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libraw_wrapper.cpp
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#include <vector>
#include <string>
#include <stdexcept>
#include <iostream>
#include <cstring>
// Emscripten Embind
#include <emscripten/bind.h>
// LibRaw includes
#include "libraw/libraw.h"
using namespace emscripten;
class WASMLibRaw {
public:
WASMLibRaw() {
processor_ = new LibRaw();
}
~WASMLibRaw() {
if (processor_) {
cleanupParamsStrings();
delete processor_;
processor_ = nullptr;
}
}
void open(val jsBuffer, val settings) {
if (!processor_) {
throw std::runtime_error("LibRaw not initialized");
}
// 1) Convert the JS buffer (Uint8Array) to a C++ std::vector<uint8_t>.
std::vector<uint8_t> buffer = toNativeVector(jsBuffer);
applySettings(settings);
int ret = processor_->open_buffer((void*)buffer.data(), buffer.size());
if (ret != LIBRAW_SUCCESS) {
throw std::runtime_error("LibRaw: open_buffer() failed with code " + std::to_string(ret));
}
}
val metadata(bool fullOutput=false) {
if (!processor_) {
return val::undefined();
}
val meta = val::object();
// --------------------------------------------------------------------
// 1) Basic fields: sizes, camera info, etc.
// --------------------------------------------------------------------
unsigned orientedWidth = processor_->imgdata.sizes.width;
unsigned orientedHeight = processor_->imgdata.sizes.height;
int flipCode = processor_->imgdata.sizes.flip; // 0..7
if (flipCode == 5 || flipCode == 6 || flipCode == 7) {// rotations of 90/270:
std::swap(orientedWidth, orientedHeight);
}
meta.set("width", orientedWidth);
meta.set("height", orientedHeight);
meta.set("raw_width", processor_->imgdata.sizes.raw_width);
meta.set("raw_height", processor_->imgdata.sizes.raw_height);
meta.set("top_margin", processor_->imgdata.sizes.top_margin);
meta.set("left_margin", processor_->imgdata.sizes.left_margin);
// Basic camera info
meta.set("camera_make", std::string(processor_->imgdata.idata.make));
meta.set("camera_model", std::string(processor_->imgdata.idata.model));
// EXIF-like data
meta.set("iso_speed", processor_->imgdata.other.iso_speed);
meta.set("shutter", processor_->imgdata.other.shutter);
meta.set("aperture", processor_->imgdata.other.aperture);
meta.set("focal_len", processor_->imgdata.other.focal_len);
meta.set("timestamp", double(processor_->imgdata.other.timestamp));
meta.set("shot_order", processor_->imgdata.other.shot_order);
meta.set("desc", std::string(processor_->imgdata.other.desc));
meta.set("artist", std::string(processor_->imgdata.other.artist));
// Thumbnail info
meta.set("thumb_width", processor_->imgdata.thumbnail.twidth);
meta.set("thumb_height", processor_->imgdata.thumbnail.theight);
// Cast enum to int so we don't need to register it
meta.set("thumb_format",
static_cast<int>(processor_->imgdata.thumbnail.tformat));
if(fullOutput) {
// --------------------------------------------------------------------
// 2) Color data (imgdata.color)
// --------------------------------------------------------------------
const libraw_colordata_t &c = processor_->imgdata.color;
val colorData = val::object();
colorData.set("black", c.black);
colorData.set("data_maximum", c.data_maximum);
colorData.set("maximum", c.maximum);
colorData.set("fmaximum", c.fmaximum);
colorData.set("fnorm", c.fnorm);
{
val camMulArr = val::array();
for (int i = 0; i < 4; i++) {
camMulArr.set(i, c.cam_mul[i]);
}
colorData.set("cam_mul", camMulArr);
}
{
val preMulArr = val::array();
for (int i = 0; i < 4; i++) {
preMulArr.set(i, c.pre_mul[i]);
}
colorData.set("pre_mul", preMulArr);
}
// c.rgb_cam[3][4], c.cam_xyz[4][3], etc. can also be copied if needed.
