1 /** @file
2 Implementation for EFI_HII_FONT_PROTOCOL.
3
4
5 Copyright (c) 2007 - 2016, Intel Corporation. All rights reserved.<BR>
6 This program and the accompanying materials
7 are licensed and made available under the terms and conditions of the BSD License
8 which accompanies this distribution. The full text of the license may be found at
9 http://opensource.org/licenses/bsd-license.php
10
11 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
12 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
13
14 **/
15
16
17 #include "HiiDatabase.h"
18
19 EFI_GRAPHICS_OUTPUT_BLT_PIXEL mHiiEfiColors[16] = {
20 //
21 // B G R
22 //
23 {0x00, 0x00, 0x00, 0x00}, // BLACK
24 {0x98, 0x00, 0x00, 0x00}, // BLUE
25 {0x00, 0x98, 0x00, 0x00}, // GREEN
26 {0x98, 0x98, 0x00, 0x00}, // CYAN
27 {0x00, 0x00, 0x98, 0x00}, // RED
28 {0x98, 0x00, 0x98, 0x00}, // MAGENTA
29 {0x00, 0x98, 0x98, 0x00}, // BROWN
30 {0x98, 0x98, 0x98, 0x00}, // LIGHTGRAY
31 {0x30, 0x30, 0x30, 0x00}, // DARKGRAY - BRIGHT BLACK
32 {0xff, 0x00, 0x00, 0x00}, // LIGHTBLUE
33 {0x00, 0xff, 0x00, 0x00}, // LIGHTGREEN
34 {0xff, 0xff, 0x00, 0x00}, // LIGHTCYAN
35 {0x00, 0x00, 0xff, 0x00}, // LIGHTRED
36 {0xff, 0x00, 0xff, 0x00}, // LIGHTMAGENTA
37 {0x00, 0xff, 0xff, 0x00}, // YELLOW
38 {0xff, 0xff, 0xff, 0x00}, // WHITE
39 };
40
41
42 /**
43 Insert a character cell information to the list specified by GlyphInfoList.
44
45 This is a internal function.
46
47 @param CharValue Unicode character value, which identifies a glyph
48 block.
49 @param GlyphInfoList HII_GLYPH_INFO list head.
50 @param Cell Incoming character cell information.
51
52 @retval EFI_SUCCESS Cell information is added to the GlyphInfoList.
53 @retval EFI_OUT_OF_RESOURCES The system is out of resources to accomplish the
54 task.
55
56 **/
57 EFI_STATUS
NewCell(IN CHAR16 CharValue,IN LIST_ENTRY * GlyphInfoList,IN EFI_HII_GLYPH_INFO * Cell)58 NewCell (
59 IN CHAR16 CharValue,
60 IN LIST_ENTRY *GlyphInfoList,
61 IN EFI_HII_GLYPH_INFO *Cell
62 )
63 {
64 HII_GLYPH_INFO *GlyphInfo;
65
66 ASSERT (Cell != NULL && GlyphInfoList != NULL);
67
68 GlyphInfo = (HII_GLYPH_INFO *) AllocateZeroPool (sizeof (HII_GLYPH_INFO));
69 if (GlyphInfo == NULL) {
70 return EFI_OUT_OF_RESOURCES;
71 }
72
73 //
74 // GlyphInfoList stores a list of default character cell information, each is
75 // identified by "CharId".
76 //
77 GlyphInfo->Signature = HII_GLYPH_INFO_SIGNATURE;
78 GlyphInfo->CharId = CharValue;
79 if (Cell->AdvanceX == 0) {
80 Cell->AdvanceX = Cell->Width;
81 }
82 CopyMem (&GlyphInfo->Cell, Cell, sizeof (EFI_HII_GLYPH_INFO));
83 InsertTailList (GlyphInfoList, &GlyphInfo->Entry);
84
85 return EFI_SUCCESS;
86 }
87
88
89 /**
90 Get a character cell information from the list specified by GlyphInfoList.
91
92 This is a internal function.
93
94 @param CharValue Unicode character value, which identifies a glyph
95 block.
96 @param GlyphInfoList HII_GLYPH_INFO list head.
97 @param Cell Buffer which stores output character cell
98 information.
99
100 @retval EFI_SUCCESS Cell information is added to the GlyphInfoList.
101 @retval EFI_NOT_FOUND The character info specified by CharValue does
102 not exist.
103
104 **/
105 EFI_STATUS
GetCell(IN CHAR16 CharValue,IN LIST_ENTRY * GlyphInfoList,OUT EFI_HII_GLYPH_INFO * Cell)106 GetCell (
107 IN CHAR16 CharValue,
108 IN LIST_ENTRY *GlyphInfoList,
109 OUT EFI_HII_GLYPH_INFO *Cell
110 )
111 {
112 HII_GLYPH_INFO *GlyphInfo;
113 LIST_ENTRY *Link;
114
115 ASSERT (Cell != NULL && GlyphInfoList != NULL);
116
117 //
118 // Since the EFI_HII_GIBT_DEFAULTS block won't increment CharValueCurrent,
119 // the value of "CharId" of a default character cell which is used for a
120 // EFI_HII_GIBT_GLYPH_DEFAULT or EFI_HII_GIBT_GLYPHS_DEFAULT should be
121 // less or equal to the value of "CharValueCurrent" of this default block.
122 //
123 // For instance, if the CharId of a GlyphInfoList is {1, 3, 7}, a default glyph
124 // with CharValue equals "7" uses the GlyphInfo with CharId = 7;
125 // a default glyph with CharValue equals "6" uses the GlyphInfo with CharId = 3.
126 //
127 for (Link = GlyphInfoList->BackLink; Link != GlyphInfoList; Link = Link->BackLink) {
128 GlyphInfo = CR (Link, HII_GLYPH_INFO, Entry, HII_GLYPH_INFO_SIGNATURE);
129 if (GlyphInfo->CharId <= CharValue) {
130 CopyMem (Cell, &GlyphInfo->Cell, sizeof (EFI_HII_GLYPH_INFO));
131 return EFI_SUCCESS;
132 }
133 }
134
135 return EFI_NOT_FOUND;
136 }
137
138
139 /**
140 Convert the glyph for a single character into a bitmap.
141
142 This is a internal function.
143
144 @param Private HII database driver private data.
145 @param Char Character to retrieve.
146 @param StringInfo Points to the string font and color information
147 or NULL if the string should use the default
148 system font and color.
149 @param GlyphBuffer Buffer to store the retrieved bitmap data.
150 @param Cell Points to EFI_HII_GLYPH_INFO structure.
151 @param Attributes If not NULL, output the glyph attributes if any.
152
153 @retval EFI_SUCCESS Glyph bitmap outputted.
154 @retval EFI_OUT_OF_RESOURCES Unable to allocate the output buffer GlyphBuffer.
155 @retval EFI_NOT_FOUND The glyph was unknown can not be found.
156 @retval EFI_INVALID_PARAMETER Any input parameter is invalid.
157
158 **/
159 EFI_STATUS
GetGlyphBuffer(IN HII_DATABASE_PRIVATE_DATA * Private,IN CHAR16 Char,IN EFI_FONT_INFO * StringInfo,OUT UINT8 ** GlyphBuffer,OUT EFI_HII_GLYPH_INFO * Cell,OUT UINT8 * Attributes OPTIONAL)160 GetGlyphBuffer (
161 IN HII_DATABASE_PRIVATE_DATA *Private,
162 IN CHAR16 Char,
163 IN EFI_FONT_INFO *StringInfo,
164 OUT UINT8 **GlyphBuffer,
165 OUT EFI_HII_GLYPH_INFO *Cell,
166 OUT UINT8 *Attributes OPTIONAL
167 )
168 {
169 HII_DATABASE_RECORD *Node;
170 LIST_ENTRY *Link;
171 HII_SIMPLE_FONT_PACKAGE_INSTANCE *SimpleFont;
172 LIST_ENTRY *Link1;
173 UINT16 Index;
174 EFI_NARROW_GLYPH Narrow;
175 EFI_WIDE_GLYPH Wide;
176 HII_GLOBAL_FONT_INFO *GlobalFont;
177 UINTN HeaderSize;
178 EFI_NARROW_GLYPH *NarrowPtr;
179 EFI_WIDE_GLYPH *WidePtr;
180
181 if (GlyphBuffer == NULL || Cell == NULL) {
182 return EFI_INVALID_PARAMETER;
183 }
184 if (Private == NULL || Private->Signature != HII_DATABASE_PRIVATE_DATA_SIGNATURE) {
185 return EFI_INVALID_PARAMETER;
186 }
187
188 ZeroMem (Cell, sizeof (EFI_HII_GLYPH_INFO));
189
190 //
191 // If StringInfo is not NULL, it must point to an existing EFI_FONT_INFO rather
192 // than system default font and color.
193 // If NULL, try to find the character in simplified font packages since
194 // default system font is the fixed font (narrow or wide glyph).
195 //
196 if (StringInfo != NULL) {
197 if(!IsFontInfoExisted (Private, StringInfo, NULL, NULL, &GlobalFont)) {
198 return EFI_INVALID_PARAMETER;
199 }
200 if (Attributes != NULL) {
201 *Attributes = PROPORTIONAL_GLYPH;
202 }
203 return FindGlyphBlock (GlobalFont->FontPackage, Char, GlyphBuffer, Cell, NULL);
204 } else {
205 HeaderSize = sizeof (EFI_HII_SIMPLE_FONT_PACKAGE_HDR);
206
207 for (Link = Private->DatabaseList.ForwardLink; Link != &Private->DatabaseList; Link = Link->ForwardLink) {
208 Node = CR (Link, HII_DATABASE_RECORD, DatabaseEntry, HII_DATABASE_RECORD_SIGNATURE);
209 for (Link1 = Node->PackageList->SimpleFontPkgHdr.ForwardLink;
210 Link1 != &Node->PackageList->SimpleFontPkgHdr;
211 Link1 = Link1->ForwardLink
212 ) {
213 SimpleFont = CR (Link1, HII_SIMPLE_FONT_PACKAGE_INSTANCE, SimpleFontEntry, HII_S_FONT_PACKAGE_SIGNATURE);
214 //
215 // Search the narrow glyph array
216 //
217 NarrowPtr = (EFI_NARROW_GLYPH *) ((UINT8 *) (SimpleFont->SimpleFontPkgHdr) + HeaderSize);
218 for (Index = 0; Index < SimpleFont->SimpleFontPkgHdr->NumberOfNarrowGlyphs; Index++) {
219 CopyMem (&Narrow, NarrowPtr + Index,sizeof (EFI_NARROW_GLYPH));
220 if (Narrow.UnicodeWeight == Char) {
221 *GlyphBuffer = (UINT8 *) AllocateZeroPool (EFI_GLYPH_HEIGHT);
222 if (*GlyphBuffer == NULL) {
223 return EFI_OUT_OF_RESOURCES;
224 }
225 Cell->Width = EFI_GLYPH_WIDTH;
226 Cell->Height = EFI_GLYPH_HEIGHT;
227 Cell->AdvanceX = Cell->Width;
228 CopyMem (*GlyphBuffer, Narrow.GlyphCol1, Cell->Height);
229 if (Attributes != NULL) {
230 *Attributes = (UINT8) (Narrow.Attributes | NARROW_GLYPH);
231 }
232 return EFI_SUCCESS;
233 }
234 }
235 //
236 // Search the wide glyph array
237 //
238 WidePtr = (EFI_WIDE_GLYPH *) (NarrowPtr + SimpleFont->SimpleFontPkgHdr->NumberOfNarrowGlyphs);
239 for (Index = 0; Index < SimpleFont->SimpleFontPkgHdr->NumberOfWideGlyphs; Index++) {
240 CopyMem (&Wide, WidePtr + Index, sizeof (EFI_WIDE_GLYPH));
241 if (Wide.UnicodeWeight == Char) {
242 *GlyphBuffer = (UINT8 *) AllocateZeroPool (EFI_GLYPH_HEIGHT * 2);
243 if (*GlyphBuffer == NULL) {
244 return EFI_OUT_OF_RESOURCES;
245 }
246 Cell->Width = EFI_GLYPH_WIDTH * 2;
247 Cell->Height = EFI_GLYPH_HEIGHT;
248 Cell->AdvanceX = Cell->Width;
249 CopyMem (*GlyphBuffer, Wide.GlyphCol1, EFI_GLYPH_HEIGHT);
250 CopyMem (*GlyphBuffer + EFI_GLYPH_HEIGHT, Wide.GlyphCol2, EFI_GLYPH_HEIGHT);
251 if (Attributes != NULL) {
252 *Attributes = (UINT8) (Wide.Attributes | EFI_GLYPH_WIDE);
253 }
254 return EFI_SUCCESS;
255 }
256 }
257 }
258 }
259 }
260
261 return EFI_NOT_FOUND;
262 }
263
264 /**
265 Convert bitmap data of the glyph to blt structure.
266
267 This is a internal function.
268
269 @param GlyphBuffer Buffer points to bitmap data of glyph.
270 @param Foreground The color of the "on" pixels in the glyph in the
271 bitmap.
272 @param Background The color of the "off" pixels in the glyph in the
273 bitmap.
274 @param ImageWidth Width of the whole image in pixels.
275 @param RowWidth The width of the text on the line, in pixels.
276 @param RowHeight The height of the line, in pixels.
277 @param Transparent If TRUE, the Background color is ignored and all
278 "off" pixels in the character's drawn will use the
279 pixel value from BltBuffer.
280 @param Origin On input, points to the origin of the to be
281 displayed character, on output, points to the
282 next glyph's origin.
283
284 **/
285 VOID
NarrowGlyphToBlt(IN UINT8 * GlyphBuffer,IN EFI_GRAPHICS_OUTPUT_BLT_PIXEL Foreground,IN EFI_GRAPHICS_OUTPUT_BLT_PIXEL Background,IN UINT16 ImageWidth,IN UINTN RowWidth,IN UINTN RowHeight,IN BOOLEAN Transparent,IN OUT EFI_GRAPHICS_OUTPUT_BLT_PIXEL ** Origin)286 NarrowGlyphToBlt (
287 IN UINT8 *GlyphBuffer,
288 IN EFI_GRAPHICS_OUTPUT_BLT_PIXEL Foreground,
289 IN EFI_GRAPHICS_OUTPUT_BLT_PIXEL Background,
290 IN UINT16 ImageWidth,
291 IN UINTN RowWidth,
292 IN UINTN RowHeight,
293 IN BOOLEAN Transparent,
294 IN OUT EFI_GRAPHICS_OUTPUT_BLT_PIXEL **Origin
295 )
296 {
297 UINT8 Xpos;
298 UINT8 Ypos;
299 UINT8 Height;
300 UINT8 Width;
301 EFI_GRAPHICS_OUTPUT_BLT_PIXEL *Buffer;
302
303 ASSERT (GlyphBuffer != NULL && Origin != NULL && *Origin != NULL);
304
305 Height = EFI_GLYPH_HEIGHT;
306 Width = EFI_GLYPH_WIDTH;
307
308 //
309 // Move position to the left-top corner of char.
310 //
311 Buffer = *Origin - EFI_GLYPH_HEIGHT * ImageWidth;
312
313 //
314 // Char may be partially displayed when CLIP_X or CLIP_Y is not set.
315 //
316 if (RowHeight < Height) {
317 Height = (UINT8) RowHeight;
318 }
319 if (RowWidth < Width) {
320 Width = (UINT8) RowWidth;
321 }
322
323 for (Ypos = 0; Ypos < Height; Ypos++) {
324 for (Xpos = 0; Xpos < Width; Xpos++) {
325 if ((GlyphBuffer[Ypos] & (1 << (EFI_GLYPH_WIDTH - Xpos - 1))) != 0) {
326 Buffer[Ypos * ImageWidth + Xpos] = Foreground;
327 } else {
328 if (!Transparent) {
329 Buffer[Ypos * ImageWidth + Xpos] = Background;
330 }
331 }
332 }
333 }
334
335 *Origin = *Origin + EFI_GLYPH_WIDTH;
336 }
337
338
339 /**
340 Convert bitmap data of the glyph to blt structure.
341
342 This is a internal function.
343
344 @param GlyphBuffer Buffer points to bitmap data of glyph.
