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OpenCorePkg/Library/OcConsoleLib/TextOutputBuiltin.c
Mike Beaton 216bdcedc3 OcConsoleLib: Builtin renderer updates 
- Avoid additional clear screen when resyncing
 - Use same values to trigger full clear screen after background
   colour change as after mark uncontrolled
 - Only scroll used width when controlled
 - Reset controlled area after clear screen
 - Fix mConsoleMaxPosY init error for controlled mode
   o Present since 76e889f89af7ecdec0a8de191d7ded5856b338fb
 - Fix ConsoleControl wording in docs
 - Add ASSERTS and comments
2023-05-02 07:49:01 +01:00

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/** @file
Copyright (C) 2020, vit9696. All rights reserved.
All rights reserved.
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
http://opensource.org/licenses/bsd-license.php
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
**/
#include "OcConsoleLibInternal.h"
#include <Uefi.h>
#include <Guid/AppleVariable.h>
#include <Library/BaseLib.h>
#include <Library/BaseMemoryLib.h>
#include <Library/DebugLib.h>
#include <Library/MemoryAllocationLib.h>
#include <Library/OcConsoleLib.h>
#include <Library/OcMiscLib.h>
#include <Library/UefiBootServicesTableLib.h>
#include <Library/UefiRuntimeServicesTableLib.h>
#include <Protocol/ConsoleControl.h>
#include <Protocol/GraphicsOutput.h>
/*
* ISO Latin-1 Font
*
* Copyright (c) 2000
* Ka-Ping Yee <ping@lfw.org>
*
* This font may be freely used for any purpose.
*/
#define ISO_CHAR_MIN 0x21
#define ISO_CHAR_MAX 0x7E
#define ISO_CHAR_WIDTH 8
#define ISO_CHAR_HEIGHT 16
STATIC UINT8 mIsoFontData[(ISO_CHAR_MAX - ISO_CHAR_MIN + 1)*(ISO_CHAR_HEIGHT - 2)] = {
/* 33 */ 0x00, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x00, 0x18, 0x18, 0x00, 0x00, 0x00,
/* 34 */ 0x00, 0x6c, 0x6c, 0x36, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
/* 35 */ 0x00, 0x00, 0x36, 0x36, 0x7f, 0x36, 0x36, 0x7f, 0x36, 0x36, 0x00, 0x00, 0x00, 0x00,
/* 36 */ 0x08, 0x08, 0x3e, 0x6b, 0x0b, 0x0b, 0x3e, 0x68, 0x68, 0x6b, 0x3e, 0x08, 0x08, 0x00,
/* 37 */ 0x00, 0x00, 0x33, 0x13, 0x18, 0x08, 0x0c, 0x04, 0x06, 0x32, 0x33, 0x00, 0x00, 0x00,
/* 38 */ 0x00, 0x1c, 0x36, 0x36, 0x1c, 0x6c, 0x3e, 0x33, 0x33, 0x7b, 0xce, 0x00, 0x00, 0x00,
/* 39 */ 0x00, 0x18, 0x18, 0x0c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
/* 40 */ 0x00, 0x30, 0x18, 0x18, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x18, 0x18, 0x30, 0x00, 0x00,
/* 41 */ 0x00, 0x0c, 0x18, 0x18, 0x30, 0x30, 0x30, 0x30, 0x30, 0x18, 0x18, 0x0c, 0x00, 0x00,
/* 42 */ 0x00, 0x00, 0x00, 0x00, 0x36, 0x1c, 0x7f, 0x1c, 0x36, 0x00, 0x00, 0x00, 0x00, 0x00,
/* 43 */ 0x00, 0x00, 0x00, 0x00, 0x18, 0x18, 0x7e, 0x18, 0x18, 0x00, 0x00, 0x00, 0x00, 0x00,
/* 44 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x18, 0x18, 0x0c, 0x00, 0x00,
/* 45 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x7e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
/* 46 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x18, 0x18, 0x00, 0x00, 0x00,
/* 47 */ 0x00, 0x60, 0x20, 0x30, 0x10, 0x18, 0x08, 0x0c, 0x04, 0x06, 0x02, 0x03, 0x00, 0x00,
/* 48 */ 0x00, 0x3e, 0x63, 0x63, 0x63, 0x6b, 0x6b, 0x63, 0x63, 0x63, 0x3e, 0x00, 0x00, 0x00,
/* 49 */ 0x00, 0x18, 0x1e, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x00, 0x00, 0x00,
/* 50 */ 0x00, 0x3e, 0x63, 0x60, 0x60, 0x30, 0x18, 0x0c, 0x06, 0x03, 0x7f, 0x00, 0x00, 0x00,
/* 51 */ 0x00, 0x3e, 0x63, 0x60, 0x60, 0x3c, 0x60, 0x60, 0x60, 0x63, 0x3e, 0x00, 0x00, 0x00,
/* 52 */ 0x00, 0x30, 0x38, 0x3c, 0x36, 0x33, 0x7f, 0x30, 0x30, 0x30, 0x30, 0x00, 0x00, 0x00,
/* 53 */ 0x00, 0x7f, 0x03, 0x03, 0x3f, 0x60, 0x60, 0x60, 0x60, 0x63, 0x3e, 0x00, 0x00, 0x00,
/* 54 */ 0x00, 0x3c, 0x06, 0x03, 0x03, 0x3f, 0x63, 0x63, 0x63, 0x63, 0x3e, 0x00, 0x00, 0x00,
