#if _MSC_VER >= 1400
#define _CRT_SECURE_NO_DEPRECATE 1
#endif

#include "psd.h"
#include "trasterimage.h"
#include "trop.h"
#include "tpixelutils.h"

/*
  The entire content of this file is ridden with LEAKS. A bug has been filed, will hopefully
  be dealt with ASAP.


  L'intero contenuto del file e' pieno di LEAK. Ho inserito la cosa in Bugilla e non ho potuto
  fare altro sotto rilascio. Non solo, il codice dei distruttori e' SBAGLIATO - l'ho esplicitamente
  disabilitato, tanto non era chiamato cmq.

  E' da rifare usando SMART POINTERS (boost::scoped_ptr<> o tcg::unique_ptr<>, o
  std::unique_ptr<> se facciamo l'upgrade del compilatore).

  Da osservare che anche il campo FILE in TPSDReader leaka se viene sganciata un'eccezione...
*/

#define LEVEL_NAME_INDEX_SEP "@"

//----forward declarations
std::string buildErrorString(int error);

void readChannel(FILE *f, TPSDLayerInfo *li,
				 TPSDChannelInfo *chan, int channels,
				 TPSDHeaderInfo *h);
void readLongData(FILE *f, struct dictentry *parent, TPSDLayerInfo *li);
void readByteData(FILE *f, struct dictentry *parent, TPSDLayerInfo *li);
void readKey(FILE *f, struct dictentry *parent, TPSDLayerInfo *li);
void readLayer16(FILE *f, struct dictentry *parent, TPSDLayerInfo *li);
//----end forward declarations

char swapByte(unsigned char src)
{
	unsigned char out = 0;
	for (int i = 0; i < 8; ++i) {
		out = out << 1;
		out |= (src & 1);
		src = src >> 1;
	}
	return out;
}

TPSDReader::TPSDReader(const TFilePath &path) : m_shrinkX(1),
												m_shrinkY(1),
												m_region(TRect())
{
	m_layerId = 0;
	QString name = path.getName().c_str();
	name.append(path.getDottedType().c_str());
	int sepPos = name.indexOf("#");
	int dotPos = name.indexOf(".", sepPos);
	name.remove(sepPos, dotPos - sepPos);
	m_path = path.getParentDir() + TFilePath(name.toStdString());
	//m_path = path;
	QMutexLocker sl(&m_mutex);
	openFile();
	if (!doInfo()) {
		fclose(m_file);
		throw TImageException(m_path, "Do PSD INFO ERROR");
	}
	fclose(m_file);
}
TPSDReader::~TPSDReader()
{
	/*for(int i=0; i<m_headerInfo.layersCount;i++)
  free(m_headerInfo.linfo + i);*/

	// NO - L'istruzione sopra e' SBAGLIATA, si tratta di uno pseudo-array allocato in blocco
	// con una SINGOLA malloc() - quindi deve dovrebbe essere deallocato con una SINGOLA free().

	// Se fino ad ora funzionava e' perche' questa funzione NON VENIVA MAI CHIAMATA -
	// LEAKAVA TUTTO.

	// Non solo, ma il CONTENUTO delle singole strutture - tra cui altri array - non viene
	// deallocato. Non ho idea se sia garantito che venga deallocato prima di arrivare qui,
	// ma NON E' AFFATTO SICURO.
}
int TPSDReader::openFile()
{
	m_file = fopen(m_path, "rb");
	if (!m_file)
		throw TImageException(m_path, buildErrorString(2));
	return 0;
}
bool TPSDReader::doInfo()
{
	// Read Header Block
	if (!doHeaderInfo())
		return false;
	// Read Color Mode Data Block
	if (!doColorModeData())
		return false;
	// Read Image Resources Block
	if (!doImageResources())
		return false;
	// Read Layer Info Block (Layers Number and merged alpha)
	if (!doLayerAndMaskInfo())
		return false;
	// Read Layers and Mask Information Block
	//if(!doLayersInfo()) return false;
	m_headerInfo.layerDataPos = ftell(m_file);

	if (m_headerInfo.layersCount == 0) //tento con extra data
	{
		fseek(m_file, m_headerInfo.layerDataPos, SEEK_SET);
		skipBlock(m_file); // skip global layer mask info
		psdByte currentPos = ftell(m_file);
		psdByte len = m_headerInfo.lmistart + m_headerInfo.lmilen - currentPos; // 4 = bytes skipped by global layer mask info
		doExtraData(NULL, len);
	}
	return true;
}
// Read Header Block
bool TPSDReader::doHeaderInfo()
{
	fread(m_headerInfo.sig, 1, 4, m_file);
	m_headerInfo.version = read2UBytes(m_file);
	read4Bytes(m_file);
	read2Bytes(m_file); // reserved[6];
	m_headerInfo.channels = read2UBytes(m_file);
	m_headerInfo.rows = read4Bytes(m_file);
	m_headerInfo.cols = read4Bytes(m_file);
	m_headerInfo.depth = read2UBytes(m_file);
	m_headerInfo.mode = read2UBytes(m_file);

	if (!feof(m_file) && !memcmp(m_headerInfo.sig, "8BPS", 4)) {
		if (m_headerInfo.version == 1) {
			if (m_headerInfo.channels <= 0 || m_headerInfo.channels > 64 || m_headerInfo.rows <= 0 ||
				m_headerInfo.cols <= 0 || m_headerInfo.depth < 0 || m_headerInfo.depth > 32 || m_headerInfo.mode < 0) {
				throw TImageException(m_path, "Reading PSD Header Info error");
				return false;
			}
		} else {
			throw TImageException(m_path, "PSD Version not supported");
			return false;
		}
	} else {
		throw TImageException(m_path, "Cannot read Header");
		return false;
	}
	return true;
}
// Read Color Mode Data Block
bool TPSDReader::doColorModeData()
{
	m_headerInfo.colormodepos = ftell(m_file);
	skipBlock(m_file); //skip "color mode data"
	return true;
}
// Read Image Resources Block
bool TPSDReader::doImageResources()
{
	//skipBlock(m_file); //skip "image resources"
	long len = read4Bytes(m_file); // lunghezza del blocco Image resources
	while (len > 0) {
		char type[4], name[0x100];
		int id, namelen;
		long size;
		fread(type, 1, 4, m_file);
		id = read2Bytes(m_file);
		namelen = fgetc(m_file);
		fread(name, 1, NEXT2(1 + namelen) - 1, m_file);
		name[namelen] = 0;
		size = read4Bytes(m_file);
		if (id == 1005) // ResolutionInfo
		{
			psdByte savepos = ftell(m_file);
			long hres, vres;
			double hresd, vresd;
			hresd = FIXDPI(hres = read4Bytes(m_file));
			read2Bytes(m_file);
			read2Bytes(m_file);
			vresd = FIXDPI(vres = read4Bytes(m_file));
			m_headerInfo.vres = vresd;
			m_headerInfo.hres = hresd;
			fseek(m_file, savepos, SEEK_SET);
		}
		len -= 4 + 2 + NEXT2(1 + namelen) + 4 + NEXT2(size);
		fseek(m_file, NEXT2(size), SEEK_CUR); // skip resource block data
	}
	if (len != 0)
		return false;
	return true;
}
// Read Layer Info Block (Layers Number and merged alpha)
bool TPSDReader::doLayerAndMaskInfo()
{
	psdByte layerlen;