colorData.set("flash_used", c.flash_used);
colorData.set("canon_ev", c.canon_ev);
colorData.set("model2", std::string(c.model2));
colorData.set("UniqueCameraModel", std::string(c.UniqueCameraModel));
colorData.set("LocalizedCameraModel",
std::string(c.LocalizedCameraModel));
colorData.set("ImageUniqueID", std::string(c.ImageUniqueID));
colorData.set("RawDataUniqueID", std::string(c.RawDataUniqueID));
colorData.set("raw_bps", (int)c.raw_bps);
colorData.set("ExifColorSpace", c.ExifColorSpace);
// dng_color, dng_levels, etc. also here if needed
meta.set("color_data", colorData);
// --------------------------------------------------------------------
// 3) Common metadata (imgdata.metadata)
// --------------------------------------------------------------------
const libraw_metadata_common_t &mcom = processor_->imgdata.makernotes.common;
val metaCommon = val::object();
metaCommon.set("FlashEC", mcom.FlashEC);
metaCommon.set("FlashGN", mcom.FlashGN);
metaCommon.set("CameraTemperature", mcom.CameraTemperature);
metaCommon.set("SensorTemperature", mcom.SensorTemperature);
metaCommon.set("SensorTemperature2", mcom.SensorTemperature2);
metaCommon.set("LensTemperature", mcom.LensTemperature);
metaCommon.set("AmbientTemperature", mcom.AmbientTemperature);
metaCommon.set("BatteryTemperature", mcom.BatteryTemperature);
metaCommon.set("exifAmbientTemperature", mcom.exifAmbientTemperature);
metaCommon.set("exifHumidity", mcom.exifHumidity);
metaCommon.set("exifPressure", mcom.exifPressure);
metaCommon.set("exifWaterDepth", mcom.exifWaterDepth);
metaCommon.set("exifAcceleration", mcom.exifAcceleration);
metaCommon.set("exifCameraElevationAngle", mcom.exifCameraElevationAngle);
metaCommon.set("real_ISO", mcom.real_ISO);
metaCommon.set("exifExposureIndex", mcom.exifExposureIndex);
metaCommon.set("ColorSpace", (int)mcom.ColorSpace);
metaCommon.set("firmware", std::string(mcom.firmware));
metaCommon.set("ExposureCalibrationShift", mcom.ExposureCalibrationShift);
// AF info data
{
val afArray = val::array();
for (int i = 0; i < mcom.afcount; i++) {
val afItem = val::object();
const libraw_afinfo_item_t &afdata = mcom.afdata[i];
afItem.set("AFInfoData_tag", afdata.AFInfoData_tag);
afItem.set("AFInfoData_order", afdata.AFInfoData_order);
afItem.set("AFInfoData_version", afdata.AFInfoData_version);
afItem.set("AFInfoData_length", afdata.AFInfoData_length);
// afdata.AFInfoData is a raw pointer
// We skip showing contents unless you want to copy them.
afArray.set(i, afItem);
}
metaCommon.set("afdata", afArray);
}
meta.set("metadata_common", metaCommon);
// --------------------------------------------------------------------
// 4) MakerNotes for the brand (conditional)
// We store them in a property named after the brand, e.g. `canon`,
// `nikon`, `sony`, etc.
// --------------------------------------------------------------------
std::string makeStr(processor_->imgdata.idata.make);
std::string makeLower = makeStr;
std::transform(makeLower.begin(), makeLower.end(), makeLower.begin(), [](unsigned char c){ return std::tolower(c); });
// ================ CANON ================
if (makeLower.find("canon") != std::string::npos)
{
val canonObj = val::object();
const libraw_canon_makernotes_t &cCanon =
processor_->imgdata.makernotes.canon;
canonObj.set("ColorDataVer", cCanon.ColorDataVer);
canonObj.set("ColorDataSubVer", cCanon.ColorDataSubVer);
canonObj.set("SpecularWhiteLevel", cCanon.SpecularWhiteLevel);
canonObj.set("NormalWhiteLevel", cCanon.NormalWhiteLevel);
{
val arr = val::array();
for (int i = 0; i < 4; i++) {
arr.set(i, cCanon.ChannelBlackLevel[i]);
}
canonObj.set("ChannelBlackLevel", arr);
}
canonObj.set("AverageBlackLevel", cCanon.AverageBlackLevel);
{
val arr = val::array();
for (int i = 0; i < 4; i++) {
arr.set(i, cCanon.multishot[i]);
}
canonObj.set("multishot", arr);
}
canonObj.set("MeteringMode", cCanon.MeteringMode);
canonObj.set("SpotMeteringMode", cCanon.SpotMeteringMode);
canonObj.set("FlashMeteringMode", (int)cCanon.FlashMeteringMode);
canonObj.set("FlashExposureLock", cCanon.FlashExposureLock);
canonObj.set("ExposureMode", cCanon.ExposureMode);
canonObj.set("AESetting", cCanon.AESetting);
