[edk2-devel] [PATCH v2 1/1] MdeModulePkg/Console: Improve encoding of box drawing characters
Caden Kline
cadenkline9 at gmail.com
Mon Aug 23 02:49:14 UTC 2021
I think '\' '/' works just as well if not better than '+' for the purpose
they serve. I think that part of the table is an example of poor man's
ascii not of all of it.
I'm not sure how to bring the other threads into this one. So here are the
links to v3
https://edk2.groups.io/g/devel/message/79691
https://edk2.groups.io/g/devel/message/79692
On Tue, Aug 17, 2021 at 9:50 PM Gao, Zhichao <zhichao.gao at intel.com> wrote:
> Hi Caden/Nate,
>
> This patch aims to make the terminal output character set to be expected
> as
> https://github.com/tianocore/tianocore.github.io/wiki/Tasks-Terminal-driver-improvements
> .
> It is better to add this info to the commit message. Because of the commit
> message length limitation, I would suggest to file a Bugzilla and attach
> above link.
>
> For the poor man's line drawing, our code is using '\' and '/' instead of
> '+'. Should we change it to match the table?
>
> Caden,
>
> The patch thru email is not separated for every lines, it mixed up. So it
> is hard to give comment thru email. So I give my comments thru
> https://github.com/ZhichaoGao/edk2/commit/b9a47188d7228a47897413ca73c265143edfec29#diff-e3ef4106fc8f77b7d4ac5679f4104281cbf9a0322606703f2a6be152960c1125R300
> .
>
> Thanks,
> Zhichao
>
>
>
> > -----Original Message-----
> > From: devel at edk2.groups.io <devel at edk2.groups.io> On Behalf Of Caden
> > Kline
> > Sent: Friday, August 13, 2021 8:00 AM
> > To: devel at edk2.groups.io
> > Cc: Wang, Jian J <jian.j.wang at intel.com>; Wu, Hao A <hao.a.wu at intel.com
> >;
> > Gao, Zhichao <zhichao.gao at intel.com>; Ni, Ray <ray.ni at intel.com>;
> > Desimone, Nathaniel L <nathaniel.l.desimone at intel.com>
> > Subject: [edk2-devel] [PATCH v2 1/1] MdeModulePkg/Console: Improve
> > encoding of box drawing characters
> >
> > Improved encoding of box drawing characters for different terminal types.
> > This includes Dec special graphics mode and more utf8.
> >
> > Cc: Jian J Wang <jian.j.wang at intel.com>
> > Cc: Hao A Wu <hao.a.wu at intel.com>
> > Cc: Zhichao Gao <zhichao.gao at intel.com>
> > Cc: Ray Ni <ray.ni at intel.com>
> > Signed-off-by: Caden Kline <cadenkline9 at gmail.com>
> > Reviewed-by: Nate DeSimone <nathaniel.l.desimone at intel.com>
> > ---
> >
> > Notes:
> > v2:
> > - code style changes to fix indents and comments [Hao A Wu]
> >
> > MdeModulePkg/Universal/Console/TerminalDxe/Terminal.h | 26 +-
> > MdeModulePkg/Universal/Console/TerminalDxe/Ansi.c | 2 +-
