1 | /* $Id: VBoxVgaGraphicsOutput.c 106061 2024-09-16 14:03:52Z vboxsync $ */
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2 | /** @file
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3 | * VBoxVgaGraphicsOutput.c
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4 | */
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5 |
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6 | /*
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7 | * Copyright (C) 2009-2024 Oracle and/or its affiliates.
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8 | *
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9 | * This file is part of VirtualBox base platform packages, as
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10 | * available from https://www.virtualbox.org.
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11 | *
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12 | * This program is free software; you can redistribute it and/or
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13 | * modify it under the terms of the GNU General Public License
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14 | * as published by the Free Software Foundation, in version 3 of the
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15 | * License.
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16 | *
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17 | * This program is distributed in the hope that it will be useful, but
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18 | * WITHOUT ANY WARRANTY; without even the implied warranty of
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19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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20 | * General Public License for more details.
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21 | *
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22 | * You should have received a copy of the GNU General Public License
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23 | * along with this program; if not, see <https://www.gnu.org/licenses>.
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24 | *
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25 | * The contents of this file may alternatively be used under the terms
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26 | * of the Common Development and Distribution License Version 1.0
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27 | * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
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28 | * in the VirtualBox distribution, in which case the provisions of the
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29 | * CDDL are applicable instead of those of the GPL.
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30 | *
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31 | * You may elect to license modified versions of this file under the
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32 | * terms and conditions of either the GPL or the CDDL or both.
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33 | *
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34 | * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
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35 | */
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36 |
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37 | /*
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38 | This code is based on:
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39 |
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40 | Copyright (c) 2007, Intel Corporation
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41 | All rights reserved. This program and the accompanying materials
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42 | are licensed and made available under the terms and conditions of the BSD License
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43 | which accompanies this distribution. The full text of the license may be found at
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44 | http://opensource.org/licenses/bsd-license.php
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45 |
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46 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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47 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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48 |
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49 | Module Name:
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50 |
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51 | UefiVBoxVgaGraphicsOutput.c
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52 |
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53 | Abstract:
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54 |
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55 | This file produces the graphics abstraction of Graphics Output Protocol. It is called by
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56 | VBoxVga.c file which deals with the EFI 1.1 driver model.
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57 | This file just does graphics.
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58 |
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59 | */
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60 | #include "VBoxVga.h"
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61 | #include <IndustryStandard/Acpi.h>
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62 |
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63 |
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64 | STATIC
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65 | VOID
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66 | VBoxVgaCompleteModeInfo (
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67 | OUT EFI_GRAPHICS_OUTPUT_MODE_INFORMATION *Info
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68 | )
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69 | {
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70 | Info->Version = 0;
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71 | Info->PixelFormat = PixelBlueGreenRedReserved8BitPerColor;
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72 | Info->PixelsPerScanLine = Info->HorizontalResolution;
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73 | }
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74 |
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75 |
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76 | STATIC
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77 | EFI_STATUS
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78 | VBoxVgaCompleteModeData (
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79 | IN VBOX_VGA_PRIVATE_DATA *Private,
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80 | OUT EFI_GRAPHICS_OUTPUT_PROTOCOL_MODE *Mode
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81 | )
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82 | {
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83 | EFI_GRAPHICS_OUTPUT_MODE_INFORMATION *Info;
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84 | EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR *FrameBufDesc;
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85 |
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86 | Info = Mode->Info;
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87 | VBoxVgaCompleteModeInfo (Info);
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88 |
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89 | Private->PciIo->GetBarAttributes (
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90 | Private->PciIo,
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91 | Private->BarIndexFB,
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92 | NULL,
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93 | (VOID**) &FrameBufDesc
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94 | );
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95 |
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96 | DEBUG((DEBUG_INFO, "%a:%d FrameBufferBase:%x\n", __FILE__, __LINE__, FrameBufDesc->AddrRangeMin));
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97 | Mode->FrameBufferBase = FrameBufDesc->AddrRangeMin;
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98 | Mode->FrameBufferSize = Info->PixelsPerScanLine * Info->VerticalResolution
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99 | * sizeof(EFI_GRAPHICS_OUTPUT_BLT_PIXEL); /* 32bpp only! */
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100 |
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101 | return EFI_SUCCESS;
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102 | }
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103 |
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104 |
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105 | //
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106 | // Graphics Output Protocol Member Functions
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107 | //
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108 | EFI_STATUS
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109 | EFIAPI
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110 | VBoxVgaGraphicsOutputQueryMode (
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111 | IN EFI_GRAPHICS_OUTPUT_PROTOCOL *This,
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112 | IN UINT32 ModeNumber,
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113 | OUT UINTN *SizeOfInfo,
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114 | OUT EFI_GRAPHICS_OUTPUT_MODE_INFORMATION **Info
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115 | )
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116 | /*++
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117 |
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118 | Routine Description:
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119 |
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120 | Graphics Output protocol interface to query video mode
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121 |
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122 | Arguments:
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123 | This - Protocol instance pointer.
