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Diffstat (limited to 'indra/llappearance/llpolymesh.h')
| -rw-r--r-- | indra/llappearance/llpolymesh.h | 369 |
1 files changed, 369 insertions, 0 deletions
diff --git a/indra/llappearance/llpolymesh.h b/indra/llappearance/llpolymesh.h new file mode 100644 index 0000000000..ef1dfb1adb --- /dev/null +++ b/indra/llappearance/llpolymesh.h @@ -0,0 +1,369 @@ +/** + * @file llpolymesh.h + * @brief Implementation of LLPolyMesh 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_LLPOLYMESHINTERFACE_H +#define LL_LLPOLYMESHINTERFACE_H + +#include <string> +#include <map> +#include "llstl.h" + +#include "v3math.h" +#include "v2math.h" +#include "llquaternion.h" +#include "llpolymorph.h" +#include "lljoint.h" +//#include "lldarray.h" + +class LLSkinJoint; +class LLAvatarAppearance; +class LLWearable; + +//#define USE_STRIPS // Use tri-strips for rendering. + +//----------------------------------------------------------------------------- +// LLPolyFace +// A set of 4 vertex indices. +// An LLPolyFace can represent either a triangle or quad. +// If the last index is -1, it's a triangle. +//----------------------------------------------------------------------------- +typedef S32 LLPolyFace[3]; + +//struct PrimitiveGroup; + +//----------------------------------------------------------------------------- +// LLPolyMesh +// A polyhedra consisting of any number of triangles and quads. +// All instances contain a set of faces, and optionally may include +// faces grouped into named face sets. +//----------------------------------------------------------------------------- +class LLPolyMorphTarget; + +class LLPolyMeshSharedData +{ + friend class LLPolyMesh; +private: + // transform data + LLVector3 mPosition; + LLQuaternion mRotation; + LLVector3 mScale; + + // vertex data + S32 mNumVertices; + LLVector4a *mBaseCoords; + LLVector4a *mBaseNormals; + LLVector4a *mBaseBinormals; + LLVector2 *mTexCoords; + LLVector2 *mDetailTexCoords; + F32 *mWeights; + + BOOL mHasWeights; + BOOL mHasDetailTexCoords; + + // face data + S32 mNumFaces; + LLPolyFace *mFaces; + + // face set data + U32 mNumJointNames; + std::string* mJointNames; + + // morph targets + typedef std::set<LLPolyMorphData*> morphdata_list_t; + morphdata_list_t mMorphData; + + std::map<S32, S32> mSharedVerts; + + LLPolyMeshSharedData* mReferenceData; + S32 mLastIndexOffset; + +public: + // Temporarily... + // Triangle indices + U32 mNumTriangleIndices; + U32 *mTriangleIndices; + +public: + LLPolyMeshSharedData(); + ~LLPolyMeshSharedData(); + +private: + void setupLOD(LLPolyMeshSharedData* reference_data); + + // Frees all mesh memory resources + void freeMeshData(); + + void setPosition( const LLVector3 &pos ) { mPosition = pos; } + void setRotation( const LLQuaternion &rot ) { mRotation = rot; } + void setScale( const LLVector3 &scale ) { mScale = scale; } + + BOOL allocateVertexData( U32 numVertices ); + + BOOL allocateFaceData( U32 numFaces ); + + BOOL allocateJointNames( U32 numJointNames ); + + // Retrieve the number of KB of memory used by this instance + U32 getNumKB(); + + // Load mesh data from file + BOOL loadMesh( const std::string& fileName ); + +public: + void genIndices(S32 offset); + + const LLVector2 &getUVs(U32 index); + + const S32 *getSharedVert(S32 vert); + + BOOL isLOD() { return (mReferenceData != NULL); } +}; + + +class LLJointRenderData +{ +public: + LLJointRenderData(const LLMatrix4* world_matrix, LLSkinJoint* skin_joint) : mWorldMatrix(world_matrix), mSkinJoint(skin_joint) {} + ~LLJointRenderData(){} + + const LLMatrix4* mWorldMatrix; + LLSkinJoint* mSkinJoint; +}; + + +class LLPolyMesh +{ +public: + + // Constructor + LLPolyMesh(LLPolyMeshSharedData *shared_data, LLPolyMesh *reference_mesh); + + // Destructor + ~LLPolyMesh(); + + // Requests a mesh by name. + // If the mesh already exists in the global mesh table, it is returned, + // otherwise it is loaded from file, added to the table, and returned. + static LLPolyMesh *getMesh( const std::string &name, LLPolyMesh* reference_mesh = NULL); + + // Frees all loaded meshes. + // This should only be called once you know there are no outstanding + // references to these objects. Generally, upon exit of the application. + static void freeAllMeshes(); + + //-------------------------------------------------------------------- + // Transform Data Access + //-------------------------------------------------------------------- + // Get position + const LLVector3 &getPosition() { + llassert (mSharedData); + return mSharedData->mPosition; + } + + // Get rotation + const LLQuaternion &getRotation() { + llassert (mSharedData); + return