diff options
Diffstat (limited to 'src/VBox/Devices/EFI/Firmware/ShellPkg/Library/UefiShellDebug1CommandsLib/HexEdit/Misc.c')
| -rw-r--r-- | src/VBox/Devices/EFI/Firmware/ShellPkg/Library/UefiShellDebug1CommandsLib/HexEdit/Misc.c | 256 |
1 files changed, 256 insertions, 0 deletions
diff --git a/src/VBox/Devices/EFI/Firmware/ShellPkg/Library/UefiShellDebug1CommandsLib/HexEdit/Misc.c b/src/VBox/Devices/EFI/Firmware/ShellPkg/Library/UefiShellDebug1CommandsLib/HexEdit/Misc.c new file mode 100644 index 00000000..31ce112a --- /dev/null +++ b/src/VBox/Devices/EFI/Firmware/ShellPkg/Library/UefiShellDebug1CommandsLib/HexEdit/Misc.c @@ -0,0 +1,256 @@ +/** @file + Implementation of various string and line routines + + Copyright (c) 2005 - 2018, Intel Corporation. All rights reserved. <BR> + SPDX-License-Identifier: BSD-2-Clause-Patent + +**/ + +#include "HexEditor.h" + +extern BOOLEAN HEditorMouseAction; + +/** + Free a line and it's internal buffer. + + @param[in] Src The line to be freed. +**/ +VOID +HLineFree ( + IN HEFI_EDITOR_LINE *Src + ) +{ + if (Src == NULL) { + return ; + } + + SHELL_FREE_NON_NULL (Src); + +} + +/** + Advance to the next Count lines. + + @param[in] Count The line number to advance. + + @retval NULL An error occurred. + @return A pointer to the line after advance. +**/ +HEFI_EDITOR_LINE * +HLineAdvance ( + IN UINTN Count + ) +{ + UINTN Index; + HEFI_EDITOR_LINE *Line; + + Line = HMainEditor.BufferImage->CurrentLine; + if (Line == NULL) { + return NULL; + } + + for (Index = 0; Index < Count; Index++) { + // + // if already last line + // + if (Line->Link.ForwardLink == HMainEditor.BufferImage->ListHead) { + return NULL; + } + + Line = CR (Line->Link.ForwardLink, HEFI_EDITOR_LINE, Link, EFI_EDITOR_LINE_LIST); + } + + return Line; +} + +/** + Retreat to the previous Count lines. + + @param[in] Count The line number to retreat. + + @retval NULL An error occurred. + @return A pointer to the line after retreat. +**/ +HEFI_EDITOR_LINE * +HLineRetreat ( + IN UINTN Count + ) +{ + UINTN Index; + HEFI_EDITOR_LINE *Line; + + Line = HMainEditor.BufferImage->CurrentLine; + if (Line == NULL) { + return NULL; + } + + for (Index = 0; Index < Count; Index++) { + // + // already the first line + // + if (Line->Link.BackLink == HMainEditor.BufferImage->ListHead) { + return NULL; + } + + Line = CR (Line->Link.BackLink, HEFI_EDITOR_LINE, Link, EFI_EDITOR_LINE_LIST); + } + + return Line; +} + +/** + Advance/Retreat lines. + + @param[in] Count The line number to advance/retreat. + >0 : advance + <0: retreat + + @retval NULL An error occurred. + @return A pointer to the line after move. +**/ +HEFI_EDITOR_LINE * +HMoveLine ( + IN INTN Count + ) +{ + HEFI_EDITOR_LINE *Line; + UINTN AbsCount; + + // + // difference with MoveCurrentLine + // just return Line + // do not set currentline to Line + // + if (Count <= 0) { + AbsCount = (UINTN)ABS(Count); + Line = HLineRetreat (AbsCount); + } else { + Line = HLineAdvance ((UINTN)Count); + } + + return Line; +} + +/** + Advance/Retreat lines and set CurrentLine in BufferImage to it. + + @param[in] Count The line number to advance/retreat. + >0 : advance + <0: retreat + + @retval NULL An error occurred. + @return A pointer to the line after move. +**/ +HEFI_EDITOR_LINE * +HMoveCurrentLine ( + IN INTN Count + ) +{ + HEFI_EDITOR_LINE *Line; + UINTN AbsCount; + + // + // <0: retreat + // >0: advance + // + if (Count <= 0) { + AbsCount = (UINTN)ABS(Count); + Line = HLineRetreat (AbsCount); + } else { + Line = HLineAdvance ((UINTN)Count); + } + + if (Line == NULL) { + return NULL; + } + + HMainEditor.BufferImage->CurrentLine = Line; + + return Line; +} + + +/** + Free all the lines in HBufferImage. + Fields affected: + Lines + CurrentLine + NumLines + ListHead + + @param[in] ListHead The list head. + @param[in] Lines The lines. + + @retval EFI_SUCCESS The operation was successful. +**/ +EFI_STATUS +HFreeLines ( + IN LIST_ENTRY *ListHead, + IN HEFI_EDITOR_LINE *Lines + ) +{ + LIST_ENTRY *Link; + HEFI_EDITOR_LINE *Line; + + // + // release all the lines + // + if (Lines != NULL) { + + Line = Lines; + Link = &(Line->Link); + do { + Line = CR (Link, HEFI_EDITOR_LINE, Link, EFI_EDITOR_LINE_LIST); + Link = Link->ForwardLink; + HLineFree (Line); + } while (Link != ListHead); + } + + ListHead->ForwardLink = ListHead; + ListHead->BackLink = ListHead; + + return EFI_SUCCESS; +} + +/** + Get the X information for the mouse. + + @param[in] GuidX The change. + + @return the new information. +**/ +INT32 +HGetTextX ( + IN INT32 GuidX + ) +{ + INT32 Gap; + + HMainEditor.MouseAccumulatorX += GuidX; + Gap = (HMainEditor.MouseAccumulatorX * (INT32) HMainEditor.ScreenSize.Column) / (INT32) (50 * (INT32) HMainEditor.MouseInterface->Mode->ResolutionX); + HMainEditor.MouseAccumulatorX = (HMainEditor.MouseAccumulatorX * (INT32) HMainEditor.ScreenSize.Column) % (INT32) (50 * (INT32) HMainEditor.MouseInterface->Mode->ResolutionX); + HMainEditor.MouseAccumulatorX = HMainEditor.MouseAccumulatorX / (INT32) HMainEditor.ScreenSize.Column; + return Gap; +} + +/** + Get the Y information for the mouse. + + @param[in] GuidY The change. + + @return the new information. +**/ +INT32 +HGetTextY ( + IN INT32 GuidY + ) +{ + INT32 Gap; + + HMainEditor.MouseAccumulatorY += GuidY; + Gap = (HMainEditor.MouseAccumulatorY * (INT32) HMainEditor.ScreenSize.Row) / (INT32) (50 * (INT32) HMainEditor.MouseInterface->Mode->ResolutionY); + HMainEditor.MouseAccumulatorY = (HMainEditor.MouseAccumulatorY * (INT32) HMainEditor.ScreenSize.Row) % (INT32) (50 * (INT32) HMainEditor.MouseInterface->Mode->ResolutionY); + HMainEditor.MouseAccumulatorY = HMainEditor.MouseAccumulatorY / (INT32) HMainEditor.ScreenSize.Row; + + return Gap; +} |