Commit Graph

16 Commits

Author SHA1 Message Date
Simon McVittie 5909b9a1cf Isolate the Altivec code so non-Altivec PPC targets can use the same binary.
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!).
2018-05-12 14:14:47 -04:00
Edward Betts fe42b8653d Correct spelling mistakes. 2017-11-22 01:40:20 -06:00
Zack Middleton 59b1262b82 Fix floating point precision loss in renderer [part 2]
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.
2017-08-03 00:14:22 -05:00
Zack Middleton 30fdd88c9f Fix floating point precision loss in renderer [part 1]
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.
2017-08-02 23:44:44 -05:00
SmileTheory 2349ef038e OpenGL2: Don't interleave texCoords and lightCoords in tess. 2016-11-25 01:17:46 -08:00
SmileTheory aa79738c50 OpenGL2: Store vertex colors and hdr lightmaps/lightgrid as RGBA16. 2016-10-11 03:28:20 -07:00
SmileTheory dfbaf50324 OpenGL2: Store normals/tangents as int16_t[4]. 2016-09-06 00:57:15 -07:00
Victor Roemer 398dea397c Fix Makefile for OSX
Bump base SDK from 10.5 -> 10.7
Just use the builtin __APPLE__
2016-06-12 17:17:33 -04:00
SmileTheory 943259f6b4 OpenGL2: Support half floats for texcoords and vertex colors. 2014-11-03 19:10:35 -08:00
SmileTheory 84206c8598 OpenGL2: Vertex array object support. 2014-10-14 01:50:44 -07:00
Tim Angus 6665ea4a49 Fix renderergl2 warnings 2014-09-01 11:35:49 +01:00
SmileTheory f6f3a19f73 OpenGL2: Support GL_ARB_vertex_type_2_10_10_10_rev for normals/tangents/lightdirs 2013-12-09 17:33:54 -08:00
SmileTheory 6e5f8cc918 OpenGL2: Calculate bitangent in shader, and store normal/tangent as normalized byte arrays. 2013-11-12 19:21:51 -08:00
SmileTheory 08fcecc829 OpenGL2: Clean up texmod calculations, and improve vertex animation handling. 2013-10-14 01:55:54 -07:00
/dev/humancontroller 2d54a12615 fix some "\n"-related stuff
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)
2013-05-30 15:32:44 -05:00
Tim Angus f6fb9eb602 renderer -> renderergl1, rend2 -> renderergl2 2013-02-15 23:46:37 +00:00
Renamed from code/rend2/tr_shade_calc.c (Browse further)