src/gallium/drivers/llvmpipe/lp_test_format.c

   1 /**************************************************************************
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   3  * Copyright 2009 VMware, Inc.
   4  * All Rights Reserved.
   5  *
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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
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  13  *
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  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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  26  **************************************************************************/
  27
  28
  29 #include <stdlib.h>
  30 #include <stdio.h>
  31
  32 #include <llvm-c/Core.h>
  33 #include <llvm-c/Analysis.h>
  34 #include <llvm-c/ExecutionEngine.h>
  35 #include <llvm-c/Target.h>
  36 #include <llvm-c/Transforms/Scalar.h>
  37
  38 #include "util/u_format.h"
  39
  40 #include "lp_bld_format.h"
  41
  42
  43 struct pixel_test_case
  44 {
  45    enum pipe_format format;
  46    uint32_t packed;
  47    double unpacked[4];
  48 };
  49
  50
  51 struct pixel_test_case test_cases[] =
  52 {
  53    {PIPE_FORMAT_R5G6B5_UNORM,   0x0000, {0.0, 0.0, 0.0, 1.0}},
  54    {PIPE_FORMAT_R5G6B5_UNORM,   0x001f, {0.0, 0.0, 1.0, 1.0}},
  55    {PIPE_FORMAT_R5G6B5_UNORM,   0x07e0, {0.0, 1.0, 0.0, 1.0}},
  56    {PIPE_FORMAT_R5G6B5_UNORM,   0xf800, {1.0, 0.0, 0.0, 1.0}},
  57    {PIPE_FORMAT_R5G6B5_UNORM,   0xffff, {1.0, 1.0, 1.0, 1.0}},
  58
  59    {PIPE_FORMAT_A1R5G5B5_UNORM, 0x0000, {0.0, 0.0, 0.0, 0.0}},
  60    {PIPE_FORMAT_A1R5G5B5_UNORM, 0x001f, {0.0, 0.0, 1.0, 0.0}},
  61    {PIPE_FORMAT_A1R5G5B5_UNORM, 0x03e0, {0.0, 1.0, 0.0, 0.0}},
  62    {PIPE_FORMAT_A1R5G5B5_UNORM, 0x7c00, {1.0, 0.0, 0.0, 0.0}},
  63    {PIPE_FORMAT_A1R5G5B5_UNORM, 0x8000, {0.0, 0.0, 0.0, 1.0}},
  64    {PIPE_FORMAT_A1R5G5B5_UNORM, 0xffff, {1.0, 1.0, 1.0, 1.0}},
  65
  66    {PIPE_FORMAT_A8R8G8B8_UNORM, 0x00000000, {0.0, 0.0, 0.0, 0.0}},
  67    {PIPE_FORMAT_A8R8G8B8_UNORM, 0x000000ff, {0.0, 0.0, 1.0, 0.0}},
  68    {PIPE_FORMAT_A8R8G8B8_UNORM, 0x0000ff00, {0.0, 1.0, 0.0, 0.0}},
  69    {PIPE_FORMAT_A8R8G8B8_UNORM, 0x00ff0000, {1.0, 0.0, 0.0, 0.0}},
  70    {PIPE_FORMAT_A8R8G8B8_UNORM, 0xff000000, {0.0, 0.0, 0.0, 1.0}},
  71    {PIPE_FORMAT_A8R8G8B8_UNORM, 0xffffffff, {1.0, 1.0, 1.0, 1.0}},
  72
  73 #if 0
  74    {PIPE_FORMAT_R8G8B8A8_UNORM, 0x00000000, {0.0, 0.0, 0.0, 0.0}},
  75    {PIPE_FORMAT_R8G8B8A8_UNORM, 0x000000ff, {0.0, 0.0, 0.0, 1.0}},
  76    {PIPE_FORMAT_R8G8B8A8_UNORM, 0x0000ff00, {0.0, 0.0, 1.0, 0.0}},
  77    {PIPE_FORMAT_R8G8B8A8_UNORM, 0x00ff0000, {0.0, 1.0, 0.0, 0.0}},
  78    {PIPE_FORMAT_R8G8B8A8_UNORM, 0xff000000, {1.0, 0.0, 0.0, 0.0}},
  79    {PIPE_FORMAT_R8G8B8A8_UNORM, 0xffffffff, {1.0, 1.0, 1.0, 1.0}},
  80 #endif
  81
  82    {PIPE_FORMAT_B8G8R8A8_UNORM, 0x00000000, {0.0, 0.0, 0.0, 0.0}},
  83    {PIPE_FORMAT_B8G8R8A8_UNORM, 0x000000ff, {0.0, 0.0, 0.0, 1.0}},