/* 55 */ 0x00, 0x7f, 0x60, 0x30, 0x30, 0x18, 0x18, 0x18, 0x0c, 0x0c, 0x0c, 0x00, 0x00, 0x00,
/* 56 */ 0x00, 0x3e, 0x63, 0x63, 0x63, 0x3e, 0x63, 0x63, 0x63, 0x63, 0x3e, 0x00, 0x00, 0x00,
/* 57 */ 0x00, 0x3e, 0x63, 0x63, 0x63, 0x7e, 0x60, 0x60, 0x60, 0x30, 0x1e, 0x00, 0x00, 0x00,
/* 58 */ 0x00, 0x00, 0x00, 0x00, 0x18, 0x18, 0x00, 0x00, 0x00, 0x18, 0x18, 0x00, 0x00, 0x00,
/* 59 */ 0x00, 0x00, 0x00, 0x00, 0x18, 0x18, 0x00, 0x00, 0x00, 0x18, 0x18, 0x0c, 0x00, 0x00,
/* 60 */ 0x00, 0x60, 0x30, 0x18, 0x0c, 0x06, 0x06, 0x0c, 0x18, 0x30, 0x60, 0x00, 0x00, 0x00,
/* 61 */ 0x00, 0x00, 0x00, 0x00, 0x7e, 0x00, 0x00, 0x7e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
/* 62 */ 0x00, 0x06, 0x0c, 0x18, 0x30, 0x60, 0x60, 0x30, 0x18, 0x0c, 0x06, 0x00, 0x00, 0x00,
/* 63 */ 0x00, 0x3e, 0x63, 0x60, 0x30, 0x30, 0x18, 0x18, 0x00, 0x18, 0x18, 0x00, 0x00, 0x00,
/* 64 */ 0x00, 0x3c, 0x66, 0x73, 0x7b, 0x6b, 0x6b, 0x7b, 0x33, 0x06, 0x3c, 0x00, 0x00, 0x00,
/* 65 */ 0x00, 0x3e, 0x63, 0x63, 0x63, 0x7f, 0x63, 0x63, 0x63, 0x63, 0x63, 0x00, 0x00, 0x00,
/* 66 */ 0x00, 0x3f, 0x63, 0x63, 0x63, 0x3f, 0x63, 0x63, 0x63, 0x63, 0x3f, 0x00, 0x00, 0x00,
/* 67 */ 0x00, 0x3c, 0x66, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x66, 0x3c, 0x00, 0x00, 0x00,
/* 68 */ 0x00, 0x1f, 0x33, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x33, 0x1f, 0x00, 0x00, 0x00,
/* 69 */ 0x00, 0x7f, 0x03, 0x03, 0x03, 0x3f, 0x03, 0x03, 0x03, 0x03, 0x7f, 0x00, 0x00, 0x00,
/* 70 */ 0x00, 0x7f, 0x03, 0x03, 0x03, 0x3f, 0x03, 0x03, 0x03, 0x03, 0x03, 0x00, 0x00, 0x00,
/* 71 */ 0x00, 0x3c, 0x66, 0x03, 0x03, 0x03, 0x73, 0x63, 0x63, 0x66, 0x7c, 0x00, 0x00, 0x00,
/* 72 */ 0x00, 0x63, 0x63, 0x63, 0x63, 0x7f, 0x63, 0x63, 0x63, 0x63, 0x63, 0x00, 0x00, 0x00,
/* 73 */ 0x00, 0x3c, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x3c, 0x00, 0x00, 0x00,
/* 74 */ 0x00, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x33, 0x1e, 0x00, 0x00, 0x00,
/* 75 */ 0x00, 0x63, 0x33, 0x1b, 0x0f, 0x07, 0x07, 0x0f, 0x1b, 0x33, 0x63, 0x00, 0x00, 0x00,
/* 76 */ 0x00, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x7f, 0x00, 0x00, 0x00,
/* 77 */ 0x00, 0x63, 0x63, 0x77, 0x7f, 0x7f, 0x6b, 0x6b, 0x63, 0x63, 0x63, 0x00, 0x00, 0x00,
/* 78 */ 0x00, 0x63, 0x63, 0x67, 0x6f, 0x6f, 0x7b, 0x7b, 0x73, 0x63, 0x63, 0x00, 0x00, 0x00,
/* 79 */ 0x00, 0x3e, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x3e, 0x00, 0x00, 0x00,
/* 80 */ 0x00, 0x3f, 0x63, 0x63, 0x63, 0x63, 0x3f, 0x03, 0x03, 0x03, 0x03, 0x00, 0x00, 0x00,
/* 81 */ 0x00, 0x3e, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x6f, 0x7b, 0x3e, 0x30, 0x60, 0x00,
/* 82 */ 0x00, 0x3f, 0x63, 0x63, 0x63, 0x63, 0x3f, 0x1b, 0x33, 0x63, 0x63, 0x00, 0x00, 0x00,
/* 83 */ 0x00, 0x3e, 0x63, 0x03, 0x03, 0x0e, 0x38, 0x60, 0x60, 0x63, 0x3e, 0x00, 0x00, 0x00,
/* 84 */ 0x00, 0x7e, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x00, 0x00, 0x00,
/* 85 */ 0x00, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x3e, 0x00, 0x00, 0x00,
/* 86 */ 0x00, 0x63, 0x63, 0x63, 0x63, 0x63, 0x36, 0x36, 0x1c, 0x1c, 0x08, 0x00, 0x00, 0x00,
/* 87 */ 0x00, 0x63, 0x63, 0x6b, 0x6b, 0x6b, 0x6b, 0x7f, 0x36, 0x36, 0x36, 0x00, 0x00, 0x00,
/* 88 */ 0x00, 0x63, 0x63, 0x36, 0x36, 0x1c, 0x1c, 0x36, 0x36, 0x63, 0x63, 0x00, 0x00, 0x00,
/* 89 */ 0x00, 0xc3, 0xc3, 0x66, 0x66, 0x3c, 0x3c, 0x18, 0x18, 0x18, 0x18, 0x00, 0x00, 0x00,
/* 90 */ 0x00, 0x7f, 0x30, 0x30, 0x18, 0x18, 0x0c, 0x0c, 0x06, 0x06, 0x7f, 0x00, 0x00, 0x00,
/* 91 */ 0x00, 0x3c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x3c, 0x00, 0x00, 0x00,
/* 92 */ 0x00, 0x03, 0x02, 0x06, 0x04, 0x0c, 0x08, 0x18, 0x10, 0x30, 0x20, 0x60, 0x00, 0x00,
/* 93 */ 0x00, 0x3c, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x3c, 0x00, 0x00, 0x00,