	m_headerInfo.layersCount = 0;
	m_headerInfo.lmilen = read4Bytes(m_file);
	m_headerInfo.lmistart = ftell(m_file);
	if (m_headerInfo.lmilen) {
		// process layer info section
		layerlen = read4Bytes(m_file);
		m_headerInfo.linfoBlockEmpty = false;
		m_headerInfo.mergedalpha = 0;
		if (layerlen) {
			doLayersInfo();
		} else {
			//WARNING: layer info section empty
		}
	} else {
		//WARNING: layer & mask info section empty
	}
	return true;
}

// Read Layers Information Block
// It is called by doLayerAndMaskInfo()
bool TPSDReader::doLayersInfo()
{
	m_headerInfo.layersCount = read2Bytes(m_file);
	m_headerInfo.linfoBlockEmpty = false;
	m_headerInfo.mergedalpha = m_headerInfo.layersCount < 0;
	if (m_headerInfo.mergedalpha > 0) {
		m_headerInfo.layersCount = -m_headerInfo.layersCount;
	}
	if (!m_headerInfo.linfoBlockEmpty) {
		m_headerInfo.linfo = (TPSDLayerInfo *)mymalloc(m_headerInfo.layersCount * sizeof(struct TPSDLayerInfo));
		int i = 0;
		for (i = 0; i < m_headerInfo.layersCount; i++) {
			readLayerInfo(i);
		}
	}
	return true;
}
bool TPSDReader::readLayerInfo(int i)
{
	psdByte chlen, extralen, extrastart;
	int j, chid, namelen;
	TPSDLayerInfo *li = m_headerInfo.linfo + i;

	// process layer record
	li->top = read4Bytes(m_file);
	li->left = read4Bytes(m_file);
	li->bottom = read4Bytes(m_file);
	li->right = read4Bytes(m_file);
	li->channels = read2UBytes(m_file);

	if (li->bottom < li->top || li->right < li->left || li->channels > 64) // sanity ck
	{
		// qualcosa è andato storto, skippo il livello
		fseek(m_file, 6 * li->channels + 12, SEEK_CUR);
		skipBlock(m_file); // skip  "layer info: extra data";
	} else {
		li->chan = (TPSDChannelInfo *)mymalloc(li->channels * sizeof(struct TPSDChannelInfo));
		li->chindex = (int *)mymalloc((li->channels + 2) * sizeof(int));
		li->chindex += 2; //

		for (j = -2; j < li->channels; ++j)
			li->chindex[j] = -1;

		// fetch info on each of the layer's channels
		for (j = 0; j < li->channels; ++j) {
			chid = li->chan[j].id = read2Bytes(m_file);
			chlen = li->chan[j].length = read4Bytes(m_file);

			if (chid >= -2 && chid < li->channels)
				li->chindex[chid] = j;
			else {
				//WARNING: unexpected channel id
			}
		}

		fread(li->blend.sig, 1, 4, m_file);
		fread(li->blend.key, 1, 4, m_file);
		li->blend.opacity = fgetc(m_file);
		li->blend.clipping = fgetc(m_file);
		li->blend.flags = fgetc(m_file);
		fgetc(m_file); // padding

		extralen = read4Bytes(m_file);
		extrastart = ftell(m_file);

		// layer mask data
		if ((li->mask.size = read4Bytes(m_file))) {
			li->mask.top = read4Bytes(m_file);
			li->mask.left = read4Bytes(m_file);
			li->mask.bottom = read4Bytes(m_file);
			li->mask.right = read4Bytes(m_file);
			li->mask.default_colour = fgetc(m_file);
			li->mask.flags = fgetc(m_file);
			fseek(m_file, li->mask.size - 18, SEEK_CUR); // skip remainder
			li->mask.rows = li->mask.bottom - li->mask.top;
			li->mask.cols = li->mask.right - li->mask.left;
		} else {
			//no layer mask data
		}

		skipBlock(m_file); // skip "layer blending ranges";

		// layer name
		li->nameno = (char *)malloc(16);
		sprintf(li->nameno, "layer%d", i + 1);
		namelen = fgetc(m_file);
		li->name = (char *)mymalloc(NEXT4(namelen + 1));
		fread(li->name, 1, NEXT4(namelen + 1) - 1, m_file);
		li->name[namelen] = 0;
		if (namelen) {
			if (li->name[0] == '.')
				li->name[0] = '_';
		}

		// process layer's 'additional info'

		li->additionalpos = ftell(m_file);
		li->additionallen = extrastart + extralen - li->additionalpos;
		doExtraData(li, li->additionallen);

		// leave file positioned at end of layer's data
		fseek(m_file, extrastart + extralen, SEEK_SET);
	}
	return true;
}

void TPSDReader::doImage(TRasterP &rasP, int layerId)
{
	m_layerId = layerId;
	int layerIndex = getLayerInfoIndexById(layerId);
	TPSDLayerInfo *li = getLayerInfo(layerIndex);
	psdByte imageDataEnd;
	// retrieve start data pos
	psdByte startPos = ftell(m_file);
	if (m_headerInfo.layersCount > 0) {
		struct TPSDLayerInfo *lilast = &m_headerInfo.linfo[m_headerInfo.layersCount - 1];
		startPos = lilast->additionalpos + lilast->additionallen;
	}
	if (layerIndex > 0) {
		for (int j = 0; j < layerIndex; j++) {
			struct TPSDLayerInfo *liprev = &m_headerInfo.linfo[j];
			for (int ch = 0; ch < liprev->channels; ch++) {
				startPos += liprev->chan[ch].length;
			}
		}
	}
	fseek(m_file, startPos, SEEK_SET);

	long pixw = li ? li->right - li->left : m_headerInfo.cols;
	long pixh = li ? li->bottom - li->top : m_headerInfo.rows;
	int channels = li ? li->channels : m_headerInfo.channels;

	if (li == NULL)
		fseek(m_file, m_headerInfo.lmistart + m_headerInfo.lmilen, SEEK_SET);

