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/**
* @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
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