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audk/MdeModulePkg/Library/CustomizedDisplayLib/CustomizedDisplayLibInternal.c

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/** @file
This library class defines a set of interfaces to customize Display module
Copyright (c) 2013-2018, Intel Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#include "CustomizedDisplayLibInternal.h"
EFI_SCREEN_DESCRIPTOR gScreenDimensions;
CHAR16 *mLibUnknownString;
extern EFI_HII_HANDLE mCDLStringPackHandle;
CHAR16 *mSpaceBuffer;
#define SPACE_BUFFER_SIZE 1000
//
// Browser Global Strings
//
CHAR16 *gEnterString;
CHAR16 *gEnterCommitString;
CHAR16 *gEnterEscapeString;
CHAR16 *gEscapeString;
CHAR16 *gMoveHighlight;
CHAR16 *gDecNumericInput;
CHAR16 *gHexNumericInput;
CHAR16 *gToggleCheckBox;
CHAR16 *gLibEmptyString;
CHAR16 *gAreYouSure;
CHAR16 *gYesResponse;
CHAR16 *gNoResponse;
CHAR16 *gPlusString;
CHAR16 *gMinusString;
CHAR16 *gAdjustNumber;
CHAR16 *gSaveChanges;
CHAR16 *gNvUpdateMessage;
CHAR16 *gInputErrorMessage;
/**
Print banner info for front page.
@param[in] FormData Form Data to be shown in Page
**/
VOID
PrintBannerInfo (
IN FORM_DISPLAY_ENGINE_FORM *FormData
)
{
UINT8 Line;
UINT8 Alignment;
CHAR16 *StrFrontPageBanner;
UINT8 RowIdx;
UINT8 ColumnIdx;
//
// ClearLines(0, LocalScreen.RightColumn, 0, BANNER_HEIGHT-1, BANNER_TEXT | BANNER_BACKGROUND);
//
ClearLines (
gScreenDimensions.LeftColumn,
gScreenDimensions.RightColumn,
gScreenDimensions.TopRow,
FRONT_PAGE_HEADER_HEIGHT - 1 + gScreenDimensions.TopRow,
BANNER_TEXT | BANNER_BACKGROUND
);
//
// for (Line = 0; Line < BANNER_HEIGHT; Line++) {
//
for (Line = (UINT8)gScreenDimensions.TopRow; Line < BANNER_HEIGHT + (UINT8)gScreenDimensions.TopRow; Line++) {
//
// for (Alignment = 0; Alignment < BANNER_COLUMNS; Alignment++) {
//
for (Alignment = (UINT8)gScreenDimensions.LeftColumn;
Alignment < BANNER_COLUMNS + (UINT8)gScreenDimensions.LeftColumn;
Alignment++
)
{
RowIdx = (UINT8)(Line - (UINT8)gScreenDimensions.TopRow);
ColumnIdx = (UINT8)(Alignment - (UINT8)gScreenDimensions.LeftColumn);
ASSERT (RowIdx < BANNER_HEIGHT && ColumnIdx < BANNER_COLUMNS);
if ((gBannerData != NULL) && (gBannerData->Banner[RowIdx][ColumnIdx] != 0x0000)) {
StrFrontPageBanner = LibGetToken (gBannerData->Banner[RowIdx][ColumnIdx], FormData->HiiHandle);
} else {
continue;
}
switch (Alignment - gScreenDimensions.LeftColumn) {
case 0:
//
// Handle left column
//
PrintStringAt (gScreenDimensions.LeftColumn + BANNER_LEFT_COLUMN_INDENT, Line, StrFrontPageBanner);
break;
case 1:
//
// Handle center column
//
PrintStringAt (
gScreenDimensions.LeftColumn + (gScreenDimensions.RightColumn - gScreenDimensions.LeftColumn) / 3,
Line,
StrFrontPageBanner
);
break;
case 2:
//
// Handle right column
//
PrintStringAt (
gScreenDimensions.LeftColumn + (gScreenDimensions.RightColumn - gScreenDimensions.LeftColumn) * 2 / 3,
Line,
StrFrontPageBanner
);
break;
}
FreePool (StrFrontPageBanner);
}
}
}
/**
Print framework and form title for a page.
