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surfaceFactoryCache.h
Go to the documentation of this file.
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//
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// Copyright 2021 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_BFR_SURFACE_FACTORY_CACHE_H
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#define OPENSUBDIV3_BFR_SURFACE_FACTORY_CACHE_H
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#include "../version.h"
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#include "../bfr/irregularPatchType.h"
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#include <map>
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#include <cstdint>
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namespace
OpenSubdiv
{
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namespace
OPENSUBDIV_VERSION
{
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namespace
Bfr
{
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//
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// Initial/expected use requires simple searches of and additions to the
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// cache by the SurfaceFactory or its Builders. Longer term, with the
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// possibility of instances of caches being shared between meshes and
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// factories, additional options and/or public methods may be warranted
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// to limit what is cached or to prune the cache if it gets too large.
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//
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class
SurfaceFactoryCache
{
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public
:
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SurfaceFactoryCache
();
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virtual
~SurfaceFactoryCache
();
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SurfaceFactoryCache
(
SurfaceFactoryCache
const
&) =
delete
;
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SurfaceFactoryCache
&
operator=
(
SurfaceFactoryCache
const
&) =
delete
;
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protected
:
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// Access restricted to the Factory, its Builders, etc.
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friend
class
SurfaceFactory
;
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typedef
std::uint64_t KeyType;
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typedef
internal::IrregularPatchSharedPtr DataType;
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protected
:
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size_t
Size()
const
{
return
_map.size(); }
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//
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// Potential overrides by subclasses for thread-safety:
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//
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virtual
DataType Find(KeyType
const
& key)
const
;
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virtual
DataType Add(KeyType
const
& key, DataType
const
& data);
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//
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// Common implementation used by all subclasses:
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//
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DataType find(KeyType
const
& key)
const
;
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DataType add(KeyType
const
& key, DataType
const
& data);
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private
:
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typedef
std::map<KeyType, DataType> MapType;
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MapType _map;
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};
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// Separate read and write locks are provided to support mutex types
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// allowing shared (read) or exclusive (write) access.
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//
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template
<
class
MUTEX_TYPE,
class
READ_LOCK_GUARD_TYPE,
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class
WRITE_LOCK_GUARD_TYPE>
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class
SurfaceFactoryCacheThreaded
:
public
SurfaceFactoryCache
{
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public
:
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SurfaceFactoryCacheThreaded
() :
SurfaceFactoryCache
() { }
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~SurfaceFactoryCacheThreaded
()
override
=
default
;
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protected
:
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//
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// Virtual overrides from base:
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//
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DataType Find(KeyType
const
& key)
const override
{
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READ_LOCK_GUARD_TYPE lockGuard(_mutex);
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return
find(key);
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}
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DataType Add(KeyType
const
& key, DataType
const
& data)
override
{
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WRITE_LOCK_GUARD_TYPE lockGuard(_mutex);
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return
add(key, data);
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}
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private
:
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MUTEX_TYPE
mutable
_mutex;
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};
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}
// end namespace Bfr
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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_BFR_SURFACE_FACTORY_CACHE_H */
OpenSubdiv
Definition
limits.h:32
OpenSubdiv::OPENSUBDIV_VERSION
Definition
limits.h:33
OpenSubdiv::OPENSUBDIV_VERSION::Bfr
Definition
limits.h:35
OpenSubdiv::OPENSUBDIV_VERSION::Bfr::SurfaceFactory
Base class providing initialization of a Surface for each face of a mesh.
Definition
surfaceFactory.h:103
OpenSubdiv::OPENSUBDIV_VERSION::Bfr::SurfaceFactoryCache::SurfaceFactoryCache
SurfaceFactoryCache()
OpenSubdiv::OPENSUBDIV_VERSION::Bfr::SurfaceFactoryCache::~SurfaceFactoryCache
virtual ~SurfaceFactoryCache()
OpenSubdiv::OPENSUBDIV_VERSION::Bfr::SurfaceFactoryCache::SurfaceFactoryCache
SurfaceFactoryCache(SurfaceFactoryCache const &)=delete
OpenSubdiv::OPENSUBDIV_VERSION::Bfr::SurfaceFactoryCache::operator=
SurfaceFactoryCache & operator=(SurfaceFactoryCache const &)=delete
OpenSubdiv::OPENSUBDIV_VERSION::Bfr::SurfaceFactoryCacheThreaded::SurfaceFactoryCacheThreaded
SurfaceFactoryCacheThreaded()
Definition
surfaceFactoryCache.h:120
OpenSubdiv::OPENSUBDIV_VERSION::Bfr::SurfaceFactoryCacheThreaded::~SurfaceFactoryCacheThreaded
~SurfaceFactoryCacheThreaded() override=default
opensubdiv
bfr
surfaceFactoryCache.h
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