src/gallium/drivers/llvmpipe/lp_test_format.c

   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,
  10  * distribute, sub license, and/or sell copies of the Software, and to
  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
  22  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  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 #include <stdlib.h>
  30 #include <stdio.h>
  31 #include <float.h>
  32
  33 #include "gallivm/lp_bld.h"
  34 #include "gallivm/lp_bld_debug.h"
  35 #include "gallivm/lp_bld_init.h"
  36 #include <llvm-c/Analysis.h>
  37 #include <llvm-c/Target.h>
  38 #include <llvm-c/Transforms/Scalar.h>
  39
  40 #include "util/u_memory.h"
  41 #include "util/u_pointer.h"
  42 #include "util/u_string.h"
  43 #include "util/u_format.h"
  44 #include "util/u_format_tests.h"
  45 #include "util/u_format_s3tc.h"
  46
  47 #include "gallivm/lp_bld_format.h"
  48 #include "lp_test.h"
  49
  50
  51 void
  52 write_tsv_header(FILE *fp)
  53 {
  54    fprintf(fp,
  55            "result\t"
  56            "format\n");
  57
  58    fflush(fp);
  59 }
  60
  61
  62 static void
  63 write_tsv_row(FILE *fp,
  64               const struct util_format_description *desc,
  65               boolean success)
  66 {
  67    fprintf(fp, "%s\t", success ? "pass" : "fail");
  68
  69    fprintf(fp, "%s\n", desc->name);
  70
  71    fflush(fp);
  72 }
  73
  74
  75 typedef void
  76 (*fetch_ptr_t)(void *unpacked, const void *packed,
  77                unsigned i, unsigned j);
  78
  79
  80 static LLVMValueRef
  81 add_fetch_rgba_test(unsigned verbose,
  82                     const struct util_format_description *desc,
  83                     struct lp_type type)
  84 {
  85    char name[256];
  86    LLVMTypeRef args[4];
  87    LLVMValueRef func;
  88    LLVMValueRef packed_ptr;
  89    LLVMValueRef offset = LLVMConstNull(LLVMInt32Type());
  90    LLVMValueRef rgba_ptr;
  91    LLVMValueRef i;
  92    LLVMValueRef j;
  93    LLVMBasicBlockRef block;
  94    LLVMBuilderRef builder;
  95    LLVMValueRef rgba;
  96
  97    util_snprintf(name, sizeof name, "fetch_%s_%s", desc->short_name,
  98                  type.floating ? "float" : "unorm8");
  99
 100    args[0] = LLVMPointerType(lp_build_vec_type(type), 0);
 101    args[1] = LLVMPointerType(LLVMInt8Type(), 0);
 102    args[3] = args[2] = LLVMInt32Type();
 103
 104    func = LLVMAddFunction(lp_build_module, name,
 105                           LLVMFunctionType(LLVMVoidType(), args, Elements(args), 0));
 106    LLVMSetFunctionCallConv(func, LLVMCCallConv);
 107    rgba_ptr = LLVMGetParam(func, 0);
 108    packed_ptr = LLVMGetParam(func, 1);
 109    i = LLVMGetParam(func, 2);
 110    j = LLVMGetParam(func, 3);
 111
 112    block = LLVMAppendBasicBlock(func, "entry");
 113    builder = LLVMCreateBuilder();
 114    LLVMPositionBuilderAtEnd(builder, block);
 115
 116    rgba = lp_build_fetch_rgba_aos(builder, desc, type,
 117                                   packed_ptr, offset, i, j);
 118
 119    LLVMBuildStore(builder, rgba, rgba_ptr);
 120
 121    LLVMBuildRetVoid(builder);
 122
 123    LLVMDisposeBuilder(builder);
 124
 125    if (LLVMVerifyFunction(func, LLVMPrintMessageAction)) {
 126       LLVMDumpValue(func);
 127       abort();
 128    }
 129
 130    LLVMRunFunctionPassManager(lp_build_pass, func);
 131
 132    if (verbose >= 1) {
 133       LLVMDumpValue(func);
 134    }
 135
 136    return func;
 137 }
 138
 139
 140 PIPE_ALIGN_STACK
 141 static boolean
 142 test_format_float(unsigned verbose, FILE *fp,
