src/haptic/darwin/SDL_syshaptic.c
author Edgar Simo <bobbens@gmail.com>
Fri, 18 Jul 2008 19:22:56 +0000
branchgsoc2008_force_feedback
changeset 2534 e597de8dccd5
parent 2533 0c8cea99c4b8
child 2535 f0ed8471497d
permissions -rw-r--r--
Was a typo in the mac os x documentation.
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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_IOKIT
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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/dawrin/SDL_sysjoystick_c.h"*/ /* For joystick hwdata */ 
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#include <IOKit/IOKitLib.h>
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#include <IOKit/hid/IOHIDKeys.h>
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#include <ForceFeedback/ForceFeedback.h>
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#include <ForceFeedback/ForceFeedbackConstants.h>
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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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   io_service_t dev;
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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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   FFDeviceObjectReference device; /* Hardware device. */
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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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   FFEffectObjectReference ref; /* Reference. */
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   struct FFEFFECT effect; /* Hardware effect. */
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};
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/*
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 * Prototypes.
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 */
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static void SDL_SYS_HapticFreeFFEFFECT( FFEFFECT * effect );
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/*
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 * Initializes the haptic subsystem.
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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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   int numhaptics;
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   IOReturn result;
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   io_iterator_t iter;
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   CFDictionaryRef match;
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   io_service_t device;
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   /* Get HID devices. */
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   match = IOServiceMatching(kIOHIDDeviceKey);
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   if (match == NULL) {
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      SDL_SetError("Haptic: Failed to get IOServiceMatching.");
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      return -1;
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   }
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   /* Now search I/O Registry for matching devices. */
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   result = IOServiceGetMatchingServices(kIOMasterPortDefault, match, &iter);
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   if (result != kIOReturnSuccess) {
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      SDL_SetError("Haptic: Couldn't create a HID object iterator.");
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      return -1;
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   }
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   /* IOServiceGetMatchingServices consumes dictionary. */
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   numhaptics = 0;
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   while ((device = IOIteratorNext(iter)) != IO_OBJECT_NULL) {
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      /* Check for force feedback. */
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      if (FFIsForceFeedback(device) == FF_OK) {
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         SDL_hapticlist[numhaptics].dev = device;
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         SDL_hapticlist[numhaptics].haptic = NULL;
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         numhaptics++;
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      }
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      /* Reached haptic limit. */
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      if (numhaptics >= MAX_HAPTICS)
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         break;
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   }
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   IOObjectRelease(iter);
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   return numhaptics;
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}
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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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 */
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const char *
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SDL_SYS_HapticName(int index)
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{
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   return NULL;
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}
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#define FF_TEST(ff, s) \
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if (features.supportedEffects & ff) supported |= s
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/*
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 * Gets supported features.
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 */
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static unsigned int
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GetSupportedFeatures(FFDeviceObjectReference device,
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                     int *neffects, int *nplaying, int *naxes)
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{
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   HRESULT ret;
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   FFCAPABILITIES features;
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   unsigned int supported;
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   Uint32 val;
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   ret = FFDeviceGetForceFeedbackCapabilities(device, &features);
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   if (ret != FF_OK) {
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      SDL_SetError("Haptic: Unable to get device's supported features.");
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      return 0;
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   }
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   supported = 0;
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   /* Get maximum effects. */
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   *neffects = features.storageCapacity;
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   *nplaying = features.playbackCapacity;
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   /* Test for effects. */
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   FF_TEST(FFCAP_ET_CONSTANTFORCE, SDL_HAPTIC_CONSTANT);
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   FF_TEST(FFCAP_ET_RAMPFORCE,     SDL_HAPTIC_RAMP);
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   FF_TEST(FFCAP_ET_SQUARE,        SDL_HAPTIC_SQUARE);
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   FF_TEST(FFCAP_ET_SINE,          SDL_HAPTIC_SINE);
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   FF_TEST(FFCAP_ET_TRIANGLE,      SDL_HAPTIC_TRIANGLE);
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   FF_TEST(FFCAP_ET_SAWTOOTHUP,    SDL_HAPTIC_SAWTOOTHUP);
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   FF_TEST(FFCAP_ET_SAWTOOTHDOWN,  SDL_HAPTIC_SAWTOOTHDOWN);
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   FF_TEST(FFCAP_ET_SPRING,        SDL_HAPTIC_SPRING);
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   FF_TEST(FFCAP_ET_DAMPER,        SDL_HAPTIC_DAMPER);
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   FF_TEST(FFCAP_ET_INERTIA,       SDL_HAPTIC_INERTIA);
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   FF_TEST(FFCAP_ET_FRICTION,      SDL_HAPTIC_FRICTION);
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   FF_TEST(FFCAP_ET_CUSTOMFORCE,   SDL_HAPTIC_CUSTOM);
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   /* Check if supports gain. */
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   ret = FFDeviceGetForceFeedbackProperty(device, FFPROP_FFGAIN,
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                                          &val, sizeof(val));
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   if (ret == FF_OK) supported |= SDL_HAPTIC_GAIN;
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   else if (ret != FFERR_UNSUPPORTED) {
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      SDL_SetError("Haptic: Unable to get if device supports gain.");
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      return 0;
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   }
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   /* Checks if supports autocenter. */
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   ret = FFDeviceGetForceFeedbackProperty(device, FFPROP_AUTOCENTER,
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                                          &val, sizeof(val));
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   if (ret == FF_OK) supported |= SDL_HAPTIC_AUTOCENTER;
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   else if (ret != FFERR_UNSUPPORTED) {
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      SDL_SetError("Haptic: Unable to get if device supports autocenter.");
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      return 0;
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   }
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   /* Check for axes, we have an artificial limit on axes */
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   *naxes = ((features.numFfAxes) > 3) ?
