private void load(string filename)
{
using (FileStream fs = new FileStream(filename, FileMode.Open, FileAccess.Read)) {
long length;
bool done;
long pos;
byte[] buffer;
length = fs.Length;
compressed_data = new byte[length];
fs.Read(compressed_data, 0, (int)length);
/* Feed small chunks at a time to a pixbuf loader until
* it emits the "size-prepared" signal. This lets us
* avoid uncompressing the whole image just to figure
* out its size.
*/
using (Gdk.PixbufLoader loader = new Gdk.PixbufLoader()) {
loader.SizePrepared += new SizePreparedHandler(
delegate(object o, SizePreparedArgs args) {
done = true;
width = args.Width;
height = args.Height;
});
done = false;
pos = 0;
buffer = new byte[512];
while (!done)
{
long to_copy;
to_copy = length - pos;
if (to_copy > 512)
{
to_copy = 512;
}
else if (to_copy == 0)
{
break;
}
Array.Copy(compressed_data, pos, buffer, 0, to_copy);
loader.Write(buffer);
pos += to_copy;
}
try
{
loader.Close();
}
catch
{
}
}
}
}
public Gdk.Pixbuf MakePixbufFromCompressedData()
{
Gdk.Pixbuf pixbuf;
using (Gdk.PixbufLoader loader = new Gdk.PixbufLoader()) {
loader.Write(compressed_data);
loader.Close();
pixbuf = loader.Pixbuf;
}
return(pixbuf);
}
// Copied from f-spot
// These should eventually appear in Gtk#
private static Pixbuf LoadFromStream(System.IO.Stream input)
{
Gdk.PixbufLoader loader = new Gdk.PixbufLoader ();
byte [] buffer = new byte [8192];
ulong n;
while ((n = (ulong) input.Read (buffer, 0, 8192)) != 0)
loader.Write (buffer, n);
loader.Close ();
return loader.Pixbuf;
}
static public Pixbuf LoadFromStream(System.IO.Stream input)
{
Gdk.PixbufLoader loader = new Gdk.PixbufLoader();
byte [] buffer = new byte [8192];
int n;
while ((n = input.Read(buffer, 0, 8192)) != 0)
{
loader.Write(buffer, (ulong)n);
}
loader.Close();
return(loader.Pixbuf);
}
public Pixbuf Load(System.IO.Stream stream, ImageOrientation orientation)
{
int count;
byte [] data = new byte [8192];
while (((count = stream.Read(data, 0, data.Length)) > 0) && loader.Write(data, (ulong)count))
{
;
}
loader.Close();
Pixbuf orig = loader.Pixbuf;
Gdk.Pixbuf rotated = FSpot.Utils.PixbufUtils.TransformOrientation(orig, orientation);
if (orig != rotated)
{
orig.Dispose();
}
loader.Dispose();
return(rotated);
}
public Pixbuf Load(System.IO.Stream stream, PixbufOrientation orientation)
{
int count;
byte [] data = new byte [8192];
while (((count = stream.Read(data, 0, data.Length)) > 0) && loader.Write(data, (ulong)count))
{
;
}
loader.Close();
Pixbuf orig = loader.Pixbuf;
Gdk.Pixbuf rotated = TransformOrientation(orig, orientation, true);
if (orig != rotated)
{
CopyThumbnailOptions(orig, rotated);
orig.Dispose();
}
loader.Dispose();
return(rotated);
}
public Gdk.Pixbuf MakePixbufFromCompressedData ()
{
Gdk.Pixbuf pixbuf;
using (Gdk.PixbufLoader loader = new Gdk.PixbufLoader ()) {
loader.Write (compressed_data);
loader.Close ();
pixbuf = loader.Pixbuf;
}
return pixbuf;
}
private void load (string filename)
{
using (FileStream fs = new FileStream (filename, FileMode.Open, FileAccess.Read)) {
long length;
bool done;
long pos;
byte[] buffer;
length = fs.Length;
compressed_data = new byte[length];
fs.Read (compressed_data, 0, (int) length);
/* Feed small chunks at a time to a pixbuf loader until
* it emits the "size-prepared" signal. This lets us
* avoid uncompressing the whole image just to figure
* out its size.
*/
using (Gdk.PixbufLoader loader = new Gdk.PixbufLoader ()) {
loader.SizePrepared += new SizePreparedHandler (
delegate (object o, SizePreparedArgs args) {
done = true;
width = args.Width;
height = args.Height;
});
done = false;
pos = 0;
buffer = new byte[512];
while (!done) {
long to_copy;
to_copy = length - pos;
if (to_copy > 512)
to_copy = 512;
else if (to_copy == 0)
break;
Array.Copy (compressed_data, pos, buffer, 0, to_copy);
loader.Write (buffer);
pos += to_copy;
}
loader.Close ();
}
}
}
public Gdk.Pixbuf LoadJpegInterchangeFormat (ImageDirectory directory)
{
uint offset = directory.Lookup (TagId.JPEGInterchangeFormat).ValueAsLong [0];
uint length = directory.Lookup (TagId.JPEGInterchangeFormatLength).ValueAsLong [0];
using (System.IO.Stream file = Open ()) {
file.Position = offset;
byte [] data = new byte [32768];
int read;
Gdk.PixbufLoader loader = new Gdk.PixbufLoader ();
while (length > 0) {
read = file.Read (data, 0, (int)System.Math.Min ((int)data.Length, length));
if (read <= 0)
break;
loader.Write (data, (ulong)read);
length -= (uint) read;
}
Gdk.Pixbuf result = loader.Pixbuf;
loader.Close ();
return result;
}
}
