/// <summary>
/// Method to read data
/// </summary>
/// <param name="i"></param>
public override void Read(ArrayDataIO i)
{
// Don't need to read null data (noted by Jens Knudstrup)
if (byteSize == 0)
{
return;
}
SetFileOffset(i);
//if(i is RandomAccess)
if (i.CanSeek)
{
//tiler = new ImageDataTiler(this, (RandomAccess) i, ((RandomAccess) i).FilePointer, dataDescription);
tiler = new ImageDataTiler(this, (RandomAccess)i, ((Stream)i).Position, dataDescription);
try
{
double pos = i.Position;
//pos = i.Seek((int)byteSize) - pos;
i.Seek(byteSize);
}
catch (IOException e)
{
throw new FitsException("Unable to skip over data:" + e);
}
}
else
{
dataArray = ArrayFuncs.NewInstance(dataDescription.type, dataDescription.dims);
try
{
i.ReadArray(dataArray);
}
catch (IOException e)
{
throw new FitsException("Unable to read image data:" + e);
}
tiler = new ImageDataTiler(this, null, 0, dataDescription);
}
int pad = FitsUtil.Padding(TrueSize);
try
{
long pos = i.Seek(pad);
if (pos != pad)
{
throw new FitsException("Error skipping padding");
}
}
catch (IOException e)
{
throw new FitsException("Error reading image padding:" + e);
}
}
public void test()
{
float[][] data = new float[300][];
for (int i = 0; i < 300; i++)
{
data[i] = new float[300];
}
for (int i = 0; i < 300; i += 1)
{
for (int j = 0; j < 300; j += 1)
{
data[i][j] = 1000 * i + j;
}
}
Fits f = null;
try
{
f = new Fits();
BufferedFile bf = new BufferedFile(TestFileSetup.GetTargetFilename("tiler1.fits"), FileAccess.ReadWrite,
FileShare.ReadWrite);
f.AddHDU(Fits.MakeHDU(data));
f.Write(bf);
bf.Close();
bf.Dispose();
f.Close();
f = new Fits(TestFileSetup.GetTargetFilename("tiler1.fits"));
ImageHDU h = (ImageHDU)f.ReadHDU();
ImageTiler t = h.Tiler;
doTile("t1", data, t, 200, 200, 50, 50);
doTile("t2", data, t, 133, 133, 72, 26);
Object o = h.Data.Kernel;
doTile("t3", data, t, 200, 200, 50, 50);
doTile("t4", data, t, 133, 133, 72, 26);
}
finally
{
if (f != null)
{
f.Close();
}
}
}
void doTile(String test,
float[][] data,
ImageTiler t,
int x, int y, int nx, int ny)
{
float[] tile = new float[nx * ny];
t.GetTile(tile, new int[] { y, x }, new int[] { ny, nx });
float sum0 = 0;
float sum1 = 0;
for (int i = 0; i < nx; i += 1)
{
for (int j = 0; j < ny; j += 1)
{
sum0 += tile[i + j * nx];
sum1 += data[j + y][i + x];
}
}
Assert.AreEqual(sum0, sum1);
}
private void importPNGButton_Click(object sender, EventArgs e)
{
getFiles();
if (GFXFile == null) return;
if (PalFile == null) return;
if (LayoutFile == null) return;
int offs = bg.topLayer ? 256 : 576;
int palOffs = bg.topLayer ? 8 : 10;
OpenFileDialog ofd = new OpenFileDialog();
ofd.Filter = LanguageManager.Get("Filters", "png");
ofd.CheckFileExists = true;
if (ofd.ShowDialog() != DialogResult.OK) return;
string filename = ofd.FileName;
Bitmap b = new Bitmap(filename);
ImageTiler ti = new ImageTiler(b);
Color[] palette = ImageIndexer.createPaletteForImage(b);
ByteArrayOutputStream oo = new ByteArrayOutputStream();
for (int i = 0; i < palette.Length; i++)
oo.writeUShort(NSMBTileset.toRGB15(palette[i]));
for (int i = 0; i < 256; i++)
oo.writeUShort(0);
PalFile.beginEdit(this);
PalFile.replace(ROM.LZ77_Compress(oo.getArray()), this);
PalFile.endEdit(this);
GFXFile.beginEdit(this);
GFXFile.replace(ROM.LZ77_Compress(ImageIndexer.indexImageWithPalette(ti.tileBuffer, palette)), this);
GFXFile.endEdit(this);
b.Dispose();
ByteArrayOutputStream layout = new ByteArrayOutputStream();
for (int y = 0; y < 64; y++)
for (int x = 0; x < 64; x++)
layout.writeUShort((ushort)((ti.tileMap[x, y] + offs) | (palOffs<<12)));
LayoutFile.beginEdit(this);
LayoutFile.replace(ROM.LZ77_Compress(layout.getArray()), this);
LayoutFile.endEdit(this);
}