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/*
* Copyright © 2018 Red Hat Inc.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*/
#ifndef NIR_BUILTIN_BUILDER_H
#define NIR_BUILTIN_BUILDER_H
#include "util/u_math.h"
#include "nir/nir_builder.h"
#ifdef __cplusplus
extern "C" {
#endif
/*
* Functions are sorted alphabetically with removed type and "fast" prefix.
* Definitions for functions in the C file come first.
*/
nir_ssa_def* nir_cross3(nir_builder *b, nir_ssa_def *x, nir_ssa_def *y);
nir_ssa_def* nir_cross4(nir_builder *b, nir_ssa_def *x, nir_ssa_def *y);
nir_ssa_def* nir_length(nir_builder *b, nir_ssa_def *vec);
nir_ssa_def* nir_fast_length(nir_builder *b, nir_ssa_def *vec);
nir_ssa_def* nir_nextafter(nir_builder *b, nir_ssa_def *x, nir_ssa_def *y);
nir_ssa_def* nir_normalize(nir_builder *b, nir_ssa_def *vec);
nir_ssa_def* nir_rotate(nir_builder *b, nir_ssa_def *x, nir_ssa_def *y);
nir_ssa_def* nir_smoothstep(nir_builder *b, nir_ssa_def *edge0,
nir_ssa_def *edge1, nir_ssa_def *x);
nir_ssa_def* nir_upsample(nir_builder *b, nir_ssa_def *hi, nir_ssa_def *lo);
nir_ssa_def* nir_atan(nir_builder *b, nir_ssa_def *y_over_x);
nir_ssa_def* nir_atan2(nir_builder *b, nir_ssa_def *y, nir_ssa_def *x);
static inline nir_ssa_def *
nir_nan_check2(nir_builder *b, nir_ssa_def *x, nir_ssa_def *y, nir_ssa_def *res)
{
return nir_bcsel(b, nir_fne(b, x, x), x, nir_bcsel(b, nir_fne(b, y, y), y, res));
}
static inline nir_ssa_def *
nir_fmax_abs_vec_comp(nir_builder *b, nir_ssa_def *vec)
{
nir_ssa_def *res = nir_channel(b, vec, 0);
for (unsigned i = 1; i < vec->num_components; ++i)
res = nir_fmax(b, res, nir_fabs(b, nir_channel(b, vec, i)));
return res;
}
static inline nir_ssa_def *
nir_iabs_diff(nir_builder *b, nir_ssa_def *x, nir_ssa_def *y)
{
nir_ssa_def *cond = nir_ige(b, x, y);
nir_ssa_def *res0 = nir_isub(b, x, y);
nir_ssa_def *res1 = nir_isub(b, y, x);
return nir_bcsel(b, cond, res0, res1);
}
static inline nir_ssa_def *
nir_uabs_diff(nir_builder *b, nir_ssa_def *x, nir_ssa_def *y)
{
nir_ssa_def *cond = nir_uge(b, x, y);
nir_ssa_def *res0 = nir_isub(b, x, y);
nir_ssa_def *res1 = nir_isub(b, y, x);
return nir_bcsel(b, cond, res0, res1);
}
static inline nir_ssa_def *
nir_bitselect(nir_builder *b, nir_ssa_def *x, nir_ssa_def *y, nir_ssa_def *s)
{
return nir_ior(b, nir_iand(b, nir_inot(b, s), x), nir_iand(b, s, y));
}
static inline nir_ssa_def *
nir_fclamp(nir_builder *b,
nir_ssa_def *x, nir_ssa_def *min_val, nir_ssa_def *max_val)
{
return nir_fmin(b, nir_fmax(b, x, min_val), max_val);
}
static inline nir_ssa_def *
nir_iclamp(nir_builder *b,
nir_ssa_def *x, nir_ssa_def *min_val, nir_ssa_def *max_val)
{
return nir_imin(b, nir_imax(b, x, min_val), max_val);
}
static inline nir_ssa_def *
nir_uclamp(nir_builder *b,
nir_ssa_def *x, nir_ssa_def *min_val, nir_ssa_def *max_val)
{
return nir_umin(b, nir_umax(b, x, min_val), max_val);
}
