mirror of https://github.com/acidanthera/audk.git
195 lines
7.4 KiB
C
195 lines
7.4 KiB
C
/** @file
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Graphics Output Protocol from the UEFI 2.0 specification.
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Abstraction of a very simple graphics device.
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Copyright (c) 2006, Intel Corporation
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All rights reserved. This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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**/
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#ifndef __GRAPHICS_OUTPUT_H__
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#define __GRAPHICS_OUTPUT_H__
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#include <PiDxe.h>
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#define EFI_GRAPHICS_OUTPUT_PROTOCOL_GUID \
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{ \
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0x9042a9de, 0x23dc, 0x4a38, {0x96, 0xfb, 0x7a, 0xde, 0xd0, 0x80, 0x51, 0x6a } \
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}
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typedef struct _EFI_GRAPHICS_OUTPUT_PROTOCOL EFI_GRAPHICS_OUTPUT_PROTOCOL;
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typedef struct {
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UINT32 RedMask;
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UINT32 GreenMask;
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UINT32 BlueMask;
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UINT32 ReservedMask;
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} EFI_PIXEL_BITMASK;
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typedef enum {
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PixelRedGreenBlueReserved8BitPerColor,
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PixelBlueGreenRedReserved8BitPerColor,
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PixelBitMask,
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PixelBltOnly,
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PixelFormatMax
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} EFI_GRAPHICS_PIXEL_FORMAT;
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typedef struct {
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UINT32 Version;
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UINT32 HorizontalResolution;
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UINT32 VerticalResolution;
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EFI_GRAPHICS_PIXEL_FORMAT PixelFormat;
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EFI_PIXEL_BITMASK PixelInformation;
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UINT32 PixelsPerScanLine;
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} EFI_GRAPHICS_OUTPUT_MODE_INFORMATION;
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/**
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Return the current video mode information.
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@param This Protocol instance pointer.
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@param ModeNumber The mode number to return information on.
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@param SizeOfInfo A pointer to the size, in bytes, of the Info buffer.
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@param Info A pointer to callee allocated buffer that returns information about ModeNumber.
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@retval EFI_SUCCESS Mode information returned.
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@retval EFI_BUFFER_TOO_SMALL The Info buffer was too small.
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@retval EFI_DEVICE_ERROR A hardware error occurred trying to retrieve the video mode.
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@retval EFI_NOT_STARTED Video display is not initialized. Call SetMode ()
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@retval EFI_INVALID_PARAMETER One of the input args was NULL.
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**/
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typedef
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EFI_STATUS
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(EFIAPI *EFI_GRAPHICS_OUTPUT_PROTOCOL_QUERY_MODE)(
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IN EFI_GRAPHICS_OUTPUT_PROTOCOL *This,
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IN UINT32 ModeNumber,
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OUT UINTN *SizeOfInfo,
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OUT EFI_GRAPHICS_OUTPUT_MODE_INFORMATION **Info
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)
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;
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/**
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Return the current video mode information.
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@param This Protocol instance pointer.
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@param ModeNumber The mode number to be set.
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@retval EFI_SUCCESS Graphics mode was changed.
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@retval EFI_DEVICE_ERROR The device had an error and could not complete the request.
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@retval EFI_UNSUPPORTED ModeNumber is not supported by this device.
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**/
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typedef
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EFI_STATUS
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(EFIAPI *EFI_GRAPHICS_OUTPUT_PROTOCOL_SET_MODE)(
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IN EFI_GRAPHICS_OUTPUT_PROTOCOL *This,
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IN UINT32 ModeNumber
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)
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;
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typedef struct {
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UINT8 Blue;
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UINT8 Green;
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UINT8 Red;
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UINT8 Reserved;
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} EFI_GRAPHICS_OUTPUT_BLT_PIXEL;
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typedef union {
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EFI_GRAPHICS_OUTPUT_BLT_PIXEL Pixel;
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UINT32 Raw;
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} EFI_GRAPHICS_OUTPUT_BLT_PIXEL_UNION;
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typedef enum {
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EfiBltVideoFill,
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EfiBltVideoToBltBuffer,
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EfiBltBufferToVideo,
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EfiBltVideoToVideo,
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EfiGraphicsOutputBltOperationMax
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} EFI_GRAPHICS_OUTPUT_BLT_OPERATION;
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/**
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The following table defines actions for BltOperations:
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<B>EfiBltVideoFill</B> - Write data from the BltBuffer pixel (SourceX, SourceY)
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directly to every pixel of the video display rectangle
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(DestinationX, DestinationY) (DestinationX + Width, DestinationY + Height).
