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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.
224 lines
8.2 KiB
C++
224 lines
8.2 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/gcdKernel.h"
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#include "../osd/cpuKernel.h"
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#include "../osd/vertexDescriptor.h"
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#include <math.h>
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namespace OpenSubdiv {
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namespace OPENSUBDIV_VERSION {
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const int GCD_WORK_STRIDE = 32;
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void OsdGcdComputeFace(
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OsdVertexDescriptor const &vdesc, float * vertex, float * varying,
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const int *F_IT, const int *F_ITa,
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int vertexOffset, int tableOffset, int start, int end,
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dispatch_queue_t gcdq) {
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const int workSize = end-start;
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dispatch_apply(workSize/GCD_WORK_STRIDE, gcdq, ^(size_t blockIdx){
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const int start_i = start + blockIdx*GCD_WORK_STRIDE;
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const int end_i = start_i + GCD_WORK_STRIDE;
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OsdCpuComputeFace(vdesc, vertex, varying, F_IT, F_ITa,
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vertexOffset, tableOffset, start_i, end_i);
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});
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const int start_e = end - workSize%GCD_WORK_STRIDE;
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const int end_e = end;
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if (start_e < end_e)
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OsdCpuComputeFace(vdesc, vertex, varying, F_IT, F_ITa,
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vertexOffset, tableOffset, start_e, end_e);
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}
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void OsdGcdComputeEdge(
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OsdVertexDescriptor const &vdesc, float * vertex, float * varying,
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const int *E_IT, const float *E_W,
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int vertexOffset, int tableOffset, int start, int end,
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dispatch_queue_t gcdq) {
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const int workSize = end-start;
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dispatch_apply(workSize/GCD_WORK_STRIDE, gcdq, ^(size_t blockIdx){
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const int start_i = start + blockIdx*GCD_WORK_STRIDE;
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const int end_i = start_i + GCD_WORK_STRIDE;
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OsdCpuComputeEdge(vdesc, vertex, varying, E_IT, E_W,
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vertexOffset, tableOffset, start_i, end_i);
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});
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const int start_e = end - workSize%GCD_WORK_STRIDE;
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const int end_e = end;
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if (start_e < end_e)
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OsdCpuComputeEdge(vdesc, vertex, varying, E_IT, E_W,
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vertexOffset, tableOffset, start_e, end_e);
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}
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void OsdGcdComputeVertexA(
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OsdVertexDescriptor const &vdesc, float * vertex, float * varying,
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const int *V_ITa, const float *V_W,
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int vertexOffset, int tableOffset, int start, int end, int pass,
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dispatch_queue_t gcdq) {
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const int workSize = end-start;
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dispatch_apply(workSize/GCD_WORK_STRIDE, gcdq, ^(size_t blockIdx){
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const int start_i = start + blockIdx*GCD_WORK_STRIDE;
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const int end_i = start_i + GCD_WORK_STRIDE;
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OsdCpuComputeVertexA(vdesc, vertex, varying, V_ITa, V_W,
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vertexOffset, tableOffset, start_i, end_i, pass);
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});
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const int start_e = end - workSize%GCD_WORK_STRIDE;
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const int end_e = end;
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if (start_e < end_e)
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OsdCpuComputeVertexA(vdesc, vertex, varying, V_ITa, V_W,
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vertexOffset, tableOffset, start_e, end_e, pass);
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}
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void OsdGcdComputeVertexB(
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OsdVertexDescriptor const &vdesc, float * vertex, float * varying,
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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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dispatch_queue_t gcdq) {
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const int workSize = end-start;
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dispatch_apply(workSize/GCD_WORK_STRIDE, gcdq, ^(size_t blockIdx){
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const int start_i = start + blockIdx*GCD_WORK_STRIDE;
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const int end_i = start_i + GCD_WORK_STRIDE;
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OsdCpuComputeVertexB(vdesc, vertex, varying, V_ITa, V_IT, V_W,
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vertexOffset, tableOffset, start_i, end_i);
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});
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const int start_e = end - workSize%GCD_WORK_STRIDE;