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         3 : features.numFfAxes;
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   /* Always supported features. */
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   supported |= SDL_HAPTIC_STATUS;
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   return supported;
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}
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/*
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 * Opens the haptic device from the file descriptor.
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 */
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static int
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SDL_SYS_HapticOpenFromService(SDL_Haptic * haptic, io_service_t service)
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{
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   /* Allocate the hwdata */
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   haptic->hwdata = (struct haptic_hwdata *)
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         SDL_malloc(sizeof(*haptic->hwdata));
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   if (haptic->hwdata == NULL) {
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      SDL_OutOfMemory();
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      goto creat_err;
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   }
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   SDL_memset(haptic->hwdata, 0, sizeof(*haptic->hwdata));
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   /* Open the device */
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   if (FFCreateDevice( service, &haptic->hwdata->device ) != FF_OK) {
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      SDL_SetError("Haptic: Unable to create device from service.");
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      goto creat_err;
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   }
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   /* Get supported features. */
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   haptic->supported = GetSupportedFeatures(haptic->hwdata->device,
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                                            &haptic->neffects, &haptic->nplaying,
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                                            &haptic->naxes);
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   if (haptic->supported == 0) { /* Error since device supports nothing. */
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      goto open_err;
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   }
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   haptic->effects = (struct haptic_effect *)
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         SDL_malloc(sizeof(struct haptic_effect) * haptic->neffects);
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   if (haptic->effects == NULL) {
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      SDL_OutOfMemory();
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      goto open_err;
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   }
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   /* Clear the memory */
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   SDL_memset(haptic->effects, 0,
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         sizeof(struct haptic_effect) * haptic->neffects);
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   return 0;
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   /* Error handling */
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open_err:
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   FFReleaseDevice(haptic->hwdata->device);
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creat_err:
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   if (haptic->hwdata != NULL) {
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      free(haptic->hwdata);
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      haptic->hwdata = NULL;                                              
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   247
   }
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   248
   return -1;
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   250
}
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   252
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   253
/*
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 * Opens a haptic device for usage.
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 */
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int
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SDL_SYS_HapticOpen(SDL_Haptic * haptic)
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{
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   return SDL_SYS_HapticOpenFromService(haptic,
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                SDL_hapticlist[haptic->index].dev);
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}
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   262
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   263
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   264
/*
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 * Opens a haptic device from first mouse it finds for usage.
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 */
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   267
int
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   268
SDL_SYS_HapticMouse(void)
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   269
{
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   270
   return -1;
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   271
}
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   272
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   273
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   274
/*
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 * Checks to see if a joystick has haptic features.
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 */
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   277
int
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   278
SDL_SYS_JoystickIsHaptic(SDL_Joystick * joystick)
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   279
{
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   280
   return SDL_FALSE;
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   281
}
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   282
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   283
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   284
/*
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 * Checks to see if the haptic device and joystick and in reality the same.
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 */
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   287
int
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   288
SDL_SYS_JoystickSameHaptic(SDL_Haptic * haptic, SDL_Joystick * joystick)
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   289
{
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   290
   return 0;
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   291
}
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   292
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   293
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   294
/*
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 * Opens a SDL_Haptic from a SDL_Joystick.
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 */
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   297
int
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   298
SDL_SYS_HapticOpenFromJoystick(SDL_Haptic * haptic, SDL_Joystick * joystick)
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   299
{
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   300
   return -1;
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   301
}
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   302
bobbens@2520
   303
bobbens@2520
   304
/*
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   305
 * Closes the haptic device.
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   306
 */
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   307
void
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   308
SDL_SYS_HapticClose(SDL_Haptic * haptic)
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   309
{
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   310
   int i;
bobbens@2520
   311
bobbens@2520
   312
   if (haptic->hwdata) {
bobbens@2520
   313
bobbens@2530
   314
      /* Free the effects. */
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   315
      for (i=0; i<haptic->neffects; i++) {        
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   316
         if (haptic->effects[i].hweffect != NULL) {
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   317
            SDL_SYS_HapticFreeFFEFFECT(&haptic->effects[i].hweffect->effect);
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   318
            SDL_free(haptic->effects[i].hweffect);
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   319
         } 
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   320
      }    
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   321
      SDL_free(haptic->effects);
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   322
      haptic->neffects = 0;
bobbens@2530
   323
bobbens@2520
   324
      /* Clean up */
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   325
      FFReleaseDevice(haptic->hwdata->device);
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   326
bobbens@2520
   327
      /* Free */
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   328
      SDL_free(haptic->hwdata);
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   329
      haptic->hwdata = NULL;
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   330
   }
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   331
}
bobbens@2520
   332
bobbens@2520
   333
bobbens@2520
   334
/* 
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   335
 * Clean up after system specific haptic stuff
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   336
 */
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   337
void
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   338
SDL_SYS_HapticQuit(void)
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   339
{
bobbens@2520
   340
   int i;
bobbens@2520
   341
bobbens@2520
   342
   for (i=0; i < SDL_numhaptics; i++) {
bobbens@2530
   343
      /* Opened and not closed haptics are leaked, this is on purpose.