	psdPixel rows = pixh;
	psdPixel cols = pixw;

	int ch = 0;
	psdByte **rowpos;

	rowpos = (psdByte **)mymalloc(channels * sizeof(psdByte *));

	for (ch = 0; ch < channels; ++ch) {
		psdPixel chrows = li && !m_headerInfo.linfoBlockEmpty && li->chan[ch].id == -2 ? li->mask.rows : rows;
		rowpos[ch] = (psdByte *)mymalloc((chrows + 1) * sizeof(psdByte));
	}

	int tnzchannels = 0;

	int depth = m_headerInfo.depth;
	switch (m_headerInfo.mode) {
	//default: // multichannel, cmyk, lab etc
	//	split = 1;
	case ModeBitmap:
	case ModeGrayScale:
	case ModeGray16:
	case ModeDuotone:
	case ModeDuotone16:
		tnzchannels = 1;
		// check if there is an alpha channel, or if merged data has alpha
		if (li ? li->chindex[-1] != -1 : channels > 1 && m_headerInfo.mergedalpha) {
			tnzchannels = 2;
		}
		break;
	case ModeIndexedColor:
		tnzchannels = 1;
		break;
	case ModeRGBColor:
	case ModeRGB48:
		tnzchannels = 3;
		if (li ? li->chindex[-1] != -1 : channels > 3 && m_headerInfo.mergedalpha) {
			tnzchannels = 4;
		}
		break;
	default:
		tnzchannels = channels;
		//assert(0);
		break;
	}

	if (!li || m_headerInfo.linfoBlockEmpty) { // merged channel
		TPSDChannelInfo *mergedChans = (TPSDChannelInfo *)mymalloc(channels * sizeof(struct TPSDChannelInfo));

		readChannel(m_file, NULL, mergedChans, channels, &m_headerInfo);
		imageDataEnd = ftell(m_file);
		readImageData(rasP, NULL, mergedChans, tnzchannels, rows, cols);
		free(mergedChans);
	} else {
		for (ch = 0; ch < channels; ++ch) {
			readChannel(m_file, li, li->chan + ch, 1, &m_headerInfo);
		}
		imageDataEnd = ftell(m_file);
		readImageData(rasP, li, li->chan, tnzchannels, rows, cols);
	}
	fseek(m_file, imageDataEnd, SEEK_SET);

	for (ch = 0; ch < channels; ++ch)
		free(rowpos[ch]);
	free(rowpos);
}

void TPSDReader::load(TRasterImageP &img, int layerId)
{
	QMutexLocker sl(&m_mutex);
	TPSDLayerInfo *li = NULL;
	int layerIndex = 0;
	if (layerId > 0) {
		layerIndex = getLayerInfoIndexById(layerId);
		li = getLayerInfo(layerIndex);
	}
	if (layerId < 0)
		throw TImageException(m_path, "Layer ID not exists");

	if (m_headerInfo.mode == 4 || m_headerInfo.depth == 32) {
		img = TRasterImageP();
		return;
	}

	try {
		TRasterP rasP;
		openFile();
		doImage(rasP, layerId);
		fclose(m_file);
		/*
		// do savebox
		long sbx0 = li ? li->left : 0;
		long sby0 = li ? m_headerInfo.rows-li->bottom : 0;
		long sbx1 = li ? li->right - 1 : m_headerInfo.cols - 1;
		long sby1 = li ? m_headerInfo.rows - li->top - 1 : m_headerInfo.rows - 1;	
		TRect layerSaveBox;
		layerSaveBox = TRect(sbx0,sby0,sbx1,sby1);
		TRect imageRect = TRect(0,0,m_headerInfo.cols-1,m_headerInfo.rows-1);
		// E' possibile che il layer sia in parte o tutto al di fuori della'immagine
		// in questo caso considero solo la parte visibile, cioè che rientra nell'immagine.
		// Se è tutta fuori restutuisco TRasterImageP()
		layerSaveBox *= imageRect;

		if(layerSaveBox== TRect()) {
			img = TRasterImageP();
			return; 
		}			 */

		if (!rasP) {
			img = TRasterImageP();
			return;
		} // Happens if layer image has 0 rows and (or?)
		  // cols (dont ask me why, but I've seen it)
		TRect layerSaveBox = m_layersSavebox[layerId];
		TRect savebox(layerSaveBox);
		TDimension imgSize(rasP->getLx(), rasP->getLy());
		assert(TRect(imgSize).contains(savebox));

		if (TRasterGR8P ras = rasP) {
			TPixelGR8 bgColor;
			ras->fillOutside(savebox, bgColor);
			img = TRasterImageP(ras);
		} else if (TRaster32P ras = rasP) {
			TPixel32 bgColor(0, 0, 0, 0);
			if (savebox != TRect())
				ras->fillOutside(savebox, bgColor);
			else
				ras->fill(bgColor);
			img = TRasterImageP(ras);
		} else if ((TRaster64P)rasP) {
			TRaster32P raux(rasP->getLx(), rasP->getLy());
			TRop::convert(raux, rasP);
			TPixel32 bgColor(0, 0, 0, 0);
			raux->fillOutside(savebox, bgColor);
			img = TRasterImageP(raux);
		} else {
			throw TImageException(m_path, "Invalid Raster");
		}
		img->setDpi(m_headerInfo.hres, m_headerInfo.vres);
		img->setSavebox(savebox);
	} catch (...) {
	}
}

int TPSDReader::getLayerInfoIndexById(int layerId)
{
	int layerIndex = -1;
	for (int i = 0; i < m_headerInfo.layersCount; i++) {
		TPSDLayerInfo *litemp = m_headerInfo.linfo + i;
		if (litemp->layerId == layerId) {
			layerIndex = i;
			break;
		}
	}
	if (layerIndex < 0 && layerId != 0)
		throw TImageException(m_path, "Layer ID not exists");
	return layerIndex;
}
TPSDLayerInfo *TPSDReader::getLayerInfo(int index)
{
	if (index < 0 || index >= m_headerInfo.layersCount)
		return NULL;
	return m_headerInfo.linfo + index;
}
TPSDHeaderInfo TPSDReader::getPSDHeaderInfo()
{
	return m_headerInfo;
}

void TPSDReader::readImageData(TRasterP &rasP, TPSDLayerInfo *li, TPSDChannelInfo *chan,
							   int chancount, psdPixel rows, psdPixel cols)
{
	int channels = li ? li->channels : m_headerInfo.channels;

	short depth = m_headerInfo.depth;

	psdByte savepos = ftell(m_file);
	if (rows == 0 || cols == 0)
		return;
	psdPixel j;

	unsigned char *inrows[4], *rledata;

	int ch, map[4];

	rledata = (unsigned char *)mymalloc(chan->rowbytes * 2);

	for (ch = 0; ch < chancount; ++ch) {
		inrows[ch] = (unsigned char *)mymalloc(chan->rowbytes);
		map[ch] = li && chancount > 1 ? li->chindex[ch] : ch;
	}