canonObj.set("ImageStabilization", cCanon.ImageStabilization);
canonObj.set("FlashMode", cCanon.FlashMode);
canonObj.set("FlashActivity", cCanon.FlashActivity);
canonObj.set("FlashBits", cCanon.FlashBits);
canonObj.set("ManualFlashOutput", cCanon.ManualFlashOutput);
canonObj.set("FlashOutput", cCanon.FlashOutput);
canonObj.set("FlashGuideNumber", cCanon.FlashGuideNumber);
canonObj.set("ContinuousDrive", cCanon.ContinuousDrive);
canonObj.set("SensorWidth", cCanon.SensorWidth);
canonObj.set("SensorHeight", cCanon.SensorHeight);
canonObj.set("AFMicroAdjMode", cCanon.AFMicroAdjMode);
canonObj.set("AFMicroAdjValue", cCanon.AFMicroAdjValue);
canonObj.set("MakernotesFlip", cCanon.MakernotesFlip);
canonObj.set("RecordMode", cCanon.RecordMode);
canonObj.set("SRAWQuality", cCanon.SRAWQuality);
canonObj.set("wbi", (unsigned)cCanon.wbi);
canonObj.set("RF_lensID", cCanon.RF_lensID);
canonObj.set("AutoLightingOptimizer", cCanon.AutoLightingOptimizer);
canonObj.set("HighlightTonePriority", cCanon.HighlightTonePriority);
canonObj.set("Quality", cCanon.Quality);
canonObj.set("CanonLog", cCanon.CanonLog);
{
val arr = val::array();
for (int i = 0; i < 2; i++) {
arr.set(i, cCanon.ISOgain[i]);
}
canonObj.set("ISOgain", arr);
}
meta.set("canon", canonObj);
}
// ================ NIKON ================
else if (makeLower.find("nikon") != std::string::npos)
{
val nikonObj = val::object();
const libraw_nikon_makernotes_t &cNikon =
processor_->imgdata.makernotes.nikon;
nikonObj.set("ExposureBracketValue", cNikon.ExposureBracketValue);
nikonObj.set("ActiveDLighting", cNikon.ActiveDLighting);
nikonObj.set("ShootingMode", (int)cNikon.ShootingMode);
{
val arr = val::array();
for (int i = 0; i < 7; i++) {
arr.set(i, cNikon.ImageStabilization[i]);
}
nikonObj.set("ImageStabilization", arr);
}
nikonObj.set("VibrationReduction", (int)cNikon.VibrationReduction);
nikonObj.set("FlashSetting", std::string(cNikon.FlashSetting));
nikonObj.set("FlashType", std::string(cNikon.FlashType));
{
val arr = val::array();
for (int i = 0; i < 4; i++) {
arr.set(i, cNikon.FlashExposureCompensation[i]);
}
nikonObj.set("FlashExposureCompensation", arr);
}
{
val arr = val::array();
for (int i = 0; i < 4; i++) {
arr.set(i, cNikon.ExternalFlashExposureComp[i]);
}
nikonObj.set("ExternalFlashExposureComp", arr);
}
nikonObj.set("FlashExposureBracketValue0",
cNikon.FlashExposureBracketValue[0]);
nikonObj.set("FlashExposureBracketValue1",
cNikon.FlashExposureBracketValue[1]);
nikonObj.set("FlashExposureBracketValue2",
cNikon.FlashExposureBracketValue[2]);
nikonObj.set("FlashExposureBracketValue3",
cNikon.FlashExposureBracketValue[3]);
nikonObj.set("FlashMode", (int)cNikon.FlashMode);
nikonObj.set("FlashExposureCompensation2",
(int)cNikon.FlashExposureCompensation2);
nikonObj.set("FlashExposureCompensation3",
(int)cNikon.FlashExposureCompensation3);
nikonObj.set("FlashExposureCompensation4",
(int)cNikon.FlashExposureCompensation4);
nikonObj.set("FlashSource", (int)cNikon.FlashSource);
nikonObj.set("FlashFirmware0", (int)cNikon.FlashFirmware[0]);
nikonObj.set("FlashFirmware1", (int)cNikon.FlashFirmware[1]);
nikonObj.set("ExternalFlashFlags", (int)cNikon.ExternalFlashFlags);
nikonObj.set("FlashControlCommanderMode",(int)cNikon.FlashControlCommanderMode);
nikonObj.set("FlashOutputAndCompensation",(int)cNikon.FlashOutputAndCompensation);
nikonObj.set("FlashFocalLength", (int)cNikon.FlashFocalLength);
nikonObj.set("FlashGNDistance", (int)cNikon.FlashGNDistance);
{
val arr = val::array();
for (int i = 0; i < 4; i++) {
arr.set(i, (int)cNikon.FlashGroupOutputAndCompensation[i]);
}
nikonObj.set("FlashGroupOutputAndCompensation", arr);
}
nikonObj.set("FlashGroupControlMode0", (int)cNikon.FlashGroupControlMode[0]);
nikonObj.set("FlashGroupControlMode1", (int)cNikon.FlashGroupControlMode[1]);
nikonObj.set("FlashGroupControlMode2", (int)cNikon.FlashGroupControlMode[2]);
nikonObj.set("FlashGroupControlMode3", (int)cNikon.FlashGroupControlMode[3]);
nikonObj.set("FlashColorFilter", (int)cNikon.FlashColorFilter);
nikonObj.set("NEFCompression", (int)cNikon.NEFCompression);
nikonObj.set("ExposureMode", cNikon.ExposureMode);
nikonObj.set("ExposureProgram", cNikon.ExposureProgram);
nikonObj.set("nMEshots", cNikon.nMEshots);