/* 94 */ 0x08, 0x1c, 0x36, 0x63, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
/* 95 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0x00,
/* 96 */ 0x00, 0x0c, 0x0c, 0x18, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
/* 97 */ 0x00, 0x00, 0x00, 0x00, 0x3e, 0x60, 0x7e, 0x63, 0x63, 0x73, 0x6e, 0x00, 0x00, 0x00,
/* 98 */ 0x00, 0x03, 0x03, 0x03, 0x3b, 0x67, 0x63, 0x63, 0x63, 0x67, 0x3b, 0x00, 0x00, 0x00,
/* 99 */ 0x00, 0x00, 0x00, 0x00, 0x3e, 0x63, 0x03, 0x03, 0x03, 0x63, 0x3e, 0x00, 0x00, 0x00,
/* 100 */ 0x00, 0x60, 0x60, 0x60, 0x6e, 0x73, 0x63, 0x63, 0x63, 0x73, 0x6e, 0x00, 0x00, 0x00,
/* 101 */ 0x00, 0x00, 0x00, 0x00, 0x3e, 0x63, 0x63, 0x7f, 0x03, 0x63, 0x3e, 0x00, 0x00, 0x00,
/* 102 */ 0x00, 0x3c, 0x66, 0x06, 0x1f, 0x06, 0x06, 0x06, 0x06, 0x06, 0x06, 0x00, 0x00, 0x00,
/* 103 */ 0x00, 0x00, 0x00, 0x00, 0x6e, 0x73, 0x63, 0x63, 0x63, 0x73, 0x6e, 0x60, 0x63, 0x3e,
/* 104 */ 0x00, 0x03, 0x03, 0x03, 0x3b, 0x67, 0x63, 0x63, 0x63, 0x63, 0x63, 0x00, 0x00, 0x00,
/* 105 */ 0x00, 0x0c, 0x0c, 0x00, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x38, 0x00, 0x00, 0x00,
/* 106 */ 0x00, 0x30, 0x30, 0x00, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x33, 0x1e,
/* 107 */ 0x00, 0x03, 0x03, 0x03, 0x63, 0x33, 0x1b, 0x0f, 0x1f, 0x33, 0x63, 0x00, 0x00, 0x00,
/* 108 */ 0x00, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x38, 0x00, 0x00, 0x00,
/* 109 */ 0x00, 0x00, 0x00, 0x00, 0x35, 0x6b, 0x6b, 0x6b, 0x6b, 0x6b, 0x6b, 0x00, 0x00, 0x00,
/* 110 */ 0x00, 0x00, 0x00, 0x00, 0x3b, 0x67, 0x63, 0x63, 0x63, 0x63, 0x63, 0x00, 0x00, 0x00,
/* 111 */ 0x00, 0x00, 0x00, 0x00, 0x3e, 0x63, 0x63, 0x63, 0x63, 0x63, 0x3e, 0x00, 0x00, 0x00,
/* 112 */ 0x00, 0x00, 0x00, 0x00, 0x3b, 0x67, 0x63, 0x63, 0x63, 0x67, 0x3b, 0x03, 0x03, 0x03,
/* 113 */ 0x00, 0x00, 0x00, 0x00, 0x6e, 0x73, 0x63, 0x63, 0x63, 0x73, 0x6e, 0x60, 0xe0, 0x60,
/* 114 */ 0x00, 0x00, 0x00, 0x00, 0x3b, 0x67, 0x03, 0x03, 0x03, 0x03, 0x03, 0x00, 0x00, 0x00,
/* 115 */ 0x00, 0x00, 0x00, 0x00, 0x3e, 0x63, 0x0e, 0x38, 0x60, 0x63, 0x3e, 0x00, 0x00, 0x00,
/* 116 */ 0x00, 0x00, 0x0c, 0x0c, 0x3e, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x38, 0x00, 0x00, 0x00,
/* 117 */ 0x00, 0x00, 0x00, 0x00, 0x63, 0x63, 0x63, 0x63, 0x63, 0x73, 0x6e, 0x00, 0x00, 0x00,
/* 118 */ 0x00, 0x00, 0x00, 0x00, 0x63, 0x63, 0x36, 0x36, 0x1c, 0x1c, 0x08, 0x00, 0x00, 0x00,
/* 119 */ 0x00, 0x00, 0x00, 0x00, 0x63, 0x6b, 0x6b, 0x6b, 0x3e, 0x36, 0x36, 0x00, 0x00, 0x00,
/* 120 */ 0x00, 0x00, 0x00, 0x00, 0x63, 0x36, 0x1c, 0x1c, 0x1c, 0x36, 0x63, 0x00, 0x00, 0x00,
/* 121 */ 0x00, 0x00, 0x00, 0x00, 0x63, 0x63, 0x36, 0x36, 0x1c, 0x1c, 0x0c, 0x0c, 0x06, 0x03,
/* 122 */ 0x00, 0x00, 0x00, 0x00, 0x7f, 0x60, 0x30, 0x18, 0x0c, 0x06, 0x7f, 0x00, 0x00, 0x00,
/* 123 */ 0x00, 0x70, 0x18, 0x18, 0x18, 0x18, 0x0e, 0x18, 0x18, 0x18, 0x18, 0x70, 0x00, 0x00,
/* 124 */ 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x00, 0x00,
/* 125 */ 0x00, 0x0e, 0x18, 0x18, 0x18, 0x18, 0x70, 0x18, 0x18, 0x18, 0x18, 0x0e, 0x00, 0x00,
/* 126 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x6e, 0x3b, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
};
STATIC UINT32 mGraphicsEfiColors[16] = {
0x00000000, // BLACK
0x00000098, // LIGHTBLUE
0x00009800, // LIGHTGREEN
0x00009898, // LIGHTCYAN
0x00980000, // LIGHTRED
0x00980098, // MAGENTA
0x00989800, // BROWN
0x00bfbfbf, // LIGHTGRAY
0x00303030, // DARKGRAY - BRIGHT BLACK
0x000000ff, // BLUE
0x0000ff00, // LIME
0x0000ffff, // CYAN
0x00ff0000, // RED
0x00ff00ff, // FUCHSIA
0x00ffff00, // YELLOW
0x00ffffff // WHITE
};
STATIC EFI_GRAPHICS_OUTPUT_PROTOCOL *mGraphicsOutput;
STATIC UINTN mConsoleWidth;
STATIC UINTN mConsoleHeight;
STATIC UINTN mConsoleMaxPosX;
STATIC UINTN mConsoleMaxPosY;
STATIC UINTN mPrivateColumn; ///< At least UEFI Shell trashes Mode values.
