/** * @file llvosurfacepatch.h * @brief Description of LLVOSurfacePatch class * * $LicenseInfo:firstyear=2001&license=viewerlgpl$ * 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_VOSURFACEPATCH_H #define LL_VOSURFACEPATCH_H #include "llviewerobject.h" #include "llstrider.h" class LLSurfacePatch; class LLDrawPool; class LLVector2; class LLFacePool; class LLFace; class LLVOSurfacePatch : public LLStaticViewerObject { public: static F32 sLODFactor; LLVOSurfacePatch(const LLUUID &id, const LLPCode pcode, LLViewerRegion *regionp); /*virtual*/ void markDead(); // Initialize data that's only inited once per class. static void initClass(); virtual U32 getPartitionType() const; /*virtual*/ LLDrawable* createDrawable(LLPipeline *pipeline); /*virtual*/ void updateGL(); /*virtual*/ bool updateGeometry(LLDrawable *drawable); /*virtual*/ bool updateLOD(); /*virtual*/ void updateFaceSize(S32 idx); void getTerrainGeometry(LLStrider<LLVector3> &verticesp, LLStrider<LLVector3> &normalsp, LLStrider<LLVector2> &texCoords1p, LLStrider<U16> &indicesp); /*virtual*/ void updateTextures(); /*virtual*/ void setPixelAreaAndAngle(LLAgent &agent); // generate accurate apparent angle and area /*virtual*/ void updateSpatialExtents(LLVector4a& newMin, LLVector4a& 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(); /*virtual*/ bool lineSegmentIntersect(const LLVector4a& start, const LLVector4a& end, S32 face = -1, // which face to check, -1 = ALL_SIDES bool pick_transparent = false, bool pick_rigged = false, bool pick_unselectable = true, S32* face_hit = NULL, // which face was hit LLVector4a* intersection = NULL, // return the intersection point LLVector2* tex_coord = NULL, // return the texture coordinates of the intersection point LLVector4a* normal = NULL, // return the surface normal at the intersection point LLVector4a* tangent = NULL // return the surface tangent at the intersection point ); bool mDirtiedPatch; protected: ~LLVOSurfacePatch(); LLFacePool *mPool; LLFacePool *getPool(); S32 mBaseComp; LLSurfacePatch *mPatchp; bool mDirtyTexture; bool mDirtyTerrain; S32 mLastNorthStride; S32 mLastEastStride; S32 mLastStride; S32 mLastLength; 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<LLVector2> &texCoords1p, LLStrider<U16> &indicesp, U32 &index_offset); void updateNorthGeometry(LLFace *facep, LLStrider<LLVector3> &verticesp, LLStrider<LLVector3> &normalsp, LLStrider<LLVector2> &texCoords1p, LLStrider<U16> &indicesp, U32 &index_offset); void updateEastGeometry(LLFace *facep, LLStrider<LLVector3> &verticesp, LLStrider<LLVector3> &normalsp, LLStrider<LLVector2> &texCoords1p, LLStrider<U16> &indicesp, U32 &index_offset); }; #endif // LL_VOSURFACEPATCH_H