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Diffstat (limited to 'media/img_utils/src/TiffEntry.cpp')
-rw-r--r-- | media/img_utils/src/TiffEntry.cpp | 238 |
1 files changed, 238 insertions, 0 deletions
diff --git a/media/img_utils/src/TiffEntry.cpp b/media/img_utils/src/TiffEntry.cpp new file mode 100644 index 0000000..e028827 --- /dev/null +++ b/media/img_utils/src/TiffEntry.cpp @@ -0,0 +1,238 @@ +/* + * Copyright 2014 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. + */ + +#include <img_utils/TiffIfd.h> +#include <img_utils/TiffHelpers.h> +#include <img_utils/TiffEntry.h> + +#include <utils/Errors.h> +#include <utils/StrongPointer.h> +#include <utils/Vector.h> + +namespace android { +namespace img_utils { + +TiffEntry::~TiffEntry() {} + +/** + * Specialize for each valid type, including sub-IFDs. + * + * Values with types other than the ones given here should not compile. + */ +template<> +const Vector<sp<TiffIfd> >* TiffEntry::forceValidType<Vector<sp<TiffIfd> > >(TagType type, + const Vector<sp<TiffIfd> >* value) { + if (type == LONG) { + return value; + } + ALOGE("%s: Value of type 'ifd vector' is not valid for tag with TIFF type %d.", + __FUNCTION__, type); + return NULL; +} + +template<> +const sp<TiffIfd>* TiffEntry::forceValidType<sp<TiffIfd> >(TagType type, const sp<TiffIfd>* value) { + if (type == LONG) { + return value; + } + ALOGE("%s: Value of type 'ifd' is not valid for tag with TIFF type %d.", + __FUNCTION__, type); + return NULL; +} + +template<> +const uint8_t* TiffEntry::forceValidType<uint8_t>(TagType type, const uint8_t* value) { + if (type == BYTE || type == ASCII || type == UNDEFINED) { + return value; + } + ALOGE("%s: Value of type 'uint8_t' is not valid for tag with TIFF type %d.", + __FUNCTION__, type); + return NULL; +} + +template<> +const int8_t* TiffEntry::forceValidType<int8_t>(TagType type, const int8_t* value) { + if (type == SBYTE || type == ASCII || type == UNDEFINED) { + return value; + } + ALOGE("%s: Value of type 'int8_t' is not valid for tag with TIFF type %d.", + __FUNCTION__, type); + return NULL; +} + +template<> +const uint16_t* TiffEntry::forceValidType<uint16_t>(TagType type, const uint16_t* value) { + if (type == SHORT) { + return value; + } + ALOGE("%s: Value of type 'uint16_t' is not valid for tag with TIFF type %d.", + __FUNCTION__, type); + return NULL; +} + +template<> +const int16_t* TiffEntry::forceValidType<int16_t>(TagType type, const int16_t* value) { + if (type == SSHORT) { + return value; + } + ALOGE("%s: Value of type 'int16_t' is not valid for tag with TIFF type %d.", + __FUNCTION__, type); + return NULL; +} + +template<> +const uint32_t* TiffEntry::forceValidType<uint32_t>(TagType type, const uint32_t* value) { + if (type == LONG || type == RATIONAL) { + return value; + } + ALOGE("%s: Value of type 'uint32_t' is not valid for tag with TIFF type %d.", + __FUNCTION__, type); + return NULL; +} + +template<> +const int32_t* TiffEntry::forceValidType<int32_t>(TagType type, const int32_t* value) { + if (type == SLONG || type == SRATIONAL) { + return value; + } + ALOGE("%s: Value of type 'int32_t' is not valid for tag with TIFF type %d.", + __FUNCTION__, type); + return NULL; +} + +template<> +const double* TiffEntry::forceValidType<double>(TagType type, const double* value) { + if (type == DOUBLE) { + return value; + } + ALOGE("%s: Value of type 'double' is not valid for tag with TIFF type %d.", + __FUNCTION__, type); + return NULL; +} + +template<> +const float* TiffEntry::forceValidType<float>(TagType type, const float* value) { + if (type == FLOAT) { + return value; + } + ALOGE("%s: Value of type 'float' is not valid for tag with TIFF type %d.", + __FUNCTION__, type); + return NULL; +} + +String8 TiffEntry::toString() const { + String8 output; + uint32_t count = getCount(); + output.appendFormat("[id: %x, type: %d, count: %u, value: '", getTag(), getType(), count); + + size_t cappedCount = count; + if (count > MAX_PRINT_STRING_LENGTH) { + cappedCount = MAX_PRINT_STRING_LENGTH; + } + + TagType type = getType(); + switch (type) { + case UNDEFINED: + case BYTE: { + const uint8_t* typed_data = getData<uint8_t>(); + for (size_t i = 0; i < cappedCount; ++i) { + output.appendFormat("%u ", typed_data[i]); + } + break; + } + case ASCII: { + const char* typed_data = reinterpret_cast<const char*>(getData<uint8_t>()); + size_t len = count; + if (count > MAX_PRINT_STRING_LENGTH) { + len = MAX_PRINT_STRING_LENGTH; + } + output.append(typed_data, len); + break; + } + case SHORT: { + const uint16_t* typed_data = getData<uint16_t>(); + for (size_t i = 0; i < cappedCount; ++i) { + output.appendFormat("%u ", typed_data[i]); + } + break; + } + case LONG: { + const uint32_t* typed_data = getData<uint32_t>(); + for (size_t i = 0; i < cappedCount; ++i) { + output.appendFormat("%u ", typed_data[i]); + } + break; + } + case RATIONAL: { + const uint32_t* typed_data = getData<uint32_t>(); + cappedCount <<= 1; + for (size_t i = 0; i < cappedCount; i+=2) { + output.appendFormat("%u/%u ", typed_data[i], typed_data[i + 1]); + } + break; + } + case SBYTE: { + const int8_t* typed_data = getData<int8_t>(); + for (size_t i = 0; i < cappedCount; ++i) { + output.appendFormat("%d ", typed_data[i]); + } + break; + } + case SSHORT: { + const int16_t* typed_data = getData<int16_t>(); + for (size_t i = 0; i < cappedCount; ++i) { + output.appendFormat("%d ", typed_data[i]); + } + break; + } + case SLONG: { + const int32_t* typed_data = getData<int32_t>(); + for (size_t i = 0; i < cappedCount; ++i) { + output.appendFormat("%d ", typed_data[i]); + } + break; + } + case SRATIONAL: { + const int32_t* typed_data = getData<int32_t>(); + cappedCount <<= 1; + for (size_t i = 0; i < cappedCount; i+=2) { + output.appendFormat("%d/%d ", typed_data[i], typed_data[i + 1]); + } + break; + } + case FLOAT: + case DOUBLE: { + const float* typed_data = getData<float>(); + for (size_t i = 0; i < cappedCount; ++i) { + output.appendFormat("%f ", typed_data[i]); + } + break; + } + default: { + output.append("unknown type "); + break; + } + } + + if (count > MAX_PRINT_STRING_LENGTH) { + output.append("..."); + } + output.append("']"); + return output; +} + +} /*namespace img_utils*/ +} /*namespace android*/ |