Camera: default implementation of device 3.2
Test: compile
Bug: 30985004
Change-Id: Ibb48673840de6a5f7c75dc6993d5457a272177a2
diff --git a/camera/common/1.0/default/CameraMetadata.cpp b/camera/common/1.0/default/CameraMetadata.cpp
new file mode 100644
index 0000000..44c2040
--- /dev/null
+++ b/camera/common/1.0/default/CameraMetadata.cpp
@@ -0,0 +1,568 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+// #define LOG_NDEBUG 0
+
+#define LOG_TAG "CamComm1.0-MD"
+#include <utils/Log.h>
+#include <utils/Errors.h>
+
+#include "CameraMetadata.h"
+#include "VendorTagDescriptor.h"
+
+namespace android {
+namespace hardware {
+namespace camera {
+namespace common {
+namespace V1_0 {
+namespace helper {
+
+#define ALIGN_TO(val, alignment) \
+ (((uintptr_t)(val) + ((alignment) - 1)) & ~((alignment) - 1))
+
+CameraMetadata::CameraMetadata() :
+ mBuffer(NULL), mLocked(false) {
+}
+
+CameraMetadata::CameraMetadata(size_t entryCapacity, size_t dataCapacity) :
+ mLocked(false)
+{
+ mBuffer = allocate_camera_metadata(entryCapacity, dataCapacity);
+}
+
+CameraMetadata::CameraMetadata(const CameraMetadata &other) :
+ mLocked(false) {
+ mBuffer = clone_camera_metadata(other.mBuffer);
+}
+
+CameraMetadata::CameraMetadata(camera_metadata_t *buffer) :
+ mBuffer(NULL), mLocked(false) {
+ acquire(buffer);
+}
+
+CameraMetadata &CameraMetadata::operator=(const CameraMetadata &other) {
+ return operator=(other.mBuffer);
+}
+
+CameraMetadata &CameraMetadata::operator=(const camera_metadata_t *buffer) {
+ if (mLocked) {
+ ALOGE("%s: Assignment to a locked CameraMetadata!", __FUNCTION__);
+ return *this;
+ }
+
+ if (CC_LIKELY(buffer != mBuffer)) {
+ camera_metadata_t *newBuffer = clone_camera_metadata(buffer);
+ clear();
+ mBuffer = newBuffer;
+ }
+ return *this;
+}
+
+CameraMetadata::~CameraMetadata() {
+ mLocked = false;
+ clear();
+}
+
+const camera_metadata_t* CameraMetadata::getAndLock() const {
+ mLocked = true;
+ return mBuffer;
+}
+
+status_t CameraMetadata::unlock(const camera_metadata_t *buffer) const {
+ if (!mLocked) {
+ ALOGE("%s: Can't unlock a non-locked CameraMetadata!", __FUNCTION__);
+ return INVALID_OPERATION;
+ }
+ if (buffer != mBuffer) {
+ ALOGE("%s: Can't unlock CameraMetadata with wrong pointer!",
+ __FUNCTION__);
+ return BAD_VALUE;
+ }
+ mLocked = false;
+ return OK;
+}
+
+camera_metadata_t* CameraMetadata::release() {
+ if (mLocked) {
+ ALOGE("%s: CameraMetadata is locked", __FUNCTION__);
+ return NULL;
+ }
+ camera_metadata_t *released = mBuffer;
+ mBuffer = NULL;
+ return released;
+}
+
+void CameraMetadata::clear() {
+ if (mLocked) {
+ ALOGE("%s: CameraMetadata is locked", __FUNCTION__);
+ return;
+ }
+ if (mBuffer) {
+ free_camera_metadata(mBuffer);
+ mBuffer = NULL;
+ }
+}
+
+void CameraMetadata::acquire(camera_metadata_t *buffer) {
+ if (mLocked) {
+ ALOGE("%s: CameraMetadata is locked", __FUNCTION__);
+ return;
+ }
+ clear();
+ mBuffer = buffer;
+
+ ALOGE_IF(validate_camera_metadata_structure(mBuffer, /*size*/NULL) != OK,
+ "%s: Failed to validate metadata structure %p",
+ __FUNCTION__, buffer);
+}
+
+void CameraMetadata::acquire(CameraMetadata &other) {
+ if (mLocked) {
+ ALOGE("%s: CameraMetadata is locked", __FUNCTION__);
+ return;
+ }
+ acquire(other.release());
+}
+
+status_t CameraMetadata::append(const CameraMetadata &other) {
+ return append(other.mBuffer);
+}
+
+status_t CameraMetadata::append(const camera_metadata_t* other) {
+ if (mLocked) {
+ ALOGE("%s: CameraMetadata is locked", __FUNCTION__);
+ return INVALID_OPERATION;
+ }
+ size_t extraEntries = get_camera_metadata_entry_count(other);
