src/haptic/linux/SDL_syshaptic.c
author Edgar Simo <bobbens@gmail.com>
Thu, 17 Jul 2008 11:47:48 +0000
branchgsoc2008_force_feedback
changeset 2523 366d84fdf8d1
parent 2519 af9df9662807
child 2524 1a55848ce198
permissions -rw-r--r--
Haptic subsystem handles haptic axes now. Support for SDL_HAPTIC_SPHERICAL on linux. More error checking. Improved documentation. Added missing SDLCALLs to SDL_haptic.h.
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/*
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    SDL - Simple DirectMedia Layer
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    Copyright (C) 2008 Edgar Simo
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    This library is free software; you can redistribute it and/or
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    modify it under the terms of the GNU Lesser General Public
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    License as published by the Free Software Foundation; either
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    version 2.1 of the License, or (at your option) any later version.
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    This library is distributed in the hope that it will be useful,
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    but WITHOUT ANY WARRANTY; without even the implied warranty of
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    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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    Lesser General Public License for more details.
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    You should have received a copy of the GNU Lesser General Public
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    License along with this library; if not, write to the Free Software
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    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
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    Sam Lantinga
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    slouken@libsdl.org
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*/
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#include "SDL_config.h"
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#ifdef SDL_HAPTIC_LINUX
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#include "SDL_haptic.h"
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#include "../SDL_syshaptic.h"
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#include "SDL_joystick.h"
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#include "../../joystick/SDL_sysjoystick.h" /* For the real SDL_Joystick */
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#include "../../joystick/linux/SDL_sysjoystick_c.h" /* For joystick hwdata */ 
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#include <unistd.h> /* close */
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#include <linux/input.h>
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#include <sys/ioctl.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <linux/limits.h>
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#include <limits.h> /* INT_MAX */
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#include <string.h>
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#include <errno.h>
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#include <math.h>
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#ifndef M_PI
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#  define M_PI     3.14159265358979323846
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#endif
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#define MAX_HAPTICS  32
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/*
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 * List of available haptic devices.
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 */
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static struct
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{
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   char *fname;
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   SDL_Haptic *haptic;
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} SDL_hapticlist[MAX_HAPTICS];
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/*
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 * Haptic system hardware data.
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 */
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struct haptic_hwdata
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{
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   int fd;
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};
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/*
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 * Haptic system effect data.
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 */
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struct haptic_hweffect
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{
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   struct ff_effect effect; /* The linux kernel effect structure. */
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};
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#define test_bit(nr, addr) \
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   (((1UL << ((nr) & 31)) & (((const unsigned int *) addr)[(nr) >> 5])) != 0)
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#define EV_TEST(ev,f) \
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   if (test_bit((ev), features)) ret |= (f);
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/*
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 * Test whether a device has haptic properties.
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 * Returns available properties or 0 if there are none.
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 */
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static int
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EV_IsHaptic(int fd)
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{
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   unsigned int ret;
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   unsigned long features[1 + FF_MAX/sizeof(unsigned long)];
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   /* Ask device for what it has. */
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   ret = 0;
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   if (ioctl(fd, EVIOCGBIT(EV_FF, sizeof(features)), features) < 0) {
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      SDL_SetError("Haptic: Unable to get device's features: %s", strerror(errno));
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      return -1;
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   }
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   /* Convert supported features to SDL_HAPTIC platform-neutral features. */
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   EV_TEST(FF_CONSTANT,   SDL_HAPTIC_CONSTANT);
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   EV_TEST(FF_PERIODIC,   SDL_HAPTIC_SINE |
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                          SDL_HAPTIC_SQUARE |
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                          SDL_HAPTIC_TRIANGLE |
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                          SDL_HAPTIC_SAWTOOTHUP |
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                          SDL_HAPTIC_SAWTOOTHDOWN);
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   EV_TEST(FF_RAMP,       SDL_HAPTIC_RAMP);
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   EV_TEST(FF_SPRING,     SDL_HAPTIC_SPRING);
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   EV_TEST(FF_FRICTION,   SDL_HAPTIC_FRICTION);
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   EV_TEST(FF_DAMPER,     SDL_HAPTIC_DAMPER);
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   EV_TEST(FF_INERTIA,    SDL_HAPTIC_INERTIA);
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   EV_TEST(FF_CUSTOM,     SDL_HAPTIC_CUSTOM);
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   EV_TEST(FF_GAIN,       SDL_HAPTIC_GAIN);
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   EV_TEST(FF_AUTOCENTER, SDL_HAPTIC_AUTOCENTER);
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   /* Return what it supports. */
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   return ret;
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}
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/*
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 * Tests whether a device is a mouse or not.
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 */
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static int
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EV_IsMouse(int fd)
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{
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   unsigned long argp[40];
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   /* Ask for supported features. */
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   if (ioctl(fd, EVIOCGBIT(EV_KEY, sizeof(argp)), argp) < 0) {
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      return -1;
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   }
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   /* Currently we only test for BTN_MOUSE which can give fake positives. */
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   if (test_bit(BTN_MOUSE,argp) != 0) {
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      return 1;
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   }
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   return 0;
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}
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/*
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 * Initializes the haptic subsystem by finding available devices.
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 */
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int
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SDL_SYS_HapticInit(void)
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{
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   const char joydev_pattern[] = "/dev/input/event%d";
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   dev_t dev_nums[MAX_HAPTICS];
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   char path[PATH_MAX];
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   struct stat sb;
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   int fd;
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   int i, j, k;
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   int duplicate;
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   int numhaptics;
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   numhaptics = 0;
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   /* 
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    * Limit amount of checks to MAX_HAPTICS since we may or may not have
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    * permission to some or all devices.
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    */
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   i = 0;
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   for (j = 0; j < MAX_HAPTICS; ++j) {
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      snprintf(path, PATH_MAX, joydev_pattern, i++);
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      /* check to see if file exists */
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      if (stat(path,&sb) != 0)
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         break;
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      /* check for duplicates */
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      duplicate = 0;
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      for (k = 0; (k < numhaptics) && !duplicate; ++k) {
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         if (sb.st_rdev == dev_nums[k]) {
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            duplicate = 1;
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         }                                                     
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      }                                                         
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      if (duplicate) {
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         continue;
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      }
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      /* try to open */
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      fd = open(path, O_RDWR, 0);
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      if (fd < 0) continue;
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#ifdef DEBUG_INPUT_EVENTS
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      printf("Checking %s\n", path);
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#endif          
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      /* see if it works */
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      if (EV_IsHaptic(fd) > 0) {
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         SDL_hapticlist[numhaptics].fname = SDL_strdup(path);
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         SDL_hapticlist[numhaptics].haptic = NULL;
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         dev_nums[numhaptics] = sb.st_rdev;
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         ++numhaptics;
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      }
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      close(fd);
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   }
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   return numhaptics;
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}
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   206
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/*
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 * Return the name of a haptic device, does not need to be opened.
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 */
2472
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const char *
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SDL_SYS_HapticName(int index)
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{
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   int fd;
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   static char namebuf[128];
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   char *name;
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   /* Open the haptic device. */
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   name = NULL;
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   fd = open(SDL_hapticlist[index].fname, O_RDONLY, 0);
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   220
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   221
   if (fd >= 0) {
2512
ef147ee4896c Improved some ioctl handling.
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   222
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   223
      /* Check for name ioctl. */
2472
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   224
      if (ioctl(fd, EVIOCGNAME(sizeof(namebuf)), namebuf) <= 0) {
2512
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   225
ef147ee4896c Improved some ioctl handling.
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   226
         /* No name found, return device character device */
2472
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   227
         name = SDL_hapticlist[index].fname;
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   228
      }
2512
ef147ee4896c Improved some ioctl handling.
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   229
      /* Name found, return name. */
2472
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   230
      else {
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   231
         name = namebuf;
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   232
      }
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   233
   }
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   234
   close(fd);
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   235
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   236
   return name;
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   237
}
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   238
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   239
2475
4b874e3a3a2c Some code cleanup.
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   240
/*
2490
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   241
 * Opens the haptic device from the file descriptor.
2475
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   242
 */
2490
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   243
static int
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   244
SDL_SYS_HapticOpenFromFD(SDL_Haptic * haptic, int fd)
2472
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   245
{
2476
242d8a668ebb * Implemented opening and closing of haptic devices.
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   246
   /* Allocate the hwdata */
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   247
   haptic->hwdata = (struct haptic_hwdata *)
2477
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   248
         SDL_malloc(sizeof(*haptic->hwdata));
2476
242d8a668ebb * Implemented opening and closing of haptic devices.
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   249
   if (haptic->hwdata == NULL) {
242d8a668ebb * Implemented opening and closing of haptic devices.
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   250
      SDL_OutOfMemory();
2477
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   251
      goto open_err;
2476
242d8a668ebb * Implemented opening and closing of haptic devices.
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   252
   }
242d8a668ebb * Implemented opening and closing of haptic devices.
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   253
   SDL_memset(haptic->hwdata, 0, sizeof(*haptic->hwdata));
2512
ef147ee4896c Improved some ioctl handling.
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   254
2478
4fd783e0f34b Added query functions for haptic devices.
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   255
   /* Set the data */
2476
242d8a668ebb * Implemented opening and closing of haptic devices.
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   256
   haptic->hwdata->fd = fd;
2478
4fd783e0f34b Added query functions for haptic devices.
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   257
   haptic->supported = EV_IsHaptic(fd);
2523
366d84fdf8d1 Haptic subsystem handles haptic axes now.
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diff changeset
   258
   haptic->naxes = 2; /* Hardcoded for now, not sure if it's possible to find out. */
2472
3f73c88c9abb First commit of the SDL_haptic subsystem.
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   259
2477
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   260
   /* Set the effects */
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   261
   if (ioctl(fd, EVIOCGEFFECTS, &haptic->neffects) < 0) {
2513
55fd9103a330 Prefixed all haptic errors with "Haptic:" for easier readability.
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diff changeset
   262
      SDL_SetError("Haptic: Unable to query device memory: %s", strerror(errno));
2477
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   263
      goto open_err;
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   264
   }
2515
030fc4375e63 Added SDL_HapticNumEffectsPlaying().
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   265
   haptic->nplaying = haptic->neffects; /* Linux makes no distinction. */
2477
97f75ea43a93 Starting to add infrastructure to handle haptic effects.
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   266
   haptic->effects = (struct haptic_effect *)
97f75ea43a93 Starting to add infrastructure to handle haptic effects.
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   267
         SDL_malloc(sizeof(struct haptic_effect) * haptic->neffects);
97f75ea43a93 Starting to add infrastructure to handle haptic effects.
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diff changeset
   268
   if (haptic->effects == NULL) {
97f75ea43a93 Starting to add infrastructure to handle haptic effects.
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diff changeset
   269
      SDL_OutOfMemory();
97f75ea43a93 Starting to add infrastructure to handle haptic effects.
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   270
      goto open_err;
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diff changeset
   271
   }
2483
9d52368ebcf5 Setting effects memory to 0.
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parents: 2482
diff changeset
   272
   /* Clear the memory */
9d52368ebcf5 Setting effects memory to 0.
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   273
   SDL_memset(haptic->effects, 0,
9d52368ebcf5 Setting effects memory to 0.
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diff changeset
   274
         sizeof(struct haptic_effect) * haptic->neffects);
2477
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   275
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   276
   return 0;
2477
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diff changeset
   277
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   278
   /* Error handling */
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   279
open_err:
97f75ea43a93 Starting to add infrastructure to handle haptic effects.
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   280
   close(fd);
97f75ea43a93 Starting to add infrastructure to handle haptic effects.
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diff changeset
   281
   if (haptic->hwdata != NULL) {
97f75ea43a93 Starting to add infrastructure to handle haptic effects.
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diff changeset
   282
      free(haptic->hwdata);
97f75ea43a93 Starting to add infrastructure to handle haptic effects.
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diff changeset
   283
      haptic->hwdata = NULL;
97f75ea43a93 Starting to add infrastructure to handle haptic effects.
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diff changeset
   284
   }
97f75ea43a93 Starting to add infrastructure to handle haptic effects.
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diff changeset
   285
   return -1;
2472
3f73c88c9abb First commit of the SDL_haptic subsystem.
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parents:
diff changeset
   286
}
3f73c88c9abb First commit of the SDL_haptic subsystem.
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diff changeset
   287
3f73c88c9abb First commit of the SDL_haptic subsystem.
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parents:
diff changeset
   288
2475
4b874e3a3a2c Some code cleanup.
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diff changeset
   289
/*
2490
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   290
 * Opens a haptic device for usage.
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   291
 */
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   292
int
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   293
SDL_SYS_HapticOpen(SDL_Haptic * haptic)
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diff changeset
   294
{
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diff changeset
   295
   int fd;
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diff changeset
   296
be9b206d44af Some more error checking.
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diff changeset
   297
   /* Open the character device */
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   298
   fd = open(SDL_hapticlist[haptic->index].fname, O_RDWR, 0);
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diff changeset
   299
   if (fd < 0) {
2513
55fd9103a330 Prefixed all haptic errors with "Haptic:" for easier readability.
