-
Notifications
You must be signed in to change notification settings - Fork 8.5k
/
Copy pathmisc.cpp
1090 lines (960 loc) · 32.1 KB
/
misc.cpp
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
/*++
Copyright (c) Microsoft Corporation.
Licensed under the MIT license.
Module Name:
misc.c
Abstract:
This file implements the NT console server font routines.
Author:
Therese Stowell (thereses) 22-Jan-1991
Revision History:
--*/
#include "precomp.h"
#include <strsafe.h>
#include <ShellScalingAPI.h>
#pragma hdrstop
#if DBG
ULONG gDebugFlag = 0;
#endif
#define MAX_FONT_INFO_ALLOC (ULONG_MAX / sizeof(FONT_INFO))
#define FE_ABANDONFONT 0
#define FE_SKIPFONT 1
#define FE_FONTOK 2
#define TERMINAL_FACENAME L"Terminal"
/*
* TTPoints -- Initial font pixel heights for TT fonts
*/
SHORT TTPoints[] = {
5,
6,
7,
8,
10,
12,
14,
16,
18,
20,
24,
28,
36,
72
};
/*
* TTPointsDbcs -- Initial font pixel heights for TT fonts of DBCS.
* So, This list except odd point size because font width is (SBCS:DBCS != 1:2).
*/
SHORT TTPointsDbcs[] = {
6,
8,
10,
12,
14,
16,
18,
20,
24,
28,
36,
72
};
typedef struct _FONTENUMDATA
{
HDC hDC;
BOOL bFindFaces;
ULONG ulFE;
__field_ecount_opt(nTTPoints) PSHORT pTTPoints;
UINT nTTPoints;
} FONTENUMDATA, *PFONTENUMDATA;
PFACENODE
AddFaceNode(
__in_ecount(LF_FACESIZE) LPCWSTR ptsz)
{
PFACENODE pNew, *ppTmp;
size_t cch;
/*
* Is it already here?
*/
for (ppTmp = &gpFaceNames; *ppTmp; ppTmp = &((*ppTmp)->pNext))
{
if (0 == lstrcmp(((*ppTmp)->atch), ptsz))
{
// already there !
return *ppTmp;
}
}
cch = wcslen(ptsz);
pNew = (PFACENODE)HeapAlloc(GetProcessHeap(),
0,
sizeof(FACENODE) + ((cch + 1) * sizeof(WCHAR)));
if (pNew == nullptr)
{
return nullptr;
}
pNew->pNext = nullptr;
pNew->dwFlag = 0;
StringCchCopy(pNew->atch, cch + 1, ptsz);
*ppTmp = pNew;
return pNew;
}
VOID DestroyFaceNodes(VOID)
{
PFACENODE pNext, pTmp;
pTmp = gpFaceNames;
while (pTmp != nullptr)
{
pNext = pTmp->pNext;
HeapFree(GetProcessHeap(), 0, pTmp);
pTmp = pNext;
}
gpFaceNames = nullptr;
}
// TODO: Refactor into lib for use by both conhost and console.dll
// see http://osgvsowi/677457
UINT GetCurrentDPI(const HWND hWnd, const BOOL fReturnYDPI)
{
UINT dpiX = 0;
UINT dpiY = 0;
GetDpiForMonitor(MonitorFromWindow(hWnd, MONITOR_DEFAULTTONEAREST),
MDT_EFFECTIVE_DPI,
&dpiX,
&dpiY);
return (fReturnYDPI) ? dpiY : dpiX;
}
int GetDPIScaledPixelSize(const int px, const int iCurrentDPI)
{
return MulDiv(px, iCurrentDPI, 96);
}
int GetDPIYScaledPixelSize(const HWND hWnd, const int px)
{
return GetDPIScaledPixelSize(px, GetCurrentDPI(hWnd, TRUE));
}
int GetDPIXScaledPixelSize(const HWND hWnd, const int px)
{
return GetDPIScaledPixelSize(px, GetCurrentDPI(hWnd, FALSE));
}
// If we're running the V2 console, enumerate all of our TrueType fonts and rescale them as appropriate to match the
// current monitor's DPI. This function gets triggered when either the DPI of a single monitor changes, or when the
// properties dialog is moved between monitors of differing DPIs.
