/*
* 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.
*/
//#define LOG_NDEBUG 0
#define LOG_TAG "DngCreator_JNI"
#include <inttypes.h>
#include <string.h>
#include <algorithm>
#include <memory>
#include <vector>
#include <cmath>
#include <android-base/properties.h>
#include <utils/Log.h>
#include <utils/Errors.h>
#include <utils/StrongPointer.h>
#include <utils/RefBase.h>
#include <utils/Vector.h>
#include <utils/String8.h>
#include <system/camera_metadata.h>
#include <camera/CameraMetadata.h>
#include <img_utils/DngUtils.h>
#include <img_utils/TagDefinitions.h>
#include <img_utils/TiffIfd.h>
#include <img_utils/TiffWriter.h>
#include <img_utils/Output.h>
#include <img_utils/Input.h>
#include <img_utils/StripSource.h>
#include "core_jni_helpers.h"
#include "android_runtime/AndroidRuntime.h"
#include "android_runtime/android_hardware_camera2_CameraMetadata.h"
#include <jni.h>
#include <nativehelper/JNIHelp.h>
using namespace android;
using namespace img_utils;
using android::base::GetProperty;
#define BAIL_IF_INVALID_RET_BOOL(expr, jnienv, tagId, writer) \
if ((expr) != OK) { \
jniThrowExceptionFmt(jnienv, "java/lang/IllegalArgumentException", \
"Invalid metadata for tag %s (%x)", (writer)->getTagName(tagId), (tagId)); \
return false; \
}
#define BAIL_IF_INVALID_RET_NULL_SP(expr, jnienv, tagId, writer) \
if ((expr) != OK) { \
jniThrowExceptionFmt(jnienv, "java/lang/IllegalArgumentException", \
"Invalid metadata for tag %s (%x)", (writer)->getTagName(tagId), (tagId)); \
return nullptr; \
}
#define BAIL_IF_INVALID_R(expr, jnienv, tagId, writer) \
if ((expr) != OK) { \
jniThrowExceptionFmt(jnienv, "java/lang/IllegalArgumentException", \
"Invalid metadata for tag %s (%x)", (writer)->getTagName(tagId), (tagId)); \
return -1; \
}
#define BAIL_IF_EMPTY_RET_NULL_SP(entry, jnienv, tagId, writer) \
if ((entry).count == 0) { \
jniThrowExceptionFmt(jnienv, "java/lang/IllegalArgumentException", \
"Missing metadata fields for tag %s (%x)", (writer)->getTagName(tagId), (tagId)); \
return nullptr; \
}
#define BAIL_IF_EXPR_RET_NULL_SP(expr, jnienv, tagId, writer) \
if (expr) { \
jniThrowExceptionFmt(jnienv, "java/lang/IllegalArgumentException", \
"Invalid metadata for tag %s (%x)", (writer)->getTagName(tagId), (tagId)); \
return nullptr; \
}
#define ANDROID_DNGCREATOR_CTX_JNI_ID "mNativeContext"
static struct {
jfieldID mNativeContext;
} gDngCreatorClassInfo;
static struct {
jmethodID mWriteMethod;
} gOutputStreamClassInfo;
static struct {
jmethodID mReadMethod;
jmethodID mSkipMethod;
} gInputStreamClassInfo;
static struct {
jmethodID mGetMethod;
} gInputByteBufferClassInfo;
enum {
BITS_PER_SAMPLE = 16,
BYTES_PER_SAMPLE = 2,
BYTES_PER_RGB_PIXEL = 3,
BITS_PER_RGB_SAMPLE = 8,
BYTES_PER_RGB_SAMPLE = 1,
SAMPLES_PER_RGB_PIXEL = 3,
SAMPLES_PER_RAW_PIXEL = 1,
TIFF_IFD_0 = 0,
TIFF_IFD_SUB1 = 1,
TIFF_IFD_GPSINFO = 2,
};
/**
* POD container class for GPS tag data.
*/
class GpsData {
public:
enum {
GPS_VALUE_LENGTH = 6,
GPS_REF_LENGTH = 2,
GPS_DATE_LENGTH = 11,
};
uint32_t mLatitude[GPS_VALUE_LENGTH];
uint32_t mLongitude[GPS_VALUE_LENGTH];
uint32_t mTimestamp[GPS_VALUE_LENGTH];
uint8_t mLatitudeRef[GPS_REF_LENGTH];
uint8_t mLongitudeRef[GPS_REF_LENGTH];
uint8_t mDate[GPS_DATE_LENGTH];
};
// ----------------------------------------------------------------------------
/**
* Container class for the persistent native context.
*/
class NativeContext : public LightRefBase<NativeContext> {
public:
enum {
DATETIME_COUNT = 20,
};
NativeContext(const CameraMetadata& characteristics, const CameraMetadata& result);
virtual ~NativeContext();
TiffWriter* getWriter();
std::shared_ptr<const CameraMetadata> getCharacteristics() const;
std::shared_ptr<const CameraMetadata> getResult() const;
uint32_t getThumbnailWidth() const;
uint32_t getThumbnailHeight() const;
const uint8_t* getThumbnail() const;
bool hasThumbnail() const;
bool setThumbnail(const uint8_t* buffer, uint32_t width, uint32_t height);
void setOrientation(uint16_t orientation);
uint16_t getOrientation() const;
void setDescription(const String8& desc);
String8 getDescription() const;
bool hasDescription() const;
void setGpsData(const GpsData& data);
GpsData getGpsData() const;
bool hasGpsData() const;
void setCaptureTime(const String8& formattedCaptureTime);
String8 getCaptureTime() const;
bool hasCaptureTime() const;
private:
Vector<uint8_t> mCurrentThumbnail;
TiffWriter mWriter;
std::shared_ptr<CameraMetadata> mCharacteristics;
std::shared_ptr<CameraMetadata> mResult;
uint32_t mThumbnailWidth;
uint32_t mThumbnailHeight;
uint16_t mOrientation;
bool mThumbnailSet;
bool mGpsSet;
bool mDescriptionSet;
bool mCaptureTimeSet;
String8 mDescription;
GpsData mGpsData;
String8 mFormattedCaptureTime;
};
NativeContext::NativeContext(const CameraMetadata& characteristics, const CameraMetadata& result) :
mCharacteristics(std::make_shared<CameraMetadata>(characteristics)),
mResult(std::make_shared<CameraMetadata>(result)), mThumbnailWidth(0),
mThumbnailHeight(0), mOrientation(TAG_ORIENTATION_UNKNOWN), mThumbnailSet(false),
mGpsSet(false), mDescriptionSet(false), mCaptureTimeSet(false) {}
NativeContext::~NativeContext() {}
TiffWriter* NativeContext::getWriter() {
return &mWriter;
}
std::shared_ptr<const CameraMetadata> NativeContext::getCharacteristics() const {
return mCharacteristics;
}
std::shared_ptr<const CameraMetadata> NativeContext::getResult() const {
return mResult;
}
uint32_t NativeContext::getThumbnailWidth() const {
return mThumbnailWidth;
}
uint32_t NativeContext::getThumbnailHeight() const {
return mThumbnailHeight;
}
const uint8_t* NativeContext::getThumbnail() const {
return mCurrentThumbnail.array();
}
bool NativeContext::hasThumbnail() const {
return mThumbnailSet;
}
bool NativeContext::setThumbnail(const uint8_t* buffer, uint32_t width, uint32_t height) {
mThumbnailWidth = width;
mThumbnailHeight = height;
size_t size = BYTES_PER_RGB_PIXEL * width * height;
if (mCurrentThumbnail.resize(size) < 0) {
ALOGE("%s: Could not resize thumbnail buffer.", __FUNCTION__);
return false;
}
uint8_t* thumb = mCurrentThumbnail.editArray();
memcpy(thumb, buffer, size);
mThumbnailSet = true;
return true;
}
void NativeContext::setOrientation(uint16_t orientation) {
mOrientation = orientation;
}
uint16_t NativeContext::getOrientation() const {
return mOrientation;
}
void NativeContext::setDescription(const String8& desc) {
mDescription = desc;
mDescriptionSet = true;
}
String8 NativeContext::getDescription() const {
return mDescription;
}
bool NativeContext::hasDescription() const {
return mDescriptionSet;
}
void NativeContext::setGpsData(const GpsData& data) {
mGpsData = data;
mGpsSet = true;
}
GpsData NativeContext::getGpsData() const {
return mGpsData;
}
bool NativeContext::hasGpsData() const {
return mGpsSet;
}
void NativeContext::setCaptureTime(const String8& formattedCaptureTime) {
mFormattedCaptureTime = formattedCaptureTime;
mCaptureTimeSet = true;
}
String8 NativeContext::getCaptureTime() const {
return mFormattedCaptureTime;
}
bool NativeContext::hasCaptureTime() const {
return mCaptureTimeSet;
}
// End of NativeContext
// ----------------------------------------------------------------------------
/**
* Wrapper class for a Java OutputStream.
*
* This class is not intended to be used across JNI calls.
*/
class JniOutputStream : public Output, public LightRefBase<JniOutputStream> {
public:
JniOutputStream(JNIEnv* env, jobject outStream);
virtual ~JniOutputStream();
status_t open();
status_t write(const uint8_t* buf, size_t offset, size_t count);
status_t close();
private:
enum {
BYTE_ARRAY_LENGTH = 4096
};
jobject mOutputStream;
JNIEnv* mEnv;
jbyteArray mByteArray;
};
JniOutputStream::JniOutputStream(JNIEnv* env, jobject outStream) : mOutputStream(outStream),
mEnv(env) {
mByteArray = env->NewByteArray(BYTE_ARRAY_LENGTH);
if (mByteArray == nullptr) {
jniThrowException(env, "java/lang/OutOfMemoryError", "Could not allocate byte array.");
}
}
JniOutputStream::~JniOutputStream() {
mEnv->DeleteLocalRef(mByteArray);
}
status_t JniOutputStream::open() {
// Do nothing
return OK;
}
status_t JniOutputStream::write(const uint8_t* buf, size_t offset, size_t count) {
while(count > 0) {
size_t len = BYTE_ARRAY_LENGTH;
len = (count > len) ? len : count;
mEnv->SetByteArrayRegion(mByteArray, 0, len, reinterpret_cast<const jbyte*>(buf + offset));
if (mEnv->ExceptionCheck()) {
return BAD_VALUE;
}
mEnv->CallVoidMethod(mOutputStream, gOutputStreamClassInfo.mWriteMethod, mByteArray,
0, len);
if (mEnv->ExceptionCheck()) {
return BAD_VALUE;
}
count -= len;
offset += len;
}
return OK;
}
status_t JniOutputStream::close() {
// Do nothing
return OK;
}
// End of JniOutputStream
// ----------------------------------------------------------------------------
/**
* Wrapper class for a Java InputStream.
*
* This class is not intended to be used across JNI calls.
