src/gallium/drivers/llvmpipe/lp_test_format.c

   1 /**************************************************************************
   2  *
   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
  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  *
  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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  25  *
  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_flow.h"
  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    struct lp_build_loop_state loop;
 107
 108    args[0] = LLVMPointerType(LLVMInt8Type(), 0);
 109    args[1] = LLVMPointerType(LLVMVectorType(LLVMFloatType(), 4), 0);
 110
 111    func = LLVMAddFunction(module, "load", LLVMFunctionType(LLVMVoidType(), args, 2, 0));
 112    LLVMSetFunctionCallConv(func, LLVMCCallConv);
 113    ptr = LLVMGetParam(func, 0);
 114    rgba_ptr = LLVMGetParam(func, 1);
 115
 116    block = LLVMAppendBasicBlock(func, "entry");
 117    builder = LLVMCreateBuilder();
 118    LLVMPositionBuilderAtEnd(builder, block);
 119
 120    lp_build_loop_begin(builder, LLVMConstInt(LLVMInt32Type(), 1, 0), &loop);
 121
 122    rgba = lp_build_load_rgba_aos(builder, format, ptr);
 123    LLVMBuildStore(builder, rgba, rgba_ptr);
 124
 125    lp_build_loop_end(builder, LLVMConstInt(LLVMInt32Type(), 4, 0), NULL, &loop);
 126
 127    LLVMBuildRetVoid(builder);
 128
 129    LLVMDisposeBuilder(builder);
 130    return func;
 131 }
 132
 133
 134 typedef void (*store_ptr_t)(void *, const float *);
 135
 136
 137 static LLVMValueRef
 138 add_store_rgba_test(LLVMModuleRef module,
 139                     enum pipe_format format)
 140 {
 141    LLVMTypeRef args[2];
 142    LLVMValueRef func;
 143    LLVMValueRef ptr;
 144    LLVMValueRef rgba_ptr;
 145    LLVMBasicBlockRef block;
 146    LLVMBuilderRef builder;
 147    LLVMValueRef rgba;
 148
 149    args[0] = LLVMPointerType(LLVMInt8Type(), 0);
 150    args[1] = LLVMPointerType(LLVMVectorType(LLVMFloatType(), 4), 0);
 151
 152    func = LLVMAddFunction(module, "store", LLVMFunctionType(LLVMVoidType(), args, 2, 0));
 153    LLVMSetFunctionCallConv(func, LLVMCCallConv);
 154    ptr = LLVMGetParam(func, 0);
 155    rgba_ptr = LLVMGetParam(func, 1);
 156
 157    block = LLVMAppendBasicBlock(func, "entry");
 158    builder = LLVMCreateBuilder();
 159    LLVMPositionBuilderAtEnd(builder, block);
 160
 161    rgba = LLVMBuildLoad(builder, rgba_ptr, "");
 162
 163    lp_build_store_rgba_aos(builder, format, ptr, rgba);
 164
 165    LLVMBuildRetVoid(builder);
 166
 167    LLVMDisposeBuilder(builder);
 168    return func;
 169 }
 170
 171
 172 static boolean
 173 test_format(const struct pixel_test_case *test)
 174 {
 175    LLVMModuleRef module = NULL;
 176    LLVMValueRef load = NULL;
 177    LLVMValueRef store = NULL;
 178    LLVMExecutionEngineRef engine = NULL;
 179    LLVMModuleProviderRef provider = NULL;
 180    LLVMPassManagerRef pass = NULL;
 181    char *error = NULL;
 182    const struct util_format_description *desc;
 183    load_ptr_t load_ptr;
 184    store_ptr_t store_ptr;
 185    float unpacked[4];
 186    unsigned packed;
 187    boolean success;
 188    unsigned i;
 189
 190    desc = util_format_description(test->format);
 191    fprintf(stderr, "%s\n", desc->name);
 192
 193    module = LLVMModuleCreateWithName("test");
 194
 195    load = add_load_rgba_test(module, test->format);
 196    store = add_store_rgba_test(module, test->format);
 197
 198    if(LLVMVerifyModule(module, LLVMPrintMessageAction, &error)) {
 199       LLVMDumpModule(module);
 200       abort();
 201    }
 202    LLVMDisposeMessage(error);
 203
 204    provider = LLVMCreateModuleProviderForExistingModule(module);
 205    if (LLVMCreateJITCompiler(&engine, provider, 1, &error)) {
 206       fprintf(stderr, "%s\n", error);
 207       LLVMDisposeMessage(error);
 208       abort();
 209    }
 210
 211 #if 0
 212    pass = LLVMCreatePassManager();
 213    LLVMAddTargetData(LLVMGetExecutionEngineTargetData(engine), pass);
 214    /* These are the passes currently listed in llvm-c/Transforms/Scalar.h,
 215     * but there are more on SVN. */
 216    LLVMAddConstantPropagationPass(pass);
 217    LLVMAddInstructionCombiningPass(pass);
 218    LLVMAddPromoteMemoryToRegisterPass(pass);
 219    LLVMAddGVNPass(pass);
 220    LLVMAddCFGSimplificationPass(pass);
 221    LLVMRunPassManager(pass, module);
 222 #else
 223    (void)pass;
 224 #endif
 225
 226    load_ptr  = (load_ptr_t) LLVMGetPointerToGlobal(engine, load);
 227    store_ptr = (store_ptr_t)LLVMGetPointerToGlobal(engine, store);
 228
 229    memset(unpacked, 0, sizeof unpacked);
 230    packed = 0;
 231
 232    load_ptr(&test->packed, unpacked);
 233    store_ptr(&packed, unpacked);
 234
 235    success = TRUE;
 236    if(test->packed != packed)
 237       success = FALSE;
 238    for(i = 0; i < 4; ++i)
 239       if(test->unpacked[i] != unpacked[i])
 240          success = FALSE;
 241
 242    if (!success) {
 243       printf("FAILED\n");
 244       printf("  Packed: %08x\n", test->packed);
 245       printf("          %08x\n", packed);
 246       printf("  Unpacked: %f %f %f %f\n", unpacked[0], unpacked[1], unpacked[2], unpacked[3]);
 247       printf("            %f %f %f %f\n", test->unpacked[0], test->unpacked[1], test->unpacked[2], test->unpacked[3]);
 248       LLVMDumpModule(module);
 249    }
 250
 251    LLVMFreeMachineCodeForFunction(engine, store);
 252    LLVMFreeMachineCodeForFunction(engine, load);
 253
 254    LLVMDisposeExecutionEngine(engine);
 255    if(pass)
 256       LLVMDisposePassManager(pass);
 257
 258    return success;
 259 }
 260
 261
 262 int main(int argc, char **argv)
 263 {
 264    unsigned i;
 265    int ret;
 266
 267    for (i = 0; i < sizeof(test_cases)/sizeof(test_cases[0]); ++i)
 268       if(!test_format(&test_cases[i]))
 269         ret = 1;
 270
 271    return ret;
 272 }