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-rw-r--r--indra/newview/llsurface.h270
1 files changed, 135 insertions, 135 deletions
diff --git a/indra/newview/llsurface.h b/indra/newview/llsurface.h
index 33a64ae7d5..ca86e2334e 100644
--- a/indra/newview/llsurface.h
+++ b/indra/newview/llsurface.h
@@ -1,25 +1,25 @@
-/**
+/**
* @file llsurface.h
* @brief Description of LLSurface class
*
* $LicenseInfo:firstyear=2000&license=viewerlgpl$
* 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
* $/LicenseInfo$
*/
@@ -52,9 +52,9 @@ static const U8 NORTH_EDGE = 0x02;
static const U8 WEST_EDGE = 0x04;
static const U8 SOUTH_EDGE = 0x08;
-static const S32 ONE_MORE_THAN_NEIGHBOR = 1;
-static const S32 EQUAL_TO_NEIGHBOR = 0;
-static const S32 ONE_LESS_THAN_NEIGHBOR = -1;
+static const S32 ONE_MORE_THAN_NEIGHBOR = 1;
+static const S32 EQUAL_TO_NEIGHBOR = 0;
+static const S32 ONE_LESS_THAN_NEIGHBOR = -1;
const S32 ABOVE_WATERLINE_ALPHA = 32; // The alpha of water when the land elevation is above the waterline.
@@ -63,198 +63,198 @@ class LLSurfacePatch;
class LLBitPack;
class LLGroupHeader;
-class LLSurface
+class LLSurface
{
public:
- LLSurface(U32 type, LLViewerRegion *regionp = NULL);
- virtual ~LLSurface();
+ LLSurface(U32 type, LLViewerRegion *regionp = NULL);
+ virtual ~LLSurface();
+
+ static void initClasses(); // Do class initialization for LLSurface and its child classes.
- static void initClasses(); // Do class initialization for LLSurface and its child classes.
+ void create(const S32 surface_grid_width,
+ const S32 surface_patch_width,
+ const LLVector3d &origin_global,
+ const F32 width); // Allocates and initializes surface
- void create(const S32 surface_grid_width,
- const S32 surface_patch_width,
- const LLVector3d &origin_global,
- const F32 width); // Allocates and initializes surface
+ void setRegion(LLViewerRegion *regionp);
- void setRegion(LLViewerRegion *regionp);
+ void setOriginGlobal(const LLVector3d &origin_global);
- void setOriginGlobal(const LLVector3d &origin_global);
+ void connectNeighbor(LLSurface *neighborp, U32 direction);
+ void disconnectNeighbor(LLSurface *neighborp);
+ void disconnectAllNeighbors();
- void connectNeighbor(LLSurface *neighborp, U32 direction);
- void disconnectNeighbor(LLSurface *neighborp);
- void disconnectAllNeighbors();
+ virtual void decompressDCTPatch(LLBitPack &bitpack, LLGroupHeader *gopp, BOOL b_large_patch);
+ virtual void updatePatchVisibilities(LLAgent &agent);
- virtual void decompressDCTPatch(LLBitPack &bitpack, LLGroupHeader *gopp, BOOL b_large_patch);
- virtual void updatePatchVisibilities(LLAgent &agent);
+ inline F32 getZ(const U32 k) const { return mSurfaceZ[k]; }
+ inline F32 getZ(const S32 i, const S32 j) const { return mSurfaceZ[i + j*mGridsPerEdge]; }
- inline F32 getZ(const U32 k) const { return mSurfaceZ[k]; }
- inline F32 getZ(const S32 i, const S32 j) const { return mSurfaceZ[i + j*mGridsPerEdge]; }
+ LLVector3 getOriginAgent() const;
+ const LLVector3d &getOriginGlobal() const;
+ F32 getMetersPerGrid() const;
+ S32 getGridsPerEdge() const;
+ S32 getPatchesPerEdge() const;
+ S32 getGridsPerPatchEdge() const;
+ U32 getRenderStride(const U32 render_level) const;
+ U32 getRenderLevel(const U32 render_stride) const;
- LLVector3 getOriginAgent() const;
- const LLVector3d &getOriginGlobal() const;
- F32 getMetersPerGrid() const;
- S32 getGridsPerEdge() const;
- S32 getPatchesPerEdge() const;
- S32 getGridsPerPatchEdge() const;
- U32 getRenderStride(const U32 render_level) const;
- U32 getRenderLevel(const U32 render_stride) const;
+ // Returns the height of the surface immediately above (or below) location,
+ // or if location is not above surface returns zero.
