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2496
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1 #define _CRTDBG_MAP_ALLOC
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2 #include <stdlib.h>
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3 #include <crtdbg.h>
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4
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5 #define _CRT_SECURE_NO_WARNINGS
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6 #include <string>
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7
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8 #include "GammaControl.h"
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9 #include "Render.h"
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10
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11 #include "mm7_data.h"
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12
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13
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14
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15 //----- (0044F324) --------------------------------------------------------
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16 void GammaController::GetRamp()
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17 {
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18 if (pGammaControl)
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19 ErrD3D(pGammaControl->GetGammaRamp(0, &pDefaultRamp));
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20 else
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21 MessageBoxW(nullptr, L"Gamma control not active", L"E:\\WORK\\MSDEV\\MM7\\MM7\\Code\\GammaControl.cpp:83", 0);
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22 }
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23
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24 //----- (0044F377) --------------------------------------------------------
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25 double GammaController::_44F377(DDGAMMARAMP *a1)
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26 {
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27 double v2; // st7@1
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28 unsigned __int16 *v3; // ecx@1
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29 double v4; // st6@2
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30 signed int v6; // [sp+0h] [bp-8h]@1
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31 signed int v7; // [sp+4h] [bp-4h]@1
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32
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33 v2 = 0.0;
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34 v6 = 256;
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35 v3 = a1->green;
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36 for ( v7 = 0; v7 < 256; ++v7 )
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37 {
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38 v4 = ((double)*(v3 - 256) + (double)v3[256] + (double)*v3) * 0.000015259022 * 0.33333334;
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39 if ( v4 == 0.0 )
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40 --v6;
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41 else
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42 v2 = v2 + (double)v7 * 0.0039215689 / v4;
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43 ++v3;
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44 }
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45 if ( v6 )
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46 return v2 / (double)v6;
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47 else
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48 return 1.0;
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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 v2 = pRamp->green;
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69 for ( v6 = 0; v6 < 256; ++v6 )
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70 {
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71 v3 = (double)v6 * 0.0039215689 * this->fGamma;
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72 if ( v3 >= 1.0 || (v4 = (signed __int64)(v3 * 65535.0), (signed int)v4 > 65535) )
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73 LODWORD(v4) = 65535;
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74 else if ( (signed int)v4 < 0 )
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75 LODWORD(v4) = 0;
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76 else
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77 {
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78 if ( (signed int)v4 > 65535 )
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79 LODWORD(v4) = 65535;
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80 }
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81 v2[256] = v4;
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82 *v2 = v4;
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83 *(v2 - 256) = v4;
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84 ++v2;
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85 }
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86 return v4;
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87 }
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88
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89 //----- (0044F4D9) --------------------------------------------------------
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90 void GammaController::Initialize(float gamma)
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91 {
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92 double v3; // st7@3
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93 double v4; // st6@4
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94
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95 //if (pVersion->pVersionInfo.dwPlatformId != VER_PLATFORM_WIN32_NT ||
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96 //pVersion->pVersionInfo.dwMajorVersion != 4)
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97 {
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98 InitializeFromSurface(pRenderer->pFrontBuffer4);
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99 v3 = 2.8;
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100 if ( gamma <= 2.8f )
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101 v4 = gamma;
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102 else
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103 v4 = 2.8;
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104 if ( v4 >= 0.1f )
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105 {
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106 if ( gamma <= 2.8f )
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107 v3 = gamma;
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108 }
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109 else
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110 v3 = 0.1;
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111 this->fGamma = v3;
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112 InitGammaRamp(&this->field_60C);
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113 SetGammaRamp(&this->field_60C);
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114 }
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115 }
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116
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117 //----- (0044F215) --------------------------------------------------------
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118 GammaController::GammaController()
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119 {
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120 static float flt_4D8670_default_gamma = 1.0f;
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121
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122 pGammaControl = nullptr;
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123 fGamma = flt_4D8670_default_gamma;
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124 }
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125
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126 //----- (0044F24B) --------------------------------------------------------
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127 void GammaController::InitializeFromSurface(IDirectDrawSurface4 *a2)
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128 {
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129 this->pSurface = a2;
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130 if ( this->pGammaControl )
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131 {
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132 this->pGammaControl->Release();
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133 this->pGammaControl = 0;
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134 }
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135 if ( pRenderer->IsGammaSupported() )
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136 {
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137 ErrD3D(a2->QueryInterface(IID_IDirectDrawGammaControl, (LPVOID *)&this->pGammaControl));
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138 GetRamp();
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139 memcpy(&this->field_60C, &this->pDefaultRamp, 0x600u);
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140 fGamma = _44F377(&this->field_60C);
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141 }
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142 } |
