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 |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 17 | #include <system/camera_metadata.h> |
Igor Murashkin | d1cecc1 | 2013-04-30 17:21:54 -0700 | [diff] [blame] | 18 | |
| 19 | #define LOG_TAG "camera_metadata" |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 20 | #include <cutils/log.h> |
Alex Ray | 151389f | 2013-11-12 18:09:31 -0800 | [diff] [blame^] | 21 | #include <assert.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 | |
Alex Ray | 151389f | 2013-11-12 18:09:31 -0800 | [diff] [blame^] | 225 | assert(validate_camera_metadata_structure(metadata, NULL) == OK); |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 226 | return metadata; |
| 227 | } |
| 228 | void free_camera_metadata(camera_metadata_t *metadata) { |
| 229 | free(metadata); |
| 230 | } |
| 231 | |
| 232 | size_t calculate_camera_metadata_size(size_t entry_count, |
| 233 | size_t data_count) { |
| 234 | size_t memory_needed = sizeof(camera_metadata_t); |
Eino-Ville Talvala | 3154036 | 2012-11-07 16:36:50 -0800 | [diff] [blame] | 235 | // Start entry list at aligned boundary |
| 236 | memory_needed = ALIGN_TO(memory_needed, ENTRY_ALIGNMENT); |
Eino-Ville Talvala | f5fb8a5 | 2012-05-10 14:22:28 -0700 | [diff] [blame] | 237 | memory_needed += sizeof(camera_metadata_buffer_entry_t[entry_count]); |
Eino-Ville Talvala | 3154036 | 2012-11-07 16:36:50 -0800 | [diff] [blame] | 238 | // Start buffer list at aligned boundary |
| 239 | memory_needed = ALIGN_TO(memory_needed, DATA_ALIGNMENT); |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 240 | memory_needed += sizeof(uint8_t[data_count]); |
| 241 | return memory_needed; |
| 242 | } |
| 243 | |
| 244 | size_t get_camera_metadata_size(const camera_metadata_t *metadata) { |
| 245 | if (metadata == NULL) return ERROR; |
| 246 | |
| 247 | return metadata->size; |
| 248 | } |
| 249 | |
| 250 | size_t get_camera_metadata_compact_size(const camera_metadata_t *metadata) { |
| 251 | if (metadata == NULL) return ERROR; |
| 252 | |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 253 | return calculate_camera_metadata_size(metadata->entry_count, |
Eino-Ville Talvala | b10d56a | 2012-11-13 11:45:12 -0800 | [diff] [blame] | 254 | metadata->data_count); |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 255 | } |
| 256 | |
| 257 | size_t get_camera_metadata_entry_count(const camera_metadata_t *metadata) { |
| 258 | return metadata->entry_count; |
| 259 | } |
| 260 | |
| 261 | size_t get_camera_metadata_entry_capacity(const camera_metadata_t *metadata) { |
| 262 | return metadata->entry_capacity; |
| 263 | } |
| 264 | |
| 265 | size_t get_camera_metadata_data_count(const camera_metadata_t *metadata) { |
| 266 | return metadata->data_count; |
| 267 | } |
| 268 | |
| 269 | size_t get_camera_metadata_data_capacity(const camera_metadata_t *metadata) { |
| 270 | return metadata->data_capacity; |
| 271 | } |
| 272 | |
| 273 | camera_metadata_t* copy_camera_metadata(void *dst, size_t dst_size, |
| 274 | const camera_metadata_t *src) { |
| 275 | size_t memory_needed = get_camera_metadata_compact_size(src); |
| 276 | |
| 277 | if (dst == NULL) return NULL; |
| 278 | if (dst_size < memory_needed) return NULL; |
| 279 | |
Eino-Ville Talvala | b10d56a | 2012-11-13 11:45:12 -0800 | [diff] [blame] | 280 | camera_metadata_t *metadata = |
| 281 | 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] | 282 | |
Eino-Ville Talvala | 94c1901 | 2012-04-04 15:30:06 -0700 | [diff] [blame] | 283 | metadata->flags = src->flags; |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 284 | metadata->entry_count = src->entry_count; |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 285 | metadata->data_count = src->data_count; |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 286 | |
Eino-Ville Talvala | b10d56a | 2012-11-13 11:45:12 -0800 | [diff] [blame] | 287 | memcpy(get_entries(metadata), get_entries(src), |
Eino-Ville Talvala | f5fb8a5 | 2012-05-10 14:22:28 -0700 | [diff] [blame] | 288 | sizeof(camera_metadata_buffer_entry_t[metadata->entry_count])); |
Eino-Ville Talvala | b10d56a | 2012-11-13 11:45:12 -0800 | [diff] [blame] | 289 | memcpy(get_data(metadata), get_data(src), |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 290 | sizeof(uint8_t[metadata->data_count])); |
Eino-Ville Talvala | 98d02fd | 2012-05-21 14:46:49 -0700 | [diff] [blame] | 291 | metadata->user = NULL; |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 292 | |
Alex Ray | 151389f | 2013-11-12 18:09:31 -0800 | [diff] [blame^] | 293 | assert(validate_camera_metadata_structure(metadata, NULL) == OK); |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 294 | return metadata; |
| 295 | } |
| 296 | |
Igor Murashkin | d1cecc1 | 2013-04-30 17:21:54 -0700 | [diff] [blame] | 297 | int validate_camera_metadata_structure(const camera_metadata_t *metadata, |
| 298 | const size_t *expected_size) { |
| 299 | |
| 300 | if (metadata == NULL) { |
| 301 | return ERROR; |
| 302 | } |
| 303 | |
| 304 | // Check that the metadata pointer is well-aligned first. |
