Abstract:

The OpenGL Library has not offer the function of text display and processing directly. Literature 4 provided a method of OpenGL drawing text based on GDI,but the efficiency was low and occupied too much of CPU time.Considering the feature of Windows multi-threading mechanism,some improvements are made,and a new method for text drawing in OpenGL based on multi-thread is proposed. This method can effectively utilize the advantages of multi-core processor,and add obvious advantages to high requirement of real-time or large quantities of text data drawing. Experimental results show that the application of this method can improve text drawing efficiency and improve user爷s experience.

Key words: OpenGL, GDI, multi-thread, text drawing, drawing efficiency