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/*++
Copyright (c) 2006, Intel Corporation
All rights reserved. This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
http://opensource.org/licenses/bsd-license.php
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
Module Name:
GraphicsOutput.h
Abstract:
Graphics Output Protocol from the UEFI 2.0 specification.
Abstraction of a very simple graphics device.
--*/
#ifndef __GRAPHICS_OUTPUT_H__
#define __GRAPHICS_OUTPUT_H__
#include EFI_PROTOCOL_DEFINITION (UgaDraw)
#define EFI_GRAPHICS_OUTPUT_PROTOCOL_GUID \
{ \
0x9042a9de, 0x23dc, 0x4a38, 0x96, 0xfb, 0x7a, 0xde, 0xd0, 0x80, 0x51, 0x6a \
}
typedef struct _EFI_GRAPHICS_OUTPUT_PROTOCOL EFI_GRAPHICS_OUTPUT_PROTOCOL;
typedef struct {
UINT32 RedMask;
UINT32 GreenMask;
UINT32 BlueMask;
UINT32 ReservedMask;
} EFI_PIXEL_BITMASK;
typedef enum {
PixelRedGreenBlueReserved8BitPerColor,
PixelBlueGreenRedReserved8BitPerColor,
PixelBitMask,
PixelBltOnly,
PixelFormatMax
} EFI_GRAPHICS_PIXEL_FORMAT;
typedef struct {
UINT32 Version;
UINT32 HorizontalResolution;
UINT32 VerticalResolution;
EFI_GRAPHICS_PIXEL_FORMAT PixelFormat;
EFI_PIXEL_BITMASK PixelInformation;
UINT32 PixelsPerScanLine;
} EFI_GRAPHICS_OUTPUT_MODE_INFORMATION;
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
)
/*++
Routine Description:
Return the current video mode information.
Arguments:
This - Protocol instance pointer.
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.
Returns:
EFI_SUCCESS - Mode information returned.
EFI_DEVICE_ERROR - A hardware error occurred trying to retrieve the video mode.
EFI_NOT_STARTED - Video display is not initialized. Call SetMode ()
EFI_INVALID_PARAMETER - One of the input args was NULL.
--*/
;
typedef
EFI_STATUS
(EFIAPI *EFI_GRAPHICS_OUTPUT_PROTOCOL_SET_MODE) (
IN EFI_GRAPHICS_OUTPUT_PROTOCOL * This,
IN UINT32 ModeNumber
)
/*++
Routine Description:
Return the current video mode information.
Arguments:
This - Protocol instance pointer.
ModeNumber - The mode number to be set.
Returns:
EFI_SUCCESS - Graphics mode was changed.
EFI_DEVICE_ERROR - The device had an error and could not complete the request.
EFI_UNSUPPORTED - ModeNumber is not supported by this device.
--*/
;
typedef EFI_UGA_PIXEL EFI_GRAPHICS_OUTPUT_BLT_PIXEL;
typedef union {
EFI_GRAPHICS_OUTPUT_BLT_PIXEL Pixel;
UINT32 Raw;
} EFI_GRAPHICS_OUTPUT_BLT_PIXEL_UNION;
typedef enum {
EfiBltVideoFill,
EfiBltVideoToBltBuffer,
EfiBltBufferToVideo,
EfiBltVideoToVideo,
EfiGraphicsOutputBltOperationMax
} EFI_GRAPHICS_OUTPUT_BLT_OPERATION;
typedef
EFI_STATUS
(EFIAPI *EFI_GRAPHICS_OUTPUT_PROTOCOL_BLT) (
IN EFI_GRAPHICS_OUTPUT_PROTOCOL * This,
IN EFI_GRAPHICS_OUTPUT_BLT_PIXEL * BltBuffer, OPTIONAL
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 OPTIONAL
);
/*++
Routine Description:
The following table defines actions for BltOperations:
EfiBltVideoFill - Write data from the BltBuffer pixel (SourceX, SourceY)
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.
Arguments:
This - Protocol instance pointer.
BltBuffer - Buffer containing data to blit into video buffer. This
buffer has a size of Width*Height*sizeof(EFI_GRAPHICS_OUTPUT_BLT_PIXEL)
BltOperation - Operation to perform on BlitBuffer and video memory
SourceX - X coordinate of source for the BltBuffer.
SourceY - Y coordinate of source for the BltBuffer.
DestinationX - X coordinate of destination for the BltBuffer.
DestinationY - Y coordinate of destination for the BltBuffer.
Width - Width of rectangle in BltBuffer in pixels.
Height - Hight of rectangle in BltBuffer in pixels.
Delta -
Returns:
EFI_SUCCESS - The Blt operation completed.
EFI_INVALID_PARAMETER - BltOperation is not valid.
EFI_DEVICE_ERROR - A hardware error occured writting to the video
buffer.
--*/
;
typedef struct {
UINT32 MaxMode;
UINT32 Mode;
EFI_GRAPHICS_OUTPUT_MODE_INFORMATION *Info;
UINTN SizeOfInfo;
EFI_PHYSICAL_ADDRESS FrameBufferBase;
UINTN FrameBufferSize;
} EFI_GRAPHICS_OUTPUT_PROTOCOL_MODE;
typedef struct _EFI_GRAPHICS_OUTPUT_PROTOCOL {
EFI_GRAPHICS_OUTPUT_PROTOCOL_QUERY_MODE QueryMode;
EFI_GRAPHICS_OUTPUT_PROTOCOL_SET_MODE SetMode;
EFI_GRAPHICS_OUTPUT_PROTOCOL_BLT Blt;
EFI_GRAPHICS_OUTPUT_PROTOCOL_MODE *Mode;
} EFI_GRAPHICS_OUTPUT_PROTOCOL;
extern EFI_GUID gEfiGraphicsOutputProtocolGuid;
#endif
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