src/gallium/auxiliary/gallivm/lp_bld_arit.h

   1 /**************************************************************************
   2  *
   3  * Copyright 2009 VMware, Inc.
   4  * All Rights Reserved.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the
   8  * "Software"), to deal in the Software without restriction, including
   9  * without limitation the rights to use, copy, modify, merge, publish,
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  11  * permit persons to whom the Software is furnished to do so, subject to
  12  * the following conditions:
  13  *
  14  * The above copyright notice and this permission notice (including the
  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
  19  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  20  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  21  * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
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  23  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  24  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  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 "gallivm/lp_bld.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_sum_vector(struct lp_build_context *bld,
  61                     LLVMValueRef a);
  62
  63 LLVMValueRef
  64 lp_build_sub(struct lp_build_context *bld,
  65              LLVMValueRef a,
  66              LLVMValueRef b);
  67
  68 LLVMValueRef
  69 lp_build_mul(struct lp_build_context *bld,
  70              LLVMValueRef a,
  71              LLVMValueRef b);
  72
  73 LLVMValueRef
  74 lp_build_mul_imm(struct lp_build_context *bld,
  75                  LLVMValueRef a,
  76                  int b);
  77
  78 LLVMValueRef
  79 lp_build_div(struct lp_build_context *bld,
  80              LLVMValueRef a,
  81              LLVMValueRef b);
  82
  83 LLVMValueRef
  84 lp_build_lerp(struct lp_build_context *bld,
  85               LLVMValueRef x,
  86               LLVMValueRef v0,
  87               LLVMValueRef v1);
  88
  89 /**
  90  * Bilinear interpolation.
  91  *
  92  * Values indices are in v_{yx}.
  93  */
  94 LLVMValueRef
  95 lp_build_lerp_2d(struct lp_build_context *bld,
  96                  LLVMValueRef x,
  97                  LLVMValueRef y,
  98                  LLVMValueRef v00,
  99                  LLVMValueRef v01,
 100                  LLVMValueRef v10,
 101                  LLVMValueRef v11);
 102
 103 LLVMValueRef
 104 lp_build_min(struct lp_build_context *bld,
 105              LLVMValueRef a,
 106              LLVMValueRef b);
 107
 108 LLVMValueRef
 109 lp_build_max(struct lp_build_context *bld,
 110              LLVMValueRef a,
 111              LLVMValueRef b);
 112
 113 LLVMValueRef
 114 lp_build_clamp(struct lp_build_context *bld,
 115                LLVMValueRef a,
 116                LLVMValueRef min,
 117                LLVMValueRef max);
 118
 119 LLVMValueRef
 120 lp_build_abs(struct lp_build_context *bld,
 121              LLVMValueRef a);
 122
 123 LLVMValueRef
 124 lp_build_negate(struct lp_build_context *bld,
 125                 LLVMValueRef a);
 126
 127 LLVMValueRef
 128 lp_build_sgn(struct lp_build_context *bld,
 129              LLVMValueRef a);
 130
 131 LLVMValueRef
 132 lp_build_set_sign(struct lp_build_context *bld,
 133                   LLVMValueRef a, LLVMValueRef sign);
 134
 135 LLVMValueRef
 136 lp_build_int_to_float(struct lp_build_context *bld,
 137                       LLVMValueRef a);
 138
 139 LLVMValueRef
 140 lp_build_round(struct lp_build_context *bld,
 141                LLVMValueRef a);
 142
 143 LLVMValueRef
 144 lp_build_floor(struct lp_build_context *bld,
 145                LLVMValueRef a);
 146
 147 LLVMValueRef
 148 lp_build_ceil(struct lp_build_context *bld,
 149               LLVMValueRef a);
 150
 151 LLVMValueRef
 152 lp_build_trunc(struct lp_build_context *bld,
 153                LLVMValueRef a);
 154
 155 LLVMValueRef
 156 lp_build_fract(struct lp_build_context *bld,
 157                LLVMValueRef a);
 158
 159 LLVMValueRef
 160 lp_build_ifloor(struct lp_build_context *bld,
 161                 LLVMValueRef a);
 162 LLVMValueRef
 163 lp_build_iceil(struct lp_build_context *bld,
 164                LLVMValueRef a);
 165
 166 LLVMValueRef
 167 lp_build_iround(struct lp_build_context *bld,
 168                 LLVMValueRef a);
 169
 170 LLVMValueRef
 171 lp_build_itrunc(struct lp_build_context *bld,
 172                 LLVMValueRef a);
 173
 174 void
 175 lp_build_ifloor_fract(struct lp_build_context *bld,
 176                       LLVMValueRef a,
 177                       LLVMValueRef *out_ipart,
 178                       LLVMValueRef *out_fpart);
 179
 180 LLVMValueRef
 181 lp_build_sqrt(struct lp_build_context *bld,
 182               LLVMValueRef a);
 183
 184 LLVMValueRef
 185 lp_build_rcp(struct lp_build_context *bld,
 186              LLVMValueRef a);
 187
 188 LLVMValueRef
 189 lp_build_rsqrt(struct lp_build_context *bld,
 190                LLVMValueRef a);
 191
 192 LLVMValueRef
 193 lp_build_cos(struct lp_build_context *bld,
 194              LLVMValueRef a);
 195
 196 LLVMValueRef
 197 lp_build_sin(struct lp_build_context *bld,
 198              LLVMValueRef a);
 199
 200 LLVMValueRef
 201 lp_build_pow(struct lp_build_context *bld,
 202              LLVMValueRef a,
 203              LLVMValueRef b);
 204
 205 LLVMValueRef
 206 lp_build_exp(struct lp_build_context *bld,
 207              LLVMValueRef a);
 208
 209 LLVMValueRef
 210 lp_build_log(struct lp_build_context *bld,
 211              LLVMValueRef a);
 212
 213 LLVMValueRef
 214 lp_build_exp2(struct lp_build_context *bld,
 215               LLVMValueRef a);
 216
 217 LLVMValueRef
 218 lp_build_extract_exponent(struct lp_build_context *bld,
 219                           LLVMValueRef x,
 220                           int bias);
 221
 222 LLVMValueRef
 223 lp_build_extract_mantissa(struct lp_build_context *bld,
 224                           LLVMValueRef x);
 225
 226 LLVMValueRef
 227 lp_build_log2(struct lp_build_context *bld,
 228               LLVMValueRef a);
 229
 230 LLVMValueRef
 231 lp_build_fast_log2(struct lp_build_context *bld,
 232                    LLVMValueRef a);
 233
 234 LLVMValueRef
 235 lp_build_ilog2(struct lp_build_context *bld,
 236                LLVMValueRef x);
 237
 238 void
 239 lp_build_exp2_approx(struct lp_build_context *bld,
 240                      LLVMValueRef x,
 241                      LLVMValueRef *p_exp2_int_part,
 242                      LLVMValueRef *p_frac_part,
 243                      LLVMValueRef *p_exp2);
 244
 245 void
 246 lp_build_log2_approx(struct lp_build_context *bld,
 247                      LLVMValueRef x,
 248                      LLVMValueRef *p_exp,
 249                      LLVMValueRef *p_floor_log2,
 250                      LLVMValueRef *p_log2);
 251
 252 #endif /* !LP_BLD_ARIT_H */