diff options
Diffstat (limited to 'ext/ui.lv2')
| -rw-r--r-- | ext/ui.lv2/manifest.ttl | 8 | ||||
| -rw-r--r-- | ext/ui.lv2/ui.h | 312 | ||||
| -rw-r--r-- | ext/ui.lv2/ui.ttl | 189 |
3 files changed, 0 insertions, 509 deletions
diff --git a/ext/ui.lv2/manifest.ttl b/ext/ui.lv2/manifest.ttl deleted file mode 100644 index 79f73e6..0000000 --- a/ext/ui.lv2/manifest.ttl +++ /dev/null @@ -1,8 +0,0 @@ -@prefix lv2: <http://lv2plug.in/ns/lv2core#>. -@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#>. - -<http://lv2plug.in/ns/ext/ui> - a lv2:Specification; - lv2:minorVersion 0; - lv2:microVersion 1; - rdfs:seeAlso <ui.ttl>. diff --git a/ext/ui.lv2/ui.h b/ext/ui.lv2/ui.h deleted file mode 100644 index 5274cd5..0000000 --- a/ext/ui.lv2/ui.h +++ /dev/null @@ -1,312 +0,0 @@ -/************************************************************************ - * - * In-process UI extension for LV2 - * - * Copyright (C) 2006-2011 Lars Luthman <mail@larsluthman.net> - * - * Based on lv2.h, which was - * - * Copyright (C) 2000-2002 Richard W.E. Furse, Paul Barton-Davis, - * Stefan Westerfeld - * Copyright (C) 2006 Steve Harris, David Robillard. - * - * This header is free software; you can redistribute it and/or modify it - * under the terms of the GNU Lesser General Public License as published - * by the Free Software Foundation; either version 2.1 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 - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with this library; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 - * USA. - * - ***********************************************************************/ - -/** - @file ui.h C API for the LV2 UI extension <http://lv2plug.in/ns/ext/ui>. - - This file specifies a C API for communication between an LV2 host and an - LV2 UI. The interface is similar to the one used for actual LV2 plugins. - - The entry point is the function lv2ui_descriptor(). -*/ - -#ifndef LV2_UI_H -#define LV2_UI_H - -#include <lv2.h> - -/** The URI of this extension (note this is not the same as the prefix). */ -#define LV2_UI_URI "http://lv2plug.in/ns/ext/ui" - -/** The numerical ID returned by LV2_UI_Host_Descriptor::port_index() for - invalid port symbols. */ -#define LV2_UI_INVALID_PORT_INDEX ((uint32_t)-1) - -/** The numerical ID returned by LV2_UI_Host_Descriptor::port_protocol_id() for - invalid or unsupported PortProtocols. */ -#define LV2_UI_INVALID_PORT_PROTOCOL_ID 0 - -/** The full URI for the ui:floatControl PortProtocol. */ -#define LV2_UI_FLOAT_CONTROL_URI "http://lv2plug.in/ns/ext/ui#floatControl" - -#ifdef __cplusplus -extern "C" { -#endif - -/** - A pointer to a widget or other type of UI. - The actual type is defined by the type of the UI defined in the RDF data. - All the functionality provided by this extension is toolkit independent, the - host only needs to pass the necessary callbacks and display the widget, if - possible. Plugins may have several UIs, in various toolkits. -*/ -typedef void* LV2_UI_Widget; - -/** - Handle for a particular instance of a UI. - It is valid to compare this to NULL (0 for C++) but otherwise the host MUST - NOT attempt to interpret it. The UI may use it to reference internal - instance data. -*/ -typedef void* LV2_UI_Handle; - -/** - Handle for host functions and data provided to a UI. - An object of this type is passed to the UI's instantiate() function, and the - UI must in turn pass it as the first parameter to the callbacks in - LV2_UI_Host_Descriptor. The host may use it to reference internal data, such - as the plugin instance that the UI is associated with. The UI MUST NOT - interpret the value of an LV2_UI_Host_Handle in any way. -*/ -typedef void* LV2_UI_Host_Handle; - -/** - Host-provided functions that the UI can use to control the plugin instance. - - A pointer to an object of this type is passed to the lv2ui_descriptor() - function. - - The host MUST provide non-NULL values for all the function pointers. -*/ -typedef struct _LV2_UI_Host_Descriptor { - - /** - Send data to one of the plugin's input ports. - - The @a buffer parameter MUST point to a block of data @a buffer_size - bytes large. The contents of this buffer and what the host should do - with it depends on the value of the @a port_protocol parameter. - - The @a port_protocol parameter MUST be a numeric ID for a - ui:PortProtocol. Numeric IDs for PortProtocols are retrieved using the - port_protocol_id() function. - - The @a buffer is only valid during the time of this function call, so if - the host wants to keep it for later use it has to copy the contents to an - internal buffer. - - @param host_handle The @a host_handle that was passed to the UI's - instantiate() function. - @param port_index The index of the port that the data should be written - to, as returned by