	// find the alpha channel, if needed
	if (li && (chancount == 2 || chancount == 4)) { // grey+alpha
		if (li->chindex[-1] == -1) {
			//WARNING no alpha found?;
		} else
			map[chancount - 1] = li->chindex[-1];
	}

	// region dimensions with shrink
	// x0 e x1 non tengono conto dello shrink.
	int x0 = 0;
	int x1 = m_headerInfo.cols - 1;
	int y0 = 0;
	int y1 = m_headerInfo.rows - 1;

	if (!m_region.isEmpty()) {
		x0 = m_region.getP00().x;
		// se x0 è fuori dalle dimensioni dell'immagine ritorna un'immagine vuota
		if (x0 >= m_headerInfo.cols)
			return;
		x1 = x0 + m_region.getLx() - 1;
		// controllo che x1 rimanga all'interno dell'immagine
		if (x1 >= m_headerInfo.cols)
			x1 = m_headerInfo.cols - 1;
		y0 = m_region.getP00().y;
		// se y0 è fuori dalle dimensioni dell'immagine ritorna un'immagine vuota
		if (y0 >= m_headerInfo.rows)
			return;
		y1 = y0 + m_region.getLy() - 1;
		// controllo che y1 rimanga all'interno dell'immagine
		if (y1 >= m_headerInfo.rows)
			y1 = m_headerInfo.rows - 1;
	}
	if (m_shrinkX > x1 - x0)
		m_shrinkX = x1 - x0;
	if (m_shrinkY > y1 - y0)
		m_shrinkY = y1 - y0;
	assert(m_shrinkX > 0 && m_shrinkY > 0);
	if (m_shrinkX > 1) {
		x1 -= (x1 - x0) % m_shrinkX;
	}
	if (m_shrinkY > 1) {
		y1 -= (y1 - y0) % m_shrinkY;
	}
	assert(x0 <= x1 && y0 <= y1);

	TDimension imgSize((x1 - x0) / m_shrinkX + 1, (y1 - y0) / m_shrinkY + 1);
	if (depth == 1 && chancount == 1) {
		rasP = TRasterGR8P(imgSize);
	} else if (depth == 8 && chancount > 1) {
		rasP = TRaster32P(imgSize);
	} else if (m_headerInfo.depth == 8 && chancount == 1) {
		rasP = TRasterGR8P(imgSize);
	} else if (m_headerInfo.depth == 16 && chancount == 1 && m_headerInfo.mergedalpha) {
		rasP = TRasterGR8P(imgSize);
	} else if (m_headerInfo.depth == 16) {
		rasP = TRaster64P(imgSize);
	}

	// do savebox
	// calcolo la savebox in coordinate dell'immagine
	long sbx0 = li ? li->left - x0 : 0;
	long sby0 = li ? m_headerInfo.rows - li->bottom - y0 : 0;
	long sbx1 = li ? li->right - 1 - x0 : x1 - x0;
	long sby1 = li ? m_headerInfo.rows - li->top - 1 - y0 : y1 - y0;

	TRect layerSaveBox;
	layerSaveBox = TRect(sbx0, sby0, sbx1, sby1);

	TRect imageRect;
	if (!m_region.isEmpty())
		imageRect = TRect(0, 0, m_region.getLx() - 1, m_region.getLy() - 1);
	else
		imageRect = TRect(0, 0, m_headerInfo.cols - 1, m_headerInfo.rows - 1);
	// E' possibile che il layer sia in parte o tutto al di fuori della'immagine
	// in questo caso considero solo la parte visibile, cioè che rientra nell'immagine.
	// Se è tutta fuori restutuisco TRasterImageP()
	layerSaveBox *= imageRect;

