mirror of
https://github.com/PixarAnimationStudios/OpenSubdiv
synced 2025-01-09 00:00:18 +00:00
8efecb0fca
2 client APIs are changed. - VertexBuffer::UpdateData() takes start vertex offset - ComputeController::Refine() takes FarKernelBatchVector Also, ComputeContext no longer holds farmesh. Client can free farmesh after OsdComputeContext is created. (but still need FarKernelBatchVector to apply subdivision kernels)
203 lines
8.2 KiB
C++
203 lines
8.2 KiB
C++
//
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// Copyright (C) Pixar. All rights reserved.
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//
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// This license governs use of the accompanying software. If you
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// use the software, you accept this license. If you do not accept
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// the license, do not use the software.
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//
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// 1. Definitions
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// The terms "reproduce," "reproduction," "derivative works," and
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// "distribution" have the same meaning here as under U.S.
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// copyright law. A "contribution" is the original software, or
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// any additions or changes to the software.
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// A "contributor" is any person or entity that distributes its
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// contribution under this license.
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// "Licensed patents" are a contributor's patent claims that read
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// directly on its contribution.
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//
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// 2. Grant of Rights
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// (A) Copyright Grant- Subject to the terms of this license,
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// including the license conditions and limitations in section 3,
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// each contributor grants you a non-exclusive, worldwide,
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// royalty-free copyright license to reproduce its contribution,
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// prepare derivative works of its contribution, and distribute
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// its contribution or any derivative works that you create.
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// (B) Patent Grant- Subject to the terms of this license,
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// including the license conditions and limitations in section 3,
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// each contributor grants you a non-exclusive, worldwide,
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// royalty-free license under its licensed patents to make, have
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// made, use, sell, offer for sale, import, and/or otherwise
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// dispose of its contribution in the software or derivative works
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// of the contribution in the software.
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//
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// 3. Conditions and Limitations
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// (A) No Trademark License- This license does not grant you
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// rights to use any contributor's name, logo, or trademarks.
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// (B) If you bring a patent claim against any contributor over
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// patents that you claim are infringed by the software, your
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// patent license from such contributor to the software ends
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// automatically.
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// (C) If you distribute any portion of the software, you must
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// retain all copyright, patent, trademark, and attribution
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// notices that are present in the software.
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// (D) If you distribute any portion of the software in source
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// code form, you may do so only under this license by including a
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// complete copy of this license with your distribution. If you
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// distribute any portion of the software in compiled or object
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// code form, you may only do so under a license that complies
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// with this license.
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// (E) The software is licensed "as-is." You bear the risk of
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// using it. The contributors give no express warranties,
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// guarantees or conditions. You may have additional consumer
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// rights under your local laws which this license cannot change.
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// To the extent permitted under your local laws, the contributors
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// exclude the implied warranties of merchantability, fitness for
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// a particular purpose and non-infringement.
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//
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#ifndef FAR_KERNEL_BATCH_H
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#define FAR_KERNEL_BATCH_H
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#include "../version.h"
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#include <vector>
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namespace OpenSubdiv {
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namespace OPENSUBDIV_VERSION {
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enum KernelType {
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CATMARK_FACE_VERTEX,
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CATMARK_EDGE_VERTEX,
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CATMARK_VERT_VERTEX_A1,
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CATMARK_VERT_VERTEX_A2,
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CATMARK_VERT_VERTEX_B,
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LOOP_EDGE_VERTEX,
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LOOP_VERT_VERTEX_A1,
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LOOP_VERT_VERTEX_A2,
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LOOP_VERT_VERTEX_B,
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BILINEAR_FACE_VERTEX,
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BILINEAR_EDGE_VERTEX,
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BILINEAR_VERT_VERTEX,
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HIERARCHICAL_EDIT,
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};
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struct FarKernelBatch {
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FarKernelBatch(int level_,
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int kernelType_,
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int tableIndex_,
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int start_,
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int end_,
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int tableOffset_,
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int vertexOffset_) :
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level(level_),
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kernelType(kernelType_),
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tableIndex(tableIndex_),
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start(start_),
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end(end_),
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tableOffset(tableOffset_),
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vertexOffset(vertexOffset_) {
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}
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/*
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[Subdivision table for kernel k]
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------+---------------------------------+-----
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| Prim p, Level n |
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------+---------------------------------+-----
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| |<batch range>| |
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------+---------------------------------+-----
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^ ^ ^
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tableOffset start end
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. .