*/
class JniInputStream : public Input, public LightRefBase<JniInputStream> {
public:
JniInputStream(JNIEnv* env, jobject inStream);
status_t open();
status_t close();
ssize_t read(uint8_t* buf, size_t offset, size_t count);
ssize_t skip(size_t count);
virtual ~JniInputStream();
private:
enum {
BYTE_ARRAY_LENGTH = 4096
};
jobject mInStream;
JNIEnv* mEnv;
jbyteArray mByteArray;
};
JniInputStream::JniInputStream(JNIEnv* env, jobject inStream) : mInStream(inStream), mEnv(env) {
mByteArray = env->NewByteArray(BYTE_ARRAY_LENGTH);
if (mByteArray == nullptr) {
jniThrowException(env, "java/lang/OutOfMemoryError", "Could not allocate byte array.");
}
}
JniInputStream::~JniInputStream() {
mEnv->DeleteLocalRef(mByteArray);
}
ssize_t JniInputStream::read(uint8_t* buf, size_t offset, size_t count) {
jint realCount = BYTE_ARRAY_LENGTH;
if (count < BYTE_ARRAY_LENGTH) {
realCount = count;
}
jint actual = mEnv->CallIntMethod(mInStream, gInputStreamClassInfo.mReadMethod, mByteArray, 0,
realCount);
if (actual < 0) {
return NOT_ENOUGH_DATA;
}
if (mEnv->ExceptionCheck()) {
return BAD_VALUE;
}
mEnv->GetByteArrayRegion(mByteArray, 0, actual, reinterpret_cast<jbyte*>(buf + offset));
if (mEnv->ExceptionCheck()) {
return BAD_VALUE;
}
return actual;
}
ssize_t JniInputStream::skip(size_t count) {
jlong actual = mEnv->CallLongMethod(mInStream, gInputStreamClassInfo.mSkipMethod,
static_cast<jlong>(count));
if (mEnv->ExceptionCheck()) {
return BAD_VALUE;
}
if (actual < 0) {
return NOT_ENOUGH_DATA;
}
return actual;
}
status_t JniInputStream::open() {
// Do nothing
return OK;
}
status_t JniInputStream::close() {
// Do nothing
return OK;
}
// End of JniInputStream
// ----------------------------------------------------------------------------
/**
* Wrapper class for a non-direct Java ByteBuffer.
*
* This class is not intended to be used across JNI calls.
*/
class JniInputByteBuffer : public Input, public LightRefBase<JniInputByteBuffer> {
public:
JniInputByteBuffer(JNIEnv* env, jobject inBuf);
status_t open();
status_t close();
ssize_t read(uint8_t* buf, size_t offset, size_t count);
virtual ~JniInputByteBuffer();
private:
enum {
BYTE_ARRAY_LENGTH = 4096
};
jobject mInBuf;
JNIEnv* mEnv;
jbyteArray mByteArray;
};
JniInputByteBuffer::JniInputByteBuffer(JNIEnv* env, jobject inBuf) : mInBuf(inBuf), mEnv(env) {
mByteArray = env->NewByteArray(BYTE_ARRAY_LENGTH);
if (mByteArray == nullptr) {
jniThrowException(env, "java/lang/OutOfMemoryError", "Could not allocate byte array.");
}
}
JniInputByteBuffer::~JniInputByteBuffer() {
mEnv->DeleteLocalRef(mByteArray);
}
ssize_t JniInputByteBuffer::read(uint8_t* buf, size_t offset, size_t count) {
jint realCount = BYTE_ARRAY_LENGTH;
if (count < BYTE_ARRAY_LENGTH) {
realCount = count;
}
jobject chainingBuf = mEnv->CallObjectMethod(mInBuf, gInputByteBufferClassInfo.mGetMethod,
mByteArray, 0, realCount);
mEnv->DeleteLocalRef(chainingBuf);
if (mEnv->ExceptionCheck()) {
ALOGE("%s: Exception while reading from input into byte buffer.", __FUNCTION__);
return BAD_VALUE;
}
mEnv->GetByteArrayRegion(mByteArray, 0, realCount, reinterpret_cast<jbyte*>(buf + offset));
if (mEnv->ExceptionCheck()) {
ALOGE("%s: Exception while reading from byte buffer.", __FUNCTION__);
return BAD_VALUE;
}
return realCount;
}
status_t JniInputByteBuffer::open() {
// Do nothing
return OK;
}
status_t JniInputByteBuffer::close() {
// Do nothing
return OK;
}
// End of JniInputByteBuffer
// ----------------------------------------------------------------------------
/**
* StripSource subclass for Input types.
*
* This class is not intended to be used across JNI calls.
*/
class InputStripSource : public StripSource, public LightRefBase<InputStripSource> {
public:
InputStripSource(JNIEnv* env, Input& input, uint32_t ifd, uint32_t width, uint32_t height,
uint32_t pixStride, uint32_t rowStride, uint64_t offset, uint32_t bytesPerSample,
uint32_t samplesPerPixel);
virtual ~InputStripSource();
virtual status_t writeToStream(Output& stream, uint32_t count);
virtual uint32_t getIfd() const;
protected:
uint32_t mIfd;
Input* mInput;
uint32_t mWidth;
uint32_t mHeight;
uint32_t mPixStride;
uint32_t mRowStride;
uint64_t mOffset;
JNIEnv* mEnv;
uint32_t mBytesPerSample;
uint32_t mSamplesPerPixel;
};
InputStripSource::InputStripSource(JNIEnv* env, Input& input, uint32_t ifd, uint32_t width,
uint32_t height, uint32_t pixStride, uint32_t rowStride, uint64_t offset,
uint32_t bytesPerSample, uint32_t samplesPerPixel) : mIfd(ifd), mInput(&input),
mWidth(width), mHeight(height), mPixStride(pixStride), mRowStride(rowStride),
mOffset(offset), mEnv(env), mBytesPerSample(bytesPerSample),
mSamplesPerPixel(samplesPerPixel) {}
InputStripSource::~InputStripSource() {}
status_t InputStripSource::writeToStream(Output& stream, uint32_t count) {
uint32_t fullSize = mWidth * mHeight * mBytesPerSample * mSamplesPerPixel;
jlong offset = mOffset;
if (fullSize != count) {
ALOGE("%s: Amount to write %u doesn't match image size %u", __FUNCTION__, count,
fullSize);
jniThrowException(mEnv, "java/lang/IllegalStateException", "Not enough data to write");
return BAD_VALUE;
}
// Skip offset
while (offset > 0) {
ssize_t skipped = mInput->skip(offset);
if (skipped <= 0) {
if (skipped == NOT_ENOUGH_DATA || skipped == 0) {
jniThrowExceptionFmt(mEnv, "java/io/IOException",
"Early EOF encountered in skip, not enough pixel data for image of size %u",
fullSize);
skipped = NOT_ENOUGH_DATA;
} else {
if (!mEnv->ExceptionCheck()) {
jniThrowException(mEnv, "java/io/IOException",
"Error encountered while skip bytes in input stream.");
}
}
return skipped;
}
offset -= skipped;
}
Vector<uint8_t> row;
if (row.resize(mRowStride) < 0) {
jniThrowException(mEnv, "java/lang/OutOfMemoryError", "Could not allocate row vector.");
return BAD_VALUE;
}
uint8_t* rowBytes = row.editArray();
for (uint32_t i = 0; i < mHeight; ++i) {
size_t rowFillAmt = 0;
size_t rowSize = mRowStride;
while (rowFillAmt < mRowStride) {
ssize_t bytesRead = mInput->read(rowBytes, rowFillAmt, rowSize);
if (bytesRead <= 0) {
if (bytesRead == NOT_ENOUGH_DATA || bytesRead == 0) {
ALOGE("%s: Early EOF on row %" PRIu32 ", received bytesRead %zd",
__FUNCTION__, i, bytesRead);
jniThrowExceptionFmt(mEnv, "java/io/IOException",
"Early EOF encountered, not enough pixel data for image of size %"
PRIu32, fullSize);
bytesRead = NOT_ENOUGH_DATA;
} else {
if (!mEnv->ExceptionCheck()) {
jniThrowException(mEnv, "java/io/IOException",
"Error encountered while reading");
}
}
return bytesRead;
}
rowFillAmt += bytesRead;
rowSize -= bytesRead;
}
if (mPixStride == mBytesPerSample * mSamplesPerPixel) {
ALOGV("%s: Using stream per-row write for strip.", __FUNCTION__);
if (stream.write(rowBytes, 0, mBytesPerSample * mSamplesPerPixel * mWidth) != OK ||
mEnv->ExceptionCheck()) {
if (!mEnv->ExceptionCheck()) {
jniThrowException(mEnv, "java/io/IOException", "Failed to write pixel data");
}
return BAD_VALUE;
}
} else {
ALOGV("%s: Using stream per-pixel write for strip.", __FUNCTION__);
jniThrowException(mEnv, "java/lang/IllegalStateException",
"Per-pixel strides are not supported for RAW16 -- pixels must be contiguous");
return BAD_VALUE;
// TODO: Add support for non-contiguous pixels if needed.
}
}
return OK;
}
uint32_t InputStripSource::getIfd() const {
return mIfd;
}
// End of InputStripSource
// ----------------------------------------------------------------------------
/**
* StripSource subclass for direct buffer types.
*
* This class is not intended to be used across JNI calls.
*/
class DirectStripSource : public StripSource, public LightRefBase<DirectStripSource> {
public:
DirectStripSource(JNIEnv* env, const uint8_t* pixelBytes, uint32_t ifd, uint32_t width,
uint32_t height, uint32_t pixStride, uint32_t rowStride, uint64_t offset,
uint32_t bytesPerSample, uint32_t samplesPerPixel);
virtual ~DirectStripSource();
virtual status_t writeToStream(Output& stream, uint32_t count);
virtual uint32_t getIfd() const;
protected:
uint32_t mIfd;
const uint8_t* mPixelBytes;
uint32_t mWidth;
uint32_t mHeight;
uint32_t mPixStride;
uint32_t mRowStride;
uint16_t mOffset;
JNIEnv* mEnv;
uint32_t mBytesPerSample;
uint32_t mSamplesPerPixel;
};
DirectStripSource::DirectStripSource(JNIEnv* env, const uint8_t* pixelBytes, uint32_t ifd,
uint32_t width, uint32_t height, uint32_t pixStride, uint32_t rowStride,
uint64_t offset, uint32_t bytesPerSample, uint32_t samplesPerPixel) : mIfd(ifd),
mPixelBytes(pixelBytes), mWidth(width), mHeight(height), mPixStride(pixStride),
mRowStride(rowStride), mOffset(offset), mEnv(env), mBytesPerSample(bytesPerSample),
mSamplesPerPixel(samplesPerPixel) {}
DirectStripSource::~DirectStripSource() {}
status_t DirectStripSource::writeToStream(Output& stream, uint32_t count) {
uint32_t fullSize = mWidth * mHeight * mBytesPerSample * mSamplesPerPixel;
if (fullSize != count) {
ALOGE("%s: Amount to write %u doesn't match image size %u", __FUNCTION__, count,
fullSize);
jniThrowException(mEnv, "java/lang/IllegalStateException", "Not enough data to write");
return BAD_VALUE;
}
if (mPixStride == mBytesPerSample * mSamplesPerPixel
&& mRowStride == mWidth * mBytesPerSample * mSamplesPerPixel) {
ALOGV("%s: Using direct single-pass write for strip.", __FUNCTION__);
if (stream.write(mPixelBytes, mOffset, fullSize) != OK || mEnv->ExceptionCheck()) {
if (!mEnv->ExceptionCheck()) {
jniThrowException(mEnv, "java/io/IOException", "Failed to write pixel data");
}
return BAD_VALUE;
}
} else if (mPixStride == mBytesPerSample * mSamplesPerPixel) {
ALOGV("%s: Using direct per-row write for strip.", __FUNCTION__);
for (size_t i = 0; i < mHeight; ++i) {
if (stream.write(mPixelBytes, mOffset + i * mRowStride, mPixStride * mWidth) != OK ||
mEnv->ExceptionCheck()) {
if (!mEnv->ExceptionCheck()) {
jniThrowException(mEnv, "java/io/IOException", "Failed to write pixel data");
}
return BAD_VALUE;
}
}
} else {
ALOGV("%s: Using direct per-pixel write for strip.", __FUNCTION__);
jniThrowException(mEnv, "java/lang/IllegalStateException",
"Per-pixel strides are not supported for RAW16 -- pixels must be contiguous");
return BAD_VALUE;
// TODO: Add support for non-contiguous pixels if needed.
}
return OK;
}
uint32_t DirectStripSource::getIfd() const {
return mIfd;
}
// End of DirectStripSource
// ----------------------------------------------------------------------------
/**
* Calculate the default crop relative to the "active area" of the image sensor (this active area
* will always be the pre-correction active area rectangle), and set this.