345 @param Foreground The color of the "on" pixels in the glyph in the
346 bitmap.
347 @param Background The color of the "off" pixels in the glyph in the
348 bitmap.
349 @param ImageWidth Width of the whole image in pixels.
350 @param BaseLine BaseLine in the line.
351 @param RowWidth The width of the text on the line, in pixels.
352 @param RowHeight The height of the line, in pixels.
353 @param Transparent If TRUE, the Background color is ignored and all
354 "off" pixels in the character's drawn will use the
355 pixel value from BltBuffer.
356 @param Cell Points to EFI_HII_GLYPH_INFO structure.
357 @param Attributes The attribute of incoming glyph in GlyphBuffer.
358 @param Origin On input, points to the origin of the to be
359 displayed character, on output, points to the
360 next glyph's origin.
361
362
363 **/
364 VOID
GlyphToBlt(IN UINT8 * GlyphBuffer,IN EFI_GRAPHICS_OUTPUT_BLT_PIXEL Foreground,IN EFI_GRAPHICS_OUTPUT_BLT_PIXEL Background,IN UINT16 ImageWidth,IN UINT16 BaseLine,IN UINTN RowWidth,IN UINTN RowHeight,IN BOOLEAN Transparent,IN CONST EFI_HII_GLYPH_INFO * Cell,IN UINT8 Attributes,IN OUT EFI_GRAPHICS_OUTPUT_BLT_PIXEL ** Origin)365 GlyphToBlt (
366 IN UINT8 *GlyphBuffer,
367 IN EFI_GRAPHICS_OUTPUT_BLT_PIXEL Foreground,
368 IN EFI_GRAPHICS_OUTPUT_BLT_PIXEL Background,
369 IN UINT16 ImageWidth,
370 IN UINT16 BaseLine,
371 IN UINTN RowWidth,
372 IN UINTN RowHeight,
373 IN BOOLEAN Transparent,
374 IN CONST EFI_HII_GLYPH_INFO *Cell,
375 IN UINT8 Attributes,
376 IN OUT EFI_GRAPHICS_OUTPUT_BLT_PIXEL **Origin
377 )
378 {
379 UINT16 Xpos;
380 UINT16 Ypos;
381 UINT8 Data;
382 UINT16 Index;
383 UINT16 YposOffset;
384 UINTN OffsetY;
385 EFI_GRAPHICS_OUTPUT_BLT_PIXEL *BltBuffer;
386
387 ASSERT (Origin != NULL && *Origin != NULL && Cell != NULL);
388
389 //
390 // Only adjust origin position if char has no bitmap.
391 //
392 if (GlyphBuffer == NULL) {
393 *Origin = *Origin + Cell->AdvanceX;
394 return;
395 }
396 //
397 // Move position to the left-top corner of char.
398 //
399 BltBuffer = *Origin + Cell->OffsetX - (Cell->OffsetY + Cell->Height) * ImageWidth;
400 YposOffset = (UINT16) (BaseLine - (Cell->OffsetY + Cell->Height));
401
402 //
403 // Since non-spacing key will be printed OR'd with the previous glyph, don't
404 // write 0.
405 //
406 if ((Attributes & EFI_GLYPH_NON_SPACING) == EFI_GLYPH_NON_SPACING) {
407 Transparent = TRUE;
408 }
409
410 //
411 // The glyph's upper left hand corner pixel is the most significant bit of the
412 // first bitmap byte.
413 //
414 for (Ypos = 0; Ypos < Cell->Height && ((UINTN) (Ypos + YposOffset) < RowHeight); Ypos++) {
415 OffsetY = BITMAP_LEN_1_BIT (Cell->Width, Ypos);
416
417 //
418 // All bits in these bytes are meaningful.
419 //
420 for (Xpos = 0; Xpos < Cell->Width / 8; Xpos++) {
421 Data = *(GlyphBuffer + OffsetY + Xpos);
422 for (Index = 0; Index < 8 && ((UINTN) (Xpos * 8 + Index + Cell->OffsetX) < RowWidth); Index++) {
423 if ((Data & (1 << (8 - Index - 1))) != 0) {
424 BltBuffer[Ypos * ImageWidth + Xpos * 8 + Index] = Foreground;
425 } else {
426 if (!Transparent) {
427 BltBuffer[Ypos * ImageWidth + Xpos * 8 + Index] = Background;
428 }
429 }
430 }
431 }
432
433 if (Cell->Width % 8 != 0) {
434 //
435 // There are some padding bits in this byte. Ignore them.
436 //
437 Data = *(GlyphBuffer + OffsetY + Xpos);
438 for (Index = 0; Index < Cell->Width % 8 && ((UINTN) (Xpos * 8 + Index + Cell->OffsetX) < RowWidth); Index++) {
439 if ((Data & (1 << (8 - Index - 1))) != 0) {
440 BltBuffer[Ypos * ImageWidth + Xpos * 8 + Index] = Foreground;
441 } else {
442 if (!Transparent) {
443 BltBuffer[Ypos * ImageWidth + Xpos * 8 + Index] = Background;
444 }
445 }
446 }
447 } // end of if (Width % 8...)
448
449 } // end of for (Ypos=0...)
450
451 *Origin = *Origin + Cell->AdvanceX;
452 }
453
454
455 /**
456 Convert bitmap data of the glyph to blt structure.
457
458 This is a internal function.
459
460 @param GlyphBuffer Buffer points to bitmap data of glyph.
461 @param Foreground The color of the "on" pixels in the glyph in the
462 bitmap.
463 @param Background The color of the "off" pixels in the glyph in the
464 bitmap.
465 @param ImageWidth Width of the whole image in pixels.
466 @param BaseLine BaseLine in the line.
467 @param RowWidth The width of the text on the line, in pixels.
468 @param RowHeight The height of the line, in pixels.
469 @param Transparent If TRUE, the Background color is ignored and all
470 "off" pixels in the character's drawn will use the
471 pixel value from BltBuffer.
472 @param Cell Points to EFI_HII_GLYPH_INFO structure.
473 @param Attributes The attribute of incoming glyph in GlyphBuffer.
474 @param Origin On input, points to the origin of the to be
475 displayed character, on output, points to the
476 next glyph's origin.
477
478 @return Points to the address of next origin node in BltBuffer.
479
480 **/
481 VOID
GlyphToImage(IN UINT8 * GlyphBuffer,IN EFI_GRAPHICS_OUTPUT_BLT_PIXEL Foreground,IN EFI_GRAPHICS_OUTPUT_BLT_PIXEL Background,IN UINT16 ImageWidth,IN UINT16 BaseLine,IN UINTN RowWidth,IN UINTN RowHeight,IN BOOLEAN Transparent,IN CONST EFI_HII_GLYPH_INFO * Cell,IN UINT8 Attributes,IN OUT EFI_GRAPHICS_OUTPUT_BLT_PIXEL ** Origin)482 GlyphToImage (
483 IN UINT8 *GlyphBuffer,
484 IN EFI_GRAPHICS_OUTPUT_BLT_PIXEL Foreground,
485 IN EFI_GRAPHICS_OUTPUT_BLT_PIXEL Background,
486 IN UINT16 ImageWidth,
487 IN UINT16 BaseLine,
488 IN UINTN RowWidth,
489 IN UINTN RowHeight,
490 IN BOOLEAN Transparent,
491 IN CONST EFI_HII_GLYPH_INFO *Cell,
492 IN UINT8 Attributes,
493 IN OUT EFI_GRAPHICS_OUTPUT_BLT_PIXEL **Origin
494 )
495 {
496 EFI_GRAPHICS_OUTPUT_BLT_PIXEL *Buffer;
497
498 ASSERT (Origin != NULL && *Origin != NULL && Cell != NULL);
499
500 Buffer = *Origin;
501
502 if ((Attributes & EFI_GLYPH_NON_SPACING) == EFI_GLYPH_NON_SPACING) {
503 //
504 // This character is a non-spacing key, print it OR'd with the previous glyph.
505 // without advancing cursor.
506 //
507 Buffer -= Cell->AdvanceX;
508 GlyphToBlt (
509 GlyphBuffer,
510 Foreground,
511 Background,
512 ImageWidth,
513 BaseLine,
514 RowWidth,
515 RowHeight,
516 Transparent,
517 Cell,
518 Attributes,
519 &Buffer
520 );
521
522 } else if ((Attributes & EFI_GLYPH_WIDE) == EFI_GLYPH_WIDE) {
523 //
524 // This character is wide glyph, i.e. 16 pixels * 19 pixels.
525 // Draw it as two narrow glyphs.
526 //
527 NarrowGlyphToBlt (
528 GlyphBuffer,
529 Foreground,
530 Background,
531 ImageWidth,
532 RowWidth,
533 RowHeight,
534 Transparent,
535 Origin
536 );
537
538 NarrowGlyphToBlt (
539 GlyphBuffer + EFI_GLYPH_HEIGHT,
540 Foreground,
541 Background,
542 ImageWidth,
543 RowWidth,
544 RowHeight,
545 Transparent,
546 Origin
547 );
548
549 } else if ((Attributes & NARROW_GLYPH) == NARROW_GLYPH) {
550 //
551 // This character is narrow glyph, i.e. 8 pixels * 19 pixels.
552 //
553 NarrowGlyphToBlt (
554 GlyphBuffer,
555 Foreground,
556 Background,
557 ImageWidth,
558 RowWidth,
559 RowHeight,
560 Transparent,
561 Origin
562 );
563
564 } else if ((Attributes & PROPORTIONAL_GLYPH) == PROPORTIONAL_GLYPH) {
565 //
566 // This character is proportional glyph, i.e. Cell->Width * Cell->Height pixels.
567 //
568 GlyphToBlt (
569 GlyphBuffer,
570 Foreground,
571 Background,
572 ImageWidth,
573 BaseLine,
574 RowWidth,
575 RowHeight,
576 Transparent,
577 Cell,
578 Attributes,
579 Origin
580 );
581 }
582 }
583
584
585 /**
586 Write the output parameters of FindGlyphBlock().
587
588 This is a internal function.
589
590 @param BufferIn Buffer which stores the bitmap data of the found
591 block.
592 @param BufferLen Length of BufferIn.
593 @param InputCell Buffer which stores cell information of the
594 encoded bitmap.
595 @param GlyphBuffer Output the corresponding bitmap data of the found
596 block. It is the caller's responsibility to free
597 this buffer.
598 @param Cell Output cell information of the encoded bitmap.
599 @param GlyphBufferLen If not NULL, output the length of GlyphBuffer.
600
601 @retval EFI_SUCCESS The operation is performed successfully.
602 @retval EFI_INVALID_PARAMETER Any input parameter is invalid.
603 @retval EFI_OUT_OF_RESOURCES The system is out of resources to accomplish the
604 task.
605
606 **/
607 EFI_STATUS
WriteOutputParam(IN UINT8 * BufferIn,IN UINTN BufferLen,IN EFI_HII_GLYPH_INFO * InputCell,OUT UINT8 ** GlyphBuffer,OPTIONAL OUT EFI_HII_GLYPH_INFO * Cell,OPTIONAL OUT UINTN * GlyphBufferLen OPTIONAL)608 WriteOutputParam (
609 IN UINT8 *BufferIn,
610 IN UINTN BufferLen,
611 IN EFI_HII_GLYPH_INFO *InputCell,
612 OUT UINT8 **GlyphBuffer, OPTIONAL
613 OUT EFI_HII_GLYPH_INFO *Cell, OPTIONAL
614 OUT UINTN *GlyphBufferLen OPTIONAL
615 )
616 {
617 if (BufferIn == NULL || InputCell == NULL) {
618 return EFI_INVALID_PARAMETER;
619 }
620
621 if (Cell != NULL) {
622 CopyMem (Cell, InputCell, sizeof (EFI_HII_GLYPH_INFO));
623 }
624
625 if (GlyphBuffer != NULL && BufferLen > 0) {
626 *GlyphBuffer = (UINT8 *) AllocateZeroPool (BufferLen);
627 if (*GlyphBuffer == NULL) {
628 return EFI_OUT_OF_RESOURCES;
629 }
630 CopyMem (*GlyphBuffer, BufferIn, BufferLen);
631 }
632
633 if (GlyphBufferLen != NULL) {
634 *GlyphBufferLen = BufferLen;
635 }
636
637 return EFI_SUCCESS;
638 }
639
640
641 /**
642 Parse all glyph blocks to find a glyph block specified by CharValue.
643 If CharValue = (CHAR16) (-1), collect all default character cell information
644 within this font package and backup its information.
645
646 @param FontPackage Hii string package instance.
647 @param CharValue Unicode character value, which identifies a glyph
648 block.
649 @param GlyphBuffer Output the corresponding bitmap data of the found
650 block. It is the caller's responsibility to free
651 this buffer.
652 @param Cell Output cell information of the encoded bitmap.
653 @param GlyphBufferLen If not NULL, output the length of GlyphBuffer.
654
655 @retval EFI_SUCCESS The bitmap data is retrieved successfully.
656 @retval EFI_NOT_FOUND The specified CharValue does not exist in current
657 database.
658 @retval EFI_OUT_OF_RESOURCES The system is out of resources to accomplish the
659 task.
660
661 **/
662 EFI_STATUS
FindGlyphBlock(IN HII_FONT_PACKAGE_INSTANCE * FontPackage,IN CHAR16 CharValue,OUT UINT8 ** GlyphBuffer,OPTIONAL OUT EFI_HII_GLYPH_INFO * Cell,OPTIONAL OUT UINTN * GlyphBufferLen OPTIONAL)663 FindGlyphBlock (
664 IN HII_FONT_PACKAGE_INSTANCE *FontPackage,
665 IN CHAR16 CharValue,
666 OUT UINT8 **GlyphBuffer, OPTIONAL
667 OUT EFI_HII_GLYPH_INFO *Cell, OPTIONAL
668 OUT UINTN *GlyphBufferLen OPTIONAL
669 )
670 {
671 EFI_STATUS Status;
672 UINT8 *BlockPtr;
673 UINT16 CharCurrent;
674 UINT16 Length16;
675 UINT32 Length32;
676 EFI_HII_GIBT_GLYPHS_BLOCK Glyphs;
677 UINTN BufferLen;
678 UINT16 Index;
679 EFI_HII_GLYPH_INFO DefaultCell;
680 EFI_HII_GLYPH_INFO LocalCell;
681 INT16 MinOffsetY;
682 UINT16 BaseLine;
683
684 ASSERT (FontPackage != NULL);
685 ASSERT (FontPackage->Signature == HII_FONT_PACKAGE_SIGNATURE);
686 BaseLine = 0;
687 MinOffsetY = 0;
688
689 if (CharValue == (CHAR16) (-1)) {
690 //
691 // Collect the cell information specified in font package fixed header.
692 // Use CharValue =0 to represent this particular cell.
693 //
694 Status = NewCell (
695 0,
696 &FontPackage->GlyphInfoList,
697 (EFI_HII_GLYPH_INFO *) ((UINT8 *) FontPackage->FontPkgHdr + 3 * sizeof (UINT32))
698 );
699 if (EFI_ERROR (Status)) {
700 return Status;
701 }
702 CopyMem (
703 &LocalCell,
704 (UINT8 *) FontPackage->FontPkgHdr + 3 * sizeof (UINT32),
705 sizeof (EFI_HII_GLYPH_INFO)
706 );
707 }
708
709 BlockPtr = FontPackage->GlyphBlock;
710 CharCurrent = 1;
711 BufferLen = 0;
712
713 while (*BlockPtr != EFI_HII_GIBT_END) {
714 switch (*BlockPtr) {
715 case EFI_HII_GIBT_DEFAULTS:
716 //
717 // Collect all default character cell information specified by
718 // EFI_HII_GIBT_DEFAULTS.
