Mercurial > mm7
diff GammaControl.cpp @ 0:9c0607679772
init
author | Ritor1 |
---|---|
date | Sat, 12 Jan 2013 09:45:18 +0600 |
parents | |
children | 4fff79f04dbd |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/GammaControl.cpp Sat Jan 12 09:45:18 2013 +0600 @@ -0,0 +1,183 @@ +#include <string> + +#include "GammaControl.h" +#include "Render.h" +#include "OSInfo.h" + +#include "mm7_data.h" + + + +//----- (0044F324) -------------------------------------------------------- +void GammaController::GetRamp() +{ + if (pGammaControl) + ErrD3D(pGammaControl->GetGammaRamp(0, &pDefaultRamp)); + else + MessageBoxW(nullptr, L"Gamma control not active", L"E:\\WORK\\MSDEV\\MM7\\MM7\\Code\\GammaControl.cpp:83", 0); +} + +//----- (0044F377) -------------------------------------------------------- +double GammaController::_44F377(DDGAMMARAMP *a1) +{ + double v2; // st7@1 + unsigned __int16 *v3; // ecx@1 + double v4; // st6@2 + double result; // st7@7 + signed int v6; // [sp+0h] [bp-8h]@1 + signed int v7; // [sp+4h] [bp-4h]@1 + + v7 = 0; + v2 = 0.0; + v6 = 256; + v3 = a1->green; + do + { + v4 = ((double)*(v3 - 256) + (double)v3[256] + (double)*v3) * 0.000015259022 * 0.33333334; + if ( v4 == 0.0 ) + --v6; + else + v2 = v2 + (double)v7 * 0.0039215689 / v4; + ++v7; + ++v3; + } + while ( v7 < 256 ); + if ( v6 ) + result = v2 / (double)v6; + else + result = 1.0; + return result; +} + +//----- (0044F408) -------------------------------------------------------- +void GammaController::SetGammaRamp(DDGAMMARAMP *pRamp) +{ + if (pGammaControl) + ErrD3D(pGammaControl->SetGammaRamp(0, pRamp)); + else + MessageBoxW(nullptr, L"Gamma control not active", L"E:\\WORK\\MSDEV\\MM7\\MM7\\Code\\GammaControl.cpp:120", 0); +} + +//----- (0044F45B) -------------------------------------------------------- +int GammaController::InitGammaRamp(DDGAMMARAMP *pRamp) +{ + unsigned __int16 *v2; // esi@1 + double v3; // st7@2 + signed __int64 v4; // qax@3 + signed int v6; // [sp+Ch] [bp-4h]@1 + + v6 = 0; + v2 = pRamp->green; + do + { + v3 = (double)v6 * 0.0039215689 * this->fGamma; + if ( v3 >= 1.0 || (v4 = (signed __int64)(v3 * 65535.0), (signed int)v4 > 65535) ) + goto LABEL_12; + if ( (signed int)v4 < 0 ) + { + LODWORD(v4) = 0; + goto LABEL_8; + } + if ( (signed int)v4 > 65535 ) +LABEL_12: + LODWORD(v4) = 65535; +LABEL_8: + ++v6; + v2[256] = v4; + *v2 = v4; + *(v2 - 256) = v4; + ++v2; + } + while ( v6 < 256 ); + return v4; +} + +//----- (0044F4D9) -------------------------------------------------------- +void GammaController::Initialize(float gamma) +{ + GammaController *v2; // esi@1 + double v3; // st7@3 + double v4; // st6@4 + + v2 = this; + if (pVersion->pVersionInfo.dwPlatformId != VER_PLATFORM_WIN32_NT || + pVersion->pVersionInfo.dwMajorVersion != 4) + { + InitializeFromSurface(pRenderer->pFrontBuffer4); + v3 = 2.8; + if ( gamma <= 2.8f ) + v4 = gamma; + else + v4 = 2.8; + if ( v4 >= 0.1f ) + { + if ( gamma <= 2.8f ) + v3 = gamma; + } + else + { + v3 = 0.1; + } + v2->fGamma = v3; + InitGammaRamp(&v2->field_60C); + SetGammaRamp(&v2->field_60C); + } +} + + +//----- (0044F2B2) -------------------------------------------------------- +bool GammaController::IsGammaSupported() +{ + bool result; // eax@3 + HRESULT v1; // eax@4 + + if ( pVersion->pVersionInfo.dwPlatformId != VER_PLATFORM_WIN32_NT || pVersion->pVersionInfo.dwMajorVersion != 4 ) + { + DDCAPS halCaps; // [sp+0h] [bp-180h]@4 + memset(&halCaps, 0, sizeof(DDCAPS)); + halCaps.dwSize = sizeof(DDCAPS); + + ErrD3D(pRenderer->pDirectDraw4->GetCaps(&halCaps, 0)); + return (halCaps.dwCaps2 >> 17) & 1; + } + else + return false; +} + + + +//----- (0044F215) -------------------------------------------------------- +GammaController::GammaController() +{ + static float flt_4D8670_default_gamma = 1.0f; + + pGammaControl = nullptr; + fGamma = flt_4D8670_default_gamma; +} + + + +//----- (0044F24B) -------------------------------------------------------- +void GammaController::InitializeFromSurface(IDirectDrawSurface4 *a2) +{ + GammaController *v2; // esi@1 + IDirectDrawGammaControl **v3; // edi@1 + IDirectDrawGammaControl *v4; // eax@1 + + v2 = this; + v3 = &this->pGammaControl; + this->pSurface = a2; + v4 = this->pGammaControl; + if ( v4 ) + { + v4->Release(); + *v3 = 0; + } + if ( IsGammaSupported() ) + { + ErrD3D(a2->QueryInterface(IID_IDirectDrawGammaControl, (LPVOID *)v3)); + GetRamp(); + memcpy(&v2->field_60C, &v2->pDefaultRamp, 0x600u); + fGamma = _44F377(&v2->field_60C); + } +} \ No newline at end of file