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| 1 | +/* |
| 2 | + * Copyright (c) 2022 The Khronos Group Inc. |
| 3 | + * |
| 4 | + * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | + * you may not use this file except in compliance with the License. |
| 6 | + * You may obtain a copy of the License at |
| 7 | + * |
| 8 | + * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | + * |
| 10 | + * Unless required by applicable law or agreed to in writing, software |
| 11 | + * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | + * See the License for the specific language governing permissions and |
| 14 | + * limitations under the License. |
| 15 | + * |
| 16 | + * OpenCL is a trademark of Apple Inc. used under license by Khronos. |
| 17 | + */ |
| 18 | + |
| 19 | +#include "icd.h" |
| 20 | +#include <stdio.h> |
| 21 | +#include <stdlib.h> |
| 22 | +#include <CL/cl_layer.h> |
| 23 | +#if defined(_WIN32) |
| 24 | +#include <io.h> |
| 25 | +#include <share.h> |
| 26 | +#include <sys/stat.h> |
| 27 | +#else |
| 28 | +#include <unistd.h> |
| 29 | +#endif |
| 30 | +#include <fcntl.h> |
| 31 | + |
| 32 | +int stdout_bak, stderr_bak; |
| 33 | + |
| 34 | +// Temporarily deactivate stdout: |
| 35 | +// https://stackoverflow.com/a/4832902 |
| 36 | + |
| 37 | +#if defined(_WIN32) |
| 38 | +#define SECURE 1 |
| 39 | +#define OPEN _open |
| 40 | +#define OPEN_FLAGS _O_WRONLY |
| 41 | +#define CLOSE _close |
| 42 | +#define DUP _dup |
| 43 | +#define DUP2 _dup2 |
| 44 | +#define NULL_STREAM "nul" |
| 45 | +#else |
| 46 | +#define OPEN open |
| 47 | +#define OPEN_FLAGS O_WRONLY |
| 48 | +#define CLOSE close |
| 49 | +#define DUP dup |
| 50 | +#define DUP2 dup2 |
| 51 | +#define NULL_STREAM "/dev/null" |
| 52 | +#endif |
| 53 | + |
| 54 | +static inline int |
| 55 | +silence_stream(FILE *file, int fd) |
| 56 | +{ |
| 57 | + int new_fd, fd_bak; |
| 58 | + fflush(file); |
| 59 | + fd_bak = DUP(fd); |
| 60 | +#if defined(_WIN32) && SECURE |
| 61 | + _sopen_s(&new_fd, NULL_STREAM, OPEN_FLAGS, _SH_DENYNO, _S_IWRITE); |
| 62 | +#else |
| 63 | + new_fd = OPEN(NULL_STREAM, OPEN_FLAGS); |
| 64 | +#endif |
| 65 | + DUP2(new_fd, fd); |
| 66 | + CLOSE(new_fd); |
| 67 | + return fd_bak; |
| 68 | +} |
| 69 | + |
| 70 | +static void silence_layers(void) |
| 71 | +{ |
| 72 | + stdout_bak = silence_stream(stdout, 1); |
| 73 | + stderr_bak = silence_stream(stderr, 2); |
| 74 | +} |
| 75 | + |
| 76 | +static inline void |
| 77 | +restore_stream(FILE *file, int fd, int fd_bak) |
| 78 | +{ |
| 79 | + fflush(file); |
| 80 | + DUP2(fd_bak, fd); |
| 81 | + CLOSE(fd_bak); |
| 82 | +} |
| 83 | + |
| 84 | +static void restore_outputs(void) |
| 85 | +{ |
| 86 | + restore_stream(stdout, 1, stdout_bak); |
| 87 | + restore_stream(stderr, 2, stderr_bak); |
| 88 | +} |
| 89 | + |
| 90 | +void printLayerInfo(const struct KHRLayer *layer) |
| 91 | +{ |
| 92 | + cl_layer_api_version api_version = 0; |
| 93 | + pfn_clGetLayerInfo p_clGetLayerInfo = (pfn_clGetLayerInfo)(size_t)layer->p_clGetLayerInfo; |
| 94 | + cl_int result = CL_SUCCESS; |
| 95 | + size_t sz; |
| 96 | + |
| 97 | + printf("%s:\n", layer->libraryName); |
| 98 | + result = p_clGetLayerInfo(CL_LAYER_API_VERSION, sizeof(api_version), &api_version, NULL); |
| 99 | + if (CL_SUCCESS == result) |
| 100 | + printf("\tCL_LAYER_API_VERSION: %d\n", (int)api_version); |
| 101 | + |
| 102 | + result = p_clGetLayerInfo(CL_LAYER_NAME, 0, NULL, &sz); |
| 103 | + if (CL_SUCCESS == result) |
| 104 | + { |
| 105 | + char *name = (char *)malloc(sz); |
| 106 | + if (name) |
| 107 | + { |
| 108 | + result = p_clGetLayerInfo(CL_LAYER_NAME, sz, name, NULL); |
| 109 | + if (CL_SUCCESS == result) |
| 110 | + printf("\tCL_LAYER_NAME: %s\n", name); |
| 111 | + free(name); |
| 112 | + } |
| 113 | + } |
| 114 | +} |
| 115 | + |
| 116 | +int main (int argc, char *argv[]) |
| 117 | +{ |
| 118 | + (void)argc; |
| 119 | + (void)argv; |
| 120 | + silence_layers(); |
| 121 | + atexit(restore_outputs); |
| 122 | + khrIcdInitialize(); |
| 123 | + restore_outputs(); |
| 124 | + atexit(silence_layers); |
| 125 | + const struct KHRLayer *layer = khrFirstLayer; |
| 126 | + while (layer) |
| 127 | + { |
| 128 | + printLayerInfo(layer); |
| 129 | + layer = layer->next; |
| 130 | + } |
| 131 | + return 0; |
| 132 | +} |
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