A few q's about bitmaps and WPS's.

[swunk]

I'm looking to make a certain WPS, and need a few things clarified.

1.Bitmaps.
What is the easiest way to make one? I think I read that they had to have one colour per pixel, so can I just make any black and white image in paint?

2.X and Y.
i)When placing bmps on the WPS, you need to specify the X and Y coordinates. Does it work like VB does, where (0,0) is the top left hand corner? Or is (0,0) the middle of the screen, meaning you can have negative values?

ii)What part of the image will be on the coordinates? The exact middle or one of the corners. If I want and image to take up the entire screen do I type (0,0) or whatever the middle of the screen would be.

iii)What are the limits of the screen? What are the coordinates of the bottom right hand corner?(assuming that (0,0) is the top right.)


I think that's about it, hope it makes sense and thanks for any help.

[NPswimdude500]

1. yes
2. like VB, (0,0) is the top left corner
3. if you want an image that's 20 pixels wide to touch the edge of the right side, the x coordinate would be 150. if you wanted that image to be 5 pixels down from the top, the y coordinate would be 5.
4. screen is 160x128

[Ego]

if it goes by pixel, the H300 screen is 220 by 176

-ego

[swunk]

Alright, so if I make a bmp that will take up the whole screen do I make it 160x128 pixels, or 220x176 pixels? And, what coordinates do I set so that it takes up the whole screen? 0,0 or whatever the middle of the screen would be?

[Step666]

From what other people have written, it sounds like to get a bmp that covers the entire screen, you make it 220x176 and position it at 0,0.

[swunk]

Alrighty thanks

[andrewmel]

I think the co-ords are from the top left as others have said, and also refer to the top left corner of the bmp.

a

[NPswimdude500]

oops! thought this was in the 1xx forums...sorry bout that! 220x176 is the correct resolution

[swunk]

Well I finnaly managed to finish the background picture after lot's of stuffing around, but when I tested it it on the iriver, with just the background.mbp as the WPS, it was inverted. Does anyone know how to fix this?

[Ego]

invert the .bmp image?

-EGO

[swunk]

That will most likely work, but any reason why it was inverted in the first place?

[andrewmel]

It seems that at least the wps inverts all images.

Inverting in a graphics editor does indeed fix the problem.

a

[swunk]

Thanks

........

[Judge]

Originally Posted by swunk

Well I finnaly managed to finish the background picture after lot's of stuffing around, but when I tested it it on the iriver, with just the background.mbp as the WPS, it was inverted. Does anyone know how to fix this?

I had that too when I customized some iAmp bmps with Photoshop. I think it's because when I save the bmps again, I save with 16 or 24 or 32 bit. Rockbox will only work properly with 1bit (monochrome) files.

But photoshop can't save as a monochrome bmp (very weird). It's best to use paint. Save as -> choose bmp -> monochrome. That works for me.

[Denny]

Originally Posted by Judge

But photoshop can't save as a monochrome bmp (very weird). It's best to use paint. Save as -> choose bmp -> monochrome. That works for me.

Photoshop can save monochrome bitmaps but you have to change the image mode to 'bitmap' (instead of RGB) befor saving.

[swunk]

I used paint, and they were ti was monochrome. But it's fixed now anyway