*/
static status_t calculateAndSetCrop(JNIEnv* env, const CameraMetadata& characteristics,
sp<TiffWriter> writer) {
camera_metadata_ro_entry entry =
characteristics.find(ANDROID_SENSOR_INFO_PRE_CORRECTION_ACTIVE_ARRAY_SIZE);
uint32_t width = static_cast<uint32_t>(entry.data.i32[2]);
uint32_t height = static_cast<uint32_t>(entry.data.i32[3]);
const uint32_t margin = 8; // Default margin recommended by Adobe for interpolation.
if (width < margin * 2 || height < margin * 2) {
ALOGE("%s: Cannot calculate default crop for image, pre-correction active area is too"
"small: h=%" PRIu32 ", w=%" PRIu32, __FUNCTION__, height, width);
jniThrowException(env, "java/lang/IllegalStateException",
"Pre-correction active area is too small.");
return BAD_VALUE;
}
uint32_t defaultCropOrigin[] = {margin, margin};
uint32_t defaultCropSize[] = {width - defaultCropOrigin[0] - margin,
height - defaultCropOrigin[1] - margin};
BAIL_IF_INVALID_R(writer->addEntry(TAG_DEFAULTCROPORIGIN, 2, defaultCropOrigin,
TIFF_IFD_0), env, TAG_DEFAULTCROPORIGIN, writer);
BAIL_IF_INVALID_R(writer->addEntry(TAG_DEFAULTCROPSIZE, 2, defaultCropSize,
TIFF_IFD_0), env, TAG_DEFAULTCROPSIZE, writer);
return OK;
}
static bool validateDngHeader(JNIEnv* env, sp<TiffWriter> writer,
const CameraMetadata& characteristics, jint width, jint height) {
if (width <= 0) {
jniThrowExceptionFmt(env, "java/lang/IllegalArgumentException", \
"Image width %d is invalid", width);
return false;
}
if (height <= 0) {
jniThrowExceptionFmt(env, "java/lang/IllegalArgumentException", \
"Image height %d is invalid", height);
return false;
}
camera_metadata_ro_entry preCorrectionEntry =
characteristics.find(ANDROID_SENSOR_INFO_PRE_CORRECTION_ACTIVE_ARRAY_SIZE);
camera_metadata_ro_entry pixelArrayEntry =
characteristics.find(ANDROID_SENSOR_INFO_PIXEL_ARRAY_SIZE);
int pWidth = static_cast<int>(pixelArrayEntry.data.i32[0]);
int pHeight = static_cast<int>(pixelArrayEntry.data.i32[1]);
int cWidth = static_cast<int>(preCorrectionEntry.data.i32[2]);
int cHeight = static_cast<int>(preCorrectionEntry.data.i32[3]);
bool matchesPixelArray = (pWidth == width && pHeight == height);
bool matchesPreCorrectionArray = (cWidth == width && cHeight == height);
if (!(matchesPixelArray || matchesPreCorrectionArray)) {
jniThrowExceptionFmt(env, "java/lang/IllegalArgumentException", \
"Image dimensions (w=%d,h=%d) are invalid, must match either the pixel "
"array size (w=%d, h=%d) or the pre-correction array size (w=%d, h=%d)",
width, height, pWidth, pHeight, cWidth, cHeight);
return false;
}
return true;
}
static status_t moveEntries(sp<TiffWriter> writer, uint32_t ifdFrom, uint32_t ifdTo,
const Vector<uint16_t>& entries) {
for (size_t i = 0; i < entries.size(); ++i) {
uint16_t tagId = entries[i];
sp<TiffEntry> entry = writer->getEntry(tagId, ifdFrom);
if (entry.get() == nullptr) {
ALOGE("%s: moveEntries failed, entry %u not found in IFD %u", __FUNCTION__, tagId,
ifdFrom);
return BAD_VALUE;
}
if (writer->addEntry(entry, ifdTo) != OK) {
ALOGE("%s: moveEntries failed, could not add entry %u to IFD %u", __FUNCTION__, tagId,
ifdFrom);
return BAD_VALUE;
}
writer->removeEntry(tagId, ifdFrom);
}
return OK;
}
/**
* Write CFA pattern for given CFA enum into cfaOut. cfaOut must have length >= 4.
* Returns OK on success, or a negative error code if the CFA enum was invalid.
*/
static status_t convertCFA(uint8_t cfaEnum, /*out*/uint8_t* cfaOut) {
camera_metadata_enum_android_sensor_info_color_filter_arrangement_t cfa =
static_cast<camera_metadata_enum_android_sensor_info_color_filter_arrangement_t>(
cfaEnum);
switch(cfa) {
case ANDROID_SENSOR_INFO_COLOR_FILTER_ARRANGEMENT_RGGB: {
cfaOut[0] = 0;
cfaOut[1] = 1;
cfaOut[2] = 1;
cfaOut[3] = 2;
break;
}
case ANDROID_SENSOR_INFO_COLOR_FILTER_ARRANGEMENT_GRBG: {
cfaOut[0] = 1;
cfaOut[1] = 0;
cfaOut[2] = 2;
cfaOut[3] = 1;
break;
}
case ANDROID_SENSOR_INFO_COLOR_FILTER_ARRANGEMENT_GBRG: {
cfaOut[0] = 1;
cfaOut[1] = 2;
cfaOut[2] = 0;
cfaOut[3] = 1;
break;
}
case ANDROID_SENSOR_INFO_COLOR_FILTER_ARRANGEMENT_BGGR: {
cfaOut[0] = 2;
cfaOut[1] = 1;
cfaOut[2] = 1;
cfaOut[3] = 0;
break;
}
default: {
return BAD_VALUE;
}
}
return OK;
}
/**
* Convert the CFA layout enum to an OpcodeListBuilder::CfaLayout enum, defaults to
* RGGB for an unknown enum.
*/
static OpcodeListBuilder::CfaLayout convertCFAEnumToOpcodeLayout(uint8_t cfaEnum) {
camera_metadata_enum_android_sensor_info_color_filter_arrangement_t cfa =
static_cast<camera_metadata_enum_android_sensor_info_color_filter_arrangement_t>(
cfaEnum);
switch(cfa) {
case ANDROID_SENSOR_INFO_COLOR_FILTER_ARRANGEMENT_RGGB: {
return OpcodeListBuilder::CFA_RGGB;
}
case ANDROID_SENSOR_INFO_COLOR_FILTER_ARRANGEMENT_GRBG: {
return OpcodeListBuilder::CFA_GRBG;
}
case ANDROID_SENSOR_INFO_COLOR_FILTER_ARRANGEMENT_GBRG: {
return OpcodeListBuilder::CFA_GBRG;
}
case ANDROID_SENSOR_INFO_COLOR_FILTER_ARRANGEMENT_BGGR: {
return OpcodeListBuilder::CFA_BGGR;
}
default: {
return OpcodeListBuilder::CFA_RGGB;
}
}
}
/**
* For each color plane, find the corresponding noise profile coefficients given in the
* per-channel noise profile. If multiple channels in the CFA correspond to a color in the color
* plane, this method takes the pair of noise profile coefficients with the higher S coefficient.
*
* perChannelNoiseProfile - numChannels * 2 noise profile coefficients.
* cfa - numChannels color channels corresponding to each of the per-channel noise profile
* coefficients.
* numChannels - the number of noise profile coefficient pairs and color channels given in
* the perChannelNoiseProfile and cfa arguments, respectively.
* planeColors - the color planes in the noise profile output.
* numPlanes - the number of planes in planeColors and pairs of coefficients in noiseProfile.
* noiseProfile - 2 * numPlanes doubles containing numPlanes pairs of noise profile coefficients.
*
* returns OK, or a negative error code on failure.
*/
static status_t generateNoiseProfile(const double* perChannelNoiseProfile, uint8_t* cfa,
size_t numChannels, const uint8_t* planeColors, size_t numPlanes,
/*out*/double* noiseProfile) {
for (size_t p = 0; p < numPlanes; ++p) {
size_t S = p * 2;
size_t O = p * 2 + 1;
noiseProfile[S] = 0;
noiseProfile[O] = 0;
bool uninitialized = true;
for (size_t c = 0; c < numChannels; ++c) {
if (cfa[c] == planeColors[p] && perChannelNoiseProfile[c * 2] > noiseProfile[S]) {
noiseProfile[S] = perChannelNoiseProfile[c * 2];
noiseProfile[O] = perChannelNoiseProfile[c * 2 + 1];
uninitialized = false;
}
}
if (uninitialized) {
ALOGE("%s: No valid NoiseProfile coefficients for color plane %zu",
__FUNCTION__, p);
return BAD_VALUE;
}
}
return OK;
}
// ----------------------------------------------------------------------------
extern "C" {
static NativeContext* DngCreator_getNativeContext(JNIEnv* env, jobject thiz) {
ALOGV("%s:", __FUNCTION__);
return reinterpret_cast<NativeContext*>(env->GetLongField(thiz,
gDngCreatorClassInfo.mNativeContext));
}
static void DngCreator_setNativeContext(JNIEnv* env, jobject thiz, sp<NativeContext> context) {
ALOGV("%s:", __FUNCTION__);
NativeContext* current = DngCreator_getNativeContext(env, thiz);
if (context != nullptr) {
context->incStrong((void*) DngCreator_setNativeContext);
}
if (current) {
current->decStrong((void*) DngCreator_setNativeContext);
}
env->SetLongField(thiz, gDngCreatorClassInfo.mNativeContext,
reinterpret_cast<jlong>(context.get()));
}
static void DngCreator_nativeClassInit(JNIEnv* env, jclass clazz) {
ALOGV("%s:", __FUNCTION__);
gDngCreatorClassInfo.mNativeContext = GetFieldIDOrDie(env,
clazz, ANDROID_DNGCREATOR_CTX_JNI_ID, "J");
jclass outputStreamClazz = FindClassOrDie(env, "java/io/OutputStream");
gOutputStreamClassInfo.mWriteMethod = GetMethodIDOrDie(env,
outputStreamClazz, "write", "([BII)V");
jclass inputStreamClazz = FindClassOrDie(env, "java/io/InputStream");
gInputStreamClassInfo.mReadMethod = GetMethodIDOrDie(env, inputStreamClazz, "read", "([BII)I");
gInputStreamClassInfo.mSkipMethod = GetMethodIDOrDie(env, inputStreamClazz, "skip", "(J)J");
jclass inputBufferClazz = FindClassOrDie(env, "java/nio/ByteBuffer");
gInputByteBufferClassInfo.mGetMethod = GetMethodIDOrDie(env,
inputBufferClazz, "get", "([BII)Ljava/nio/ByteBuffer;");
}
static void DngCreator_init(JNIEnv* env, jobject thiz, jobject characteristicsPtr,
jobject resultsPtr, jstring formattedCaptureTime) {
ALOGV("%s:", __FUNCTION__);
CameraMetadata characteristics;
CameraMetadata results;
if (CameraMetadata_getNativeMetadata(env, characteristicsPtr, &characteristics) != OK) {
jniThrowException(env, "java/lang/AssertionError",
"No native metadata defined for camera characteristics.");
return;
}
if (CameraMetadata_getNativeMetadata(env, resultsPtr, &results) != OK) {
jniThrowException(env, "java/lang/AssertionError",
"No native metadata defined for capture results.");
return;
}
sp<NativeContext> nativeContext = new NativeContext(characteristics, results);
const char* captureTime = env->GetStringUTFChars(formattedCaptureTime, nullptr);
size_t len = strlen(captureTime) + 1;
if (len != NativeContext::DATETIME_COUNT) {
jniThrowException(env, "java/lang/IllegalArgumentException",
"Formatted capture time string length is not required 20 characters");
return;
}
nativeContext->setCaptureTime(String8(captureTime));
DngCreator_setNativeContext(env, thiz, nativeContext);
}
static sp<TiffWriter> DngCreator_setup(JNIEnv* env, jobject thiz, uint32_t imageWidth,
uint32_t imageHeight) {
NativeContext* nativeContext = DngCreator_getNativeContext(env, thiz);
if (nativeContext == nullptr) {
jniThrowException(env, "java/lang/AssertionError",
"No native context, must call init before other operations.");
return nullptr;
}
CameraMetadata characteristics = *(nativeContext->getCharacteristics());
CameraMetadata results = *(nativeContext->getResult());
sp<TiffWriter> writer = new TiffWriter();
uint32_t preWidth = 0;
uint32_t preHeight = 0;
{
// Check dimensions
camera_metadata_entry entry =
characteristics.find(ANDROID_SENSOR_INFO_PRE_CORRECTION_ACTIVE_ARRAY_SIZE);
BAIL_IF_EMPTY_RET_NULL_SP(entry, env, TAG_IMAGEWIDTH, writer);
preWidth = static_cast<uint32_t>(entry.data.i32[2]);
preHeight = static_cast<uint32_t>(entry.data.i32[3]);
camera_metadata_entry pixelArrayEntry =
characteristics.find(ANDROID_SENSOR_INFO_PIXEL_ARRAY_SIZE);
uint32_t pixWidth = static_cast<uint32_t>(pixelArrayEntry.data.i32[0]);
uint32_t pixHeight = static_cast<uint32_t>(pixelArrayEntry.data.i32[1]);
if (!((imageWidth == preWidth && imageHeight == preHeight) ||
(imageWidth == pixWidth && imageHeight == pixHeight))) {
jniThrowException(env, "java/lang/AssertionError",
"Height and width of imate buffer did not match height and width of"
"either the preCorrectionActiveArraySize or the pixelArraySize.");
return nullptr;
}
}
writer->addIfd(TIFF_IFD_0);
status_t err = OK;
const uint32_t samplesPerPixel = 1;
const uint32_t bitsPerSample = BITS_PER_SAMPLE;
OpcodeListBuilder::CfaLayout opcodeCfaLayout = OpcodeListBuilder::CFA_RGGB;
uint8_t cfaPlaneColor[3] = {0, 1, 2};
uint8_t cfaEnum = -1;
// TODO: Greensplit.
