/** @file
Mde UEFI library API implementation.
Print to StdErr or ConOut defined in EFI_SYSTEM_TABLE
Copyright (c) 2007 - 2015, 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
http://opensource.org/licenses/bsd-license.php.
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 "UefiLibInternal.h"
GLOBAL_REMOVE_IF_UNREFERENCED EFI_GRAPHICS_OUTPUT_BLT_PIXEL mEfiColors[16] = {
{ 0x00, 0x00, 0x00, 0x00 },
{ 0x98, 0x00, 0x00, 0x00 },
{ 0x00, 0x98, 0x00, 0x00 },
{ 0x98, 0x98, 0x00, 0x00 },
{ 0x00, 0x00, 0x98, 0x00 },
{ 0x98, 0x00, 0x98, 0x00 },
{ 0x00, 0x98, 0x98, 0x00 },
{ 0x98, 0x98, 0x98, 0x00 },
{ 0x10, 0x10, 0x10, 0x00 },
{ 0xff, 0x10, 0x10, 0x00 },
{ 0x10, 0xff, 0x10, 0x00 },
{ 0xff, 0xff, 0x10, 0x00 },
{ 0x10, 0x10, 0xff, 0x00 },
{ 0xf0, 0x10, 0xff, 0x00 },
{ 0x10, 0xff, 0xff, 0x00 },
{ 0xff, 0xff, 0xff, 0x00 }
};
/**
Internal function which prints a formatted Unicode string to the console output device
specified by Console
This function prints a formatted Unicode string to the console output device
specified by Console and returns the number of Unicode characters that printed
to it. If the length of the formatted Unicode string is greater than PcdUefiLibMaxPrintBufferSize,
then only the first PcdUefiLibMaxPrintBufferSize characters are sent to Console.
If Format is NULL, then ASSERT().
If Format is not aligned on a 16-bit boundary, then ASSERT().
@param Format A Null-terminated Unicode format string.
@param Console The output console.
@param Marker A VA_LIST marker for the variable argument list.
@return The number of Unicode characters in the produced
output buffer, not including the Null-terminator.
**/
UINTN
InternalPrint (
IN CONST CHAR16 *Format,
IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *Console,
IN VA_LIST Marker
)
{
EFI_STATUS Status;
UINTN Return;
CHAR16 *Buffer;
UINTN BufferSize;
ASSERT (Format != NULL);
ASSERT (((UINTN) Format & BIT0) == 0);
ASSERT (Console != NULL);
BufferSize = (PcdGet32 (PcdUefiLibMaxPrintBufferSize) + 1) * sizeof (CHAR16);
Buffer = (CHAR16 *) AllocatePool(BufferSize);
ASSERT (Buffer != NULL);
Return = UnicodeVSPrint (Buffer, BufferSize, Format, Marker);
if (Console != NULL && Return > 0) {
//
// To be extra safe make sure Console has been initialized
//
Status = Console->OutputString (Console, Buffer);
if (EFI_ERROR (Status)) {
Return = 0;
}
}
FreePool (Buffer);
return Return;
}
/**
Prints a formatted Unicode string to the console output device specified by
ConOut defined in the EFI_SYSTEM_TABLE.
This function prints a formatted Unicode string to the console output device
specified by ConOut in EFI_SYSTEM_TABLE and returns the number of Unicode
characters that printed to ConOut. If the length of the formatted Unicode
string is greater than PcdUefiLibMaxPrintBufferSize, then only the first
PcdUefiLibMaxPrintBufferSize characters are sent to ConOut.
If Format is NULL, then ASSERT().
If Format is not aligned on a 16-bit boundary, then ASSERT().
If gST->ConOut is NULL, then ASSERT().
@param Format A Null-terminated Unicode format string.
@param ... A Variable argument list whose contents are accessed based
on the format string specified by Format.
@return The number of Unicode characters printed to ConOut.
**/
UINTN
EFIAPI
Print (
IN CONST CHAR16 *Format,
...