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   344
       * Close your haptic devices after usage. */
bobbens@2530
   345
bobbens@2530
   346
      /* Free the io_service_t */
bobbens@2520
   347
      IOObjectRelease(SDL_hapticlist[i].dev);
bobbens@2520
   348
   }
bobbens@2520
   349
}
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   350
bobbens@2520
   351
bobbens@2520
   352
/*
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   353
 * Sets the direction.
bobbens@2520
   354
 */
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   355
static int
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   356
SDL_SYS_SetDirection( FFEFFECT * effect, SDL_HapticDirection *dir, int naxes )
bobbens@2520
   357
{
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   358
   LONG *rglDir;
bobbens@2527
   359
bobbens@2527
   360
   /* Handle no axes a part. */
bobbens@2528
   361
   if (naxes == 0) {
bobbens@2527
   362
      effect->rglDirection = NULL;
bobbens@2527
   363
      return 0;
bobbens@2527
   364
   }
bobbens@2527
   365
bobbens@2527
   366
   /* Has axes. */
bobbens@2529
   367
   rglDir = SDL_malloc( sizeof(LONG) * naxes );
bobbens@2527
   368
   if (rglDir == NULL) {
bobbens@2520
   369
      SDL_OutOfMemory();
bobbens@2520
   370
      return -1;
bobbens@2520
   371
   }
bobbens@2529
   372
   SDL_memset( rglDir, 0, sizeof(LONG) * naxes );
bobbens@2521
   373
   effect->rglDirection = rglDir;
bobbens@2520
   374
bobbens@2520
   375
   switch (dir->type) {
bobbens@2520
   376
      case SDL_HAPTIC_POLAR:
bobbens@2520
   377
         effect->dwFlags |= FFEFF_POLAR;
bobbens@2521
   378
         rglDir[0] = dir->dir[0];
bobbens@2520
   379
         return 0;
bobbens@2520
   380
      case SDL_HAPTIC_CARTESIAN:
bobbens@2522
   381
         effect->dwFlags |= FFEFF_CARTESIAN;
bobbens@2521
   382
         rglDir[0] = dir->dir[0];
bobbens@2521
   383
         rglDir[1] = dir->dir[1];
bobbens@2521
   384
         rglDir[2] = dir->dir[2];
bobbens@2520
   385
         return 0;
bobbens@2521
   386
      case SDL_HAPTIC_SPHERICAL:
bobbens@2522
   387
         effect->dwFlags |= FFEFF_SPHERICAL;
bobbens@2521
   388
         rglDir[0] = dir->dir[0];
bobbens@2521
   389
         rglDir[1] = dir->dir[1];
bobbens@2521
   390
         rglDir[2] = dir->dir[2];
bobbens@2520
   391
         return 0;
bobbens@2520
   392
bobbens@2520
   393
      default:
bobbens@2520
   394
         SDL_SetError("Haptic: Unknown direction type.");
bobbens@2520
   395
         return -1;
bobbens@2520
   396
   }
bobbens@2520
   397
}
bobbens@2520
   398
bobbens@2520
   399
#define CONVERT(x)   (((x)*10000) / 0xFFFF )
bobbens@2520
   400
/*
bobbens@2527
   401
 * Creates the FFEFFECT from a SDL_HapticEffect.
bobbens@2520
   402
 */
bobbens@2520
   403
static int
bobbens@2527
   404
SDL_SYS_ToFFEFFECT( SDL_Haptic * haptic, FFEFFECT * dest, SDL_HapticEffect * src )
bobbens@2520
   405
{
bobbens@2530
   406
   int i;
bobbens@2520
   407
   FFCONSTANTFORCE *constant;
bobbens@2520
   408
   FFPERIODIC *periodic;
bobbens@2530
   409
   FFCONDITION *condition; /* Actually an array of conditions - one per axis. */
bobbens@2520
   410
   FFRAMPFORCE *ramp;
bobbens@2520
   411
   FFCUSTOMFORCE *custom;
bobbens@2522
   412
   FFENVELOPE *envelope;
bobbens@2520
   413
   SDL_HapticConstant *hap_constant;
bobbens@2521
   414
   SDL_HapticPeriodic *hap_periodic;
bobbens@2520
   415
   SDL_HapticCondition *hap_condition;
bobbens@2520
   416
   SDL_HapticRamp *hap_ramp;
bobbens@2527
   417
   DWORD *axes;
bobbens@2520
   418
bobbens@2520
   419
   /* Set global stuff. */
bobbens@2520
   420
   SDL_memset(dest, 0, sizeof(FFEFFECT));
bobbens@2520
   421
   dest->dwSize = sizeof(FFEFFECT); /* Set the structure size. */
bobbens@2520
   422
   dest->dwSamplePeriod = 0; /* Not used by us. */
bobbens@2520
   423
   dest->dwGain = 10000; /* Gain is set globally, not locally. */
bobbens@2522
   424
bobbens@2522
   425
   /* Envelope. */
bobbens@2522
   426
   envelope = SDL_malloc( sizeof(FFENVELOPE) );
bobbens@2522
   427
   if (envelope == NULL) {
bobbens@2522
   428
      SDL_OutOfMemory();
bobbens@2522
   429
      return -1;
bobbens@2522
   430
   }
bobbens@2522
   431
   SDL_memset(envelope, 0, sizeof(FFENVELOPE));
bobbens@2522
   432
   dest->lpEnvelope = envelope;
bobbens@2522
   433
   envelope->dwSize = sizeof(FFENVELOPE); /* Always should be this. */
bobbens@2520
   434
bobbens@2527
   435
   /* Axes. */
bobbens@2527
   436
   dest->cAxes = haptic->naxes;
bobbens@2527
   437
   if (dest->cAxes > 0) {
bobbens@2527
   438
      axes = SDL_malloc(sizeof(DWORD) * dest->cAxes);
bobbens@2527
   439
      if (axes == NULL) {
bobbens@2527
   440
         SDL_OutOfMemory();
bobbens@2527
   441
         return -1;
bobbens@2527
   442
      }
bobbens@2527
   443
