diff options
| -rw-r--r-- | tests/spec/arb_gpu_shader_fp64/execution/built-in-functions/fs-frexp-dvec4-only-exponent.shader_test | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/tests/spec/arb_gpu_shader_fp64/execution/built-in-functions/fs-frexp-dvec4-only-exponent.shader_test b/tests/spec/arb_gpu_shader_fp64/execution/built-in-functions/fs-frexp-dvec4-only-exponent.shader_test index d7dc64032..c4a7555ff 100644 --- a/tests/spec/arb_gpu_shader_fp64/execution/built-in-functions/fs-frexp-dvec4-only-exponent.shader_test +++ b/tests/spec/arb_gpu_shader_fp64/execution/built-in-functions/fs-frexp-dvec4-only-exponent.shader_test @@ -31,7 +31,18 @@ clear color 0 0 0 1 clear uniform dvec4 u_in 2 3 4 9 -uniform ivec4 u_exponent 1 1 2 3 + +# The function frexp() splits each single-precision floating-point number in +# <x> into a binary significand, a floating-point number in the range [0.5, +# 1.0), and an integral exponent of two, such that: +# +# x = significand * 2 ^ exponent +# +# 2 = 0.5 * 2^2 +# 3 = 0.75 * 2^2 +# 4 = 0.5 * 2^3 +# 9 = 0.5625 * 2^4 +uniform ivec4 u_exponent 2 2 3 4 draw rect -1 -1 2 2 probe all rgba 0 1 0 1 |