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   300
      SDL_SetError("Haptic: Unable to open %s: %s",
2496
8f840a6cdf01 Using errno for more verbosity in errors.
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diff changeset
   301
            SDL_hapticlist[haptic->index], strerror(errno));
2490
be9b206d44af Some more error checking.
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diff changeset
   302
      return -1;
be9b206d44af Some more error checking.
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diff changeset
   303
   }
be9b206d44af Some more error checking.
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diff changeset
   304
   
be9b206d44af Some more error checking.
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diff changeset
   305
   return SDL_SYS_HapticOpenFromFD(haptic,fd);
2512
ef147ee4896c Improved some ioctl handling.
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diff changeset
   306
}
ef147ee4896c Improved some ioctl handling.
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diff changeset
   307
ef147ee4896c Improved some ioctl handling.
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diff changeset
   308
ef147ee4896c Improved some ioctl handling.
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parents: 2511
diff changeset
   309
/*
ef147ee4896c Improved some ioctl handling.
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   310
 * Opens a haptic device from first mouse it finds for usage.
ef147ee4896c Improved some ioctl handling.
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parents: 2511
diff changeset
   311
 */
ef147ee4896c Improved some ioctl handling.
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diff changeset
   312
int
ef147ee4896c Improved some ioctl handling.
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diff changeset
   313
SDL_SYS_HapticMouse(void)
ef147ee4896c Improved some ioctl handling.
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diff changeset
   314
{
ef147ee4896c Improved some ioctl handling.
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diff changeset
   315
   int fd;
ef147ee4896c Improved some ioctl handling.
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parents: 2511
diff changeset
   316
   int i;
ef147ee4896c Improved some ioctl handling.
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parents: 2511
diff changeset
   317
ef147ee4896c Improved some ioctl handling.
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parents: 2511
diff changeset
   318
   for (i=0; i<SDL_numhaptics; i++) {
ef147ee4896c Improved some ioctl handling.
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diff changeset
   319
ef147ee4896c Improved some ioctl handling.
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diff changeset
   320
      /* Open the device. */
ef147ee4896c Improved some ioctl handling.
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diff changeset
   321
      fd = open(SDL_hapticlist[i].fname, O_RDWR, 0);
ef147ee4896c Improved some ioctl handling.
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parents: 2511
diff changeset
   322
      if (fd < 0) {
2513
55fd9103a330 Prefixed all haptic errors with "Haptic:" for easier readability.
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parents: 2512
diff changeset
   323
         SDL_SetError("Haptic: Unable to open %s: %s",
2512
ef147ee4896c Improved some ioctl handling.
Edgar Simo <bobbens@gmail.com>
parents: 2511
diff changeset
   324
               SDL_hapticlist[i], strerror(errno));
ef147ee4896c Improved some ioctl handling.
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parents: 2511
diff changeset
   325
         return -1;
ef147ee4896c Improved some ioctl handling.
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parents: 2511
diff changeset
   326
      }
ef147ee4896c Improved some ioctl handling.
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parents: 2511
diff changeset
   327
ef147ee4896c Improved some ioctl handling.
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parents: 2511
diff changeset
   328
      if (EV_IsMouse(fd)) {
ef147ee4896c Improved some ioctl handling.
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parents: 2511
diff changeset
   329
         close(fd);
ef147ee4896c Improved some ioctl handling.
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parents: 2511
diff changeset
   330
         return i;
ef147ee4896c Improved some ioctl handling.
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parents: 2511
diff changeset
   331
      }
ef147ee4896c Improved some ioctl handling.
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parents: 2511
diff changeset
   332
ef147ee4896c Improved some ioctl handling.
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parents: 2511
diff changeset
   333
      close(fd);
ef147ee4896c Improved some ioctl handling.
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parents: 2511
diff changeset
   334
   }
ef147ee4896c Improved some ioctl handling.
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diff changeset
   335
   
ef147ee4896c Improved some ioctl handling.
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parents: 2511
diff changeset
   336
   return -1;
ef147ee4896c Improved some ioctl handling.
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parents: 2511
diff changeset
   337
}
2490
be9b206d44af Some more error checking.
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parents: 2489
diff changeset
   338
be9b206d44af Some more error checking.
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diff changeset
   339
be9b206d44af Some more error checking.
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diff changeset
   340
/*
2489
96adc8025331 Exposed some of the joystick stuff to the haptic subsystem.
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diff changeset
   341
 * Checks to see if a joystick has haptic features.
96adc8025331 Exposed some of the joystick stuff to the haptic subsystem.
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diff changeset
   342
 */
96adc8025331 Exposed some of the joystick stuff to the haptic subsystem.
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diff changeset
   343
int
96adc8025331 Exposed some of the joystick stuff to the haptic subsystem.
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diff changeset
   344
SDL_SYS_JoystickIsHaptic(SDL_Joystick * joystick)
96adc8025331 Exposed some of the joystick stuff to the haptic subsystem.
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parents: 2488
diff changeset
   345
{
2490
be9b206d44af Some more error checking.
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diff changeset
   346
   return EV_IsHaptic(joystick->hwdata->fd);
be9b206d44af Some more error checking.
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diff changeset
   347
}
be9b206d44af Some more error checking.
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parents: 2489
diff changeset
   348
be9b206d44af Some more error checking.
Edgar Simo <bobbens@gmail.com>
parents: 2489
diff changeset
   349
be9b206d44af Some more error checking.
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diff changeset
   350
/*
be9b206d44af Some more error checking.
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diff changeset
   351
 * Checks to see if the haptic device and joystick and in reality the same.
be9b206d44af Some more error checking.
Edgar Simo <bobbens@gmail.com>
parents: 2489
diff changeset
   352
 */
be9b206d44af Some more error checking.
Edgar Simo <bobbens@gmail.com>
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diff changeset
   353
int
be9b206d44af Some more error checking.
Edgar Simo <bobbens@gmail.com>
parents: 2489
diff changeset
   354
SDL_SYS_JoystickSameHaptic(SDL_Haptic * haptic, SDL_Joystick * joystick)
be9b206d44af Some more error checking.
Edgar Simo <bobbens@gmail.com>
parents: 2489
diff changeset
   355
{
be9b206d44af Some more error checking.
Edgar Simo <bobbens@gmail.com>
parents: 2489
diff changeset
   356
   if (SDL_strcmp(joystick->name,haptic->name)==0) {
2489
96adc8025331 Exposed some of the joystick stuff to the haptic subsystem.
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diff changeset
   357
      return 1;
2490
be9b206d44af Some more error checking.
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diff changeset
   358
   }
2489
96adc8025331 Exposed some of the joystick stuff to the haptic subsystem.
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parents: 2488
diff changeset
   359
   return 0;
96adc8025331 Exposed some of the joystick stuff to the haptic subsystem.
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parents: 2488
diff changeset
   360
}
96adc8025331 Exposed some of the joystick stuff to the haptic subsystem.
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parents: 2488
diff changeset
   361
96adc8025331 Exposed some of the joystick stuff to the haptic subsystem.
Edgar Simo <bobbens@gmail.com>
parents: 2488
diff changeset
   362
96adc8025331 Exposed some of the joystick stuff to the haptic subsystem.
Edgar Simo <bobbens@gmail.com>
parents: 2488
diff changeset
   363
/*
96adc8025331 Exposed some of the joystick stuff to the haptic subsystem.
Edgar Simo <bobbens@gmail.com>
parents: 2488
diff changeset
   364
 * Opens a SDL_Haptic from a SDL_Joystick.
96adc8025331 Exposed some of the joystick stuff to the haptic subsystem.
Edgar Simo <bobbens@gmail.com>
parents: 2488
diff changeset
   365
 */
96adc8025331 Exposed some of the joystick stuff to the haptic subsystem.
Edgar Simo <bobbens@gmail.com>
parents: 2488
diff changeset
   366
int
96adc8025331 Exposed some of the joystick stuff to the haptic subsystem.
Edgar Simo <bobbens@gmail.com>
parents: 2488
diff changeset
   367
SDL_SYS_HapticOpenFromJoystick(SDL_Haptic * haptic, SDL_Joystick * joystick)
96adc8025331 Exposed some of the joystick stuff to the haptic subsystem.
Edgar Simo <bobbens@gmail.com>
parents: 2488
diff changeset
   368
{
2490
be9b206d44af Some more error checking.
Edgar Simo <bobbens@gmail.com>
parents: 2489
diff changeset
   369
   int fd;
be9b206d44af Some more error checking.
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parents: 2489
diff changeset
   370
   fd = open(joystick->hwdata->fname, O_RDWR, 0);
be9b206d44af Some more error checking.
Edgar Simo <bobbens@gmail.com>
parents: 2489
diff changeset
   371
   return SDL_SYS_HapticOpenFromFD(haptic,fd);
2489
96adc8025331 Exposed some of the joystick stuff to the haptic subsystem.
Edgar Simo <bobbens@gmail.com>
parents: 2488
diff changeset
   372
}
96adc8025331 Exposed some of the joystick stuff to the haptic subsystem.
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parents: 2488
diff changeset
   373
96adc8025331 Exposed some of the joystick stuff to the haptic subsystem.
Edgar Simo <bobbens@gmail.com>
parents: 2488
diff changeset
   374
96adc8025331 Exposed some of the joystick stuff to the haptic subsystem.
Edgar Simo <bobbens@gmail.com>
parents: 2488
diff changeset
   375
/*
2475
4b874e3a3a2c Some code cleanup.
Edgar Simo <bobbens@gmail.com>
parents: 2474
diff changeset
   376
 * Closes the haptic device.
4b874e3a3a2c Some code cleanup.
Edgar Simo <bobbens@gmail.com>
parents: 2474
diff changeset
   377
 */
4b874e3a3a2c Some code cleanup.
Edgar Simo <bobbens@gmail.com>
parents: 2474
diff changeset
   378
void
4b874e3a3a2c Some code cleanup.
Edgar Simo <bobbens@gmail.com>
parents: 2474
diff changeset
   379
SDL_SYS_HapticClose(SDL_Haptic * haptic)
4b874e3a3a2c Some code cleanup.
Edgar Simo <bobbens@gmail.com>
parents: 2474
diff changeset
   380
{
2476
242d8a668ebb * Implemented opening and closing of haptic devices.
Edgar Simo <bobbens@gmail.com>
parents: 2475
diff changeset
   381
   if (haptic->hwdata) {
242d8a668ebb * Implemented opening and closing of haptic devices.
Edgar Simo <bobbens@gmail.com>
parents: 2475
diff changeset
   382
242d8a668ebb * Implemented opening and closing of haptic devices.
Edgar Simo <bobbens@gmail.com>
parents: 2475
diff changeset
   383
      /* Clean up */
242d8a668ebb * Implemented opening and closing of haptic devices.
Edgar Simo <bobbens@gmail.com>
parents: 2475
diff changeset
   384
      close(haptic->hwdata->fd);
242d8a668ebb * Implemented opening and closing of haptic devices.
Edgar Simo <bobbens@gmail.com>
parents: 2475
diff changeset
   385
242d8a668ebb * Implemented opening and closing of haptic devices.
Edgar Simo <bobbens@gmail.com>
parents: 2475
diff changeset
   386
      /* Free */
242d8a668ebb * Implemented opening and closing of haptic devices.
Edgar Simo <bobbens@gmail.com>
parents: 2475
diff changeset
   387
      SDL_free(haptic->hwdata);
242d8a668ebb * Implemented opening and closing of haptic devices.
Edgar Simo <bobbens@gmail.com>
parents: 2475
diff changeset
   388
      haptic->hwdata = NULL;
2477
97f75ea43a93 Starting to add infrastructure to handle haptic effects.
Edgar Simo <bobbens@gmail.com>
parents: 2476
diff changeset
   389
      SDL_free(haptic->effects);
97f75ea43a93 Starting to add infrastructure to handle haptic effects.
Edgar Simo <bobbens@gmail.com>
parents: 2476
diff changeset
   390
      haptic->neffects = 0;
2476
242d8a668ebb * Implemented opening and closing of haptic devices.
Edgar Simo <bobbens@gmail.com>
parents: 2475
diff changeset
   391
   }
2475
4b874e3a3a2c Some code cleanup.
Edgar Simo <bobbens@gmail.com>
parents: 2474
diff changeset
   392
}
4b874e3a3a2c Some code cleanup.
Edgar Simo <bobbens@gmail.com>
parents: 2474
diff changeset
   393
4b874e3a3a2c Some code cleanup.
Edgar Simo <bobbens@gmail.com>
parents: 2474
diff changeset
   394
2477
97f75ea43a93 Starting to add infrastructure to handle haptic effects.
Edgar Simo <bobbens@gmail.com>
parents: 2476
diff changeset
   395
/* 
97f75ea43a93 Starting to add infrastructure to handle haptic effects.
Edgar Simo <bobbens@gmail.com>
parents: 2476
diff changeset
   396
 * Clean up after system specific haptic stuff
97f75ea43a93 Starting to add infrastructure to handle haptic effects.
