1 /* 2 * Copyright 2015 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 DEALINGS 21 * IN THE SOFTWARE. 22 * 23 * Authors: 24 * Jason Ekstrand (jason (at) jlekstrand.net) 25 * 26 */ 27 28 /* 29 * A simple executable that opens a SPIR-V shader, converts it to NIR, and 30 * dumps out the result. This should be useful for testing the 31 * spirv_to_nir code. 32 */ 33 34 #include "spirv/nir_spirv.h" 35 36 #include <sys/mman.h> 37 #include <sys/types.h> 38 #include <fcntl.h> 39 #include <unistd.h> 40 #include <stdio.h> 41 #include <errno.h> 42 #include <string.h> 43 44 #define WORD_SIZE 4 45 46 int main(int argc, char **argv) 47 { 48 int fd = open(argv[1], O_RDONLY); 49 if (fd < 0) 50 { 51 fprintf(stderr, "Failed to open %s\n", argv[1]); 52 return 1; 53 } 54 55 off_t len = lseek(fd, 0, SEEK_END); 56 if (len % WORD_SIZE != 0) 57 { 58 fprintf(stderr, "File length isn't a multiple of the word size\n"); 59 fprintf(stderr, "Are you sure this is a valid SPIR-V shader?\n"); 60 close(fd); 61 return 1; 62 } 63 64 size_t word_count = len / WORD_SIZE; 65 66 const void *map = mmap(NULL, len, PROT_READ, MAP_PRIVATE, fd, 0); 67 if (map == MAP_FAILED) 68 { 69 fprintf(stderr, "Failed to mmap the file: errno=%d, %s\n", 70 errno, strerror(errno)); 71 close(fd); 72 return 1; 73 } 74 75 nir_function *func = spirv_to_nir(map, word_count, NULL, 0, 76 MESA_SHADER_FRAGMENT, "main", NULL, NULL); 77 nir_print_shader(func->shader, stderr); 78 79 return 0; 80 } 81
