clap

commit 43c15386f033c8bbdc3c4fb2e3b3a525482302c1
parent c541c44750661c40cb9a01c148eec5be323e1b92
Author: Alexandre BIQUE <bique.alexandre@gmail.com>
Date:   Sun, 30 Jan 2022 18:02:47 +0100

Add tail

Fixes #33

Diffstat:
A
include/clap/ext/tail.h
 | 
29
+++++++++++++++++++++++++++++
M
include/clap/process.h
 | 
4
++++

2 files changed, 33 insertions(+), 0 deletions(-)
diff --git a/include/clap/ext/tail.h b/include/clap/ext/tail.h
@@ -0,0 +1,29 @@
+#pragma once
+
+#include "../plugin.h"
+
+static CLAP_CONSTEXPR const char CLAP_EXT_TAIL[] = "clap.tail";
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#pragma pack(push, CLAP_ALIGN)
+
+typedef struct clap_plugin_tail {
+   // Returns tail length in samples.
+   // [main-thread,audio-thread]
+   uint32_t (*get)(const clap_plugin_t *plugin);
+} clap_plugin_tail_t;
+
+typedef struct clap_host_tail {
+   // Tell the host that the tail has changed.
+   // [audio-thread]
+   void (*changed)(const clap_host_t *host);
+} clap_host_tail_t;
+
+#pragma pack(pop)
+
+#ifdef __cplusplus
+}
+#endif
diff --git a/include/clap/process.h b/include/clap/process.h
@@ -21,6 +21,10 @@ enum {
    // Processing succeed, keep processing if the output is not quiet.
    CLAP_PROCESS_CONTINUE_IF_NOT_QUIET = 2,
 
+   // Rely upon the plugin's tail to determine if the plugin should continue to process.
+   // see clap_plugin_tail
+   CLAP_PROCESS_TAIL,
+
    // Processing succeed, but no more processing is required,
    // until next event or variation in audio input.
    CLAP_PROCESS_SLEEP = 3,