Edgar Simo <bobbens@gmail.com>
parents: 2476
diff changeset
   397
 */
2474
3f80bf1528b4 Properly quit the SDL_haptic subsystem.
Edgar Simo <bobbens@gmail.com>
parents: 2472
diff changeset
   398
void
3f80bf1528b4 Properly quit the SDL_haptic subsystem.
Edgar Simo <bobbens@gmail.com>
parents: 2472
diff changeset
   399
SDL_SYS_HapticQuit(void)
3f80bf1528b4 Properly quit the SDL_haptic subsystem.
Edgar Simo <bobbens@gmail.com>
parents: 2472
diff changeset
   400
{
3f80bf1528b4 Properly quit the SDL_haptic subsystem.
Edgar Simo <bobbens@gmail.com>
parents: 2472
diff changeset
   401
   int i;
3f80bf1528b4 Properly quit the SDL_haptic subsystem.
Edgar Simo <bobbens@gmail.com>
parents: 2472
diff changeset
   402
3f80bf1528b4 Properly quit the SDL_haptic subsystem.
Edgar Simo <bobbens@gmail.com>
parents: 2472
diff changeset
   403
   for (i=0; SDL_hapticlist[i].fname != NULL; i++) {
3f80bf1528b4 Properly quit the SDL_haptic subsystem.
Edgar Simo <bobbens@gmail.com>
parents: 2472
diff changeset
   404
      SDL_free(SDL_hapticlist[i].fname);
3f80bf1528b4 Properly quit the SDL_haptic subsystem.
Edgar Simo <bobbens@gmail.com>
parents: 2472
diff changeset
   405
   }
3f80bf1528b4 Properly quit the SDL_haptic subsystem.
Edgar Simo <bobbens@gmail.com>
parents: 2472
diff changeset
   406
   SDL_hapticlist[0].fname = NULL;
3f80bf1528b4 Properly quit the SDL_haptic subsystem.
Edgar Simo <bobbens@gmail.com>
parents: 2472
diff changeset
   407
}
3f80bf1528b4 Properly quit the SDL_haptic subsystem.
Edgar Simo <bobbens@gmail.com>
parents: 2472
diff changeset
   408
2500
5251d0510b7e Implemented polar coordinates in linux.
Edgar Simo <bobbens@gmail.com>
parents: 2496
diff changeset
   409
/*
5251d0510b7e Implemented polar coordinates in linux.
Edgar Simo <bobbens@gmail.com>
parents: 2496
diff changeset
   410
 * Returns the ff_effect usable direction from a SDL_HapticDirection.
5251d0510b7e Implemented polar coordinates in linux.
Edgar Simo <bobbens@gmail.com>
parents: 2496
diff changeset
   411
 */
5251d0510b7e Implemented polar coordinates in linux.
Edgar Simo <bobbens@gmail.com>
parents: 2496
diff changeset
   412
static Uint16
5251d0510b7e Implemented polar coordinates in linux.
Edgar Simo <bobbens@gmail.com>
parents: 2496
diff changeset
   413
SDL_SYS_ToDirection( SDL_HapticDirection * dir )
5251d0510b7e Implemented polar coordinates in linux.
Edgar Simo <bobbens@gmail.com>
parents: 2496
diff changeset
   414
{
5251d0510b7e Implemented polar coordinates in linux.
Edgar Simo <bobbens@gmail.com>
parents: 2496
diff changeset
   415
   Uint32 tmp;
2511
f12ae0bae468 Fixed bugs in documentation.
Edgar Simo <bobbens@gmail.com>
parents: 2510
diff changeset
   416
   float f; /* Ideally we'd use fixed point math instead of floats... */
2500
5251d0510b7e Implemented polar coordinates in linux.
Edgar Simo <bobbens@gmail.com>
parents: 2496
diff changeset
   417
5251d0510b7e Implemented polar coordinates in linux.
Edgar Simo <bobbens@gmail.com>
parents: 2496
diff changeset
   418
   switch (dir->type) {
5251d0510b7e Implemented polar coordinates in linux.
Edgar Simo <bobbens@gmail.com>
parents: 2496
diff changeset
   419
      case SDL_HAPTIC_POLAR:
2502
5356ca0c36a3 Fixed linux directions being inverted.
Edgar Simo <bobbens@gmail.com>
parents: 2500
diff changeset
   420
         /* Linux directions are inverted. */
5356ca0c36a3 Fixed linux directions being inverted.
Edgar Simo <bobbens@gmail.com>
parents: 2500
diff changeset
   421
         tmp = (((18000 + dir->dir[0]) % 36000) * 0xFFFF) / 36000;
2500
5251d0510b7e Implemented polar coordinates in linux.
Edgar Simo <bobbens@gmail.com>
parents: 2496
diff changeset
   422
         return (Uint16) tmp;
2523
366d84fdf8d1 Haptic subsystem handles haptic axes now.
Edgar Simo <bobbens@gmail.com>
parents: 2519
diff changeset
   423
2500
5251d0510b7e Implemented polar coordinates in linux.
Edgar Simo <bobbens@gmail.com>
parents: 2496
diff changeset
   424
      case SDL_HAPTIC_CARTESIAN:
2511
f12ae0bae468 Fixed bugs in documentation.
Edgar Simo <bobbens@gmail.com>
parents: 2510
diff changeset
   425
         /* We must invert "x" and "y" to go clockwise. */
2510
e6ad7e678fca Implemented SDL_HAPTIC_CARTESIAN on linux.
Edgar Simo <bobbens@gmail.com>
parents: 2503
diff changeset
   426
         f = atan2(dir->dir[0], dir->dir[1]);
e6ad7e678fca Implemented SDL_HAPTIC_CARTESIAN on linux.
Edgar Simo <bobbens@gmail.com>
parents: 2503
diff changeset
   427
         tmp = (int)(f*18000./M_PI) % 36000;
e6ad7e678fca Implemented SDL_HAPTIC_CARTESIAN on linux.
Edgar Simo <bobbens@gmail.com>
parents: 2503
diff changeset
   428
         tmp = (tmp * 0xFFFF) / 36000;
e6ad7e678fca Implemented SDL_HAPTIC_CARTESIAN on linux.
Edgar Simo <bobbens@gmail.com>
parents: 2503
diff changeset
   429
         return (Uint16) tmp;
2500
5251d0510b7e Implemented polar coordinates in linux.
Edgar Simo <bobbens@gmail.com>
parents: 2496
diff changeset
   430
2523
366d84fdf8d1 Haptic subsystem handles haptic axes now.
Edgar Simo <bobbens@gmail.com>
parents: 2519
diff changeset
   431
      case SDL_HAPTIC_SPHERICAL:
366d84fdf8d1 Haptic subsystem handles haptic axes now.
Edgar Simo <bobbens@gmail.com>
parents: 2519
diff changeset
   432
         tmp = (36000 - dir->dir[0]) + 27000; /* Convert to polars */
366d84fdf8d1 Haptic subsystem handles haptic axes now.
Edgar Simo <bobbens@gmail.com>
parents: 2519
diff changeset
   433
         tmp = (((18000 + tmp) % 36000) * 0xFFFF) / 36000;
366d84fdf8d1 Haptic subsystem handles haptic axes now.
Edgar Simo <bobbens@gmail.com>
parents: 2519
diff changeset
   434
         return (Uint16) tmp;
366d84fdf8d1 Haptic subsystem handles haptic axes now.
Edgar Simo <bobbens@gmail.com>
parents: 2519
diff changeset
   435
2500
5251d0510b7e Implemented polar coordinates in linux.
Edgar Simo <bobbens@gmail.com>
parents: 2496
diff changeset
   436
      default:
2523
366d84fdf8d1 Haptic subsystem handles haptic axes now.
Edgar Simo <bobbens@gmail.com>
parents: 2519
diff changeset
   437
         SDL_SetError("Haptic: Unsupported direction type.");
2500
5251d0510b7e Implemented polar coordinates in linux.
Edgar Simo <bobbens@gmail.com>
parents: 2496
diff changeset
   438
         return -1;
5251d0510b7e Implemented polar coordinates in linux.
Edgar Simo <bobbens@gmail.com>
parents: 2496
diff changeset
   439
   }
5251d0510b7e Implemented polar coordinates in linux.
Edgar Simo <bobbens@gmail.com>
parents: 2496
diff changeset
   440
5251d0510b7e Implemented polar coordinates in linux.
Edgar Simo <bobbens@gmail.com>
parents: 2496
diff changeset
   441
   return 0;
5251d0510b7e Implemented polar coordinates in linux.
Edgar Simo <bobbens@gmail.com>
parents: 2496
diff changeset
   442
}
5251d0510b7e Implemented polar coordinates in linux.
Edgar Simo <bobbens@gmail.com>
parents: 2496
diff changeset
   443
2481
5d0ea4576f20 More comments.
Edgar Simo <bobbens@gmail.com>
parents: 2480
diff changeset
   444
#define  CLAMP(x)    (((x) > 32767) ? 32767 : x)
2477
97f75ea43a93 Starting to add infrastructure to handle haptic effects.
Edgar Simo <bobbens@gmail.com>
parents: 2476
diff changeset
   445
/*
2479
b9eb2cfe16cd Added some preliminary support for haptic effect control.
Edgar Simo <bobbens@gmail.com>
parents: 2478
diff changeset
   446
 * Initializes the linux effect struct from a haptic_effect.
2481
5d0ea4576f20 More comments.
Edgar Simo <bobbens@gmail.com>
parents: 2480
diff changeset
   447
 * Values above 32767 (for unsigned) are unspecified so we must clamp.
2479
b9eb2cfe16cd Added some preliminary support for haptic effect control.
Edgar Simo <bobbens@gmail.com>
parents: 2478
diff changeset
   448
 */
b9eb2cfe16cd Added some preliminary support for haptic effect control.
Edgar Simo <bobbens@gmail.com>
parents: 2478
diff changeset
   449
static int
2480
b883974445fc Some more error reporting.
Edgar Simo <bobbens@gmail.com>
parents: 2479
diff changeset
   450
SDL_SYS_ToFFEffect( struct ff_effect * dest, SDL_HapticEffect * src )
2479
b9eb2cfe16cd Added some preliminary support for haptic effect control.
Edgar Simo <bobbens@gmail.com>
parents: 2478
diff changeset
   451
{
2480
b883974445fc Some more error reporting.
Edgar Simo <bobbens@gmail.com>
parents: 2479
diff changeset
   452
   SDL_HapticConstant *constant;
b883974445fc Some more error reporting.
Edgar Simo <bobbens@gmail.com>
parents: 2479
diff changeset
   453
   SDL_HapticPeriodic *periodic;
2482
b51ad78812d5 Removed the linux only SDL_HAPTIC_RUMBLE (use PERIODIC instead).
Edgar Simo <bobbens@gmail.com>
parents: 2481
diff changeset
   454
   SDL_HapticCondition *condition;
b51ad78812d5 Removed the linux only SDL_HAPTIC_RUMBLE (use PERIODIC instead).
Edgar Simo <bobbens@gmail.com>
parents: 2481
diff changeset
   455
   SDL_HapticRamp *ramp;
2480
b883974445fc Some more error reporting.
Edgar Simo <bobbens@gmail.com>
parents: 2479
diff changeset
   456
b883974445fc Some more error reporting.
Edgar Simo <bobbens@gmail.com>
parents: 2479
diff changeset
   457
   /* Clear up */
2479
b9eb2cfe16cd Added some preliminary support for haptic effect control.
Edgar Simo <bobbens@gmail.com>
parents: 2478
diff changeset
   458
   SDL_memset(dest, 0, sizeof(struct ff_effect));
2480
b883974445fc Some more error reporting.
Edgar Simo <bobbens@gmail.com>
parents: 2479
diff changeset
   459
b883974445fc Some more error reporting.
Edgar Simo <bobbens@gmail.com>
parents: 2479
diff changeset
   460
   switch (src->type) {
2479
b9eb2cfe16cd Added some preliminary support for haptic effect control.
Edgar Simo <bobbens@gmail.com>
parents: 2478
diff changeset
   461
      case SDL_HAPTIC_CONSTANT:
2480
b883974445fc Some more error reporting.
Edgar Simo <bobbens@gmail.com>
parents: 2479
diff changeset
   462
         constant = &src->constant;
b883974445fc Some more error reporting.
Edgar Simo <bobbens@gmail.com>
parents: 2479
diff changeset
   463
b883974445fc Some more error reporting.
Edgar Simo <bobbens@gmail.com>
parents: 2479
diff changeset
   464
         /* Header */
2479
b9eb2cfe16cd Added some preliminary support for haptic effect control.
Edgar Simo <bobbens@gmail.com>
parents: 2478
diff changeset
   465
         dest->type = FF_CONSTANT;
2500
5251d0510b7e Implemented polar coordinates in linux.
Edgar Simo <bobbens@gmail.com>
parents: 2496
diff changeset
   466
         dest->direction = SDL_SYS_ToDirection(&constant->direction);
2523
366d84fdf8d1 Haptic subsystem handles haptic axes now.
