Hardware acceleration.

What functions use hardware acceleration? Is PgDrawLine among them? I am
asking because I have noticed acceleration only in Blit
and only with Radeon driver.

I tried S3,TNT,Radeon drivers on RTOS 6.1

Which functions use hardware acceleration depends on the
graphics chipset used and its corresponding driver. The
generic drivers - devg-vesabios.so, devg-svga.so, and devg-vga.so
have no acceleration. All others x86 drivers have varying levels of
acceleration, but do include basic line, rectangle, and blit
functions. What are you doing to test whether there is acceleration?
What chipsets do you have - an older S3 chipset acclerated may appear
slower than an accelerated Radeon chipset.

Erick.


Alex Timofeev <vchc@mail.ru> wrote:

What functions use hardware acceleration? Is PgDrawLine among them? I am
asking because I have noticed acceleration only in Blit
and only with Radeon driver.

I tried S3,TNT,Radeon drivers on RTOS 6.1

I tried to get accelerated line drawing on Radeon 7200. With
hardware acceleration, time for draw line isn’t depend on its
size, but drawing line from 1,1 to 1000,1 takes more time
(proportional line size) then drawing line from 1,1 to 100,1.
Can you explain this?

Anyway thanks for help.

Hardware Support Account <hw@qnx.com> ÓÏÏÂÝÉÌ × ÎÏ×ÏÓÔÑÈ
ÓÌÅÄÕÀÝÅÅ:a538on$1ol$2@nntp.qnx.com

Which functions use hardware acceleration depends on the
graphics chipset used and its corresponding driver. The
generic drivers - devg-vesabios.so, devg-svga.so, and devg-vga.so
have no acceleration. All others x86 drivers have varying levels of
acceleration, but do include basic line, rectangle, and blit
functions. What are you doing to test whether there is acceleration?
What chipsets do you have - an older S3 chipset acclerated may appear
slower than an accelerated Radeon chipset.

Erick.