Changeset 2300 for GTP/trunk/Lib/Geom/shared/GTGeometry/src/GeoMeshSimplifier.cpp

Timestamp:

03/30/07 11:38:28 (18 years ago)

Author:

gumbau

Message:

 

File:

• GTP/trunk/Lib/Geom/shared/GTGeometry/src/GeoMeshSimplifier.cpp (modified) (12 diffs)

GTP/trunk/Lib/Geom/shared/GTGeometry/src/GeoMeshSimplifier.cpp

@@ -42 +42 @@
 
 //-------------------------------------------------------------------------
+//      Erase submeshes that have not indices.
+//-------------------------------------------------------------------------
+void    MeshSimplifier::eraseVoidSubMeshes(Mesh *geoMesh)
+{
+        SubMesh *geosubmesh;
+        size_t  valid_submesh_count;
+        size_t  submesh;
+
+        valid_submesh_count     =       0;
+
+        //      For each submesh.
+        for     (size_t i       =       0; i < geoMesh->mSubMeshCount;  i++)
+        {
+                //      Debug.
+                cout    <<      "Indices of submesh "
+                                        <<      i
+                                        <<      ": "
+                                        <<      geoMesh->mSubMesh[i].mIndexCount
+                                        <<      endl;
+
+                if ((geoMesh->mSubMesh[i].mIndexCount > 0)
+                                ||
+                                (indexMeshLeaves == i))
+                {
+                        valid_submesh_count++;
+                }
+        }
+
+        //      Reassign submesh count.
+        geoMesh->mSubMeshCount  =       valid_submesh_count;
+
+        //      Reserve memory for valid submeshes.
+        geosubmesh      =       new     SubMesh[valid_submesh_count];
+
+        submesh =       0;
+        
+        //      For each submesh.
+        for (size_t i = 0; i < geoMesh->mSubMeshCount; i++)
+        {
+                //      If leaves submesh is found.
+                if (indexMeshLeaves == i)
+                {
+                        geosubmesh[i].mStripCount       =       0;
+                        geosubmesh[i].mStrip                    =       NULL;
+
+                        geosubmesh[i].mSharedVertexBuffer       =       false;
+
+                        strcpy( geosubmesh[i].mMaterialName,
+                                        mInitialMesh->mSubMesh[i].mMaterialName);
+
+                        //      Copy submesh bones.
+                        if (!mInitialMesh->mSubMesh[i].mBones.empty())
+                        {
+                                for (   size_t j = 0;
+                                                j < mInitialMesh->mSubMesh[i].mBones.size();
+                                                j++)
+                                {
+                                        geosubmesh[i].mBones.push_back(mInitialMesh->
+                                                        mSubMesh[i].mBones[j]);
+                                }
+                        }
+
+                        //      Leaves mesh.
+                        geosubmesh[i].mIndexCount       =       
+                                mInitialMesh->mSubMesh[i].mIndexCount;
+
+                        geosubmesh[i].mIndex    =
+                                new Geometry::Index[geosubmesh[i].mIndexCount];
+
+                        memcpy( geosubmesh[i].mIndex,
+                                        mInitialMesh->mSubMesh[i].mIndex,
+                                        mInitialMesh->mSubMesh[i].mIndexCount * sizeof(Index));
+
+                        //      Copy the leaves submesh vertices.
+                        geosubmesh[i].mVertexBuffer     =
+                                mInitialMesh->mSubMesh[i].mVertexBuffer->Clone();
+
+                        //      Next valid submesh.
+                        submesh++;
+                }
+                else if (geoMesh->mSubMesh[i].mIndexCount > 0)
+                {
+                        geosubmesh[submesh].mSharedVertexBuffer =
+                                                                        geoMesh->mSubMesh[i].mSharedVertexBuffer;
+
+                        geosubmesh[submesh].mVertexBuffer       =       geoMesh->mVertexBuffer;
+
+                        geosubmesh[submesh].mType                               =       geoMesh->mSubMesh[i].mType;
+
+                        geosubmesh[submesh].mStripCount =       geoMesh->mSubMesh[i].mStripCount;
+
+                        geosubmesh[submesh].mIndexCount =       geoMesh->mSubMesh[i].mIndexCount;
+
+                        //      Reserve memory for indices.
+                        geosubmesh[submesh].mIndex      =
+                                                                                                        new Index[geosubmesh[submesh].mIndexCount];
+
+                        //      Copy indices.
+                        memcpy( geosubmesh[submesh].mIndex,
+                                        geoMesh->mSubMesh[i].mIndex,
+                                        geoMesh->mSubMesh[i].mIndexCount * sizeof(Index));
+
+                        //      Reserve memory for array of strips.
+                        geosubmesh[submesh].mStrip      =
+                                new Index*[geoMesh->mSubMesh[submesh].mStripCount];
+
+                        //      Copy strip list of the submesh.
+                        for (size_t j = 0; j < geoMesh->mSubMesh[i].mStripCount; j++)
+                        {
+                                geosubmesh[submesh].mStrip[j]   =       geoMesh->mSubMesh[i].mStrip[j];
+                        }
+
+                        strcpy( geosubmesh[submesh].mMaterialName,
+                                        geoMesh->mSubMesh[i].mMaterialName);
+
+                        for (size_t     j       =       0;      j < geoMesh->mSubMesh[i].mBones.size(); j++)
+                        {
+                                geosubmesh[submesh].mBones
+                                        .push_back(geoMesh->mSubMesh[i].mBones[j]);
+                        }
+
+                        //      Next valid submesh.
+                        submesh++;
+                }
+        }
+
+        //      Delete submeshes.
+        delete  []geoMesh->mSubMesh;
+
+        geoMesh->mSubMesh       =       geosubmesh;
+}
+
+//-------------------------------------------------------------------------
 // Returns the simplified mesh.
 //-------------------------------------------------------------------------
 Mesh *  MeshSimplifier::GetMesh()
 {
+        //      Delete void submeshes.
+        eraseVoidSubMeshes(mGeoMesh);
+
         return mGeoMesh;
 }
@@ -146 +282 @@
 // method to perform an image based simplification.
 //-------------------------------------------------------------------------
-void GeometryBasedSimplifier::Simplify(Real paramlod)
+int     GeometryBasedSimplifier::Simplify(Real paramlod)
 {
         SimplificationMethod *m_qslim   =       new SimplificationMethod(mInitialMesh);
@@ -157 +293 @@
 