	if (layerSaveBox == TRect() || layerSaveBox.isEmpty()) {
		return;
	}
	// Estraggo da rasP solo il rettangolo che si interseca con il livello corrente
	// stando attento a prendere i pixel giusti.
	int firstXPixIndexOfLayer = layerSaveBox.getP00().x - 1 + m_shrinkX - (abs(layerSaveBox.getP00().x - 1) % m_shrinkX);
	int lrx0 = firstXPixIndexOfLayer / m_shrinkX;
	int firstLineIndexOfLayer = layerSaveBox.getP00().y - 1 + m_shrinkY - (abs(layerSaveBox.getP00().y - 1) % m_shrinkY);
	int lry0 = firstLineIndexOfLayer / m_shrinkY;
	int lrx1 = (layerSaveBox.getP11().x - abs(layerSaveBox.getP11().x % m_shrinkX)) / m_shrinkX;
	int lry1 = (layerSaveBox.getP11().y - abs(layerSaveBox.getP11().y % m_shrinkY)) / m_shrinkY;
	TRect layerSaveBox2 = TRect(lrx0, lry0, lrx1, lry1);
	if (layerSaveBox2.isEmpty())
		return;
	assert(TRect(imgSize).contains(layerSaveBox2));
	if (li)
		m_layersSavebox[li->layerId] = layerSaveBox2;
	else
		m_layersSavebox[0] = layerSaveBox2;
	TRasterP smallRas = rasP->extract(layerSaveBox2);
	assert(smallRas);
	if (!smallRas)
		return;
	// Trovo l'indice di colonna del primo pixel del livello che deve essere letto
	// L'indice è riferito al livello.
	int colOffset = firstXPixIndexOfLayer - layerSaveBox.getP00().x;
	assert(colOffset >= 0);
	// Trovo l'indice della prima riga del livello che deve essere letta
	// L'indice è riferito al livello.
	// Nota che nel file photoshop le righe sono memorizzate dall'ultima alla prima.
	int rowOffset = abs(sby1) % m_shrinkY;
	int rowCount = rowOffset;
	//if(m_shrinkY==3) rowCount--;
	for (j = 0; j < smallRas->getLy(); j++) {
		for (ch = 0; ch < chancount; ++ch) {
			/* get row data */
			if (map[ch] < 0 || map[ch] > chancount) {
				//warn("bad map[%d]=%d, skipping a channel", i, map[i]);
				memset(inrows[ch], 0, chan->rowbytes); // zero out the row
			} else
				readrow(m_file, chan + map[ch], rowCount, inrows[ch], rledata);
		}
		// se la riga corrente non rientra nell'immagine salto la copia
		if (sby1 - rowCount < 0 || sby1 - rowCount > m_headerInfo.rows - 1) {
			rowCount += m_shrinkY;
			continue;
		}
		if (depth == 1 && chancount == 1) {
			if (!(layerSaveBox.getP00().x - sbx0 >= 0 && layerSaveBox.getP00().x - sbx0 + smallRas->getLx() / 8 - 1 < chan->rowbytes))
				throw TImageException(m_path, "Unable to read image with this depth and channels values");
			smallRas->lock();
			unsigned char *rawdata = (unsigned char *)smallRas->getRawData(0, smallRas->getLy() - j - 1);
			TPixelGR8 *pix = (TPixelGR8 *)rawdata;
			int colCount = colOffset;
			for (int k = 0; k < smallRas->getLx(); k += 8) {
				char value = ~inrows[0][layerSaveBox.getP00().x - sbx0 + colCount];
				pix[k].setValue(value);
				pix[k + 1].setValue(value);
				pix[k + 2].setValue(value);
				pix[k + 3].setValue(value);
				pix[k + 4].setValue(value);
				pix[k + 5].setValue(value);
				pix[k + 6].setValue(value);
				pix[k + 7].setValue(value);
				colCount += m_shrinkX;
			}
			smallRas->unlock();
		} else if (depth == 8 && chancount > 1) {
			if (!(layerSaveBox.getP00().x - sbx0 >= 0 && layerSaveBox.getP00().x - sbx0 + smallRas->getLx() - 1 < chan->rowbytes))
				throw TImageException(m_path, "Unable to read image with this depth and channels values");
			smallRas->lock();
			unsigned char *rawdata = (unsigned char *)smallRas->getRawData(0, smallRas->getLy() - j - 1);
			TPixel32 *pix = (TPixel32 *)rawdata;
			int colCount = colOffset;
			for (int k = 0; k < smallRas->getLx(); k++) {
				if (chancount >= 3) {
					pix[k].r = inrows[0][layerSaveBox.getP00().x - sbx0 + colCount];
					pix[k].g = inrows[1][layerSaveBox.getP00().x - sbx0 + colCount];
					pix[k].b = inrows[2][layerSaveBox.getP00().x - sbx0 + colCount];
					if (chancount == 4) // RGB + alpha
						pix[k].m = inrows[3][layerSaveBox.getP00().x - sbx0 + colCount];
					else
						pix[k].m = 255;
				} else if (chancount <= 2) // gray + alpha
				{
					pix[k].r = inrows[0][layerSaveBox.getP00().x - sbx0 + colCount];
					pix[k].g = inrows[0][layerSaveBox.getP00().x - sbx0 + colCount];
					pix[k].b = inrows[0][layerSaveBox.getP00().x - sbx0 + colCount];
					if (chancount == 2)
						pix[k].m = inrows[1][layerSaveBox.getP00().x - sbx0 + colCount];
					else
						pix[k].m = 255;
				}
				colCount += m_shrinkX;
			}

			smallRas->unlock();
		} else if (m_headerInfo.depth == 8 && chancount == 1) {
			if (!(layerSaveBox.getP00().x - sbx0 >= 0 && layerSaveBox.getP00().x - sbx0 + smallRas->getLx() - 1 < chan->rowbytes))
				throw TImageException(m_path, "Unable to read image with this depth and channels values");
			smallRas->lock();
			unsigned char *rawdata = (unsigned char *)smallRas->getRawData(0, smallRas->getLy() - j - 1);

			TPixelGR8 *pix = (TPixelGR8 *)rawdata;
			int colCount = colOffset;
			for (int k = 0; k < smallRas->getLx(); k++) {
				pix[k].setValue(inrows[0][layerSaveBox.getP00().x - sbx0 + colCount]);
				colCount += m_shrinkX;
			}
			smallRas->unlock();
		} else if (m_headerInfo.depth == 16 && chancount == 1 && m_headerInfo.mergedalpha) // mergedChannels
		{
			if (!(layerSaveBox.getP00().x - sbx0 >= 0 && layerSaveBox.getP00().x - sbx0 + smallRas->getLx() - 1 < chan->rowbytes))
				throw TImageException(m_path, "Unable to read image with this depth and channels values");
			smallRas->lock();
			unsigned char *rawdata = (unsigned char *)smallRas->getRawData(0, smallRas->getLy() - j - 1);
			TPixelGR8 *pix = (TPixelGR8 *)rawdata;
			int colCount = colOffset;
			for (int k = 0; k < smallRas->getLx(); k++) {
				pix[k].setValue(inrows[0][layerSaveBox.getP00().x - sbx0 + colCount]);
				colCount += m_shrinkX;
			}
			smallRas->unlock();
		} else if (m_headerInfo.depth == 16) {
			if (!(layerSaveBox.getP00().x - sbx0 >= 0 && layerSaveBox.getP00().x - sbx0 + smallRas->getLx() - 1 < chan->rowbytes))
				throw TImageException(m_path, "Unable to read image with this depth and channels values");
			smallRas->lock();
			unsigned short *rawdata = (unsigned short *)smallRas->getRawData(0, smallRas->getLy() - j - 1);
			TPixel64 *pix = (TPixel64 *)rawdata;
			int colCount = colOffset;
			for (int k = 0; k < smallRas->getLx(); k++) {
				if (chancount >= 3) {
					pix[k].r = swapShort(((psdUint16 *)inrows[0])[layerSaveBox.getP00().x - sbx0 + colCount]);
					pix[k].g = swapShort(((psdUint16 *)inrows[1])[layerSaveBox.getP00().x - sbx0 + colCount]);
					pix[k].b = swapShort(((psdUint16 *)inrows[2])[layerSaveBox.getP00().x - sbx0 + colCount]);
				} else if (chancount <= 2) {
					pix[k].r = swapShort(((psdUint16 *)inrows[0])[layerSaveBox.getP00().x - sbx0 + colCount]);
					pix[k].g = swapShort(((psdUint16 *)inrows[0])[layerSaveBox.getP00().x - sbx0 + colCount]);
					pix[k].b = swapShort(((psdUint16 *)inrows[0])[layerSaveBox.getP00().x - sbx0 + colCount]);
					if (chancount == 2)
						pix[k].m = swapShort(((psdUint16 *)inrows[1])[layerSaveBox.getP00().x - sbx0 + colCount]);
				}
				if (chancount == 4) {
					pix[k].m = swapShort(((psdUint16 *)inrows[3])[layerSaveBox.getP00().x - sbx0 + colCount]);
				} else
					pix[k].m = 0xffff;
				colCount += m_shrinkX;
			}
			smallRas->unlock();
		} else {
			throw TImageException(m_path, "Unable to read image with this depth and channels values");
		}
		rowCount += m_shrinkY;
	}
	fseek(m_file, savepos, SEEK_SET); // restoring filepos