| 305 | { |
| 306 | struct { |
| 307 | const char *name; |
| 308 | size_t alignment; |
| 309 | } alignments[] = { |
| 310 | { |
| 311 | .name = "camera_metadata", |
| 312 | .alignment = _Alignas(struct camera_metadata) |
| 313 | }, |
| 314 | { |
| 315 | .name = "camera_metadata_buffer_entry", |
| 316 | .alignment = _Alignas(struct camera_metadata_buffer_entry) |
| 317 | }, |
| 318 | { |
| 319 | .name = "camera_metadata_data", |
| 320 | .alignment = _Alignas(union camera_metadata_data) |
| 321 | }, |
| 322 | }; |
| 323 | |
| 324 | for (size_t i = 0; i < sizeof(alignments)/sizeof(alignments[0]); ++i) { |
| 325 | uintptr_t aligned_ptr = ALIGN_TO(metadata, alignments[i].alignment); |
| 326 | |
| 327 | if ((uintptr_t)metadata != aligned_ptr) { |
| 328 | ALOGE("%s: Metadata pointer is not aligned (actual %p, " |
| 329 | "expected %p) to type %s", |
| 330 | __FUNCTION__, metadata, |
| 331 | (void*)aligned_ptr, alignments[i].name); |
| 332 | return ERROR; |
| 333 | } |
| 334 | } |
| 335 | } |
| 336 | |
| 337 | /** |
| 338 | * Check that the metadata contents are correct |
| 339 | */ |
| 340 | |
| 341 | if (expected_size != NULL && metadata->size > *expected_size) { |
| 342 | ALOGE("%s: Metadata size (%u) should be <= expected size (%u)", |
| 343 | __FUNCTION__, metadata->size, *expected_size); |
| 344 | return ERROR; |
| 345 | } |
| 346 | |
| 347 | if (metadata->entry_count > metadata->entry_capacity) { |
| 348 | ALOGE("%s: Entry count (%u) should be <= entry capacity (%u)", |
| 349 | __FUNCTION__, metadata->entry_count, metadata->entry_capacity); |
| 350 | return ERROR; |
| 351 | } |
| 352 | |
| 353 | uptrdiff_t entries_end = metadata->entries_start + metadata->entry_capacity; |
| 354 | if (entries_end < metadata->entries_start || // overflow check |
| 355 | entries_end > metadata->data_start) { |
| 356 | |
| 357 | ALOGE("%s: Entry start + capacity (%u) should be <= data start (%u)", |
| 358 | __FUNCTION__, |
| 359 | (metadata->entries_start + metadata->entry_capacity), |
| 360 | metadata->data_start); |
| 361 | return ERROR; |
| 362 | } |
| 363 | |
| 364 | uptrdiff_t data_end = metadata->data_start + metadata->data_capacity; |
| 365 | if (data_end < metadata->data_start || // overflow check |
| 366 | data_end > metadata->size) { |
| 367 | |
| 368 | ALOGE("%s: Data start + capacity (%u) should be <= total size (%u)", |
| 369 | __FUNCTION__, |
| 370 | (metadata->data_start + metadata->data_capacity), |
| 371 | metadata->size); |
| 372 | return ERROR; |
| 373 | } |
| 374 | |
| 375 | // Validate each entry |
| 376 | size_t entry_count = metadata->entry_count; |
| 377 | camera_metadata_buffer_entry_t *entries = get_entries(metadata); |
| 378 | |
| 379 | for (size_t i = 0; i < entry_count; ++i) { |
| 380 | |
| 381 | if ((uintptr_t)&entries[i] != ALIGN_TO(&entries[i], ENTRY_ALIGNMENT)) { |
| 382 | ALOGE("%s: Entry index %u had bad alignment (address %p)," |
| 383 | " expected alignment %d", |
| 384 | __FUNCTION__, i, &entries[i], ENTRY_ALIGNMENT); |
| 385 | return ERROR; |
| 386 | } |
| 387 | |
| 388 | camera_metadata_buffer_entry_t entry = entries[i]; |
| 389 | |
| 390 | if (entry.type >= NUM_TYPES) { |
| 391 | ALOGE("%s: Entry index %u had a bad type %d", |
| 392 | __FUNCTION__, i, entry.type); |
| 393 | return ERROR; |
| 394 | } |
| 395 | |
| 396 | // TODO: fix vendor_tag_ops across processes so we don't need to special |
| 397 | // case vendor-specific tags |
| 398 | uint32_t tag_section = entry.tag >> 16; |
| 399 | int tag_type = get_camera_metadata_tag_type(entry.tag); |
| 400 | if (tag_type != (int)entry.type && tag_section < VENDOR_SECTION) { |
| 401 | ALOGE("%s: Entry index %u had tag type %d, but the type was %d", |
| 402 | __FUNCTION__, i, tag_type, entry.type); |
| 403 | return ERROR; |
| 404 | } |
| 405 | |
| 406 | size_t data_size = |
| 407 | calculate_camera_metadata_entry_data_size(entry.type, |
| 408 | entry.count); |
| 409 | |
| 410 | if (data_size != 0) { |
| 411 | camera_metadata_data_t *data = |
| 412 | (camera_metadata_data_t*) (get_data(metadata) + |
| 413 | entry.data.offset); |
| 414 | |
| 415 | if ((uintptr_t)data != ALIGN_TO(data, DATA_ALIGNMENT)) { |
| 416 | ALOGE("%s: Entry index %u had bad data alignment (address %p)," |
| 417 | " expected align %d, (tag name %s, data size %u)", |
| 418 | __FUNCTION__, i, data, DATA_ALIGNMENT, |
| 419 | get_camera_metadata_tag_name(entry.tag) ?: "unknown", |
| 420 | data_size); |
| 421 | return ERROR; |
| 422 | } |
| 423 | |
| 424 | size_t data_entry_end = entry.data.offset + data_size; |
| 425 | if (data_entry_end < entry.data.offset || // overflow check |
| 426 | data_entry_end > metadata->data_capacity) { |
| 427 | |
| 428 | ALOGE("%s: Entry index %u data ends (%u) beyond the capacity " |
| 429 | "%u", __FUNCTION__, i, data_entry_end, |
| 430 | metadata->data_capacity); |
| 431 | return ERROR; |
| 432 | } |
| 433 | |
| 434 | } else if (entry.count == 0) { |
| 435 | if (entry.data.offset != 0) { |
| 436 | ALOGE("%s: Entry index %u had 0 items, but offset was non-0 " |
