Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2012 The Android Open Source Project |
| 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 | */ |
Eino-Ville Talvala | 623ff65 | 2012-04-11 16:15:50 -0700 | [diff] [blame] | 16 | #define _GNU_SOURCE // for fdprintf |
Mark Salyzyn | 773e5c8 | 2014-03-13 13:24:19 -0700 | [diff] [blame^] | 17 | #include <inttypes.h> |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 18 | #include <system/camera_metadata.h> |
Igor Murashkin | d1cecc1 | 2013-04-30 17:21:54 -0700 | [diff] [blame] | 19 | |
| 20 | #define LOG_TAG "camera_metadata" |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 21 | #include <cutils/log.h> |
Eino-Ville Talvala | 94c1901 | 2012-04-04 15:30:06 -0700 | [diff] [blame] | 22 | #include <stdio.h> |
| 23 | #include <stdlib.h> |
| 24 | #include <errno.h> |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 25 | |
Eino-Ville Talvala | 94c1901 | 2012-04-04 15:30:06 -0700 | [diff] [blame] | 26 | #define OK 0 |
| 27 | #define ERROR 1 |
| 28 | #define NOT_FOUND -ENOENT |
Eino-Ville Talvala | 3154036 | 2012-11-07 16:36:50 -0800 | [diff] [blame] | 29 | |
| 30 | #define _Alignas(T) \ |
| 31 | ({struct _AlignasStruct { char c; T field; }; \ |
| 32 | offsetof(struct _AlignasStruct, field); }) |
| 33 | |
| 34 | // Align entry buffers as the compiler would |
| 35 | #define ENTRY_ALIGNMENT _Alignas(camera_metadata_buffer_entry_t) |
| 36 | // Align data buffer to largest supported data type |
Igor Murashkin | 555aac8 | 2012-11-15 10:54:57 -0800 | [diff] [blame] | 37 | #define DATA_ALIGNMENT _Alignas(camera_metadata_data_t) |
Eino-Ville Talvala | 3154036 | 2012-11-07 16:36:50 -0800 | [diff] [blame] | 38 | |
| 39 | #define ALIGN_TO(val, alignment) \ |
Igor Murashkin | d1cecc1 | 2013-04-30 17:21:54 -0700 | [diff] [blame] | 40 | (((uintptr_t)(val) + ((alignment) - 1)) & ~((alignment) - 1)) |
| 41 | |
| 42 | typedef size_t uptrdiff_t; |
Eino-Ville Talvala | 3154036 | 2012-11-07 16:36:50 -0800 | [diff] [blame] | 43 | |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 44 | /** |
| 45 | * A single metadata entry, storing an array of values of a given type. If the |
| 46 | * array is no larger than 4 bytes in size, it is stored in the data.value[] |
| 47 | * array; otherwise, it can found in the parent's data array at index |
| 48 | * data.offset. |
| 49 | */ |
Eino-Ville Talvala | f5fb8a5 | 2012-05-10 14:22:28 -0700 | [diff] [blame] | 50 | typedef struct camera_metadata_buffer_entry { |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 51 | uint32_t tag; |
| 52 | size_t count; |
| 53 | union { |
| 54 | size_t offset; |
| 55 | uint8_t value[4]; |
| 56 | } data; |
| 57 | uint8_t type; |
| 58 | uint8_t reserved[3]; |
Eino-Ville Talvala | 3154036 | 2012-11-07 16:36:50 -0800 | [diff] [blame] | 59 | } camera_metadata_buffer_entry_t; |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 60 | |
| 61 | /** |
| 62 | * A packet of metadata. This is a list of entries, each of which may point to |
| 63 | * its values stored at an offset in data. |
| 64 | * |
| 65 | * It is assumed by the utility functions that the memory layout of the packet |
| 66 | * is as follows: |
| 67 | * |
Eino-Ville Talvala | f5fb8a5 | 2012-05-10 14:22:28 -0700 | [diff] [blame] | 68 | * |-----------------------------------------------| |
| 69 | * | camera_metadata_t | |
| 70 | * | | |
| 71 | * |-----------------------------------------------| |
| 72 | * | reserved for future expansion | |
| 73 | * |-----------------------------------------------| |
| 74 | * | camera_metadata_buffer_entry_t #0 | |
| 75 | * |-----------------------------------------------| |
| 76 | * | .... | |
| 77 | * |-----------------------------------------------| |
| 78 | * | camera_metadata_buffer_entry_t #entry_count-1 | |
| 79 | * |-----------------------------------------------| |
| 80 | * | free space for | |
| 81 | * | (entry_capacity-entry_count) entries | |
| 82 | * |-----------------------------------------------| |
| 83 | * | start of camera_metadata.data | |
| 84 | * | | |
| 85 | * |-----------------------------------------------| |
| 86 | * | free space for | |
| 87 | * | (data_capacity-data_count) bytes | |
| 88 | * |-----------------------------------------------| |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 89 | * |
| 90 | * With the total length of the whole packet being camera_metadata.size bytes. |
| 91 | * |
| 92 | * In short, the entries and data are contiguous in memory after the metadata |
| 93 | * header. |
| 94 | */ |
| 95 | struct camera_metadata { |
| 96 | size_t size; |
Eino-Ville Talvala | 94c1901 | 2012-04-04 15:30:06 -0700 | [diff] [blame] | 97 | uint32_t version; |
| 98 | uint32_t flags; |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 99 | size_t entry_count; |
| 100 | size_t entry_capacity; |
Igor Murashkin | d1cecc1 | 2013-04-30 17:21:54 -0700 | [diff] [blame] | 101 | uptrdiff_t entries_start; // Offset from camera_metadata |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 102 | size_t data_count; |
| 103 | size_t data_capacity; |
Igor Murashkin | d1cecc1 | 2013-04-30 17:21:54 -0700 | [diff] [blame] | 104 | uptrdiff_t data_start; // Offset from camera_metadata |
Eino-Ville Talvala | 98d02fd | 2012-05-21 14:46:49 -0700 | [diff] [blame] | 105 | void *user; // User set pointer, not copied with buffer |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 106 | uint8_t reserved[0]; |
| 107 | }; |
| 108 | |
Igor Murashkin | 555aac8 | 2012-11-15 10:54:57 -0800 | [diff] [blame] | 109 | /** |
| 110 | * A datum of metadata. This corresponds to camera_metadata_entry_t::data |
| 111 | * with the difference that each element is not a pointer. We need to have a |
| 112 | * non-pointer type description in order to figure out the largest alignment |
| 113 | * requirement for data (DATA_ALIGNMENT). |
| 114 | */ |
| 115 | typedef union camera_metadata_data { |
| 116 | uint8_t u8; |
| 117 | int32_t i32; |
| 118 | float f; |
| 119 | int64_t i64; |
| 120 | double d; |
| 121 | camera_metadata_rational_t r; |
| 122 | } camera_metadata_data_t; |
| 123 | |
Eino-Ville Talvala | 94c1901 | 2012-04-04 15:30:06 -0700 | [diff] [blame] | 124 | /** Versioning information */ |
| 125 | #define CURRENT_METADATA_VERSION 1 |
| 126 | |
| 127 | /** Flag definitions */ |
| 128 | #define FLAG_SORTED 0x00000001 |
| 129 | |
| 130 | /** Tag information */ |
| 131 | |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 132 | typedef struct tag_info { |
