1 files changed, 95 insertions, 0 deletions
diff --git a/indra/newview/llviewercamera.h b/indra/newview/llviewercamera.h
new file mode 100644
index 0000000000..6797103997
--- /dev/null
+++ b/indra/newview/llviewercamera.h
@@ -0,0 +1,95 @@
+/** 
+ * @file llviewercamera.h
+ * @brief LLViewerCamera class header file
+ *
+ * Copyright (c) 2002-$CurrentYear$, Linden Research, Inc.
+ * $License$
+ */
+
+#ifndef LL_LLVIEWERCAMERA_H
+#define LL_LLVIEWERCAMERA_H
+
+#include "llcamera.h"
+#include "lltimer.h"
+#include "llstat.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 };
+
+class LLViewerCamera : public LLCamera
+{
+public:
+	LLViewerCamera();
+
+//	const LLVector3 &getPositionAgent() const;
+//	const LLVector3d &getPositionGlobal() const;
+
+	void updateCameraLocation(const LLVector3 &center,
+								const LLVector3 &up_direction,
+								const LLVector3 &point_of_interest);
+
+	void updateFrustumPlanes();
+	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;
+
+
+	LLStat *getVelocityStat() { return &mVelocityStat; }
+	LLStat *getAngularVelocityStat() { return &mAngularVelocityStat; }
+
+	void getPixelVectors(const LLVector3 &pos_agent, LLVector3 &up, LLVector3 &right);
+	LLVector3 roundToPixel(const LLVector3 &pos_agent);
+
+	void setDefaultFOV(F32 fov) { mCameraFOVDefault = 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;
+	mutable LLMatrix4	mProjectionMatrix;	// Cache of perspective matrix
+	mutable LLMatrix4	mModelviewMatrix;
+	F32					mCameraFOVDefault;
+	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:
+	static BOOL sDisableCameraConstraints;
+	F64		mGLProjectionMatrix[16];
+	
+};
+
+extern LLViewerCamera *gCamera;
+extern F64 gGLModelView[16];
+extern S32 gGLViewport[4];
+
+#endif // LL_LLVIEWERCAMERA_H