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const int end_e = end;
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if (start_e < end_e)
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OsdCpuComputeVertexB(vdesc, vertex, varying, V_ITa, V_IT, V_W,
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vertexOffset, tableOffset, start_e, end_e);
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}
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void OsdGcdComputeLoopVertexB(
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OsdVertexDescriptor const &vdesc, float * vertex, float * varying,
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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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dispatch_queue_t gcdq) {
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dispatch_apply(end-start, gcdq, ^(size_t blockIdx){
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int i = start+blockIdx+tableOffset;
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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 = vertexOffset + i - tableOffset;
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vdesc.Clear(vertex, varying, dstIndex);
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vdesc.AddWithWeight(vertex, dstIndex, p, weight * (1.0f - (beta * n)));
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for (int j = 0; j < n; ++j)
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vdesc.AddWithWeight(vertex, dstIndex, V_IT[h+j], weight * beta);
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vdesc.AddVaryingWithWeight(varying, dstIndex, p, 1.0f);
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});
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}
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void OsdGcdComputeBilinearEdge(
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OsdVertexDescriptor const &vdesc, float * vertex, float * varying,
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const int *E_IT,
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int vertexOffset, int tableOffset, int start, int end,
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dispatch_queue_t gcdq) {
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dispatch_apply(end-start, gcdq, ^(size_t blockIdx){
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int i = start+blockIdx+tableOffset;
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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 = vertexOffset + i - tableOffset;
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vdesc.Clear(vertex, varying, dstIndex);
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vdesc.AddWithWeight(vertex, dstIndex, eidx0, 0.5f);
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vdesc.AddWithWeight(vertex, dstIndex, eidx1, 0.5f);
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vdesc.AddVaryingWithWeight(varying, dstIndex, eidx0, 0.5f);
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vdesc.AddVaryingWithWeight(varying, dstIndex, eidx1, 0.5f);
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});
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}
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void OsdGcdComputeBilinearVertex(
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OsdVertexDescriptor const &vdesc, float * vertex, float * varying,
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const int *V_ITa,
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int vertexOffset, int tableOffset, int start, int end,
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dispatch_queue_t gcdq) {
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dispatch_apply(end-start, gcdq, ^(size_t blockIdx){
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int i = start+blockIdx+tableOffset;
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int p = V_ITa[i];
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int dstIndex = vertexOffset + i - tableOffset;
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vdesc.Clear(vertex, varying, dstIndex);
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vdesc.AddWithWeight(vertex, dstIndex, p, 1.0f);
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vdesc.AddVaryingWithWeight(varying, dstIndex, p, 1.0f);
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});
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}
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void OsdGcdEditVertexAdd(
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OsdVertexDescriptor const &vdesc, float * vertex,
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int primVarOffset, int primVarWidth,
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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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dispatch_queue_t gcdq) {
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int vertexCount = end - start;
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dispatch_apply(vertexCount, gcdq, ^(size_t blockIdx){
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int i = start + blockIdx + tableOffset;
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vdesc.ApplyVertexEditAdd(vertex, primVarOffset, primVarWidth,
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editIndices[i] + vertexOffset,
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&editValues[i*primVarWidth]);
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});
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}
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void OsdGcdEditVertexSet(
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OsdVertexDescriptor const &vdesc, float * vertex,
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int primVarOffset, int primVarWidth,
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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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dispatch_queue_t gcdq) {
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int vertexCount = end - start;
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dispatch_apply(vertexCount, gcdq, ^(size_t blockIdx){
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int i = start + blockIdx + tableOffset;
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vdesc.ApplyVertexEditSet(vertex, primVarOffset, primVarWidth,
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editIndices[i] + vertexOffset,
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&editValues[i*primVarWidth]);
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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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