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
usage_fail(const char * name)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 
extract_command_from_argv(int * argc,char ** argv)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 
main(int argc,char ** argv)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 }
79