High efficiency method of side mixing and side display

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    • High efficiency method of side mixing and side display

      Due to THE MCU's RAM and ROM limitations, I wanted to use the pre-stored 4bit bitmap data to mix the 16-bit color and display as I mixed.The current method is to use GUI_DrawPixel() every time the color is mixed in the control's custom redraw function.One problem is that GUI_DrawPixel needs to send the set XY command to the screen every time, which is inefficient.Excuse me everybody has the method of what efficiency high point？ :thumbsup:

    • Hi,

      I don't really understand what you are trying to do... please specify.

      LXW wrote:

      I wanted to use the pre-stored 4bit bitmap data
      Which 4bit bitmap?

      GUI_DrawPixel() is pretty in efficient for drawing more than one pixel. You should use the GUI_FillRect() function.

      Regards,
      Sven
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    • I saved a 4bit 16th-order grayscale image, in which each pixel takes up 4bits of color.Actual display 16bit pixel color = saved 4bit 16-order grayscale data + 16-bit theme color.I want to send the coordinate area to the screen only once, and then send out every pixel color after blending until all pixel data is sent.