Zhijun He | 3064d31 | 2013-07-15 13:55:11 -0700 | [diff] [blame] | 437 | "(%u), tag name: %s", __FUNCTION__, i, entry.data.offset, |
| 438 | get_camera_metadata_tag_name(entry.tag) ?: "unknown"); |
Igor Murashkin | d1cecc1 | 2013-04-30 17:21:54 -0700 | [diff] [blame] | 439 | return ERROR; |
| 440 | } |
| 441 | } // else data stored inline, so we look at value which can be anything. |
| 442 | } |
| 443 | |
| 444 | return OK; |
| 445 | } |
| 446 | |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 447 | int append_camera_metadata(camera_metadata_t *dst, |
| 448 | const camera_metadata_t *src) { |
| 449 | if (dst == NULL || src == NULL ) return ERROR; |
| 450 | |
| 451 | if (dst->entry_capacity < src->entry_count + dst->entry_count) return ERROR; |
| 452 | if (dst->data_capacity < src->data_count + dst->data_count) return ERROR; |
| 453 | |
Eino-Ville Talvala | b10d56a | 2012-11-13 11:45:12 -0800 | [diff] [blame] | 454 | memcpy(get_entries(dst) + dst->entry_count, get_entries(src), |
Eino-Ville Talvala | f5fb8a5 | 2012-05-10 14:22:28 -0700 | [diff] [blame] | 455 | sizeof(camera_metadata_buffer_entry_t[src->entry_count])); |
Eino-Ville Talvala | b10d56a | 2012-11-13 11:45:12 -0800 | [diff] [blame] | 456 | memcpy(get_data(dst) + dst->data_count, get_data(src), |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 457 | sizeof(uint8_t[src->data_count])); |
| 458 | if (dst->data_count != 0) { |
Eino-Ville Talvala | b10d56a | 2012-11-13 11:45:12 -0800 | [diff] [blame] | 459 | camera_metadata_buffer_entry_t *entry = get_entries(dst) + dst->entry_count; |
| 460 | for (size_t i = 0; i < src->entry_count; i++, entry++) { |
| 461 | if ( calculate_camera_metadata_entry_data_size(entry->type, |
| 462 | entry->count) > 0 ) { |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 463 | entry->data.offset += dst->data_count; |
| 464 | } |
| 465 | } |
| 466 | } |
Eino-Ville Talvala | f5fb8a5 | 2012-05-10 14:22:28 -0700 | [diff] [blame] | 467 | if (dst->entry_count == 0) { |
| 468 | // Appending onto empty buffer, keep sorted state |
| 469 | dst->flags |= src->flags & FLAG_SORTED; |
| 470 | } else if (src->entry_count != 0) { |
| 471 | // Both src, dst are nonempty, cannot assume sort remains |
| 472 | dst->flags &= ~FLAG_SORTED; |
| 473 | } else { |
| 474 | // Src is empty, keep dst sorted state |
| 475 | } |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 476 | dst->entry_count += src->entry_count; |
| 477 | dst->data_count += src->data_count; |
| 478 | |
Alex Ray | 151389f | 2013-11-12 18:09:31 -0800 | [diff] [blame^] | 479 | assert(validate_camera_metadata_structure(dst, NULL) == OK); |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 480 | return OK; |
| 481 | } |
| 482 | |
Eino-Ville Talvala | 2f4aca6 | 2012-08-24 11:42:06 -0700 | [diff] [blame] | 483 | camera_metadata_t *clone_camera_metadata(const camera_metadata_t *src) { |
Eino-Ville Talvala | fd25882 | 2012-06-06 17:22:42 -0700 | [diff] [blame] | 484 | int res; |
Eino-Ville Talvala | 2f4aca6 | 2012-08-24 11:42:06 -0700 | [diff] [blame] | 485 | if (src == NULL) return NULL; |
Eino-Ville Talvala | fd25882 | 2012-06-06 17:22:42 -0700 | [diff] [blame] | 486 | camera_metadata_t *clone = allocate_camera_metadata( |
| 487 | get_camera_metadata_entry_count(src), |
| 488 | get_camera_metadata_data_count(src)); |
| 489 | if (clone != NULL) { |
| 490 | res = append_camera_metadata(clone, src); |
| 491 | if (res != OK) { |
| 492 | free_camera_metadata(clone); |
| 493 | clone = NULL; |
| 494 | } |
| 495 | } |
Alex Ray | 151389f | 2013-11-12 18:09:31 -0800 | [diff] [blame^] | 496 | assert(validate_camera_metadata_structure(clone, NULL) == OK); |
Eino-Ville Talvala | fd25882 | 2012-06-06 17:22:42 -0700 | [diff] [blame] | 497 | return clone; |
| 498 | } |
| 499 | |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 500 | size_t calculate_camera_metadata_entry_data_size(uint8_t type, |
| 501 | size_t data_count) { |
| 502 | if (type >= NUM_TYPES) return 0; |
| 503 | size_t data_bytes = data_count * |
| 504 | camera_metadata_type_size[type]; |
Eino-Ville Talvala | 3154036 | 2012-11-07 16:36:50 -0800 | [diff] [blame] | 505 | return data_bytes <= 4 ? 0 : ALIGN_TO(data_bytes, DATA_ALIGNMENT); |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 506 | } |
| 507 | |
Eino-Ville Talvala | 94c1901 | 2012-04-04 15:30:06 -0700 | [diff] [blame] | 508 | static int add_camera_metadata_entry_raw(camera_metadata_t *dst, |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 509 | uint32_t tag, |
| 510 | uint8_t type, |
| 511 | const void *data, |
| 512 | size_t data_count) { |
| 513 | |
| 514 | if (dst == NULL) return ERROR; |
| 515 | if (dst->entry_count == dst->entry_capacity) return ERROR; |
| 516 | if (data == NULL) return ERROR; |
| 517 | |
| 518 | size_t data_bytes = |
| 519 | calculate_camera_metadata_entry_data_size(type, data_count); |
Eino-Ville Talvala | 3154036 | 2012-11-07 16:36:50 -0800 | [diff] [blame] | 520 | if (data_bytes + dst->data_count > dst->data_capacity) return ERROR; |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 521 | |
