public RawImage(DcRawState state)
{
image = state.image;
width = state.width;
height = state.height;
colours = state.colors;
topMargin = state.top_margin;
leftMargin = state.left_margin;
}
private static DateTime?GetRC2PhotoDate(string path)
{
DcRawState state = new DcRawState();
state.inFilename = path;
state.ifp = new RawStream(path);
Identifier id = new Identifier(state);
id.identify(state.ifp);
return(state.timestamp.HasValue ? state.timestamp.Value : LastWriteTime(path));
}
private static void Shrink(DcRawState state)
{
ushort[] img = new ushort[state.height * state.width * 4];
for (int row = 0; row < state.height; row++)
{
for (int col = 0; col < state.width; col++)
{
int c = fc(state, row, col);
img[(row * state.width + col) * 4 + c] = state.image[((row >> 1) * state.iwidth + (col >> 1)) * 4 + c];
}
}
state.image = img;
state.shrink = 0;
}
public static void PreInterpolate(DcRawState state)
{
if (state.shrink != 0)
{
if (state.half_size)
{
state.height = state.iheight;
state.width = state.iwidth;
}
else
{
Shrink(state);
}
}
if (state.filters != 0 && state.colors == 3)
{
state.mix_green = state.four_color_rgb;
if (state.mix_green)
{
state.colors++;
}
else
{
for (int row = state.FC(1, 0) >> 1; row < state.height; row += 2)
{
for (int col = state.FC(row, 1) & 1; col < state.width; col += 2)
{
state.image[(row * state.width + col) * 4 + 1] = state.image[(row * state.width + col) * 4 + 3];
}
}
state.filters &= ~((state.filters & 0x55555555) << 1);
}
}
if (state.half_size)
{
state.filters = 0;
}
}
public AHD(DcRawState state)
: base(state)
{
}
public Packed12Loader(DcRawState state) : base(state)
{
}
}; /* 14-bit lossless */
public NikonCompressedLoader(DcRawState state) : base(state)
{
}
protected Demosaic(DcRawState state) : base(state)
{
}
public BasicDemosiac(DcRawState state) : base(state)
{
}
public LosslessJpegLoader(DcRawState state)
: base(state)
{
}
public Bilinear(DcRawState state) : base(state)
{
}
protected LJpegBase(DcRawState state) : base(state)
{
}
public Median(DcRawState state) : base(state)
{
}
public override void Parse(Stream s)
{
DcRawState state = new DcRawState();
state.inFilename = "";
state.ifp = new RawStream(s);
Identifier id = new Identifier(state);
id.identify(state.ifp);
// Works this far...
switch ((state.flip + 3600) % 360)
{
case 270:
state.flip = 5;
break;
case 180:
state.flip = 3;
break;
case 90:
state.flip = 6;
break;
}
/*
* // TODO: need writer
* Tiff t = new Tiff(state);
* state.write_fun = t.write_ppm_tiff;*/
if (state.load_raw is kodak_ycbcr_load_raw)
{
state.height += state.height & 1;
state.width += state.width & 1;
}
if (state.is_raw == 0)
{
throw new FormatException("File not supported");
}
if (state.is_raw == 0)
{
return;
}
state.shrink = (state.filters != 0 &&
(state.half_size || state.threshold != 0 || state.aber[0] != 1 || state.aber[2] != 1))
? (ushort)1
: (ushort)0;
state.iheight = (state.height + state.shrink) >> state.shrink;
state.iwidth = (state.width + state.shrink) >> state.shrink;
if (state.use_camera_matrix && state.cmatrix[0, 0] > 0.25)
{
Array.Copy(state.cmatrix, state.rgb_cam, state.cmatrix.Length);
}
state.raw_color = true;
state.image = new ushort[state.iheight * state.iwidth * 4];
if (state.shot_select >= state.is_raw)
{
throw new FormatException("File name incorrect");
}
state.ifp.Seek(state.data_offset, SeekOrigin.Begin);
state.load_raw.LoadRaw();
height = (uint)state.raw_height;
width = (uint)state.raw_width;
colorDepth = (ushort)state.output_bps;
cfa = null;
camMul = new double[] { 1, 1, 1, 1 };
black = new double[4];
curve = null;
}
public JHead(DcRawState state, RawStream s, bool info_only, uint dng_version)
{
byte[] data = new byte[0x10000];
restart = int.MaxValue;
s.Read(data, 0, 2);
if (data[1] != 0xd8)
{
// Error state (I think)
throw new Exception("unexpected value in jpeg header");
//return 0;
}
int tag;
int len;
do
{
s.Read(data, 0, 2 * 2);
tag = data[0] << 8 | data[1];
len = (data[2] << 8 | data[3]) - 2;
if (tag <= 0xff00)
{
// Non error
return;
}
s.Read(data, 0, len);
switch (tag)
{
case 0xffc0: // SOF0 - Start of Frame 0 - Baseline DCT
case 0xffc3: // SOF3 - Start of Frame 3 - Lossless (sequential)
if (tag == 0xffc3)
{
sraw = ((((data[7] >> 4) * (data[7] & 15) - 1) & 3) == 0) ? false : true;
}
bits = data[0];
high = data[1] << 8 | data[2];
wide = data[3] << 8 | data[4];
clrs = data[5] - (sraw ? 1 : 0);
if (len == 9 && dng_version == 0)
{
s.ReadByte();
}
break;
case 0xffc4: // DHT - Define Huffman Table
if (info_only)
{
break;
}
for (int dpi = 0; dpi < len && data[dpi] < 4;)
{
int idx = data[dpi];
dpi++;
huff[idx] = new HuffmanTree(data, ref dpi);
}
break;
case 0xffda: // SOS - Start of Scan
psv = data[1 + data[0] * 2];
bits -= data[3 + data[0] * 2] & 15;
break;
case 0xffdd: // DRI - Define Restart Interval
restart = data[0] << 8 | data[1];
break;
// <-- end of dcraw.c ported code (for this switch statement) -->
// thumbnail image
// for more unhandled tags, see: http://www.impulseadventure.com/photo/jpeg-decoder.html
case 0xffd8: // SOI - Start of Image
case 0xffd9: // EOI - End of Image
case 0xffdb: // DQT - Define Quantization Table
break;
default:
Console.WriteLine("Unhandled jpeg tag: {0}", tag);
break;
}
} while (tag != 0xffda);
if (info_only)
{
// No error
//return 1;
return;
}
if (sraw)
{
huff[3] = huff[2] = huff[1];
huff[1] = huff[0];
}
row = new ushort[wide * clrs * 2];
/*
* for (int iii = 0; iii < huff.Length; iii++)
* {
* Console.WriteLine("huff[{0}]", iii);
* Decode.DumpTable(huff[iii], 0);
* }
*/
//row = (ushort*) calloc(wide * clrs, 4);
//merror(jh->row, "ljpeg_start()");
// TODO: why do we need error handling here?
s.ZeroAfterFF = true;
}
protected Filter(DcRawState state)
{
this.state = state;
}
private static int fc(DcRawState state, int row, int col)
{
return(state.filters != 1 ? state.FC(row, col) : filter[(row + state.top_margin) & 15, (col + state.left_margin) & 15]);
}
public AdobeDngLoader(DcRawState state) : base(state)
{
}