1 | /* $Id: UIVideoMemoryEditor.cpp 80394 2019-08-23 13:02:30Z vboxsync $ */
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2 | /** @file
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3 | * VBox Qt GUI - UIVideoMemoryEditor class implementation.
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4 | */
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5 |
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6 | /*
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7 | * Copyright (C) 2019 Oracle Corporation
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8 | *
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9 | * This file is part of VirtualBox Open Source Edition (OSE), as
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10 | * available from http://www.virtualbox.org. This file is free software;
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11 | * you can redistribute it and/or modify it under the terms of the GNU
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12 | * General Public License (GPL) as published by the Free Software
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13 | * Foundation, in version 2 as it comes in the "COPYING" file of the
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14 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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15 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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16 | */
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17 |
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18 | /* Qt includes: */
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19 | #include <QGridLayout>
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20 | #include <QHBoxLayout>
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21 | #include <QLabel>
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22 | #include <QSpinBox>
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23 | #include <QVBoxLayout>
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24 |
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25 | /* GUI includes: */
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26 | #include "QIAdvancedSlider.h"
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27 | #include "UICommon.h"
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28 | #include "UIVideoMemoryEditor.h"
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29 | #include "VBox2DHelpers.h"
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30 |
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31 | /* COM includes: */
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32 | #include "CSystemProperties.h"
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33 |
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34 |
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35 | UIVideoMemoryEditor::UIVideoMemoryEditor(QWidget *pParent /* = 0 */, bool fWithLabel /* = false */)
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36 | : QIWithRetranslateUI<QWidget>(pParent)
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37 | , m_fWithLabel(fWithLabel)
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38 | , m_comGuestOSType(CGuestOSType())
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39 | , m_cGuestScreenCount(1)
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40 | , m_enmGraphicsControllerType(KGraphicsControllerType_Null)
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41 | #ifdef VBOX_WITH_3D_ACCELERATION
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42 | , m_f3DAccelerationSupported(false)
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43 | , m_f3DAccelerationEnabled(false)
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44 | #endif
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45 | #ifdef VBOX_WITH_VIDEOHWACCEL
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46 | , m_f2DVideoAccelerationSupported(false)
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47 | , m_f2DVideoAccelerationEnabled(false)
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48 | #endif
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49 | , m_iMinVRAM(0)
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50 | , m_iMaxVRAM(0)
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51 | , m_iMaxVRAMVisible(0)
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52 | , m_iInitialVRAM(0)
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53 | , m_pLabelMemory(0)
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54 | , m_pSlider(0)
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55 | , m_pLabelMemoryMin(0)
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56 | , m_pLabelMemoryMax(0)
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57 | , m_pSpinBox(0)
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58 | {
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59 | prepare();
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60 | }
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61 |
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62 | void UIVideoMemoryEditor::setValue(int iValue)
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63 | {
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64 | if (m_pSlider)
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65 | {
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66 | m_iInitialVRAM = RT_MIN(iValue, m_iMaxVRAM);
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67 | m_pSlider->setValue(m_iInitialVRAM);
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68 | }
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69 | }
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70 |
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71 | int UIVideoMemoryEditor::value() const
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72 | {
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73 | return m_pSlider ? m_pSlider->value() : 0;
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74 | }
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75 |
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76 | void UIVideoMemoryEditor::setGuestOSType(const CGuestOSType &comGuestOSType)
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77 | {
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78 | /* Check if guest OS type really changed: */
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79 | if (m_comGuestOSType == comGuestOSType)
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80 | return;
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81 |
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82 | /* Remember new guest OS type: */
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83 | m_comGuestOSType = comGuestOSType;
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84 |
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85 | /* Update requirements: */
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86 | updateRequirements();
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87 | }
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88 |
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89 | void UIVideoMemoryEditor::setGuestScreenCount(int cGuestScreenCount)
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90 | {
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91 | /* Check if guest screen count really changed: */
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92 | if (m_cGuestScreenCount == cGuestScreenCount)
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93 | return;
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94 |
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95 | /* Remember new guest screen count: */
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96 | m_cGuestScreenCount = cGuestScreenCount;
