X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Finput%2Flinux%2Fgamecontroller.cpp;h=06008bcf90b0adcd2abd89d6e05eac457b049992;hb=HEAD;hp=7fc59ed6669d0f99f11758f352ac1a478550b570;hpb=d17c22c1da1915afbcb9e39f4bd5e7e28259a110;p=libs%2Fgui.git

diff --git a/source/input/linux/gamecontroller.cpp b/source/input/linux/gamecontroller.cpp
index 7fc59ed..06008bc 100644
--- a/source/input/linux/gamecontroller.cpp
+++ b/source/input/linux/gamecontroller.cpp
@@ -1,22 +1,35 @@
+#include "gamecontroller.h"
+#include "gamecontroller_platform.h"
 #include <fcntl.h>
 #include <linux/joystick.h>
+#include <msp/core/algorithm.h>
 #include <msp/core/systemerror.h>
+#include <msp/fs/dir.h>
 #include <msp/io/handle_private.h>
 #include <msp/strings/format.h>
-#include "gamecontroller.h"
-#include "gamecontroller_platform.h"
 
 using namespace std;
 
 namespace Msp {
 namespace Input {
 
+vector<string> GameController::Private::detected_controllers;
+
 GameController::GameController(unsigned index):
-	priv(new Private)
+	Device(GAME_CONTROLLER)
 {
-	priv->dev = new JsDevice(format("/dev/input/js%d", index));
+	if(!detect_done)
+		detect();
+	if(index>=Private::detected_controllers.size())
+		throw device_not_available(format("GameController(%d)", index));
+
+	JsDevice *device = new JsDevice(Private::detected_controllers[index]);
+
+	priv = new Private;
+	priv->dev = device;
+	priv->dev->signal_data_available.connect(sigc::mem_fun(this, static_cast<void (GameController::*)()>(&GameController::tick)));
 	name = priv->dev->get_name();
-	tick();
+	tick(Time::zero);
 }
 
 GameController::~GameController()
@@ -25,21 +38,52 @@ GameController::~GameController()
 	delete priv;
 }
 
+unsigned GameController::detect()
+{
+	Private::detected_controllers.clear();
+
+	FS::Path dev_input = "/dev/input";
+	vector<string> devices = FS::list_filtered(dev_input, "^js[0-9]+");
+	sort(devices);
+	for(const string &f: devices)
+		// TODO check permissions
+		Private::detected_controllers.push_back((dev_input/f).str());
+
+	detect_done = true;
+	n_detected_controllers = Private::detected_controllers.size();
+
+	return Private::detected_controllers.size();
+}
+
+void GameController::use_event_dispatcher(IO::EventDispatcher *ed)
+{
+	if(event_disp)
+		event_disp->remove(*priv->dev);
+	event_disp = ed;
+	if(event_disp)
+		event_disp->add(*priv->dev);
+}
+
 void GameController::tick()
 {
 	js_event events[16];
+	bool first = true;
 	while(1)
 	{
+		if(!first && !IO::poll(*priv->dev, IO::P_INPUT, Time::zero))
+			break;
+
+		first = false;
 		unsigned len = priv->dev->read(reinterpret_cast<char *>(events), sizeof(events));
 
 		unsigned count = len/sizeof(js_event);
 		for(unsigned i=0; i<count; ++i)
 		{
-			unsigned type = events[i].type&0x7F;
+			unsigned etype = events[i].type&0x7F;
 			bool init = events[i].type&JS_EVENT_INIT;
-			if(type==JS_EVENT_AXIS)
+			if(etype==JS_EVENT_AXIS)
 				set_axis_value(events[i].number, events[i].value/32768.0f, !init);
-			else if(type==JS_EVENT_BUTTON)
+			else if(etype==JS_EVENT_BUTTON)
 				set_button_state(events[i].number, events[i].value, !init);
 		}
 
@@ -49,12 +93,20 @@ void GameController::tick()
 }
 
 
+void GameController::tick(const Time::TimeDelta &timeout)
+{
+	if(IO::poll(*priv->dev, IO::P_INPUT, timeout))
+		tick();
+}
+
+
 JsDevice::JsDevice(const string &fn)
 {
 	mode = IO::M_READ;
-	*handle = open(fn.c_str(), O_RDONLY|O_NONBLOCK);
+	*handle = open(fn.c_str(), O_RDONLY);
 	if(!handle)
 		throw system_error(format("open(%s)", fn));
+	set_events(IO::P_INPUT);
 }
 
 JsDevice::~JsDevice()
@@ -71,12 +123,12 @@ string JsDevice::get_name() const
 	return buf;
 }
 
-unsigned JsDevice::do_read(char *buf, unsigned size)
+size_t JsDevice::do_read(char *buf, size_t size)
 {
 	return IO::sys_read(handle, buf, size);
 }
 
-unsigned JsDevice::do_write(const char *, unsigned)
+size_t JsDevice::do_write(const char *, size_t)
 {
 	throw IO::invalid_access(IO::M_WRITE);
 }