From 68a5c369d8844da98ac735f5158c2c66cd7f39ed Mon Sep 17 00:00:00 2001
From: David Robillard <d@drobilla.net>
Date: Wed, 29 Feb 2012 03:16:10 +0000
Subject: Simplify atom:AtomPort buffers to point directly at Atoms.

---
 plugins/eg-sampler.lv2/sampler.c | 29 +++++++++++++++++------------
 plugins/eg-sampler.lv2/uris.h    |  2 ++
 2 files changed, 19 insertions(+), 12 deletions(-)

(limited to 'plugins')

diff --git a/plugins/eg-sampler.lv2/sampler.c b/plugins/eg-sampler.lv2/sampler.c
index b7851cc..e141aeb 100644
--- a/plugins/eg-sampler.lv2/sampler.c
+++ b/plugins/eg-sampler.lv2/sampler.c
@@ -87,9 +87,9 @@ typedef struct {
 	Sample* sample;
 
 	/* Ports */
-	float*                output_port;
-	LV2_Atom_Port_Buffer* control_port;
-	LV2_Atom_Port_Buffer* notify_port;
+	float*             output_port;
+	LV2_Atom_Sequence* control_port;
+	LV2_Atom_Sequence* notify_port;
 
 	/* URIs */
 	SamplerURIs uris;
@@ -218,10 +218,10 @@ connect_port(LV2_Handle instance,
 
 	switch (port) {
 	case SAMPLER_CONTROL:
-		plugin->control_port = (LV2_Atom_Port_Buffer*)data;
+		plugin->control_port = (LV2_Atom_Sequence*)data;
 		break;
 	case SAMPLER_RESPONSE:
-		plugin->notify_port = (LV2_Atom_Port_Buffer*)data;
+		plugin->notify_port = (LV2_Atom_Sequence*)data;
 		break;
 	case SAMPLER_OUT:
 		plugin->output_port = (float*)data;
@@ -329,7 +329,7 @@ run(LV2_Handle instance,
 	float*       output      = plugin->output_port;
 
 	/* Read incoming events */
-	LV2_SEQUENCE_FOREACH((LV2_Atom_Sequence*)plugin->control_port->data, i) {
+	LV2_SEQUENCE_FOREACH(plugin->control_port, i) {
 		LV2_Atom_Event* const ev = lv2_sequence_iter_get(i);
 		if (ev->body.type == uris->midi_Event) {
 			uint8_t* const data = (uint8_t* const)(ev + 1);
@@ -382,13 +382,18 @@ run(LV2_Handle instance,
 	}
 
 	/* Set up forge to write directly to notify output port buffer */
-	LV2_Atom* seq = plugin->notify_port->data;
+	const uint32_t notify_capacity = plugin->notify_port->atom.size;
+
+	LV2_Atom_Sequence* seq = (LV2_Atom_Sequence*)plugin->notify_port;
+	seq->atom.type = uris->atom_Sequence;
+	seq->atom.size = seq->body.unit = seq->body.pad = 0;
+
+	lv2_atom_forge_set_buffer(&plugin->forge,
+	                          LV2_ATOM_CONTENTS(LV2_Atom_Sequence, seq),
+	                          notify_capacity);
+
 	LV2_Atom_Forge_Frame seq_frame;
-	lv2_atom_forge_push(&plugin->forge, &seq_frame, seq);
-	lv2_atom_forge_set_buffer(
-		&plugin->forge,
-		LV2_ATOM_CONTENTS(LV2_Atom_Sequence, seq),
-		plugin->notify_port->capacity);
+	lv2_atom_forge_push(&plugin->forge, &seq_frame, &seq->atom);
 
 	/* Read messages from worker thread */
 	SampleMessage  m;
diff --git a/plugins/eg-sampler.lv2/uris.h b/plugins/eg-sampler.lv2/uris.h
index 8d0a983..cec1700 100644
--- a/plugins/eg-sampler.lv2/uris.h
+++ b/plugins/eg-sampler.lv2/uris.h
@@ -31,6 +31,7 @@ typedef struct {
 	LV2_URID atom_Blank;
 	LV2_URID atom_Path;
 	LV2_URID atom_Resource;
+	LV2_URID atom_Sequence;
 	LV2_URID atom_eventTransfer;
 	LV2_URID eg_applySample;
 	LV2_URID eg_file;
@@ -46,6 +47,7 @@ map_sampler_uris(LV2_URID_Map* map, SamplerURIs* uris)
 	uris->atom_Blank         = map->map(map->handle, LV2_ATOM__Blank);
 	uris->atom_Path          = map->map(map->handle, LV2_ATOM__Path);
 	uris->atom_Resource      = map->map(map->handle, LV2_ATOM__Resource);
+	uris->atom_Sequence      = map->map(map->handle, LV2_ATOM__Sequence);
 	uris->atom_eventTransfer = map->map(map->handle, LV2_ATOM__eventTransfer);
 	uris->eg_applySample     = map->map(map->handle, EG_SAMPLER__applySample);
 	uris->eg_file            = map->map(map->handle, EG_SAMPLER__file);
-- 
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