@param[in] FormData Form Data to be shown in Page
**/
VOID
PrintFramework (
IN FORM_DISPLAY_ENGINE_FORM *FormData
)
{
UINTN Index;
CHAR16 Character;
CHAR16 *Buffer;
UINTN Row;
CHAR16 *TitleStr;
UINTN TitleColumn;
if (gClassOfVfr != FORMSET_CLASS_PLATFORM_SETUP) {
//
// Only Setup page needs Framework
//
ClearLines (
gScreenDimensions.LeftColumn,
gScreenDimensions.RightColumn,
gScreenDimensions.BottomRow - STATUS_BAR_HEIGHT - gFooterHeight,
gScreenDimensions.BottomRow - STATUS_BAR_HEIGHT - 1,
KEYHELP_TEXT | KEYHELP_BACKGROUND
);
return;
}
Buffer = AllocateZeroPool (0x10000);
ASSERT (Buffer != NULL);
Character = BOXDRAW_HORIZONTAL;
for (Index = 0; Index + 2 < (gScreenDimensions.RightColumn - gScreenDimensions.LeftColumn); Index++) {
Buffer[Index] = Character;
}
//
// Print Top border line
// +------------------------------------------------------------------------------+
// ? ?
// +------------------------------------------------------------------------------+
//
gST->ConOut->SetAttribute (gST->ConOut, TITLE_TEXT | TITLE_BACKGROUND);
Character = BOXDRAW_DOWN_RIGHT;
PrintCharAt (gScreenDimensions.LeftColumn, gScreenDimensions.TopRow, Character);
PrintStringAt ((UINTN)-1, (UINTN)-1, Buffer);
Character = BOXDRAW_DOWN_LEFT;
PrintCharAt ((UINTN)-1, (UINTN)-1, Character);
Character = BOXDRAW_VERTICAL;
for (Row = gScreenDimensions.TopRow + 1; Row <= gScreenDimensions.TopRow + NONE_FRONT_PAGE_HEADER_HEIGHT - 2; Row++) {
PrintCharAt (gScreenDimensions.LeftColumn, Row, Character);
PrintCharAt (gScreenDimensions.RightColumn - 1, Row, Character);
}
//
// Print Form Title
//
TitleStr = LibGetToken (FormData->FormTitle, FormData->HiiHandle);
ASSERT (TitleStr != NULL);
TitleColumn = (gScreenDimensions.RightColumn + gScreenDimensions.LeftColumn - LibGetStringWidth (TitleStr) / 2) / 2;
PrintStringAtWithWidth (gScreenDimensions.LeftColumn + 1, gScreenDimensions.TopRow + 1, gLibEmptyString, TitleColumn - gScreenDimensions.LeftColumn - 1);
PrintStringAtWithWidth (
TitleColumn,
gScreenDimensions.TopRow + 1,
TitleStr,
gScreenDimensions.RightColumn - 1 - TitleColumn
);
FreePool (TitleStr);
Character = BOXDRAW_UP_RIGHT;
PrintCharAt (gScreenDimensions.LeftColumn, gScreenDimensions.TopRow + NONE_FRONT_PAGE_HEADER_HEIGHT - 1, Character);
PrintStringAt ((UINTN)-1, (UINTN)-1, Buffer);
Character = BOXDRAW_UP_LEFT;
PrintCharAt ((UINTN)-1, (UINTN)-1, Character);
//
// Print Bottom border line
// +------------------------------------------------------------------------------+
// ? ?