nikonObj.set("MEgainOn", (int)cNikon.MEgainOn);
{
val arr = val::array();
for (int i = 0; i < 4; i++) {
arr.set(i, cNikon.ME_WB[i]);
}
nikonObj.set("ME_WB", arr);
}
nikonObj.set("AFFineTune", (int)cNikon.AFFineTune);
nikonObj.set("AFFineTuneIndex", (int)cNikon.AFFineTuneIndex);
nikonObj.set("AFFineTuneAdj", (int)cNikon.AFFineTuneAdj);
nikonObj.set("LensDataVersion", cNikon.LensDataVersion);
nikonObj.set("FlashInfoVersion", cNikon.FlashInfoVersion);
nikonObj.set("ColorBalanceVersion", cNikon.ColorBalanceVersion);
nikonObj.set("key", (int)cNikon.key);
{
val arr = val::array();
for (int i = 0; i < 4; i++) {
arr.set(i, cNikon.NEFBitDepth[i]);
}
nikonObj.set("NEFBitDepth", arr);
}
nikonObj.set("HighSpeedCropFormat", (int)cNikon.HighSpeedCropFormat);
val hsc = val::object();
hsc.set("cleft", cNikon.SensorHighSpeedCrop.cleft);
hsc.set("ctop", cNikon.SensorHighSpeedCrop.ctop);
hsc.set("cwidth", cNikon.SensorHighSpeedCrop.cwidth);
hsc.set("cheight", cNikon.SensorHighSpeedCrop.cheight);
nikonObj.set("SensorHighSpeedCrop", hsc);
nikonObj.set("SensorWidth", (int)cNikon.SensorWidth);
nikonObj.set("SensorHeight", (int)cNikon.SensorHeight);
nikonObj.set("Active_D_Lighting", (int)cNikon.Active_D_Lighting);
nikonObj.set("ShotInfoVersion", cNikon.ShotInfoVersion);
nikonObj.set("MakernotesFlip", cNikon.MakernotesFlip);
nikonObj.set("RollAngle", cNikon.RollAngle);
nikonObj.set("PitchAngle", cNikon.PitchAngle);
nikonObj.set("YawAngle", cNikon.YawAngle);
meta.set("nikon", nikonObj);
}
// ================ FUJI ================
else if (makeLower.find("fuji") != std::string::npos ||
makeLower.find("fujifilm") != std::string::npos)
{
val fujiObj = val::object();
const libraw_fuji_info_t &cFuji =
processor_->imgdata.makernotes.fuji;
fujiObj.set("ExpoMidPointShift", cFuji.ExpoMidPointShift);
fujiObj.set("DynamicRange", cFuji.DynamicRange);
fujiObj.set("FilmMode", cFuji.FilmMode);
fujiObj.set("DynamicRangeSetting", cFuji.DynamicRangeSetting);
fujiObj.set("DevelopmentDynamicRange", cFuji.DevelopmentDynamicRange);
fujiObj.set("AutoDynamicRange", cFuji.AutoDynamicRange);
fujiObj.set("DRangePriority", cFuji.DRangePriority);
fujiObj.set("DRangePriorityAuto", cFuji.DRangePriorityAuto);
fujiObj.set("DRangePriorityFixed", cFuji.DRangePriorityFixed);
fujiObj.set("BrightnessCompensation", cFuji.BrightnessCompensation);
fujiObj.set("FocusMode", cFuji.FocusMode);
fujiObj.set("AFMode", cFuji.AFMode);
{
val arr = val::array();
arr.set(0, cFuji.FocusPixel[0]);
arr.set(1, cFuji.FocusPixel[1]);
fujiObj.set("FocusPixel", arr);
}
fujiObj.set("PrioritySettings", cFuji.PrioritySettings);
fujiObj.set("FocusSettings", cFuji.FocusSettings);
fujiObj.set("AF_C_Settings", cFuji.AF_C_Settings);
fujiObj.set("FocusWarning", cFuji.FocusWarning);
{
val arr = val::array();
arr.set(0, cFuji.ImageStabilization[0]);
arr.set(1, cFuji.ImageStabilization[1]);
arr.set(2, cFuji.ImageStabilization[2]);
fujiObj.set("ImageStabilization", arr);
}
fujiObj.set("FlashMode", cFuji.FlashMode);
fujiObj.set("WB_Preset", cFuji.WB_Preset);
fujiObj.set("ShutterType", cFuji.ShutterType);
fujiObj.set("ExrMode", cFuji.ExrMode);
fujiObj.set("Macro", (int)cFuji.Macro);
fujiObj.set("Rating", (int)cFuji.Rating);
fujiObj.set("CropMode", (int)cFuji.CropMode);
fujiObj.set("SerialSignature", std::string(cFuji.SerialSignature));
fujiObj.set("SensorID", std::string(cFuji.SensorID));
fujiObj.set("RAFVersion", std::string(cFuji.RAFVersion));
fujiObj.set("RAFDataGeneration", cFuji.RAFDataGeneration);
fujiObj.set("RAFDataVersion", cFuji.RAFDataVersion);
fujiObj.set("isTSNERDTS", cFuji.isTSNERDTS);
fujiObj.set("DriveMode", (int)cFuji.DriveMode);
{
val arr = val::array();
for (int i = 0; i < 9; i++) {
arr.set(i, cFuji.BlackLevel[i]);
}
fujiObj.set("BlackLevel", arr);
}
{
val arr = val::array();
for (int i = 0; i < 32; i++) {
arr.set(i, cFuji.RAFData_ImageSizeTable[i]);
}
fujiObj.set("RAFData_ImageSizeTable", arr);
}
fujiObj.set("AutoBracketing", cFuji.AutoBracketing);
fujiObj.set("SequenceNumber", cFuji.SequenceNumber);
fujiObj.set("SeriesLength", cFuji.SeriesLength);
{
val arr = val::array();
arr.set(0, cFuji.PixelShiftOffset[0]);
arr.set(1, cFuji.PixelShiftOffset[1]);
fujiObj.set("PixelShiftOffset", arr);
