diff options
Diffstat (limited to 'lv2/lv2plug.in/ns/ext/morph')
| -rw-r--r-- | lv2/lv2plug.in/ns/ext/morph/morph.h | 84 | ||||
| -rw-r--r-- | lv2/lv2plug.in/ns/ext/morph/morph.ttl | 60 |
2 files changed, 35 insertions, 109 deletions
diff --git a/lv2/lv2plug.in/ns/ext/morph/morph.h b/lv2/lv2plug.in/ns/ext/morph/morph.h index 3c8ec46..6739d39 100644 --- a/lv2/lv2plug.in/ns/ext/morph/morph.h +++ b/lv2/lv2plug.in/ns/ext/morph/morph.h @@ -29,88 +29,6 @@ #define LV2_MORPH__MorphPort LV2_MORPH_PREFIX "MorphPort" #define LV2_MORPH__interface LV2_MORPH_PREFIX "interface" #define LV2_MORPH__supportsType LV2_MORPH_PREFIX "supportsType" - -#ifdef __cplusplus -extern "C" { -#endif - -typedef enum { - LV2_MORPH_SUCCESS = 0, /**< Completed successfully. */ - LV2_MORPH_ERR_UNKNOWN = 1, /**< Unknown error. */ - LV2_MORPH_ERR_BAD_TYPE = 2, /**< Unsupported type. */ - LV2_MORPH_ERR_BAD_PORT = 3 /**< Port is not morphable. */ -} LV2_Morph_Status; - -/** A port property. */ -typedef struct { - LV2_URID key; /**< Key (predicate) */ - uint32_t size; /**< Value size */ - LV2_URID type; /**< Value type */ - const void* value; /**< Value (object) */ -} LV2_Morph_Property; - -/** The interface provided by a plugin to support morph ports. */ -typedef struct { - /** - Morph a port to a different type. - - This function is in the audio threading class. - - This function MAY return an error, in which case the port's type was not - changed. If the type was changed and the plugin has AutoMorphPort - ports, the host MUST check the type of every AutoMorphPort using the - port_type() function since they may have changed. - - This function MUST gracefully handle being called for ports that are not - MorpPorts by ignoring the request and returning LV2_MORPH_ERR_BAD_PORT. - - A NULL-terminated array of additional properties to set on the port may - be passed via @p properties. These properties and their values are - owned by the caller and valid only for the duration of the call. - - @param instance The plugin instance. - @param port The index of the port to change the type of. - @param type The new port type URID. - @param properties Additional properties to set, or NULL. - */ - LV2_Morph_Status (*morph_port)(LV2_Handle instance, - uint32_t port, - LV2_URID type, - const LV2_Morph_Property*const* properties); - - /** - Get the type of an AutoMorphPort. - - This function is in the audio threading class. - - If the plugin has no auto morph ports, this field may be NULL. This - function may only be called for ports which are AutoMorphPorts. - - This function MAY return 0, which indicates that the current - configuration of MorphPort types is invalid and the port is - non-functional. If the port is not lv2:connectionOptional, then the - plugin MUST NOT be used. - - The @p properties parameter may be used to get additional properties of - the port. To do so, the host passes a NULL-terminated property array - with keys set to the desired properties and all other fields zeroed. - The plugin sets these fields appropriately if possible. The data - pointed to is owned by the plugin and only valid until the next call to - a method on this plugin (this mechanism is only meant for accessing - simple properties, such as buffer size). - - @param instance The plugin instance. - @param port The index of the port to return the type of. - @param properties Additional properties to get, or NULL. - @return The current type of the port. - */ - LV2_URID (*port_type)(LV2_Handle instance, - uint32_t port, - LV2_Morph_Property*const* properties); -} LV2_Morph_Interface; - -#ifdef __cplusplus -} /* extern "C" */ -#endif +#define LV2_MORPH__currentType LV2_MORPH_PREFIX "currentType" #endif /* LV2_MORPH_H */ diff --git a/lv2/lv2plug.in/ns/ext/morph/morph.ttl b/lv2/lv2plug.in/ns/ext/morph/morph.ttl index 09351b1..9457089 100644 --- a/lv2/lv2plug.in/ns/ext/morph/morph.ttl +++ b/lv2/lv2plug.in/ns/ext/morph/morph.ttl @@ -1,10 +1,11 @@ @prefix doap: <http://usefulinc.com/ns/doap#> . @prefix foaf: <http://xmlns.com/foaf/0.1/> . @prefix lv2: <http://lv2plug.in/ns/lv2core#> . +@prefix morph: <http://lv2plug.in/ns/ext/morph#> . +@prefix opts: <http://lv2plug.in/ns/ext/options#> . @prefix owl: <http://www.w3.org/2002/07/owl#> . @prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> . @prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . -@prefix morph: <http://lv2plug.in/ns/ext/morph#> . @prefix xsd: <http://www.w3.org/2001/XMLSchema#> . <http://lv2plug.in/ns/ext/morph> @@ -15,11 +16,14 @@ lv2:documentation """ <p>This extension defines two port types: morph:MorphPort, which has a host-configurable type, and morph:AutoMorphPort, which may automatically change -type when a MorphPort type is changed. These ports always have a default type -and work normally work in hosts that are unaware of this extension. Thus, this -extension provides a backwards compatibility mechanism which allows plugins to -use new port types but gracefully fall back to a default type in hosts that do -not support them.</p> +type when a MorphPort's type is changed. These ports always have a default +type and work normally work in hosts that are unaware of this extension. Thus, +this extension provides a backwards compatibility mechanism which allows +plugins to use new port types but gracefully fall back to a default type in +hosts that do not support them.</p> + +<p>This extension only defines port types and properties for describing morph +ports. The actual run-time switching is done via the opts:interface API.</p> """ . morph:MorphPort @@ -30,13 +34,12 @@ morph:MorphPort lv2:documentation """ <p>Ports of this type MUST have another type which defines the default buffer format (e.g. lv2:ControlPort) but can be dynamically changed to a different -type in hosts that support morph:interface.</p> +type in hosts that support opts:interface.</p> -<p>The host may change the type of a MorphPort by calling -LV2_Morph_Interface::morph_port(). If the plugin has any morph:AutoMorphPort +<p>The host may change the type of a MorphPort by setting its morph:currentType +with LV2_Options_Interface::set(). If the plugin has any morph:AutoMorphPort ports, the host MUST check their types after changing any port type since they -may have changed.</p> -""" . +may have changed.</p> """ . morph:AutoMorphPort a rdfs:Class , @@ -48,31 +51,36 @@ morph:AutoMorphPort format (e.g. lv2:ControlPort) but may dynamically change types based on the configured types of any morph:MorphPort ports on the same plugin instance.</p> -<p>The type of a port may only change in response to a call to -LV2_Morph_Interface::morph_port(), i.e. ports can only change type as a result -of an explicit host request. Whenever any port type on the instance changes, -the host MUST check the type of all morph:AutoMorphPort ports on the instance -before calling run() again, since they may have changed.</p> +<p>The type of a port may only change in response to a host call to +LV2_Options_Interface::set(). Whenever any port type on the instance changes, +the host MUST check the type of all morph:AutoMorphPort ports with +LV2_Options_Interface::get() before calling run() again, since they may have +changed. If the type of any port is zero, it means the current configuration +is invalid and the plugin may not be run (unless that port is +lv2:connectionOptional and connected to NULL).</p> <p>This is mainly useful for outputs whose type depends on the type of corresponding inputs.</p> """ . -morph:interface - a lv2:ExtensionData ; +morph:supportsType + a rdf:Property , + owl:ObjectProperty ; + rdfs:domain morph:MorphPort ; + rdfs:label "supports type" ; lv2:documentation """ -<p>The interface provided by the plugin to support morph ports. To support -this extension, the plugin must return a LV2_Morph_Interface from -LV2_Descriptor::extension_data() when it is called with this URI -(LV2_MORPH__interface).</p> +<p>Indicates that a port supports being switched to a certain type. A +MorphPort MUST list each type it supports being switched to in the plugin data +using this property.</p> """ . -morph:supportsType +morph:currentType a rdf:Property , + opts:Option , owl:ObjectProperty ; rdfs:domain morph:MorphPort ; - rdfs:label "supports type" ; + rdfs:label "current type" ; lv2:documentation """ -<p>Indicates that a port supports being switched to a certain type via -morph:interface.</p> +<p>The currently active type of the port. This is for dynamic use as an option +and SHOULD NOT be listed in the static plugin data.</p> """ . |