src/gallium/drivers/llvmpipe/lp_test_main.c

   1 /**************************************************************************
   2  *
   3  * Copyright 2009 VMware, Inc.
   4  * All Rights Reserved.
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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  *
  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
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  27
  28
  29 /**
  30  * @file
  31  * Shared testing code.
  32  *
  33  * @author Jose Fonseca <jfonseca@vmware.com>
  34  */
  35
  36
  37 #include "util/u_cpu_detect.h"
  38
  39 #include "gallivm/lp_bld_const.h"
  40 #include "gallivm/lp_bld_init.h"
  41 #include "lp_test.h"
  42
  43
  44 #ifdef PIPE_CC_MSVC
  45 static INLINE double
  46 round(double x)
  47 {
  48    if (x >= 0.0)
  49       return floor(x + 0.5);
  50    else
  51       return ceil(x - 0.5);
  52 }
  53 #endif
  54
  55
  56 void
  57 dump_type(FILE *fp,
  58           struct lp_type type)
  59 {
  60    fprintf(fp, "%s%s%u%sx%u",
  61            type.sign ? (type.floating || type.fixed ? "" : "s") : "u",
  62            type.floating ? "f" : (type.fixed ? "h" : "i"),
  63            type.width,
  64            type.norm ? "n" : "",
  65            type.length);
  66 }
  67
  68
  69 double
  70 read_elem(struct lp_type type, const void *src, unsigned index)
  71 {
  72    double scale = lp_const_scale(type);
  73    double value;
  74    assert(index < type.length);
  75    if (type.floating) {
  76       switch(type.width) {
  77       case 32:
  78          value = *((const float *)src + index);
  79          break;
  80       case 64:
  81          value =  *((const double *)src + index);
  82          break;
  83       default:
  84          assert(0);
  85          return 0.0;
  86       }
  87    }
  88    else {
  89       if(type.sign) {
  90          switch(type.width) {
  91          case 8:
  92             value = *((const int8_t *)src + index);
  93             break;
  94          case 16:
  95             value = *((const int16_t *)src + index);
  96             break;
  97          case 32:
  98             value = *((const int32_t *)src + index);
  99             break;
 100          case 64:
 101             value = *((const int64_t *)src + index);
 102             break;
 103          default:
 104             assert(0);
 105             return 0.0;
 106          }
 107       }
 108       else {
 109          switch(type.width) {
 110          case 8:
 111             value = *((const uint8_t *)src + index);
 112             break;
 113          case 16:
 114             value = *((const uint16_t *)src + index);
 115             break;
 116          case 32:
 117             value = *((const uint32_t *)src + index);
 118             break;
 119          case 64:
 120             value = *((const uint64_t *)src + index);
 121             break;
 122          default:
 123             assert(0);
 124             return 0.0;
 125          }
 126       }
 127    }
 128    return value/scale;
 129 }
 130
 131
 132 void
 133 write_elem(struct lp_type type, void *dst, unsigned index, double value)
 134 {
 135    assert(index < type.length);
 136    if(!type.sign && value < 0.0)
 137       value = 0.0;
 138    if(type.norm && value < -1.0)
 139       value = -1.0;
 140    if(type.norm && value > 1.0)
 141       value = 1.0;
 142    if (type.floating) {
 143       switch(type.width) {
 144       case 32:
 145          *((float *)dst + index) = (float)(value);
 146          break;
 147       case 64:
 148           *((double *)dst + index) = value;
 149          break;
 150       default:
 151          assert(0);
 152       }
 153    }
 154    else {
 155       double scale = lp_const_scale(type);
 156       value = round(value*scale);
 157       if(type.sign) {
 158          long long lvalue = (long long)value;
 159          lvalue = MIN2(lvalue, ((long long)1 << (type.width - 1)) - 1);
 160          switch(type.width) {
 161          case 8:
 162             *((int8_t *)dst + index) = (int8_t)lvalue;
 163             break;
 164          case 16:
 165             *((int16_t *)dst + index) = (int16_t)lvalue;
 166             break;
 167          case 32:
 168             *((int32_t *)dst + index) = (int32_t)lvalue;
 169             break;
 170          case 64:
 171             *((int64_t *)dst + index) = (int64_t)lvalue;
 172             break;
 173          default:
 174             assert(0);
 175          }
 176       }
 177       else {
 178          unsigned long long lvalue = (long long)value;
 179          lvalue = MIN2(lvalue, ((unsigned long long)1 << type.width) - 1);
 180          switch(type.width) {
 181          case 8:
 182             *((uint8_t *)dst + index) = (uint8_t)lvalue;
 183             break;
 184          case 16:
 185             *((uint16_t *)dst + index) = (uint16_t)lvalue;
 186             break;
 187          case 32:
 188             *((uint32_t *)dst + index) = (uint32_t)lvalue;
 189             break;
 190          case 64:
 191             *((uint64_t *)dst + index) = (uint64_t)lvalue;
 192             break;
 193          default:
 194             assert(0);
 195          }
 196       }
 197    }
 198 }
 199
 200
 201 void
 202 random_elem(struct lp_type type, void *dst, unsigned index)
 203 {
 204    double value;
 205    assert(index < type.length);
 206    value = (double)rand()/(double)RAND_MAX;
 207    if(!type.norm) {
 208       unsigned long long mask;
