src/compiler/glsl/main.cpp

   1 /*
   2  * Copyright © 2008, 2009 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 #include <stdlib.h>
  25 #include <stdio.h>
  26 #include <getopt.h>
  27
  28 /** @file main.cpp
  29  *
  30  * This file is the main() routine and scaffolding for producing
  31  * builtin_compiler (which doesn't include builtins itself and is used
  32  * to generate the profile information for builtin_function.cpp), and
  33  * for glsl_compiler (which does include builtins and can be used to
  34  * offline compile GLSL code and examine the resulting GLSL IR.
  35  */
  36
  37 #include "main/mtypes.h"
  38 #include "standalone.h"
  39
  40 static struct standalone_options options;
  41
  42 const struct option compiler_opts[] = {
  43    { "dump-ast", no_argument, &options.dump_ast, 1 },
  44    { "dump-hir", no_argument, &options.dump_hir, 1 },
  45    { "dump-lir", no_argument, &options.dump_lir, 1 },
  46    { "dump-builder", no_argument, &options.dump_builder, 1 },
  47    { "link",     no_argument, &options.do_link,  1 },
  48    { "just-log", no_argument, &options.just_log, 1 },
  49    { "lower-precision", no_argument, &options.lower_precision, 1 },
  50    { "version",  required_argument, NULL, 'v' },
  51    { NULL, 0, NULL, 0 }
  52 };
  53
  54 /**
  55  * \brief Print proper usage and exit with failure.
  56  */
  57 static void
  58 usage_fail(const char *name)
  59 {
  60
  61    const char *header =
  62       "usage: %s [options] <file.vert | file.tesc | file.tese | file.geom | file.frag | file.comp>\n"
  63       "\n"
  64       "Possible options are:\n";
  65    printf(header, name);
  66    for (const struct option *o = compiler_opts; o->name != 0; ++o) {
  67       printf("    --%s", o->name);
  68       if (o->has_arg == required_argument)
  69          printf(" (mandatory)");
  70       printf("\n");
  71    }
  72    exit(EXIT_FAILURE);
  73 }
  74
  75 int
  76 main(int argc, char * const* argv)
  77 {
  78    int status = EXIT_SUCCESS;
  79
  80    int c;
  81    int idx = 0;
  82    while ((c = getopt_long(argc, argv, "", compiler_opts, &idx)) != -1) {
  83       switch (c) {
  84       case 'v':
  85          options.glsl_version = strtol(optarg, NULL, 10);
  86          break;
  87       default:
  88          break;
  89       }
  90    }
  91
  92    if (argc <= optind)
  93       usage_fail(argv[0]);
  94
  95    struct gl_shader_program *whole_program;
  96    static struct gl_context local_ctx;
  97
  98    whole_program = standalone_compile_shader(&options, argc - optind,
  99                                              &argv[optind], &local_ctx);
 100
 101    if (!whole_program)
 102       usage_fail(argv[0]);
 103
 104    standalone_compiler_cleanup(whole_program);
 105
 106    return status;
 107 }