[Warzone2100-commits] [Warzone2100/warzone2100] 049e9e: gfx: Don't use fixed pipeline for alpha test.

[Cyp <cy...@wz...>]

  Branch: refs/heads/master
  Home:   https://github.com/Warzone2100/warzone2100
  Commit: 049e9edaaa1a8fe6e4a9cfe8ba97987a9c3d1bbc
      https://github.com/Warzone2100/warzone2100/commit/049e9edaaa1a8fe6e4a9cfe8ba97987a9c3d1bbc
  Author: Cyp <cy...@wz...>
  Date:   2016-09-03 (Sat, 03 Sep 2016)

  Changed paths:
    M data/base/shaders/button.frag
    M data/base/shaders/nolight.frag
    M data/base/shaders/tcmask.frag
    M lib/ivis_opengl/piedraw.cpp
    M lib/ivis_opengl/piestate.cpp
    M lib/ivis_opengl/piestate.h

  Log Message:
  -----------
  gfx: Don't use fixed pipeline for alpha test.

Also, don't read back from gl_FragColor.

Thanks to vlj for debugging.

Probably fixes ticket:4455 and ticket:4462. May or may not fix any other driver crashes.