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OpenSubdiv/opensubdiv/osd/tbbKernel.cpp
manuelk 3ae50d1c50 Amending Apache license language & file headers. 
New text:

     Copyright 2013 Pixar

     Licensed under the Apache License, Version 2.0 (the "Apache License")
     with the following modification; you may not use this file except in
     compliance with the Apache License and the following modification to it:
     Section 6. Trademarks. is deleted and replaced with:

     6. Trademarks. This License does not grant permission to use the trade
        names, trademarks, service marks, or product names of the Licensor
        and its affiliates, except as required to comply with Section 4(c) of
        the License and to reproduce the content of the NOTICE file.

     You may obtain a copy of the Apache License at

         http://www.apache.org/licenses/LICENSE-2.0

     Unless required by applicable law or agreed to in writing, software
     distributed under the Apache License with the above modification is
     distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
     KIND, either express or implied. See the Apache License for the specific
     language governing permissions and limitations under the Apache License.
2013-09-26 12:04:57 -07:00

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//
// Copyright 2013 Pixar
//
// Licensed under the Apache License, Version 2.0 (the "Apache License")
// with the following modification; you may not use this file except in
// compliance with the Apache License and the following modification to it:
// Section 6. Trademarks. is deleted and replaced with:
//
// 6. Trademarks. This License does not grant permission to use the trade
// names, trademarks, service marks, or product names of the Licensor
// and its affiliates, except as required to comply with Section 4(c) of
// the License and to reproduce the content of the NOTICE file.
//
// You may obtain a copy of the Apache License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the Apache License with the above modification is
// distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied. See the Apache License for the specific
// language governing permissions and limitations under the Apache License.
//
#include "../osd/cpuKernel.h"
#include "../osd/tbbKernel.h"
#include "../osd/vertexDescriptor.h"
#include <math.h>
#include <tbb/parallel_for.h>
namespace OpenSubdiv {
namespace OPENSUBDIV_VERSION {
#define grain_size 200
class TBBFaceKernel {
OsdVertexDescriptor const *vdesc;
float *vertex;
float *varying;
int const *F_IT;
int const *F_ITa;
int vertexOffset;
int tableOffset;
public:
void operator() (tbb::blocked_range<int> const &r) const {
if(vdesc->numVertexElements == 4 && varying == NULL) {
ComputeFaceKernel<4>
(vertex, F_IT, F_ITa, vertexOffset, tableOffset, r.begin(), r.end());
} else if(vdesc->numVertexElements == 8 && varying == NULL) {
ComputeFaceKernel<8>
(vertex, F_IT, F_ITa, vertexOffset, tableOffset, r.begin(), r.end());
}
else {
for (int i = r.begin() + tableOffset; i < r.end() + tableOffset; i++) {
int h = F_ITa[2*i];
int n = F_ITa[2*i+1];
float weight = 1.0f/n;
// XXX: should use local vertex struct variable instead of
// accumulating directly into global memory.
int dstIndex = i + vertexOffset - tableOffset;
vdesc->Clear(vertex, varying, dstIndex);
for (int j = 0; j < n; ++j) {
int index = F_IT[h+j];
vdesc->AddWithWeight(vertex, dstIndex, index, weight);
vdesc->AddVaryingWithWeight(varying, dstIndex, index, weight);
}
}
}
}
TBBFaceKernel(TBBFaceKernel const &other)
{
this->vdesc = other.vdesc;
this->vertex = other.vertex;
this->varying= other.varying;