void RecreateFontHandles(const HWND hWnd)
{
if (gpStateInfo->fIsV2Console)
{
for (UINT iCurrFont = 0; iCurrFont < NumberOfFonts; iCurrFont++)
{
// if the current font is a TrueType font
if (TM_IS_TT_FONT(FontInfo[iCurrFont].Family))
{
LOGFONT lf = { 0 };
lf.lfWidth = GetDPIXScaledPixelSize(hWnd, FontInfo[iCurrFont].Size.X);
lf.lfHeight = GetDPIYScaledPixelSize(hWnd, FontInfo[iCurrFont].Size.Y);
lf.lfWeight = FontInfo[iCurrFont].Weight;
lf.lfCharSet = FontInfo[iCurrFont].tmCharSet;
// NOTE: not using what GDI gave us because some fonts don't quite roundtrip (e.g. MS Gothic and VL Gothic)
lf.lfPitchAndFamily = (FIXED_PITCH | FF_MODERN);
if (SUCCEEDED(StringCchCopy(lf.lfFaceName, ARRAYSIZE(lf.lfFaceName), FontInfo[iCurrFont].FaceName)))
{
auto hRescaledFont = CreateFontIndirect(&lf);
if (hRescaledFont != nullptr)
{
// Only replace the existing font if we've got a replacement. The worst that can happen is that
// we fail to create our scaled font, so the user sees an incorrectly-scaled font preview.
DeleteObject(FontInfo[iCurrFont].hFont);
FontInfo[iCurrFont].hFont = hRescaledFont;
}
}
}
}
}
}
// Routine Description:
// - Add the font described by the LOGFONT structure to the font table if
// it's not already there.
int AddFont(
ENUMLOGFONT* pelf,
NEWTEXTMETRIC* pntm,
int nFontType,
HDC hDC,
PFACENODE pFN)
{
HFONT hFont;
TEXTMETRIC tm;
ULONG nFont;
COORD SizeToShow, SizeActual, SizeWant, SizeOriginal;
BYTE tmFamily;
SIZE Size;
auto fCreatingBoldFont = FALSE;
auto ptszFace = pelf->elfLogFont.lfFaceName;
/* get font info */
SizeWant.X = (SHORT)pelf->elfLogFont.lfWidth;
SizeWant.Y = (SHORT)pelf->elfLogFont.lfHeight;
/* save original size request so that we can use it unmodified when doing DPI calculations */
SizeOriginal.X = (SHORT)pelf->elfLogFont.lfWidth;
SizeOriginal.Y = (SHORT)pelf->elfLogFont.lfHeight;
CreateBoldFont:
pelf->elfLogFont.lfQuality = DEFAULT_QUALITY;
hFont = CreateFontIndirect(&pelf->elfLogFont);
if (!hFont)
{
DBGFONTS((" REJECT font (can't create)\n"));
return FE_SKIPFONT; // same font in other sizes may still be suitable
}
DBGFONTS2((" hFont = %p\n", hFont));
SelectObject(hDC, hFont);
GetTextMetrics(hDC, &tm);
GetTextExtentPoint32(hDC, TEXT("0"), 1, &Size);
SizeActual.X = (SHORT)Size.cx;
SizeActual.Y = (SHORT)(tm.tmHeight + tm.tmExternalLeading);
DBGFONTS2((" actual size %d,%d\n", SizeActual.X, SizeActual.Y));
tmFamily = tm.tmPitchAndFamily;
if (TM_IS_TT_FONT(tmFamily) && (SizeWant.Y >= 0))
{
SizeToShow = SizeWant;
if (SizeWant.X == 0)
{
// Asking for zero width height gets a default aspect-ratio width.
// It's better to show that width rather than 0.
SizeToShow.X = SizeActual.X;
}
}
else
{
SizeToShow = SizeActual;
}
DBGFONTS2((" SizeToShow = (%d,%d), SizeActual = (%d,%d)\n",
SizeToShow.X,
SizeToShow.Y,
SizeActual.X,
SizeActual.Y));
/*
* NOW, determine whether this font entry has already been cached
* LATER : it may be possible to do this before creating the font, if
* we can trust the dimensions & other info from pntm.
