE_RLE3 compression format.