| 133 | const char *tag_name; |
| 134 | uint8_t tag_type; |
| 135 | } tag_info_t; |
| 136 | |
| 137 | #include "camera_metadata_tag_info.c" |
| 138 | |
Eino-Ville Talvala | fd25882 | 2012-06-06 17:22:42 -0700 | [diff] [blame] | 139 | const size_t camera_metadata_type_size[NUM_TYPES] = { |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 140 | [TYPE_BYTE] = sizeof(uint8_t), |
| 141 | [TYPE_INT32] = sizeof(int32_t), |
| 142 | [TYPE_FLOAT] = sizeof(float), |
| 143 | [TYPE_INT64] = sizeof(int64_t), |
| 144 | [TYPE_DOUBLE] = sizeof(double), |
| 145 | [TYPE_RATIONAL] = sizeof(camera_metadata_rational_t) |
| 146 | }; |
| 147 | |
Eino-Ville Talvala | fd25882 | 2012-06-06 17:22:42 -0700 | [diff] [blame] | 148 | const char *camera_metadata_type_names[NUM_TYPES] = { |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 149 | [TYPE_BYTE] = "byte", |
| 150 | [TYPE_INT32] = "int32", |
| 151 | [TYPE_FLOAT] = "float", |
| 152 | [TYPE_INT64] = "int64", |
Eino-Ville Talvala | f5fb8a5 | 2012-05-10 14:22:28 -0700 | [diff] [blame] | 153 | [TYPE_DOUBLE] = "double", |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 154 | [TYPE_RATIONAL] = "rational" |
| 155 | }; |
| 156 | |
Eino-Ville Talvala | b10d56a | 2012-11-13 11:45:12 -0800 | [diff] [blame] | 157 | static camera_metadata_buffer_entry_t *get_entries( |
| 158 | const camera_metadata_t *metadata) { |
| 159 | return (camera_metadata_buffer_entry_t*) |
| 160 | ((uint8_t*)metadata + metadata->entries_start); |
| 161 | } |
| 162 | |
| 163 | static uint8_t *get_data(const camera_metadata_t *metadata) { |
| 164 | return (uint8_t*)metadata + metadata->data_start; |
| 165 | } |
| 166 | |
Igor Murashkin | d1cecc1 | 2013-04-30 17:21:54 -0700 | [diff] [blame] | 167 | camera_metadata_t *allocate_copy_camera_metadata_checked( |
| 168 | const camera_metadata_t *src, |
| 169 | size_t src_size) { |
| 170 | |
| 171 | if (src == NULL) { |
| 172 | return NULL; |
| 173 | } |
| 174 | |
| 175 | void *buffer = malloc(src_size); |
| 176 | memcpy(buffer, src, src_size); |
| 177 | |
| 178 | camera_metadata_t *metadata = (camera_metadata_t*) buffer; |
| 179 | if (validate_camera_metadata_structure(metadata, &src_size) != OK) { |
| 180 | free(buffer); |
| 181 | return NULL; |
| 182 | } |
| 183 | |
| 184 | return metadata; |
| 185 | } |
| 186 | |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 187 | camera_metadata_t *allocate_camera_metadata(size_t entry_capacity, |
| 188 | size_t data_capacity) { |
Eino-Ville Talvala | 2f4aca6 | 2012-08-24 11:42:06 -0700 | [diff] [blame] | 189 | if (entry_capacity == 0) return NULL; |
| 190 | |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 191 | size_t memory_needed = calculate_camera_metadata_size(entry_capacity, |
| 192 | data_capacity); |
| 193 | void *buffer = malloc(memory_needed); |
| 194 | return place_camera_metadata(buffer, memory_needed, |
| 195 | entry_capacity, |
| 196 | data_capacity); |
| 197 | } |
| 198 | |
| 199 | camera_metadata_t *place_camera_metadata(void *dst, |
| 200 | size_t dst_size, |
| 201 | size_t entry_capacity, |
| 202 | size_t data_capacity) { |
| 203 | if (dst == NULL) return NULL; |
| 204 | if (entry_capacity == 0) return NULL; |
| 205 | |
| 206 | size_t memory_needed = calculate_camera_metadata_size(entry_capacity, |
| 207 | data_capacity); |
| 208 | if (memory_needed > dst_size) return NULL; |
| 209 | |
| 210 | camera_metadata_t *metadata = (camera_metadata_t*)dst; |
Eino-Ville Talvala | 94c1901 | 2012-04-04 15:30:06 -0700 | [diff] [blame] | 211 | metadata->version = CURRENT_METADATA_VERSION; |
| 212 | metadata->flags = 0; |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 213 | metadata->entry_count = 0; |
| 214 | metadata->entry_capacity = entry_capacity; |
Eino-Ville Talvala | b10d56a | 2012-11-13 11:45:12 -0800 | [diff] [blame] | 215 | metadata->entries_start = |
| 216 | ALIGN_TO(sizeof(camera_metadata_t), ENTRY_ALIGNMENT); |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 217 | metadata->data_count = 0; |
| 218 | metadata->data_capacity = data_capacity; |
| 219 | metadata->size = memory_needed; |
Igor Murashkin | d1cecc1 | 2013-04-30 17:21:54 -0700 | [diff] [blame] | 220 | size_t data_unaligned = (uint8_t*)(get_entries(metadata) + |
| 221 | metadata->entry_capacity) - (uint8_t*)metadata; |
| 222 | metadata->data_start = ALIGN_TO(data_unaligned, DATA_ALIGNMENT); |
Eino-Ville Talvala | 98d02fd | 2012-05-21 14:46:49 -0700 | [diff] [blame] | 223 | metadata->user = NULL; |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 224 | |
| 225 | return metadata; |
| 226 | } |
| 227 | void free_camera_metadata(camera_metadata_t *metadata) { |
| 228 | free(metadata); |
| 229 | } |
| 230 | |
| 231 | size_t calculate_camera_metadata_size(size_t entry_count, |
| 232 | size_t data_count) { |
| 233 | size_t memory_needed = sizeof(camera_metadata_t); |
Eino-Ville Talvala | 3154036 | 2012-11-07 16:36:50 -0800 | [diff] [blame] | 234 | // Start entry list at aligned boundary |
| 235 | memory_needed = ALIGN_TO(memory_needed, ENTRY_ALIGNMENT); |
Eino-Ville Talvala | f5fb8a5 | 2012-05-10 14:22:28 -0700 | [diff] [blame] | 236 | memory_needed += sizeof(camera_metadata_buffer_entry_t[entry_count]); |
Eino-Ville Talvala | 3154036 | 2012-11-07 16:36:50 -0800 | [diff] [blame] | 237 | // Start buffer list at aligned boundary |
| 238 | memory_needed = ALIGN_TO(memory_needed, DATA_ALIGNMENT); |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 239 | memory_needed += sizeof(uint8_t[data_count]); |
| 240 | return memory_needed; |
| 241 | } |
| 242 | |
| 243 | size_t get_camera_metadata_size(const camera_metadata_t *metadata) { |
| 244 | if (metadata == NULL) return ERROR; |
| 245 | |
| 246 | return metadata->size; |
| 247 | } |
| 248 | |
| 249 | size_t get_camera_metadata_compact_size(const camera_metadata_t *metadata) { |
| 250 | if (metadata == NULL) return ERROR; |
| 251 | |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 252 | return calculate_camera_metadata_size(metadata->entry_count, |
Eino-Ville Talvala | b10d56a | 2012-11-13 11:45:12 -0800 | [diff] [blame] | 253 | metadata->data_count); |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 254 | } |
| 255 | |
| 256 | size_t get_camera_metadata_entry_count(const camera_metadata_t *metadata) { |
| 257 | return metadata->entry_count; |
| 258 | } |
| 259 | |
| 260 | size_t get_camera_metadata_entry_capacity(const camera_metadata_t *metadata) { |