)
{
VA_LIST Marker;
UINTN Return;
VA_START (Marker, Format);
Return = InternalPrint (Format, gST->ConOut, Marker);
VA_END (Marker);
return Return;
}
/**
Prints a formatted Unicode string to the console output device specified by
StdErr defined in the EFI_SYSTEM_TABLE.
This function prints a formatted Unicode string to the console output device
specified by StdErr in EFI_SYSTEM_TABLE and returns the number of Unicode
characters that printed to StdErr. If the length of the formatted Unicode
string is greater than PcdUefiLibMaxPrintBufferSize, then only the first
PcdUefiLibMaxPrintBufferSize characters are sent to StdErr.
If Format is NULL, then ASSERT().
If Format is not aligned on a 16-bit boundary, then ASSERT().
If gST->StdErr is NULL, then ASSERT().
@param Format A Null-terminated Unicode format string.
@param ... Variable argument list whose contents are accessed based
on the format string specified by Format.
@return The number of Unicode characters printed to StdErr.
**/
UINTN
EFIAPI
ErrorPrint (
IN CONST CHAR16 *Format,
...
)
{
VA_LIST Marker;
UINTN Return;
VA_START (Marker, Format);
Return = InternalPrint( Format, gST->StdErr, Marker);
VA_END (Marker);
return Return;
}
/**
Internal function which prints a formatted ASCII string to the console output device
specified by Console
This function prints a formatted ASCII string to the console output device
specified by Console and returns the number of ASCII characters that printed
to it. If the length of the formatted ASCII string is greater than PcdUefiLibMaxPrintBufferSize,
then only the first PcdUefiLibMaxPrintBufferSize characters are sent to Console.
If Format is NULL, then ASSERT().
@param Format A Null-terminated ASCII format string.
@param Console The output console.
@param Marker VA_LIST marker for the variable argument list.
@return The number of Unicode characters in the produced
output buffer not including the Null-terminator.
**/
UINTN
AsciiInternalPrint (
IN CONST CHAR8 *Format,
IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *Console,
IN VA_LIST Marker
)
{
EFI_STATUS Status;
UINTN Return;
CHAR16 *Buffer;
UINTN BufferSize;
ASSERT (Format != NULL);
ASSERT (Console != NULL);
BufferSize = (PcdGet32 (PcdUefiLibMaxPrintBufferSize) + 1) * sizeof (CHAR16);
Buffer = (CHAR16 *) AllocatePool(BufferSize);
ASSERT (Buffer != NULL);
Return = UnicodeVSPrintAsciiFormat (Buffer, BufferSize, Format, Marker);
if (Console != NULL) {
//
// To be extra safe make sure Console has been initialized
//
Status = Console->OutputString (Console, Buffer);
if (EFI_ERROR (Status)) {
Return = 0;
}
}
FreePool (Buffer);
return Return;
}
/**
Prints a formatted ASCII string to the console output device specified by
ConOut defined in the EFI_SYSTEM_TABLE.
This function prints a formatted ASCII string to the console output device
specified by ConOut in EFI_SYSTEM_TABLE and returns the number of ASCII
characters that printed to ConOut. If the length of the formatted ASCII
string is greater than PcdUefiLibMaxPrintBufferSize, then only the first
PcdUefiLibMaxPrintBufferSize characters are sent to ConOut.
If Format is NULL, then ASSERT().
If gST->ConOut is NULL, then ASSERT().
@param Format A Null-terminated ASCII format string.
@param ... Variable argument list whose contents are accessed based
on the format string specified by Format.
@return The number of ASCII characters printed to ConOut.
**/
UINTN
EFIAPI
AsciiPrint (
IN CONST CHAR8 *Format,
...
)
{
VA_LIST Marker;
UINTN Return;
ASSERT (Format != NULL);
VA_START (Marker, Format);
Return = AsciiInternalPrint( Format, gST->ConOut, Marker);
VA_END (Marker);
return Return;
}
/**
Prints a formatted ASCII string to the console output device specified by
StdErr defined in the EFI_SYSTEM_TABLE.