 209       if (type.floating)
 210          mask = ~(unsigned long long)0;
 211       else if (type.fixed)
 212          mask = ((unsigned long long)1 << (type.width / 2)) - 1;
 213       else if (type.sign)
 214          mask = ((unsigned long long)1 << (type.width - 1)) - 1;
 215       else
 216          mask = ((unsigned long long)1 << type.width) - 1;
 217       value += (double)(mask & rand());
 218    }
 219    if(!type.sign)
 220       if(rand() & 1)
 221          value = -value;
 222    write_elem(type, dst, index, value);
 223 }
 224
 225
 226 void
 227 read_vec(struct lp_type type, const void *src, double *dst)
 228 {
 229    unsigned i;
 230    for (i = 0; i < type.length; ++i)
 231       dst[i] = read_elem(type, src, i);
 232 }
 233
 234
 235 void
 236 write_vec(struct lp_type type, void *dst, const double *src)
 237 {
 238    unsigned i;
 239    for (i = 0; i < type.length; ++i)
 240       write_elem(type, dst, i, src[i]);
 241 }
 242
 243
 244 float
 245 random_float(void)
 246 {
 247     return (float)((double)rand()/(double)RAND_MAX);
 248 }
 249
 250
 251 void
 252 random_vec(struct lp_type type, void *dst)
 253 {
 254    unsigned i;
 255    for (i = 0; i < type.length; ++i)
 256       random_elem(type, dst, i);
 257 }
 258
 259
 260 boolean
 261 compare_vec_with_eps(struct lp_type type, const void *res, const void *ref, double eps)
 262 {
 263    unsigned i;
 264    for (i = 0; i < type.length; ++i) {
 265       double res_elem = read_elem(type, res, i);
 266       double ref_elem = read_elem(type, ref, i);
 267       double delta = fabs(res_elem - ref_elem);
 268       if(delta >= 2.0*eps)
 269          return FALSE;
 270    }
 271
 272    return TRUE;
 273 }
 274
 275
 276 boolean
 277 compare_vec(struct lp_type type, const void *res, const void *ref)
 278 {
 279    double eps = lp_const_eps(type);
 280    return compare_vec_with_eps(type, res, ref, eps);
 281 }
 282
 283
 284 void
 285 dump_vec(FILE *fp, struct lp_type type, const void *src)
 286 {
 287    unsigned i;
 288    for (i = 0; i < type.length; ++i) {
 289       if(i)
 290          fprintf(fp, " ");
 291       if (type.floating) {
 292          double value;
 293          switch(type.width) {
 294          case 32:
 295             value = *((const float *)src + i);
 296             break;
 297          case 64:
 298             value = *((const double *)src + i);
 299             break;
 300          default:
 301             assert(0);
 302             value = 0.0;
 303          }
 304          fprintf(fp, "%f", value);
 305       }
 306       else {
 307          if(type.sign && !type.norm) {
 308             long long value;
 309             const char *format;
 310             switch(type.width) {
 311             case 8:
 312                value = *((const int8_t *)src + i);
 313                format = "%3lli";
 314                break;
 315             case 16:
 316                value = *((const int16_t *)src + i);
 317                format = "%5lli";
 318                break;
 319             case 32:
 320                value = *((const int32_t *)src + i);
 321                format = "%10lli";
 322                break;
 323             case 64:
 324                value = *((const int64_t *)src + i);
 325                format = "%20lli";
 326                break;
 327             default:
 328                assert(0);
 329                value = 0.0;
 330                format = "?";
 331             }
 332             fprintf(fp, format, value);
 333          }
 334          else {
 335             unsigned long long value;
 336             const char *format;
 337             switch(type.width) {
 338             case 8:
 339                value = *((const uint8_t *)src + i);
 340                format = type.norm ? "%2x" : "%4llu";
 341                break;
 342             case 16:
 343                value = *((const uint16_t *)src + i);
 344                format = type.norm ? "%4x" : "%6llx";
 345                break;
 346             case 32:
 347                value = *((const uint32_t *)src + i);
 348                format = type.norm ? "%8x" : "%11llx";
 349                break;
 350             case 64:
 351                value = *((const uint64_t *)src + i);
 352                format = type.norm ? "%16x" : "%21llx";
 353                break;
 354             default:
 355                assert(0);
 356                value = 0.0;
 357                format = "?";
 358             }
 359             fprintf(fp, format, value);
 360          }
 361       }
 362    }
 363 }
 364
 365
 366 int main(int argc, char **argv)
 367 {
 368    unsigned verbose = 0;
 369    FILE *fp = NULL;
 370    unsigned long n = 1000;
 371    unsigned i;
 372    boolean success;
 373
 374    for(i = 1; i < argc; ++i) {
 375       if(strcmp(argv[i], "-v") == 0)
 376          ++verbose;
 377       else if(strcmp(argv[i], "-o") == 0)
 378          fp = fopen(argv[++i], "wt");
 379       else
 380          n = atoi(argv[i]);
 381    }
 382
 383    LLVMLinkInJIT();
 384    LLVMInitializeNativeTarget();
 385
 386    util_cpu_detect();
 387
 388    if(fp) {
 389       /* Warm up the caches */
 390       test_some(0, NULL, 100);
 391
 392       write_tsv_header(fp);
 393    }
 394
 395    if(n)
 396       success = test_some(verbose, fp, n);
 397    else
 398       success = test_all(verbose, fp);
 399
 400    if(fp)
 401       fclose(fp);
 402
 403    return success ? 0 : 1;
 404 }