\r
**/\r
\r
-#include "FrameworkUefiLib.h"\r
+#include "UefiLibInternal.h"\r
+\r
+GLOBAL_REMOVE_IF_UNREFERENCED EFI_GRAPHICS_OUTPUT_BLT_PIXEL mEfiColors[16] = {\r
+ { 0x00, 0x00, 0x00, 0x00 },\r
+ { 0x98, 0x00, 0x00, 0x00 },\r
+ { 0x00, 0x98, 0x00, 0x00 },\r
+ { 0x98, 0x98, 0x00, 0x00 },\r
+ { 0x00, 0x00, 0x98, 0x00 },\r
+ { 0x98, 0x00, 0x98, 0x00 },\r
+ { 0x00, 0x98, 0x98, 0x00 },\r
+ { 0x98, 0x98, 0x98, 0x00 },\r
+ { 0x10, 0x10, 0x10, 0x00 },\r
+ { 0xff, 0x10, 0x10, 0x00 },\r
+ { 0x10, 0xff, 0x10, 0x00 },\r
+ { 0xff, 0xff, 0x10, 0x00 },\r
+ { 0x10, 0x10, 0xff, 0x00 },\r
+ { 0xf0, 0x10, 0xff, 0x00 },\r
+ { 0x10, 0xff, 0xff, 0x00 },\r
+ { 0xff, 0xff, 0xff, 0x00 }\r
+};\r
\r
/**\r
Internal function which prints a formatted Unicode string to the console output device\r
specified by Console and returns the number of Unicode characters that printed\r
to it. If the length of the formatted Unicode string is greater than PcdUefiLibMaxPrintBufferSize,\r
then only the first PcdUefiLibMaxPrintBufferSize characters are sent to Console.\r
+ If Format is NULL, then ASSERT().\r
+ If Format is not aligned on a 16-bit boundary, then ASSERT().\r
\r
@param Format Null-terminated Unicode format string.\r
@param Console The output console.\r
@param Marker VA_LIST marker for the variable argument list.\r
-\r
- If Format is NULL, then ASSERT().\r
- If Format is not aligned on a 16-bit boundary, then ASSERT().\r
-\r
+ \r
+ @return The number of Unicode characters in the produced\r
+ output buffer not including the Null-terminator.\r
**/\r
-\r
UINTN\r
InternalPrint (\r
IN CONST CHAR16 *Format,\r
UINTN BufferSize;\r
\r
ASSERT (Format != NULL);\r
- ASSERT (((UINTN) Format & 0x01) == 0);\r
+ ASSERT (((UINTN) Format & BIT0) == 0);\r
\r
BufferSize = (PcdGet32 (PcdUefiLibMaxPrintBufferSize) + 1) * sizeof (CHAR16);\r
\r
\r
Return = UnicodeVSPrint (Buffer, BufferSize, Format, Marker);\r
\r
- if (Console != NULL) {\r
+ if (Console != NULL && Return > 0) {\r
//\r
// To be extra safe make sure Console has been initialized\r
//\r
return Return;\r
}\r
\r
-/**\r
- Prints a formatted Unicode string to the console output device specified by\r
+/** \r
+ Prints a formatted Unicode string to the console output device specified by \r
ConOut defined in the EFI_SYSTEM_TABLE.\r
\r
- This function prints a formatted Unicode string to the console output device\r
- specified by ConOut in EFI_SYSTEM_TABLE and returns the number of Unicode\r
- characters that printed to ConOut. If the length of the formatted Unicode\r
- string is greater than PcdUefiLibMaxPrintBufferSize, then only the first\r
+ This function prints a formatted Unicode string to the console output device \r
+ specified by ConOut in EFI_SYSTEM_TABLE and returns the number of Unicode \r
+ characters that printed to ConOut. If the length of the formatted Unicode \r
+ string is greater than PcdUefiLibMaxPrintBufferSize, then only the first \r
PcdUefiLibMaxPrintBufferSize characters are sent to ConOut.\r
+ If Format is NULL, then ASSERT().\r
+ If Format is not aligned on a 16-bit boundary, then ASSERT().\r