         delete  m_qslim;
+
+        return  NO_GL_ERROR;
 }
 
@@ -165 +303 @@
 // perform an image based simplification.
 //-------------------------------------------------------------------------
-void GeometryBasedSimplifier::Simplify(uint32 numvertices)
+int     GeometryBasedSimplifier::Simplify(uint32 numvertices)
 {
         SimplificationMethod *m_qslim   =       new SimplificationMethod(mInitialMesh);
@@ -176 +314 @@
 
         delete m_qslim;
+
+        return  NO_GL_ERROR;
 }
 
@@ -235 +375 @@
         //      Loads the vmi mesh structure for a geometry mesh given.
         VMI::mesh = initMeshStructure(mGeoMesh);
+}
+
+//      Init VMI options.
+int     ViewPointDrivenSimplifier::init(void)
+{
+        int     error;
 
         // RGB and Alpha.
@@ -245 +391 @@
         glewInit();
 
-        VMI::init();
+        error   =       VMI::init();
 
         if (VMI::bLoadCamerasFromFile == GL_FALSE)
@@ -256 +402 @@
 
         VMI::initialIs  =       VMI::initIs(VMI::numCameras);
+
+        return  error;
 }
 
@@ -273 +421 @@
 ///     LOD factor in a range of [0,1]. Implements the
 ///     Simplifier::Simplify method to perform an image based simplification.
-void ViewPointDrivenSimplifier::Simplify(Real percent)
-{
+int ViewPointDrivenSimplifier::Simplify(Real percent)
+{
+        int error;
+
+        error   =        init();
+
         VMI::numDemandedTriangles = (int)(VMI::mesh->numTriangles * percent);
 
@@ -284 +436 @@
         }
 
-        VMI::display();
-
-        //      Cleans firts simplification.
-        VMI::freeMemory();
-
-        VMI::mesh =     initMeshStructure(mInitialMesh);
-
-        VMI::contractInitialMesh(VMI::mesh);
-
-        //      Load a geometry mesh for vmi mesh.
-        loadMesh();
-        
-        GetMeshSimpSequence();
-
-        //      Sort bones.
-        bonesReassignament();
+        if (error == NO_GL_ERROR)
+        {
+                VMI::display();
+
+                //      Cleans firts simplification.
+                VMI::freeMemory();
+
+                VMI::mesh =     initMeshStructure(mInitialMesh);
+
+                VMI::contractInitialMesh(VMI::mesh);
+
+                //      Load a geometry mesh for vmi mesh.
+                loadMesh();
+
+                GetMeshSimpSequence();
+
+                //      Sort bones.
+                bonesReassignament();
+        }
+
+        return  error;
 }
 
@@ -308 +465 @@
 ///     an image based simplification.
 //-------------------------------------------------------------------------
-void ViewPointDrivenSimplifier::Simplify(uint32 numVertices)
+int ViewPointDrivenSimplifier::Simplify(uint32 numVertices)
 {
         float   percent;
+        int     error;
+
+        error   =        init();
 
         percent =       (numVertices    *       100.0) / VMI::mesh->numVertices;
 
-        VMI::numDemandedTriangles = (int)(VMI::mesh->numTriangles * (percent / 100));
+        VMI::numDemandedTriangles = (int)(VMI::mesh->numTriangles
+                                                                                                                                                *
+                                                                                                                                                (percent / 100));
 
         if ((VMI::numDemandedTriangles == 0)
@@ -323 +485 @@
         }
 
-        VMI::display();
-
-        //      Cleans firts simplification.
-        VMI::freeMemory();
-
-        VMI::mesh =     initMeshStructure(mInitialMesh);
-
-        VMI::contractInitialMesh(VMI::mesh);
-        
-        //      Load a geometry mesh for vmi mesh.
-        loadMesh();
-        
-        GetMeshSimpSequence();
-
-        //      Sort bones.
-        bonesReassignament();
+        if (error == NO_GL_ERROR)
+        {
+                VMI::display();
+
+                //      Cleans firts simplification.
+                VMI::freeMemory();
+
+                VMI::mesh =     initMeshStructure(mInitialMesh);
+
+                VMI::contractInitialMesh(VMI::mesh);
+
+                //      Load a geometry mesh for vmi mesh.
+                loadMesh();
+
+                GetMeshSimpSequence();
+
+                //      Sort bones.
+                bonesReassignament();
+        }
+
+        return  error;
 }