// TODO: Add remaining non-essential tags
// Setup main image tags
{
// Set orientation
uint16_t orientation = TAG_ORIENTATION_NORMAL;
BAIL_IF_INVALID_RET_NULL_SP(writer->addEntry(TAG_ORIENTATION, 1, &orientation, TIFF_IFD_0),
env, TAG_ORIENTATION, writer);
}
{
// Set subfiletype
uint32_t subfileType = 0; // Main image
BAIL_IF_INVALID_RET_NULL_SP(writer->addEntry(TAG_NEWSUBFILETYPE, 1, &subfileType,
TIFF_IFD_0), env, TAG_NEWSUBFILETYPE, writer);
}
{
// Set bits per sample
uint16_t bits = static_cast<uint16_t>(bitsPerSample);
BAIL_IF_INVALID_RET_NULL_SP(writer->addEntry(TAG_BITSPERSAMPLE, 1, &bits, TIFF_IFD_0), env,
TAG_BITSPERSAMPLE, writer);
}
{
// Set compression
uint16_t compression = 1; // None
BAIL_IF_INVALID_RET_NULL_SP(writer->addEntry(TAG_COMPRESSION, 1, &compression,
TIFF_IFD_0), env, TAG_COMPRESSION, writer);
}
{
// Set dimensions
BAIL_IF_INVALID_RET_NULL_SP(writer->addEntry(TAG_IMAGEWIDTH, 1, &imageWidth, TIFF_IFD_0),
env, TAG_IMAGEWIDTH, writer);
BAIL_IF_INVALID_RET_NULL_SP(writer->addEntry(TAG_IMAGELENGTH, 1, &imageHeight, TIFF_IFD_0),
env, TAG_IMAGELENGTH, writer);
}
{
// Set photometric interpretation
uint16_t interpretation = 32803; // CFA
BAIL_IF_INVALID_RET_NULL_SP(writer->addEntry(TAG_PHOTOMETRICINTERPRETATION, 1,
&interpretation, TIFF_IFD_0), env, TAG_PHOTOMETRICINTERPRETATION, writer);
}
{
// Set blacklevel tags, using dynamic black level if available
camera_metadata_entry entry =
results.find(ANDROID_SENSOR_DYNAMIC_BLACK_LEVEL);
uint32_t blackLevelRational[8] = {0};
if (entry.count != 0) {
BAIL_IF_EXPR_RET_NULL_SP(entry.count != 4, env, TAG_BLACKLEVEL, writer);
for (size_t i = 0; i < entry.count; i++) {
blackLevelRational[i * 2] = static_cast<uint32_t>(entry.data.f[i] * 100);
blackLevelRational[i * 2 + 1] = 100;
}
} else {
// Fall back to static black level which is guaranteed
entry = characteristics.find(ANDROID_SENSOR_BLACK_LEVEL_PATTERN);
BAIL_IF_EXPR_RET_NULL_SP(entry.count != 4, env, TAG_BLACKLEVEL, writer);
for (size_t i = 0; i < entry.count; i++) {
blackLevelRational[i * 2] = static_cast<uint32_t>(entry.data.i32[i]);
blackLevelRational[i * 2 + 1] = 1;
}
}
BAIL_IF_INVALID_RET_NULL_SP(writer->addEntry(TAG_BLACKLEVEL, 4, blackLevelRational,
TIFF_IFD_0), env, TAG_BLACKLEVEL, writer);
uint16_t repeatDim[2] = {2, 2};
BAIL_IF_INVALID_RET_NULL_SP(writer->addEntry(TAG_BLACKLEVELREPEATDIM, 2, repeatDim,
TIFF_IFD_0), env, TAG_BLACKLEVELREPEATDIM, writer);
}
{
// Set samples per pixel
uint16_t samples = static_cast<uint16_t>(samplesPerPixel);
BAIL_IF_INVALID_RET_NULL_SP(writer->addEntry(TAG_SAMPLESPERPIXEL, 1, &samples, TIFF_IFD_0),
env, TAG_SAMPLESPERPIXEL, writer);
}
{
// Set planar configuration
uint16_t config = 1; // Chunky
BAIL_IF_INVALID_RET_NULL_SP(writer->addEntry(TAG_PLANARCONFIGURATION, 1, &config,
TIFF_IFD_0), env, TAG_PLANARCONFIGURATION, writer);
}
{
// Set CFA pattern dimensions
uint16_t repeatDim[2] = {2, 2};
BAIL_IF_INVALID_RET_NULL_SP(writer->addEntry(TAG_CFAREPEATPATTERNDIM, 2, repeatDim,
TIFF_IFD_0), env, TAG_CFAREPEATPATTERNDIM, writer);
}
{
// Set CFA pattern
camera_metadata_entry entry =
characteristics.find(ANDROID_SENSOR_INFO_COLOR_FILTER_ARRANGEMENT);
BAIL_IF_EMPTY_RET_NULL_SP(entry, env, TAG_CFAPATTERN, writer);
const int cfaLength = 4;
cfaEnum = entry.data.u8[0];
uint8_t cfa[cfaLength];
if ((err = convertCFA(cfaEnum, /*out*/cfa)) != OK) {
jniThrowExceptionFmt(env, "java/lang/IllegalStateException",
"Invalid metadata for tag %d", TAG_CFAPATTERN);
}
BAIL_IF_INVALID_RET_NULL_SP(writer->addEntry(TAG_CFAPATTERN, cfaLength, cfa, TIFF_IFD_0),
env, TAG_CFAPATTERN, writer);
opcodeCfaLayout = convertCFAEnumToOpcodeLayout(cfaEnum);
}
{
// Set CFA plane color
BAIL_IF_INVALID_RET_NULL_SP(writer->addEntry(TAG_CFAPLANECOLOR, 3, cfaPlaneColor,
TIFF_IFD_0), env, TAG_CFAPLANECOLOR, writer);
}
{
// Set CFA layout
uint16_t cfaLayout = 1;
BAIL_IF_INVALID_RET_NULL_SP(writer->addEntry(TAG_CFALAYOUT, 1, &cfaLayout, TIFF_IFD_0),
env, TAG_CFALAYOUT, writer);
}
{
// image description
uint8_t imageDescription = '\0'; // empty
BAIL_IF_INVALID_RET_NULL_SP(writer->addEntry(TAG_IMAGEDESCRIPTION, 1, &imageDescription,
TIFF_IFD_0), env, TAG_IMAGEDESCRIPTION, writer);
}
{
// make
// Use "" to represent unknown make as suggested in TIFF/EP spec.
std::string manufacturer = GetProperty("ro.product.manufacturer", "");
uint32_t count = static_cast<uint32_t>(manufacturer.size()) + 1;
BAIL_IF_INVALID_RET_NULL_SP(writer->addEntry(TAG_MAKE, count,
reinterpret_cast<const uint8_t*>(manufacturer.c_str()), TIFF_IFD_0), env, TAG_MAKE,
writer);
}
{
// model
// Use "" to represent unknown model as suggested in TIFF/EP spec.
