Ian Romanick wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > Brian Paul wrote: >> Ian Romanick wrote: >>> -----BEGIN PGP SIGNED MESSAGE----- >>> Hash: SHA1 >>> >>> Brian Paul wrote: >>>> I'd like to release Mesa 6.5.3 pretty soon (to be considered a >>>> development release) then follow up fairly quickly with a Mesa 7.0 >>>> release. The jump to 7.0 would indicate the jump to OpenGL 2.x API >>>> support. >>> Woohoo! >>> >>>> I might cut a pre-release candidate today... >>> Will either of these releases include the glsl-compiler-1 work? >> Yes, that branch was merged to master a while ago. > > D'oh! How did I miss that? Must have been asleep at the keys... > > Anyway, I started looking at the code a bit this morning. Do you have > any advice for where a person might insert a processor-specific compiler > back-end? It looks like I could just hook in at _mesa_execute_program, > but I'm wondering if there's a better place.
Well, in device drivers that generate a specific GPU program from Mesa's generic GPU rograms, this usually happens during state validation. Alternately, the driver can use the ctx->Driver.ProgramStringNotify() hook which is called after the text program string has been compiled into instructions (though, I see I'm not calling that from the GLSL compiler - oops). The decision there is whether you want to translate the program when it's compiled, or when it's first used. But if you want to do something driver-independent, you probably can't use ProgramStringNotify() because you might collide with the driver's use of it. I'm thinking we might need to implement a callback manager so that any number of modules could register a callback to get informed of newly compiled programs. The other thing is program/shader linking. Linking often involves changing register indexes. The simplest thing to do there is to regenerate the derived programs (from scratch) after linking. A more sophisticated approach would be to pass the linking information to the driver/translator so it could do the relocations, etc. I'll have to think about this a bit more. -Brian ------------------------------------------------------------------------- This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/ _______________________________________________ Mesa3d-dev mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/mesa3d-dev