| 261 | return metadata->entry_capacity; |
| 262 | } |
| 263 | |
| 264 | size_t get_camera_metadata_data_count(const camera_metadata_t *metadata) { |
| 265 | return metadata->data_count; |
| 266 | } |
| 267 | |
| 268 | size_t get_camera_metadata_data_capacity(const camera_metadata_t *metadata) { |
| 269 | return metadata->data_capacity; |
| 270 | } |
| 271 | |
| 272 | camera_metadata_t* copy_camera_metadata(void *dst, size_t dst_size, |
| 273 | const camera_metadata_t *src) { |
| 274 | size_t memory_needed = get_camera_metadata_compact_size(src); |
| 275 | |
| 276 | if (dst == NULL) return NULL; |
| 277 | if (dst_size < memory_needed) return NULL; |
| 278 | |
Eino-Ville Talvala | b10d56a | 2012-11-13 11:45:12 -0800 | [diff] [blame] | 279 | camera_metadata_t *metadata = |
| 280 | place_camera_metadata(dst, dst_size, src->entry_count, src->data_count); |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 281 | |
Eino-Ville Talvala | 94c1901 | 2012-04-04 15:30:06 -0700 | [diff] [blame] | 282 | metadata->flags = src->flags; |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 283 | metadata->entry_count = src->entry_count; |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 284 | metadata->data_count = src->data_count; |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 285 | |
Eino-Ville Talvala | b10d56a | 2012-11-13 11:45:12 -0800 | [diff] [blame] | 286 | memcpy(get_entries(metadata), get_entries(src), |
Eino-Ville Talvala | f5fb8a5 | 2012-05-10 14:22:28 -0700 | [diff] [blame] | 287 | sizeof(camera_metadata_buffer_entry_t[metadata->entry_count])); |
Eino-Ville Talvala | b10d56a | 2012-11-13 11:45:12 -0800 | [diff] [blame] | 288 | memcpy(get_data(metadata), get_data(src), |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 289 | sizeof(uint8_t[metadata->data_count])); |
Eino-Ville Talvala | 98d02fd | 2012-05-21 14:46:49 -0700 | [diff] [blame] | 290 | metadata->user = NULL; |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 291 | |
| 292 | return metadata; |
| 293 | } |
| 294 | |
Igor Murashkin | d1cecc1 | 2013-04-30 17:21:54 -0700 | [diff] [blame] | 295 | int validate_camera_metadata_structure(const camera_metadata_t *metadata, |
| 296 | const size_t *expected_size) { |
| 297 | |
| 298 | if (metadata == NULL) { |
| 299 | return ERROR; |
| 300 | } |
| 301 | |
| 302 | // Check that the metadata pointer is well-aligned first. |
| 303 | { |
| 304 | struct { |
| 305 | const char *name; |
| 306 | size_t alignment; |
| 307 | } alignments[] = { |
| 308 | { |
| 309 | .name = "camera_metadata", |
| 310 | .alignment = _Alignas(struct camera_metadata) |
| 311 | }, |
| 312 | { |
| 313 | .name = "camera_metadata_buffer_entry", |
| 314 | .alignment = _Alignas(struct camera_metadata_buffer_entry) |
| 315 | }, |
| 316 | { |
| 317 | .name = "camera_metadata_data", |
| 318 | .alignment = _Alignas(union camera_metadata_data) |
| 319 | }, |
| 320 | }; |
| 321 | |
| 322 | for (size_t i = 0; i < sizeof(alignments)/sizeof(alignments[0]); ++i) { |
| 323 | uintptr_t aligned_ptr = ALIGN_TO(metadata, alignments[i].alignment); |
| 324 | |
| 325 | if ((uintptr_t)metadata != aligned_ptr) { |
| 326 | ALOGE("%s: Metadata pointer is not aligned (actual %p, " |
| 327 | "expected %p) to type %s", |
| 328 | __FUNCTION__, metadata, |
| 329 | (void*)aligned_ptr, alignments[i].name); |
| 330 | return ERROR; |
| 331 | } |
| 332 | } |
| 333 | } |
| 334 | |
| 335 | /** |
| 336 | * Check that the metadata contents are correct |
| 337 | */ |
| 338 | |
| 339 | if (expected_size != NULL && metadata->size > *expected_size) { |
Mark Salyzyn | 773e5c8 | 2014-03-13 13:24:19 -0700 | [diff] [blame^] | 340 | ALOGE("%s: Metadata size (%zu) should be <= expected size (%zu)", |
Igor Murashkin | d1cecc1 | 2013-04-30 17:21:54 -0700 | [diff] [blame] | 341 | __FUNCTION__, metadata->size, *expected_size); |
| 342 | return ERROR; |
| 343 | } |
| 344 | |
| 345 | if (metadata->entry_count > metadata->entry_capacity) { |
Mark Salyzyn | 773e5c8 | 2014-03-13 13:24:19 -0700 | [diff] [blame^] | 346 | ALOGE("%s: Entry count (%zu) should be <= entry capacity (%zu)", |
Igor Murashkin | d1cecc1 | 2013-04-30 17:21:54 -0700 | [diff] [blame] | 347 | __FUNCTION__, metadata->entry_count, metadata->entry_capacity); |
| 348 | return ERROR; |
| 349 | } |
| 350 | |
| 351 | uptrdiff_t entries_end = metadata->entries_start + metadata->entry_capacity; |
| 352 | if (entries_end < metadata->entries_start || // overflow check |
| 353 | entries_end > metadata->data_start) { |
| 354 | |
Mark Salyzyn | 773e5c8 | 2014-03-13 13:24:19 -0700 | [diff] [blame^] | 355 | ALOGE("%s: Entry start + capacity (%zu) should be <= data start (%zu)", |
Igor Murashkin | d1cecc1 | 2013-04-30 17:21:54 -0700 | [diff] [blame] | 356 | __FUNCTION__, |
| 357 | (metadata->entries_start + metadata->entry_capacity), |
| 358 | metadata->data_start); |
| 359 | return ERROR; |
| 360 | } |
| 361 | |
| 362 | uptrdiff_t data_end = metadata->data_start + metadata->data_capacity; |
| 363 | if (data_end < metadata->data_start || // overflow check |
| 364 | data_end > metadata->size) { |
| 365 | |
Mark Salyzyn | 773e5c8 | 2014-03-13 13:24:19 -0700 | [diff] [blame^] | 366 | ALOGE("%s: Data start + capacity (%zu) should be <= total size (%zu)", |
Igor Murashkin | d1cecc1 | 2013-04-30 17:21:54 -0700 | [diff] [blame] | 367 | __FUNCTION__, |
| 368 | (metadata->data_start + metadata->data_capacity), |
| 369 | metadata->size); |
| 370 | return ERROR; |
| 371 | } |
| 372 | |
| 373 | // Validate each entry |
| 374 | size_t entry_count = metadata->entry_count; |
| 375 | camera_metadata_buffer_entry_t *entries = get_entries(metadata); |
| 376 | |
| 377 | for (size_t i = 0; i < entry_count; ++i) { |
| 378 | |
| 379 | if ((uintptr_t)&entries[i] != ALIGN_TO(&entries[i], ENTRY_ALIGNMENT)) { |
Mark Salyzyn | 773e5c8 | 2014-03-13 13:24:19 -0700 | [diff] [blame^] | 380 | ALOGE("%s: Entry index %zu had bad alignment (address %p)," |
| 381 | " expected alignment %zu", |
Igor Murashkin | d1cecc1 | 2013-04-30 17:21:54 -0700 | [diff] [blame] | 382 | __FUNCTION__, i, &entries[i], ENTRY_ALIGNMENT); |
| 383 | return ERROR; |
| 384 | } |
| 385 | |
| 386 | camera_metadata_buffer_entry_t entry = entries[i]; |
| 387 | |
| 388 | if (entry.type >= NUM_TYPES) { |
Mark Salyzyn | 773e5c8 | 2014-03-13 13:24:19 -0700 | [diff] [blame^] | 389 | ALOGE("%s: Entry index %zu had a bad type %d", |
Igor Murashkin | d1cecc1 | 2013-04-30 17:21:54 -0700 | [diff] [blame] | 390 | __FUNCTION__, i, entry.type); |