\r
@param Format Null-terminated Unicode format string.\r
@param ... Variable argument list whose contents are accessed based \r
on the format string specified by Format.\r
- If Format is NULL, then ASSERT().\r
- If Format is not aligned on a 16-bit boundary, then ASSERT().\r
+ \r
+ @return Number of Unicode characters printed to ConOut.\r
\r
**/\r
UINTN\r
return Return;\r
}\r
\r
-/**\r
- Prints a formatted Unicode string to the console output device specified by\r
+/** \r
+ Prints a formatted Unicode string to the console output device specified by \r
StdErr defined in the EFI_SYSTEM_TABLE.\r
\r
- This function prints a formatted Unicode string to the console output device\r
- specified by StdErr in EFI_SYSTEM_TABLE and returns the number of Unicode\r
- characters that printed to StdErr. If the length of the formatted Unicode\r
- string is greater than PcdUefiLibMaxPrintBufferSize, then only the first\r
+ This function prints a formatted Unicode string to the console output device \r
+ specified by StdErr in EFI_SYSTEM_TABLE and returns the number of Unicode \r
+ characters that printed to StdErr. If the length of the formatted Unicode \r
+ string is greater than PcdUefiLibMaxPrintBufferSize, then only the first \r
PcdUefiLibMaxPrintBufferSize characters are sent to StdErr.\r
+ If Format is NULL, then ASSERT().\r
+ If Format is not aligned on a 16-bit boundary, then ASSERT().\r
\r
@param Format Null-terminated Unicode format string.\r
@param ... Variable argument list whose contents are accessed based \r
on the format string specified by Format.\r
- If Format is NULL, then ASSERT().\r
- If Format is not aligned on a 16-bit boundary, then ASSERT().\r
+ \r
+ @return Number of Unicode characters printed to StdErr.\r
\r
**/\r
-\r
UINTN\r
EFIAPI\r
ErrorPrint (\r
to it. If the length of the formatted ASCII string is greater than PcdUefiLibMaxPrintBufferSize,\r
then only the first PcdUefiLibMaxPrintBufferSize characters are sent to Console.\r
\r
+ If Format is NULL, then ASSERT().\r
+\r
@param Format Null-terminated ASCII format string.\r
@param Console The output console.\r
@param Marker VA_LIST marker for the variable argument list.\r
\r
- If Format is NULL, then ASSERT().\r
+ @return The number of Unicode characters in the produced\r
+ output buffer not including the Null-terminator.\r
\r
**/\r
-\r
UINTN\r
AsciiInternalPrint (\r
IN CONST CHAR8 *Format,\r
return Return;\r
}\r
\r
-/**\r
- Prints a formatted ASCII string to the console output device specified by\r
+/** \r
+ Prints a formatted ASCII string to the console output device specified by \r
ConOut defined in the EFI_SYSTEM_TABLE.\r
\r
- This function prints a formatted ASCII string to the console output device\r
- specified by ConOut in EFI_SYSTEM_TABLE and returns the number of ASCII\r
- characters that printed to ConOut. If the length of the formatted ASCII\r
- string is greater than PcdUefiLibMaxPrintBufferSize, then only the first\r
+ This function prints a formatted ASCII string to the console output device \r
+ specified by ConOut in EFI_SYSTEM_TABLE and returns the number of ASCII \r
