diff options
Diffstat (limited to 'lv2/lv2plug.in/ns/ext/contexts')
| -rw-r--r-- | lv2/lv2plug.in/ns/ext/contexts/contexts.h | 82 | ||||
| -rw-r--r-- | lv2/lv2plug.in/ns/ext/contexts/contexts.ttl | 134 | ||||
| l--------- | lv2/lv2plug.in/ns/ext/contexts/ext.pc.in | 1 | ||||
| -rw-r--r-- | lv2/lv2plug.in/ns/ext/contexts/manifest.ttl | 9 | ||||
| -rw-r--r-- | lv2/lv2plug.in/ns/ext/contexts/test.c | 67 | ||||
| l--------- | lv2/lv2plug.in/ns/ext/contexts/waf | 1 | ||||
| l--------- | lv2/lv2plug.in/ns/ext/contexts/wscript | 1 |
7 files changed, 0 insertions, 295 deletions
diff --git a/lv2/lv2plug.in/ns/ext/contexts/contexts.h b/lv2/lv2plug.in/ns/ext/contexts/contexts.h deleted file mode 100644 index f49b474..0000000 --- a/lv2/lv2plug.in/ns/ext/contexts/contexts.h +++ /dev/null @@ -1,82 +0,0 @@ -/* LV2 Contexts 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. - */ - -/** @file - * C header for the LV2 Contexts extension - * <http://lv2plug.in/ns/ext/contexts>. - */ - -#ifndef LV2_CONTEXTS_H -#define LV2_CONTEXTS_H - -#include <stdint.h> - -#include "lv2/lv2plug.in/ns/lv2core/lv2.h" - -#define LV2_CONTEXTS_URI "http://lv2plug.in/ns/ext/contexts" - -static inline void -lv2_contexts_set_port_valid(void* flags, uint32_t index) { - ((uint8_t*)flags)[index / 8] |= 1 << (index % 8); -} - -static inline void -lv2_contexts_unset_port_valid(void* flags, uint32_t index) { - ((uint8_t*)flags)[index / 8] &= ~(1 << (index % 8)); -} - -static inline int -lv2_contexts_port_is_valid(const void* flags, uint32_t index) { - return (((uint8_t*)flags)[index / 8] & (1 << (index % 8))) != 0; -} - -typedef struct { - - /** The message run function. This is called once to process a set of - * inputs and produce a set of outputs. - * - * Before calling the host MUST set valid_inputs such that the bit - * corresponding to each input port is 1 iff data is present. The plugin - * MUST only inspect bits corresponding to ports in the message thread. - * - * Similarly, before returning the plugin MUST set valid_outputs such that - * the bit corresponding to each output port of the message context is 1 - * iff the value at that port has changed. - * The plugin must return 1 if outputs have been written, 0 otherwise. - */ - uint32_t (*run)(LV2_Handle instance, - const void* valid_inputs, - void* valid_outputs); - -} LV2_Contexts_MessageContext; - -typedef void* LV2_Contexts_Request_Run_Data; - -typedef struct { - - /** Pointer to opaque host data (to be passed to request_run) */ - LV2_Contexts_Request_Run_Data data; - - /** Request the host execute the context with the given URI */ - void (*request_run)(LV2_Contexts_Request_Run_Data host_handle, - uint32_t context_uri); - -} LV2_Contexts_Request_Run_Feature; - -#endif /* LV2_CONTEXTS_H */ - diff --git a/lv2/lv2plug.in/ns/ext/contexts/contexts.ttl b/lv2/lv2plug.in/ns/ext/contexts/contexts.ttl deleted file mode 100644 index c56c649..0000000 --- a/lv2/lv2plug.in/ns/ext/contexts/contexts.ttl +++ /dev/null @@ -1,134 +0,0 @@ -# LV2 Contexts Extension -# -# Allows for an LV2 plugin to have several independent contexts, each with its -# own run callback and associated ports. -# -# Copyright (C) 2007-2010 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 ctx: <http://lv2plug.in/ns/ext/contexts#> . -@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/contexts> - a lv2:Specification , lv2:Feature ; - doap:name "LV2 Contexts" ; - doap:shortdesc "Support for plugins with several execution contexts." ; - lv2:documentation """ -<p>An extension for LV2 plugins which have several execution contexts.