> > MdeModulePkg/Universal/Console/TerminalDxe/TerminalConOut.c | 321
> > +++++++++++++++-----
> > 3 files changed, 271 insertions(+), 78 deletions(-)
> >
> > diff --git a/MdeModulePkg/Universal/Console/TerminalDxe/Terminal.h
> > b/MdeModulePkg/Universal/Console/TerminalDxe/Terminal.h
> > index 360e58e84743..1eab439531dc 100644
> > --- a/MdeModulePkg/Universal/Console/TerminalDxe/Terminal.h
> > +++ b/MdeModulePkg/Universal/Console/TerminalDxe/Terminal.h
> > @@ -122,7 +122,12 @@ typedef struct {
> > EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL SimpleInputEx; LIST_ENTRY
> > NotifyList; EFI_EVENT
> KeyNotifyProcessEvent;+ BOOLEAN
> > DecSpecialGraphicsMode; } TERMINAL_DEV;+//+// This the length the
> > escape sequences for entering and exiting Dec Special Graphics
> > Mode+//+#define LENGTH_DEC_ESCAPE 0x03 #define
> > INPUT_STATE_DEFAULT 0x00 #define INPUT_STATE_ESC
> > 0x01@@ -169,6 +174,7 @@ typedef struct {
> > UINT16 Unicode; CHAR8 PcAnsi; CHAR8 Ascii;+ CHAR8
> > DecSpecialGraphics; } UNICODE_TO_CHAR; //@@ -1367,20 +1373,22 @@
> > Utf8ToUnicode (
> > /** Detects if a Unicode char is for Box Drawing text graphics. -
> @param
> > Graphic Unicode char to test.- @param PcAnsi Optional
> pointer to
> > return PCANSI equivalent of- Graphic.- @param
> Ascii Optional
> > pointer to return ASCII equivalent of- Graphic.--
> @retval TRUE
> > If Graphic is a supported Unicode Box Drawing character.+ @param
> Graphic
> > Unicode char to test.+ @param PcAnsi Optional pointer to
> return
> > PCANSI equivalent of+ Graphic.+ @param
> Ascii
> > Optional pointer to return ASCII equivalent of+
> Graphic.+
> > @param DecSpecialGraphics Optional pointer to return Dec Special
> Graphics
> > equivalent of+ Graphic.+ @retval TRUE
> If Graphic is a
> > supported Unicode Box Drawing character. **/ BOOLEAN
> > TerminalIsValidTextGraphics ( IN CHAR16 Graphic,- OUT CHAR8
> *PcAnsi,
> > OPTIONAL- OUT CHAR8 *Ascii OPTIONAL+ OUT CHAR8 *PcAnsi,
> > OPTIONAL+ OUT CHAR8 *Ascii, OPTIONAL+ OUT CHAR8
> > *DecSpecialGraphics OPTIONAL ); /**diff --git
> > a/MdeModulePkg/Universal/Console/TerminalDxe/Ansi.c
> > b/MdeModulePkg/Universal/Console/TerminalDxe/Ansi.c
> > index f117d90b9de3..5ae5a4f0212e 100644
> > --- a/MdeModulePkg/Universal/Console/TerminalDxe/Ansi.c
> > +++ b/MdeModulePkg/Universal/Console/TerminalDxe/Ansi.c
> > @@ -63,7 +63,7 @@ AnsiTestString (
> > if ( !(TerminalIsValidAscii (*WString) ||
> TerminalIsValidEfiCntlChar
> > (*WString) ||- TerminalIsValidTextGraphics (*WString,
> &GraphicChar,
> > NULL) )) {+ TerminalIsValidTextGraphics (*WString, &GraphicChar,
> NULL,
> > NULL) )) { return EFI_UNSUPPORTED; }diff --git
