private GdkPixBufBitmapSource LoadSourceFromMemory(IntPtr sourceBuffer, int sourceBufferSize)
{
IntPtr gdkStream = LibGdkPixBuf.g_memory_input_stream_new_from_data(sourceBuffer, sourceBufferSize, IntPtr.Zero);
try
{
return(LoadSourceFromGdkStream(gdkStream));
}
finally
{
LibGdkPixBuf.g_object_unref(gdkStream);
}
}
private GdkPixBufBitmapSource LoadSourceFromGdkStream(IntPtr gdkStream)
{
IntPtr pixbuf = LibGdkPixBuf.gdk_pixbuf_new_from_stream(gdkStream, IntPtr.Zero, out IntPtr errorPtr);
try
{
if (pixbuf == IntPtr.Zero)
{
string gdkErrorMessage;
if (errorPtr != IntPtr.Zero)
{
GError error = Marshal.PtrToStructure <GError>(errorPtr);
gdkErrorMessage = error.message;
}
else
{
gdkErrorMessage = "Unknown error.";
}
throw new IOException($"{nameof(LibGdkPixBuf.gdk_pixbuf_new_from_stream)} error: {gdkErrorMessage}");
}
var source = GdkPixBufBitmapSource.Create(pixbuf);
pixbuf = IntPtr.Zero;
return(source);
}
finally
{
if (pixbuf != IntPtr.Zero)
{
LibGdkPixBuf.g_object_unref(pixbuf);
}
if (errorPtr != IntPtr.Zero)
{
LibGdkPixBuf.g_error_free(errorPtr);
}
}
}
public void Dispose()
{
LibGdkPixBuf.g_object_unref(pixbuf);
}
