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_init.h"
  35 #include <llvm-c/Analysis.h>
  36 #include <llvm-c/Target.h>
  37 #include <llvm-c/Transforms/Scalar.h>
  38
  39 #include "util/u_memory.h"
  40 #include "util/u_format.h"
  41 #include "util/u_format_tests.h"
  42 #include "util/u_format_s3tc.h"
  43
  44 #include "gallivm/lp_bld_format.h"
  45 #include "lp_test.h"
  46
  47
  48 void
  49 write_tsv_header(FILE *fp)
  50 {
  51    fprintf(fp,
  52            "result\t"
  53            "format\n");
  54
  55    fflush(fp);
  56 }
  57
  58
  59 static void
  60 write_tsv_row(FILE *fp,
  61               const struct util_format_description *desc,
  62               boolean success)
  63 {
  64    fprintf(fp, "%s\t", success ? "pass" : "fail");
  65
  66    fprintf(fp, "%s\n", desc->name);
  67
  68    fflush(fp);
  69 }
  70
  71
  72 typedef void
  73 (*fetch_ptr_t)(float *, const void *packed,
  74                unsigned i, unsigned j);
  75
  76
  77 static LLVMValueRef
  78 add_fetch_rgba_test(LLVMModuleRef lp_build_module,
  79                     const struct util_format_description *desc)
  80 {
  81    LLVMTypeRef args[4];
  82    LLVMValueRef func;
  83    LLVMValueRef packed_ptr;
  84    LLVMValueRef rgba_ptr;
  85    LLVMValueRef i;
  86    LLVMValueRef j;
  87    LLVMBasicBlockRef block;
  88    LLVMBuilderRef builder;
  89    LLVMValueRef rgba;
  90
  91    args[0] = LLVMPointerType(LLVMVectorType(LLVMFloatType(), 4), 0);
  92    args[1] = LLVMPointerType(LLVMInt8Type(), 0);
  93    args[3] = args[2] = LLVMInt32Type();
  94
  95    func = LLVMAddFunction(lp_build_module, "fetch", LLVMFunctionType(LLVMVoidType(), args, Elements(args), 0));
  96    LLVMSetFunctionCallConv(func, LLVMCCallConv);
  97    rgba_ptr = LLVMGetParam(func, 0);
  98    packed_ptr = LLVMGetParam(func, 1);
  99    i = LLVMGetParam(func, 2);
 100    j = LLVMGetParam(func, 3);
 101
 102    block = LLVMAppendBasicBlock(func, "entry");
 103    builder = LLVMCreateBuilder();
 104    LLVMPositionBuilderAtEnd(builder, block);
 105
 106    rgba = lp_build_fetch_rgba_aos(builder, desc, packed_ptr, i, j);
 107
 108    LLVMBuildStore(builder, rgba, rgba_ptr);
 109
 110    LLVMBuildRetVoid(builder);
 111
 112    LLVMDisposeBuilder(builder);
 113    return func;
 114 }
 115
 116
 117 PIPE_ALIGN_STACK
 118 static boolean
 119 test_format(unsigned verbose, FILE *fp,
 120             const struct util_format_description *desc,
 121             const struct util_format_test_case *test)
 122 {
 123    LLVMValueRef fetch = NULL;
 124    LLVMPassManagerRef pass = NULL;
 125    fetch_ptr_t fetch_ptr;
 126    float unpacked[4];
 127    boolean success;
 128    unsigned i, j, k;
 129
 130    fetch = add_fetch_rgba_test(lp_build_module, desc);
 131
 132    if (LLVMVerifyFunction(fetch, LLVMPrintMessageAction)) {
 133       LLVMDumpValue(fetch);
 134       abort();
 135    }
 136
 137 #if 0
 138    pass = LLVMCreatePassManager();
 139    LLVMAddTargetData(LLVMGetExecutionEngineTargetData(lp_build_engine), pass);
 140    /* These are the passes currently listed in llvm-c/Transforms/Scalar.h,
 141     * but there are more on SVN. */
 142    LLVMAddConstantPropagationPass(pass);
 143    LLVMAddInstructionCombiningPass(pass);
 144    LLVMAddPromoteMemoryToRegisterPass(pass);
 145    LLVMAddGVNPass(pass);
 146    LLVMAddCFGSimplificationPass(pass);