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124 | ModeNumber - The mode number to return information on.
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125 | Info - Caller allocated buffer that returns information about ModeNumber.
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126 | SizeOfInfo - A pointer to the size, in bytes, of the Info buffer.
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127 |
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128 | Returns:
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129 | EFI_SUCCESS - Mode information returned.
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130 | EFI_BUFFER_TOO_SMALL - The Info buffer was too small.
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131 | EFI_DEVICE_ERROR - A hardware error occurred trying to retrieve the video mode.
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132 | EFI_NOT_STARTED - Video display is not initialized. Call SetMode ()
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133 | EFI_INVALID_PARAMETER - One of the input args was NULL.
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134 |
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135 | --*/
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136 | {
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137 | VBOX_VGA_PRIVATE_DATA *Private;
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138 |
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139 | Private = VBOX_VGA_PRIVATE_DATA_FROM_GRAPHICS_OUTPUT_THIS (This);
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140 |
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141 | if (Private->HardwareNeedsStarting) {
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142 | return EFI_NOT_STARTED;
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143 | }
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144 |
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145 | if (Info == NULL || SizeOfInfo == NULL || ModeNumber >= This->Mode->MaxMode) {
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146 | return EFI_INVALID_PARAMETER;
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147 | }
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148 |
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149 | *Info = AllocatePool (sizeof (EFI_GRAPHICS_OUTPUT_MODE_INFORMATION));
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150 | if (*Info == NULL) {
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151 | return EFI_OUT_OF_RESOURCES;
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152 | }
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153 |
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154 | *SizeOfInfo = sizeof (EFI_GRAPHICS_OUTPUT_MODE_INFORMATION);
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155 |
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156 | (*Info)->HorizontalResolution = Private->ModeData[ModeNumber].HorizontalResolution;
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157 | (*Info)->VerticalResolution = Private->ModeData[ModeNumber].VerticalResolution;
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158 | VBoxVgaCompleteModeInfo (*Info);
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159 |
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160 | return EFI_SUCCESS;
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161 | }
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162 |
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163 | EFI_STATUS
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164 | EFIAPI
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165 | VBoxVgaGraphicsOutputSetMode (
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166 | IN EFI_GRAPHICS_OUTPUT_PROTOCOL *This,
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167 | IN UINT32 ModeNumber
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168 | )
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169 | /*++
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170 |
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171 | Routine Description:
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172 |
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173 | Graphics Output protocol interface to set video mode
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174 |
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175 | Arguments:
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176 | This - Protocol instance pointer.
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177 | ModeNumber - The mode number to be set.
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178 |
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179 | Returns:
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180 | EFI_SUCCESS - Graphics mode was changed.
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181 | EFI_DEVICE_ERROR - The device had an error and could not complete the request.
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182 | EFI_UNSUPPORTED - ModeNumber is not supported by this device.
