Mesa (master): swrast: do texture sampling/combining in floating point

[Brian Paul]

Module: Mesa
Branch: master
Commit: de2afd8688ceb45013d15be7c6e0995199b80e5a
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=de2afd8688ceb45013d15be7c6e0995199b80e5a

Author: Brian Paul <brianp at vmware.com>
Date:   Sun Mar  8 13:49:57 2009 -0600

swrast: do texture sampling/combining in floating point

The code's cleaner and a step toward supporting float-valued texture sampling.
Some optimizations for common cases can be added and re-enabled...

---

 src/mesa/main/colormac.h          |    9 -
 src/mesa/swrast/s_atifragshader.c |    7 +-
 src/mesa/swrast/s_context.c       |    4 +-
 src/mesa/swrast/s_context.h       |    4 +-
 src/mesa/swrast/s_fragprog.c      |   19 +-
 src/mesa/swrast/s_texcombine.c    |  827 ++++++++++++++-----------------------
 src/mesa/swrast/s_texfilter.c     |  414 ++++++++----------
 src/mesa/tnl/t_vb_program.c       |    7 +-
 8 files changed, 512 insertions(+), 779 deletions(-)

Diff:   http://cgit.freedesktop.org/mesa/mesa/diff/?id=de2afd8688ceb45013d15be7c6e0995199b80e5a