this->F_IT = other.F_IT;
this->F_ITa = other.F_ITa;
this->vertexOffset = other.vertexOffset;
this->tableOffset = other.tableOffset;
}
TBBFaceKernel(OsdVertexDescriptor const *vdesc_in,
float *vertex_in,
float *varying_in,
int const *F_IT_in,
int const *F_ITa_in,
int vertexOffset_in,
int tableOffset_in) :
vdesc (vdesc_in),
vertex (vertex_in),
varying(varying_in),
F_IT (F_IT_in),
F_ITa (F_ITa_in),
vertexOffset(vertexOffset_in),
tableOffset(tableOffset_in)
{};
};
void OsdTbbComputeFace(
OsdVertexDescriptor const &vdesc, float * vertex, float * varying,
int const *F_IT, int const *F_ITa, int vertexOffset, int tableOffset,
int start, int end) {
TBBFaceKernel kernel(&vdesc, vertex, varying, F_IT, F_ITa,
vertexOffset, tableOffset);
tbb::blocked_range<int> range(start, end, grain_size);
tbb::parallel_for(range, kernel);
}
class TBBEdgeKernel {
OsdVertexDescriptor const *vdesc;
float *vertex;
float *varying;
int const *E_IT;
float const *E_W;
int vertexOffset;
int tableOffset;
public:
void operator() (tbb::blocked_range<int> const &r) const {
if(vdesc->numVertexElements == 4 && varying == NULL) {
ComputeEdgeKernel<4>(vertex, E_IT, E_W, vertexOffset, tableOffset,
r.begin(), r.end());
}
else if(vdesc->numVertexElements == 8 && varying == NULL) {
ComputeEdgeKernel<8>(vertex, E_IT, E_W, vertexOffset, tableOffset,
r.begin(), r.end());
}
else {
for (int i = r.begin() + tableOffset; i < r.end() + tableOffset; i++) {
int eidx0 = E_IT[4*i+0];
int eidx1 = E_IT[4*i+1];
int eidx2 = E_IT[4*i+2];
int eidx3 = E_IT[4*i+3];
float vertWeight = E_W[i*2+0];
int dstIndex = i + vertexOffset - tableOffset;
vdesc->Clear(vertex, varying, dstIndex);
vdesc->AddWithWeight(vertex, dstIndex, eidx0, vertWeight);
vdesc->AddWithWeight(vertex, dstIndex, eidx1, vertWeight);
if (eidx2 != -1) {
float faceWeight = E_W[i*2+1];
vdesc->AddWithWeight(vertex, dstIndex, eidx2, faceWeight);
vdesc->AddWithWeight(vertex, dstIndex, eidx3, faceWeight);
}
vdesc->AddVaryingWithWeight(varying, dstIndex, eidx0, 0.5f);
vdesc->AddVaryingWithWeight(varying, dstIndex, eidx1, 0.5f);
}
}
}
TBBEdgeKernel(TBBEdgeKernel const &other)
{
this->vdesc = other.vdesc;
this->vertex = other.vertex;
this->varying= other.varying;
this->E_IT = other.E_IT;
this->E_W = other.E_W;
this->vertexOffset = other.vertexOffset;
this->tableOffset = other.tableOffset;
}
TBBEdgeKernel(OsdVertexDescriptor const *vdesc_in,
float *vertex_in,
float *varying_in,
int const *E_IT_in,
float const *E_W_in,
int vertexOffset_in,
int tableOffset_in) :
vdesc (vdesc_in),
vertex (vertex_in),
varying(varying_in),
E_IT (E_IT_in),
E_W (E_W_in),
vertexOffset(vertexOffset_in),
tableOffset(tableOffset_in)
{};
};
void OsdTbbComputeEdge(
OsdVertexDescriptor const &vdesc, float *vertex, float *varying,
int const *E_IT, float const *E_W, int vertexOffset, int tableOffset,
int start, int end) {
tbb::blocked_range<int> range(start, end, grain_size);
TBBEdgeKernel kernel(&vdesc, vertex, varying, E_IT, E_W,
vertexOffset, tableOffset);
tbb::parallel_for(range, kernel);
}
class TBBVertexKernelA {
OsdVertexDescriptor const *vdesc;
float *vertex;
float *varying;
int const *V_ITa;
float const *V_W;
int vertexOffset;
int tableOffset;
int pass;
public:
void operator() (tbb::blocked_range<int> const &r) const {
if(vdesc->numVertexElements == 4 && varying == NULL) {
ComputeVertexAKernel<4>(vertex, V_ITa, V_W, vertexOffset, tableOffset,
r.begin(), r.end(), pass);
}
else if (vdesc->numVertexElements == 8 && varying == NULL) {
ComputeVertexAKernel<8>(vertex, V_ITa, V_W, vertexOffset, tableOffset,
r.begin(), r.end(), pass);
}
else {
for (int i = r.begin() + tableOffset; i < r.end() + tableOffset; i++) {