}
fujiObj.set("ImageCount", cFuji.ImageCount);
meta.set("fuji", fujiObj);
}
// ================ SONY ================
else if (makeLower.find("sony") != std::string::npos)
{
val sonyObj = val::object();
const libraw_sony_info_t &cSony =
processor_->imgdata.makernotes.sony;
sonyObj.set("CameraType", (int)cSony.CameraType);
sonyObj.set("Sony0x9400_version", (int)cSony.Sony0x9400_version);
sonyObj.set("Sony0x9400_ReleaseMode2",
(int)cSony.Sony0x9400_ReleaseMode2);
sonyObj.set("Sony0x9400_SequenceImageNumber",
cSony.Sony0x9400_SequenceImageNumber);
sonyObj.set("Sony0x9400_SequenceLength1",
(int)cSony.Sony0x9400_SequenceLength1);
sonyObj.set("Sony0x9400_SequenceFileNumber",
cSony.Sony0x9400_SequenceFileNumber);
sonyObj.set("Sony0x9400_SequenceLength2",
(int)cSony.Sony0x9400_SequenceLength2);
sonyObj.set("AFAreaModeSetting", (int)cSony.AFAreaModeSetting);
sonyObj.set("AFAreaMode", (int)cSony.AFAreaMode);
{
val arr = val::array();
arr.set(0, cSony.FlexibleSpotPosition[0]);
arr.set(1, cSony.FlexibleSpotPosition[1]);
sonyObj.set("FlexibleSpotPosition", arr);
}
sonyObj.set("AFPointSelected", (int)cSony.AFPointSelected);
sonyObj.set("AFPointSelected_0x201e",(int)cSony.AFPointSelected_0x201e);
sonyObj.set("AFType", (int)cSony.AFType);
{
val arr = val::array();
arr.set(0, cSony.FocusLocation[0]);
arr.set(1, cSony.FocusLocation[1]);
arr.set(2, cSony.FocusLocation[2]);
arr.set(3, cSony.FocusLocation[3]);
sonyObj.set("FocusLocation", arr);
}
sonyObj.set("FocusPosition", (int)cSony.FocusPosition);
sonyObj.set("AFMicroAdjValue", (int)cSony.AFMicroAdjValue);
sonyObj.set("AFMicroAdjOn", (int)cSony.AFMicroAdjOn);
sonyObj.set("AFMicroAdjRegisteredLenses",
(int)cSony.AFMicroAdjRegisteredLenses);
sonyObj.set("VariableLowPassFilter",
(int)cSony.VariableLowPassFilter);
sonyObj.set("LongExposureNoiseReduction",
cSony.LongExposureNoiseReduction);
sonyObj.set("HighISONoiseReduction",
(int)cSony.HighISONoiseReduction);
{
val arr = val::array();
arr.set(0, cSony.HDR[0]);
arr.set(1, cSony.HDR[1]);
sonyObj.set("HDR", arr);
}
sonyObj.set("group2010", (int)cSony.group2010);
sonyObj.set("group9050", (int)cSony.group9050);
sonyObj.set("real_iso_offset", (int)cSony.real_iso_offset);
sonyObj.set("MeteringMode_offset",(int)cSony.MeteringMode_offset);
sonyObj.set("ExposureProgram_offset",(int)cSony.ExposureProgram_offset);
sonyObj.set("ReleaseMode2_offset",(int)cSony.ReleaseMode2_offset);
sonyObj.set("MinoltaCamID", cSony.MinoltaCamID);
sonyObj.set("firmware", cSony.firmware);
sonyObj.set("ImageCount3_offset",(int)cSony.ImageCount3_offset);
sonyObj.set("ImageCount3", cSony.ImageCount3);
sonyObj.set("ElectronicFrontCurtainShutter",
cSony.ElectronicFrontCurtainShutter);
sonyObj.set("MeteringMode2", (int)cSony.MeteringMode2);
sonyObj.set("SonyDateTime", std::string(cSony.SonyDateTime));
sonyObj.set("ShotNumberSincePowerUp",
cSony.ShotNumberSincePowerUp);
sonyObj.set("PixelShiftGroupPrefix", cSony.PixelShiftGroupPrefix);
sonyObj.set("PixelShiftGroupID", cSony.PixelShiftGroupID);
sonyObj.set("nShotsInPixelShiftGroup", (int)cSony.nShotsInPixelShiftGroup);
sonyObj.set("numInPixelShiftGroup", (int)cSony.numInPixelShiftGroup);
sonyObj.set("prd_ImageHeight", cSony.prd_ImageHeight);
sonyObj.set("prd_ImageWidth", cSony.prd_ImageWidth);
sonyObj.set("prd_Total_bps", cSony.prd_Total_bps);
sonyObj.set("prd_Active_bps", cSony.prd_Active_bps);
sonyObj.set("prd_StorageMethod", cSony.prd_StorageMethod);
sonyObj.set("prd_BayerPattern", cSony.prd_BayerPattern);
sonyObj.set("SonyRawFileType", (int)cSony.SonyRawFileType);
sonyObj.set("RAWFileType", (int)cSony.RAWFileType);
sonyObj.set("RawSizeType", (int)cSony.RawSizeType);
sonyObj.set("Quality", cSony.Quality);
sonyObj.set("FileFormat", cSony.FileFormat);
sonyObj.set("MetaVersion", std::string(cSony.MetaVersion));
meta.set("sony", sonyObj);
}
// ================ PANASONIC ================
else if (makeLower.find("panasonic") != std::string::npos)
{
val panObj = val::object();
const libraw_panasonic_makernotes_t &cPan =
processor_->imgdata.makernotes.panasonic;
panObj.set("Compression", (int)cPan.Compression);
panObj.set("BlackLevelDim", (int)cPan.BlackLevelDim);
{
val arr = val::array();
for (int i = 0; i < 8; i++) {