719 //
720 if (CharValue == (CHAR16) (-1)) {
721 Status = NewCell (
722 CharCurrent,
723 &FontPackage->GlyphInfoList,
724 (EFI_HII_GLYPH_INFO *) (BlockPtr + sizeof (EFI_HII_GLYPH_BLOCK))
725 );
726 if (EFI_ERROR (Status)) {
727 return Status;
728 }
729 CopyMem (
730 &LocalCell,
731 BlockPtr + sizeof (EFI_HII_GLYPH_BLOCK),
732 sizeof (EFI_HII_GLYPH_INFO)
733 );
734 if (BaseLine < LocalCell.Height + LocalCell.OffsetY) {
735 BaseLine = (UINT16) (LocalCell.Height + LocalCell.OffsetY);
736 }
737 if (MinOffsetY > LocalCell.OffsetY) {
738 MinOffsetY = LocalCell.OffsetY;
739 }
740 }
741 BlockPtr += sizeof (EFI_HII_GIBT_DEFAULTS_BLOCK);
742 break;
743
744 case EFI_HII_GIBT_DUPLICATE:
745 if (CharCurrent == CharValue) {
746 CopyMem (&CharValue, BlockPtr + sizeof (EFI_HII_GLYPH_BLOCK), sizeof (CHAR16));
747 CharCurrent = 1;
748 BlockPtr = FontPackage->GlyphBlock;
749 continue;
750 }
751 CharCurrent++;
752 BlockPtr += sizeof (EFI_HII_GIBT_DUPLICATE_BLOCK);
753 break;
754
755 case EFI_HII_GIBT_EXT1:
756 BlockPtr += *(UINT8*)((UINTN)BlockPtr + sizeof (EFI_HII_GLYPH_BLOCK) + sizeof (UINT8));
757 break;
758 case EFI_HII_GIBT_EXT2:
759 CopyMem (
760 &Length16,
761 (UINT8*)((UINTN)BlockPtr + sizeof (EFI_HII_GLYPH_BLOCK) + sizeof (UINT8)),
762 sizeof (UINT16)
763 );
764 BlockPtr += Length16;
765 break;
766 case EFI_HII_GIBT_EXT4:
767 CopyMem (
768 &Length32,
769 (UINT8*)((UINTN)BlockPtr + sizeof (EFI_HII_GLYPH_BLOCK) + sizeof (UINT8)),
770 sizeof (UINT32)
771 );
772 BlockPtr += Length32;
773 break;
774
775 case EFI_HII_GIBT_GLYPH:
776 CopyMem (
777 &LocalCell,
778 BlockPtr + sizeof (EFI_HII_GLYPH_BLOCK),
779 sizeof (EFI_HII_GLYPH_INFO)
780 );
781 if (CharValue == (CHAR16) (-1)) {
782 if (BaseLine < LocalCell.Height + LocalCell.OffsetY) {
783 BaseLine = (UINT16) (LocalCell.Height + LocalCell.OffsetY);
784 }
785 if (MinOffsetY > LocalCell.OffsetY) {
786 MinOffsetY = LocalCell.OffsetY;
787 }
788 }
789 BufferLen = BITMAP_LEN_1_BIT (LocalCell.Width, LocalCell.Height);
790 if (CharCurrent == CharValue) {
791 return WriteOutputParam (
792 (UINT8*)((UINTN)BlockPtr + sizeof (EFI_HII_GIBT_GLYPH_BLOCK) - sizeof (UINT8)),
793 BufferLen,
794 &LocalCell,
795 GlyphBuffer,
796 Cell,
797 GlyphBufferLen
798 );
799 }
800 CharCurrent++;
801 BlockPtr += sizeof (EFI_HII_GIBT_GLYPH_BLOCK) - sizeof (UINT8) + BufferLen;
802 break;
803
804 case EFI_HII_GIBT_GLYPHS:
805 BlockPtr += sizeof (EFI_HII_GLYPH_BLOCK);
806 CopyMem (&Glyphs.Cell, BlockPtr, sizeof (EFI_HII_GLYPH_INFO));
807 BlockPtr += sizeof (EFI_HII_GLYPH_INFO);
808 CopyMem (&Glyphs.Count, BlockPtr, sizeof (UINT16));
809 BlockPtr += sizeof (UINT16);
810
811 if (CharValue == (CHAR16) (-1)) {
812 if (BaseLine < Glyphs.Cell.Height + Glyphs.Cell.OffsetY) {
813 BaseLine = (UINT16) (Glyphs.Cell.Height + Glyphs.Cell.OffsetY);
814 }
815 if (MinOffsetY > Glyphs.Cell.OffsetY) {
816 MinOffsetY = Glyphs.Cell.OffsetY;
817 }
818 }
819
820 BufferLen = BITMAP_LEN_1_BIT (Glyphs.Cell.Width, Glyphs.Cell.Height);
821 for (Index = 0; Index < Glyphs.Count; Index++) {
822 if (CharCurrent + Index == CharValue) {
823 return WriteOutputParam (
824 BlockPtr,
825 BufferLen,
826 &Glyphs.Cell,
827 GlyphBuffer,
828 Cell,
829 GlyphBufferLen
830 );
831 }
832 BlockPtr += BufferLen;
833 }
834 CharCurrent = (UINT16) (CharCurrent + Glyphs.Count);
835 break;
836
837 case EFI_HII_GIBT_GLYPH_DEFAULT:
838 Status = GetCell (CharCurrent, &FontPackage->GlyphInfoList, &DefaultCell);
839 if (EFI_ERROR (Status)) {
840 return Status;
841 }
842 if (CharValue == (CHAR16) (-1)) {
843 if (BaseLine < DefaultCell.Height + DefaultCell.OffsetY) {
844 BaseLine = (UINT16) (DefaultCell.Height + DefaultCell.OffsetY);
845 }
846 if (MinOffsetY > DefaultCell.OffsetY) {
847 MinOffsetY = DefaultCell.OffsetY;
848 }
849 }
850 BufferLen = BITMAP_LEN_1_BIT (DefaultCell.Width, DefaultCell.Height);
851
852 if (CharCurrent == CharValue) {
853 return WriteOutputParam (
854 BlockPtr + sizeof (EFI_HII_GLYPH_BLOCK),
855 BufferLen,
856 &DefaultCell,
857 GlyphBuffer,
858 Cell,
859 GlyphBufferLen
860 );
861 }
862 CharCurrent++;
863 BlockPtr += sizeof (EFI_HII_GLYPH_BLOCK) + BufferLen;
864 break;
865
866 case EFI_HII_GIBT_GLYPHS_DEFAULT:
867 CopyMem (&Length16, BlockPtr + sizeof (EFI_HII_GLYPH_BLOCK), sizeof (UINT16));
868 Status = GetCell (CharCurrent, &FontPackage->GlyphInfoList, &DefaultCell);
869 if (EFI_ERROR (Status)) {
870 return Status;
871 }
872 if (CharValue == (CHAR16) (-1)) {
873 if (BaseLine < DefaultCell.Height + DefaultCell.OffsetY) {
874 BaseLine = (UINT16) (DefaultCell.Height + DefaultCell.OffsetY);
875 }
876 if (MinOffsetY > DefaultCell.OffsetY) {
877 MinOffsetY = DefaultCell.OffsetY;
878 }
879 }
880 BufferLen = BITMAP_LEN_1_BIT (DefaultCell.Width, DefaultCell.Height);
881 BlockPtr += sizeof (EFI_HII_GIBT_GLYPHS_DEFAULT_BLOCK) - sizeof (UINT8);
882 for (Index = 0; Index < Length16; Index++) {
883 if (CharCurrent + Index == CharValue) {
884 return WriteOutputParam (
885 BlockPtr,
886 BufferLen,
887 &DefaultCell,
888 GlyphBuffer,
889 Cell,
890 GlyphBufferLen
891 );
892 }
893 BlockPtr += BufferLen;
894 }
895 CharCurrent = (UINT16) (CharCurrent + Length16);
896 break;
897
898 case EFI_HII_GIBT_SKIP1:
899 CharCurrent = (UINT16) (CharCurrent + (UINT16) (*(BlockPtr + sizeof (EFI_HII_GLYPH_BLOCK))));
900 BlockPtr += sizeof (EFI_HII_GIBT_SKIP1_BLOCK);
901 break;
902 case EFI_HII_GIBT_SKIP2:
903 CopyMem (&Length16, BlockPtr + sizeof (EFI_HII_GLYPH_BLOCK), sizeof (UINT16));
904 CharCurrent = (UINT16) (CharCurrent + Length16);
905 BlockPtr += sizeof (EFI_HII_GIBT_SKIP2_BLOCK);
906 break;
907 default:
908 ASSERT (FALSE);
909 break;
910 }
911
912 if (CharValue < CharCurrent) {
913 return EFI_NOT_FOUND;
914 }
915 }
916
917 if (CharValue == (CHAR16) (-1)) {
918 FontPackage->BaseLine = BaseLine;
919 FontPackage->Height = (UINT16) (BaseLine - MinOffsetY);
920 return EFI_SUCCESS;
921 }
922
923 return EFI_NOT_FOUND;
924 }
925
926
927 /**
928 Copy a Font Name to a new created EFI_FONT_INFO structure.
929
930 This is a internal function.
931
932 @param FontName NULL-terminated string.
933 @param FontInfo a new EFI_FONT_INFO which stores the FontName.
934 It's caller's responsibility to free this buffer.
935
936 @retval EFI_SUCCESS FontInfo is allocated and copied with FontName.
937 @retval EFI_OUT_OF_RESOURCES The system is out of resources to accomplish the
938 task.
939
940 **/
941 EFI_STATUS
SaveFontName(IN EFI_STRING FontName,OUT EFI_FONT_INFO ** FontInfo)942 SaveFontName (
943 IN EFI_STRING FontName,
944 OUT EFI_FONT_INFO **FontInfo
945 )
946 {
947 UINTN FontInfoLen;
948 UINTN NameSize;
949
950 ASSERT (FontName != NULL && FontInfo != NULL);
951
952 NameSize = StrSize (FontName);
953 FontInfoLen = sizeof (EFI_FONT_INFO) - sizeof (CHAR16) + NameSize;
954 *FontInfo = (EFI_FONT_INFO *) AllocateZeroPool (FontInfoLen);
955 if (*FontInfo == NULL) {
956 return EFI_OUT_OF_RESOURCES;
957 }
958
959 StrCpyS ((*FontInfo)->FontName, NameSize / sizeof (CHAR16), FontName);
960 return EFI_SUCCESS;
961 }
962
963
964 /**
965 Retrieve system default font and color.
966
967 @param Private HII database driver private data.
968 @param FontInfo Points to system default font output-related
969 information. It's caller's responsibility to free
970 this buffer.
971 @param FontInfoSize If not NULL, output the size of buffer FontInfo.
972
973 @retval EFI_SUCCESS Cell information is added to the GlyphInfoList.
974 @retval EFI_OUT_OF_RESOURCES The system is out of resources to accomplish the
975 task.
976 @retval EFI_INVALID_PARAMETER Any input parameter is invalid.
977
978 **/
979 EFI_STATUS
GetSystemFont(IN HII_DATABASE_PRIVATE_DATA * Private,OUT EFI_FONT_DISPLAY_INFO ** FontInfo,OUT UINTN * FontInfoSize OPTIONAL)980 GetSystemFont (
981 IN HII_DATABASE_PRIVATE_DATA *Private,
982 OUT EFI_FONT_DISPLAY_INFO **FontInfo,
983 OUT UINTN *FontInfoSize OPTIONAL
984 )
985 {
986 EFI_FONT_DISPLAY_INFO *Info;
987 UINTN InfoSize;
988 UINTN NameSize;
989
990 if (Private == NULL || Private->Signature != HII_DATABASE_PRIVATE_DATA_SIGNATURE) {
991 return EFI_INVALID_PARAMETER;
992 }
993 if (FontInfo == NULL) {
994 return EFI_INVALID_PARAMETER;
995 }
996
997 //
998 // The standard font always has the name "sysdefault".
999 //
1000 NameSize = StrSize (L"sysdefault");
1001 InfoSize = sizeof (EFI_FONT_DISPLAY_INFO) - sizeof (CHAR16) + NameSize;
1002 Info = (EFI_FONT_DISPLAY_INFO *) AllocateZeroPool (InfoSize);
1003 if (Info == NULL) {
1004 return EFI_OUT_OF_RESOURCES;
1005 }
1006
1007 Info->ForegroundColor = mHiiEfiColors[Private->Attribute & 0x0f];
1008 Info->BackgroundColor = mHiiEfiColors[Private->Attribute >> 4];
1009 Info->FontInfoMask = EFI_FONT_INFO_SYS_FONT | EFI_FONT_INFO_SYS_SIZE | EFI_FONT_INFO_SYS_STYLE;
1010 Info->FontInfo.FontStyle = 0;
1011 Info->FontInfo.FontSize = EFI_GLYPH_HEIGHT;
1012 StrCpyS (Info->FontInfo.FontName, NameSize / sizeof (CHAR16), L"sysdefault");
1013
1014 *FontInfo = Info;
1015 if (FontInfoSize != NULL) {
1016 *FontInfoSize = InfoSize;
1017 }
1018 return EFI_SUCCESS;
1019 }
1020
1021
1022 /**
1023 Check whether EFI_FONT_DISPLAY_INFO points to system default font and color or
1024 returns the system default according to the optional inputs.
1025
1026 This is a internal function.
1027
1028 @param Private HII database driver private data.
1029 @param StringInfo Points to the string output information,
1030 including the color and font.
1031 @param SystemInfo If not NULL, points to system default font and color.
1032
1033 @param SystemInfoLen If not NULL, output the length of default system
1034 info.
1035
1036 @retval TRUE Yes, it points to system default.
1037 @retval FALSE No.
1038
1039 **/
1040 BOOLEAN
IsSystemFontInfo(IN HII_DATABASE_PRIVATE_DATA * Private,IN EFI_FONT_DISPLAY_INFO * StringInfo,OUT EFI_FONT_DISPLAY_INFO ** SystemInfo,OPTIONAL OUT UINTN * SystemInfoLen OPTIONAL)1041 IsSystemFontInfo (
1042 IN HII_DATABASE_PRIVATE_DATA *Private,
1043 IN EFI_FONT_DISPLAY_INFO *StringInfo,
1044 OUT EFI_FONT_DISPLAY_INFO **SystemInfo, OPTIONAL
1045 OUT UINTN *SystemInfoLen OPTIONAL
1046 )
1047 {
1048 EFI_STATUS Status;
1049 EFI_FONT_DISPLAY_INFO *SystemDefault;
1050 UINTN DefaultLen;
1051 BOOLEAN Flag;
1052
1053 ASSERT (Private != NULL && Private->Signature == HII_DATABASE_PRIVATE_DATA_SIGNATURE);
1054
1055 if (StringInfo == NULL && SystemInfo == NULL) {
1056 return TRUE;
1057 }
1058
1059 SystemDefault = NULL;
1060 DefaultLen = 0;
1061
1062 Status = GetSystemFont (Private, &SystemDefault, &DefaultLen);
1063 ASSERT_EFI_ERROR (Status);
1064 ASSERT ((SystemDefault != NULL) && (DefaultLen != 0));
1065
1066 //
1067 // Record the system default info.
1068 //
1069 if (SystemInfo != NULL) {
1070 *SystemInfo = SystemDefault;
1071 }
1072
1073 if (SystemInfoLen != NULL) {
1074 *SystemInfoLen = DefaultLen;
1075 }
1076
1077 if (StringInfo == NULL) {
1078 return TRUE;
1079 }
1080
1081 Flag = FALSE;
1082 //
1083 // Check the FontInfoMask to see whether it is retrieving system info.
