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Implement LV2 Inline Display Extension

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This commit is contained in:
Robin Gareus 2016-03-13 23:52:48 +01:00
parent 58469214be
commit c32824e452
4 changed files with 66 additions and 1 deletions
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50
libs/ardour/lv2_plugin.cc
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@ -216,6 +216,14 @@ work_respond(LV2_Worker_Respond_Handle handle,
}
}
/* inline display extension */
static void
queue_draw (LV2_Inline_Display_Handle handle)
{
LV2Plugin* plugin = (LV2Plugin*)handle;
plugin->QueueDraw(); /* EMIT SIGNAL */
}
/* log extension */
static int
@ -259,6 +267,9 @@ struct LV2Plugin::Impl {
, block_length(0)
#ifdef HAVE_LV2_1_2_0
, options(0)
#endif
#ifdef LV2_EXTENDED
, queue_draw(0)
#endif
{}
@ -284,6 +295,9 @@ struct LV2Plugin::Impl {
#ifdef HAVE_LV2_1_2_0
LV2_Options_Option* options;
#endif
#ifdef LV2_EXTENDED
LV2_Inline_Display* queue_draw;
#endif
};
LV2Plugin::LV2Plugin (AudioEngine& engine,
@ -371,7 +385,7 @@ LV2Plugin::init(const void* c_plugin, framecnt_t rate)
lilv_node_free(state_uri);
lilv_node_free(state_iface_uri);
_features = (LV2_Feature**)calloc(11, sizeof(LV2_Feature*));
_features = (LV2_Feature**)calloc(12, sizeof(LV2_Feature*));
_features[0] = &_instance_access_feature;
_features[1] = &_data_access_feature;
_features[2] = &_make_path_feature;
@ -388,6 +402,17 @@ LV2Plugin::init(const void* c_plugin, framecnt_t rate)
lv2_atom_forge_init(&_impl->forge, _uri_map.urid_map());
lv2_atom_forge_init(&_impl->ui_forge, _uri_map.urid_map());
#ifdef LV2_EXTENDED
_impl->queue_draw = (LV2_Inline_Display*)
malloc (sizeof(LV2_Inline_Display));
_impl->queue_draw->handle = this;
_impl->queue_draw->queue_draw = queue_draw;
_queue_draw_feature.URI = LV2_INLINEDISPLAY__queue_draw;
_queue_draw_feature.data = _impl->queue_draw;
_features[n_features++] = &_queue_draw_feature;
#endif
#ifdef HAVE_LV2_1_2_0
LV2_URID atom_Int = _uri_map.uri_to_id(LV2_ATOM__Int);
static const int32_t _min_block_length = 1; // may happen during split-cycles
@ -474,6 +499,11 @@ LV2Plugin::init(const void* c_plugin, framecnt_t rate)
lilv_node_free(options_iface_uri);
#endif
#ifdef LV2_EXTENDED
_display_interface = (const LV2_Inline_Display_Interface*)
extension_data (LV2_INLINEDISPLAY__interface);
#endif
if (lilv_plugin_has_feature(plugin, _world.lv2_inPlaceBroken)) {
error << string_compose(
_("LV2: \"%1\" cannot be used, since it cannot do inplace processing."),
@ -765,6 +795,9 @@ LV2Plugin::~LV2Plugin ()
#ifdef HAVE_LV2_1_2_0
free(_impl->options);
#endif
#ifdef LV2_EXTENDED
free(_impl->queue_draw);
#endif
free(_features);
free(_make_path_feature.data);
@ -827,6 +860,21 @@ LV2Plugin::ui_is_resizable () const
return !fs_matches && !nrs_matches;
}
#ifdef LV2_EXTENDED
bool
LV2Plugin::has_inline_display () {
return _display_interface ? true : false;
}
void*
LV2Plugin::render_inline_display (uint32_t w, uint32_t h) {
if (_display_interface) {
return _display_interface->render ((void*)_impl->instance->lv2_handle, w, h);
}
return NULL;
}
#endif
string
LV2Plugin::unique_id() const
{