src/glsl/test.cpp

   1 /*
   2  * Copyright © 2011 Intel Corporation
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8  * and/or sell copies of the Software, and to permit persons to whom the
   9  * Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice (including the next
  12  * paragraph) shall be included in all copies or substantial portions of the
  13  * Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  18  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  20  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  21  * DEALINGS IN THE SOFTWARE.
  22  */
  23
  24 /**
  25  * \file test.cpp
  26  *
  27  * Standalone tests for the GLSL compiler.
  28  *
  29  * This file provides a standalone executable which can be used to
  30  * test components of the GLSL.
  31  *
  32  * Each test is a function with the same signature as main().  The
  33  * main function interprets its first argument as the name of the test
  34  * to run, strips out that argument, and then calls the test function.
  35  */
  36
  37 #include <stdio.h>
  38 #include <stdlib.h>
  39 #include <string.h>
  40
  41 #include "test_optpass.h"
  42
  43 /**
  44  * Print proper usage and exit with failure.
  45  */
  46 static void
  47 usage_fail(const char *name)
  48 {
  49    printf("*** usage: %s <command> <options>\n", name);
  50    printf("\n");
  51    printf("Possible commands are:\n");
  52    printf("  optpass: test an optimization pass in isolation\n");
  53    exit(EXIT_FAILURE);
  54 }
  55
  56 static const char *extract_command_from_argv(int *argc, char **argv)
  57 {
  58    if (*argc < 2) {
  59       usage_fail(argv[0]);
  60    }
  61    const char *command = argv[1];
  62    --*argc;
  63    memmove(&argv[1], &argv[2], (*argc) * sizeof(argv[1]));
  64    return command;
  65 }
  66
  67 int main(int argc, char **argv)
  68 {
  69    const char *command = extract_command_from_argv(&argc, argv);
  70    if (strcmp(command, "optpass") == 0) {
  71       return test_optpass(argc, argv);
  72    } else {
  73       usage_fail(argv[0]);
  74    }
  75
  76    /* Execution should never reach here. */
  77    return EXIT_FAILURE;
  78 }