// +------------------------------------------------------------------------------+
//
Character = BOXDRAW_DOWN_RIGHT;
PrintCharAt (gScreenDimensions.LeftColumn, gScreenDimensions.BottomRow - STATUS_BAR_HEIGHT - gFooterHeight, Character);
PrintStringAt ((UINTN)-1, (UINTN)-1, Buffer);
Character = BOXDRAW_DOWN_LEFT;
PrintCharAt ((UINTN)-1, (UINTN)-1, Character);
Character = BOXDRAW_VERTICAL;
for (Row = gScreenDimensions.BottomRow - STATUS_BAR_HEIGHT - gFooterHeight + 1;
Row <= gScreenDimensions.BottomRow - STATUS_BAR_HEIGHT - 2;
Row++
)
{
PrintCharAt (gScreenDimensions.LeftColumn, Row, Character);
PrintCharAt (gScreenDimensions.RightColumn - 1, Row, Character);
}
Character = BOXDRAW_UP_RIGHT;
PrintCharAt (gScreenDimensions.LeftColumn, gScreenDimensions.BottomRow - STATUS_BAR_HEIGHT - 1, Character);
PrintStringAt ((UINTN)-1, (UINTN)-1, Buffer);
Character = BOXDRAW_UP_LEFT;
PrintCharAt ((UINTN)-1, (UINTN)-1, Character);
FreePool (Buffer);
}
/**
Process some op code which is not recognized by browser core.
@param OpCodeData The pointer to the op code buffer.
@return EFI_SUCCESS Pass the statement success.
**/
VOID
ProcessUserOpcode (
IN EFI_IFR_OP_HEADER *OpCodeData
)
{
EFI_GUID *ClassGuid;
UINT8 ClassGuidNum;
ClassGuid = NULL;
ClassGuidNum = 0;
switch (OpCodeData->OpCode) {
case EFI_IFR_FORM_SET_OP:
//
// process the statement outside of form,if it is formset op, get its formsetguid or classguid and compared with gFrontPageFormSetGuid
//
if (CompareMem (PcdGetPtr (PcdFrontPageFormSetGuid), &((EFI_IFR_FORM_SET *)OpCodeData)->Guid, sizeof (EFI_GUID)) == 0) {
gClassOfVfr = FORMSET_CLASS_FRONT_PAGE;
} else {
ClassGuidNum = (UINT8)(((EFI_IFR_FORM_SET *)OpCodeData)->Flags & 0x3);
ClassGuid = (EFI_GUID *)(VOID *)((UINT8 *)OpCodeData + sizeof (EFI_IFR_FORM_SET));
while (ClassGuidNum-- > 0) {
if (CompareGuid ((EFI_GUID *)PcdGetPtr (PcdFrontPageFormSetGuid), ClassGuid)) {
gClassOfVfr = FORMSET_CLASS_FRONT_PAGE;
break;
}
ClassGuid++;
}
}
break;
case EFI_IFR_GUID_OP:
if (CompareGuid (&gEfiIfrTianoGuid, (EFI_GUID *)((CHAR8 *)OpCodeData + sizeof (EFI_IFR_OP_HEADER)))) {
//
// Tiano specific GUIDed opcodes
//
switch (((EFI_IFR_GUID_LABEL *)OpCodeData)->ExtendOpCode) {
case EFI_IFR_EXTEND_OP_LABEL:
//
// just ignore label
//
break;
case EFI_IFR_EXTEND_OP_BANNER:
//
// Only in front page form set, we care about the banner data.
//
if (gClassOfVfr == FORMSET_CLASS_FRONT_PAGE) {
//
// Initialize Driver private data
//
if (gBannerData == NULL) {
gBannerData = AllocateZeroPool (sizeof (BANNER_DATA));
ASSERT (gBannerData != NULL);
}
CopyMem (
&gBannerData->Banner[((EFI_IFR_GUID_BANNER *)OpCodeData)->LineNumber][
((EFI_IFR_GUID_BANNER *)OpCodeData)->Alignment],
&((EFI_IFR_GUID_BANNER *)OpCodeData)->Title,
sizeof (EFI_STRING_ID)
);
}
break;
case EFI_IFR_EXTEND_OP_SUBCLASS:
if (((EFI_IFR_GUID_SUBCLASS *)OpCodeData)->SubClass == EFI_FRONT_PAGE_SUBCLASS) {
gClassOfVfr = FORMSET_CLASS_FRONT_PAGE;
}
break;
default:
break;
}
}
break;
default:
break;
}
}
/**
Process some op codes which is out side of current form.
