Method and system for directly displaying drm of video and UI based on Wayland protocol

Abstract

The invention discloses a drm direct display method for a video and a UI based on a Wayland protocol, and the method comprises the steps that a video end applies to a Weston open source library for creating a first drawing surface of a video window through a standard desktop protocol, and generates a video buffer region corresponding to the first drawing surface; the UI end applies for creating a second drawing surface of the UI window to the Weston open source library through an ylvideo-shell-protocol internal protocol, and a UI buffer area corresponding to the second drawing surface is generated; after receiving display requests of a video end and a UI end, the Weston open source library submits a video buffer area and a UI buffer area to a hardware layer unit of a direct rendering manager according to a sequence of creating a first drawing surface and a sequence of creating a second drawing surface, and submits a display request of a DRM (Digital Rights Manager); and the DRM synthesizes the video buffer area and the video buffer area in a fixed hardware pipeline according to the display request so as to output a mixed video and UI. According to the invention, video / UI mixed output under the scene of double-screen 4K resolution is realized, the video can reach 60 frames, and the UI can reach 30 frames.

Description

technical field [0001] The present invention relates to the technical field of video and UI rendering management, in particular to a drm direct display method and system of video and UI based on Wayland protocol, and a computer-readable storage medium. Background technique [0002] The more common scene in the video system is that the video and UI are superimposed and mixed for output, and the video picture page is divided into single-sided full-screen, 1+N, and equal layouts. Therefore, a video / UI hybrid display module is required to realize the corresponding functions. Under the Linux system, the more common display drivers are divided into fbdev and drm (Direct Rendering Manager, direct rendering manager). The application access methods corresponding to the two display drivers are Framebuffer and libdrm respectively. Common solutions are as follows: [0003] FrameBuffer scheme: use CPU (Central Processing Unit, central processing unit) or GPU (Graphics Processing Unit, g...

AI Technical Summary

Problems solved by technology

[0006] The object of the present invention is to provide a drm direct display method and system of video and UI based on the Wayland protocol, and a computer-readable storage medium, so as to solve the above-mentioned video / UI mixed display, the performance consumption is large, and the window level of the video and UI cannot It is guaranteed that the video is easily displayed on the UI

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