* Sort by size:
* 1) By pixelheight (negative Y values)
* 2) By height (as shown)
* 3) By width (as shown)
*/
for (nFont = 0; nFont < NumberOfFonts; ++nFont)
{
COORD SizeShown;
if (FontInfo[nFont].hFont == nullptr)
{
DBGFONTS(("! Font %x has a NULL hFont\n", nFont));
continue;
}
if (FontInfo[nFont].SizeWant.X > 0)
{
SizeShown.X = FontInfo[nFont].SizeWant.X;
}
else
{
SizeShown.X = FontInfo[nFont].Size.X;
}
if (FontInfo[nFont].SizeWant.Y > 0)
{
// This is a font specified by cell height.
SizeShown.Y = FontInfo[nFont].SizeWant.Y;
}
else
{
SizeShown.Y = FontInfo[nFont].Size.Y;
if (FontInfo[nFont].SizeWant.Y < 0)
{
// This is a TT font specified by character height.
if (SizeWant.Y < 0 && SizeWant.Y > FontInfo[nFont].SizeWant.Y)
{
// Requested pixelheight is smaller than this one.
DBGFONTS(("INSERT %d pt at %x, before %d pt\n",
-SizeWant.Y,
nFont,
-FontInfo[nFont].SizeWant.Y));
break;
}
}
}
// Note that we're relying on pntm->tmWeight below because some fonts (e.g. Iosevka Extralight) show up as bold
// via GetTextMetrics. pntm->tmWeight doesn't have this issue. However, on the second pass through (see
// :CreateBoldFont) we should use what's in tm.tmWeight
if (SIZE_EQUAL(SizeShown, SizeToShow) &&
FontInfo[nFont].Family == tmFamily &&
FontInfo[nFont].Weight == ((fCreatingBoldFont) ? tm.tmWeight : pntm->tmWeight) &&
0 == lstrcmp(FontInfo[nFont].FaceName, ptszFace))
{
/*
* Already have this font
*/
DBGFONTS2((" Already have the font\n"));
DeleteObject(hFont);
return FE_FONTOK;
}
if ((SizeToShow.Y < SizeShown.Y) ||
(SizeToShow.Y == SizeShown.Y && SizeToShow.X < SizeShown.X))
{
/*
* This new font is smaller than nFont
*/
DBGFONTS(("INSERT at %x, SizeToShow = (%d,%d)\n", nFont, SizeToShow.X, SizeToShow.Y));
break;
}
}
/*
* If we have to grow our font table, do it.
*/
if (NumberOfFonts == FontInfoLength)
{
PFONT_INFO Temp = nullptr;
FontInfoLength += FONT_INCREMENT;
if (FontInfoLength < MAX_FONT_INFO_ALLOC)
{
Temp = (PFONT_INFO)HeapReAlloc(GetProcessHeap(),
0,
FontInfo,
sizeof(FONT_INFO) * FontInfoLength);
}
if (Temp == nullptr)
{
FontInfoLength -= FONT_INCREMENT;
return FE_ABANDONFONT; // no point enumerating more - no memory!
}
FontInfo = Temp;
}
/*
* The font we are adding should be inserted into the list, if it is
* smaller than the last one.
*/
if (nFont < NumberOfFonts)
{
RtlMoveMemory(&FontInfo[nFont + 1],
&FontInfo[nFont],
sizeof(FONT_INFO) * (NumberOfFonts - nFont));
}
/*
* If we're adding a truetype font for the V2 console, secretly swap out the current hFont with one that's scaled
* appropriately for DPI
*/
if (nFontType == TRUETYPE_FONTTYPE && gpStateInfo->fIsV2Console)
{
DeleteObject(hFont);
pelf->elfLogFont.lfWidth = GetDPIXScaledPixelSize(gpStateInfo->hWnd, SizeOriginal.X);
pelf->elfLogFont.lfHeight = GetDPIYScaledPixelSize(gpStateInfo->hWnd, SizeOriginal.Y);
hFont = CreateFontIndirect(&pelf->elfLogFont);
if (!hFont)
{
return FE_SKIPFONT;
}
}
/*
* Store the font info
*/
if (FontInfo[nFont].hFont != nullptr)
{
DeleteObject(FontInfo[nFont].hFont);
}
FontInfo[nFont].hFont = hFont;
FontInfo[nFont].Family = tmFamily;
FontInfo[nFont].Size = SizeActual;
if (TM_IS_TT_FONT(tmFamily))
{
FontInfo[nFont].SizeWant = SizeWant;
}
else
{
FontInfo[nFont].SizeWant.X = 0;
FontInfo[nFont].SizeWant.Y = 0;
}
FontInfo[nFont].Weight = tm.tmWeight;
FontInfo[nFont].FaceName = pFN->atch;
FontInfo[nFont].tmCharSet = tm.tmCharSet;
++NumberOfFonts;
/*
* If this is a true type font, create a bold version too.
