src/gallium/drivers/llvmpipe/lp_test_format.c

   1 /**************************************************************************
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   3  * Copyright 2009 VMware, Inc.
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   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
  12  * the following conditions:
  13  *
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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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  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_cpu_detect.h"
  39 #include "util/u_format.h"
  40
  41 #include "lp_bld_format.h"
  42
  43
  44 struct pixel_test_case
  45 {
  46    enum pipe_format format;
  47    uint32_t packed;
  48    double unpacked[4];
  49 };
  50
  51
  52 struct pixel_test_case test_cases[] =
  53 {
  54    {PIPE_FORMAT_R5G6B5_UNORM,   0x0000, {0.0, 0.0, 0.0, 1.0}},
  55    {PIPE_FORMAT_R5G6B5_UNORM,   0x001f, {0.0, 0.0, 1.0, 1.0}},
  56    {PIPE_FORMAT_R5G6B5_UNORM,   0x07e0, {0.0, 1.0, 0.0, 1.0}},
  57    {PIPE_FORMAT_R5G6B5_UNORM,   0xf800, {1.0, 0.0, 0.0, 1.0}},
  58    {PIPE_FORMAT_R5G6B5_UNORM,   0xffff, {1.0, 1.0, 1.0, 1.0}},
  59
  60    {PIPE_FORMAT_A1R5G5B5_UNORM, 0x0000, {0.0, 0.0, 0.0, 0.0}},
  61    {PIPE_FORMAT_A1R5G5B5_UNORM, 0x001f, {0.0, 0.0, 1.0, 0.0}},
  62    {PIPE_FORMAT_A1R5G5B5_UNORM, 0x03e0, {0.0, 1.0, 0.0, 0.0}},
  63    {PIPE_FORMAT_A1R5G5B5_UNORM, 0x7c00, {1.0, 0.0, 0.0, 0.0}},
  64    {PIPE_FORMAT_A1R5G5B5_UNORM, 0x8000, {0.0, 0.0, 0.0, 1.0}},
  65    {PIPE_FORMAT_A1R5G5B5_UNORM, 0xffff, {1.0, 1.0, 1.0, 1.0}},
  66
  67    {PIPE_FORMAT_A8R8G8B8_UNORM, 0x00000000, {0.0, 0.0, 0.0, 0.0}},
  68    {PIPE_FORMAT_A8R8G8B8_UNORM, 0x000000ff, {0.0, 0.0, 1.0, 0.0}},
  69    {PIPE_FORMAT_A8R8G8B8_UNORM, 0x0000ff00, {0.0, 1.0, 0.0, 0.0}},
  70    {PIPE_FORMAT_A8R8G8B8_UNORM, 0x00ff0000, {1.0, 0.0, 0.0, 0.0}},
  71    {PIPE_FORMAT_A8R8G8B8_UNORM, 0xff000000, {0.0, 0.0, 0.0, 1.0}},
  72    {PIPE_FORMAT_A8R8G8B8_UNORM, 0xffffffff, {1.0, 1.0, 1.0, 1.0}},
  73
  74 #if 0
  75    {PIPE_FORMAT_R8G8B8A8_UNORM, 0x00000000, {0.0, 0.0, 0.0, 0.0}},
  76    {PIPE_FORMAT_R8G8B8A8_UNORM, 0x000000ff, {0.0, 0.0, 0.0, 1.0}},
  77    {PIPE_FORMAT_R8G8B8A8_UNORM, 0x0000ff00, {0.0, 0.0, 1.0, 0.0}},
  78    {PIPE_FORMAT_R8G8B8A8_UNORM, 0x00ff0000, {0.0, 1.0, 0.0, 0.0}},
  79    {PIPE_FORMAT_R8G8B8A8_UNORM, 0xff000000, {1.0, 0.0, 0.0, 0.0}},
  80    {PIPE_FORMAT_R8G8B8A8_UNORM, 0xffffffff, {1.0, 1.0, 1.0, 1.0}},
  81 #endif
  82
  83    {PIPE_FORMAT_B8G8R8A8_UNORM, 0x00000000, {0.0, 0.0, 0.0, 0.0}},
  84    {PIPE_FORMAT_B8G8R8A8_UNORM, 0x000000ff, {0.0, 0.0, 0.0, 1.0}},
  85    {PIPE_FORMAT_B8G8R8A8_UNORM, 0x0000ff00, {1.0, 0.0, 0.0, 0.0}},
  86    {PIPE_FORMAT_B8G8R8A8_UNORM, 0x00ff0000, {0.0, 1.0, 0.0, 0.0}},
  87    {PIPE_FORMAT_B8G8R8A8_UNORM, 0xff000000, {0.0, 0.0, 1.0, 0.0}},
