VMU Save Icon palette

[tonma]

Hi,

I'm writing my owns tool for converting picture.

I've some problems with the palette of the vmu save icon.

I have an array of Hex value :

const unsigned char vmu_bios_save_icon[544] ={
//Palette		
0xF2,0x24,0xF5,0x45,0xF2,0x2C,0xFA,0xBB,
0xF0,0x9F,0xF2,0x01,0xF5,0x68,0xF9,0xAD,
0xFE,0xEE,0xFF,0xFF,0xF7,0xDF,0xF6,0x31,
0xFE,0x61,0xFE,0xB0,0xF2,0x46,0xFA,0x71,

//Icon image
0x77,0x77,0x77,0x77,0x77,0x77,0x77,0x00,
0x00,0x07,0x77,0x77,0x77,0x77,0x77,0x77,
0x77,0x77,0x77,0x77,0x77,0x77,0x71,0x22,
...

And I use :

pkg.icon_cnt = 1;
memcpy(&pkg.icon_pal[0], vmu_bios_save_icon, 32);
pkg.icon_data = vmu_bios_save_icon + 32;

I use the ARGB4444 format 0xAR,0xGB and tested litte/big endian.
But I only have blue palette as you can see in the picture. Left original and right vmy icon

I use the define PACK4444(a, r, g, b) ( ((a>>4) << 12) | ((r>>4)<<8) | ((g>>4)<<4) | ((b>>4)) )

For example, the orange value
in ARGB = 255 255 73 26
in Hex = 0xFF,0x41

Green value = 73 decimal => (1001001b>>4)<<4 => 0100 => 0x4

[BlueCrab]

Your palette (in that code block) is in the wrong byte ordering. Remember, the palette data is 16-bit quantities in little endian byte ordering, so the data should be in the form of 0xGB, 0xAR, 0xGB, 0xAR, ... if you want to use all 8-bit quantities to represent it. As it is, your entire icon (save one color value) has transparency, and thus would have stuff bleeding through from the background of whatever it is displayed on.

[tonma]

Thanks.

I'm a little silly, I changed the little/big endian between the byte instead of the word. 0xAR,0xGB => 0xRA,0xBG

Now, that's works better.

[Ian Robinson]

Did you ever write this tool or release a version ?