load files in memory

[farcodev_]

Hi, is anyone know a component (free) which allow to load files in memory and use them after.

I need to load .3ds object in memory for multiple uses and avoid a lot of i/o on hd

Thank you !

[WILL]

Why can't you just write something small using TStream?

[Andreaz]

More exactly TMemoryStream:

[code=Pascal]

FS:= TFileStream.Create(FileName, fmOpenRead);

Stream:= TMemoryStream.Create;
Stream.Size:= FS.Size;
Stream.CopyFrom(FS, FS.Size);
FS.Free;

// loaded into memory
Stream.Position:=0;
Stream.Read(value, sizeof(Integer));
...
Stream.Free;

[/code]

[noeska]

You can use glmodel: http://www.noeska.com/dogl/glModel.aspx
it can even load .3ds from memorystreams :-) Even when loading a .3ds from file a stream is used and when modifying the mesh it is only changed in memory.
Only the saving of a .3ds file is a work in progres. But you can save to milkshape ascii and obj even when the file is loaded as an .3ds .

[farcodev_]

First, thank you for all your answers

About TStreams it's because i never used them But it seems cool since if i remember i can load 3ds file from a stream (i use GLScene with a custom 3ds loader from Dave Gravel), so i'll test that !

for glmodel i don't know how to use it with GLScene

Anyway thank you it will save loading time ! (beside to reduce the objects polygons too )

[farcodev_]

yeehaa the custom loader support tstream too, let's the party started !

Thank you again

[farcodev_]

(useless post sorry i had a problem but i found the solution)

edit: wow i saved 14 mb of memory by put the xml file containing user's interface texts in memory ! w/o speak of less disk access and a gain in speed