Update backend API: read-only MIDI input buffers

10 files changed, 10 insertions, 10 deletions

diff --git a/libs/backends/alsa/alsa_audiobackend.cc b/libs/backends/alsa/alsa_audiobackend.cc
index 95b95112d6..9d3dc96f43 100644
--- a/libs/backends/alsa/alsa_audiobackend.cc
+++ b/libs/backends/alsa/alsa_audiobackend.cc
@@ -1685,7 +1685,7 @@ AlsaAudioBackend::get_connections (PortEngine::PortHandle port, std::vector<std:
 int
 AlsaAudioBackend::midi_event_get (
 		pframes_t& timestamp,
-		size_t& size, uint8_t** buf, void* port_buffer,
+		size_t& size, uint8_t const** buf, void* port_buffer,
 		uint32_t event_index)
 {
 	assert (buf && port_buffer);
diff --git a/libs/backends/alsa/alsa_audiobackend.h b/libs/backends/alsa/alsa_audiobackend.h
index bc2620ed9e..97cba16ba5 100644
--- a/libs/backends/alsa/alsa_audiobackend.h
+++ b/libs/backends/alsa/alsa_audiobackend.h
@@ -291,7 +291,7 @@ class AlsaAudioBackend : public AudioBackend {
 		int  get_connections (PortHandle, std::vector<std::string>&, bool process_callback_safe);
 
 		/* MIDI */
-		int midi_event_get (pframes_t& timestamp, size_t& size, uint8_t** buf, void* port_buffer, uint32_t event_index);
+		int midi_event_get (pframes_t& timestamp, size_t& size, uint8_t const** buf, void* port_buffer, uint32_t event_index);
 		int midi_event_put (void* port_buffer, pframes_t timestamp, const uint8_t* buffer, size_t size);
 		uint32_t get_midi_event_count (void* port_buffer);
 		void     midi_clear (void* port_buffer);
diff --git a/libs/backends/coreaudio/coreaudio_backend.cc b/libs/backends/coreaudio/coreaudio_backend.cc
index 9e295662f7..060c7b5db3 100644
--- a/libs/backends/coreaudio/coreaudio_backend.cc
+++ b/libs/backends/coreaudio/coreaudio_backend.cc
@@ -1407,7 +1407,7 @@ CoreAudioBackend::get_connections (PortEngine::PortHandle port, std::vector<std:
 int
 CoreAudioBackend::midi_event_get (
 	pframes_t& timestamp,
-	size_t& size, uint8_t** buf, void* port_buffer,
+	size_t& size, uint8_t const** buf, void* port_buffer,
 	uint32_t event_index)
 {
 	if (!buf || !port_buffer) return -1;
diff --git a/libs/backends/coreaudio/coreaudio_backend.h b/libs/backends/coreaudio/coreaudio_backend.h
index 03edf4f6ed..1a302bc749 100644
--- a/libs/backends/coreaudio/coreaudio_backend.h
+++ b/libs/backends/coreaudio/coreaudio_backend.h
@@ -352,7 +352,7 @@ class CoreAudioBackend : public AudioBackend {
 	int  get_connections (PortHandle, std::vector<std::string>&, bool process_callback_safe);
 
 	/* MIDI */
-	int midi_event_get (pframes_t& timestamp, size_t& size, uint8_t** buf, void* port_buffer, uint32_t event_index);
+	int midi_event_get (pframes_t& timestamp, size_t& size, uint8_t const** buf, void* port_buffer, uint32_t event_index);
 	int midi_event_put (void* port_buffer, pframes_t timestamp, const uint8_t* buffer, size_t size) {
 		return _midi_event_put (port_buffer, timestamp, buffer, size);
 	}
diff --git a/libs/backends/dummy/dummy_audiobackend.cc b/libs/backends/dummy/dummy_audiobackend.cc
index 9d33d96636..692cdc3e08 100644
--- a/libs/backends/dummy/dummy_audiobackend.cc
+++ b/libs/backends/dummy/dummy_audiobackend.cc
@@ -1082,7 +1082,7 @@ DummyAudioBackend::get_connections (PortEngine::PortHandle port, std::vector<std
 int
 DummyAudioBackend::midi_event_get (
 		pframes_t& timestamp,
-		size_t& size, uint8_t** buf, void* port_buffer,
+		size_t& size, uint8_t const** buf, void* port_buffer,
 		uint32_t event_index)
 {
 	assert (buf && port_buffer);
diff --git a/libs/backends/dummy/dummy_audiobackend.h b/libs/backends/dummy/dummy_audiobackend.h
index 4087cedc49..f009fba59c 100644
--- a/libs/backends/dummy/dummy_audiobackend.h
+++ b/libs/backends/dummy/dummy_audiobackend.h
@@ -360,7 +360,7 @@ class DummyAudioBackend : public AudioBackend {
 		int  get_connections (PortHandle, std::vector<std::string>&, bool process_callback_safe);
 