+ size_t extraData = get_camera_metadata_data_count(other);
+ resizeIfNeeded(extraEntries, extraData);
+
+ return append_camera_metadata(mBuffer, other);
+}
+
+size_t CameraMetadata::entryCount() const {
+ return (mBuffer == NULL) ? 0 :
+ get_camera_metadata_entry_count(mBuffer);
+}
+
+bool CameraMetadata::isEmpty() const {
+ return entryCount() == 0;
+}
+
+status_t CameraMetadata::sort() {
+ if (mLocked) {
+ ALOGE("%s: CameraMetadata is locked", __FUNCTION__);
+ return INVALID_OPERATION;
+ }
+ return sort_camera_metadata(mBuffer);
+}
+
+status_t CameraMetadata::checkType(uint32_t tag, uint8_t expectedType) {
+ int tagType = get_camera_metadata_tag_type(tag);
+ if ( CC_UNLIKELY(tagType == -1)) {
+ ALOGE("Update metadata entry: Unknown tag %d", tag);
+ return INVALID_OPERATION;
+ }
+ if ( CC_UNLIKELY(tagType != expectedType) ) {
+ ALOGE("Mismatched tag type when updating entry %s (%d) of type %s; "
+ "got type %s data instead ",
+ get_camera_metadata_tag_name(tag), tag,
+ camera_metadata_type_names[tagType],
+ camera_metadata_type_names[expectedType]);
+ return INVALID_OPERATION;
+ }
+ return OK;
+}
+
+status_t CameraMetadata::update(uint32_t tag,
+ const int32_t *data, size_t data_count) {
+ status_t res;
+ if (mLocked) {
+ ALOGE("%s: CameraMetadata is locked", __FUNCTION__);
+ return INVALID_OPERATION;
+ }
+ if ( (res = checkType(tag, TYPE_INT32)) != OK) {
+ return res;
+ }
+ return updateImpl(tag, (const void*)data, data_count);
+}
+
+status_t CameraMetadata::update(uint32_t tag,
+ const uint8_t *data, size_t data_count) {
+ status_t res;
+ if (mLocked) {
+ ALOGE("%s: CameraMetadata is locked", __FUNCTION__);
+ return INVALID_OPERATION;
+ }
+ if ( (res = checkType(tag, TYPE_BYTE)) != OK) {
+ return res;
+ }
+ return updateImpl(tag, (const void*)data, data_count);
+}
+
+status_t CameraMetadata::update(uint32_t tag,
+ const float *data, size_t data_count) {
+ status_t res;
+ if (mLocked) {
+ ALOGE("%s: CameraMetadata is locked", __FUNCTION__);
+ return INVALID_OPERATION;
+ }
+ if ( (res = checkType(tag, TYPE_FLOAT)) != OK) {
+ return res;
+ }
+ return updateImpl(tag, (const void*)data, data_count);
+}
+
+status_t CameraMetadata::update(uint32_t tag,
+ const int64_t *data, size_t data_count) {
+ status_t res;
+ if (mLocked) {
+ ALOGE("%s: CameraMetadata is locked", __FUNCTION__);
+ return INVALID_OPERATION;
+ }
+ if ( (res = checkType(tag, TYPE_INT64)) != OK) {
+ return res;
+ }
+ return updateImpl(tag, (const void*)data, data_count);
+}
+
+status_t CameraMetadata::update(uint32_t tag,
+ const double *data, size_t data_count) {
+ status_t res;
+ if (mLocked) {
+ ALOGE("%s: CameraMetadata is locked", __FUNCTION__);
+ return INVALID_OPERATION;
+ }
+ if ( (res = checkType(tag, TYPE_DOUBLE)) != OK) {
+ return res;
+ }
+ return updateImpl(tag, (const void*)data, data_count);
+}
+
+status_t CameraMetadata::update(uint32_t tag,
+ const camera_metadata_rational_t *data, size_t data_count) {
+ status_t res;
+ if (mLocked) {
+ ALOGE("%s: CameraMetadata is locked", __FUNCTION__);
+ return INVALID_OPERATION;
+ }
+ if ( (res = checkType(tag, TYPE_RATIONAL)) != OK) {
+ return res;
+ }
+ return updateImpl(tag, (const void*)data, data_count);
+}
+
+status_t CameraMetadata::update(uint32_t tag,
+ const String8 &string) {
+ status_t res;
+ if (mLocked) {
+ ALOGE("%s: CameraMetadata is locked", __FUNCTION__);
+ return INVALID_OPERATION;
+ }
+ if ( (res = checkType(tag, TYPE_BYTE)) != OK) {
+ return res;
+ }
+ // string.size() doesn't count the null termination character.