@param FormData Pointer to the form data.
@return EFI_SUCCESS Pass the statement success.
**/
VOID
ProcessExternedOpcode (
IN FORM_DISPLAY_ENGINE_FORM *FormData
)
{
LIST_ENTRY *Link;
LIST_ENTRY *NestLink;
FORM_DISPLAY_ENGINE_STATEMENT *Statement;
FORM_DISPLAY_ENGINE_STATEMENT *NestStatement;
Link = GetFirstNode (&FormData->StatementListOSF);
while (!IsNull (&FormData->StatementListOSF, Link)) {
Statement = FORM_DISPLAY_ENGINE_STATEMENT_FROM_LINK (Link);
Link = GetNextNode (&FormData->StatementListOSF, Link);
ProcessUserOpcode (Statement->OpCode);
}
Link = GetFirstNode (&FormData->StatementListHead);
while (!IsNull (&FormData->StatementListHead, Link)) {
Statement = FORM_DISPLAY_ENGINE_STATEMENT_FROM_LINK (Link);
Link = GetNextNode (&FormData->StatementListHead, Link);
ProcessUserOpcode (Statement->OpCode);
NestLink = GetFirstNode (&Statement->NestStatementList);
while (!IsNull (&Statement->NestStatementList, NestLink)) {
NestStatement = FORM_DISPLAY_ENGINE_STATEMENT_FROM_LINK (NestLink);
NestLink = GetNextNode (&Statement->NestStatementList, NestLink);
ProcessUserOpcode (NestStatement->OpCode);
}
}
}
/**
Validate the input screen diemenstion info.
@param FormData The input form data info.
@return EFI_SUCCESS The input screen info is acceptable.
@return EFI_INVALID_PARAMETER The input screen info is not acceptable.
**/
EFI_STATUS
ScreenDiemensionInfoValidate (
IN FORM_DISPLAY_ENGINE_FORM *FormData
)
{
LIST_ENTRY *Link;
UINTN Index;
//
// Calculate total number of Register HotKeys.
//
Index = 0;
if (!IsListEmpty (&FormData->HotKeyListHead)) {
Link = GetFirstNode (&FormData->HotKeyListHead);
while (!IsNull (&FormData->HotKeyListHead, Link)) {
Link = GetNextNode (&FormData->HotKeyListHead, Link);
Index++;
}
}
//
// Show three HotKeys help information on one row.
//
gFooterHeight = FOOTER_HEIGHT + (Index / 3);
ZeroMem (&gScreenDimensions, sizeof (EFI_SCREEN_DESCRIPTOR));
gST->ConOut->QueryMode (
gST->ConOut,
gST->ConOut->Mode->Mode,
&gScreenDimensions.RightColumn,
&gScreenDimensions.BottomRow
);
//
// Check local dimension vs. global dimension.
//
if (FormData->ScreenDimensions != NULL) {
if ((gScreenDimensions.RightColumn < FormData->ScreenDimensions->RightColumn) ||
(gScreenDimensions.BottomRow < FormData->ScreenDimensions->BottomRow)
)
{
return EFI_INVALID_PARAMETER;
} else {
//
// Local dimension validation.
//
if ((FormData->ScreenDimensions->RightColumn > FormData->ScreenDimensions->LeftColumn) &&
(FormData->ScreenDimensions->BottomRow > FormData->ScreenDimensions->TopRow) &&
((FormData->ScreenDimensions->RightColumn - FormData->ScreenDimensions->LeftColumn) > 2) &&
((FormData->ScreenDimensions->BottomRow - FormData->ScreenDimensions->TopRow) > STATUS_BAR_HEIGHT +
FRONT_PAGE_HEADER_HEIGHT + gFooterHeight + 3))
{
CopyMem (&gScreenDimensions, (VOID *)FormData->ScreenDimensions, sizeof (EFI_SCREEN_DESCRIPTOR));
} else {
return EFI_INVALID_PARAMETER;
}
}
}
return EFI_SUCCESS;
}
/**
Get the string based on the StringId and HII Package List Handle.
