mirror of
https://github.com/PixarAnimationStudios/OpenSubdiv
synced 2024-11-27 05:50:05 +00:00
b74f45f68d
- turn off some of icc's remarks (mostly because of tbb) - fix many of icc -w3 remarks (more to fix once i can work around icc 14.0 linker barfing)
416 lines
15 KiB
C++
416 lines
15 KiB
C++
//
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// Copyright 2013 Pixar
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//
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// Licensed under the Apache License, Version 2.0 (the "Apache License")
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// with the following modification; you may not use this file except in
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// compliance with the Apache License and the following modification to it:
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// Section 6. Trademarks. is deleted and replaced with:
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//
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// 6. Trademarks. This License does not grant permission to use the trade
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// names, trademarks, service marks, or product names of the Licensor
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// and its affiliates, except as required to comply with Section 4(c) of
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// the License and to reproduce the content of the NOTICE file.
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//
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// You may obtain a copy of the Apache License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the Apache License with the above modification is
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// distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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// KIND, either express or implied. See the Apache License for the specific
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// language governing permissions and limitations under the Apache License.
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//
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#include "../osd/ompKernel.h"
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#include "../osd/vertexDescriptor.h"
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#include <algorithm>
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#include <cmath>
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#include <cstdlib>
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#include <omp.h>
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namespace OpenSubdiv {
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namespace OPENSUBDIV_VERSION {
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static inline void
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clear(float *dst, OsdVertexBufferDescriptor const &desc) {
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if (dst) {
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memset(dst, 0, desc.length*sizeof(float));
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}
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}
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static inline void
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addWithWeight(float *dst, const float *srcOrigin, int srcIndex, float weight,
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OsdVertexBufferDescriptor const &desc) {
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if (srcOrigin && dst) {
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const float *src = srcOrigin + srcIndex * desc.stride;
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for (int k = 0; k < desc.length; ++k) {
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dst[k] += src[k] * weight;
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}
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}
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}
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static inline void
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copy(float *dstOrigin, const float *src, int dstIndex,
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OsdVertexBufferDescriptor const &desc) {
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if (dstOrigin && src) {
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float *dst = dstOrigin + dstIndex * desc.stride;
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memcpy(dst, src, desc.length*sizeof(float));
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}
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}
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void OsdOmpComputeFace(
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float * vertex, float * varying,
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OsdVertexBufferDescriptor const &vertexDesc,
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OsdVertexBufferDescriptor const &varyingDesc,
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const int *F_IT, const int *F_ITa, int offset, int tableOffset, int start, int end) {
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int numThreads = omp_get_max_threads();
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float *vertexResultsArray = (float*)alloca(vertexDesc.length * sizeof(float) * numThreads);
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float *varyingResultsArray = (float*)alloca(varyingDesc.length * sizeof(float) * numThreads);
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#pragma omp parallel for
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for (int i = start + tableOffset; i < end + tableOffset; i++) {
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int h = F_ITa[2*i];
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int n = F_ITa[2*i+1];
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float weight = 1.0f/n;
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int dstIndex = offset + i - tableOffset;
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int threadId = omp_get_thread_num();
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float *vertexResults = vertexResultsArray +
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vertexDesc.length * threadId;
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float *varyingResults = varyingResultsArray +
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varyingDesc.length * threadId;
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// clear
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clear(vertexResults, vertexDesc);
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clear(varyingResults, varyingDesc);
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for (int j = 0; j < n; ++j) {
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int index = F_IT[h+j];
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addWithWeight(vertexResults, vertex, index, weight, vertexDesc);
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addWithWeight(varyingResults, varying, index, weight, varyingDesc);
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}
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// write results
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copy(vertex, vertexResults, dstIndex, vertexDesc);
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copy(varying, varyingResults, dstIndex, varyingDesc);
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}
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}
