/** * @file llvosurfacepatch.h * @brief Description of LLVOSurfacePatch class * * $LicenseInfo:firstyear=2001&license=viewergpl$ * * Copyright (c) 2001-2009, 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_VOSURFACEPATCH_H #define LL_VOSURFACEPATCH_H #include "llviewerobject.h" #include "llstrider.h" class LLSurfacePatch; class LLDrawPool; class LLVector2; class LLVOSurfacePatch : public LLStaticViewerObject { public: static F32 sLODFactor; enum { VERTEX_DATA_MASK = (1 << LLVertexBuffer::TYPE_VERTEX) | (1 << LLVertexBuffer::TYPE_NORMAL) | (1 << LLVertexBuffer::TYPE_TEXCOORD0) | (1 << LLVertexBuffer::TYPE_TEXCOORD1) | (1 << LLVertexBuffer::TYPE_COLOR) }; 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 getGeometry(LLStrider<LLVector3> &verticesp, LLStrider<LLVector3> &normalsp, LLStrider<LLColor4U> &colorsp, LLStrider<LLVector2> &texCoords0p, LLStrider<LLVector2> &texCoords1p, LLStrider<U16> &indicesp); /*virtual*/ void updateTextures(); /*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(); /*virtual*/ BOOL lineSegmentIntersect(const LLVector3& start, const LLVector3& end, S32 face = -1, // which face to check, -1 = ALL_SIDES BOOL pick_transparent = FALSE, S32* face_hit = NULL, // which face was hit LLVector3* intersection = NULL, // return the intersection point LLVector2* tex_coord = NULL, // return the texture coordinates of the intersection point LLVector3* normal = NULL, // return the surface normal at the intersection point LLVector3* bi_normal = NULL // return the surface bi-normal 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<LLColor4U> &colorsp, LLStrider<LLVector2> &texCoords0p, LLStrider<LLVector2> &texCoords1p, LLStrider<U16> &indicesp, U32 &index_offset); void updateNorthGeometry(LLFace *facep, LLStrider<LLVector3> &verticesp, LLStrider<LLVector3> &normalsp, LLStrider<LLColor4U> &colorsp, LLStrider<LLVector2> &texCoords0p, LLStrider<LLVector2> &texCoords1p, LLStrider<U16> &indicesp, U32 &index_offset); void updateEastGeometry(LLFace *facep, LLStrider<LLVector3> &verticesp, LLStrider<LLVector3> &normalsp, LLStrider<LLColor4U> &colorsp, LLStrider<LLVector2> &texCoords0p, LLStrider<LLVector2> &texCoords1p, LLStrider<U16> &indicesp, U32 &index_offset); }; #endif // LL_VOSURFACEPATCH_H