      axes[0] = FFJOFS_X; /* Always at least one axis. */
bobbens@2527
   444
      if (dest->cAxes > 1) {
bobbens@2527
   445
         axes[1] = FFJOFS_Y;
bobbens@2527
   446
      }
bobbens@2527
   447
      if (dest->cAxes > 2) {
bobbens@2527
   448
         axes[2] = FFJOFS_Z;
bobbens@2527
   449
      }
bobbens@2527
   450
      dest->rgdwAxes = axes;
bobbens@2527
   451
   }
bobbens@2527
   452
bobbens@2527
   453
bobbens@2530
   454
   /* The big type handling switch, even bigger then linux's version. */
bobbens@2520
   455
   switch (src->type) {
bobbens@2520
   456
      case SDL_HAPTIC_CONSTANT:
bobbens@2520
   457
         hap_constant = &src->constant;
bobbens@2520
   458
         constant = SDL_malloc( sizeof(FFCONSTANTFORCE) );
bobbens@2527
   459
         if (constant == NULL) {
bobbens@2527
   460
            SDL_OutOfMemory();
bobbens@2527
   461
            return -1;
bobbens@2527
   462
         }
bobbens@2520
   463
bobbens@2520
   464
         /* Specifics */
bobbens@2520
   465
         constant->lMagnitude = CONVERT(hap_constant->level);
bobbens@2520
   466
         dest->cbTypeSpecificParams = sizeof(FFCONSTANTFORCE); 
bobbens@2520
   467
         dest->lpvTypeSpecificParams = constant;
bobbens@2520
   468
bobbens@2520
   469
         /* Generics */
bobbens@2521
   470
         dest->dwDuration = hap_constant->length * 1000; /* In microseconds. */
bobbens@2520
   471
         dest->dwTriggerButton = FFJOFS_BUTTON(hap_constant->button);
bobbens@2520
   472
         dest->dwTriggerRepeatInterval = hap_constant->interval;
bobbens@2521
   473
         dest->dwStartDelay = hap_constant->delay * 1000; /* In microseconds. */
bobbens@2520
   474
bobbens@2520
   475
         /* Direction. */
bobbens@2522
   476
         if (SDL_SYS_SetDirection(dest, &hap_constant->direction, dest->cAxes) < 0) {
bobbens@2520
   477
            return -1;
bobbens@2520
   478
         }
bobbens@2520
   479
         
bobbens@2520
   480
         /* Envelope */
bobbens@2522
   481
         envelope->dwAttackLevel = CONVERT(hap_constant->attack_level);
bobbens@2522
   482
         envelope->dwAttackTime = hap_constant->attack_length * 1000;
bobbens@2522
   483
         envelope->dwFadeLevel = CONVERT(hap_constant->fade_level);
bobbens@2522
   484
         envelope->dwFadeTime = hap_constant->fade_length * 1000;
bobbens@2520
   485
bobbens@2520
   486
         break;
bobbens@2520
   487
bobbens@2520
   488
      case SDL_HAPTIC_SINE:
bobbens@2520
   489
      case SDL_HAPTIC_SQUARE:
bobbens@2520
   490
      case SDL_HAPTIC_TRIANGLE:
bobbens@2520
   491
      case SDL_HAPTIC_SAWTOOTHUP:
bobbens@2520
   492
      case SDL_HAPTIC_SAWTOOTHDOWN:
bobbens@2522
   493
         hap_periodic = &src->periodic;
bobbens@2527
   494
         periodic = SDL_malloc(sizeof(FFPERIODIC));
bobbens@2527
   495
         if (periodic == NULL) {
bobbens@2527
   496
            SDL_OutOfMemory();
bobbens@2527
   497
            return -1;
bobbens@2527
   498
         }
bobbens@2527
   499
bobbens@2527
   500
         /* Specifics */
bobbens@2527
   501
         periodic->dwMagnitude = CONVERT(hap_periodic->magnitude);
bobbens@2527
   502
         periodic->lOffset = CONVERT(hap_periodic->offset);
bobbens@2527
   503
         periodic->dwPhase = hap_periodic->phase;
bobbens@2527
   504
         periodic->dwPeriod = hap_periodic->period * 1000;
bobbens@2527
   505
         dest->cbTypeSpecificParams = sizeof(FFPERIODIC);
bobbens@2527
   506
         dest->lpvTypeSpecificParams = periodic;
bobbens@2527
   507
bobbens@2527
   508
         /* Generics */
bobbens@2527
   509
         dest->dwDuration = hap_periodic->length * 1000; /* In microseconds. */
bobbens@2527
   510
         dest->dwTriggerButton = FFJOFS_BUTTON(hap_periodic->button);
bobbens@2527
   511
         dest->dwTriggerRepeatInterval = hap_periodic->interval;
bobbens@2527
   512
         dest->dwStartDelay = hap_periodic->delay * 1000; /* In microseconds. */
bobbens@2527
   513
         
bobbens@2527
   514
         /* Direction. */
bobbens@2527
   515
         if (SDL_SYS_SetDirection(dest, &hap_periodic->direction, dest->cAxes) < 0) {
bobbens@2527
   516
            return -1;
bobbens@2527
   517
         }
bobbens@2527
   518
         
bobbens@2527
   519
         /* Envelope */
bobbens@2527
   520
         envelope->dwAttackLevel = CONVERT(hap_periodic->attack_level);
bobbens@2527
   521
         envelope->dwAttackTime = hap_periodic->attack_length * 1000;
bobbens@2527
   522
         envelope->dwFadeLevel = CONVERT(hap_periodic->fade_level);
bobbens@2527
   523
         envelope->dwFadeTime = hap_periodic->fade_length * 1000;
bobbens@2520
   524
bobbens@2520
   525
         break;
bobbens@2520
   526
bobbens@2520
   527
      case SDL_HAPTIC_SPRING:
bobbens@2520
   528
      case SDL_HAPTIC_DAMPER:
