A Blit block copy acceleration Qt graphics display method based on domestic GPU

Chuntian Hu

doi:10.1117/12.3035239

19 July 2024 A Blit block copy acceleration Qt graphics display method based on domestic GPU

Chuntian Hu

Proceedings Volume 13213, International Conference on Image Processing and Artificial Intelligence (ICIPAl 2024); 132131W (2024) https://doi.org/10.1117/12.3035239
Event: International Conference on Image Processing and Artificial Intelligence (ICIPAl2024), 2024, Suzhou, China

Abstract

In order to solve the problem of Qt graphics display performance, this paper proposes a method of accelerating Qt graphics display technology based on domestic GPU Blit block copy. This method overrides the blit block transfer copy function of domestic GPU under the embedded Qt graphics system, and uses Qt's QRegion ability to calculate the list of rectangular vectors of the dirty area to be redrawn in the Qt window system, perform DMA block copy of image source data to target video memory, and calls the domestic GPU function to immediately drive the data content in VRAM for refresh display. The experimental results show that the proposed method can significantly improve the performance of Qt graphics display.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Chuntian Hu "A Blit block copy acceleration Qt graphics display method based on domestic GPU", Proc. SPIE 13213, International Conference on Image Processing and Artificial Intelligence (ICIPAl 2024), 132131W (19 July 2024); https://doi.org/10.1117/12.3035239

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