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| Subject:
Dithered JPEG images
From: Sven Johnsson ####@####.#### Date: 13 Dec 2007 10:04:14 +0000 Message-Id: <47610394.9000809@lip-wifi.com> Hello, I am trying to display JPEG images with Nano-X version 0.9 . When I use GrDrawImageToFit() to draw a *.jpg - image it is displayed, BUT it is dithered (unwanted effect). My screen device has 16 bpp, and PNG images are displayed nicely without dithering. -How can I solve this? Thanks for reading my post, Best Regards, Sven Johnsson | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Subject:
Re: [nanogui] Dithered JPEG images
From: "Greg Haerr" ####@####.#### Date: 13 Dec 2007 22:18:08 +0000 Message-Id: <273201c83dd6$0361dce0$6401a8c0@winXP> : I am trying to display JPEG images with Nano-X version 0.9 . When I use : GrDrawImageToFit() to draw a *.jpg - image it is displayed, BUT it is : dithered (unwanted effect). My screen device has 16 bpp, and PNG images : are displayed nicely without dithering. Look at the jpeg image loader engine/image_jpeg.c and change the FASTJPEG (or similar) define near the top of the file. I think this used to default to 1 which caused dithering, but worked on all systems. Regards, Greg | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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