improved customizability of game controller configuration screen

[rocksndiamonds.git] / src / libgame / joystick.c

diff --git a/src/libgame/joystick.c b/src/libgame/joystick.c
index 8cf04cf69be4fe6d0c8dd7f57d0461389b8f765d..dfe1cca4ab1e520be35cf402393fd373135555d6 100644 (file)
--- a/src/libgame/joystick.c
+++ b/src/libgame/joystick.c
@@ -1,15 +1,13 @@
-/***********************************************************
-* Artsoft Retro-Game Library                               *
-*----------------------------------------------------------*
-* (c) 1995-2002 Artsoft Entertainment                      *
-*               Holger Schemel                             *
-*               Detmolder Strasse 189                      *
-*               33604 Bielefeld                            *
-*               Germany                                    *
-*               e-mail: info@artsoft.org                   *
-*----------------------------------------------------------*
-* joystick.c                                               *
-***********************************************************/
+// ============================================================================
+// Artsoft Retro-Game Library
+// ----------------------------------------------------------------------------
+// (c) 1995-2014 by Artsoft Entertainment
+//                         Holger Schemel
+//                 info@artsoft.org
+//                 http://www.artsoft.org/
+// ----------------------------------------------------------------------------
+// joystick.c
+// ============================================================================
 
 #if defined(PLATFORM_FREEBSD)
 #include <machine/joystick.h>
@@ -19,91 +17,6 @@
 #include "misc.h"
 
 
-/* ========================================================================= */
-/* platform dependent joystick functions                                     */
-/* ========================================================================= */
-
-#if defined(PLATFORM_UNIX) && !defined(TARGET_SDL)
-void UnixInitJoysticks()
-{
-  static boolean unix_joystick_subsystem_initialized = FALSE;
-  boolean print_warning = !unix_joystick_subsystem_initialized;
-  int i;
-
-  for (i = 0; i < MAX_PLAYERS; i++)
-  {
-    char *device_name = setup.input[i].joy.device_name;
-
-    /* this allows subsequent calls to 'InitJoysticks' for re-initialization */
-    if (joystick.fd[i] != -1)
-    {
-      close(joystick.fd[i]);
-      joystick.fd[i] = -1;
-    }
-
-    if (!setup.input[i].use_joystick)
-      continue;
-
-    if (access(device_name, R_OK) != 0)
-    {
-      if (print_warning)
-       Error(ERR_WARN, "cannot access joystick device '%s'", device_name);
-
-      continue;
-    }
-
-    if ((joystick.fd[i] = open(device_name, O_RDONLY)) < 0)
-    {
-      if (print_warning)
-       Error(ERR_WARN, "cannot open joystick device '%s'", device_name);
-
-      continue;
-    }
-
-    joystick.status = JOYSTICK_ACTIVATED;
-  }
-
-  unix_joystick_subsystem_initialized = TRUE;
-}
-
-boolean UnixReadJoystick(int fd, int *x, int *y, boolean *b1, boolean *b2)
-{
-#if defined(PLATFORM_FREEBSD)
-  struct joystick joy_ctrl;
-#else
-  struct joystick_control
-  {
-    int buttons;
-    int x;
-    int y;
-  } joy_ctrl;
-#endif
-
-  if (read(fd, &joy_ctrl, sizeof(joy_ctrl)) != sizeof(joy_ctrl))
-    return FALSE;
-
-  if (x != NULL)
-    *x = joy_ctrl.x;
-  if (y != NULL)
-    *y = joy_ctrl.y;
-
-#if defined(PLATFORM_FREEBSD)
-  if (b1 != NULL)
-    *b1 = joy_ctrl.b1;
-  if (b2 != NULL)
-    *b2 = joy_ctrl.b2;
-#else
-  if (b1 != NULL)
-    *b1 = joy_ctrl.buttons & 1;
-  if (b2 != NULL)
-    *b2 = joy_ctrl.buttons & 2;
-#endif
-
-  return TRUE;
-}
-#endif /* PLATFORM_UNIX && !TARGET_SDL */
-
-
 /* ========================================================================= */
 /* platform independent joystick functions                                   */
 /* ========================================================================= */
@@ -206,9 +119,42 @@ char *getDeviceNameFromJoystickNr(int joystick_nr)
          joystick_device_name[joystick_nr] : "");
 }
 
