I try to put an image from GIMP into an embedded system using export. The c file created has a struct with width, height, bytes per pixel (bpp) and the data of the image. The total length is width*height*bbp+1. The bpp in default to 4 by GIMP. I has tried but fail to find an explanation of how the data is arranged. Can someone point me a direction?
In the very low level of pixel by pixel write to the display controller, one usually repeat image pixel height lines, and each line would have width/8 bytes times the bpp. Thus a 48x32 image, would have 24 bytes for each line and there are 32 lines. I try this rule but the image does not seem come out right. A 4-bytes bpp seems to indicated that the there are 4G (256*256*256*256) color but most embedded display can only do 64K color (256*256), I found a function by web search to convert 4 bytes to 2 bytes but not sure the formula would be correct? Is there an authoritative answer to this? Any help is appreciated. rgds, kfl. -- ----------------------------------------------------------------------------------------------------------- IT&C (HK) Ltd. www.itnc.com Tel:+852 6913 0049 PENIT (China) Ltd. www.penit.com : Tel: +86 755 26811370 E-Mail: [email protected] [email protected] SKYPE: kflee2000 QQ：129929-6015 19A, Seascape Plaza, 18 Taizi Road, Shekou, Shenzhen, PROC. **** ACW: Alternative Class of Webspace 另类网路空间 ***** www.itnc.com - Hong Kong Based HQ www.penit.com - Logistic Software Developer www.jpfree.com - ACW for Japan www.twfree.com - ACW for Taiwan www.cnfree.com - ACW for China www.asiafree.net - Free Business Card Site ---------------------------------------------------------------------------------------------
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