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/**
* @file llviewerparceloverlay.h
* @brief LLViewerParcelOverlay class header file
*
* $LicenseInfo:firstyear=2002&license=viewerlgpl$
* Second Life Viewer Source Code
* Copyright (C) 2010, Linden Research, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation;
* version 2.1 of the License only.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
* $/LicenseInfo$
*/
#ifndef LL_LLVIEWERPARCELOVERLAY_H
#define LL_LLVIEWERPARCELOVERLAY_H
// The ownership data for land parcels.
// One of these structures per region.
#include "llbbox.h"
#include "llframetimer.h"
#include "lluuid.h"
#include "llviewertexture.h"
#include "llgl.h"
class LLViewerRegion;
class LLVector3;
class LLColor4U;
class LLVector2;
class LLViewerParcelOverlay : public LLGLUpdate
{
public:
LLViewerParcelOverlay(LLViewerRegion* region, F32 region_width_meters);
~LLViewerParcelOverlay();
// ACCESS
LLViewerTexture* 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;
// "encroaches" means the prim hangs over the parcel, but its center
// might be in another parcel. for now, we simply test axis aligned
// bounding boxes which isn't perfect, but is close
bool encroachesOwned(const std::vector<LLBBox>& boxes) const;
bool encroachesOnUnowned(const std::vector<LLBBox>& boxes) const;
bool encroachesOnNearbyParcel(const std::vector<LLBBox>& boxes) 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;
U8 parcelLineFlags( const LLVector3& pos) const;
U8 parcelLineFlags(S32 row, S32 col) 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);
void updateGL();
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(std::vector<LLVector3>& vertex_array,
std::vector<LLColor4U>& color_array,
std::vector<LLVector2>& 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<LLViewerTexture> 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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