On 03/10/2016 03:09 PM, Dylan Baker wrote: > Quoting Marek Olšák (2016-03-10 06:57:57) >> On Thu, Mar 10, 2016 at 3:30 PM, tournier.elie <tournier.e...@gmail.com> >> wrote: >>> First, thank you all for your answers. >>> >>> So if I summarize what was said, we need >>> Ian: >>> - add >>> - negate >>> - absolute value >>> - multiply >>> - reciprocal >>> - convert to single precision >>> - convert from single precision >>> Roland: >>> - sqrt >>> - comparaison (< / == / >) >>> - floor/ceil >>> I will contact Pat Brown (His name appear in the contact field in [1]) to >>> know if we need the function below for implement gpu_shader_fp64. >>> - pow >>> - exp >>> - log >>> >>> About the license >>> >>> Like I mentioned in the project description, there are quite a few >>> existing C implementations of these functions. Finding one of those >>> that you can understand and that has a compatible license is probably >>> the best place to start. >>> >>> Main Mesa code is under MIT license. >>> If I chose to use a GNU GPL license file like Linux kernel [3], my code must >>> be under GNU GPL and probably all the project too. Am I right? >>> >>> [1] https://www.opengl.org/registry/specs/ARB/gpu_shader_fp64.txt >>> [2] http://www.mesa3d.org/license.html >>> [3] >>> https://github.com/torvalds/linux/blob/097f70b3c4d84ffccca15195bdfde3a37c0a7c0f/arch/arm/nwfpe/softfloat.c >> >> You can't use GNU GPL for this project. >> >> The kernel as a whole is licensed under GNU GPL, but some source files >> aren't. The file you linked doesn't mention GNU GPL. Somebody needs to >> verify that the file you linked can be legally re-licensed under the >> MIT license. If not, I think you have to forget the contents of the >> file immediately, but I'm not a lawyer. >> >> Marek >> _______________________________________________ >> mesa-dev mailing list >> mesa-dev@lists.freedesktop.org >> https://lists.freedesktop.org/mailman/listinfo/mesa-dev > > Most BSD style licenses are legally compatible, as long as none of the > developers object. One of the BSD kernels should have a softfloat > implementation that would be license compatible.
Yes, and there are a couple C compilers that have compatible licenses. Portable C Compiler (PCC) being one. LLVM might also support some devices that lack floating-point hardware. > _______________________________________________ > mesa-dev mailing list > mesa-dev@lists.freedesktop.org > https://lists.freedesktop.org/mailman/listinfo/mesa-dev >
signature.asc
Description: OpenPGP digital signature
_______________________________________________ mesa-dev mailing list mesa-dev@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/mesa-dev