Eino-Ville Talvala | 3154036 | 2012-11-07 16:36:50 -0800 | [diff] [blame] | 522 | size_t data_payload_bytes = |
| 523 | data_count * camera_metadata_type_size[type]; |
Eino-Ville Talvala | b10d56a | 2012-11-13 11:45:12 -0800 | [diff] [blame] | 524 | camera_metadata_buffer_entry_t *entry = get_entries(dst) + dst->entry_count; |
Zhijun He | 3064d31 | 2013-07-15 13:55:11 -0700 | [diff] [blame] | 525 | memset(entry, 0, sizeof(camera_metadata_buffer_entry_t)); |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 526 | entry->tag = tag; |
| 527 | entry->type = type; |
| 528 | entry->count = data_count; |
| 529 | |
| 530 | if (data_bytes == 0) { |
| 531 | memcpy(entry->data.value, 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 | } else { |
| 534 | entry->data.offset = dst->data_count; |
Eino-Ville Talvala | b10d56a | 2012-11-13 11:45:12 -0800 | [diff] [blame] | 535 | memcpy(get_data(dst) + entry->data.offset, data, |
Eino-Ville Talvala | 3154036 | 2012-11-07 16:36:50 -0800 | [diff] [blame] | 536 | data_payload_bytes); |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 537 | dst->data_count += data_bytes; |
| 538 | } |
| 539 | dst->entry_count++; |
Eino-Ville Talvala | 94c1901 | 2012-04-04 15:30:06 -0700 | [diff] [blame] | 540 | dst->flags &= ~FLAG_SORTED; |
Alex Ray | 151389f | 2013-11-12 18:09:31 -0800 | [diff] [blame^] | 541 | assert(validate_camera_metadata_structure(dst, NULL) == OK); |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 542 | return OK; |
| 543 | } |
| 544 | |
| 545 | int add_camera_metadata_entry(camera_metadata_t *dst, |
| 546 | uint32_t tag, |
| 547 | const void *data, |
| 548 | size_t data_count) { |
| 549 | |
| 550 | int type = get_camera_metadata_tag_type(tag); |
| 551 | if (type == -1) { |
Eino-Ville Talvala | 94c1901 | 2012-04-04 15:30:06 -0700 | [diff] [blame] | 552 | ALOGE("%s: Unknown tag %04x.", __FUNCTION__, tag); |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 553 | return ERROR; |
| 554 | } |
| 555 | |
| 556 | return add_camera_metadata_entry_raw(dst, |
| 557 | tag, |
| 558 | type, |
| 559 | data, |
| 560 | data_count); |
| 561 | } |
| 562 | |
Eino-Ville Talvala | 94c1901 | 2012-04-04 15:30:06 -0700 | [diff] [blame] | 563 | static int compare_entry_tags(const void *p1, const void *p2) { |
Eino-Ville Talvala | f5fb8a5 | 2012-05-10 14:22:28 -0700 | [diff] [blame] | 564 | uint32_t tag1 = ((camera_metadata_buffer_entry_t*)p1)->tag; |
| 565 | uint32_t tag2 = ((camera_metadata_buffer_entry_t*)p2)->tag; |
Eino-Ville Talvala | 94c1901 | 2012-04-04 15:30:06 -0700 | [diff] [blame] | 566 | return tag1 < tag2 ? -1 : |
| 567 | tag1 == tag2 ? 0 : |
| 568 | 1; |
| 569 | } |
| 570 | |
| 571 | int sort_camera_metadata(camera_metadata_t *dst) { |
| 572 | if (dst == NULL) return ERROR; |
| 573 | if (dst->flags & FLAG_SORTED) return OK; |
| 574 | |
Eino-Ville Talvala | b10d56a | 2012-11-13 11:45:12 -0800 | [diff] [blame] | 575 | qsort(get_entries(dst), dst->entry_count, |
Eino-Ville Talvala | f5fb8a5 | 2012-05-10 14:22:28 -0700 | [diff] [blame] | 576 | sizeof(camera_metadata_buffer_entry_t), |
Eino-Ville Talvala | 94c1901 | 2012-04-04 15:30:06 -0700 | [diff] [blame] | 577 | compare_entry_tags); |
| 578 | dst->flags |= FLAG_SORTED; |
| 579 | |
Alex Ray | 151389f | 2013-11-12 18:09:31 -0800 | [diff] [blame^] | 580 | assert(validate_camera_metadata_structure(dst, NULL) == OK); |
Eino-Ville Talvala | 94c1901 | 2012-04-04 15:30:06 -0700 | [diff] [blame] | 581 | return OK; |
| 582 | } |
| 583 | |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 584 | int get_camera_metadata_entry(camera_metadata_t *src, |
Eino-Ville Talvala | f5fb8a5 | 2012-05-10 14:22:28 -0700 | [diff] [blame] | 585 | size_t index, |
| 586 | camera_metadata_entry_t *entry) { |
| 587 | if (src == NULL || entry == NULL) return ERROR; |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 588 | if (index >= src->entry_count) return ERROR; |
| 589 | |
Eino-Ville Talvala | b10d56a | 2012-11-13 11:45:12 -0800 | [diff] [blame] | 590 | camera_metadata_buffer_entry_t *buffer_entry = get_entries(src) + index; |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 591 | |
Eino-Ville Talvala | f5fb8a5 | 2012-05-10 14:22:28 -0700 | [diff] [blame] | 592 | entry->index = index; |
| 593 | entry->tag = buffer_entry->tag; |
| 594 | entry->type = buffer_entry->type; |
| 595 | entry->count = buffer_entry->count; |
| 596 | if (buffer_entry->count * |
| 597 | camera_metadata_type_size[buffer_entry->type] > 4) { |
Eino-Ville Talvala | b10d56a | 2012-11-13 11:45:12 -0800 | [diff] [blame] | 598 | entry->data.u8 = get_data(src) + buffer_entry->data.offset; |
Eino-Ville Talvala | f5fb8a5 | 2012-05-10 14:22:28 -0700 | [diff] [blame] | 599 | } else { |
| 600 | entry->data.u8 = buffer_entry->data.value; |
Eino-Ville Talvala | 94c1901 | 2012-04-04 15:30:06 -0700 | [diff] [blame] | 601 | } |
| 602 | return OK; |
| 603 | } |
| 604 | |
Alex Ray | 71fe0f8 | 2013-10-21 12:57:05 -0700 | [diff] [blame] | 605 | int get_camera_metadata_ro_entry(const camera_metadata_t *src, |
| 606 | size_t index, |
| 607 | camera_metadata_ro_entry_t *entry) { |