+ characters that printed to ConOut. If the length of the formatted ASCII \r
+ string is greater than PcdUefiLibMaxPrintBufferSize, then only the first \r
PcdUefiLibMaxPrintBufferSize characters are sent to ConOut.\r
+ If Format is NULL, then ASSERT().\r
\r
@param Format Null-terminated ASCII format string.\r
@param ... Variable argument list whose contents are accessed based \r
on the format string specified by Format.\r
- If Format is NULL, then ASSERT().\r
- If Format is not aligned on a 16-bit boundary, then ASSERT().\r
+ \r
+ @return Number of ASCII characters printed to ConOut.\r
\r
**/\r
UINTN\r
{\r
VA_LIST Marker;\r
UINTN Return;\r
-\r
+ ASSERT (Format != NULL);\r
+ \r
VA_START (Marker, Format);\r
\r
Return = AsciiInternalPrint( Format, gST->ConOut, Marker);\r
return Return;\r
}\r
\r
-/**\r
- Prints a formatted ASCII string to the console output device specified by\r
+/** \r
+ Prints a formatted ASCII string to the console output device specified by \r
StdErr defined in the EFI_SYSTEM_TABLE.\r
\r
- This function prints a formatted ASCII string to the console output device\r
- specified by StdErr in EFI_SYSTEM_TABLE and returns the number of ASCII\r
- characters that printed to StdErr. If the length of the formatted ASCII\r
- string is greater than PcdUefiLibMaxPrintBufferSize, then only the first\r
+ This function prints a formatted ASCII string to the console output device \r
+ specified by StdErr in EFI_SYSTEM_TABLE and returns the number of ASCII \r
+ characters that printed to StdErr. If the length of the formatted ASCII \r
+ string is greater than PcdUefiLibMaxPrintBufferSize, then only the first \r
PcdUefiLibMaxPrintBufferSize characters are sent to StdErr.\r
+ If Format is NULL, then ASSERT().\r
\r
@param Format Null-terminated ASCII format string.\r
@param ... Variable argument list whose contents are accessed based \r
on the format string specified by Format.\r
- If Format is NULL, then ASSERT().\r
- If Format is not aligned on a 16-bit boundary, then ASSERT().\r
+ \r
+ @return Number of ASCII characters printed to ConErr.\r
\r
**/\r
UINTN\r
VA_LIST Marker;\r
UINTN Return;\r
\r
+ ASSERT (Format != NULL);\r
+ \r
VA_START (Marker, Format);\r
\r
Return = AsciiInternalPrint( Format, gST->StdErr, Marker);\r
return Return;\r
}\r
\r
+/**\r
+ Internal function to print a formatted Unicode string to a graphics console device specified by \r
+ ConsoleOutputHandle defined in the EFI_SYSTEM_TABLE at the given (X,Y) coordinates.\r
+\r
+ This function prints a formatted Unicode string to the graphics console device \r
+ specified by ConsoleOutputHandle in EFI_SYSTEM_TABLE and returns the number of \r
+ Unicode characters printed. The EFI_HII_FONT_PROTOCOL is used to convert the \r
+ string to a bitmap using the glyphs registered with the \r
+ HII database. No wrapping is performed, so any portions of the string the fall\r
+ outside the active display region will not be displayed.\r
+\r
+ If a graphics console device is not associated with the ConsoleOutputHandle \r