| 391 | return ERROR; |
| 392 | } |
| 393 | |
| 394 | // TODO: fix vendor_tag_ops across processes so we don't need to special |
| 395 | // case vendor-specific tags |
| 396 | uint32_t tag_section = entry.tag >> 16; |
| 397 | int tag_type = get_camera_metadata_tag_type(entry.tag); |
| 398 | if (tag_type != (int)entry.type && tag_section < VENDOR_SECTION) { |
Mark Salyzyn | 773e5c8 | 2014-03-13 13:24:19 -0700 | [diff] [blame^] | 399 | ALOGE("%s: Entry index %zu had tag type %d, but the type was %d", |
Igor Murashkin | d1cecc1 | 2013-04-30 17:21:54 -0700 | [diff] [blame] | 400 | __FUNCTION__, i, tag_type, entry.type); |
| 401 | return ERROR; |
| 402 | } |
| 403 | |
| 404 | size_t data_size = |
| 405 | calculate_camera_metadata_entry_data_size(entry.type, |
| 406 | entry.count); |
| 407 | |
| 408 | if (data_size != 0) { |
| 409 | camera_metadata_data_t *data = |
| 410 | (camera_metadata_data_t*) (get_data(metadata) + |
| 411 | entry.data.offset); |
| 412 | |
| 413 | if ((uintptr_t)data != ALIGN_TO(data, DATA_ALIGNMENT)) { |
Mark Salyzyn | 773e5c8 | 2014-03-13 13:24:19 -0700 | [diff] [blame^] | 414 | ALOGE("%s: Entry index %zu had bad data alignment (address %p)," |
| 415 | " expected align %zu, (tag name %s, data size %zu)", |
Igor Murashkin | d1cecc1 | 2013-04-30 17:21:54 -0700 | [diff] [blame] | 416 | __FUNCTION__, i, data, DATA_ALIGNMENT, |
| 417 | get_camera_metadata_tag_name(entry.tag) ?: "unknown", |
| 418 | data_size); |
| 419 | return ERROR; |
| 420 | } |
| 421 | |
| 422 | size_t data_entry_end = entry.data.offset + data_size; |
| 423 | if (data_entry_end < entry.data.offset || // overflow check |
| 424 | data_entry_end > metadata->data_capacity) { |
| 425 | |
Mark Salyzyn | 773e5c8 | 2014-03-13 13:24:19 -0700 | [diff] [blame^] | 426 | ALOGE("%s: Entry index %zu data ends (%zu) beyond the capacity " |
| 427 | "%zu", __FUNCTION__, i, data_entry_end, |
Igor Murashkin | d1cecc1 | 2013-04-30 17:21:54 -0700 | [diff] [blame] | 428 | metadata->data_capacity); |
| 429 | return ERROR; |
| 430 | } |
| 431 | |
| 432 | } else if (entry.count == 0) { |
| 433 | if (entry.data.offset != 0) { |
Mark Salyzyn | 773e5c8 | 2014-03-13 13:24:19 -0700 | [diff] [blame^] | 434 | ALOGE("%s: Entry index %zu had 0 items, but offset was non-0 " |
| 435 | "(%zu), tag name: %s", __FUNCTION__, i, entry.data.offset, |
Zhijun He | 3064d31 | 2013-07-15 13:55:11 -0700 | [diff] [blame] | 436 | get_camera_metadata_tag_name(entry.tag) ?: "unknown"); |
Igor Murashkin | d1cecc1 | 2013-04-30 17:21:54 -0700 | [diff] [blame] | 437 | return ERROR; |
| 438 | } |
| 439 | } // else data stored inline, so we look at value which can be anything. |
| 440 | } |
| 441 | |
| 442 | return OK; |
| 443 | } |
| 444 | |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 445 | int append_camera_metadata(camera_metadata_t *dst, |
| 446 | const camera_metadata_t *src) { |
| 447 | if (dst == NULL || src == NULL ) return ERROR; |
| 448 | |
| 449 | if (dst->entry_capacity < src->entry_count + dst->entry_count) return ERROR; |
| 450 | if (dst->data_capacity < src->data_count + dst->data_count) return ERROR; |
| 451 | |
Eino-Ville Talvala | b10d56a | 2012-11-13 11:45:12 -0800 | [diff] [blame] | 452 | memcpy(get_entries(dst) + dst->entry_count, get_entries(src), |
Eino-Ville Talvala | f5fb8a5 | 2012-05-10 14:22:28 -0700 | [diff] [blame] | 453 | sizeof(camera_metadata_buffer_entry_t[src->entry_count])); |
Eino-Ville Talvala | b10d56a | 2012-11-13 11:45:12 -0800 | [diff] [blame] | 454 | memcpy(get_data(dst) + dst->data_count, get_data(src), |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 455 | sizeof(uint8_t[src->data_count])); |
| 456 | if (dst->data_count != 0) { |
Eino-Ville Talvala | b10d56a | 2012-11-13 11:45:12 -0800 | [diff] [blame] | 457 | camera_metadata_buffer_entry_t *entry = get_entries(dst) + dst->entry_count; |
| 458 | for (size_t i = 0; i < src->entry_count; i++, entry++) { |
| 459 | if ( calculate_camera_metadata_entry_data_size(entry->type, |
| 460 | entry->count) > 0 ) { |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 461 | entry->data.offset += dst->data_count; |
| 462 | } |
| 463 | } |
| 464 | } |
Eino-Ville Talvala | f5fb8a5 | 2012-05-10 14:22:28 -0700 | [diff] [blame] | 465 | if (dst->entry_count == 0) { |
| 466 | // Appending onto empty buffer, keep sorted state |
| 467 | dst->flags |= src->flags & FLAG_SORTED; |
| 468 | } else if (src->entry_count != 0) { |
| 469 | // Both src, dst are nonempty, cannot assume sort remains |
| 470 | dst->flags &= ~FLAG_SORTED; |
| 471 | } else { |
| 472 | // Src is empty, keep dst sorted state |
| 473 | } |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 474 | dst->entry_count += src->entry_count; |
| 475 | dst->data_count += src->data_count; |
| 476 | |
| 477 | return OK; |
| 478 | } |
| 479 | |
Eino-Ville Talvala | 2f4aca6 | 2012-08-24 11:42:06 -0700 | [diff] [blame] | 480 | camera_metadata_t *clone_camera_metadata(const camera_metadata_t *src) { |
Eino-Ville Talvala | fd25882 | 2012-06-06 17:22:42 -0700 | [diff] [blame] | 481 | int res; |
Eino-Ville Talvala | 2f4aca6 | 2012-08-24 11:42:06 -0700 | [diff] [blame] | 482 | if (src == NULL) return NULL; |
Eino-Ville Talvala | fd25882 | 2012-06-06 17:22:42 -0700 | [diff] [blame] | 483 | camera_metadata_t *clone = allocate_camera_metadata( |
| 484 | get_camera_metadata_entry_count(src), |
| 485 | get_camera_metadata_data_count(src)); |
| 486 | if (clone != NULL) { |
| 487 | res = append_camera_metadata(clone, src); |
| 488 | if (res != OK) { |
| 489 | free_camera_metadata(clone); |
| 490 | clone = NULL; |
| 491 | } |
| 492 | } |
| 493 | return clone; |
| 494 | } |
| 495 | |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 496 | size_t calculate_camera_metadata_entry_data_size(uint8_t type, |
| 497 | size_t data_count) { |
| 498 | if (type >= NUM_TYPES) return 0; |
| 499 | size_t data_bytes = data_count * |
| 500 | camera_metadata_type_size[type]; |
Eino-Ville Talvala | 3154036 | 2012-11-07 16:36:50 -0800 | [diff] [blame] | 501 | return data_bytes <= 4 ? 0 : ALIGN_TO(data_bytes, DATA_ALIGNMENT); |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 502 | } |
| 503 | |
Eino-Ville Talvala | 94c1901 | 2012-04-04 15:30:06 -0700 | [diff] [blame] | 504 | static int add_camera_metadata_entry_raw(camera_metadata_t *dst, |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 505 | uint32_t tag, |
| 506 | uint8_t type, |
