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1 | /** @file\r | |
2 | Basic Ascii AvSPrintf() function named VSPrint(). VSPrint() enables very\r | |
3 | simple implemenation of SPrint() and Print() to support debug.\r | |
4 | \r | |
5 | You can not Print more than EFI_DRIVER_LIB_MAX_PRINT_BUFFER characters at a\r | |
6 | time. This makes the implementation very simple.\r | |
7 | \r | |
8 | VSPrint, Print, SPrint format specification has the follwoing form\r | |
9 | \r | |
10 | %type\r | |
11 | \r | |
12 | type:\r | |
13 | 'S','s' - argument is an Unicode string\r | |
14 | 'c' - argument is an ascii character\r | |
15 | '%' - Print a %\r | |
16 | \r | |
17 | \r | |
18 | Copyright (c) 2004 - 2012, Intel Corporation. All rights reserved.<BR>\r | |
19 | This program and the accompanying materials\r | |
20 | are licensed and made available under the terms and conditions of the BSD License\r | |
21 | which accompanies this distribution. The full text of the license may be found at\r | |
22 | http://opensource.org/licenses/bsd-license.php\r | |
23 | \r | |
24 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
25 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
26 | \r | |
27 | **/\r | |
28 | \r | |
29 | #include "Setup.h"\r | |
30 | \r | |
31 | /**\r | |
32 | The internal function prints to the EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL\r | |
33 | protocol instance.\r | |
34 | \r | |
35 | @param Column The position of the output string.\r | |
36 | @param Row The position of the output string.\r | |
37 | @param Out The EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL instance.\r | |
38 | @param Fmt The format string.\r | |
39 | @param Args The additional argument for the variables in the format string.\r | |
40 | \r | |
41 | @return Number of Unicode character printed.\r | |
42 | \r | |
43 | **/\r | |
44 | UINTN\r | |
45 | PrintInternal (\r | |
46 | IN UINTN Column,\r | |
47 | IN UINTN Row,\r | |
48 | IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *Out,\r | |
49 | IN CHAR16 *Fmt,\r | |
50 | IN VA_LIST Args\r | |
51 | )\r | |
52 | {\r | |
53 | CHAR16 *Buffer;\r | |
54 | CHAR16 *BackupBuffer;\r | |
55 | UINTN Index;\r | |
56 | UINTN PreviousIndex;\r | |
57 | UINTN Count;\r | |
58 | \r | |
59 | //\r | |
60 | // For now, allocate an arbitrarily long buffer\r | |
61 | //\r | |
62 | Buffer = AllocateZeroPool (0x10000);\r | |
63 | BackupBuffer = AllocateZeroPool (0x10000);\r | |
64 | ASSERT (Buffer);\r | |
65 | ASSERT (BackupBuffer);\r | |
66 | \r | |
67 | if (Column != (UINTN) -1) {\r | |
68 | Out->SetCursorPosition (Out, Column, Row);\r | |
69 | }\r | |
70 | \r | |
71 | UnicodeVSPrint (Buffer, 0x10000, Fmt, Args);\r | |
72 | \r | |
73 | Out->Mode->Attribute = Out->Mode->Attribute & 0x7f;\r | |
74 | \r | |
75 | Out->SetAttribute (Out, Out->Mode->Attribute);\r | |
76 | \r | |
77 | Index = 0;\r | |
78 | PreviousIndex = 0;\r | |
79 | Count = 0;\r | |
80 | \r | |
81 | do {\r | |
82 | for (; (Buffer[Index] != NARROW_CHAR) && (Buffer[Index] != WIDE_CHAR) && (Buffer[Index] != 0); Index++) {\r | |
83 | BackupBuffer[Index] = Buffer[Index];\r | |
84 | }\r | |
85 | \r | |
86 | if (Buffer[Index] == 0) {\r | |
87 | break;\r | |
88 | }\r | |
89 | //\r | |
90 | // Null-terminate the temporary string\r | |
91 | //\r | |
92 | BackupBuffer[Index] = 0;\r | |
93 | \r | |
94 | //\r | |
95 | // Print this out, we are about to switch widths\r | |
96 | //\r | |
97 | Out->OutputString (Out, &BackupBuffer[PreviousIndex]);\r | |
98 | Count += StrLen (&BackupBuffer[PreviousIndex]);\r | |
99 | \r | |
100 | //\r | |
101 | // Preserve the current index + 1, since this is where we will start printing from next\r | |
102 | //\r | |
103 | PreviousIndex = Index + 1;\r | |
104 | \r | |
105 | //\r | |
106 | // We are at a narrow or wide character directive. Set attributes and strip it and print it\r | |
107 | //\r | |
108 | if (Buffer[Index] == NARROW_CHAR) {\r | |
109 | //\r | |
110 | // Preserve bits 0 - 6 and zero out the rest\r | |
111 | //\r | |
112 | Out->Mode->Attribute = Out->Mode->Attribute & 0x7f;\r | |
113 | Out->SetAttribute (Out, Out->Mode->Attribute);\r | |
114 | } else {\r | |
115 | //\r | |
116 | // Must be wide, set bit 7 ON\r | |
117 | //\r | |
118 | Out->Mode->Attribute = Out->Mode->Attribute | EFI_WIDE_ATTRIBUTE;\r | |
119 | Out->SetAttribute (Out, Out->Mode->Attribute);\r | |
120 | }\r | |
121 | \r | |
122 | Index++;\r | |