+ defined in the EFI_SYSTEM_TABLE then no string is printed, and 0 is returned.\r
+ If the EFI_HII_FONT_PROTOCOL is not present in the handle database, then no \r
+ string is printed, and 0 is returned.\r
+\r
+ @param X X coordinate to print the string.\r
+ @param Y Y coordinate to print the string.\r
+ @param ForeGround The forground color of the string being printed. This is\r
+ an optional parameter that may be NULL. If it is NULL,\r
+ then the foreground color of the current ConOut device\r
+ in the EFI_SYSTEM_TABLE is used.\r
+ @param BackGround The background color of the string being printed. This is\r
+ an optional parameter that may be NULL. If it is NULL, \r
+ then the background color of the current ConOut device\r
+ in the EFI_SYSTEM_TABLE is used.\r
+ @param Buffer Null-terminated Unicode formatted string.\r
+ @param PrintNum The number of Unicode formatted string to be printed.\r
+\r
+ @return Number of Unicode Characters printed. Zero means no any character \r
+ displayed successfully.\r
+\r
+**/\r
+UINTN\r
+InternalPrintGraphic (\r
+ IN UINTN X,\r
+ IN UINTN Y,\r
+ IN EFI_GRAPHICS_OUTPUT_BLT_PIXEL *Foreground,\r
+ IN EFI_GRAPHICS_OUTPUT_BLT_PIXEL *Background,\r
+ IN CHAR16 *Buffer,\r
+ IN UINTN PrintNum\r
+ )\r
+{\r
+ EFI_STATUS Status;\r
+ UINTN Index;\r
+ CHAR16 *UnicodeWeight;\r
+ UINT32 HorizontalResolution;\r
+ UINT32 VerticalResolution;\r
+ UINT32 ColorDepth;\r
+ UINT32 RefreshRate;\r
+ UINTN LineBufferLen;\r
+ EFI_HII_FONT_PROTOCOL *HiiFont;\r
+ EFI_IMAGE_OUTPUT *Blt;\r
+ EFI_FONT_DISPLAY_INFO FontInfo;\r
+ EFI_HII_ROW_INFO *RowInfoArray;\r
+ UINTN RowInfoArraySize;\r
+ EFI_GRAPHICS_OUTPUT_PROTOCOL *GraphicsOutput;\r
+ EFI_UGA_DRAW_PROTOCOL *UgaDraw;\r
+ EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *Sto;\r
+ EFI_HANDLE ConsoleHandle;\r
+\r
+ HorizontalResolution = 0;\r
+ VerticalResolution = 0;\r
+ Blt = NULL;\r
+\r
+ ConsoleHandle = gST->ConsoleOutHandle;\r
+\r
+ Status = gBS->HandleProtocol (\r
+ ConsoleHandle,\r
+ &gEfiGraphicsOutputProtocolGuid,\r
+ (VOID **) &GraphicsOutput\r
+ );\r
+\r
+ UgaDraw = NULL;\r
+ if (EFI_ERROR (Status) && FeaturePcdGet (PcdUgaConsumeSupport)) {\r
+ //\r
+ // If no GOP available, try to open UGA Draw protocol if supported.\r
+ //\r
+ GraphicsOutput = NULL;\r
+\r
+ Status = gBS->HandleProtocol (\r
+ ConsoleHandle,\r
+ &gEfiUgaDrawProtocolGuid,\r
+ (VOID **) &UgaDraw\r
+ );\r
+ }\r
+ if (EFI_ERROR (Status)) {\r
+ return 0;\r
+ }\r
+\r
+ Status = gBS->HandleProtocol (\r
+ ConsoleHandle,\r
+ &gEfiSimpleTextOutProtocolGuid,\r
+ (VOID **) &Sto\r
+ );\r
+\r
+ if (EFI_ERROR (Status)) {\r
+ return 0;\r
+ }\r
+\r
+ if (GraphicsOutput != NULL) {\r
+ HorizontalResolution = GraphicsOutput->Mode->Info->HorizontalResolution;\r
+ VerticalResolution = GraphicsOutput->Mode->Info->VerticalResolution;\r
+ } else if (FeaturePcdGet (PcdUgaConsumeSupport)) {\r
+ UgaDraw->GetMode (UgaDraw, &HorizontalResolution, &VerticalResolution, &ColorDepth, &RefreshRate);\r
+ } else {\r
+ Status = EFI_UNSUPPORTED;\r
+ goto Error;\r
+ }\r
+\r
+ ASSERT ((HorizontalResolution != 0) && (VerticalResolution !=0));\r
