[Mesa-dev] [PATCH 11/22] compiler/spirv: implement 16-bit asin
Iago Toral Quiroga
itoral at igalia.com
Thu May 17 08:46:31 UTC 2018
---
src/compiler/spirv/vtn_glsl450.c | 20 +++++++++++++-------
1 file changed, 13 insertions(+), 7 deletions(-)
diff --git a/src/compiler/spirv/vtn_glsl450.c b/src/compiler/spirv/vtn_glsl450.c
index ffe12a71818..845e5a9e517 100644
--- a/src/compiler/spirv/vtn_glsl450.c
+++ b/src/compiler/spirv/vtn_glsl450.c
@@ -217,19 +217,25 @@ build_log(nir_builder *b, nir_ssa_def *x)
* in each case.
*/
static nir_ssa_def *
-build_asin(nir_builder *b, nir_ssa_def *x, float p0, float p1)
+build_asin(nir_builder *b, nir_ssa_def *x, float _p0, float _p1)
{
+ nir_ssa_def *p0 = nir_imm_floatN_t(b, _p0, x->bit_size);
+ nir_ssa_def *p1 = nir_imm_floatN_t(b, _p1, x->bit_size);
+ nir_ssa_def *one = nir_imm_floatN_t(b, 1.0f, x->bit_size);
+ nir_ssa_def *m_pi_2 = nir_imm_floatN_t(b, M_PI_2f, x->bit_size);
+ nir_ssa_def *m_pi_4_minus_one =
+ nir_imm_floatN_t(b, M_PI_4f - 1.0f, x->bit_size);
nir_ssa_def *abs_x = nir_fabs(b, x);
return nir_fmul(b, nir_fsign(b, x),
- nir_fsub(b, nir_imm_float(b, M_PI_2f),
- nir_fmul(b, nir_fsqrt(b, nir_fsub(b, nir_imm_float(b, 1.0f), abs_x)),
- nir_fadd(b, nir_imm_float(b, M_PI_2f),
+ nir_fsub(b, m_pi_2,
+ nir_fmul(b, nir_fsqrt(b, nir_fsub(b, one, abs_x)),
+ nir_fadd(b, m_pi_2,
nir_fmul(b, abs_x,
- nir_fadd(b, nir_imm_float(b, M_PI_4f - 1.0f),
+ nir_fadd(b, m_pi_4_minus_one,
nir_fmul(b, abs_x,
- nir_fadd(b, nir_imm_float(b, p0),
+ nir_fadd(b, p0,
nir_fmul(b, abs_x,
- nir_imm_float(b, p1))))))))));
+ p1)))))))));
}
/**
--
2.14.1
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