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183 |
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184 | --*/
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185 | {
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186 | VBOX_VGA_PRIVATE_DATA *Private;
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187 | VBOX_VGA_MODE_DATA *ModeData;
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188 |
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189 | Private = VBOX_VGA_PRIVATE_DATA_FROM_GRAPHICS_OUTPUT_THIS (This);
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190 |
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191 | DEBUG((DEBUG_INFO, "%a:%d mode:%d\n", __FILE__, __LINE__, ModeNumber));
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192 | if (ModeNumber >= This->Mode->MaxMode) {
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193 | return EFI_UNSUPPORTED;
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194 | }
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195 |
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196 | ModeData = &Private->ModeData[ModeNumber];
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197 |
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198 | InitializeGraphicsMode (Private, &VBoxVgaVideoModes[ModeData->ModeNumber]);
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199 |
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200 | This->Mode->Mode = ModeNumber;
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201 | This->Mode->Info->HorizontalResolution = ModeData->HorizontalResolution;
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202 | This->Mode->Info->VerticalResolution = ModeData->VerticalResolution;
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203 | This->Mode->SizeOfInfo = sizeof(EFI_GRAPHICS_OUTPUT_MODE_INFORMATION);
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204 |
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205 | VBoxVgaCompleteModeData (Private, This->Mode);
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206 |
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207 | Private->HardwareNeedsStarting = FALSE;
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208 | /* update current mode */
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209 | Private->CurrentMode = ModeNumber;
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210 |
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211 | return EFI_SUCCESS;
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212 | }
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213 |
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214 | EFI_STATUS
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215 | EFIAPI
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216 | VBoxVgaGraphicsOutputBlt (
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217 | IN EFI_GRAPHICS_OUTPUT_PROTOCOL *This,
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218 | IN EFI_GRAPHICS_OUTPUT_BLT_PIXEL *BltBuffer, OPTIONAL
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219 | IN EFI_GRAPHICS_OUTPUT_BLT_OPERATION BltOperation,
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220 | IN UINTN SourceX,
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221 | IN UINTN SourceY,
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222 | IN UINTN DestinationX,
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223 | IN UINTN DestinationY,
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224 | IN UINTN Width,
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225 | IN UINTN Height,
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226 | IN UINTN Delta
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227 | )
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228 | /*++
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229 |
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230 | Routine Description:
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231 |
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232 | Graphics Output protocol instance to block transfer for CirrusLogic device
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233 |
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234 | Arguments:
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235 |
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236 | This - Pointer to Graphics Output protocol instance
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237 | BltBuffer - The data to transfer to screen
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238 | BltOperation - The operation to perform
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239 | SourceX - The X coordinate of the source for BltOperation
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240 | SourceY - The Y coordinate of the source for BltOperation
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241 | DestinationX - The X coordinate of the destination for BltOperation
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242 | DestinationY - The Y coordinate of the destination for BltOperation
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243 | Width - The width of a rectangle in the blt rectangle in pixels
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244 | Height - The height of a rectangle in the blt rectangle in pixels
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245 | Delta - Not used for EfiBltVideoFill and EfiBltVideoToVideo operation.
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246 | If a Delta of 0 is used, the entire BltBuffer will be operated on.
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247 | If a subrectangle of the BltBuffer is used, then Delta represents
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248 | the number of bytes in a row of the BltBuffer.
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249 |
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250 | Returns:
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251 |
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252 | EFI_INVALID_PARAMETER - Invalid parameter passed in
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253 | EFI_SUCCESS - Blt operation success
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254 |
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255 | --*/
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256 | {
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257 | VBOX_VGA_PRIVATE_DATA *Private;
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258 | EFI_TPL OriginalTPL;
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259 | UINTN DstY;
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260 | UINTN SrcY;
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261 | UINT32 CurrentMode;
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262 | UINTN ScreenWidth;
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263 | UINTN ScreenHeight;
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264 | EFI_STATUS Status;
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265 |
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266 | Private = VBOX_VGA_PRIVATE_DATA_FROM_GRAPHICS_OUTPUT_THIS (This);
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267 | CurrentMode = This->Mode->Mode;
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268 | ScreenWidth = Private->ModeData[CurrentMode].HorizontalResolution;
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269 | ScreenHeight = Private->ModeData[CurrentMode].VerticalResolution;
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270 |
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271 | if ((BltOperation < 0) || (BltOperation >= EfiGraphicsOutputBltOperationMax)) {
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272 | return EFI_INVALID_PARAMETER;
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273 | }
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274 | if (Width == 0 || Height == 0) {
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275 | return EFI_INVALID_PARAMETER;
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276 | }
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277 |
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278 | //
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279 | // If Delta is zero, then the entire BltBuffer is being used, so Delta
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280 | // is the number of bytes in each row of BltBuffer. Since BltBuffer is Width pixels size,
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281 | // the number of bytes in each row can be computed.
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282 | //
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283 | if (Delta == 0) {
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284 | Delta = Width * sizeof(EFI_GRAPHICS_OUTPUT_BLT_PIXEL);
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285 | }
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286 | // code below assumes a Delta value in pixels, not bytes
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287 | Delta /= sizeof(EFI_GRAPHICS_OUTPUT_BLT_PIXEL);
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288 |
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289 | //
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290 | // Make sure the SourceX, SourceY, DestinationX, DestinationY, Width, and Height parameters
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291 | // are valid for the operation and the current screen geometry.