+ return updateImpl(tag, (const void*)string.string(), string.size() + 1);
+}
+
+status_t CameraMetadata::update(const camera_metadata_ro_entry &entry) {
+ status_t res;
+ if (mLocked) {
+ ALOGE("%s: CameraMetadata is locked", __FUNCTION__);
+ return INVALID_OPERATION;
+ }
+ if ( (res = checkType(entry.tag, entry.type)) != OK) {
+ return res;
+ }
+ return updateImpl(entry.tag, (const void*)entry.data.u8, entry.count);
+}
+
+status_t CameraMetadata::updateImpl(uint32_t tag, const void *data,
+ size_t data_count) {
+ status_t res;
+ if (mLocked) {
+ ALOGE("%s: CameraMetadata is locked", __FUNCTION__);
+ return INVALID_OPERATION;
+ }
+ int type = get_camera_metadata_tag_type(tag);
+ if (type == -1) {
+ ALOGE("%s: Tag %d not found", __FUNCTION__, tag);
+ return BAD_VALUE;
+ }
+ // Safety check - ensure that data isn't pointing to this metadata, since
+ // that would get invalidated if a resize is needed
+ size_t bufferSize = get_camera_metadata_size(mBuffer);
+ uintptr_t bufAddr = reinterpret_cast<uintptr_t>(mBuffer);
+ uintptr_t dataAddr = reinterpret_cast<uintptr_t>(data);
+ if (dataAddr > bufAddr && dataAddr < (bufAddr + bufferSize)) {
+ ALOGE("%s: Update attempted with data from the same metadata buffer!",
+ __FUNCTION__);
+ return INVALID_OPERATION;
+ }
+
+ size_t data_size = calculate_camera_metadata_entry_data_size(type,
+ data_count);
+
+ res = resizeIfNeeded(1, data_size);
+
+ if (res == OK) {
+ camera_metadata_entry_t entry;
+ res = find_camera_metadata_entry(mBuffer, tag, &entry);
+ if (res == NAME_NOT_FOUND) {
+ res = add_camera_metadata_entry(mBuffer,
+ tag, data, data_count);
+ } else if (res == OK) {
+ res = update_camera_metadata_entry(mBuffer,
+ entry.index, data, data_count, NULL);
+ }
+ }
+
+ if (res != OK) {
+ ALOGE("%s: Unable to update metadata entry %s.%s (%x): %s (%d)",
+ __FUNCTION__, get_camera_metadata_section_name(tag),
+ get_camera_metadata_tag_name(tag), tag, strerror(-res), res);
+ }
+
+ IF_ALOGV() {
+ ALOGE_IF(validate_camera_metadata_structure(mBuffer, /*size*/NULL) !=
+ OK,
+
+ "%s: Failed to validate metadata structure after update %p",
+ __FUNCTION__, mBuffer);
+ }
+
+ return res;
+}
+
+bool CameraMetadata::exists(uint32_t tag) const {
+ camera_metadata_ro_entry entry;
+ return find_camera_metadata_ro_entry(mBuffer, tag, &entry) == 0;
+}
+
+camera_metadata_entry_t CameraMetadata::find(uint32_t tag) {
+ status_t res;