	free(rledata);
	for (ch = 0; ch < chancount; ++ch)
		free(inrows[ch]);
}

void TPSDReader::doExtraData(TPSDLayerInfo *li, psdByte length)
{
	static struct dictentry extradict[] = {
		// v4.0
		{0, "levl", "LEVELS", "Levels", NULL /*adj_levels*/},
		{0, "curv", "CURVES", "Curves", NULL /*adj_curves*/},
		{0, "brit", "BRIGHTNESSCONTRAST", "Brightness/contrast", NULL},
		{0, "blnc", "COLORBALANCE", "Color balance", NULL},
		{0, "hue ", "HUESATURATION4", "Old Hue/saturation, Photoshop 4.0", NULL /*adj_huesat4*/},
		{0, "hue2", "HUESATURATION5", "New Hue/saturation, Photoshop 5.0", NULL /*adj_huesat5*/},
		{0, "selc", "SELECTIVECOLOR", "Selective color", NULL /*adj_selcol*/},
		{0, "thrs", "THRESHOLD", "Threshold", NULL},
		{0, "nvrt", "INVERT", "Invert", NULL},
		{0, "post", "POSTERIZE", "Posterize", NULL},
		// v5.0
		{0, "lrFX", "EFFECT", "Effects layer", NULL /*ed_layereffects*/},
		{0, "tySh", "TYPETOOL5", "Type tool (5.0)", NULL /*ed_typetool*/},
		{0, "luni", "-UNICODENAME", "Unicode layer name", NULL /*ed_unicodename*/},
		{0, "lyid", "-LAYERID", "Layer ID", readLongData}, // '-' prefix means keep tag value on one line
		// v6.0
		{0, "lfx2", "OBJECTEFFECT", "Object based effects layer", NULL /*ed_objecteffects*/},
		{0, "Patt", "PATTERN", "Pattern", NULL},
		{0, "Pat2", "PATTERNCS", "Pattern (CS)", NULL},
		{0, "Anno", "ANNOTATION", "Annotation", NULL /*ed_annotation*/},
		{0, "clbl", "-BLENDCLIPPING", "Blend clipping", readByteData},
		{0, "infx", "-BLENDINTERIOR", "Blend interior", readByteData},
		{0, "knko", "-KNOCKOUT", "Knockout", readByteData},
		{0, "lspf", "-PROTECTED", "Protected", readLongData},
		{0, "lclr", "SHEETCOLOR", "Sheet color", NULL},
		{0, "fxrp", "-REFERENCEPOINT", "Reference point", NULL /*ed_referencepoint*/},
		{0, "grdm", "GRADIENT", "Gradient", NULL},
		{0, "lsct", "-SECTION", "Section divider", readLongData},					// CS doc
		{0, "SoCo", "SOLIDCOLORSHEET", "Solid color sheet", NULL /*ed_versdesc*/},  // CS doc
		{0, "PtFl", "PATTERNFILL", "Pattern fill", NULL /*ed_versdesc*/},			// CS doc
		{0, "GdFl", "GRADIENTFILL", "Gradient fill", NULL /*ed_versdesc*/},			// CS doc
		{0, "vmsk", "VECTORMASK", "Vector mask", NULL},								// CS doc
		{0, "TySh", "TYPETOOL6", "Type tool (6.0)", NULL /*ed_typetool*/},			// CS doc
		{0, "ffxi", "-FOREIGNEFFECTID", "Foreign effect ID", readLongData},			// CS doc (this is probably a key too, who knows)
		{0, "lnsr", "-LAYERNAMESOURCE", "Layer name source", readKey},				// CS doc (who knew this was a signature? docs fail again - and what do the values mean?)
		{0, "shpa", "PATTERNDATA", "Pattern data", NULL},							// CS doc
		{0, "shmd", "METADATASETTING", "Metadata setting", NULL /*ed_metadata*/},   // CS doc
		{0, "brst", "BLENDINGRESTRICTIONS", "Channel blending restrictions", NULL}, // CS doc
		// v7.0
		{0, "lyvr", "-LAYERVERSION", "Layer version", readLongData},						// CS doc
		{0, "tsly", "-TRANSPARENCYSHAPES", "Transparency shapes layer", readByteData},		// CS doc
		{0, "lmgm", "-LAYERMASKASGLOBALMASK", "Layer mask as global mask", readByteData},   // CS doc
		{0, "vmgm", "-VECTORMASKASGLOBALMASK", "Vector mask as global mask", readByteData}, // CS doc
		// CS
		{0, "mixr", "CHANNELMIXER", "Channel mixer", NULL}, // CS doc
		{0, "phfl", "PHOTOFILTER", "Photo Filter", NULL},   // CS doc

		{0, "Lr16", "LAYER16", "Layer 16", readLayer16},
		{0, NULL, NULL, NULL, NULL}};

	while (length >= 12) {
		psdByte block = sigkeyblock(m_file, extradict, li);
		if (!block) {
			//warn("bad signature in layer's extra data, skipping the rest");
			break;
		}
		length -= block;
	}
}

struct dictentry *TPSDReader::findbykey(FILE *f, struct dictentry *parent, char *key, TPSDLayerInfo *li)
{
	struct dictentry *d;

	for (d = parent; d->key; ++d)
		if (!memcmp(key, d->key, 4)) {
			//char *tagname = d->tag + (d->tag[0] == '-');
			//fprintf(stderr, "matched tag %s\n", d->tag);
			if (d->func) {
				psdByte savepos = ftell(f);
				//int oneline = d->tag[0] == '-';
				//char *tagname = d->tag + oneline;
				if (memcmp(key, "Lr16", 4) == 0) {
					doLayersInfo();
				} else
					d->func(f, d, li); // parse contents of this datum
				fseek(f, savepos, SEEK_SET);
			} else {
				// there is no function to parse this block.
				// because tag is empty in this case, we only need to consider
				// parent's one-line-ness.
			}
			return d;
		}
	return NULL;
}

int TPSDReader::sigkeyblock(FILE *f, struct dictentry *dict, TPSDLayerInfo *li)
{
	char sig[4], key[4];
	long len;
	struct dictentry *d;

	fread(sig, 1, 4, f);
	fread(key, 1, 4, f);
	len = read4Bytes(f);
	if (!memcmp(sig, "8BIM", 4)) {
		if (dict && (d = findbykey(f, dict, key, li)) && !d->func) {
			// there is no function to parse this block
			//UNQUIET("    (data: %s)\n", d->desc);
		}
		fseek(f, len, SEEK_CUR);
		return len + 12; // return number of bytes consumed
	}
	return 0; // bad signature
}