1084 //
1085 if ((StringInfo->FontInfoMask & (EFI_FONT_INFO_SYS_FONT | EFI_FONT_INFO_ANY_FONT)) == 0) {
1086 if (StrCmp (StringInfo->FontInfo.FontName, SystemDefault->FontInfo.FontName) != 0) {
1087 goto Exit;
1088 }
1089 }
1090 if ((StringInfo->FontInfoMask & (EFI_FONT_INFO_SYS_SIZE | EFI_FONT_INFO_ANY_SIZE)) == 0) {
1091 if (StringInfo->FontInfo.FontSize != SystemDefault->FontInfo.FontSize) {
1092 goto Exit;
1093 }
1094 }
1095 if ((StringInfo->FontInfoMask & (EFI_FONT_INFO_SYS_STYLE | EFI_FONT_INFO_ANY_STYLE)) == 0) {
1096 if (StringInfo->FontInfo.FontStyle != SystemDefault->FontInfo.FontStyle) {
1097 goto Exit;
1098 }
1099 }
1100 if ((StringInfo->FontInfoMask & EFI_FONT_INFO_SYS_FORE_COLOR) == 0) {
1101 if (CompareMem (
1102 &StringInfo->ForegroundColor,
1103 &SystemDefault->ForegroundColor,
1104 sizeof (EFI_GRAPHICS_OUTPUT_BLT_PIXEL)
1105 ) != 0) {
1106 goto Exit;
1107 }
1108 }
1109 if ((StringInfo->FontInfoMask & EFI_FONT_INFO_SYS_BACK_COLOR) == 0) {
1110 if (CompareMem (
1111 &StringInfo->BackgroundColor,
1112 &SystemDefault->BackgroundColor,
1113 sizeof (EFI_GRAPHICS_OUTPUT_BLT_PIXEL)
1114 ) != 0) {
1115 goto Exit;
1116 }
1117 }
1118
1119 Flag = TRUE;
1120
1121 Exit:
1122 if (SystemInfo == NULL) {
1123 if (SystemDefault != NULL) {
1124 FreePool (SystemDefault);
1125 }
1126 }
1127 return Flag;
1128 }
1129
1130
1131 /**
1132 This function checks whether EFI_FONT_INFO exists in current database. If
1133 FontInfoMask is specified, check what options can be used to make a match.
1134 Note that the masks relate to where the system default should be supplied
1135 are ignored by this function.
1136
1137 @param Private Hii database private structure.
1138 @param FontInfo Points to EFI_FONT_INFO structure.
1139 @param FontInfoMask If not NULL, describes what options can be used
1140 to make a match between the font requested and
1141 the font available. The caller must guarantee
1142 this mask is valid.
1143 @param FontHandle On entry, Points to the font handle returned by a
1144 previous call to GetFontInfo() or NULL to start
1145 with the first font.
1146 @param GlobalFontInfo If not NULL, output the corresponding global font
1147 info.
1148
1149 @retval TRUE Existed
1150 @retval FALSE Not existed
1151
1152 **/
1153 BOOLEAN
IsFontInfoExisted(IN HII_DATABASE_PRIVATE_DATA * Private,IN EFI_FONT_INFO * FontInfo,IN EFI_FONT_INFO_MASK * FontInfoMask,OPTIONAL IN EFI_FONT_HANDLE FontHandle,OPTIONAL OUT HII_GLOBAL_FONT_INFO ** GlobalFontInfo OPTIONAL)1154 IsFontInfoExisted (
1155 IN HII_DATABASE_PRIVATE_DATA *Private,
1156 IN EFI_FONT_INFO *FontInfo,
1157 IN EFI_FONT_INFO_MASK *FontInfoMask, OPTIONAL
1158 IN EFI_FONT_HANDLE FontHandle, OPTIONAL
1159 OUT HII_GLOBAL_FONT_INFO **GlobalFontInfo OPTIONAL
1160 )
1161 {
1162 HII_GLOBAL_FONT_INFO *GlobalFont;
1163 HII_GLOBAL_FONT_INFO *GlobalFontBackup1;
1164 HII_GLOBAL_FONT_INFO *GlobalFontBackup2;
1165 LIST_ENTRY *Link;
1166 EFI_FONT_INFO_MASK Mask;
1167 BOOLEAN Matched;
1168 BOOLEAN VagueMatched1;
1169 BOOLEAN VagueMatched2;
1170
1171 ASSERT (Private != NULL && Private->Signature == HII_DATABASE_PRIVATE_DATA_SIGNATURE);
1172 ASSERT (FontInfo != NULL);
1173
1174 //
1175 // Matched flag represents an exactly match; VagueMatched1 represents a RESIZE
1176 // or RESTYLE match; VagueMatched2 represents a RESIZE | RESTYLE match.
1177 //
1178 Matched = FALSE;
1179 VagueMatched1 = FALSE;
1180 VagueMatched2 = FALSE;
1181
1182 Mask = 0;
1183 GlobalFontBackup1 = NULL;
1184 GlobalFontBackup2 = NULL;
1185
1186 // The process of where the system default should be supplied instead of
1187 // the specified font info beyonds this function's scope.
1188 //
1189 if (FontInfoMask != NULL) {
1190 Mask = *FontInfoMask & (~SYS_FONT_INFO_MASK);
1191 }
1192
1193 //
1194 // If not NULL, FontHandle points to the next node of the last searched font
1195 // node by previous call.
1196 //
1197 if (FontHandle == NULL) {
1198 Link = Private->FontInfoList.ForwardLink;
1199 } else {
1200 Link = (LIST_ENTRY *) FontHandle;
1201 }
1202
1203 for (; Link != &Private->FontInfoList; Link = Link->ForwardLink) {
1204 GlobalFont = CR (Link, HII_GLOBAL_FONT_INFO, Entry, HII_GLOBAL_FONT_INFO_SIGNATURE);
1205 if (FontInfoMask == NULL) {
1206 if (CompareMem (GlobalFont->FontInfo, FontInfo, GlobalFont->FontInfoSize) == 0) {
1207 if (GlobalFontInfo != NULL) {
1208 *GlobalFontInfo = GlobalFont;
1209 }
1210 return TRUE;
1211 }
1212 } else {
1213 //
1214 // Check which options could be used to make a match.
1215 //
1216 switch (Mask) {
1217 case EFI_FONT_INFO_ANY_FONT:
1218 if (GlobalFont->FontInfo->FontStyle == FontInfo->FontStyle &&
1219 GlobalFont->FontInfo->FontSize == FontInfo->FontSize) {
1220 Matched = TRUE;
1221 }
1222 break;
1223 case EFI_FONT_INFO_ANY_FONT | EFI_FONT_INFO_ANY_STYLE:
1224 if (GlobalFont->FontInfo->FontSize == FontInfo->FontSize) {
1225 Matched = TRUE;
1226 }
1227 break;
1228 case EFI_FONT_INFO_ANY_FONT | EFI_FONT_INFO_ANY_SIZE:
1229 if (GlobalFont->FontInfo->FontStyle == FontInfo->FontStyle) {
1230 Matched = TRUE;
1231 }
1232 break;
1233 case EFI_FONT_INFO_ANY_FONT | EFI_FONT_INFO_ANY_SIZE | EFI_FONT_INFO_ANY_STYLE:
1234 Matched = TRUE;
1235 break;
1236 //
1237 // If EFI_FONT_INFO_RESTYLE is specified, then the system may attempt to
1238 // remove some of the specified styles to meet the style requested.
1239 //
1240 case EFI_FONT_INFO_ANY_FONT | EFI_FONT_INFO_RESTYLE:
1241 if (GlobalFont->FontInfo->FontSize == FontInfo->FontSize) {
1242 if (GlobalFont->FontInfo->FontStyle == FontInfo->FontStyle) {
1243 Matched = TRUE;
1244 } else if ((GlobalFont->FontInfo->FontStyle & FontInfo->FontStyle) == FontInfo->FontStyle) {
1245 VagueMatched1 = TRUE;
1246 GlobalFontBackup1 = GlobalFont;
1247 }
1248 }
1249 break;
1250 //
1251 // If EFI_FONT_INFO_RESIZE is specified, then the system may attempt to
1252 // stretch or shrink a font to meet the size requested.
1253 //
1254 case EFI_FONT_INFO_ANY_FONT | EFI_FONT_INFO_RESIZE:
1255 if (GlobalFont->FontInfo->FontStyle == FontInfo->FontStyle) {
1256 if (GlobalFont->FontInfo->FontSize == FontInfo->FontSize) {
1257 Matched = TRUE;
1258 } else {
1259 VagueMatched1 = TRUE;
1260 GlobalFontBackup1 = GlobalFont;
1261 }
1262 }
1263 break;
1264 case EFI_FONT_INFO_ANY_FONT | EFI_FONT_INFO_RESTYLE | EFI_FONT_INFO_RESIZE:
1265 if (GlobalFont->FontInfo->FontStyle == FontInfo->FontStyle) {
1266 if (GlobalFont->FontInfo->FontSize == FontInfo->FontSize) {
1267 Matched = TRUE;
1268 } else {
1269 VagueMatched1 = TRUE;
1270 GlobalFontBackup1 = GlobalFont;
1271 }
1272 } else if ((GlobalFont->FontInfo->FontStyle & FontInfo->FontStyle) == FontInfo->FontStyle) {
1273 if (GlobalFont->FontInfo->FontSize == FontInfo->FontSize) {
1274 VagueMatched1 = TRUE;
1275 GlobalFontBackup1 = GlobalFont;
1276 } else {
1277 VagueMatched2 = TRUE;
1278 GlobalFontBackup2 = GlobalFont;
1279 }
1280 }
1281 break;
1282 case EFI_FONT_INFO_ANY_FONT | EFI_FONT_INFO_ANY_STYLE | EFI_FONT_INFO_RESIZE:
1283 if (GlobalFont->FontInfo->FontSize == FontInfo->FontSize) {
1284 Matched = TRUE;
1285 } else {
1286 VagueMatched1 = TRUE;
1287 GlobalFontBackup1 = GlobalFont;
1288 }
1289 break;
1290 case EFI_FONT_INFO_ANY_FONT | EFI_FONT_INFO_ANY_SIZE | EFI_FONT_INFO_RESTYLE:
1291 if (GlobalFont->FontInfo->FontStyle == FontInfo->FontStyle) {
1292 Matched = TRUE;
1293 } else if ((GlobalFont->FontInfo->FontStyle & FontInfo->FontStyle) == FontInfo->FontStyle) {
1294 VagueMatched1 = TRUE;
1295 GlobalFontBackup1 = GlobalFont;
1296 }
1297 break;
1298 case EFI_FONT_INFO_ANY_STYLE:
1299 if ((CompareMem (
1300 GlobalFont->FontInfo->FontName,
1301 FontInfo->FontName,
1302 StrSize (FontInfo->FontName)
1303 ) == 0) &&
1304 GlobalFont->FontInfo->FontSize == FontInfo->FontSize) {
1305 Matched = TRUE;
1306 }
1307 break;
1308 case EFI_FONT_INFO_ANY_STYLE | EFI_FONT_INFO_ANY_SIZE:
1309 if (CompareMem (
1310 GlobalFont->FontInfo->FontName,
1311 FontInfo->FontName,
1312 StrSize (FontInfo->FontName)
1313 ) == 0) {
1314 Matched = TRUE;
1315 }
1316 break;
1317 case EFI_FONT_INFO_ANY_STYLE | EFI_FONT_INFO_RESIZE:
1318 if (CompareMem (
1319 GlobalFont->FontInfo->FontName,
1320 FontInfo->FontName,
1321 StrSize (FontInfo->FontName)
1322 ) == 0) {
1323 if (GlobalFont->FontInfo->FontSize == FontInfo->FontSize) {
1324 Matched = TRUE;
1325 } else {
1326 VagueMatched1 = TRUE;
1327 GlobalFontBackup1 = GlobalFont;
1328 }
1329 }
1330 break;
1331 case EFI_FONT_INFO_ANY_SIZE:
1332 if ((CompareMem (
1333 GlobalFont->FontInfo->FontName,
1334 FontInfo->FontName,
1335 StrSize (FontInfo->FontName)
1336 ) == 0) &&
1337 GlobalFont->FontInfo->FontStyle == FontInfo->FontStyle) {
1338 Matched = TRUE;
1339 }
1340 break;
1341 case EFI_FONT_INFO_ANY_SIZE | EFI_FONT_INFO_RESTYLE:
1342 if (CompareMem (
1343 GlobalFont->FontInfo->FontName,
1344 FontInfo->FontName,
1345 StrSize (FontInfo->FontName)
1346 ) == 0) {
1347 if (GlobalFont->FontInfo->FontStyle == FontInfo->FontStyle) {
1348 Matched = TRUE;
1349 } else if ((GlobalFont->FontInfo->FontStyle & FontInfo->FontStyle) == FontInfo->FontStyle) {
1350 VagueMatched1 = TRUE;
1351 GlobalFontBackup1 = GlobalFont;
1352 }
1353 }
1354 break;
1355 case EFI_FONT_INFO_RESTYLE:
1356 if ((CompareMem (
1357 GlobalFont->FontInfo->FontName,
1358 FontInfo->FontName,
1359 StrSize (FontInfo->FontName)
1360 ) == 0) &&
1361 GlobalFont->FontInfo->FontSize == FontInfo->FontSize) {
1362
1363 if (GlobalFont->FontInfo->FontStyle == FontInfo->FontStyle) {
1364 Matched = TRUE;
1365 } else if ((GlobalFont->FontInfo->FontStyle & FontInfo->FontStyle) == FontInfo->FontStyle) {
1366 VagueMatched1 = TRUE;
1367 GlobalFontBackup1 = GlobalFont;
1368 }
1369 }
1370 break;
1371 case EFI_FONT_INFO_RESIZE:
1372 if ((CompareMem (
1373 GlobalFont->FontInfo->FontName,
1374 FontInfo->FontName,
1375 StrSize (FontInfo->FontName)
1376 ) == 0) &&
1377 GlobalFont->FontInfo->FontStyle == FontInfo->FontStyle) {
1378
1379 if (GlobalFont->FontInfo->FontSize == FontInfo->FontSize) {
1380 Matched = TRUE;
1381 } else {
1382 VagueMatched1 = TRUE;
1383 GlobalFontBackup1 = GlobalFont;
1384 }
1385 }
1386 break;
1387 case EFI_FONT_INFO_RESIZE | EFI_FONT_INFO_RESTYLE:
1388 if (CompareMem (
1389 GlobalFont->FontInfo->FontName,
1390 FontInfo->FontName,
1391 StrSize (FontInfo->FontName)
1392 ) == 0) {
1393 if (GlobalFont->FontInfo->FontStyle == FontInfo->FontStyle) {
1394 if (GlobalFont->FontInfo->FontSize == FontInfo->FontSize) {
1395 Matched = TRUE;
1396 } else {
1397 VagueMatched1 = TRUE;
1398 GlobalFontBackup1 = GlobalFont;
1399 }
1400 } else if ((GlobalFont->FontInfo->FontStyle & FontInfo->FontStyle) == FontInfo->FontStyle) {
1401 if (GlobalFont->FontInfo->FontSize == FontInfo->FontSize) {
1402 VagueMatched1 = TRUE;
1403 GlobalFontBackup1 = GlobalFont;
1404 } else {
1405 VagueMatched2 = TRUE;
1406 GlobalFontBackup2 = GlobalFont;
1407 }
1408 }
1409 }
1410 break;
1411 default:
1412 break;
1413 }
1414
1415 if (Matched) {
1416 if (GlobalFontInfo != NULL) {
1417 *GlobalFontInfo = GlobalFont;
1418 }
1419 return TRUE;
1420 }
1421 }
1422 }
1423
1424 if (VagueMatched1) {
1425 if (GlobalFontInfo != NULL) {
1426 *GlobalFontInfo = GlobalFontBackup1;
1427 }
1428 return TRUE;
1429 } else if (VagueMatched2) {
1430 if (GlobalFontInfo != NULL) {
1431 *GlobalFontInfo = GlobalFontBackup2;
1432 }
1433 return TRUE;
1434 }
1435
1436 return FALSE;
1437 }
1438
1439
1440 /**
1441 Check whether the unicode represents a line break or not.
1442
1443 This is a internal function. Please see Section 27.2.6 of the UEFI Specification
1444 for a description of the supported string format.
