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authorDavid Robillard <d@drobilla.net>2013-03-19 02:46:10 +0000
committerDavid Robillard <d@drobilla.net>2013-03-19 02:46:10 +0000
commita6acef5894a5086cb9e8952e245bcf959b374f50 (patch)
tree4608f27a421a09034f52ed89450d8992fe67d9fc /lv2
parent68ab5ac516f893fe5366c172599ca4b688ca286a (diff)
downloadlv2-a6acef5894a5086cb9e8952e245bcf959b374f50.tar.xz
Add UI idle interface.
Diffstat (limited to 'lv2')
-rw-r--r--lv2/lv2plug.in/ns/extensions/ui/lv2-ui.doap.ttl8
-rw-r--r--lv2/lv2plug.in/ns/extensions/ui/manifest.ttl2
-rw-r--r--lv2/lv2plug.in/ns/extensions/ui/ui.h19
-rw-r--r--lv2/lv2plug.in/ns/extensions/ui/ui.ttl14
4 files changed, 42 insertions, 1 deletions
diff --git a/lv2/lv2plug.in/ns/extensions/ui/lv2-ui.doap.ttl b/lv2/lv2plug.in/ns/extensions/ui/lv2-ui.doap.ttl
index 3dbabeb..8d5a81d 100644
--- a/lv2/lv2plug.in/ns/extensions/ui/lv2-ui.doap.ttl
+++ b/lv2/lv2plug.in/ns/extensions/ui/lv2-ui.doap.ttl
@@ -13,6 +13,14 @@
doap:developer <http://lv2plug.in/ns/meta#larsl> ;
doap:maintainer <http://drobilla.net/drobilla#me> ;
doap:release [
+ doap:revision "2.13" ;
+ doap:created "2013-03-18" ;
+ dcs:changeset [
+ dcs:item [
+ rdfs:label "Add idle interface so native UIs and foreign toolkits can drive their event loops."
+ ]
+ ]
+ ] , [
doap:revision "2.12" ;
doap:created "2012-12-01" ;
doap:file-release <http://lv2plug.in/spec/lv2-1.4.0.tar.bz2> ;
diff --git a/lv2/lv2plug.in/ns/extensions/ui/manifest.ttl b/lv2/lv2plug.in/ns/extensions/ui/manifest.ttl
index 404cbb4..3071a59 100644
--- a/lv2/lv2plug.in/ns/extensions/ui/manifest.ttl
+++ b/lv2/lv2plug.in/ns/extensions/ui/manifest.ttl
@@ -4,5 +4,5 @@
<http://lv2plug.in/ns/extensions/ui>
a lv2:Specification ;
lv2:minorVersion 2 ;
- lv2:microVersion 12 ;
+ lv2:microVersion 13 ;
rdfs:seeAlso <ui.ttl> . \ No newline at end of file
diff --git a/lv2/lv2plug.in/ns/extensions/ui/ui.h b/lv2/lv2plug.in/ns/extensions/ui/ui.h
index 62f4c93..2a9b28a 100644
--- a/lv2/lv2plug.in/ns/extensions/ui/ui.h
+++ b/lv2/lv2plug.in/ns/extensions/ui/ui.h
@@ -41,6 +41,7 @@
#define LV2_UI__X11UI LV2_UI_PREFIX "X11UI"
#define LV2_UI__binary LV2_UI_PREFIX "binary"
#define LV2_UI__fixedSize LV2_UI_PREFIX "fixedSize"
+#define LV2_UI__idleInterface LV2_UI_PREFIX "idleInterface"
#define LV2_UI__noUserResize LV2_UI_PREFIX "noUserResize"
#define LV2_UI__notifyType LV2_UI_PREFIX "notifyType"
#define LV2_UI__parent LV2_UI_PREFIX "parent"
@@ -338,6 +339,24 @@ typedef struct _LV2UI_Touch {
} LV2UI_Touch;
/**
+ UI Idle Feature (LV2_UI__idle)
+
+ This feature is an addition to the UI API that provides a callback for the
+ host to call rapidly, e.g. to drive the idle callback of a toolkit.
+*/
+typedef struct _LV2UI_Idle_Interface {
+ /**
+ Run a single iteration of the UI's idle loop.
+
+ This will be called "frequently" in the UI thread at a rate appropriate
+ for a toolkit main loop. There are no precise timing guarantees.
+
+ @return 0 on success, or anything else to stop being called.
+ */
+ int (*idle)(LV2UI_Handle ui);
+} LV2UI_Idle_Interface;
+
+/**
Peak data for a slice of time, the update format for ui:peakProtocol.
*/
typedef struct _LV2UI_Peak_Data {
diff --git a/lv2/lv2plug.in/ns/extensions/ui/ui.ttl b/lv2/lv2plug.in/ns/extensions/ui/ui.ttl
index 84a9761..70cc93f 100644
--- a/lv2/lv2plug.in/ns/extensions/ui/ui.ttl
+++ b/lv2/lv2plug.in/ns/extensions/ui/ui.ttl
@@ -316,6 +316,20 @@ plugin UI. This feature corresponds to the LV2UI_Touch struct, which
should be passed with the URI LV2_UI__touch.</p>
""" .
+ui:idleInterace
+ a lv2:Feature ,
+ lv2:ExtensionData ;
+ lv2:documentation """
+<p>A feature that provides a callback for the host to call rapidly to drive the
+UI. To support this feature, the UI should list it as a lv2:optionalFeature or
+lv2:requiredFeature in its data, and also as lv2:extensionData. When the UI's
+extension_data() is called with this URI (LV2_UI__idleInterface), it should
+return a pointer to an LV2_UI_Idle_Interface.</p>
+
+<p>To indicate support, the host should pass a feature to instantiate() with
+this URI, with NULL for data.</p>
+""" .
+
ui:protocol
a rdf:Property ;
rdfs:domain ui:PortNotification ;