//---------------------------- Utility functions
std::string buildErrorString(int error)
{
	std::string message = "";
	switch (error) {
	case 0:
		message = "NO Error Found";
		break;
	case 1:
		message = "Reading File Error";
		break;
	case 2:
		message = "Opening File Error";
		break;
	default:
		message = "Unknown Error";
	}
	return message;
}

void readChannel(FILE *f, TPSDLayerInfo *li,
				 TPSDChannelInfo *chan, //channel info array
				 int channels,
				 TPSDHeaderInfo *h)
{
	int comp, ch;
	psdByte pos, chpos, rb;
	unsigned char *zipdata;
	psdPixel count, last, j;
	chpos = ftell(f);

	if (li) {

		// If this is a layer mask, the pixel size is a special case
		if (chan->id == -2) {
			chan->rows = li->mask.rows;
			chan->cols = li->mask.cols;
		} else {
			// channel has dimensions of the layer
			chan->rows = li->bottom - li->top;
			chan->cols = li->right - li->left;
		}
	} else {
		// merged image, has dimensions of PSD
		chan->rows = h->rows;
		chan->cols = h->cols;
	}

	// Compute image row bytes
	rb = ((long)chan->cols * h->depth + 7) / 8;

	// Read compression type
	comp = read2UBytes(f);

	// Prepare compressed data for later access:
	pos = chpos + 2;

	// skip rle counts, leave pos pointing to first compressed image row
	if (comp == RLECOMP)
		pos += (channels * chan->rows) << h->version;

	for (ch = 0; ch < channels; ++ch) {
		if (!li)
			chan[ch].id = ch;
		chan[ch].rowbytes = rb;
		chan[ch].comptype = comp;
		chan[ch].rows = chan->rows;
		chan[ch].cols = chan->cols;
		chan[ch].filepos = pos;

		if (!chan->rows)
			continue;

		// For RLE, we read the row count array and compute file positions.
		// For ZIP, read and decompress whole channel.
		switch (comp) {
		case RAWDATA:
			pos += chan->rowbytes * chan->rows;
			break;

		case RLECOMP:
			/* accumulate RLE counts, to make array of row start positions */
			chan[ch].rowpos = (psdByte *)mymalloc((chan[ch].rows + 1) * sizeof(psdByte));
			last = chan[ch].rowbytes;
			for (j = 0; j < chan[ch].rows && !feof(f); ++j) {
				count = h->version == 1 ? read2UBytes(f) : (unsigned long)read4Bytes(f);

				if (count > 2 * chan[ch].rowbytes) // this would be impossible
					count = last;				   // make a guess, to help recover
				last = count;

				chan[ch].rowpos[j] = pos;
				pos += count;
			}
			if (j < chan[ch].rows) {
				// fatal error couldn't read RLE counts
			}
			chan[ch].rowpos[j] = pos; /* = end of last row */
			break;

		case ZIPWITHOUTPREDICTION:
		case ZIPWITHPREDICTION:
			if (li) {
				pos += chan->length - 2;

				zipdata = (unsigned char *)mymalloc(chan->length);
				count = fread(zipdata, 1, chan->length - 2, f);
				//if(count < chan->length - 2)
				//	alwayswarn("ZIP data short: wanted %d bytes, got %d", chan->length, count);

				chan->unzipdata = (unsigned char *)mymalloc(chan->rows * chan->rowbytes);
				if (comp == ZIPWITHOUTPREDICTION)
					psdUnzipWithoutPrediction(zipdata, count, chan->unzipdata,
											  chan->rows * chan->rowbytes);
				else
					psdUnzipWithPrediction(zipdata, count, chan->unzipdata,
										   chan->rows * chan->rowbytes,
										   chan->cols, h->depth);

				free(zipdata);
			} else {
				// WARNING cannot process ZIP compression outside layer
			}
			break;
		default: {
			// BAD COMPRESSION TYPE
		}
			if (li)
				fseek(f, chan->length - 2, SEEK_CUR);
			break;
		}
	}

	//if(li && pos != chpos + chan->length)
	//	alwayswarn("# channel data is %ld bytes, but length = %ld\n",
	//			   pos - chpos, chan->length);

	// set at the end of channel's data
	fseek(f, pos, SEEK_SET);
}

void readLongData(FILE *f, struct dictentry *parent, TPSDLayerInfo *li)
{
	unsigned long id = read4Bytes(f);
	if (strcmp(parent->key, "lyid") == 0)
		li->layerId = id;
	else if (strcmp(parent->key, "lspf") == 0)
		li->protect = id;
	else if (strcmp(parent->key, "lsct") == 0)
		li->section = id;
	else if (strcmp(parent->key, "ffxi") == 0)
		li->foreignEffectID = id;
	else if (strcmp(parent->key, "lyvr") == 0)
		li->layerVersion = id;
}

void readByteData(FILE *f, struct dictentry *parent, TPSDLayerInfo *li)
{
	int id = fgetc(f);
	if (strcmp(parent->key, "clbl") == 0)
		li->blendClipping = id;
	else if (strcmp(parent->key, "infx") == 0)
		li->blendInterior = id;
	else if (strcmp(parent->key, "knko") == 0)
		li->knockout = id;
	else if (strcmp(parent->key, "tsly") == 0)
		li->transparencyShapes = id;
	else if (strcmp(parent->key, "lmgm") == 0)
		li->layerMaskAsGlobalMask = id;
	else if (strcmp(parent->key, "vmgm") == 0)
		li->vectorMaskAsGlobalMask = id;
}

void readKey(FILE *f, struct dictentry *parent, TPSDLayerInfo *li)
{
	static char key[5];
	if (fread(key, 1, 4, f) == 4)
		key[4] = 0;
	else
		key[0] = 0; // or return NULL?

	if (strcmp(parent->key, "lnsr") == 0)
		li->layerNameSource = key;
}

void readLayer16(FILE *f, struct dictentry *parent, TPSDLayerInfo *li)
{
	//struct psd_header h2 = *psd_header; // a kind of 'nested' set of layers; don't alter main PSD header

	// overwrite main PSD header, mainly because of the 'merged alpha' flag

	// I *think* they mean us to respect the one in Lr16 because in my test data,
	// the main layer count is zero, so cannot convey this information.
	//dolayerinfo(f, psd_header);
	//processlayers(f, psd_header);
}
//---------------------------- END Utility functions

// TPSD PARSER
TPSDParser::TPSDParser(const TFilePath &path)
{
	m_path = path;
	QString name = path.getName().c_str();
	name.append(path.getDottedType().c_str());
	int sepPos = name.indexOf("#");
	int dotPos = name.indexOf(".", sepPos);
	name.remove(sepPos, dotPos - sepPos);
	TFilePath psdpath = m_path.getParentDir() + TFilePath(name.toStdString());
	m_psdreader = new TPSDReader(psdpath);
	doLevels();
}