STATIC UINTN mPrivateRow; ///< At least UEFI Shell trashes Mode values.
STATIC UINT32 mConsoleGopMode;
STATIC UINT8 mFontScale;
STATIC EFI_GRAPHICS_OUTPUT_BLT_PIXEL_UNION mBackgroundColor;
STATIC EFI_GRAPHICS_OUTPUT_BLT_PIXEL_UNION mForegroundColor;
STATIC EFI_GRAPHICS_OUTPUT_BLT_PIXEL_UNION *mCharacterBuffer;
STATIC EFI_CONSOLE_CONTROL_SCREEN_MODE mConsoleMode = EfiConsoleControlScreenText;
#define SCR_PADD 1
#define TGT_CHAR_WIDTH ((UINTN)(ISO_CHAR_WIDTH) * mFontScale)
#define TGT_CHAR_HEIGHT ((UINTN)(ISO_CHAR_HEIGHT) * mFontScale)
#define TGT_CHAR_AREA ((TGT_CHAR_WIDTH) * (TGT_CHAR_HEIGHT))
#define TGT_PADD_WIDTH ((TGT_CHAR_WIDTH) * (SCR_PADD))
#define TGT_PADD_HEIGHT ((ISO_CHAR_HEIGHT) * (SCR_PADD))
#define TGT_CURSOR_X mFontScale
#define TGT_CURSOR_Y ((TGT_CHAR_HEIGHT) - mFontScale)
#define TGT_CURSOR_WIDTH ((TGT_CHAR_WIDTH) - mFontScale*2)
#define TGT_CURSOR_HEIGHT (mFontScale)
/**
Render character onscreen.
@param[in] Char Character code.
@param[in] PosX Character X position.
@param[in] PosY Character Y position.
**/
STATIC
VOID
RenderChar (
IN CHAR16 Char,
IN UINTN PosX,
IN UINTN PosY
)
{
UINT32 *DstBuffer;
UINT8 *SrcBuffer;
UINT32 Line;
UINT32 Index;
UINT32 Index2;
UINT8 Mask;
DstBuffer = &mCharacterBuffer[0].Raw;
if (((Char >= 0) && (Char < ISO_CHAR_MIN)) || (Char == ' ') || (Char == CHAR_TAB) || (Char == 0x7F)) {
SetMem32 (DstBuffer, TGT_CHAR_AREA * sizeof (DstBuffer[0]), mBackgroundColor.Raw);
} else {
if ((Char < 0) || (Char > ISO_CHAR_MAX)) {
Char = L'_';
}
SrcBuffer = mIsoFontData + ((Char - ISO_CHAR_MIN) * (ISO_CHAR_HEIGHT - 2));
SetMem32 (DstBuffer, TGT_CHAR_WIDTH * mFontScale * sizeof (DstBuffer[0]), mBackgroundColor.Raw);
DstBuffer += TGT_CHAR_WIDTH * mFontScale;
for (Line = 0; Line < ISO_CHAR_HEIGHT - 2; ++Line) {
//
// Iterate, while the single bit drops to the right.
//
for (Index = 0; Index < mFontScale; ++Index) {
Mask = 1;
do {
for (Index2 = 0; Index2 < mFontScale; ++Index2) {
*DstBuffer = (*SrcBuffer & Mask) ? mForegroundColor.Raw : mBackgroundColor.Raw;
++DstBuffer;
}
Mask <<= 1U;
} while (Mask != 0);
}
++SrcBuffer;
}
SetMem32 (DstBuffer, TGT_CHAR_WIDTH * mFontScale * sizeof (DstBuffer[0]), mBackgroundColor.Raw);
}
mGraphicsOutput->Blt (
mGraphicsOutput,
&mCharacterBuffer[0].Pixel,
EfiBltBufferToVideo,
0,
0,
TGT_PADD_WIDTH + PosX * TGT_CHAR_WIDTH,
TGT_PADD_HEIGHT + PosY * TGT_CHAR_HEIGHT,
TGT_CHAR_WIDTH,
TGT_CHAR_HEIGHT,
0
);
}
/**
Swap cursor visibility onscreen.
@param[in] Enabled Whether cursor is visible.
@param[in] PosX Character X position.
