UEFI HII: Merge UEFI HII support changes from branch.
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@4599 6f19259b-4bc3-4df7-8a09-765794883524
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qwang12
331
MdeModulePkg/Universal/SetupBrowserDxe/Print.c
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331
MdeModulePkg/Universal/SetupBrowserDxe/Print.c
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/** @file
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Copyright (c) 2004 - 2007, 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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Module Name:
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Print.c
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Abstract:
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Basic Ascii AvSPrintf() function named VSPrint(). VSPrint() enables very
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simple implemenation of SPrint() and Print() to support debug.
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You can not Print more than EFI_DRIVER_LIB_MAX_PRINT_BUFFER characters at a
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time. This makes the implementation very simple.
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VSPrint, Print, SPrint format specification has the follwoing form
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%type
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type:
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'S','s' - argument is an Unicode string
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'c' - argument is an ascii character
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'%' - Print a %
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**/
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//@MT:#include "Tiano.h"
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//@MT:#include "EfiDriverLib.h"
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//@MT:#include "EfiPrintLib.h"
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//@MT:#include "EfiStdArg.h"
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//@MT:#include "TianoHii.h"
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#include "Setup.h"
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UINTN
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ValueToString (
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IN OUT CHAR16 *Buffer,
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IN BOOLEAN Flags,
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IN INT64 Value
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);
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UINTN
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PrintInternal (
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IN UINTN Column,
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IN UINTN Row,
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IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *Out,
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IN CHAR16 *fmt,
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IN VA_LIST args
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)
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//
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// Display string worker for: Print, PrintAt, IPrint, IPrintAt
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//
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{
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CHAR16 *Buffer;
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CHAR16 *BackupBuffer;
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UINTN Index;
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UINTN PreviousIndex;
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//
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// For now, allocate an arbitrarily long buffer
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//
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Buffer = AllocateZeroPool (0x10000);
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BackupBuffer = AllocateZeroPool (0x10000);
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ASSERT (Buffer);
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ASSERT (BackupBuffer);
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if (Column != (UINTN) -1) {
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Out->SetCursorPosition (Out, Column, Row);
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}
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UnicodeVSPrint (Buffer, 0x10000, fmt, args);
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Out->Mode->Attribute = Out->Mode->Attribute & 0x7f;
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Out->SetAttribute (Out, Out->Mode->Attribute);
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Index = 0;
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PreviousIndex = 0;
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do {
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for (; (Buffer[Index] != NARROW_CHAR) && (Buffer[Index] != WIDE_CHAR) && (Buffer[Index] != 0); Index++) {
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BackupBuffer[Index] = Buffer[Index];
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}
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if (Buffer[Index] == 0) {
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break;
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}
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//
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// Null-terminate the temporary string
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//
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BackupBuffer[Index] = 0;
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//
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// Print this out, we are about to switch widths
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//
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Out->OutputString (Out, &BackupBuffer[PreviousIndex]);
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//
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// Preserve the current index + 1, since this is where we will start printing from next
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//
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PreviousIndex = Index + 1;
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//
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// We are at a narrow or wide character directive. Set attributes and strip it and print it
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//
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if (Buffer[Index] == NARROW_CHAR) {
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//
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// Preserve bits 0 - 6 and zero out the rest
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//
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Out->Mode->Attribute = Out->Mode->Attribute & 0x7f;
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Out->SetAttribute (Out, Out->Mode->Attribute);
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} else {
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//
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// Must be wide, set bit 7 ON
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//
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Out->Mode->Attribute = Out->Mode->Attribute | EFI_WIDE_ATTRIBUTE;
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Out->SetAttribute (Out, Out->Mode->Attribute);
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}
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Index++;
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} while (Buffer[Index] != 0);
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//
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// We hit the end of the string - print it
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//
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Out->OutputString (Out, &BackupBuffer[PreviousIndex]);
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gBS->FreePool (Buffer);
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gBS->FreePool (BackupBuffer);
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return EFI_SUCCESS;
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}
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/**
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Prints a formatted unicode string to the default console
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@param fmt Format string
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@return Length of string printed to the console
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**/
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UINTN
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ConsolePrint (
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IN CHAR16 *fmt,
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...
