Intel Extensible Firmware Interface - Manual (Page 325)

Protocols — Console Support
Version 1.10 12/01/02 10-31
EFI_UGA_DRAW_PROTOCOL.Blt()
Summary
Blt a rectangle of pixels on the graphics screen. Blt stands for BLock Transfer.
Prototype
typedef struct {
UINT8 Blue;
UINT8 Green;
UINT8 Red;
UINT8 Reserved;
} EFI_UGA_PIXEL;
typedef struct {
EfiUgaVideoFill,
EfiUgaVideoToBltBuffer,
EfiUgaBltBufferToVideo,
EfiUgaVideoToVideo,
EfiUgaBltMax
} EFI_UGA_BLT_OPERATION;
typedef
EFI_STATUS
(EFIAPI *EFI_UGA_DRAW_PROTOCOL_BLT) (
IN EFI_UGA_DRAW_PROTOCOL
*This,
IN OUT EFI_UGA_PIXEL *BltBuffer, OPTIONAL
IN EFI_UGA_BLT_OPERATION BltOperation,
IN UINTN SourceX,
IN UINTN SourceY,
IN UINTN DestinationX,
IN UINTN DestinationY,
IN UINTN Width,
IN UINTN Height,
IN UINTN Delta OPTIONAL
);