annotate bits/PreservingPluginHandleMapper.h @ 51:f4244a2d55ac

Introduce and use output id mappers
author Chris Cannam <c.cannam@qmul.ac.uk>
date Fri, 16 Sep 2016 15:10:57 +0100
parents 55d69b26d4db
children e90fd30990eb
rev   line source
c@31 1 /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
c@31 2
c@31 3 /*
c@31 4 Vampipe
c@31 5
c@31 6 Centre for Digital Music, Queen Mary, University of London.
c@31 7 Copyright 2006-2016 Chris Cannam and QMUL.
c@31 8
c@31 9 Permission is hereby granted, free of charge, to any person
c@31 10 obtaining a copy of this software and associated documentation
c@31 11 files (the "Software"), to deal in the Software without
c@31 12 restriction, including without limitation the rights to use, copy,
c@31 13 modify, merge, publish, distribute, sublicense, and/or sell copies
c@31 14 of the Software, and to permit persons to whom the Software is
c@31 15 furnished to do so, subject to the following conditions:
c@31 16
c@31 17 The above copyright notice and this permission notice shall be
c@31 18 included in all copies or substantial portions of the Software.
c@31 19
c@31 20 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
c@31 21 EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
c@31 22 MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
c@31 23 NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
c@31 24 ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
c@31 25 CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
c@31 26 WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
c@31 27
c@31 28 Except as contained in this notice, the names of the Centre for
c@31 29 Digital Music; Queen Mary, University of London; and Chris Cannam
c@31 30 shall not be used in advertising or otherwise to promote the sale,
c@31 31 use or other dealings in this Software without prior written
c@31 32 authorization.
c@31 33 */
c@31 34
c@31 35 #ifndef VAMPIPE_PRESERVING_PLUGIN_HANDLE_MAPPER_H
c@31 36 #define VAMPIPE_PRESERVING_PLUGIN_HANDLE_MAPPER_H
c@31 37
c@31 38 #include "PluginHandleMapper.h"
c@51 39 #include "PreservingPluginOutputIdMapper.h"
c@31 40
c@32 41 #include <iostream>
c@32 42
c@31 43 namespace vampipe {
c@31 44
c@51 45 //!!! document -- this is a passthrough thing for a single plugin
c@51 46 //!!! handle only, it does not use actually valid Plugin pointers at
c@51 47 //!!! all
c@51 48
c@31 49 class PreservingPluginHandleMapper : public PluginHandleMapper
c@31 50 {
c@31 51 public:
c@31 52 PreservingPluginHandleMapper() : m_handle(0), m_plugin(0) { }
c@31 53
c@40 54 virtual int32_t pluginToHandle(Vamp::Plugin *p) const {
c@31 55 if (p == m_plugin) return m_handle;
c@32 56 else {
c@32 57 std::cerr << "PreservingPluginHandleMapper: p = " << p
c@32 58 << " differs from saved m_plugin " << m_plugin
c@32 59 << " (not returning saved handle " << m_handle << ")"
c@32 60 << std::endl;
c@32 61 throw NotFound();
c@32 62 }
c@31 63 }
c@31 64
c@40 65 virtual Vamp::Plugin *handleToPlugin(int32_t h) const {
c@31 66 m_handle = h;
c@31 67 m_plugin = reinterpret_cast<Vamp::Plugin *>(h);
c@31 68 return m_plugin;
c@31 69 }
c@31 70
c@51 71 virtual const PluginOutputIdMapper &pluginToOutputIdMapper(Vamp::Plugin *) const {
c@51 72 return m_omapper;
c@51 73 }
c@51 74
c@51 75 virtual const PluginOutputIdMapper &handleToOutputIdMapper(int32_t h) const {
c@51 76 return m_omapper;
c@51 77 }
c@51 78
c@31 79 private:
c@40 80 mutable int32_t m_handle;
c@40 81 mutable Vamp::Plugin *m_plugin;
c@51 82 PreservingPluginOutputIdMapper m_omapper;
c@31 83 };
c@31 84
c@31 85 }
c@31 86
c@31 87 #endif