+ F32 resolveHeightRegion(const F32 x, const F32 y) const;
+ F32 resolveHeightRegion(const LLVector3 &location) const
+ { return resolveHeightRegion( location.mV[VX], location.mV[VY] ); }
+ F32 resolveHeightGlobal(const LLVector3d &position_global) const;
+ LLVector3 resolveNormalGlobal(const LLVector3d& v) const; // Returns normal to surface
- // Returns the height of the surface immediately above (or below) location,
- // or if location is not above surface returns zero.
- F32 resolveHeightRegion(const F32 x, const F32 y) const;
- F32 resolveHeightRegion(const LLVector3 &location) const
- { return resolveHeightRegion( location.mV[VX], location.mV[VY] ); }
- F32 resolveHeightGlobal(const LLVector3d &position_global) const;
- LLVector3 resolveNormalGlobal(const LLVector3d& v) const; // Returns normal to surface
+ LLSurfacePatch *resolvePatchRegion(const F32 x, const F32 y) const;
+ LLSurfacePatch *resolvePatchRegion(const LLVector3 &position_region) const;
+ LLSurfacePatch *resolvePatchGlobal(const LLVector3d &position_global) const;
- LLSurfacePatch *resolvePatchRegion(const F32 x, const F32 y) const;
- LLSurfacePatch *resolvePatchRegion(const LLVector3 &position_region) const;
- LLSurfacePatch *resolvePatchGlobal(const LLVector3d &position_global) const;
+ // Update methods (called during idle, normally)
+ BOOL idleUpdate(F32 max_update_time);
- // Update methods (called during idle, normally)
- BOOL idleUpdate(F32 max_update_time);
+ BOOL containsPosition(const LLVector3 &position);
- BOOL containsPosition(const LLVector3 &position);
+ void moveZ(const S32 x, const S32 y, const F32 delta);
- void moveZ(const S32 x, const S32 y, const F32 delta);
+ LLViewerRegion *getRegion() const { return mRegionp; }
- LLViewerRegion *getRegion() const { return mRegionp; }
+ F32 getMinZ() const { return mMinZ; }
+ F32 getMaxZ() const { return mMaxZ; }
- F32 getMinZ() const { return mMinZ; }
- F32 getMaxZ() const { return mMaxZ; }
+ void setWaterHeight(F32 height);
+ F32 getWaterHeight() const;
- void setWaterHeight(F32 height);
- F32 getWaterHeight() const;
+ LLViewerTexture *getSTexture();
+ LLViewerTexture *getWaterTexture();
+ BOOL hasZData() const { return mHasZData; }
- LLViewerTexture *getSTexture();
- LLViewerTexture *getWaterTexture();
- BOOL hasZData() const { return mHasZData; }
+ void dirtyAllPatches(); // Use this to dirty all patches when changing terrain parameters
- void dirtyAllPatches(); // Use this to dirty all patches when changing terrain parameters
+ void dirtySurfacePatch(LLSurfacePatch *patchp);
+ LLVOWater *getWaterObj() { return mWaterObjp; }
- void dirtySurfacePatch(LLSurfacePatch *patchp);
- LLVOWater *getWaterObj() { return mWaterObjp; }
+ static void setTextureSize(const S32 texture_size);
- static void setTextureSize(const S32 texture_size);
+ friend class LLSurfacePatch;
+ friend std::ostream& operator<<(std::ostream &s, const LLSurface &S);
+
+ void getNeighboringRegions( std::vector<LLViewerRegion*>& uniqueRegions );
+ void getNeighboringRegionsStatus( std::vector<S32>& regions );
- friend class LLSurfacePatch;
- friend std::ostream& operator<<(std::ostream &s, const LLSurface &S);
-
- void getNeighboringRegions( std::vector<LLViewerRegion*>& uniqueRegions );
- void getNeighboringRegionsStatus( std::vector<S32>& regions );
-
public:
- // Number of grid points on one side of a region, including +1 buffer for
- // north and east edge.
