src/compiler/nir/nir_builtin_builder.h

   1 /*
   2  * Copyright © 2018 Red Hat Inc.
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8  * and/or sell copies of the Software, and to permit persons to whom the
   9  * Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice (including the next
  12  * paragraph) shall be included in all copies or substantial portions of the
  13  * Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  18  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  20  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
  21  * IN THE SOFTWARE.
  22  */
  23
  24 #ifndef NIR_BUILTIN_BUILDER_H
  25 #define NIR_BUILTIN_BUILDER_H
  26
  27 #include "nir/nir_builder.h"
  28
  29 /*
  30  * Functions are sorted alphabetically with removed type and "fast" prefix.
  31  * Definitions for functions in the C file come first.
  32  */
  33
  34 nir_ssa_def* nir_cross(nir_builder *b, nir_ssa_def *x, nir_ssa_def *y);
  35 nir_ssa_def* nir_fast_length(nir_builder *b, nir_ssa_def *vec);
  36 nir_ssa_def* nir_smoothstep(nir_builder *b, nir_ssa_def *edge0,
  37                             nir_ssa_def *edge1, nir_ssa_def *x);
  38
  39 static inline nir_ssa_def *
  40 nir_fclamp(nir_builder *b,
  41            nir_ssa_def *x, nir_ssa_def *min_val, nir_ssa_def *max_val)
  42 {
  43    return nir_fmin(b, nir_fmax(b, x, min_val), max_val);
  44 }
  45
  46 static inline nir_ssa_def *
  47 nir_iclamp(nir_builder *b,
  48            nir_ssa_def *x, nir_ssa_def *min_val, nir_ssa_def *max_val)
  49 {
  50    return nir_imin(b, nir_imax(b, x, min_val), max_val);
  51 }
  52
  53 static inline nir_ssa_def *
  54 nir_uclamp(nir_builder *b,
  55            nir_ssa_def *x, nir_ssa_def *min_val, nir_ssa_def *max_val)
  56 {
  57    return nir_umin(b, nir_umax(b, x, min_val), max_val);
  58 }
  59
  60 static inline nir_ssa_def *
  61 nir_degrees(nir_builder *b, nir_ssa_def *val)
  62 {
  63    return nir_fmul_imm(b, val, 57.2957795131);
  64 }
  65
  66 static inline nir_ssa_def *
  67 nir_fast_distance(nir_builder *b, nir_ssa_def *x, nir_ssa_def *y)
  68 {
  69    return nir_fast_length(b, nir_fsub(b, x, y));
  70 }
  71
  72 static inline nir_ssa_def*
  73 nir_fast_normalize(nir_builder *b, nir_ssa_def *vec)
  74 {
  75    return nir_fdiv(b, vec, nir_fast_length(b, vec));
  76 }
  77
  78 static inline nir_ssa_def *
  79 nir_radians(nir_builder *b, nir_ssa_def *val)
  80 {
  81    return nir_fmul_imm(b, val, 0.01745329251);
  82 }
  83
  84 #endif /* NIR_BUILTIN_BUILDER_H */