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)
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{
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VA_LIST args;
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VA_START (args, fmt);
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return PrintInternal ((UINTN) -1, (UINTN) -1, gST->ConOut, fmt, args);
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}
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/**
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Prints a unicode string to the default console,
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using L"%s" format.
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@param String String pointer.
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@return Length of string printed to the console
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**/
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UINTN
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PrintString (
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CHAR16 *String
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)
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{
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return ConsolePrint (L"%s", String);
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}
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/**
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Prints a chracter to the default console,
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using L"%c" format.
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@param Character Character to print.
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@return Length of string printed to the console.
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**/
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UINTN
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PrintChar (
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CHAR16 Character
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)
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{
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return ConsolePrint (L"%c", Character);
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}
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/**
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Prints a formatted unicode string to the default console, at
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the supplied cursor position
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@param Row The cursor position to print the string at
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@param fmt Format string
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@return Length of string printed to the console
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**/
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UINTN
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PrintAt (
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IN UINTN Column,
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IN UINTN Row,
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IN CHAR16 *fmt,
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...
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)
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{
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VA_LIST args;
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VA_START (args, fmt);
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return PrintInternal (Column, Row, gST->ConOut, fmt, args);
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}
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/**
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Prints a unicode string to the default console, at
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the supplied cursor position, using L"%s" format.
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@param Row The cursor position to print the string at
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@param String String pointer.
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@return Length of string printed to the console
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**/
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UINTN
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PrintStringAt (
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IN UINTN Column,
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IN UINTN Row,
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CHAR16 *String
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)
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{
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return PrintAt (Column, Row, L"%s", String);
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}
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/**
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Prints a chracter to the default console, at
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the supplied cursor position, using L"%c" format.
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@param Row The cursor position to print the string at
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@param Character Character to print.
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@return Length of string printed to the console.
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**/
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UINTN
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PrintCharAt (
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IN UINTN Column,
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IN UINTN Row,
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CHAR16 Character
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)
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{
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return PrintAt (Column, Row, L"%c", Character);
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}
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/**
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VSPrint worker function that prints a Value as a decimal number in Buffer
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@param Buffer Location to place ascii decimal number string of Value.
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@param Value Decimal value to convert to a string in Buffer.
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@param Flags Flags to use in printing decimal string, see file header for
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details.
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@return Number of characters printed.
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**/
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UINTN
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ValueToString (
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IN OUT CHAR16 *Buffer,
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IN BOOLEAN Flags,
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IN INT64 Value
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)
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{
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CHAR16 TempBuffer[30];
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CHAR16 *TempStr;
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CHAR16 *BufferPtr;
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UINTN Count;
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UINTN NumberCount;
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UINT32 Remainder;
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BOOLEAN Negative;
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Negative = FALSE;
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TempStr = TempBuffer;
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BufferPtr = Buffer;
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Count = 0;
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NumberCount = 0;
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if (Value < 0) {
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Negative = TRUE;
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Value = -Value;
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}
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do {
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Value = (INT64) DivU64x32Remainder ((UINT64) Value, 10, &Remainder);
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*(TempStr++) = (CHAR16) (Remainder + '0');
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Count++;
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NumberCount++;
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if ((Flags & COMMA_TYPE) == COMMA_TYPE) {
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if (NumberCount % 3 == 0 && Value != 0) {
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*(TempStr++) = ',';
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Count++;
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}
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}
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} while (Value != 0);
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if (Negative) {
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*(BufferPtr++) = '-';
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Count++;
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}
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//
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// Reverse temp string into Buffer.
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//
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while (TempStr != TempBuffer) {
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*(BufferPtr++) = *(--TempStr);
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}
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*BufferPtr = 0;
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return Count;
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}
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