ardour/livetrax
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Expose HW concurrency to LV2 plugins

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This commit is contained in:
Robin Gareus 2024-05-01 03:51:42 +02:00
parent 2ccda116c7
commit b9da1a5bd5
Signed by: rgareus
GPG Key ID: A090BCE02CF57F04
1 changed files with 3 additions and 0 deletions
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3
libs/ardour/lv2_plugin.cc
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@ -610,6 +610,7 @@ LV2Plugin::init(const void* c_plugin, samplecnt_t rate)
static const int32_t _max_block_length = 8192; // max possible (with all engines and during export)
static const int32_t rt_policy = PBD_SCHED_FIFO;
static const int32_t rt_priority = pbd_absolute_rt_priority (PBD_SCHED_FIFO, AudioEngine::instance()->client_real_time_priority () - 1);
static const int32_t hw_concurrency = how_many_dsp_threads ();
/* Consider updating max-block-size whenever the buffersize changes.
* It requires re-instantiating the plugin (which is a non-realtime operation),
* so it should be done lightly and only for plugins that require it.
@ -632,6 +633,8 @@ LV2Plugin::init(const void* c_plugin, samplecnt_t rate)
sizeof(int32_t), atom_Int, &rt_policy },
{ LV2_OPTIONS_INSTANCE, 0, _uri_map.uri_to_id("http://ardour.org/lv2/threads/#schedPriority"),
sizeof(int32_t), atom_Int, &rt_priority },
{ LV2_OPTIONS_INSTANCE, 0, _uri_map.uri_to_id("http://ardour.org/lv2/threads/#concurrency"),
sizeof(int32_t), atom_Int, &hw_concurrency },
{ LV2_OPTIONS_INSTANCE, 0, _uri_map.uri_to_id("http://lv2plug.in/ns/extensions/ui#backgroundColor"),
sizeof(int32_t), atom_Int, &_ui_background_color },
{ LV2_OPTIONS_INSTANCE, 0, _uri_map.uri_to_id("http://lv2plug.in/ns/extensions/ui#foregroundColor"),