123 | \r | |
124 | } while (Buffer[Index] != 0);\r | |
125 | \r | |
126 | //\r | |
127 | // We hit the end of the string - print it\r | |
128 | //\r | |
129 | Out->OutputString (Out, &BackupBuffer[PreviousIndex]);\r | |
130 | Count += StrLen (&BackupBuffer[PreviousIndex]);\r | |
131 | \r | |
132 | FreePool (Buffer);\r | |
133 | FreePool (BackupBuffer);\r | |
134 | return Count;\r | |
135 | }\r | |
136 | \r | |
137 | \r | |
138 | /**\r | |
139 | Prints a formatted unicode string to the default console.\r | |
140 | \r | |
141 | @param Fmt Format string\r | |
142 | @param ... Variable argument list for format string.\r | |
143 | \r | |
144 | @return Length of string printed to the console.\r | |
145 | \r | |
146 | **/\r | |
147 | UINTN\r | |
148 | EFIAPI\r | |
149 | ConsolePrint (\r | |
150 | IN CHAR16 *Fmt,\r | |
151 | ...\r | |
152 | )\r | |
153 | {\r | |
154 | VA_LIST Args;\r | |
155 | UINTN LengthOfPrinted;\r | |
156 | \r | |
157 | VA_START (Args, Fmt);\r | |
158 | LengthOfPrinted = PrintInternal ((UINTN) -1, (UINTN) -1, gST->ConOut, Fmt, Args);\r | |
159 | VA_END (Args);\r | |
160 | return LengthOfPrinted;\r | |
161 | }\r | |
162 | \r | |
163 | \r | |
164 | /**\r | |
165 | Prints a unicode string to the default console,\r | |
166 | using L"%s" format.\r | |
167 | \r | |
168 | @param String String pointer.\r | |
169 | \r | |
170 | @return Length of string printed to the console\r | |
171 | \r | |
172 | **/\r | |
173 | UINTN\r | |
174 | PrintString (\r | |
175 | IN CHAR16 *String\r | |
176 | )\r | |
177 | {\r | |
178 | return ConsolePrint (L"%s", String);\r | |
179 | }\r | |
180 | \r | |
181 | \r | |
182 | /**\r | |
183 | Prints a chracter to the default console,\r | |
184 | using L"%c" format.\r | |
185 | \r | |
186 | @param Character Character to print.\r | |
187 | \r | |
188 | @return Length of string printed to the console.\r | |
189 | \r | |
190 | **/\r | |
191 | UINTN\r | |
192 | PrintChar (\r | |
193 | CHAR16 Character\r | |
194 | )\r | |
195 | {\r | |
196 | return ConsolePrint (L"%c", Character);\r | |
197 | }\r | |
198 | \r | |
199 | \r | |
200 | /**\r | |
201 | Prints a formatted unicode string to the default console, at\r | |
202 | the supplied cursor position.\r | |
203 | \r | |
204 | @param Column The cursor position to print the string at.\r | |
205 | @param Row The cursor position to print the string at.\r | |
206 | @param Fmt Format string.\r | |
207 | @param ... Variable argument list for format string.\r | |
208 | \r | |
209 | @return Length of string printed to the console\r | |
210 | \r | |
211 | **/\r | |
212 | UINTN\r | |
213 | EFIAPI\r | |
214 | PrintAt (\r | |
215 | IN UINTN Column,\r | |
216 | IN UINTN Row,\r | |
217 | IN CHAR16 *Fmt,\r | |
218 | ...\r | |
219 | )\r | |
220 | {\r | |
221 | VA_LIST Args;\r | |
222 | UINTN LengthOfPrinted;\r | |
223 | \r | |
224 | VA_START (Args, Fmt);\r | |
225 | LengthOfPrinted = PrintInternal (Column, Row, gST->ConOut, Fmt, Args);\r | |
226 | VA_END (Args);\r | |
227 | return LengthOfPrinted;\r | |
228 | }\r | |
229 | \r | |
230 | \r | |
231 | /**\r | |
232 | Prints a unicode string to the default console, at\r | |
233 | the supplied cursor position, using L"%s" format.\r | |
234 | \r | |
235 | @param Column The cursor position to print the string at.\r | |
236 | @param Row The cursor position to print the string at\r | |
237 | @param String String pointer.\r | |
238 | \r | |
239 | @return Length of string printed to the console\r | |
240 | \r | |
241 | **/\r | |
242 | UINTN\r | |
243 | PrintStringAt (\r | |
244 | IN UINTN Column,\r | |
245 | IN UINTN Row,\r | |
246 | IN CHAR16 *String\r | |
247 | )\r | |
248 | {\r | |
249 | return PrintAt (Column, Row, L"%s", String);\r | |
250 | }\r | |
251 | \r | |
252 | \r | |
253 | /**\r | |
254 | Prints a chracter to the default console, at\r | |
255 | the supplied cursor position, using L"%c" format.\r | |
256 | \r | |
257 | @param Column The cursor position to print the string at.\r | |
258 | @param Row The cursor position to print the string at.\r | |
259 | @param Character Character to print.\r | |
260 | \r | |
261 | @return Length of string printed to the console.\r | |
262 | \r | |
263 | **/\r | |
264 | UINTN\r | |
265 | PrintCharAt (\r | |
266 | IN UINTN Column,\r | |
267 | IN UINTN Row,\r | |
268 | CHAR16 Character\r | |
269 | )\r | |
270 | {\r | |
271 | return PrintAt (Column, Row, L"%c", Character);\r | |
272 | }\r |