| 608 | return get_camera_metadata_entry((camera_metadata_t*)src, index, |
| 609 | (camera_metadata_entry_t*)entry); |
| 610 | } |
| 611 | |
Eino-Ville Talvala | 94c1901 | 2012-04-04 15:30:06 -0700 | [diff] [blame] | 612 | int find_camera_metadata_entry(camera_metadata_t *src, |
| 613 | uint32_t tag, |
Eino-Ville Talvala | f5fb8a5 | 2012-05-10 14:22:28 -0700 | [diff] [blame] | 614 | camera_metadata_entry_t *entry) { |
Eino-Ville Talvala | 94c1901 | 2012-04-04 15:30:06 -0700 | [diff] [blame] | 615 | if (src == NULL) return ERROR; |
| 616 | |
Eino-Ville Talvala | f5fb8a5 | 2012-05-10 14:22:28 -0700 | [diff] [blame] | 617 | uint32_t index; |
Eino-Ville Talvala | 94c1901 | 2012-04-04 15:30:06 -0700 | [diff] [blame] | 618 | if (src->flags & FLAG_SORTED) { |
| 619 | // Sorted entries, do a binary search |
Eino-Ville Talvala | f5fb8a5 | 2012-05-10 14:22:28 -0700 | [diff] [blame] | 620 | camera_metadata_buffer_entry_t *search_entry = NULL; |
| 621 | camera_metadata_buffer_entry_t key; |
Eino-Ville Talvala | 94c1901 | 2012-04-04 15:30:06 -0700 | [diff] [blame] | 622 | key.tag = tag; |
Eino-Ville Talvala | f5fb8a5 | 2012-05-10 14:22:28 -0700 | [diff] [blame] | 623 | search_entry = bsearch(&key, |
Eino-Ville Talvala | b10d56a | 2012-11-13 11:45:12 -0800 | [diff] [blame] | 624 | get_entries(src), |
Eino-Ville Talvala | 94c1901 | 2012-04-04 15:30:06 -0700 | [diff] [blame] | 625 | src->entry_count, |
Eino-Ville Talvala | f5fb8a5 | 2012-05-10 14:22:28 -0700 | [diff] [blame] | 626 | sizeof(camera_metadata_buffer_entry_t), |
Eino-Ville Talvala | 94c1901 | 2012-04-04 15:30:06 -0700 | [diff] [blame] | 627 | compare_entry_tags); |
Eino-Ville Talvala | f5fb8a5 | 2012-05-10 14:22:28 -0700 | [diff] [blame] | 628 | if (search_entry == NULL) return NOT_FOUND; |
Eino-Ville Talvala | b10d56a | 2012-11-13 11:45:12 -0800 | [diff] [blame] | 629 | index = search_entry - get_entries(src); |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 630 | } else { |
Eino-Ville Talvala | 94c1901 | 2012-04-04 15:30:06 -0700 | [diff] [blame] | 631 | // Not sorted, linear search |
Eino-Ville Talvala | b10d56a | 2012-11-13 11:45:12 -0800 | [diff] [blame] | 632 | camera_metadata_buffer_entry_t *search_entry = get_entries(src); |
| 633 | for (index = 0; index < src->entry_count; index++, search_entry++) { |
| 634 | if (search_entry->tag == tag) { |
Eino-Ville Talvala | 94c1901 | 2012-04-04 15:30:06 -0700 | [diff] [blame] | 635 | break; |
| 636 | } |
| 637 | } |
Eino-Ville Talvala | f5fb8a5 | 2012-05-10 14:22:28 -0700 | [diff] [blame] | 638 | if (index == src->entry_count) return NOT_FOUND; |
Eino-Ville Talvala | 94c1901 | 2012-04-04 15:30:06 -0700 | [diff] [blame] | 639 | } |
Eino-Ville Talvala | 94c1901 | 2012-04-04 15:30:06 -0700 | [diff] [blame] | 640 | |
Eino-Ville Talvala | f5fb8a5 | 2012-05-10 14:22:28 -0700 | [diff] [blame] | 641 | return get_camera_metadata_entry(src, index, |
| 642 | entry); |
| 643 | } |
| 644 | |
Eino-Ville Talvala | 2f4aca6 | 2012-08-24 11:42:06 -0700 | [diff] [blame] | 645 | int find_camera_metadata_ro_entry(const camera_metadata_t *src, |
| 646 | uint32_t tag, |
| 647 | camera_metadata_ro_entry_t *entry) { |
| 648 | return find_camera_metadata_entry((camera_metadata_t*)src, tag, |
| 649 | (camera_metadata_entry_t*)entry); |
| 650 | } |
| 651 | |
| 652 | |
Eino-Ville Talvala | f5fb8a5 | 2012-05-10 14:22:28 -0700 | [diff] [blame] | 653 | int delete_camera_metadata_entry(camera_metadata_t *dst, |
| 654 | size_t index) { |
| 655 | if (dst == NULL) return ERROR; |
| 656 | if (index >= dst->entry_count) return ERROR; |
| 657 | |
Eino-Ville Talvala | b10d56a | 2012-11-13 11:45:12 -0800 | [diff] [blame] | 658 | camera_metadata_buffer_entry_t *entry = get_entries(dst) + index; |
Eino-Ville Talvala | f5fb8a5 | 2012-05-10 14:22:28 -0700 | [diff] [blame] | 659 | size_t data_bytes = calculate_camera_metadata_entry_data_size(entry->type, |
| 660 | entry->count); |
| 661 | |
| 662 | if (data_bytes > 0) { |
| 663 | // Shift data buffer to overwrite deleted data |
Eino-Ville Talvala | b10d56a | 2012-11-13 11:45:12 -0800 | [diff] [blame] | 664 | uint8_t *start = get_data(dst) + entry->data.offset; |
Eino-Ville Talvala | f5fb8a5 | 2012-05-10 14:22:28 -0700 | [diff] [blame] | 665 | uint8_t *end = start + data_bytes; |
| 666 | size_t length = dst->data_count - entry->data.offset - data_bytes; |
| 667 | memmove(start, end, length); |
| 668 | |
| 669 | // Update all entry indices to account for shift |
Eino-Ville Talvala | b10d56a | 2012-11-13 11:45:12 -0800 | [diff] [blame] | 670 | camera_metadata_buffer_entry_t *e = get_entries(dst); |
Eino-Ville Talvala | f5fb8a5 | 2012-05-10 14:22:28 -0700 | [diff] [blame] | 671 | size_t i; |
| 672 | for (i = 0; i < dst->entry_count; i++) { |
| 673 | if (calculate_camera_metadata_entry_data_size( |
| 674 | e->type, e->count) > 0 && |
| 675 | e->data.offset > entry->data.offset) { |
| 676 | e->data.offset -= data_bytes; |
| 677 | } |
| 678 | ++e; |
Eino-Ville Talvala | 94c1901 | 2012-04-04 15:30:06 -0700 | [diff] [blame] | 679 | } |