+\r
+ Status = gBS->LocateProtocol (&gEfiHiiFontProtocolGuid, NULL, (VOID **) &HiiFont);\r
+ if (EFI_ERROR (Status)) {\r
+ goto Error;\r
+ }\r
+\r
+ UnicodeWeight = Buffer;\r
+\r
+ for (Index = 0; UnicodeWeight[Index] != 0; Index++) {\r
+ if (UnicodeWeight[Index] == CHAR_BACKSPACE ||\r
+ UnicodeWeight[Index] == CHAR_LINEFEED ||\r
+ UnicodeWeight[Index] == CHAR_CARRIAGE_RETURN) {\r
+ UnicodeWeight[Index] = 0;\r
+ }\r
+ }\r
+\r
+ LineBufferLen = sizeof (EFI_GRAPHICS_OUTPUT_BLT_PIXEL) * HorizontalResolution * EFI_GLYPH_HEIGHT;\r
+ if (EFI_GLYPH_WIDTH * EFI_GLYPH_HEIGHT * sizeof(EFI_GRAPHICS_OUTPUT_BLT_PIXEL) * PrintNum > LineBufferLen) {\r
+ Status = EFI_INVALID_PARAMETER;\r
+ goto Error;\r
+ }\r
+\r
+ Blt = (EFI_IMAGE_OUTPUT *) AllocateZeroPool (sizeof (EFI_IMAGE_OUTPUT));\r
+ ASSERT (Blt != NULL);\r
+\r
+ Blt->Width = (UINT16) (HorizontalResolution);\r
+ Blt->Height = (UINT16) (VerticalResolution);\r
+\r
+ ZeroMem (&FontInfo, sizeof (EFI_FONT_DISPLAY_INFO));\r
+\r
+ if (Foreground != NULL) {\r
+ CopyMem (&FontInfo.ForegroundColor, Foreground, sizeof (EFI_GRAPHICS_OUTPUT_BLT_PIXEL));\r
+ } else {\r
+ CopyMem (\r
+ &FontInfo.ForegroundColor,\r
+ &mEfiColors[Sto->Mode->Attribute & 0x0f],\r
+ sizeof (EFI_GRAPHICS_OUTPUT_BLT_PIXEL)\r
+ );\r
+ }\r
+ if (Background != NULL) {\r
+ CopyMem (&FontInfo.BackgroundColor, Background, sizeof (EFI_GRAPHICS_OUTPUT_BLT_PIXEL));\r
+ } else {\r
+ CopyMem (\r
+ &FontInfo.BackgroundColor,\r
+ &mEfiColors[Sto->Mode->Attribute >> 4],\r
+ sizeof (EFI_GRAPHICS_OUTPUT_BLT_PIXEL)\r
+ );\r
+ }\r
+\r
+ if (GraphicsOutput != NULL) {\r
+ Blt->Image.Screen = GraphicsOutput;\r
+ \r
+ Status = HiiFont->StringToImage (\r
+ HiiFont,\r
+ EFI_HII_IGNORE_IF_NO_GLYPH | EFI_HII_DIRECT_TO_SCREEN,\r
+ Buffer,\r
+ &FontInfo,\r
+ &Blt,\r
+ X,\r
+ Y,\r
+ NULL,\r
+ NULL,\r
+ NULL\r
+ );\r
+\r
+ } else if (FeaturePcdGet (PcdUgaConsumeSupport)) {\r
+ ASSERT (UgaDraw!= NULL);\r
+\r
+ Blt->Image.Bitmap = AllocateZeroPool (Blt->Width * Blt->Height * sizeof (EFI_GRAPHICS_OUTPUT_BLT_PIXEL));\r
+ ASSERT (Blt->Image.Bitmap != NULL);\r
+\r
+ RowInfoArray = NULL;\r
+ //\r
+ // StringToImage only support blt'ing image to device using GOP protocol. If GOP is not supported in this platform,\r
+ // we ask StringToImage to print the string to blt buffer, then blt to device using UgaDraw.\r
+ //\r
+ Status = HiiFont->StringToImage (\r
+ HiiFont,\r
+ EFI_HII_IGNORE_IF_NO_GLYPH,\r
+ Buffer,\r
+ &FontInfo,\r
+ &Blt,\r
+ X,\r
+ Y,\r
+ &RowInfoArray,\r
+ &RowInfoArraySize,\r
+ NULL\r
+ );\r
+\r
+ if (!EFI_ERROR (Status)) {\r
+ ASSERT (RowInfoArray != NULL);\r
+ //\r
+ // Line breaks are handled by caller of DrawUnicodeWeightAtCursorN, so the updated parameter RowInfoArraySize by StringToImage will\r
+ // always be 1 or 0 (if there is no valid Unicode Char can be printed). ASSERT here to make sure.\r
+ //\r
+ ASSERT (RowInfoArraySize <= 1);\r
+\r
+ Status = UgaDraw->Blt (\r
+ UgaDraw,\r
+ (EFI_UGA_PIXEL *) Blt->Image.Bitmap,\r
+ EfiUgaBltBufferToVideo,\r
+ X,\r
+ Y,\r
+ X,\r
+ Y,\r
+ RowInfoArray[0].LineWidth,\r