Edgar Simo <bobbens@gmail.com>
parents: 2519
diff changeset
   467
         if (dest->direction < 0) return -1;
2480
b883974445fc Some more error reporting.
Edgar Simo <bobbens@gmail.com>
parents: 2479
diff changeset
   468
b883974445fc Some more error reporting.
Edgar Simo <bobbens@gmail.com>
parents: 2479
diff changeset
   469
         /* Replay */
2481
5d0ea4576f20 More comments.
Edgar Simo <bobbens@gmail.com>
parents: 2480
diff changeset
   470
         dest->replay.length = CLAMP(constant->length);
5d0ea4576f20 More comments.
Edgar Simo <bobbens@gmail.com>
parents: 2480
diff changeset
   471
         dest->replay.delay = CLAMP(constant->delay);
2480
b883974445fc Some more error reporting.
Edgar Simo <bobbens@gmail.com>
parents: 2479
diff changeset
   472
b883974445fc Some more error reporting.
Edgar Simo <bobbens@gmail.com>
parents: 2479
diff changeset
   473
         /* Trigger */
2481
5d0ea4576f20 More comments.
Edgar Simo <bobbens@gmail.com>
parents: 2480
diff changeset
   474
         dest->trigger.button = CLAMP(constant->button);
5d0ea4576f20 More comments.
Edgar Simo <bobbens@gmail.com>
parents: 2480
diff changeset
   475
         dest->trigger.interval = CLAMP(constant->interval);
2480
b883974445fc Some more error reporting.
Edgar Simo <bobbens@gmail.com>
parents: 2479
diff changeset
   476
b883974445fc Some more error reporting.
Edgar Simo <bobbens@gmail.com>
parents: 2479
diff changeset
   477
         /* Constant */
b883974445fc Some more error reporting.
Edgar Simo <bobbens@gmail.com>
parents: 2479
diff changeset
   478
         dest->u.constant.level = constant->level;
b883974445fc Some more error reporting.
Edgar Simo <bobbens@gmail.com>
parents: 2479
diff changeset
   479
b883974445fc Some more error reporting.
Edgar Simo <bobbens@gmail.com>
parents: 2479
diff changeset
   480
         /* Envelope */
2481
5d0ea4576f20 More comments.
Edgar Simo <bobbens@gmail.com>
parents: 2480
diff changeset
   481
         dest->u.constant.envelope.attack_length = CLAMP(constant->attack_length);
5d0ea4576f20 More comments.
Edgar Simo <bobbens@gmail.com>
parents: 2480
diff changeset
   482
         dest->u.constant.envelope.attack_level = CLAMP(constant->attack_level);
5d0ea4576f20 More comments.
Edgar Simo <bobbens@gmail.com>
parents: 2480
diff changeset
   483
         dest->u.constant.envelope.fade_length = CLAMP(constant->fade_length);
5d0ea4576f20 More comments.
Edgar Simo <bobbens@gmail.com>
parents: 2480
diff changeset
   484
         dest->u.constant.envelope.fade_level = CLAMP(constant->fade_level);
2480
b883974445fc Some more error reporting.
Edgar Simo <bobbens@gmail.com>
parents: 2479
diff changeset
   485
b883974445fc Some more error reporting.
Edgar Simo <bobbens@gmail.com>
parents: 2479
diff changeset
   486
         break;
b883974445fc Some more error reporting.
Edgar Simo <bobbens@gmail.com>
parents: 2479
diff changeset
   487
2487
4c8e25ef2d97 Merged seperate waveforms into types to be more compatible.
Edgar Simo <bobbens@gmail.com>
parents: 2486
diff changeset
   488
      case SDL_HAPTIC_SINE:
4c8e25ef2d97 Merged seperate waveforms into types to be more compatible.
Edgar Simo <bobbens@gmail.com>
parents: 2486
diff changeset
   489
      case SDL_HAPTIC_SQUARE:
4c8e25ef2d97 Merged seperate waveforms into types to be more compatible.
Edgar Simo <bobbens@gmail.com>
parents: 2486
diff changeset
   490
      case SDL_HAPTIC_TRIANGLE:
4c8e25ef2d97 Merged seperate waveforms into types to be more compatible.
Edgar Simo <bobbens@gmail.com>
parents: 2486
diff changeset
   491
      case SDL_HAPTIC_SAWTOOTHUP:
4c8e25ef2d97 Merged seperate waveforms into types to be more compatible.
Edgar Simo <bobbens@gmail.com>
parents: 2486
diff changeset
   492
      case SDL_HAPTIC_SAWTOOTHDOWN:
2480
b883974445fc Some more error reporting.
Edgar Simo <bobbens@gmail.com>
parents: 2479
diff changeset
   493
         periodic = &src->periodic;
b883974445fc Some more error reporting.
Edgar Simo <bobbens@gmail.com>
parents: 2479
diff changeset
   494
b883974445fc Some more error reporting.
Edgar Simo <bobbens@gmail.com>
parents: 2479
diff changeset
   495
         /* Header */
b883974445fc Some more error reporting.
Edgar Simo <bobbens@gmail.com>
parents: 2479
diff changeset
   496
         dest->type = FF_PERIODIC;
2500
5251d0510b7e Implemented polar coordinates in linux.
Edgar Simo <bobbens@gmail.com>
parents: 2496
diff changeset
   497
         dest->direction = SDL_SYS_ToDirection(&periodic->direction);
2523
366d84fdf8d1 Haptic subsystem handles haptic axes now.
Edgar Simo <bobbens@gmail.com>
parents: 2519
diff changeset
   498
         if (dest->direction < 0) return -1;
2480
b883974445fc Some more error reporting.
Edgar Simo <bobbens@gmail.com>
parents: 2479
diff changeset
   499
         
b883974445fc Some more error reporting.
Edgar Simo <bobbens@gmail.com>
parents: 2479
diff changeset
   500
         /* Replay */
2481
5d0ea4576f20 More comments.
Edgar Simo <bobbens@gmail.com>
parents: 2480
diff changeset
   501
         dest->replay.length = CLAMP(periodic->length);
5d0ea4576f20 More comments.
Edgar Simo <bobbens@gmail.com>
parents: 2480
diff changeset
   502
         dest->replay.delay = CLAMP(periodic->delay);
2480
b883974445fc Some more error reporting.
Edgar Simo <bobbens@gmail.com>
parents: 2479
diff changeset
   503
         
b883974445fc Some more error reporting.
Edgar Simo <bobbens@gmail.com>
parents: 2479
diff changeset
   504
         /* Trigger */
2481
5d0ea4576f20 More comments.
Edgar Simo <bobbens@gmail.com>
parents: 2480
diff changeset
   505
         dest->trigger.button = CLAMP(periodic->button);
5d0ea4576f20 More comments.
Edgar Simo <bobbens@gmail.com>
parents: 2480
diff changeset
   506
         dest->trigger.interval = CLAMP(periodic->interval);
2480
b883974445fc Some more error reporting.
Edgar Simo <bobbens@gmail.com>
parents: 2479
diff changeset
   507
         
2487
4c8e25ef2d97 Merged seperate waveforms into types to be more compatible.
Edgar Simo <bobbens@gmail.com>
parents: 2486
diff changeset
   508
         /* Periodic */
4c8e25ef2d97 Merged seperate waveforms into types to be more compatible.
Edgar Simo <bobbens@gmail.com>
parents: 2486
diff changeset
   509
         if (periodic->type == SDL_HAPTIC_SINE)
4c8e25ef2d97 Merged seperate waveforms into types to be more compatible.
Edgar Simo <bobbens@gmail.com>
parents: 2486
diff changeset
   510
            dest->u.periodic.waveform = FF_SINE;
4c8e25ef2d97 Merged seperate waveforms into types to be more compatible.
Edgar Simo <bobbens@gmail.com>
parents: 2486
diff changeset
   511
         else if (periodic->type == SDL_HAPTIC_SQUARE)
4c8e25ef2d97 Merged seperate waveforms into types to be more compatible.
Edgar Simo <bobbens@gmail.com>
parents: 2486
diff changeset
   512
            dest->u.periodic.waveform = FF_SQUARE;
4c8e25ef2d97 Merged seperate waveforms into types to be more compatible.
Edgar Simo <bobbens@gmail.com>
parents: 2486
diff changeset
   513
         else if (periodic->type == SDL_HAPTIC_TRIANGLE)       
4c8e25ef2d97 Merged seperate waveforms into types to be more compatible.
Edgar Simo <bobbens@gmail.com>
parents: 2486
diff changeset
   514
            dest->u.periodic.waveform = FF_TRIANGLE;
4c8e25ef2d97 Merged seperate waveforms into types to be more compatible.
Edgar Simo <bobbens@gmail.com>
parents: 2486
diff changeset
   515
         else if (periodic->type == SDL_HAPTIC_SAWTOOTHUP)       
4c8e25ef2d97 Merged seperate waveforms into types to be more compatible.
Edgar Simo <bobbens@gmail.com>
parents: 2486
diff changeset
   516
            dest->u.periodic.waveform = FF_SAW_UP;
4c8e25ef2d97 Merged seperate waveforms into types to be more compatible.
Edgar Simo <bobbens@gmail.com>
parents: 2486
diff changeset
   517
         else if (periodic->type == SDL_HAPTIC_SAWTOOTHDOWN)       
4c8e25ef2d97 Merged seperate waveforms into types to be more compatible.
Edgar Simo <bobbens@gmail.com>
parents: 2486
diff changeset
   518
            dest->u.periodic.waveform = FF_SAW_DOWN;
2481
5d0ea4576f20 More comments.
Edgar Simo <bobbens@gmail.com>
parents: 2480
diff changeset
   519
         dest->u.periodic.period = CLAMP(periodic->period);
2480
b883974445fc Some more error reporting.
Edgar Simo <bobbens@gmail.com>
parents: 2479
diff changeset
   520
         dest->u.periodic.magnitude = periodic->magnitude;
b883974445fc Some more error reporting.
Edgar Simo <bobbens@gmail.com>
parents: 2479
diff changeset
   521
         dest->u.periodic.offset = periodic->offset;
2481
5d0ea4576f20 More comments.
Edgar Simo <bobbens@gmail.com>
parents: 2480
diff changeset
   522
         dest->u.periodic.phase = CLAMP(periodic->phase);
2480
b883974445fc Some more error reporting.
Edgar Simo <bobbens@gmail.com>
parents: 2479
diff changeset
   523
         
b883974445fc Some more error reporting.
Edgar Simo <bobbens@gmail.com>
parents: 2479
diff changeset
   524
         /* Envelope */
2481
5d0ea4576f20 More comments.
Edgar Simo <bobbens@gmail.com>
parents: 2480
diff changeset
   525
         dest->u.periodic.envelope.attack_length = CLAMP(periodic->attack_length);
5d0ea4576f20 More comments.
Edgar Simo <bobbens@gmail.com>
parents: 2480
diff changeset
   526
         dest->u.periodic.envelope.attack_level = CLAMP(periodic->attack_level);
5d0ea4576f20 More comments.
Edgar Simo <bobbens@gmail.com>
parents: 2480
diff changeset
   527
         dest->u.periodic.envelope.fade_length = CLAMP(periodic->fade_length);
5d0ea4576f20 More comments.
Edgar Simo <bobbens@gmail.com>
parents: 2480
diff changeset
   528
         dest->u.periodic.envelope.fade_level = CLAMP(periodic->fade_level);
2479
b9eb2cfe16cd Added some preliminary support for haptic effect control.
Edgar Simo <bobbens@gmail.com>
parents: 2478
diff changeset
   529
b9eb2cfe16cd Added some preliminary support for haptic effect control.
Edgar Simo <bobbens@gmail.com>
parents: 2478
diff changeset
   530
         break;
b9eb2cfe16cd Added some preliminary support for haptic effect control.
Edgar Simo <bobbens@gmail.com>
parents: 2478
diff changeset
   531
2482
b51ad78812d5 Removed the linux only SDL_HAPTIC_RUMBLE (use PERIODIC instead).
Edgar Simo <bobbens@gmail.com>
parents: 2481
diff changeset
   532
      case SDL_HAPTIC_SPRING:
b51ad78812d5 Removed the linux only SDL_HAPTIC_RUMBLE (use PERIODIC instead).
Edgar Simo <bobbens@gmail.com>
parents: 2481
diff changeset
   533
      case SDL_HAPTIC_DAMPER:
b51ad78812d5 Removed the linux only SDL_HAPTIC_RUMBLE (use PERIODIC instead).
Edgar Simo <bobbens@gmail.com>
parents: 2481
diff changeset
   534
      case SDL_HAPTIC_INERTIA:
b51ad78812d5 Removed the linux only SDL_HAPTIC_RUMBLE (use PERIODIC instead).
Edgar Simo <bobbens@gmail.com>
parents: 2481
diff changeset
   535
      case SDL_HAPTIC_FRICTION:
b51ad78812d5 Removed the linux only SDL_HAPTIC_RUMBLE (use PERIODIC instead).
Edgar Simo <bobbens@gmail.com>
parents: 2481
diff changeset
   536
         condition = &src->condition;
b51ad78812d5 Removed the linux only SDL_HAPTIC_RUMBLE (use PERIODIC instead).
