| Value | Meaning |
|---|---|
| EfiBltVideoFill | Write data from the BltBuffer pixel (0, 0) directly to every pixel of the video display rectangle (DestinationX, DestinationY) (DestinationX + Width, DestinationY + Height). Only one pixel will be used from the BltBuffer. Delta is NOT used. |
| EfiBltVideoToBltBuffer | Read data from the video display rectangle (SourceX, SourceY) (SourceX + Width, SourceY + Height) and place it in the BltBuffer rectangle (DestinationX, DestinationY ) (DestinationX + Width, DestinationY + Height). If DestinationX or DestinationY is not zero then Delta must be set to the length in bytes of a row in the BltBuffer. |
| EfiBltBufferToVideo | Write data from the BltBuffer rectangle (SourceX, SourceY) (SourceX + Width, SourceY + Height) directly to the video display rectangle (DestinationX, DestinationY) (DestinationX + Width, DestinationY + Height). If SourceX or SourceY is not zero then Delta must be set to the length in bytes of a row in the BltBuffer. |
| EfiBltVideoToVideo | Copy from the video display rectangle (SourceX, SourceY) (SourceX + Width, SourceY + Height) to the video display rectangle (DestinationX, DestinationY) (DestinationX + Width, DestinationY + Height). The BltBuffer and Delta are not used in this mode. |
| EfiGraphicsOutputBltOperationMax |