bobbens@2520
   529
      case SDL_HAPTIC_INERTIA:
bobbens@2520
   530
      case SDL_HAPTIC_FRICTION:
bobbens@2522
   531
         hap_condition = &src->condition;
bobbens@2530
   532
         condition = SDL_malloc(sizeof(FFCONDITION) * dest->cAxes);
bobbens@2530
   533
         if (condition == NULL) {
bobbens@2530
   534
            SDL_OutOfMemory();
bobbens@2530
   535
            return -1;
bobbens@2530
   536
         }
bobbens@2530
   537
bobbens@2530
   538
         /* Specifics */
bobbens@2530
   539
         for (i=0; i<dest->cAxes; i++) {
bobbens@2531
   540
            condition[i].lOffset = CONVERT(hap_condition->center[i]);
bobbens@2531
   541
            condition[i].lPositiveCoefficient = CONVERT(hap_condition->right_coeff[i]);
bobbens@2531
   542
            condition[i].lNegativeCoefficient = CONVERT(hap_condition->left_coeff[i]);
bobbens@2531
   543
            condition[i].dwPositiveSaturation = CONVERT(hap_condition->right_sat[i]);
bobbens@2531
   544
            condition[i].dwNegativeSaturation = CONVERT(hap_condition->left_sat[i]);
bobbens@2531
   545
            condition[i].lDeadBand = CONVERT(hap_condition->deadband[i]);
bobbens@2530
   546
         }
bobbens@2530
   547
         dest->cbTypeSpecificParams = sizeof(FFCONDITION) * dest->cAxes;
bobbens@2530
   548
         dest->lpvTypeSpecificParams = condition;
bobbens@2530
   549
bobbens@2530
   550
         /* Generics */
bobbens@2531
   551
         dest->dwDuration = hap_condition->length * 1000; /* In microseconds. */
bobbens@2531
   552
         dest->dwTriggerButton = FFJOFS_BUTTON(hap_condition->button);
bobbens@2531
   553
         dest->dwTriggerRepeatInterval = hap_condition->interval;
bobbens@2531
   554
         dest->dwStartDelay = hap_condition->delay * 1000; /* In microseconds. */
bobbens@2530
   555
bobbens@2530
   556
         /* Direction. */
bobbens@2531
   557
         if (SDL_SYS_SetDirection(dest, &hap_condition->direction, dest->cAxes) < 0) {
bobbens@2530
   558
            return -1;                
bobbens@2530
   559
         }                            
bobbens@2530
   560
                                      
bobbens@2532
   561
         /* Envelope */
bobbens@2532
   562
/* TODO Check is envelope actually used.
bobbens@2531
   563
         envelope->dwAttackLevel = CONVERT(hap_condition->attack_level);
bobbens@2531
   564
         envelope->dwAttackTime = hap_condition->attack_length * 1000;
bobbens@2531
   565
         envelope->dwFadeLevel = CONVERT(hap_condition->fade_level);
bobbens@2531
   566
         envelope->dwFadeTime = hap_condition->fade_length * 1000;
bobbens@2532
   567
*/
bobbens@2520
   568
bobbens@2520
   569
         break;
bobbens@2520
   570
bobbens@2520
   571
      case SDL_HAPTIC_RAMP:
bobbens@2522
   572
         hap_ramp = &src->ramp;
bobbens@2533
   573
         ramp = SDL_malloc(sizeof(FFRAMPFORCE));
bobbens@2533
   574
         if (ramp == NULL) {
bobbens@2533
   575
            SDL_OutOfMemory();
bobbens@2533
   576
            return -1;
bobbens@2533
   577
         }
bobbens@2533
   578
bobbens@2533
   579
         /* Specifics */
bobbens@2534
   580
         ramp->lStart = CONVERT(hap_ramp->start);
bobbens@2533
   581
         ramp->lEnd = CONVERT(hap_ramp->end);
bobbens@2533
   582
bobbens@2533
   583
         /* Generics */
bobbens@2533
   584
         dest->dwDuration = hap_ramp->length * 1000; /* In microseconds. */
bobbens@2533
   585
         dest->dwTriggerButton = FFJOFS_BUTTON(hap_ramp->button);
bobbens@2533
   586
         dest->dwTriggerRepeatInterval = hap_ramp->interval;
bobbens@2533
   587
         dest->dwStartDelay = hap_ramp->delay * 1000; /* In microseconds. */
bobbens@2533
   588
bobbens@2533
   589
         /* Direction. */
bobbens@2533
   590
         if (SDL_SYS_SetDirection(dest, &hap_ramp->direction, dest->cAxes) < 0) {
bobbens@2533
   591
            return -1;
bobbens@2533
   592
         }
bobbens@2533
   593
bobbens@2533
   594
         /* Envelope */
bobbens@2533
   595
         envelope->dwAttackLevel = CONVERT(hap_ramp->attack_level);
bobbens@2533
   596
         envelope->dwAttackTime = hap_ramp->attack_length * 1000;
bobbens@2533
   597
         envelope->dwFadeLevel = CONVERT(hap_ramp->fade_level);
bobbens@2533
   598
         envelope->dwFadeTime = hap_ramp->fade_length * 1000;
bobbens@2520
   599
bobbens@2520
   600
         break;
bobbens@2520
   601
bobbens@2520
   602
bobbens@2520
   603
      default:
bobbens@2520
   604
         SDL_SetError("Haptic: Unknown effect type.");
bobbens@2520
   605
         return -1;
bobbens@2520
   606
   }
bobbens@2520
   607
bobbens@2520
   608
   return 0;
bobbens@2520
   609
}
bobbens@2520
   610
bobbens@2520
   611
bobbens@2520
   612
/*
bobbens@2527
   613
 * Frees an FFEFFECT allocated by SDL_SYS_ToFFEFFECT.
