144 lines
5.0 KiB
C++
144 lines
5.0 KiB
C++
/**
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* @file llvosurfacepatch.h
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* @brief Description of LLVOSurfacePatch class
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*
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* $LicenseInfo:firstyear=2001&license=viewergpl$
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*
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* Copyright (c) 2001-2009, Linden Research, Inc.
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*
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* Second Life Viewer Source Code
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* The source code in this file ("Source Code") is provided by Linden Lab
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* to you under the terms of the GNU General Public License, version 2.0
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* ("GPL"), unless you have obtained a separate licensing agreement
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* ("Other License"), formally executed by you and Linden Lab. Terms of
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* the GPL can be found in doc/GPL-license.txt in this distribution, or
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* online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
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*
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* There are special exceptions to the terms and conditions of the GPL as
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* it is applied to this Source Code. View the full text of the exception
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* in the file doc/FLOSS-exception.txt in this software distribution, or
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* online at
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* http://secondlifegrid.net/programs/open_source/licensing/flossexception
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*
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* By copying, modifying or distributing this software, you acknowledge
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* that you have read and understood your obligations described above,
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* and agree to abide by those obligations.
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*
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* ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
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* WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
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* COMPLETENESS OR PERFORMANCE.
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* $/LicenseInfo$
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*/
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#ifndef LL_VOSURFACEPATCH_H
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#define LL_VOSURFACEPATCH_H
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#include "llviewerobject.h"
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#include "llstrider.h"
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class LLSurfacePatch;
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class LLDrawPool;
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class LLVector2;
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class LLVOSurfacePatch : public LLStaticViewerObject
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{
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public:
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static F32 sLODFactor;
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enum
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{
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VERTEX_DATA_MASK = (1 << LLVertexBuffer::TYPE_VERTEX) |
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(1 << LLVertexBuffer::TYPE_NORMAL) |
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(1 << LLVertexBuffer::TYPE_TEXCOORD0) |
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(1 << LLVertexBuffer::TYPE_TEXCOORD1)
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};
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LLVOSurfacePatch(const LLUUID &id, const LLPCode pcode, LLViewerRegion *regionp);
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/*virtual*/ void markDead();
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// Initialize data that's only inited once per class.
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static void initClass();
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virtual U32 getPartitionType() const;
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/*virtual*/ LLDrawable* createDrawable(LLPipeline *pipeline);
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/*virtual*/ void updateGL();
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/*virtual*/ BOOL updateGeometry(LLDrawable *drawable);
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/*virtual*/ BOOL updateLOD();
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/*virtual*/ void updateFaceSize(S32 idx);
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void getGeometry(LLStrider<LLVector3> &verticesp,
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LLStrider<LLVector3> &normalsp,
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LLStrider<LLVector2> &texCoords0p,
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LLStrider<LLVector2> &texCoords1p,
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LLStrider<U16> &indicesp);
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/*virtual*/ void updateTextures();
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/*virtual*/ void setPixelAreaAndAngle(LLAgent &agent); // generate accurate apparent angle and area
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/*virtual*/ void updateSpatialExtents(LLVector4a& newMin, LLVector4a& newMax);
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/*virtual*/ BOOL isActive() const; // Whether this object needs to do an idleUpdate.
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void setPatch(LLSurfacePatch *patchp);
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LLSurfacePatch *getPatch() const { return mPatchp; }
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void dirtyPatch();
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void dirtyGeom();
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/*virtual*/ BOOL lineSegmentIntersect(const LLVector4a& start, const LLVector4a& end,
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S32 face = -1, // which face to check, -1 = ALL_SIDES
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BOOL pick_transparent = FALSE,
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S32* face_hit = NULL, // which face was hit
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LLVector4a* intersection = NULL, // return the intersection point
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LLVector2* tex_coord = NULL, // return the texture coordinates of the intersection point
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LLVector4a* normal = NULL, // return the surface normal at the intersection point
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LLVector4a* tangent = NULL // return the surface tangent at the intersection point
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);
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BOOL mDirtiedPatch;
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protected:
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~LLVOSurfacePatch();
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LLFacePool *mPool;
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LLFacePool *getPool();
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S32 mBaseComp;
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LLSurfacePatch *mPatchp;
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BOOL mDirtyTexture;
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BOOL mDirtyTerrain;
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S32 mLastNorthStride;
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S32 mLastEastStride;
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S32 mLastStride;
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S32 mLastLength;
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void getGeomSizesMain(const S32 stride, S32 &num_vertices, S32 &num_indices);
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void getGeomSizesNorth(const S32 stride, const S32 north_stride,
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S32 &num_vertices, S32 &num_indices);
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void getGeomSizesEast(const S32 stride, const S32 east_stride,
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S32 &num_vertices, S32 &num_indices);
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void updateMainGeometry(LLFace *facep,
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LLStrider<LLVector3> &verticesp,
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LLStrider<LLVector3> &normalsp,
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LLStrider<LLVector2> &texCoords0p,
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LLStrider<LLVector2> &texCoords1p,
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LLStrider<U16> &indicesp,
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U32 &index_offset);
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void updateNorthGeometry(LLFace *facep,
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LLStrider<LLVector3> &verticesp,
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LLStrider<LLVector3> &normalsp,
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LLStrider<LLVector2> &texCoords0p,
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LLStrider<LLVector2> &texCoords1p,
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LLStrider<U16> &indicesp,
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U32 &index_offset);
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void updateEastGeometry(LLFace *facep,
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LLStrider<LLVector3> &verticesp,
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LLStrider<LLVector3> &normalsp,
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LLStrider<LLVector2> &texCoords0p,
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LLStrider<LLVector2> &texCoords1p,
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LLStrider<U16> &indicesp,
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U32 &index_offset);
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};
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#endif // LL_VOSURFACEPATCH_H
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