std::string model = GetProperty("ro.product.model", "");
uint32_t count = static_cast<uint32_t>(model.size()) + 1;
BAIL_IF_INVALID_RET_NULL_SP(writer->addEntry(TAG_MODEL, count,
reinterpret_cast<const uint8_t*>(model.c_str()), TIFF_IFD_0), env, TAG_MODEL,
writer);
}
{
// x resolution
uint32_t xres[] = { 72, 1 }; // default 72 ppi
BAIL_IF_INVALID_RET_NULL_SP(writer->addEntry(TAG_XRESOLUTION, 1, xres, TIFF_IFD_0),
env, TAG_XRESOLUTION, writer);
// y resolution
uint32_t yres[] = { 72, 1 }; // default 72 ppi
BAIL_IF_INVALID_RET_NULL_SP(writer->addEntry(TAG_YRESOLUTION, 1, yres, TIFF_IFD_0),
env, TAG_YRESOLUTION, writer);
uint16_t unit = 2; // inches
BAIL_IF_INVALID_RET_NULL_SP(writer->addEntry(TAG_RESOLUTIONUNIT, 1, &unit, TIFF_IFD_0),
env, TAG_RESOLUTIONUNIT, writer);
}
{
// software
std::string software = GetProperty("ro.build.fingerprint", "");
uint32_t count = static_cast<uint32_t>(software.size()) + 1;
BAIL_IF_INVALID_RET_NULL_SP(writer->addEntry(TAG_SOFTWARE, count,
reinterpret_cast<const uint8_t*>(software.c_str()), TIFF_IFD_0), env, TAG_SOFTWARE,
writer);
}
if (nativeContext->hasCaptureTime()) {
// datetime
String8 captureTime = nativeContext->getCaptureTime();
if (writer->addEntry(TAG_DATETIME, NativeContext::DATETIME_COUNT,
reinterpret_cast<const uint8_t*>(captureTime.string()), TIFF_IFD_0) != OK) {
jniThrowExceptionFmt(env, "java/lang/IllegalArgumentException",
"Invalid metadata for tag %x", TAG_DATETIME);
return nullptr;
}
// datetime original
if (writer->addEntry(TAG_DATETIMEORIGINAL, NativeContext::DATETIME_COUNT,
reinterpret_cast<const uint8_t*>(captureTime.string()), TIFF_IFD_0) != OK) {
jniThrowExceptionFmt(env, "java/lang/IllegalArgumentException",
"Invalid metadata for tag %x", TAG_DATETIMEORIGINAL);
return nullptr;
}
}
{
// TIFF/EP standard id
uint8_t standardId[] = { 1, 0, 0, 0 };
BAIL_IF_INVALID_RET_NULL_SP(writer->addEntry(TAG_TIFFEPSTANDARDID, 4, standardId,
TIFF_IFD_0), env, TAG_TIFFEPSTANDARDID, writer);
}
{
// copyright
uint8_t copyright = '\0'; // empty
BAIL_IF_INVALID_RET_NULL_SP(writer->addEntry(TAG_COPYRIGHT, 1, ©right,
TIFF_IFD_0), env, TAG_COPYRIGHT, writer);
}
{
// exposure time
camera_metadata_entry entry =
results.find(ANDROID_SENSOR_EXPOSURE_TIME);
BAIL_IF_EMPTY_RET_NULL_SP(entry, env, TAG_EXPOSURETIME, writer);
int64_t exposureTime = *(entry.data.i64);
if (exposureTime < 0) {
// Should be unreachable
jniThrowException(env, "java/lang/IllegalArgumentException",
"Negative exposure time in metadata");
return nullptr;
}
// Ensure exposure time doesn't overflow (for exposures > 4s)
uint32_t denominator = 1000000000;
while (exposureTime > UINT32_MAX) {
exposureTime >>= 1;
denominator >>= 1;
if (denominator == 0) {
// Should be unreachable
jniThrowException(env, "java/lang/IllegalArgumentException",
"Exposure time too long");
return nullptr;
}
}
uint32_t exposure[] = { static_cast<uint32_t>(exposureTime), denominator };
BAIL_IF_INVALID_RET_NULL_SP(writer->addEntry(TAG_EXPOSURETIME, 1, exposure,
TIFF_IFD_0), env, TAG_EXPOSURETIME, writer);
}
{
// ISO speed ratings
camera_metadata_entry entry =
results.find(ANDROID_SENSOR_SENSITIVITY);
BAIL_IF_EMPTY_RET_NULL_SP(entry, env, TAG_ISOSPEEDRATINGS, writer);
int32_t tempIso = *(entry.data.i32);
if (tempIso < 0) {
jniThrowException(env, "java/lang/IllegalArgumentException",
"Negative ISO value");
return nullptr;
}
if (tempIso > UINT16_MAX) {
ALOGW("%s: ISO value overflows UINT16_MAX, clamping to max", __FUNCTION__);
tempIso = UINT16_MAX;
}
uint16_t iso = static_cast<uint16_t>(tempIso);
BAIL_IF_INVALID_RET_NULL_SP(writer->addEntry(TAG_ISOSPEEDRATINGS, 1, &iso,
TIFF_IFD_0), env, TAG_ISOSPEEDRATINGS, writer);
}
{
// Baseline exposure
camera_metadata_entry entry =
results.find(ANDROID_CONTROL_POST_RAW_SENSITIVITY_BOOST);
BAIL_IF_EMPTY_RET_NULL_SP(entry, env, TAG_BASELINEEXPOSURE, writer);
// post RAW gain should be boostValue / 100
double postRAWGain = static_cast<double> (entry.data.i32[0]) / 100.f;
// Baseline exposure should be in EV units so log2(gain) =
// log10(gain)/log10(2)
double baselineExposure = std::log(postRAWGain) / std::log(2.0f);
int32_t baseExposureSRat[] = { static_cast<int32_t> (baselineExposure * 100),
100 };
BAIL_IF_INVALID_RET_NULL_SP(writer->addEntry(TAG_BASELINEEXPOSURE, 1,
baseExposureSRat, TIFF_IFD_0), env, TAG_BASELINEEXPOSURE, writer);
}
{
// focal length
camera_metadata_entry entry =
results.find(ANDROID_LENS_FOCAL_LENGTH);
BAIL_IF_EMPTY_RET_NULL_SP(entry, env, TAG_FOCALLENGTH, writer);
uint32_t focalLength[] = { static_cast<uint32_t>(*(entry.data.f) * 100), 100 };
BAIL_IF_INVALID_RET_NULL_SP(writer->addEntry(TAG_FOCALLENGTH, 1, focalLength,
TIFF_IFD_0), env, TAG_FOCALLENGTH, writer);
}
{
// f number
camera_metadata_entry entry =
results.find(ANDROID_LENS_APERTURE);
BAIL_IF_EMPTY_RET_NULL_SP(entry, env, TAG_FNUMBER, writer);
uint32_t fnum[] = { static_cast<uint32_t>(*(entry.data.f) * 100), 100 };
BAIL_IF_INVALID_RET_NULL_SP(writer->addEntry(TAG_FNUMBER, 1, fnum,
TIFF_IFD_0), env, TAG_FNUMBER, writer);
}
{
// Set DNG version information
uint8_t version[4] = {1, 4, 0, 0};
BAIL_IF_INVALID_RET_NULL_SP(writer->addEntry(TAG_DNGVERSION, 4, version, TIFF_IFD_0),
env, TAG_DNGVERSION, writer);
uint8_t backwardVersion[4] = {1, 1, 0, 0};
BAIL_IF_INVALID_RET_NULL_SP(writer->addEntry(TAG_DNGBACKWARDVERSION, 4, backwardVersion,
TIFF_IFD_0), env, TAG_DNGBACKWARDVERSION, writer);
}
{
// Set whitelevel
camera_metadata_entry entry =
characteristics.find(ANDROID_SENSOR_INFO_WHITE_LEVEL);
BAIL_IF_EMPTY_RET_NULL_SP(entry, env, TAG_WHITELEVEL, writer);
uint32_t whiteLevel = static_cast<uint32_t>(entry.data.i32[0]);
BAIL_IF_INVALID_RET_NULL_SP(writer->addEntry(TAG_WHITELEVEL, 1, &whiteLevel, TIFF_IFD_0),
env, TAG_WHITELEVEL, writer);
}
{
// Set default scale
uint32_t defaultScale[4] = {1, 1, 1, 1};
BAIL_IF_INVALID_RET_NULL_SP(writer->addEntry(TAG_DEFAULTSCALE, 2, defaultScale,
TIFF_IFD_0), env, TAG_DEFAULTSCALE, writer);
}
bool singleIlluminant = false;
{
// Set calibration illuminants
camera_metadata_entry entry1 =
characteristics.find(ANDROID_SENSOR_REFERENCE_ILLUMINANT1);
BAIL_IF_EMPTY_RET_NULL_SP(entry1, env, TAG_CALIBRATIONILLUMINANT1, writer);
camera_metadata_entry entry2 =
characteristics.find(ANDROID_SENSOR_REFERENCE_ILLUMINANT2);
if (entry2.count == 0) {
singleIlluminant = true;
}
uint16_t ref1 = entry1.data.u8[0];
BAIL_IF_INVALID_RET_NULL_SP(writer->addEntry(TAG_CALIBRATIONILLUMINANT1, 1, &ref1,
TIFF_IFD_0), env, TAG_CALIBRATIONILLUMINANT1, writer);
if (!singleIlluminant) {
uint16_t ref2 = entry2.data.u8[0];
BAIL_IF_INVALID_RET_NULL_SP(writer->addEntry(TAG_CALIBRATIONILLUMINANT2, 1, &ref2,
TIFF_IFD_0), env, TAG_CALIBRATIONILLUMINANT2, writer);
}
}
{
// Set color transforms
camera_metadata_entry entry1 =
characteristics.find(ANDROID_SENSOR_COLOR_TRANSFORM1);
BAIL_IF_EMPTY_RET_NULL_SP(entry1, env, TAG_COLORMATRIX1, writer);
int32_t colorTransform1[entry1.count * 2];
size_t ctr = 0;
for(size_t i = 0; i < entry1.count; ++i) {
colorTransform1[ctr++] = entry1.data.r[i].numerator;
colorTransform1[ctr++] = entry1.data.r[i].denominator;
}
BAIL_IF_INVALID_RET_NULL_SP(writer->addEntry(TAG_COLORMATRIX1, entry1.count,
colorTransform1, TIFF_IFD_0), env, TAG_COLORMATRIX1, writer);
if (!singleIlluminant) {
camera_metadata_entry entry2 = characteristics.find(ANDROID_SENSOR_COLOR_TRANSFORM2);
BAIL_IF_EMPTY_RET_NULL_SP(entry2, env, TAG_COLORMATRIX2, writer);
int32_t colorTransform2[entry2.count * 2];
ctr = 0;
for(size_t i = 0; i < entry2.count; ++i) {
colorTransform2[ctr++] = entry2.data.r[i].numerator;
colorTransform2[ctr++] = entry2.data.r[i].denominator;
}
BAIL_IF_INVALID_RET_NULL_SP(writer->addEntry(TAG_COLORMATRIX2, entry2.count,
colorTransform2, TIFF_IFD_0), env, TAG_COLORMATRIX2, writer);
}
}
{
// Set calibration transforms
camera_metadata_entry entry1 =
characteristics.find(ANDROID_SENSOR_CALIBRATION_TRANSFORM1);
BAIL_IF_EMPTY_RET_NULL_SP(entry1, env, TAG_CAMERACALIBRATION1, writer);
int32_t calibrationTransform1[entry1.count * 2];
size_t ctr = 0;
for(size_t i = 0; i < entry1.count; ++i) {
calibrationTransform1[ctr++] = entry1.data.r[i].numerator;
calibrationTransform1[ctr++] = entry1.data.r[i].denominator;
}
BAIL_IF_INVALID_RET_NULL_SP(writer->addEntry(TAG_CAMERACALIBRATION1, entry1.count,
calibrationTransform1, TIFF_IFD_0), env, TAG_CAMERACALIBRATION1, writer);
if (!singleIlluminant) {
camera_metadata_entry entry2 =
characteristics.find(ANDROID_SENSOR_CALIBRATION_TRANSFORM2);
BAIL_IF_EMPTY_RET_NULL_SP(entry2, env, TAG_CAMERACALIBRATION2, writer);
int32_t calibrationTransform2[entry2.count * 2];
ctr = 0;
for(size_t i = 0; i < entry2.count; ++i) {
calibrationTransform2[ctr++] = entry2.data.r[i].numerator;
calibrationTransform2[ctr++] = entry2.data.r[i].denominator;
}
BAIL_IF_INVALID_RET_NULL_SP(writer->addEntry(TAG_CAMERACALIBRATION2, entry2.count,
calibrationTransform2, TIFF_IFD_0), env, TAG_CAMERACALIBRATION2, writer);
}
}
{
// Set forward transforms
camera_metadata_entry entry1 =
characteristics.find(ANDROID_SENSOR_FORWARD_MATRIX1);
BAIL_IF_EMPTY_RET_NULL_SP(entry1, env, TAG_FORWARDMATRIX1, writer);
int32_t forwardTransform1[entry1.count * 2];
size_t ctr = 0;
for(size_t i = 0; i < entry1.count; ++i) {
forwardTransform1[ctr++] = entry1.data.r[i].numerator;
forwardTransform1[ctr++] = entry1.data.r[i].denominator;
}
BAIL_IF_INVALID_RET_NULL_SP(writer->addEntry(TAG_FORWARDMATRIX1, entry1.count,
forwardTransform1, TIFF_IFD_0), env, TAG_FORWARDMATRIX1, writer);
if (!singleIlluminant) {
camera_metadata_entry entry2 =
characteristics.find(ANDROID_SENSOR_FORWARD_MATRIX2);
BAIL_IF_EMPTY_RET_NULL_SP(entry2, env, TAG_FORWARDMATRIX2, writer);
int32_t forwardTransform2[entry2.count * 2];
ctr = 0;
for(size_t i = 0; i < entry2.count; ++i) {
forwardTransform2[ctr++] = entry2.data.r[i].numerator;
forwardTransform2[ctr++] = entry2.data.r[i].denominator;
}
BAIL_IF_INVALID_RET_NULL_SP(writer->addEntry(TAG_FORWARDMATRIX2, entry2.count,
forwardTransform2, TIFF_IFD_0), env, TAG_FORWARDMATRIX2, writer);
}
}
{
// Set camera neutral
camera_metadata_entry entry =
results.find(ANDROID_SENSOR_NEUTRAL_COLOR_POINT);
BAIL_IF_EMPTY_RET_NULL_SP(entry, env, TAG_ASSHOTNEUTRAL, writer);
uint32_t cameraNeutral[entry.count * 2];
size_t ctr = 0;
for(size_t i = 0; i < entry.count; ++i) {
cameraNeutral[ctr++] =
static_cast<uint32_t>(entry.data.r[i].numerator);
cameraNeutral[ctr++] =
static_cast<uint32_t>(entry.data.r[i].denominator);
}
BAIL_IF_INVALID_RET_NULL_SP(writer->addEntry(TAG_ASSHOTNEUTRAL, entry.count, cameraNeutral,
TIFF_IFD_0), env, TAG_ASSHOTNEUTRAL, writer);
}
{
// Set dimensions
if (calculateAndSetCrop(env, characteristics, writer) != OK) {
return nullptr;
}
camera_metadata_entry entry =
characteristics.find(ANDROID_SENSOR_INFO_PRE_CORRECTION_ACTIVE_ARRAY_SIZE);
BAIL_IF_EMPTY_RET_NULL_SP(entry, env, TAG_ACTIVEAREA, writer);
uint32_t xmin = static_cast<uint32_t>(entry.data.i32[0]);
uint32_t ymin = static_cast<uint32_t>(entry.data.i32[1]);
uint32_t width = static_cast<uint32_t>(entry.data.i32[2]);
uint32_t height = static_cast<uint32_t>(entry.data.i32[3]);
// If we only have a buffer containing the pre-correction rectangle, ignore the offset
// relative to the pixel array.