Edgar Simo <bobbens@gmail.com>
parents: 2481
diff changeset
   537
b51ad78812d5 Removed the linux only SDL_HAPTIC_RUMBLE (use PERIODIC instead).
Edgar Simo <bobbens@gmail.com>
parents: 2481
diff changeset
   538
         /* Header */
2503
84a634009a83 Another important typo mistake.
Edgar Simo <bobbens@gmail.com>
parents: 2502
diff changeset
   539
         if (condition->type == SDL_HAPTIC_SPRING)
2482
b51ad78812d5 Removed the linux only SDL_HAPTIC_RUMBLE (use PERIODIC instead).
Edgar Simo <bobbens@gmail.com>
parents: 2481
diff changeset
   540
            dest->type = FF_SPRING;
2503
84a634009a83 Another important typo mistake.
Edgar Simo <bobbens@gmail.com>
parents: 2502
diff changeset
   541
         else if (condition->type == SDL_HAPTIC_DAMPER)
2482
b51ad78812d5 Removed the linux only SDL_HAPTIC_RUMBLE (use PERIODIC instead).
Edgar Simo <bobbens@gmail.com>
parents: 2481
diff changeset
   542
            dest->type = FF_DAMPER;
2503
84a634009a83 Another important typo mistake.
Edgar Simo <bobbens@gmail.com>
parents: 2502
diff changeset
   543
         else if (condition->type == SDL_HAPTIC_INERTIA)
2482
b51ad78812d5 Removed the linux only SDL_HAPTIC_RUMBLE (use PERIODIC instead).
Edgar Simo <bobbens@gmail.com>
parents: 2481
diff changeset
   544
            dest->type = FF_INERTIA;
2503
84a634009a83 Another important typo mistake.
Edgar Simo <bobbens@gmail.com>
parents: 2502
diff changeset
   545
         else if (condition->type == SDL_HAPTIC_FRICTION)
2482
b51ad78812d5 Removed the linux only SDL_HAPTIC_RUMBLE (use PERIODIC instead).
Edgar Simo <bobbens@gmail.com>
parents: 2481
diff changeset
   546
            dest->type = FF_FRICTION;
2500
5251d0510b7e Implemented polar coordinates in linux.
Edgar Simo <bobbens@gmail.com>
parents: 2496
diff changeset
   547
         dest->direction = 0; /* Handled by the condition-specifics. */
2482
b51ad78812d5 Removed the linux only SDL_HAPTIC_RUMBLE (use PERIODIC instead).
Edgar Simo <bobbens@gmail.com>
parents: 2481
diff changeset
   548
b51ad78812d5 Removed the linux only SDL_HAPTIC_RUMBLE (use PERIODIC instead).
Edgar Simo <bobbens@gmail.com>
parents: 2481
diff changeset
   549
         /* Replay */
b51ad78812d5 Removed the linux only SDL_HAPTIC_RUMBLE (use PERIODIC instead).
Edgar Simo <bobbens@gmail.com>
parents: 2481
diff changeset
   550
         dest->replay.length = CLAMP(condition->length);
b51ad78812d5 Removed the linux only SDL_HAPTIC_RUMBLE (use PERIODIC instead).
Edgar Simo <bobbens@gmail.com>
parents: 2481
diff changeset
   551
         dest->replay.delay = CLAMP(condition->delay);
b51ad78812d5 Removed the linux only SDL_HAPTIC_RUMBLE (use PERIODIC instead).
Edgar Simo <bobbens@gmail.com>
parents: 2481
diff changeset
   552
b51ad78812d5 Removed the linux only SDL_HAPTIC_RUMBLE (use PERIODIC instead).
Edgar Simo <bobbens@gmail.com>
parents: 2481
diff changeset
   553
         /* Trigger */
b51ad78812d5 Removed the linux only SDL_HAPTIC_RUMBLE (use PERIODIC instead).
Edgar Simo <bobbens@gmail.com>
parents: 2481
diff changeset
   554
         dest->trigger.button = CLAMP(condition->button);
b51ad78812d5 Removed the linux only SDL_HAPTIC_RUMBLE (use PERIODIC instead).
Edgar Simo <bobbens@gmail.com>
parents: 2481
diff changeset
   555
         dest->trigger.interval = CLAMP(condition->interval);
b51ad78812d5 Removed the linux only SDL_HAPTIC_RUMBLE (use PERIODIC instead).
Edgar Simo <bobbens@gmail.com>
parents: 2481
diff changeset
   556
2500
5251d0510b7e Implemented polar coordinates in linux.
Edgar Simo <bobbens@gmail.com>
parents: 2496
diff changeset
   557
         /* Condition */
5251d0510b7e Implemented polar coordinates in linux.
Edgar Simo <bobbens@gmail.com>
parents: 2496
diff changeset
   558
         /* X axis */
5251d0510b7e Implemented polar coordinates in linux.
Edgar Simo <bobbens@gmail.com>
parents: 2496
diff changeset
   559
         dest->u.condition[0].right_saturation = CLAMP(condition->right_sat[0]);
5251d0510b7e Implemented polar coordinates in linux.
Edgar Simo <bobbens@gmail.com>
parents: 2496
diff changeset
   560
         dest->u.condition[0].left_saturation = CLAMP(condition->left_sat[0]);
5251d0510b7e Implemented polar coordinates in linux.
Edgar Simo <bobbens@gmail.com>
parents: 2496
diff changeset
   561
         dest->u.condition[0].right_coeff = condition->right_coeff[0];
5251d0510b7e Implemented polar coordinates in linux.
Edgar Simo <bobbens@gmail.com>
parents: 2496
diff changeset
   562
         dest->u.condition[0].left_coeff = condition->left_coeff[0];
5251d0510b7e Implemented polar coordinates in linux.
Edgar Simo <bobbens@gmail.com>
parents: 2496
diff changeset
   563
         dest->u.condition[0].deadband = CLAMP(condition->deadband[0]);
5251d0510b7e Implemented polar coordinates in linux.
Edgar Simo <bobbens@gmail.com>
parents: 2496
diff changeset
   564
         dest->u.condition[0].center = condition->center[0];
5251d0510b7e Implemented polar coordinates in linux.
Edgar Simo <bobbens@gmail.com>
parents: 2496
diff changeset
   565
         /* Y axis */
5251d0510b7e Implemented polar coordinates in linux.
Edgar Simo <bobbens@gmail.com>
parents: 2496
diff changeset
   566
         dest->u.condition[1].right_saturation = CLAMP(condition->right_sat[1]);
5251d0510b7e Implemented polar coordinates in linux.
Edgar Simo <bobbens@gmail.com>
parents: 2496
diff changeset
   567
         dest->u.condition[1].left_saturation = CLAMP(condition->left_sat[1]);
5251d0510b7e Implemented polar coordinates in linux.
Edgar Simo <bobbens@gmail.com>
parents: 2496
diff changeset
   568
         dest->u.condition[1].right_coeff = condition->right_coeff[1];
5251d0510b7e Implemented polar coordinates in linux.
Edgar Simo <bobbens@gmail.com>
parents: 2496
diff changeset
   569
         dest->u.condition[1].left_coeff = condition->left_coeff[1];  
5251d0510b7e Implemented polar coordinates in linux.
Edgar Simo <bobbens@gmail.com>
parents: 2496
diff changeset
   570
         dest->u.condition[1].deadband = CLAMP(condition->deadband[1]);
5251d0510b7e Implemented polar coordinates in linux.
Edgar Simo <bobbens@gmail.com>
parents: 2496
diff changeset
   571
         dest->u.condition[1].center = condition->center[1];
2482
b51ad78812d5 Removed the linux only SDL_HAPTIC_RUMBLE (use PERIODIC instead).
Edgar Simo <bobbens@gmail.com>
parents: 2481
diff changeset
   572
b51ad78812d5 Removed the linux only SDL_HAPTIC_RUMBLE (use PERIODIC instead).
Edgar Simo <bobbens@gmail.com>
parents: 2481
diff changeset
   573
         break;
b51ad78812d5 Removed the linux only SDL_HAPTIC_RUMBLE (use PERIODIC instead).
Edgar Simo <bobbens@gmail.com>
parents: 2481
diff changeset
   574
b51ad78812d5 Removed the linux only SDL_HAPTIC_RUMBLE (use PERIODIC instead).
Edgar Simo <bobbens@gmail.com>
parents: 2481
diff changeset
   575
      case SDL_HAPTIC_RAMP:
b51ad78812d5 Removed the linux only SDL_HAPTIC_RUMBLE (use PERIODIC instead).
Edgar Simo <bobbens@gmail.com>
parents: 2481
diff changeset
   576
         ramp = &src->ramp;
b51ad78812d5 Removed the linux only SDL_HAPTIC_RUMBLE (use PERIODIC instead).
Edgar Simo <bobbens@gmail.com>
parents: 2481
diff changeset
   577
b51ad78812d5 Removed the linux only SDL_HAPTIC_RUMBLE (use PERIODIC instead).
Edgar Simo <bobbens@gmail.com>
parents: 2481
diff changeset
   578
         /* Header */
b51ad78812d5 Removed the linux only SDL_HAPTIC_RUMBLE (use PERIODIC instead).
Edgar Simo <bobbens@gmail.com>
parents: 2481
diff changeset
   579
         dest->type = FF_RAMP;
2500
5251d0510b7e Implemented polar coordinates in linux.
Edgar Simo <bobbens@gmail.com>
parents: 2496
diff changeset
   580
         dest->direction = SDL_SYS_ToDirection(&ramp->direction);
2523
366d84fdf8d1 Haptic subsystem handles haptic axes now.
Edgar Simo <bobbens@gmail.com>
parents: 2519
diff changeset
   581
         if (dest->direction < 0) return -1;
2482
b51ad78812d5 Removed the linux only SDL_HAPTIC_RUMBLE (use PERIODIC instead).
Edgar Simo <bobbens@gmail.com>
parents: 2481
diff changeset
   582
b51ad78812d5 Removed the linux only SDL_HAPTIC_RUMBLE (use PERIODIC instead).
Edgar Simo <bobbens@gmail.com>
parents: 2481
diff changeset
   583
         /* Replay */
b51ad78812d5 Removed the linux only SDL_HAPTIC_RUMBLE (use PERIODIC instead).
Edgar Simo <bobbens@gmail.com>
parents: 2481
diff changeset
   584
         dest->replay.length = CLAMP(ramp->length);
b51ad78812d5 Removed the linux only SDL_HAPTIC_RUMBLE (use PERIODIC instead).
Edgar Simo <bobbens@gmail.com>
parents: 2481
diff changeset
   585
         dest->replay.delay = CLAMP(ramp->delay);
b51ad78812d5 Removed the linux only SDL_HAPTIC_RUMBLE (use PERIODIC instead).
Edgar Simo <bobbens@gmail.com>
parents: 2481
diff changeset
   586
b51ad78812d5 Removed the linux only SDL_HAPTIC_RUMBLE (use PERIODIC instead).
Edgar Simo <bobbens@gmail.com>
parents: 2481
diff changeset
   587
         /* Trigger */
b51ad78812d5 Removed the linux only SDL_HAPTIC_RUMBLE (use PERIODIC instead).
Edgar Simo <bobbens@gmail.com>
parents: 2481
diff changeset
   588
         dest->trigger.button = CLAMP(ramp->button);
b51ad78812d5 Removed the linux only SDL_HAPTIC_RUMBLE (use PERIODIC instead).
Edgar Simo <bobbens@gmail.com>
parents: 2481
diff changeset
   589
         dest->trigger.interval = CLAMP(ramp->interval);
b51ad78812d5 Removed the linux only SDL_HAPTIC_RUMBLE (use PERIODIC instead).
Edgar Simo <bobbens@gmail.com>
parents: 2481
diff changeset
   590
b51ad78812d5 Removed the linux only SDL_HAPTIC_RUMBLE (use PERIODIC instead).
Edgar Simo <bobbens@gmail.com>
parents: 2481
diff changeset
   591
         /* Ramp */
b51ad78812d5 Removed the linux only SDL_HAPTIC_RUMBLE (use PERIODIC instead).
Edgar Simo <bobbens@gmail.com>
parents: 2481
diff changeset
   592
         dest->u.ramp.start_level = ramp->start;
b51ad78812d5 Removed the linux only SDL_HAPTIC_RUMBLE (use PERIODIC instead).
Edgar Simo <bobbens@gmail.com>
parents: 2481
diff changeset
   593
         dest->u.ramp.end_level = ramp->end;
b51ad78812d5 Removed the linux only SDL_HAPTIC_RUMBLE (use PERIODIC instead).
Edgar Simo <bobbens@gmail.com>
parents: 2481
diff changeset
   594
b51ad78812d5 Removed the linux only SDL_HAPTIC_RUMBLE (use PERIODIC instead).
Edgar Simo <bobbens@gmail.com>
parents: 2481
diff changeset
   595
         /* Envelope */
b51ad78812d5 Removed the linux only SDL_HAPTIC_RUMBLE (use PERIODIC instead).
