Hi All I have recently created a Palm game that runs great on color devices (eg m130) but runs REALLY slow on a B/W device with an identical processor(eg m125). The problem is that I am using the same image format for both color (8 bit drawing mode) and grayscale (4 bit drawing mode), ie 8 bit color BMP images. I am pretty sure that the WinDrawBitmap and WinPaintBitmap functions are slow in the grayscale device (m125) because they probably have some format conversion stuff to do to convert my 8 bit color images to work in the 4 bit drawing mode. Can any of you graphics experts confirm my suspicions?
Now as to how to solve the problem. My first need is for a good image conversion utility that will allow me to save my 8 bit color BMP images into 4 bit grayscale images. Much to my annoyance, just about every Windows draw/paint program I have found does NOT support conversion to 4 bit grayscale. I tried Paint Shop Pro, Corel Photo-Paint, and some lesser known stuff I found on the web. There has to be a simple solution to this - Palm game authors must use this all the time. So, who can recommend a good, simple, hopefully inexpensive program/utility that will let me open my 8 bit color image, easily convert this to 4 bit grayscale, then save it as a new image? I also noticed that PilRC allows you to specify a transparent color for 8 bit color images and for bitmap families. It appears that this is not useful for 4 bit mode. Is it really the case that I must go back to using a separate mask image to achieve image transparency in 4 bit drawing mode? Or is it still possible somehow to specify a trnsparent gray level? Thanks Marc [EMAIL PROTECTED] _________________________________________________________________ Send and receive Hotmail on your mobile device: http://mobile.msn.com -- For information on using the Palm Developer Forums, or to unsubscribe, please see http://www.palmos.com/dev/support/forums/