@param Token The String's ID.
@param HiiHandle The package list in the HII database to search for
the specified string.
@return The output string.
**/
CHAR16 *
LibGetToken (
IN EFI_STRING_ID Token,
IN EFI_HII_HANDLE HiiHandle
)
{
EFI_STRING String;
String = HiiGetString (HiiHandle, Token, NULL);
if (String == NULL) {
String = AllocateCopyPool (StrSize (mLibUnknownString), mLibUnknownString);
ASSERT (String != NULL);
}
return (CHAR16 *)String;
}
/**
Count the storage space of a Unicode string.
This function handles the Unicode string with NARROW_CHAR
and WIDE_CHAR control characters. NARROW_HCAR and WIDE_CHAR
does not count in the resultant output. If a WIDE_CHAR is
hit, then 2 Unicode character will consume an output storage
space with size of CHAR16 till a NARROW_CHAR is hit.
If String is NULL, then ASSERT ().
@param String The input string to be counted.
@return Storage space for the input string.
**/
UINTN
LibGetStringWidth (
IN CHAR16 *String
)
{
UINTN Index;
UINTN Count;
UINTN IncrementValue;
ASSERT (String != NULL);
if (String == NULL) {
return 0;
}
Index = 0;
Count = 0;
IncrementValue = 1;
do {
//
// Advance to the null-terminator or to the first width directive
//
for ( ;
(String[Index] != NARROW_CHAR) && (String[Index] != WIDE_CHAR) && (String[Index] != 0);
Index++, Count = Count + IncrementValue
)
{
}
//
// We hit the null-terminator, we now have a count
//
if (String[Index] == 0) {
break;
}
//
// We encountered a narrow directive - strip it from the size calculation since it doesn't get printed
// and also set the flag that determines what we increment by.(if narrow, increment by 1, if wide increment by 2)
//
if (String[Index] == NARROW_CHAR) {
//
// Skip to the next character
//
Index++;
IncrementValue = 1;
} else {
//
// Skip to the next character
//
Index++;
IncrementValue = 2;
}
} while (String[Index] != 0);
//
// Increment by one to include the null-terminator in the size
//
Count++;
return Count * sizeof (CHAR16);
}
/**
Show all registered HotKey help strings on bottom Rows.
@param FormData The curent input form data info.
@param SetState Set HotKey or Clear HotKey
**/
VOID
PrintHotKeyHelpString (
IN FORM_DISPLAY_ENGINE_FORM *FormData,
IN BOOLEAN SetState
)
{
UINTN CurrentCol;
UINTN CurrentRow;
UINTN BottomRowOfHotKeyHelp;
UINTN ColumnIndexWidth;
UINTN ColumnWidth;
UINTN ColumnIndex;
UINTN Index;
EFI_SCREEN_DESCRIPTOR LocalScreen;
LIST_ENTRY *Link;
BROWSER_HOT_KEY *HotKey;
CHAR16 BakChar;
CHAR16 *ColumnStr;
CopyMem (&LocalScreen, &gScreenDimensions, sizeof (EFI_SCREEN_DESCRIPTOR));
ColumnWidth = (LocalScreen.RightColumn - LocalScreen.LeftColumn) / 3;
BottomRowOfHotKeyHelp = LocalScreen.BottomRow - STATUS_BAR_HEIGHT - 3;
ColumnStr = gLibEmptyString;
//
// Calculate total number of Register HotKeys.
//
Index = 0;
Link = GetFirstNode (&FormData->HotKeyListHead);
while (!IsNull (&FormData->HotKeyListHead, Link)) {
HotKey = BROWSER_HOT_KEY_FROM_LINK (Link);
//
// Calculate help information Column and Row.
