GraphicsOutput.h File Reference

Data Structures
struct	EFI_PIXEL_BITMASK
struct	EFI_GRAPHICS_OUTPUT_MODE_INFORMATION
struct	EFI_GRAPHICS_OUTPUT_BLT_PIXEL
union	EFI_GRAPHICS_OUTPUT_BLT_PIXEL_UNION
struct	EFI_GRAPHICS_OUTPUT_PROTOCOL_MODE
struct	_EFI_GRAPHICS_OUTPUT_PROTOCOL

Macros
#define	EFI_GRAPHICS_OUTPUT_PROTOCOL_GUID

Typedefs
typedef struct _EFI_GRAPHICS_OUTPUT_PROTOCOL	EFI_GRAPHICS_OUTPUT_PROTOCOL
typedef EFI_STATUS(EFIAPI *	EFI_GRAPHICS_OUTPUT_PROTOCOL_QUERY_MODE )(IN EFI_GRAPHICS_OUTPUT_PROTOCOL *This, IN UINT32 ModeNumber, OUT UINTN *SizeOfInfo, OUT EFI_GRAPHICS_OUTPUT_MODE_INFORMATION **Info)
typedef EFI_STATUS(EFIAPI *	EFI_GRAPHICS_OUTPUT_PROTOCOL_SET_MODE )(IN EFI_GRAPHICS_OUTPUT_PROTOCOL *This, IN UINT32 ModeNumber)
typedef EFI_STATUS(EFIAPI *	EFI_GRAPHICS_OUTPUT_PROTOCOL_BLT )(IN EFI_GRAPHICS_OUTPUT_PROTOCOL *This, IN EFI_GRAPHICS_OUTPUT_BLT_PIXEL *BltBuffer, IN EFI_GRAPHICS_OUTPUT_BLT_OPERATION BltOperation, IN UINTN SourceX, IN UINTN SourceY, IN UINTN DestinationX, IN UINTN DestinationY, IN UINTN Width, IN UINTN Height, IN UINTN Delta)

Enumerations
enum	EFI_GRAPHICS_PIXEL_FORMAT {   PixelRedGreenBlueReserved8BitPerColor, PixelBlueGreenRedReserved8BitPerColor, PixelBitMask, PixelBltOnly,   PixelFormatMax }
enum	EFI_GRAPHICS_OUTPUT_BLT_OPERATION {   EfiBltVideoFill, EfiBltVideoToBltBuffer, EfiBltBufferToVideo, EfiBltVideoToVideo,   EfiGraphicsOutputBltOperationMax }

Variables
EFI_GUID	gEfiGraphicsOutputProtocolGuid

Detailed Description

Graphics Output Protocol from the UEFI 2.0 specification.

Abstraction of a very simple graphics device.

Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.
SPDX-License-Identifier: BSD-2-Clause-Patent

Macro Definition Documentation

#define EFI_GRAPHICS_OUTPUT_PROTOCOL_GUID

Value:

{ \
    0x9042a9de, 0x23dc, 0x4a38, {0x96, 0xfb, 0x7a, 0xde, 0xd0, 0x80, 0x51, 0x6a } \
  }

Typedef Documentation

typedef struct _EFI_GRAPHICS_OUTPUT_PROTOCOL EFI_GRAPHICS_OUTPUT_PROTOCOL

typedef EFI_STATUS(EFIAPI * EFI_GRAPHICS_OUTPUT_PROTOCOL_BLT)(IN EFI_GRAPHICS_OUTPUT_PROTOCOL *This, IN EFI_GRAPHICS_OUTPUT_BLT_PIXEL *BltBuffer, IN EFI_GRAPHICS_OUTPUT_BLT_OPERATION BltOperation, IN UINTN SourceX, IN UINTN SourceY, IN UINTN DestinationX, IN UINTN DestinationY, IN UINTN Width, IN UINTN Height, IN UINTN Delta)

Blt a rectangle of pixels on the graphics screen. Blt stands for BLock Transfer.