arr.set(i, cPan.BlackLevel[i]);
}
panObj.set("BlackLevel", arr);
}
panObj.set("Multishot", cPan.Multishot);
panObj.set("gamma", cPan.gamma);
{
val arr = val::array();
arr.set(0, cPan.HighISOMultiplier[0]);
arr.set(1, cPan.HighISOMultiplier[1]);
arr.set(2, cPan.HighISOMultiplier[2]);
panObj.set("HighISOMultiplier", arr);
}
panObj.set("FocusStepNear", cPan.FocusStepNear);
panObj.set("FocusStepCount", cPan.FocusStepCount);
panObj.set("ZoomPosition", cPan.ZoomPosition);
panObj.set("LensManufacturer", cPan.LensManufacturer);
meta.set("panasonic", panObj);
}
// ================ OLYMPUS ================
else if (makeLower.find("olympus") != std::string::npos)
{
val olyObj = val::object();
const libraw_olympus_makernotes_t &cOly =
processor_->imgdata.makernotes.olympus;
{
val arr = val::array();
arr.set(0, cOly.CameraType2[0]);
arr.set(1, cOly.CameraType2[1]);
arr.set(2, cOly.CameraType2[2]);
arr.set(3, cOly.CameraType2[3]);
arr.set(4, cOly.CameraType2[4]);
arr.set(5, cOly.CameraType2[5]);
olyObj.set("CameraType2", arr);
}
olyObj.set("ValidBits", (int)cOly.ValidBits);
{
val arr = val::array();
arr.set(0, cOly.DriveMode[0]);
arr.set(1, cOly.DriveMode[1]);
arr.set(2, cOly.DriveMode[2]);
arr.set(3, cOly.DriveMode[3]);
arr.set(4, cOly.DriveMode[4]);
olyObj.set("DriveMode", arr);
}
olyObj.set("ColorSpace", (int)cOly.ColorSpace);
{
val arr = val::array();
arr.set(0, cOly.FocusMode[0]);
arr.set(1, cOly.FocusMode[1]);
olyObj.set("FocusMode", arr);
}
olyObj.set("AutoFocus", (int)cOly.AutoFocus);
olyObj.set("AFPoint", (int)cOly.AFPoint);
{
val arr = val::array();
for (int i = 0; i < 64; i++) {
arr.set(i, cOly.AFAreas[i]);
}
olyObj.set("AFAreas", arr);
}
{
val arr = val::array();
arr.set(0, cOly.AFPointSelected[0]);
arr.set(1, cOly.AFPointSelected[1]);
olyObj.set("AFPointSelected", arr);
}
olyObj.set("AFResult", (int)cOly.AFResult);
olyObj.set("AFFineTune", (int)cOly.AFFineTune);
{
val arr = val::array();
arr.set(0, (int)cOly.AFFineTuneAdj[0]);
arr.set(1, (int)cOly.AFFineTuneAdj[1]);
arr.set(2, (int)cOly.AFFineTuneAdj[2]);
olyObj.set("AFFineTuneAdj", arr);
}
// Many more fields exist in the struct if you want them all.
olyObj.set("AspectFrameLeft", (int)cOly.AspectFrame[0]);
olyObj.set("AspectFrameTop", (int)cOly.AspectFrame[1]);
olyObj.set("AspectFrameWidth", (int)cOly.AspectFrame[2]);
olyObj.set("AspectFrameHeight",(int)cOly.AspectFrame[3]);
olyObj.set("Panorama_mode", cOly.Panorama_mode);
olyObj.set("Panorama_frameNum",cOly.Panorama_frameNum);
meta.set("olympus", olyObj);
}
// ================ PENTAX ================
else if (makeLower.find("pentax") != std::string::npos)
{
val pentaxObj = val::object();
const libraw_pentax_makernotes_t &cPent =
processor_->imgdata.makernotes.pentax;
{
val arr = val::array();
arr.set(0, cPent.DriveMode[0]);
arr.set(1, cPent.DriveMode[1]);
arr.set(2, cPent.DriveMode[2]);
arr.set(3, cPent.DriveMode[3]);
pentaxObj.set("DriveMode", arr);
}
{
val arr = val::array();
arr.set(0, cPent.FocusMode[0]);
arr.set(1, cPent.FocusMode[1]);
pentaxObj.set("FocusMode", arr);
}
{
val arr = val::array();
arr.set(0, cPent.AFPointSelected[0]);
arr.set(1, cPent.AFPointSelected[1]);
pentaxObj.set("AFPointSelected", arr);
}
pentaxObj.set("AFPointSelected_Area", (int)cPent.AFPointSelected_Area);
pentaxObj.set("AFPointsInFocus_version", cPent.AFPointsInFocus_version);
pentaxObj.set("AFPointsInFocus", (unsigned)cPent.AFPointsInFocus);
pentaxObj.set("FocusPosition", cPent.FocusPosition);
pentaxObj.set("AFAdjustment", cPent.AFAdjustment);
pentaxObj.set("AFPointMode", (int)cPent.AFPointMode);
pentaxObj.set("MultiExposure", (int)cPent.MultiExposure);
pentaxObj.set("Quality", cPent.Quality);
meta.set("pentax", pentaxObj);
}
// ================ HASSELBLAD ================
else if (makeLower.find("hasselblad") != std::string::npos)
{
val hassObj = val::object();
const libraw_hasselblad_makernotes_t &cHass =
processor_->imgdata.makernotes.hasselblad;
hassObj.set("BaseISO", cHass.BaseISO);
hassObj.set("Gain", cHass.Gain);
hassObj.set("Sensor", std::string(cHass.Sensor));
hassObj.set("SensorUnit", std::string(cHass.SensorUnit));
hassObj.set("HostBody", std::string(cHass.HostBody));
hassObj.set("SensorCode", cHass.SensorCode);
