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274 lines
7.5 KiB
C
274 lines
7.5 KiB
C
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/** @file
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Defines BufferImage - the view of the file that is visible at any point,
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as well as the event handlers for editing the file
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Copyright (c) 2005 - 2011, Intel Corporation. All rights reserved. <BR>
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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 _LIB_BUFFER_IMAGE_H_
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#define _LIB_BUFFER_IMAGE_H_
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#include "HexEditor.h"
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/**
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Initialization function for HBufferImage
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@retval EFI_SUCCESS The operation was successful.
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@retval EFI_LOAD_ERROR A load error occured.
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**/
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EFI_STATUS
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HBufferImageInit (
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VOID
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);
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/**
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Cleanup function for HBufferImage
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@retval EFI_SUCCESS The operation was successful.
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**/
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EFI_STATUS
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HBufferImageCleanup (
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VOID
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);
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/**
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Refresh function for HBufferImage.
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@retval EFI_SUCCESS The operation was successful.
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@retval EFI_LOAD_ERROR A Load error occured.
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**/
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EFI_STATUS
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HBufferImageRefresh (
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VOID
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);
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/**
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Dispatch input to different handler
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@param[in] Key The input key:
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the keys can be:
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ASCII KEY
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Backspace/Delete
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Direction key: up/down/left/right/pgup/pgdn
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Home/End
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INS
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@retval EFI_SUCCESS The operation was successful.
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@retval EFI_LOAD_ERROR A load error occured.
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@retval EFI_OUT_OF_RESOURCES A Memory allocation failed.
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**/
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EFI_STATUS
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HBufferImageHandleInput (
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IN EFI_INPUT_KEY *Key
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);
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/**
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Backup function for HBufferImage. Only a few fields need to be backup.
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This is for making the file buffer refresh as few as possible.
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@retval EFI_SUCCESS The operation was successful.
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**/
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EFI_STATUS
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HBufferImageBackup (
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VOID
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);
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/**
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Read an image into a buffer friom a source.
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@param[in] FileName Pointer to the file name. OPTIONAL and ignored if not FileTypeFileBuffer.
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@param[in] DiskName Pointer to the disk name. OPTIONAL and ignored if not FileTypeDiskBuffer.
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@param[in] DiskOffset Offset into the disk. OPTIONAL and ignored if not FileTypeDiskBuffer.
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@param[in] DiskSize Size of the disk buffer. OPTIONAL and ignored if not FileTypeDiskBuffer.
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@param[in] MemOffset Offset into the Memory. OPTIONAL and ignored if not FileTypeMemBuffer.
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@param[in] MemSize Size of the Memory buffer. OPTIONAL and ignored if not FileTypeMemBuffer.
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@param[in] BufferType The type of buffer to save. IGNORED.
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@param[in] Recover TRUE for recovermode, FALSE otherwise.
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@return EFI_SUCCESS The operation was successful.
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**/
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EFI_STATUS
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HBufferImageRead (
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IN CONST CHAR16 *FileName,
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IN CONST CHAR16 *DiskName,
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IN UINTN DiskOffset,
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IN UINTN DiskSize,
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IN UINTN MemOffset,
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IN UINTN MemSize,
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IN EDIT_FILE_TYPE BufferType,
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IN BOOLEAN Recover
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);
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/**
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Save the current image.
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@param[in] FileName Pointer to the file name. OPTIONAL and ignored if not FileTypeFileBuffer.
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@param[in] DiskName Pointer to the disk name. OPTIONAL and ignored if not FileTypeDiskBuffer.
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@param[in] DiskOffset Offset into the disk. OPTIONAL and ignored if not FileTypeDiskBuffer.
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@param[in] DiskSize Size of the disk buffer. OPTIONAL and ignored if not FileTypeDiskBuffer.
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@param[in] MemOffset Offset into the Memory. OPTIONAL and ignored if not FileTypeMemBuffer.
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@param[in] MemSize Size of the Memory buffer. OPTIONAL and ignored if not FileTypeMemBuffer.
