stemwin font display performance

vismay1989 · ‎2016-08-10

Posted on August 11, 2016 at 06:20

Hello Everybody,

I am using stm32f429 controller. I am using stemwin for graphics. I am using inbuilt LTDC controller for 640x480 16bpp RGB display. My system clock is running at 180MHz and RAM running at 90MHz .

I found a big performance gap between displaying Bitmap and Fonts.

to display 112x62 8bpp bitmap - 150us time taken

to display font in 120x32 area (using GUI_FONT_D24X32 font and 5 digits length of font) - 553us

I do understand that for drawing bitmaps ST has provided DMA2D based functions , so it is fast but , aren't there any optimization scope available with stemwin for font displays??

Vismay

#!stm32 #!stm32 #stemwin #stemwin

vismay1989 · ‎2016-08-12

Posted on August 13, 2016 at 06:14

Any one from ST ?

Can you provide support ?

Vismay