port_index(). - @param buffer_size The size of the data pointed to by @a buffer, in - bytes. - @param port_protocol The numeric ID of the Port Protocol to use, - as returned by port_protocol_id(). - */ - void (*write_port)(LV2_UI_Host_Handle host_handle, - uint32_t port_index, - uint32_t buffer_size, - uint32_t port_protocol, - void const* buffer); - - /** - Return the numerical index for a port. - This index is used when writing data to ports using write_port() and whe - receiving data using port_event(). If @a port_symbol is not a valid port - symbol for @a plugin the host it MUST return - LV2_UI_INVALID_PORT_INDEX. For performance reasons it may be a good idea - to cache port indices in the UI at instantiation time. - - @param host_handle The LV2_UI_Host_Handle that was passed to the UI's - instantiate() function. - @param port_symbol The port's symbol, as defined in the RDF data for - the plugin. - */ - uint32_t (*port_index)(LV2_UI_Host_Handle host_handle, - char const* port_symbol); - - /** - This function is used by the UI, typically at instantiation, to get - the numeric IDs that are mapped to certain ui:PortProtocols (see - ui.ttl for details). If the host does not support the given - ui:PortProtocol it MUST return LV2_UI_INVALID_PORT_PROTOCOL_ID, - but the UI SHOULD not rely on this to find out which protocols - are supported, it should check the @a features array passed to - instantiate() for this. - - @param host_handle The @a host_handle that was passed to the UI's - instantiate() function. - @param port_protocol_uri The URI of the ui:PortProtocol. - */ - uint32_t (*port_protocol_id)(LV2_UI_Host_Handle host_handle, - char const* port_protocol_uri); - - /** - Subscribe to updates for a port. - This means that the host will call the UI's port_event() function when - the port value changes (as defined by the PortProtocol). - - Calling this function with the same @a port_index and @a port_protocol - as an already active subscription has no effect. - - @param host_handle The @a host_handle that was passed to the UI's - instantiate() function. - @param port_index The index of the port, as returned by port_index(). - @param port_protocol The numeric ID of the PortProtocol, as - returned by port_protocol_id(). - */ - void (*add_port_subscription)(LV2_UI_Host_Handle host_handle, - uint32_t port_index, - uint32_t port_protocol); - - /** - Unsubscribe to updates for a port. - This means that the host will cease calling calling port_event() when - the port value changes. - - Calling this function with a @a port_index and @a port_protocol that - does not refer to an active port subscription has no effect. - - @param host_handle The @a host_handle that was passed to the UI's - instantiate() function. - @param port_index The index of the port, as returned by port_index(). - @param port_protocol The numeric ID of the PortProtocol, as - returned by port_protocol_id(). - */ - void (*remove_port_subscription)(LV2_UI_Host_Handle host_handle, - uint32_t port_index, - uint32_t port_protocol); - -} LV2_UI_Host_Descriptor; - -/** - This struct contains the implementation of an UI. A pointer to an - object of this type is returned by the lv2ui_descriptor() function. -*/ -typedef struct _LV2_UI_Descriptor { - - /** - The URI for this UI (not for the plugin it controls). - */ - char const* URI; - - /** - Create a new UI object and return a handle to it. This function works - similarly to the instantiate() member in LV2_Descriptor. - - @param descriptor The descriptor for the UI to instantiate. - - @param plugin_uri The URI of the plugin that this UI will control. - - @param bundle_path The path to the bundle containing the RDF data that - references this shared object file, with trailing separator (e.g. '/'). - - @param host_descriptor A pointer to an object that contains function - pointers that the UI instance should use to control the plugin - instance. This pointer MUST be valid until cleanup() is called for this - UI instance. - - @param host_handle A handle that the host may use to reference internal - data. It MUST be passed as the first parameter to the function - pointers in @a host_descriptor, and MUST NOT be interpreted in any other - way by the UI. - - @param features A NULL-terminated array of LV2_Feature pointers. The - host must pass all feature URIs that it and the UI supports and any - additional data, just like in the LV2 plugin instantiate() - function. Note that UI features and plugin features are NOT necessarily - the same; @a features will probably not be the same array as the one the - plugin host passes to a plugin. - */ - LV2_UI_Handle (*instantiate)(struct _LV2_UI_Descriptor const* descriptor, - char const* plugin_uri, - char const* bundle_path, - LV2_UI_Host_Descriptor