//
ColumnIndex = Index % 3;
if (ColumnIndex == 0) {
CurrentCol = LocalScreen.LeftColumn + 2 * ColumnWidth;
ColumnIndexWidth = ColumnWidth - 1;
} else if (ColumnIndex == 1) {
CurrentCol = LocalScreen.LeftColumn + ColumnWidth;
ColumnIndexWidth = ColumnWidth;
} else {
CurrentCol = LocalScreen.LeftColumn + 2;
ColumnIndexWidth = ColumnWidth - 2;
}
CurrentRow = BottomRowOfHotKeyHelp - Index / 3;
//
// Help string can't exceed ColumnWidth. One Row will show three Help information.
//
BakChar = L'\0';
if (StrLen (HotKey->HelpString) > ColumnIndexWidth) {
BakChar = HotKey->HelpString[ColumnIndexWidth];
HotKey->HelpString[ColumnIndexWidth] = L'\0';
}
//
// Print HotKey help string on bottom Row.
//
if (SetState) {
ColumnStr = HotKey->HelpString;
}
PrintStringAtWithWidth (CurrentCol, CurrentRow, ColumnStr, ColumnIndexWidth);
if (BakChar != L'\0') {
HotKey->HelpString[ColumnIndexWidth] = BakChar;
}
//
// Get Next Hot Key.
//
Link = GetNextNode (&FormData->HotKeyListHead, Link);
Index++;
}
if (SetState) {
//
// Clear KeyHelp
//
CurrentRow = BottomRowOfHotKeyHelp - Index / 3;
ColumnIndex = Index % 3;
if (ColumnIndex == 0) {
CurrentCol = LocalScreen.LeftColumn + 2 * ColumnWidth;
ColumnIndexWidth = ColumnWidth - 1;
ColumnIndex++;
PrintStringAtWithWidth (CurrentCol, CurrentRow, gLibEmptyString, ColumnIndexWidth);
}
if (ColumnIndex == 1) {
CurrentCol = LocalScreen.LeftColumn + ColumnWidth;
ColumnIndexWidth = ColumnWidth;
PrintStringAtWithWidth (CurrentCol, CurrentRow, gLibEmptyString, ColumnIndexWidth);
}
}
return;
}
/**
Get step info from numeric opcode.
@param[in] OpCode The input numeric op code.
@return step info for this opcode.
**/
UINT64
LibGetFieldFromNum (
IN EFI_IFR_OP_HEADER *OpCode
)
{
EFI_IFR_NUMERIC *NumericOp;
UINT64 Step;
NumericOp = (EFI_IFR_NUMERIC *)OpCode;
switch (NumericOp->Flags & EFI_IFR_NUMERIC_SIZE) {
case EFI_IFR_NUMERIC_SIZE_1:
Step = NumericOp->data.u8.Step;
break;
case EFI_IFR_NUMERIC_SIZE_2:
Step = NumericOp->data.u16.Step;
break;
case EFI_IFR_NUMERIC_SIZE_4:
Step = NumericOp->data.u32.Step;
break;
case EFI_IFR_NUMERIC_SIZE_8:
Step = NumericOp->data.u64.Step;
break;
default:
Step = 0;
break;
}
return Step;
}
/**
Initialize the HII String Token to the correct values.
