SDL and GX?

Does SDL use GX for rendering? i dont want to continue work on my game engine to find it doesnt use gx since the engine is already starting to push my pc with rendering a few images, not sure if the gpu is being used to render hardware surfaces dont make any difference to speed so???

Yes SDL uses GX.

do you have any idea why hardware surfaces dont improve performance on my win7 box, do i need to intergrate opengl

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SteelSLasher
do you have any idea why hardware surfaces dont improve performance on my win7 box, do i need to intergrate opengl

That depends, what graphics card do you have on the machine?

geforce 6600 256mb ram

While this is not the place for PC SDL questions, I do have a few tips for you.

First, make sure you really got hardware surfaces. Some configurations only give you software surfaces even if you ask for hardware (I think 8 bit screens are always software on windows)
You can check the SDL_Surface->flags for that: [www.libsdl.org]

Next, make sure you do hardware->hardware blits on the same type of surfaces.
32bit hw -> 32bit hw should be fast.
16bit hw -> 32bit hw might fall back to slow blitting
32bit sw -> 32bit hw is slower then 32bit sw -> 32bit sw

And last but not least, direct pixel acces on hwsurfaces is slower then on swsurfaces!

Quote
Daid
While this is not the place for PC SDL questions, I do have a few tips for you.

First, make sure you really got hardware surfaces. Some configurations only give you software surfaces even if you ask for hardware (I think 8 bit screens are always software on windows)
You can check the SDL_Surface->flags for that: [www.libsdl.org]

Next, make sure you do hardware->hardware blits on the same type of surfaces.
32bit hw -> 32bit hw should be fast.
16bit hw -> 32bit hw might fall back to slow blitting
32bit sw -> 32bit hw is slower then 32bit sw -> 32bit sw

And last but not least, direct pixel acces on hwsurfaces is slower then on swsurfaces!

seems like my pc just wont let me without implementing opengl,

also, are there differences between sdlwii and sdl in terms of functions