mSharedData->mRotation; + } + + // Get scale + const LLVector3 &getScale() { + llassert (mSharedData); + return mSharedData->mScale; + } + + //-------------------------------------------------------------------- + // Vertex Data Access + //-------------------------------------------------------------------- + // Get number of vertices + U32 getNumVertices() { + llassert (mSharedData); + return mSharedData->mNumVertices; + } + + // Returns whether or not the mesh has detail texture coords + BOOL hasDetailTexCoords() { + llassert (mSharedData); + return mSharedData->mHasDetailTexCoords; + } + + // Returns whether or not the mesh has vertex weights + BOOL hasWeights() const{ + llassert (mSharedData); + return mSharedData->mHasWeights; + } + + // Get coords + const LLVector4a *getCoords() const{ + return mCoords; + } + + // non const version + LLVector4a *getWritableCoords(); + + // Get normals + const LLVector4a *getNormals() const{ + return mNormals; + } + + // Get normals + const LLVector4a *getBinormals() const{ + return mBinormals; + } + + // Get base mesh normals + const LLVector4a *getBaseNormals() const{ + llassert(mSharedData); + return mSharedData->mBaseNormals; + } + + // Get base mesh normals + const LLVector4a *getBaseBinormals() const{ + llassert(mSharedData); + return mSharedData->mBaseBinormals; + } + + // intermediate morphed normals and output normals + LLVector4a *getWritableNormals(); + LLVector4a *getScaledNormals(); + + LLVector4a *getWritableBinormals(); + LLVector4a *getScaledBinormals(); + + // Get texCoords + const LLVector2 *getTexCoords() const { + return mTexCoords; + } + + // non const version + LLVector2 *getWritableTexCoords(); + + // Get detailTexCoords + const LLVector2 *getDetailTexCoords() const { + llassert (mSharedData); + return mSharedData->mDetailTexCoords; + } + + // Get weights + const F32 *getWeights() const { + llassert (mSharedData); + return mSharedData->mWeights; + } + + F32 *getWritableWeights() const; + + LLVector4a *getWritableClothingWeights(); + + const LLVector4a *getClothingWeights() + { + return mClothingWeights; + } + + //-------------------------------------------------------------------- + // Face Data Access + //-------------------------------------------------------------------- + // Get number of faces + S32 getNumFaces() { + llassert (mSharedData); + return mSharedData->mNumFaces; + } + + // Get faces + LLPolyFace *getFaces() { + llassert (mSharedData); + return mSharedData->mFaces; + } + + U32 getNumJointNames() { + llassert (mSharedData); + return mSharedData->mNumJointNames; + } + + std::string *getJointNames() { + llassert (mSharedData); + return mSharedData->mJointNames; + } + + LLPolyMorphData* getMorphData(const std::string& morph_name); +// void removeMorphData(LLPolyMorphData *morph_target); +// void deleteAllMorphData(); + + LLPolyMeshSharedData *getSharedData() const; + LLPolyMesh *getReferenceMesh() { return mReferenceMesh ? mReferenceMesh : this; } + + // Get indices + U32* getIndices() { return mSharedData ? mSharedData->mTriangleIndices : NULL; } + + BOOL isLOD() { return mSharedData && mSharedData->isLOD(); } + + void setAvatar(LLAvatarAppearance* avatarp) { mAvatarp = avatarp; } + LLAvatarAppearance* getAvatar() { return mAvatarp; } + + LLDynamicArray<LLJointRenderData*> mJointRenderData; + + U32 mFaceVertexOffset; + U32 mFaceVertexCount; + U32 mFaceIndexOffset; + U32 mFaceIndexCount; + U32 mCurVertexCount; +private: + void initializeForMorph(); + + // Dumps diagnostic information about the global mesh table + static void dumpDiagInfo(); + +protected: + // mesh data shared across all instances of a given mesh + LLPolyMeshSharedData *mSharedData; + // Single array of floats for allocation / deletion + F32 *mVertexData; + // deformed vertices (resulting from application of morph targets) + LLVector4a *mCoords; + // deformed normals (resulting from application of morph targets) + LLVector4a *mScaledNormals; + // output normals (after normalization) + LLVector4a *mNormals; + // deformed binormals (resulting from application of morph targets) + LLVector4a *mScaledBinormals; + // output binormals (after normalization) + LLVector4a *mBinormals; + // weight values that mark verts as clothing/skin + LLVector4a *mClothingWeights; + // output texture coordinates + LLVector2 *mTexCoords; + + LLPolyMesh *mReferenceMesh; + + // global mesh list + typedef std::map<std::string, LLPolyMeshSharedData*> LLPolyMeshSharedDataTable; + static LLPolyMeshSharedDataTable sGlobalSharedMeshList; + + // Backlink only; don't make this an LLPointer. + LLAvatarAppearance* mAvatarp; +}; + +#endif // LL_LLPOLYMESHINTERFACE_H + |