const* host_descriptor, - LV2_UI_Host_Handle host_handle, - LV2_Feature const* const* features); - - /** - Return the widget pointer for the UI object. - This MUST return the same value during the entire lifetime of the UI - object. - */ - LV2_UI_Widget (*get_widget)(LV2_UI_Handle ui); - - /** - Destroy the UI object and the associated widget. - The host must not try to access the widget after calling this function. - */ - void (*cleanup)(LV2_UI_Handle ui); - - /** - Notify the UI that something has happened to a subscribed port. - - This is called by the host when something happens at a plugin port that - has been subscribed to using - LV2_UI_Host_Descriptor::add_port_subscription(). - - The @a buffer is only valid during the time of this function call, so if - the UI wants to keep it for later use it has to copy the contents to an - internal buffer. - - @param ui A handle for the UI object. - @param port_index The index of the port that has changed, as returned by - LV2_UI_Host_Descriptor::port_index(). - @param buffer_size The size of the data buffer in bytes. - @param port_protocol The format of the data buffer, as returned by - LV2_UI_Host_Descriptor::port_protocol_id(). - @param buffer A pointer to the data buffer. - */ - void (*port_event)(LV2_UI_Handle ui, - uint32_t port_index, - uint32_t buffer_size, - uint32_t port_protocol, - void const* buffer); - - /** - Return a data structure associated with an extension URI. - - This facility can be used by extensions to extend the LV2_UI_Descriptor - API. This function adheres to the same rules as - LV2_Descriptor::extension_data, except it applies to UIs rather than - plugins. - */ - void const* (*extension_data)(char const* uri); - -} LV2_UI_Descriptor; - -/** - Prototype for UI accessor function. - - This function follows the same rules as lv2_desciprotr(), except it applies - to UIs rather than plugins. -*/ -LV2_UI_Descriptor const* lv2ui_descriptor(uint32_t index); - -/** - Type of the lv2ui_descriptor() function in a UI library. -*/ -typedef LV2_UI_Descriptor const* (*LV2_UI_DescriptorFunction)(uint32_t index); - -#ifdef __cplusplus -} -#endif - -#endif /* LV2_UI_H */ diff --git a/ext/ui.lv2/ui.ttl b/ext/ui.lv2/ui.ttl deleted file mode 100644 index 3839f38..0000000 --- a/ext/ui.lv2/ui.ttl +++ /dev/null @@ -1,189 +0,0 @@ -# LV2 UI Extension -# Copyright (C) 2010-2011 Lars Luthman <mail@larsluthman.net> -# -# Based on lv2.ttl, which is -# Copyright (C) 2006-2008 Steve Harris, David Robillard -# -# This extension should be considered a replacement for the earlier -# in-process UI extension with the URI <http://lv2plug.in/ns/extensions/ui>. -# Hosts and plugins that used that extension should use this one instead. -# The earlier in-process UI extension is not compatible with LV2 revision 3 -# and later and may break in subtle ways. -# -# 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 ui: <http://lv2plug.in/ns/ext/ui#>. -@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 doap: <http://usefulinc.com/ns/doap#> . -@prefix foaf: <http://xmlns.com/foaf/0.1/> . - -<http://lv2plug.in/ns/ext/ui> a lv2:Specification ; - doap:license <http://usefulinc.com/doap/licenses/mit>; - doap:name "LV2 UI" ; - doap:release [ - doap:revision "0.1" ; - doap:created "2011-03-26" - ]; - doap:maintainer [ - a foaf:Person; - foaf:name "Lars Luthman"; - foaf:mbox <mailto:mail@larsluthman.net>; - ]; - lv2:documentation """ -<p>This extension defines an interface that can be used to create UIs for -plugins. The UIs are code that reside in shared object files in an LV2 -bundle and are referenced in the RDF data using the triples -<pre> - @prefix ui: <http://lv2plug.in/ns/ext/ui#> . - @prefix ui-gtk: <http://lv2plug.in/ns/ext/ui-gtk#> . - <http://example.org/my-ui> a ui-gtk:GtkUI ; - lv2:appliesTo <http://example.org/my-plugin> ; - ui:binary <my-ui.so> . -</pre> -where <code>http://example.org/my-plugin</code> is the URI of the plugin, -<code>http://example.org/my-ui</code> is the URI of the plugin UI and -<code>my-ui.so</code> is the relative URI to the shared object file. While it -is possible to have the plugin UI and the plugin in the same shared object file -it is probably a good idea to keep them separate so that hosts that don't want -UIs don't have to load the UI code.</p> - -<p>A UI MUST specify its class in the RDF data and the class MUST be a proper -subclass of ui:UI, in this case ui-gtk:GtkUI. The class defines what type the -UI is, e.g. what graphics toolkit it uses. There are no UI classes defined in -this extension, those are specified separately (and anyone can define their -own).</p> - -<p>It's entirely possible to have multiple UIs for the same plugin, or to have -the UI for a plugin in a different bundle from the actual plugin - this way -people other than the plugin author can write plugin UIs independently without -editing the original plugin bundle. It is also possible to have one UI that -works with several different plugins.