Parameters

This	Protocol instance pointer.
BltBuffer	The data to transfer to the graphics screen. Size is at least Width*Height*sizeof(EFI_GRAPHICS_OUTPUT_BLT_PIXEL).
BltOperation	The operation to perform when copying BltBuffer on to the graphics screen.
SourceX	The X coordinate of source for the BltOperation.
SourceY	The Y coordinate of source for the BltOperation.
DestinationX	The X coordinate of destination for the BltOperation.
DestinationY	The Y coordinate of destination for the BltOperation.
Width	The width of a rectangle in the blt rectangle in pixels.
Height	The height of a rectangle in the blt rectangle in pixels.
Delta	Not used for EfiBltVideoFill or the EfiBltVideoToVideo operation. If a Delta of zero is used, the entire BltBuffer is being operated on. If a subrectangle of the BltBuffer is being used then Delta represents the number of bytes in a row of the BltBuffer.

Return values

EFI_SUCCESS	BltBuffer was drawn to the graphics screen.
EFI_INVALID_PARAMETER	BltOperation is not valid.
EFI_DEVICE_ERROR	The device had an error and could not complete the request.

typedef EFI_STATUS(EFIAPI * EFI_GRAPHICS_OUTPUT_PROTOCOL_QUERY_MODE)(IN EFI_GRAPHICS_OUTPUT_PROTOCOL *This, IN UINT32 ModeNumber, OUT UINTN *SizeOfInfo, OUT EFI_GRAPHICS_OUTPUT_MODE_INFORMATION **Info)

Returns information for an available graphics mode that the graphics device and the set of active video output devices supports.

Parameters

This	The EFI_GRAPHICS_OUTPUT_PROTOCOL instance.
ModeNumber	The mode number to return information on.
SizeOfInfo	A pointer to the size, in bytes, of the Info buffer.
Info	A pointer to callee allocated buffer that returns information about ModeNumber.

Return values

EFI_SUCCESS	Valid mode information was returned.
EFI_DEVICE_ERROR	A hardware error occurred trying to retrieve the video mode.
EFI_INVALID_PARAMETER	ModeNumber is not valid.

typedef EFI_STATUS(EFIAPI * EFI_GRAPHICS_OUTPUT_PROTOCOL_SET_MODE)(IN EFI_GRAPHICS_OUTPUT_PROTOCOL *This, IN UINT32 ModeNumber)

Set the video device into the specified mode and clears the visible portions of the output display to black.

Parameters

This	The EFI_GRAPHICS_OUTPUT_PROTOCOL instance.
ModeNumber	Abstraction that defines the current video mode.

Return values

EFI_SUCCESS	The graphics mode specified by ModeNumber was selected.
EFI_DEVICE_ERROR	The device had an error and could not complete the request.
EFI_UNSUPPORTED	ModeNumber is not supported by this device.

Enumeration Type Documentation

enum EFI_GRAPHICS_OUTPUT_BLT_OPERATION

actions for BltOperations

Enumerator
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

enum EFI_GRAPHICS_PIXEL_FORMAT

Enumerator
PixelRedGreenBlueReserved8BitPerColor	A pixel is 32-bits and byte zero represents red, byte one represents green, byte two represents blue, and byte three is reserved. This is the definition for the physical frame buffer. The byte values for the red, green, and blue components represent the color intensity. This color intensity value range from a minimum intensity of 0 to maximum intensity of 255.
PixelBlueGreenRedReserved8BitPerColor	A pixel is 32-bits and byte zero represents blue, byte one represents green, byte two represents red, and byte three is reserved. This is the definition for the physical frame buffer. The byte values for the red, green, and blue components represent the color intensity. This color intensity value range from a minimum intensity of 0 to maximum intensity of 255.
PixelBitMask	The Pixel definition of the physical frame buffer.
PixelBltOnly	This mode does not support a physical frame buffer.
PixelFormatMax	Valid EFI_GRAPHICS_PIXEL_FORMAT enum values are less than this value.

Variable Documentation

EFI_GUID gEfiGraphicsOutputProtocolGuid