1445
1446 @param Char Unicode character
1447
1448 @retval 0 Yes, it forces a line break.
1449 @retval 1 Yes, it presents a line break opportunity
1450 @retval 2 Yes, it requires a line break happen before and after it.
1451 @retval -1 No, it is not a link break.
1452
1453 **/
1454 INT8
IsLineBreak(IN CHAR16 Char)1455 IsLineBreak (
1456 IN CHAR16 Char
1457 )
1458 {
1459 switch (Char) {
1460 //
1461 // Mandatory line break characters, which force a line-break
1462 //
1463 case 0x000A:
1464 case 0x000C:
1465 case 0x000D:
1466 case 0x2028:
1467 case 0x2029:
1468 return 0;
1469 //
1470 // Space characters, which is taken as a line-break opportunity
1471 //
1472 case 0x0020:
1473 case 0x1680:
1474 case 0x2000:
1475 case 0x2001:
1476 case 0x2002:
1477 case 0x2003:
1478 case 0x2004:
1479 case 0x2005:
1480 case 0x2006:
1481 case 0x2008:
1482 case 0x2009:
1483 case 0x200A:
1484 case 0x205F:
1485 //
1486 // In-Word Break Opportunities
1487 //
1488 case 0x200B:
1489 return 1;
1490 //
1491 // A space which is not a line-break opportunity
1492 //
1493 case 0x00A0:
1494 case 0x202F:
1495 //
1496 // A hyphen which is not a line-break opportunity
1497 //
1498 case 0x2011:
1499 return -1;
1500 //
1501 // Hyphen characters which describe line break opportunities after the character
1502 //
1503 case 0x058A:
1504 case 0x2010:
1505 case 0x2012:
1506 case 0x2013:
1507 case 0x0F0B:
1508 case 0x1361:
1509 case 0x17D5:
1510 return 1;
1511 //
1512 // A hyphen which describes line break opportunities before and after them, but not between a pair of them
1513 //
1514 case 0x2014:
1515 return 2;
1516 }
1517 return -1;
1518 }
1519
1520
1521 /**
1522 Renders a string to a bitmap or to the display.
1523
1524 @param This A pointer to the EFI_HII_FONT_PROTOCOL instance.
1525 @param Flags Describes how the string is to be drawn.
1526 @param String Points to the null-terminated string to be
1527 displayed.
1528 @param StringInfo Points to the string output information,
1529 including the color and font. If NULL, then the
1530 string will be output in the default system font
1531 and color.
1532 @param Blt If this points to a non-NULL on entry, this
1533 points to the image, which is Width pixels wide
1534 and Height pixels high. The string will be drawn
1535 onto this image and
1536 EFI_HII_OUT_FLAG_CLIP is implied. If this points
1537 to a NULL on entry, then a buffer
1538 will be allocated to hold the generated image and
1539 the pointer updated on exit. It is the caller's
1540 responsibility to free this buffer.
1541 @param BltX Specifies the offset from the left and top edge
1542 of the image of the first character cell in the
1543 image.
1544 @param BltY Specifies the offset from the left and top edge
1545 of the image of the first character cell in the
1546 image.
1547 @param RowInfoArray If this is non-NULL on entry, then on exit, this
1548 will point to an allocated buffer containing
1549 row information and RowInfoArraySize will be
1550 updated to contain the number of elements.
1551 This array describes the characters which were at
1552 least partially drawn and the heights of the
1553 rows. It is the caller's responsibility to free
1554 this buffer.
1555 @param RowInfoArraySize If this is non-NULL on entry, then on exit it
1556 contains the number of elements in RowInfoArray.
1557 @param ColumnInfoArray If this is non-NULL, then on return it will be
1558 filled with the horizontal offset for each
1559 character in the string on the row where it is
1560 displayed. Non-printing characters will have
1561 the offset ~0. The caller is responsible to
1562 allocate a buffer large enough so that there
1563 is one entry for each character in the string,
1564 not including the null-terminator. It is possible
1565 when character display is normalized that some
1566 character cells overlap.
1567
1568 @retval EFI_SUCCESS The string was successfully rendered.
1569 @retval EFI_OUT_OF_RESOURCES Unable to allocate an output buffer for
1570 RowInfoArray or Blt.
1571 @retval EFI_INVALID_PARAMETER The String or Blt was NULL.
1572 @retval EFI_INVALID_PARAMETER Flags were invalid combination..
1573
1574 **/
1575 EFI_STATUS
1576 EFIAPI
HiiStringToImage(IN CONST EFI_HII_FONT_PROTOCOL * This,IN EFI_HII_OUT_FLAGS Flags,IN CONST EFI_STRING String,IN CONST EFI_FONT_DISPLAY_INFO * StringInfo OPTIONAL,IN OUT EFI_IMAGE_OUTPUT ** Blt,IN UINTN BltX,IN UINTN BltY,OUT EFI_HII_ROW_INFO ** RowInfoArray OPTIONAL,OUT UINTN * RowInfoArraySize OPTIONAL,OUT UINTN * ColumnInfoArray OPTIONAL)1577 HiiStringToImage (
1578 IN CONST EFI_HII_FONT_PROTOCOL *This,
1579 IN EFI_HII_OUT_FLAGS Flags,
1580 IN CONST EFI_STRING String,
1581 IN CONST EFI_FONT_DISPLAY_INFO *StringInfo OPTIONAL,
1582 IN OUT EFI_IMAGE_OUTPUT **Blt,
1583 IN UINTN BltX,
1584 IN UINTN BltY,
1585 OUT EFI_HII_ROW_INFO **RowInfoArray OPTIONAL,
1586 OUT UINTN *RowInfoArraySize OPTIONAL,
1587 OUT UINTN *ColumnInfoArray OPTIONAL
1588 )
1589 {
1590 EFI_STATUS Status;
1591 HII_DATABASE_PRIVATE_DATA *Private;
1592 UINT8 **GlyphBuf;
1593 EFI_HII_GLYPH_INFO *Cell;
1594 UINT8 *Attributes;
1595 EFI_IMAGE_OUTPUT *Image;
1596 EFI_STRING StringPtr;
1597 EFI_STRING StringTmp;
1598 EFI_HII_ROW_INFO *RowInfo;
1599 UINTN LineWidth;
1600 UINTN LineHeight;
1601 UINTN LineOffset;
1602 UINTN LastLineHeight;
1603 UINTN BaseLineOffset;
1604 UINT16 MaxRowNum;
1605 UINT16 RowIndex;
1606 UINTN Index;
1607 UINTN NextIndex;
1608 UINTN Index1;
1609 EFI_FONT_DISPLAY_INFO *StringInfoOut;
1610 EFI_FONT_DISPLAY_INFO *SystemDefault;
1611 EFI_FONT_HANDLE FontHandle;
1612 EFI_STRING StringIn;
1613 EFI_STRING StringIn2;
1614 UINT16 Height;
1615 UINT16 BaseLine;
1616 EFI_FONT_INFO *FontInfo;
1617 BOOLEAN SysFontFlag;
1618 EFI_GRAPHICS_OUTPUT_BLT_PIXEL Foreground;
1619 EFI_GRAPHICS_OUTPUT_BLT_PIXEL Background;
1620 BOOLEAN Transparent;
1621 EFI_GRAPHICS_OUTPUT_BLT_PIXEL *BltBuffer;
1622 EFI_GRAPHICS_OUTPUT_BLT_PIXEL *BufferPtr;
1623 UINTN RowInfoSize;
1624 BOOLEAN LineBreak;
1625 UINTN StrLength;
1626 EFI_GRAPHICS_OUTPUT_BLT_PIXEL *RowBufferPtr;
1627 HII_GLOBAL_FONT_INFO *GlobalFont;
1628 UINT32 PreInitBkgnd;
1629
1630 //
1631 // Check incoming parameters.
1632 //
1633
1634 if (This == NULL || String == NULL || Blt == NULL) {
1635 return EFI_INVALID_PARAMETER;
1636 }
1637 if (*Blt == NULL) {
1638 //
1639 // These two flag cannot be used if Blt is NULL upon entry.
1640 //
1641 if ((Flags & EFI_HII_OUT_FLAG_TRANSPARENT) == EFI_HII_OUT_FLAG_TRANSPARENT) {
1642 return EFI_INVALID_PARAMETER;
1643 }
1644 if ((Flags & EFI_HII_OUT_FLAG_CLIP) == EFI_HII_OUT_FLAG_CLIP) {
1645 return EFI_INVALID_PARAMETER;
1646 }
1647 }
1648 //
1649 // These two flags require that EFI_HII_OUT_FLAG_CLIP be also set.
1650 //
1651 if ((Flags & (EFI_HII_OUT_FLAG_CLIP | EFI_HII_OUT_FLAG_CLIP_CLEAN_X)) == EFI_HII_OUT_FLAG_CLIP_CLEAN_X) {
1652 return EFI_INVALID_PARAMETER;
1653 }
1654 if ((Flags & (EFI_HII_OUT_FLAG_CLIP | EFI_HII_OUT_FLAG_CLIP_CLEAN_Y)) == EFI_HII_OUT_FLAG_CLIP_CLEAN_Y) {
1655 return EFI_INVALID_PARAMETER;
1656 }
1657 //
1658 // This flag cannot be used with EFI_HII_OUT_FLAG_CLEAN_X.
1659 //
1660 if ((Flags & (EFI_HII_OUT_FLAG_WRAP | EFI_HII_OUT_FLAG_CLIP_CLEAN_X)) == (EFI_HII_OUT_FLAG_WRAP | EFI_HII_OUT_FLAG_CLIP_CLEAN_X)) {
1661 return EFI_INVALID_PARAMETER;
1662 }
1663
1664 if (*Blt == NULL) {
1665 //
1666 // Create a new bitmap and draw the string onto this image.
1667 //
1668 Image = AllocateZeroPool (sizeof (EFI_IMAGE_OUTPUT));
1669 if (Image == NULL) {
1670 return EFI_OUT_OF_RESOURCES;
1671 }
1672 Image->Width = 800;
1673 Image->Height = 600;
1674 Image->Image.Bitmap = AllocateZeroPool (Image->Width * Image->Height *sizeof (EFI_GRAPHICS_OUTPUT_BLT_PIXEL));
1675 if (Image->Image.Bitmap == NULL) {
1676 FreePool (Image);
1677 return EFI_OUT_OF_RESOURCES;
1678 }
1679
1680 //
1681 // Other flags are not permitted when Blt is NULL.
1682 //
1683 Flags &= EFI_HII_OUT_FLAG_WRAP | EFI_HII_IGNORE_IF_NO_GLYPH | EFI_HII_IGNORE_LINE_BREAK;
1684 *Blt = Image;
1685 }
1686
1687 StrLength = StrLen(String);
1688 GlyphBuf = (UINT8 **) AllocateZeroPool (StrLength * sizeof (UINT8 *));
1689 ASSERT (GlyphBuf != NULL);
1690 Cell = (EFI_HII_GLYPH_INFO *) AllocateZeroPool (StrLength * sizeof (EFI_HII_GLYPH_INFO));
1691 ASSERT (Cell != NULL);
1692 Attributes = (UINT8 *) AllocateZeroPool (StrLength * sizeof (UINT8));
1693 ASSERT (Attributes != NULL);
1694
1695 RowInfo = NULL;
1696 Status = EFI_SUCCESS;
1697 StringIn2 = NULL;
1698 SystemDefault = NULL;
1699 StringIn = NULL;
1700
1701 //
1702 // Calculate the string output information, including specified color and font .
1703 // If StringInfo does not points to system font info, it must indicate an existing
1704 // EFI_FONT_INFO.
1705 //
1706 StringInfoOut = NULL;
1707 FontHandle = NULL;
1708 Private = HII_FONT_DATABASE_PRIVATE_DATA_FROM_THIS (This);
1709 SysFontFlag = IsSystemFontInfo (Private, (EFI_FONT_DISPLAY_INFO *) StringInfo, &SystemDefault, NULL);
1710
1711 if (SysFontFlag) {
1712 ASSERT (SystemDefault != NULL);
1713 FontInfo = NULL;
1714 Height = SystemDefault->FontInfo.FontSize;
1715 BaseLine = SystemDefault->FontInfo.FontSize;
1716 Foreground = SystemDefault->ForegroundColor;
1717 Background = SystemDefault->BackgroundColor;
1718
1719 } else {
1720 //
1721 // StringInfo must not be NULL if it is not system info.
1722 //
1723 ASSERT (StringInfo != NULL);
1724 Status = HiiGetFontInfo (This, &FontHandle, (EFI_FONT_DISPLAY_INFO *) StringInfo, &StringInfoOut, NULL);
1725 if (Status == EFI_NOT_FOUND) {
1726 //
1727 // The specified EFI_FONT_DISPLAY_INFO does not exist in current database.
1728 // Use the system font instead. Still use the color specified by StringInfo.
1729 //
1730 SysFontFlag = TRUE;
1731 FontInfo = NULL;
1732 Height = SystemDefault->FontInfo.FontSize;
1733 BaseLine = SystemDefault->FontInfo.FontSize;
1734 Foreground = ((EFI_FONT_DISPLAY_INFO *) StringInfo)->ForegroundColor;
1735 Background = ((EFI_FONT_DISPLAY_INFO *) StringInfo)->BackgroundColor;
1736
1737 } else if (Status == EFI_SUCCESS) {
1738 FontInfo = &StringInfoOut->FontInfo;
1739 IsFontInfoExisted (Private, FontInfo, NULL, NULL, &GlobalFont);
1740 Height = GlobalFont->FontPackage->Height;
1741 BaseLine = GlobalFont->FontPackage->BaseLine;
1742 Foreground = StringInfoOut->ForegroundColor;
1743 Background = StringInfoOut->BackgroundColor;
1744 } else {
1745 goto Exit;
1746 }
1747 }
1748
1749 //
1750 // Use the maximum height of font as the base line.
1751 // And, use the maximum height as line height.
1752 //
1753 LineHeight = Height;
1754 LastLineHeight = Height;
1755 BaseLineOffset = Height - BaseLine;
1756
1757 //
1758 // Parse the string to be displayed to drop some ignored characters.
1759 //
1760
1761 StringPtr = String;
1762
1763 //
1764 // Ignore line-break characters only. Hyphens or dash character will be displayed
1765 // without line-break opportunity.
1766 //
1767 if ((Flags & EFI_HII_IGNORE_LINE_BREAK) == EFI_HII_IGNORE_LINE_BREAK) {
1768 StringIn = AllocateZeroPool (StrSize (StringPtr));
1769 if (StringIn == NULL) {
1770 Status = EFI_OUT_OF_RESOURCES;
1771 goto Exit;
1772 }
1773 StringTmp = StringIn;
1774 while (*StringPtr != 0) {
1775 if (IsLineBreak (*StringPtr) == 0) {
1776 StringPtr++;
1777 } else {
1778 *StringTmp++ = *StringPtr++;
1779 }
1780 }
1781 *StringTmp = 0;
1782 StringPtr = StringIn;
1783 }
1784 //
1785 // If EFI_HII_IGNORE_IF_NO_GLYPH is set, then characters which have no glyphs
1786 // are not drawn. Otherwise they are replaced with Unicode character 0xFFFD.
