mirror of
https://github.com/PixarAnimationStudios/OpenSubdiv
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064115bbe8
* The CATMARK_QUAD_FACE_VERTEX kernel calculates the face-vertex for a quadrilateral face. It applies to every face after the first subdivision step, and may be applied for the first subdivision step of a quadrilateral coarse mesh. * The CATMARK_TRI_QUAD_FACE_VERTEX kernel calculates the face-vertex for a triangle or quadrilateral face. It may be applied for the first subdivision step of a coarse mesh composed of triangles and/or quadrilaterals. * Both kernels calculate each face-vertex using four vertex indices (triangles are specified by repeating the third index). Therefore neither kernel uses the F_ITa codex table, and instead the first vertex offset in the F_IT index table is stored in the FarKernelBatch's table offset.
330 lines
12 KiB
C++
330 lines
12 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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static inline void
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clear(float *origin, int index, OsdVertexBufferDescriptor const &desc) {
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if (origin) {
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float *dst = origin + index * desc.stride + desc.offset;
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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 *origin, int dstIndex, int srcIndex,
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float weight, OsdVertexBufferDescriptor const &desc) {
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if (origin) {
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const float *src = origin + srcIndex * desc.stride + desc.offset;
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float *dst = origin + dstIndex * desc.stride + desc.offset;
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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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void OsdGcdComputeFace(
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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,
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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(vertex, varying, vertexDesc, varyingDesc,
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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(vertex, varying, vertexDesc, varyingDesc,
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F_IT, F_ITa,
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vertexOffset, tableOffset, start_e, end_e);
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}
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void OsdGcdComputeQuadFace(
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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,
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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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OsdCpuComputeQuadFace(vertex, varying, vertexDesc, varyingDesc,
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F_IT,
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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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OsdCpuComputeQuadFace(vertex, varying, vertexDesc, varyingDesc,
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F_IT,
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vertexOffset, tableOffset, start_e, end_e);
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}
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void OsdGcdComputeTriQuadFace(
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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,
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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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OsdCpuComputeTriQuadFace(vertex, varying, vertexDesc, varyingDesc,
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F_IT,
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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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OsdCpuComputeTriQuadFace(vertex, varying, vertexDesc, varyingDesc,
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F_IT,
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vertexOffset, tableOffset, start_e, end_e);
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}
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void OsdGcdComputeEdge(
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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,
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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(vertex, varying, vertexDesc, varyingDesc,
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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(vertex, varying, vertexDesc, varyingDesc,
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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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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 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(vertex, varying, vertexDesc, varyingDesc,
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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(vertex, varying, vertexDesc, varyingDesc,
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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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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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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(vertex, varying, vertexDesc, varyingDesc,
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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(vertex, varying, vertexDesc, varyingDesc,
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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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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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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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clear(vertex, dstIndex, vertexDesc);
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clear(varying, dstIndex, varyingDesc);
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addWithWeight(vertex, dstIndex, p, weight * (1.0f - (beta * n)), vertexDesc);
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for (int j = 0; j < n; ++j)
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addWithWeight(vertex, dstIndex, V_IT[h+j], weight * beta, vertexDesc);
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addWithWeight(varying, dstIndex, p, 1.0f, varyingDesc);
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});
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}
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void OsdGcdComputeBilinearEdge(
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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,
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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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clear(vertex, dstIndex, vertexDesc);
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clear(varying, dstIndex, varyingDesc);
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addWithWeight(vertex, dstIndex, eidx0, 0.5f, vertexDesc);
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addWithWeight(vertex, dstIndex, eidx1, 0.5f, vertexDesc);
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addWithWeight(varying, dstIndex, eidx0, 0.5f, varyingDesc);
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addWithWeight(varying, dstIndex, eidx1, 0.5f, varyingDesc);
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});
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}
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void OsdGcdComputeBilinearVertex(
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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,
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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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clear(vertex, dstIndex, vertexDesc);
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clear(varying, dstIndex, varyingDesc);
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addWithWeight(vertex, dstIndex, p, 1.0f, vertexDesc);
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addWithWeight(varying, dstIndex, p, 1.0f, varyingDesc);
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});
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}
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void OsdGcdEditVertexAdd(
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float * vertex,
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OsdVertexBufferDescriptor const &vertexDesc,
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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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if (vertex) {
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int editIndex = editIndices[i] + vertexOffset;
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float *dst = vertex + editIndex * vertexDesc.stride
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+ vertexDesc.offset + primVarOffset;
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dst[i] += editValues[i];
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}
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});
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}
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void OsdGcdEditVertexSet(
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float * vertex,
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OsdVertexBufferDescriptor const &vertexDesc,
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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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if (vertex) {
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int editIndex = editIndices[i] + vertexOffset;
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float *dst = vertex + editIndex * vertexDesc.stride
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+ vertexDesc.offset + primVarOffset;
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dst[i] = editValues[i];
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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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