if (imageWidth == width && imageHeight == height) {
xmin = 0;
ymin = 0;
}
uint32_t activeArea[] = {ymin, xmin, ymin + height, xmin + width};
BAIL_IF_INVALID_RET_NULL_SP(writer->addEntry(TAG_ACTIVEAREA, 4, activeArea, TIFF_IFD_0),
env, TAG_ACTIVEAREA, writer);
}
{
// Setup unique camera model tag
std::string model = GetProperty("ro.product.model", "");
std::string manufacturer = GetProperty("ro.product.manufacturer", "");
std::string brand = GetProperty("ro.product.brand", "");
String8 cameraModel(model.c_str());
cameraModel += "-";
cameraModel += manufacturer.c_str();
cameraModel += "-";
cameraModel += brand.c_str();
BAIL_IF_INVALID_RET_NULL_SP(writer->addEntry(TAG_UNIQUECAMERAMODEL, cameraModel.size() + 1,
reinterpret_cast<const uint8_t*>(cameraModel.string()), TIFF_IFD_0), env,
TAG_UNIQUECAMERAMODEL, writer);
}
{
// Setup sensor noise model
camera_metadata_entry entry =
results.find(ANDROID_SENSOR_NOISE_PROFILE);
const status_t numPlaneColors = 3;
const status_t numCfaChannels = 4;
uint8_t cfaOut[numCfaChannels];
if ((err = convertCFA(cfaEnum, /*out*/cfaOut)) != OK) {
jniThrowException(env, "java/lang/IllegalArgumentException",
"Invalid CFA from camera characteristics");
return nullptr;
}
double noiseProfile[numPlaneColors * 2];
if (entry.count > 0) {
if (entry.count != numCfaChannels * 2) {
ALOGW("%s: Invalid entry count %zu for noise profile returned "
"in characteristics, no noise profile tag written...",
__FUNCTION__, entry.count);
} else {
if ((err = generateNoiseProfile(entry.data.d, cfaOut, numCfaChannels,
cfaPlaneColor, numPlaneColors, /*out*/ noiseProfile)) == OK) {
BAIL_IF_INVALID_RET_NULL_SP(writer->addEntry(TAG_NOISEPROFILE,
numPlaneColors * 2, noiseProfile, TIFF_IFD_0), env, TAG_NOISEPROFILE,
writer);
} else {
ALOGW("%s: Error converting coefficients for noise profile, no noise profile"
" tag written...", __FUNCTION__);
}
}
} else {
ALOGW("%s: No noise profile found in result metadata. Image quality may be reduced.",
__FUNCTION__);
}
}
{
// Set up opcode List 2
OpcodeListBuilder builder;
status_t err = OK;
// Set up lens shading map
camera_metadata_entry entry1 =
characteristics.find(ANDROID_LENS_INFO_SHADING_MAP_SIZE);
uint32_t lsmWidth = 0;
uint32_t lsmHeight = 0;
if (entry1.count != 0) {
lsmWidth = static_cast<uint32_t>(entry1.data.i32[0]);
lsmHeight = static_cast<uint32_t>(entry1.data.i32[1]);
}
camera_metadata_entry entry2 = results.find(ANDROID_STATISTICS_LENS_SHADING_MAP);
camera_metadata_entry entry =
characteristics.find(ANDROID_SENSOR_INFO_PRE_CORRECTION_ACTIVE_ARRAY_SIZE);
BAIL_IF_EMPTY_RET_NULL_SP(entry, env, TAG_IMAGEWIDTH, writer);
uint32_t xmin = static_cast<uint32_t>(entry.data.i32[0]);
uint32_t ymin = static_cast<uint32_t>(entry.data.i32[1]);
uint32_t width = static_cast<uint32_t>(entry.data.i32[2]);
uint32_t height = static_cast<uint32_t>(entry.data.i32[3]);
if (entry2.count > 0 && entry2.count == lsmWidth * lsmHeight * 4) {
// GainMap rectangle is relative to the active area origin.
err = builder.addGainMapsForMetadata(lsmWidth,
lsmHeight,
0,
0,
height,
width,
opcodeCfaLayout,
entry2.data.f);
if (err != OK) {
ALOGE("%s: Could not add Lens shading map.", __FUNCTION__);
jniThrowRuntimeException(env, "failed to add lens shading map.");
return nullptr;
}
}
// Set up bad pixel correction list
camera_metadata_entry entry3 = characteristics.find(ANDROID_STATISTICS_HOT_PIXEL_MAP);
if ((entry3.count % 2) != 0) {
ALOGE("%s: Hot pixel map contains odd number of values, cannot map to pairs!",
__FUNCTION__);
jniThrowRuntimeException(env, "failed to add hotpixel map.");
return nullptr;
}
// Adjust the bad pixel coordinates to be relative to the origin of the active area DNG tag
std::vector<uint32_t> v;
for (size_t i = 0; i < entry3.count; i += 2) {
int32_t x = entry3.data.i32[i];
int32_t y = entry3.data.i32[i + 1];
x -= static_cast<int32_t>(xmin);
y -= static_cast<int32_t>(ymin);
if (x < 0 || y < 0 || static_cast<uint32_t>(x) >= width ||
static_cast<uint32_t>(y) >= height) {
continue;
}
v.push_back(x);
v.push_back(y);
}
const uint32_t* badPixels = &v[0];
uint32_t badPixelCount = v.size();
if (badPixelCount > 0) {
err = builder.addBadPixelListForMetadata(badPixels, badPixelCount, opcodeCfaLayout);
if (err != OK) {
ALOGE("%s: Could not add hotpixel map.", __FUNCTION__);
jniThrowRuntimeException(env, "failed to add hotpixel map.");
return nullptr;
}
}
size_t listSize = builder.getSize();
uint8_t opcodeListBuf[listSize];
err = builder.buildOpList(opcodeListBuf);
if (err == OK) {
BAIL_IF_INVALID_RET_NULL_SP(writer->addEntry(TAG_OPCODELIST2, listSize, opcodeListBuf,
TIFF_IFD_0), env, TAG_OPCODELIST2, writer);
} else {
ALOGE("%s: Could not build list of opcodes for distortion correction and lens shading"
"map.", __FUNCTION__);
jniThrowRuntimeException(env, "failed to construct opcode list for distortion"
" correction and lens shading map");
return nullptr;
}
}
{
// Set up opcode List 3
OpcodeListBuilder builder;
status_t err = OK;
// Set up rectilinear distortion correction
float distortion[6] {1.f, 0.f, 0.f, 0.f, 0.f, 0.f};
bool gotDistortion = false;
camera_metadata_entry entry4 =
results.find(ANDROID_LENS_INTRINSIC_CALIBRATION);
if (entry4.count == 5) {
float cx = entry4.data.f[/*c_x*/2];
float cy = entry4.data.f[/*c_y*/3];
// Assuming f_x = f_y, or at least close enough.
// Also assuming s = 0, or at least close enough.
float f = entry4.data.f[/*f_x*/0];
camera_metadata_entry entry3 =
results.find(ANDROID_LENS_DISTORTION);
if (entry3.count == 5) {
gotDistortion = true;
float m_x = std::fmaxf(preWidth-1 - cx, cx);
float m_y = std::fmaxf(preHeight-1 - cy, cy);
float m_sq = m_x*m_x + m_y*m_y;
float m = sqrtf(m_sq); // distance to farthest corner from optical center
float f_sq = f * f;
// Conversion factors from Camera2 K factors for new LENS_DISTORTION field
// to DNG spec.
//
// Camera2 / OpenCV assume distortion is applied in a space where focal length
// is factored out, while DNG assumes a normalized space where the distance
// from optical center to the farthest corner is 1.
// Scale from camera2 to DNG spec accordingly.
// distortion[0] is always 1 with the new LENS_DISTORTION field.
const double convCoeff[5] = {
m_sq / f_sq,
pow(m_sq, 2) / pow(f_sq, 2),
pow(m_sq, 3) / pow(f_sq, 3),
m / f,
m / f
};
for (size_t i = 0; i < entry3.count; i++) {
distortion[i+1] = convCoeff[i] * entry3.data.f[i];
}
} else {
entry3 = results.find(ANDROID_LENS_RADIAL_DISTORTION);
if (entry3.count == 6) {
gotDistortion = true;
// Conversion factors from Camera2 K factors to DNG spec. K factors:
//
// Note: these are necessary because our unit system assumes a
// normalized max radius of sqrt(2), whereas the DNG spec's
// WarpRectilinear opcode assumes a normalized max radius of 1.
// Thus, each K coefficient must include the domain scaling
// factor (the DNG domain is scaled by sqrt(2) to emulate the
// domain used by the Camera2 specification).
const double convCoeff[6] = {
sqrt(2),
2 * sqrt(2),
4 * sqrt(2),
8 * sqrt(2),
2,
2
};
for (size_t i = 0; i < entry3.count; i++) {
distortion[i] = entry3.data.f[i] * convCoeff[i];
}
}
}
if (gotDistortion) {
err = builder.addWarpRectilinearForMetadata(distortion, preWidth, preHeight, cx,
cy);
if (err != OK) {
ALOGE("%s: Could not add distortion correction.", __FUNCTION__);
jniThrowRuntimeException(env, "failed to add distortion correction.");
return nullptr;
}
}
}
size_t listSize = builder.getSize();
uint8_t opcodeListBuf[listSize];
err = builder.buildOpList(opcodeListBuf);
if (err == OK) {
BAIL_IF_INVALID_RET_NULL_SP(writer->addEntry(TAG_OPCODELIST3, listSize, opcodeListBuf,
TIFF_IFD_0), env, TAG_OPCODELIST3, writer);
} else {
ALOGE("%s: Could not build list of opcodes for distortion correction and lens shading"
"map.", __FUNCTION__);
jniThrowRuntimeException(env, "failed to construct opcode list for distortion"
" correction and lens shading map");
return nullptr;
}
}
{
// Set up orientation tags.