| 507 | const void *data, |
| 508 | size_t data_count) { |
| 509 | |
| 510 | if (dst == NULL) return ERROR; |
| 511 | if (dst->entry_count == dst->entry_capacity) return ERROR; |
| 512 | if (data == NULL) return ERROR; |
| 513 | |
| 514 | size_t data_bytes = |
| 515 | calculate_camera_metadata_entry_data_size(type, data_count); |
Eino-Ville Talvala | 3154036 | 2012-11-07 16:36:50 -0800 | [diff] [blame] | 516 | if (data_bytes + dst->data_count > dst->data_capacity) return ERROR; |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 517 | |
Eino-Ville Talvala | 3154036 | 2012-11-07 16:36:50 -0800 | [diff] [blame] | 518 | size_t data_payload_bytes = |
| 519 | data_count * camera_metadata_type_size[type]; |
Eino-Ville Talvala | b10d56a | 2012-11-13 11:45:12 -0800 | [diff] [blame] | 520 | camera_metadata_buffer_entry_t *entry = get_entries(dst) + dst->entry_count; |
Zhijun He | 3064d31 | 2013-07-15 13:55:11 -0700 | [diff] [blame] | 521 | memset(entry, 0, sizeof(camera_metadata_buffer_entry_t)); |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 522 | entry->tag = tag; |
| 523 | entry->type = type; |
| 524 | entry->count = data_count; |
| 525 | |
| 526 | if (data_bytes == 0) { |
| 527 | memcpy(entry->data.value, data, |
Eino-Ville Talvala | 3154036 | 2012-11-07 16:36:50 -0800 | [diff] [blame] | 528 | data_payload_bytes); |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 529 | } else { |
| 530 | entry->data.offset = dst->data_count; |
Eino-Ville Talvala | b10d56a | 2012-11-13 11:45:12 -0800 | [diff] [blame] | 531 | memcpy(get_data(dst) + entry->data.offset, data, |
Eino-Ville Talvala | 3154036 | 2012-11-07 16:36:50 -0800 | [diff] [blame] | 532 | data_payload_bytes); |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 533 | dst->data_count += data_bytes; |
| 534 | } |
| 535 | dst->entry_count++; |
Eino-Ville Talvala | 94c1901 | 2012-04-04 15:30:06 -0700 | [diff] [blame] | 536 | dst->flags &= ~FLAG_SORTED; |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 537 | return OK; |
| 538 | } |
| 539 | |
| 540 | int add_camera_metadata_entry(camera_metadata_t *dst, |
| 541 | uint32_t tag, |
| 542 | const void *data, |
| 543 | size_t data_count) { |
| 544 | |
| 545 | int type = get_camera_metadata_tag_type(tag); |
| 546 | if (type == -1) { |
Eino-Ville Talvala | 94c1901 | 2012-04-04 15:30:06 -0700 | [diff] [blame] | 547 | ALOGE("%s: Unknown tag %04x.", __FUNCTION__, tag); |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 548 | return ERROR; |
| 549 | } |
| 550 | |
| 551 | return add_camera_metadata_entry_raw(dst, |
| 552 | tag, |
| 553 | type, |
| 554 | data, |
| 555 | data_count); |
| 556 | } |
| 557 | |
Eino-Ville Talvala | 94c1901 | 2012-04-04 15:30:06 -0700 | [diff] [blame] | 558 | static int compare_entry_tags(const void *p1, const void *p2) { |
Eino-Ville Talvala | f5fb8a5 | 2012-05-10 14:22:28 -0700 | [diff] [blame] | 559 | uint32_t tag1 = ((camera_metadata_buffer_entry_t*)p1)->tag; |
| 560 | uint32_t tag2 = ((camera_metadata_buffer_entry_t*)p2)->tag; |
Eino-Ville Talvala | 94c1901 | 2012-04-04 15:30:06 -0700 | [diff] [blame] | 561 | return tag1 < tag2 ? -1 : |
| 562 | tag1 == tag2 ? 0 : |
| 563 | 1; |
| 564 | } |
| 565 | |
| 566 | int sort_camera_metadata(camera_metadata_t *dst) { |
| 567 | if (dst == NULL) return ERROR; |
| 568 | if (dst->flags & FLAG_SORTED) return OK; |
| 569 | |
Eino-Ville Talvala | b10d56a | 2012-11-13 11:45:12 -0800 | [diff] [blame] | 570 | qsort(get_entries(dst), dst->entry_count, |
Eino-Ville Talvala | f5fb8a5 | 2012-05-10 14:22:28 -0700 | [diff] [blame] | 571 | sizeof(camera_metadata_buffer_entry_t), |
Eino-Ville Talvala | 94c1901 | 2012-04-04 15:30:06 -0700 | [diff] [blame] | 572 | compare_entry_tags); |
| 573 | dst->flags |= FLAG_SORTED; |
| 574 | |
| 575 | return OK; |
| 576 | } |
| 577 | |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 578 | int get_camera_metadata_entry(camera_metadata_t *src, |
Eino-Ville Talvala | f5fb8a5 | 2012-05-10 14:22:28 -0700 | [diff] [blame] | 579 | size_t index, |
| 580 | camera_metadata_entry_t *entry) { |
| 581 | if (src == NULL || entry == NULL) return ERROR; |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 582 | if (index >= src->entry_count) return ERROR; |
| 583 | |
Eino-Ville Talvala | b10d56a | 2012-11-13 11:45:12 -0800 | [diff] [blame] | 584 | camera_metadata_buffer_entry_t *buffer_entry = get_entries(src) + index; |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 585 | |
Eino-Ville Talvala | f5fb8a5 | 2012-05-10 14:22:28 -0700 | [diff] [blame] | 586 | entry->index = index; |
| 587 | entry->tag = buffer_entry->tag; |
| 588 | entry->type = buffer_entry->type; |
| 589 | entry->count = buffer_entry->count; |
| 590 | if (buffer_entry->count * |
| 591 | camera_metadata_type_size[buffer_entry->type] > 4) { |
Eino-Ville Talvala | b10d56a | 2012-11-13 11:45:12 -0800 | [diff] [blame] | 592 | entry->data.u8 = get_data(src) + buffer_entry->data.offset; |
Eino-Ville Talvala | f5fb8a5 | 2012-05-10 14:22:28 -0700 | [diff] [blame] | 593 | } else { |
| 594 | entry->data.u8 = buffer_entry->data.value; |
Eino-Ville Talvala | 94c1901 | 2012-04-04 15:30:06 -0700 | [diff] [blame] | 595 | } |
| 596 | return OK; |
| 597 | } |
| 598 | |
| 599 | int find_camera_metadata_entry(camera_metadata_t *src, |
| 600 | uint32_t tag, |
Eino-Ville Talvala | f5fb8a5 | 2012-05-10 14:22:28 -0700 | [diff] [blame] | 601 | camera_metadata_entry_t *entry) { |
Eino-Ville Talvala | 94c1901 | 2012-04-04 15:30:06 -0700 | [diff] [blame] | 602 | if (src == NULL) return ERROR; |
| 603 | |
Eino-Ville Talvala | f5fb8a5 | 2012-05-10 14:22:28 -0700 | [diff] [blame] | 604 | uint32_t index; |
Eino-Ville Talvala | 94c1901 | 2012-04-04 15:30:06 -0700 | [diff] [blame] | 605 | if (src->flags & FLAG_SORTED) { |
| 606 | // Sorted entries, do a binary search |
Eino-Ville Talvala | f5fb8a5 | 2012-05-10 14:22:28 -0700 | [diff] [blame] | 607 | camera_metadata_buffer_entry_t *search_entry = NULL; |
| 608 | camera_metadata_buffer_entry_t key; |
Eino-Ville Talvala | 94c1901 | 2012-04-04 15:30:06 -0700 | [diff] [blame] | 609 | key.tag = tag; |
Eino-Ville Talvala | f5fb8a5 | 2012-05-10 14:22:28 -0700 | [diff] [blame] | 610 | search_entry = bsearch(&key, |
Eino-Ville Talvala | b10d56a | 2012-11-13 11:45:12 -0800 | [diff] [blame] | 611 | get_entries(src), |
Eino-Ville Talvala | 94c1901 | 2012-04-04 15:30:06 -0700 | [diff] [blame] | 612 | src->entry_count, |