@param[in] PosY Character Y position.
**/
STATIC
VOID
FlushCursor (
IN BOOLEAN Enabled,
IN UINTN PosX,
IN UINTN PosY
)
{
EFI_STATUS Status;
EFI_GRAPHICS_OUTPUT_BLT_PIXEL_UNION Colour;
if (!Enabled) {
return;
}
//
// UEFI only has one cursor at a time. UEFI Shell edit command has a cursor and a mouse
// pointer, which are not connected. To be able to draw both at a time UEFI Shell constantly
// redraws both the cursor and the mouse pointer. To do that it constantly flips bg and fg
// colours as well as cursor visibility.
// It seems that the Shell implementation relies on an undocumented feature (is that a bug?)
// of hiding an already drawn cursor with a space with inverted attributes.
// This is weird but EDK II implementation seems to match the logic, and as a result we
// track cursor visibility or easily optimise this logic.
//
Status = mGraphicsOutput->Blt (
mGraphicsOutput,
&Colour.Pixel,
EfiBltVideoToBltBuffer,
TGT_PADD_WIDTH + PosX * TGT_CHAR_WIDTH + TGT_CURSOR_X,
TGT_PADD_HEIGHT + PosY * TGT_CHAR_HEIGHT + TGT_CURSOR_Y,
0,
0,
1,
1,
0
);
if (EFI_ERROR (Status)) {
return;
}
mGraphicsOutput->Blt (
mGraphicsOutput,
Colour.Raw == mForegroundColor.Raw ? &mBackgroundColor.Pixel : &mForegroundColor.Pixel,
EfiBltVideoFill,
0,
0,
TGT_PADD_WIDTH + PosX * TGT_CHAR_WIDTH + TGT_CURSOR_X,
TGT_PADD_HEIGHT + PosY * TGT_CHAR_HEIGHT + TGT_CURSOR_Y,
TGT_CURSOR_WIDTH,
TGT_CURSOR_HEIGHT,
0
);
}
STATIC
VOID
RenderScroll (
VOID
)
{
UINTN Width;
//
// Move used screen region.
//
Width = TGT_PADD_WIDTH + (mConsoleMaxPosX + 1) * TGT_CHAR_WIDTH;
mGraphicsOutput->Blt (
mGraphicsOutput,
NULL,
EfiBltVideoToVideo,
0,
TGT_PADD_HEIGHT + TGT_CHAR_HEIGHT,
0,
TGT_PADD_HEIGHT,
MIN (Width, mGraphicsOutput->Mode->Info->HorizontalResolution),
TGT_CHAR_HEIGHT * (mConsoleHeight - 1),
0
);
//
// Erase last line.
//
mGraphicsOutput->Blt (
mGraphicsOutput,
&mBackgroundColor.Pixel,
EfiBltVideoFill,
0,
0,
0,
TGT_PADD_HEIGHT + TGT_CHAR_HEIGHT * (mConsoleHeight - 1),
MIN (Width, mGraphicsOutput->Mode->Info->HorizontalResolution),
TGT_CHAR_HEIGHT,
0
);
}
//
// Resync - called on detected change of GOP mode and on reset.
//
STATIC
EFI_STATUS
RenderResync (
IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This
)
{
EFI_GRAPHICS_OUTPUT_MODE_INFORMATION *Info;
Info = mGraphicsOutput->Mode->Info;
if ( (Info->HorizontalResolution < TGT_CHAR_WIDTH * (2 * SCR_PADD + 1))
|| (Info->VerticalResolution < TGT_CHAR_HEIGHT * (2 * SCR_PADD + 1)))
{
return EFI_LOAD_ERROR;
}
if (mCharacterBuffer != NULL) {
FreePool (mCharacterBuffer);
}
mCharacterBuffer = AllocatePool (TGT_CHAR_AREA * sizeof (mCharacterBuffer[0]));
if (mCharacterBuffer == NULL) {
return EFI_OUT_OF_RESOURCES;
}
mConsoleGopMode = mGraphicsOutput->Mode->Mode;
mConsoleWidth = (Info->HorizontalResolution / TGT_CHAR_WIDTH) - 2 * SCR_PADD;
mConsoleHeight = (Info->VerticalResolution / TGT_CHAR_HEIGHT) - 2 * SCR_PADD;
mConsoleMaxPosX = 0;
mConsoleMaxPosY = 0;
mPrivateColumn = mPrivateRow = 0;
This->Mode->CursorColumn = This->Mode->CursorRow = 0;
mGraphicsOutput->Blt (
mGraphicsOutput,
&mBackgroundColor.Pixel,
EfiBltVideoFill,
0,
0,
0,
0,
Info->HorizontalResolution,
Info->VerticalResolution,
0
);
return EFI_SUCCESS;
}
STATIC
EFI_STATUS
EFIAPI
AsciiTextResetEx (
IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This,
IN BOOLEAN ExtendedVerification,
IN BOOLEAN Debug
)
{
EFI_STATUS Status;
EFI_TPL OldTpl;
OldTpl = gBS->RaiseTPL (TPL_NOTIFY);
Status = OcHandleProtocolFallback (
gST->ConsoleOutHandle,
&gEfiGraphicsOutputProtocolGuid,
(VOID **)&mGraphicsOutput
);
if (EFI_ERROR (Status)) {
gBS->RestoreTPL (OldTpl);
if (Debug) {
DEBUG ((DEBUG_INFO, "OCC: ASCII Text Reset [HandleProtocolFallback] - %r\n", Status));
return Status;
}
return EFI_DEVICE_ERROR;
}
This->Mode->MaxMode = 1;
This->Mode->Attribute = ARRAY_SIZE (mGraphicsEfiColors) / 2 - 1;
mBackgroundColor.Raw = mGraphicsEfiColors[0];
mForegroundColor.Raw = mGraphicsEfiColors[ARRAY_SIZE (mGraphicsEfiColors) / 2 - 1];
Status = RenderResync (This);
gBS->RestoreTPL (OldTpl);
if (EFI_ERROR (Status)) {
if (Debug) {
DEBUG ((DEBUG_INFO, "OCC: ASCII Text Reset [RenderResync] - %r\n", Status));
return Status;
}
return EFI_DEVICE_ERROR;
}
return EFI_SUCCESS;
}
STATIC
EFI_STATUS
EFIAPI
AsciiTextReset (
IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This,
IN BOOLEAN ExtendedVerification
)
{
EFI_STATUS Status;
Status = AsciiTextResetEx (This, ExtendedVerification, FALSE);
return Status;
}
STATIC
EFI_STATUS
EFIAPI
AsciiTextOutputString (
IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This,
IN CHAR16 *String
)
{
UINTN Index;
EFI_TPL OldTpl;
EFI_STATUS Status;
//
// Do not print text in graphics mode.
