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#if defined( _WIN32)
#include <windows.h>
#endif

#include <osd/cpuComputeContext.h>
#include <osd/cpuComputeController.h>
#include <osd/cpuEvalLimitContext.h>
#include <osd/cpuEvalLimitController.h>
#include <osd/cpuVertexBuffer.h>
#include <osd/error.h>
#include <osd/mesh.h>
#include <osd/vertex.h>

#include <osdutil/mesh.h>
#include <osdutil/refiner.h>

#include "../common/stopwatch.h"

#include <cfloat>
#include <vector>
#include <fstream>
#include <sstream>
#include <cstdlib>

#ifdef OPENSUBDIV_HAS_OPENMP
    #include <omp.h>
#endif

using namespace OpenSubdiv;

//------------------------------------------------------------------------------
typedef HbrMesh<OsdVertex>     OsdHbrMesh;
typedef HbrVertex<OsdVertex>   OsdHbrVertex;
typedef HbrFace<OsdVertex>     OsdHbrFace;
typedef HbrHalfedge<OsdVertex> OsdHbrHalfedge;

typedef FarMesh<OsdVertex>              OsdFarMesh;
typedef FarMeshFactory<OsdVertex>       OsdFarMeshFactory;
typedef FarSubdivisionTables<OsdVertex> OsdFarMeshSubdivision;



//------------------------------------------------------------------------------
static void
createOsdMesh(int level)
{
    float points[] = { 0.000000f, -1.414214f, 1.000000f,
                       1.414214f, 0.000000f, 1.000000f,
                       -1.414214f, 0.000000f, 1.000000f,
                       0.000000f, 1.414214f, 1.000000f,
                       -1.414214f, 0.000000f, -1.000000f,
                       0.000000f, 1.414214f, -1.000000f,
                       0.000000f, -1.414214f, -1.000000f,
                       1.414214f, 0.000000f, -1.000000f };

    int nverts[] = { 4, 4, 4, 4, 4, 4};

    int indices[] = { 0, 1, 3, 2,
                      2, 3, 5, 4,
                      4, 5, 7, 6,
                      6, 7, 1, 0,
                      1, 7, 5, 3,
                      6, 0, 2, 4};
    

//    Scheme scheme = kCatmark;

    PxOsdUtilSubdivTopology t;
    t.name = "TestSubdiv";
    for (int i=0; i< (int)(sizeof(nverts)/sizeof(int)); ++i) {
        t.nverts.push_back(nverts[i]);
    }
    for (int i=0; i< (int)(sizeof(indices)/sizeof(int)); ++i) {
        t.indices.push_back(indices[i]);
    }    
    t.numVertices = (int)sizeof(points)/(3*sizeof(float));
    t.maxLevels = 8;

    std::string errorMessage;        
    PxOsdUtilRefiner refiner;

    // Create refiner, passing "false" to adaptive so we'll get
    // uniform refinement
    if (not refiner.Initialize(t, false, &errorMessage)) {
        std::cout  << "Refiner creation failed with " << errorMessage << std::endl;
        return;
    }

    std::vector<int> refinedQuads;
    if (not refiner.GetRefinedQuads(&refinedQuads, &errorMessage)) {
        std::cout  << "GetRefinedQuads failed with " << errorMessage << std::endl;        
    }


    std::cout << "Quads = " << refinedQuads.size()/4 << std::endl;        
    for (int i=0; i<(int)refinedQuads.size(); i+=4)  {
        std::cout << "(" << refinedQuads[i] <<
            ", " << refinedQuads[i+1] <<
            ", " << refinedQuads[i+2] <<
            ", " << refinedQuads[i+3] <<
            ")\n";
    }
        
/*
  
    // Push the vertex data:
    std::vector<float> pointsVec;
    pointsVec.resize(sizeof(points));
    for (int i=0; i<(int)sizeof(points); ++i) {
        pointsVec[i] = points[i];
    }


    shape->SetCoarsePositions(pointsVec);

    std::vector<float> refinedPositions;


    if (not (shape->Refine(2)                                      and
             shape->GetPositions(&refinedPositions, &errorMessage) and
             shape->GetQuads(&refinedQuads, &errorMessage))) {
        std::cout << errorMessage << std::endl;
    } else {
        std::cout << "Hot damn, it worked.\n";
        std::cout << "Positions = " << refinedPositions.size()/3 << std::endl;
        for (int i=0; i<(int)refinedPositions.size(); i+=3)  {
            std::cout << "(" << refinedPositions[i] <<
                ", " << refinedPositions[i+1] <<
                "," << refinedPositions[i+2] << ")\n";
        }



        if (not shape->WriteRefinedObj("foo.obj", &errorMessage)) {
            std::cout << errorMessage << std::endl;             
        }
    }
         
*/  
}

//------------------------------------------------------------------------------
static void
callbackError(OpenSubdiv::OsdErrorType err, const char *message)
{
    printf("OsdError: %d\n", err);
    printf("%s", message);
}


//------------------------------------------------------------------------------
int main(int, char**) {


    OsdSetErrorCallback(callbackError);

    createOsdMesh(1);

}