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void OsdOmpComputeEdge(
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float * vertex, float * varying,
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OsdVertexBufferDescriptor const &vertexDesc,
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OsdVertexBufferDescriptor const &varyingDesc,
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const int *E_IT, const float *E_W, int offset, int tableOffset, int start, int end) {
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int numThreads = omp_get_max_threads();
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float *vertexResultsArray = (float*)alloca(vertexDesc.length * sizeof(float) * numThreads);
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float *varyingResultsArray = (float*)alloca(varyingDesc.length * sizeof(float) * numThreads);
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#pragma omp parallel for
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for (int i = start + tableOffset; i < end + tableOffset; i++) {
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int eidx0 = E_IT[4*i+0];
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int eidx1 = E_IT[4*i+1];
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int eidx2 = E_IT[4*i+2];
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int eidx3 = E_IT[4*i+3];
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float vertWeight = E_W[i*2+0];
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int dstIndex = offset + i - tableOffset;
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int threadId = omp_get_thread_num();
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float *vertexResults = vertexResultsArray +
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vertexDesc.length * threadId;
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float *varyingResults = varyingResultsArray +
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varyingDesc.length * threadId;
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// clear
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clear(vertexResults, vertexDesc);
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clear(varyingResults, varyingDesc);
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addWithWeight(vertexResults, vertex, eidx0, vertWeight, vertexDesc);
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addWithWeight(vertexResults, vertex, eidx1, vertWeight, vertexDesc);
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if (eidx2 != -1) {
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float faceWeight = E_W[i*2+1];
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addWithWeight(vertexResults, vertex, eidx2, faceWeight, vertexDesc);
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addWithWeight(vertexResults, vertex, eidx3, faceWeight, vertexDesc);
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}
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addWithWeight(varyingResults, varying, eidx0, 0.5f, varyingDesc);
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addWithWeight(varyingResults, varying, eidx1, 0.5f, varyingDesc);
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copy(vertex, vertexResults, dstIndex, vertexDesc);
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copy(varying, varyingResults, dstIndex, varyingDesc);
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}
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}
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void OsdOmpComputeVertexA(
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float * vertex, float * varying,
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OsdVertexBufferDescriptor const &vertexDesc,
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OsdVertexBufferDescriptor const &varyingDesc,
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const int *V_ITa, const float *V_W,
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int offset, int tableOffset, int start, int end, int pass) {
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int numThreads = omp_get_max_threads();
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float *vertexResultsArray = (float*)alloca(vertexDesc.length * sizeof(float) * numThreads);
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float *varyingResultsArray = (float*)alloca(varyingDesc.length * sizeof(float) * numThreads);
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#pragma omp parallel for
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for (int i = start + tableOffset; i < end + tableOffset; i++) {
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int n = V_ITa[5*i+1];
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int p = V_ITa[5*i+2];
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int eidx0 = V_ITa[5*i+3];
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int eidx1 = V_ITa[5*i+4];
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float weight = (pass == 1) ? V_W[i] : 1.0f - V_W[i];
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// In the case of fractional weight, the weight must be inverted since
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// the value is shared with the k_Smooth kernel (statistically the
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// k_Smooth kernel runs much more often than this one)
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if (weight > 0.0f && weight < 1.0f && n > 0)
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weight = 1.0f - weight;
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int dstIndex = offset + i - tableOffset;
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int threadId = omp_get_thread_num();
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float *vertexResults = vertexResultsArray +
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vertexDesc.length * threadId;
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float *varyingResults = varyingResultsArray +
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varyingDesc.length * threadId;
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clear(vertexResults, vertexDesc);
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clear(varyingResults, varyingDesc);
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if (pass) {
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// copy previous results
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addWithWeight(vertexResults, vertex, dstIndex, 1.0f, vertexDesc);
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}
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if (eidx0 == -1 || (pass == 0 && (n == -1))) {
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addWithWeight(vertexResults, vertex, p, weight, vertexDesc);
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} else {
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addWithWeight(vertexResults, vertex, p, weight * 0.75f, vertexDesc);
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addWithWeight(vertexResults, vertex, eidx0, weight * 0.125f, vertexDesc);
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addWithWeight(vertexResults, vertex, eidx1, weight * 0.125f, vertexDesc);
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}
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copy(vertex, vertexResults, dstIndex, vertexDesc);
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if (not pass) {
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addWithWeight(varyingResults, varying, p, 1.0f, varyingDesc);