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292 | //
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293 | if (BltOperation == EfiBltVideoToBltBuffer || BltOperation == EfiBltVideoToVideo) {
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294 | if (SourceY + Height > ScreenHeight) {
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295 | return EFI_INVALID_PARAMETER;
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296 | }
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297 |
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298 | if (SourceX + Width > ScreenWidth) {
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299 | return EFI_INVALID_PARAMETER;
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300 | }
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301 | }
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302 | if (BltOperation == EfiBltBufferToVideo || BltOperation == EfiBltVideoToVideo || BltOperation == EfiBltVideoFill) {
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303 | if (DestinationY + Height > ScreenHeight) {
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304 | return EFI_INVALID_PARAMETER;
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305 | }
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306 |
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307 | if (DestinationX + Width > ScreenWidth) {
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308 | return EFI_INVALID_PARAMETER;
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309 | }
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310 | }
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311 |
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312 | //
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313 | // We have to raise to TPL Notify, so we make an atomic write the frame buffer.
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314 | // We would not want a timer based event (Cursor, ...) to come in while we are
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315 | // doing this operation.
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316 | //
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317 | OriginalTPL = gBS->RaiseTPL (TPL_NOTIFY);
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318 |
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319 | switch (BltOperation) {
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320 | case EfiBltVideoToBltBuffer:
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321 | //
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322 | // Video to BltBuffer: Source is Video, destination is BltBuffer
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323 | //
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324 | for (SrcY = SourceY, DstY = DestinationY; DstY < (Height + DestinationY) && BltBuffer; SrcY++, DstY++) {
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325 | /// @todo assumes that color depth is 32 (*4, EfiPciIoWidthUint32) and format matches EFI_GRAPHICS_OUTPUT_BLT_PIXEL
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326 | Status = Private->PciIo->Mem.Read (
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327 | Private->PciIo,
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328 | EfiPciIoWidthUint32,
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329 | Private->BarIndexFB,
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330 | ((SrcY * ScreenWidth) + SourceX) * 4,
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331 | Width,
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332 | BltBuffer + (DstY * Delta) + DestinationX
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333 | );
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334 | ASSERT_EFI_ERROR((Status));
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335 | }
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336 | break;
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337 |
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338 | case EfiBltBufferToVideo:
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339 | //
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340 | // BltBuffer to Video: Source is BltBuffer, destination is Video
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341 | //
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342 | for (SrcY = SourceY, DstY = DestinationY; SrcY < (Height + SourceY); SrcY++, DstY++) {
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343 | /// @todo assumes that color depth is 32 (*4, EfiPciIoWidthUint32) and format matches EFI_GRAPHICS_OUTPUT_BLT_PIXEL
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344 | Status = Private->PciIo->Mem.Write (
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345 | Private->PciIo,
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346 | EfiPciIoWidthUint32,
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347 | Private->BarIndexFB,
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348 | ((DstY * ScreenWidth) + DestinationX) * 4,
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349 | Width,
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350 | BltBuffer + (SrcY * Delta) + SourceX
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351 | );
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352 | ASSERT_EFI_ERROR((Status));
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353 | }
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354 | break;
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355 |
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356 | case EfiBltVideoToVideo:
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357 | //
