Being worked on this past summer were improvements to the open-source ATI R300 driver when it comes to GLSL compiler optimizations. This work was done by Tom Stellar as part of Google's Summer of Code for student developers. While we reported on some of the R300 compiler improvements back in June, there hasn't been too much more information to pass along, especially as the summer is now over. However, there is now a new branch by Stellar containing some additional optimizations.

Pushed to Tom Stellar's Mesa branch are R300 compiler optimization improvements for handling of flow control instructions in data-flow analysis, more aggressive use of pre-subtact operations, and more scheduler improvements. According to Tom, this has resulted in a 10% decrease on average in shader program size for his test cases.

Details and the Git tree are mentioned on his blog. Now to hopefully see these optimizations merged into Mesa master for the Mesa 7.10 release...

Оригинал

http://www.phoronix.com/scan.php?page=news_item&px=ODc2NA

PS Есть желающие собрать и поделиться результами тестирования?

Собственно имею Radeon 4850 до этого стояла Radeon 3650 уже пол года где то собираю месу с гита и все это время не работает этот вид сжатия текстур libtxc-dxtn библиотека установленна. Как я понял после установки этой библиотеке меса начинает рапортовать о поддержки данного вида сжатия текстур и игры требующие его начинают запускаться, нотекстуры не отображаются. Ворпос: я делаю чтот не так или косяк в месе и если так может кто знает его вообще ктонибуть собирается починить?

r600g драйвер влили в основную ветку месы

[quote=«Новость на Phoronix»] Those owners of ATI Radeon HD 2000, 3000, and 4000 series (R600/700) graphics cards not only have a reason to celebrate today over the voltage adjustment support to improve their GPU power management, but there's another reason too. The Radeon R600 Gallium3D driver known as «R600g» has been merged to Mesa's mainline «master» code-base.

The R600g driver has been in development for some months largely by Red Hat's Jerome Glisse and it supports both R600 and R700 generation GPUs. The driver isn't yet in a state ready for prime-time action nor is it even ready for use by most die-hard Linux enthusiasts just looking to test the code — it still only can even run glxgears with a few «hacks» — but it's nearing a working state and bringing this R600g driver into the mainline code-base will help in nearing this milestone.

There is this Git commit that adds thousands of lines of code to Mesa in the form of the R600g driver (including the winsys) and a few other related commits this afternoon. Jerome Glisse has announced this merge to master milestone on the Mesa mailing list.

With this R600/700 Gallium3D driver now in the mainline code-base, it will appear in the Mesa 7.9 release later this summer, but the classic R600 Mesa driver is still expected to be the default choice until this Gallium3D driver has caught up to speed and has reached a parity with the older open-source driver. Meanwhile, the R300g driver that supports up through the ATI R500 series graphics cards atop Gallium3D continues to mature and pick-up random bits of new support. It's still a possibility that the R300g driver will become the default in this next Mesa release. [/quote]

http://www.phoronix.com/scan.php?page=news_item&px=ODI5NQ

Сам комит: http://cgit.freedesktop.org/mesa/mesa/commit/?id=72128962d640846472c1b0dc22cf...

Можно ли создать виртуальный жеский диск для VirtualBox'а из реального раздела и как?

2nd можно ли в вбоксе использовать реальный раздел?