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/*
* 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 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*/
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