*/
if (nFontType == TRUETYPE_FONTTYPE && !IS_BOLD(FontInfo[nFont].Weight))
{
pelf->elfLogFont.lfWeight = FW_BOLD;
pelf->elfLogFont.lfWidth = SizeOriginal.X;
pelf->elfLogFont.lfHeight = SizeOriginal.Y;
fCreatingBoldFont = TRUE;
goto CreateBoldFont;
}
return FE_FONTOK; // and continue enumeration
}
VOID InitializeFonts(VOID)
{
LOG_IF_FAILED(EnumerateFonts(EF_DEFFACE)); // Just the Default font
}
VOID DestroyFonts(VOID)
{
ULONG FontIndex;
if (FontInfo != nullptr)
{
for (FontIndex = 0; FontIndex < NumberOfFonts; FontIndex++)
{
DeleteObject(FontInfo[FontIndex].hFont);
}
HeapFree(GetProcessHeap(), 0, FontInfo);
FontInfo = nullptr;
NumberOfFonts = 0;
}
DestroyFaceNodes();
}
/*
* Returns bit combination
* FE_ABANDONFONT - do not continue enumerating this font
* FE_SKIPFONT - skip this font but keep enumerating
* FE_FONTOK - font was created and added to cache or already there
*
* Is called exactly once by GDI for each font in the system. This
* routine is used to store the FONT_INFO structure.
*/
int CALLBACK FontEnumForV2Console(ENUMLOGFONT* pelf, NEWTEXTMETRIC* pntm, int nFontType, LPARAM lParam)
{
FAIL_FAST_IF(!(ShouldAllowAllMonoTTFonts()));
UINT i;
LPCTSTR ptszFace = pelf->elfLogFont.lfFaceName;
PFACENODE pFN;
auto pfed = (PFONTENUMDATA)lParam;
DBGFONTS((" FontEnum \"%ls\" (%d,%d) weight 0x%lx(%d) %x -- %s\n",
ptszFace,
pelf->elfLogFont.lfWidth,
pelf->elfLogFont.lfHeight,
pelf->elfLogFont.lfWeight,
pelf->elfLogFont.lfWeight,
pelf->elfLogFont.lfCharSet,
pfed->bFindFaces ? "Finding Faces" : "Creating Fonts"));
// reject non-monospaced fonts
if (!(pelf->elfLogFont.lfPitchAndFamily & FIXED_PITCH))
{
return pfed->bFindFaces ? FE_SKIPFONT : FE_ABANDONFONT;
}
// reject non-modern or italic TT fonts
if ((nFontType == TRUETYPE_FONTTYPE) &&
(((pelf->elfLogFont.lfPitchAndFamily & 0xf0) != FF_MODERN) ||
pelf->elfLogFont.lfItalic))
{
DBGFONTS((" REJECT face (TT but not FF_MODERN)\n"));
return pfed->bFindFaces ? FE_SKIPFONT : FE_ABANDONFONT;
}
// reject non-TT fonts that aren't OEM
if ((nFontType != TRUETYPE_FONTTYPE) && !IS_DBCS_OR_OEM_CHARSET(pelf->elfLogFont.lfCharSet))
{
DBGFONTS((" REJECT face (not TT nor OEM)\n"));
return FE_SKIPFONT;
}
// reject fonts that are vertical
if (ptszFace[0] == TEXT('@'))
{
DBGFONTS((" REJECT face (not TT and TATEGAKI)\n"));
return pfed->bFindFaces ? FE_SKIPFONT : FE_ABANDONFONT;
}
// reject non-TT fonts that aren't terminal
if (g_fEastAsianSystem && (nFontType != TRUETYPE_FONTTYPE) && (0 != lstrcmp(ptszFace, TERMINAL_FACENAME)))
{
DBGFONTS((" REJECT face (not TT nor Terminal)\n"));
return pfed->bFindFaces ? FE_SKIPFONT : FE_ABANDONFONT;
}
// reject East Asian TT fonts that aren't East Asian charset.
