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atsushienoatsushieno
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Add C API.
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4 files changed

+254
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‎Makefile.am

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@@ -2,4 +2,6 @@ lib_LTLIBRARIES = %D%/librtmidi.la
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%C%_librtmidi_la_LDFLAGS = -no-undefined
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%C%_librtmidi_la_SOURCES = \
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%D%/RtMidi.cpp \
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%D%/RtMidi.h
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%D%/RtMidi.h \
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%D%/rtmidi_c.cpp \
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%D%/rtmidi_c.h

‎msw/rtmidilib.vcproj

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@@ -151,6 +151,10 @@
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RelativePath="..\RtMidi.cpp"
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>
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</File>
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<File
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RelativePath="..\rtmidi_c.cpp"
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>
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</File>
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</Filter>
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<Filter
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Name="Header Files"
@@ -165,6 +169,10 @@
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RelativePath="..\RtMidi.h"
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>
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</File>
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<File
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RelativePath="..\rtmidi_c.h"
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>
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</File>
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</Filter>
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<Filter
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Name="Resource Files"

‎rtmidi_c.cpp

Lines changed: 177 additions & 0 deletions
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@@ -0,0 +1,177 @@
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#include <string.h>
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#include <stdlib.h>
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#include "rtmidi_c.h"
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#include "RtMidi.h"
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/* misc */
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int rtmidi_sizeof_rtmidi_api ()
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{
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return sizeof (RtMidiApi);
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}
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/* RtMidi API */
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int rtmidi_get_compiled_api (enum RtMidiApi **apis) // return length for NULL argument.
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{
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if (!apis || !(*apis)) {
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std::vector<RtMidi::Api> *v = new std::vector<RtMidi::Api> ();
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try {
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RtMidi::getCompiledApi (*v);
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int size = v->size ();
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delete v;
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return size;
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} catch (...) {
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return -1;
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}
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} else {
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try {
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std::vector<RtMidi::Api> *v = new std::vector<RtMidi::Api> ();
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RtMidi::getCompiledApi (*v);
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for (unsigned int i = 0; i < v->size (); i++)
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(*apis) [i] = (RtMidiApi) v->at (i);
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delete v;
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return 0;
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} catch (...) {
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return -1;
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}
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}
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}
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void rtmidi_error (MidiApi *api, enum RtMidiErrorType type, const char* errorString)
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{
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std::string msg = errorString;
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api->error ((RtMidiError::Type) type, msg);
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}
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void rtmidi_open_port (RtMidiPtr device, unsigned int portNumber, const char *portName)
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{
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std::string name = portName;
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((RtMidi*) device)->openPort (portNumber, name);
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}
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void rtmidi_open_virtual_port (RtMidiPtr device, const char *portName)
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{
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std::string name = portName;
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((RtMidi*) device)->openVirtualPort (name);
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}
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void rtmidi_close_port (RtMidiPtr device)
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{
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((RtMidi*) device)->closePort ();
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}
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unsigned int rtmidi_get_port_count (RtMidiPtr device)
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{
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return ((RtMidi*) device)->getPortCount ();
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}
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const char* rtmidi_get_port_name (RtMidiPtr device, unsigned int portNumber)
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{
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std::string name = ((RtMidi*) device)->getPortName (portNumber);
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return name.c_str ();
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}
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/* RtMidiIn API */
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RtMidiInPtr rtmidi_in_create_default ()
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{
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return new RtMidiIn ();
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}
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RtMidiInPtr rtmidi_in_create (enum RtMidiApi api, const char *clientName, unsigned int queueSizeLimit)
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{
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std::string name = clientName;
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return new RtMidiIn ((RtMidi::Api) api, name, queueSizeLimit);
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}
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void rtmidi_in_free (RtMidiInPtr device)
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{
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delete (RtMidiIn*) device;
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}
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enum RtMidiApi rtmidi_in_get_current_api (RtMidiPtr device)
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{
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return (RtMidiApi) ((RtMidiIn*) device)->getCurrentApi ();
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}
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class CallbackProxyUserData
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{
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public:
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CallbackProxyUserData (RtMidiCCallback cCallback, void *userData)
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: c_callback (cCallback), user_data (userData)
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{
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}
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RtMidiCCallback c_callback;
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void *user_data;
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};
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void callback_proxy (double timeStamp, std::vector<unsigned char> *message, void *userData)
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{
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CallbackProxyUserData* data = reinterpret_cast<CallbackProxyUserData*> (userData);
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data->c_callback (timeStamp, message->data (), data->user_data);
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}
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void rtmidi_in_set_callback (RtMidiInPtr device, RtMidiCCallback callback, void *userData)
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{
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void *data = (void *) new CallbackProxyUserData (callback, userData);
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((RtMidiIn*) device)->setCallback (callback_proxy, data);
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}
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void rtmidi_in_cancel_callback (RtMidiInPtr device)
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{
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((RtMidiIn*) device)->cancelCallback ();
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}
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void rtmidi_in_ignore_types (RtMidiInPtr device, bool midiSysex, bool midiTime, bool midiSense)
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{
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((RtMidiIn*) device)->ignoreTypes (midiSysex, midiTime, midiSense);
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}
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double rtmidi_in_get_message (RtMidiInPtr device, unsigned char **message)
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{
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try {
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// FIXME: use allocator to achieve efficient buffering
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std::vector<unsigned char> *v = new std::vector<unsigned char> ();
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double ret = ((RtMidiIn*) device)->getMessage (v);
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*message = (unsigned char *) malloc ((int) ret);
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memcpy (*message, v->data (), (int) ret);
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delete v;
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return ret;
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} catch (...) {
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return -1;
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}
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}
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/* RtMidiOut API */
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RtMidiOutPtr rtmidi_out_create_default ()
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{
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return new RtMidiOut ();
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}
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RtMidiOutPtr rtmidi_out_create (enum RtMidiApi api, const char *clientName)
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{
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std::string name = clientName;
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return new RtMidiOut ((RtMidi::Api) api, name);
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}
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void rtmidi_out_free (RtMidiOutPtr device)
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{
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delete (RtMidiOut*) device;
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}
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enum RtMidiApi rtmidi_out_get_current_api (RtMidiPtr device)
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{
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return (RtMidiApi) ((RtMidiOut*) device)->getCurrentApi ();
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}
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int rtmidi_out_send_message (RtMidiOutPtr device, const unsigned char *message, int length)
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{
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try {
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// FIXME: use allocator to achieve efficient buffering
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std::vector<unsigned char> *v = new std::vector<unsigned char> (length);
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memcpy (v->data (), message, length);
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((RtMidiOut*) device)->sendMessage (v);
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delete v;
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return 0;
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} catch (...) {
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return -1;
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}
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}

