internal ImageLine(ImageInfo imgInfo, ESampleType stype, bool unpackedMode, int[] sci, byte[] scb)
{
ImgInfo = imgInfo;
channels = imgInfo.Channels;
bitDepth = imgInfo.BitDepth;
FilterUsed = FilterType.FILTER_UNKNOWN;
SampleType = stype;
SamplesUnpacked = unpackedMode || !imgInfo.Packed;
ElementsPerRow = SamplesUnpacked ? imgInfo.SamplesPerRow : imgInfo.SamplesPerRowPacked;
if (stype == ESampleType.INT)
{
Scanline = sci ?? (new int[ElementsPerRow]);
ScanlineB = null;
MaxSampleVal = bitDepth == 16 ? 0xFFFF : GetMaskForPackedFormatsLs(bitDepth);
}
else if (stype == ESampleType.BYTE)
{
ScanlineB = scb ?? (new byte[ElementsPerRow]);
Scanline = null;
MaxSampleVal = bitDepth == 16 ? 0xFF : GetMaskForPackedFormatsLs(bitDepth);
}
else
{
throw new PngjExceptionInternal("bad ImageLine initialization");
}
Rown = -1;
}
/// <summary> Constructs an ImageLine </summary>
/// <param name="imgInfo">Inmutable copy of PNG ImageInfo</param>
/// <param name="sampleType">Storage for samples:INT (default) or BYTE</param>
/// <param name="unpackedMode">If true and bitdepth less than 8, samples are unpacked. This has no effect if biddepth 8 or 16</param>
public ImageLine(ImageInfo imgInfo, ESampleType sampleType, bool unpackedMode, int[] scanLineInt, byte[] scanLineBytes, int imageRow)
{
this._imgInfo = imgInfo;
channels = imgInfo.Channels;
this.bitDepth = imgInfo.BitDepth;
this.FilterUsed = FilterType.FILTER_UNKNOWN;
this.SampleType = sampleType;
this.SamplesUnpacked = unpackedMode || !imgInfo.Packed;
this._elementsPerRow = this.SamplesUnpacked ? imgInfo.SamplesPerRow : imgInfo.SamplesPerRowPacked;
this._imageRow = imageRow;
if (sampleType == ESampleType.INT)
{
_scanline = scanLineInt != null ? scanLineInt : new int[ElementsPerRow];
_scanlineB = null;
this._maxSampleVal = bitDepth == 16 ? 0xFFFF : GetMaskForPackedFormatsLs(bitDepth);
}
else if (sampleType == ESampleType.BYTE)
{
_scanlineB = scanLineBytes != null ? scanLineBytes : new byte[ElementsPerRow];
_scanline = null;
this._maxSampleVal = bitDepth == 16 ? 0xFF : GetMaskForPackedFormatsLs(bitDepth);
}
else
{
throw new System.Exception("bad ImageLine initialization");
}
}
internal ImageLine( ImageInfo imgInfo, ESampleType stype, bool unpackedMode, int [] sci, byte [] scb )
{
this.ImgInfo = imgInfo;
channels = imgInfo.Channels;
this.bitDepth = imgInfo.BitDepth;
this.FilterUsed = FilterType.FILTER_UNKNOWN;
this.SampleType = stype;
this.SamplesUnpacked = unpackedMode || !imgInfo.Packed;
ElementsPerRow = this.SamplesUnpacked ? imgInfo.SamplesPerRow
: imgInfo.SamplesPerRowPacked;
if ( stype == ESampleType.INT )
{
Scanline = sci != null ? sci : new int [ ElementsPerRow ];
ScanlineB = null;
maxSampleVal = bitDepth == 16 ? 0xFFFF : GetMaskForPackedFormatsLs ( bitDepth );
}
else if ( stype == ESampleType.BYTE )
{
ScanlineB = scb != null ? scb : new byte [ ElementsPerRow ];
Scanline = null;
maxSampleVal = bitDepth == 16 ? 0xFF : GetMaskForPackedFormatsLs ( bitDepth );
}
else
throw new PngjExceptionInternal ( "bad ImageLine initialization" );
this.Rown = -1;
}
internal ImageLine(ImageInfo imgInfo, ESampleType stype, bool unpackedMode, int[] sci, byte[] scb)
{
ImgInfo = imgInfo;
channels = imgInfo.Channels;
bitDepth = imgInfo.BitDepth;
FilterUsed = FilterType.FILTER_UNKNOWN;
SampleType = stype;
SamplesUnpacked = (unpackedMode || !imgInfo.Packed);
ElementsPerRow = (SamplesUnpacked ? imgInfo.SamplesPerRow : imgInfo.SamplesPerRowPacked);
switch (stype)
{
case ESampleType.INT:
Scanline = ((sci != null) ? sci : new int[ElementsPerRow]);
ScanlineB = null;
maxSampleVal = ((bitDepth == 16) ? 65535 : GetMaskForPackedFormatsLs(bitDepth));
break;
case ESampleType.BYTE:
ScanlineB = ((scb != null) ? scb : new byte[ElementsPerRow]);
Scanline = null;
maxSampleVal = ((bitDepth == 16) ? 255 : GetMaskForPackedFormatsLs(bitDepth));
break;
default:
throw new PngjExceptionInternal("bad ImageLine initialization");
}
Rown = -1;
}
/// <summary>
/// Constructs an ImageLine
/// </summary>
/// <param name="imgInfo">Inmutable copy of PNG ImageInfo</param>
/// <param name="stype">Storage for samples:INT (default) or BYTE</param>
/// <param name="unpackedMode">If true and bitdepth less than 8, samples are unpacked. This has no effect if biddepth 8 or 16</param>
public ImageLine(ImageInfo imgInfo, ESampleType stype, bool unpackedMode)
: this(imgInfo, stype, unpackedMode, null, null)
{
}
public ImageLine(ImageInfo imgInfo, ESampleType stype)
: this(imgInfo, stype, false)
{
}
public ImageLine(ImageInfo imgInfo, ESampleType stype) : this(imgInfo, stype, false)
{
}
/// <summary>
/// Constructs an ImageLine
/// </summary>
/// <param name="imgInfo">Inmutable copy of PNG ImageInfo</param>
/// <param name="stype">Storage for samples:INT (default) or BYTE</param>
/// <param name="unpackedMode">If true and bitdepth less than 8, samples are unpacked. This has no effect if biddepth 8 or 16</param>
public ImageLine(ImageInfo imgInfo, ESampleType stype, bool unpackedMode) : this(imgInfo, stype, unpackedMode, null, null)
{
}
public ImageLine(ImageInfo imgInfo, ESampleType stype)
: this(imgInfo, stype, unpackedMode : false)
{
}