if (g_fEastAsianSystem && (nFontType == TRUETYPE_FONTTYPE) && !IS_ANY_DBCS_CHARSET(pelf->elfLogFont.lfCharSet))
{
DBGFONTS((" REJECT face (East Asian charset, but not East Asian TT)\n"));
return FE_SKIPFONT; // should be enumerate next charset.
}
// reject East Asian TT fonts on non-East Asian systems
if (!g_fEastAsianSystem && (nFontType == TRUETYPE_FONTTYPE) && IS_ANY_DBCS_CHARSET(pelf->elfLogFont.lfCharSet))
{
DBGFONTS((" REJECT face (East Asian TT and not East Asian charset)\n"));
return FE_SKIPFONT; // should be enumerate next charset.
}
/*
* Add or find the facename
*/
pFN = AddFaceNode(ptszFace);
if (pFN == nullptr)
{
return FE_ABANDONFONT;
}
if (pfed->bFindFaces)
{
DWORD dwFontType;
if (nFontType == TRUETYPE_FONTTYPE)
{
DBGFONTS(("NEW TT FACE %ls\n", ptszFace));
dwFontType = EF_TTFONT;
}
else if (nFontType == RASTER_FONTTYPE)
{
DBGFONTS(("NEW OEM FACE %ls\n", ptszFace));
dwFontType = EF_OEMFONT;
}
else
{
dwFontType = 0;
}
pFN->dwFlag |= dwFontType | EF_NEW;
if (IS_ANY_DBCS_CHARSET(pelf->elfLogFont.lfCharSet))
{
pFN->dwFlag |= EF_DBCSFONT;
}
return FE_SKIPFONT;
}
/*
* Add the font to the table. If this is a true type font, add the
* sizes from the array. Otherwise, just add the size we got.
*/
if (nFontType & TRUETYPE_FONTTYPE)
{
for (i = 0; i < pfed->nTTPoints; i++)
{
pelf->elfLogFont.lfHeight = pfed->pTTPoints[i];
pelf->elfLogFont.lfWidth = 0;
pelf->elfLogFont.lfWeight = pntm->tmWeight;
pfed->ulFE |= AddFont(pelf, pntm, nFontType, pfed->hDC, pFN);
if (pfed->ulFE == FE_ABANDONFONT)
{
return FE_ABANDONFONT;
}
}
}
else
{
pfed->ulFE |= AddFont(pelf, pntm, nFontType, pfed->hDC, pFN);
if (pfed->ulFE == FE_ABANDONFONT)
{
return FE_ABANDONFONT;
}
}
return FE_FONTOK; // and continue enumeration
}
/*
* Returns bit combination
* FE_ABANDONFONT - do not continue enumerating this font
* FE_SKIPFONT - skip this font but keep enumerating
* FE_FONTOK - font was created and added to cache or already there
*
* Is called exactly once by GDI for each font in the system. This
* routine is used to store the FONT_INFO structure.