  88    {PIPE_FORMAT_B8G8R8A8_UNORM, 0xffffffff, {1.0, 1.0, 1.0, 1.0}},
  89 };
  90
  91
  92 typedef void (*load_ptr_t)(const void *, float *);
  93
  94
  95 static LLVMValueRef
  96 add_load_rgba_test(LLVMModuleRef module,
  97                    enum pipe_format format)
  98 {
  99    LLVMTypeRef args[2];
 100    LLVMValueRef func;
 101    LLVMValueRef ptr;
 102    LLVMValueRef rgba_ptr;
 103    LLVMBasicBlockRef block;
 104    LLVMBuilderRef builder;
 105    LLVMValueRef rgba;
 106
 107    args[0] = LLVMPointerType(LLVMInt8Type(), 0);
 108    args[1] = LLVMPointerType(LLVMVectorType(LLVMFloatType(), 4), 0);
 109
 110    func = LLVMAddFunction(module, "load", LLVMFunctionType(LLVMVoidType(), args, 2, 0));
 111    LLVMSetFunctionCallConv(func, LLVMCCallConv);
 112    ptr = LLVMGetParam(func, 0);
 113    rgba_ptr = LLVMGetParam(func, 1);
 114
 115    block = LLVMAppendBasicBlock(func, "entry");
 116    builder = LLVMCreateBuilder();
 117    LLVMPositionBuilderAtEnd(builder, block);
 118
 119    rgba = lp_build_load_rgba_aos(builder, format, ptr);
 120    LLVMBuildStore(builder, rgba, rgba_ptr);
 121
 122    LLVMBuildRetVoid(builder);
 123
 124    LLVMDisposeBuilder(builder);
 125    return func;
 126 }
 127
 128
 129 typedef void (*store_ptr_t)(void *, const float *);
 130
 131
 132 static LLVMValueRef
 133 add_store_rgba_test(LLVMModuleRef module,
 134                     enum pipe_format format)
 135 {
 136    LLVMTypeRef args[2];
 137    LLVMValueRef func;
 138    LLVMValueRef ptr;
 139    LLVMValueRef rgba_ptr;
 140    LLVMBasicBlockRef block;
 141    LLVMBuilderRef builder;
 142    LLVMValueRef rgba;
 143
 144    args[0] = LLVMPointerType(LLVMInt8Type(), 0);
 145    args[1] = LLVMPointerType(LLVMVectorType(LLVMFloatType(), 4), 0);
 146
 147    func = LLVMAddFunction(module, "store", LLVMFunctionType(LLVMVoidType(), args, 2, 0));
 148    LLVMSetFunctionCallConv(func, LLVMCCallConv);
 149    ptr = LLVMGetParam(func, 0);
 150    rgba_ptr = LLVMGetParam(func, 1);
 151
 152    block = LLVMAppendBasicBlock(func, "entry");
 153    builder = LLVMCreateBuilder();
 154    LLVMPositionBuilderAtEnd(builder, block);
 155
 156    rgba = LLVMBuildLoad(builder, rgba_ptr, "");
 157
 158    lp_build_store_rgba_aos(builder, format, ptr, rgba);
 159
 160    LLVMBuildRetVoid(builder);
 161
 162    LLVMDisposeBuilder(builder);
 163    return func;
 164 }
 165
 166
 167 static boolean
 168 test_format(const struct pixel_test_case *test)
 169 {
 170    LLVMModuleRef module = NULL;
 171    LLVMValueRef load = NULL;
 172    LLVMValueRef store = NULL;
 173    LLVMExecutionEngineRef engine = NULL;
 174    LLVMModuleProviderRef provider = NULL;
 175    LLVMPassManagerRef pass = NULL;
 176    char *error = NULL;
 177    const struct util_format_description *desc;
 178    load_ptr_t load_ptr;
 179    store_ptr_t store_ptr;
 180    float unpacked[4];
 181    unsigned packed;