bobbens@2527
   614
 */
bobbens@2531
   615
static void
bobbens@2531
   616
SDL_SYS_HapticFreeFFEFFECT( FFEFFECT * effect )
bobbens@2527
   617
{
bobbens@2527
   618
   if (effect->lpEnvelope != NULL) {
bobbens@2527
   619
      SDL_free(effect->lpEnvelope);
bobbens@2527
   620
      effect->lpEnvelope = NULL;
bobbens@2527
   621
   }
bobbens@2527
   622
   if (effect->rgdwAxes != NULL) {
bobbens@2527
   623
      SDL_free(effect->rgdwAxes);
bobbens@2527
   624
      effect->rgdwAxes = NULL;
bobbens@2527
   625
   }
bobbens@2527
   626
   if (effect->lpvTypeSpecificParams != NULL) {
bobbens@2527
   627
      SDL_free(effect->lpvTypeSpecificParams);
bobbens@2527
   628
      effect->lpvTypeSpecificParams = NULL;
bobbens@2527
   629
   }
bobbens@2527
   630
   if (effect->rglDirection != NULL) {
bobbens@2527
   631
      SDL_free(effect->rglDirection);
bobbens@2527
   632
      effect->rglDirection = NULL;
bobbens@2527
   633
   }
bobbens@2527
   634
}
bobbens@2527
   635
bobbens@2527
   636
bobbens@2527
   637
/*
bobbens@2520
   638
 * Gets the effect type from the generic SDL haptic effect wrapper.
bobbens@2520
   639
 */
bobbens@2531
   640
CFUUIDRef
bobbens@2531
   641
SDL_SYS_HapticEffectType(struct haptic_effect * effect)
bobbens@2520
   642
{
bobbens@2521
   643
   switch (effect->effect.type) {
bobbens@2520
   644
      case SDL_HAPTIC_CONSTANT:
bobbens@2520
   645
         return kFFEffectType_ConstantForce_ID;
bobbens@2520
   646
bobbens@2520
   647
      case SDL_HAPTIC_RAMP:
bobbens@2520
   648
         return kFFEffectType_RampForce_ID;
bobbens@2520
   649
bobbens@2520
   650
      case SDL_HAPTIC_SQUARE:
bobbens@2520
   651
         return kFFEffectType_Square_ID;
bobbens@2520
   652
bobbens@2520
   653
      case SDL_HAPTIC_SINE:
bobbens@2520
   654
         return kFFEffectType_Sine_ID;
bobbens@2520
   655
bobbens@2521
   656
      case SDL_HAPTIC_TRIANGLE:
bobbens@2520
   657
         return kFFEffectType_Triangle_ID;
bobbens@2520
   658
bobbens@2520
   659
      case SDL_HAPTIC_SAWTOOTHUP:
bobbens@2520
   660
         return kFFEffectType_SawtoothUp_ID;
bobbens@2520
   661
bobbens@2520
   662
      case SDL_HAPTIC_SAWTOOTHDOWN:
bobbens@2520
   663
         return kFFEffectType_SawtoothDown_ID;
bobbens@2520
   664
bobbens@2520
   665
      case SDL_HAPTIC_SPRING:
bobbens@2520
   666
         return kFFEffectType_Spring_ID;
bobbens@2520
   667
bobbens@2520
   668
      case SDL_HAPTIC_DAMPER:
bobbens@2520
   669
         return kFFEffectType_Damper_ID;
bobbens@2520
   670
bobbens@2520
   671
      case SDL_HAPTIC_INERTIA:
bobbens@2520
   672
         return kFFEffectType_Inertia_ID;
bobbens@2520
   673
bobbens@2520
   674
      case SDL_HAPTIC_FRICTION:
bobbens@2520
   675
         return kFFEffectType_Friction_ID;
bobbens@2520
   676
bobbens@2520
   677
      case SDL_HAPTIC_CUSTOM:
bobbens@2520
   678
         return kFFEffectType_CustomForce_ID;
bobbens@2520
   679
bobbens@2520
   680
      default:
bobbens@2520
   681
         SDL_SetError("Haptic: Unknown effect type.");
bobbens@2520
   682
         return NULL;
bobbens@2520
   683
   }
bobbens@2520
   684
}
bobbens@2520
   685
bobbens@2520
   686
bobbens@2520
   687
/*
bobbens@2520
   688
 * Creates a new haptic effect.