hassObj.set("SensorSubCode", cHass.SensorSubCode);
hassObj.set("CoatingCode", cHass.CoatingCode);
hassObj.set("uncropped", cHass.uncropped);
hassObj.set("CaptureSequenceInitiator",
std::string(cHass.CaptureSequenceInitiator));
hassObj.set("SensorUnitConnector",
std::string(cHass.SensorUnitConnector));
hassObj.set("format", cHass.format);
{
val arr = val::array();
arr.set(0, cHass.nIFD_CM[0]);
arr.set(1, cHass.nIFD_CM[1]);
hassObj.set("nIFD_CM", arr);
}
{
val arr = val::array();
arr.set(0, cHass.RecommendedCrop[0]);
arr.set(1, cHass.RecommendedCrop[1]);
hassObj.set("RecommendedCrop", arr);
}
{
// 4x3 matrix
val outer = val::array();
for (int i = 0; i < 4; i++) {
val row = val::array();
for (int j = 0; j < 3; j++) {
row.set(j, cHass.mnColorMatrix[i][j]);
}
outer.set(i, row);
}
hassObj.set("mnColorMatrix", outer);
}
meta.set("hasselblad", hassObj);
}
// ================ RICOH ================
else if (makeLower.find("ricoh") != std::string::npos)
{
val ricohObj = val::object();
const libraw_ricoh_makernotes_t &cRicoh =
processor_->imgdata.makernotes.ricoh;
ricohObj.set("AFStatus", cRicoh.AFStatus);
{
val arrX = val::array();
arrX.set(0, cRicoh.AFAreaXPosition[0]);
arrX.set(1, cRicoh.AFAreaXPosition[1]);
ricohObj.set("AFAreaXPosition", arrX);
}
{
val arrY = val::array();
arrY.set(0, cRicoh.AFAreaYPosition[0]);
arrY.set(1, cRicoh.AFAreaYPosition[1]);
ricohObj.set("AFAreaYPosition", arrY);
}
ricohObj.set("AFAreaMode", (int)cRicoh.AFAreaMode);
ricohObj.set("SensorWidth", cRicoh.SensorWidth);
ricohObj.set("SensorHeight", cRicoh.SensorHeight);
ricohObj.set("CroppedImageWidth", cRicoh.CroppedImageWidth);
ricohObj.set("CroppedImageHeight", cRicoh.CroppedImageHeight);
ricohObj.set("WideAdapter", cRicoh.WideAdapter);
ricohObj.set("CropMode", cRicoh.CropMode);
ricohObj.set("NDFilter", cRicoh.NDFilter);
ricohObj.set("AutoBracketing", cRicoh.AutoBracketing);
ricohObj.set("MacroMode", cRicoh.MacroMode);
ricohObj.set("FlashMode", cRicoh.FlashMode);
ricohObj.set("FlashExposureComp", cRicoh.FlashExposureComp);
ricohObj.set("ManualFlashOutput", cRicoh.ManualFlashOutput);
meta.set("ricoh", ricohObj);
}
// ================ SAMSUNG ================
else if (makeLower.find("samsung") != std::string::npos)
{
val samsungObj = val::object();
const libraw_samsung_makernotes_t &cSamsung =
processor_->imgdata.makernotes.samsung;
{
val arr = val::array();
arr.set(0, cSamsung.ImageSizeFull[0]);
arr.set(1, cSamsung.ImageSizeFull[1]);
arr.set(2, cSamsung.ImageSizeFull[2]);
arr.set(3, cSamsung.ImageSizeFull[3]);
samsungObj.set("ImageSizeFull", arr);
}
{
val arr = val::array();
arr.set(0, cSamsung.ImageSizeCrop[0]);
arr.set(1, cSamsung.ImageSizeCrop[1]);
arr.set(2, cSamsung.ImageSizeCrop[2]);
arr.set(3, cSamsung.ImageSizeCrop[3]);
samsungObj.set("ImageSizeCrop", arr);
}
{
val arr = val::array();
for (int i = 0; i < 11; i++) {
arr.set(i, cSamsung.key[i]);
}
samsungObj.set("key", arr);
}
samsungObj.set("ColorSpace0", cSamsung.ColorSpace[0]);
samsungObj.set("ColorSpace1", cSamsung.ColorSpace[1]);
samsungObj.set("DigitalGain", cSamsung.DigitalGain);
samsungObj.set("DeviceType", cSamsung.DeviceType);
samsungObj.set("LensFirmware", std::string(cSamsung.LensFirmware));
meta.set("samsung", samsungObj);
}
// ================ KODAK ================
else if (makeLower.find("kodak") != std::string::npos)
{
val kodakObj = val::object();
const libraw_kodak_makernotes_t &cKodak =
processor_->imgdata.makernotes.kodak;
kodakObj.set("BlackLevelTop", cKodak.BlackLevelTop);
kodakObj.set("BlackLevelBottom", cKodak.BlackLevelBottom);
kodakObj.set("offset_left", cKodak.offset_left);
kodakObj.set("offset_top", cKodak.offset_top);
kodakObj.set("clipBlack", cKodak.clipBlack);
kodakObj.set("clipWhite", cKodak.clipWhite);
kodakObj.set("val018percent", cKodak.val018percent);
kodakObj.set("val100percent", cKodak.val100percent);
kodakObj.set("val170percent", cKodak.val170percent);
kodakObj.set("MakerNoteKodak8a", cKodak.MakerNoteKodak8a);
kodakObj.set("ISOCalibrationGain", cKodak.ISOCalibrationGain);
kodakObj.set("AnalogISO", cKodak.AnalogISO);
meta.set("kodak", kodakObj);
}
// ================ PHASE ONE (p1) ================
else if (makeLower.find("phase one") != std::string::npos)