1787 //
1788 StringIn2 = AllocateZeroPool (StrSize (StringPtr));
1789 if (StringIn2 == NULL) {
1790 Status = EFI_OUT_OF_RESOURCES;
1791 goto Exit;
1792 }
1793 Index = 0;
1794 StringTmp = StringIn2;
1795 StrLength = StrLen(StringPtr);
1796 while (*StringPtr != 0 && Index < StrLength) {
1797 if (IsLineBreak (*StringPtr) == 0) {
1798 *StringTmp++ = *StringPtr++;
1799 Index++;
1800 continue;
1801 }
1802
1803 Status = GetGlyphBuffer (Private, *StringPtr, FontInfo, &GlyphBuf[Index], &Cell[Index], &Attributes[Index]);
1804 if (Status == EFI_NOT_FOUND) {
1805 if ((Flags & EFI_HII_IGNORE_IF_NO_GLYPH) == EFI_HII_IGNORE_IF_NO_GLYPH) {
1806 GlyphBuf[Index] = NULL;
1807 ZeroMem (&Cell[Index], sizeof (Cell[Index]));
1808 Status = EFI_SUCCESS;
1809 } else {
1810 //
1811 // Unicode 0xFFFD must exist in current hii database if this flag is not set.
1812 //
1813 Status = GetGlyphBuffer (
1814 Private,
1815 REPLACE_UNKNOWN_GLYPH,
1816 FontInfo,
1817 &GlyphBuf[Index],
1818 &Cell[Index],
1819 &Attributes[Index]
1820 );
1821 if (EFI_ERROR (Status)) {
1822 Status = EFI_INVALID_PARAMETER;
1823 }
1824 }
1825 }
1826
1827 if (EFI_ERROR (Status)) {
1828 goto Exit;
1829 }
1830
1831 *StringTmp++ = *StringPtr++;
1832 Index++;
1833 }
1834 *StringTmp = 0;
1835 StringPtr = StringIn2;
1836
1837 //
1838 // Draw the string according to the specified EFI_HII_OUT_FLAGS and Blt.
1839 // If Blt is not NULL, then EFI_HII_OUT_FLAG_CLIP is implied, render this string
1840 // to an existing image (bitmap or screen depending on flags) pointed by "*Blt".
1841 // Otherwise render this string to a new allocated image and output it.
1842 //
1843 Image = *Blt;
1844 BufferPtr = Image->Image.Bitmap + Image->Width * BltY + BltX;
1845 if (Image->Height < BltY) {
1846 //
1847 // the top edge of the image should be in Image resolution scope.
1848 //
1849 Status = EFI_INVALID_PARAMETER;
1850 goto Exit;
1851 }
1852 MaxRowNum = (UINT16) ((Image->Height - BltY) / Height);
1853 if ((Image->Height - BltY) % Height != 0) {
1854 LastLineHeight = (Image->Height - BltY) % Height;
1855 MaxRowNum++;
1856 }
1857
1858 RowInfo = (EFI_HII_ROW_INFO *) AllocateZeroPool (MaxRowNum * sizeof (EFI_HII_ROW_INFO));
1859 if (RowInfo == NULL) {
1860 Status = EFI_OUT_OF_RESOURCES;
1861 goto Exit;
1862 }
1863
1864 //
1865 // Format the glyph buffer according to flags.
1866 //
1867 Transparent = (BOOLEAN) ((Flags & EFI_HII_OUT_FLAG_TRANSPARENT) == EFI_HII_OUT_FLAG_TRANSPARENT ? TRUE : FALSE);
1868
1869 for (RowIndex = 0, Index = 0; RowIndex < MaxRowNum && StringPtr[Index] != 0; ) {
1870 LineWidth = 0;
1871 LineBreak = FALSE;
1872
1873 //
1874 // Clip the final row if the row's bottom-most on pixel cannot fit when
1875 // EFI_HII_OUT_FLAG_CLEAN_Y is set.
1876 //
1877 if (RowIndex == MaxRowNum - 1) {
1878 if ((Flags & EFI_HII_OUT_FLAG_CLIP_CLEAN_Y) == EFI_HII_OUT_FLAG_CLIP_CLEAN_Y && LastLineHeight < LineHeight ) {
1879 //
1880 // Don't draw at all if the row's bottom-most on pixel cannot fit.
1881 //
1882 break;
1883 }
1884 LineHeight = LastLineHeight;
1885 }
1886
1887 //
1888 // Calculate how many characters there are in a row.
1889 //
1890 RowInfo[RowIndex].StartIndex = Index;
1891
1892 while (LineWidth + BltX < Image->Width && StringPtr[Index] != 0) {
1893 if ((Flags & EFI_HII_IGNORE_LINE_BREAK) == 0 &&
1894 IsLineBreak (StringPtr[Index]) == 0) {
1895 //
1896 // It forces a line break that ends this row.
1897 //
1898 Index++;
1899 LineBreak = TRUE;
1900 break;
1901 }
1902
1903 //
1904 // If the glyph of the character is existing, then accumulate the actual printed width
1905 //
1906 LineWidth += (UINTN) Cell[Index].AdvanceX;
1907
1908 Index++;
1909 }
1910
1911 //
1912 // Record index of next char.
1913 //
1914 NextIndex = Index;
1915 //
1916 // Return to the previous char.
1917 //
1918 Index--;
1919 if (LineBreak && Index > 0 ) {
1920 //
1921 // Return the previous non line break char.
1922 //
1923 Index --;
1924 }
1925
1926 //
1927 // If this character is the last character of a row, we need not
1928 // draw its (AdvanceX - Width - OffsetX) for next character.
1929 //
1930 LineWidth -= (UINTN) (Cell[Index].AdvanceX - Cell[Index].Width - Cell[Index].OffsetX);
1931
1932 //
1933 // Clip the right-most character if cannot fit when EFI_HII_OUT_FLAG_CLEAN_X is set.
1934 //
1935 if (LineWidth + BltX <= Image->Width ||
1936 (LineWidth + BltX > Image->Width && (Flags & EFI_HII_OUT_FLAG_CLIP_CLEAN_X) == 0)) {
1937 //
1938 // Record right-most character in RowInfo even if it is partially displayed.
1939 //
1940 RowInfo[RowIndex].EndIndex = Index;
1941 RowInfo[RowIndex].LineWidth = LineWidth;
1942 RowInfo[RowIndex].LineHeight = LineHeight;
1943 RowInfo[RowIndex].BaselineOffset = BaseLineOffset;
1944 } else {
1945 //
1946 // When EFI_HII_OUT_FLAG_CLEAN_X is set, it will not draw a character
1947 // if its right-most on pixel cannot fit.
1948 //
1949 if (Index > RowInfo[RowIndex].StartIndex) {
1950 //
1951 // Don't draw the last char on this row. And, don't draw the second last char (AdvanceX - Width - OffsetX).
1952 //
1953 LineWidth -= (UINTN) (Cell[Index].Width + Cell[Index].OffsetX);
1954 LineWidth -= (UINTN) (Cell[Index - 1].AdvanceX - Cell[Index - 1].Width - Cell[Index - 1].OffsetX);
1955 RowInfo[RowIndex].EndIndex = Index - 1;
1956 RowInfo[RowIndex].LineWidth = LineWidth;
1957 RowInfo[RowIndex].LineHeight = LineHeight;
1958 RowInfo[RowIndex].BaselineOffset = BaseLineOffset;
1959 } else {
1960 //
1961 // There is no enough column to draw any character, so set current line width to zero.
1962 // And go to draw Next line if LineBreak is set.
1963 //
1964 RowInfo[RowIndex].LineWidth = 0;
1965 goto NextLine;
1966 }
1967 }
1968
1969 //
1970 // EFI_HII_OUT_FLAG_WRAP will wrap the text at the right-most line-break
1971 // opportunity prior to a character whose right-most extent would exceed Width.
1972 // Search the right-most line-break opportunity here.
1973 //
1974 if ((Flags & EFI_HII_OUT_FLAG_WRAP) == EFI_HII_OUT_FLAG_WRAP &&
1975 (RowInfo[RowIndex].LineWidth + BltX > Image->Width || StringPtr[NextIndex] != 0) &&
1976 !LineBreak) {
1977 if ((Flags & EFI_HII_IGNORE_LINE_BREAK) == 0) {
1978 LineWidth = RowInfo[RowIndex].LineWidth;
1979 for (Index1 = RowInfo[RowIndex].EndIndex; Index1 >= RowInfo[RowIndex].StartIndex; Index1--) {
1980 if (Index1 == RowInfo[RowIndex].EndIndex) {
1981 LineWidth -= (Cell[Index1].Width + Cell[Index1].OffsetX);
1982 } else {
1983 LineWidth -= Cell[Index1].AdvanceX;
1984 }
1985 if (IsLineBreak (StringPtr[Index1]) > 0) {
1986 LineBreak = TRUE;
1987 if (Index1 > RowInfo[RowIndex].StartIndex) {
1988 RowInfo[RowIndex].EndIndex = Index1 - 1;
1989 }
1990 //
1991 // relocate to the character after the right-most line break opportunity of this line
1992 //
1993 NextIndex = Index1 + 1;
1994 break;
1995 }
1996 //
1997 // If don't find a line break opportunity from EndIndex to StartIndex,
1998 // then jump out.
1999 //
2000 if (Index1 == RowInfo[RowIndex].StartIndex)
2001 break;
2002 }
2003
2004 //
2005 // Update LineWidth to the real width
2006 //
2007 if (IsLineBreak (StringPtr[Index1]) > 0) {
2008 if (Index1 == RowInfo[RowIndex].StartIndex) {
2009 LineWidth = 0;
2010 } else {
2011 LineWidth -= (UINTN) (Cell[Index1 - 1].AdvanceX - Cell[Index1 - 1].Width - Cell[Index1 - 1].OffsetX);
2012 }
2013 RowInfo[RowIndex].LineWidth = LineWidth;
2014 }
2015 }
2016 //
2017 // If no line-break opportunity can be found, then the text will
2018 // behave as if EFI_HII_OUT_FLAG_CLEAN_X is set.
2019 //
2020 if (!LineBreak) {
2021 LineWidth = RowInfo[RowIndex].LineWidth;
2022 Index1 = RowInfo[RowIndex].EndIndex;
2023 if (LineWidth + BltX > Image->Width) {
2024 if (Index1 > RowInfo[RowIndex].StartIndex) {
2025 //
2026 // Don't draw the last char on this row. And, don't draw the second last char (AdvanceX - Width - OffsetX).
2027 //
2028 LineWidth -= (UINTN) (Cell[Index1].Width + Cell[Index1].OffsetX);
2029 LineWidth -= (UINTN) (Cell[Index1 - 1].AdvanceX - Cell[Index1 - 1].Width - Cell[Index1 - 1].OffsetX);
2030 RowInfo[RowIndex].EndIndex = Index1 - 1;
2031 RowInfo[RowIndex].LineWidth = LineWidth;
2032 } else {
2033 //
2034 // There is no enough column to draw any character, so set current line width to zero.
2035 // And go to draw Next line if LineBreak is set.
2036 //
2037 RowInfo[RowIndex].LineWidth = 0;
2038 goto NextLine;
2039 }
2040 }
2041 }
2042 }
2043
2044 //
2045 // LineWidth can't exceed Image width.
2046 //
2047 if (RowInfo[RowIndex].LineWidth + BltX > Image->Width) {
2048 RowInfo[RowIndex].LineWidth = Image->Width - BltX;
2049 }
2050
2051 //
2052 // Draw it to screen or existing bitmap depending on whether
2053 // EFI_HII_DIRECT_TO_SCREEN is set.
2054 //
2055 LineOffset = 0;
2056 if ((Flags & EFI_HII_DIRECT_TO_SCREEN) == EFI_HII_DIRECT_TO_SCREEN) {
2057 BltBuffer = NULL;
2058 if (RowInfo[RowIndex].LineWidth != 0) {
2059 BltBuffer = AllocatePool (RowInfo[RowIndex].LineWidth * RowInfo[RowIndex].LineHeight * sizeof (EFI_GRAPHICS_OUTPUT_BLT_PIXEL));
2060 if (BltBuffer == NULL) {
2061 Status = EFI_OUT_OF_RESOURCES;
2062 goto Exit;
2063 }
2064 //
2065 // Initialize the background color.
2066 //
2067 PreInitBkgnd = Background.Blue | Background.Green << 8 | Background.Red << 16;
2068 SetMem32 (BltBuffer,RowInfo[RowIndex].LineWidth * RowInfo[RowIndex].LineHeight * sizeof (EFI_GRAPHICS_OUTPUT_BLT_PIXEL),PreInitBkgnd);
2069 //
2070 // Set BufferPtr to Origin by adding baseline to the starting position.
2071 //
2072 BufferPtr = BltBuffer + BaseLine * RowInfo[RowIndex].LineWidth;
2073 }
2074 for (Index1 = RowInfo[RowIndex].StartIndex; Index1 <= RowInfo[RowIndex].EndIndex; Index1++) {
2075 if (RowInfo[RowIndex].LineWidth > 0 && RowInfo[RowIndex].LineWidth > LineOffset) {
2076 //
2077 // Only BLT these character which have corresponding glyph in font database.
2078 //
2079 GlyphToImage (
2080 GlyphBuf[Index1],
2081 Foreground,
2082 Background,
2083 (UINT16) RowInfo[RowIndex].LineWidth,
2084 BaseLine,
2085 RowInfo[RowIndex].LineWidth - LineOffset,
2086 RowInfo[RowIndex].LineHeight,
2087 Transparent,
2088 &Cell[Index1],
2089 Attributes[Index1],
2090 &BufferPtr
2091 );
2092 }
2093 if (ColumnInfoArray != NULL) {
2094 if ((GlyphBuf[Index1] == NULL && Cell[Index1].AdvanceX == 0)
2095 || RowInfo[RowIndex].LineWidth == 0) {
2096 *ColumnInfoArray = (UINTN) ~0;
2097 } else {
2098 *ColumnInfoArray = LineOffset + Cell[Index1].OffsetX + BltX;
2099 }
2100 ColumnInfoArray++;
2101 }
2102 LineOffset += Cell[Index1].AdvanceX;
2103 }
2104
2105 if (BltBuffer != NULL) {
2106 Status = Image->Image.Screen->Blt (
2107 Image->Image.Screen,
2108 BltBuffer,
2109 EfiBltBufferToVideo,
2110 0,
2111 0,
2112 BltX,
2113 BltY,
2114 RowInfo[RowIndex].LineWidth,
2115 RowInfo[RowIndex].LineHeight,
2116 0
2117 );
2118 if (EFI_ERROR (Status)) {
2119 FreePool (BltBuffer);
2120 goto Exit;
2121 }
2122
2123 FreePool (BltBuffer);
2124 }
2125 } else {
2126 //
2127 // Save the starting position for calculate the starting position of next row.
2128 //
2129 RowBufferPtr = BufferPtr;
2130 //
2131 // Set BufferPtr to Origin by adding baseline to the starting position.
2132 //
2133 BufferPtr = BufferPtr + BaseLine * Image->Width;
2134 for (Index1 = RowInfo[RowIndex].StartIndex; Index1 <= RowInfo[RowIndex].EndIndex; Index1++) {
2135 if (RowInfo[RowIndex].LineWidth > 0 && RowInfo[RowIndex].LineWidth > LineOffset) {
2136 //
2137 // Only BLT these character which have corresponding glyph in font database.
2138 //
2139 GlyphToImage (
2140 GlyphBuf[Index1],
2141 Foreground,
2142 Background,
2143 Image->Width,
2144 BaseLine,
2145 RowInfo[RowIndex].LineWidth - LineOffset,
2146 RowInfo[RowIndex].LineHeight,
2147 Transparent,
2148 &Cell[Index1],
2149 Attributes[Index1],
2150 &BufferPtr
2151 );
2152 }
2153 if (ColumnInfoArray != NULL) {
2154 if ((GlyphBuf[Index1] == NULL && Cell[Index1].AdvanceX == 0)
2155 || RowInfo[RowIndex].LineWidth == 0) {
2156 *ColumnInfoArray = (UINTN) ~0;
2157 } else {
2158 *ColumnInfoArray = LineOffset + Cell[Index1].OffsetX + BltX;
2159 }
2160 ColumnInfoArray++;
2161 }
2162 LineOffset += Cell[Index1].AdvanceX;
2163 }
2164
2165 //
2166 // Jump to starting position of next row.
