src/gallium/auxiliary/gallivm/lp_bld_arit.h

   1 /**************************************************************************
   2  *
   3  * Copyright 2009 VMware, Inc.
   4  * All Rights Reserved.
   5  *
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   7  * copy of this software and associated documentation files (the
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  11  * permit persons to whom the Software is furnished to do so, subject to
  12  * the following conditions:
  13  *
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  15  * next paragraph) shall be included in all copies or substantial portions
  16  * of the Software.
  17  *
  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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  25  *
  26  **************************************************************************/
  27
  28 /**
  29  * @file
  30  * Helper arithmetic functions.
  31  *
  32  * @author Jose Fonseca <jfonseca@vmware.com>
  33  */
  34
  35
  36 #ifndef LP_BLD_ARIT_H
  37 #define LP_BLD_ARIT_H
  38
  39
  40 #include <llvm-c/Core.h>
  41
  42
  43 struct lp_type;
  44 struct lp_build_context;
  45
  46
  47 /**
  48  * Complement, i.e., 1 - a.
  49  */
  50 LLVMValueRef
  51 lp_build_comp(struct lp_build_context *bld,
  52               LLVMValueRef a);
  53
  54 LLVMValueRef
  55 lp_build_add(struct lp_build_context *bld,
  56              LLVMValueRef a,
  57              LLVMValueRef b);
  58
  59 LLVMValueRef
  60 lp_build_sub(struct lp_build_context *bld,
  61              LLVMValueRef a,
  62              LLVMValueRef b);
  63
  64 LLVMValueRef
  65 lp_build_mul(struct lp_build_context *bld,
  66              LLVMValueRef a,
  67              LLVMValueRef b);
  68
  69 LLVMValueRef
  70 lp_build_mul_imm(struct lp_build_context *bld,
  71                  LLVMValueRef a,
  72                  int b);
  73
  74 LLVMValueRef
  75 lp_build_div(struct lp_build_context *bld,
  76              LLVMValueRef a,
  77              LLVMValueRef b);
  78
  79 LLVMValueRef
  80 lp_build_lerp(struct lp_build_context *bld,
  81               LLVMValueRef x,
  82               LLVMValueRef v0,
  83               LLVMValueRef v1);
  84
  85 /**
  86  * Bilinear interpolation.
  87  *
  88  * Values indices are in v_{yx}.
  89  */
  90 LLVMValueRef
  91 lp_build_lerp_2d(struct lp_build_context *bld,
  92                  LLVMValueRef x,
  93                  LLVMValueRef y,
  94                  LLVMValueRef v00,
  95                  LLVMValueRef v01,
  96                  LLVMValueRef v10,
  97                  LLVMValueRef v11);
  98
  99 LLVMValueRef
 100 lp_build_min(struct lp_build_context *bld,
 101              LLVMValueRef a,
 102              LLVMValueRef b);
 103
 104 LLVMValueRef
 105 lp_build_max(struct lp_build_context *bld,
 106              LLVMValueRef a,
 107              LLVMValueRef b);
 108
 109 LLVMValueRef
 110 lp_build_clamp(struct lp_build_context *bld,
 111                LLVMValueRef a,
 112                LLVMValueRef min,
 113                LLVMValueRef max);
 114
 115 LLVMValueRef
 116 lp_build_abs(struct lp_build_context *bld,
 117              LLVMValueRef a);
 118
 119 LLVMValueRef
 120 lp_build_negate(struct lp_build_context *bld,
 121                 LLVMValueRef a);
 122
 123 LLVMValueRef
 124 lp_build_sgn(struct lp_build_context *bld,
 125              LLVMValueRef a);
 126
 127 LLVMValueRef
 128 lp_build_set_sign(struct lp_build_context *bld,
 129                   LLVMValueRef a, LLVMValueRef sign);
 130
 131 LLVMValueRef
 132 lp_build_int_to_float(struct lp_build_context *bld,
 133                       LLVMValueRef a);
 134
 135 LLVMValueRef
 136 lp_build_round(struct lp_build_context *bld,
 137                LLVMValueRef a);
 138
 139 LLVMValueRef
 140 lp_build_floor(struct lp_build_context *bld,
 141                LLVMValueRef a);
 142
 143 LLVMValueRef
 144 lp_build_ceil(struct lp_build_context *bld,
 145               LLVMValueRef a);
 146
 147 LLVMValueRef
 148 lp_build_trunc(struct lp_build_context *bld,
 149                LLVMValueRef a);
 150
 151 LLVMValueRef
 152 lp_build_fract(struct lp_build_context *bld,
 153                LLVMValueRef a);
 154
 155 LLVMValueRef
 156 lp_build_ifloor(struct lp_build_context *bld,
 157                 LLVMValueRef a);
 158 LLVMValueRef
 159 lp_build_iceil(struct lp_build_context *bld,
 160                LLVMValueRef a);
 161
 162 LLVMValueRef
 163 lp_build_iround(struct lp_build_context *bld,
 164                 LLVMValueRef a);
 165
 166 LLVMValueRef
 167 lp_build_itrunc(struct lp_build_context *bld,
 168                 LLVMValueRef a);
 169
 170 LLVMValueRef
 171 lp_build_sqrt(struct lp_build_context *bld,
 172               LLVMValueRef a);
 173
 174 LLVMValueRef
 175 lp_build_rcp(struct lp_build_context *bld,
 176              LLVMValueRef a);
 177
 178 LLVMValueRef
 179 lp_build_rsqrt(struct lp_build_context *bld,
 180                LLVMValueRef a);
 181
 182 LLVMValueRef
 183 lp_build_cos(struct lp_build_context *bld,
 184              LLVMValueRef a);
 185
 186 LLVMValueRef
 187 lp_build_sin(struct lp_build_context *bld,
 188              LLVMValueRef a);
 189
 190 LLVMValueRef
 191 lp_build_pow(struct lp_build_context *bld,
 192              LLVMValueRef a,
 193              LLVMValueRef b);
 194
 195 LLVMValueRef
 196 lp_build_exp(struct lp_build_context *bld,
 197              LLVMValueRef a);
 198
 199 LLVMValueRef
 200 lp_build_log(struct lp_build_context *bld,
 201              LLVMValueRef a);
 202
 203 LLVMValueRef
 204 lp_build_exp2(struct lp_build_context *bld,
 205               LLVMValueRef a);
 206
 207 LLVMValueRef
 208 lp_build_log2(struct lp_build_context *bld,
 209               LLVMValueRef a);
 210
 211 void
 212 lp_build_exp2_approx(struct lp_build_context *bld,
 213                      LLVMValueRef x,
 214                      LLVMValueRef *p_exp2_int_part,
 215                      LLVMValueRef *p_frac_part,
 216                      LLVMValueRef *p_exp2);
 217
 218 void
 219 lp_build_log2_approx(struct lp_build_context *bld,
 220                      LLVMValueRef x,
 221                      LLVMValueRef *p_exp,
 222                      LLVMValueRef *p_floor_log2,
 223                      LLVMValueRef *p_log2);
 224
 225 #endif /* !LP_BLD_ARIT_H */