Edgar Simo <bobbens@gmail.com>
parents: 2481
diff changeset
   596
         dest->u.ramp.envelope.attack_length = CLAMP(ramp->attack_length);
b51ad78812d5 Removed the linux only SDL_HAPTIC_RUMBLE (use PERIODIC instead).
Edgar Simo <bobbens@gmail.com>
parents: 2481
diff changeset
   597
         dest->u.ramp.envelope.attack_level = CLAMP(ramp->attack_level);
b51ad78812d5 Removed the linux only SDL_HAPTIC_RUMBLE (use PERIODIC instead).
Edgar Simo <bobbens@gmail.com>
parents: 2481
diff changeset
   598
         dest->u.ramp.envelope.fade_length = CLAMP(ramp->fade_length);
b51ad78812d5 Removed the linux only SDL_HAPTIC_RUMBLE (use PERIODIC instead).
Edgar Simo <bobbens@gmail.com>
parents: 2481
diff changeset
   599
         dest->u.ramp.envelope.fade_level = CLAMP(ramp->fade_level);
b51ad78812d5 Removed the linux only SDL_HAPTIC_RUMBLE (use PERIODIC instead).
Edgar Simo <bobbens@gmail.com>
parents: 2481
diff changeset
   600
b51ad78812d5 Removed the linux only SDL_HAPTIC_RUMBLE (use PERIODIC instead).
Edgar Simo <bobbens@gmail.com>
parents: 2481
diff changeset
   601
         break;
b51ad78812d5 Removed the linux only SDL_HAPTIC_RUMBLE (use PERIODIC instead).
Edgar Simo <bobbens@gmail.com>
parents: 2481
diff changeset
   602
b51ad78812d5 Removed the linux only SDL_HAPTIC_RUMBLE (use PERIODIC instead).
Edgar Simo <bobbens@gmail.com>
parents: 2481
diff changeset
   603
2479
b9eb2cfe16cd Added some preliminary support for haptic effect control.
Edgar Simo <bobbens@gmail.com>
parents: 2478
diff changeset
   604
      default:
2513
55fd9103a330 Prefixed all haptic errors with "Haptic:" for easier readability.
Edgar Simo <bobbens@gmail.com>
parents: 2512
diff changeset
   605
         SDL_SetError("Haptic: Unknown effect type.");
2479
b9eb2cfe16cd Added some preliminary support for haptic effect control.
Edgar Simo <bobbens@gmail.com>
parents: 2478
diff changeset
   606
         return -1;
b9eb2cfe16cd Added some preliminary support for haptic effect control.
Edgar Simo <bobbens@gmail.com>
parents: 2478
diff changeset
   607
   }
b9eb2cfe16cd Added some preliminary support for haptic effect control.
Edgar Simo <bobbens@gmail.com>
parents: 2478
diff changeset
   608
b9eb2cfe16cd Added some preliminary support for haptic effect control.
Edgar Simo <bobbens@gmail.com>
parents: 2478
diff changeset
   609
   return 0;
b9eb2cfe16cd Added some preliminary support for haptic effect control.
Edgar Simo <bobbens@gmail.com>
parents: 2478
diff changeset
   610
}
b9eb2cfe16cd Added some preliminary support for haptic effect control.
Edgar Simo <bobbens@gmail.com>
parents: 2478
diff changeset
   611
2483
9d52368ebcf5 Setting effects memory to 0.
Edgar Simo <bobbens@gmail.com>
parents: 2482
diff changeset
   612
2479
b9eb2cfe16cd Added some preliminary support for haptic effect control.
Edgar Simo <bobbens@gmail.com>
parents: 2478
diff changeset
   613
/*
2477
97f75ea43a93 Starting to add infrastructure to handle haptic effects.
Edgar Simo <bobbens@gmail.com>
parents: 2476
diff changeset
   614
 * Creates a new haptic effect.
97f75ea43a93 Starting to add infrastructure to handle haptic effects.
Edgar Simo <bobbens@gmail.com>
parents: 2476
diff changeset
   615
 */
97f75ea43a93 Starting to add infrastructure to handle haptic effects.
Edgar Simo <bobbens@gmail.com>
parents: 2476
diff changeset
   616
int
2480
b883974445fc Some more error reporting.
Edgar Simo <bobbens@gmail.com>
parents: 2479
diff changeset
   617
SDL_SYS_HapticNewEffect(SDL_Haptic * haptic, struct haptic_effect * effect,
b883974445fc Some more error reporting.
Edgar Simo <bobbens@gmail.com>
parents: 2479
diff changeset
   618
      SDL_HapticEffect * base)
2477
97f75ea43a93 Starting to add infrastructure to handle haptic effects.
Edgar Simo <bobbens@gmail.com>
parents: 2476
diff changeset
   619
{
2480
b883974445fc Some more error reporting.
Edgar Simo <bobbens@gmail.com>
parents: 2479
diff changeset
   620
   struct ff_effect * linux_effect;
b883974445fc Some more error reporting.
Edgar Simo <bobbens@gmail.com>
parents: 2479
diff changeset
   621
2479
b9eb2cfe16cd Added some preliminary support for haptic effect control.
Edgar Simo <bobbens@gmail.com>
parents: 2478
diff changeset
   622
   /* Allocate the hardware effect */
b9eb2cfe16cd Added some preliminary support for haptic effect control.
Edgar Simo <bobbens@gmail.com>
parents: 2478
diff changeset
   623
   effect->hweffect = (struct haptic_hweffect *) 
b9eb2cfe16cd Added some preliminary support for haptic effect control.
Edgar Simo <bobbens@gmail.com>
parents: 2478
diff changeset
   624
         SDL_malloc(sizeof(struct haptic_hweffect));
b9eb2cfe16cd Added some preliminary support for haptic effect control.
Edgar Simo <bobbens@gmail.com>
parents: 2478
diff changeset
   625
   if (effect->hweffect == NULL) {
b9eb2cfe16cd Added some preliminary support for haptic effect control.
Edgar Simo <bobbens@gmail.com>
parents: 2478
diff changeset
   626
      SDL_OutOfMemory();
b9eb2cfe16cd Added some preliminary support for haptic effect control.
Edgar Simo <bobbens@gmail.com>
parents: 2478
diff changeset
   627
      return -1;
b9eb2cfe16cd Added some preliminary support for haptic effect control.
Edgar Simo <bobbens@gmail.com>
parents: 2478
diff changeset
   628
   }
b9eb2cfe16cd Added some preliminary support for haptic effect control.
Edgar Simo <bobbens@gmail.com>
parents: 2478
diff changeset
   629
b9eb2cfe16cd Added some preliminary support for haptic effect control.
Edgar Simo <bobbens@gmail.com>
parents: 2478
diff changeset
   630
   /* Prepare the ff_effect */
2480
b883974445fc Some more error reporting.
Edgar Simo <bobbens@gmail.com>
parents: 2479
diff changeset
   631
   linux_effect = &effect->hweffect->effect;
b883974445fc Some more error reporting.
Edgar Simo <bobbens@gmail.com>
parents: 2479
diff changeset
   632
   if (SDL_SYS_ToFFEffect( linux_effect, base ) != 0) {
2488
8e2bdbccf7ff Added SDL_HapticUpdateEffect().
Edgar Simo <bobbens@gmail.com>
parents: 2487
diff changeset
   633
      goto new_effect_err;
2479
b9eb2cfe16cd Added some preliminary support for haptic effect control.
Edgar Simo <bobbens@gmail.com>
parents: 2478
diff changeset
   634
   }
2480
b883974445fc Some more error reporting.
Edgar Simo <bobbens@gmail.com>
parents: 2479
diff changeset
   635
   linux_effect->id = -1; /* Have the kernel give it an id */
2479
b9eb2cfe16cd Added some preliminary support for haptic effect control.
Edgar Simo <bobbens@gmail.com>
parents: 2478
diff changeset
   636
b9eb2cfe16cd Added some preliminary support for haptic effect control.
Edgar Simo <bobbens@gmail.com>
parents: 2478
diff changeset
   637
   /* Upload the effect */
2480
b883974445fc Some more error reporting.
Edgar Simo <bobbens@gmail.com>
parents: 2479
diff changeset
   638
   if (ioctl(haptic->hwdata->fd, EVIOCSFF, linux_effect) < 0) {
2513
55fd9103a330 Prefixed all haptic errors with "Haptic:" for easier readability.
Edgar Simo <bobbens@gmail.com>
parents: 2512
diff changeset
   639
      SDL_SetError("Haptic: Error uploading effect to the device: %s", strerror(errno));
2488
8e2bdbccf7ff Added SDL_HapticUpdateEffect().
Edgar Simo <bobbens@gmail.com>
parents: 2487
diff changeset
   640
      goto new_effect_err;
8e2bdbccf7ff Added SDL_HapticUpdateEffect().
Edgar Simo <bobbens@gmail.com>
parents: 2487
diff changeset
   641
   }
8e2bdbccf7ff Added SDL_HapticUpdateEffect().
Edgar Simo <bobbens@gmail.com>
parents: 2487
diff changeset
   642
8e2bdbccf7ff Added SDL_HapticUpdateEffect().
Edgar Simo <bobbens@gmail.com>
parents: 2487
diff changeset
   643
   return 0;
8e2bdbccf7ff Added SDL_HapticUpdateEffect().
Edgar Simo <bobbens@gmail.com>
parents: 2487
diff changeset
   644
8e2bdbccf7ff Added SDL_HapticUpdateEffect().
Edgar Simo <bobbens@gmail.com>
parents: 2487
diff changeset
   645
new_effect_err:
8e2bdbccf7ff Added SDL_HapticUpdateEffect().
Edgar Simo <bobbens@gmail.com>
parents: 2487
diff changeset
   646
   free(effect->hweffect);
8e2bdbccf7ff Added SDL_HapticUpdateEffect().
Edgar Simo <bobbens@gmail.com>
parents: 2487
diff changeset
   647
   effect->hweffect = NULL;
8e2bdbccf7ff Added SDL_HapticUpdateEffect().
Edgar Simo <bobbens@gmail.com>
parents: 2487
diff changeset
   648
   return -1;
8e2bdbccf7ff Added SDL_HapticUpdateEffect().
Edgar Simo <bobbens@gmail.com>
parents: 2487
diff changeset
   649
}
8e2bdbccf7ff Added SDL_HapticUpdateEffect().
Edgar Simo <bobbens@gmail.com>
parents: 2487
diff changeset
   650
8e2bdbccf7ff Added SDL_HapticUpdateEffect().
Edgar Simo <bobbens@gmail.com>
parents: 2487
diff changeset
   651
8e2bdbccf7ff Added SDL_HapticUpdateEffect().
Edgar Simo <bobbens@gmail.com>
parents: 2487
diff changeset
   652
/*
8e2bdbccf7ff Added SDL_HapticUpdateEffect().
Edgar Simo <bobbens@gmail.com>
parents: 2487
diff changeset
   653
 * Updates an effect.
8e2bdbccf7ff Added SDL_HapticUpdateEffect().
Edgar Simo <bobbens@gmail.com>
parents: 2487
diff changeset
   654
 *
8e2bdbccf7ff Added SDL_HapticUpdateEffect().
Edgar Simo <bobbens@gmail.com>
parents: 2487
diff changeset
   655
 * Note: Dynamically updating the direction can in some cases force
8e2bdbccf7ff Added SDL_HapticUpdateEffect().
Edgar Simo <bobbens@gmail.com>
parents: 2487
diff changeset
   656
 * the effect to restart and run once.
8e2bdbccf7ff Added SDL_HapticUpdateEffect().
Edgar Simo <bobbens@gmail.com>
parents: 2487
diff changeset
   657
 */
8e2bdbccf7ff Added SDL_HapticUpdateEffect().
Edgar Simo <bobbens@gmail.com>
parents: 2487
diff changeset
   658
int SDL_SYS_HapticUpdateEffect(SDL_Haptic * haptic,
8e2bdbccf7ff Added SDL_HapticUpdateEffect().
Edgar Simo <bobbens@gmail.com>
parents: 2487
diff changeset
   659
      struct haptic_effect * effect, SDL_HapticEffect * data)
8e2bdbccf7ff Added SDL_HapticUpdateEffect().
Edgar Simo <bobbens@gmail.com>
parents: 2487
diff changeset
   660
{
8e2bdbccf7ff Added SDL_HapticUpdateEffect().
Edgar Simo <bobbens@gmail.com>
parents: 2487
diff changeset
   661
   struct ff_effect linux_effect;
8e2bdbccf7ff Added SDL_HapticUpdateEffect().
Edgar Simo <bobbens@gmail.com>
parents: 2487
diff changeset
   662
8e2bdbccf7ff Added SDL_HapticUpdateEffect().
Edgar Simo <bobbens@gmail.com>
parents: 2487
diff changeset
   663
   /* Create the new effect */
8e2bdbccf7ff Added SDL_HapticUpdateEffect().
Edgar Simo <bobbens@gmail.com>
parents: 2487
diff changeset
   664
   if (SDL_SYS_ToFFEffect( &linux_effect, data ) != 0) {
8e2bdbccf7ff Added SDL_HapticUpdateEffect().
