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authorGoran Mekić <meka@tilda.center>2017-12-29 23:36:55 +0100
committerGoran Mekić <meka@tilda.center>2017-12-30 15:18:26 +0100
commita6343737453b34335a7a5494c8ac6b393d15604c (patch)
tree73fb775a93302909e269205d443516e51359309c /drumgizmo
parent476a82d1c431c26f71286a2d904144bfa5468101 (diff)
Open midi device in non-blocking mode
Diffstat (limited to 'drumgizmo')
-rw-r--r--drumgizmo/drumgizmoc.cc2
-rw-r--r--drumgizmo/enginefactory.cc6
-rw-r--r--drumgizmo/enginefactory.h5
-rw-r--r--drumgizmo/input/ossmidi.cc45
-rw-r--r--drumgizmo/input/ossmidi.h8
5 files changed, 57 insertions, 9 deletions
diff --git a/drumgizmo/drumgizmoc.cc b/drumgizmo/drumgizmoc.cc
index 8bfe2f4..6a2458b 100644
--- a/drumgizmo/drumgizmoc.cc
+++ b/drumgizmo/drumgizmoc.cc
@@ -103,7 +103,7 @@ static std::string usage(std::string name)
output << " midifile: file=<midifile>, speed=<tempo> (default 1.0),\n";
output << " track=<miditrack> (default -1, all tracks)\n";
output << " midimap=<midimapfile>, loop=<true|false>\n";
- output << " ossmidi: midimap=<midimapfile>, dev=<device> (default '/dev/dsp')\n";
+ output << " ossmidi: midimap=<midimapfile>, dev=<device> (default '/dev/midi')\n";
output << " test: p=<hit_propability> (default 0.1)\n";
output << " instr=<instrument> (default -1, random instrument)\n";
output << " len=<seconds> (default -1, forever)\n";
diff --git a/drumgizmo/enginefactory.cc b/drumgizmo/enginefactory.cc
index d54c3e2..c93607e 100644
--- a/drumgizmo/enginefactory.cc
+++ b/drumgizmo/enginefactory.cc
@@ -118,10 +118,10 @@ std::unique_ptr<AudioInputEngine> EngineFactory::createInput(const std::string&
return std::make_unique<JackMidiInputEngine>(*jack);
}
#endif
-#ifdef HAVE_INPUT_OSS
- if(name == "oss")
+#ifdef HAVE_INPUT_OSSMIDI
+ if(name == "ossmidi")
{
- return std::make_unique<OssMidiInputEngine>();
+ return std::make_unique<OSSInputEngine>();
}
#endif
diff --git a/drumgizmo/enginefactory.h b/drumgizmo/enginefactory.h
index 327c326..0b37c6e 100644
--- a/drumgizmo/enginefactory.h
+++ b/drumgizmo/enginefactory.h
@@ -78,6 +78,11 @@
#endif
+#ifdef HAVE_INPUT_OSSMIDI
+#include "input/ossmidi.h"
+#endif
+
+
//! Factory for various input- and output engines
class EngineFactory
{
diff --git a/drumgizmo/input/ossmidi.cc b/drumgizmo/input/ossmidi.cc
index 024415e..56d77f0 100644
--- a/drumgizmo/input/ossmidi.cc
+++ b/drumgizmo/input/ossmidi.cc
@@ -25,31 +25,55 @@
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
*/
#include "ossmidi.h"
+#include <sys/soundcard.h>
+#include <fcntl.h>
+#include <stdlib.h>
+#include <unistd.h>
#include <iostream>
OSSInputEngine::OSSInputEngine()
+ : AudioInputEngineMidi{}
+ , dev{"/dev/midi"}
{
}
+
OSSInputEngine::~OSSInputEngine()
{
}
+
bool OSSInputEngine::init(const Instruments& instruments)
{
+ if(!loadMidiMap(midimap_file, instruments))
+ {
+ std::cerr << "[OSSInputEngine] Failed to parse midimap '"
+ << midimap_file << std::endl;
+ return false;
+ }
+ if ((fd = open(dev.data(), O_RDONLY | O_NONBLOCK, 0)) == -1)
+ {
+ std::cerr << dev.data() << ' ' << std::strerror(errno) << std::endl;
+ return false;
+ }
return true;
}
+
void OSSInputEngine::setParm(const std::string& parm, const std::string& value)
{
if(parm == "dev")
{
dev = value;
- std::cout << "dev = " << dev << std::endl;
+ }
+ else if(parm == "midimap")
+ {
+ midimap_file = value;
}
}
+
bool OSSInputEngine::start()
{
return true;
@@ -59,20 +83,37 @@ void OSSInputEngine::stop()
{
}
+
void OSSInputEngine::pre()
{
}
+
void OSSInputEngine::run(size_t pos, size_t len, std::vector<event_t>& events)
{
+ int l;
+ unsigned char buf[128];
+ if ((l = read (fd, buf, sizeof (buf))) != -1)
+ {
+ for (int i = 0; i < l; i++)
+ {
+ if (buf[i] & 0x80) /* Status byte */
+ {
+ std::cout << std::endl;
+ }
+ std::cout << buf[i];
+ }
+ std::cout << std::flush;
+ }
}
+
void OSSInputEngine::post()
{
}
+
bool OSSInputEngine::isFreewheeling() const
{
return false;
}
-
diff --git a/drumgizmo/input/ossmidi.h b/drumgizmo/input/ossmidi.h
index 41cfb2b..c6abacd 100644
--- a/drumgizmo/input/ossmidi.h
+++ b/drumgizmo/input/ossmidi.h
@@ -25,10 +25,11 @@
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
*/
#pragma once
-#include <audioinputengine.h>
+#include "audioinputenginemidi.h"
+
class OSSInputEngine
- : public AudioInputEngine
+ : public AudioInputEngineMidi
{
public:
OSSInputEngine();
@@ -45,8 +46,9 @@ public:
bool isFreewheeling() const override;
private:
- std::string dev;
int fd;
+ std::string dev;
std::size_t pos;
std::vector<event_t> events;
+ std::string midimap_file;
};