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@param[in] BufferType The type of buffer to save. IGNORED.
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@return EFI_SUCCESS The operation was successful.
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**/
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EFI_STATUS
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HBufferImageSave (
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IN CHAR16 *FileName,
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IN CHAR16 *DiskName,
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IN UINTN DiskOffset,
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IN UINTN DiskSize,
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IN UINTN MemOffset,
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IN UINTN MemSize,
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IN EDIT_FILE_TYPE BufferType
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);
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/**
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According to cursor's file position, adjust screen display.
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@param[in] NewFilePosRow Row of file position ( start from 1 ).
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@param[in] NewFilePosCol Column of file position ( start from 1 ).
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@param[in] HighBits Cursor will on high4 bits or low4 bits.
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**/
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VOID
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HBufferImageMovePosition (
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IN UINTN NewFilePosRow,
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IN UINTN NewFilePosCol,
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IN BOOLEAN HighBits
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);
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/**
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Create a new line and append it to the line list.
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Fields affected:
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NumLines
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Lines
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@retval NULL create line failed.
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@return the line created.
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**/
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HEFI_EDITOR_LINE *
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HBufferImageCreateLine (
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VOID
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);
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/**
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Free the current image.
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@retval EFI_SUCCESS The operation was successful.
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**/
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EFI_STATUS
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HBufferImageFree (
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VOID
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);
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/**
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Delete character from buffer.
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@param[in] Pos Position, Pos starting from 0.
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@param[in] Count The Count of characters to delete.
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@param[out] DeleteBuffer The DeleteBuffer.
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@retval EFI_SUCCESS Success
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**/
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EFI_STATUS
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HBufferImageDeleteCharacterFromBuffer (
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IN UINTN Pos,
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IN UINTN Count,
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OUT UINT8 *DeleteBuffer
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);
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/**
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Add character to buffer, add before pos.
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@param[in] Pos Position, Pos starting from 0.
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@param[in] Count Count of characters to add.
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@param[in] AddBuffer Add buffer.
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@retval EFI_SUCCESS Success.
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**/
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EFI_STATUS
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HBufferImageAddCharacterToBuffer (
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IN UINTN Pos,
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IN UINTN Count,
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IN UINT8 *AddBuffer
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);
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/**
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Change the raw buffer to a list of lines for the UI.
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@param[in] Buffer The pointer to the buffer to fill.
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@param[in] Bytes The size of the buffer in bytes.
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@retval EFI_SUCCESS The operation was successful.
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@retval EFI_OUT_OF_RESOURCES A memory allocation failed.
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**/
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EFI_STATUS
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HBufferImageBufferToList (
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IN VOID *Buffer,
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IN UINTN Bytes
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);
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/**
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Change the list of lines from the UI to a raw buffer.
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@param[in] Buffer The pointer to the buffer to fill.
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@param[in] Bytes The size of the buffer in bytes.
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@retval EFI_SUCCESS The operation was successful.
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**/
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EFI_STATUS
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HBufferImageListToBuffer (
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IN VOID *Buffer,
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IN UINTN Bytes
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);
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/**
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Move the mouse in the image buffer.
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@param[in] TextX The x-coordinate.
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@param[in] TextY The y-coordinate.
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**/
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VOID
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HBufferImageAdjustMousePosition (
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IN INT32 TextX,
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IN INT32 TextY
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);
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/**
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Function to decide if a column number is stored in the high bits.
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@param[in] Column The column to examine.
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@param[out] FCol The actual column number.
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@retval TRUE The actual column was in high bits and is now in FCol.
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@retval FALSE There was not a column number in the high bits.
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**/
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BOOLEAN
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HBufferImageIsAtHighBits (
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IN UINTN Column,
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OUT UINTN *FCol
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);
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/**
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Get the size of the open buffer.
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@retval The size in bytes.
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**/
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UINTN
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HBufferImageGetTotalSize (
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VOID
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);
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#endif
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