2167 //
2168 if (RowIndex == 0) {
2169 BufferPtr = RowBufferPtr - BltX + LineHeight * Image->Width;
2170 } else {
2171 BufferPtr = RowBufferPtr + LineHeight * Image->Width;
2172 }
2173 }
2174
2175 NextLine:
2176 //
2177 // Recalculate the start point of Y axis to draw multi-lines with the order of top-to-down
2178 //
2179 BltY += RowInfo[RowIndex].LineHeight;
2180
2181 RowIndex++;
2182 Index = NextIndex;
2183
2184 if (!LineBreak) {
2185 //
2186 // If there is not a mandatory line break or line break opportunity, only render one line to image
2187 //
2188 break;
2189 }
2190 }
2191
2192 //
2193 // Write output parameters.
2194 //
2195 RowInfoSize = RowIndex * sizeof (EFI_HII_ROW_INFO);
2196 if (RowInfoArray != NULL) {
2197 if (RowInfoSize > 0) {
2198 *RowInfoArray = AllocateZeroPool (RowInfoSize);
2199 if (*RowInfoArray == NULL) {
2200 Status = EFI_OUT_OF_RESOURCES;
2201 goto Exit;
2202 }
2203 CopyMem (*RowInfoArray, RowInfo, RowInfoSize);
2204 } else {
2205 *RowInfoArray = NULL;
2206 }
2207 }
2208 if (RowInfoArraySize != NULL) {
2209 *RowInfoArraySize = RowIndex;
2210 }
2211
2212 Status = EFI_SUCCESS;
2213
2214 Exit:
2215
2216 for (Index = 0; Index < StrLength; Index++) {
2217 if (GlyphBuf[Index] != NULL) {
2218 FreePool (GlyphBuf[Index]);
2219 }
2220 }
2221 if (StringIn != NULL) {
2222 FreePool (StringIn);
2223 }
2224 if (StringIn2 != NULL) {
2225 FreePool (StringIn2);
2226 }
2227 if (StringInfoOut != NULL) {
2228 FreePool (StringInfoOut);
2229 }
2230 if (RowInfo != NULL) {
2231 FreePool (RowInfo);
2232 }
2233 if (SystemDefault != NULL) {
2234 FreePool (SystemDefault);
2235 }
2236 if (GlyphBuf != NULL) {
2237 FreePool (GlyphBuf);
2238 }
2239 if (Cell != NULL) {
2240 FreePool (Cell);
2241 }
2242 if (Attributes != NULL) {
2243 FreePool (Attributes);
2244 }
2245
2246 return Status;
2247 }
2248
2249
2250 /**
2251 Render a string to a bitmap or the screen containing the contents of the specified string.
2252
2253 @param This A pointer to the EFI_HII_FONT_PROTOCOL instance.
2254 @param Flags Describes how the string is to be drawn.
2255 @param PackageList The package list in the HII database to search
2256 for the specified string.
2257 @param StringId The string's id, which is unique within
2258 PackageList.
2259 @param Language Points to the language for the retrieved string.
2260 If NULL, then the current system language is
2261 used.
2262 @param StringInfo Points to the string output information,
2263 including the color and font. If NULL, then the
2264 string will be output in the default system font
2265 and color.
2266 @param Blt If this points to a non-NULL on entry, this
2267 points to the image, which is Width pixels wide
2268 and Height pixels high. The string will be drawn
2269 onto this image and
2270 EFI_HII_OUT_FLAG_CLIP is implied. If this points
2271 to a NULL on entry, then a buffer
2272 will be allocated to hold the generated image and
2273 the pointer updated on exit. It is the caller's
2274 responsibility to free this buffer.
2275 @param BltX Specifies the offset from the left and top edge
2276 of the image of the first character cell in the
2277 image.
2278 @param BltY Specifies the offset from the left and top edge
2279 of the image of the first character cell in the
2280 image.
2281 @param RowInfoArray If this is non-NULL on entry, then on exit, this
2282 will point to an allocated buffer containing
2283 row information and RowInfoArraySize will be
2284 updated to contain the number of elements.
2285 This array describes the characters which were at
2286 least partially drawn and the heights of the
2287 rows. It is the caller's responsibility to free
2288 this buffer.
2289 @param RowInfoArraySize If this is non-NULL on entry, then on exit it
2290 contains the number of elements in RowInfoArray.
2291 @param ColumnInfoArray If this is non-NULL, then on return it will be
2292 filled with the horizontal offset for each
2293 character in the string on the row where it is
2294 displayed. Non-printing characters will have
2295 the offset ~0. The caller is responsible to
2296 allocate a buffer large enough so that there
2297 is one entry for each character in the string,
2298 not including the null-terminator. It is possible
2299 when character display is normalized that some
2300 character cells overlap.
2301
2302 @retval EFI_SUCCESS The string was successfully rendered.
2303 @retval EFI_OUT_OF_RESOURCES Unable to allocate an output buffer for
2304 RowInfoArray or Blt.
2305 @retval EFI_INVALID_PARAMETER The Blt or PackageList was NULL.
2306 @retval EFI_INVALID_PARAMETER Flags were invalid combination.
2307 @retval EFI_NOT_FOUND The specified PackageList is not in the Database or the string id is not
2308 in the specified PackageList.
2309
2310 **/
2311 EFI_STATUS
2312 EFIAPI
HiiStringIdToImage(IN CONST EFI_HII_FONT_PROTOCOL * This,IN EFI_HII_OUT_FLAGS Flags,IN EFI_HII_HANDLE PackageList,IN EFI_STRING_ID StringId,IN CONST CHAR8 * Language,IN CONST EFI_FONT_DISPLAY_INFO * StringInfo OPTIONAL,IN OUT EFI_IMAGE_OUTPUT ** Blt,IN UINTN BltX,IN UINTN BltY,OUT EFI_HII_ROW_INFO ** RowInfoArray OPTIONAL,OUT UINTN * RowInfoArraySize OPTIONAL,OUT UINTN * ColumnInfoArray OPTIONAL)2313 HiiStringIdToImage (
2314 IN CONST EFI_HII_FONT_PROTOCOL *This,
2315 IN EFI_HII_OUT_FLAGS Flags,
2316 IN EFI_HII_HANDLE PackageList,
2317 IN EFI_STRING_ID StringId,
2318 IN CONST CHAR8* Language,
2319 IN CONST EFI_FONT_DISPLAY_INFO *StringInfo OPTIONAL,
2320 IN OUT EFI_IMAGE_OUTPUT **Blt,
2321 IN UINTN BltX,
2322 IN UINTN BltY,
2323 OUT EFI_HII_ROW_INFO **RowInfoArray OPTIONAL,
2324 OUT UINTN *RowInfoArraySize OPTIONAL,
2325 OUT UINTN *ColumnInfoArray OPTIONAL
2326 )
2327 {
2328 EFI_STATUS Status;
2329 HII_DATABASE_PRIVATE_DATA *Private;
2330 EFI_HII_STRING_PROTOCOL *HiiString;
2331 EFI_STRING String;
2332 UINTN StringSize;
2333 UINTN FontLen;
2334 UINTN NameSize;
2335 EFI_FONT_INFO *StringFontInfo;
2336 EFI_FONT_DISPLAY_INFO *NewStringInfo;
2337 CHAR8 TempSupportedLanguages;
2338 CHAR8 *SupportedLanguages;
2339 UINTN SupportedLanguagesSize;
2340 CHAR8 *CurrentLanguage;
2341 CHAR8 *BestLanguage;
2342
2343 if (This == NULL || PackageList == NULL || Blt == NULL || PackageList == NULL) {
2344 return EFI_INVALID_PARAMETER;
2345 }
2346
2347 if (!IsHiiHandleValid (PackageList)) {
2348 return EFI_NOT_FOUND;
2349 }
2350
2351 //
2352 // Initialize string pointers to be NULL
2353 //
2354 SupportedLanguages = NULL;
2355 CurrentLanguage = NULL;
2356 BestLanguage = NULL;
2357 String = NULL;
2358 StringFontInfo = NULL;
2359 NewStringInfo = NULL;
2360
2361 //
2362 // Get the string to be displayed.
2363 //
2364 Private = HII_FONT_DATABASE_PRIVATE_DATA_FROM_THIS (This);
2365 HiiString = &Private->HiiString;
2366
2367 //
2368 // Get the size of supported language.
2369 //
2370 SupportedLanguagesSize = 0;
2371 Status = HiiString->GetLanguages (
2372 HiiString,
2373 PackageList,
2374 &TempSupportedLanguages,
2375 &SupportedLanguagesSize
2376 );
2377 if (Status != EFI_BUFFER_TOO_SMALL) {
2378 return Status;
2379 }
2380
2381 SupportedLanguages = AllocatePool (SupportedLanguagesSize);
2382 if (SupportedLanguages == NULL) {
2383 return EFI_OUT_OF_RESOURCES;
2384 }
2385
2386 Status = HiiString->GetLanguages (
2387 HiiString,
2388 PackageList,
2389 SupportedLanguages,
2390 &SupportedLanguagesSize
2391 );
2392 if (EFI_ERROR (Status)) {
2393 goto Exit;
2394 }
2395
2396 if (Language == NULL) {
2397 Language = "";
2398 }
2399 GetEfiGlobalVariable2 (L"PlatformLang", (VOID**)&CurrentLanguage, NULL);
2400 BestLanguage = GetBestLanguage (
2401 SupportedLanguages,
2402 FALSE,
2403 Language,
2404 (CurrentLanguage == NULL) ? CurrentLanguage : "",
2405 (CHAR8 *) PcdGetPtr (PcdUefiVariableDefaultPlatformLang),
2406 NULL
2407 );
2408 if (BestLanguage == NULL) {
2409 Status = EFI_NOT_FOUND;
2410 goto Exit;
2411 }
2412
2413 StringSize = MAX_STRING_LENGTH;
2414 String = (EFI_STRING) AllocateZeroPool (StringSize);
2415 if (String == NULL) {
2416 Status = EFI_OUT_OF_RESOURCES;
2417 goto Exit;
2418 }
2419
2420 Status = HiiString->GetString (
2421 HiiString,
2422 BestLanguage,
2423 PackageList,
2424 StringId,
2425 String,
2426 &StringSize,
2427 &StringFontInfo
2428 );
2429 if (Status == EFI_BUFFER_TOO_SMALL) {
2430 FreePool (String);
2431 String = (EFI_STRING) AllocateZeroPool (StringSize);
2432 if (String == NULL) {
2433 Status = EFI_OUT_OF_RESOURCES;
2434 goto Exit;
2435 }
2436 Status = HiiString->GetString (
2437 HiiString,
2438 BestLanguage,
2439 PackageList,
2440 StringId,
2441 String,
2442 &StringSize,
2443 NULL
2444 );
2445 }
2446
2447 if (EFI_ERROR (Status)) {
2448 goto Exit;
2449 }
2450
2451 //
2452 // When StringInfo specifies that string will be output in the system default font and color,
2453 // use particular stringfontinfo described in string package instead if exists.
2454 // StringFontInfo equals NULL means system default font attaches with the string block.
2455 //
2456 if (StringFontInfo != NULL && IsSystemFontInfo (Private, (EFI_FONT_DISPLAY_INFO *) StringInfo, NULL, NULL)) {
2457 NameSize = StrSize (StringFontInfo->FontName);
2458 FontLen = sizeof (EFI_FONT_DISPLAY_INFO) - sizeof (CHAR16) + NameSize;
2459 NewStringInfo = AllocateZeroPool (FontLen);
2460 if (NewStringInfo == NULL) {
2461 Status = EFI_OUT_OF_RESOURCES;
2462 goto Exit;
2463 }
2464 NewStringInfo->FontInfoMask = EFI_FONT_INFO_SYS_FORE_COLOR | EFI_FONT_INFO_SYS_BACK_COLOR;
2465 NewStringInfo->FontInfo.FontStyle = StringFontInfo->FontStyle;
2466 NewStringInfo->FontInfo.FontSize = StringFontInfo->FontSize;
2467 StrCpyS (NewStringInfo->FontInfo.FontName, NameSize / sizeof (CHAR16), StringFontInfo->FontName);
2468
2469 Status = HiiStringToImage (
2470 This,
2471 Flags,
2472 String,
2473 NewStringInfo,
2474 Blt,
2475 BltX,
2476 BltY,
2477 RowInfoArray,
2478 RowInfoArraySize,
2479 ColumnInfoArray
2480 );
2481 goto Exit;
2482 }
2483
2484 Status = HiiStringToImage (
2485 This,
2486 Flags,
2487 String,
2488 StringInfo,
2489 Blt,
2490 BltX,
2491 BltY,
2492 RowInfoArray,
2493 RowInfoArraySize,
2494 ColumnInfoArray
2495 );
2496
2497 Exit:
2498 if (SupportedLanguages != NULL) {
2499 FreePool (SupportedLanguages);
2500 }
2501 if (CurrentLanguage != NULL) {
2502 FreePool (CurrentLanguage);
2503 }
2504 if (BestLanguage != NULL) {
2505 FreePool (BestLanguage);
2506 }
2507 if (String != NULL) {
2508 FreePool (String);
2509 }
2510 if (StringFontInfo != NULL) {
2511 FreePool (StringFontInfo);
2512 }
2513 if (NewStringInfo != NULL) {
2514 FreePool (NewStringInfo);
2515 }
2516
2517 return Status;
2518 }
2519
2520
2521 /**
2522 Convert the glyph for a single character into a bitmap.
2523
2524 @param This A pointer to the EFI_HII_FONT_PROTOCOL instance.
2525 @param Char Character to retrieve.
2526 @param StringInfo Points to the string font and color information
2527 or NULL if the string should use the default
2528 system font and color.
2529 @param Blt Thus must point to a NULL on entry. A buffer will
2530 be allocated to hold the output and the pointer
2531 updated on exit. It is the caller's
2532 responsibility to free this buffer.
2533 @param Baseline Number of pixels from the bottom of the bitmap to
2534 the baseline.
2535
2536 @retval EFI_SUCCESS Glyph bitmap created.
2537 @retval EFI_OUT_OF_RESOURCES Unable to allocate the output buffer Blt.
2538 @retval EFI_WARN_UNKNOWN_GLYPH The glyph was unknown and was replaced with the
2539 glyph for Unicode character 0xFFFD.
2540 @retval EFI_INVALID_PARAMETER Blt is NULL or *Blt is not NULL.
2541
2542 **/
2543 EFI_STATUS
2544 EFIAPI
HiiGetGlyph(IN CONST EFI_HII_FONT_PROTOCOL * This,IN CHAR16 Char,IN CONST EFI_FONT_DISPLAY_INFO * StringInfo,OUT EFI_IMAGE_OUTPUT ** Blt,OUT UINTN * Baseline OPTIONAL)2545 HiiGetGlyph (
2546 IN CONST EFI_HII_FONT_PROTOCOL *This,
2547 IN CHAR16 Char,
2548 IN CONST EFI_FONT_DISPLAY_INFO *StringInfo,
2549 OUT EFI_IMAGE_OUTPUT **Blt,
2550 OUT UINTN *Baseline OPTIONAL
2551 )
2552 {
2553 EFI_STATUS Status;
2554 HII_DATABASE_PRIVATE_DATA *Private;
2555 EFI_IMAGE_OUTPUT *Image;
2556 UINT8 *GlyphBuffer;
2557 EFI_FONT_DISPLAY_INFO *SystemDefault;
2558 EFI_FONT_DISPLAY_INFO *StringInfoOut;
2559 BOOLEAN Default;
2560 EFI_FONT_HANDLE FontHandle;
2561 EFI_STRING String;
2562 EFI_HII_GLYPH_INFO Cell;
2563 EFI_FONT_INFO *FontInfo;
2564 UINT8 Attributes;
2565 EFI_GRAPHICS_OUTPUT_BLT_PIXEL Foreground;
2566 EFI_GRAPHICS_OUTPUT_BLT_PIXEL Background;
2567 EFI_GRAPHICS_OUTPUT_BLT_PIXEL *BltBuffer;
2568 UINT16 BaseLine;
2569
2570 if (This == NULL || Blt == NULL || *Blt != NULL) {
2571 return EFI_INVALID_PARAMETER;
2572 }
2573
2574 Private = HII_FONT_DATABASE_PRIVATE_DATA_FROM_THIS (This);
2575
2576 Default = FALSE;
2577 Image = NULL;
2578 SystemDefault = NULL;
2579 FontHandle = NULL;
2580 String = NULL;
2581 GlyphBuffer = NULL;
2582 StringInfoOut = NULL;
2583 FontInfo = NULL;
2584
2585 ZeroMem (&Foreground, sizeof (EFI_GRAPHICS_OUTPUT_BLT_PIXEL));
2586 ZeroMem (&Background, sizeof (EFI_GRAPHICS_OUTPUT_BLT_PIXEL));
2587
2588 Default = IsSystemFontInfo (Private, (EFI_FONT_DISPLAY_INFO *) StringInfo, &SystemDefault, NULL);
2589
2590 if (!Default) {
2591 //
2592 // Find out a EFI_FONT_DISPLAY_INFO which could display the character in
2593 // the specified color and font.
