summaryrefslogtreecommitdiffstats
path: root/src/render/Draw.cpp
blob: f2fdad27c8aa53d2b7b46b377ad7986c0b517635 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
#include "common.h"

#include "Draw.h"
#include "Frontend.h"
#include "Camera.h"
#include "CutsceneMgr.h"

#ifdef ASPECT_RATIO_SCALE
float CDraw::ms_fAspectRatio = DEFAULT_ASPECT_RATIO;
float CDraw::ms_fScaledFOV = 45.0f;
#endif

float CDraw::ms_fNearClipZ;
float CDraw::ms_fFarClipZ;
float CDraw::ms_fFOV = 45.0f;
float CDraw::ms_fLODDistance;

uint8 CDraw::FadeValue;
uint8 CDraw::FadeRed;
uint8 CDraw::FadeGreen;
uint8 CDraw::FadeBlue;

#ifdef PROPER_SCALING	
int32 CDraw::ms_bProperScaling = true;
#endif
#ifdef FIX_SPRITES
int32 CDraw::ms_bFixRadar = true;	
#endif
#ifdef FIX_RADAR
int32 CDraw::ms_bFixSprites = true;	
#endif

float
CDraw::FindAspectRatio(void)
{
#ifndef ASPECT_RATIO_SCALE
	if(FrontEndMenuManager.m_PrefsUseWideScreen)	
		return 16.0f/9.0f;
	else
		return 4.0f/3.0f;
#else
	switch (FrontEndMenuManager.m_PrefsUseWideScreen) {
	case AR_AUTO:
		return SCREEN_WIDTH / SCREEN_HEIGHT;
	default:
	case AR_4_3:
		return 4.0f / 3.0f;
	case AR_5_4:
		return 5.0f / 4.0f;
	case AR_16_10:
		return 16.0f / 10.0f;
	case AR_16_9:
		return 16.0f / 9.0f;
	case AR_21_9:
		return 21.0f / 9.0f;
	};
#endif
}

#ifdef ASPECT_RATIO_SCALE
// convert a 4:3 hFOV to vFOV,
// then convert that vFOV to hFOV for our aspect ratio,
// i.e. HOR+
float
CDraw::ConvertFOV(float hfov)
{
	// => tan(hFOV/2) = tan(vFOV/2)*aspectRatio
	// => tan(vFOV/2) = tan(hFOV/2)/aspectRatio
	float ar1 = DEFAULT_ASPECT_RATIO;
	float ar2 = GetAspectRatio();
	hfov = DEGTORAD(hfov);
	float vfov = Atan(tan(hfov/2) / ar1) *2;
	hfov = Atan(tan(vfov/2) * ar2) *2;
	return RADTODEG(hfov);
}
#endif

void
CDraw::SetFOV(float fov)
{
#ifdef ASPECT_RATIO_SCALE
	if (!CCutsceneMgr::IsRunning())
		ms_fScaledFOV = ConvertFOV(fov);
	else
		ms_fScaledFOV = fov;
#endif
	ms_fFOV = fov;
}

#ifdef PROPER_SCALING	
float CDraw::ScaleY(float y)
{
	return ms_bProperScaling ? y : y * ((float)DEFAULT_SCREEN_HEIGHT/SCREEN_HEIGHT_NTSC);
}
#endif