+ camera_metadata_entry entry;
+ if (mLocked) {
+ ALOGE("%s: CameraMetadata is locked", __FUNCTION__);
+ entry.count = 0;
+ return entry;
+ }
+ res = find_camera_metadata_entry(mBuffer, tag, &entry);
+ if (CC_UNLIKELY( res != OK )) {
+ entry.count = 0;
+ entry.data.u8 = NULL;
+ }
+ return entry;
+}
+
+camera_metadata_ro_entry_t CameraMetadata::find(uint32_t tag) const {
+ status_t res;
+ camera_metadata_ro_entry entry;
+ res = find_camera_metadata_ro_entry(mBuffer, tag, &entry);
+ if (CC_UNLIKELY( res != OK )) {
+ entry.count = 0;
+ entry.data.u8 = NULL;
+ }
+ return entry;
+}
+
+status_t CameraMetadata::erase(uint32_t tag) {
+ camera_metadata_entry_t entry;
+ status_t res;
+ if (mLocked) {
+ ALOGE("%s: CameraMetadata is locked", __FUNCTION__);
+ return INVALID_OPERATION;
+ }
+ res = find_camera_metadata_entry(mBuffer, tag, &entry);
+ if (res == NAME_NOT_FOUND) {
+ return OK;
+ } else if (res != OK) {
+ ALOGE("%s: Error looking for entry %s.%s (%x): %s %d",
+ __FUNCTION__,
+ get_camera_metadata_section_name(tag),
+ get_camera_metadata_tag_name(tag), tag, strerror(-res), res);
+ return res;
+ }
+ res = delete_camera_metadata_entry(mBuffer, entry.index);
+ if (res != OK) {
+ ALOGE("%s: Error deleting entry %s.%s (%x): %s %d",
+ __FUNCTION__,
+ get_camera_metadata_section_name(tag),
+ get_camera_metadata_tag_name(tag), tag, strerror(-res), res);
+ }
+ return res;
+}
+
+void CameraMetadata::dump(int fd, int verbosity, int indentation) const {
+ dump_indented_camera_metadata(mBuffer, fd, verbosity, indentation);
+}
+
+status_t CameraMetadata::resizeIfNeeded(size_t extraEntries, size_t extraData) {
+ if (mBuffer == NULL) {
+ mBuffer = allocate_camera_metadata(extraEntries * 2, extraData * 2);
+ if (mBuffer == NULL) {
+ ALOGE("%s: Can't allocate larger metadata buffer", __FUNCTION__);
+ return NO_MEMORY;
+ }
+ } else {
+ size_t currentEntryCount = get_camera_metadata_entry_count(mBuffer);
+ size_t currentEntryCap = get_camera_metadata_entry_capacity(mBuffer);
+ size_t newEntryCount = currentEntryCount +
+ extraEntries;
+ newEntryCount = (newEntryCount > currentEntryCap) ?
+ newEntryCount * 2 : currentEntryCap;
+
+ size_t currentDataCount = get_camera_metadata_data_count(mBuffer);
+ size_t currentDataCap = get_camera_metadata_data_capacity(mBuffer);
+ size_t newDataCount = currentDataCount +
+ extraData;
+ newDataCount = (newDataCount > currentDataCap) ?