Eino-Ville Talvala | f5fb8a5 | 2012-05-10 14:22:28 -0700 | [diff] [blame] | 680 | dst->data_count -= data_bytes; |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 681 | } |
Eino-Ville Talvala | f5fb8a5 | 2012-05-10 14:22:28 -0700 | [diff] [blame] | 682 | // Shift entry array |
| 683 | memmove(entry, entry + 1, |
| 684 | sizeof(camera_metadata_buffer_entry_t) * |
| 685 | (dst->entry_count - index - 1) ); |
| 686 | dst->entry_count -= 1; |
| 687 | |
Alex Ray | 151389f | 2013-11-12 18:09:31 -0800 | [diff] [blame^] | 688 | assert(validate_camera_metadata_structure(dst, NULL) == OK); |
Eino-Ville Talvala | f5fb8a5 | 2012-05-10 14:22:28 -0700 | [diff] [blame] | 689 | return OK; |
| 690 | } |
| 691 | |
| 692 | int update_camera_metadata_entry(camera_metadata_t *dst, |
| 693 | size_t index, |
| 694 | const void *data, |
| 695 | size_t data_count, |
| 696 | camera_metadata_entry_t *updated_entry) { |
| 697 | if (dst == NULL) return ERROR; |
| 698 | if (index >= dst->entry_count) return ERROR; |
| 699 | |
Eino-Ville Talvala | b10d56a | 2012-11-13 11:45:12 -0800 | [diff] [blame] | 700 | camera_metadata_buffer_entry_t *entry = get_entries(dst) + index; |
Eino-Ville Talvala | f5fb8a5 | 2012-05-10 14:22:28 -0700 | [diff] [blame] | 701 | |
| 702 | size_t data_bytes = |
| 703 | calculate_camera_metadata_entry_data_size(entry->type, |
| 704 | data_count); |
Eino-Ville Talvala | 3154036 | 2012-11-07 16:36:50 -0800 | [diff] [blame] | 705 | size_t data_payload_bytes = |
| 706 | data_count * camera_metadata_type_size[entry->type]; |
| 707 | |
Eino-Ville Talvala | f5fb8a5 | 2012-05-10 14:22:28 -0700 | [diff] [blame] | 708 | size_t entry_bytes = |
| 709 | calculate_camera_metadata_entry_data_size(entry->type, |
| 710 | entry->count); |
| 711 | if (data_bytes != entry_bytes) { |
| 712 | // May need to shift/add to data array |
| 713 | if (dst->data_capacity < dst->data_count + data_bytes - entry_bytes) { |
| 714 | // No room |
| 715 | return ERROR; |
| 716 | } |
| 717 | if (entry_bytes != 0) { |
| 718 | // Remove old data |
Eino-Ville Talvala | b10d56a | 2012-11-13 11:45:12 -0800 | [diff] [blame] | 719 | uint8_t *start = get_data(dst) + entry->data.offset; |
Eino-Ville Talvala | f5fb8a5 | 2012-05-10 14:22:28 -0700 | [diff] [blame] | 720 | uint8_t *end = start + entry_bytes; |
| 721 | size_t length = dst->data_count - entry->data.offset - entry_bytes; |
| 722 | memmove(start, end, length); |
| 723 | dst->data_count -= entry_bytes; |
| 724 | |
| 725 | // Update all entry indices to account for shift |
Eino-Ville Talvala | b10d56a | 2012-11-13 11:45:12 -0800 | [diff] [blame] | 726 | camera_metadata_buffer_entry_t *e = get_entries(dst); |
Eino-Ville Talvala | f5fb8a5 | 2012-05-10 14:22:28 -0700 | [diff] [blame] | 727 | size_t i; |
| 728 | for (i = 0; i < dst->entry_count; i++) { |
| 729 | if (calculate_camera_metadata_entry_data_size( |
| 730 | e->type, e->count) > 0 && |
| 731 | e->data.offset > entry->data.offset) { |
| 732 | e->data.offset -= entry_bytes; |
| 733 | } |
| 734 | ++e; |
| 735 | } |
| 736 | } |
| 737 | |
| 738 | if (data_bytes != 0) { |
| 739 | // Append new data |
| 740 | entry->data.offset = dst->data_count; |
| 741 | |
Eino-Ville Talvala | b10d56a | 2012-11-13 11:45:12 -0800 | [diff] [blame] | 742 | memcpy(get_data(dst) + entry->data.offset, data, data_payload_bytes); |
Eino-Ville Talvala | f5fb8a5 | 2012-05-10 14:22:28 -0700 | [diff] [blame] | 743 | dst->data_count += data_bytes; |
| 744 | } |
| 745 | } else if (data_bytes != 0) { |
| 746 | // data size unchanged, reuse same data location |
Eino-Ville Talvala | b10d56a | 2012-11-13 11:45:12 -0800 | [diff] [blame] | 747 | memcpy(get_data(dst) + entry->data.offset, data, data_payload_bytes); |
Eino-Ville Talvala | f5fb8a5 | 2012-05-10 14:22:28 -0700 | [diff] [blame] | 748 | } |
| 749 | |
| 750 | if (data_bytes == 0) { |
| 751 | // Data fits into entry |
| 752 | memcpy(entry->data.value, data, |
Eino-Ville Talvala | 3154036 | 2012-11-07 16:36:50 -0800 | [diff] [blame] | 753 | data_payload_bytes); |
Eino-Ville Talvala | f5fb8a5 | 2012-05-10 14:22:28 -0700 | [diff] [blame] | 754 | } |
| 755 | |
| 756 | entry->count = data_count; |
| 757 | |
| 758 | if (updated_entry != NULL) { |
| 759 | get_camera_metadata_entry(dst, |
| 760 | index, |
| 761 | updated_entry); |
| 762 | } |
| 763 | |
Alex Ray | 151389f | 2013-11-12 18:09:31 -0800 | [diff] [blame^] | 764 | assert(validate_camera_metadata_structure(dst, NULL) == OK); |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 765 | return OK; |
| 766 | } |
| 767 | |
Eino-Ville Talvala | 98d02fd | 2012-05-21 14:46:49 -0700 | [diff] [blame] | 768 | int set_camera_metadata_user_pointer(camera_metadata_t *dst, void* user) { |
| 769 | if (dst == NULL) return ERROR; |
| 770 | dst->user = user; |
| 771 | return OK; |
| 772 | } |
| 773 | |
| 774 | int get_camera_metadata_user_pointer(camera_metadata_t *dst, void** user) { |
| 775 | if (dst == NULL) return ERROR; |
| 776 | *user = dst->user; |
| 777 | return OK; |
| 778 | } |
| 779 | |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 780 | static const vendor_tag_query_ops_t *vendor_tag_ops = NULL; |
| 781 | |
