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 Sujet du message: cc90 - BMP to MAP
MessagePosté: 05 Jan 2013, 10:43 
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I have been trying to use cc90 to convert a 300x200 4 colours bmp file to MAP. The file is 4bpp, I think I need a 2bpp bmp, but I have been traying several tools(gimp, imagemagick, grafx2) and searching on google on how to get a 2bpp bmp without luck...

Can someone help me on this?, it would be appreciated.


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MessagePosté: 05 Jan 2013, 18:09 
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No, a 4bpp should be okay. But with a palette of 4 colours, which means that you have to reduce the number of colours to 4.


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MessagePosté: 05 Jan 2013, 19:41 
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Prehisto a écrit:
No, a 4bpp should be okay. But with a palette of 4 colours, which means that you have to reduce the number of colours to 4.


Thanks prehisto, but I already have 4 colours, I did get a MAP file but when I tried to see it with xnview and Sam's plugin it just shows a black 320x200 screen...


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MessagePosté: 05 Jan 2013, 19:56 
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Could I have a link to your gfx or could you send me it by email ?


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MessagePosté: 05 Jan 2013, 20:16 
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W_oo_d a écrit:
did get a MAP file but when I tried to see it with xnview and Sam's plugin it just shows a black 320x200 screen...

Might it be a bug in the plugin? I haven't tested it with gfx produced by cc90.


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MessagePosté: 05 Jan 2013, 20:41 
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W_oo_d a écrit:
Thanks prehisto, but I already have 4 colours, I did get a MAP file but when I tried to see it with xnview and Sam's plugin it just shows a black 320x200 screen...

Samuel is right. Do you try to display it on an emulator with a simple LOADP ? If it works on an emulator (or a real computer), no need to change anything in my mixture...


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MessagePosté: 06 Jan 2013, 13:13 
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I have tried with LOADP and it shows a black screen too. :L


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MessagePosté: 06 Jan 2013, 13:30 
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Send it to me, then.

Or at least, check if there are some 'non-black' datas in the MAP with an hexadecimal editor.

PS : are you sure that the BMP is exactly 320x200 ? Sometimes, a range of pixels more makes the difference...


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MessagePosté: 06 Jan 2013, 14:28 
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the map file I get:

00 00 B0 00 00 00 27 18 FF 00 FF 00 FF 00 FF 00 FF 00 FF 00 FF 00 FF 00 FF 00 FF 00 FF 00 FF 00 FF 00 FF 00 FF 00 FF 00 FF 00 FF 00 FF 00 FF 00 FF 00 FF 00 FF 00 FF 00 FF 00 FF 00 FF 00 FF 00 FF 00 FF 00 FF 00 5F 00 00 00 FF 00 FF 00 FF 00 FF 00 FF 00 FF 00 FF 00 FF 00 FF 00 FF 00 FF 00 FF 00 FF 00 FF 00 FF 00 FF 00 FF 00 FF 00 FF 00 FF 00 FF 00 FF 00 FF 00 FF 00 FF 00 FF 00 FF 00 FF 00 FF 00 FF 00 FF 00 5F 00 00 00 00 00 00 00 0C 00 02 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 A5 5A FF 00 00 00 00

the bmp details:
testenovo.bmp BMP 320x200 320x200+0+0 4-bit sRGB 4c 32.1KB 0.000u 0:00.000


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MessagePosté: 06 Jan 2013, 14:39 
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Finally it worked!

I loaded the bmp file in irfanview and then I saw that the resultion was 72x72 and I put it to 0x0 then saved the file and it worked.

This is strange as I created the files on gimp with dpi 0x0 but then when saved they all are 72x72...

:D


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MessagePosté: 06 Jan 2013, 14:41 
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I'm unforgivable. I had the same problem, and forgot everything about that.


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MessagePosté: 06 Jan 2013, 14:43 
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well the info is here and ppl can find it :)

Thanks for trying to help


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MessagePosté: 06 Jan 2013, 15:52 
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Still not all is well.... :eek:

I can convert a 320x200 16 colours bmp file to 40 columns mode

and also a 160x200x16 bmp to mode 160x200 16 colours

but when I try to convert a 320x200 bmp to 4 colours mode I always get a 40 columns mode map file. :evil:

my bmp file is 320x200, 4bpp, 4 colours....


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MessagePosté: 06 Jan 2013, 16:10 
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The value of bmp.biClrImportant (offset 50 (4 bytes) from start of BMP file) ?


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MessagePosté: 06 Jan 2013, 16:35 
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Prehisto a écrit:
The value of bmp.biClrImportant (offset 50 (4 bytes) from start of BMP file) ?


00 00 00 7D


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