130 строки
6.1 KiB
Diff
130 строки
6.1 KiB
Diff
From 3b413c99f3a5087710f4932b4ba61c2646ae84b9 Mon Sep 17 00:00:00 2001
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From: Laszlo Ersek <lersek@redhat.com>
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Date: Tue, 25 Feb 2014 18:40:35 +0100
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Subject: [PATCH] MdeModulePkg: TerminalDxe: add other text resolutions
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When the console output is multiplexed to several devices by
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ConSplitterDxe, then ConSplitterDxe builds an intersection of text modes
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supported by all console output devices.
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Two notable output devices are provided by:
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(1) MdeModulePkg/Universal/Console/GraphicsConsoleDxe,
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(2) MdeModulePkg/Universal/Console/TerminalDxe.
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GraphicsConsoleDxe supports four modes at most -- see
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InitializeGraphicsConsoleTextMode() and "mGraphicsConsoleModeData":
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(1a) 80x25 (required by the UEFI spec as mode 0),
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(1b) 80x50 (not necessarily supported, but if it is, then the UEFI spec
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requires the driver to provide it as mode 1),
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(1c) 100x31 (corresponding to graphics resolution 800x600, which the UEFI
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spec requires from all plug-in graphics devices),
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(1d) "full screen" resolution, derived form the underlying GOP's
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horizontal and vertical resolutions with division by EFI_GLYPH_WIDTH
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(8) and EFI_GLYPH_HEIGHT (19), respectively.
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The automatic "full screen resolution" makes GraphicsConsoleDxe's
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character console very flexible. However, TerminalDxe (which runs on
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serial ports) only provides the following fixed resolutions -- see
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InitializeTerminalConsoleTextMode() and "mTerminalConsoleModeData":
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(2a) 80x25 (required by the UEFI spec as mode 0),
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(2b) 80x50 (since the character resolution of a serial device cannot be
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interrogated easily, this is added unconditionally as mode 1),
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(2c) 100x31 (since the character resolution of a serial device cannot be
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interrogated easily, this is added unconditionally as mode 2).
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When ConSplitterDxe combines (1) and (2), multiplexing console output to
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both video output and serial terminal, the list of commonly supported text
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modes (ie. the "intersection") comprises:
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(3a) 80x25, unconditionally, from (1a) and (2a),
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(3b) 80x50, if the graphics console provides at least 640x950 pixel
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resolution, from (1b) and (2b)
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(3c) 100x31, if the graphics device is a plug-in one (because in that case
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800x600 is a mandated pixel resolution), from (1c) and (2c).
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Unfortunately, the "full screen resolution" (1d) of the GOP-based text
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console is not available in general.
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Mitigate this problem by extending "mTerminalConsoleModeData" with a
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handful of text resolutions that are derived from widespread maximal pixel
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resolutions. This way TerminalDxe won't cause ConSplitterDxe to filter out
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the most frequent (1d) values from the intersection, and eg. the MODE
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command in the UEFI shell will offer the "best" (ie. full screen)
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resolution too.
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Upstream status: three calendar months (with on-and-off discussion and
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patches) have not been enough to find a solution to this problem that
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would please all stakeholders.
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Notes about the 20160608b-988715a -> 20170228-c325e41585e3 rebase:
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- adapt commit 0bc77c63de03 (code and commit message) to upstream commit
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390b95a49c14 ("MdeModulePkg/TerminalDxe: Refine
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InitializeTerminalConsoleTextMode", 2017-01-10).
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Notes about the 20170228-c325e41585e3 -> 20171011-92d07e48907f rebase:
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- no changes
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Signed-off-by: Laszlo Ersek <lersek@redhat.com>
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(cherry picked from commit 99dc3720ac86059f60156197328cc433603c536e)
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Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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---
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.../Universal/Console/TerminalDxe/Terminal.c | 41 +++++++++++++++++--
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1 file changed, 38 insertions(+), 3 deletions(-)
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diff --git a/MdeModulePkg/Universal/Console/TerminalDxe/Terminal.c b/MdeModulePkg/Universal/Console/TerminalDxe/Terminal.c
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index a98b690c8b..ded5513c74 100644
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--- a/MdeModulePkg/Universal/Console/TerminalDxe/Terminal.c
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+++ b/MdeModulePkg/Universal/Console/TerminalDxe/Terminal.c
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@@ -115,9 +115,44 @@ TERMINAL_DEV mTerminalDevTemplate = {
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};
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TERMINAL_CONSOLE_MODE_DATA mTerminalConsoleModeData[] = {
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- {80, 25},
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- {80, 50},
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- {100, 31},
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+ { 80, 25 }, // from graphics resolution 640 x 480
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+ { 80, 50 }, // from graphics resolution 640 x 960
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+ { 100, 25 }, // from graphics resolution 800 x 480
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+ { 100, 31 }, // from graphics resolution 800 x 600
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+ { 104, 32 }, // from graphics resolution 832 x 624
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+ { 120, 33 }, // from graphics resolution 960 x 640
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+ { 128, 31 }, // from graphics resolution 1024 x 600
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+ { 128, 40 }, // from graphics resolution 1024 x 768
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+ { 144, 45 }, // from graphics resolution 1152 x 864
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+ { 144, 45 }, // from graphics resolution 1152 x 870
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+ { 160, 37 }, // from graphics resolution 1280 x 720
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+ { 160, 40 }, // from graphics resolution 1280 x 760
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+ { 160, 40 }, // from graphics resolution 1280 x 768
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+ { 160, 42 }, // from graphics resolution 1280 x 800
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+ { 160, 50 }, // from graphics resolution 1280 x 960
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+ { 160, 53 }, // from graphics resolution 1280 x 1024
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+ { 170, 40 }, // from graphics resolution 1360 x 768
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+ { 170, 40 }, // from graphics resolution 1366 x 768
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+ { 175, 55 }, // from graphics resolution 1400 x 1050
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+ { 180, 47 }, // from graphics resolution 1440 x 900
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+ { 200, 47 }, // from graphics resolution 1600 x 900
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+ { 200, 63 }, // from graphics resolution 1600 x 1200
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+ { 210, 55 }, // from graphics resolution 1680 x 1050
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+ { 240, 56 }, // from graphics resolution 1920 x 1080
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+ { 240, 63 }, // from graphics resolution 1920 x 1200
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+ { 240, 75 }, // from graphics resolution 1920 x 1440
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+ { 250, 105 }, // from graphics resolution 2000 x 2000
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+ { 256, 80 }, // from graphics resolution 2048 x 1536
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+ { 256, 107 }, // from graphics resolution 2048 x 2048
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+ { 320, 75 }, // from graphics resolution 2560 x 1440
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+ { 320, 84 }, // from graphics resolution 2560 x 1600
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+ { 320, 107 }, // from graphics resolution 2560 x 2048
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+ { 350, 110 }, // from graphics resolution 2800 x 2100
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+ { 400, 126 }, // from graphics resolution 3200 x 2400
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+ { 480, 113 }, // from graphics resolution 3840 x 2160
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+ { 512, 113 }, // from graphics resolution 4096 x 2160
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+ { 960, 227 }, // from graphics resolution 7680 x 4320
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+ { 1024, 227 }, // from graphics resolution 8192 x 4320
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//
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// New modes can be added here.
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//
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