Hash :
32e97315
Author :
Date :
2011-08-24T01:03:11
Emulate certain buil-in functions to work around driver bugs. This is implemented by adding a new compile option SH_EMULATE_BUILT_IN_FUNCTIONS. The emulated functions are names as webgl_originalName_emu so there will never be naming conflicts. At the moment only three functions are emulated: normalize, abs, sign. Also, the compile option will emulate all three. However, the mechanism to emulate only a selected subset is also imeplemented. It can be turned on easily. ANGLEBUG=196 TEST=with this option, the failed test with abs.frag passes. Review URL: http://codereview.appspot.com/4916043 git-svn-id: https://angleproject.googlecode.com/svn/trunk@738 736b8ea6-26fd-11df-bfd4-992fa37f6226