</p> - -<p>Contexts allow plugins to run tasks and/or process input/output in -multiple threads. Contexts can be used to add non-realtime functionality -to a plugin while still keeping the audio run() method realtime safe.</p> - -<p>A context is an LV2 feature, so the usual LV2 feature mechanism is used -to determine whether a plugin has a given context, and whether or not it is -mandatory.</p> - -<p>Unless otherwise stated, each context (defined by some URI) adds a new -threading class similar to the Audio class defined by LV2. Each context has a -run callback and a connect_port callback both in the same class (i.e. can't be -called concurrently), but may be called concurrently with functions for other -contexts (excluding the Instantiation class). Context properties such as -ctx:hardRTCapable apply to both functions. -The host MUST only call the correct connect_port function associated with the -context for that port, i.e. it is an error to use the main LV2 connect_port -function on a port with a context other than the main LV2 run function.</p> -""" . - - -########################## -## Context Base Classes ## -########################## - -ctx:Context a rdfs:Class ; - rdfs:label "LV2 Context" ; - lv2:documentation """ -<p>A potentially concurrent context (callback) on a plugin.</p> - -<p>Ports are always associated with a context. If a port has no explicit context -property, then its context is ctx:audioContext (the default LV2 run() context).</p> - -<p>A plugin indicates support for a context by supporting an LV2 Feature with -that context's URI. If a plugin optionally supports a context (e.g. -<code><plugin> lv2:optionalFeature ctx:idleContext .</code>), then -all ports associated with that context MUST be lv2:connectionOptional. Thus, -hosts that do not support contexts will connect such ports to NULL and the -plugin can run with only a standard LV2 run() context.</p> - -<p>Any plugin that supports any context (optionally or mandatorily) MUST adhere -to the following additional threading rules for LV2_Descriptor.connect_port:</p> -<ul> -<li>connect_port MUST only be called for a given port from the context -associated with that port</li> -<li>connect_port MAY be called concurrently for ports with different -contexts (but MUST NOT be called concurrently for multiple ports in the -same context)</li> -</ul> -<p>Note this implies that any shared data access in connect_port may be -accessed concurrently. The plugin is responsible for any synchronisation -or locking necessary to make this possible.</p> -""" . - -ctx:audioContext a ctx:Context , lv2:Feature ; - rdfs:comment """The context of LV2_Descriptor.run().""" . - -ctx:messageContext a ctx:Context , lv2:Feature ; - lv2:documentation """ -<p>A non-realtime context for plugin control via message passing. This context -has a run method which takes a bitset of flags for parameters specifying which -input and output ports are valid before and after the run method has executed, -respectively (see <code>LV2_Contexts_MessageContext</code>).</p> -""" . - -ctx:idleContext a ctx:Context , lv2:Feature ; - rdfs:comment """ -A non-realtime idle context, periodically run by the host roughly every second. -This context never has any ports. -""" . - -ctx:requestRunFeature a lv2:Feature ; - lv2:documentation """ -<p>A feature allowing the plugin to request the execution of a particular -context at an arbitrary time. To support this feature, the host MUST pass an -LV2_Feature to <code>instantiate</code> with <code>data</code> pointing to a -LV2_Contexts_Request_Run_Feature.