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