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Wiki > Main > RockboxGraphicalUIDesign

---+!! Rockbox Graphical UI Design

Well i've decided i want to create my own theme and edit the graphics (ala boot logo/usb logo). With the help of t0mas and several other fellows on the IRC channel i've managed to learn how to use the CVS and devkit within a few hours, so give me a break if i get some things wrong here. ;)

I actually managed to create a logo (test logo) and replace the USB logo in screens.c, but after looking at it in the simulater its come out very wrong. There could be a 100 reasons why its not working, so i'm going to start by asking exactly WHAT specifications rockbox needs the bmp's to be in.

|*question*|*answer*|
|How many colors|2 (support for multicolor bitmaps is still distant)|
|How big|Individual for each image. (See source code.)|
|What format|1 bit BMP converts easily to the internal rockbox format with the bmp2rb tool|
|What colors|black and white|
|Where are the images stored?|They are stored as arrays in Rockbox source code.|

---+++ Creating Logo's In Photoshop

First, get the exact size of the logo you are going to replace by finding it in the mass of *.c source files, its width and length are provided in there along with the code you will soon be replacing.

Hop into PS and correct the image size.

Go to _Image>Mode_ and select Bitmap, leave the options that come up and push ok.

Your set, simply stick to using the following supported colors:

#FFFFFF

#000000

The following colors are *ment* to be the colors that will be supported once 4-bit greyscale completely works.

#6E6E6E *<< Doesn't work yet*

#DCDCDC *<< Doesn't work yet*

Once you've created your fantastic logo you save it as a *.BMP, use bmp2rb and paste the new code over the old.

*Note!!!!* The colors might get inverted when converting, so black becomes white. Remember that when creating your logo!

I	Attachment	Action	Size	Date	Who	Comment
jpg	untitled1copy2un.jpg	manage	21.9 K	21 Mar 2005 - 12:01	ScottRichmond

r9 - 22 Mar 2005 - 10:08:18 - DanielStenberg