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#include "../osd/cpuDispatcher.h"
#include "../osd/cpuKernel.h"

#include <GL/glew.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

namespace OpenSubdiv {
namespace OPENSUBDIV_VERSION {

OsdCpuKernelDispatcher::DeviceTable::~DeviceTable() {

    if (devicePtr) 
        free(devicePtr);
}

void
OsdCpuKernelDispatcher::DeviceTable::Copy( int size, const void *table ) {

    if (size > 0) {
        if (devicePtr) 
	    free(devicePtr);
        devicePtr = malloc(size);
        memcpy(devicePtr, table, size);
    }
}

OsdCpuKernelDispatcher::OsdCpuKernelDispatcher( int levels )
    : OsdKernelDispatcher(levels) {
    _tables.resize(TABLE_MAX);
}

OsdCpuKernelDispatcher::~OsdCpuKernelDispatcher() { }

void
OsdCpuKernelDispatcher::CopyTable(int tableIndex, size_t size, const void *ptr) {

    _tables[tableIndex].Copy(size, ptr);
}

void
OsdCpuKernelDispatcher::BeginLaunchKernel() { }

void
OsdCpuKernelDispatcher::EndLaunchKernel() { }

OsdVertexBuffer *
OsdCpuKernelDispatcher::InitializeVertexBuffer(int numElements, int count)
{
    return new OsdCpuVertexBuffer(numElements, count);
}

void
OsdCpuKernelDispatcher::BindVertexBuffer(OsdVertexBuffer *vertex, OsdVertexBuffer *varying) {

    _vertexBuffer = dynamic_cast<OsdCpuVertexBuffer *>(vertex);
    _varyingBuffer = dynamic_cast<OsdCpuVertexBuffer *>(varying);
}

void
OsdCpuKernelDispatcher::UnbindVertexBuffer()
{
    _vertexBuffer = NULL;
    _varyingBuffer = NULL;
}

void
OsdCpuKernelDispatcher::Synchronize() { }

void
OsdCpuKernelDispatcher::ApplyCatmarkFaceVerticesKernel( FarMesh<OsdVertex> * mesh, int offset, int level, int start, int end, void * data) const {
    
    VertexDescriptor vd(_vertexBuffer->GetNumElements(), _varyingBuffer->GetNumElements());

    computeFace(&vd, _vertexBuffer->GetCpuBuffer(), _varyingBuffer->GetCpuBuffer(),
                (int*)_tables[F_IT].devicePtr + _tableOffsets[F_IT][level-1],
                (int*)_tables[F_ITa].devicePtr + _tableOffsets[F_ITa][level-1],
                offset, start, end);

    float *p = _vertexBuffer->GetCpuBuffer();
    for(int i = 0; i < 150; i+=3){
        printf("%f %f %f\n", p[0], p[1], p[2]);
        p+=3;
    }
}

void
OsdCpuKernelDispatcher::ApplyCatmarkEdgeVerticesKernel( FarMesh<OsdVertex> * mesh, int offset, int level, int start, int end, void * data) const {
    
    VertexDescriptor vd(_vertexBuffer->GetNumElements(), _varyingBuffer->GetNumElements());

    computeEdge(&vd, _vertexBuffer->GetCpuBuffer(), _varyingBuffer->GetCpuBuffer(),
                (int*)_tables[E_IT].devicePtr + _tableOffsets[E_IT][level-1],
                (float*)_tables[E_W].devicePtr + _tableOffsets[E_W][level-1],
                offset, 
                start, end);
}

void
OsdCpuKernelDispatcher::ApplyCatmarkVertexVerticesKernelB( FarMesh<OsdVertex> * mesh, int offset, int level, int start, int end, void * data) const {
    
    VertexDescriptor vd(_vertexBuffer->GetNumElements(), _varyingBuffer->GetNumElements());

    computeVertexB(&vd, _vertexBuffer->GetCpuBuffer(), _varyingBuffer->GetCpuBuffer(),
                   (int*)_tables[V_ITa].devicePtr + _tableOffsets[V_ITa][level-1],
                   (int*)_tables[V_IT].devicePtr + _tableOffsets[V_IT][level-1],
                   (float*)_tables[V_W].devicePtr + _tableOffsets[V_W][level-1],
                   offset, start, end);
}

void
OsdCpuKernelDispatcher::ApplyCatmarkVertexVerticesKernelA( FarMesh<OsdVertex> * mesh, int offset, bool pass, int level, int start, int end, void * data) const {
    
    VertexDescriptor vd(_vertexBuffer->GetNumElements(), _varyingBuffer->GetNumElements());

    computeVertexA(&vd, _vertexBuffer->GetCpuBuffer(), _varyingBuffer->GetCpuBuffer(),
                   (int*)_tables[V_ITa].devicePtr + _tableOffsets[V_ITa][level-1],
                   (float*)_tables[V_W].devicePtr + _tableOffsets[V_W][level-1],
                   offset, start, end, pass);
}

void
OsdCpuKernelDispatcher::ApplyLoopEdgeVerticesKernel( FarMesh<OsdVertex> * mesh, int offset, int level, int start, int end, void * data) const {
    
    VertexDescriptor vd(_vertexBuffer->GetNumElements(), _varyingBuffer->GetNumElements());

    computeEdge(&vd, _vertexBuffer->GetCpuBuffer(), _varyingBuffer->GetCpuBuffer(),
                (int*)_tables[E_IT].devicePtr + _tableOffsets[E_IT][level-1],
                (float*)_tables[E_W].devicePtr + _tableOffsets[E_W][level-1],
                offset, 
                start, end);
}

void
OsdCpuKernelDispatcher::ApplyLoopVertexVerticesKernelB( FarMesh<OsdVertex> * mesh, int offset, int level, int start, int end, void * data) const {
    
    VertexDescriptor vd(_vertexBuffer->GetNumElements(), _varyingBuffer->GetNumElements());

    computeLoopVertexB(&vd, _vertexBuffer->GetCpuBuffer(), _varyingBuffer->GetCpuBuffer(),
                       (int*)_tables[V_ITa].devicePtr + _tableOffsets[V_ITa][level-1],
                       (int*)_tables[V_IT].devicePtr + _tableOffsets[V_IT][level-1],
                       (float*)_tables[V_W].devicePtr + _tableOffsets[V_W][level-1],
                       offset, start, end);
}

void
OsdCpuKernelDispatcher::ApplyLoopVertexVerticesKernelA( FarMesh<OsdVertex> * mesh, int offset, bool pass, int level, int start, int end, void * data) const {
    
    VertexDescriptor vd(_vertexBuffer->GetNumElements(), _varyingBuffer->GetNumElements());

    computeVertexA(&vd, _vertexBuffer->GetCpuBuffer(), _varyingBuffer->GetCpuBuffer(),
                   (int*)_tables[V_ITa].devicePtr + _tableOffsets[V_ITa][level-1],
                   (float*)_tables[V_W].devicePtr + _tableOffsets[V_W][level-1],
                   offset, start, end, pass);
}

} // end namespace OPENSUBDIV_VERSION
using namespace OPENSUBDIV_VERSION;

} // end namespace OpenSubdiv