Eino-Ville Talvala | f5fb8a5 | 2012-05-10 14:22:28 -0700 | [diff] [blame] | 613 | sizeof(camera_metadata_buffer_entry_t), |
Eino-Ville Talvala | 94c1901 | 2012-04-04 15:30:06 -0700 | [diff] [blame] | 614 | compare_entry_tags); |
Eino-Ville Talvala | f5fb8a5 | 2012-05-10 14:22:28 -0700 | [diff] [blame] | 615 | if (search_entry == NULL) return NOT_FOUND; |
Eino-Ville Talvala | b10d56a | 2012-11-13 11:45:12 -0800 | [diff] [blame] | 616 | index = search_entry - get_entries(src); |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 617 | } else { |
Eino-Ville Talvala | 94c1901 | 2012-04-04 15:30:06 -0700 | [diff] [blame] | 618 | // Not sorted, linear search |
Eino-Ville Talvala | b10d56a | 2012-11-13 11:45:12 -0800 | [diff] [blame] | 619 | camera_metadata_buffer_entry_t *search_entry = get_entries(src); |
| 620 | for (index = 0; index < src->entry_count; index++, search_entry++) { |
| 621 | if (search_entry->tag == tag) { |
Eino-Ville Talvala | 94c1901 | 2012-04-04 15:30:06 -0700 | [diff] [blame] | 622 | break; |
| 623 | } |
| 624 | } |
Eino-Ville Talvala | f5fb8a5 | 2012-05-10 14:22:28 -0700 | [diff] [blame] | 625 | if (index == src->entry_count) return NOT_FOUND; |
Eino-Ville Talvala | 94c1901 | 2012-04-04 15:30:06 -0700 | [diff] [blame] | 626 | } |
Eino-Ville Talvala | 94c1901 | 2012-04-04 15:30:06 -0700 | [diff] [blame] | 627 | |
Eino-Ville Talvala | f5fb8a5 | 2012-05-10 14:22:28 -0700 | [diff] [blame] | 628 | return get_camera_metadata_entry(src, index, |
| 629 | entry); |
| 630 | } |
| 631 | |
Eino-Ville Talvala | 2f4aca6 | 2012-08-24 11:42:06 -0700 | [diff] [blame] | 632 | int find_camera_metadata_ro_entry(const camera_metadata_t *src, |
| 633 | uint32_t tag, |
| 634 | camera_metadata_ro_entry_t *entry) { |
| 635 | return find_camera_metadata_entry((camera_metadata_t*)src, tag, |
| 636 | (camera_metadata_entry_t*)entry); |
| 637 | } |
| 638 | |
| 639 | |
Eino-Ville Talvala | f5fb8a5 | 2012-05-10 14:22:28 -0700 | [diff] [blame] | 640 | int delete_camera_metadata_entry(camera_metadata_t *dst, |
| 641 | size_t index) { |
| 642 | if (dst == NULL) return ERROR; |
| 643 | if (index >= dst->entry_count) return ERROR; |
| 644 | |
Eino-Ville Talvala | b10d56a | 2012-11-13 11:45:12 -0800 | [diff] [blame] | 645 | camera_metadata_buffer_entry_t *entry = get_entries(dst) + index; |
Eino-Ville Talvala | f5fb8a5 | 2012-05-10 14:22:28 -0700 | [diff] [blame] | 646 | size_t data_bytes = calculate_camera_metadata_entry_data_size(entry->type, |
| 647 | entry->count); |
| 648 | |
| 649 | if (data_bytes > 0) { |
| 650 | // Shift data buffer to overwrite deleted data |
Eino-Ville Talvala | b10d56a | 2012-11-13 11:45:12 -0800 | [diff] [blame] | 651 | uint8_t *start = get_data(dst) + entry->data.offset; |
Eino-Ville Talvala | f5fb8a5 | 2012-05-10 14:22:28 -0700 | [diff] [blame] | 652 | uint8_t *end = start + data_bytes; |
| 653 | size_t length = dst->data_count - entry->data.offset - data_bytes; |
| 654 | memmove(start, end, length); |
| 655 | |
| 656 | // Update all entry indices to account for shift |
Eino-Ville Talvala | b10d56a | 2012-11-13 11:45:12 -0800 | [diff] [blame] | 657 | camera_metadata_buffer_entry_t *e = get_entries(dst); |
Eino-Ville Talvala | f5fb8a5 | 2012-05-10 14:22:28 -0700 | [diff] [blame] | 658 | size_t i; |
| 659 | for (i = 0; i < dst->entry_count; i++) { |
| 660 | if (calculate_camera_metadata_entry_data_size( |
| 661 | e->type, e->count) > 0 && |
| 662 | e->data.offset > entry->data.offset) { |
| 663 | e->data.offset -= data_bytes; |
| 664 | } |
| 665 | ++e; |
Eino-Ville Talvala | 94c1901 | 2012-04-04 15:30:06 -0700 | [diff] [blame] | 666 | } |
Eino-Ville Talvala | f5fb8a5 | 2012-05-10 14:22:28 -0700 | [diff] [blame] | 667 | dst->data_count -= data_bytes; |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 668 | } |
Eino-Ville Talvala | f5fb8a5 | 2012-05-10 14:22:28 -0700 | [diff] [blame] | 669 | // Shift entry array |
| 670 | memmove(entry, entry + 1, |
| 671 | sizeof(camera_metadata_buffer_entry_t) * |
| 672 | (dst->entry_count - index - 1) ); |
| 673 | dst->entry_count -= 1; |
| 674 | |
| 675 | return OK; |
| 676 | } |
| 677 | |
| 678 | int update_camera_metadata_entry(camera_metadata_t *dst, |
| 679 | size_t index, |
| 680 | const void *data, |
| 681 | size_t data_count, |
| 682 | camera_metadata_entry_t *updated_entry) { |
| 683 | if (dst == NULL) return ERROR; |
| 684 | if (index >= dst->entry_count) return ERROR; |
| 685 | |
Eino-Ville Talvala | b10d56a | 2012-11-13 11:45:12 -0800 | [diff] [blame] | 686 | camera_metadata_buffer_entry_t *entry = get_entries(dst) + index; |
Eino-Ville Talvala | f5fb8a5 | 2012-05-10 14:22:28 -0700 | [diff] [blame] | 687 | |
| 688 | size_t data_bytes = |
| 689 | calculate_camera_metadata_entry_data_size(entry->type, |
| 690 | data_count); |
Eino-Ville Talvala | 3154036 | 2012-11-07 16:36:50 -0800 | [diff] [blame] | 691 | size_t data_payload_bytes = |
| 692 | data_count * camera_metadata_type_size[entry->type]; |
| 693 | |
Eino-Ville Talvala | f5fb8a5 | 2012-05-10 14:22:28 -0700 | [diff] [blame] | 694 | size_t entry_bytes = |
| 695 | calculate_camera_metadata_entry_data_size(entry->type, |
| 696 | entry->count); |
| 697 | if (data_bytes != entry_bytes) { |
| 698 | // May need to shift/add to data array |
| 699 | if (dst->data_capacity < dst->data_count + data_bytes - entry_bytes) { |
| 700 | // No room |
| 701 | return ERROR; |
| 702 | } |
| 703 | if (entry_bytes != 0) { |
| 704 | // Remove old data |
Eino-Ville Talvala | b10d56a | 2012-11-13 11:45:12 -0800 | [diff] [blame] | 705 | uint8_t *start = get_data(dst) + entry->data.offset; |
Eino-Ville Talvala | f5fb8a5 | 2012-05-10 14:22:28 -0700 | [diff] [blame] | 706 | uint8_t *end = start + entry_bytes; |
| 707 | size_t length = dst->data_count - entry->data.offset - entry_bytes; |
| 708 | memmove(start, end, length); |
| 709 | dst->data_count -= entry_bytes; |
| 710 | |
| 711 | // Update all entry indices to account for shift |
Eino-Ville Talvala | b10d56a | 2012-11-13 11:45:12 -0800 | [diff] [blame] | 712 | camera_metadata_buffer_entry_t *e = get_entries(dst); |
Eino-Ville Talvala | f5fb8a5 | 2012-05-10 14:22:28 -0700 | [diff] [blame] | 713 | size_t i; |
| 714 | for (i = 0; i < dst->entry_count; i++) { |
| 715 | if (calculate_camera_metadata_entry_data_size( |
| 716 | e->type, e->count) > 0 && |
| 717 | e->data.offset > entry->data.offset) { |
| 718 | e->data.offset -= entry_bytes; |
| 719 | } |
| 720 | ++e; |
| 721 | } |
| 722 | } |
| 723 | |