This function prints a formatted ASCII string to the console output device
specified by StdErr in EFI_SYSTEM_TABLE and returns the number of ASCII
characters that printed to StdErr. If the length of the formatted ASCII
string is greater than PcdUefiLibMaxPrintBufferSize, then only the first
PcdUefiLibMaxPrintBufferSize characters are sent to StdErr.
If Format is NULL, then ASSERT().
If gST->StdErr is NULL, then ASSERT().
@param Format A Null-terminated ASCII format string.
@param ... Variable argument list whose contents are accessed based
on the format string specified by Format.
@return The number of ASCII characters printed to ConErr.
**/
UINTN
EFIAPI
AsciiErrorPrint (
IN CONST CHAR8 *Format,
...
)
{
VA_LIST Marker;
UINTN Return;
ASSERT (Format != NULL);
VA_START (Marker, Format);
Return = AsciiInternalPrint( Format, gST->StdErr, Marker);
VA_END (Marker);
return Return;
}
/**
Internal function to print a formatted Unicode string to a graphics console device specified by
ConsoleOutputHandle defined in the EFI_SYSTEM_TABLE at the given (X,Y) coordinates.
This function prints a formatted Unicode string to the graphics console device
specified by ConsoleOutputHandle in EFI_SYSTEM_TABLE and returns the number of
Unicode characters printed. The EFI_HII_FONT_PROTOCOL is used to convert the
string to a bitmap using the glyphs registered with the
HII database. No wrapping is performed, so any portions of the string the fall
outside the active display region will not be displayed.
If a graphics console device is not associated with the ConsoleOutputHandle
defined in the EFI_SYSTEM_TABLE then no string is printed, and 0 is returned.
If the EFI_HII_FONT_PROTOCOL is not present in the handle database, then no
string is printed, and 0 is returned.
@param PointX An X coordinate to print the string.
@param PointY A Y coordinate to print the string.
@param Foreground The foreground color of the string being printed. This is
an optional parameter that may be NULL. If it is NULL,
then the foreground color of the current ConOut device
in the EFI_SYSTEM_TABLE is used.
@param Background The background color of the string being printed. This is
an optional parameter that may be NULL. If it is NULL,
then the background color of the current ConOut device
in the EFI_SYSTEM_TABLE is used.
@param Buffer A Null-terminated Unicode formatted string.
@param PrintNum The number of Unicode formatted string to be printed.
@return The number of Unicode Characters printed. Zero means no any character
displayed successfully.
**/
UINTN
InternalPrintGraphic (
IN UINTN PointX,
IN UINTN PointY,
IN EFI_GRAPHICS_OUTPUT_BLT_PIXEL *Foreground,
IN EFI_GRAPHICS_OUTPUT_BLT_PIXEL *Background,
IN CHAR16 *Buffer,
IN UINTN PrintNum
)
{
EFI_STATUS Status;
UINT32 HorizontalResolution;
UINT32 VerticalResolution;
UINT32 ColorDepth;
UINT32 RefreshRate;
EFI_HII_FONT_PROTOCOL *HiiFont;
EFI_IMAGE_OUTPUT *Blt;
EFI_FONT_DISPLAY_INFO FontInfo;
EFI_HII_ROW_INFO *RowInfoArray;
UINTN RowInfoArraySize;
EFI_GRAPHICS_OUTPUT_PROTOCOL *GraphicsOutput;
EFI_UGA_DRAW_PROTOCOL *UgaDraw;
EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *Sto;
EFI_HANDLE ConsoleHandle;
UINTN Width;
UINTN Height;
UINTN Delta;
HorizontalResolution = 0;
VerticalResolution = 0;
Blt = NULL;
RowInfoArray = NULL;
ConsoleHandle = gST->ConsoleOutHandle;
ASSERT( ConsoleHandle != NULL);
Status = gBS->HandleProtocol (
ConsoleHandle,
&gEfiGraphicsOutputProtocolGuid,
(VOID **) &GraphicsOutput
);
UgaDraw = NULL;
if (EFI_ERROR (Status) && FeaturePcdGet (PcdUgaConsumeSupport)) {
//
// If no GOP available, try to open UGA Draw protocol if supported.
