void computeWithDerivative(tbb::blocked_range<int> const &r) const {
float wP[20], wDs[20], wDt[20];
BufferAdapter<const float> srcT(_src + _srcDesc.offset,
_srcDesc.length,
_srcDesc.stride);
BufferAdapter<float> dstT(_dst + _dstDesc.offset
+ r.begin() * _dstDesc.stride,
_dstDesc.length,
_dstDesc.stride);
BufferAdapter<float> dstDuT(_dstDu + _dstDuDesc.offset
+ r.begin() * _dstDuDesc.stride,
_dstDuDesc.length,
_dstDuDesc.stride);
BufferAdapter<float> dstDvT(_dstDv + _dstDvDesc.offset
+ r.begin() * _dstDvDesc.stride,
_dstDvDesc.length,
_dstDvDesc.stride);
for (int i = r.begin(); i < r.end(); ++i) {
PatchCoord const &coord = _patchCoords[i];
PatchArray const &array = _patchArrayBuffer[coord.handle.arrayIndex];
int patchType = array.GetPatchType();
Far::PatchParam const & param =
_patchParamBuffer[coord.handle.patchIndex];
int numControlVertices = 0;
if (patchType == Far::PatchDescriptor::REGULAR) {
Far::internal::GetBSplineWeights(param,
coord.s, coord.t, wP, wDs, wDt);
numControlVertices = 16;
} else if (patchType == Far::PatchDescriptor::GREGORY_BASIS) {
Far::internal::GetGregoryWeights(param,
coord.s, coord.t, wP, wDs, wDt);
numControlVertices = 20;
} else if (patchType == Far::PatchDescriptor::QUADS) {
Far::internal::GetBilinearWeights(param,
coord.s, coord.t, wP, wDs, wDt);
numControlVertices = 4;
} else {
assert(0);
}
const int *cvs =
&_patchIndexBuffer[array.indexBase + coord.handle.vertIndex];
dstT.Clear();
dstDuT.Clear();
dstDvT.Clear();
for (int j = 0; j < numControlVertices; ++j) {
dstT.AddWithWeight(srcT[cvs[j]], wP[j]);
dstDuT.AddWithWeight(srcT[cvs[j]], wDs[j]);
dstDvT.AddWithWeight(srcT[cvs[j]], wDt[j]);
}
++dstT;
++dstDuT;
++dstDvT;
}
}
/* static */
bool
OmpEvaluator::EvalPatches(
const float *src, BufferDescriptor const &srcDesc,
float *dst, BufferDescriptor const &dstDesc,
int numPatchCoords,
const PatchCoord *patchCoords,
const PatchArray *patchArrays,
const int *patchIndexBuffer,
const PatchParam *patchParamBuffer){
src += srcDesc.offset;
if (dst) dst += dstDesc.offset;
else return false;
BufferAdapter<const float> srcT(src, srcDesc.length, srcDesc.stride);
#pragma omp parallel for
for (int i = 0; i < numPatchCoords; ++i) {
BufferAdapter<float> dstT(dst + dstDesc.stride*i, dstDesc.length, dstDesc.stride);
float wP[20], wDs[20], wDt[20];
PatchCoord const &coord = patchCoords[i];
PatchArray const &array = patchArrays[coord.handle.arrayIndex];
int patchType = array.GetPatchType();
// XXX: patchIndex is absolute. not sure it's consistent.
// (should be offsetted by array.primitiveIdBase?)
// patchParamBuffer[array.primitiveIdBase + coord.handle.patchIndex]
Far::PatchParam::BitField patchBits = *(Far::PatchParam::BitField*)
&patchParamBuffer[coord.handle.patchIndex].patchBits;
int numControlVertices = 0;
if (patchType == Far::PatchDescriptor::REGULAR) {
Far::internal::GetBSplineWeights(patchBits,
coord.s, coord.t, wP, wDs, wDt);
numControlVertices = 16;
} else if (patchType == Far::PatchDescriptor::GREGORY_BASIS) {
Far::internal::GetGregoryWeights(patchBits,
coord.s, coord.t, wP, wDs, wDt);
numControlVertices = 20;
} else if (patchType == Far::PatchDescriptor::QUADS) {
Far::internal::GetBilinearWeights(patchBits,
coord.s, coord.t, wP, wDs, wDt);
numControlVertices = 4;
} else {
continue;
}
const int *cvs =
&patchIndexBuffer[array.indexBase + coord.handle.vertIndex];
dstT.Clear();
for (int j = 0; j < numControlVertices; ++j) {
dstT.AddWithWeight(srcT[cvs[j]], wP[j]);
}
}
return true;
}
/* static */
bool
OmpEvaluator::EvalPatches(
const float *src, BufferDescriptor const &srcDesc,
float *dst, BufferDescriptor const &dstDesc,
float *du, BufferDescriptor const &duDesc,
float *dv, BufferDescriptor const &dvDesc,
int numPatchCoords,
PatchCoord const *patchCoords,
PatchArray const *patchArrays,
const int *patchIndexBuffer,
PatchParam const *patchParamBuffer) {
src += srcDesc.offset;
if (dst) dst += dstDesc.offset;
if (du) du += duDesc.offset;
if (dv) dv += dvDesc.offset;
BufferAdapter<const float> srcT(src, srcDesc.length, srcDesc.stride);
#pragma omp parallel for
for (int i = 0; i < numPatchCoords; ++i) {
float wP[20], wDs[20], wDt[20];
BufferAdapter<float> dstT(dst + dstDesc.stride*i, dstDesc.length, dstDesc.stride);
BufferAdapter<float> duT(du + duDesc.stride*i, duDesc.length, duDesc.stride);
BufferAdapter<float> dvT(dv + dvDesc.stride*i, dvDesc.length, dvDesc.stride);
PatchCoord const &coord = patchCoords[i];
PatchArray const &array = patchArrays[coord.handle.arrayIndex];
int patchType = array.GetPatchType();
Far::PatchParam::BitField patchBits = *(Far::PatchParam::BitField*)
&patchParamBuffer[coord.handle.patchIndex].patchBits;
int numControlVertices = 0;
if (patchType == Far::PatchDescriptor::REGULAR) {
Far::internal::GetBSplineWeights(patchBits,
coord.s, coord.t, wP, wDs, wDt);
numControlVertices = 16;
} else if (patchType == Far::PatchDescriptor::GREGORY_BASIS) {
Far::internal::GetGregoryWeights(patchBits,
coord.s, coord.t, wP, wDs, wDt);
numControlVertices = 20;
} else if (patchType == Far::PatchDescriptor::QUADS) {
Far::internal::GetBilinearWeights(patchBits,
coord.s, coord.t, wP, wDs, wDt);
numControlVertices = 4;
} else {
continue;
}
const int *cvs =
&patchIndexBuffer[array.indexBase + coord.handle.vertIndex];
dstT.Clear();
duT.Clear();
dvT.Clear();
for (int j = 0; j < numControlVertices; ++j) {
dstT.AddWithWeight(srcT[cvs[j]], wP[j]);
duT.AddWithWeight(srcT[cvs[j]], wDs[j]);
dvT.AddWithWeight(srcT[cvs[j]], wDt[j]);
}
++dstT;
++duT;
++dvT;
}
return true;
}