| 782 | const char *get_camera_metadata_section_name(uint32_t tag) { |
| 783 | uint32_t tag_section = tag >> 16; |
| 784 | if (tag_section >= VENDOR_SECTION && vendor_tag_ops != NULL) { |
Eino-Ville Talvala | 94c1901 | 2012-04-04 15:30:06 -0700 | [diff] [blame] | 785 | return vendor_tag_ops->get_camera_vendor_section_name( |
| 786 | vendor_tag_ops, |
| 787 | tag); |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 788 | } |
| 789 | if (tag_section >= ANDROID_SECTION_COUNT) { |
| 790 | return NULL; |
| 791 | } |
| 792 | return camera_metadata_section_names[tag_section]; |
| 793 | } |
| 794 | |
| 795 | const char *get_camera_metadata_tag_name(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_name( |
| 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 NULL; |
| 805 | } |
| 806 | uint32_t tag_index = tag & 0xFFFF; |
| 807 | return tag_info[tag_section][tag_index].tag_name; |
| 808 | } |
| 809 | |
| 810 | int get_camera_metadata_tag_type(uint32_t tag) { |
| 811 | uint32_t tag_section = tag >> 16; |
| 812 | if (tag_section >= VENDOR_SECTION && vendor_tag_ops != NULL) { |
Eino-Ville Talvala | 94c1901 | 2012-04-04 15:30:06 -0700 | [diff] [blame] | 813 | return vendor_tag_ops->get_camera_vendor_tag_type( |
| 814 | vendor_tag_ops, |
| 815 | tag); |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 816 | } |
| 817 | if (tag_section >= ANDROID_SECTION_COUNT || |
| 818 | tag >= camera_metadata_section_bounds[tag_section][1] ) { |
| 819 | return -1; |
| 820 | } |
| 821 | uint32_t tag_index = tag & 0xFFFF; |
| 822 | return tag_info[tag_section][tag_index].tag_type; |
| 823 | } |
| 824 | |
| 825 | int set_camera_metadata_vendor_tag_ops(const vendor_tag_query_ops_t *query_ops) { |
| 826 | vendor_tag_ops = query_ops; |
| 827 | return OK; |
| 828 | } |
| 829 | |
Igor Murashkin | 375cfd3 | 2012-12-03 13:55:33 -0800 | [diff] [blame] | 830 | static void print_data(int fd, const uint8_t *data_ptr, uint32_t tag, int type, |
| 831 | int count, |
Eino-Ville Talvala | 1d27e5b | 2012-07-30 10:46:22 -0700 | [diff] [blame] | 832 | int indentation); |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 833 | |
Eino-Ville Talvala | 94c1901 | 2012-04-04 15:30:06 -0700 | [diff] [blame] | 834 | void dump_camera_metadata(const camera_metadata_t *metadata, |
| 835 | int fd, |
| 836 | int verbosity) { |
Eino-Ville Talvala | 1d27e5b | 2012-07-30 10:46:22 -0700 | [diff] [blame] | 837 | dump_indented_camera_metadata(metadata, fd, verbosity, 0); |
| 838 | } |
| 839 | |
| 840 | void dump_indented_camera_metadata(const camera_metadata_t *metadata, |
| 841 | int fd, |
| 842 | int verbosity, |
| 843 | int indentation) { |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 844 | if (metadata == NULL) { |
Eino-Ville Talvala | 94879bd | 2012-10-01 16:33:03 -0700 | [diff] [blame] | 845 | fdprintf(fd, "%*sDumping camera metadata array: Not allocated\n", |
Eino-Ville Talvala | 2f4aca6 | 2012-08-24 11:42:06 -0700 | [diff] [blame] | 846 | indentation, ""); |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 847 | return; |
| 848 | } |
| 849 | unsigned int i; |
Eino-Ville Talvala | 94c1901 | 2012-04-04 15:30:06 -0700 | [diff] [blame] | 850 | fdprintf(fd, |
Eino-Ville Talvala | 2f4aca6 | 2012-08-24 11:42:06 -0700 | [diff] [blame] | 851 | "%*sDumping camera metadata array: %d / %d entries, " |
Eino-Ville Talvala | 1d27e5b | 2012-07-30 10:46:22 -0700 | [diff] [blame] | 852 | "%d / %d bytes of extra data.\n", indentation, "", |
| 853 | metadata->entry_count, metadata->entry_capacity, |
| 854 | metadata->data_count, metadata->data_capacity); |
| 855 | fdprintf(fd, "%*sVersion: %d, Flags: %08x\n", |
| 856 | indentation + 2, "", |
Eino-Ville Talvala | 94c1901 | 2012-04-04 15:30:06 -0700 | [diff] [blame] | 857 | metadata->version, metadata->flags); |
Eino-Ville Talvala | b10d56a | 2012-11-13 11:45:12 -0800 | [diff] [blame] | 858 | camera_metadata_buffer_entry_t *entry = get_entries(metadata); |
| 859 | for (i=0; i < metadata->entry_count; i++, entry++) { |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 860 | |
| 861 | const char *tag_name, *tag_section; |
| 862 | tag_section = get_camera_metadata_section_name(entry->tag); |
| 863 | if (tag_section == NULL) { |
| 864 | tag_section = "unknownSection"; |
| 865 | } |
| 866 | tag_name = get_camera_metadata_tag_name(entry->tag); |
| 867 | if (tag_name == NULL) { |
| 868 | tag_name = "unknownTag"; |
| 869 | } |
| 870 | const char *type_name; |
| 871 | if (entry->type >= NUM_TYPES) { |
| 872 | type_name = "unknown"; |
| 873 | } else { |
| 874 | type_name = camera_metadata_type_names[entry->type]; |
| 875 | } |
Eino-Ville Talvala | 1d27e5b | 2012-07-30 10:46:22 -0700 | [diff] [blame] | 876 | fdprintf(fd, "%*s%s.%s (%05x): %s[%d]\n", |
| 877 | indentation + 2, "", |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 878 | tag_section, |
| 879 | tag_name, |
| 880 | entry->tag, |
| 881 | type_name, |
| 882 | entry->count); |
| 883 | |
| 884 | if (verbosity < 1) continue; |
| 885 | |
| 886 | if (entry->type >= NUM_TYPES) continue; |
| 887 | |
| 888 | size_t type_size = camera_metadata_type_size[entry->type]; |
