diff options
Diffstat (limited to 'lv2/ns/ext/resize-port')
| l--------- | lv2/ns/ext/resize-port/ext.pc.in | 1 | ||||
| -rw-r--r-- | lv2/ns/ext/resize-port/manifest.ttl | 9 | ||||
| -rw-r--r-- | lv2/ns/ext/resize-port/resize-port.h | 57 | ||||
| -rw-r--r-- | lv2/ns/ext/resize-port/resize-port.ttl | 80 | ||||
| l--------- | lv2/ns/ext/resize-port/waf | 1 | ||||
| l--------- | lv2/ns/ext/resize-port/wscript | 1 |
6 files changed, 149 insertions, 0 deletions
diff --git a/lv2/ns/ext/resize-port/ext.pc.in b/lv2/ns/ext/resize-port/ext.pc.in new file mode 120000 index 0000000..82b50df --- /dev/null +++ b/lv2/ns/ext/resize-port/ext.pc.in @@ -0,0 +1 @@ +../../../../ext.pc.in
\ No newline at end of file diff --git a/lv2/ns/ext/resize-port/manifest.ttl b/lv2/ns/ext/resize-port/manifest.ttl new file mode 100644 index 0000000..37d1b42 --- /dev/null +++ b/lv2/ns/ext/resize-port/manifest.ttl @@ -0,0 +1,9 @@ +@prefix lv2: <http://lv2plug.in/ns/lv2core#> . +@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . + +<http://lv2plug.in/ns/ext/resize-port> + a lv2:Specification ; + lv2:minorVersion 0 ; + lv2:microVersion 1 ; + rdfs:seeAlso <resize-port.ttl> . + diff --git a/lv2/ns/ext/resize-port/resize-port.h b/lv2/ns/ext/resize-port/resize-port.h new file mode 100644 index 0000000..7f014a3 --- /dev/null +++ b/lv2/ns/ext/resize-port/resize-port.h @@ -0,0 +1,57 @@ +/* LV2 Resize Port Extension + * Copyright (C) 2007-2009 David Robillard <http://drobilla.net> + * + * This header 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. + * + * This header 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 more 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 LV2_RESIZE_PORT_H +#define LV2_RESIZE_PORT_H + +#include <stdbool.h> +#include <stddef.h> +#include <stdint.h> + +#define LV2_RESIZE_PORT_URI "http://lv2plug.in/ns/ext/resize-port" + +typedef void* LV2_Resize_Port_Feature_Data; + +typedef struct { + + LV2_Resize_Port_Feature_Data data; + + /** Resize a port buffer to at least @a size bytes. + * + * This function MAY return false, in which case the port buffer was + * not resized and the port is still connected to the same location. + * Plugins MUST gracefully handle this situation. + * + * This function MUST NOT be called from any context other than + * the context associated with the port of the given index. + * + * The host MUST preserve the contents of the port buffer when + * resizing. + * + * Plugins MAY resize a port many times in a single run callback. + * Hosts SHOULD make this an inexpensive as possible (i.e. plugins + * can liberally use this function in a similar way to realloc). + */ + bool (*resize_port)(LV2_Resize_Port_Feature_Data data, + uint32_t index, + size_t size); + +} LV2_Resize_Port_Feature; + +#endif /* LV2_RESIZE_PORT_H */ + diff --git a/lv2/ns/ext/resize-port/resize-port.ttl b/lv2/ns/ext/resize-port/resize-port.ttl new file mode 100644 index 0000000..baa1f7f --- /dev/null +++ b/lv2/ns/ext/resize-port/resize-port.ttl @@ -0,0 +1,80 @@ +# 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: <http://lv2plug.in/ns/ext/resize-port#> . +@prefix lv2: <http://lv2plug.in/ns/lv2core#> . +@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> . +@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . +@prefix xsd: <http://www.w3.org/2001/XMLSchema#> . +@prefix doap: <http://usefulinc.com/ns/doap#> . +@prefix foaf: <http://xmlns.com/foaf/0.1/> . + +<http://lv2plug.in/ns/ext/resize-port> + a lv2:Specification ; + a lv2:Feature ; + doap:name "LV2 Resize Port Extension" ; + doap:shortdesc "Dynamically sized LV2 port buffers." ; + lv2:documentation """ +<p>An extension that allows LV2 plugins to request a resize of an output port.</p> + +<p>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 LV2_Resize_Port_Feature structure (see +<a href="resize-port.h">resize-port.h</a> for details). This structure +provides a resize_port function which plugins may use to resize output +port buffers as necessary.</p> + +<p>This extension also defines several predicates useful for describing the +amount of space required for a particular port buffer.</p> +""" . + +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. +""" . diff --git a/lv2/ns/ext/resize-port/waf b/lv2/ns/ext/resize-port/waf new file mode 120000 index 0000000..b955110 --- /dev/null +++ b/lv2/ns/ext/resize-port/waf @@ -0,0 +1 @@ +../../../../waf
\ No newline at end of file diff --git a/lv2/ns/ext/resize-port/wscript b/lv2/ns/ext/resize-port/wscript new file mode 120000 index 0000000..ec20a77 --- /dev/null +++ b/lv2/ns/ext/resize-port/wscript @@ -0,0 +1 @@ +../../../../ext.wscript
\ No newline at end of file |