*/
int
CALLBACK
FontEnum(
ENUMLOGFONT* pelf,
NEWTEXTMETRIC* pntm,
int nFontType,
LPARAM lParam)
{
UINT i;
LPCTSTR ptszFace = pelf->elfLogFont.lfFaceName;
PFACENODE pFN;
auto pfed = (PFONTENUMDATA)lParam;
DBGFONTS((" FontEnum \"%ls\" (%d,%d) weight 0x%lx(%d) %x -- %s\n",
ptszFace,
pelf->elfLogFont.lfWidth,
pelf->elfLogFont.lfHeight,
pelf->elfLogFont.lfWeight,
pelf->elfLogFont.lfWeight,
pelf->elfLogFont.lfCharSet,
pfed->bFindFaces ? "Finding Faces" : "Creating Fonts"));
//
// reject variable width and italic fonts, also tt fonts with neg ac
//
if (
!(pelf->elfLogFont.lfPitchAndFamily & FIXED_PITCH) ||
(pelf->elfLogFont.lfItalic) ||
!(pntm->ntmFlags & NTM_NONNEGATIVE_AC))
{
if (!IsAvailableTTFont(ptszFace))
{
DBGFONTS((" REJECT face (dbcs, variable pitch, italic, or neg a&c)\n"));
return pfed->bFindFaces ? FE_SKIPFONT : FE_ABANDONFONT;
}
}
/*
* reject TT fonts for whom family is not modern, that is do not use
* FF_DONTCARE // may be surprised unpleasantly
* FF_DECORATIVE // likely to be symbol fonts
* FF_SCRIPT // cursive, inappropriate for console
* FF_SWISS OR FF_ROMAN // variable pitch
*/
if ((nFontType == TRUETYPE_FONTTYPE) &&
((pelf->elfLogFont.lfPitchAndFamily & 0xf0) != FF_MODERN))
{
DBGFONTS((" REJECT face (TT but not FF_MODERN)\n"));
return pfed->bFindFaces ? FE_SKIPFONT : FE_ABANDONFONT;
}
/*
* reject non-TT fonts that aren't OEM
*/
if ((nFontType != TRUETYPE_FONTTYPE) &&
(!g_fEastAsianSystem || !IS_ANY_DBCS_CHARSET(pelf->elfLogFont.lfCharSet)) &&
(pelf->elfLogFont.lfCharSet != OEM_CHARSET))
{
DBGFONTS((" REJECT face (not TT nor OEM)\n"));
return FE_SKIPFONT;
}
/*
* reject non-TT fonts that are vertical font
*/
if ((nFontType != TRUETYPE_FONTTYPE) &&
(ptszFace[0] == TEXT('@')))
{
DBGFONTS((" REJECT face (not TT and TATEGAKI)\n"));
return pfed->bFindFaces ? FE_SKIPFONT : FE_ABANDONFONT;
}
/*
* reject non-TT fonts that aren't Terminal
*/
if (g_fEastAsianSystem && (nFontType != TRUETYPE_FONTTYPE) &&
(0 != lstrcmp(ptszFace, TERMINAL_FACENAME)))
{
DBGFONTS((" REJECT face (not TT nor Terminal)\n"));
return pfed->bFindFaces ? FE_SKIPFONT : FE_ABANDONFONT;
}
/*
* reject East Asian TT fonts that aren't East Asian charset.
*/
if (IsAvailableTTFont(ptszFace) &&
!IS_ANY_DBCS_CHARSET(pelf->elfLogFont.lfCharSet) &&
!IsAvailableTTFontCP(ptszFace, 0))
{
DBGFONTS((" REJECT face (East Asian TT and not East Asian charset)\n"));
return FE_SKIPFONT; // should be enumerate next charset.
}
/*
* Add or find the facename
*/
pFN = AddFaceNode(ptszFace);
if (pFN == nullptr)
{
return FE_ABANDONFONT;
}
if (pfed->bFindFaces)
{
DWORD dwFontType;
if (nFontType == TRUETYPE_FONTTYPE)
{
DBGFONTS(("NEW TT FACE %ls\n", ptszFace));
dwFontType = EF_TTFONT;
}
else if (nFontType == RASTER_FONTTYPE)
{
DBGFONTS(("NEW OEM FACE %ls\n", ptszFace));
dwFontType = EF_OEMFONT;
}
else
{
dwFontType = 0;
}
pFN->dwFlag |= dwFontType | EF_NEW;
if (IS_ANY_DBCS_CHARSET(pelf->elfLogFont.lfCharSet))
{
pFN->dwFlag |= EF_DBCSFONT;
}
return FE_SKIPFONT;
}
if (IS_BOLD(pelf->elfLogFont.lfWeight))
{
DBGFONTS2((" A bold font (weight %d)\n", pelf->elfLogFont.lfWeight));
// return FE_SKIPFONT;
}
/*
* Add the font to the table. If this is a true type font, add the
* sizes from the array. Otherwise, just add the size we got.
