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#include "../osd/cpuComputeContext.h"
#include "../osd/ompComputeController.h"
#include "../osd/ompKernel.h"
#include "../osd/table.h"

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

namespace OpenSubdiv {
namespace OPENSUBDIV_VERSION {


OsdOmpComputeController::OsdOmpComputeController(int numThreads) {

    _numThreads = (numThreads == -1) ? omp_get_num_procs() : numThreads;
}


void
OsdOmpComputeController::ApplyBilinearFaceVerticesKernel(
    FarKernelBatch const &batch, void *clientdata) const {

    OsdCpuComputeContext * context =
        static_cast<OsdCpuComputeContext*>(clientdata);
    assert(context);

    OsdOmpComputeFace(
        context->GetVertexDescriptor(),
        context->GetCurrentVertexBuffer(),
        context->GetCurrentVaryingBuffer(),
        (const int*)context->GetTable(Table::F_IT)->GetBuffer(),
        (const int*)context->GetTable(Table::F_ITa)->GetBuffer(),
        batch.vertexOffset, batch.tableOffset, batch.start, batch.end);
}

void
OsdOmpComputeController::ApplyBilinearEdgeVerticesKernel(
    FarKernelBatch const &batch, void *clientdata) const {

    OsdCpuComputeContext * context =
        static_cast<OsdCpuComputeContext*>(clientdata);
    assert(context);

    OsdOmpComputeBilinearEdge(
        context->GetVertexDescriptor(),
        context->GetCurrentVertexBuffer(),
        context->GetCurrentVaryingBuffer(),
        (const int*)context->GetTable(Table::E_IT)->GetBuffer(),
        batch.vertexOffset, batch.tableOffset, batch.start, batch.end);
}

void
OsdOmpComputeController::ApplyBilinearVertexVerticesKernel(
    FarKernelBatch const &batch, void *clientdata) const {

    OsdCpuComputeContext * context =
        static_cast<OsdCpuComputeContext*>(clientdata);
    assert(context);

    OsdOmpComputeBilinearVertex(
        context->GetVertexDescriptor(),
        context->GetCurrentVertexBuffer(),
        context->GetCurrentVaryingBuffer(),
        (const int*)context->GetTable(Table::V_ITa)->GetBuffer(),
        batch.vertexOffset, batch.tableOffset, batch.start, batch.end);
}

void
OsdOmpComputeController::ApplyCatmarkFaceVerticesKernel(
    FarKernelBatch const &batch, void *clientdata) const {

    OsdCpuComputeContext * context =
        static_cast<OsdCpuComputeContext*>(clientdata);
    assert(context);

    OsdOmpComputeFace(
        context->GetVertexDescriptor(),
        context->GetCurrentVertexBuffer(),
        context->GetCurrentVaryingBuffer(),
        (const int*)context->GetTable(Table::F_IT)->GetBuffer(),
        (const int*)context->GetTable(Table::F_ITa)->GetBuffer(),
        batch.vertexOffset, batch.tableOffset, batch.start, batch.end);
}

void
OsdOmpComputeController::ApplyCatmarkEdgeVerticesKernel(
    FarKernelBatch const &batch, void *clientdata) const {

    OsdCpuComputeContext * context =
        static_cast<OsdCpuComputeContext*>(clientdata);
    assert(context);

    OsdOmpComputeEdge(
        context->GetVertexDescriptor(),
        context->GetCurrentVertexBuffer(),
        context->GetCurrentVaryingBuffer(),
        (const int*)context->GetTable(Table::E_IT)->GetBuffer(),
        (const float*)context->GetTable(Table::E_W)->GetBuffer(),
        batch.vertexOffset, batch.tableOffset, batch.start, batch.end);
}

void
OsdOmpComputeController::ApplyCatmarkVertexVerticesKernelB(
    FarKernelBatch const &batch, void *clientdata) const {

    OsdCpuComputeContext * context =
        static_cast<OsdCpuComputeContext*>(clientdata);
    assert(context);

    OsdOmpComputeVertexB(
        context->GetVertexDescriptor(),
        context->GetCurrentVertexBuffer(),
        context->GetCurrentVaryingBuffer(),
        (const int*)context->GetTable(Table::V_ITa)->GetBuffer(),
        (const int*)context->GetTable(Table::V_IT)->GetBuffer(),
        (const float*)context->GetTable(Table::V_W)->GetBuffer(),
        batch.vertexOffset, batch.tableOffset, batch.start, batch.end);
}

void
OsdOmpComputeController::ApplyCatmarkVertexVerticesKernelA1(
    FarKernelBatch const &batch, void *clientdata) const {

    OsdCpuComputeContext * context =
        static_cast<OsdCpuComputeContext*>(clientdata);
    assert(context);

    OsdOmpComputeVertexA(
        context->GetVertexDescriptor(),
        context->GetCurrentVertexBuffer(),
        context->GetCurrentVaryingBuffer(),
        (const int*)context->GetTable(Table::V_ITa)->GetBuffer(),
        (const float*)context->GetTable(Table::V_W)->GetBuffer(),
        batch.vertexOffset, batch.tableOffset, batch.start, batch.end, false);
}

void
OsdOmpComputeController::ApplyCatmarkVertexVerticesKernelA2(
    FarKernelBatch const &batch, void *clientdata) const {