+char *getFormattedJoystickName(const char *name_raw)
+{
+  static char name[MAX_JOYSTICK_NAME_LEN + 1];
+  boolean name_skip_space = TRUE;
+  int i, j;
+
+  if (name_raw == NULL)
+    name_raw = "(unknown joystick)";
+
+  // copy joystick name, cutting leading and multiple spaces
+  for (i = 0, j = 0; i < strlen(name_raw) && i < MAX_JOYSTICK_NAME_LEN; i++)
+  {
+    if (name_raw[i] != ' ')
+    {
+      name[j++] = name_raw[i];
+      name_skip_space = FALSE;
+    }
+    else if (!name_skip_space)
+    {
+      name[j++] = name_raw[i];
+      name_skip_space = TRUE;
+    }
+  }
+
+  // cut trailing space
+  if (j > 0 && name[j - 1] == ' ')
+    j--;
+
+  name[j] = '\0';
+
+  return name;
+}
+
 static int JoystickPositionPercent(int center, int border, int actual)
 {
-  long range, position;
+  int range, position;
   int percent;
 
   if (border < center && actual > center)
@@ -246,21 +192,24 @@ void CheckJoystickData()
   }
 }
 
-int Joystick(int player_nr)
+int JoystickExt(int player_nr, boolean use_as_joystick_nr)
 {
-  int joystick_fd = joystick.fd[player_nr];
+  int joystick_nr = joystick.nr[player_nr];
   int js_x, js_y;
   boolean js_b1, js_b2;
   int left, right, up, down;
   int result = JOY_NO_ACTION;
 
+  if (use_as_joystick_nr)
+    joystick_nr = player_nr;
+
   if (joystick.status != JOYSTICK_ACTIVATED)
     return JOY_NO_ACTION;
 
-  if (joystick_fd < 0 || !setup.input[player_nr].use_joystick)
+  if (joystick_nr < 0)
     return JOY_NO_ACTION;
 
-  if (!ReadJoystick(joystick_fd, &js_x, &js_y, &js_b1, &js_b2))
+  if (!ReadJoystick(joystick_nr, &js_x, &js_y, &js_b1, &js_b2))
   {
     Error(ERR_WARN, "cannot read joystick device '%s'",
          setup.input[player_nr].joy.device_name);
@@ -295,10 +244,15 @@ int Joystick(int player_nr)
   return result;
 }
 
-int JoystickButton(int player_nr)
+int Joystick(int player_nr)
+{
+  return JoystickExt(player_nr, FALSE);
+}
+
+int JoystickButtonExt(int player_nr, boolean use_as_joystick_nr)
 {
   static int last_joy_button[MAX_PLAYERS] = { 0, 0, 0, 0 };
-  int joy_button = (Joystick(player_nr) & JOY_BUTTON);
+  int joy_button = (JoystickExt(player_nr, use_as_joystick_nr) & JOY_BUTTON);
   int result;
 
   if (joy_button)
@@ -320,13 +274,18 @@ int JoystickButton(int player_nr)
   return result;
 }
 
+int JoystickButton(int player_nr)
+{
+  return JoystickButtonExt(player_nr, FALSE);
+}
+
 int AnyJoystick()
 {
   int i;
   int result = 0;
 
   for (i = 0; i < MAX_PLAYERS; i++)
-    result |= Joystick(i);
+    result |= JoystickExt(i, TRUE);
 
   return result;
 }
@@ -338,7 +297,7 @@ int AnyJoystickButton()
 
   for (i = 0; i < MAX_PLAYERS; i++)
   {
-    result = JoystickButton(i);
+    result = JoystickButtonExt(i, TRUE);
     if (result != JOY_BUTTON_NOT_PRESSED)
       break;
   }