*/
if (nFontType & TRUETYPE_FONTTYPE)
{
for (i = 0; i < pfed->nTTPoints; i++)
{
pelf->elfLogFont.lfHeight = pfed->pTTPoints[i];
pelf->elfLogFont.lfWidth = 0;
pelf->elfLogFont.lfWeight = 400;
pfed->ulFE |= AddFont(pelf, pntm, nFontType, pfed->hDC, pFN);
if (pfed->ulFE == FE_ABANDONFONT)
{
return FE_ABANDONFONT;
}
}
}
else
{
pfed->ulFE |= AddFont(pelf, pntm, nFontType, pfed->hDC, pFN);
if (pfed->ulFE == FE_ABANDONFONT)
{
return FE_ABANDONFONT;
}
}
return FE_FONTOK; // and continue enumeration
}
BOOL DoFontEnum(
__in_opt HDC hDC,
__in_ecount_opt(LF_FACESIZE) LPTSTR ptszFace,
__in_ecount_opt(nTTPoints) PSHORT pTTPoints,
__in UINT nTTPoints)
{
auto bDeleteDC = FALSE;
FONTENUMDATA fed;
LOGFONT LogFont;
DBGFONTS(("DoFontEnum \"%ls\"\n", ptszFace));
if (hDC == nullptr)
{
hDC = CreateCompatibleDC(nullptr);
bDeleteDC = TRUE;
}
fed.hDC = hDC;
fed.bFindFaces = (ptszFace == nullptr);
fed.ulFE = 0;
fed.pTTPoints = pTTPoints;
fed.nTTPoints = nTTPoints;
RtlZeroMemory(&LogFont, sizeof(LOGFONT));
LogFont.lfCharSet = DEFAULT_CHARSET;
if (ptszFace != nullptr)
{
StringCchCopy(LogFont.lfFaceName, LF_FACESIZE, ptszFace);
if (NumberOfFonts == 0 && // We've yet to enumerate fonts
g_fEastAsianSystem && // And we're currently using a CJK codepage
!IS_ANY_DBCS_CHARSET(CodePageToCharSet(OEMCP)) && // But the system codepage *isn't* CJK
0 == lstrcmp(ptszFace, TERMINAL_FACENAME))
{ // and we're looking at the raster font
// In this specific scenario, the raster font will only be enumerated if we ask for OEM_CHARSET rather than
// a CJK charset
LogFont.lfCharSet = OEM_CHARSET;
}
}
/*
* EnumFontFamiliesEx function enumerates one font in every face in every
* character set.
*/
EnumFontFamiliesEx(hDC, &LogFont, (FONTENUMPROC)((ShouldAllowAllMonoTTFonts()) ? FontEnumForV2Console : FontEnum), (LPARAM)&fed, 0);
if (bDeleteDC)
{
DeleteDC(hDC);
}
return (fed.ulFE & FE_FONTOK) != 0;
}
VOID RemoveFace(__in_ecount(LF_FACESIZE) LPCTSTR ptszFace)
{
DWORD i;
auto nToRemove = 0;
DBGFONTS(("RemoveFace %ls\n", ptszFace));
//
// Delete & Remove fonts with Face Name == ptszFace
//
for (i = 0; i < NumberOfFonts; i++)
{
if (0 == lstrcmp(FontInfo[i].FaceName, ptszFace))
{
auto bDeleted = DeleteObject(FontInfo[i].hFont);
DBGFONTS(("RemoveFace: hFont %p was %sdeleted\n",
FontInfo[i].hFont,
bDeleted ? "" : "NOT "));
bDeleted; // to fix x86 build complaining
FontInfo[i].hFont = nullptr;
nToRemove++;
}
else if (nToRemove > 0)
{
/*
* Shuffle from FontInfo[i] down nToRemove slots.