 		/* MIDI */
-		int midi_event_get (pframes_t& timestamp, size_t& size, uint8_t** buf, void* port_buffer, uint32_t event_index);
+		int midi_event_get (pframes_t& timestamp, size_t& size, uint8_t const** buf, void* port_buffer, uint32_t event_index);
 		int midi_event_put (void* port_buffer, pframes_t timestamp, const uint8_t* buffer, size_t size);
 		uint32_t get_midi_event_count (void* port_buffer);
 		void     midi_clear (void* port_buffer);
diff --git a/libs/backends/jack/jack_audiobackend.h b/libs/backends/jack/jack_audiobackend.h
index 847b21b767..2c67dc72fd 100644
--- a/libs/backends/jack/jack_audiobackend.h
+++ b/libs/backends/jack/jack_audiobackend.h
@@ -175,7 +175,7 @@ class JACKAudioBackend : public AudioBackend {
 	return true;
     }
 
-    int      midi_event_get (pframes_t& timestamp, size_t& size, uint8_t** buf, void* port_buffer, uint32_t event_index);
+    int      midi_event_get (pframes_t& timestamp, size_t& size, uint8_t const** buf, void* port_buffer, uint32_t event_index);
     int      midi_event_put (void* port_buffer, pframes_t timestamp, const uint8_t* buffer, size_t size);
     uint32_t get_midi_event_count (void* port_buffer);
     void     midi_clear (void* port_buffer);
diff --git a/libs/backends/jack/jack_portengine.cc b/libs/backends/jack/jack_portengine.cc
index a73f4608aa..dfa2bdad11 100644
--- a/libs/backends/jack/jack_portengine.cc
+++ b/libs/backends/jack/jack_portengine.cc
@@ -488,7 +488,7 @@ JACKAudioBackend::disconnect_all (PortHandle port)
 }
 
 int
-JACKAudioBackend::midi_event_get (pframes_t& timestamp, size_t& size, uint8_t** buf, void* port_buffer, uint32_t event_index)
+JACKAudioBackend::midi_event_get (pframes_t& timestamp, size_t& size, uint8_t const** buf, void* port_buffer, uint32_t event_index)
 {
 	jack_midi_event_t ev;
 	int ret;
diff --git a/libs/backends/portaudio/portaudio_backend.cc b/libs/backends/portaudio/portaudio_backend.cc
index d6607595f0..3ce0f094ac 100644
--- a/libs/backends/portaudio/portaudio_backend.cc
+++ b/libs/backends/portaudio/portaudio_backend.cc
@@ -1610,7 +1610,7 @@ PortAudioBackend::get_connections (PortEngine::PortHandle port, std::vector<std:
 int
 PortAudioBackend::midi_event_get (
 		pframes_t& timestamp,
-		size_t& size, uint8_t** buf, void* port_buffer,
+		size_t& size, uint8_t const** buf, void* port_buffer,
 		uint32_t event_index)
 {
 	if (!buf || !port_buffer) return -1;
diff --git a/libs/backends/portaudio/portaudio_backend.h b/libs/backends/portaudio/portaudio_backend.h
index 601c3433cb..34bdabe787 100644
--- a/libs/backends/portaudio/portaudio_backend.h
+++ b/libs/backends/portaudio/portaudio_backend.h
@@ -288,7 +288,7 @@ class PortAudioBackend : public AudioBackend {
 		int  get_connections (PortHandle, std::vector<std::string>&, bool process_callback_safe);
 
 		/* MIDI */
-		int midi_event_get (pframes_t& timestamp, size_t& size, uint8_t** buf, void* port_buffer, uint32_t event_index);
+		int midi_event_get (pframes_t& timestamp, size_t& size, uint8_t const** buf, void* port_buffer, uint32_t event_index);
 		int midi_event_put (void* port_buffer, pframes_t timestamp, const uint8_t* buffer, size_t size);
 		uint32_t get_midi_event_count (void* port_buffer);
 		void     midi_clear (void* port_buffer);