| /* |
| * Copyright © 2015 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. |
| * |
| * Authors: |
| * Jason Ekstrand (jason@jlekstrand.net) |
| * |
| */ |
| |
| /* |
| * A simple executable that opens a SPIR-V shader, converts it to NIR, and |
| * dumps out the result. This should be useful for testing the |
| * spirv_to_nir code. |
| */ |
| |
| #include "spirv/nir_spirv.h" |
| |
| #include <sys/mman.h> |
| #include <sys/types.h> |
| #include <fcntl.h> |
| #include <unistd.h> |
| #include <stdio.h> |
| #include <errno.h> |
| #include <string.h> |
| |
| #define WORD_SIZE 4 |
| |
| int main(int argc, char **argv) |
| { |
| int fd = open(argv[1], O_RDONLY); |
| if (fd < 0) |
| { |
| fprintf(stderr, "Failed to open %s\n", argv[1]); |
| return 1; |
| } |
| |
| off_t len = lseek(fd, 0, SEEK_END); |
| if (len % WORD_SIZE != 0) |
| { |
| fprintf(stderr, "File length isn't a multiple of the word size\n"); |
| fprintf(stderr, "Are you sure this is a valid SPIR-V shader?\n"); |
| close(fd); |
| return 1; |
| } |
| |
| size_t word_count = len / WORD_SIZE; |
| |
| const void *map = mmap(NULL, len, PROT_READ, MAP_PRIVATE, fd, 0); |
| if (map == MAP_FAILED) |
| { |
| fprintf(stderr, "Failed to mmap the file: errno=%d, %s\n", |
| errno, strerror(errno)); |
| close(fd); |
| return 1; |
| } |
| |
| glsl_type_singleton_init_or_ref(); |
| |
| struct spirv_to_nir_options spirv_opts = {0}; |
| |
| nir_shader *nir = spirv_to_nir(map, word_count, NULL, 0, |
| MESA_SHADER_FRAGMENT, "main", |
| &spirv_opts, NULL); |
| nir_print_shader(nir, stderr); |
| |
| glsl_type_singleton_decref(); |
| |
| return 0; |
| } |