*/
RtlMoveMemory(&FontInfo[i - nToRemove],
&FontInfo[i],
sizeof(FONT_INFO) * (NumberOfFonts - i));
NumberOfFonts -= nToRemove;
i -= nToRemove;
nToRemove = 0;
}
}
NumberOfFonts -= nToRemove;
}
// Given a desired SHORT size, search pTTPoints to determine if size is in the list.
static bool IsSizePresentInList(const __in SHORT sSizeDesired, __in_ecount(nTTPoints) PSHORT pTTPoints, __in UINT nTTPoints)
{
auto fSizePresent = false;
for (UINT i = 0; i < nTTPoints; i++)
{
if (pTTPoints[i] == sSizeDesired)
{
fSizePresent = true;
break;
}
}
return fSizePresent;
}
// Given a face name, determine if the size provided is custom (i.e. not on the hard-coded list of sizes). Note that the
// list of sizes we use varies depending on the codepage being used
bool IsFontSizeCustom(__in PCWSTR pszFaceName, const __in SHORT sSize)
{
bool fUsingCustomFontSize;
if (g_fEastAsianSystem && !IsAvailableTTFontCP(pszFaceName, 0))
{
fUsingCustomFontSize = !IsSizePresentInList(sSize, TTPointsDbcs, ARRAYSIZE(TTPointsDbcs));
}
else
{
fUsingCustomFontSize = !IsSizePresentInList(sSize, TTPoints, ARRAYSIZE(TTPoints));
}
return fUsingCustomFontSize;
}
// Determines if the currently-selected font is using a custom size
static bool IsCurrentFontSizeCustom()
{
return IsFontSizeCustom(gpStateInfo->FaceName, gpStateInfo->FontSize.Y);
}
// Given a size, iterate through all TT fonts and load them in the provided size (only used for custom (non-hard-coded)
// font sizes)
void CreateSizeForAllTTFonts(const __in SHORT sSize)
{
auto hDC = CreateCompatibleDC(nullptr);
// for each font face
for (auto pFN = gpFaceNames; pFN; pFN = pFN->pNext)
{
if (pFN->dwFlag & EF_TTFONT)
{
// if it's a TT font, load the supplied size
DoFontEnum(hDC, pFN->atch, (PSHORT)&sSize, 1);
}
}
}
[[nodiscard]] NTSTATUS
EnumerateFonts(
DWORD Flags)
{
TEXTMETRIC tm;
HDC hDC;
PFACENODE pFN;
DWORD FontIndex;
DWORD dwFontType = 0;
DBGFONTS(("EnumerateFonts %lx\n", Flags));
dwFontType = (EF_TTFONT | EF_OEMFONT | EF_DEFFACE) & Flags;
if (FontInfo == nullptr)
{
//
// allocate memory for the font array
//
NumberOfFonts = 0;
FontInfo = (PFONT_INFO)HeapAlloc(GetProcessHeap(), 0, sizeof(FONT_INFO) * INITIAL_FONTS);
if (FontInfo == nullptr)
{
return STATUS_NO_MEMORY;
}
FontInfoLength = INITIAL_FONTS;
}
hDC = CreateCompatibleDC(nullptr);
if (Flags & EF_DEFFACE)
{
SelectObject(hDC, GetStockObject(OEM_FIXED_FONT));
GetTextMetrics(hDC, &tm);
GetTextFace(hDC, LF_FACESIZE, DefaultFaceName);
DefaultFontSize.X = (SHORT)(tm.tmMaxCharWidth);
DefaultFontSize.Y = (SHORT)(tm.tmHeight + tm.tmExternalLeading);
DefaultFontFamily = tm.tmPitchAndFamily;
if (IS_ANY_DBCS_CHARSET(tm.tmCharSet))
{
DefaultFontSize.X /= 2;
}
DBGFONTS(("Default (OEM) Font %ls (%d,%d) CharSet 0x%02X\n", DefaultFaceName, DefaultFontSize.X, DefaultFontSize.Y, tm.tmCharSet));
// Make sure we are going to enumerate the OEM face.
pFN = AddFaceNode(DefaultFaceName);
if (pFN != nullptr)
{
pFN->dwFlag |= EF_DEFFACE | EF_OEMFONT;
}
}
if (gbEnumerateFaces)
{
/*
* Set the EF_OLD bit and clear the EF_NEW bit
* for all previously available faces
*/
for (pFN = gpFaceNames; pFN; pFN = pFN->pNext)
{
pFN->dwFlag |= EF_OLD;
pFN->dwFlag &= ~EF_NEW;
}
//
// Use DoFontEnum to get the names of all the suitable Faces
// All facenames found will be put in gpFaceNames with
// the EF_NEW bit set.
//
DoFontEnum(hDC, nullptr, TTPoints, 1);