+ newDataCount * 2 : currentDataCap;
+
+ if (newEntryCount > currentEntryCap ||
+ newDataCount > currentDataCap) {
+ camera_metadata_t *oldBuffer = mBuffer;
+ mBuffer = allocate_camera_metadata(newEntryCount,
+ newDataCount);
+ if (mBuffer == NULL) {
+ ALOGE("%s: Can't allocate larger metadata buffer", __FUNCTION__);
+ return NO_MEMORY;
+ }
+ append_camera_metadata(mBuffer, oldBuffer);
+ free_camera_metadata(oldBuffer);
+ }
+ }
+ return OK;
+}
+
+void CameraMetadata::swap(CameraMetadata& other) {
+ if (mLocked) {
+ ALOGE("%s: CameraMetadata is locked", __FUNCTION__);
+ return;
+ } else if (other.mLocked) {
+ ALOGE("%s: Other CameraMetadata is locked", __FUNCTION__);
+ return;
+ }
+
+ camera_metadata* thisBuf = mBuffer;
+ camera_metadata* otherBuf = other.mBuffer;
+
+ other.mBuffer = thisBuf;
+ mBuffer = otherBuf;
+}
+
+status_t CameraMetadata::getTagFromName(const char *name,
+ const VendorTagDescriptor* vTags, uint32_t *tag) {
+
+ if (name == nullptr || tag == nullptr) return BAD_VALUE;
+
+ size_t nameLength = strlen(name);
+
+ const SortedVector<String8> *vendorSections;
+ size_t vendorSectionCount = 0;
+
+ if (vTags != NULL) {
+ vendorSections = vTags->getAllSectionNames();
+ vendorSectionCount = vendorSections->size();
+ }
+
+ // First, find the section by the longest string match
+ const char *section = NULL;
+ size_t sectionIndex = 0;
+ size_t sectionLength = 0;
+ size_t totalSectionCount = ANDROID_SECTION_COUNT + vendorSectionCount;
+ for (size_t i = 0; i < totalSectionCount; ++i) {
+
+ const char *str = (i < ANDROID_SECTION_COUNT) ? camera_metadata_section_names[i] :
+ (*vendorSections)[i - ANDROID_SECTION_COUNT].string();
+
+ ALOGV("%s: Trying to match against section '%s'", __FUNCTION__, str);
+
+ if (strstr(name, str) == name) { // name begins with the section name
+ size_t strLength = strlen(str);
+
+ ALOGV("%s: Name begins with section name", __FUNCTION__);
+
+ // section name is the longest we've found so far
+ if (section == NULL || sectionLength < strLength) {
+ section = str;
+ sectionIndex = i;
+ sectionLength = strLength;
+
+ ALOGV("%s: Found new best section (%s)", __FUNCTION__, section);
+ }
+ }
+ }
+
+ // TODO: Make above get_camera_metadata_section_from_name ?
+
+ if (section == NULL) {
+ return NAME_NOT_FOUND;
+ } else {
+ ALOGV("%s: Found matched section '%s' (%zu)",
+ __FUNCTION__, section, sectionIndex);
+ }
+
+ // Get the tag name component of the name
+ const char *nameTagName = name + sectionLength + 1; // x.y.z -> z
+ if (sectionLength + 1 >= nameLength) {
+ return BAD_VALUE;
+ }
+
+ // Match rest of name against the tag names in that section only
+ uint32_t candidateTag = 0;
+ if (sectionIndex < ANDROID_SECTION_COUNT) {
+ // Match built-in tags (typically android.*)
+ uint32_t tagBegin, tagEnd; // [tagBegin, tagEnd)
+ tagBegin = camera_metadata_section_bounds[sectionIndex][0];
+ tagEnd = camera_metadata_section_bounds[sectionIndex][1];
+
+ for (candidateTag = tagBegin; candidateTag < tagEnd; ++candidateTag) {
+ const char *tagName = get_camera_metadata_tag_name(candidateTag);
+
+ if (strcmp(nameTagName, tagName) == 0) {
+ ALOGV("%s: Found matched tag '%s' (%d)",
+ __FUNCTION__, tagName, candidateTag);
+ break;
+ }
+ }
+
+ if (candidateTag == tagEnd) {
+ return NAME_NOT_FOUND;
+ }
+ } else if (vTags != NULL) {
+ // Match vendor tags (typically com.*)
+ const String8 sectionName(section);
+ const String8 tagName(nameTagName);
+
+ status_t res = OK;
+ if ((res = vTags->lookupTag(tagName, sectionName, &candidateTag)) != OK) {
+ return NAME_NOT_FOUND;
+ }
+ }
+
+ *tag = candidateTag;
+ return OK;
+}
+
+
+} // namespace helper
+} // namespace V1_0
+} // namespace common
+} // namespace camera
+} // namespace hardware
+} // namespace android