//
if (mConsoleMode != EfiConsoleControlScreenText) {
return EFI_UNSUPPORTED;
}
OldTpl = gBS->RaiseTPL (TPL_NOTIFY);
//
// Do not print in different modes.
//
if (mConsoleGopMode != mGraphicsOutput->Mode->Mode) {
Status = RenderResync (This);
if (EFI_ERROR (Status)) {
gBS->RestoreTPL (OldTpl);
return EFI_DEVICE_ERROR;
}
}
//
// For whatever reason UEFI Shell trashes these values when executing commands like help -b.
//
This->Mode->CursorColumn = (INT32)mPrivateColumn;
This->Mode->CursorRow = (INT32)mPrivateRow;
FlushCursor (This->Mode->CursorVisible, This->Mode->CursorColumn, This->Mode->CursorRow);
for (Index = 0; String[Index] != '\0'; ++Index) {
//
// Carriage return should just move the cursor back.
//
if (String[Index] == CHAR_CARRIAGE_RETURN) {
This->Mode->CursorColumn = 0;
continue;
}
if (String[Index] == CHAR_BACKSPACE) {
if ((This->Mode->CursorColumn == 0) && (This->Mode->CursorRow > 0)) {
This->Mode->CursorRow--;
This->Mode->CursorColumn = (INT32)(mConsoleWidth - 1);
RenderChar (' ', This->Mode->CursorColumn, This->Mode->CursorRow);
} else if (This->Mode->CursorColumn > 0) {
This->Mode->CursorColumn--;
RenderChar (' ', This->Mode->CursorColumn, This->Mode->CursorRow);
}
continue;
}
//
// Newline should move the cursor lower.
// In case we are out of room it should scroll instead.
//
if (String[Index] == CHAR_LINEFEED) {
if ((UINTN)This->Mode->CursorRow < mConsoleHeight - 1) {
++This->Mode->CursorRow;
mConsoleMaxPosY = MAX (mConsoleMaxPosY, (UINTN)This->Mode->CursorRow);
} else {
RenderScroll ();
}
continue;
}
//
// Render normal symbol and decide on next cursor position.
//
RenderChar (String[Index], This->Mode->CursorColumn, This->Mode->CursorRow);
if ((UINTN)This->Mode->CursorColumn < mConsoleWidth - 1) {
//
// Continues on the same line.
//
++This->Mode->CursorColumn;
mConsoleMaxPosX = MAX (mConsoleMaxPosX, (UINTN)This->Mode->CursorColumn);
} else if ((UINTN)This->Mode->CursorRow < mConsoleHeight - 1) {
//
// New line without scroll.
//
This->Mode->CursorColumn = 0;
++This->Mode->CursorRow;
mConsoleMaxPosY = MAX (mConsoleMaxPosY, (UINTN)This->Mode->CursorRow);
} else {
//
// New line with scroll.
//
RenderScroll ();
This->Mode->CursorColumn = 0;
}
}
FlushCursor (This->Mode->CursorVisible, This->Mode->CursorColumn, This->Mode->CursorRow);
mPrivateColumn = (UINTN)This->Mode->CursorColumn;
mPrivateRow = (UINTN)This->Mode->CursorRow;
gBS->RestoreTPL (OldTpl);
return EFI_SUCCESS;
}
STATIC
EFI_STATUS
EFIAPI
AsciiTextTestString (
IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This,
IN CHAR16 *String
)
{
if (StrCmp (String, OC_CONSOLE_MARK_UNCONTROLLED) == 0) {
//
// Set values which intentionally slightly overflow the screen clear calculations
// and get clamped to full screen.