**/
VOID
InitializeLibStrings (
VOID
)
{
mLibUnknownString = L"!";
gEnterString = LibGetToken (STRING_TOKEN (ENTER_STRING), mCDLStringPackHandle);
gEnterCommitString = LibGetToken (STRING_TOKEN (ENTER_COMMIT_STRING), mCDLStringPackHandle);
gEnterEscapeString = LibGetToken (STRING_TOKEN (ENTER_ESCAPE_STRING), mCDLStringPackHandle);
gEscapeString = LibGetToken (STRING_TOKEN (ESCAPE_STRING), mCDLStringPackHandle);
gMoveHighlight = LibGetToken (STRING_TOKEN (MOVE_HIGHLIGHT), mCDLStringPackHandle);
gDecNumericInput = LibGetToken (STRING_TOKEN (DEC_NUMERIC_INPUT), mCDLStringPackHandle);
gHexNumericInput = LibGetToken (STRING_TOKEN (HEX_NUMERIC_INPUT), mCDLStringPackHandle);
gToggleCheckBox = LibGetToken (STRING_TOKEN (TOGGLE_CHECK_BOX), mCDLStringPackHandle);
gAreYouSure = LibGetToken (STRING_TOKEN (ARE_YOU_SURE), mCDLStringPackHandle);
gYesResponse = LibGetToken (STRING_TOKEN (ARE_YOU_SURE_YES), mCDLStringPackHandle);
gNoResponse = LibGetToken (STRING_TOKEN (ARE_YOU_SURE_NO), mCDLStringPackHandle);
gPlusString = LibGetToken (STRING_TOKEN (PLUS_STRING), mCDLStringPackHandle);
gMinusString = LibGetToken (STRING_TOKEN (MINUS_STRING), mCDLStringPackHandle);
gAdjustNumber = LibGetToken (STRING_TOKEN (ADJUST_NUMBER), mCDLStringPackHandle);
gSaveChanges = LibGetToken (STRING_TOKEN (SAVE_CHANGES), mCDLStringPackHandle);
gLibEmptyString = LibGetToken (STRING_TOKEN (EMPTY_STRING), mCDLStringPackHandle);
gNvUpdateMessage = LibGetToken (STRING_TOKEN (NV_UPDATE_MESSAGE), mCDLStringPackHandle);
gInputErrorMessage = LibGetToken (STRING_TOKEN (INPUT_ERROR_MESSAGE), mCDLStringPackHandle);
//
// SpaceBuffer;
//
mSpaceBuffer = AllocatePool ((SPACE_BUFFER_SIZE + 1) * sizeof (CHAR16));
ASSERT (mSpaceBuffer != NULL);
LibSetUnicodeMem (mSpaceBuffer, SPACE_BUFFER_SIZE, L' ');
mSpaceBuffer[SPACE_BUFFER_SIZE] = L'\0';
}
/**
Free the HII String.
**/
VOID
FreeLibStrings (
VOID
)
{
FreePool (gEnterString);
FreePool (gEnterCommitString);
FreePool (gEnterEscapeString);
FreePool (gEscapeString);
FreePool (gMoveHighlight);
FreePool (gDecNumericInput);
FreePool (gHexNumericInput);
FreePool (gToggleCheckBox);
FreePool (gAreYouSure);
FreePool (gYesResponse);
FreePool (gNoResponse);
FreePool (gPlusString);
FreePool (gMinusString);
FreePool (gAdjustNumber);
FreePool (gSaveChanges);
FreePool (gLibEmptyString);
FreePool (gNvUpdateMessage);
FreePool (gInputErrorMessage);
FreePool (mSpaceBuffer);
}
/**
Wait for a key to be pressed by user.
@param Key The key which is pressed by user.
@retval EFI_SUCCESS The function always completed successfully.
**/
EFI_STATUS
WaitForKeyStroke (
OUT EFI_INPUT_KEY *Key
)
{
EFI_STATUS Status;
UINTN Index;
while (TRUE) {
Status = gST->ConIn->ReadKeyStroke (gST->ConIn, Key);
if (!EFI_ERROR (Status)) {
break;
}
if (Status != EFI_NOT_READY) {
continue;
}
gBS->WaitForEvent (1, &gST->ConIn->WaitForKey, &Index);
}
return Status;
}
/**
Set Buffer to Value for Size bytes.
@param Buffer Memory to set.
@param Size Number of bytes to set
@param Value Value of the set operation.
**/
VOID
LibSetUnicodeMem (
IN VOID *Buffer,
IN UINTN Size,
IN CHAR16 Value
)
{
CHAR16 *Ptr;
Ptr = Buffer;
while ((Size--) != 0) {
*(Ptr++) = Value;
}
}
/**
The internal function prints to the EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL
protocol instance.
@param Width Width of string to be print.
@param Column The position of the output string.
@param Row The position of the output string.