| 889 | uint8_t *data_ptr; |
| 890 | if ( type_size * entry->count > 4 ) { |
| 891 | if (entry->data.offset >= metadata->data_count) { |
Eino-Ville Talvala | 94c1901 | 2012-04-04 15:30:06 -0700 | [diff] [blame] | 892 | ALOGE("%s: Malformed entry data offset: %d (max %d)", |
| 893 | __FUNCTION__, |
| 894 | entry->data.offset, |
| 895 | metadata->data_count); |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 896 | continue; |
| 897 | } |
Eino-Ville Talvala | b10d56a | 2012-11-13 11:45:12 -0800 | [diff] [blame] | 898 | data_ptr = get_data(metadata) + entry->data.offset; |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 899 | } else { |
| 900 | data_ptr = entry->data.value; |
| 901 | } |
| 902 | int count = entry->count; |
| 903 | if (verbosity < 2 && count > 16) count = 16; |
| 904 | |
Igor Murashkin | 375cfd3 | 2012-12-03 13:55:33 -0800 | [diff] [blame] | 905 | print_data(fd, data_ptr, entry->tag, entry->type, count, indentation); |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 906 | } |
| 907 | } |
| 908 | |
Igor Murashkin | 375cfd3 | 2012-12-03 13:55:33 -0800 | [diff] [blame] | 909 | 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] | 910 | int type, int count, int indentation) { |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 911 | static int values_per_line[NUM_TYPES] = { |
| 912 | [TYPE_BYTE] = 16, |
| 913 | [TYPE_INT32] = 4, |
| 914 | [TYPE_FLOAT] = 8, |
| 915 | [TYPE_INT64] = 2, |
| 916 | [TYPE_DOUBLE] = 4, |
| 917 | [TYPE_RATIONAL] = 2, |
| 918 | }; |
| 919 | size_t type_size = camera_metadata_type_size[type]; |
Igor Murashkin | 375cfd3 | 2012-12-03 13:55:33 -0800 | [diff] [blame] | 920 | char value_string_tmp[CAMERA_METADATA_ENUM_STRING_MAX_SIZE]; |
| 921 | uint32_t value; |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 922 | |
| 923 | int lines = count / values_per_line[type]; |
| 924 | if (count % values_per_line[type] != 0) lines++; |
| 925 | |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 926 | int index = 0; |
| 927 | int j, k; |
| 928 | for (j = 0; j < lines; j++) { |
Eino-Ville Talvala | 1d27e5b | 2012-07-30 10:46:22 -0700 | [diff] [blame] | 929 | fdprintf(fd, "%*s[", indentation + 4, ""); |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 930 | for (k = 0; |
| 931 | k < values_per_line[type] && count > 0; |
| 932 | k++, count--, index += type_size) { |
| 933 | |
| 934 | switch (type) { |
| 935 | case TYPE_BYTE: |
Igor Murashkin | 375cfd3 | 2012-12-03 13:55:33 -0800 | [diff] [blame] | 936 | value = *(data_ptr + index); |
| 937 | if (camera_metadata_enum_snprint(tag, |
| 938 | value, |
| 939 | value_string_tmp, |
| 940 | sizeof(value_string_tmp)) |
| 941 | == OK) { |
| 942 | fdprintf(fd, "%s ", value_string_tmp); |
| 943 | } else { |
| 944 | fdprintf(fd, "%hhu ", |
| 945 | *(data_ptr + index)); |
| 946 | } |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 947 | break; |
| 948 | case TYPE_INT32: |
Igor Murashkin | 375cfd3 | 2012-12-03 13:55:33 -0800 | [diff] [blame] | 949 | value = |
| 950 | *(int32_t*)(data_ptr + index); |
| 951 | if (camera_metadata_enum_snprint(tag, |
| 952 | value, |
| 953 | value_string_tmp, |
| 954 | sizeof(value_string_tmp)) |
| 955 | == OK) { |
| 956 | fdprintf(fd, "%s ", value_string_tmp); |
| 957 | } else { |
| 958 | fdprintf(fd, "%d ", |
| 959 | *(int32_t*)(data_ptr + index)); |
| 960 | } |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 961 | break; |
| 962 | case TYPE_FLOAT: |
Eino-Ville Talvala | 94c1901 | 2012-04-04 15:30:06 -0700 | [diff] [blame] | 963 | fdprintf(fd, "%0.2f ", |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 964 | *(float*)(data_ptr + index)); |
| 965 | break; |
| 966 | case TYPE_INT64: |
Eino-Ville Talvala | 94c1901 | 2012-04-04 15:30:06 -0700 | [diff] [blame] | 967 | fdprintf(fd, "%lld ", |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 968 | *(int64_t*)(data_ptr + index)); |
| 969 | break; |
| 970 | case TYPE_DOUBLE: |
Eino-Ville Talvala | 94c1901 | 2012-04-04 15:30:06 -0700 | [diff] [blame] | 971 | fdprintf(fd, "%0.2f ", |
Eino-Ville Talvala | 3154036 | 2012-11-07 16:36:50 -0800 | [diff] [blame] | 972 | *(double*)(data_ptr + index)); |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 973 | break; |
| 974 | case TYPE_RATIONAL: { |
| 975 | int32_t numerator = *(int32_t*)(data_ptr + index); |
| 976 | int32_t denominator = *(int32_t*)(data_ptr + index + 4); |
Eino-Ville Talvala | 94c1901 | 2012-04-04 15:30:06 -0700 | [diff] [blame] | 977 | fdprintf(fd, "(%d / %d) ", |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 978 | numerator, denominator); |
| 979 | break; |
| 980 | } |
| 981 | default: |
Eino-Ville Talvala | 94c1901 | 2012-04-04 15:30:06 -0700 | [diff] [blame] | 982 | fdprintf(fd, "??? "); |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 983 | } |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 984 | } |
Eino-Ville Talvala | 94c1901 | 2012-04-04 15:30:06 -0700 | [diff] [blame] | 985 | fdprintf(fd, "]\n"); |
Eino-Ville Talvala | d8afb4d | 2012-02-10 14:27:08 -0800 | [diff] [blame] | 986 | } |
| 987 | } |