//
mConsoleMaxPosX = mGraphicsOutput->Mode->Info->HorizontalResolution / TGT_CHAR_WIDTH;
mConsoleMaxPosY = mGraphicsOutput->Mode->Info->VerticalResolution / TGT_CHAR_HEIGHT;
} else if (StrCmp (String, OC_CONSOLE_MARK_CONTROLLED) == 0) {
mConsoleMaxPosX = 0;
mConsoleMaxPosY = 0;
}
return EFI_SUCCESS;
}
STATIC
EFI_STATUS
EFIAPI
AsciiTextQueryMode (
IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This,
IN UINTN ModeNumber,
OUT UINTN *Columns,
OUT UINTN *Rows
)
{
EFI_STATUS Status;
EFI_TPL OldTpl;
OldTpl = gBS->RaiseTPL (TPL_NOTIFY);
if (mConsoleGopMode != mGraphicsOutput->Mode->Mode) {
Status = RenderResync (This);
if (EFI_ERROR (Status)) {
gBS->RestoreTPL (OldTpl);
return EFI_DEVICE_ERROR;
}
}
if (ModeNumber == 0) {
*Columns = mConsoleWidth;
*Rows = mConsoleHeight;
Status = EFI_SUCCESS;
} else {
Status = EFI_UNSUPPORTED;
}
gBS->RestoreTPL (OldTpl);
return Status;
}
STATIC
EFI_STATUS
EFIAPI
AsciiTextSetMode (
IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This,
IN UINTN ModeNumber
)
{
EFI_STATUS Status;
EFI_TPL OldTpl;
if (ModeNumber != 0) {
return EFI_UNSUPPORTED;
}
if (mConsoleGopMode != mGraphicsOutput->Mode->Mode) {
OldTpl = gBS->RaiseTPL (TPL_NOTIFY);
Status = RenderResync (This);
gBS->RestoreTPL (OldTpl);
if (EFI_ERROR (Status)) {
return EFI_DEVICE_ERROR;
}
}
return EFI_SUCCESS;
}
STATIC
EFI_STATUS
EFIAPI
AsciiTextSetAttribute (
IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This,
IN UINTN Attribute
)
{
EFI_STATUS Status;
UINT32 FgColor;
UINT32 BgColor;
EFI_TPL OldTpl;
if ((Attribute & ~0x7FU) != 0) {
return EFI_UNSUPPORTED;
}
OldTpl = gBS->RaiseTPL (TPL_NOTIFY);
if (mConsoleGopMode != mGraphicsOutput->Mode->Mode) {
Status = RenderResync (This);
if (EFI_ERROR (Status)) {
gBS->RestoreTPL (OldTpl);
return EFI_DEVICE_ERROR;
}
}
if (Attribute != (UINTN)This->Mode->Attribute) {
FlushCursor (This->Mode->CursorVisible, mPrivateColumn, mPrivateRow);
FgColor = BitFieldRead32 ((UINT32)Attribute, 0, 3);
BgColor = BitFieldRead32 ((UINT32)Attribute, 4, 6);
//
// Once we change the background colour, any clear screen must cover the whole screen.
//
if (mGraphicsEfiColors[BgColor] != mBackgroundColor.Raw) {
//
// Match uncontrolled values.
//
mConsoleMaxPosX = mGraphicsOutput->Mode->Info->HorizontalResolution / TGT_CHAR_WIDTH;
mConsoleMaxPosY = mGraphicsOutput->Mode->Info->VerticalResolution / TGT_CHAR_HEIGHT;
}
mForegroundColor.Raw = mGraphicsEfiColors[FgColor];
mBackgroundColor.Raw = mGraphicsEfiColors[BgColor];
This->Mode->Attribute = (UINT32)Attribute;
FlushCursor (This->Mode->CursorVisible, mPrivateColumn, mPrivateRow);
}
gBS->RestoreTPL (OldTpl);
return EFI_SUCCESS;
}
//
// Note: This intentionally performs a partial screen clear, affecting only the
// area containing text which has been written using our renderer, unless console
// is marked uncontrolled prior to clearing.
//
STATIC
EFI_STATUS
EFIAPI
AsciiTextClearScreen (
IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This
)
{
EFI_STATUS Status;
UINTN Width;
UINTN Height;
EFI_TPL OldTpl;
OldTpl = gBS->RaiseTPL (TPL_NOTIFY);
//
// No need to re-clear screen straight after resync; but note that the initial screen
// clear after reset, although of non-zero size, is intentionally very lightweight.
//
if (mConsoleGopMode != mGraphicsOutput->Mode->Mode) {
Status = RenderResync (This);
if (EFI_ERROR (Status)) {
gBS->RestoreTPL (OldTpl);
return EFI_DEVICE_ERROR;
}
} else {
//
// When controlled, we assume that only text which we rendered needs to be cleared.
// When marked uncontrolled anyone may have put content anywhere (in particular, graphics)
// so always clear full screen.
// mConsoleMaxPosX,Y coordinates are the top left coordinates of the of the greatest
// occupied character position. Because there is a cursor, there is always at least
// one character position occupied.
//
Width = TGT_PADD_WIDTH + (mConsoleMaxPosX + 1) * TGT_CHAR_WIDTH;
Height = TGT_PADD_HEIGHT + (mConsoleMaxPosY + 1) * TGT_CHAR_HEIGHT;
mGraphicsOutput->Blt (
mGraphicsOutput,
&mBackgroundColor.Pixel,
EfiBltVideoFill,
0,
0,
0,
0,
MIN (Width, mGraphicsOutput->Mode->Info->HorizontalResolution),
MIN (Height, mGraphicsOutput->Mode->Info->VerticalResolution),
0
);
}
//
// Handle cursor.
//
mPrivateColumn = mPrivateRow = 0;
This->Mode->CursorColumn = This->Mode->CursorRow = 0;
FlushCursor (This->Mode->CursorVisible, mPrivateColumn, mPrivateRow);
//
// After clear screen, shell may scroll through old text via page up/down buttons,
// but it is okay to reset max x/y here anyway, as any old text is brought on via
// full redraw.