| 724 | if (data_bytes != 0) { |
| 725 | // Append new data |
| 726 | entry->data.offset = dst->data_count; |
| 727 | |
Eino-Ville Talvala | b10d56a | 2012-11-13 11:45:12 -0800 | [diff] [blame] | 728 | memcpy(get_data(dst) + entry->data.offset, data, data_payload_bytes); |
Eino-Ville Talvala | f5fb8a5 | 2012-05-10 14:22:28 -0700 | [diff] [blame] | 729 | dst->data_count += data_bytes; |
| 730 | } |
| 731 | } else if (data_bytes != 0) { |
| 732 | // data size unchanged, reuse same data location |
Eino-Ville Talvala | b10d56a | 2012-11-13 11:45:12 -0800 | [diff] [blame] | 733 | memcpy(get_data(dst) + entry->data.offset, data, data_payload_bytes); |
Eino-Ville Talvala | f5fb8a5 | 2012-05-10 14:22:28 -0700 | [diff] [blame] | 734 | } |
| 735 | |
| 736 | if (data_bytes == 0) { |
| 737 | // Data fits into entry |
| 738 | memcpy(entry->data.value, data, |
Eino-Ville Talvala | 3154036 | 2012-11-07 16:36:50 -0800 | [diff] [blame] | 739 | data_payload_bytes); |
Eino-Ville Talvala | f5fb8a5 | 2012-05-10 14:22:28 -0700 | [diff] [blame] | 740 | } |
| 741 | |
| 742 | entry->count = data_count; |
| 743 | |
| 744 | if (updated_entry != NULL) { |
| 745 | get_camera_metadata_entry(dst, |
| 746 | index, |
| 747 | updated_entry); |
| 748 | } |
| 749 | |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 750 | return OK; |
| 751 | } |
| 752 | |
Eino-Ville Talvala | 98d02fd | 2012-05-21 14:46:49 -0700 | [diff] [blame] | 753 | int set_camera_metadata_user_pointer(camera_metadata_t *dst, void* user) { |
| 754 | if (dst == NULL) return ERROR; |
| 755 | dst->user = user; |
| 756 | return OK; |
| 757 | } |
| 758 | |
| 759 | int get_camera_metadata_user_pointer(camera_metadata_t *dst, void** user) { |
| 760 | if (dst == NULL) return ERROR; |
| 761 | *user = dst->user; |
| 762 | return OK; |
| 763 | } |
| 764 | |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 765 | static const vendor_tag_query_ops_t *vendor_tag_ops = NULL; |
| 766 | |
| 767 | const char *get_camera_metadata_section_name(uint32_t tag) { |
| 768 | uint32_t tag_section = tag >> 16; |
| 769 | if (tag_section >= VENDOR_SECTION && vendor_tag_ops != NULL) { |
Eino-Ville Talvala | 94c1901 | 2012-04-04 15:30:06 -0700 | [diff] [blame] | 770 | return vendor_tag_ops->get_camera_vendor_section_name( |
| 771 | vendor_tag_ops, |
| 772 | tag); |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 773 | } |
| 774 | if (tag_section >= ANDROID_SECTION_COUNT) { |
| 775 | return NULL; |
| 776 | } |
| 777 | return camera_metadata_section_names[tag_section]; |
| 778 | } |
| 779 | |
| 780 | const char *get_camera_metadata_tag_name(uint32_t tag) { |
| 781 | uint32_t tag_section = tag >> 16; |
| 782 | if (tag_section >= VENDOR_SECTION && vendor_tag_ops != NULL) { |
Eino-Ville Talvala | 94c1901 | 2012-04-04 15:30:06 -0700 | [diff] [blame] | 783 | return vendor_tag_ops->get_camera_vendor_tag_name( |
| 784 | vendor_tag_ops, |
| 785 | tag); |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 786 | } |
| 787 | if (tag_section >= ANDROID_SECTION_COUNT || |
| 788 | tag >= camera_metadata_section_bounds[tag_section][1] ) { |
| 789 | return NULL; |
| 790 | } |
| 791 | uint32_t tag_index = tag & 0xFFFF; |
| 792 | return tag_info[tag_section][tag_index].tag_name; |
| 793 | } |
| 794 | |
| 795 | int get_camera_metadata_tag_type(uint32_t tag) { |
| 796 | uint32_t tag_section = tag >> 16; |
| 797 | if (tag_section >= VENDOR_SECTION && vendor_tag_ops != NULL) { |
Eino-Ville Talvala | 94c1901 | 2012-04-04 15:30:06 -0700 | [diff] [blame] | 798 | return vendor_tag_ops->get_camera_vendor_tag_type( |
| 799 | vendor_tag_ops, |
| 800 | tag); |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 801 | } |
| 802 | if (tag_section >= ANDROID_SECTION_COUNT || |
| 803 | tag >= camera_metadata_section_bounds[tag_section][1] ) { |
| 804 | return -1; |
| 805 | } |
| 806 | uint32_t tag_index = tag & 0xFFFF; |
| 807 | return tag_info[tag_section][tag_index].tag_type; |
| 808 | } |
| 809 | |
| 810 | int set_camera_metadata_vendor_tag_ops(const vendor_tag_query_ops_t *query_ops) { |
| 811 | vendor_tag_ops = query_ops; |
| 812 | return OK; |
| 813 | } |
| 814 | |
Igor Murashkin | 375cfd3 | 2012-12-03 13:55:33 -0800 | [diff] [blame] | 815 | static void print_data(int fd, const uint8_t *data_ptr, uint32_t tag, int type, |
| 816 | int count, |
Eino-Ville Talvala | 1d27e5b | 2012-07-30 10:46:22 -0700 | [diff] [blame] | 817 | int indentation); |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 818 | |
Eino-Ville Talvala | 94c1901 | 2012-04-04 15:30:06 -0700 | [diff] [blame] | 819 | void dump_camera_metadata(const camera_metadata_t *metadata, |
| 820 | int fd, |
| 821 | int verbosity) { |
Eino-Ville Talvala | 1d27e5b | 2012-07-30 10:46:22 -0700 | [diff] [blame] | 822 | dump_indented_camera_metadata(metadata, fd, verbosity, 0); |
| 823 | } |
| 824 | |
| 825 | void dump_indented_camera_metadata(const camera_metadata_t *metadata, |
| 826 | int fd, |
| 827 | int verbosity, |
| 828 | int indentation) { |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 829 | if (metadata == NULL) { |
Eino-Ville Talvala | 94879bd | 2012-10-01 16:33:03 -0700 | [diff] [blame] | 830 | fdprintf(fd, "%*sDumping camera metadata array: Not allocated\n", |
Eino-Ville Talvala | 2f4aca6 | 2012-08-24 11:42:06 -0700 | [diff] [blame] | 831 | indentation, ""); |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 832 | return; |
| 833 | } |
| 834 | unsigned int i; |
Eino-Ville Talvala | 94c1901 | 2012-04-04 15:30:06 -0700 | [diff] [blame] | 835 | fdprintf(fd, |
Mark Salyzyn | 773e5c8 | 2014-03-13 13:24:19 -0700 | [diff] [blame^] | 836 | "%*sDumping camera metadata array: %zu / %zu entries, " |
| 837 | "%zu / %zu bytes of extra data.\n", indentation, "", |
Eino-Ville Talvala | 1d27e5b | 2012-07-30 10:46:22 -0700 | [diff] [blame] | 838 | metadata->entry_count, metadata->entry_capacity, |
| 839 | metadata->data_count, metadata->data_capacity); |
| 840 | fdprintf(fd, "%*sVersion: %d, Flags: %08x\n", |
| 841 | indentation + 2, "", |
Eino-Ville Talvala | 94c1901 | 2012-04-04 15:30:06 -0700 | [diff] [blame] | 842 | metadata->version, metadata->flags); |
Eino-Ville Talvala | b10d56a | 2012-11-13 11:45:12 -0800 | [diff] [blame] | 843 | camera_metadata_buffer_entry_t *entry = get_entries(metadata); |
| 844 | for (i=0; i < metadata->entry_count; i++, entry++) { |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 845 | |
| 846 | const char *tag_name, *tag_section; |