int n = V_ITa[5*i+1];
int p = V_ITa[5*i+2];
int eidx0 = V_ITa[5*i+3];
int eidx1 = V_ITa[5*i+4];
float weight = (pass == 1) ? V_W[i] : 1.0f - V_W[i];
// In the case of fractional weight, the weight must be inverted since
// the value is shared with the k_Smooth kernel (statistically the
// k_Smooth kernel runs much more often than this one)
if (weight > 0.0f && weight < 1.0f && n > 0)
weight = 1.0f - weight;
int dstIndex = i + vertexOffset - tableOffset;
if (not pass)
vdesc->Clear(vertex, varying, dstIndex);
if (eidx0 == -1 || (pass == 0 && (n == -1))) {
vdesc->AddWithWeight(vertex, dstIndex, p, weight);
} else {
vdesc->AddWithWeight(vertex, dstIndex, p, weight * 0.75f);
vdesc->AddWithWeight(vertex, dstIndex, eidx0, weight * 0.125f);
vdesc->AddWithWeight(vertex, dstIndex, eidx1, weight * 0.125f);
}
if (not pass)
vdesc->AddVaryingWithWeight(varying, dstIndex, p, 1.0f);
}
}
}
TBBVertexKernelA(TBBVertexKernelA const &other)
{
this->vdesc = other.vdesc;
this->vertex = other.vertex;
this->varying= other.varying;
this->V_ITa = other.V_ITa;
this->V_W = other.V_W;
this->vertexOffset = other.vertexOffset;
this->tableOffset = other.tableOffset;
this->pass = other.pass;
}
TBBVertexKernelA(OsdVertexDescriptor const *vdesc_in,
float *vertex_in,
float *varying_in,
int const *V_ITa_in,
float const *V_W_in,
int vertexOffset_in,
int tableOffset_in,
int pass_in) :
vdesc (vdesc_in),
vertex (vertex_in),
varying(varying_in),
V_ITa (V_ITa_in),
V_W (V_W_in),
vertexOffset(vertexOffset_in),
tableOffset(tableOffset_in),
pass(pass_in)
{};
};
void OsdTbbComputeVertexA(
OsdVertexDescriptor const &vdesc, float *vertex, float *varying,
int const *V_ITa, float const *V_W, int vertexOffset, int tableOffset,
int start, int end, int pass) {
tbb::blocked_range<int> range(start, end, grain_size);
TBBVertexKernelA kernel(&vdesc, vertex, varying, V_ITa, V_W,
vertexOffset, tableOffset, pass);
tbb::parallel_for(range, kernel);
}
class TBBVertexKernelB {
OsdVertexDescriptor const *vdesc;
float *vertex;
float *varying;
int const *V_ITa;
int const *V_IT;
float const *V_W;
int vertexOffset;
int tableOffset;
public:
void operator() (tbb::blocked_range<int> const &r) const {
if(vdesc->numVertexElements == 4 && varying == NULL) {
ComputeVertexBKernel<4>(vertex, V_ITa, V_IT, V_W,
vertexOffset, tableOffset, r.begin(), r.end());
}
else if(vdesc->numVertexElements == 8 && varying == NULL) {
ComputeVertexBKernel<8>(vertex, V_ITa, V_IT, V_W,
vertexOffset, tableOffset, r.begin(), r.end());
}
else {
for (int i = r.begin() + tableOffset; i < r.end() + tableOffset; i++) {
int h = V_ITa[5*i];
int n = V_ITa[5*i+1];
int p = V_ITa[5*i+2];
float weight = V_W[i];
float wp = 1.0f/static_cast<float>(n*n);
float wv = (n-2.0f) * n * wp;
int dstIndex = i + vertexOffset - tableOffset;
vdesc->Clear(vertex, varying, dstIndex);
vdesc->AddWithWeight(vertex, dstIndex, p, weight * wv);
for (int j = 0; j < n; ++j) {
vdesc->AddWithWeight(vertex, dstIndex, V_IT[h+j*2], weight * wp);
vdesc->AddWithWeight(vertex, dstIndex, V_IT[h+j*2+1], weight * wp);
}
vdesc->AddVaryingWithWeight(varying, dstIndex, p, 1.0f);
}
}
}
TBBVertexKernelB(TBBVertexKernelB const &other)
{
this->vdesc = other.vdesc;
this->vertex = other.vertex;
this->varying= other.varying;
this->V_ITa = other.V_ITa;
this->V_IT = other.V_IT;
this->V_W = other.V_W;
this->vertexOffset = other.vertexOffset;
this->tableOffset = other.tableOffset;
}
TBBVertexKernelB(OsdVertexDescriptor const *vdesc_in,
float *vertex_in,
float *varying_in,
int const *V_ITa_in,
int const *V_IT_in,
float const *V_W_in,
int vertexOffset_in,
int tableOffset_in) :
vdesc (vdesc_in),
vertex (vertex_in),
varying(varying_in),
