MGV

From MSX Game Library

Revision as of 21:43, 30 March 2024 by Aoineko (talk | contribs)

MGLV is a video format for MSXgl.

Format

Header

Offset Size Desc. Value
0x0000 4 Signature "MGLV"
0x0004 1 Flag
7  6  5  4  3  2  1  0
│  │  │  │  └──┴──┴──┴── File format version (0-15)
│  │  │  └────────────── 
│  │  └───────────────── 
│  └──────────────────── 
└─────────────────────── Include video format
(0x0005) 1 Video format - Width (1-256)
7  6  5  4  3  2  1  0
│  │  │  │  └──┴──┴──┴── Screen mode
│  │  └──┴────────────── Bit per pixel (0: 1-bit, 1: 2-bit, 2: 4-bit, 3: 8-bit)
│  └──────────────────── 
└─────────────────────── 
(0x0006) 1 Video format - Width (1-256)
(0x0007) 1 Video format - Height (1-256)

Commands

Cmd Options Desc.
0x00 End of data
0x01 End of frame
0x02 End of segment (increment segment index and reset data pointer)
0x03
0x04 nn Skip nn+1 bytes (1-256)
0x05 nnnn Skip nnnn bytes (1-65536)
0x06 nn,vv Fill nn bytes (1-256) with vv value
0x07 nnnn,vv Fill nnnn bytes (1-65536) with vv value
0x08 nn,vv[nn] Copy nn bytes (1-256) from vv[nn] data table
0x09 nnnn,vv[nnnn] Copy nnnn bytes (1-65536) from vv[nnnn] data table
0x0A
0x0B
0x0C vv Fill full frame with vv value
0x0D
0x0E
0x0F

Extension

.MGLV (for Windows/Linux) or .MGV (for MSX-DOS)