 147    LLVMRunPassManager(pass, lp_build_module);
 148 #else
 149    (void)pass;
 150 #endif
 151
 152    fetch_ptr = (fetch_ptr_t) LLVMGetPointerToGlobal(lp_build_engine, fetch);
 153
 154    for (i = 0; i < desc->block.height; ++i) {
 155       for (j = 0; j < desc->block.width; ++j) {
 156
 157          memset(unpacked, 0, sizeof unpacked);
 158
 159          fetch_ptr(unpacked, test->packed, j, i);
 160
 161          success = TRUE;
 162          for(k = 0; k < 4; ++k)
 163             if (fabs((float)test->unpacked[i][j][k] - unpacked[k]) > FLT_EPSILON)
 164                success = FALSE;
 165
 166          if (!success) {
 167             printf("FAILED\n");
 168             printf("  Packed: %02x %02x %02x %02x\n",
 169                    test->packed[0], test->packed[1], test->packed[2], test->packed[3]);
 170             printf("  Unpacked (%u,%u): %f %f %f %f obtained\n",
 171                    j, i,
 172                    unpacked[0], unpacked[1], unpacked[2], unpacked[3]);
 173             printf("                  %f %f %f %f expected\n",
 174                    test->unpacked[i][j][0],
 175                    test->unpacked[i][j][1],
 176                    test->unpacked[i][j][2],
 177                    test->unpacked[i][j][3]);
 178          }
 179       }
 180    }
 181
 182    if (!success)
 183       LLVMDumpValue(fetch);
 184
 185    LLVMFreeMachineCodeForFunction(lp_build_engine, fetch);
 186    LLVMDeleteFunction(fetch);
 187
 188    if(pass)
 189       LLVMDisposePassManager(pass);
 190
 191    if(fp)
 192       write_tsv_row(fp, desc, success);
 193
 194    return success;
 195 }
 196
 197
 198
 199 static boolean
 200 test_one(unsigned verbose, FILE *fp,
 201          const struct util_format_description *format_desc)
 202 {
 203    unsigned i;
 204    boolean first = TRUE;
 205    boolean success = TRUE;
 206
 207    for (i = 0; i < util_format_nr_test_cases; ++i) {
 208       const struct util_format_test_case *test = &util_format_test_cases[i];
 209
 210       if (test->format == format_desc->format) {
 211
 212          if (first) {
 213             printf("Testing %s ...\n",
 214                    format_desc->name);
 215             first = FALSE;
 216          }
 217
 218          if (!test_format(verbose, fp, format_desc, test)) {
 219            success = FALSE;
 220          }
 221       }
 222    }
 223
 224    return success;
 225 }
 226
 227
 228 boolean
 229 test_all(unsigned verbose, FILE *fp)
 230 {
 231    enum pipe_format format;
 232    boolean success = TRUE;
 233
 234    for (format = 1; format < PIPE_FORMAT_COUNT; ++format) {
 235       const struct util_format_description *format_desc;
 236
 237       format_desc = util_format_description(format);
 238       if (!format_desc) {
 239          continue;
 240       }
 241
 242       /*
 243        * TODO: test more
 244        */
 245
 246       if (format_desc->colorspace == UTIL_FORMAT_COLORSPACE_ZS) {
 247          continue;
 248       }
 249
 250       if (format_desc->layout == UTIL_FORMAT_LAYOUT_S3TC &&
 251           !util_format_s3tc_enabled) {
 252          continue;
 253       }
 254
 255       if (!test_one(verbose, fp, format_desc)) {
 256            success = FALSE;
 257       }
 258    }
 259
 260    return success;
 261 }
 262
 263
 264 boolean
 265 test_some(unsigned verbose, FILE *fp, unsigned long n)
 266 {
 267    return test_all(verbose, fp);
 268 }