From 1af0fb6261e4dbce0a90cbb4dc6f252a85995c64 Mon Sep 17 00:00:00 2001
From: Stefano D'Angelo <stefano.dangelo@orastron.com>
Date: Mon, 20 Jan 2025 11:55:09 +0100
Subject: [PATCH] api: conditionally define callbacks

---
 templates/api/src/plugin_api.h | 4 ++++
 templates/lv2/src/lv2.c        | 9 +--------
 2 files changed, 5 insertions(+), 8 deletions(-)

diff --git a/templates/api/src/plugin_api.h b/templates/api/src/plugin_api.h
index 327db47..2a62362 100644
--- a/templates/api/src/plugin_api.h
+++ b/templates/api/src/plugin_api.h
@@ -26,10 +26,14 @@ typedef struct {
 	const char *	format;
 	const char * (*get_bindir)(void *handle);
 	const char * (*get_datadir)(void *handle);
+{{?it.product.state && it.product.state.dspCustom}}
 	int (*write_state)(void *handle, const char *data, size_t length);
+{{?it.product.parameters.find(x => x.direction == "input")}}
 	void (*load_parameter)(void *handle, size_t index, float value);
+{{?}}
 	void (*lock_state)(void *handle);
 	void (*unlock_state)(void *handle);
+{{?}}
 } plugin_callbacks;
 
 typedef struct {
diff --git a/templates/lv2/src/lv2.c b/templates/lv2/src/lv2.c
index 1355e3e..72109d1 100644
--- a/templates/lv2/src/lv2.c
+++ b/templates/lv2/src/lv2.c
@@ -212,16 +212,9 @@ static LV2_Handle instantiate(const struct LV2_Descriptor * descriptor, double s
 		/* .write_state		= */ write_state_cb,
 #  if DATA_PRODUCT_CONTROL_INPUTS_N > 0
 		/* .load_parameter	= */ load_parameter_cb,
-#  else
-		/* .load_parameter	= */ NULL,
 #  endif
 		/* .lock_state		= */ lock_state_cb,
-		/* .unlock_state	= */ unlock_state_cb
-# else
-		/* .write_state		= */ NULL,
-		/* .load_parameter	= */ NULL,
-		/* .state_lock		= */ NULL,
-		/* .state_unlock	= */ NULL
+		/* .unlock_state	= */ unlock_state_cb,
 # endif
 	};
 	plugin_init(&instance->p, &cbs);