Changeset 1529 for GTP/trunk/App/Demos/Geom/Demo_LodStrips

Timestamp:

09/28/06 19:26:26 (18 years ago)

Author:

gumbau

Message:

Demos upgraded to the new programming interface

Location:

GTP/trunk/App/Demos/Geom/Demo_LodStrips

Files:

• Demo_LodStrips.suo (modified) (previous)
• main.cpp (modified) (3 diffs)

GTP/trunk/App/Demos/Geom/Demo_LodStrips/main.cpp

@@ -105 +105 @@
 };
 
-void DumpDataToOgreBuffers(Ogre::Mesh *original_mesh, Geometry::LodStripsLibrary *lodStripsLib)
-{
-        // Copy to Ogre buffers including the degenerated triangles
-
-        Ogre::HardwareIndexBufferSharedPtr      ibuf;
-        Ogre::IndexData *indexes;
+class CustomIndexData : public Geometry::IndexData
+{
+private:
+        Ogre::Mesh *targetMesh;
+        Ogre::HardwareIndexBufferSharedPtr ibuf;
         Ogre::RenderOperation mRenderOp;
-
-        for (int submesh=0; submesh < original_mesh->getNumSubMeshes(); submesh++)
-        {
-                int indices_to_render = lodStripsLib->GetValidIndexCount(submesh);
-                int offset = lodStripsLib->GetValidOffset(submesh);
-
-                original_mesh->getSubMesh(submesh)->_getRenderOperation(mRenderOp,0);
-
+        unsigned long* pIdx;
+public:
+        CustomIndexData(Ogre::Mesh *ogremesh):Geometry::IndexData(){
+                targetMesh=ogremesh;
+                pIdx=NULL;
+        }
+        virtual ~CustomIndexData(void){}
+
+        virtual void Begin(unsigned int submeshid, unsigned int indexcount){
+                targetMesh->getSubMesh(submeshid)->_getRenderOperation(mRenderOp,0);
                 ibuf = mRenderOp.indexData->indexBuffer;
-                mRenderOp.indexData->indexStart = 0;
-                mRenderOp.indexData->indexCount = indices_to_render;
-
-                unsigned long* pIdx = static_cast<unsigned long*>(ibuf->lock(Ogre::HardwareBuffer::HBL_NORMAL));
-
-                for (int k=0; k<indices_to_render; k++)
-                        pIdx[k] = lodStripsLib->dataRetrievalInterface->GetIndex(k+offset);
-
+                mRenderOp.indexData->indexCount = indexcount;
+                pIdx = static_cast<unsigned long*>(ibuf->lock(Ogre::HardwareBuffer::HBL_NORMAL));
+        }
+        virtual void SetIndex(unsigned int i, unsigned int index){
+                pIdx[i] = index; //lodStripsLib->dataRetrievalInterface->GetIndex(k+offset);
+        }
+        virtual void End(){
                 ibuf->unlock();
         }
-}
+        virtual unsigned int GetIndex(unsigned int) const { return 0; } // HAY QUE ELIMINAR ESTA FUNCION
+
+        virtual void BorrowIndexData(const Geometry::IndexData *){}
+
+};
 
 class FresnelFrameListener : public ExampleFrameListener
@@ -198 +202 @@
                 {
                         myStrips->GoToLod(lodfactor);
-                        DumpDataToOgreBuffers(ogreMesh,myStrips);
+//                      DumpDataToOgreBuffers(ogreMesh,myStrips);
                         lodfactorBefore=lodfactor;
                 }
@@ -401 +405 @@
             OGRE_EXCEPT(1, "The loaded mesh does not contain any LOD info","LOD Demo");
 
-                myStrips = new Geometry::LodStripsLibrary(meshloader->GetLodStripsData(),themesh);
+                myStrips = new Geometry::LodStripsLibrary(      meshloader->GetLodStripsData(),
+                                                                                                        themesh,
+                                                                                                        new CustomIndexData(ogreMesh)   );
                 
                 entity->setNormaliseNormals(true);