‎rtmidi_c.h

Lines changed: 66 additions & 0 deletions
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@@ -0,0 +1,66 @@
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#include <stdbool.h>
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#ifndef RTMIDI_C_H
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#define RTMIDI_C_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef void* RtMidiPtr;
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typedef void* RtMidiInPtr;
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typedef void* RtMidiOutPtr;
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enum RtMidiApi {
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RT_MIDI_API_UNSPECIFIED, /*!< Search for a working compiled API. */
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RT_MIDI_API_MACOSX_CORE, /*!< Macintosh OS-X Core Midi API. */
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RT_MIDI_API_LINUX_ALSA, /*!< The Advanced Linux Sound Architecture API. */
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RT_MIDI_API_UNIX_JACK, /*!< The Jack Low-Latency MIDI Server API. */
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RT_MIDI_API_WINDOWS_MM, /*!< The Microsoft Multimedia MIDI API. */
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RT_MIDI_API_WINDOWS_KS, /*!< The Microsoft Kernel Streaming MIDI API. */
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RT_MIDI_API_RTMIDI_DUMMY /*!< A compilable but non-functional API. */
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};
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enum RtMidiErrorType {
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RT_ERROR_WARNING, RT_ERROR_DEBUG_WARNING, RT_ERROR_UNSPECIFIED, RT_ERROR_NO_DEVICES_FOUND,
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RT_ERROR_INVALID_DEVICE, RT_ERROR_MEMORY_ERROR, RT_ERROR_INVALID_PARAMETER, RT_ERROR_INVALID_USE,
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RT_ERROR_DRIVER_ERROR, RT_ERROR_SYSTEM_ERROR, RT_ERROR_THREAD_ERROR
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};
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typedef void(* RtMidiCCallback) (double timeStamp, const unsigned char* message, void *userData);
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int rtmidi_sizeof_rtmidi_api ();
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/* RtMidi API */
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int rtmidi_get_compiled_api (enum RtMidiApi **apis); // return length for NULL argument.
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void rtmidi_error (enum RtMidiErrorType type, const char* errorString);
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void rtmidi_open_port (RtMidiPtr device, unsigned int portNumber, const char *portName);
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void rtmidi_open_virtual_port (RtMidiPtr device, const char *portName);
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void rtmidi_close_port (RtMidiPtr device);
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unsigned int rtmidi_get_port_count (RtMidiPtr device);
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const char* rtmidi_get_port_name (RtMidiPtr device, unsigned int portNumber);
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/* RtMidiIn API */
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RtMidiInPtr rtmidi_in_create_default ();
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RtMidiInPtr rtmidi_in_create (enum RtMidiApi api, const char *clientName, unsigned int queueSizeLimit);
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void rtmidi_in_free (RtMidiInPtr device);
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enum RtMidiApi rtmidi_in_get_current_api (RtMidiPtr device);
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void rtmidi_in_set_callback (RtMidiInPtr device, RtMidiCCallback callback, void *userData);
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void rtmidi_in_cancel_callback (RtMidiInPtr device);
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void rtmidi_in_ignore_types (RtMidiInPtr device, bool midiSysex, bool midiTime, bool midiSense);
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double rtmidi_in_get_message (RtMidiInPtr device, unsigned char **message);
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/* RtMidiOut API */
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RtMidiOutPtr rtmidi_out_create_default ();
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RtMidiOutPtr rtmidi_out_create (enum RtMidiApi api, const char *clientName);
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void rtmidi_out_free (RtMidiOutPtr device);
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enum RtMidiApi rtmidi_out_get_current_api (RtMidiPtr device);
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int rtmidi_out_send_message (RtMidiOutPtr device, const unsigned char *message, int length);
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#ifdef __cplusplus
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}
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#endif
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#endif

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