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Only one pixel will be used from the BltBuffer. Delta is NOT used.
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<B>EfiBltVideoToBltBuffer</B> - Read data from the video display rectangle
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(SourceX, SourceY) (SourceX + Width, SourceY + Height) and place it in
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the BltBuffer rectangle (DestinationX, DestinationY )
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(DestinationX + Width, DestinationY + Height). If DestinationX or
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DestinationY is not zero then Delta must be set to the length in bytes
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of a row in the BltBuffer.
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<B>EfiBltBufferToVideo</B> - Write data from the BltBuffer rectangle
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(SourceX, SourceY) (SourceX + Width, SourceY + Height) directly to the
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video display rectangle (DestinationX, DestinationY)
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(DestinationX + Width, DestinationY + Height). If SourceX or SourceY is
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not zero then Delta must be set to the length in bytes of a row in the
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BltBuffer.
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<B>EfiBltVideoToVideo</B> - Copy from the video display rectangle (SourceX, SourceY)
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(SourceX + Width, SourceY + Height) .to the video display rectangle
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(DestinationX, DestinationY) (DestinationX + Width, DestinationY + Height).
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The BltBuffer and Delta are not used in this mode.
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@param This Protocol instance pointer.
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@param BltBuffer Buffer containing data to blit into video buffer. This
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buffer has a size of Width*Height*sizeof(EFI_GRAPHICS_OUTPUT_BLT_PIXEL)
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@param BltOperation Operation to perform on BlitBuffer and video memory
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@param SourceX X coordinate of source for the BltBuffer.
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@param SourceY Y coordinate of source for the BltBuffer.
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@param DestinationX X coordinate of destination for the BltBuffer.
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@param DestinationY Y coordinate of destination for the BltBuffer.
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@param Width Width of rectangle in BltBuffer in pixels.
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@param Height Hight of rectangle in BltBuffer in pixels.
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@param Delta OPTIONAL
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@retval EFI_SUCCESS The Blt operation completed.
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@retval EFI_INVALID_PARAMETER BltOperation is not valid.
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@retval EFI_DEVICE_ERROR A hardware error occured writting to the video buffer.
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**/
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typedef
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EFI_STATUS
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(EFIAPI *EFI_GRAPHICS_OUTPUT_PROTOCOL_BLT)(
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IN EFI_GRAPHICS_OUTPUT_PROTOCOL *This,
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IN EFI_GRAPHICS_OUTPUT_BLT_PIXEL *BltBuffer, OPTIONAL
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IN EFI_GRAPHICS_OUTPUT_BLT_OPERATION BltOperation,
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IN UINTN SourceX,
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IN UINTN SourceY,
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IN UINTN DestinationX,
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IN UINTN DestinationY,
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IN UINTN Width,
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IN UINTN Height,
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IN UINTN Delta OPTIONAL
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);
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typedef struct {
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UINT32 MaxMode;
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UINT32 Mode;
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EFI_GRAPHICS_OUTPUT_MODE_INFORMATION *Info;
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UINTN SizeOfInfo;
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EFI_PHYSICAL_ADDRESS FrameBufferBase;
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UINTN FrameBufferSize;
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} EFI_GRAPHICS_OUTPUT_PROTOCOL_MODE;
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struct _EFI_GRAPHICS_OUTPUT_PROTOCOL {
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EFI_GRAPHICS_OUTPUT_PROTOCOL_QUERY_MODE QueryMode;
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EFI_GRAPHICS_OUTPUT_PROTOCOL_SET_MODE SetMode;
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EFI_GRAPHICS_OUTPUT_PROTOCOL_BLT Blt;
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EFI_GRAPHICS_OUTPUT_PROTOCOL_MODE *Mode;
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};
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extern EFI_GUID gEfiGraphicsOutputProtocolGuid;
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#endif
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