X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Finput%2Flinux%2Fgamecontroller.cpp;fp=source%2Finput%2Flinux%2Fgamecontroller.cpp;h=bf690494a91c76d08d71f10d2ad8a425cf56a2a8;hb=051149e5026ff64f3ec477cf19080124b82de619;hp=0000000000000000000000000000000000000000;hpb=2f94297c901bf7161632fe88f23dcf987fa625f6;p=libs%2Fgui.git

diff --git a/source/input/linux/gamecontroller.cpp b/source/input/linux/gamecontroller.cpp
new file mode 100644
index 0000000..bf69049
--- /dev/null
+++ b/source/input/linux/gamecontroller.cpp
@@ -0,0 +1,80 @@
+#include <fcntl.h>
+#include <linux/joystick.h>
+#include <msp/core/systemerror.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 {
+
+GameController::GameController(unsigned index):
+	priv(new Private)
+{
+	priv->dev = new JsDevice(format("/dev/input/js%d", index));
+	name = priv->dev->get_name();
+	tick();
+}
+
+GameController::~GameController()
+{
+	delete priv->dev;
+	delete priv;
+}
+
+void GameController::tick()
+{
+	js_event events[16];
+	while(1)
+	{
+		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;
+			bool init = events[i].type&JS_EVENT_INIT;
+			if(type==JS_EVENT_AXIS)
+				set_axis_value(events[i].number, events[i].value/32768.0f, !init);
+			else if(type==JS_EVENT_BUTTON)
+				set_button_state(events[i].number, events[i].value, !init);
+		}
+
+		if(len<sizeof(events))
+			break;
+	}
+}
+
+
+JsDevice::JsDevice(const string &fn)
+{
+	mode = IO::M_READ;
+	*handle = open(fn.c_str(), O_RDONLY|O_NONBLOCK);
+	if(!handle)
+		throw system_error(format("open(%s)", fn));
+}
+
+string JsDevice::get_name() const
+{
+	char buf[128];
+	int ret = ioctl(*handle, JSIOCGNAME(sizeof(buf)), buf);
+	if(ret<0)
+		throw system_error("ioctl(JSIOCGNAME)");
+	return buf;
+}
+
+unsigned JsDevice::do_read(char *buf, unsigned size)
+{
+	return IO::sys_read(handle, buf, size);
+}
+
+unsigned JsDevice::do_write(const char *, unsigned)
+{
+	throw IO::invalid_access(IO::M_WRITE);
+}
+
+} // namespace Input
+} // namespace Msp