On Mon, 2003-09-29 at 19:53, Alex Deucher wrote: > --- Michel Dnzer <[EMAIL PROTECTED]> wrote: > > On Sat, 2003-09-27 at 23:10, Alex Deucher wrote: > > > --- Michel Dnzer <[EMAIL PROTECTED]> wrote: > > > > > > > > As a bonus, once you've solved all the issues involved, adding > > some > > > > RENDER extension acceleration should be trivial. :) I played with > > > > that a > > > > little but never found the time to get it very far. > > > > > > Do you have any code (however broken) I could look at? > > > > Sure, http://penguinppc.org/~daenzer/DRI/radeon_render.c . It's for > > the > > R100 3D engine, and it doesn't render anything yet, or at least not > > anything like what it's supposed to. :\ > > I've briefly looked over the code. I've got a few questions. > How does this take care of the state sharing issue (2D and 3D) that Ian > brought up yesterday?
Not at all. I was going to worry about that once the rest worked more or less as expected. > SubsequentCPUToScreenTexture() looks like it sends the packets for > creating a quad? Yes, that's the idea. > there are several places where you have code that looks like this: > BEGIN_RING( 8 ); > > OUT_RING_REG( RADEON_PP_TXFORMAT_0, RADEON_TXFORMAT_RGBA8888 > | RADEON_TXFORMAT_ALPHA_IN_MAP > | RADEON_TXFORMAT_NON_POWER2 > | RADEON_TXFORMAT_ALPHA_MASK_ENABLE ); > OUT_RING_REG( RADEON_PP_TXOFFSET_0, offset ); > OUT_RING_REG( RADEON_PP_TXPITCH_0, pitch - 32 ); > OUT_RING_REG( RADEON_PP_TXSIZE_0, (width-1) | ((height-1) << 16) ); > > ADVANCE_RING(); > > Why did you use 8 rather than 4? it seems to me you are only issuing 4 > commands, or is the code just in an incomplete/testing state? BEGIN_RING() takes the number of 32 bit words you're going to write to the ring. OUT_RING() writes one word to the ring. A register write consists of two words, the first one basically denotes the register address and the second one the value to be written to it. OUT_RING_REG() is a convenience macro for that. -- Earthling Michel Dänzer \ Debian (powerpc), XFree86 and DRI developer Software libre enthusiast \ http://svcs.affero.net/rm.php?r=daenzer ------------------------------------------------------- This sf.net email is sponsored by:ThinkGeek Welcome to geek heaven. http://thinkgeek.com/sf _______________________________________________ Dri-devel mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/dri-devel