{
val p1Obj = val::object();
const libraw_p1_makernotes_t &cP1 = processor_->imgdata.makernotes.phaseone;
p1Obj.set("Software", std::string(cP1.Software));
p1Obj.set("SystemType", std::string(cP1.SystemType));
p1Obj.set("FirmwareString", std::string(cP1.FirmwareString));
p1Obj.set("SystemModel", std::string(cP1.SystemModel));
meta.set("p1", p1Obj);
}
}
return meta;
}
val imageData() {
if (!processor_) {
return val::undefined();
}
// If not yet unpacked/processed, do it now
if (!isUnpacked) {
isUnpacked = true;
int ret = processor_->unpack();
if (ret != LIBRAW_SUCCESS) {
throw std::runtime_error("LibRaw: unpack() failed with code " + std::to_string(ret));
}
ret = processor_->dcraw_process();
if (ret != LIBRAW_SUCCESS) {
throw std::runtime_error("LibRaw: dcraw_process() failed with code " + std::to_string(ret));
}
}
// Make a processed image in memory
libraw_processed_image_t* out = nullptr;
out = processor_->dcraw_make_mem_image();
if (!out) {
// If dcraw_make_mem_image() fails or returns null,
// we return undefined or throw an error
return val::undefined();
}
// Prepare a JS object to hold all the result fields
val resultObj = val::object();
// Store the basic image info
resultObj.set("height", out->height);
resultObj.set("width", out->width);
resultObj.set("colors", out->colors);
resultObj.set("bits", out->bits);
// Calculate total pixels and total bytes
size_t pixelCount = static_cast<size_t>(out->height) *
static_cast<size_t>(out->width) *
static_cast<size_t>(out->colors);
size_t bytesPerSample = out->bits / 8;
size_t totalBytes = pixelCount * bytesPerSample;
resultObj.set("dataSize", (unsigned int)out->data_size);
// Convert C++ pointer data into a new JS TypedArray, then free LibRaw memory.
// We do this to avoid referencing freed memory.
val jsData = val::undefined();
if (out->bits == 8) {
// We'll create a new Uint8Array of length totalBytes
// and copy the data from out->data
val typedArrayCtor = val::global("Uint8Array");
val typedArray = typedArrayCtor.new_(val((unsigned)totalBytes)); // allocate new JS array
// typed_memory_view(...) references the existing memory from out->data
val memView = val(typed_memory_view(totalBytes, (uint8_t*)out->data));
// Copy from memView into typedArray
typedArray.call<void>("set", memView);
jsData = typedArray;
}
else if (out->bits == 16) {
// We'll create a new Uint16Array of length pixelCount
unsigned length = (unsigned)pixelCount; // # of 16-bit samples
val typedArrayCtor = val::global("Uint16Array");
val typedArray = typedArrayCtor.new_(val(length));
// typed_memory_view(...) references out->data as an array of uint16
val memView = val(typed_memory_view(length, (uint16_t*)out->data));
typedArray.call<void>("set", memView);
jsData = typedArray;
}
else {
// Unknown bit depth; free memory and throw
processor_->dcraw_clear_mem(out);
throw std::runtime_error("Unsupported bit depth");
}
// Now we can safely free the processed image data
processor_->dcraw_clear_mem(out);
// Put the typed array into the result object
resultObj.set("data", jsData);
return resultObj;
}
private:
LibRaw* processor_ = nullptr;
bool isUnpacked = false;
void applySettings(const val& settings) {
// If 'settings' is null or undefined, just skip
if (settings.isNull() || settings.isUndefined()) {
return;
}
if (settings.typeOf().as<std::string>() != "object") {
return;
}
libraw_output_params_t ¶ms = processor_->imgdata.params;
// -- ARRAYS --
if (settings.hasOwnProperty("greybox") && !settings["greybox"].isNull() && !settings["greybox"].isUndefined()) {
val arr = settings["greybox"];
if (arr["length"].as<unsigned>() == 4) {
for (int i = 0; i < 4; i++) {
params.greybox[i] = arr[i].as<unsigned>();
}
}
}
if (settings.hasOwnProperty("cropbox") && !settings["cropbox"].isNull() && !settings["cropbox"].isUndefined()) {
val arr = settings["cropbox"];
if (arr["length"].as<unsigned>() == 4) {
for (int i = 0; i < 4; i++) {
params.cropbox[i] = arr[i].as<unsigned>();
}
}
}
if (settings.hasOwnProperty("aber") && !settings["aber"].isNull() && !settings["aber"].isUndefined()) {
val arr = settings["aber"];
if (arr["length"].as<unsigned>() == 4) {
for (int i = 0; i < 4; i++) {
params.aber[i] = arr[i].as<double>();
}