diff options
Diffstat (limited to 'main.cpp')
| -rw-r--r-- | main.cpp | 32 |
1 files changed, 24 insertions, 8 deletions
@@ -22,6 +22,7 @@ */ #include <cstdlib> #include <cstdio> +#include <getopt.h> #include <sys/types.h> #include <sys/stat.h> @@ -86,6 +87,13 @@ usage_fail(const char *name) } +int dump_ast = 0; + +const struct option compiler_opts[] = { + { "dump-ast", 0, &dump_ast, 1 }, + { NULL, 0, NULL, 0 } +}; + int main(int argc, char **argv) { @@ -94,14 +102,20 @@ main(int argc, char **argv) size_t shader_len; exec_list instructions; - if (argc < 2) + int c; + int idx = 0; + while ((c = getopt_long(argc, argv, "", compiler_opts, &idx)) != -1) + /* empty */ ; + + + if (argc <= optind) usage_fail(argv[0]); - const unsigned len = strlen(argv[1]); + const unsigned len = strlen(argv[optind]); if (len < 6) usage_fail(argv[0]); - const char *const ext = & argv[1][len - 5]; + const char *const ext = & argv[optind][len - 5]; enum _mesa_glsl_parser_targets target; if (strncmp(".vert", ext, 5) == 0) target = vertex_shader; @@ -112,7 +126,7 @@ main(int argc, char **argv) else usage_fail(argv[0]); - shader = load_text_file(argv[1], & shader_len); + shader = load_text_file(argv[optind], & shader_len); memset(& state, 0, sizeof(state)); state.target = target; @@ -128,11 +142,13 @@ main(int argc, char **argv) _mesa_glsl_parse(& state); _mesa_glsl_lexer_dtor(& state); - foreach_list_const(n, &state.translation_unit) { - ast_node *ast = exec_node_data(ast_node, n, link); - ast->print(); + if (dump_ast) { + foreach_list_const(n, &state.translation_unit) { + ast_node *ast = exec_node_data(ast_node, n, link); + ast->print(); + } + printf("\n\n"); } - printf("\n\n"); if (!state.error && !state.translation_unit.is_empty()) _mesa_ast_to_hir(&instructions, &state); |