    OsdCpuComputeContext * context =
        static_cast<OsdCpuComputeContext*>(clientdata);
    assert(context);

    OsdOmpComputeVertexA(
        context->GetVertexDescriptor(),
        context->GetCurrentVertexBuffer(),
        context->GetCurrentVaryingBuffer(),
        (const int*)context->GetTable(Table::V_ITa)->GetBuffer(),
        (const float*)context->GetTable(Table::V_W)->GetBuffer(),
        batch.vertexOffset, batch.tableOffset, batch.start, batch.end, true);
}

void
OsdOmpComputeController::ApplyLoopEdgeVerticesKernel(
    FarKernelBatch const &batch, void *clientdata) const {

    OsdCpuComputeContext * context =
        static_cast<OsdCpuComputeContext*>(clientdata);
    assert(context);

    OsdOmpComputeEdge(
        context->GetVertexDescriptor(),
        context->GetCurrentVertexBuffer(),
        context->GetCurrentVaryingBuffer(),
        (const int*)context->GetTable(Table::E_IT)->GetBuffer(),
        (const float*)context->GetTable(Table::E_W)->GetBuffer(),
        batch.vertexOffset, batch.tableOffset, batch.start, batch.end);
}

void
OsdOmpComputeController::ApplyLoopVertexVerticesKernelB(
    FarKernelBatch const &batch, void *clientdata) const {

    OsdCpuComputeContext * context =
        static_cast<OsdCpuComputeContext*>(clientdata);
    assert(context);

    OsdOmpComputeLoopVertexB(
        context->GetVertexDescriptor(),
        context->GetCurrentVertexBuffer(),
        context->GetCurrentVaryingBuffer(),
        (const int*)context->GetTable(Table::V_ITa)->GetBuffer(),
        (const int*)context->GetTable(Table::V_IT)->GetBuffer(),
        (const float*)context->GetTable(Table::V_W)->GetBuffer(),
        batch.vertexOffset, batch.tableOffset, batch.start, batch.end);
}

void
OsdOmpComputeController::ApplyLoopVertexVerticesKernelA1(
    FarKernelBatch const &batch, void *clientdata) const {

    OsdCpuComputeContext * context =
        static_cast<OsdCpuComputeContext*>(clientdata);
    assert(context);

    OsdOmpComputeVertexA(
        context->GetVertexDescriptor(),
        context->GetCurrentVertexBuffer(),
        context->GetCurrentVaryingBuffer(),
        (const int*)context->GetTable(Table::V_ITa)->GetBuffer(),
        (const float*)context->GetTable(Table::V_W)->GetBuffer(),
        batch.vertexOffset, batch.tableOffset, batch.start, batch.end, false);
}

void
OsdOmpComputeController::ApplyLoopVertexVerticesKernelA2(
    FarKernelBatch const &batch, void *clientdata) const {

    OsdCpuComputeContext * context =
        static_cast<OsdCpuComputeContext*>(clientdata);
    assert(context);

    OsdOmpComputeVertexA(
        context->GetVertexDescriptor(),
        context->GetCurrentVertexBuffer(),
        context->GetCurrentVaryingBuffer(),
        (const int*)context->GetTable(Table::V_ITa)->GetBuffer(),
        (const float*)context->GetTable(Table::V_W)->GetBuffer(),
        batch.vertexOffset, batch.tableOffset, batch.start, batch.end, true);
}

void
OsdOmpComputeController::ApplyVertexEdits(
    FarKernelBatch const &batch, void * clientdata) const {

    OsdCpuComputeContext * context =
        static_cast<OsdCpuComputeContext*>(clientdata);
    assert(context);

    const OsdCpuHEditTable *edit = context->GetEditTable(batch.tableIndex);
    assert(edit);

    const OsdCpuTable * primvarIndices = edit->GetPrimvarIndices();
    const OsdCpuTable * editValues = edit->GetEditValues();

    if (edit->GetOperation() == FarVertexEdit::Add) {
        OsdOmpEditVertexAdd(context->GetVertexDescriptor(),
                            context->GetCurrentVertexBuffer(),
                            edit->GetPrimvarOffset(),
                            edit->GetPrimvarWidth(),
                            batch.vertexOffset,
                            batch.tableOffset,
                            batch.start,
                            batch.end,
                            static_cast<unsigned int*>(primvarIndices->GetBuffer()),
                            static_cast<float*>(editValues->GetBuffer()));
    } else if (edit->GetOperation() == FarVertexEdit::Set) {
        OsdOmpEditVertexSet(context->GetVertexDescriptor(),
                            context->GetCurrentVertexBuffer(),
                            edit->GetPrimvarOffset(),
                            edit->GetPrimvarWidth(),
                            batch.vertexOffset,
                            batch.tableOffset,
                            batch.start,
                            batch.end,
                            static_cast<unsigned int*>(primvarIndices->GetBuffer()),
                            static_cast<float*>(editValues->GetBuffer()));
    }
}

void
OsdOmpComputeController::Synchronize() {
    // XXX: 
}

}  // end namespace OPENSUBDIV_VERSION
}  // end namespace OpenSubdiv