142 lines
4.9 KiB
C++
142 lines
4.9 KiB
C++
/**
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* @file llviewercamera.h
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* @brief LLViewerCamera class header file
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*
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* $LicenseInfo:firstyear=2002&license=viewergpl$
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*
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* Copyright (c) 2002-2009, Linden Research, Inc.
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*
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* Second Life Viewer Source Code
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* The source code in this file ("Source Code") is provided by Linden Lab
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* to you under the terms of the GNU General Public License, version 2.0
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* ("GPL"), unless you have obtained a separate licensing agreement
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* ("Other License"), formally executed by you and Linden Lab. Terms of
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* the GPL can be found in doc/GPL-license.txt in this distribution, or
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* online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
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*
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* There are special exceptions to the terms and conditions of the GPL as
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* it is applied to this Source Code. View the full text of the exception
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* in the file doc/FLOSS-exception.txt in this software distribution, or
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* online at
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* http://secondlifegrid.net/programs/open_source/licensing/flossexception
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*
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* By copying, modifying or distributing this software, you acknowledge
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* that you have read and understood your obligations described above,
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* and agree to abide by those obligations.
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*
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* ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
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* WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
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* COMPLETENESS OR PERFORMANCE.
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* $/LicenseInfo$
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*/
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#ifndef LL_LLVIEWERCAMERA_H
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#define LL_LLVIEWERCAMERA_H
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#include "llcamera.h"
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#include "lltimer.h"
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#include "llstat.h"
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#include "m4math.h"
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class LLCoordGL;
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class LLViewerObject;
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// This rotation matrix moves the default OpenGL reference frame
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// (-Z at, Y up) to Cory's favorite reference frame (X at, Z up)
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const F32 OGL_TO_CFR_ROTATION[16] = { 0.f, 0.f, -1.f, 0.f, // -Z becomes X
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-1.f, 0.f, 0.f, 0.f, // -X becomes Y
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0.f, 1.f, 0.f, 0.f, // Y becomes Z
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0.f, 0.f, 0.f, 1.f };
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const BOOL FOR_SELECTION = TRUE;
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const BOOL NOT_FOR_SELECTION = FALSE;
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class LLViewerCamera : public LLCamera, public LLSingleton<LLViewerCamera>
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{
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public:
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typedef enum
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{
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CAMERA_WORLD = 0,
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CAMERA_SHADOW0,
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CAMERA_SHADOW1,
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CAMERA_SHADOW2,
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CAMERA_SHADOW3,
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CAMERA_SHADOW4,
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CAMERA_SHADOW5,
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CAMERA_WATER0,
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CAMERA_WATER1,
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CAMERA_GI_SOURCE,
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NUM_CAMERAS
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} eCameraID;
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static U32 sCurCameraID;
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LLViewerCamera();
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void updateCameraLocation(const LLVector3 ¢er,
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const LLVector3 &up_direction,
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const LLVector3 &point_of_interest);
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static void updateFrustumPlanes(LLCamera& camera, BOOL ortho = FALSE, BOOL zflip = FALSE, BOOL no_hacks = FALSE);
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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);
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const LLMatrix4 &getProjection() const;
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const LLMatrix4 &getModelview() const;
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// Warning! These assume the current global matrices are correct
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void projectScreenToPosAgent(const S32 screen_x, const S32 screen_y, LLVector3* pos_agent ) const;
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BOOL projectPosAgentToScreen(const LLVector3 &pos_agent, LLCoordGL &out_point, const BOOL clamp = TRUE) const;
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BOOL projectPosAgentToScreenEdge(const LLVector3 &pos_agent, LLCoordGL &out_point) const;
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const LLVector3* getVelocityDir() const {return &mVelocityDir;}
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LLStat *getVelocityStat() { return &mVelocityStat; }
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LLStat *getAngularVelocityStat() { return &mAngularVelocityStat; }
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F32 getCosHalfFov() {return mCosHalfCameraFOV;}
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F32 getAverageSpeed() {return mAverageSpeed ;}
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F32 getAverageAngularSpeed() {return mAverageAngularSpeed;}
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void getPixelVectors(const LLVector3 &pos_agent, LLVector3 &up, LLVector3 &right);
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LLVector3 roundToPixel(const LLVector3 &pos_agent);
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// Sets the current matrix
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/* virtual */ void setView(F32 vertical_fov_rads);
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void setDefaultFOV(F32 fov) ;
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F32 getDefaultFOV() { return mCameraFOVDefault; }
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BOOL cameraUnderWater() const;
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const LLVector3 &getPointOfInterest() { return mLastPointOfInterest; }
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BOOL areVertsVisible(LLViewerObject* volumep, BOOL all_verts);
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F32 getPixelMeterRatio() const { return mPixelMeterRatio; }
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S32 getScreenPixelArea() const { return mScreenPixelArea; }
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void setZoomParameters(F32 factor, S16 subregion) { mZoomFactor = factor; mZoomSubregion = subregion; }
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F32 getZoomFactor() { return mZoomFactor; }
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S16 getZoomSubRegion() { return mZoomSubregion; }
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protected:
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void calcProjection(const F32 far_distance) const;
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LLStat mVelocityStat;
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LLStat mAngularVelocityStat;
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LLVector3 mVelocityDir ;
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F32 mAverageSpeed ;
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F32 mAverageAngularSpeed ;
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mutable LLMatrix4 mProjectionMatrix; // Cache of perspective matrix
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mutable LLMatrix4 mModelviewMatrix;
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F32 mCameraFOVDefault;
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F32 mCosHalfCameraFOV;
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LLVector3 mLastPointOfInterest;
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F32 mPixelMeterRatio; // Divide by distance from camera to get pixels per meter at that distance.
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S32 mScreenPixelArea; // Pixel area of entire window
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F32 mZoomFactor;
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S16 mZoomSubregion;
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public:
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};
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#endif // LL_LLVIEWERCAMERA_H
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