MdePkg/Library/BasePrintLib/PrintLibInternal.h

   1 /** @file
   2   Base Print Library instance Internal Functions definition.
   3
   4   Copyright (c) 2006 - 2008, Intel Corporation
   5   All rights reserved. This program and the accompanying materials
   6   are licensed and made available under the terms and conditions of the BSD License
   7   which accompanies this distribution.  The full text of the license may be found at
   8   http://opensource.org/licenses/bsd-license.php
   9
  10   THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  11   WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  12
  13 **/
  14
  15 #ifndef __PRINT_LIB_INTERNAL_H__
  16 #define __PRINT_LIB_INTERNAL_H__
  17
  18 #include <Base.h>
  19 #include <Library/PrintLib.h>
  20 #include <Library/BaseLib.h>
  21 #include <Library/DebugLib.h>
  22
  23
  24 //
  25 // Print primitives
  26 //
  27 //#define LEFT_JUSTIFY      0x01
  28 #define PREFIX_SIGN       0x02
  29 #define PREFIX_BLANK      0x04
  30 //#define COMMA_TYPE        0x08
  31 #define LONG_TYPE         0x10
  32 //#define PREFIX_ZERO       0x20
  33 #define OUTPUT_UNICODE    0x40
  34 //#define RADIX_HEX         0x80
  35 #define FORMAT_UNICODE    0x100
  36 #define PAD_TO_WIDTH      0x200
  37 #define ARGUMENT_UNICODE  0x400
  38 #define PRECISION         0x800
  39 #define ARGUMENT_REVERSED 0x1000
  40
  41 //
  42 // Record date and time information
  43 //
  44 typedef struct {
  45   UINT16  Year;
  46   UINT8   Month;
  47   UINT8   Day;
  48   UINT8   Hour;
  49   UINT8   Minute;
  50   UINT8   Second;
  51   UINT8   Pad1;
  52   UINT32  Nanosecond;
  53   INT16   TimeZone;
  54   UINT8   Daylight;
  55   UINT8   Pad2;
  56 } TIME;
  57
  58 /**
  59   Worker function that produces a Null-terminated string in an output buffer
  60   based on a Null-terminated format string and a VA_LIST argument list.
  61
  62   VSPrint function to process format and place the results in Buffer. Since a
  63   VA_LIST is used this rountine allows the nesting of Vararg routines. Thus
  64   this is the main print working routine.
  65
  66   @param  Buffer      Character buffer to print the results of the parsing
  67                       of Format into.
  68   @param  BufferSize  Maximum number of characters to put into buffer.
  69   @param  Flags       Intial flags value.
  70                       Can only have FORMAT_UNICODE and OUTPUT_UNICODE set.
  71   @param  Format      Null-terminated format string.
  72   @param  Marker      Vararg list consumed by processing Format.
  73
  74   @return Number of characters printed not including the Null-terminator.
  75
  76 **/
  77 UINTN
  78 BasePrintLibVSPrint (
  79   OUT CHAR8        *Buffer,
  80   IN  UINTN        BufferSize,
  81   IN  UINTN        Flags,
  82   IN  CONST CHAR8  *Format,
  83   IN  VA_LIST      Marker
  84   );
  85
  86 /**
  87   Worker function that produces a Null-terminated string in an output buffer
  88   based on a Null-terminated format string and variable argument list.
  89
  90   VSPrint function to process format and place the results in Buffer. Since a
  91   VA_LIST is used this rountine allows the nesting of Vararg routines. Thus
  92   this is the main print working routine
  93
  94   @param  StartOfBuffer Character buffer to print the results of the parsing
  95                         of Format into.
  96   @param  BufferSize    Maximum number of characters to put into buffer.
  97                         Zero means no limit.
  98   @param  Flags         Intial flags value.
  99                         Can only have FORMAT_UNICODE and OUTPUT_UNICODE set
 100   @param  FormatString  Null-terminated format string.
 101   @param  ...           The variable argument list.
 102
 103   @return Number of characters printed.
