--- /dev/null
+/** @file\r
+Basic Ascii AvSPrintf() function named VSPrint(). VSPrint() enables very\r
+simple implemenation of SPrint() and Print() to support debug.\r
+\r
+You can not Print more than EFI_DRIVER_LIB_MAX_PRINT_BUFFER characters at a\r
+time. This makes the implementation very simple.\r
+\r
+VSPrint, Print, SPrint format specification has the follwoing form\r
+\r
+%type\r
+\r
+type:\r
+ 'S','s' - argument is an Unicode string\r
+ 'c' - argument is an ascii character\r
+ '%' - Print a %\r
+\r
+\r
+Copyright (c) 2004 - 2012, Intel Corporation. All rights reserved.<BR>\r
+This program and the accompanying materials\r
+are licensed and made available under the terms and conditions of the BSD License\r
+which accompanies this distribution. The full text of the license may be found at\r
+http://opensource.org/licenses/bsd-license.php\r
+\r
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
+\r
+**/\r
+\r
+#include "Setup.h"\r
+\r
+/**\r
+ The internal function prints to the EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL\r
+ protocol instance.\r
+\r
+ @param Column The position of the output string.\r
+ @param Row The position of the output string.\r
+ @param Out The EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL instance.\r
+ @param Fmt The format string.\r
+ @param Args The additional argument for the variables in the format string.\r
+\r
+ @return Number of Unicode character printed.\r
+\r
+**/\r
+UINTN\r
+PrintInternal (\r
+ IN UINTN Column,\r
+ IN UINTN Row,\r
+ IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *Out,\r
+ IN CHAR16 *Fmt,\r
+ IN VA_LIST Args\r
+ )\r
+{\r
+ CHAR16 *Buffer;\r
+ CHAR16 *BackupBuffer;\r
+ UINTN Index;\r
+ UINTN PreviousIndex;\r
+ UINTN Count;\r
+\r
+ //\r
+ // For now, allocate an arbitrarily long buffer\r
+ //\r
+ Buffer = AllocateZeroPool (0x10000);\r
+ BackupBuffer = AllocateZeroPool (0x10000);\r
+ ASSERT (Buffer);\r
+ ASSERT (BackupBuffer);\r
+\r
+ if (Column != (UINTN) -1) {\r
+ Out->SetCursorPosition (Out, Column, Row);\r
+ }\r
+\r
+ UnicodeVSPrint (Buffer, 0x10000, Fmt, Args);\r
+\r
+ Out->Mode->Attribute = Out->Mode->Attribute & 0x7f;\r
+\r
+ Out->SetAttribute (Out, Out->Mode->Attribute);\r
+\r
+ Index = 0;\r
+ PreviousIndex = 0;\r
+ Count = 0;\r
+\r
+ do {\r
+ for (; (Buffer[Index] != NARROW_CHAR) && (Buffer[Index] != WIDE_CHAR) && (Buffer[Index] != 0); Index++) {\r
+ BackupBuffer[Index] = Buffer[Index];\r
+ }\r
+\r
+ if (Buffer[Index] == 0) {\r
+ break;\r
+ }\r
+ //\r
+ // Null-terminate the temporary string\r
+ //\r
+ BackupBuffer[Index] = 0;\r
+\r
+ //\r
+ // Print this out, we are about to switch widths\r
+ //\r
+ Out->OutputString (Out, &BackupBuffer[PreviousIndex]);\r
+ Count += StrLen (&BackupBuffer[PreviousIndex]);\r
+\r
+ //\r
+ // Preserve the current index + 1, since this is where we will start printing from next\r
+ //\r
+ PreviousIndex = Index + 1;\r
+\r
+ //\r
+ // We are at a narrow or wide character directive. Set attributes and strip it and print it\r
+ //\r
+ if (Buffer[Index] == NARROW_CHAR) {\r
+ //\r
+ // Preserve bits 0 - 6 and zero out the rest\r
+ //\r
+ Out->Mode->Attribute = Out->Mode->Attribute & 0x7f;\r
+ Out->SetAttribute (Out, Out->Mode->Attribute);\r
+ } else {\r
+ //\r
+ // Must be wide, set bit 7 ON\r
+ //\r
