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:
    • 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.