 182    boolean success;
 183    unsigned i;
 184
 185    desc = util_format_description(test->format);
 186    fprintf(stderr, "%s\n", desc->name);
 187
 188    module = LLVMModuleCreateWithName("test");
 189
 190    load = add_load_rgba_test(module, test->format);
 191    store = add_store_rgba_test(module, test->format);
 192
 193    if(LLVMVerifyModule(module, LLVMPrintMessageAction, &error)) {
 194       LLVMDumpModule(module);
 195       abort();
 196    }
 197    LLVMDisposeMessage(error);
 198
 199    provider = LLVMCreateModuleProviderForExistingModule(module);
 200    if (LLVMCreateJITCompiler(&engine, provider, 1, &error)) {
 201       fprintf(stderr, "%s\n", error);
 202       LLVMDisposeMessage(error);
 203       abort();
 204    }
 205
 206 #if 0
 207    pass = LLVMCreatePassManager();
 208    LLVMAddTargetData(LLVMGetExecutionEngineTargetData(engine), pass);
 209    /* These are the passes currently listed in llvm-c/Transforms/Scalar.h,
 210     * but there are more on SVN. */
 211    LLVMAddConstantPropagationPass(pass);
 212    LLVMAddInstructionCombiningPass(pass);
 213    LLVMAddPromoteMemoryToRegisterPass(pass);
 214    LLVMAddGVNPass(pass);
 215    LLVMAddCFGSimplificationPass(pass);
 216    LLVMRunPassManager(pass, module);
 217 #else
 218    (void)pass;
 219 #endif
 220
 221    load_ptr  = (load_ptr_t) LLVMGetPointerToGlobal(engine, load);
 222    store_ptr = (store_ptr_t)LLVMGetPointerToGlobal(engine, store);
 223
 224    memset(unpacked, 0, sizeof unpacked);
 225    packed = 0;
 226
 227    load_ptr(&test->packed, unpacked);
 228    store_ptr(&packed, unpacked);
 229
 230    success = TRUE;
 231    if(test->packed != packed)
 232       success = FALSE;
 233    for(i = 0; i < 4; ++i)
 234       if(test->unpacked[i] != unpacked[i])
 235          success = FALSE;
 236
 237    if (!success) {
 238       printf("FAILED\n");
 239       printf("  Packed: %08x\n", test->packed);
 240       printf("          %08x\n", packed);
 241       printf("  Unpacked: %f %f %f %f\n", unpacked[0], unpacked[1], unpacked[2], unpacked[3]);
 242       printf("            %f %f %f %f\n", test->unpacked[0], test->unpacked[1], test->unpacked[2], test->unpacked[3]);
 243       LLVMDumpModule(module);
 244    }
 245
 246    LLVMFreeMachineCodeForFunction(engine, store);
 247    LLVMFreeMachineCodeForFunction(engine, load);
 248
 249    LLVMDisposeExecutionEngine(engine);
 250    if(pass)
 251       LLVMDisposePassManager(pass);
 252
 253    return success;
 254 }
 255
 256
 257 int main(int argc, char **argv)
 258 {
 259    unsigned i;
 260    int ret;
 261
 262 #ifdef LLVM_NATIVE_ARCH
 263    LLVMLinkInJIT();
 264    LLVMInitializeNativeTarget();
 265 #endif
 266
 267    util_cpu_detect();
 268
 269    for (i = 0; i < sizeof(test_cases)/sizeof(test_cases[0]); ++i)
 270       if(!test_format(&test_cases[i]))
 271         ret = 1;
 272
 273    return ret;
 274 }