From cef9811dac46a9d54dab0f0d82ce5c3ae032fc7c Mon Sep 17 00:00:00 2001 From: David Robillard Date: Mon, 4 Oct 2010 18:21:08 +0000 Subject: Initial import of lv2plug.in universe. --- ext/resize-port.lv2/resize-port.ttl | 85 +++++++++++++++++++++++++++++++++++++ 1 file changed, 85 insertions(+) create mode 100644 ext/resize-port.lv2/resize-port.ttl (limited to 'ext/resize-port.lv2/resize-port.ttl') diff --git a/ext/resize-port.lv2/resize-port.ttl b/ext/resize-port.lv2/resize-port.ttl new file mode 100644 index 0000000..d6bbb35 --- /dev/null +++ b/ext/resize-port.lv2/resize-port.ttl @@ -0,0 +1,85 @@ +# LV2 Contexts Extension +# +# Allows for an LV2 plugin to have several independent contexts, each with its +# own run callback and associated ports. +# +# Copyright (C) 2007 David Robillard +# +# Permission is hereby granted, free of charge, to any person obtaining a +# copy of this software and associated documentation files (the "Software"), +# to deal in the Software without restriction, including without limitation +# the rights to use, copy, modify, merge, publish, distribute, sublicense, +# and/or sell copies of the Software, and to permit persons to whom the +# Software is furnished to do so, subject to the following conditions: +# +# The above copyright notice and this permission notice shall be included +# in all copies or substantial portions of the Software. +# +# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL +# THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR +# OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, +# ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR +# OTHER DEALINGS IN THE SOFTWARE. + +@prefix rsz: . +@prefix lv2: . +@prefix rdf: . +@prefix rdfs: . +@prefix xsd: . +@prefix doap: . +@prefix foaf: . + + + a lv2:Specification ; + a lv2:Feature ; + doap:name "LV2 Resize Port Extension" ; + rdfs:comment """ +An extension that allows LV2 plugins to request a resize of an output port. + +Any host which supports this extension must pass an LV2_Feature to +the plugin's instantiate method with URI http://lv2plug.in/ns/ext/resize-port +and a pointer to a +
+struct {
+	void* host_handle;
+	void (*resize_port)(void* host_handle, uint32_t index);
+}
+
+where the plugin may call resize_port with the given host_handle from any +context to demand the resize of an output port buffer. The plugin MUST call +this function from the context of the given port. + +This function MAY return NULL at any time, plugins MUST gracefully handle +this situation. +""" . + +rsz:asLargeAs a rdf:Property ; + rdfs:domain lv2:Port ; + rdfs:range lv2:Symbol ; + rdfs:label "as large as" ; + rdfs:comment """ +Indicates that a port requires at least as much buffer space as the port +with the given symbol on the same plugin instance. This may be used for +any ports, but is generally most useful to indicate an output port must +be at least as large as some input port (because it will copy from it). +If a port is asLargeAs several ports, it is asLargeAs the largest such port +(not the sum of those ports' sizes). + +The host guarantees that whenever an ObjectPort's run method is called, +any output O that is obj:asLargeAs an input I is connected to a buffer large +enough to copy I, or NULL if the port is lv2:connectionOptional. +""" . + +rsz:minimumSize a rdf:Property ; + rdfs:domain lv2:Port ; + rdfs:range lv2:Symbol ; + rdfs:label "minimum size" ; + rdfs:comment """ +Indicates that a port requires a buffer at least this large, in bytes. +Any host that supports the resize-port feature MUST connect any port with a +minimumSize specified to a buffer at least as large as the value given for +this property. Any host, especially those that do NOT support dynamic port +resizing, SHOULD do so or reduced functionality may result. +""" . -- cgit v1.2.1