Graphics Fun

[tsh73]

Tiles are 100*100 pixels
24 bit bmp
30054 bytes
I just saved from paint as bmp and got this format.
Program uses only one tile, just historically there were 3: diadonal 4 color, sunflower adapted to QBcolors and full-color one.

Probably running with ctrl f5 (light debug) could show offending line on error.

[plus]

This is what I get for tile2.bmp Ctrl+F5

[tsh73]

B+,
Tile you got from site is in PNG format.
You likely saved it as *.BMP, but it is still PNG inside.

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EDIT:
I just checked 3 different image posting sites. All of them converted BMP to PNG!!! :((

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So sub reading width height returns bogus values (I got exactly this too)
Then it tries dimension huge array and dies.

Open this file in Paint and SaveAs - select format "24 bit bitmap". Jus did it - worked for me (Win 10 home 32 bit)

[plus]

Apr 2, 2022 13:04:56 GMT tsh73 said:

B+,
Tile you got from site is in PNG format.
You likely saved it as *.BMP, but it is still PNG inside.

---

EDIT:
I just checked 3 different image posting sites. All of them converted BMP to PNG!!! (

---

So sub reading width height returns bogus values (I got exactly this too)
Then it tries dimension huge array and dies.

Open this file in Paint and SaveAs - select format "24 bit bitmap". Jus did it - worked for me (Win 10 home 32 bit)

Yes, that did the trick! Both code versions and all data blocks are working as expected. Guess I had right idea just picked the wrong bit format for BMP (now I see you did say 24 bit BMP with Ctrl + F5 suggestion, sorry I missed that).

Like I said at LB, this is really impressive, beyond what I thought JB capable (then I was just going by screen shots, now I know it works in JB for sure).

@carl might consider this as advanced demo for JB.

[tsh73]

will just add error checking in program posted
Saying
 Not a valid BMP file, check first 10 bytes: .PNG......

Program needs 100x100 BMP file 24 bit per pixel
Open your picture in Paint and Save As 24 bit BMP file

-=* press Enter to quit *=-


*done*