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1 #include <string>
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2
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3 #include "GammaControl.h"
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4 #include "Render.h"
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5
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6 #include "mm7_data.h"
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7
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8
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9
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10 //----- (0044F324) --------------------------------------------------------
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11 void GammaController::GetRamp()
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12 {
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13 if (pGammaControl)
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14 ErrD3D(pGammaControl->GetGammaRamp(0, &pDefaultRamp));
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15 else
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16 MessageBoxW(nullptr, L"Gamma control not active", L"E:\\WORK\\MSDEV\\MM7\\MM7\\Code\\GammaControl.cpp:83", 0);
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17 }
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18
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19 //----- (0044F377) --------------------------------------------------------
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20 double GammaController::_44F377(DDGAMMARAMP *a1)
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21 {
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22 double v2; // st7@1
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23 unsigned __int16 *v3; // ecx@1
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24 double v4; // st6@2
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25 double result; // st7@7
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26 signed int v6; // [sp+0h] [bp-8h]@1
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27 signed int v7; // [sp+4h] [bp-4h]@1
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28
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29 v7 = 0;
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30 v2 = 0.0;
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31 v6 = 256;
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32 v3 = a1->green;
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33 do
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34 {
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35 v4 = ((double)*(v3 - 256) + (double)v3[256] + (double)*v3) * 0.000015259022 * 0.33333334;
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36 if ( v4 == 0.0 )
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37 --v6;
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38 else
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39 v2 = v2 + (double)v7 * 0.0039215689 / v4;
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40 ++v7;
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41 ++v3;
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42 }
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43 while ( v7 < 256 );
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44 if ( v6 )
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45 result = v2 / (double)v6;
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46 else
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47 result = 1.0;
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48 return result;
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49 }
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50
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51 //----- (0044F408) --------------------------------------------------------
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52 void GammaController::SetGammaRamp(DDGAMMARAMP *pRamp)
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53 {
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54 if (pGammaControl)
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55 ErrD3D(pGammaControl->SetGammaRamp(0, pRamp));
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56 else
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57 MessageBoxW(nullptr, L"Gamma control not active", L"E:\\WORK\\MSDEV\\MM7\\MM7\\Code\\GammaControl.cpp:120", 0);
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58 }
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59
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60 //----- (0044F45B) --------------------------------------------------------
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61 int GammaController::InitGammaRamp(DDGAMMARAMP *pRamp)
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62 {
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63 unsigned __int16 *v2; // esi@1
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64 double v3; // st7@2
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65 signed __int64 v4; // qax@3
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66 signed int v6; // [sp+Ch] [bp-4h]@1
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67
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68 v6 = 0;
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69 v2 = pRamp->green;
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70 do
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71 {
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72 v3 = (double)v6 * 0.0039215689 * this->fGamma;
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73 if ( v3 >= 1.0 || (v4 = (signed __int64)(v3 * 65535.0), (signed int)v4 > 65535) )
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1421
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74 {
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75 LODWORD(v4) = 65535;
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76 }
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77 else if ( (signed int)v4 < 0 )
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0
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78 {
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79 LODWORD(v4) = 0;
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80 }
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1421
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81 else
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82 {
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0
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83 if ( (signed int)v4 > 65535 )
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84 LODWORD(v4) = 65535;
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1421
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85 }
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0
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86 ++v6;
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87 v2[256] = v4;
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88 *v2 = v4;
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89 *(v2 - 256) = v4;
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90 ++v2;
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91 }
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92 while ( v6 < 256 );
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93 return v4;
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94 }
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95
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96 //----- (0044F4D9) --------------------------------------------------------
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97 void GammaController::Initialize(float gamma)
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98 {
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99 GammaController *v2; // esi@1
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100 double v3; // st7@3
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101 double v4; // st6@4
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102
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103 v2 = this;
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2152
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104 //if (pVersion->pVersionInfo.dwPlatformId != VER_PLATFORM_WIN32_NT ||
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105 //pVersion->pVersionInfo.dwMajorVersion != 4)
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0
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106 {
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107 InitializeFromSurface(pRenderer->pFrontBuffer4);
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108 v3 = 2.8;
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109 if ( gamma <= 2.8f )
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110 v4 = gamma;
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111 else
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112 v4 = 2.8;
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113 if ( v4 >= 0.1f )
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114 {
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115 if ( gamma <= 2.8f )
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116 v3 = gamma;
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117 }
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118 else
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119 {
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120 v3 = 0.1;
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121 }
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122 v2->fGamma = v3;
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123 InitGammaRamp(&v2->field_60C);
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124 SetGammaRamp(&v2->field_60C);
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125 }
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126 }
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127
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128
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129
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130
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131
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132 //----- (0044F215) --------------------------------------------------------
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133 GammaController::GammaController()
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134 {
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135 static float flt_4D8670_default_gamma = 1.0f;
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136
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137 pGammaControl = nullptr;
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138 fGamma = flt_4D8670_default_gamma;
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139 }
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140
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141
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142
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143 //----- (0044F24B) --------------------------------------------------------
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144 void GammaController::InitializeFromSurface(IDirectDrawSurface4 *a2)
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145 {
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146 GammaController *v2; // esi@1
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147 IDirectDrawGammaControl **v3; // edi@1
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148 IDirectDrawGammaControl *v4; // eax@1
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149
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150 v2 = this;
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151 v3 = &this->pGammaControl;
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152 this->pSurface = a2;
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153 v4 = this->pGammaControl;
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154 if ( v4 )
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155 {
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156 v4->Release();
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157 *v3 = 0;
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158 }
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2154
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159 if ( pRenderer->IsGammaSupported() )
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0
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160 {
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161 ErrD3D(a2->QueryInterface(IID_IDirectDrawGammaControl, (LPVOID *)v3));
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162 GetRamp();
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163 memcpy(&v2->field_60C, &v2->pDefaultRamp, 0x600u);
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164 fGamma = _44F377(&v2->field_60C);
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165 }
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166 } |