// Note: There's only one orientation field for the whole file, in IFD0
// The main image and any thumbnails therefore have the same orientation.
uint16_t orientation = nativeContext->getOrientation();
BAIL_IF_INVALID_RET_NULL_SP(writer->addEntry(TAG_ORIENTATION, 1, &orientation, TIFF_IFD_0),
env, TAG_ORIENTATION, writer);
}
if (nativeContext->hasDescription()){
// Set Description
String8 description = nativeContext->getDescription();
size_t len = description.bytes() + 1;
if (writer->addEntry(TAG_IMAGEDESCRIPTION, len,
reinterpret_cast<const uint8_t*>(description.string()), TIFF_IFD_0) != OK) {
jniThrowExceptionFmt(env, "java/lang/IllegalArgumentException",
"Invalid metadata for tag %x", TAG_IMAGEDESCRIPTION);
}
}
if (nativeContext->hasGpsData()) {
// Set GPS tags
GpsData gpsData = nativeContext->getGpsData();
if (!writer->hasIfd(TIFF_IFD_GPSINFO)) {
if (writer->addSubIfd(TIFF_IFD_0, TIFF_IFD_GPSINFO, TiffWriter::GPSINFO) != OK) {
ALOGE("%s: Failed to add GpsInfo IFD %u to IFD %u", __FUNCTION__, TIFF_IFD_GPSINFO,
TIFF_IFD_0);
jniThrowException(env, "java/lang/IllegalStateException", "Failed to add GPSINFO");
return nullptr;
}
}
{
uint8_t version[] = {2, 3, 0, 0};
BAIL_IF_INVALID_RET_NULL_SP(writer->addEntry(TAG_GPSVERSIONID, 4, version,
TIFF_IFD_GPSINFO), env, TAG_GPSVERSIONID, writer);
}
{
BAIL_IF_INVALID_RET_NULL_SP(writer->addEntry(TAG_GPSLATITUDEREF,
GpsData::GPS_REF_LENGTH, gpsData.mLatitudeRef, TIFF_IFD_GPSINFO), env,
TAG_GPSLATITUDEREF, writer);
}
{
BAIL_IF_INVALID_RET_NULL_SP(writer->addEntry(TAG_GPSLONGITUDEREF,
GpsData::GPS_REF_LENGTH, gpsData.mLongitudeRef, TIFF_IFD_GPSINFO), env,
TAG_GPSLONGITUDEREF, writer);
}
{
BAIL_IF_INVALID_RET_NULL_SP(writer->addEntry(TAG_GPSLATITUDE, 3, gpsData.mLatitude,
TIFF_IFD_GPSINFO), env, TAG_GPSLATITUDE, writer);
}
{
BAIL_IF_INVALID_RET_NULL_SP(writer->addEntry(TAG_GPSLONGITUDE, 3, gpsData.mLongitude,
TIFF_IFD_GPSINFO), env, TAG_GPSLONGITUDE, writer);
}
{
BAIL_IF_INVALID_RET_NULL_SP(writer->addEntry(TAG_GPSTIMESTAMP, 3, gpsData.mTimestamp,
TIFF_IFD_GPSINFO), env, TAG_GPSTIMESTAMP, writer);
}
{
BAIL_IF_INVALID_RET_NULL_SP(writer->addEntry(TAG_GPSDATESTAMP,
GpsData::GPS_DATE_LENGTH, gpsData.mDate, TIFF_IFD_GPSINFO), env,
TAG_GPSDATESTAMP, writer);
}
}
if (nativeContext->hasThumbnail()) {
if (!writer->hasIfd(TIFF_IFD_SUB1)) {
if (writer->addSubIfd(TIFF_IFD_0, TIFF_IFD_SUB1) != OK) {
ALOGE("%s: Failed to add SubIFD %u to IFD %u", __FUNCTION__, TIFF_IFD_SUB1,
TIFF_IFD_0);
jniThrowException(env, "java/lang/IllegalStateException", "Failed to add SubIFD");
return nullptr;
}
}
Vector<uint16_t> tagsToMove;
tagsToMove.add(TAG_NEWSUBFILETYPE);
tagsToMove.add(TAG_ACTIVEAREA);
tagsToMove.add(TAG_BITSPERSAMPLE);
tagsToMove.add(TAG_COMPRESSION);
tagsToMove.add(TAG_IMAGEWIDTH);
tagsToMove.add(TAG_IMAGELENGTH);
tagsToMove.add(TAG_PHOTOMETRICINTERPRETATION);
tagsToMove.add(TAG_BLACKLEVEL);
tagsToMove.add(TAG_BLACKLEVELREPEATDIM);
tagsToMove.add(TAG_SAMPLESPERPIXEL);
tagsToMove.add(TAG_PLANARCONFIGURATION);
tagsToMove.add(TAG_CFAREPEATPATTERNDIM);
tagsToMove.add(TAG_CFAPATTERN);
tagsToMove.add(TAG_CFAPLANECOLOR);
tagsToMove.add(TAG_CFALAYOUT);
tagsToMove.add(TAG_XRESOLUTION);
tagsToMove.add(TAG_YRESOLUTION);
tagsToMove.add(TAG_RESOLUTIONUNIT);
tagsToMove.add(TAG_WHITELEVEL);
tagsToMove.add(TAG_DEFAULTSCALE);
tagsToMove.add(TAG_DEFAULTCROPORIGIN);
tagsToMove.add(TAG_DEFAULTCROPSIZE);
tagsToMove.add(TAG_OPCODELIST2);
tagsToMove.add(TAG_OPCODELIST3);
if (moveEntries(writer, TIFF_IFD_0, TIFF_IFD_SUB1, tagsToMove) != OK) {
jniThrowException(env, "java/lang/IllegalStateException", "Failed to move entries");
return nullptr;
}
// Setup thumbnail tags
{
// Set photometric interpretation
uint16_t interpretation = 2; // RGB
BAIL_IF_INVALID_RET_NULL_SP(writer->addEntry(TAG_PHOTOMETRICINTERPRETATION, 1,
&interpretation, TIFF_IFD_0), env, TAG_PHOTOMETRICINTERPRETATION, writer);
}
{
// Set planar configuration
uint16_t config = 1; // Chunky
BAIL_IF_INVALID_RET_NULL_SP(writer->addEntry(TAG_PLANARCONFIGURATION, 1, &config,
TIFF_IFD_0), env, TAG_PLANARCONFIGURATION, writer);
}
{
// Set samples per pixel
uint16_t samples = SAMPLES_PER_RGB_PIXEL;
BAIL_IF_INVALID_RET_NULL_SP(writer->addEntry(TAG_SAMPLESPERPIXEL, 1, &samples,
TIFF_IFD_0), env, TAG_SAMPLESPERPIXEL, writer);
}
{
// Set bits per sample
uint16_t bits[SAMPLES_PER_RGB_PIXEL];
for (int i = 0; i < SAMPLES_PER_RGB_PIXEL; i++) bits[i] = BITS_PER_RGB_SAMPLE;
BAIL_IF_INVALID_RET_NULL_SP(
writer->addEntry(TAG_BITSPERSAMPLE, SAMPLES_PER_RGB_PIXEL, bits, TIFF_IFD_0),
env, TAG_BITSPERSAMPLE, writer);
}
{
// Set subfiletype
uint32_t subfileType = 1; // Thumbnail image
BAIL_IF_INVALID_RET_NULL_SP(writer->addEntry(TAG_NEWSUBFILETYPE, 1, &subfileType,
TIFF_IFD_0), env, TAG_NEWSUBFILETYPE, writer);
}
{
// Set compression
uint16_t compression = 1; // None
BAIL_IF_INVALID_RET_NULL_SP(writer->addEntry(TAG_COMPRESSION, 1, &compression,
TIFF_IFD_0), env, TAG_COMPRESSION, writer);
}
{
// Set dimensions
uint32_t uWidth = nativeContext->getThumbnailWidth();
uint32_t uHeight = nativeContext->getThumbnailHeight();
BAIL_IF_INVALID_RET_NULL_SP(writer->addEntry(TAG_IMAGEWIDTH, 1, &uWidth, TIFF_IFD_0),
env, TAG_IMAGEWIDTH, writer);
BAIL_IF_INVALID_RET_NULL_SP(writer->addEntry(TAG_IMAGELENGTH, 1, &uHeight, TIFF_IFD_0),
env, TAG_IMAGELENGTH, writer);
}
{
// x resolution
uint32_t xres[] = { 72, 1 }; // default 72 ppi
BAIL_IF_INVALID_RET_NULL_SP(writer->addEntry(TAG_XRESOLUTION, 1, xres, TIFF_IFD_0),
env, TAG_XRESOLUTION, writer);
// y resolution
uint32_t yres[] = { 72, 1 }; // default 72 ppi
BAIL_IF_INVALID_RET_NULL_SP(writer->addEntry(TAG_YRESOLUTION, 1, yres, TIFF_IFD_0),
env, TAG_YRESOLUTION, writer);
uint16_t unit = 2; // inches
BAIL_IF_INVALID_RET_NULL_SP(writer->addEntry(TAG_RESOLUTIONUNIT, 1, &unit, TIFF_IFD_0),
env, TAG_RESOLUTIONUNIT, writer);
}
}
if (writer->addStrip(TIFF_IFD_0) != OK) {
ALOGE("%s: Could not setup thumbnail strip tags.", __FUNCTION__);
jniThrowException(env, "java/lang/IllegalStateException",
"Failed to setup thumbnail strip tags.");
return nullptr;
}
if (writer->hasIfd(TIFF_IFD_SUB1)) {
if (writer->addStrip(TIFF_IFD_SUB1) != OK) {
ALOGE("%s: Could not main image strip tags.", __FUNCTION__);
jniThrowException(env, "java/lang/IllegalStateException",
"Failed to setup main image strip tags.");
return nullptr;
}
}
return writer;
}
static void DngCreator_destroy(JNIEnv* env, jobject thiz) {
ALOGV("%s:", __FUNCTION__);
DngCreator_setNativeContext(env, thiz, nullptr);
}
static void DngCreator_nativeSetOrientation(JNIEnv* env, jobject thiz, jint orient) {
ALOGV("%s:", __FUNCTION__);
NativeContext* context = DngCreator_getNativeContext(env, thiz);
if (context == nullptr) {
ALOGE("%s: Failed to initialize DngCreator", __FUNCTION__);
jniThrowException(env, "java/lang/AssertionError",
"setOrientation called with uninitialized DngCreator");
return;
}
uint16_t orientation = static_cast<uint16_t>(orient);
context->setOrientation(orientation);
}
static void DngCreator_nativeSetDescription(JNIEnv* env, jobject thiz, jstring description) {
ALOGV("%s:", __FUNCTION__);
NativeContext* context = DngCreator_getNativeContext(env, thiz);
if (context == nullptr) {
ALOGE("%s: Failed to initialize DngCreator", __FUNCTION__);
jniThrowException(env, "java/lang/AssertionError",
"setDescription called with uninitialized DngCreator");
return;
}
const char* desc = env->GetStringUTFChars(description, nullptr);
context->setDescription(String8(desc));
env->ReleaseStringUTFChars(description, desc);
}
static void DngCreator_nativeSetGpsTags(JNIEnv* env, jobject thiz, jintArray latTag,
jstring latRef, jintArray longTag, jstring longRef, jstring dateTag, jintArray timeTag) {
ALOGV("%s:", __FUNCTION__);
NativeContext* context = DngCreator_getNativeContext(env, thiz);
if (context == nullptr) {
ALOGE("%s: Failed to initialize DngCreator", __FUNCTION__);
jniThrowException(env, "java/lang/AssertionError",
"setGpsTags called with uninitialized DngCreator");
return;
}
GpsData data;
jsize latLen = env->GetArrayLength(latTag);
jsize longLen = env->GetArrayLength(longTag);
jsize timeLen = env->GetArrayLength(timeTag);
if (latLen != GpsData::GPS_VALUE_LENGTH) {
jniThrowException(env, "java/lang/IllegalArgumentException",
"invalid latitude tag length");
return;
} else if (longLen != GpsData::GPS_VALUE_LENGTH) {
jniThrowException(env, "java/lang/IllegalArgumentException",
"invalid longitude tag length");
return;
} else if (timeLen != GpsData::GPS_VALUE_LENGTH) {
jniThrowException(env, "java/lang/IllegalArgumentException",
"invalid time tag length");
return;
}
env->GetIntArrayRegion(latTag, 0, static_cast<jsize>(GpsData::GPS_VALUE_LENGTH),
reinterpret_cast<jint*>(&data.mLatitude));
env->GetIntArrayRegion(longTag, 0, static_cast<jsize>(GpsData::GPS_VALUE_LENGTH),
reinterpret_cast<jint*>(&data.mLongitude));
env->GetIntArrayRegion(timeTag, 0, static_cast<jsize>(GpsData::GPS_VALUE_LENGTH),
reinterpret_cast<jint*>(&data.mTimestamp));
env->GetStringUTFRegion(latRef, 0, 1, reinterpret_cast<char*>(&data.mLatitudeRef));
data.mLatitudeRef[GpsData::GPS_REF_LENGTH - 1] = '\0';
env->GetStringUTFRegion(longRef, 0, 1, reinterpret_cast<char*>(&data.mLongitudeRef));
data.mLongitudeRef[GpsData::GPS_REF_LENGTH - 1] = '\0';
env->GetStringUTFRegion(dateTag, 0, GpsData::GPS_DATE_LENGTH - 1,
reinterpret_cast<char*>(&data.mDate));
data.mDate[GpsData::GPS_DATE_LENGTH - 1] = '\0';
context->setGpsData(data);
}
static void DngCreator_nativeSetThumbnail(JNIEnv* env, jobject thiz, jobject buffer, jint width,
jint height) {
ALOGV("%s:", __FUNCTION__);
NativeContext* context = DngCreator_getNativeContext(env, thiz);
if (context == nullptr) {
ALOGE("%s: Failed to initialize DngCreator", __FUNCTION__);
jniThrowException(env, "java/lang/AssertionError",
"setThumbnail called with uninitialized DngCreator");
return;
}
size_t fullSize = width * height * BYTES_PER_RGB_PIXEL;
jlong capacity = env->GetDirectBufferCapacity(buffer);
if (static_cast<uint64_t>(capacity) != static_cast<uint64_t>(fullSize)) {
jniThrowExceptionFmt(env, "java/lang/AssertionError",
"Invalid size %d for thumbnail, expected size was %d",
capacity, fullSize);
return;
}
uint8_t* pixelBytes = reinterpret_cast<uint8_t*>(env->GetDirectBufferAddress(buffer));
if (pixelBytes == nullptr) {
ALOGE("%s: Could not get native ByteBuffer", __FUNCTION__);
jniThrowException(env, "java/lang/IllegalArgumentException", "Invalid ByteBuffer");
return;
}
if (!context->setThumbnail(pixelBytes, width, height)) {
jniThrowException(env, "java/lang/IllegalStateException",
"Failed to set thumbnail.");
return;
}
}
// TODO: Refactor out common preamble for the two nativeWrite methods.