@param Out The EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL instance.
@param Fmt The format string.
@param Args The additional argument for the variables in the format string.
@return Number of Unicode character printed.
**/
UINTN
PrintInternal (
IN UINTN Width,
IN UINTN Column,
IN UINTN Row,
IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *Out,
IN CHAR16 *Fmt,
IN VA_LIST Args
)
{
CHAR16 *Buffer;
CHAR16 *BackupBuffer;
UINTN Index;
UINTN PreviousIndex;
UINTN Count;
UINTN TotalCount;
UINTN PrintWidth;
UINTN CharWidth;
//
// For now, allocate an arbitrarily long buffer
//
Buffer = AllocateZeroPool (0x10000);
BackupBuffer = AllocateZeroPool (0x10000);
ASSERT (Buffer);
ASSERT (BackupBuffer);
if (Column != (UINTN)-1) {
Out->SetCursorPosition (Out, Column, Row);
}
UnicodeVSPrint (Buffer, 0x10000, Fmt, Args);
Out->Mode->Attribute = Out->Mode->Attribute & 0x7f;
Out->SetAttribute (Out, Out->Mode->Attribute);
Index = 0;
PreviousIndex = 0;
Count = 0;
TotalCount = 0;
PrintWidth = 0;
CharWidth = 1;
do {
for ( ; (Buffer[Index] != NARROW_CHAR) && (Buffer[Index] != WIDE_CHAR) && (Buffer[Index] != 0); Index++) {
BackupBuffer[Index] = Buffer[Index];
}
if (Buffer[Index] == 0) {
break;
}
//
// Print this out, we are about to switch widths
//
Out->OutputString (Out, &BackupBuffer[PreviousIndex]);
Count = StrLen (&BackupBuffer[PreviousIndex]);
PrintWidth += Count * CharWidth;
TotalCount += Count;
//
// Preserve the current index + 1, since this is where we will start printing from next
//
PreviousIndex = Index + 1;
//
// We are at a narrow or wide character directive. Set attributes and strip it and print it
//
if (Buffer[Index] == NARROW_CHAR) {
//
// Preserve bits 0 - 6 and zero out the rest
//
Out->Mode->Attribute = Out->Mode->Attribute & 0x7f;
Out->SetAttribute (Out, Out->Mode->Attribute);
CharWidth = 1;
} else {
//
// Must be wide, set bit 7 ON
//
Out->Mode->Attribute = Out->Mode->Attribute | EFI_WIDE_ATTRIBUTE;
Out->SetAttribute (Out, Out->Mode->Attribute);
CharWidth = 2;
}
Index++;
} while (Buffer[Index] != 0);
//
// We hit the end of the string - print it
//
Out->OutputString (Out, &BackupBuffer[PreviousIndex]);
Count = StrLen (&BackupBuffer[PreviousIndex]);
PrintWidth += Count * CharWidth;
TotalCount += Count;
if (PrintWidth < Width) {
Out->Mode->Attribute = Out->Mode->Attribute & 0x7f;
Out->SetAttribute (Out, Out->Mode->Attribute);
Out->OutputString (Out, &mSpaceBuffer[SPACE_BUFFER_SIZE - Width + PrintWidth]);
}
FreePool (Buffer);
FreePool (BackupBuffer);
return TotalCount;
}
/**
Prints a formatted unicode string to the default console, at
the supplied cursor position.
@param Width Width of String to be printed.
@param Column The cursor position to print the string at.
@param Row The cursor position to print the string at.
@param Fmt Format string.
@param ... Variable argument list for format string.
@return Length of string printed to the console
**/
UINTN
EFIAPI
PrintAt (
IN UINTN Width,
IN UINTN Column,
IN UINTN Row,
IN CHAR16 *Fmt,
...
)
{
VA_LIST Args;
UINTN LengthOfPrinted;
VA_START (Args, Fmt);
LengthOfPrinted = PrintInternal (Width, Column, Row, gST->ConOut, Fmt, Args);
VA_END (Args);
return LengthOfPrinted;
}
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