+ RowInfoArray[0].LineHeight,\r
+ Blt->Width * sizeof (EFI_GRAPHICS_OUTPUT_BLT_PIXEL)\r
+ );\r
+ }\r
+\r
+ FreePool (RowInfoArray);\r
+ FreePool (Blt->Image.Bitmap);\r
+\r
+ } else {\r
+ Status = EFI_UNSUPPORTED;\r
+ }\r
+\r
+ FreePool (Blt);\r
+\r
+Error:\r
+ if (EFI_ERROR (Status)) {\r
+ return 0;\r
+ } else {\r
+ return PrintNum;\r
+ }\r
+}\r
+\r
+/**\r
+ Prints a formatted Unicode string to a graphics console device specified by \r
+ ConsoleOutputHandle defined in the EFI_SYSTEM_TABLE at the given (X,Y) coordinates.\r
+\r
+ This function prints a formatted Unicode string to the graphics console device \r
+ specified by ConsoleOutputHandle in EFI_SYSTEM_TABLE and returns the number of \r
+ Unicode characters printed. If the length of the formatted Unicode string is\r
+ greater than PcdUefiLibMaxPrintBufferSize, then only the first \r
+ PcdUefiLibMaxPrintBufferSize characters are printed. The EFI_HII_FONT_PROTOCOL\r
+ is used to convert the string to a bitmap using the glyphs registered with the \r
+ HII database. No wrapping is performed, so any portions of the string the fall\r
+ outside the active display region will not be displayed.\r
+\r
+ If a graphics console device is not associated with the ConsoleOutputHandle \r
+ defined in the EFI_SYSTEM_TABLE then no string is printed, and 0 is returned.\r
+ If the EFI_HII_FONT_PROTOCOL is not present in the handle database, then no \r
+ string is printed, and 0 is returned.\r
+ If Format is NULL, then ASSERT().\r
+ If Format is not aligned on a 16-bit boundary, then ASSERT().\r
+\r
+ @param X X coordinate to print the string.\r
+ @param Y Y coordinate to print the string.\r
+ @param ForeGround The forground color of the string being printed. This is\r
+ an optional parameter that may be NULL. If it is NULL,\r
+ then the foreground color of the current ConOut device\r
+ in the EFI_SYSTEM_TABLE is used.\r
+ @param BackGround The background color of the string being printed. This is\r
+ an optional parameter that may be NULL. If it is NULL, \r
+ then the background color of the current ConOut device\r
+ in the EFI_SYSTEM_TABLE is used.\r
+ @param Format Null-terminated Unicode format string. See Print Library \r
+ for the supported format string syntax.\r
+ @param ... Variable argument list whose contents are accessed based on \r
+ the format string specified by Format. \r
+\r
+ @return The number of Unicode characters printed.\r
+\r
+**/\r
+UINTN\r
+EFIAPI\r
+PrintXY (\r
+ IN UINTN X,\r
+ IN UINTN Y,\r
+ IN EFI_GRAPHICS_OUTPUT_BLT_PIXEL *ForeGround, OPTIONAL\r
+ IN EFI_GRAPHICS_OUTPUT_BLT_PIXEL *BackGround, OPTIONAL\r
+ IN CONST CHAR16 *Format,\r
+ ...\r
+ )\r
+{\r
+ VA_LIST Marker;\r
+ CHAR16 *Buffer;\r
+ UINTN BufferSize;\r
+ UINTN PrintNum;\r
+ UINTN ReturnNum;\r
+\r
+ ASSERT (Format != NULL);\r
+ ASSERT (((UINTN) Format & BIT0) == 0);\r
+\r
+ VA_START (Marker, Format);\r
+\r
+ BufferSize = (PcdGet32 (PcdUefiLibMaxPrintBufferSize) + 1) * sizeof (CHAR16);\r
+\r
+ Buffer = (CHAR16 *) AllocatePool (BufferSize);\r
+ ASSERT (Buffer != NULL);\r
+ \r