bobbens@2520
   689
 */
bobbens@2520
   690
int
bobbens@2520
   691
SDL_SYS_HapticNewEffect(SDL_Haptic * haptic, struct haptic_effect * effect,
bobbens@2520
   692
      SDL_HapticEffect * base)
bobbens@2520
   693
{
bobbens@2520
   694
   HRESULT ret;
bobbens@2520
   695
   CFUUIDRef type;
bobbens@2520
   696
bobbens@2520
   697
   /* Alloc the effect. */
bobbens@2520
   698
   effect->hweffect = (struct haptic_hweffect *)
bobbens@2520
   699
         SDL_malloc(sizeof(struct haptic_hweffect));
bobbens@2520
   700
   if (effect->hweffect == NULL) {
bobbens@2520
   701
      SDL_OutOfMemory();
bobbens@2527
   702
      goto err_hweffect;
bobbens@2520
   703
   }
bobbens@2520
   704
bobbens@2520
   705
   /* Get the type. */
bobbens@2520
   706
   type = SDL_SYS_HapticEffectType(effect);
bobbens@2520
   707
   if (type == NULL) {
bobbens@2527
   708
      goto err_hweffect;
bobbens@2520
   709
   }
bobbens@2520
   710
bobbens@2520
   711
   /* Get the effect. */
bobbens@2527
   712
   if (SDL_SYS_ToFFEFFECT(haptic, &effect->hweffect->effect, &effect->effect ) < 0) {
bobbens@2527
   713
      goto err_effectdone;
bobbens@2520
   714
   }
bobbens@2520
   715
bobbens@2527
   716
   /* Create the actual effect. */
bobbens@2520
   717
   ret = FFDeviceCreateEffect( haptic->hwdata->device, type,
bobbens@2520
   718
         &effect->hweffect->effect, &effect->hweffect->ref );
bobbens@2527
   719
bobbens@2527
   720
   if (ret != FF_OK) {
bobbens@2527
   721
      SDL_SetError("Haptic: Unable to create effect.");
bobbens@2527
   722
      goto err_effectdone;
bobbens@2527
   723
   }
bobbens@2527
   724
bobbens@2527
   725
   return 0;
bobbens@2527
   726
bobbens@2527
   727
err_effectdone:
bobbens@2527
   728
   SDL_SYS_HapticFreeFFEFFECT(&effect->hweffect->effect);
bobbens@2527
   729
err_hweffect:
bobbens@2527
   730
   if (effect->hweffect != NULL) {
bobbens@2527
   731
      SDL_free(effect->hweffect);
bobbens@2527
   732
      effect->hweffect = NULL;
bobbens@2527
   733
   }
bobbens@2527
   734
   return -1;
bobbens@2520
   735
}
bobbens@2520
   736
bobbens@2520
   737
bobbens@2520
   738
/*
bobbens@2520
   739
 * Updates an effect.
bobbens@2520
   740
 */
bobbens@2531
   741
int
bobbens@2531
   742
SDL_SYS_HapticUpdateEffect(SDL_Haptic * haptic,
bobbens@2520
   743
      struct haptic_effect * effect, SDL_HapticEffect * data)
bobbens@2520
   744
{
bobbens@2520
   745
   /* TODO */
bobbens@2520
   746
   return -1;
bobbens@2520
   747
}
bobbens@2520
   748
bobbens@2520
   749
bobbens@2520
   750
/*
bobbens@2520
   751
 * Runs an effect.
bobbens@2520
   752
 */
bobbens@2520
   753
int
bobbens@2520
   754
SDL_SYS_HapticRunEffect(SDL_Haptic * haptic, struct haptic_effect * effect,
bobbens@2520
   755
                        Uint32 iterations)
bobbens@2520
   756
{
bobbens@2520
   757
   HRESULT ret;
bobbens@2520
   758
   Uint32 iter;
bobbens@2520
   759
bobbens@2520
   760
   /* Check if it's infinite. */
bobbens@2520
   761
   if (iterations == SDL_HAPTIC_INFINITY) {
bobbens@2521
   762
      iter = FF_INFINITE;
bobbens@2520
   763
   }
bobbens@2520
   764
   else
bobbens@2520
   765
      iter = iterations;
bobbens@2520
   766
bobbens@2520
   767
   /* Run the effect. */
bobbens@2520
   768
   ret = FFEffectStart(effect->hweffect->ref, iter, 0);
bobbens@2520
   769
   if (ret != FF_OK) {
bobbens@2520
   770
      SDL_SetError("Haptic: Unable to run the effect.");
bobbens@2520
   771
      return -1;
bobbens@2520
   772
   }
bobbens@2520
   773
bobbens@2520
   774
   return 0;
bobbens@2520
   775
}
bobbens@2520
   776
bobbens@2520
   777
bobbens@2520
   778
/*
bobbens@2520
   779
 * Stops an effect.
