Moved all the code using Altivec intrinsics to separate files. This
means we can optionally use GCC's -maltivec on just these files, which
are chosen at runtime if the CPU supports Altivec, and compile the rest
without it, making a single binary that has Altivec optimizations but
can still work on G3.
Unlike SSE and similar extensions on x86, there does not seem to be
a way to enable conditional, targeted use of Altivec based on runtime
detection (which is what ioquake3 wants to do) without also giving the
compiler permission to use Altivec in code generation; so to not crash
on CPUs that do not implement Altivec, we'll have to turn it off
altogether, except in translation units that are only entered when
runtime Altivec detection is successful.
This has been tested on Linux PPC (on an Altivec-enabled CPU),
but we may need further work after testing trickles out to other
PowerPC devices and ancient Mac OS X builds.
I did a little work on this patch, but the majority of the effort belongs
to Simon McVittie (thanks!).
Fix floatTime using float precision instead of double using GCC.
Fix R_BindAnimatedImage to be in sync with function table.
Fix vertexDeform bulge, vertexDeform normals, noise wave function
at high level time.
Revert unnecessary float -> double conversions.
Patch for https://bugzilla.icculus.org/show_bug.cgi?id=5931 by
Eugene C. from 2013 plus recent fix for tcMod rotate.
I merged the changes into the OpenGL2 renderer though the fix for
tcMod turb doesn't translate.
Appling the diff to renderergl2 mostly worked.
Had to change GLimp_HaveExtension to use GL_EXTENTIONS
directly because Elite Forces GL2 requires an extension that didn't fit in (the smaller than Q3)
glConfig.extensions_string.
Had to set ambientLight for RF_FULLBRIGHT, GL2 doesn't use ambientLightInt.
Made the RF_FORCE_ENT_ALPHA code change pStage->stateBits because the stateBits
are read a lot, whereas in GL1 it's done as an expression and passed to GL_State.
Copied from Spearmint.
There are a few issues; holodeck doors are missing and parts of light grid are black (???).
add missing "\n"s to some Printf()-like calls (in Rend2)
drop erroneous "\n"s from some Error()-like calls (in Rend2)
drop erroneous "\n" from a Com_Error() call (in vm_sparc.c)