| 847 | tag_section = get_camera_metadata_section_name(entry->tag); |
| 848 | if (tag_section == NULL) { |
| 849 | tag_section = "unknownSection"; |
| 850 | } |
| 851 | tag_name = get_camera_metadata_tag_name(entry->tag); |
| 852 | if (tag_name == NULL) { |
| 853 | tag_name = "unknownTag"; |
| 854 | } |
| 855 | const char *type_name; |
| 856 | if (entry->type >= NUM_TYPES) { |
| 857 | type_name = "unknown"; |
| 858 | } else { |
| 859 | type_name = camera_metadata_type_names[entry->type]; |
| 860 | } |
Mark Salyzyn | 773e5c8 | 2014-03-13 13:24:19 -0700 | [diff] [blame^] | 861 | fdprintf(fd, "%*s%s.%s (%05x): %s[%zu]\n", |
Eino-Ville Talvala | 1d27e5b | 2012-07-30 10:46:22 -0700 | [diff] [blame] | 862 | indentation + 2, "", |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 863 | tag_section, |
| 864 | tag_name, |
| 865 | entry->tag, |
| 866 | type_name, |
| 867 | entry->count); |
| 868 | |
| 869 | if (verbosity < 1) continue; |
| 870 | |
| 871 | if (entry->type >= NUM_TYPES) continue; |
| 872 | |
| 873 | size_t type_size = camera_metadata_type_size[entry->type]; |
| 874 | uint8_t *data_ptr; |
| 875 | if ( type_size * entry->count > 4 ) { |
| 876 | if (entry->data.offset >= metadata->data_count) { |
Mark Salyzyn | 773e5c8 | 2014-03-13 13:24:19 -0700 | [diff] [blame^] | 877 | ALOGE("%s: Malformed entry data offset: %zu (max %zu)", |
Eino-Ville Talvala | 94c1901 | 2012-04-04 15:30:06 -0700 | [diff] [blame] | 878 | __FUNCTION__, |
| 879 | entry->data.offset, |
| 880 | metadata->data_count); |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 881 | continue; |
| 882 | } |
Eino-Ville Talvala | b10d56a | 2012-11-13 11:45:12 -0800 | [diff] [blame] | 883 | data_ptr = get_data(metadata) + entry->data.offset; |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 884 | } else { |
| 885 | data_ptr = entry->data.value; |
| 886 | } |
| 887 | int count = entry->count; |
| 888 | if (verbosity < 2 && count > 16) count = 16; |
| 889 | |
Igor Murashkin | 375cfd3 | 2012-12-03 13:55:33 -0800 | [diff] [blame] | 890 | print_data(fd, data_ptr, entry->tag, entry->type, count, indentation); |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 891 | } |
| 892 | } |
| 893 | |
Igor Murashkin | 375cfd3 | 2012-12-03 13:55:33 -0800 | [diff] [blame] | 894 | static void print_data(int fd, const uint8_t *data_ptr, uint32_t tag, |
Eino-Ville Talvala | 1d27e5b | 2012-07-30 10:46:22 -0700 | [diff] [blame] | 895 | int type, int count, int indentation) { |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 896 | static int values_per_line[NUM_TYPES] = { |
| 897 | [TYPE_BYTE] = 16, |
| 898 | [TYPE_INT32] = 4, |
| 899 | [TYPE_FLOAT] = 8, |
| 900 | [TYPE_INT64] = 2, |
| 901 | [TYPE_DOUBLE] = 4, |
| 902 | [TYPE_RATIONAL] = 2, |
| 903 | }; |
| 904 | size_t type_size = camera_metadata_type_size[type]; |
Igor Murashkin | 375cfd3 | 2012-12-03 13:55:33 -0800 | [diff] [blame] | 905 | char value_string_tmp[CAMERA_METADATA_ENUM_STRING_MAX_SIZE]; |
| 906 | uint32_t value; |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 907 | |
| 908 | int lines = count / values_per_line[type]; |
| 909 | if (count % values_per_line[type] != 0) lines++; |
| 910 | |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 911 | int index = 0; |
| 912 | int j, k; |
| 913 | for (j = 0; j < lines; j++) { |
Eino-Ville Talvala | 1d27e5b | 2012-07-30 10:46:22 -0700 | [diff] [blame] | 914 | fdprintf(fd, "%*s[", indentation + 4, ""); |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 915 | for (k = 0; |
| 916 | k < values_per_line[type] && count > 0; |
| 917 | k++, count--, index += type_size) { |
| 918 | |
| 919 | switch (type) { |
| 920 | case TYPE_BYTE: |
Igor Murashkin | 375cfd3 | 2012-12-03 13:55:33 -0800 | [diff] [blame] | 921 | value = *(data_ptr + index); |
| 922 | if (camera_metadata_enum_snprint(tag, |
| 923 | value, |
| 924 | value_string_tmp, |
| 925 | sizeof(value_string_tmp)) |
| 926 | == OK) { |
| 927 | fdprintf(fd, "%s ", value_string_tmp); |
| 928 | } else { |
| 929 | fdprintf(fd, "%hhu ", |
| 930 | *(data_ptr + index)); |
| 931 | } |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 932 | break; |
| 933 | case TYPE_INT32: |
Igor Murashkin | 375cfd3 | 2012-12-03 13:55:33 -0800 | [diff] [blame] | 934 | value = |
| 935 | *(int32_t*)(data_ptr + index); |
| 936 | if (camera_metadata_enum_snprint(tag, |
| 937 | value, |
| 938 | value_string_tmp, |
| 939 | sizeof(value_string_tmp)) |
| 940 | == OK) { |
| 941 | fdprintf(fd, "%s ", value_string_tmp); |
| 942 | } else { |
Mark Salyzyn | 773e5c8 | 2014-03-13 13:24:19 -0700 | [diff] [blame^] | 943 | fdprintf(fd, "%" PRId32 " ", |
Igor Murashkin | 375cfd3 | 2012-12-03 13:55:33 -0800 | [diff] [blame] | 944 | *(int32_t*)(data_ptr + index)); |
| 945 | } |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 946 | break; |
| 947 | case TYPE_FLOAT: |
Eino-Ville Talvala | 94c1901 | 2012-04-04 15:30:06 -0700 | [diff] [blame] | 948 | fdprintf(fd, "%0.2f ", |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 949 | *(float*)(data_ptr + index)); |
| 950 | break; |
| 951 | case TYPE_INT64: |
Mark Salyzyn | 773e5c8 | 2014-03-13 13:24:19 -0700 | [diff] [blame^] | 952 | fdprintf(fd, "%" PRId64 " ", |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 953 | *(int64_t*)(data_ptr + index)); |
| 954 | break; |
| 955 | case TYPE_DOUBLE: |
Eino-Ville Talvala | 94c1901 | 2012-04-04 15:30:06 -0700 | [diff] [blame] | 956 | fdprintf(fd, "%0.2f ", |
Eino-Ville Talvala | 3154036 | 2012-11-07 16:36:50 -0800 | [diff] [blame] | 957 | *(double*)(data_ptr + index)); |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 958 | break; |
| 959 | case TYPE_RATIONAL: { |
| 960 | int32_t numerator = *(int32_t*)(data_ptr + index); |
| 961 | int32_t denominator = *(int32_t*)(data_ptr + index + 4); |
Eino-Ville Talvala | 94c1901 | 2012-04-04 15:30:06 -0700 | [diff] [blame] | 962 | fdprintf(fd, "(%d / %d) ", |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 963 | numerator, denominator); |
| 964 | break; |
| 965 | } |
| 966 | default: |
Eino-Ville Talvala | 94c1901 | 2012-04-04 15:30:06 -0700 | [diff] [blame] | 967 | fdprintf(fd, "??? "); |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 968 | } |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 969 | } |
Eino-Ville Talvala | 94c1901 | 2012-04-04 15:30:06 -0700 | [diff] [blame] | 970 | fdprintf(fd, "]\n"); |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 971 | } |
| 972 | } |