> > a/MdeModulePkg/Universal/Console/TerminalDxe/TerminalConOut.c
> > b/MdeModulePkg/Universal/Console/TerminalDxe/TerminalConOut.c
> > index aae470e9562c..6da1fa64a2f3 100644
> > --- a/MdeModulePkg/Universal/Console/TerminalDxe/TerminalConOut.c
> > +++ b/MdeModulePkg/Universal/Console/TerminalDxe/TerminalConOut.c
> > @@ -16,61 +16,59 @@ SPDX-License-Identifier: BSD-2-Clause-Patent
> > // // UNICODE_TO_CHAR UnicodeToPcAnsiOrAscii[] = {-
> > { BOXDRAW_HORIZONTAL, 0xc4, L'-' },- { BOXDRAW_VERTICAL,
> > 0xb3, L'|' },- { BOXDRAW_DOWN_RIGHT, 0xda, L'/' },-
> > { BOXDRAW_DOWN_LEFT, 0xbf, L'\\' },- {
> BOXDRAW_UP_RIGHT,
> > 0xc0, L'\\' },- { BOXDRAW_UP_LEFT, 0xd9, L'/' },-
> > { BOXDRAW_VERTICAL_RIGHT, 0xc3, L'|' },-
> > { BOXDRAW_VERTICAL_LEFT, 0xb4, L'|' },-
> > { BOXDRAW_DOWN_HORIZONTAL, 0xc2, L'+' },-
> > { BOXDRAW_UP_HORIZONTAL, 0xc1, L'+' },-
> > { BOXDRAW_VERTICAL_HORIZONTAL, 0xc5, L'+' },-
> > { BOXDRAW_DOUBLE_HORIZONTAL, 0xcd, L'-' },-
> > { BOXDRAW_DOUBLE_VERTICAL, 0xba, L'|' },-
> > { BOXDRAW_DOWN_RIGHT_DOUBLE, 0xd5, L'/' },-
> > { BOXDRAW_DOWN_DOUBLE_RIGHT, 0xd6, L'/' },-
> > { BOXDRAW_DOUBLE_DOWN_RIGHT, 0xc9, L'/' },-
> > { BOXDRAW_DOWN_LEFT_DOUBLE, 0xb8, L'\\' },-
> > { BOXDRAW_DOWN_DOUBLE_LEFT, 0xb7, L'\\' },-
> > { BOXDRAW_DOUBLE_DOWN_LEFT, 0xbb, L'\\' },-
> > { BOXDRAW_UP_RIGHT_DOUBLE, 0xd4, L'\\' },-
> > { BOXDRAW_UP_DOUBLE_RIGHT, 0xd3, L'\\' },-
> > { BOXDRAW_DOUBLE_UP_RIGHT, 0xc8, L'\\' },-
> > { BOXDRAW_UP_LEFT_DOUBLE, 0xbe, L'/' },-
> > { BOXDRAW_UP_DOUBLE_LEFT, 0xbd, L'/' },-
> > { BOXDRAW_DOUBLE_UP_LEFT, 0xbc, L'/' },-
> > { BOXDRAW_VERTICAL_RIGHT_DOUBLE, 0xc6, L'|' },-
> > { BOXDRAW_VERTICAL_DOUBLE_RIGHT, 0xc7, L'|' },-
> > { BOXDRAW_DOUBLE_VERTICAL_RIGHT, 0xcc, L'|' },-
> > { BOXDRAW_VERTICAL_LEFT_DOUBLE, 0xb5, L'|' },-
> > { BOXDRAW_VERTICAL_DOUBLE_LEFT, 0xb6, L'|' },-
> > { BOXDRAW_DOUBLE_VERTICAL_LEFT, 0xb9, L'|' },-
> > { BOXDRAW_DOWN_HORIZONTAL_DOUBLE, 0xd1, L'+' },-
> > { BOXDRAW_DOWN_DOUBLE_HORIZONTAL, 0xd2, L'+' },-
> > { BOXDRAW_DOUBLE_DOWN_HORIZONTAL, 0xcb, L'+' },-
> > { BOXDRAW_UP_HORIZONTAL_DOUBLE, 0xcf, L'+' },-
> > { BOXDRAW_UP_DOUBLE_HORIZONTAL, 0xd0, L'+' },-
> > { BOXDRAW_DOUBLE_UP_HORIZONTAL, 0xca, L'+' },-
> > { BOXDRAW_VERTICAL_HORIZONTAL_DOUBLE, 0xd8, L'+' },-
> > { BOXDRAW_VERTICAL_DOUBLE_HORIZONTAL, 0xd7, L'+' },-
> > { BOXDRAW_DOUBLE_VERTICAL_HORIZONTAL, 0xce, L'+' },+
> > { BOXDRAW_HORIZONTAL, 0xc4, L'-', 0x71 },+ {
> BOXDRAW_VERTICAL,
> > 0xb3, L'|', 0x78 },+ { BOXDRAW_DOWN_RIGHT, 0xda,
> L'/', 0x6c },+
> > { BOXDRAW_DOWN_LEFT, 0xbf, L'\\', 0x6b },+
> > { BOXDRAW_UP_RIGHT, 0xc0, L'\\', 0x6d },+ {
> BOXDRAW_UP_LEFT,
> > 0xd9, L'/', 0x6a },+ { BOXDRAW_VERTICAL_RIGHT, 0xc3,
