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https://github.com/PixarAnimationStudios/OpenSubdiv
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392e5e8bed
While this may be worth revisiting, we should first quantify the benefits and identify the compilers that support it. Ultimately, we may never use pragma once in favor of strictly using standard C++.
113 lines
4.3 KiB
C++
113 lines
4.3 KiB
C++
//
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// Copyright 2015 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 OPENSUBDIV3_OSD_TBB_EVALUATOR_H
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#define OPENSUBDIV3_OSD_TBB_EVALUATOR_H
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#include "../version.h"
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#include "../osd/vertexDescriptor.h"
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#include <cstddef>
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namespace OpenSubdiv {
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namespace OPENSUBDIV_VERSION {
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namespace Osd {
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class TbbEvaluator {
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public:
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/// \brief Generic static stencil eval function. This function has a same
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/// signature as other device kernels have so that it can be called
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/// transparently from OsdMesh template interface.
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///
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/// @param srcBuffer Input primvar buffer.
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/// must have BindCpuBuffer() method returning a
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/// const float pointer for read
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///
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/// @param srcDesc vertex buffer descriptor for the input buffer
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///
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/// @param dstBuffer Output primvar buffer
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/// must have BindCpuBuffer() method returning a
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/// float pointer for write
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///
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/// @param dstDesc vertex buffer descriptor for the output buffer
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///
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/// @param stencilTable stencil table to be applied.
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///
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/// @param instance not used in the tbb kernel
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/// (declared as a typed pointer to prevent
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/// undesirable template resolution)
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///
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/// @param deviceContext not used in the tbb kernel
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///
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template <typename VERTEX_BUFFER, typename STENCIL_TABLE>
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static bool EvalStencils(VERTEX_BUFFER *srcVertexBuffer,
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VertexBufferDescriptor const &srcDesc,
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VERTEX_BUFFER *dstVertexBuffer,
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VertexBufferDescriptor const &dstDesc,
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STENCIL_TABLE const *stencilTable,
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TbbEvaluator const *instance = NULL,
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void *deviceContext = NULL) {
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(void)instance; // unused
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(void)deviceContext; // unused
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return EvalStencils(srcVertexBuffer->BindCpuBuffer(),
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srcDesc,
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dstVertexBuffer->BindCpuBuffer(),
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dstDesc,
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&stencilTable->GetSizes()[0],
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&stencilTable->GetOffsets()[0],
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&stencilTable->GetControlIndices()[0],
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&stencilTable->GetWeights()[0],
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/*start = */ 0,
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/*end = */ stencilTable->GetNumStencils());
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}
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static bool EvalStencils(const float *src,
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VertexBufferDescriptor const &srcDesc,
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float *dst,
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VertexBufferDescriptor const &dstDesc,
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const int *sizes,
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const int *offsets,
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const int *indices,
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const float *weights,
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int start,
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int end);
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static void Synchronize(void *deviceContext = NULL);
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static void SetNumThreads(int numThreads);
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};
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} // end namespace Osd
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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 // OPENSUBDIV3_OSD_TBB_EVALUATOR_H
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