mirror of
https://github.com/PixarAnimationStudios/OpenSubdiv
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149 lines
5.2 KiB
C++
149 lines
5.2 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 "License");
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// you may not use this file except in compliance with the License
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// and the following modification to it: Section 6 Trademarks.
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// deleted and replaced with:
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//
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// 6. Trademarks. This License does not grant permission to use the
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// trade names, trademarks, service marks, or product names of the
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// Licensor and its affiliates, except as required for reproducing
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// the content of the NOTICE file.
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//
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// You may obtain a copy of the 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,
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// software distributed under the License is distributed on an
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// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
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// either express or implied. See the License for the specific
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// language governing permissions and limitations under the
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// License.
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//
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#ifndef OSD_OMP_COMPUTE_CONTROLLER_H
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#define OSD_OMP_COMPUTE_CONTROLLER_H
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#include "../version.h"
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#include "../far/dispatcher.h"
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#include "../osd/cpuComputeContext.h"
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#ifdef OPENSUBDIV_HAS_OPENMP
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#include <omp.h>
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#endif
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namespace OpenSubdiv {
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namespace OPENSUBDIV_VERSION {
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/// \brief Compute controller for launching OpenMP subdivision kernels.
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///
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/// OsdOmpComputeController is a compute controller class to launch OpenMP
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/// threaded subdivision kernels. It requires OsdCpuVertexBufferInterface
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/// as arguments of Refine function.
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///
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/// Controller entities execute requests from Context instances that they share
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/// common interfaces with. Controllers are attached to discrete compute devices
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/// and share the devices resources with Context entities.
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///
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class OsdOmpComputeController {
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public:
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typedef OsdCpuComputeContext ComputeContext;
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/// Constructor.
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///
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/// @param numThreads specifies how many openmp parallel threads to use.
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/// -1 attempts to use all available processors.
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///
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explicit OsdOmpComputeController(int numThreads=-1);
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/// Launch subdivision kernels and apply to given vertex buffers.
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///
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/// @param context the OsdCpuContext to apply refinement operations to
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///
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/// @param batches vector of batches of vertices organized by operative
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/// kernel
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///
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/// @param vertexBuffer vertex-interpolated data buffer
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///
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/// @param varyingBuffer varying-interpolated data buffer
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///
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template<class VERTEX_BUFFER, class VARYING_BUFFER>
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void Refine(OsdCpuComputeContext *context,
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FarKernelBatchVector const & batches,
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VERTEX_BUFFER * vertexBuffer,
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VARYING_BUFFER * varyingBuffer) {
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if (batches.empty()) return;
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omp_set_num_threads(_numThreads);
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context->Bind(vertexBuffer, varyingBuffer);
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FarDispatcher::Refine(this,
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batches,
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-1,
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context);
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context->Unbind();
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}
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/// Launch subdivision kernels and apply to given vertex buffers.
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///
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/// @param context the OsdCpuContext to apply refinement operations to
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///
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/// @param batches vector of batches of vertices organized by operative
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/// kernel
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///
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/// @param vertexBuffer vertex-interpolated data buffer
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///
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template<class VERTEX_BUFFER>
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void Refine(OsdCpuComputeContext *context,
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FarKernelBatchVector const &batches,
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VERTEX_BUFFER *vertexBuffer) {
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Refine(context, batches, vertexBuffer, (VERTEX_BUFFER*)0);
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}
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/// Waits until all running subdivision kernels finish.
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void Synchronize();
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protected:
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friend class FarDispatcher;
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void ApplyBilinearFaceVerticesKernel(FarKernelBatch const &batch, void * clientdata) const;
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void ApplyBilinearEdgeVerticesKernel(FarKernelBatch const &batch, void * clientdata) const;
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void ApplyBilinearVertexVerticesKernel(FarKernelBatch const &batch, void * clientdata) const;
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void ApplyCatmarkFaceVerticesKernel(FarKernelBatch const &batch, void * clientdata) const;
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void ApplyCatmarkEdgeVerticesKernel(FarKernelBatch const &batch, void * clientdata) const;
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void ApplyCatmarkVertexVerticesKernelB(FarKernelBatch const &batch, void * clientdata) const;
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void ApplyCatmarkVertexVerticesKernelA1(FarKernelBatch const &batch, void * clientdata) const;
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void ApplyCatmarkVertexVerticesKernelA2(FarKernelBatch const &batch, void * clientdata) const;
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void ApplyLoopEdgeVerticesKernel(FarKernelBatch const &batch, void * clientdata) const;
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void ApplyLoopVertexVerticesKernelB(FarKernelBatch const &batch, void * clientdata) const;
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void ApplyLoopVertexVerticesKernelA1(FarKernelBatch const &batch, void * clientdata) const;
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void ApplyLoopVertexVerticesKernelA2(FarKernelBatch const &batch, void * clientdata) const;
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void ApplyVertexEdits(FarKernelBatch const &batch, void * clientdata) const;
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int _numThreads;
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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 // OSD_OMP_COMPUTE_CONTROLLER_H
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