Edgar Simo <bobbens@gmail.com>
parents: 2487
diff changeset
   665
      return -1;
8e2bdbccf7ff Added SDL_HapticUpdateEffect().
Edgar Simo <bobbens@gmail.com>
parents: 2487
diff changeset
   666
   }
8e2bdbccf7ff Added SDL_HapticUpdateEffect().
Edgar Simo <bobbens@gmail.com>
parents: 2487
diff changeset
   667
   linux_effect.id = effect->hweffect->effect.id;
8e2bdbccf7ff Added SDL_HapticUpdateEffect().
Edgar Simo <bobbens@gmail.com>
parents: 2487
diff changeset
   668
8e2bdbccf7ff Added SDL_HapticUpdateEffect().
Edgar Simo <bobbens@gmail.com>
parents: 2487
diff changeset
   669
   /* See if it can be uploaded. */
8e2bdbccf7ff Added SDL_HapticUpdateEffect().
Edgar Simo <bobbens@gmail.com>
parents: 2487
diff changeset
   670
   if (ioctl(haptic->hwdata->fd, EVIOCSFF, &linux_effect) < 0) {
2513
55fd9103a330 Prefixed all haptic errors with "Haptic:" for easier readability.
Edgar Simo <bobbens@gmail.com>
parents: 2512
diff changeset
   671
      SDL_SetError("Haptic: Error updating the effect: %s", strerror(errno));
2479
b9eb2cfe16cd Added some preliminary support for haptic effect control.
Edgar Simo <bobbens@gmail.com>
parents: 2478
diff changeset
   672
      return -1;
b9eb2cfe16cd Added some preliminary support for haptic effect control.
Edgar Simo <bobbens@gmail.com>
parents: 2478
diff changeset
   673
   }
b9eb2cfe16cd Added some preliminary support for haptic effect control.
Edgar Simo <bobbens@gmail.com>
parents: 2478
diff changeset
   674
2488
8e2bdbccf7ff Added SDL_HapticUpdateEffect().
Edgar Simo <bobbens@gmail.com>
parents: 2487
diff changeset
   675
   /* Copy the new effect into memory. */
8e2bdbccf7ff Added SDL_HapticUpdateEffect().
Edgar Simo <bobbens@gmail.com>
parents: 2487
diff changeset
   676
   SDL_memcpy( &effect->hweffect->effect, &linux_effect, sizeof(struct ff_effect) );
8e2bdbccf7ff Added SDL_HapticUpdateEffect().
Edgar Simo <bobbens@gmail.com>
parents: 2487
diff changeset
   677
8e2bdbccf7ff Added SDL_HapticUpdateEffect().
Edgar Simo <bobbens@gmail.com>
parents: 2487
diff changeset
   678
   return effect->hweffect->effect.id;
2479
b9eb2cfe16cd Added some preliminary support for haptic effect control.
Edgar Simo <bobbens@gmail.com>
parents: 2478
diff changeset
   679
}
b9eb2cfe16cd Added some preliminary support for haptic effect control.
Edgar Simo <bobbens@gmail.com>
parents: 2478
diff changeset
   680
b9eb2cfe16cd Added some preliminary support for haptic effect control.
Edgar Simo <bobbens@gmail.com>
parents: 2478
diff changeset
   681
b9eb2cfe16cd Added some preliminary support for haptic effect control.
Edgar Simo <bobbens@gmail.com>
parents: 2478
diff changeset
   682
/*
b9eb2cfe16cd Added some preliminary support for haptic effect control.
Edgar Simo <bobbens@gmail.com>
parents: 2478
diff changeset
   683
 * Runs an effect.
b9eb2cfe16cd Added some preliminary support for haptic effect control.
Edgar Simo <bobbens@gmail.com>
parents: 2478
diff changeset
   684
 */
b9eb2cfe16cd Added some preliminary support for haptic effect control.
Edgar Simo <bobbens@gmail.com>
parents: 2478
diff changeset
   685
int
2519
af9df9662807 More explicit with iterations and length.
Edgar Simo <bobbens@gmail.com>
parents: 2518
diff changeset
   686
SDL_SYS_HapticRunEffect(SDL_Haptic * haptic, struct haptic_effect * effect,
af9df9662807 More explicit with iterations and length.
Edgar Simo <bobbens@gmail.com>
parents: 2518
diff changeset
   687
                        Uint32 iterations)
2479
b9eb2cfe16cd Added some preliminary support for haptic effect control.
Edgar Simo <bobbens@gmail.com>
parents: 2478
diff changeset
   688
{
b9eb2cfe16cd Added some preliminary support for haptic effect control.
Edgar Simo <bobbens@gmail.com>
parents: 2478
diff changeset
   689
   struct input_event run;
b9eb2cfe16cd Added some preliminary support for haptic effect control.
Edgar Simo <bobbens@gmail.com>
parents: 2478
diff changeset
   690
b9eb2cfe16cd Added some preliminary support for haptic effect control.
Edgar Simo <bobbens@gmail.com>
parents: 2478
diff changeset
   691
   /* Prepare to run the effect */
b9eb2cfe16cd Added some preliminary support for haptic effect control.
Edgar Simo <bobbens@gmail.com>
parents: 2478
diff changeset
   692
   run.type = EV_FF;
b9eb2cfe16cd Added some preliminary support for haptic effect control.
Edgar Simo <bobbens@gmail.com>
parents: 2478
diff changeset
   693
   run.code = effect->hweffect->effect.id;
2519
af9df9662807 More explicit with iterations and length.
Edgar Simo <bobbens@gmail.com>
parents: 2518
diff changeset
   694
   run.value = (iterations > INT_MAX) ? INT_MAX : iterations;
2479
b9eb2cfe16cd Added some preliminary support for haptic effect control.
Edgar Simo <bobbens@gmail.com>
parents: 2478
diff changeset
   695
b9eb2cfe16cd Added some preliminary support for haptic effect control.
Edgar Simo <bobbens@gmail.com>
parents: 2478
diff changeset
   696
   if (write(haptic->hwdata->fd, (const void*) &run, sizeof(run)) < 0) {
2513
55fd9103a330 Prefixed all haptic errors with "Haptic:" for easier readability.
Edgar Simo <bobbens@gmail.com>
parents: 2512
diff changeset
   697
      SDL_SetError("Haptic: Unable to run the effect: %s", strerror(errno));
2479
b9eb2cfe16cd Added some preliminary support for haptic effect control.
Edgar Simo <bobbens@gmail.com>
parents: 2478
diff changeset
   698
      return -1;
b9eb2cfe16cd Added some preliminary support for haptic effect control.
Edgar Simo <bobbens@gmail.com>
parents: 2478
diff changeset
   699
   }
b9eb2cfe16cd Added some preliminary support for haptic effect control.
Edgar Simo <bobbens@gmail.com>
parents: 2478
diff changeset
   700
b9eb2cfe16cd Added some preliminary support for haptic effect control.
Edgar Simo <bobbens@gmail.com>
parents: 2478
diff changeset
   701
   return 0;
b9eb2cfe16cd Added some preliminary support for haptic effect control.
Edgar Simo <bobbens@gmail.com>
parents: 2478
diff changeset
   702
}
b9eb2cfe16cd Added some preliminary support for haptic effect control.
Edgar Simo <bobbens@gmail.com>
parents: 2478
diff changeset
   703
b9eb2cfe16cd Added some preliminary support for haptic effect control.
Edgar Simo <bobbens@gmail.com>
parents: 2478
diff changeset
   704
b9eb2cfe16cd Added some preliminary support for haptic effect control.
Edgar Simo <bobbens@gmail.com>
parents: 2478
diff changeset
   705
/*
2485
67978eea6d10 Added SDL_HapticStopEffect().
Edgar Simo <bobbens@gmail.com>
parents: 2484
diff changeset
   706
 * Stops an effect.
67978eea6d10 Added SDL_HapticStopEffect().
Edgar Simo <bobbens@gmail.com>
parents: 2484
diff changeset
   707
 */
67978eea6d10 Added SDL_HapticStopEffect().
Edgar Simo <bobbens@gmail.com>
parents: 2484
diff changeset
   708
int
67978eea6d10 Added SDL_HapticStopEffect().
Edgar Simo <bobbens@gmail.com>
parents: 2484
diff changeset
   709
SDL_SYS_HapticStopEffect(SDL_Haptic * haptic, struct haptic_effect * effect)
67978eea6d10 Added SDL_HapticStopEffect().
Edgar Simo <bobbens@gmail.com>
parents: 2484
diff changeset
   710
{
67978eea6d10 Added SDL_HapticStopEffect().
Edgar Simo <bobbens@gmail.com>
parents: 2484
diff changeset
   711
   struct input_event stop;
67978eea6d10 Added SDL_HapticStopEffect().
Edgar Simo <bobbens@gmail.com>
parents: 2484
diff changeset
   712
67978eea6d10 Added SDL_HapticStopEffect().
Edgar Simo <bobbens@gmail.com>
parents: 2484
diff changeset
   713
   stop.type = EV_FF;
67978eea6d10 Added SDL_HapticStopEffect().
Edgar Simo <bobbens@gmail.com>
parents: 2484
diff changeset
   714
   stop.code = effect->hweffect->effect.id;
67978eea6d10 Added SDL_HapticStopEffect().
Edgar Simo <bobbens@gmail.com>
parents: 2484
diff changeset
   715
   stop.value = 0;
67978eea6d10 Added SDL_HapticStopEffect().
Edgar Simo <bobbens@gmail.com>
parents: 2484
diff changeset
   716
67978eea6d10 Added SDL_HapticStopEffect().
Edgar Simo <bobbens@gmail.com>
parents: 2484
diff changeset
   717
   if (write(haptic->hwdata->fd, (const void*) &stop, sizeof(stop)) < 0) {
2513
55fd9103a330 Prefixed all haptic errors with "Haptic:" for easier readability.
Edgar Simo <bobbens@gmail.com>
parents: 2512
diff changeset
   718
      SDL_SetError("Haptic: Unable to stop the effect: %s", strerror(errno));
2485
67978eea6d10 Added SDL_HapticStopEffect().
Edgar Simo <bobbens@gmail.com>
parents: 2484
diff changeset
   719
      return -1;
67978eea6d10 Added SDL_HapticStopEffect().
Edgar Simo <bobbens@gmail.com>
parents: 2484
diff changeset
   720
   }
67978eea6d10 Added SDL_HapticStopEffect().
Edgar Simo <bobbens@gmail.com>
parents: 2484
diff changeset
   721
67978eea6d10 Added SDL_HapticStopEffect().
Edgar Simo <bobbens@gmail.com>
parents: 2484
diff changeset
   722
   return 0;
67978eea6d10 Added SDL_HapticStopEffect().
Edgar Simo <bobbens@gmail.com>
parents: 2484
diff changeset
   723
}
67978eea6d10 Added SDL_HapticStopEffect().
Edgar Simo <bobbens@gmail.com>
parents: 2484
diff changeset
   724
67978eea6d10 Added SDL_HapticStopEffect().
Edgar Simo <bobbens@gmail.com>
parents: 2484
diff changeset
   725
67978eea6d10 Added SDL_HapticStopEffect().
Edgar Simo <bobbens@gmail.com>
parents: 2484
diff changeset
   726
/*
2487
4c8e25ef2d97 Merged seperate waveforms into types to be more compatible.
Edgar Simo <bobbens@gmail.com>
parents: 2486
diff changeset
   727
 * Frees the effect.
2479
b9eb2cfe16cd Added some preliminary support for haptic effect control.
Edgar Simo <bobbens@gmail.com>
parents: 2478
diff changeset
   728
 */
b9eb2cfe16cd Added some preliminary support for haptic effect control.
Edgar Simo <bobbens@gmail.com>
parents: 2478
diff changeset
   729
void
b9eb2cfe16cd Added some preliminary support for haptic effect control.
Edgar Simo <bobbens@gmail.com>
parents: 2478
diff changeset
   730
SDL_SYS_HapticDestroyEffect(SDL_Haptic * haptic, struct haptic_effect * effect)
b9eb2cfe16cd Added some preliminary support for haptic effect control.
Edgar Simo <bobbens@gmail.com>
parents: 2478
diff changeset
   731
{
b9eb2cfe16cd Added some preliminary support for haptic effect control.
Edgar Simo <bobbens@gmail.com>
parents: 2478
diff changeset
   732
   if (ioctl(haptic->hwdata->fd, EVIOCRMFF, effect->hweffect->effect.id) < 0) {
2513
55fd9103a330 Prefixed all haptic errors with "Haptic:" for easier readability.
Edgar Simo <bobbens@gmail.com>
parents: 2512
diff changeset
   733
      SDL_SetError("Haptic: Error removing the effect from the device: %s",
2496
8f840a6cdf01 Using errno for more verbosity in errors.
Edgar Simo <bobbens@gmail.com>
parents: 2495
diff changeset
   734
            strerror(errno));
2479
b9eb2cfe16cd Added some preliminary support for haptic effect control.
