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/**
* @file llvosurfacepatch.h
* @brief Description of LLVOSurfacePatch class
*
* Copyright (c) 2001-2007, Linden Research, Inc.
*
* 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://secondlife.com/developers/opensource/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://secondlife.com/developers/opensource/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.
*/
#ifndef LL_VOSURFACEPATCH_H
#define LL_VOSURFACEPATCH_H
#include "llviewerobject.h"
#include "llstrider.h"
class LLSurfacePatch;
class LLDrawPool;
class LLVector2;
class LLVOSurfacePatch : public LLViewerObject
{
public:
LLVOSurfacePatch(const LLUUID &id, const LLPCode pcode, LLViewerRegion *regionp);
virtual ~LLVOSurfacePatch();
/*virtual*/ void markDead();
// Initialize data that's only inited once per class.
static void initClass();
/*virtual*/ LLDrawable* createDrawable(LLPipeline *pipeline);
/*virtual*/ BOOL updateGeometry(LLDrawable *drawable);
/*virtual*/ void updateTextures(LLAgent &agent);
/*virtual*/ void setPixelAreaAndAngle(LLAgent &agent); // generate accurate apparent angle and area
/*virtual*/ void updateSpatialExtents(LLVector3& newMin, LLVector3& newMax);
/*virtual*/ BOOL isActive() const; // Whether this object needs to do an idleUpdate.
void setPatch(LLSurfacePatch *patchp);
LLSurfacePatch *getPatch() const { return mPatchp; }
void dirtyPatch();
void dirtyGeom();
BOOL mDirtiedPatch;
protected:
LLDrawPool *mPool;
LLDrawPool *getPool();
S32 mBaseComp;
LLSurfacePatch *mPatchp;
BOOL mDirtyTexture;
BOOL mDirtyTerrain;
S32 mLastNorthStride;
S32 mLastEastStride;
S32 mLastStride;
S32 mLastLength;
void calcColor(const LLVector3* vertex, const LLVector3* normal, LLColor4U* colorp);
BOOL updateShadows(BOOL use_shadow_factor = FALSE);
void getGeomSizesMain(const S32 stride, S32 &num_vertices, S32 &num_indices);
void getGeomSizesNorth(const S32 stride, const S32 north_stride,
S32 &num_vertices, S32 &num_indices);
void getGeomSizesEast(const S32 stride, const S32 east_stride,
S32 &num_vertices, S32 &num_indices);
void updateMainGeometry(LLFace *facep,
LLStrider<LLVector3> &verticesp,
LLStrider<LLVector3> &normalsp,
LLStrider<LLColor4U> &colorsp,
LLStrider<LLVector2> &texCoords0p,
LLStrider<LLVector2> &texCoords1p,
U32* &indicesp,
S32 &index_offset);
void updateNorthGeometry(LLFace *facep,
LLStrider<LLVector3> &verticesp,
LLStrider<LLVector3> &normalsp,
LLStrider<LLColor4U> &colorsp,
LLStrider<LLVector2> &texCoords0p,
LLStrider<LLVector2> &texCoords1p,
U32* &indicesp,
S32 &index_offset);
void updateEastGeometry(LLFace *facep,
LLStrider<LLVector3> &verticesp,
LLStrider<LLVector3> &normalsp,
LLStrider<LLColor4U> &colorsp,
LLStrider<LLVector2> &texCoords0p,
LLStrider<LLVector2> &texCoords1p,
U32* &indicesp,
S32 &index_offset);
};
#endif // LL_VOSURFACEPATCH_H
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