</p> - -<p>The plugin MAY call <code>request_run</code> with the given -<code>data</code> from any non-realtime context to demand soon-as-possible execution -of the specified context.</p> -""" . - -ctx:context a rdf:Property ; - rdfs:domain lv2:Port ; - rdfs:range ctx:Context ; - rdfs:label "is used in context" ; - rdfs:comment """ -The context a particular port is associated with; the port will only be -connected/read/written by that context. - -If no context is specified, the port is considered part of the default LV2 -audio context.""" . - - diff --git a/lv2/lv2plug.in/ns/ext/contexts/ext.pc.in b/lv2/lv2plug.in/ns/ext/contexts/ext.pc.in deleted file mode 120000 index 03dd044..0000000 --- a/lv2/lv2plug.in/ns/ext/contexts/ext.pc.in +++ /dev/null @@ -1 +0,0 @@ -../../../../../ext.pc.in
\ No newline at end of file diff --git a/lv2/lv2plug.in/ns/ext/contexts/manifest.ttl b/lv2/lv2plug.in/ns/ext/contexts/manifest.ttl deleted file mode 100644 index d2cc036..0000000 --- a/lv2/lv2plug.in/ns/ext/contexts/manifest.ttl +++ /dev/null @@ -1,9 +0,0 @@ -@prefix lv2: <http://lv2plug.in/ns/lv2core#> . -@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . - -<http://lv2plug.in/ns/ext/contexts> - a lv2:Specification ; - lv2:minorVersion 0 ; - lv2:microVersion 1 ; - rdfs:seeAlso <contexts.ttl> . - diff --git a/lv2/lv2plug.in/ns/ext/contexts/test.c b/lv2/lv2plug.in/ns/ext/contexts/test.c deleted file mode 100644 index ca41a10..0000000 --- a/lv2/lv2plug.in/ns/ext/contexts/test.c +++ /dev/null @@ -1,67 +0,0 @@ -#include <stdio.h> -#include <stdint.h> -#include <stdbool.h> -#include <limits.h> -#include <assert.h> -#include <unistd.h> -#include "contexts.h" - -#define TEST_ASSERT(check) do {\ - if (!(check)) {\ - fprintf(stderr, "Failure at line %d: %s\n", __LINE__, #check);\ - assert(false);\ - _exit(1);\ - }\ -} while (0) - -#define NUM_PORTS 64 - -void -print_flags(void* flags) -{ - for (int i = NUM_PORTS; i >= 0; --i) - printf((lv2_contexts_port_is_valid(flags, i)) ? "1" : "0"); - printf("\n"); -} - - -int -main() -{ - uint64_t flags = 0; - print_flags(&flags); - - lv2_contexts_set_port_valid(&flags, 16); - print_flags(&flags); - for (int i = 0; i < NUM_PORTS; ++i) { - if (i == 16) { - TEST_ASSERT(lv2_contexts_port_is_valid(&flags, i)); - } else { - TEST_ASSERT(!lv2_contexts_port_is_valid(&flags, i)); - } - } - - lv2_contexts_set_port_valid(&flags, 46); - lv2_contexts_set_port_valid(&flags, 0); - print_flags(&flags); - for (int i = 0; i < NUM_PORTS; ++i) { - if (i == 0 || i == 16 || i == 46) { - TEST_ASSERT(lv2_contexts_port_is_valid(&flags, i)); - } else { - TEST_ASSERT(!lv2_contexts_port_is_valid(&flags, i)); - } - } - - lv2_contexts_unset_port_valid(&flags, 16); - print_flags(&flags); - for (int i = 0; i < NUM_PORTS; ++i) { - if (i == 0 || i == 46) { - TEST_ASSERT(lv2_contexts_port_is_valid(&flags, i)); - } else { - TEST_ASSERT(!lv2_contexts_port_is_valid(&flags, i)); - } - } - - return 0; -} - diff --git a/lv2/lv2plug.in/ns/ext/contexts/waf b/lv2/lv2plug.in/ns/ext/contexts/waf deleted file mode 120000 index 5235032..0000000 --- a/lv2/lv2plug.in/ns/ext/contexts/waf +++ /dev/null @@ -1 +0,0 @@ -../../../../../waf
\ No newline at end of file diff --git a/lv2/lv2plug.in/ns/ext/contexts/wscript b/lv2/lv2plug.in/ns/ext/contexts/wscript deleted file mode 120000 index 7e2c01b..0000000 --- a/lv2/lv2plug.in/ns/ext/contexts/wscript +++ /dev/null @@ -1 +0,0 @@ -../../../../../ext.wscript
\ No newline at end of file |