V_ITa (V_ITa_in),
V_IT (V_IT_in),
V_W (V_W_in),
vertexOffset(vertexOffset_in),
tableOffset(tableOffset_in)
{};
};
void OsdTbbComputeVertexB(
OsdVertexDescriptor const &vdesc, float *vertex, float *varying,
int const *V_ITa, int const *V_IT, float const *V_W,
int vertexOffset, int tableOffset, int start, int end) {
tbb::blocked_range<int> range(start, end, grain_size);
TBBVertexKernelB kernel(&vdesc, vertex, varying, V_ITa, V_IT, V_W,
vertexOffset, tableOffset);
tbb::parallel_for(range, kernel);
}
class TBBLoopVertexKernelB {
OsdVertexDescriptor const *vdesc;
float *vertex;
float *varying;
int const *V_ITa;
int const *V_IT;
float const *V_W;
int vertexOffset;
int tableOffset;
public:
void operator() (tbb::blocked_range<int> const &r) const {
if(vdesc->numVertexElements == 4 && varying == NULL) {
ComputeLoopVertexBKernel<4>(vertex, V_ITa, V_IT, V_W, vertexOffset,
tableOffset, r.begin(), r.end());
}
else if(vdesc->numVertexElements == 8 && varying == NULL) {
ComputeLoopVertexBKernel<8>(vertex, V_ITa, V_IT, V_W, vertexOffset,
tableOffset, r.begin(), r.end());
}
else {
for (int i = r.begin() + tableOffset; i < r.end() + tableOffset; i++) {
int h = V_ITa[5*i];
int n = V_ITa[5*i+1];
int p = V_ITa[5*i+2];
float weight = V_W[i];
float wp = 1.0f/static_cast<float>(n);
float beta = 0.25f * cosf(static_cast<float>(M_PI) * 2.0f * wp) + 0.375f;
beta = beta * beta;
beta = (0.625f - beta) * wp;
int dstIndex = i + vertexOffset - tableOffset;
vdesc->Clear(vertex, varying, dstIndex);
vdesc->AddWithWeight(vertex, dstIndex, p, weight * (1.0f - (beta * n)));
for (int j = 0; j < n; ++j)
vdesc->AddWithWeight(vertex, dstIndex, V_IT[h+j], weight * beta);
vdesc->AddVaryingWithWeight(varying, dstIndex, p, 1.0f);
}
}
}
TBBLoopVertexKernelB(TBBLoopVertexKernelB const &other)
{
this->vdesc = other.vdesc;
this->vertex = other.vertex;
this->varying= other.varying;
this->V_ITa = other.V_ITa;
this->V_IT = other.V_IT;
this->V_W = other.V_W;
this->vertexOffset = other.vertexOffset;
this->tableOffset = other.tableOffset;
}
TBBLoopVertexKernelB(OsdVertexDescriptor const *vdesc_in,
float *vertex_in,
float *varying_in,
int const *V_ITa_in,
int const *V_IT_in,
float const *V_W_in,
int vertexOffset_in,
int tableOffset_in) :
vdesc (vdesc_in),
vertex (vertex_in),
varying(varying_in),
V_ITa (V_ITa_in),
V_IT (V_IT_in),
V_W (V_W_in),
vertexOffset(vertexOffset_in),
tableOffset(tableOffset_in)
{};
};
void OsdTbbComputeLoopVertexB(
OsdVertexDescriptor const &vdesc, float *vertex, float *varying,
int const *V_ITa, int const *V_IT, float const *V_W,
int vertexOffset, int tableOffset, int start, int end) {
tbb::blocked_range<int> range(start, end, grain_size);
TBBLoopVertexKernelB kernel(&vdesc, vertex, varying, V_ITa, V_IT, V_W,
vertexOffset, tableOffset);
tbb::parallel_for(range, kernel);
}
class TBBBilinearEdgeKernel {
OsdVertexDescriptor const *vdesc;
float *vertex;
float *varying;
int const *E_IT;
int vertexOffset;
int tableOffset;
public:
void operator() (tbb::blocked_range<int> const &r) const {
if(vdesc->numVertexElements == 4 && varying == NULL) {
ComputeBilinearEdgeKernel<4>(vertex, E_IT, vertexOffset, tableOffset,
r.begin(), r.end());
}
else if(vdesc->numVertexElements == 8 && varying == NULL) {
ComputeBilinearEdgeKernel<8>(vertex, E_IT, vertexOffset, tableOffset,
r.begin(), r.end());
}
else {
for (int i = r.begin() + tableOffset; i < r.end() + tableOffset; i++) {
int eidx0 = E_IT[2*i+0];
int eidx1 = E_IT[2*i+1];
int dstIndex = i + vertexOffset - tableOffset;
vdesc->Clear(vertex, varying, dstIndex);
vdesc->AddWithWeight(vertex, dstIndex, eidx0, 0.5f);
vdesc->AddWithWeight(vertex, dstIndex, eidx1, 0.5f);