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copy(varying, varyingResults, dstIndex, varyingDesc);
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}
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}
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}
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void OsdOmpComputeVertexB(
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float * vertex, float * varying,
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OsdVertexBufferDescriptor const &vertexDesc,
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OsdVertexBufferDescriptor const &varyingDesc,
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const int *V_ITa, const int *V_IT, const float *V_W,
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int offset, int tableOffset, int start, int end) {
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int numThreads = omp_get_max_threads();
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float *vertexResultsArray = (float*)alloca(vertexDesc.length * sizeof(float) * numThreads);
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float *varyingResultsArray = (float*)alloca(varyingDesc.length * sizeof(float) * numThreads);
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#pragma omp parallel for
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for (int i = start + tableOffset; i < end + tableOffset; i++) {
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int h = V_ITa[5*i];
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int n = V_ITa[5*i+1];
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int p = V_ITa[5*i+2];
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float weight = V_W[i];
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float wp = 1.0f/static_cast<float>(n*n);
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float wv = (n-2.0f) * n * wp;
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int dstIndex = offset + i - tableOffset;
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int threadId = omp_get_thread_num();
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float *vertexResults = vertexResultsArray +
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vertexDesc.length * threadId;
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float *varyingResults = varyingResultsArray +
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varyingDesc.length * threadId;
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clear(vertexResults, vertexDesc);
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clear(varyingResults, varyingDesc);
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addWithWeight(vertexResults, vertex, p, weight * wv, vertexDesc);
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for (int j = 0; j < n; ++j) {
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addWithWeight(vertexResults, vertex, V_IT[h+j*2], weight * wp, vertexDesc);
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addWithWeight(vertexResults, vertex, V_IT[h+j*2+1], weight * wp, vertexDesc);
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}
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addWithWeight(varyingResults, varying, p, 1.0f, varyingDesc);
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copy(vertex, vertexResults, dstIndex, vertexDesc);
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copy(varying, varyingResults, dstIndex, varyingDesc);
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}
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}
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void OsdOmpComputeLoopVertexB(
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float * vertex, float * varying,
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OsdVertexBufferDescriptor const &vertexDesc,
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OsdVertexBufferDescriptor const &varyingDesc,
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const int *V_ITa, const int *V_IT, const float *V_W,
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int vertexOffset, int tableOffset, int start, int end) {
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int numThreads = omp_get_max_threads();
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float *vertexResultsArray = (float*)alloca(vertexDesc.length * sizeof(float) * numThreads);
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float *varyingResultsArray = (float*)alloca(varyingDesc.length * sizeof(float) * numThreads);
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#pragma omp parallel for
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for (int i = start + tableOffset; i < end + tableOffset; i++) {
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int h = V_ITa[5*i];
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int n = V_ITa[5*i+1];
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int p = V_ITa[5*i+2];
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float weight = V_W[i];
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float wp = 1.0f/static_cast<float>(n);
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float beta = 0.25f * cosf(static_cast<float>(M_PI) * 2.0f * wp) + 0.375f;
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beta = beta * beta;
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beta = (0.625f - beta) * wp;
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int dstIndex = i + vertexOffset - tableOffset;
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int threadId = omp_get_thread_num();
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float *vertexResults = vertexResultsArray +
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vertexDesc.length * threadId;
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float *varyingResults = varyingResultsArray +
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varyingDesc.length * threadId;
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clear(vertexResults, vertexDesc);
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clear(varyingResults, varyingDesc);
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addWithWeight(vertexResults, vertex, p, weight * (1.0f - (beta * n)), vertexDesc);
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for (int j = 0; j < n; ++j)
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addWithWeight(vertexResults, vertex, V_IT[h+j], weight * beta, vertexDesc);
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addWithWeight(varyingResults, varying, p, 1.0f, varyingDesc);
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copy(vertex, vertexResults, dstIndex, vertexDesc);
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copy(varying, varyingResults, dstIndex, varyingDesc);
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}
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}
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void OsdOmpComputeBilinearEdge(
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float * vertex, float * varying,
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OsdVertexBufferDescriptor const &vertexDesc,
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OsdVertexBufferDescriptor const &varyingDesc,
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const int *E_IT, int vertexOffset, int tableOffset, int start, int end) {
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int numThreads = omp_get_max_threads();