2594 //
2595 String = (EFI_STRING) AllocateZeroPool (sizeof (CHAR16) * 2);
2596 if (String == NULL) {
2597 Status = EFI_OUT_OF_RESOURCES;
2598 goto Exit;
2599 }
2600 *String = Char;
2601 *(String + 1) = 0;
2602
2603 Status = HiiGetFontInfo (This, &FontHandle, StringInfo, &StringInfoOut, String);
2604 if (EFI_ERROR (Status)) {
2605 goto Exit;
2606 }
2607 ASSERT (StringInfoOut != NULL);
2608 FontInfo = &StringInfoOut->FontInfo;
2609 Foreground = StringInfoOut->ForegroundColor;
2610 Background = StringInfoOut->BackgroundColor;
2611 } else {
2612 ASSERT (SystemDefault != NULL);
2613 Foreground = SystemDefault->ForegroundColor;
2614 Background = SystemDefault->BackgroundColor;
2615 }
2616
2617 Status = GetGlyphBuffer (Private, Char, FontInfo, &GlyphBuffer, &Cell, &Attributes);
2618 if (EFI_ERROR (Status)) {
2619 goto Exit;
2620 }
2621
2622 Image = (EFI_IMAGE_OUTPUT *) AllocateZeroPool (sizeof (EFI_IMAGE_OUTPUT));
2623 if (Image == NULL) {
2624 Status = EFI_OUT_OF_RESOURCES;
2625 goto Exit;
2626 }
2627 Image->Width = Cell.Width;
2628 Image->Height = Cell.Height;
2629
2630 if (Image->Width * Image->Height > 0) {
2631 Image->Image.Bitmap = AllocateZeroPool (Image->Width * Image->Height * sizeof (EFI_GRAPHICS_OUTPUT_BLT_PIXEL));
2632 if (Image->Image.Bitmap == NULL) {
2633 FreePool (Image);
2634 Status = EFI_OUT_OF_RESOURCES;
2635 goto Exit;
2636 }
2637
2638 //
2639 // Set BaseLine to the char height.
2640 //
2641 BaseLine = (UINT16) (Cell.Height + Cell.OffsetY);
2642 //
2643 // Set BltBuffer to the position of Origin.
2644 //
2645 BltBuffer = Image->Image.Bitmap + (Cell.Height + Cell.OffsetY) * Image->Width - Cell.OffsetX;
2646 GlyphToImage (
2647 GlyphBuffer,
2648 Foreground,
2649 Background,
2650 Image->Width,
2651 BaseLine,
2652 Cell.Width + Cell.OffsetX,
2653 BaseLine - Cell.OffsetY,
2654 FALSE,
2655 &Cell,
2656 Attributes,
2657 &BltBuffer
2658 );
2659 }
2660
2661 *Blt = Image;
2662 if (Baseline != NULL) {
2663 *Baseline = Cell.OffsetY;
2664 }
2665
2666 Status = EFI_SUCCESS;
2667
2668 Exit:
2669
2670 if (Status == EFI_NOT_FOUND) {
2671 //
2672 // Glyph is unknown and replaced with the glyph for unicode character 0xFFFD
2673 //
2674 if (Char != REPLACE_UNKNOWN_GLYPH) {
2675 Status = HiiGetGlyph (This, REPLACE_UNKNOWN_GLYPH, StringInfo, Blt, Baseline);
2676 if (!EFI_ERROR (Status)) {
2677 Status = EFI_WARN_UNKNOWN_GLYPH;
2678 }
2679 } else {
2680 Status = EFI_WARN_UNKNOWN_GLYPH;
2681 }
2682 }
2683
2684 if (SystemDefault != NULL) {
2685 FreePool (SystemDefault);
2686 }
2687 if (StringInfoOut != NULL) {
2688 FreePool (StringInfoOut);
2689 }
2690 if (String != NULL) {
2691 FreePool (String);
2692 }
2693 if (GlyphBuffer != NULL) {
2694 FreePool (GlyphBuffer);
2695 }
2696
2697 return Status;
2698 }
2699
2700
2701 /**
2702 This function iterates through fonts which match the specified font, using
2703 the specified criteria. If String is non-NULL, then all of the characters in
2704 the string must exist in order for a candidate font to be returned.
2705
2706 @param This A pointer to the EFI_HII_FONT_PROTOCOL instance.
2707 @param FontHandle On entry, points to the font handle returned by a
2708 previous call to GetFontInfo() or NULL to start
2709 with the first font. On return, points to the
2710 returned font handle or points to NULL if there
2711 are no more matching fonts.
2712 @param StringInfoIn Upon entry, points to the font to return information
2713 about. If NULL, then the information about the system
2714 default font will be returned.
2715 @param StringInfoOut Upon return, contains the matching font's information.
2716 If NULL, then no information is returned. This buffer
2717 is allocated with a call to the Boot Service AllocatePool().
2718 It is the caller's responsibility to call the Boot
2719 Service FreePool() when the caller no longer requires
2720 the contents of StringInfoOut.
2721 @param String Points to the string which will be tested to
2722 determine if all characters are available. If
2723 NULL, then any font is acceptable.
2724
2725 @retval EFI_SUCCESS Matching font returned successfully.
2726 @retval EFI_NOT_FOUND No matching font was found.
2727 @retval EFI_INVALID_PARAMETER StringInfoIn->FontInfoMask is an invalid combination.
2728 @retval EFI_OUT_OF_RESOURCES There were insufficient resources to complete the
2729 request.
2730
2731 **/
2732 EFI_STATUS
2733 EFIAPI
HiiGetFontInfo(IN CONST EFI_HII_FONT_PROTOCOL * This,IN OUT EFI_FONT_HANDLE * FontHandle,IN CONST EFI_FONT_DISPLAY_INFO * StringInfoIn,OPTIONAL OUT EFI_FONT_DISPLAY_INFO ** StringInfoOut,IN CONST EFI_STRING String OPTIONAL)2734 HiiGetFontInfo (
2735 IN CONST EFI_HII_FONT_PROTOCOL *This,
2736 IN OUT EFI_FONT_HANDLE *FontHandle,
2737 IN CONST EFI_FONT_DISPLAY_INFO *StringInfoIn, OPTIONAL
2738 OUT EFI_FONT_DISPLAY_INFO **StringInfoOut,
2739 IN CONST EFI_STRING String OPTIONAL
2740 )
2741 {
2742 HII_DATABASE_PRIVATE_DATA *Private;
2743 EFI_STATUS Status;
2744 EFI_FONT_DISPLAY_INFO *SystemDefault;
2745 EFI_FONT_DISPLAY_INFO InfoOut;
2746 UINTN StringInfoOutLen;
2747 EFI_FONT_INFO *FontInfo;
2748 HII_GLOBAL_FONT_INFO *GlobalFont;
2749 EFI_STRING StringIn;
2750 EFI_FONT_HANDLE LocalFontHandle;
2751
2752 if (This == NULL) {
2753 return EFI_INVALID_PARAMETER;
2754 }
2755
2756 StringInfoOutLen = 0;
2757 FontInfo = NULL;
2758 SystemDefault = NULL;
2759 LocalFontHandle = NULL;
2760 if (FontHandle != NULL) {
2761 LocalFontHandle = *FontHandle;
2762 }
2763
2764 Private = HII_FONT_DATABASE_PRIVATE_DATA_FROM_THIS (This);
2765
2766 //
2767 // Already searched to the end of the whole list, return directly.
2768 //
2769 if (LocalFontHandle == &Private->FontInfoList) {
2770 LocalFontHandle = NULL;
2771 Status = EFI_NOT_FOUND;
2772 goto Exit;
2773 }
2774
2775 //
2776 // Get default system display info, if StringInfoIn points to
2777 // system display info, return it directly.
2778 //
2779 if (IsSystemFontInfo (Private, (EFI_FONT_DISPLAY_INFO *) StringInfoIn, &SystemDefault, &StringInfoOutLen)) {
2780 //
2781 // System font is the first node. When handle is not NULL, system font can not
2782 // be found any more.
2783 //
2784 if (LocalFontHandle == NULL) {
2785 if (StringInfoOut != NULL) {
2786 *StringInfoOut = AllocateCopyPool (StringInfoOutLen, SystemDefault);
2787 if (*StringInfoOut == NULL) {
2788 Status = EFI_OUT_OF_RESOURCES;
2789 LocalFontHandle = NULL;
2790 goto Exit;
2791 }
2792 }
2793
2794 LocalFontHandle = Private->FontInfoList.ForwardLink;
2795 Status = EFI_SUCCESS;
2796 goto Exit;
2797 } else {
2798 LocalFontHandle = NULL;
2799 Status = EFI_NOT_FOUND;
2800 goto Exit;
2801 }
2802 }
2803
2804 //
2805 // StringInfoIn must not be NULL if it is not system default font info.
2806 //
2807 ASSERT (StringInfoIn != NULL);
2808 //
2809 // Check the font information mask to make sure it is valid.
2810 //
2811 if (((StringInfoIn->FontInfoMask & (EFI_FONT_INFO_SYS_FONT | EFI_FONT_INFO_ANY_FONT)) ==
2812 (EFI_FONT_INFO_SYS_FONT | EFI_FONT_INFO_ANY_FONT)) ||
2813 ((StringInfoIn->FontInfoMask & (EFI_FONT_INFO_SYS_SIZE | EFI_FONT_INFO_ANY_SIZE)) ==
2814 (EFI_FONT_INFO_SYS_SIZE | EFI_FONT_INFO_ANY_SIZE)) ||
2815 ((StringInfoIn->FontInfoMask & (EFI_FONT_INFO_SYS_STYLE | EFI_FONT_INFO_ANY_STYLE)) ==
2816 (EFI_FONT_INFO_SYS_STYLE | EFI_FONT_INFO_ANY_STYLE)) ||
2817 ((StringInfoIn->FontInfoMask & (EFI_FONT_INFO_RESIZE | EFI_FONT_INFO_ANY_SIZE)) ==
2818 (EFI_FONT_INFO_RESIZE | EFI_FONT_INFO_ANY_SIZE)) ||
2819 ((StringInfoIn->FontInfoMask & (EFI_FONT_INFO_RESTYLE | EFI_FONT_INFO_ANY_STYLE)) ==
2820 (EFI_FONT_INFO_RESTYLE | EFI_FONT_INFO_ANY_STYLE))) {
2821 return EFI_INVALID_PARAMETER;
2822 }
2823
2824 //
2825 // Parse the font information mask to find a matching font.
2826 //
2827
2828 CopyMem (&InfoOut, (EFI_FONT_DISPLAY_INFO *) StringInfoIn, sizeof (EFI_FONT_DISPLAY_INFO));
2829
2830 if ((StringInfoIn->FontInfoMask & EFI_FONT_INFO_SYS_FONT) == EFI_FONT_INFO_SYS_FONT) {
2831 Status = SaveFontName (SystemDefault->FontInfo.FontName, &FontInfo);
2832 } else {
2833 Status = SaveFontName (((EFI_FONT_DISPLAY_INFO *) StringInfoIn)->FontInfo.FontName, &FontInfo);
2834 }
2835 if (EFI_ERROR (Status)) {
2836 goto Exit;
2837 }
2838
2839 if ((StringInfoIn->FontInfoMask & EFI_FONT_INFO_SYS_SIZE) == EFI_FONT_INFO_SYS_SIZE) {
2840 InfoOut.FontInfo.FontSize = SystemDefault->FontInfo.FontSize;
2841 }
2842 if ((StringInfoIn->FontInfoMask & EFI_FONT_INFO_SYS_STYLE) == EFI_FONT_INFO_SYS_STYLE) {
2843 InfoOut.FontInfo.FontStyle = SystemDefault->FontInfo.FontStyle;
2844 }
2845 if ((StringInfoIn->FontInfoMask & EFI_FONT_INFO_SYS_FORE_COLOR) == EFI_FONT_INFO_SYS_FORE_COLOR) {
2846 InfoOut.ForegroundColor = SystemDefault->ForegroundColor;
2847 }
2848 if ((StringInfoIn->FontInfoMask & EFI_FONT_INFO_SYS_BACK_COLOR) == EFI_FONT_INFO_SYS_BACK_COLOR) {
2849 InfoOut.BackgroundColor = SystemDefault->BackgroundColor;
2850 }
2851
2852 ASSERT (FontInfo != NULL);
2853 FontInfo->FontSize = InfoOut.FontInfo.FontSize;
2854 FontInfo->FontStyle = InfoOut.FontInfo.FontStyle;
2855
2856 if (IsFontInfoExisted (Private, FontInfo, &InfoOut.FontInfoMask, LocalFontHandle, &GlobalFont)) {
2857 //
2858 // Test to guarantee all characters are available in the found font.
2859 //
2860 if (String != NULL) {
2861 StringIn = String;
2862 while (*StringIn != 0) {
2863 Status = FindGlyphBlock (GlobalFont->FontPackage, *StringIn, NULL, NULL, NULL);
2864 if (EFI_ERROR (Status)) {
2865 LocalFontHandle = NULL;
2866 goto Exit;
2867 }
2868 StringIn++;
2869 }
2870 }
2871 //
2872 // Write to output parameter
2873 //
2874 if (StringInfoOut != NULL) {
2875 StringInfoOutLen = sizeof (EFI_FONT_DISPLAY_INFO) - sizeof (EFI_FONT_INFO) + GlobalFont->FontInfoSize;
2876 *StringInfoOut = (EFI_FONT_DISPLAY_INFO *) AllocateZeroPool (StringInfoOutLen);
2877 if (*StringInfoOut == NULL) {
2878 Status = EFI_OUT_OF_RESOURCES;
2879 LocalFontHandle = NULL;
2880 goto Exit;
2881 }
2882
2883 CopyMem (*StringInfoOut, &InfoOut, sizeof (EFI_FONT_DISPLAY_INFO));
2884 CopyMem (&(*StringInfoOut)->FontInfo, GlobalFont->FontInfo, GlobalFont->FontInfoSize);
2885 }
2886
2887 LocalFontHandle = GlobalFont->Entry.ForwardLink;
2888 Status = EFI_SUCCESS;
2889 goto Exit;
2890 }
2891
2892 Status = EFI_NOT_FOUND;
2893
2894 Exit:
2895
2896 if (FontHandle != NULL) {
2897 *FontHandle = LocalFontHandle;
2898 }
2899
2900 if (SystemDefault != NULL) {
2901 FreePool (SystemDefault);
2902 }
2903 if (FontInfo != NULL) {
2904 FreePool (FontInfo);
2905 }
2906 return Status;
2907 }
2908
2909
2910