//
GraphicsOutput = NULL;
Status = gBS->HandleProtocol (
ConsoleHandle,
&gEfiUgaDrawProtocolGuid,
(VOID **) &UgaDraw
);
}
if (EFI_ERROR (Status)) {
goto Error;
}
Status = gBS->HandleProtocol (
ConsoleHandle,
&gEfiSimpleTextOutProtocolGuid,
(VOID **) &Sto
);
if (EFI_ERROR (Status)) {
goto Error;
}
if (GraphicsOutput != NULL) {
HorizontalResolution = GraphicsOutput->Mode->Info->HorizontalResolution;
VerticalResolution = GraphicsOutput->Mode->Info->VerticalResolution;
} else if (UgaDraw != NULL && FeaturePcdGet (PcdUgaConsumeSupport)) {
UgaDraw->GetMode (UgaDraw, &HorizontalResolution, &VerticalResolution, &ColorDepth, &RefreshRate);
} else {
goto Error;
}
ASSERT ((HorizontalResolution != 0) && (VerticalResolution !=0));
Status = gBS->LocateProtocol (&gEfiHiiFontProtocolGuid, NULL, (VOID **) &HiiFont);
if (EFI_ERROR (Status)) {
goto Error;
}
Blt = (EFI_IMAGE_OUTPUT *) AllocateZeroPool (sizeof (EFI_IMAGE_OUTPUT));
ASSERT (Blt != NULL);
Blt->Width = (UINT16) (HorizontalResolution);
Blt->Height = (UINT16) (VerticalResolution);
ZeroMem (&FontInfo, sizeof (EFI_FONT_DISPLAY_INFO));
if (Foreground != NULL) {
CopyMem (&FontInfo.ForegroundColor, Foreground, sizeof (EFI_GRAPHICS_OUTPUT_BLT_PIXEL));
} else {
CopyMem (
&FontInfo.ForegroundColor,
&mEfiColors[Sto->Mode->Attribute & 0x0f],
sizeof (EFI_GRAPHICS_OUTPUT_BLT_PIXEL)
);
}
if (Background != NULL) {
CopyMem (&FontInfo.BackgroundColor, Background, sizeof (EFI_GRAPHICS_OUTPUT_BLT_PIXEL));
} else {
CopyMem (
&FontInfo.BackgroundColor,
&mEfiColors[Sto->Mode->Attribute >> 4],
sizeof (EFI_GRAPHICS_OUTPUT_BLT_PIXEL)
);
}
if (GraphicsOutput != NULL) {
Blt->Image.Screen = GraphicsOutput;
Status = HiiFont->StringToImage (
HiiFont,
EFI_HII_IGNORE_IF_NO_GLYPH | EFI_HII_OUT_FLAG_CLIP |
EFI_HII_OUT_FLAG_CLIP_CLEAN_X | EFI_HII_OUT_FLAG_CLIP_CLEAN_Y |
EFI_HII_IGNORE_LINE_BREAK | EFI_HII_DIRECT_TO_SCREEN,
Buffer,
&FontInfo,
&Blt,
PointX,
PointY,
&RowInfoArray,
&RowInfoArraySize,
NULL
);
if (EFI_ERROR (Status)) {
goto Error;
}
} else if (FeaturePcdGet (PcdUgaConsumeSupport)) {
ASSERT (UgaDraw!= NULL);
Blt->Image.Bitmap = AllocateZeroPool (Blt->Width * Blt->Height * sizeof (EFI_GRAPHICS_OUTPUT_BLT_PIXEL));
ASSERT (Blt->Image.Bitmap != NULL);
//
// StringToImage only support blt'ing image to device using GOP protocol. If GOP is not supported in this platform,
// we ask StringToImage to print the string to blt buffer, then blt to device using UgaDraw.
