llviewercamera.h
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- /**
- * @file llviewercamera.h
- * @brief LLViewerCamera class header file
- *
- * $LicenseInfo:firstyear=2002&license=viewergpl$
- *
- * Copyright (c) 2002-2010, Linden Research, Inc.
- *
- * Second Life Viewer Source Code
- * The source code in this file ("Source Code") is provided by Linden Lab
- * to you under the terms of the GNU General Public License, version 2.0
- * ("GPL"), unless you have obtained a separate licensing agreement
- * ("Other License"), formally executed by you and Linden Lab. Terms of
- * the GPL can be found in doc/GPL-license.txt in this distribution, or
- * online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
- *
- * There are special exceptions to the terms and conditions of the GPL as
- * it is applied to this Source Code. View the full text of the exception
- * in the file doc/FLOSS-exception.txt in this software distribution, or
- * online at
- * http://secondlifegrid.net/programs/open_source/licensing/flossexception
- *
- * By copying, modifying or distributing this software, you acknowledge
- * that you have read and understood your obligations described above,
- * and agree to abide by those obligations.
- *
- * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
- * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
- * COMPLETENESS OR PERFORMANCE.
- * $/LicenseInfo$
- */
- #ifndef LL_LLVIEWERCAMERA_H
- #define LL_LLVIEWERCAMERA_H
- #include "llcamera.h"
- #include "llsingleton.h"
- #include "llstat.h"
- #include "lltimer.h"
- #include "m4math.h"
- class LLCoordGL;
- 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
- class LLViewerCamera : public LLCamera, public LLSingleton<LLViewerCamera>
- {
- public:
- 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 U32 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;
- const LLVector3* getVelocityDir() const {return &mVelocityDir;}
- LLStat *getVelocityStat() { return &mVelocityStat; }
- LLStat *getAngularVelocityStat() { return &mAngularVelocityStat; }
- 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;
- const LLVector3 &getPointOfInterest() { return mLastPointOfInterest; }
- BOOL areVertsVisible(LLViewerObject* volumep, BOOL all_verts);
- 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;
- LLStat mVelocityStat;
- LLStat mAngularVelocityStat;
- 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:
- };
- #endif // LL_LLVIEWERCAMERA_H