> L'|', 0x74 },+
> > { BOXDRAW_VERTICAL_LEFT, 0xb4, L'|', 0x75 },+
> > { BOXDRAW_DOWN_HORIZONTAL, 0xc2, L'+', 0x77 },+
> > { BOXDRAW_UP_HORIZONTAL, 0xc1, L'+', 0x76 },+
> > { BOXDRAW_VERTICAL_HORIZONTAL, 0xc5, L'+', 0x6e },+
> > { BOXDRAW_DOUBLE_HORIZONTAL, 0xcd, L'-', 0x71 },+
> > { BOXDRAW_DOUBLE_VERTICAL, 0xba, L'|', 0x78 },+
> > { BOXDRAW_DOWN_RIGHT_DOUBLE, 0xd5, L'/', 0x6c },+
> > { BOXDRAW_DOWN_DOUBLE_RIGHT, 0xd6, L'/', 0x6c },+
> > { BOXDRAW_DOUBLE_DOWN_RIGHT, 0xc9, L'/', 0x6c },+
> > { BOXDRAW_DOWN_LEFT_DOUBLE, 0xb8, L'\\', 0x6b },+
> > { BOXDRAW_DOWN_DOUBLE_LEFT, 0xb7, L'\\', 0x6b },+
> > { BOXDRAW_DOUBLE_DOWN_LEFT, 0xbb, L'\\', 0x6b },+
> > { BOXDRAW_UP_RIGHT_DOUBLE, 0xd4, L'\\', 0x6d },+
> > { BOXDRAW_UP_DOUBLE_RIGHT, 0xd3, L'\\', 0x6d },+
> > { BOXDRAW_DOUBLE_UP_RIGHT, 0xc8, L'\\', 0x6d },+
> > { BOXDRAW_UP_LEFT_DOUBLE, 0xbe, L'/', 0x6a },+
> > { BOXDRAW_UP_DOUBLE_LEFT, 0xbd, L'/', 0x6a },+
> > { BOXDRAW_DOUBLE_UP_LEFT, 0xbc, L'/', 0x6a },+
> > { BOXDRAW_VERTICAL_RIGHT_DOUBLE, 0xc6, L'|', 0x74 },+
> > { BOXDRAW_VERTICAL_DOUBLE_RIGHT, 0xc7, L'|', 0x74 },+
> > { BOXDRAW_DOUBLE_VERTICAL_RIGHT, 0xcc, L'|', 0x74 },+
> > { BOXDRAW_VERTICAL_LEFT_DOUBLE, 0xb5, L'|', 0x75 },+
> > { BOXDRAW_VERTICAL_DOUBLE_LEFT, 0xb6, L'|', 0x75 },+
> > { BOXDRAW_DOUBLE_VERTICAL_LEFT, 0xb9, L'|', 0x75 },+
> > { BOXDRAW_DOWN_HORIZONTAL_DOUBLE, 0xd1, L'+', 0x77 },+
> > { BOXDRAW_DOWN_DOUBLE_HORIZONTAL, 0xd2, L'+', 0x77 },+
> > { BOXDRAW_DOUBLE_DOWN_HORIZONTAL, 0xcb, L'+', 0x77 },+
> > { BOXDRAW_UP_HORIZONTAL_DOUBLE, 0xcf, L'+', 0x76 },+
> > { BOXDRAW_UP_DOUBLE_HORIZONTAL, 0xd0, L'+', 0x76 },+
> > { BOXDRAW_DOUBLE_UP_HORIZONTAL, 0xca, L'+', 0x76 },+
> > { BOXDRAW_VERTICAL_HORIZONTAL_DOUBLE, 0xd8, L'+', 0x6e },+
> > { BOXDRAW_VERTICAL_DOUBLE_HORIZONTAL, 0xd7, L'+', 0x6e },+
> > { BOXDRAW_DOUBLE_VERTICAL_HORIZONTAL, 0xce, L'+', 0x6e }, -
> > { BLOCKELEMENT_FULL_BLOCK, 0xdb, L'*' },-
> > { BLOCKELEMENT_LIGHT_SHADE, 0xb0, L'+' },+
> > { BLOCKELEMENT_FULL_BLOCK, 0xdb, L'*', 0x61 },+
> > { BLOCKELEMENT_LIGHT_SHADE, 0xb0, L'+', 0x61 }, -
> > { GEOMETRICSHAPE_UP_TRIANGLE, '^', L'^' },-
> > { GEOMETRICSHAPE_RIGHT_TRIANGLE, '>', L'>' },-
> > { GEOMETRICSHAPE_DOWN_TRIANGLE, 'v', L'v' },-
> > { GEOMETRICSHAPE_LEFT_TRIANGLE, '<', L'<' },+
> > { GEOMETRICSHAPE_UP_TRIANGLE, '^', L'^', L'^' },+
> > { GEOMETRICSHAPE_RIGHT_TRIANGLE, '>', L'>', L'>' },+
> > { GEOMETRICSHAPE_DOWN_TRIANGLE, 'v', L'v', L'v' },+
> > { GEOMETRICSHAPE_LEFT_TRIANGLE, '<', L'<', L'<' }, - {
> ARROW_LEFT,
> > '<', L'<' },- { ARROW_UP, '^', L'^' },- {
> ARROW_RIGHT,
> > '>', L'>' },- { ARROW_DOWN, 'v', L'v' },-- {
> 0x0000,
> > 0x00, L'\0' }+ { ARROW_LEFT, '<', L'<', L'<'