+ Out->Mode->Attribute = Out->Mode->Attribute | EFI_WIDE_ATTRIBUTE;\r
+ Out->SetAttribute (Out, Out->Mode->Attribute);\r
+ }\r
+\r
+ Index++;\r
+\r
+ } while (Buffer[Index] != 0);\r
+\r
+ //\r
+ // We hit the end of the string - print it\r
+ //\r
+ Out->OutputString (Out, &BackupBuffer[PreviousIndex]);\r
+ Count += StrLen (&BackupBuffer[PreviousIndex]);\r
+\r
+ FreePool (Buffer);\r
+ FreePool (BackupBuffer);\r
+ return Count;\r
+}\r
+\r
+\r
+/**\r
+ Prints a formatted unicode string to the default console.\r
+\r
+ @param Fmt Format string\r
+ @param ... Variable argument list for format string.\r
+\r
+ @return Length of string printed to the console.\r
+\r
+**/\r
+UINTN\r
+EFIAPI\r
+ConsolePrint (\r
+ IN CHAR16 *Fmt,\r
+ ...\r
+ )\r
+{\r
+ VA_LIST Args;\r
+ UINTN LengthOfPrinted;\r
+\r
+ VA_START (Args, Fmt);\r
+ LengthOfPrinted = PrintInternal ((UINTN) -1, (UINTN) -1, gST->ConOut, Fmt, Args);\r
+ VA_END (Args);\r
+ return LengthOfPrinted;\r
+}\r
+\r
+\r
+/**\r
+ Prints a unicode string to the default console,\r
+ using L"%s" format.\r
+\r
+ @param String String pointer.\r
+\r
+ @return Length of string printed to the console\r
+\r
+**/\r
+UINTN\r
+PrintString (\r
+ IN CHAR16 *String\r
+ )\r
+{\r
+ return ConsolePrint (L"%s", String);\r
+}\r
+\r
+\r
+/**\r
+ Prints a chracter to the default console,\r
+ using L"%c" format.\r
+\r
+ @param Character Character to print.\r
+\r
+ @return Length of string printed to the console.\r
+\r
+**/\r
+UINTN\r
+PrintChar (\r
+ CHAR16 Character\r
+ )\r
+{\r
+ return ConsolePrint (L"%c", Character);\r
+}\r
+\r
+\r
+/**\r
+ Prints a formatted unicode string to the default console, at\r
+ the supplied cursor position.\r
+\r
+ @param Column The cursor position to print the string at.\r
+ @param Row The cursor position to print the string at.\r
+ @param Fmt Format string.\r
+ @param ... Variable argument list for format string.\r
+\r
+ @return Length of string printed to the console\r
+\r
+**/\r
+UINTN\r
+EFIAPI\r
+PrintAt (\r
+ IN UINTN Column,\r
+ IN UINTN Row,\r
+ IN CHAR16 *Fmt,\r
+ ...\r
+ )\r
+{\r
+ VA_LIST Args;\r
+ UINTN LengthOfPrinted;\r
+\r
+ VA_START (Args, Fmt);\r
+ LengthOfPrinted = PrintInternal (Column, Row, gST->ConOut, Fmt, Args);\r
+ VA_END (Args);\r
+ return LengthOfPrinted;\r
+}\r
+\r
+\r
+/**\r
+ Prints a unicode string to the default console, at\r
+ the supplied cursor position, using L"%s" format.\r
+\r
+ @param Column The cursor position to print the string at.\r
+ @param Row The cursor position to print the string at\r
+ @param String String pointer.\r
+\r
+ @return Length of string printed to the console\r
+\r
+**/\r
+UINTN\r
+PrintStringAt (\r
+ IN UINTN Column,\r
+ IN UINTN Row,\r
+ IN CHAR16 *String\r
+ )\r
+{\r
+ return PrintAt (Column, Row, L"%s", String);\r
+}\r
+\r
+\r
+/**\r
+ Prints a chracter to the default console, at\r
+ the supplied cursor position, using L"%c" format.\r
+\r
+ @param Column The cursor position to print the string at.\r
+ @param Row The cursor position to print the string at.\r
+ @param Character Character to print.\r
+\r
+ @return Length of string printed to the console.\r
+\r
+**/\r
+UINTN\r
+PrintCharAt (\r
+ IN UINTN Column,\r
+ IN UINTN Row,\r
+ CHAR16 Character\r
+ )\r
+{\r
+ return PrintAt (Column, Row, L"%c", Character);\r
+}\r
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