diff options
| author | bbahnsen <bbahnsen@6f19259b-4bc3-4df7-8a09-765794883524> | 2006-04-21 22:54:32 +0000 |
|---|---|---|
| committer | bbahnsen <bbahnsen@6f19259b-4bc3-4df7-8a09-765794883524> | 2006-04-21 22:54:32 +0000 |
| commit | 878ddf1fc3540a715f63594ed22b6929e881afb4 (patch) | |
| tree | c56c44dac138137b510e1fba7c3efe5e4d84bea2 /MdePkg/Library/BasePrintLib/PrintLibInternal.c | |
Initial import.
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@3 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'MdePkg/Library/BasePrintLib/PrintLibInternal.c')
| -rw-r--r-- | MdePkg/Library/BasePrintLib/PrintLibInternal.c | 153 |
1 files changed, 153 insertions, 0 deletions
diff --git a/MdePkg/Library/BasePrintLib/PrintLibInternal.c b/MdePkg/Library/BasePrintLib/PrintLibInternal.c new file mode 100644 index 000000000..24d8b5659 --- /dev/null +++ b/MdePkg/Library/BasePrintLib/PrintLibInternal.c @@ -0,0 +1,153 @@ +/** @file
+ Print Library worker functions.
+
+ Copyright (c) 2006, Intel Corporation<BR>
+ All rights reserved. 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.
+
+ Module Name: PrintLibInternal.c
+
+**/
+
+#include "PrintLibInternal.h"
+
+static CONST CHAR8 mHexStr[] = {'0','1','2','3','4','5','6','7','8','9','A','B','C','D','E','F'};
+
+CHAR8 *
+BasePrintLibFillBuffer (
+ CHAR8 *Buffer,
+ INTN Length,
+ UINTN Character,
+ INTN Increment
+ )
+{
+ INTN Index;
+
+ for (Index = 0; Index < Length; Index++) {
+ *Buffer = (CHAR8) Character;
+ *(Buffer + 1) = (CHAR8) (Character >> 8);
+ Buffer += Increment;
+ }
+ return Buffer;
+}
+
+/**
+ Print worker function that prints a Value as a decimal number in Buffer.
+
+ @param Buffer Location to place the Unicode or ASCII string of Value.
+
+ @param Value Value to convert to a Decimal or Hexidecimal string in Buffer.
+
+ @param Flags Flags to use in printing string, see file header for details.
+
+ @param Precision Minimum number of digits to return in the ASCII string
+
+ @return Number of characters printed.
+
+**/
+UINTN
+EFIAPI
+BasePrintLibValueToString (
+ IN OUT CHAR8 *Buffer,
+ IN INT64 Value,
+ IN UINTN Radix
+ )
+{
+ UINTN Digits;
+ UINT32 Remainder;
+
+ //
+ // Loop to convert one digit at a time in reverse order
+ //
+ *(Buffer++) = 0;
+ Digits = 0;
+ do {
+ Value = (INT64)DivU64x32Remainder ((UINT64)Value, (UINT32)Radix, &Remainder);
+ *(Buffer++) = mHexStr[Remainder];
+ Digits++;
+ } while (Value != 0);
+ return Digits;
+}
+
+UINTN
+BasePrintLibConvertValueToString (
+ IN OUT CHAR8 *Buffer,
+ IN UINTN Flags,
+ IN INT64 Value,
+ IN UINTN Width,
+ IN UINTN Increment
+ )
+{
+ CHAR8 *OriginalBuffer;
+ CHAR8 ValueBuffer[MAXIMUM_VALUE_CHARACTERS];
+ UINTN Count;
+ UINTN Digits;
+ UINTN Index;
+
+ OriginalBuffer = Buffer;
+
+ if (Width == 0 || (Flags & COMMA_TYPE) != 0) {
+ Flags &= (~PREFIX_ZERO);
+ }
+
+ if (Width == 0 || Width > (MAXIMUM_VALUE_CHARACTERS - 1)) {
+ Width = MAXIMUM_VALUE_CHARACTERS - 1;
+ }
+
+ if (Value < 0) {
+ Value = -Value;
+ Buffer = BasePrintLibFillBuffer (Buffer, 1, '-', Increment);
+ }
+
+ Count = BasePrintLibValueToString (ValueBuffer, Value, 10);
+
+ if ((Flags & PREFIX_ZERO) != 0) {
+ Buffer = BasePrintLibFillBuffer (Buffer, Width - Count, '0', Increment);
+ }
+
+ Digits = 3 - (Count % 3);
+ for (Index = 0; Index < Count; Index++) {
+ Buffer = BasePrintLibFillBuffer (Buffer, 1, ValueBuffer[Count - Index], Increment);
+ if ((Flags & COMMA_TYPE) != 0) {
+ Digits++;
+ if (Digits == 3) {
+ Digits = 0;
+ if ((Index + 1) < Count) {
+ Buffer = BasePrintLibFillBuffer (Buffer, 1, ',', Increment);
+ }
+ }
+ }
+ }
+
+ Buffer = BasePrintLibFillBuffer (Buffer, 1, 0, Increment);
+
+ return ((Buffer - OriginalBuffer) / Increment);
+}
+
+
+UINTN
+UnicodeValueToString (
+ IN OUT CHAR16 *Buffer,
+ IN UINTN Flags,
+ IN INT64 Value,
+ IN UINTN Width
+ )
+{
+ return BasePrintLibConvertValueToString ((CHAR8 *)Buffer, Flags, Value, Width, 2);
+}
+
+UINTN
+AsciiValueToString (
+ IN OUT CHAR8 *Buffer,
+ IN UINTN Flags,
+ IN INT64 Value,
+ IN UINTN Width
+ )
+{
+ return BasePrintLibConvertValueToString ((CHAR8 *)Buffer, Flags, Value, Width, 1);
+}
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