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
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
|
/**
* @file llviewercamera.h
* @brief LLViewerCamera class header file
*
* $LicenseInfo:firstyear=2002&license=viewerlgpl$
* Second Life Viewer Source Code
* Copyright (C) 2010, Linden Research, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation;
* version 2.1 of the License only.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
* $/LicenseInfo$
*/
#ifndef LL_LLVIEWERCAMERA_H
#define LL_LLVIEWERCAMERA_H
#include "llcamera.h"
#include "llsingleton.h"
#include "lltimer.h"
#include "m4math.h"
#include "llcoord.h"
#include "lltrace.h"
class LLViewerObject;
// This rotation matrix moves the default OpenGL reference frame
// (-Z at, Y up) to Cory's favorite reference frame (X at, Z up)
const F32 OGL_TO_CFR_ROTATION[16] = { 0.f, 0.f, -1.f, 0.f, // -Z becomes X
-1.f, 0.f, 0.f, 0.f, // -X becomes Y
0.f, 1.f, 0.f, 0.f, // Y becomes Z
0.f, 0.f, 0.f, 1.f };
const BOOL FOR_SELECTION = TRUE;
const BOOL NOT_FOR_SELECTION = FALSE;
// Build time optimization, generate this once in .cpp file
#ifndef LLVIEWERCAMERA_CPP
extern template class LLViewerCamera* LLSingleton<class LLViewerCamera>::getInstance();
#endif
LL_ALIGN_PREFIX(16)
class LLViewerCamera : public LLCamera, public LLSingleton<LLViewerCamera>
{
public:
void* operator new(size_t size)
{
return ll_aligned_malloc_16(size);
}
void operator delete(void* ptr)
{
ll_aligned_free_16(ptr);
}
typedef enum
{
CAMERA_WORLD = 0,
CAMERA_SHADOW0,
CAMERA_SHADOW1,
CAMERA_SHADOW2,
CAMERA_SHADOW3,
CAMERA_SHADOW4,
CAMERA_SHADOW5,
CAMERA_WATER0,
CAMERA_WATER1,
CAMERA_GI_SOURCE,
NUM_CAMERAS
} eCameraID;
static eCameraID sCurCameraID;
LLViewerCamera();
void updateCameraLocation(const LLVector3 ¢er,
const LLVector3 &up_direction,
const LLVector3 &point_of_interest);
static void updateFrustumPlanes(LLCamera& camera, BOOL ortho = FALSE, BOOL zflip = FALSE, BOOL no_hacks = FALSE);
static void updateCameraAngle(void* user_data, const LLSD& value);
void setPerspective(BOOL for_selection, S32 x, S32 y_from_bot, S32 width, S32 height, BOOL limit_select_distance, F32 z_near = 0, F32 z_far = 0);
const LLMatrix4 &getProjection() const;
const LLMatrix4 &getModelview() const;
// Warning! These assume the current global matrices are correct
void projectScreenToPosAgent(const S32 screen_x, const S32 screen_y, LLVector3* pos_agent ) const;
BOOL projectPosAgentToScreen(const LLVector3 &pos_agent, LLCoordGL &out_point, const BOOL clamp = TRUE) const;
BOOL projectPosAgentToScreenEdge(const LLVector3 &pos_agent, LLCoordGL &out_point) const;
LLVector3 getVelocityDir() const {return mVelocityDir;}
static LLTrace::CountStatHandle<>* getVelocityStat() {return &sVelocityStat; }
static LLTrace::CountStatHandle<>* getAngularVelocityStat() {return &sAngularVelocityStat; }
F32 getCosHalfFov() {return mCosHalfCameraFOV;}
F32 getAverageSpeed() {return mAverageSpeed ;}
F32 getAverageAngularSpeed() {return mAverageAngularSpeed;}
void getPixelVectors(const LLVector3 &pos_agent, LLVector3 &up, LLVector3 &right);
LLVector3 roundToPixel(const LLVector3 &pos_agent);
// Sets the current matrix
/* virtual */ void setView(F32 vertical_fov_rads);
void setDefaultFOV(F32 fov) ;
F32 getDefaultFOV() { return mCameraFOVDefault; }
BOOL cameraUnderWater() const;
BOOL areVertsVisible(LLViewerObject* volumep, BOOL all_verts);
const LLVector3 &getPointOfInterest() { return mLastPointOfInterest; }
F32 getPixelMeterRatio() const { return mPixelMeterRatio; }
S32 getScreenPixelArea() const { return mScreenPixelArea; }
void setZoomParameters(F32 factor, S16 subregion) { mZoomFactor = factor; mZoomSubregion = subregion; }
F32 getZoomFactor() { return mZoomFactor; }
S16 getZoomSubRegion() { return mZoomSubregion; }
protected:
void calcProjection(const F32 far_distance) const;
static LLTrace::CountStatHandle<> sVelocityStat;
static LLTrace::CountStatHandle<> sAngularVelocityStat;
LLVector3 mVelocityDir ;
F32 mAverageSpeed ;
F32 mAverageAngularSpeed ;
mutable LLMatrix4 mProjectionMatrix; // Cache of perspective matrix
mutable LLMatrix4 mModelviewMatrix;
F32 mCameraFOVDefault;
F32 mCosHalfCameraFOV;
LLVector3 mLastPointOfInterest;
F32 mPixelMeterRatio; // Divide by distance from camera to get pixels per meter at that distance.
S32 mScreenPixelArea; // Pixel area of entire window
F32 mZoomFactor;
S16 mZoomSubregion;
public:
} LL_ALIGN_POSTFIX(16);
#endif // LL_LLVIEWERCAMERA_H
|