 143                   const struct util_format_description *desc)
 144 {
 145    LLVMValueRef fetch = NULL;
 146    fetch_ptr_t fetch_ptr;
 147    PIPE_ALIGN_VAR(16) float unpacked[4];
 148    boolean first = TRUE;
 149    boolean success = TRUE;
 150    unsigned i, j, k, l;
 151    void *f;
 152
 153    fetch = add_fetch_rgba_test(verbose, desc, lp_float32_vec4_type());
 154
 155    f = LLVMGetPointerToGlobal(lp_build_engine, fetch);
 156    fetch_ptr = (fetch_ptr_t) pointer_to_func(f);
 157
 158    if (verbose >= 2) {
 159       lp_disassemble(f);
 160    }
 161
 162    for (l = 0; l < util_format_nr_test_cases; ++l) {
 163       const struct util_format_test_case *test = &util_format_test_cases[l];
 164
 165       if (test->format == desc->format) {
 166
 167          if (first) {
 168             printf("Testing %s (float) ...\n",
 169                    desc->name);
 170             first = FALSE;
 171          }
 172
 173          for (i = 0; i < desc->block.height; ++i) {
 174             for (j = 0; j < desc->block.width; ++j) {
 175                boolean match;
 176
 177                memset(unpacked, 0, sizeof unpacked);
 178
 179                fetch_ptr(unpacked, test->packed, j, i);
 180
 181                match = TRUE;
 182                for(k = 0; k < 4; ++k)
 183                   if (fabs((float)test->unpacked[i][j][k] - unpacked[k]) > FLT_EPSILON)
 184                      match = FALSE;
 185
 186                if (!match) {
 187                   printf("FAILED\n");
 188                   printf("  Packed: %02x %02x %02x %02x\n",
 189                          test->packed[0], test->packed[1], test->packed[2], test->packed[3]);
 190                   printf("  Unpacked (%u,%u): %f %f %f %f obtained\n",
 191                          j, i,
 192                          unpacked[0], unpacked[1], unpacked[2], unpacked[3]);
 193                   printf("                  %f %f %f %f expected\n",
 194                          test->unpacked[i][j][0],
 195                          test->unpacked[i][j][1],
 196                          test->unpacked[i][j][2],
 197                          test->unpacked[i][j][3]);
 198                   success = FALSE;
 199                }
 200             }
 201          }
 202       }
 203    }
 204
 205    if (!success) {
 206       if (verbose < 1) {
 207          LLVMDumpValue(fetch);
 208       }
 209    }
 210
 211    LLVMFreeMachineCodeForFunction(lp_build_engine, fetch);
 212    LLVMDeleteFunction(fetch);
 213
 214    if(fp)
 215       write_tsv_row(fp, desc, success);
 216
 217    return success;
 218 }
 219
 220
 221 PIPE_ALIGN_STACK
 222 static boolean
 223 test_format_unorm8(unsigned verbose, FILE *fp,
 224                    const struct util_format_description *desc)
 225 {
 226    LLVMValueRef fetch = NULL;
 227    fetch_ptr_t fetch_ptr;
 228    uint8_t unpacked[4];
 229    boolean first = TRUE;
 230    boolean success = TRUE;
 231    unsigned i, j, k, l;
 232    void *f;
 233
 234    fetch = add_fetch_rgba_test(verbose, desc, lp_unorm8_vec4_type());
 235
 236    f = LLVMGetPointerToGlobal(lp_build_engine, fetch);
 237    fetch_ptr = (fetch_ptr_t) pointer_to_func(f);
 238
 239    if (verbose >= 2) {
 240       lp_disassemble(f);
 241    }
 242
 243    for (l = 0; l < util_format_nr_test_cases; ++l) {
 244       const struct util_format_test_case *test = &util_format_test_cases[l];
 245
 246       if (test->format == desc->format) {
 247
 248          if (first) {
 249             printf("Testing %s (unorm8) ...\n",
