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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.
208 lines
8.2 KiB
C++
208 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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#ifndef FAR_KERNEL_BATCH_FACTORY_H
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#define FAR_KERNEL_BATCH_FACTORY_H
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#include "../version.h"
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#include "../far/kernelBatch.h"
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namespace OpenSubdiv {
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namespace OPENSUBDIV_VERSION {
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class FarVertexKernelBatchFactory {
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public:
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/// \brief Constructor.
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///
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/// @param start index of the first vertex in the batch
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///
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/// @param end index of the last vertex in the batch
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///
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FarVertexKernelBatchFactory(int start, int end) {
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kernelB.start = kernelA1.start = kernelA2.start = start;
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kernelB.end = kernelA1.end = kernelA2.end = end;
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}
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/// \brief Adds a vertex-vertex to the appropriate compute batch based on "Rank".
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///
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/// Ranking is based on the interpolation required (Smooth, Dart, Crease,
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/// or Corner). With semi-sharp creases, two passes of interpolation are
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/// required, from which we derive a matrix of compute kernel combinations.
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///
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/// The kernel combinatorial matrix :
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///
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#ifndef doxygen
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/// Rules +----+----+----+----+----+----+----+----+----+----+
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/// Pass 0 | Dt | Sm | Sm | Dt | Sm | Dt | Sm | Cr | Co | Cr |
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/// Pass 1 | | | | Co | Co | Cr | Cr | Co | | |
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/// Kernel +----+----+----+----+----+----+----+----+----+----+
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/// Pass 0 | B | B | B | B | B | B | B | A | A | A |
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/// Pass 1 | | | | A | A | A | A | A | | |
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/// +----+----+----+----+----+----+----+----+----+----+
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/// Rank | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
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/// +----+----+----+----+----+----+----+----+----+----+
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#else
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/// <table class="doxtable">
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/// <tr> <th colspan="11" align="left">Rules</th></tr>
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/// <tr align="center"> <td>Pass 0</td> <td>Dart</td> <td>Smooth</td>
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/// <td>Smooth</td> <td>Dart </td> <td>Smooth</td> <td>Dart </td>
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/// <td>Smooth</td> <td>Crease</td> <td>Corner</td> <td>Crease</td> </tr>
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/// <tr align="center"> <td>Pass 1</td> <td> </td> <td> </td>
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/// <td> </td> <td>Corner</td> <td>Corner</td> <td>Crease</td>
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/// <td>Crease</td> <td>Corner</td> <td> </td> <td> </td> </tr>
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/// <tr> <th colspan="11" align="left">Kernel</th></tr>
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/// <tr align="center"> <td>Pass 0</td> <td> B </td> <td> B </td>
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/// <td> B </td> <td> B </td> <td> B </td> <td> B </td>
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/// <td> B </td> <td> A </td> <td> A </td> <td> A </td> </tr>
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/// <tr align="center"> <td>Pass 1</td> <td> </td> <td> </td>
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/// <td> </td> <td> A </td> <td> A </td> <td> A </td>
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/// <td> A </td> <td> A </td> <td> </td> <td> </td> </tr>
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/// </table>
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#endif
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/// with :
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/// - A : compute kernel applying k_Crease / k_Corner rules
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/// - B : compute kernel applying k_Smooth / k_Dart rules
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///
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/// @param index the index of the vertex
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///
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/// @param rank the rank of the vertex (see
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/// FarSubdivisionTables::GetMaskRanking())
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///
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void AddVertex( int index, int rank );
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/// \brief Appends a FarKernelBatch to a vector of batches for Catmark subdivision
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///
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/// @param level the subdivision level of the vertices in the batch
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///
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/// @param tableOffset XXXX
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///
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/// @param vertexOffset XXXX
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///
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/// @param result the expanded batch vector
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///
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void AppendCatmarkBatches(int level, int tableOffset, int vertexOffset, FarKernelBatchVector *result);
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/// \brief Appends a FarKernelBatch to a vector of batches for Loop subdivision
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///
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/// @param level the subdivision level of the vertices in the batch
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///
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/// @param tableOffset XXXX
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///
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/// @param vertexOffset XXXX
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///
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/// @param result the expanded batch vector
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///
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void AppendLoopBatches(int level, int tableOffset, int vertexOffset, FarKernelBatchVector *result);
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private:
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struct Range {
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int start,
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end;
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};
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Range kernelB; // vertex batch reange (kernel B)
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Range kernelA1; // vertex batch reange (kernel A pass 1)
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Range kernelA2; // vertex batch reange (kernel A pass 2)
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};
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inline void
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FarVertexKernelBatchFactory::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.start)
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kernelB.start=index;
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if (index > kernelB.end)
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kernelB.end=index;
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}
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if ((rank>2) and (rank<8)) {
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if (index < kernelA2.start)
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kernelA2.start=index;
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if (index > kernelA2.end)
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kernelA2.end=index;
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}
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if (rank>6) {
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if (index < kernelA1.start)
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kernelA1.start=index;
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if (index > kernelA1.end)
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kernelA1.end=index;
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}
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}
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inline void
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FarVertexKernelBatchFactory::AppendCatmarkBatches(int level,
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int tableOffset,
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int vertexOffset,
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FarKernelBatchVector *result) {
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if (kernelB.end >= kernelB.start)
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result->push_back(FarKernelBatch( FarKernelBatch::CATMARK_VERT_VERTEX_B, level, 0,
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kernelB.start, kernelB.end+1,
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tableOffset, vertexOffset) );
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if (kernelA1.end >= kernelA1.start)
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result->push_back(FarKernelBatch( FarKernelBatch::CATMARK_VERT_VERTEX_A1, level, 0,
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kernelA1.start, kernelA1.end+1,
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tableOffset, vertexOffset));
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if (kernelA2.end >= kernelA2.start)
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result->push_back(FarKernelBatch( FarKernelBatch::CATMARK_VERT_VERTEX_A2, level, 0,
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kernelA2.start, kernelA2.end+1,
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tableOffset, vertexOffset) );
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}
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inline void
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FarVertexKernelBatchFactory::AppendLoopBatches(int level,
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int tableOffset,
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int vertexOffset,
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FarKernelBatchVector *result) {
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if (kernelB.end >= kernelB.start)
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result->push_back(FarKernelBatch( FarKernelBatch::LOOP_VERT_VERTEX_B, level, 0,
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kernelB.start, kernelB.end+1,
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tableOffset, vertexOffset) );
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if (kernelA1.end >= kernelA1.start)
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result->push_back(FarKernelBatch( FarKernelBatch::LOOP_VERT_VERTEX_A1, level, 0,
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kernelA1.start, kernelA1.end+1,
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tableOffset, vertexOffset) );
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if (kernelA2.end >= kernelA2.start)
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result->push_back(FarKernelBatch( FarKernelBatch::LOOP_VERT_VERTEX_A2, level, 0,
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kernelA2.start, kernelA2.end+1,
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tableOffset, vertexOffset) );
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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_FACTORY_H */
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