llvosurfacepatch.h
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- /**
- * @file llvosurfacepatch.h
- * @brief Description of LLVOSurfacePatch class
- *
- * $LicenseInfo:firstyear=2001&license=viewergpl$
- *
- * Copyright (c) 2001-2010, 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