+ PrintNum = UnicodeVSPrint (Buffer, BufferSize, Format, Marker);\r
+\r
+ ReturnNum = InternalPrintGraphic (X, Y, ForeGround, BackGround, Buffer, PrintNum);\r
+\r
+ FreePool (Buffer);\r
+\r
+ return ReturnNum;\r
+}\r
+\r
+/**\r
+ Prints a formatted ASCII string to a graphics console device specified by \r
+ ConsoleOutputHandle defined in the EFI_SYSTEM_TABLE at the given (X,Y) coordinates.\r
+\r
+ This function prints a formatted ASCII string to the graphics console device \r
+ specified by ConsoleOutputHandle in EFI_SYSTEM_TABLE and returns the number of \r
+ ASCII characters printed. If the length of the formatted ASCII string is\r
+ greater than PcdUefiLibMaxPrintBufferSize, then only the first \r
+ PcdUefiLibMaxPrintBufferSize characters are printed. The EFI_HII_FONT_PROTOCOL\r
+ is used to convert the string to a bitmap using the glyphs registered with the \r
+ HII database. No wrapping is performed, so any portions of the string the fall\r
+ outside the active display region will not be displayed.\r
+\r
+ If a graphics console device is not associated with the ConsoleOutputHandle \r
+ defined in the EFI_SYSTEM_TABLE then no string is printed, and 0 is returned.\r
+ If the EFI_HII_FONT_PROTOCOL is not present in the handle database, then no \r
+ string is printed, and 0 is returned.\r
+ If Format is NULL, then ASSERT().\r
+\r
+ @param X X coordinate to print the string.\r
+ @param Y Y coordinate to print the string.\r
+ @param ForeGround The forground color of the string being printed. This is\r
+ an optional parameter that may be NULL. If it is NULL,\r
+ then the foreground color of the current ConOut device\r
+ in the EFI_SYSTEM_TABLE is used.\r
+ @param BackGround The background color of the string being printed. This is\r
+ an optional parameter that may be NULL. If it is NULL, \r
+ then the background color of the current ConOut device\r
+ in the EFI_SYSTEM_TABLE is used.\r
+ @param Format Null-terminated ASCII format string. See Print Library \r
+ for the supported format string syntax.\r
+ @param ... Variable argument list whose contents are accessed based on \r
+ the format string specified by Format. \r
+\r
+ @return The number of ASCII characters printed.\r
+\r
+**/\r
+UINTN\r
+EFIAPI\r
+AsciiPrintXY (\r
+ IN UINTN X,\r
+ IN UINTN Y,\r
+ IN EFI_GRAPHICS_OUTPUT_BLT_PIXEL *ForeGround, OPTIONAL\r
+ IN EFI_GRAPHICS_OUTPUT_BLT_PIXEL *BackGround, OPTIONAL\r
+ IN CONST CHAR8 *Format,\r
+ ...\r
+ )\r
+{\r
+ VA_LIST Marker;\r
+ CHAR16 *Buffer;\r
+ UINTN BufferSize;\r
+ UINTN PrintNum;\r
+ UINTN ReturnNum;\r
+\r
+ ASSERT (Format != NULL);\r
+\r
+ VA_START (Marker, Format);\r
+\r
+ BufferSize = (PcdGet32 (PcdUefiLibMaxPrintBufferSize) + 1) * sizeof (CHAR16);\r
+\r
+ Buffer = (CHAR16 *) AllocatePool (BufferSize);\r
+ ASSERT (Buffer != NULL);\r
+ \r
+ PrintNum = UnicodeSPrintAsciiFormat (Buffer, BufferSize, Format, Marker);\r
+\r
+ ReturnNum = InternalPrintGraphic (X, Y, ForeGround, BackGround, Buffer, PrintNum);\r
+\r
+ FreePool (Buffer);\r
+ \r
+ return ReturnNum;\r
+}\r
+\r
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