Edgar Simo <bobbens@gmail.com>
parents: 2478
diff changeset
   735
   }
b9eb2cfe16cd Added some preliminary support for haptic effect control.
Edgar Simo <bobbens@gmail.com>
parents: 2478
diff changeset
   736
   SDL_free(effect->hweffect);
b9eb2cfe16cd Added some preliminary support for haptic effect control.
Edgar Simo <bobbens@gmail.com>
parents: 2478
diff changeset
   737
   effect->hweffect = NULL;
2477
97f75ea43a93 Starting to add infrastructure to handle haptic effects.
Edgar Simo <bobbens@gmail.com>
parents: 2476
diff changeset
   738
}
97f75ea43a93 Starting to add infrastructure to handle haptic effects.
Edgar Simo <bobbens@gmail.com>
parents: 2476
diff changeset
   739
2474
3f80bf1528b4 Properly quit the SDL_haptic subsystem.
Edgar Simo <bobbens@gmail.com>
parents: 2472
diff changeset
   740
2483
9d52368ebcf5 Setting effects memory to 0.
Edgar Simo <bobbens@gmail.com>
parents: 2482
diff changeset
   741
/*
2495
66c02abeef0e Added SDL_HapticGetEffectStatus().
Edgar Simo <bobbens@gmail.com>
parents: 2493
diff changeset
   742
 * Gets the status of a haptic effect.
66c02abeef0e Added SDL_HapticGetEffectStatus().
Edgar Simo <bobbens@gmail.com>
parents: 2493
diff changeset
   743
 */
66c02abeef0e Added SDL_HapticGetEffectStatus().
Edgar Simo <bobbens@gmail.com>
parents: 2493
diff changeset
   744
int
66c02abeef0e Added SDL_HapticGetEffectStatus().
Edgar Simo <bobbens@gmail.com>
parents: 2493
diff changeset
   745
SDL_SYS_HapticGetEffectStatus(SDL_Haptic * haptic, struct haptic_effect * effect)
66c02abeef0e Added SDL_HapticGetEffectStatus().
Edgar Simo <bobbens@gmail.com>
parents: 2493
diff changeset
   746
{
66c02abeef0e Added SDL_HapticGetEffectStatus().
Edgar Simo <bobbens@gmail.com>
parents: 2493
diff changeset
   747
#if 0  /* Not supported atm. */
66c02abeef0e Added SDL_HapticGetEffectStatus().
Edgar Simo <bobbens@gmail.com>
parents: 2493
diff changeset
   748
   struct input_event ie;
66c02abeef0e Added SDL_HapticGetEffectStatus().
Edgar Simo <bobbens@gmail.com>
parents: 2493
diff changeset
   749
66c02abeef0e Added SDL_HapticGetEffectStatus().
Edgar Simo <bobbens@gmail.com>
parents: 2493
diff changeset
   750
   ie.type = EV_FF;
66c02abeef0e Added SDL_HapticGetEffectStatus().
Edgar Simo <bobbens@gmail.com>
parents: 2493
diff changeset
   751
   ie.type = EV_FF_STATUS;
66c02abeef0e Added SDL_HapticGetEffectStatus().
Edgar Simo <bobbens@gmail.com>
parents: 2493
diff changeset
   752
   ie.code = effect->hweffect->effect.id;
66c02abeef0e Added SDL_HapticGetEffectStatus().
Edgar Simo <bobbens@gmail.com>
parents: 2493
diff changeset
   753
66c02abeef0e Added SDL_HapticGetEffectStatus().
Edgar Simo <bobbens@gmail.com>
parents: 2493
diff changeset
   754
   if (write(haptic->hwdata->fd, &ie, sizeof(ie)) < 0) {
2513
55fd9103a330 Prefixed all haptic errors with "Haptic:" for easier readability.
Edgar Simo <bobbens@gmail.com>
parents: 2512
diff changeset
   755
      SDL_SetError("Haptic: Error getting device status.");
2495
66c02abeef0e Added SDL_HapticGetEffectStatus().
Edgar Simo <bobbens@gmail.com>
parents: 2493
diff changeset
   756
      return -1;
66c02abeef0e Added SDL_HapticGetEffectStatus().
Edgar Simo <bobbens@gmail.com>
parents: 2493
diff changeset
   757
   }
66c02abeef0e Added SDL_HapticGetEffectStatus().
Edgar Simo <bobbens@gmail.com>
parents: 2493
diff changeset
   758
66c02abeef0e Added SDL_HapticGetEffectStatus().
Edgar Simo <bobbens@gmail.com>
parents: 2493
diff changeset
   759
   return 0;
66c02abeef0e Added SDL_HapticGetEffectStatus().
Edgar Simo <bobbens@gmail.com>
parents: 2493
diff changeset
   760
#endif
66c02abeef0e Added SDL_HapticGetEffectStatus().
Edgar Simo <bobbens@gmail.com>
parents: 2493
diff changeset
   761
66c02abeef0e Added SDL_HapticGetEffectStatus().
Edgar Simo <bobbens@gmail.com>
parents: 2493
diff changeset
   762
   return -1;
66c02abeef0e Added SDL_HapticGetEffectStatus().
Edgar Simo <bobbens@gmail.com>
parents: 2493
diff changeset
   763
}
66c02abeef0e Added SDL_HapticGetEffectStatus().
Edgar Simo <bobbens@gmail.com>
parents: 2493
diff changeset
   764
66c02abeef0e Added SDL_HapticGetEffectStatus().
Edgar Simo <bobbens@gmail.com>
parents: 2493
diff changeset
   765
66c02abeef0e Added SDL_HapticGetEffectStatus().
Edgar Simo <bobbens@gmail.com>
parents: 2493
diff changeset
   766
/*
2483
9d52368ebcf5 Setting effects memory to 0.
Edgar Simo <bobbens@gmail.com>
parents: 2482
diff changeset
   767
 * Sets the gain.
9d52368ebcf5 Setting effects memory to 0.
Edgar Simo <bobbens@gmail.com>
parents: 2482
diff changeset
   768
 */
9d52368ebcf5 Setting effects memory to 0.
Edgar Simo <bobbens@gmail.com>
parents: 2482
diff changeset
   769
int
9d52368ebcf5 Setting effects memory to 0.
Edgar Simo <bobbens@gmail.com>
parents: 2482
diff changeset
   770
SDL_SYS_HapticSetGain(SDL_Haptic * haptic, int gain)
9d52368ebcf5 Setting effects memory to 0.
Edgar Simo <bobbens@gmail.com>
parents: 2482
diff changeset
   771
{
9d52368ebcf5 Setting effects memory to 0.
Edgar Simo <bobbens@gmail.com>
parents: 2482
diff changeset
   772
   struct input_event ie;
9d52368ebcf5 Setting effects memory to 0.
Edgar Simo <bobbens@gmail.com>
parents: 2482
diff changeset
   773
9d52368ebcf5 Setting effects memory to 0.
Edgar Simo <bobbens@gmail.com>
parents: 2482
diff changeset
   774
   ie.type = EV_FF;
9d52368ebcf5 Setting effects memory to 0.
Edgar Simo <bobbens@gmail.com>
parents: 2482
diff changeset
   775
   ie.code = FF_GAIN;
9d52368ebcf5 Setting effects memory to 0.
Edgar Simo <bobbens@gmail.com>
parents: 2482
diff changeset
   776
   ie.value = (0xFFFFUL * gain) / 100;
9d52368ebcf5 Setting effects memory to 0.
Edgar Simo <bobbens@gmail.com>
parents: 2482
diff changeset
   777
2484
666472fd4cb0 HapticSetGain checks to see if device supports it.
Edgar Simo <bobbens@gmail.com>
parents: 2483
diff changeset
   778
   if (write(haptic->hwdata->fd, &ie, sizeof(ie)) < 0) {
2513
55fd9103a330 Prefixed all haptic errors with "Haptic:" for easier readability.
Edgar Simo <bobbens@gmail.com>
parents: 2512
diff changeset
   779
      SDL_SetError("Haptic: Error setting gain: %s", strerror(errno));
2484
666472fd4cb0 HapticSetGain checks to see if device supports it.
Edgar Simo <bobbens@gmail.com>
parents: 2483
diff changeset
   780
      return -1;
2483
9d52368ebcf5 Setting effects memory to 0.
Edgar Simo <bobbens@gmail.com>
parents: 2482
diff changeset
   781
   }
9d52368ebcf5 Setting effects memory to 0.
Edgar Simo <bobbens@gmail.com>
parents: 2482
diff changeset
   782
2484
666472fd4cb0 HapticSetGain checks to see if device supports it.
Edgar Simo <bobbens@gmail.com>
parents: 2483
diff changeset
   783
   return 0;
2483
9d52368ebcf5 Setting effects memory to 0.
Edgar Simo <bobbens@gmail.com>
parents: 2482
diff changeset
   784
}
9d52368ebcf5 Setting effects memory to 0.
Edgar Simo <bobbens@gmail.com>
parents: 2482
diff changeset
   785
9d52368ebcf5 Setting effects memory to 0.
Edgar Simo <bobbens@gmail.com>
parents: 2482
diff changeset
   786
2484
666472fd4cb0 HapticSetGain checks to see if device supports it.
Edgar Simo <bobbens@gmail.com>
parents: 2483
diff changeset
   787
/*
666472fd4cb0 HapticSetGain checks to see if device supports it.
Edgar Simo <bobbens@gmail.com>
parents: 2483
diff changeset
   788
 * Sets the autocentering.
666472fd4cb0 HapticSetGain checks to see if device supports it.
Edgar Simo <bobbens@gmail.com>
parents: 2483
diff changeset
   789
 */
666472fd4cb0 HapticSetGain checks to see if device supports it.
Edgar Simo <bobbens@gmail.com>
parents: 2483
diff changeset
   790
int
666472fd4cb0 HapticSetGain checks to see if device supports it.
Edgar Simo <bobbens@gmail.com>
parents: 2483
diff changeset
   791
SDL_SYS_HapticSetAutocenter(SDL_Haptic * haptic, int autocenter)
666472fd4cb0 HapticSetGain checks to see if device supports it.
Edgar Simo <bobbens@gmail.com>
parents: 2483
diff changeset
   792
{
666472fd4cb0 HapticSetGain checks to see if device supports it.
Edgar Simo <bobbens@gmail.com>
parents: 2483
diff changeset
   793
   struct input_event ie;
666472fd4cb0 HapticSetGain checks to see if device supports it.
Edgar Simo <bobbens@gmail.com>
parents: 2483
diff changeset
   794
666472fd4cb0 HapticSetGain checks to see if device supports it.
Edgar Simo <bobbens@gmail.com>
parents: 2483
diff changeset
   795
   ie.type = EV_FF;
666472fd4cb0 HapticSetGain checks to see if device supports it.
Edgar Simo <bobbens@gmail.com>
parents: 2483
diff changeset
   796
   ie.code = FF_AUTOCENTER;
666472fd4cb0 HapticSetGain checks to see if device supports it.
Edgar Simo <bobbens@gmail.com>
parents: 2483
diff changeset
   797
   ie.value = (0xFFFFUL * autocenter) / 100;
666472fd4cb0 HapticSetGain checks to see if device supports it.
Edgar Simo <bobbens@gmail.com>
parents: 2483
diff changeset
   798
666472fd4cb0 HapticSetGain checks to see if device supports it.
Edgar Simo <bobbens@gmail.com>
parents: 2483
diff changeset
   799
   if (write(haptic->hwdata->fd, &ie, sizeof(ie)) < 0) {
2513
55fd9103a330 Prefixed all haptic errors with "Haptic:" for easier readability.
Edgar Simo <bobbens@gmail.com>
parents: 2512
diff changeset
   800
      SDL_SetError("Haptic: Error setting autocenter: %s", strerror(errno));
2484
666472fd4cb0 HapticSetGain checks to see if device supports it.
Edgar Simo <bobbens@gmail.com>
parents: 2483
diff changeset
   801
      return -1;
666472fd4cb0 HapticSetGain checks to see if device supports it.
Edgar Simo <bobbens@gmail.com>
parents: 2483
diff changeset
   802
   }
666472fd4cb0 HapticSetGain checks to see if device supports it.
Edgar Simo <bobbens@gmail.com>
parents: 2483
diff changeset
   803
666472fd4cb0 HapticSetGain checks to see if device supports it.
Edgar Simo <bobbens@gmail.com>
parents: 2483
diff changeset
   804
   return 0;
666472fd4cb0 HapticSetGain checks to see if device supports it.
Edgar Simo <bobbens@gmail.com>
parents: 2483
diff changeset
   805
}
666472fd4cb0 HapticSetGain checks to see if device supports it.
Edgar Simo <bobbens@gmail.com>
parents: 2483
diff changeset
   806
666472fd4cb0 HapticSetGain checks to see if device supports it.
Edgar Simo <bobbens@gmail.com>
parents: 2483
diff changeset
   807
2472
3f73c88c9abb First commit of the SDL_haptic subsystem.
Edgar Simo <bobbens@gmail.com>
parents:
diff changeset
   808
#endif /* SDL_HAPTIC_LINUX */