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. .
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. .
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[VBO] . .
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------+---------------------------------+-----
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| Prim p, Kernel k, Level n |
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------+---------------------------------+-----
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| |<batch range>| |
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------+---------------------------------+-----
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^ ^ ^
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vertexOffset start end
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*/
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int level;
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int kernelType;
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int tableIndex; // edit index (for the h-edit kernel only)
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int start;
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int end;
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int tableOffset;
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int vertexOffset;
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};
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typedef std::vector<FarKernelBatch> FarKernelBatchVector;
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struct FarVertexKernelBatchFactory {
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FarVertexKernelBatchFactory(int a, int b) {
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kernelB.first = kernelA1.first = kernelA2.first = a;
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kernelB.second = kernelA1.second = kernelA2.second = b;
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}
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void AddVertex( int index, int rank ) {
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// expand the range of kernel batches based on vertex index and rank
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if (rank<7) {
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if (index < kernelB.first)
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kernelB.first=index;
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if (index > kernelB.second)
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kernelB.second=index;
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}
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if ((rank>2) and (rank<8)) {
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if (index < kernelA2.first)
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kernelA2.first=index;
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if (index > kernelA2.second)
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kernelA2.second=index;
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}
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if (rank>6) {
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if (index < kernelA1.first)
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kernelA1.first=index;
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if (index > kernelA1.second)
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kernelA1.second=index;
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}
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}
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void AppendCatmarkBatches(FarKernelBatchVector *result, int level, int tableOffset, int vertexOffset) {
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if (kernelB.second >= kernelB.first)
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result->push_back(FarKernelBatch(level, CATMARK_VERT_VERTEX_B, 0,
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kernelB.first, kernelB.second+1,
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tableOffset, vertexOffset));
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if (kernelA1.second >= kernelA1.first)
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result->push_back(FarKernelBatch(level, CATMARK_VERT_VERTEX_A1, 0,
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kernelA1.first, kernelA1.second+1,
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tableOffset, vertexOffset));
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if (kernelA2.second >= kernelA2.first)
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result->push_back(FarKernelBatch(level, CATMARK_VERT_VERTEX_A2, 0,
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kernelA2.first, kernelA2.second+1,
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tableOffset, vertexOffset));
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}
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void AppendLoopBatches(FarKernelBatchVector *result, int level, int tableOffset, int vertexOffset) {
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if (kernelB.second >= kernelB.first)
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result->push_back(FarKernelBatch(level, LOOP_VERT_VERTEX_B, 0,
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kernelB.first, kernelB.second+1,
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tableOffset, vertexOffset));
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if (kernelA1.second >= kernelA1.first)
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result->push_back(FarKernelBatch(level, LOOP_VERT_VERTEX_A1, 0,
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kernelA1.first, kernelA1.second+1,
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tableOffset, vertexOffset));
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if (kernelA2.second >= kernelA2.first)
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result->push_back(FarKernelBatch(level, LOOP_VERT_VERTEX_A2, 0,
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kernelA2.first, kernelA2.second+1,
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tableOffset, vertexOffset));
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}
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std::pair<int,int> kernelB; // first / last vertex vertex batch (kernel B)
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std::pair<int,int> kernelA1; // first / last vertex vertex batch (kernel A pass 1)
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std::pair<int,int> kernelA2; // first / last vertex vertex batch (kernel A pass 2)
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};
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} // end namespace OPENSUBDIV_VERSION
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using namespace OPENSUBDIV_VERSION;
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} // end namespace OpenSubdiv
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#endif /* FAR_KERNEL_BATCH_H */
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