static void DngCreator_nativeWriteImage(JNIEnv* env, jobject thiz, jobject outStream, jint width,
jint height, jobject inBuffer, jint rowStride, jint pixStride, jlong offset,
jboolean isDirect) {
ALOGV("%s:", __FUNCTION__);
ALOGV("%s: nativeWriteImage called with: width=%d, height=%d, "
"rowStride=%d, pixStride=%d, offset=%" PRId64, __FUNCTION__, width,
height, rowStride, pixStride, offset);
uint32_t rStride = static_cast<uint32_t>(rowStride);
uint32_t pStride = static_cast<uint32_t>(pixStride);
uint32_t uWidth = static_cast<uint32_t>(width);
uint32_t uHeight = static_cast<uint32_t>(height);
uint64_t uOffset = static_cast<uint64_t>(offset);
sp<JniOutputStream> out = new JniOutputStream(env, outStream);
if(env->ExceptionCheck()) {
ALOGE("%s: Could not allocate buffers for output stream", __FUNCTION__);
return;
}
NativeContext* context = DngCreator_getNativeContext(env, thiz);
if (context == nullptr) {
ALOGE("%s: Failed to initialize DngCreator", __FUNCTION__);
jniThrowException(env, "java/lang/AssertionError",
"Write called with uninitialized DngCreator");
return;
}
sp<TiffWriter> writer = DngCreator_setup(env, thiz, uWidth, uHeight);
if (writer.get() == nullptr) {
return;
}
// Validate DNG size
if (!validateDngHeader(env, writer, *(context->getCharacteristics()), width, height)) {
return;
}
sp<JniInputByteBuffer> inBuf;
Vector<StripSource*> sources;
sp<DirectStripSource> thumbnailSource;
uint32_t targetIfd = TIFF_IFD_0;
bool hasThumbnail = writer->hasIfd(TIFF_IFD_SUB1);
if (hasThumbnail) {
ALOGV("%s: Adding thumbnail strip sources.", __FUNCTION__);
uint32_t bytesPerPixel = SAMPLES_PER_RGB_PIXEL * BYTES_PER_RGB_SAMPLE;
uint32_t thumbWidth = context->getThumbnailWidth();
thumbnailSource = new DirectStripSource(env, context->getThumbnail(), TIFF_IFD_0,
thumbWidth, context->getThumbnailHeight(), bytesPerPixel,
bytesPerPixel * thumbWidth, /*offset*/0, BYTES_PER_RGB_SAMPLE,
SAMPLES_PER_RGB_PIXEL);
sources.add(thumbnailSource.get());
targetIfd = TIFF_IFD_SUB1;
}
if (isDirect) {
size_t fullSize = rStride * uHeight;
jlong capacity = env->GetDirectBufferCapacity(inBuffer);
if (capacity < 0 || fullSize + uOffset > static_cast<uint64_t>(capacity)) {
jniThrowExceptionFmt(env, "java/lang/IllegalStateException",
"Invalid size %d for Image, size given in metadata is %d at current stride",
capacity, fullSize);
return;
}
uint8_t* pixelBytes = reinterpret_cast<uint8_t*>(env->GetDirectBufferAddress(inBuffer));
if (pixelBytes == nullptr) {
ALOGE("%s: Could not get native ByteBuffer", __FUNCTION__);
jniThrowException(env, "java/lang/IllegalArgumentException", "Invalid ByteBuffer");
return;
}
ALOGV("%s: Using direct-type strip source.", __FUNCTION__);
DirectStripSource stripSource(env, pixelBytes, targetIfd, uWidth, uHeight, pStride,
rStride, uOffset, BYTES_PER_SAMPLE, SAMPLES_PER_RAW_PIXEL);
sources.add(&stripSource);
status_t ret = OK;
if ((ret = writer->write(out.get(), sources.editArray(), sources.size())) != OK) {
ALOGE("%s: write failed with error %d.", __FUNCTION__, ret);
if (!env->ExceptionCheck()) {
jniThrowExceptionFmt(env, "java/io/IOException",
"Encountered error %d while writing file.", ret);
}
return;
}
} else {
inBuf = new JniInputByteBuffer(env, inBuffer);
ALOGV("%s: Using input-type strip source.", __FUNCTION__);
InputStripSource stripSource(env, *inBuf, targetIfd, uWidth, uHeight, pStride,
rStride, uOffset, BYTES_PER_SAMPLE, SAMPLES_PER_RAW_PIXEL);
sources.add(&stripSource);
status_t ret = OK;
if ((ret = writer->write(out.get(), sources.editArray(), sources.size())) != OK) {
ALOGE("%s: write failed with error %d.", __FUNCTION__, ret);
if (!env->ExceptionCheck()) {
jniThrowExceptionFmt(env, "java/io/IOException",
"Encountered error %d while writing file.", ret);
}
return;
}
}
}
static void DngCreator_nativeWriteInputStream(JNIEnv* env, jobject thiz, jobject outStream,
jobject inStream, jint width, jint height, jlong offset) {
ALOGV("%s:", __FUNCTION__);
uint32_t rowStride = width * BYTES_PER_SAMPLE;
uint32_t pixStride = BYTES_PER_SAMPLE;
uint32_t uWidth = static_cast<uint32_t>(width);
uint32_t uHeight = static_cast<uint32_t>(height);
uint64_t uOffset = static_cast<uint32_t>(offset);
ALOGV("%s: nativeWriteInputStream called with: width=%d, height=%d, "
"rowStride=%d, pixStride=%d, offset=%" PRId64, __FUNCTION__, width,
height, rowStride, pixStride, offset);
sp<JniOutputStream> out = new JniOutputStream(env, outStream);
if (env->ExceptionCheck()) {
ALOGE("%s: Could not allocate buffers for output stream", __FUNCTION__);
return;
}
NativeContext* context = DngCreator_getNativeContext(env, thiz);
if (context == nullptr) {
ALOGE("%s: Failed to initialize DngCreator", __FUNCTION__);
jniThrowException(env, "java/lang/AssertionError",
"Write called with uninitialized DngCreator");
return;
}
sp<TiffWriter> writer = DngCreator_setup(env, thiz, uWidth, uHeight);
if (writer.get() == nullptr) {
return;
}
// Validate DNG size
if (!validateDngHeader(env, writer, *(context->getCharacteristics()), width, height)) {
return;
}
sp<DirectStripSource> thumbnailSource;
uint32_t targetIfd = TIFF_IFD_0;
bool hasThumbnail = writer->hasIfd(TIFF_IFD_SUB1);
Vector<StripSource*> sources;
if (hasThumbnail) {
ALOGV("%s: Adding thumbnail strip sources.", __FUNCTION__);
uint32_t bytesPerPixel = SAMPLES_PER_RGB_PIXEL * BYTES_PER_RGB_SAMPLE;
uint32_t width = context->getThumbnailWidth();
thumbnailSource = new DirectStripSource(env, context->getThumbnail(), TIFF_IFD_0,
width, context->getThumbnailHeight(), bytesPerPixel,
bytesPerPixel * width, /*offset*/0, BYTES_PER_RGB_SAMPLE,
SAMPLES_PER_RGB_PIXEL);
sources.add(thumbnailSource.get());
targetIfd = TIFF_IFD_SUB1;
}
sp<JniInputStream> in = new JniInputStream(env, inStream);
ALOGV("%s: Using input-type strip source.", __FUNCTION__);
InputStripSource stripSource(env, *in, targetIfd, uWidth, uHeight, pixStride,
rowStride, uOffset, BYTES_PER_SAMPLE, SAMPLES_PER_RAW_PIXEL);
sources.add(&stripSource);
status_t ret = OK;
if ((ret = writer->write(out.get(), sources.editArray(), sources.size())) != OK) {
ALOGE("%s: write failed with error %d.", __FUNCTION__, ret);
if (!env->ExceptionCheck()) {
jniThrowExceptionFmt(env, "java/io/IOException",
"Encountered error %d while writing file.", ret);
}
return;
}
}
} /*extern "C" */
static const JNINativeMethod gDngCreatorMethods[] = {
{"nativeClassInit", "()V", (void*) DngCreator_nativeClassInit},
{"nativeInit", "(Landroid/hardware/camera2/impl/CameraMetadataNative;"
"Landroid/hardware/camera2/impl/CameraMetadataNative;Ljava/lang/String;)V",
(void*) DngCreator_init},
{"nativeDestroy", "()V", (void*) DngCreator_destroy},
{"nativeSetOrientation", "(I)V", (void*) DngCreator_nativeSetOrientation},
{"nativeSetDescription", "(Ljava/lang/String;)V", (void*) DngCreator_nativeSetDescription},
{"nativeSetGpsTags", "([ILjava/lang/String;[ILjava/lang/String;Ljava/lang/String;[I)V",
(void*) DngCreator_nativeSetGpsTags},
{"nativeSetThumbnail","(Ljava/nio/ByteBuffer;II)V", (void*) DngCreator_nativeSetThumbnail},
{"nativeWriteImage", "(Ljava/io/OutputStream;IILjava/nio/ByteBuffer;IIJZ)V",
(void*) DngCreator_nativeWriteImage},
{"nativeWriteInputStream", "(Ljava/io/OutputStream;Ljava/io/InputStream;IIJ)V",
(void*) DngCreator_nativeWriteInputStream},
};
int register_android_hardware_camera2_DngCreator(JNIEnv *env) {
return RegisterMethodsOrDie(env,
"android/hardware/camera2/DngCreator", gDngCreatorMethods, NELEM(gDngCreatorMethods));
}