vdesc->AddVaryingWithWeight(varying, dstIndex, eidx0, 0.5f);
vdesc->AddVaryingWithWeight(varying, dstIndex, eidx1, 0.5f);
}
}
}
TBBBilinearEdgeKernel(TBBBilinearEdgeKernel const &other)
{
this->vdesc = other.vdesc;
this->vertex = other.vertex;
this->varying= other.varying;
this->E_IT = other.E_IT;
this->vertexOffset = other.vertexOffset;
this->tableOffset = other.tableOffset;
}
TBBBilinearEdgeKernel(OsdVertexDescriptor const *vdesc_in,
float *vertex_in,
float *varying_in,
int const *E_IT_in,
int vertexOffset_in,
int tableOffset_in) :
vdesc (vdesc_in),
vertex (vertex_in),
varying(varying_in),
E_IT (E_IT_in),
vertexOffset(vertexOffset_in),
tableOffset(tableOffset_in)
{};
};
void OsdTbbComputeBilinearEdge(
OsdVertexDescriptor const &vdesc, float *vertex, float *varying,
int const *E_IT, int vertexOffset, int tableOffset, int start, int end) {
tbb::blocked_range<int> range(start, end, grain_size);
TBBBilinearEdgeKernel kernel(&vdesc, vertex, varying, E_IT, vertexOffset, tableOffset);
tbb::parallel_for(range, kernel);
}
class TBBBilinearVertexKernel {
OsdVertexDescriptor const *vdesc;
float *vertex;
float *varying;
int const *V_ITa;
int vertexOffset;
int tableOffset;
public:
void operator() (tbb::blocked_range<int> const &r) const {
int numVertexElements = vdesc->numVertexElements;
int numVaryingElements = vdesc->numVaryingElements;
float *src, *des;
for (int i = r.begin() + tableOffset; i < r.end() + tableOffset; i++) {
int p = V_ITa[i];
int dstIndex = i + vertexOffset - tableOffset;
src = vertex + p * numVertexElements;
des = vertex + dstIndex * numVertexElements;
memcpy(des, src, sizeof(float)*numVertexElements);
if(varying) {
src = varying + p * numVaryingElements;
des = varying + dstIndex * numVaryingElements;
memcpy(des, src, sizeof(float)*numVaryingElements);
}
}
}
TBBBilinearVertexKernel(TBBBilinearVertexKernel const &other)
{
this->vdesc = other.vdesc;
this->vertex = other.vertex;
this->varying= other.varying;
this->V_ITa = other.V_ITa;
this->vertexOffset = other.vertexOffset;
this->tableOffset = other.tableOffset;
}
TBBBilinearVertexKernel(OsdVertexDescriptor const *vdesc_in,
float *vertex_in,
float *varying_in,
int const *V_ITa_in,
int vertexOffset_in,
int tableOffset_in) :
vdesc (vdesc_in),
vertex (vertex_in),
varying(varying_in),
V_ITa (V_ITa_in),
vertexOffset(vertexOffset_in),
tableOffset(tableOffset_in)
{};
};
void OsdTbbComputeBilinearVertex(
OsdVertexDescriptor const &vdesc, float *vertex, float *varying,
int const *V_ITa, int vertexOffset, int tableOffset, int start, int end) {
tbb::blocked_range<int> range(start, end, grain_size);
TBBBilinearVertexKernel kernel(&vdesc, vertex, varying, V_ITa, vertexOffset, tableOffset);
tbb::parallel_for(range, kernel);
}
void OsdTbbEditVertexAdd(
OsdVertexDescriptor const &vdesc, float *vertex,
int primVarOffset, int primVarWidth, int vertexOffset, int tableOffset,
int start, int end,
unsigned int const *editIndices, float const *editValues) {
for (int i = start+tableOffset; i < end+tableOffset; i++) {
vdesc.ApplyVertexEditAdd(vertex,
primVarOffset,
primVarWidth,
editIndices[i] + vertexOffset,
&editValues[i*primVarWidth]);
}
}
void OsdTbbEditVertexSet(
OsdVertexDescriptor const &vdesc, float *vertex,
int primVarOffset, int primVarWidth, int vertexOffset, int tableOffset,
int start, int end,
unsigned int const *editIndices, float const *editValues) {
for (int i = start+tableOffset; i < end+tableOffset; i++) {
vdesc.ApplyVertexEditSet(vertex,
primVarOffset,
primVarWidth,
editIndices[i] + vertexOffset,
&editValues[i*primVarWidth]);
}
}
} // end namespace OPENSUBDIV_VERSION
} // end namespace OpenSubdiv
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