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97 |
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98 | /* Update requirements: */
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99 | updateRequirements();
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100 | }
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101 |
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102 | void UIVideoMemoryEditor::setGraphicsControllerType(const KGraphicsControllerType &enmGraphicsControllerType)
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103 | {
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104 | /* Check if graphics controller type really changed: */
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105 | if (m_enmGraphicsControllerType == enmGraphicsControllerType)
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106 | return;
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107 |
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108 | /* Remember new graphics controller type: */
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109 | m_enmGraphicsControllerType = enmGraphicsControllerType;
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110 |
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111 | /* Update requirements: */
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112 | updateRequirements();
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113 | }
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114 |
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115 | #ifdef VBOX_WITH_3D_ACCELERATION
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116 | void UIVideoMemoryEditor::set3DAccelerationSupported(bool fSupported)
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117 | {
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118 | /* Check if 3D acceleration really changed: */
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119 | if (m_f3DAccelerationSupported == fSupported)
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120 | return;
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121 |
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122 | /* Remember new 3D acceleration: */
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123 | m_f3DAccelerationSupported = fSupported;
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124 |
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125 | /* Update requirements: */
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126 | updateRequirements();
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127 | }
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128 |
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129 | void UIVideoMemoryEditor::set3DAccelerationEnabled(bool fEnabled)
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130 | {
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131 | /* Check if 3D acceleration really changed: */
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132 | if (m_f3DAccelerationEnabled == fEnabled)
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133 | return;
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134 |
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135 | /* Remember new 3D acceleration: */
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136 | m_f3DAccelerationEnabled = fEnabled;
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137 |
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138 | /* Update requirements: */
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139 | updateRequirements();
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140 | }
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141 | #endif /* VBOX_WITH_3D_ACCELERATION */
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142 |
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143 | #ifdef VBOX_WITH_VIDEOHWACCEL
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144 | void UIVideoMemoryEditor::set2DVideoAccelerationSupported(bool fSupported)
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145 | {
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146 | /* Check if 2D video acceleration really changed: */
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147 | if (m_f2DVideoAccelerationSupported == fSupported)
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148 | return;
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149 |
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150 | /* Remember new 2D video acceleration: */
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151 | m_f2DVideoAccelerationSupported = fSupported;
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152 |
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153 | /* Update requirements: */
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154 | updateRequirements();
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155 | }
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156 |
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157 | void UIVideoMemoryEditor::set2DVideoAccelerationEnabled(bool fEnabled)
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158 | {
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159 | /* Check if 2D video acceleration really changed: */
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160 | if (m_f2DVideoAccelerationEnabled == fEnabled)
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161 | return;
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162 |
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163 | /* Remember new 2D video acceleration: */
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164 | m_f2DVideoAccelerationEnabled = fEnabled;
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165 |
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166 | /* Update requirements: */
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167 | updateRequirements();
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168 | }
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169 | #endif /* VBOX_WITH_VIDEOHWACCEL */
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170 |
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171 | void UIVideoMemoryEditor::retranslateUi()
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172 | {
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173 | if (m_pLabelMemory)
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174 | m_pLabelMemory->setText(tr("Video &Memory:"));
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175 | if (m_pLabelMemoryMin)
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176 | m_pLabelMemoryMin->setText(tr("%1 MB").arg(m_iMinVRAM));
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177 | if (m_pLabelMemoryMax)
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178 | m_pLabelMemoryMax->setText(tr("%1 MB").arg(m_iMaxVRAMVisible));
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179 | if (m_pSpinBox)
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180 | m_pSpinBox->setSuffix(QString(" %1").arg(tr("MB")));
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181 | }
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182 |
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183 | void UIVideoMemoryEditor::sltHandleSliderChange()
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184 | {
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185 | /* Apply spin-box value keeping it's signals disabled: */
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186 | if (m_pSpinBox && m_pSlider)
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187 | {
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188 | m_pSpinBox->blockSignals(true);
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189 | m_pSpinBox->setValue(m_pSlider->value());
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190 | m_pSpinBox->blockSignals(false);