bobbens@2520
   780
 */
bobbens@2520
   781
int
bobbens@2520
   782
SDL_SYS_HapticStopEffect(SDL_Haptic * haptic, struct haptic_effect * effect)
bobbens@2520
   783
{
bobbens@2520
   784
   HRESULT ret;
bobbens@2520
   785
bobbens@2520
   786
   ret = FFEffectStop(effect->hweffect->ref);
bobbens@2520
   787
   if (ret != FF_OK) {
bobbens@2520
   788
      SDL_SetError("Haptic: Unable to stop the effect.");
bobbens@2520
   789
      return -1;
bobbens@2520
   790
   }
bobbens@2520
   791
bobbens@2520
   792
   return 0;
bobbens@2520
   793
}
bobbens@2520
   794
bobbens@2520
   795
bobbens@2520
   796
/*
bobbens@2520
   797
 * Frees the effect.
bobbens@2520
   798
 */
bobbens@2520
   799
void
bobbens@2520
   800
SDL_SYS_HapticDestroyEffect(SDL_Haptic * haptic, struct haptic_effect * effect)
bobbens@2520
   801
{
bobbens@2520
   802
   HRESULT ret;
bobbens@2520
   803
bobbens@2520
   804
   ret = FFDeviceReleaseEffect(haptic->hwdata->device, effect->hweffect->ref);
bobbens@2520
   805
   if (ret != FF_OK) {
bobbens@2520
   806
      SDL_SetError("Haptic: Error removing the effect from the device.");
bobbens@2520
   807
   }
bobbens@2520
   808
   SDL_free(effect->hweffect->effect.lpvTypeSpecificParams);
bobbens@2520
   809
   effect->hweffect->effect.lpvTypeSpecificParams = NULL;
bobbens@2520
   810
   SDL_free(effect->hweffect);
bobbens@2520
   811
   effect->hweffect = NULL;
bobbens@2520
   812
}
bobbens@2520
   813
bobbens@2520
   814
bobbens@2520
   815
/*
bobbens@2520
   816
 * Gets the status of a haptic effect.
bobbens@2520
   817
 */
bobbens@2520
   818
int
bobbens@2520
   819
SDL_SYS_HapticGetEffectStatus(SDL_Haptic * haptic, struct haptic_effect * effect)
bobbens@2520
   820
{
bobbens@2520
   821
   HRESULT ret;
bobbens@2520
   822
   FFEffectStatusFlag status;
bobbens@2520
   823
bobbens@2521
   824
   ret = FFEffectGetEffectStatus(effect->hweffect->ref, &status);
bobbens@2520
   825
   if (ret != FF_OK) {
bobbens@2520
   826
      SDL_SetError("Haptic: Unable to get effect status.");
bobbens@2520
   827
      return -1;
bobbens@2520
   828
   }
bobbens@2520
   829
bobbens@2520
   830
   if (status == 0) return SDL_FALSE;
bobbens@2520
   831
   return SDL_TRUE; /* Assume it's playing or emulated. */
bobbens@2520
   832
}
bobbens@2520
   833
bobbens@2520
   834
bobbens@2520
   835
/*
bobbens@2520
   836
 * Sets the gain.
bobbens@2520
   837
 */
bobbens@2520
   838
int
bobbens@2520
   839
SDL_SYS_HapticSetGain(SDL_Haptic * haptic, int gain)
bobbens@2520
   840
{
bobbens@2520
   841
   HRESULT ret;
bobbens@2520
   842
   Uint32 val;
bobbens@2520
   843
bobbens@2520
   844
   val = gain * 100; /* Mac OS X uses 0 to 10,000 */
bobbens@2520
   845
   ret = FFDeviceSetForceFeedbackProperty(haptic->hwdata->device, FFPROP_FFGAIN, &val);
bobbens@2520
   846
   if (ret != FF_OK) {
bobbens@2520
   847
      SDL_SetError("Haptic: Error setting gain.");
bobbens@2520
   848
      return -1;
bobbens@2520
   849
   }
bobbens@2520
   850
bobbens@2520
   851
   return 0;
bobbens@2520
   852
}
bobbens@2520
   853
bobbens@2520
   854
bobbens@2520
   855
/*
bobbens@2520
   856
 * Sets the autocentering.
bobbens@2520
   857
 */
bobbens@2520
   858
int
bobbens@2520
   859
SDL_SYS_HapticSetAutocenter(SDL_Haptic * haptic, int autocenter)
bobbens@2520
   860
{
bobbens@2520
   861
   HRESULT ret;
bobbens@2520
   862
   Uint32 val;
bobbens@2520
   863
bobbens@2520
   864
   /* Mac OS X only has 0 (off) and 1 (on) */
bobbens@2520
   865
   if (autocenter == 0) val = 0;
bobbens@2520
   866
   else val = 1;
bobbens@2520
   867
bobbens@2520
   868
   ret = FFDeviceSetForceFeedbackProperty(haptic->hwdata->device,
bobbens@2521
   869
               FFPROP_AUTOCENTER, &val);
bobbens@2520
   870
   if (ret != FF_OK) {
bobbens@2520
   871
      SDL_SetError("Haptic: Error setting autocenter.");
bobbens@2520
   872
      return -1;
bobbens@2520
   873
   }
bobbens@2520
   874
  
bobbens@2520
   875
   return 0;
bobbens@2520
   876
bobbens@2520
   877
}
bobbens@2520
   878
bobbens@2520
   879
bobbens@2520
   880
#endif /* SDL_HAPTIC_LINUX */