//
Status = HiiFont->StringToImage (
HiiFont,
EFI_HII_IGNORE_IF_NO_GLYPH | EFI_HII_OUT_FLAG_CLIP |
EFI_HII_OUT_FLAG_CLIP_CLEAN_X | EFI_HII_OUT_FLAG_CLIP_CLEAN_Y |
EFI_HII_IGNORE_LINE_BREAK,
Buffer,
&FontInfo,
&Blt,
PointX,
PointY,
&RowInfoArray,
&RowInfoArraySize,
NULL
);
if (!EFI_ERROR (Status)) {
ASSERT (RowInfoArray != NULL);
//
// Explicit Line break characters are ignored, so the updated parameter RowInfoArraySize by StringToImage will
// always be 1 or 0 (if there is no valid Unicode Char can be printed). ASSERT here to make sure.
//
ASSERT (RowInfoArraySize <= 1);
if (RowInfoArraySize != 0) {
Width = RowInfoArray[0].LineWidth;
Height = RowInfoArray[0].LineHeight;
Delta = Blt->Width * sizeof (EFI_GRAPHICS_OUTPUT_BLT_PIXEL);
} else {
Width = 0;
Height = 0;
Delta = 0;
}
Status = UgaDraw->Blt (
UgaDraw,
(EFI_UGA_PIXEL *) Blt->Image.Bitmap,
EfiUgaBltBufferToVideo,
PointX,
PointY,
PointX,
PointY,
Width,
Height,
Delta
);
} else {
goto Error;
}
FreePool (Blt->Image.Bitmap);
} else {
goto Error;
}
//
// Calculate the number of actual printed characters
//
if (RowInfoArraySize != 0) {
PrintNum = RowInfoArray[0].EndIndex - RowInfoArray[0].StartIndex + 1;
} else {
PrintNum = 0;
}
FreePool (RowInfoArray);
FreePool (Blt);
return PrintNum;
Error:
if (Blt != NULL) {
FreePool (Blt);
}
return 0;
}
/**
Prints a formatted Unicode string to a graphics console device specified by
ConsoleOutputHandle defined in the EFI_SYSTEM_TABLE at the given (X,Y) coordinates.
This function prints a formatted Unicode string to the graphics console device
specified by ConsoleOutputHandle in EFI_SYSTEM_TABLE and returns the number of
Unicode characters displayed, not including partial characters that may be clipped
by the right edge of the display. If the length of the formatted Unicode string is
greater than PcdUefiLibMaxPrintBufferSize, then at most the first
PcdUefiLibMaxPrintBufferSize characters are printed.The EFI_HII_FONT_PROTOCOL
StringToImage() service is used to convert the string to a bitmap using the glyphs
registered with the HII database. No wrapping is performed, so any portions of the
string the fall outside the active display region will not be displayed. Please see
Section 27.2.6 of the UEFI Specification for a description of the supported string
format including the set of control codes supported by the StringToImage() service.
If a graphics console device is not associated with the ConsoleOutputHandle
defined in the EFI_SYSTEM_TABLE then no string is printed, and 0 is returned.
If the EFI_HII_FONT_PROTOCOL is not present in the handle database, then no
string is printed, and 0 is returned.
If Format is NULL, then ASSERT().
If Format is not aligned on a 16-bit boundary, then ASSERT().
If gST->ConsoleOutputHandle is NULL, then ASSERT().
@param PointX An X coordinate to print the string.
@param PointY A Y coordinate to print the string.
@param ForeGround The foreground color of the string being printed. This is
an optional parameter that may be NULL. If it is NULL,
then the foreground color of the current ConOut device
in the EFI_SYSTEM_TABLE is used.
@param BackGround The background color of the string being printed. This is
an optional parameter that may be NULL. If it is NULL,
then the background color of the current ConOut device
in the EFI_SYSTEM_TABLE is used.
