diff options
author | Ian Romanick <ian.d.romanick@intel.com> | 2010-08-16 19:08:53 -0700 |
---|---|---|
committer | Ian Romanick <ian.d.romanick@intel.com> | 2010-08-16 19:08:53 -0700 |
commit | 6c03c576cc49bbb008de66d374f4302ff0fe0390 (patch) | |
tree | 7ddeb3ee88532d9aef8728b9aa256edf7c125247 /src/glsl/main.cpp | |
parent | 15a3b42e135a3a2cb463ec3cff80a55dd8528051 (diff) | |
parent | a433cd286c60eb9d4c2114f042709eda0f3de676 (diff) |
Merge branch 'glsl2'
Conflicts:
src/mesa/program/prog_optimize.c
Diffstat (limited to 'src/glsl/main.cpp')
-rw-r--r-- | src/glsl/main.cpp | 283 |
1 files changed, 283 insertions, 0 deletions
diff --git a/src/glsl/main.cpp b/src/glsl/main.cpp new file mode 100644 index 0000000000..24d6076d07 --- /dev/null +++ b/src/glsl/main.cpp @@ -0,0 +1,283 @@ +/* + * Copyright © 2008, 2009 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER + * DEALINGS IN THE SOFTWARE. + */ +#include <cstdlib> +#include <cstdio> +#include <getopt.h> + +#include <sys/types.h> +#include <sys/stat.h> +#include <fcntl.h> +#include <unistd.h> + +#include "ast.h" +#include "glsl_parser_extras.h" +#include "glsl_parser.h" +#include "ir_optimization.h" +#include "ir_print_visitor.h" +#include "program.h" + +extern "C" struct gl_shader * +_mesa_new_shader(GLcontext *ctx, GLuint name, GLenum type); + +/* Copied from shader_api.c for the stand-alone compiler. + */ +struct gl_shader * +_mesa_new_shader(GLcontext *ctx, GLuint name, GLenum type) +{ + struct gl_shader *shader; + + (void) ctx; + + assert(type == GL_FRAGMENT_SHADER || type == GL_VERTEX_SHADER); + shader = talloc_zero(NULL, struct gl_shader); + if (shader) { + shader->Type = type; + shader->Name = name; + shader->RefCount = 1; + } + return shader; +} + +/* Returned string will have 'ctx' as its talloc owner. */ +static char * +load_text_file(void *ctx, const char *file_name) +{ + char *text = NULL; + struct stat st; + ssize_t total_read = 0; + int fd = open(file_name, O_RDONLY); + + if (fd < 0) { + return NULL; + } + + if (fstat(fd, & st) == 0) { + text = (char *) talloc_size(ctx, st.st_size + 1); + if (text != NULL) { + do { + ssize_t bytes = read(fd, text + total_read, + st.st_size - total_read); + if (bytes < 0) { + free(text); + text = NULL; + break; + } + + if (bytes == 0) { + break; + } + + total_read += bytes; + } while (total_read < st.st_size); + + text[total_read] = '\0'; + } + } + + close(fd); + + return text; +} + + +void +usage_fail(const char *name) +{ + printf("%s <filename.frag|filename.vert>\n", name); + exit(EXIT_FAILURE); +} + + +int dump_ast = 0; +int dump_hir = 0; +int dump_lir = 0; +int do_link = 0; + +const struct option compiler_opts[] = { + { "dump-ast", 0, &dump_ast, 1 }, + { "dump-hir", 0, &dump_hir, 1 }, + { "dump-lir", 0, &dump_lir, 1 }, + { "link", 0, &do_link, 1 }, + { NULL, 0, NULL, 0 } +}; + +void +compile_shader(struct gl_shader *shader) +{ + struct _mesa_glsl_parse_state *state = + new(shader) _mesa_glsl_parse_state(NULL, shader->Type, shader); + + const char *source = shader->Source; + state->error = preprocess(state, &source, &state->info_log, + state->extensions); + + if (!state->error) { + _mesa_glsl_lexer_ctor(state, source); + _mesa_glsl_parse(state); + _mesa_glsl_lexer_dtor(state); + } + + 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"); + } + + shader->ir = new(shader) exec_list; + if (!state->error && !state->translation_unit.is_empty()) + _mesa_ast_to_hir(shader->ir, state); + + /* Print out the unoptimized IR. */ + if (!state->error && dump_hir) { + validate_ir_tree(shader->ir); + _mesa_print_ir(shader->ir, state); + } + + /* Optimization passes */ + if (!state->error && !shader->ir->is_empty()) { + bool progress; + do { + progress = false; + + progress = do_function_inlining(shader->ir) || progress; + progress = do_if_simplification(shader->ir) || progress; + progress = do_copy_propagation(shader->ir) || progress; + progress = do_dead_code_local(shader->ir) || progress; + progress = do_dead_code_unlinked(shader->ir) || progress; + progress = do_tree_grafting(shader->ir) || progress; + progress = do_constant_propagation(shader->ir) || progress; + progress = do_constant_variable_unlinked(shader->ir) || progress; + progress = do_constant_folding(shader->ir) || progress; + progress = do_algebraic(shader->ir) || progress; + progress = do_vec_index_to_swizzle(shader->ir) || progress; + progress = do_vec_index_to_cond_assign(shader->ir) || progress; + progress = do_swizzle_swizzle(shader->ir) || progress; + } while (progress); + + validate_ir_tree(shader->ir); + } + + + /* Print out the resulting IR */ + if (!state->error && dump_lir) { + _mesa_print_ir(shader->ir, state); + } + + shader->symbols = state->symbols; + shader->CompileStatus = !state->error; + shader->Version = state->language_version; + memcpy(shader->builtins_to_link, state->builtins_to_link, + sizeof(shader->builtins_to_link[0]) * state->num_builtins_to_link); + shader->num_builtins_to_link = state->num_builtins_to_link; + + if (shader->InfoLog) + talloc_free(shader->InfoLog); + + shader->InfoLog = state->info_log; + + /* Retain any live IR, but trash the rest. */ + reparent_ir(shader->ir, shader); + + talloc_free(state); + + return; +} + +int +main(int argc, char **argv) +{ + int status = EXIT_SUCCESS; + + int c; + int idx = 0; + while ((c = getopt_long(argc, argv, "", compiler_opts, &idx)) != -1) + /* empty */ ; + + + if (argc <= optind) + usage_fail(argv[0]); + + struct gl_shader_program *whole_program; + + whole_program = talloc_zero (NULL, struct gl_shader_program); + assert(whole_program != NULL); + + for (/* empty */; argc > optind; optind++) { + whole_program->Shaders = (struct gl_shader **) + talloc_realloc(whole_program, whole_program->Shaders, + struct gl_shader *, whole_program->NumShaders + 1); + assert(whole_program->Shaders != NULL); + + struct gl_shader *shader = talloc_zero(whole_program, gl_shader); + + whole_program->Shaders[whole_program->NumShaders] = shader; + whole_program->NumShaders++; + + const unsigned len = strlen(argv[optind]); + if (len < 6) + usage_fail(argv[0]); + + const char *const ext = & argv[optind][len - 5]; + if (strncmp(".vert", ext, 5) == 0) + shader->Type = GL_VERTEX_SHADER; + else if (strncmp(".geom", ext, 5) == 0) + shader->Type = GL_GEOMETRY_SHADER; + else if (strncmp(".frag", ext, 5) == 0) + shader->Type = GL_FRAGMENT_SHADER; + else + usage_fail(argv[0]); + + shader->Source = load_text_file(whole_program, argv[optind]); + if (shader->Source == NULL) { + printf("File \"%s\" does not exist.\n", argv[optind]); + exit(EXIT_FAILURE); + } + + compile_shader(shader); + + if (!shader->CompileStatus) { + printf("Info log for %s:\n%s\n", argv[optind], shader->InfoLog); + status = EXIT_FAILURE; + break; + } + } + + if ((status == EXIT_SUCCESS) && do_link) { + link_shaders(whole_program); + status = (whole_program->LinkStatus) ? EXIT_SUCCESS : EXIT_FAILURE; + + if (strlen(whole_program->InfoLog) > 0) + printf("Info log for linking:\n%s\n", whole_program->InfoLog); + } + + for (unsigned i = 0; i < whole_program->_NumLinkedShaders; i++) + talloc_free(whole_program->_LinkedShaders[i]); + + talloc_free(whole_program); + _mesa_glsl_release_types(); + _mesa_glsl_release_functions(); + + return status; +} |