1. Converting .BMP to a data file without a header.
I think what I want someone has already done, but I don't know who and
where:
In my game, all the bitmap files have the same palette. I was trying to
do
routines to write and read a data file containing only the size of the
image and each pixels' palette color index. So then I would have my own
image format, much smaller since it wouldn't contain the color table,
bitcount, etc...
Does someone here have this kind of code ?
Thanks,
---
Ricardo Niederberger Cabral
<rnc at infolink.com.br>
2. Re: Converting .BMP to a data file without a header.
Ricardo Niederberger Cabral wrote:
> image format, much smaller since it wouldn't contain the color table,
> bitcount, etc...
> Does someone here have this kind of code ?
Try using my compression routines. If images are small, you'll not even
notice the uncompressing time. They're coded to compress files, but the
algorithm can easily modified to input filean and output to memory.
Experiment with them.
Bye,
Daniel Berstein
3. Re: Converting .BMP to a data file without a header.
> I think what I want someone has already done, but I don't know who and
> where:
>
> In my game, all the bitmap files have the same palette. I was trying t
o do
> routines to write and read a data file containing only the size of the
> image and each pixels' palette color index. So then I would have my own
> image format, much smaller since it wouldn't contain the color table,
> bitcount, etc...
> Does someone here have this kind of code ?
That's easy, just use my Euphoria Data Object Manager...
This loads your image like you would normally, and then saves it
with compression without the pallete info:
include edom.e
-- edo_save(), edo_load()
include image.e
-- load_bmp () or something
sequence my_pic_data
-- A sequence to store it
my_pic_data = load_bmp("my_pic.bmp") -- Look up the
routine...
my_pic_data = my_pic_data[2] --
Getting rid of pallete
if not edo_save("my_pic.edo" , my_pic_data) --
Saving the file
puts(1,"File could not be saved\n") -- Oops,
write error!
else
puts(1,"File is saved!\n")
-- File is saved!!!
end if
If you would want to load the grafix in your program, type this:
include edom.e
sequence my_pic_data_again
my_pic_data_again = edo_load("my_pic.edo")
if my_pic_data_again = {} then
puts (1,"Oops, file is not valid")
end if
You could even save multiple grafix in one file and stuff like that,
the routine just save the sequence data and it's structure
compressed!!
