/indra/newview/llsurfacepatch.h
https://bitbucket.org/lindenlab/viewer-beta/ · C++ Header · 185 lines · 102 code · 42 blank · 41 comment · 0 complexity · 217c86bfd05c4d7f98a72bd4a86d6924 MD5 · raw file
- /**
- * @file llsurfacepatch.h
- * @brief LLSurfacePatch class definition
- *
- * $LicenseInfo:firstyear=2001&license=viewerlgpl$
- * 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_LLSURFACEPATCH_H
- #define LL_LLSURFACEPATCH_H
- #include "v3math.h"
- #include "v3dmath.h"
- #include "llpointer.h"
- class LLSurface;
- class LLVOSurfacePatch;
- class LLVector2;
- class LLColor4U;
- class LLAgent;
- // A patch shouldn't know about its visibility since that really depends on the
- // camera that is looking (or not looking) at it. So, anything about a patch
- // that is specific to a camera should be in the class below.
- class LLPatchVisibilityInfo
- {
- public:
- LLPatchVisibilityInfo() :
- mbIsVisible(FALSE),
- mDistance(0.f),
- mRenderLevel(0),
- mRenderStride(0) { };
- ~LLPatchVisibilityInfo() { };
- BOOL mbIsVisible;
- F32 mDistance; // Distance from camera
- S32 mRenderLevel;
- U32 mRenderStride;
- };
- class LLSurfacePatch
- {
- public:
- LLSurfacePatch();
- ~LLSurfacePatch();
- void reset(const U32 id);
- void connectNeighbor(LLSurfacePatch *neighborp, const U32 direction);
- void disconnectNeighbor(LLSurface *surfacep);
- void setNeighborPatch(const U32 direction, LLSurfacePatch *neighborp);
- LLSurfacePatch *getNeighborPatch(const U32 direction) const;
- void colorPatch(const U8 r, const U8 g, const U8 b);
- BOOL updateTexture();
- void updateVerticalStats();
- void updateCompositionStats();
- void updateNormals();
- void updateEastEdge();
- void updateNorthEdge();
- void updateCameraDistanceRegion( const LLVector3 &pos_region);
- void updateVisibility();
- void updateGL();
- void dirtyZ(); // Dirty the z values of this patch
- void setHasReceivedData();
- BOOL getHasReceivedData() const;
- F32 getDistance() const;
- F32 getMaxZ() const;
- F32 getMinZ() const;
- F32 getMeanComposition() const;
- F32 getMinComposition() const;
- F32 getMaxComposition() const;
- const LLVector3 &getCenterRegion() const;
- const U64 &getLastUpdateTime() const;
- LLSurface *getSurface() const { return mSurfacep; }
- LLVector3 getPointAgent(const U32 x, const U32 y) const; // get the point at the offset.
- LLVector2 getTexCoords(const U32 x, const U32 y) const;
- void calcNormal(const U32 x, const U32 y, const U32 stride);
- const LLVector3 &getNormal(const U32 x, const U32 y) const;
- void eval(const U32 x, const U32 y, const U32 stride,
- LLVector3 *vertex, LLVector3 *normal, LLVector2 *tex0, LLVector2 *tex1);
-
-
- LLVector3 getOriginAgent() const;
- const LLVector3d &getOriginGlobal() const;
- void setOriginGlobal(const LLVector3d &origin_global);
-
- // connectivity -- each LLPatch points at 5 neighbors (or NULL)
- // +---+---+---+
- // | | 2 | 5 |
- // +---+---+---+
- // | 3 | 0 | 1 |
- // +---+---+---+
- // | 6 | 4 | |
- // +---+---+---+
- BOOL getVisible() const;
- U32 getRenderStride() const;
- S32 getRenderLevel() const;
- void setSurface(LLSurface *surfacep);
- void setDataZ(F32 *data_z) { mDataZ = data_z; }
- void setDataNorm(LLVector3 *data_norm) { mDataNorm = data_norm; }
- F32 *getDataZ() const { return mDataZ; }
- void dirty(); // Mark this surface patch as dirty...
- void clearDirty() { mDirty = FALSE; }
- void clearVObj();
- public:
- BOOL mHasReceivedData; // has the patch EVER received height data?
- BOOL mSTexUpdate; // Does the surface texture need to be updated?
- protected:
- LLSurfacePatch *mNeighborPatches[8]; // Adjacent patches
- BOOL mNormalsInvalid[9]; // Which normals are invalid
- BOOL mDirty;
- BOOL mDirtyZStats;
- BOOL mHeightsGenerated;
- U32 mDataOffset;
- F32 *mDataZ;
- LLVector3 *mDataNorm;
- // Pointer to the LLVOSurfacePatch object which is used in the new renderer.
- LLPointer<LLVOSurfacePatch> mVObjp;
- // All of the camera-dependent stuff should be in its own class...
- LLPatchVisibilityInfo mVisInfo;
- // pointers to beginnings of patch data fields
- LLVector3d mOriginGlobal;
- LLVector3 mOriginRegion;
- // height field stats
- LLVector3 mCenterRegion; // Center in region-local coords
- F32 mMinZ, mMaxZ, mMeanZ;
- F32 mRadius;
- F32 mMinComposition;
- F32 mMaxComposition;
- F32 mMeanComposition;
- U8 mConnectedEdge; // This flag is non-zero iff patch is on at least one edge
- // of LLSurface that is "connected" to another LLSurface
- U64 mLastUpdateTime; // Time patch was last updated
- LLSurface *mSurfacep; // Pointer to "parent" surface
- };
- #endif // LL_LLSURFACEPATCH_H