MegaPaint BLD
From Just Solve the File Format Problem
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* .LIB - Megapaint symbols library | * .LIB - Megapaint symbols library | ||
* .FNT - MegaPaint Font | * .FNT - MegaPaint Font | ||
| + | |||
| + | == Format details == | ||
| + | BLD format: | ||
| + | {| class="wikitable" | ||
| + | ! Offset !! Type !! Details | ||
| + | |- | ||
| + | |0 || signed int16 BE || Code for the image width. Actual width is 1 + the absolute value of this field. If negative, image is compressed. | ||
| + | |- | ||
| + | |2 || signed(?) int16 BE || Code for the image height. Actual height is 1 + the value of this field. | ||
| + | |- | ||
| + | |4 || bytes || The pixel data. After decompression if necessary (see below), the format is 1 bit/pixel, white-is-zero. Rows are apparently padded to the next byte boundary, though the software might only write widths that are a multiple of 8. | ||
| + | |} | ||
| + | |||
| + | === Decompression algorithm === | ||
| + | {| class="wikitable" | ||
| + | ! Code byte (N) !! Instructions | ||
| + | |- | ||
| + | |N=0 or N=255 || Read the next byte (C). Emit C+1 bytes of value N. | ||
| + | |- | ||
| + | |Any other || Emit 1 byte of value N. | ||
| + | |} | ||
== Software == | == Software == | ||
Revision as of 14:57, 27 August 2018
MegaPaint BLD is the main native raster graphics format of MegaPaint, a graphics editor developed by TommySoftware. There were editions of MegaPaint for Atari ST, MS-DOS, and Windows. Some were released as shareware. The best information about MegaPaint might be in German.
In addition to raster graphics, MegaPaint apparently has some sort of support for vector graphics.
Contents |
Related formats
Other MegaPaint formats include:
- .PAT - MegaPaint Pattern
- .VEK - MegaPaint Vector format
- .LIB - Megapaint symbols library
- .FNT - MegaPaint Font
Format details
BLD format:
| Offset | Type | Details |
|---|---|---|
| 0 | signed int16 BE | Code for the image width. Actual width is 1 + the absolute value of this field. If negative, image is compressed. |
| 2 | signed(?) int16 BE | Code for the image height. Actual height is 1 + the value of this field. |
| 4 | bytes | The pixel data. After decompression if necessary (see below), the format is 1 bit/pixel, white-is-zero. Rows are apparently padded to the next byte boundary, though the software might only write widths that are a multiple of 8. |
Decompression algorithm
| Code byte (N) | Instructions |
|---|---|
| N=0 or N=255 | Read the next byte (C). Emit C+1 bytes of value N. |
| Any other | Emit 1 byte of value N. |
Software
- XnView
- Konvertor
- Rest7 Online Converter
- MegaPaint
- http://cd.textfiles.com/pslmonthly25/words/dos/gr_draw/megapnt.exe - MegaPaint PC Version 1.10; English; shareware
- Weird Science Clip Art CD → UTILITY/PC/MEGAPANT/ - Another copy of PC v1.10
- http://cd.textfiles.com/crawlycrypt2/crm_demo/megapait/ - MegaPaint Professional Demo v3.00; Atari ST; German
- http://cd.textfiles.com/suzybatari1/picmanip/pic_m2r/mpntdemo/ - MegaPaint Professional Demo 4.00; Atari ST; English
Sample files
- http://cd.textfiles.com/pslmonthly25/words/dos/gr_draw/megapnt.exe (Self-extracting ZIP) → PICTURES/*.BLD
- http://cd.textfiles.com/suzybatari1/picmanip/pic_m2r/mpntdemo/pictures/ → *.bld
Links
- German Wikipedia: TommySoftware
- MegaPaint file format, from the Atari Forum Wiki