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358 | // Video to Video: Source is Video, destination is Video
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359 | //
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360 | if (DestinationY <= SourceY) {
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361 | // forward copy
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362 | for (SrcY = SourceY, DstY = DestinationY; SrcY < (Height + SourceY); SrcY++, DstY++) {
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363 | /// @todo assumes that color depth is 32 (*4, EfiPciIoWidthUint32) and format matches EFI_GRAPHICS_OUTPUT_BLT_PIXEL
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364 | Status = Private->PciIo->CopyMem (
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365 | Private->PciIo,
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366 | EfiPciIoWidthUint32,
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367 | Private->BarIndexFB,
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368 | ((DstY * ScreenWidth) + DestinationX) * 4,
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369 | Private->BarIndexFB,
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370 | ((SrcY * ScreenWidth) + SourceX) * 4,
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371 | Width
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372 | );
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373 | ASSERT_EFI_ERROR((Status));
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374 | }
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375 | } else {
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376 | // reverse copy
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377 | for (SrcY = SourceY + Height - 1, DstY = DestinationY + Height - 1; SrcY >= SourceY && SrcY <= SourceY + Height - 1; SrcY--, DstY--) {
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378 | /// @todo assumes that color depth is 32 (*4, EfiPciIoWidthUint32) and format matches EFI_GRAPHICS_OUTPUT_BLT_PIXEL
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379 | Status = Private->PciIo->CopyMem (
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380 | Private->PciIo,
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381 | EfiPciIoWidthUint32,
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382 | Private->BarIndexFB,
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383 | ((DstY * ScreenWidth) + DestinationX) * 4,
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384 | Private->BarIndexFB,
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385 | ((SrcY * ScreenWidth) + SourceX) * 4,
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386 | Width
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387 | );
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388 | ASSERT_EFI_ERROR((Status));
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389 | }
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390 | }
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391 | break;
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392 |
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393 | case EfiBltVideoFill:
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394 | //
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395 | // Video Fill: Source is BltBuffer, destination is Video
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396 | //
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397 | if (DestinationX == 0 && Width == ScreenWidth) {
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398 | /// @todo assumes that color depth is 32 (*4, EfiPciIoWidthFillUint32) and format matches EFI_GRAPHICS_OUTPUT_BLT_PIXEL
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399 | Status = Private->PciIo->Mem.Write (
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400 | Private->PciIo,
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401 | EfiPciIoWidthFillUint32,
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402 | Private->BarIndexFB,
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403 | DestinationY * ScreenWidth * 4,
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404 | (Width * Height),
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405 | BltBuffer
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406 | );
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407 | ASSERT_EFI_ERROR((Status));
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408 | } else {
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409 | for (SrcY = SourceY, DstY = DestinationY; SrcY < (Height + SourceY); SrcY++, DstY++) {
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410 | /// @todo assumes that color depth is 32 (*4, EfiPciIoWidthFillUint32) and format matches EFI_GRAPHICS_OUTPUT_BLT_PIXEL
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411 | Status = Private->PciIo->Mem.Write (
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412 | Private->PciIo,
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413 | EfiPciIoWidthFillUint32,
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414 | Private->BarIndexFB,
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415 | ((DstY * ScreenWidth) + DestinationX) * 4,
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416 | Width,
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417 | BltBuffer
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418 | );
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419 | ASSERT_EFI_ERROR((Status));
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420 | }
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421 | }
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422 | break;
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423 |
