Print.c revision 4fd606d1f5abe38e1f42c38de1d2e895166bd0f4
/** @file
Basic Ascii AvSPrintf() function named VSPrint(). VSPrint() enables very
simple implemenation of SPrint() and Print() to support debug.
You can not Print more than EFI_DRIVER_LIB_MAX_PRINT_BUFFER characters at a
time. This makes the implementation very simple.
VSPrint, Print, SPrint format specification has the follwoing form
%type
type:
'S','s' - argument is an Unicode string
'c' - argument is an ascii character
'%' - Print a %
Copyright (c) 2004 - 2012, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
**/
#include "Setup.h"
/**
The internal function prints to the EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL
protocol instance.
@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.
**/
)
{
//
// For now, allocate an arbitrarily long buffer
//
}
Index = 0;
PreviousIndex = 0;
Count = 0;
do {
for (; (Buffer[Index] != NARROW_CHAR) && (Buffer[Index] != WIDE_CHAR) && (Buffer[Index] != 0); Index++) {
}
break;
}
//
// Null-terminate the temporary string
//
BackupBuffer[Index] = 0;
//
// Print this out, we are about to switch widths
//
//
// Preserve the current index + 1, since this is where we will start printing from next
//
//
// We are at a narrow or wide character directive. Set attributes and strip it and print it
//
//
// Preserve bits 0 - 6 and zero out the rest
//
} else {
//
// Must be wide, set bit 7 ON
//
}
Index++;
//
// We hit the end of the string - print it
//
return Count;
}
/**
Prints a formatted unicode string to the default console.
@param Fmt Format string
@param ... Variable argument list for format string.
@return Length of string printed to the console.
**/
...
)
{
return LengthOfPrinted;
}
/**
Prints a unicode string to the default console,
using L"%s" format.
@param String String pointer.
@return Length of string printed to the console
**/
)
{
}
/**
Prints a chracter to the default console,
using L"%c" format.
@param Character Character to print.
@return Length of string printed to the console.
**/
)
{
}
/**
Prints a formatted unicode string to the default console, at
the supplied cursor position.
@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
**/
PrintAt (
...
)
{
return LengthOfPrinted;
}
/**
Prints a unicode string to the default console, at
the supplied cursor position, using L"%s" format.
@param Column The cursor position to print the string at.
@param Row The cursor position to print the string at
@param String String pointer.
@return Length of string printed to the console
**/
)
{
}
/**
Prints a chracter to the default console, at
the supplied cursor position, using L"%c" format.
@param Column The cursor position to print the string at.
@param Row The cursor position to print the string at.
@param Character Character to print.
@return Length of string printed to the console.
**/
)
{
}