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191 | }
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192 |
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193 | /* Revalidate to send signal to listener: */
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194 | revalidate();
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195 | }
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196 |
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197 | void UIVideoMemoryEditor::sltHandleSpinBoxChange()
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198 | {
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199 | /* Apply slider value keeping it's signals disabled: */
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200 | if (m_pSpinBox && m_pSlider)
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201 | {
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202 | m_pSlider->blockSignals(true);
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203 | m_pSlider->setValue(m_pSpinBox->value());
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204 | m_pSlider->blockSignals(false);
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205 | }
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206 |
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207 | /* Revalidate to send signal to listener: */
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208 | revalidate();
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209 | }
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210 |
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211 | void UIVideoMemoryEditor::prepare()
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212 | {
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213 | /* Prepare common variables: */
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214 | const CSystemProperties comProperties = uiCommon().virtualBox().GetSystemProperties();
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215 | m_iMinVRAM = comProperties.GetMinGuestVRAM();
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216 | m_iMaxVRAM = comProperties.GetMaxGuestVRAM();
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217 | m_iMaxVRAMVisible = m_iMaxVRAM;
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218 |
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219 | /* Create main layout: */
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220 | QGridLayout *pMainLayout = new QGridLayout(this);
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221 | if (pMainLayout)
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222 | {
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223 | pMainLayout->setContentsMargins(0, 0, 0, 0);
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224 | int iRow = 0;
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225 |
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226 | /* Create memory label: */
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227 | if (m_fWithLabel)
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228 | m_pLabelMemory = new QLabel(this);
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229 | if (m_pLabelMemory)
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230 | pMainLayout->addWidget(m_pLabelMemory, 0, iRow++, 1, 1);
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231 |
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232 | /* Create slider layout: */
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233 | QVBoxLayout *pSliderLayout = new QVBoxLayout;
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234 | if (pSliderLayout)
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235 | {
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236 | pSliderLayout->setContentsMargins(0, 0, 0, 0);
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237 |
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238 | /* Create memory slider: */
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239 | m_pSlider = new QIAdvancedSlider(this);
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240 | if (m_pSlider)
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241 | {
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242 | m_pSlider->setMinimum(m_iMinVRAM);
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243 | m_pSlider->setMaximum(m_iMaxVRAMVisible);
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244 | m_pSlider->setPageStep(calculatePageStep(m_iMaxVRAMVisible));
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245 | m_pSlider->setSingleStep(m_pSlider->pageStep() / 4);
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246 | m_pSlider->setTickInterval(m_pSlider->pageStep());
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247 | m_pSlider->setSnappingEnabled(true);
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248 | m_pSlider->setErrorHint(0, 1);
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249 | m_pSlider->setMinimumWidth(150);
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250 | connect(m_pSlider, &QIAdvancedSlider::valueChanged,
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251 | this, &UIVideoMemoryEditor::sltHandleSliderChange);
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252 | pSliderLayout->addWidget(m_pSlider);
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253 | }
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254 |
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255 | /* Create legend layout: */
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256 | QHBoxLayout *pLegendLayout = new QHBoxLayout;
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257 | if (pLegendLayout)
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258 | {
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259 | pLegendLayout->setContentsMargins(0, 0, 0, 0);
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260 |
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261 | /* Create min label: */
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262 | m_pLabelMemoryMin = new QLabel(this);
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263 | if (m_pLabelMemoryMin)
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264 | pLegendLayout->addWidget(m_pLabelMemoryMin);
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265 |
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266 | /* Push labels from each other: */
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267 | pLegendLayout->addStretch();
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268 |
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269 | /* Create max label: */
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270 | m_pLabelMemoryMax = new QLabel(this);
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271 | if (m_pLabelMemoryMax)
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272 | pLegendLayout->addWidget(m_pLabelMemoryMax);
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273 |
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274 | /* Add legend layout to slider layout: */
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275 | pSliderLayout->addLayout(pLegendLayout);
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276 | }
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277 |
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278 | /* Add slider layout to main layout: */
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279 | pMainLayout->addLayout(pSliderLayout, 0, iRow++, 2, 1);
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280 | }
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281 |
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282 | /* Create memory spin-box: */
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283 | m_pSpinBox = new QSpinBox(this);
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284 | if (m_pSpinBox)