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float *vertexResultsArray = (float*)alloca(vertexDesc.length * sizeof(float) * numThreads);
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float *varyingResultsArray = (float*)alloca(varyingDesc.length * sizeof(float) * numThreads);
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#pragma omp parallel for
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for (int i = start + tableOffset; i < end + tableOffset; i++) {
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int eidx0 = E_IT[2*i+0];
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int eidx1 = E_IT[2*i+1];
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int dstIndex = i + vertexOffset - tableOffset;
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int threadId = omp_get_thread_num();
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float *vertexResults = vertexResultsArray +
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vertexDesc.length * threadId;
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float *varyingResults = varyingResultsArray +
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varyingDesc.length * threadId;
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clear(vertexResults, vertexDesc);
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clear(varyingResults, varyingDesc);
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addWithWeight(vertexResults, vertex, eidx0, 0.5f, vertexDesc);
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addWithWeight(vertexResults, vertex, eidx1, 0.5f, vertexDesc);
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addWithWeight(varyingResults, varying, eidx0, 0.5f, varyingDesc);
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addWithWeight(varyingResults, varying, eidx1, 0.5f, varyingDesc);
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copy(vertex, vertexResults, dstIndex, vertexDesc);
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copy(varying, varyingResults, dstIndex, varyingDesc);
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}
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}
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void OsdOmpComputeBilinearVertex(
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float * vertex, float * varying,
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OsdVertexBufferDescriptor const &vertexDesc,
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OsdVertexBufferDescriptor const &varyingDesc,
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const int *V_ITa, int vertexOffset, int tableOffset, int start, int end) {
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int numThreads = omp_get_max_threads();
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float *vertexResultsArray = (float*)alloca(vertexDesc.length * sizeof(float) * numThreads);
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float *varyingResultsArray = (float*)alloca(varyingDesc.length * sizeof(float) * numThreads);
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#pragma omp parallel for
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for (int i = start + tableOffset; i < end + tableOffset; i++) {
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int p = V_ITa[i];
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int dstIndex = i + vertexOffset - tableOffset;
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int threadId = omp_get_thread_num();
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float *vertexResults = vertexResultsArray +
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vertexDesc.length * threadId;
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float *varyingResults = varyingResultsArray +
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varyingDesc.length * threadId;
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clear(vertexResults, vertexDesc);
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clear(varyingResults, varyingDesc);
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addWithWeight(vertexResults, vertex, p, 1.0f, vertexDesc);
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addWithWeight(varyingResults, varying, p, 1.0f, varyingDesc);
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copy(vertex, vertexResults, dstIndex, vertexDesc);
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copy(varying, varyingResults, dstIndex, varyingDesc);
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}
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}
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void OsdOmpEditVertexAdd(
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float * vertex,
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OsdVertexBufferDescriptor const &vertexDesc,
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int primVarOffset, int primVarWidth, int vertexOffset, int tableOffset,
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int start, int end,
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const unsigned int *editIndices, const float *editValues) {
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#pragma omp parallel for
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for (int i = start+tableOffset; i < end+tableOffset; i++) {
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if (vertex) {
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int editIndex = editIndices[i] + vertexOffset;
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float *dst = vertex + editIndex * vertexDesc.stride + primVarOffset;
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for (int j = 0; j < primVarWidth; ++j) {
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dst[j] += editValues[j];
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}
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}
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}
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}
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void OsdOmpEditVertexSet(
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float * vertex,
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OsdVertexBufferDescriptor const &vertexDesc,
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int primVarOffset, int primVarWidth, int vertexOffset, int tableOffset,
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int start, int end,
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const unsigned int *editIndices, const float *editValues) {
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#pragma omp parallel for
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for (int i = start+tableOffset; i < end+tableOffset; i++) {
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if (vertex) {
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int editIndex = editIndices[i] + vertexOffset;
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float *dst = vertex + editIndex * vertexDesc.stride + primVarOffset;
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for (int j = 0; j < primVarWidth; ++j) {
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dst[j] = editValues[j];
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}
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}
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}
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}
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} // end namespace OPENSUBDIV_VERSION
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} // end namespace OpenSubdiv
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