@param Format A Null-terminated Unicode format string. See Print Library
for the supported format string syntax.
@param ... A Variable argument list whose contents are accessed based on
the format string specified by Format.
@return The number of Unicode characters printed.
**/
UINTN
EFIAPI
PrintXY (
IN UINTN PointX,
IN UINTN PointY,
IN EFI_GRAPHICS_OUTPUT_BLT_PIXEL *ForeGround, OPTIONAL
IN EFI_GRAPHICS_OUTPUT_BLT_PIXEL *BackGround, OPTIONAL
IN CONST CHAR16 *Format,
...
)
{
VA_LIST Marker;
CHAR16 *Buffer;
UINTN BufferSize;
UINTN PrintNum;
UINTN ReturnNum;
ASSERT (Format != NULL);
ASSERT (((UINTN) Format & BIT0) == 0);
VA_START (Marker, Format);
BufferSize = (PcdGet32 (PcdUefiLibMaxPrintBufferSize) + 1) * sizeof (CHAR16);
Buffer = (CHAR16 *) AllocatePool (BufferSize);
ASSERT (Buffer != NULL);
PrintNum = UnicodeVSPrint (Buffer, BufferSize, Format, Marker);
VA_END (Marker);
ReturnNum = InternalPrintGraphic (PointX, PointY, ForeGround, BackGround, Buffer, PrintNum);
FreePool (Buffer);
return ReturnNum;
}
/**
Prints a formatted ASCII string to a graphics console device specified by
ConsoleOutputHandle defined in the EFI_SYSTEM_TABLE at the given (X,Y) coordinates.
This function prints a formatted ASCII string to the graphics console device
specified by ConsoleOutputHandle in EFI_SYSTEM_TABLE and returns the number of
ASCII characters displayed, not including partial characters that may be clipped
by the right edge of the display. If the length of the formatted ASCII string is
greater than PcdUefiLibMaxPrintBufferSize, then at most the first
PcdUefiLibMaxPrintBufferSize characters are printed.The EFI_HII_FONT_PROTOCOL
StringToImage() service is used to convert the string to a bitmap using the glyphs
registered with the HII database. No wrapping is performed, so any portions of the
string the fall outside the active display region will not be displayed. Please see
Section 27.2.6 of the UEFI Specification for a description of the supported string
format including the set of control codes supported by the StringToImage() service.
If a graphics console device is not associated with the ConsoleOutputHandle
defined in the EFI_SYSTEM_TABLE then no string is printed, and 0 is returned.
If the EFI_HII_FONT_PROTOCOL is not present in the handle database, then no
string is printed, and 0 is returned.
If Format is NULL, then ASSERT().
If gST->ConsoleOutputHandle is NULL, then ASSERT().
@param PointX An X coordinate to print the string.
@param PointY A Y coordinate to print the string.
@param ForeGround The foreground color of the string being printed. This is
an optional parameter that may be NULL. If it is NULL,
then the foreground color of the current ConOut device
in the EFI_SYSTEM_TABLE is used.
@param BackGround The background color of the string being printed. This is
an optional parameter that may be NULL. If it is NULL,
then the background color of the current ConOut device
in the EFI_SYSTEM_TABLE is used.
@param Format A Null-terminated ASCII format string. See Print Library
for the supported format string syntax.
@param ... Variable argument list whose contents are accessed based on
the format string specified by Format.
@return The number of ASCII characters printed.
**/
UINTN
EFIAPI
AsciiPrintXY (
IN UINTN PointX,
IN UINTN PointY,
IN EFI_GRAPHICS_OUTPUT_BLT_PIXEL *ForeGround, OPTIONAL
IN EFI_GRAPHICS_OUTPUT_BLT_PIXEL *BackGround, OPTIONAL
IN CONST CHAR8 *Format,
...
