edk2/0008-MdeModulePkg-TerminalDxe-set-xterm-resolution-on-mod.patch
2018-08-31 13:06:06 -04:00

129 lines
4.7 KiB
Diff

From f337eb3972afcccabe86fe663202a758337d0ab8 Mon Sep 17 00:00:00 2001
From: Laszlo Ersek <lersek@redhat.com>
Date: Tue, 25 Feb 2014 22:40:01 +0100
Subject: [PATCH] MdeModulePkg: TerminalDxe: set xterm resolution on mode
change (RH only)
The
CSI Ps ; Ps ; Ps t
escape sequence serves for window manipulation. We can use the
CSI 8 ; <rows> ; <columns> t
sequence to adapt eg. the xterm window size to the selected console mode.
Notes about the 20160608b-988715a -> 20170228-c325e41585e3 rebase:
- refresh commit 519b9751573e against various context changes
Notes about the 20170228-c325e41585e3 -> 20171011-92d07e48907f rebase:
- Refresh downstream-only commit 2909e025db68 against "MdeModulePkg.dec"
context change from upstream commits e043f7895b83 ("MdeModulePkg: Add
PCD PcdPteMemoryEncryptionAddressOrMask", 2017-02-27) and 76081dfcc5b2
("MdeModulePkg: Add PROMPT&HELP string of pcd to UNI file", 2017-03-03).
Reference: <http://rtfm.etla.org/xterm/ctlseq.html>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
(cherry picked from commit 2909e025db6878723b49644a8a0cf160d07e6444)
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
MdeModulePkg/MdeModulePkg.dec | 4 +++
.../Console/TerminalDxe/TerminalConOut.c | 30 +++++++++++++++++++
.../Console/TerminalDxe/TerminalDxe.inf | 2 ++
3 files changed, 36 insertions(+)
diff --git a/MdeModulePkg/MdeModulePkg.dec b/MdeModulePkg/MdeModulePkg.dec
index 6a6d9660ed..2dc1cf94e2 100644
--- a/MdeModulePkg/MdeModulePkg.dec
+++ b/MdeModulePkg/MdeModulePkg.dec
@@ -1936,6 +1936,10 @@
# @Prompt The address mask when memory encryption is enabled.
gEfiMdeModulePkgTokenSpaceGuid.PcdPteMemoryEncryptionAddressOrMask|0x0|UINT64|0x30001047
+ ## Controls whether TerminalDxe outputs an XTerm resize sequence on terminal
+ # mode change.
+ gEfiMdeModulePkgTokenSpaceGuid.PcdResizeXterm|FALSE|BOOLEAN|0x00010080
+
[PcdsPatchableInModule]
## Specify memory size with page number for PEI code when
# Loading Module at Fixed Address feature is enabled.
diff --git a/MdeModulePkg/Universal/Console/TerminalDxe/TerminalConOut.c b/MdeModulePkg/Universal/Console/TerminalDxe/TerminalConOut.c
index 4d7218e415..295e7641a5 100644
--- a/MdeModulePkg/Universal/Console/TerminalDxe/TerminalConOut.c
+++ b/MdeModulePkg/Universal/Console/TerminalDxe/TerminalConOut.c
@@ -13,6 +13,8 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
**/
+#include <Library/PrintLib.h>
+
#include "Terminal.h"
//
@@ -86,6 +88,16 @@ CHAR16 mSetCursorPositionString[] = { ESC, '[', '0', '0', ';', '0', '0', 'H', 0
CHAR16 mCursorForwardString[] = { ESC, '[', '0', '0', 'C', 0 };
CHAR16 mCursorBackwardString[] = { ESC, '[', '0', '0', 'D', 0 };
+//
+// Note that this is an ASCII format string, taking two INT32 arguments:
+// rows, columns.
+//
+// A %d (INT32) format specification can expand to at most 11 characters.
+//
+CHAR8 mResizeTextAreaFormatString[] = "\x1B[8;%d;%dt";
+#define RESIZE_SEQ_SIZE (sizeof mResizeTextAreaFormatString + 2 * (11 - 2))
+
+
//
// Body of the ConOut functions
//
@@ -508,6 +520,24 @@ TerminalConOutSetMode (
return EFI_DEVICE_ERROR;
}
+ if (PcdGetBool (PcdResizeXterm)) {
+ CHAR16 ResizeSequence[RESIZE_SEQ_SIZE];
+
+ UnicodeSPrintAsciiFormat (
+ ResizeSequence,
+ sizeof ResizeSequence,
+ mResizeTextAreaFormatString,
+ (INT32) TerminalDevice->TerminalConsoleModeData[ModeNumber].Rows,
+ (INT32) TerminalDevice->TerminalConsoleModeData[ModeNumber].Columns
+ );
+ TerminalDevice->OutputEscChar = TRUE;
+ Status = This->OutputString (This, ResizeSequence);
+ TerminalDevice->OutputEscChar = FALSE;
+ if (EFI_ERROR (Status)) {
+ return EFI_DEVICE_ERROR;
+ }
+ }
+
This->Mode->Mode = (INT32) ModeNumber;
Status = This->ClearScreen (This);
diff --git a/MdeModulePkg/Universal/Console/TerminalDxe/TerminalDxe.inf b/MdeModulePkg/Universal/Console/TerminalDxe/TerminalDxe.inf
index 0780296798..bd2ba828a6 100644
--- a/MdeModulePkg/Universal/Console/TerminalDxe/TerminalDxe.inf
+++ b/MdeModulePkg/Universal/Console/TerminalDxe/TerminalDxe.inf
@@ -60,6 +60,7 @@
DebugLib
PcdLib
BaseLib
+ PrintLib
[Guids]
## SOMETIMES_PRODUCES ## Variable:L"ConInDev"
@@ -88,6 +89,7 @@
[Pcd]
gEfiMdePkgTokenSpaceGuid.PcdDefaultTerminalType ## SOMETIMES_CONSUMES
gEfiMdeModulePkgTokenSpaceGuid.PcdErrorCodeSetVariable ## CONSUMES
+ gEfiMdeModulePkgTokenSpaceGuid.PcdResizeXterm ## CONSUMES
# [Event]
# # Relative timer event set by UnicodeToEfiKey(), used to be one 2 seconds input timeout.