From 138a87e915ad3aff184730415105f94c874174bf Mon Sep 17 00:00:00 2001 From: David Robillard Date: Wed, 20 Apr 2011 16:26:40 +0000 Subject: Rename Ingen::Engine to Ingen::Server (hopefully avoid odd name clases and fix #675). git-svn-id: http://svn.drobilla.net/lad/trunk/ingen@3184 a436a847-0d15-0410-975c-d299462d15a1 --- src/server/EventBuffer.hpp | 86 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 86 insertions(+) create mode 100644 src/server/EventBuffer.hpp (limited to 'src/server/EventBuffer.hpp') diff --git a/src/server/EventBuffer.hpp b/src/server/EventBuffer.hpp new file mode 100644 index 00000000..de67ae0c --- /dev/null +++ b/src/server/EventBuffer.hpp @@ -0,0 +1,86 @@ +/* This file is part of Ingen. + * Copyright 2007-2011 David Robillard + * + * Ingen is free software; you can redistribute it and/or modify it under the + * terms of the GNU General Public License as published by the Free Software + * Foundation; either version 2 of the License, or (at your option) any later + * version. + * + * Ingen is distributed in the hope that it will be useful, but WITHOUT ANY + * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS + * FOR A PARTICULAR PURPOSE. See the GNU General Public License for details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef INGEN_ENGINE_EVENTBUFFER_HPP +#define INGEN_ENGINE_EVENTBUFFER_HPP + +#include "lv2/lv2plug.in/ns/ext/atom/atom.h" +#include "lv2/lv2plug.in/ns/ext/event/event.h" +#include "lv2/lv2plug.in/ns/ext/event/event-helpers.h" +#include "ingen/PortType.hpp" +#include "Buffer.hpp" + +namespace Ingen { +namespace Server { + +class EventBuffer : public Buffer { +public: + EventBuffer(BufferFactory& bufs, size_t capacity); + ~EventBuffer(); + + void* port_data(PortType port_type, SampleCount offset=0) { return _data; } + const void* port_data(PortType port_type, SampleCount offset=0) const { return _data; } + + inline void rewind() const { lv2_event_begin(&_iter, _data); } + + inline void clear() { + _latest_frames = 0; + _latest_subframes = 0; + _data->event_count = 0; + _data->size = 0; + rewind(); + } + + void prepare_read(Context& context); + void prepare_write(Context& context); + + void copy(Context& context, const Buffer* src); + + inline size_t event_count() const { return _data->event_count; } + inline uint32_t capacity() const { return _data->capacity; } + inline uint32_t latest_frames() const { return _latest_frames; } + inline uint32_t latest_subframes() const { return _latest_subframes; } + + bool increment() const; + bool is_valid() const; + + bool get_event(uint32_t* frames, + uint32_t* subframes, + uint16_t* type, + uint16_t* size, + uint8_t** data) const; + + LV2_Atom* get_atom() const; + LV2_Event* get_event() const; + + bool append(uint32_t frames, + uint32_t subframes, + uint16_t type, + uint16_t size, + const uint8_t* data); + +private: + LV2_Event_Buffer* _data; ///< Contents + mutable LV2_Event_Iterator _iter; ///< Iterator into _data + uint32_t _latest_frames; ///< Latest time of all events (frames) + uint32_t _latest_subframes; ///< Latest time of all events (subframes) +}; + +} // namespace Server +} // namespace Ingen + +#endif // INGEN_ENGINE_EVENTBUFFER_HPP -- cgit v1.2.1