src/gallium/drivers/llvmpipe/lp_bld_arit.h

   1 /**************************************************************************
   2  *
   3  * Copyright 2009 VMware, Inc.
   4  * All Rights Reserved.
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  15  * next paragraph) shall be included in all copies or substantial portions
  16  * of the Software.
  17  *
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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 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_div(struct lp_build_context *bld,
  71              LLVMValueRef a,
  72              LLVMValueRef b);
  73
  74 LLVMValueRef
  75 lp_build_lerp(struct lp_build_context *bld,
  76               LLVMValueRef x,
  77               LLVMValueRef v0,
  78               LLVMValueRef v1);
  79
  80 /**
  81  * Bilinear interpolation.
  82  *
  83  * Values indices are in v_{yx}.
  84  */
  85 LLVMValueRef
  86 lp_build_lerp_2d(struct lp_build_context *bld,
  87                  LLVMValueRef x,
  88                  LLVMValueRef y,
  89                  LLVMValueRef v00,
  90                  LLVMValueRef v01,
  91                  LLVMValueRef v10,
  92                  LLVMValueRef v11);
  93
  94 LLVMValueRef
  95 lp_build_min(struct lp_build_context *bld,
  96              LLVMValueRef a,
  97              LLVMValueRef b);
  98
  99 LLVMValueRef
 100 lp_build_max(struct lp_build_context *bld,
 101              LLVMValueRef a,
 102              LLVMValueRef b);
 103
 104 LLVMValueRef
 105 lp_build_abs(struct lp_build_context *bld,
 106              LLVMValueRef a);
 107
 108 LLVMValueRef
 109 lp_build_sgn(struct lp_build_context *bld,
 110              LLVMValueRef a);
 111
 112 LLVMValueRef
 113 lp_build_round(struct lp_build_context *bld,
 114                LLVMValueRef a);
 115
 116 LLVMValueRef
 117 lp_build_floor(struct lp_build_context *bld,
 118                LLVMValueRef a);
 119
 120 LLVMValueRef
 121 lp_build_ceil(struct lp_build_context *bld,
 122               LLVMValueRef a);
 123
 124 LLVMValueRef
 125 lp_build_trunc(struct lp_build_context *bld,
 126                LLVMValueRef a);
 127
 128 LLVMValueRef
 129 lp_build_int(struct lp_build_context *bld,
 130              LLVMValueRef a);
 131
 132 LLVMValueRef
 133 lp_build_ifloor(struct lp_build_context *bld,
 134                 LLVMValueRef a);
 135
 136 LLVMValueRef
 137 lp_build_sqrt(struct lp_build_context *bld,
 138               LLVMValueRef a);
 139
 140 LLVMValueRef
 141 lp_build_rcp(struct lp_build_context *bld,
 142              LLVMValueRef a);
 143
 144 LLVMValueRef
 145 lp_build_rsqrt(struct lp_build_context *bld,
 146                LLVMValueRef a);
 147
 148 LLVMValueRef
 149 lp_build_cos(struct lp_build_context *bld,
 150              LLVMValueRef a);
 151
 152 LLVMValueRef
 153 lp_build_sin(struct lp_build_context *bld,
 154              LLVMValueRef a);
 155
 156 LLVMValueRef
 157 lp_build_pow(struct lp_build_context *bld,
 158              LLVMValueRef a,
 159              LLVMValueRef b);
 160
 161 LLVMValueRef
 162 lp_build_exp(struct lp_build_context *bld,
 163              LLVMValueRef a);
 164
 165 LLVMValueRef
 166 lp_build_log(struct lp_build_context *bld,
 167              LLVMValueRef a);
 168
 169 LLVMValueRef
 170 lp_build_exp2(struct lp_build_context *bld,
 171               LLVMValueRef a);
 172
 173 LLVMValueRef
 174 lp_build_log2(struct lp_build_context *bld,
 175               LLVMValueRef a);
 176
 177 void
 178 lp_build_exp2_approx(struct lp_build_context *bld,
 179                      LLVMValueRef x,
 180                      LLVMValueRef *p_exp2_int_part,
 181                      LLVMValueRef *p_frac_part,
 182                      LLVMValueRef *p_exp2);
 183
 184 void
 185 lp_build_log2_approx(struct lp_build_context *bld,
 186                      LLVMValueRef x,
 187                      LLVMValueRef *p_exp,
 188                      LLVMValueRef *p_floor_log2,
 189                      LLVMValueRef *p_log2);
 190
 191 #endif /* !LP_BLD_ARIT_H */