The DIVE Sample illustrates the use of direct interface video extensions (DIVE), which provides optimized blitting performance for motion video subsystems and applications that perform rapid screen updates in the OS/2 PM and full-screen environments. Using DIVE interfaces, applications can either write directly to video memory or use the DIVE blitter. The DIVE blitter will take advantage of acceleration hardware when present and applicable to the function being performed.
Using DIVE, the sample program blits a series of 16 compressed 256-color bit maps to the screen. For more information on how to use the DIVE functions included in this sample program, see Direct Interface Video Extensions (DIVE).
Note: The DIVE sample requires OS/2 Warp, Version 3 in order to execute properly. The files for the samples will be installed when the samples are selected, but Workplace Shell objects will not be created for them if the installed operating system is not OS/2 Warp, Version 3.
The OS/2 Warp color support defaults to 16 colors. This means that your setup needs to be updated, otherwise the DIVE sample will not run.
The maximum window size of this sample has been limited to 640x480 because larger window sizes may cause excessive swapping on machines with less than 16MB.