tgsi: Note that LOG and EXP are approximations.

2009-03-10 10:06:19 +01:00
parent 5d0f69e33d
commit bbf84cca57
1 changed files with 2 additions and 2 deletions
@@ -48,7 +48,7 @@ TGSI Instruction Specification
  dst.w = 1.0 / sqrt(abs(src.x))


-1.1.6  EXP - Exponential Base 2
+1.1.6  EXP - Approximate Exponential Base 2

  dst.x = pow(2.0, floor(src.x))
  dst.y = src.x - floor(src.x)
@@ -56,7 +56,7 @@ TGSI Instruction Specification
  dst.w = 1.0


-1.1.7  LOG - Logarithm Base 2
+1.1.7  LOG - Approximate Logarithm Base 2

  dst.x = floor(lg2(abs(src.x)))
  dst.y = abs(src.x) / pow(2.0, floor(lg2(abs(src.x))))