  84    {PIPE_FORMAT_B8G8R8A8_UNORM, 0x0000ff00, {1.0, 0.0, 0.0, 0.0}},
  85    {PIPE_FORMAT_B8G8R8A8_UNORM, 0x00ff0000, {0.0, 1.0, 0.0, 0.0}},
  86    {PIPE_FORMAT_B8G8R8A8_UNORM, 0xff000000, {0.0, 0.0, 1.0, 0.0}},
  87    {PIPE_FORMAT_B8G8R8A8_UNORM, 0xffffffff, {1.0, 1.0, 1.0, 1.0}},
  88 };
  89
  90
  91 typedef void (*load_ptr_t)(const void *, float *);
  92
  93
  94 static LLVMValueRef
  95 add_load_rgba_test(LLVMModuleRef module,
  96                    enum pipe_format format)
  97 {
  98    LLVMTypeRef args[2];
  99    LLVMValueRef func;
 100    LLVMValueRef ptr;
 101    LLVMValueRef rgba_ptr;
 102    LLVMBasicBlockRef block;
 103    LLVMBuilderRef builder;
 104    LLVMValueRef rgba;
 105
 106    args[0] = LLVMPointerType(LLVMInt8Type(), 0);
 107    args[1] = LLVMPointerType(LLVMVectorType(LLVMFloatType(), 4), 0);
 108
 109    func = LLVMAddFunction(module, "load", LLVMFunctionType(LLVMVoidType(), args, 2, 0));
 110    LLVMSetFunctionCallConv(func, LLVMCCallConv);
 111    ptr = LLVMGetParam(func, 0);
 112    rgba_ptr = LLVMGetParam(func, 1);
 113
 114    block = LLVMAppendBasicBlock(func, "entry");
 115    builder = LLVMCreateBuilder();
 116    LLVMPositionBuilderAtEnd(builder, block);
 117
 118    rgba = lp_build_load_rgba_aos(builder, format, ptr);
 119    LLVMBuildStore(builder, rgba, rgba_ptr);
 120
 121    LLVMBuildRetVoid(builder);
 122
 123    LLVMDisposeBuilder(builder);
 124    return func;
 125 }
 126
 127
 128 typedef void (*store_ptr_t)(void *, const float *);
 129
 130
 131 static LLVMValueRef
 132 add_store_rgba_test(LLVMModuleRef module,
 133                     enum pipe_format format)
 134 {
 135    LLVMTypeRef args[2];
 136    LLVMValueRef func;
 137    LLVMValueRef ptr;
 138    LLVMValueRef rgba_ptr;
 139    LLVMBasicBlockRef block;
 140    LLVMBuilderRef builder;
 141    LLVMValueRef rgba;
 142
 143    args[0] = LLVMPointerType(LLVMInt8Type(), 0);
 144    args[1] = LLVMPointerType(LLVMVectorType(LLVMFloatType(), 4), 0);
 145
 146    func = LLVMAddFunction(module, "store", LLVMFunctionType(LLVMVoidType(), args, 2, 0));
 147    LLVMSetFunctionCallConv(func, LLVMCCallConv);
 148    ptr = LLVMGetParam(func, 0);
 149    rgba_ptr = LLVMGetParam(func, 1);
 150
 151    block = LLVMAppendBasicBlock(func, "entry");
 152    builder = LLVMCreateBuilder();
 153    LLVMPositionBuilderAtEnd(builder, block);
 154
 155    rgba = LLVMBuildLoad(builder, rgba_ptr, "");
 156
 157    lp_build_store_rgba_aos(builder, format, ptr, rgba);
 158
 159    LLVMBuildRetVoid(builder);
 160
 161    LLVMDisposeBuilder(builder);
 162    return func;
 163 }
 164
 165
 166 static boolean
 167 test_format(const struct pixel_test_case *test)
 168 {
 169    LLVMModuleRef module = NULL;
 170    LLVMValueRef load = NULL;
 171    LLVMValueRef store = NULL;
 172    LLVMExecutionEngineRef engine = NULL;
 173    LLVMModuleProviderRef provider = NULL;
 174    LLVMPassManagerRef pass = NULL;
 175    char *error = NULL;
 176    const struct util_format_description *desc;
