Puppy Linux Discussion Forum Forum Index Puppy Linux Discussion Forum
Puppy HOME page : puppylinux.com
"THE" alternative forum : puppylinux.info
 
 FAQFAQ   SearchSearch   MemberlistMemberlist   UsergroupsUsergroups   RegisterRegister 
 ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in 

The time now is Wed 02 Sep 2015, 02:42
All times are UTC - 4
 Forum index » Advanced Topics » Additional Software (PETs, n' stuff)
CorelDraw Export (BMP to .rle)
Post new topic   Reply to topic View previous topic :: View next topic
Page 1 of 1 [3 Posts]  
Author Message
GarySmith

Joined: 17 Oct 2014
Posts: 104

PostPosted: Sat 25 Apr 2015, 06:21    Post subject:  CorelDraw Export (BMP to .rle)  

CorelDRAW and Graphics Users

Bumped into a file extension issue that I'd heard about years back though I've forgotten context. BMP and RLE are associated file name extensions when exporting a graphic file from CorelDRAW's Paint program. I'm also seeing this with JPG export to .tff (I think those last two letters).

This was stunning at first but remembered the second associated extension letters for .rle and simply changed those letters to .BMP and they seem to work just fine.

Will check back as I learn more.

Gary
____________


The BMP RLE 8 Compression Algorithm
http://www.fileformat.info/format/bmp/corion-rle8.htm

Share on stumbleuponShare on redditShare on twitterShare on tumblrMore Sharing Services

Original Documentation

--- BMP RLE_8 compression

The BMP can be compressed in two modes, absolute mode and RLE mode. Both modes can occur anywhere in a single bitmap.

The RLE mode is a simple RLE mechanism, the first byte contains the
count, the second byte the pixel to be replicatet. If the count byte
is 0, the second byte is a special, like EOL or delta.

In absolute mode, the second byte contains the number of bytes to be copied litteraly. Each absolute run must be word-aligned that means you will may have to add an aditional padding byte which is not included in the count. After an absolute run, RLE compression continues.
Back to top
View user's profile Send private message 
disciple

Joined: 20 May 2006
Posts: 6559
Location: Auckland, New Zealand

PostPosted: Wed 29 Apr 2015, 02:42    Post subject:  

How do I write a bitmap with rle in linux?
It sounds like random parts of the bitmap can be rle (rather than the whole image having to be rle). So it would be possible to optimise the size of any given bitmap....

Quote:
I'm also seeing this with JPG export to .tff (I think those last two letters)

That doesn't make any sense.

_________________
Classic Puppy quotes
-
root: n. the superuser or administrator account that has complete control over everything in the machine. Running as root is a taonga of Puppy Linux users.
Back to top
View user's profile Send private message 
GarySmith

Joined: 17 Oct 2014
Posts: 104

PostPosted: Thu 30 Apr 2015, 15:34    Post subject:  

disciple wrote:
How do I write a bitmap with rle in linux?
It sounds like random parts of the bitmap can be rle (rather than the whole image having to be rle). So it would be possible to optimise the size of any given bitmap....
Quote:
I'm also seeing this with JPG export to .tff (I think those last two letters)
That doesn't make any sense.


These different file extensions are related to the graphic files and Puppy Linux must be exporting them with the new file extension. At first a shocker but a long time ago heard that rle was related to the bmp file extension.

Probably got the JPG export change letters incorrect but must be similar issue. Both of these files work as expected and I only changed the extension manually.

Still, it startled on exporting at first.

Gary
______
Back to top
View user's profile Send private message 
Display posts from previous:   Sort by:   
Page 1 of 1 [3 Posts]  
Post new topic   Reply to topic View previous topic :: View next topic
 Forum index » Advanced Topics » Additional Software (PETs, n' stuff)
Jump to:  

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You can download files in this forum


Powered by phpBB © 2001, 2005 phpBB Group
[ Time: 0.0878s ][ Queries: 11 (0.0279s) ][ GZIP on ]