- S32 mGridsPerEdge;
+ // Number of grid points on one side of a region, including +1 buffer for
+ // north and east edge.
+ S32 mGridsPerEdge;
+
+ F32 mOOGridsPerEdge; // Inverse of grids per edge
- F32 mOOGridsPerEdge; // Inverse of grids per edge
+ S32 mPatchesPerEdge; // Number of patches on one side of a region
+ S32 mNumberOfPatches; // Total number of patches
- S32 mPatchesPerEdge; // Number of patches on one side of a region
- S32 mNumberOfPatches; // Total number of patches
+ // Each surface points at 8 neighbors (or NULL)
+ // +---+---+---+
+ // |NW | N | NE|
+ // +---+---+---+
+ // | W | 0 | E |
+ // +---+---+---+
+ // |SW | S | SE|
+ // +---+---+---+
+ LLSurface *mNeighbors[8]; // Adjacent patches
- // Each surface points at 8 neighbors (or NULL)
- // +---+---+---+
- // |NW | N | NE|
- // +---+---+---+
- // | W | 0 | E |
- // +---+---+---+
- // |SW | S | SE|
- // +---+---+---+
- LLSurface *mNeighbors[8]; // Adjacent patches
+ U32 mType; // Useful for identifying derived classes
- U32 mType; // Useful for identifying derived classes
-
- F32 mDetailTextureScale; // Number of times to repeat detail texture across this surface
+ F32 mDetailTextureScale; // Number of times to repeat detail texture across this surface
protected:
- void createSTexture();
- void createWaterTexture();
- void initTextures();
- void initWater();
+ void createSTexture();
+ void createWaterTexture();
+ void initTextures();
+ void initWater();
- void createPatchData(); // Allocates memory for patches.
- void destroyPatchData(); // Deallocates memory for patches.
+ void createPatchData(); // Allocates memory for patches.
+ void destroyPatchData(); // Deallocates memory for patches.
- BOOL generateWaterTexture(const F32 x, const F32 y,
- const F32 width, const F32 height); // Generate texture from composition values.
+ BOOL generateWaterTexture(const F32 x, const F32 y,
+ const F32 width, const F32 height); // Generate texture from composition values.
- //F32 updateTexture(LLSurfacePatch *ppatch);
-
- LLSurfacePatch *getPatch(const S32 x, const S32 y) const;
+ //F32 updateTexture(LLSurfacePatch *ppatch);
+
+ LLSurfacePatch *getPatch(const S32 x, const S32 y) const;
protected:
- LLVector3d mOriginGlobal; // In absolute frame
- LLSurfacePatch *mPatchList; // Array of all patches
+ LLVector3d mOriginGlobal; // In absolute frame
+ LLSurfacePatch *mPatchList; // Array of all patches
- // Array of grid data, mGridsPerEdge * mGridsPerEdge
- F32 *mSurfaceZ;
+ // Array of grid data, mGridsPerEdge * mGridsPerEdge
+ F32 *mSurfaceZ;
- // Array of grid normals, mGridsPerEdge * mGridsPerEdge
- LLVector3 *mNorm;
+ // Array of grid normals, mGridsPerEdge * mGridsPerEdge
+ LLVector3 *mNorm;
- std::set<LLSurfacePatch *> mDirtyPatchList;
+ std::set<LLSurfacePatch *> mDirtyPatchList;
- // The textures should never be directly initialized - use the setter methods!
- LLPointer<LLViewerTexture> mSTexturep; // Texture for surface
- LLPointer<LLViewerTexture> mWaterTexturep; // Water texture
+ // The textures should never be directly initialized - use the setter methods!