 177    load_ptr_t load_ptr;
 178    store_ptr_t store_ptr;
 179    float unpacked[4];
 180    unsigned packed;
 181    boolean success;
 182    unsigned i;
 183
 184    desc = util_format_description(test->format);
 185    fprintf(stderr, "%s\n", desc->name);
 186
 187    module = LLVMModuleCreateWithName("test");
 188
 189    load = add_load_rgba_test(module, test->format);
 190    store = add_store_rgba_test(module, test->format);
 191
 192    if(LLVMVerifyModule(module, LLVMPrintMessageAction, &error)) {
 193       LLVMDumpModule(module);
 194       abort();
 195    }
 196    LLVMDisposeMessage(error);
 197
 198    provider = LLVMCreateModuleProviderForExistingModule(module);
 199    if (LLVMCreateJITCompiler(&engine, provider, 1, &error)) {
 200       fprintf(stderr, "%s\n", error);
 201       LLVMDisposeMessage(error);
 202       abort();
 203    }
 204
 205 #if 0
 206    pass = LLVMCreatePassManager();
 207    LLVMAddTargetData(LLVMGetExecutionEngineTargetData(engine), pass);
 208    /* These are the passes currently listed in llvm-c/Transforms/Scalar.h,
 209     * but there are more on SVN. */
 210    LLVMAddConstantPropagationPass(pass);
 211    LLVMAddInstructionCombiningPass(pass);
 212    LLVMAddPromoteMemoryToRegisterPass(pass);
 213    LLVMAddGVNPass(pass);
 214    LLVMAddCFGSimplificationPass(pass);
 215    LLVMRunPassManager(pass, module);
 216 #else
 217    (void)pass;
 218 #endif
 219
 220    load_ptr  = (load_ptr_t) LLVMGetPointerToGlobal(engine, load);
 221    store_ptr = (store_ptr_t)LLVMGetPointerToGlobal(engine, store);
 222
 223    memset(unpacked, 0, sizeof unpacked);
 224    packed = 0;
 225
 226    load_ptr(&test->packed, unpacked);
 227    store_ptr(&packed, unpacked);
 228
 229    success = TRUE;
 230    if(test->packed != packed)
 231       success = FALSE;
 232    for(i = 0; i < 4; ++i)
 233       if(test->unpacked[i] != unpacked[i])
 234          success = FALSE;
 235
 236    if (!success) {
 237       printf("FAILED\n");
 238       printf("  Packed: %08x\n", test->packed);
 239       printf("          %08x\n", packed);
 240       printf("  Unpacked: %f %f %f %f\n", unpacked[0], unpacked[1], unpacked[2], unpacked[3]);
 241       printf("            %f %f %f %f\n", test->unpacked[0], test->unpacked[1], test->unpacked[2], test->unpacked[3]);
 242       LLVMDumpModule(module);
 243    }
 244
 245    LLVMFreeMachineCodeForFunction(engine, store);
 246    LLVMFreeMachineCodeForFunction(engine, load);
 247
 248    LLVMDisposeExecutionEngine(engine);
 249    if(pass)
 250       LLVMDisposePassManager(pass);
 251
 252    return success;
 253 }
 254
 255
 256 int main(int argc, char **argv)
 257 {
 258    unsigned i;
 259    int ret;
 260
 261 #ifdef LLVM_NATIVE_ARCH
 262    LLVMLinkInJIT();
 263    LLVMInitializeNativeTarget();
 264 #endif
 265
 266    for (i = 0; i < sizeof(test_cases)/sizeof(test_cases[0]); ++i)
 267       if(!test_format(&test_cases[i]))
 268         ret = 1;
 269
 270    return ret;
 271 }