> },+ { ARROW_UP,
> > '^', L'^', L'^' },+ { ARROW_RIGHT, '>',
> L'>', L'>' },+
> > { ARROW_DOWN, 'v', L'v', L'v' }, }; CHAR16
> mSetModeString[]
> > = { ESC, '[', '=', '3', 'h', 0 };@@ -80,6 +78,8 @@ CHAR16
> > mSetCursorPositionString[] = { ESC, '[', '0', '0', ';', '0', '0', 'H', 0
> > CHAR16 mCursorForwardString[] = { ESC, '[', '0', '0', 'C', 0 };
> CHAR16
> > mCursorBackwardString[] = { ESC, '[', '0', '0', 'D', 0 }; +CHAR8
> > SetDecModeString[] = {ESC, 0x28, 0x30};+CHAR8
> ExitDecModeString[]
> > = {ESC, 0x28, 0x42}; // // Body of the ConOut functions //@@ -183,16
> +183,19
> > @@ TerminalConOutOutputString (
> > EFI_STATUS Status; UINT8
> ValidBytes; CHAR8
> > CrLfStr[2];+ CHAR8 DecChar;+ UINTN
> > ModeSwitchLength; // // flag used to indicate whether condition
> happens
> > which will cause // return EFI_WARN_UNKNOWN_GLYPH // BOOLEAN
> > Warning; - ValidBytes = 0;- Warning = FALSE;- AsciiChar =
> 0;-+ ValidBytes
> > = 0;+ Warning = FALSE;+ AsciiChar = 0;+ DecChar
> = 0;+
> > ModeSwitchLength = LENGTH_DEC_ESCAPE; // // get Terminal device data
> > structure pointer. //@@ -217,17 +220,137 @@ TerminalConOutOutputString
> > (
> > for (; *WString != CHAR_NULL; WString++) { switch
> (TerminalDevice-
> > >TerminalType) {- case TerminalTypePcAnsi:- case
> TerminalTypeVt100:-
> > case TerminalTypeVt100Plus:- case TerminalTypeTtyTerm:- case
> > TerminalTypeLinux:+ if (!TerminalIsValidTextGraphics (*WString,
> > &GraphicChar, &AsciiChar, NULL)) {+ //+ // If it's not a
> graphic
> > character convert Unicode to ASCII.+ //+ GraphicChar =
> > (CHAR8)*WString;++ if (!(TerminalIsValidAscii (GraphicChar) ||
> > TerminalIsValidEfiCntlChar (GraphicChar))) {+ //+ //
> when this driver
> > use the OutputString to output control string,+ //
> TerminalDevice-
> > >OutputEscChar is set to let the Esc char+ // to be output to
> the terminal
> > emulation software.+ //+ if ((GraphicChar == 27) &&
> > TerminalDevice->OutputEscChar) {+ GraphicChar = 27;+
> } else {+
> > GraphicChar = '?';+ Warning = TRUE;+ }+
> }++ AsciiChar =
> > GraphicChar;+ }+ Length = 1;+ Status =
> TerminalDevice->SerialIo-
> > >Write (+
> TerminalDevice->SerialIo,+
> > &Length,+ &GraphicChar+
> );++ if
> > (EFI_ERROR (Status)) {+ goto OutputError;+ }++ break;
> case
> > TerminalTypeXtermR6:- case TerminalTypeVt400: case
> > TerminalTypeSCO:+ if (TerminalIsValidTextGraphics (*WString, NULL,
> NULL,
> > &DecChar) && !TerminalIsValidAscii (*WString)) {+ //+ //
> Box graphics
> > are split into 2 types simple and advanced.+ // Simple are drawn
> with dec
> > special graphics.+ // Advanced are drawn with utf8.+ //