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424 | default:
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425 | ASSERT (FALSE);
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426 | }
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427 |
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428 | gBS->RestoreTPL (OriginalTPL);
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429 |
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430 | return EFI_SUCCESS;
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431 | }
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432 |
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433 | EFI_STATUS
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434 | VBoxVgaGraphicsOutputConstructor (
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435 | VBOX_VGA_PRIVATE_DATA *Private
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436 | )
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437 | {
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438 | EFI_STATUS Status;
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439 | EFI_GRAPHICS_OUTPUT_PROTOCOL *GraphicsOutput;
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440 | UINT32 Index;
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441 | UINT32 HorizontalResolution = 1024;
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442 | UINT32 VerticalResolution = 768;
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443 | UINT32 ColorDepth = 32;
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444 |
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445 | DEBUG((DEBUG_INFO, "%a:%d construct\n", __FILE__, __LINE__));
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446 |
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447 | GraphicsOutput = &Private->GraphicsOutput;
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448 | GraphicsOutput->QueryMode = VBoxVgaGraphicsOutputQueryMode;
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449 | GraphicsOutput->SetMode = VBoxVgaGraphicsOutputSetMode;
|
---|
450 | GraphicsOutput->Blt = VBoxVgaGraphicsOutputBlt;
|
---|
451 |
|
---|
452 | //
|
---|
453 | // Initialize the private data
|
---|
454 | //
|
---|
455 | Status = gBS->AllocatePool (
|
---|
456 | EfiBootServicesData,
|
---|
457 | sizeof (EFI_GRAPHICS_OUTPUT_PROTOCOL_MODE),
|
---|
458 | (VOID **) &Private->GraphicsOutput.Mode
|
---|
459 | );
|
---|
460 | if (EFI_ERROR (Status)) {
|
---|
461 | return Status;
|
---|
462 | }
|
---|
463 | Status = gBS->AllocatePool (
|
---|
464 | EfiBootServicesData,
|
---|
465 | sizeof (EFI_GRAPHICS_OUTPUT_MODE_INFORMATION),
|
---|
466 | (VOID **) &Private->GraphicsOutput.Mode->Info
|
---|
467 | );
|
---|
468 | if (EFI_ERROR (Status)) {
|
---|
469 | return Status;
|
---|
470 | }
|
---|
471 | Private->GraphicsOutput.Mode->MaxMode = (UINT32) Private->MaxMode;
|
---|
472 | Private->GraphicsOutput.Mode->Mode = GRAPHICS_OUTPUT_INVALIDE_MODE_NUMBER;
|
---|
473 | Private->HardwareNeedsStarting = TRUE;
|
---|
474 |
|
---|
475 | //
|
---|
476 | // Initialize the hardware
|
---|
477 | //
|
---|
478 | VBoxVgaGetVmVariable(EFI_INFO_INDEX_HORIZONTAL_RESOLUTION, (CHAR8 *)&HorizontalResolution,
|
---|
479 | sizeof(HorizontalResolution));
|
---|
480 | VBoxVgaGetVmVariable(EFI_INFO_INDEX_VERTICAL_RESOLUTION, (CHAR8 *)&VerticalResolution,
|
---|
481 | sizeof(VerticalResolution));
|
---|
482 | for (Index = 0; Index < Private->MaxMode; Index++)
|
---|
483 | {
|
---|
484 | if ( HorizontalResolution == Private->ModeData[Index].HorizontalResolution
|
---|
485 | && VerticalResolution == Private->ModeData[Index].VerticalResolution
|
---|
486 | && ColorDepth == Private->ModeData[Index].ColorDepth)
|
---|
487 | break;
|
---|
488 | }
|
---|
489 | // not found? try mode number
|
---|
490 | if (Index >= Private->MaxMode)
|
---|
491 | {
|
---|
492 | VBoxVgaGetVmVariable(EFI_INFO_INDEX_GRAPHICS_MODE, (CHAR8 *)&Index, sizeof(Index));
|
---|
493 | // try with mode 2 (usually 1024x768) as a fallback
|
---|
494 | if (Index >= Private->MaxMode)
|
---|
495 | Index = 2;
|
---|
496 | // try with mode 0 (usually 640x480) as a fallback
|
---|
497 | if (Index >= Private->MaxMode)
|
---|
498 | Index = 0;
|
---|
499 | }
|
---|
500 |
|
---|
501 | // skip mode setting completely if there is no valid mode
|
---|
502 | if (Index >= Private->MaxMode)
|
---|
503 | return EFI_UNSUPPORTED;
|
---|
504 |
|
---|
505 | GraphicsOutput->SetMode (GraphicsOutput, Index);
|
---|
506 |
|
---|
507 | DrawLogo (
|
---|
508 | Private,
|
---|
509 | Private->ModeData[Private->GraphicsOutput.Mode->Mode].HorizontalResolution,
|
---|
510 | Private->ModeData[Private->GraphicsOutput.Mode->Mode].VerticalResolution
|
---|
511 | );
|
---|
512 |
|
---|
513 | PcdSet32S(PcdVideoHorizontalResolution, Private->ModeData[Private->GraphicsOutput.Mode->Mode].HorizontalResolution);
|
---|
514 | PcdSet32S(PcdVideoVerticalResolution, Private->ModeData[Private->GraphicsOutput.Mode->Mode].VerticalResolution);
|
---|
515 |
|
---|
516 | return EFI_SUCCESS;
|
---|
517 | }
|
---|
518 |
|
---|
519 | EFI_STATUS
|
---|
520 | VBoxVgaGraphicsOutputDestructor (
|
---|
521 | VBOX_VGA_PRIVATE_DATA *Private
|
---|
522 | )
|
---|
523 | /*++
|
---|
524 |
|
---|
525 | Routine Description:
|
---|
526 |
|
---|
527 | Arguments:
|
---|
528 |
|
---|
529 | Returns:
|
---|
530 |
|
---|
531 | None
|
---|
532 |
|
---|
533 | --*/
|
---|
534 | {
|
---|
535 | if (Private->GraphicsOutput.Mode != NULL) {
|
---|
536 | if (Private->GraphicsOutput.Mode->Info != NULL) {
|
---|
537 | gBS->FreePool (Private->GraphicsOutput.Mode->Info);
|
---|
538 | }
|
---|
539 | gBS->FreePool (Private->GraphicsOutput.Mode);
|
---|
540 | }
|
---|
541 |
|
---|
542 | return EFI_SUCCESS;
|
---|
543 | }
|
---|
544 |
|
---|