I have to implement the scan line compression on "Windows" platform to create a PRC file which, in turn, will be decompressed and displayed on Palm platform.
I'm familiar with RLE, but I have no idea on the 'scan line compression'. I code-dumped a compressed bitmap, but I couldn't decode it at all. Do you happen to know what the scan line compression is? Jason Davidson <[EMAIL PROTECTED]> wrote in message news:[EMAIL PROTECTED] RLE is supported under 3.5 ( along with scan line) this is the compression technique that is implemented. Note: there is no absolute mode in their RLE compression so be careful. Your bitmaps may get bigger using compression. Prior to 3.5 I believe the only method of compression was scan line unless I am not mistaken. TO use RLE compression set the compressed flag bit and use the correct tag for compression type I believe it is 1 or 2 for RLE and the just store the bitmap data RLE compressed. Be careful with the Row Bytes they can get tricky. Jason D -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Kijang Jung Sent: Sunday, July 23, 2000 1:39 PM To: Palm Developer Forum Subject: Algorithm or format of the compressed bitmap I'm writing a Windows application to generate a PRC file which contains a series of bitmap resources. I can create a PRC containing uncompressed bitmaps. However, I like to create compressed bitmaps to save the transmission time. Where can I get some document on the compressed bitmap format/algorithm? Is RLE(run-length encoding) supported on Palm OS 3.5+? What's encoding/decoding algorithm for OS 3.0 ~ 3.3? Thanks in advance, Kijang Jung -- For information on using the Palm Developer Forums, or to unsubscribe, please see http://www.palmos.com/dev/tech/support/forums/ -- For information on using the ACCESS Developer Forums, or to unsubscribe, please see http://www.access-company.com/developers/forums/