 250                    desc->name);
 251             first = FALSE;
 252          }
 253
 254          for (i = 0; i < desc->block.height; ++i) {
 255             for (j = 0; j < desc->block.width; ++j) {
 256                boolean match;
 257
 258                memset(unpacked, 0, sizeof unpacked);
 259
 260                fetch_ptr(unpacked, test->packed, j, i);
 261
 262                match = TRUE;
 263                for(k = 0; k < 4; ++k) {
 264                   int error = float_to_ubyte(test->unpacked[i][j][k]) - unpacked[k];
 265                   if (error < 0)
 266                      error = -error;
 267                   if (error > 1)
 268                      match = FALSE;
 269                }
 270
 271                if (!match) {
 272                   printf("FAILED\n");
 273                   printf("  Packed: %02x %02x %02x %02x\n",
 274                          test->packed[0], test->packed[1], test->packed[2], test->packed[3]);
 275                   printf("  Unpacked (%u,%u): %02x %02x %02x %02x obtained\n",
 276                          j, i,
 277                          unpacked[0], unpacked[1], unpacked[2], unpacked[3]);
 278                   printf("                  %02x %02x %02x %02x expected\n",
 279                          float_to_ubyte(test->unpacked[i][j][0]),
 280                          float_to_ubyte(test->unpacked[i][j][1]),
 281                          float_to_ubyte(test->unpacked[i][j][2]),
 282                          float_to_ubyte(test->unpacked[i][j][3]));
 283                   success = FALSE;
 284                }
 285             }
 286          }
 287       }
 288    }
 289
 290    if (!success)
 291       LLVMDumpValue(fetch);
 292
 293    LLVMFreeMachineCodeForFunction(lp_build_engine, fetch);
 294    LLVMDeleteFunction(fetch);
 295
 296    if(fp)
 297       write_tsv_row(fp, desc, success);
 298
 299    return success;
 300 }
 301
 302
 303
 304
 305 static boolean
 306 test_one(unsigned verbose, FILE *fp,
 307          const struct util_format_description *format_desc)
 308 {
 309    boolean success = TRUE;
 310
 311    if (!test_format_float(verbose, fp, format_desc)) {
 312      success = FALSE;
 313    }
 314
 315    if (!test_format_unorm8(verbose, fp, format_desc)) {
 316      success = FALSE;
 317    }
 318
 319    return success;
 320 }
 321
 322
 323 boolean
 324 test_all(unsigned verbose, FILE *fp)
 325 {
 326    enum pipe_format format;
 327    boolean success = TRUE;
 328
 329    util_format_s3tc_init();
 330
 331    for (format = 1; format < PIPE_FORMAT_COUNT; ++format) {
 332       const struct util_format_description *format_desc;
 333
 334       format_desc = util_format_description(format);
 335       if (!format_desc) {
 336          continue;
 337       }
 338
 339       /*
 340        * TODO: test more
 341        */
 342
 343       if (format_desc->colorspace == UTIL_FORMAT_COLORSPACE_ZS) {
 344          continue;
 345       }
 346
 347       if (format_desc->layout == UTIL_FORMAT_LAYOUT_S3TC &&
 348           !util_format_s3tc_enabled) {
 349          continue;
 350       }
 351
 352       if (!test_one(verbose, fp, format_desc)) {
 353            success = FALSE;
 354       }
 355    }
 356
 357    return success;
 358 }
 359
 360
 361 boolean
 362 test_some(unsigned verbose, FILE *fp, unsigned long n)
 363 {
 364    return test_all(verbose, fp);
 365 }
 366
 367
 368 boolean
 369 test_single(unsigned verbose, FILE *fp)
 370 {
 371    printf("no test_single()");
 372    return TRUE;
 373 }