Imported existing code

indra/newview/llviewerparceloverlay.h

@@ -0,0 +1,120 @@
+/** 
+ * @file llviewerparceloverlay.h
+ * @brief LLViewerParcelOverlay class header file
+ *
+ * $LicenseInfo:firstyear=2002&license=viewergpl$
+ * 
+ * Copyright (c) 2002-2009, 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_LLVIEWERPARCELOVERLAY_H
+#define LL_LLVIEWERPARCELOVERLAY_H
+
+// The ownership data for land parcels.
+// One of these structures per region.
+
+#include "lldarray.h"
+#include "llframetimer.h"
+#include "lluuid.h"
+#include "llviewerimage.h"
+
+class LLViewerRegion;
+class LLVector3;
+class LLColor4U;
+class LLVector2;
+
+class LLViewerParcelOverlay
+{
+public:
+	LLViewerParcelOverlay(LLViewerRegion* region, F32 region_width_meters);
+	~LLViewerParcelOverlay();
+
+	// ACCESS
+	LLImageGL*		getTexture() const		{ return mTexture; }
+
+	BOOL			isOwned(const LLVector3& pos) const;
+	BOOL			isOwnedSelf(const LLVector3& pos) const;
+	BOOL			isOwnedGroup(const LLVector3& pos) const;
+	BOOL			isOwnedOther(const LLVector3& pos) const;
+	BOOL			isSoundLocal(const LLVector3& pos) const;
+
+	BOOL			isBuildCameraAllowed(const LLVector3& pos) const;
+	F32				getOwnedRatio() const;
+
+	// Returns the number of vertices drawn
+	S32				renderPropertyLines();
+
+	U8				ownership( const LLVector3& pos) const;
+
+	// MANIPULATE
+	void	uncompressLandOverlay(S32 chunk, U8 *compressed_overlay);
+
+	// Indicate property lines and overlay texture need to be rebuilt.
+	void	setDirty();
+
+	void	idleUpdate(bool update_now = false);
+
+private:
+	// This is in parcel rows and columns, not grid rows and columns
+	// Stored in bottom three bits.
+	U8		ownership(S32 row, S32 col) const	
+				{ return 0x7 & mOwnership[row * mParcelGridsPerEdge + col]; }
+
+	void	addPropertyLine(LLDynamicArray<LLVector3, 256>& vertex_array,
+				LLDynamicArray<LLColor4U, 256>& color_array,
+				LLDynamicArray<LLVector2, 256>& coord_array,
+				const F32 start_x, const F32 start_y, 
+				const U32 edge, 
+				const LLColor4U& color);
+
+	void 	updateOverlayTexture();
+	void	updatePropertyLines();
+	
+private:
+	// Back pointer to the region that owns this structure.
+	LLViewerRegion*	mRegion;
+
+	S32				mParcelGridsPerEdge;
+
+	LLPointer<LLImageGL> mTexture;
+	LLPointer<LLImageRaw> mImageRaw;
+	
+	// Size: mParcelGridsPerEdge * mParcelGridsPerEdge
+	// Each value is 0-3, PARCEL_AVAIL to PARCEL_SELF in the two low bits
+	// and other flags in the upper bits.
+	U8				*mOwnership;
+
+	// Update propery lines and overlay texture
+	BOOL			mDirty;
+	LLFrameTimer	mTimeSinceLastUpdate;
+	S32				mOverlayTextureIdx;
+	
+	S32				mVertexCount;
+	F32*			mVertexArray;
+	U8*				mColorArray;
+};
+
+#endif