Is using video memory in GPU or FPGA as circular buffer for display a good idea? -

Is using video memory in GPU or FPGA as circular buffer for display a good idea? -

the circular buffer display image in window. since reading/writing buffer display take time, read article using gpu video memory or fpga vga sram circular buffer.

but 1 problem can see there no easy way pass video memory (pointer) ui api such mfc or qt. in order that, need re-create content normal ram loses purpose.

so wonder if thought utilize video memory in gpu or fpga circular buffer display. if so, how can overcome issue above? clue experienced developer appreciated.

it thought utilize double buffer video memory. depends on scheme if necessary memory bandwidth avalible.

gpu fpga