 104
 105 **/
 106 UINTN
 107 BasePrintLibSPrint (
 108   OUT CHAR8        *StartOfBuffer,
 109   IN  UINTN        BufferSize,
 110   IN  UINTN        Flags,
 111   IN  CONST CHAR8  *FormatString,
 112   ...
 113   );
 114
 115 /**
 116   Internal function that places the character into the Buffer.
 117
 118   Internal function that places ASCII or Unicode character into the Buffer.
 119
 120   @param  Buffer      Buffer to place the Unicode or ASCII string.
 121   @param  EndBuffer   The end of the input Buffer. No characters will be
 122                       placed after that.
 123   @param  Length      Count of character to be placed into Buffer.
 124   @param  Character   Character to be placed into Buffer.
 125   @param  Increment   Character increment in Buffer.
 126
 127   @return Buffer      Buffer filled with the input Character.
 128
 129 **/
 130 CHAR8 *
 131 BasePrintLibFillBuffer (
 132   OUT CHAR8   *Buffer,
 133   IN  CHAR8   *EndBuffer,
 134   IN  INTN    Length,
 135   IN  UINTN   Character,
 136   IN  INTN    Increment
 137   );
 138
 139 /**
 140   Internal function that convert a decimal number to a string in Buffer.
 141
 142   Print worker function that convert a decimal number to a string in Buffer.
 143
 144   @param  Buffer    Location to place the Unicode or ASCII string of Value.
 145   @param  Value     Value to convert to a Decimal or Hexidecimal string in Buffer.
 146   @param  Radix     Radix of the value
 147
 148   @return Number of characters printed.
 149
 150 **/
 151 UINTN
 152 BasePrintLibValueToString (
 153   IN OUT CHAR8  *Buffer,
 154   IN INT64      Value,
 155   IN UINTN      Radix
 156   );
 157
 158 /**
 159   Internal function that converts a decimal value to a Null-terminated string.
 160
 161   Converts the decimal number specified by Value to a Null-terminated
 162   string specified by Buffer containing at most Width characters.
 163   If Width is 0 then a width of  MAXIMUM_VALUE_CHARACTERS is assumed.
 164   The total number of characters placed in Buffer is returned.
 165   If the conversion contains more than Width characters, then only the first
 166   Width characters are returned, and the total number of characters
 167   required to perform the conversion is returned.
 168   Additional conversion parameters are specified in Flags.
 169   The Flags bit LEFT_JUSTIFY is always ignored.
 170   All conversions are left justified in Buffer.
 171   If Width is 0, PREFIX_ZERO is ignored in Flags.
 172   If COMMA_TYPE is set in Flags, then PREFIX_ZERO is ignored in Flags, and commas
 173   are inserted every 3rd digit starting from the right.
 174   If Value is < 0, then the fist character in Buffer is a '-'.
 175   If PREFIX_ZERO is set in Flags and PREFIX_ZERO is not being ignored,
 176   then Buffer is padded with '0' characters so the combination of the optional '-'
 177   sign character, '0' characters, digit characters for Value, and the Null-terminator
 178   add up to Width characters.
 179
 180   If Buffer is NULL, then ASSERT().
 181   If unsupported bits are set in Flags, then ASSERT().
 182   If Width >= MAXIMUM_VALUE_CHARACTERS, then ASSERT()
 183
 184   @param  Buffer    Pointer to the output buffer for the produced Null-terminated
 185                     string.
 186   @param  Flags     The bitmask of flags that specify left justification, zero pad,
 187                     and commas.
 188   @param  Value     The 64-bit signed value to convert to a string.
 189   @param  Width     The maximum number of characters to place in Buffer, not including
 190                     the Null-terminator.
 191   @param  Increment Character increment in Buffer.
 192
 193   @return Total number of characters required to perform the conversion.
 194
 195 **/
 196 UINTN
 197 BasePrintLibConvertValueToString (
 198   IN OUT CHAR8   *Buffer,
 199   IN UINTN       Flags,
 200   IN INT64       Value,
 201   IN UINTN       Width,
 202   IN UINTN       Increment
 203   );
 204
 205 #endif