</p> - -<p>UIs should also be written in such a way that the host may load several -instances of an UI, or different UIs, and use them with the same plugin -instance.</p> - -<p>Note that the process that loads the shared object file containing the UI -code and the process that loads the shared object file containing the actual -plugin implementation do not have to be the same. There are many valid reasons -for having the plugin and the UI in different processes, or even on different -machines. This means that you can <b>not</b> use singletons and global -variables and expect them to refer to the same objects in the UI and the actual -plugin. The function callback interface defined in the header -<a href="../../doc/html/ui_8lv2_2ui_8h.html">ui<!-- hackety hack -->.h</a> is -all you can expect to work.</p> -""". - -############## -## UI Class ## -############## - -ui:UI a rdfs:Class; - rdfs:subClassOf lv2:Feature; - rdfs:label "UI"; - lv2:documentation """ -<p>The class which represents an LV2 plugin UI. -</p> - -<p>To be used by a host a UI MUST have at least the following properties: -<pre> - rdf:type (with object a proper subclass of ui:UI) - doap:name (one without language tag) - lv2:binary (with a shared object file as object) - lv2:appliesTo (with a LV2 plugin as object) -</pre> -The rdf:type of an UI is used by the host to decide whether it supports the -UI and how to handle the LV2_UI_Widget object that is returned by the UIs -get_widget() function. For example, a type of ui-gtk:GtkGUI might tell the host -that LV2_UI_Widget is a pointer to an object of a type defined in the Gtk+ -library. No UI types are defined in this extension, that is intentionally -left for other extensions. -</p> - -<p>The doap:name property should be at most a few words in length using title -capitalization, e.g. "Flashy Mixer GUI". Use lv2:documentation for more -detailed descriptions.</p> - -<p>UIs may have optional or required features, specified using lv2:optionalFeature -or lv2:requiredFeature. The same rules apply here as for plugins; a host MUST -pass the LV2_Feature objects for all features it supports to the UI's -instantiate() function, a host SHOULD NOT try to instantiate an UI if it -doesn't support all of its required features, and an UI MUST fail to -instantiate if the host doesn't pass all required features to instantiate(). -</p> - -<p>For details about the C API used to load UIs, see the file -<a href="../../doc/html/ui_8lv2_2ui_8h.html">ui<!-- hackety hack -->.h</a>. -</p> -""" . - - -#################### -## Port Protocols ## -#################### - -ui:PortProtocol a rdfs:Class; - rdfs:subClassOf lv2:Feature; - rdfs:label "Port protocol"; - lv2:documentation """ -<p>A PortProtocol defines a certain way of communicating port data between UI -and plugin. PortProtocols can be specified in additional extensions, and -those extensions MUST specify: -</p> - -<p><ol> -<li>Which plugin port types the buffer type is valid for</li> -<li>When the host should call port_event() in LV2_UI_Descriptor</li> -<li>The format of the data in the buffer passed to port_event()</li> -<li>The format of the data in the buffer passed to write_port()</li> -<li>What happens when the UI calls write_port() in LV2_UI_Host_Descriptor</li> -<li>What data (if any) should be passed in the LV2_Feature data pointer. </li> -</ol></p> - -<p>For an example, see ui:floatControl. -</p> - -<p>PortProtocol is a subclass of lv2:Feature, so UIs use lv2:optionalFeature and -lv2:requiredFeature to specify which PortProtocols they want to use. -</p> -""". - -ui:floatControl a ui:PortProtocol; - rdfs:label "Floating point value"; - lv2:documentation """ -<p>The rules (see ui:PortProtocol) for this port protocol are:</p> -<ol> -<li>This PortProtocol is valid for ports with the type lv2:ControlPort.</li> -<li>The host SHOULD call port_event() as soon as possible when the port value - has changed, but the plugin MUST NOT depend on a call for every change or - the timing of the calls. However, the host MUST do the calls in the same - order that the value changes occur in.</li> -<li>The format of the data in the buffer passed to port_event() is a single - float, and the buffer size is sizeof(float).</li> -<li>Same as 3.</li> -<li>The host SHOULD change the port value as soon as possible when write_port() - is called, but the UI MUST NOT depend on a change for every call or the - timing of the changes. However, the host MUST do the changes in the same - order that the function calls occur in.</li> -<li>The data pointer in the LV2_Feature object for this feature should be - NULL.</li> -</ol> -""". |