RISC OS Open
Safeguarding the past, present and future of RISC OS for everyone
ROOL
Home | News | Downloads | Bugs | Bounties | Forum | Documents | Photos | Contact us
Account

Latest news


Lost for something to do this summer?

Posted by Steve Revill Tue, 12 Jul 2022 12:46:00 GMT

If you’re still circling the A642 for the Wakefield show or snoozing in the deck chair after the MUG midsummer event then unfortunately you missed both of them now. However, you can still catch the highlights of the RISC OS Open talk on YouTube.

Read more...

Posted in Press release, New component, Community | 2 comments

I'm floatin' around in ABC

Posted by Steve Revill Thu, 23 Jun 2022 08:11:00 GMT

Find yourself writing programs in BBC BASIC? Do your programs ever involve floating point maths? Well we’ve got some good news for you!

The Archimedes BASIC Compiler (ABC) 5.00 has been extended with a new option to directly output Vector Floating Point maths instructions which then run on the hardware floating point unit built into many recent Arm processors. This gives a considerable speed increase compared with its predecessor the Floating Point Accelerator which is often emulated now.


Code generation selector

Read more...

Posted in New component, Community | 1 comment

A second great networking opportunity

Posted by Steve Revill Fri, 18 Feb 2022 16:56:00 GMT

Following the success of step 1 of the TCP/IP stack overhaul, we’ve been watching with interest as over one hundred community donations have filled our step 2 bounty pot almost to the brim. Today we’re able to announce that the bounty has been claimed and under way.

Read more...

Posted in New component, Community | 1 comment

Ping! Another one fully cooked

Posted by Steve Revill Fri, 13 Aug 2021 16:21:00 GMT

Portable Network Graphics, with file extension PNG and often pronounced Ping, is a common bitmap graphics format which offers lossless compression for faster transfer over the internet. PNG sits somewhere between Sprite, which is uncompressed, and JPEG used for photos, which uses lossy compression (throwing some information away) to shrink the file even smaller.

What do we gain?

There are two aspects to the new PNG support:

  • Being able to save directly from Paint as a PNG graphic
  • Being able to convert anything ChangeFSI can open and write it out as a PNG graphic

Underneath this there’s a new support module, called CompressPNG, which does the real work and which other applications will be able to make use of.

Application menus

If you are a developer and you’d like to add PNG export to one of your own applications it’s simply a case of making a few system calls from whatever language you prefer to use. It’s very similar to the CompressJPEG module which has shipped since RISC OS 3.60, so much so that Paint has also gained the ability to save out as JPEG via that same approach.

Read more...

Posted in New component, Community | 5 comments

Older posts: 1 2 3 ... 8

Spinner-blue

Social

Follow us on and

ROOL Store

Buy RISC OS Open merchandise here, including SD cards for Raspberry Pi and more.

Donate! Why?

Help ROOL make things happen – please consider donating!

RISC OS IPR

RISC OS is an Open Source operating system owned by RISC OS Developments Ltd and licensed primarily under the Apache 2.0 license.

Categories

  • Miscellaneous (36)
  • New component (32)
  • New documentation (13)
  • New product (45)
  • Press coverage (7)
  • Web site (40)
  • Press release (64)
  • Community (116)

Recent Comments

  • by Sprow (202) on Lost for something to do this summer?
  • by AndrĂ© Timmermans (100) on Lost for something to do this summer?
  • by Bernard Boase (169) on Going round in circles, quickly
  • by Daniel Hanlon (1373) on I'm floatin' around in ABC
  • by Julie Stamp (8365) on A second great networking opportunity

RSS Feeds

  • Articles
  • Comments
  • Trackbacks

Archives

  • July 2022 (2)
  • June 2022 (1)
  • May 2022 (2)
  • February 2022 (1)
  • October 2021 (2)
  • September 2021 (1)
  • August 2021 (1)
  • July 2021 (1)
  • April 2021 (1)
  • February 2021 (1)
  • December 2020 (1)
  • October 2020 (2)
Site design © RISC OS Open Limited 2018 except where indicated
The RISC OS Open Typo theme is distantly based on Typo's 'Azure'

Valid XHTML 1.0  |  Valid CSS

Powered
This site runs on Rails

Hosted by Arachsys