//
mConsoleMaxPosX = 0;
mConsoleMaxPosY = 0;
gBS->RestoreTPL (OldTpl);
return EFI_SUCCESS;
}
STATIC
EFI_STATUS
EFIAPI
AsciiTextSetCursorPosition (
IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This,
IN UINTN Column,
IN UINTN Row
)
{
EFI_STATUS Status;
EFI_TPL OldTpl;
OldTpl = gBS->RaiseTPL (TPL_NOTIFY);
if (mConsoleGopMode != mGraphicsOutput->Mode->Mode) {
Status = RenderResync (This);
if (EFI_ERROR (Status)) {
gBS->RestoreTPL (OldTpl);
return EFI_DEVICE_ERROR;
}
}
if ((Column < mConsoleWidth) && (Row < mConsoleHeight)) {
FlushCursor (This->Mode->CursorVisible, mPrivateColumn, mPrivateRow);
mPrivateColumn = Column;
mPrivateRow = Row;
This->Mode->CursorColumn = (INT32)mPrivateColumn;
This->Mode->CursorRow = (INT32)mPrivateRow;
FlushCursor (This->Mode->CursorVisible, mPrivateColumn, mPrivateRow);
mConsoleMaxPosX = MAX (mConsoleMaxPosX, Column);
mConsoleMaxPosY = MAX (mConsoleMaxPosY, Row);
Status = EFI_SUCCESS;
} else {
Status = EFI_UNSUPPORTED;
}
gBS->RestoreTPL (OldTpl);
return Status;
}
STATIC
EFI_STATUS
EFIAPI
AsciiTextEnableCursor (
IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This,
IN BOOLEAN Visible
)
{
EFI_STATUS Status;
EFI_TPL OldTpl;
OldTpl = gBS->RaiseTPL (TPL_NOTIFY);
if (mConsoleGopMode != mGraphicsOutput->Mode->Mode) {
Status = RenderResync (This);
if (EFI_ERROR (Status)) {
gBS->RestoreTPL (OldTpl);
return EFI_DEVICE_ERROR;
}
}
FlushCursor (This->Mode->CursorVisible, mPrivateColumn, mPrivateRow);
This->Mode->CursorVisible = Visible;
FlushCursor (This->Mode->CursorVisible, mPrivateColumn, mPrivateRow);
gBS->RestoreTPL (OldTpl);
return EFI_SUCCESS;
}
STATIC
EFI_SIMPLE_TEXT_OUTPUT_MODE
mAsciiTextOutputMode;
STATIC
EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL
mAsciiTextOutputProtocol = {
AsciiTextReset,
AsciiTextOutputString,
AsciiTextTestString,
AsciiTextQueryMode,
AsciiTextSetMode,
AsciiTextSetAttribute,
AsciiTextClearScreen,
AsciiTextSetCursorPosition,
AsciiTextEnableCursor,
&mAsciiTextOutputMode
};
STATIC
EFI_STATUS
EFIAPI
ConsoleControlGetMode (
IN EFI_CONSOLE_CONTROL_PROTOCOL *This,
OUT EFI_CONSOLE_CONTROL_SCREEN_MODE *Mode,
OUT BOOLEAN *GopUgaExists OPTIONAL,
OUT BOOLEAN *StdInLocked OPTIONAL
)
{
*Mode = mConsoleMode;
if (GopUgaExists != NULL) {
*GopUgaExists = TRUE;
}
if (StdInLocked != NULL) {
*StdInLocked = FALSE;
}
return EFI_SUCCESS;
}
STATIC
EFI_STATUS
EFIAPI
ConsoleControlSetMode (
IN EFI_CONSOLE_CONTROL_PROTOCOL *This,
IN EFI_CONSOLE_CONTROL_SCREEN_MODE Mode
)
{
mConsoleMode = Mode;
return EFI_SUCCESS;
}
STATIC
EFI_STATUS
EFIAPI
ConsoleControlLockStdIn (
IN EFI_CONSOLE_CONTROL_PROTOCOL *This,
IN CHAR16 *Password
)
{
return EFI_DEVICE_ERROR;
}
STATIC
EFI_CONSOLE_CONTROL_PROTOCOL
mConsoleControlProtocol = {
ConsoleControlGetMode,
ConsoleControlSetMode,
ConsoleControlLockStdIn
};
VOID
ConsoleControlInstall (
VOID
)
{
EFI_STATUS Status;
EFI_CONSOLE_CONTROL_PROTOCOL *ConsoleControl;
Status = OcHandleProtocolFallback (
&gST->ConsoleOutHandle,
&gEfiConsoleControlProtocolGuid,
(VOID *)&ConsoleControl
);
if (!EFI_ERROR (Status)) {
ConsoleControl->SetMode (ConsoleControl, EfiConsoleControlScreenGraphics);
CopyMem (
ConsoleControl,
&mConsoleControlProtocol,
sizeof (mConsoleControlProtocol)
);
}
gBS->InstallMultipleProtocolInterfaces (
&gST->ConsoleOutHandle,
&gEfiConsoleControlProtocolGuid,
&mConsoleControlProtocol,
NULL
);
}
EFI_STATUS
OcUseBuiltinTextOutput (
IN EFI_CONSOLE_CONTROL_SCREEN_MODE Mode
)
{
EFI_STATUS Status;
UINTN UiScaleSize;
UiScaleSize = sizeof (mFontScale);
Status = gRT->GetVariable (
APPLE_UI_SCALE_VARIABLE_NAME,
&gAppleVendorVariableGuid,
NULL,
&UiScaleSize,
(VOID *)&mFontScale
);
if (EFI_ERROR (Status) || (mFontScale != 2)) {
mFontScale = 1;
}
DEBUG ((DEBUG_INFO, "OCC: Using builtin text renderer with %d scale\n", mFontScale));
Status = AsciiTextResetEx (&mAsciiTextOutputProtocol, TRUE, TRUE);
if (!EFI_ERROR (Status)) {
OcConsoleControlSetMode (Mode);
OcConsoleControlInstallProtocol (&mConsoleControlProtocol, NULL, NULL);
gST->ConOut = &mAsciiTextOutputProtocol;
gST->Hdr.CRC32 = 0;
gBS->CalculateCrc32 (
gST,
gST->Hdr.HeaderSize,
&gST->Hdr.CRC32
);
}
DEBUG ((DEBUG_INFO, "OCC: Setup ASCII Output - %r\n", Status));
return Status;
}
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