Mercurial > mm7
annotate GammaControl.cpp @ 2484:cc7019a533fc
Fixing dereferencing of an integer instead of a pointer to it
| author | Grumpy7 |
|---|---|
| date | Sat, 06 Sep 2014 21:45:26 +0200 |
| parents | f4af3b203f65 |
| children |
| rev | line source |
|---|---|
| 2415 | 1 #define _CRTDBG_MAP_ALLOC |
| 2 #include <stdlib.h> | |
| 3 #include <crtdbg.h> | |
| 4 | |
|
2253
aff7a7b072b7
adding _CRT_SECURE_NO_WARNINGS to get rid of a few hundrer annoying warnings + adding count parameter to swprintf
Grumpy7
parents:
2154
diff
changeset
|
5 #define _CRT_SECURE_NO_WARNINGS |
| 0 | 6 #include <string> |
| 7 | |
| 8 #include "GammaControl.h" | |
| 9 #include "Render.h" | |
| 10 | |
| 11 #include "mm7_data.h" | |
| 12 | |
| 13 | |
| 14 | |
| 15 //----- (0044F324) -------------------------------------------------------- | |
| 16 void GammaController::GetRamp() | |
| 17 { | |
| 18 if (pGammaControl) | |
| 19 ErrD3D(pGammaControl->GetGammaRamp(0, &pDefaultRamp)); | |
| 20 else | |
| 21 MessageBoxW(nullptr, L"Gamma control not active", L"E:\\WORK\\MSDEV\\MM7\\MM7\\Code\\GammaControl.cpp:83", 0); | |
| 22 } | |
| 23 | |
| 24 //----- (0044F377) -------------------------------------------------------- | |
| 25 double GammaController::_44F377(DDGAMMARAMP *a1) | |
| 26 { | |
| 27 double v2; // st7@1 | |
| 28 unsigned __int16 *v3; // ecx@1 | |
| 29 double v4; // st6@2 | |
| 30 signed int v6; // [sp+0h] [bp-8h]@1 | |
| 31 signed int v7; // [sp+4h] [bp-4h]@1 | |
| 32 | |
| 33 v2 = 0.0; | |
| 34 v6 = 256; | |
| 35 v3 = a1->green; | |
| 2268 | 36 for ( v7 = 0; v7 < 256; ++v7 ) |
| 0 | 37 { |
| 38 v4 = ((double)*(v3 - 256) + (double)v3[256] + (double)*v3) * 0.000015259022 * 0.33333334; | |
| 39 if ( v4 == 0.0 ) | |
| 40 --v6; | |
| 41 else | |
| 42 v2 = v2 + (double)v7 * 0.0039215689 / v4; | |
| 43 ++v3; | |
| 44 } | |
| 45 if ( v6 ) | |
| 2268 | 46 return v2 / (double)v6; |
| 0 | 47 else |
| 2268 | 48 return 1.0; |
| 0 | 49 } |
| 50 | |
| 51 //----- (0044F408) -------------------------------------------------------- | |
| 52 void GammaController::SetGammaRamp(DDGAMMARAMP *pRamp) | |
| 53 { | |
| 54 if (pGammaControl) | |
| 55 ErrD3D(pGammaControl->SetGammaRamp(0, pRamp)); | |
| 56 else | |
| 57 MessageBoxW(nullptr, L"Gamma control not active", L"E:\\WORK\\MSDEV\\MM7\\MM7\\Code\\GammaControl.cpp:120", 0); | |
| 58 } | |
| 59 | |
| 60 //----- (0044F45B) -------------------------------------------------------- | |
| 61 int GammaController::InitGammaRamp(DDGAMMARAMP *pRamp) | |
| 62 { | |
| 63 unsigned __int16 *v2; // esi@1 | |
| 64 double v3; // st7@2 | |
| 65 signed __int64 v4; // qax@3 | |
| 66 signed int v6; // [sp+Ch] [bp-4h]@1 | |
| 67 | |
| 68 v2 = pRamp->green; | |
| 2268 | 69 for ( v6 = 0; v6 < 256; ++v6 ) |
| 0 | 70 { |
| 71 v3 = (double)v6 * 0.0039215689 * this->fGamma; | |
| 72 if ( v3 >= 1.0 || (v4 = (signed __int64)(v3 * 65535.0), (signed int)v4 > 65535) ) | |
| 2268 | 73 LODWORD(v4) = 65535; |
| 1421 | 74 else if ( (signed int)v4 < 0 ) |
| 0 | 75 LODWORD(v4) = 0; |
| 1421 | 76 else |
| 77 { | |
| 0 | 78 if ( (signed int)v4 > 65535 ) |
| 79 LODWORD(v4) = 65535; | |
| 1421 | 80 } |
| 0 | 81 v2[256] = v4; |
| 82 *v2 = v4; | |
| 83 *(v2 - 256) = v4; | |
| 84 ++v2; | |
| 85 } | |
| 86 return v4; | |
| 87 } | |
| 88 | |
| 89 //----- (0044F4D9) -------------------------------------------------------- | |
| 90 void GammaController::Initialize(float gamma) | |
| 91 { | |
| 92 double v3; // st7@3 | |
| 93 double v4; // st6@4 | |
| 94 | |
| 2152 | 95 //if (pVersion->pVersionInfo.dwPlatformId != VER_PLATFORM_WIN32_NT || |
| 96 //pVersion->pVersionInfo.dwMajorVersion != 4) | |
| 0 | 97 { |
| 98 InitializeFromSurface(pRenderer->pFrontBuffer4); | |
| 99 v3 = 2.8; | |
| 100 if ( gamma <= 2.8f ) | |
| 101 v4 = gamma; | |
| 102 else | |
| 103 v4 = 2.8; | |
| 104 if ( v4 >= 0.1f ) | |
| 105 { | |
| 106 if ( gamma <= 2.8f ) | |
| 107 v3 = gamma; | |
| 108 } | |
| 109 else | |
| 110 v3 = 0.1; | |
| 2268 | 111 this->fGamma = v3; |
| 112 InitGammaRamp(&this->field_60C); | |
| 113 SetGammaRamp(&this->field_60C); | |
| 0 | 114 } |
| 115 } | |
| 116 | |
| 117 //----- (0044F215) -------------------------------------------------------- | |
| 118 GammaController::GammaController() | |
| 119 { | |
| 120 static float flt_4D8670_default_gamma = 1.0f; | |
| 121 | |
| 122 pGammaControl = nullptr; | |
| 123 fGamma = flt_4D8670_default_gamma; | |
| 124 } | |
| 125 | |
| 126 //----- (0044F24B) -------------------------------------------------------- | |
| 127 void GammaController::InitializeFromSurface(IDirectDrawSurface4 *a2) | |
| 128 { | |
| 129 this->pSurface = a2; | |
| 2268 | 130 if ( this->pGammaControl ) |
| 0 | 131 { |
| 2268 | 132 this->pGammaControl->Release(); |
| 133 this->pGammaControl = 0; | |
| 0 | 134 } |
| 2154 | 135 if ( pRenderer->IsGammaSupported() ) |
| 0 | 136 { |
| 2268 | 137 ErrD3D(a2->QueryInterface(IID_IDirectDrawGammaControl, (LPVOID *)&this->pGammaControl)); |
| 0 | 138 GetRamp(); |
| 2268 | 139 memcpy(&this->field_60C, &this->pDefaultRamp, 0x600u); |
| 140 fGamma = _44F377(&this->field_60C); | |
| 0 | 141 } |
| 142 } |