> This checks for
> > simple because they have a lower value than the advanced.+
> if(*WString
> > < BOXDRAW_DOUBLE_HORIZONTAL) {+ if (!TerminalDevice-
> > >DecSpecialGraphicsMode) {+ ValidBytes = 0;+
> > ModeSwitchLength = LENGTH_DEC_ESCAPE;+ Status =
> TerminalDevice-
> > >SerialIo->Write (+
> TerminalDevice->SerialIo,+
> > &ModeSwitchLength,+ (UINT8
> > *)SetDecModeString+ );+
> TerminalDevice-
> > >DecSpecialGraphicsMode = TRUE;+ } - if
> > (!TerminalIsValidTextGraphics (*WString, &GraphicChar, &AsciiChar)) {+
> > GraphicChar = DecChar;+ Length = 1;+ } else {+
> if
> > (TerminalDevice->DecSpecialGraphicsMode) {+ ModeSwitchLength =
> > LENGTH_DEC_ESCAPE;+ Status = TerminalDevice->SerialIo->Write
> (+
> > TerminalDevice->SerialIo,+
> &ModeSwitchLength,+
> > (UINT8 *)ExitDecModeString+
> );+ if (EFI_ERROR
> > (Status)) {+ goto OutputError;+ }++
> TerminalDevice-
> > >DecSpecialGraphicsMode = FALSE;+ }++ UnicodeToUtf8
> (*WString,
> > &Utf8Char, &ValidBytes);+ Length = ValidBytes;+ }+
> } else {+ if
> > (TerminalDevice->DecSpecialGraphicsMode) {+ Status =
> TerminalDevice-
> > >SerialIo->Write (+
> TerminalDevice->SerialIo,+
> > &ModeSwitchLength,+ (UINT8
> > *)ExitDecModeString+ );+
> if (EFI_ERROR (Status))
> > {+ goto OutputError;+ }++ TerminalDevice-
> > >DecSpecialGraphicsMode = FALSE;+ }++ GraphicChar =
> > (CHAR8)*WString;++ if (!(TerminalIsValidAscii (GraphicChar) ||
> > TerminalIsValidEfiCntlChar (GraphicChar))) {+ //+ //
> when this driver
> > use the OutputString to output control string,+ //
> TerminalDevice-
> > >OutputEscChar is set to let the Esc char+ // to be output to
> the terminal
> > emulation software.+ //+ if ((GraphicChar == 27) &&
> > TerminalDevice->OutputEscChar) {+ GraphicChar = 27;+
> Length =
> > 1;+ } else {+ UnicodeToUtf8 (*WString, &Utf8Char,
> &ValidBytes);+
> > Length = ValidBytes;+ }+ } else {+ Length =
> 1;+ }+ }++ if
> > (ValidBytes) {+ Status = TerminalDevice->SerialIo->Write (+
> > TerminalDevice->SerialIo,+
> &Length,+
> > (UINT8 *)&Utf8Char+ );+
> ValidBytes = 0;+ } else {+
> > Status = TerminalDevice->SerialIo->Write (+
> > TerminalDevice->SerialIo,+
> &Length,+
> > &GraphicChar+ );+ }+
> if (EFI_ERROR (Status)) {+
> > goto OutputError;+ }++ break;+ case TerminalTypeVt100:+ case
> > TerminalTypeTtyTerm:+ if (!TerminalIsValidTextGraphics (*WString,
> > &GraphicChar, &AsciiChar, NULL)) { // // If it's not a
> graphic character
> > convert Unicode to ASCII. //@@ -248,14 +371,70 @@
> > TerminalConOutOutputString (
> > } AsciiChar = GraphicChar;- } - if
> (TerminalDevice-
> > >TerminalType != TerminalTypePcAnsi) {- GraphicChar = AsciiChar;+