)
{
VA_LIST Marker;
CHAR16 *Buffer;
UINTN BufferSize;
UINTN PrintNum;
UINTN ReturnNum;
ASSERT (Format != NULL);
VA_START (Marker, Format);
BufferSize = (PcdGet32 (PcdUefiLibMaxPrintBufferSize) + 1) * sizeof (CHAR16);
Buffer = (CHAR16 *) AllocatePool (BufferSize);
ASSERT (Buffer != NULL);
PrintNum = UnicodeSPrintAsciiFormat (Buffer, BufferSize, Format, Marker);
VA_END (Marker);
ReturnNum = InternalPrintGraphic (PointX, PointY, ForeGround, BackGround, Buffer, PrintNum);
FreePool (Buffer);
return ReturnNum;
}
/**
Appends a formatted Unicode string to a Null-terminated Unicode string
This function appends a formatted Unicode string to the Null-terminated
Unicode string specified by String. String is optional and may be NULL.
Storage for the formatted Unicode string returned is allocated using
AllocatePool(). The pointer to the appended string is returned. The caller
is responsible for freeing the returned string.
If String is not NULL and not aligned on a 16-bit boundary, then ASSERT().
If FormatString is NULL, then ASSERT().
If FormatString is not aligned on a 16-bit boundary, then ASSERT().
@param[in] String A Null-terminated Unicode string.
@param[in] FormatString A Null-terminated Unicode format string.
@param[in] Marker VA_LIST marker for the variable argument list.
@retval NULL There was not enough available memory.
@return Null-terminated Unicode string is that is the formatted
string appended to String.
**/
CHAR16*
EFIAPI
CatVSPrint (
IN CHAR16 *String, OPTIONAL
IN CONST CHAR16 *FormatString,
IN VA_LIST Marker
)
{
UINTN CharactersRequired;
UINTN SizeRequired;
CHAR16 *BufferToReturn;
VA_LIST ExtraMarker;
VA_COPY (ExtraMarker, Marker);
CharactersRequired = SPrintLength(FormatString, ExtraMarker);
VA_END (ExtraMarker);
if (String != NULL) {
SizeRequired = StrSize(String) + (CharactersRequired * sizeof(CHAR16));
} else {
SizeRequired = sizeof(CHAR16) + (CharactersRequired * sizeof(CHAR16));
}
BufferToReturn = AllocatePool(SizeRequired);
if (BufferToReturn == NULL) {
return NULL;
} else {
BufferToReturn[0] = L'\0';
}
if (String != NULL) {
StrCpyS(BufferToReturn, SizeRequired / sizeof(CHAR16), String);
}
UnicodeVSPrint(BufferToReturn + StrLen(BufferToReturn), (CharactersRequired+1) * sizeof(CHAR16), FormatString, Marker);
ASSERT(StrSize(BufferToReturn)==SizeRequired);
return (BufferToReturn);
}
/**
Appends a formatted Unicode string to a Null-terminated Unicode string
This function appends a formatted Unicode string to the Null-terminated
Unicode string specified by String. String is optional and may be NULL.
Storage for the formatted Unicode string returned is allocated using
AllocatePool(). The pointer to the appended string is returned. The caller
is responsible for freeing the returned string.
If String is not NULL and not aligned on a 16-bit boundary, then ASSERT().
If FormatString is NULL, then ASSERT().
If FormatString is not aligned on a 16-bit boundary, then ASSERT().
@param[in] String A Null-terminated Unicode string.
@param[in] FormatString A Null-terminated Unicode format string.
@param[in] ... The variable argument list whose contents are
accessed based on the format string specified by
FormatString.
@retval NULL There was not enough available memory.
@return Null-terminated Unicode string is that is the formatted
string appended to String.
**/
CHAR16 *
EFIAPI
CatSPrint (
IN CHAR16 *String, OPTIONAL
IN CONST CHAR16 *FormatString,
...
)
{
VA_LIST Marker;
CHAR16 *NewString;
VA_START (Marker, FormatString);
NewString = CatVSPrint(String, FormatString, Marker);
VA_END (Marker);
return NewString;
}