Abstract: Provided are a method for determining drawing data of a map element, an electronic device, and a non-transitory computer-readable storage medium. The specific implementation scheme includes determining a reference point position of a non-link element according to a relationship between the non-link element and adjacent link elements in an electronic map and based on lane edge positions of the adjacent link elements; determining a direction of the non-link element according to the relationship between the non-link element and the adjacent link elements; and determining drawing data of the non-link element according to the reference point position and the direction of the non-link element, where the drawing data is used for drawing and rendering an image of the non-link element in a link when the drawing data is loaded by a map interface.

Abstract: A display method for use in multi-operating systems includes: in a host operating system, allocating a native window to each guest operating system; in the guest operating system, requesting a physical continuous memory (PCM) sub-region corresponding to a window from the host operating system when the window is newly created; in the host operating system, allocating the PCM sub-region to the guest operating system; in the guest operating system, storing rendered data to the PCM sub-region when the newly created window is rendered; and in the host operating system, rendering the native window corresponding to the guest operating system based on the data in the PCM sub-region when a display request from the guest operating system is monitored, and in the host operating system, displaying the native window.

Abstract: A video display method includes: allocating a native window to each guest operating system; receiving a request for establishing a physical contiguous memory PCM sub-region corresponding to a new window from the guest operating system; allocating a PCM sub-region to the guest operating system, returning a descriptor of the PCM sub-region to the guest operating system, the descriptor being used for instructing a corresponding hardware codec design to write display data into the PCM sub-region; receiving a display request from the guest operating system; and rendering and displaying the native window corresponding to the guest operating system based on the display request and the data in the PCM sub-region.

Abstract: A memory access method for use in multi-operating systems includes: in a guest operating system, requesting to share a memory from a host operating system when it is monitored that software needs to share the memory; in the host operating system, allocating a memory share sub-region to the guest operating system by a memory share management module Gralloc; in the host operating system, returning an index value of the memory share sub-region to the guest operating system; and in the guest operating system, returning an address of a mapping sub-region to the software upon mapping the memory share sub-region corresponding to the index value to the guest operating system by an emulation processor QEMU.

Abstract: A video display method includes: allocating a native window to each guest operating system; receiving a request for establishing a physical contiguous memory PCM sub-region corresponding to a new window from the guest operating system; allocating a PCM sub-region to the guest operating system, returning a descriptor of the PCM sub-region to the guest operating system, the descriptor being used for instructing a corresponding hardware codec design to write display data into the PCM sub-region; receiving a display request from the guest operating system; and rendering and displaying the native window corresponding to the guest operating system based on the display request and the data in the PCM sub-region.

Abstract: A display method for use in multi-operating systems includes: in a host operating system, allocating a native window to each guest operating system; in the guest operating system, requesting a physical continuous memory (PCM) sub-region corresponding to a window from the host operating system when the window is newly created; in the host operating system, allocating the PCM sub-region to the guest operating system; in the guest operating system, storing rendered data to the PCM sub-region when the newly created window is rendered; and in the host operating system, rendering the native window corresponding to the guest operating system based on the data in the PCM sub-region when a display request from the guest operating system is monitored, and in the host operating system, displaying the native window.