static inline nir_ssa_def *
nir_copysign(nir_builder *b, nir_ssa_def *x, nir_ssa_def *y)
{
uint64_t masks = 1ull << (x->bit_size - 1);
uint64_t maskv = ~masks;
nir_ssa_def *s = nir_imm_intN_t(b, masks, x->bit_size);
nir_ssa_def *v = nir_imm_intN_t(b, maskv, x->bit_size);
return nir_ior(b, nir_iand(b, x, v), nir_iand(b, y, s));
}
static inline nir_ssa_def *
nir_degrees(nir_builder *b, nir_ssa_def *val)
{
return nir_fmul_imm(b, val, 180.0 / M_PI);
}
static inline nir_ssa_def *
nir_fdim(nir_builder *b, nir_ssa_def *x, nir_ssa_def *y)
{
nir_ssa_def *cond = nir_flt(b, y, x);
nir_ssa_def *res = nir_fsub(b, x, y);
nir_ssa_def *zero = nir_imm_floatN_t(b, 0.0, x->bit_size);
// return NaN if either x or y are NaN, else x-y if x>y, else +0.0
return nir_nan_check2(b, x, y, nir_bcsel(b, cond, res, zero));
}
static inline nir_ssa_def *
nir_distance(nir_builder *b, nir_ssa_def *x, nir_ssa_def *y)
{
return nir_length(b, nir_fsub(b, x, y));
}
static inline nir_ssa_def *
nir_fast_distance(nir_builder *b, nir_ssa_def *x, nir_ssa_def *y)
{
return nir_fast_length(b, nir_fsub(b, x, y));
}
static inline nir_ssa_def*
nir_fast_normalize(nir_builder *b, nir_ssa_def *vec)
{
return nir_fdiv(b, vec, nir_fast_length(b, vec));
}
static inline nir_ssa_def*
nir_fmad(nir_builder *b, nir_ssa_def *x, nir_ssa_def *y, nir_ssa_def *z)
{
return nir_fadd(b, nir_fmul(b, x, y), z);
}
static inline nir_ssa_def*
nir_maxmag(nir_builder *b, nir_ssa_def *x, nir_ssa_def *y)
{
nir_ssa_def *xabs = nir_fabs(b, x);
nir_ssa_def *yabs = nir_fabs(b, y);
nir_ssa_def *condy = nir_flt(b, xabs, yabs);
nir_ssa_def *condx = nir_flt(b, yabs, xabs);
return nir_bcsel(b, condy, y, nir_bcsel(b, condx, x, nir_fmax(b, x, y)));
}
static inline nir_ssa_def*
nir_minmag(nir_builder *b, nir_ssa_def *x, nir_ssa_def *y)
{
nir_ssa_def *xabs = nir_fabs(b, x);
nir_ssa_def *yabs = nir_fabs(b, y);
nir_ssa_def *condx = nir_flt(b, xabs, yabs);
nir_ssa_def *condy = nir_flt(b, yabs, xabs);
return nir_bcsel(b, condy, y, nir_bcsel(b, condx, x, nir_fmin(b, x, y)));
}
static inline nir_ssa_def*
nir_nan(nir_builder *b, nir_ssa_def *x)
{
nir_ssa_def *nan = nir_imm_floatN_t(b, NAN, x->bit_size);
if (x->num_components == 1)
return nan;
nir_ssa_def *nans[NIR_MAX_VEC_COMPONENTS];
for (unsigned i = 0; i < x->num_components; ++i)
nans[i] = nan;
return nir_vec(b, nans, x->num_components);
}
static inline nir_ssa_def *
nir_radians(nir_builder *b, nir_ssa_def *val)
{
return nir_fmul_imm(b, val, M_PI / 180.0);
}
static inline nir_ssa_def *
nir_select(nir_builder *b, nir_ssa_def *x, nir_ssa_def *y, nir_ssa_def *s)
{
if (s->num_components != 1) {
uint64_t mask = 1ull << (s->bit_size - 1);
s = nir_iand(b, s, nir_imm_intN_t(b, mask, s->bit_size));
}
return nir_bcsel(b, nir_ieq(b, s, nir_imm_intN_t(b, 0, s->bit_size)), x, y);
}
#ifdef __cplusplus
}
#endif
#endif /* NIR_BUILTIN_BUILDER_H */
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