Mercurial > mm7

comparison GammaControl.cpp @ 0:9c0607679772

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init
author Ritor1
date Sat, 12 Jan 2013 09:45:18 +0600
parents
children 4fff79f04dbd
comparison
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-1:000000000000 0:9c0607679772
1 #include <string>
2
3 #include "GammaControl.h"
4 #include "Render.h"
5 #include "OSInfo.h"
6
7 #include "mm7_data.h"
8
9
10
11 //----- (0044F324) --------------------------------------------------------
12 void GammaController::GetRamp()
13 {
14 if (pGammaControl)
15 ErrD3D(pGammaControl->GetGammaRamp(0, &pDefaultRamp));
16 else
17 MessageBoxW(nullptr, L"Gamma control not active", L"E:\\WORK\\MSDEV\\MM7\\MM7\\Code\\GammaControl.cpp:83", 0);
18 }
19
20 //----- (0044F377) --------------------------------------------------------
21 double GammaController::_44F377(DDGAMMARAMP *a1)
22 {
23 double v2; // st7@1
24 unsigned __int16 *v3; // ecx@1
25 double v4; // st6@2
26 double result; // st7@7
27 signed int v6; // [sp+0h] [bp-8h]@1
28 signed int v7; // [sp+4h] [bp-4h]@1
29
30 v7 = 0;
31 v2 = 0.0;
32 v6 = 256;
33 v3 = a1->green;
34 do
35 {
36 v4 = ((double)*(v3 - 256) + (double)v3[256] + (double)*v3) * 0.000015259022 * 0.33333334;
37 if ( v4 == 0.0 )
38 --v6;
39 else
40 v2 = v2 + (double)v7 * 0.0039215689 / v4;
41 ++v7;
42 ++v3;
43 }
44 while ( v7 < 256 );
45 if ( v6 )
46 result = v2 / (double)v6;
47 else
48 result = 1.0;
49 return result;
50 }
51
52 //----- (0044F408) --------------------------------------------------------
53 void GammaController::SetGammaRamp(DDGAMMARAMP *pRamp)
54 {
55 if (pGammaControl)
56 ErrD3D(pGammaControl->SetGammaRamp(0, pRamp));
57 else
58 MessageBoxW(nullptr, L"Gamma control not active", L"E:\\WORK\\MSDEV\\MM7\\MM7\\Code\\GammaControl.cpp:120", 0);
59 }
60
61 //----- (0044F45B) --------------------------------------------------------
62 int GammaController::InitGammaRamp(DDGAMMARAMP *pRamp)
63 {
64 unsigned __int16 *v2; // esi@1
65 double v3; // st7@2
66 signed __int64 v4; // qax@3
67 signed int v6; // [sp+Ch] [bp-4h]@1
68
69 v6 = 0;
70 v2 = pRamp->green;
71 do
72 {
73 v3 = (double)v6 * 0.0039215689 * this->fGamma;
74 if ( v3 >= 1.0 || (v4 = (signed __int64)(v3 * 65535.0), (signed int)v4 > 65535) )
75 goto LABEL_12;
76 if ( (signed int)v4 < 0 )
77 {
78 LODWORD(v4) = 0;
79 goto LABEL_8;
80 }
81 if ( (signed int)v4 > 65535 )
82 LABEL_12:
83 LODWORD(v4) = 65535;
84 LABEL_8:
85 ++v6;
86 v2[256] = v4;
87 *v2 = v4;
88 *(v2 - 256) = v4;
89 ++v2;
90 }
91 while ( v6 < 256 );
92 return v4;
93 }
94
95 //----- (0044F4D9) --------------------------------------------------------
96 void GammaController::Initialize(float gamma)
97 {
98 GammaController *v2; // esi@1
99 double v3; // st7@3
100 double v4; // st6@4
101
102 v2 = this;
103 if (pVersion->pVersionInfo.dwPlatformId != VER_PLATFORM_WIN32_NT ||
104 pVersion->pVersionInfo.dwMajorVersion != 4)
105 {
106 InitializeFromSurface(pRenderer->pFrontBuffer4);
107 v3 = 2.8;
108 if ( gamma <= 2.8f )
109 v4 = gamma;
110 else
111 v4 = 2.8;
112 if ( v4 >= 0.1f )
113 {
114 if ( gamma <= 2.8f )
115 v3 = gamma;
116 }
117 else
118 {
119 v3 = 0.1;
120 }
121 v2->fGamma = v3;
122 InitGammaRamp(&v2->field_60C);
123 SetGammaRamp(&v2->field_60C);
124 }
125 }
126
127
128 //----- (0044F2B2) --------------------------------------------------------
129 bool GammaController::IsGammaSupported()
130 {
131 bool result; // eax@3
132 HRESULT v1; // eax@4
133
134 if ( pVersion->pVersionInfo.dwPlatformId != VER_PLATFORM_WIN32_NT || pVersion->pVersionInfo.dwMajorVersion != 4 )
135 {
136 DDCAPS halCaps; // [sp+0h] [bp-180h]@4
137 memset(&halCaps, 0, sizeof(DDCAPS));
138 halCaps.dwSize = sizeof(DDCAPS);
139
140 ErrD3D(pRenderer->pDirectDraw4->GetCaps(&halCaps, 0));
141 return (halCaps.dwCaps2 >> 17) & 1;
142 }
143 else
144 return false;
145 }
146
147
148
149 //----- (0044F215) --------------------------------------------------------
150 GammaController::GammaController()
151 {
152 static float flt_4D8670_default_gamma = 1.0f;
153
154 pGammaControl = nullptr;
155 fGamma = flt_4D8670_default_gamma;
156 }
157
158
159
160 //----- (0044F24B) --------------------------------------------------------
161 void GammaController::InitializeFromSurface(IDirectDrawSurface4 *a2)
162 {
163 GammaController *v2; // esi@1
164 IDirectDrawGammaControl **v3; // edi@1
165 IDirectDrawGammaControl *v4; // eax@1
166
167 v2 = this;
168 v3 = &this->pGammaControl;
169 this->pSurface = a2;
170 v4 = this->pGammaControl;
171 if ( v4 )
172 {
173 v4->Release();
174 *v3 = 0;
175 }
176 if ( IsGammaSupported() )
177 {
178 ErrD3D(a2->QueryInterface(IID_IDirectDrawGammaControl, (LPVOID *)v3));
179 GetRamp();
180 memcpy(&v2->field_60C, &v2->pDefaultRamp, 0x600u);
181 fGamma = _44F377(&v2->field_60C);
182 }
183 }