core: move contents to mpvcore (1/2)

core is used in many unix systems for core dumps. For that reason some tools
work under the assumption that the file is indeed a core dump (for example
autoconf does this).

This commit just renames the files. The following one will change all the
includes to fix compilation. This is done this way because git has a easier
time tracing file changes if there is a pure rename commit.

1 files changed, 162 insertions, 0 deletions

diff --git a/mpvcore/input/joystick.c b/mpvcore/input/joystick.c
new file mode 100644
index 0000000000..e8330ffaeb
--- /dev/null
+++ b/mpvcore/input/joystick.c
@@ -0,0 +1,162 @@
+/*
+ * This file is part of MPlayer.
+ *
+ * MPlayer is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * MPlayer is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with MPlayer; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include "config.h"
+
+#include "joystick.h"
+#include "input.h"
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <errno.h>
+
+#include "core/mp_msg.h"
+#include "keycodes.h"
+
+#ifndef JOY_AXIS_DELTA
+#define JOY_AXIS_DELTA 500
+#endif
+
+#ifndef JS_DEV
+#define JS_DEV "/dev/input/js0"
+#endif
+
+#include <linux/joystick.h>
+
+int axis[256];
+int btns = 0;
+
+int mp_input_joystick_init(char* dev) {
+  int fd,l=0;
+  int initialized = 0;
+  struct js_event ev;
+
+  mp_tmsg(MSGT_INPUT,MSGL_V,"Opening joystick device %s\n",dev ? dev : JS_DEV);
+
+  fd = open( dev ? dev : JS_DEV , O_RDONLY | O_NONBLOCK );
+  if(fd < 0) {
+    mp_tmsg(MSGT_INPUT,MSGL_ERR,"Can't open joystick device %s: %s\n",dev ? dev : JS_DEV,strerror(errno));
+    return -1;
+  }
+
+  while(! initialized) {
+    l = 0;
+    while((unsigned int)l < sizeof(struct js_event)) {
+      int r = read(fd,((char*)&ev)+l,sizeof(struct js_event)-l);
+      if(r < 0) {
+	if(errno == EINTR)
+	  continue;
+	else if(errno == EAGAIN) {
+	  initialized = 1;
+	  break;
+	}
+	mp_tmsg(MSGT_INPUT,MSGL_ERR,"Error while reading joystick device: %s\n",strerror(errno));
+	close(fd);
+	return -1;
+      }
+      l += r;
+    }
+    if((unsigned int)l < sizeof(struct js_event)) {
+      if(l > 0)
+	mp_tmsg(MSGT_INPUT,MSGL_WARN,"Joystick: We lose %d bytes of data\n",l);
+      break;
+    }
+    if(ev.type == JS_EVENT_BUTTON)
+      btns |= (ev.value << ev.number);
+    if(ev.type == JS_EVENT_AXIS)
+      axis[ev.number] = ev.value;
+  }
+
+  return fd;
+}
+
+int mp_input_joystick_read(void *ctx, int fd) {
+  struct js_event ev;
+  int l=0;
+
+  while((unsigned int)l < sizeof(struct js_event)) {
+    int r = read(fd,&ev+l,sizeof(struct js_event)-l);
+    if(r <= 0) {
+      if(errno == EINTR)
+	continue;
+      else if(errno == EAGAIN)
+	return MP_INPUT_NOTHING;
+      if( r < 0)
+	mp_tmsg(MSGT_INPUT,MSGL_ERR,"Error while reading joystick device: %s\n",strerror(errno));
+      else
+	mp_tmsg(MSGT_INPUT,MSGL_ERR,"Error while reading joystick device: %s\n","EOF");
+      return MP_INPUT_DEAD;
+    }
+    l += r;
+  }
+
+  if((unsigned int)l < sizeof(struct js_event)) {
+    if(l > 0)
+      mp_tmsg(MSGT_INPUT,MSGL_WARN,"Joystick: We lose %d bytes of data\n",l);
+    return MP_INPUT_NOTHING;
+  }
+
+  if(ev.type & JS_EVENT_INIT) {
+    mp_tmsg(MSGT_INPUT,MSGL_WARN,"Joystick: warning init event, we have lost sync with driver.\n");
+    ev.type &= ~JS_EVENT_INIT;
+    if(ev.type == JS_EVENT_BUTTON) {
+      int s = (btns >> ev.number) & 1;
+      if(s == ev.value) // State is the same : ignore
+	return MP_INPUT_NOTHING;
+    }
+    if(ev.type == JS_EVENT_AXIS) {
+      if( ( axis[ev.number] == 1 && ev.value > JOY_AXIS_DELTA) ||
+	  (axis[ev.number] == -1 && ev.value < -JOY_AXIS_DELTA) ||
+	  (axis[ev.number] == 0 && ev.value >= -JOY_AXIS_DELTA && ev.value <= JOY_AXIS_DELTA)
+	  ) // State is the same : ignore
+	return MP_INPUT_NOTHING;
+    }
+  }
+
+  if(ev.type & JS_EVENT_BUTTON) {
+    btns &= ~(1 << ev.number);
+    btns |= (ev.value << ev.number);
+    if(ev.value == 1)
+      return (MP_JOY_BTN0 + ev.number) | MP_KEY_STATE_DOWN;
+    else
+      return (MP_JOY_BTN0 + ev.number) | MP_KEY_STATE_UP;
+  } else if(ev.type & JS_EVENT_AXIS) {
+    if(ev.value < -JOY_AXIS_DELTA && axis[ev.number] != -1) {
+      axis[ev.number] = -1;
+      return (MP_JOY_AXIS0_MINUS+(2*ev.number)) | MP_KEY_STATE_DOWN;
+    } else if(ev.value > JOY_AXIS_DELTA && axis[ev.number] != 1) {
+      axis[ev.number] = 1;
+      return (MP_JOY_AXIS0_PLUS+(2*ev.number)) | MP_KEY_STATE_DOWN;
+    } else if(ev.value <= JOY_AXIS_DELTA && ev.value >= -JOY_AXIS_DELTA && axis[ev.number] != 0) {
+      int r = axis[ev.number] == 1 ? MP_JOY_AXIS0_PLUS+(2*ev.number) : MP_JOY_AXIS0_MINUS+(2*ev.number);
+      axis[ev.number] = 0;
+      return r | MP_KEY_STATE_UP;
+    } else
+      return MP_INPUT_NOTHING;
+  } else {
+    mp_tmsg(MSGT_INPUT,MSGL_WARN,"Joystick warning unknown event type %d\n",ev.type);
+    return MP_INPUT_ERROR;
+  }
+
+  return MP_INPUT_NOTHING;
+}