> > GraphicChar = AsciiChar;++ Length = 1;++ Status =
> TerminalDevice-
> > >SerialIo->Write (+
> TerminalDevice->SerialIo,+
> > &Length,+ &GraphicChar+
> );++ if
> > (EFI_ERROR (Status)) {+ goto OutputError; } +
> break;+ case
> > TerminalTypeVt100Plus:+ case TerminalTypeVt400: Length = 1;+
> if
> > (TerminalIsValidTextGraphics (*WString, NULL, NULL, &DecChar)) {+
> if
> > (!TerminalDevice->DecSpecialGraphicsMode) {+ ModeSwitchLength =
> > LENGTH_DEC_ESCAPE;+ Status = TerminalDevice->SerialIo->Write (+
> > TerminalDevice->SerialIo,+
> &ModeSwitchLength,+
> > (UINT8 *)SetDecModeString+
> );+ TerminalDevice-
> > >DecSpecialGraphicsMode = TRUE;+ }++ GraphicChar =
> DecChar;+ }
> > else {+ if (TerminalDevice->DecSpecialGraphicsMode) {+
> > ModeSwitchLength = LENGTH_DEC_ESCAPE;+ Status = TerminalDevice-
> > >SerialIo->Write (+
> TerminalDevice->SerialIo,+
> > &ModeSwitchLength,+ (UINT8
> > *)ExitDecModeString+ );++
> if (EFI_ERROR (Status))
> > {+ goto OutputError;+ }++ TerminalDevice-
> > >DecSpecialGraphicsMode = FALSE;+ }++ GraphicChar =
> > (CHAR8)*WString;++ if (!(TerminalIsValidAscii (GraphicChar) ||
> > TerminalIsValidEfiCntlChar (GraphicChar))) {+ //+ //
> when this driver
> > use the OutputString to output control string,+ //
> TerminalDevice-
> > >OutputEscChar is set to let the Esc char+ // to be output to
> the terminal
> > emulation software.+ //+ if ((GraphicChar == 27) &&
> > TerminalDevice->OutputEscChar) {+ GraphicChar = 27;+
> } else {+
> > GraphicChar = '?';+ Warning = TRUE;+ }+
> }+ } Status =
> > TerminalDevice->SerialIo->Write (
> TerminalDevice-
> > >SerialIo,@@ -268,7 +447,7 @@ TerminalConOutOutputString (
> > } break;-+ case TerminalTypeLinux: case
> TerminalTypeVtUtf8:
> > UnicodeToUtf8 (*WString, &Utf8Char, &ValidBytes); Length =
> > ValidBytes;@@ -280,8 +459,10 @@ TerminalConOutOutputString (
> > if (EFI_ERROR (Status)) { goto OutputError; }+
> break; }+ //
> > // Update cursor position. //@@ -875,7 +1056,8 @@ BOOLEAN
> > TerminalIsValidTextGraphics ( IN CHAR16 Graphic, OUT CHAR8
> *PcAnsi,
> > OPTIONAL- OUT CHAR8 *Ascii OPTIONAL+ OUT CHAR8 *Ascii, OPTIONAL+
> > OUT CHAR8 *DecSpecialGraphics OPTIONAL ) { UNICODE_TO_CHAR
> > *Table;@@ -897,6 +1079,9 @@ TerminalIsValidTextGraphics (
> > if (Ascii != NULL) { *Ascii = Table->Ascii; }+
> if
> > (DecSpecialGraphics != NULL){+ *DecSpecialGraphics = Table-
> > >DecSpecialGraphics;+ } return TRUE; }--
> > 2.32.0
> >
> >
> >
> > -=-=-=-=-=-=
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> > Unsubscribe: https://edk2.groups.io/g/devel/unsub [zhichao.gao at intel.com
> ]
> > -=-=-=-=-=-=
> >
>
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