+ LLPointer<LLViewerTexture> mSTexturep; // Texture for surface
+ LLPointer<LLViewerTexture> mWaterTexturep; // Water texture
- LLPointer<LLVOWater> mWaterObjp;
+ LLPointer<LLVOWater> mWaterObjp;
- // When we want multiple cameras we'll need one of each these for each camera
- S32 mVisiblePatchCount;
+ // When we want multiple cameras we'll need one of each these for each camera
+ S32 mVisiblePatchCount;
- U32 mGridsPerPatchEdge; // Number of grid points on a side of a patch
- F32 mMetersPerGrid; // Converts (i,j) indecies to distance
- F32 mMetersPerEdge; // = mMetersPerGrid * (mGridsPerEdge-1)
+ U32 mGridsPerPatchEdge; // Number of grid points on a side of a patch
+ F32 mMetersPerGrid; // Converts (i,j) indecies to distance
+ F32 mMetersPerEdge; // = mMetersPerGrid * (mGridsPerEdge-1)
- LLPatchVertexArray mPVArray;
+ LLPatchVertexArray mPVArray;
- BOOL mHasZData; // We've received any patch data for this surface.
- F32 mMinZ; // min z for this region (during the session)
- F32 mMaxZ; // max z for this region (during the session)
+ BOOL mHasZData; // We've received any patch data for this surface.
+ F32 mMinZ; // min z for this region (during the session)
+ F32 mMaxZ; // max z for this region (during the session)
- S32 mSurfacePatchUpdateCount; // Number of frames since last update.
+ S32 mSurfacePatchUpdateCount; // Number of frames since last update.
private:
- LLViewerRegion *mRegionp; // Patch whose coordinate system this surface is using.
- static S32 sTextureSize; // Size of the surface texture
+ LLViewerRegion *mRegionp; // Patch whose coordinate system this surface is using.
+ static S32 sTextureSize; // Size of the surface texture
};
// . __.
// Z /|\ /| Y North
-// | /
+// | /
// | / |<----------------- mGridsPerSurfaceEdge --------------->|
// | / __________________________________________________________
// |/______\ X /_______________________________________________________ /
-// / / / / / / / /M*M-2 /M*M-1 / /
-// /______/______/______/______/______/______/______/______/ /
-// / / / / / / / / / /
-// /______/______/______/______/______/______/______/______/ /
-// / / / / / / / / / /
-// /______/______/______/______/______/______/______/______/ /
-// West / / / / / / / / / /
+// / / / / / / / /M*M-2 /M*M-1 / /
+// /______/______/______/______/______/______/______/______/ /
+// / / / / / / / / / /
+// /______/______/______/______/______/______/______/______/ /
+// / / / / / / / / / /
+// /______/______/______/______/______/______/______/______/ /
+// West / / / / / / / / / /
// /______/______/______/______/______/______/______/______/ / East
-// /... / / / / / / / / /
-// /______/______/______/______/______/______/______/______/ /
-// _. / 2M / / / / / / / / /
-// /| /______/______/______/______/______/______/______/______/ /
-// / / M / M+1 / M+2 / ... / / / / 2M-1 / /
-// j /______/______/______/______/______/______/______/______/ /
-// / 0 / 1 / 2 / ... / / / / M-1 / /
-// /______/______/______/______/______/______/______/______/_/
+// /... / / / / / / / / /
+// /______/______/______/______/______/______/______/______/ /
+// _. / 2M / / / / / / / / /
+// /| /______/______/______/______/______/______/______/______/ /
+// / / M / M+1 / M+2 / ... / / / / 2M-1 / /
+// j /______/______/______/______/______/______/______/______/ /
+// / 0 / 1 / 2 / ... / / / / M-1 / /
+// /______/______/______/______/______/______/______/______/_/
// South |<-L->|
// i -->
//
// where M = mSurfPatchWidth
// and L = mPatchGridWidth
-//
+//
// Notice that mGridsPerSurfaceEdge = a power of two + 1
-// This provides a buffer on the east and north edges that will allow us to
+// This provides a buffer on the east and north edges that will allow us to
// fill the cracks between adjacent surfaces when rendering.
#endif
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