diff options
Diffstat (limited to 'Core/MdePkg/Library/UefiLib/UefiLibPrint.c')
| -rw-r--r-- | Core/MdePkg/Library/UefiLib/UefiLibPrint.c | 815 |
1 files changed, 815 insertions, 0 deletions
diff --git a/Core/MdePkg/Library/UefiLib/UefiLibPrint.c b/Core/MdePkg/Library/UefiLib/UefiLibPrint.c new file mode 100644 index 0000000000..9f52e7d0ce --- /dev/null +++ b/Core/MdePkg/Library/UefiLib/UefiLibPrint.c @@ -0,0 +1,815 @@ +/** @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;
+}
+
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