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285 | {
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286 | setFocusProxy(m_pSpinBox);
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287 | if (m_pLabelMemory)
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288 | m_pLabelMemory->setBuddy(m_pSpinBox);
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289 | m_pSpinBox->setMinimum(m_iMinVRAM);
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290 | m_pSpinBox->setMaximum(m_iMaxVRAMVisible);
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291 | connect(m_pSpinBox, static_cast<void(QSpinBox::*)(int)>(&QSpinBox::valueChanged),
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292 | this, &UIVideoMemoryEditor::sltHandleSpinBoxChange);
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293 | pMainLayout->addWidget(m_pSpinBox, 0, iRow++, 1, 1);
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294 | }
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295 | }
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296 |
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297 | /* Apply language settings: */
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298 | retranslateUi();
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299 | }
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300 |
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301 | void UIVideoMemoryEditor::updateRequirements()
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302 | {
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303 | /* Make sure guest OS type is set: */
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304 | if (m_comGuestOSType.isNull())
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305 | return;
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306 |
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307 | /* Get monitors count and base video memory requirements: */
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308 | quint64 uNeedMBytes = UICommon::requiredVideoMemory(m_comGuestOSType.GetId(), m_cGuestScreenCount) / _1M;
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309 |
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310 | /* Initial value: */
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311 | m_iMaxVRAMVisible = m_cGuestScreenCount * 32;
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312 |
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313 | /* No more than m_iMaxVRAM: */
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314 | if (m_iMaxVRAMVisible > m_iMaxVRAM)
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315 | m_iMaxVRAMVisible = m_iMaxVRAM;
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316 |
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317 | /* No less than 128MB (if possible): */
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318 | if (m_iMaxVRAMVisible < 128 && m_iMaxVRAM >= 128)
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319 | m_iMaxVRAMVisible = 128;
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320 |
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321 | /* No less than initial VRAM size (wtf?): */
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322 | if (m_iMaxVRAMVisible < m_iInitialVRAM)
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323 | m_iMaxVRAMVisible = m_iInitialVRAM;
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324 |
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325 | #ifdef VBOX_WITH_3D_ACCELERATION
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326 | if (m_f3DAccelerationEnabled && m_f3DAccelerationSupported)
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327 | {
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328 | uNeedMBytes = qMax(uNeedMBytes, (quint64)128);
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329 | /* No less than 256MB (if possible): */
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330 | if (m_iMaxVRAMVisible < 256 && m_iMaxVRAM >= 256)
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331 | m_iMaxVRAMVisible = 256;
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332 | }
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333 | #endif
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334 |
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335 | #ifdef VBOX_WITH_VIDEOHWACCEL
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336 | if (m_f2DVideoAccelerationEnabled && m_f2DVideoAccelerationSupported)
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337 | {
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338 | uNeedMBytes += VBox2DHelpers::required2DOffscreenVideoMemory() / _1M;
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339 | }
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340 | #endif
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341 |
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342 | if (m_pSpinBox)
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343 | m_pSpinBox->setMaximum(m_iMaxVRAMVisible);
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344 | if (m_pSlider)
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345 | {
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346 | m_pSlider->setMaximum(m_iMaxVRAMVisible);
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347 | m_pSlider->setPageStep(calculatePageStep(m_iMaxVRAMVisible));
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348 | m_pSlider->setWarningHint(1, qMin((int)uNeedMBytes, m_iMaxVRAMVisible));
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349 | m_pSlider->setOptimalHint(qMin((int)uNeedMBytes, m_iMaxVRAMVisible), m_iMaxVRAMVisible);
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350 | }
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351 | if (m_pLabelMemoryMax)
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352 | m_pLabelMemoryMax->setText(tr("%1 MB").arg(m_iMaxVRAMVisible));
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353 | }
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354 |
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355 | void UIVideoMemoryEditor::revalidate()
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356 | {
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357 | if (m_pSlider)
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358 | emit sigValidChanged( m_enmGraphicsControllerType == KGraphicsControllerType_Null
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359 | || m_pSlider->value() > 0);
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360 | }
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361 |
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362 | /* static */
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363 | int UIVideoMemoryEditor::calculatePageStep(int iMax)
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364 | {
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365 | /* Reasonable max. number of page steps is 32. */
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366 | const uint uPage = ((uint)iMax + 31) / 32;
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367 | /* Make it a power of 2: */
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368 | uint uP = uPage, p2 = 0x1;
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369 | while ((uP >>= 1))
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370 | p2 <<= 1;
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371 | if (uPage != p2)
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372 | p2 <<= 1;
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373 | if (p2 < 4)
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374 | p2 = 4;
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375 | return (int)p2;
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376 | }
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