Bitmap images

[Dragoneyes718]

Does anybody know of a program that can convert to .raw, or if there is an editor that will allow you to save a bitmap as .raw?

[dmantione]

Netpbm is your friend: http://netpbm.sourceforge.net/

[Dragoneyes718]

Thats alot of stuff to sort through. I'm not entirely wure which to use. I am wanting .raw format because of the compatibility with PutImage in TP7.

[jdarling]

http://www.irfanview.com/

Best app I've found for this type of thing. Also works in batch mode, and is free. Now if you have money, then buy PSCS2 (PhotoShop CS2), its actually the best, but only a few of us developer geeks want to drop the cash on it .

[Dragoneyes718]

Thanks! Now if someone could help me get the syntax right for using BlockRead in conjunction with .raw files for use with Putimage.

Anybocy know how to do this?

[dmantione]

Which graphics mode do you use?

[Dragoneyes718]

VGA 640x480
16 color

[dmantione]

For 16 colour modes you need to use 16 bpp packed pixel format. So, convert you image to such a format. Then, getmem a buffer with 6 bytes plus the size of the raw image. Then:

* At offset 0, write a word containing the width.
* At offset 2, write a word containing the height

Then blockread the image at offset 6. Now you should be able to use putimage.

[Dragoneyes718]

How should I define the buffer?

[dmantione]

I think an untyped pointer is the best solution. A pointer to a byte can also be usefull.