TPSDParser::~TPSDParser()
{
	delete m_psdreader;
}

void TPSDParser::doLevels()
{
	QString path = m_path.getName().c_str();
	QStringList list = path.split("#");
	m_levels.clear();
	if (list.size() > 1) {
		TPSDHeaderInfo psdheader = m_psdreader->getPSDHeaderInfo();
		if (list.contains("frames") && list.at(0) != "frames") {
			int firstLayerId = 0;
			Level level;
			for (int i = 0; i < psdheader.layersCount; i++) {
				TPSDLayerInfo *li = m_psdreader->getLayerInfo(i);
				long width = li->right - li->left;
				long height = li->bottom - li->top;
				if (width > 0 && height > 0) {
					assert(li->layerId >= 0);
					if (i == 0)
						firstLayerId = li->layerId;
					level.addFrame(li->layerId);
				}
			}
			// non ha importanza quale layerId assegno, l'importante è che esista
			level.setLayerId(0);
			if (psdheader.layersCount == 0)
				level.addFrame(firstLayerId); // succede nel caso in cui la psd non ha blocco layerInfo
			m_levels.push_back(level);
		} else if (list.size() == 3) {
			if (list.at(2) == "group") {
				int folderTagOpen = 0;
				int scavenge = 0;
				for (int i = 0; i < psdheader.layersCount; i++) {
					TPSDLayerInfo *li = m_psdreader->getLayerInfo(i);
					long width = li->right - li->left;
					long height = li->bottom - li->top;
					if (width > 0 && height > 0 && folderTagOpen == 0) {
						assert(li->layerId >= 0);
						Level level(li->name, li->layerId);
						level.addFrame(li->layerId);
						m_levels.push_back(level);
						scavenge = 0;
					} else {
						if (width != 0 && height != 0) {
							m_levels[m_levels.size() - 1 - (scavenge - folderTagOpen)].addFrame(li->layerId);
						} else {
							if (strcmp(li->name, "</Layer group>") == 0 || strcmp(li->name, "</Layer set>") == 0) {
								assert(li->layerId >= 0);
								Level level(li->name, li->layerId, true);
								m_levels.push_back(level);
								folderTagOpen++;
								scavenge = folderTagOpen;
							} else if (li->section > 0 && li->section <= 3) // vedi specifiche psd
							{
								assert(li->layerId >= 0);
								m_levels[m_levels.size() - 1 - (scavenge - folderTagOpen)].setName(li->name);
								m_levels[m_levels.size() - 1 - (scavenge - folderTagOpen)].setLayerId(li->layerId);
								folderTagOpen--;
								if (folderTagOpen > 0)
									m_levels[m_levels.size() - 1 - (scavenge - folderTagOpen)].addFrame(li->layerId, true);
							}
						}
					}
				}
				if (psdheader.layersCount == 0) // succede nel caso in cui la psd non ha blocco layerInfo
				{
					Level level;
					level.setLayerId(0);
					level.addFrame(0);
					m_levels.push_back(level);
				}
			} else
				throw TImageException(m_path, "PSD code name error");
		} else if (list.size() == 2) // each psd layer is a tlevel
		{
			TPSDHeaderInfo psdheader = m_psdreader->getPSDHeaderInfo();
			for (int i = 0; i < psdheader.layersCount; i++) {
				TPSDLayerInfo *li = m_psdreader->getLayerInfo(i);
				long width = li->right - li->left;
				long height = li->bottom - li->top;
				if (width > 0 && height > 0) {
					assert(li->layerId >= 0);
					Level level(li->name, li->layerId);
					level.addFrame(li->layerId);
					m_levels.push_back(level);
				}
			}
			if (psdheader.layersCount == 0) // succede nel caso in cui la psd non ha blocco layerInfo
			{
				Level level;
				level.setLayerId(0);
				level.addFrame(0);
				m_levels.push_back(level);
			}
		} else
			throw TImageException(m_path, "PSD code name error");
	} else // list.size()==1. float
	{
		Level level;
		level.setName(m_path.getName());
		level.addFrame(0);
		m_levels.push_back(level);
	}
}

void TPSDParser::load(TRasterImageP &rasP, int layerId)
{
	m_psdreader->load(rasP, layerId);
}

int TPSDParser::getLevelIndexById(int layerId)
{
	int layerIndex = -1;
	for (int i = 0; i < (int)m_levels.size(); i++) {
		if (m_levels[i].getLayerId() == layerId) {
			layerIndex = i;
			break;
		}
	}
	if (layerId == 0 && layerIndex < 0)
		layerIndex = 0;
	if (layerIndex < 0 && layerId != 0)
		throw TImageException(m_path, "Layer ID not exists");
	return layerIndex;
}
int TPSDParser::getLevelIdByName(string levelName)
{
	int pos = levelName.find_last_of(LEVEL_NAME_INDEX_SEP);
	int counter = 0;
	if (pos != string::npos) {
		counter = atoi(levelName.substr(pos + 1).c_str());
		levelName = levelName.substr(0, pos);
	}
	int lyid = -1;
	int levelNameCount = 0;
	for (int i = 0; i < (int)m_levels.size(); i++) {
		if (m_levels[i].getName() == levelName) {
			lyid = m_levels[i].getLayerId();
			if (counter == levelNameCount)
				break;
			levelNameCount++;
		}
	}
	if (lyid == 0 && lyid < 0)
		lyid = 0;
	if (lyid < 0 && lyid != 0)
		throw TImageException(m_path, "Layer ID not exists");
	return lyid;
}
int TPSDParser::getFramesCount(int levelId)
{
	int levelIndex = getLevelIndexById(levelId);
	assert(levelIndex >= 0 && levelIndex < (int)m_levels.size());
	return m_levels[levelIndex].getFrameCount();
}
string TPSDParser::getLevelName(int levelId)
{
	int levelIndex = getLevelIndexById(levelId);
	assert(levelIndex >= 0 && levelIndex < (int)m_levels.size());
	return m_levels[levelIndex].getName();
}
string TPSDParser::getLevelNameWithCounter(int levelId)
{
	string levelName = getLevelName(levelId);
	int count = 0;
	for (int i = 0; i < (int)m_levels.size(); i++) {
		if (m_levels[i].getName() == levelName) {
			if (m_levels[i].getLayerId() == levelId) {
				break;
			}
			count++;
		}
	}
	if (count > 0) {
		levelName.append(LEVEL_NAME_INDEX_SEP);
		string c = QString::number(count).toStdString();
		levelName.append(c);
	}
	return levelName;
}