src/haptic/windows/SDL_syshaptic.c
author Sam Lantinga
Tue, 19 Apr 2011 08:08:50 -0700
changeset 5539 b305e3c2d2e7
parent 5535 96594ac5fd1a
child 5591 17beb16fa838
permissions -rw-r--r--
Fixed: Windows always fails with SDL_HapticOpenFromJoystick

The windows function SDL_SYS_HapticOpenFromJoystick fails because DIDEVICEINSTANCE joy_instance does not have its dwSize field initialized. The attached patch includes the fix along with a fix for two similar problems.

Daniel Heath
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/*
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  Simple DirectMedia Layer
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  Copyright (C) 1997-2011 Sam Lantinga <slouken@libsdl.org>
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  This software is provided 'as-is', without any express or implied
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  warranty.  In no event will the authors be held liable for any damages
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  arising from the use of this software.
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  Permission is granted to anyone to use this software for any purpose,
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  including commercial applications, and to alter it and redistribute it
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  freely, subject to the following restrictions:
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  1. The origin of this software must not be misrepresented; you must not
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     claim that you wrote the original software. If you use this software
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     in a product, an acknowledgment in the product documentation would be
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     appreciated but is not required.
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  2. Altered source versions must be plainly marked as such, and must not be
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     misrepresented as being the original software.
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  3. This notice may not be removed or altered from any source distribution.
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*/
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#include "SDL_config.h"
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#ifdef SDL_HAPTIC_DINPUT
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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/windows/SDL_dxjoystick_c.h"      /* For joystick hwdata */
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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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    DIDEVICEINSTANCE instance;
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    char *name;
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    SDL_Haptic *haptic;
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    DIDEVCAPS capabilities;
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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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    LPDIRECTINPUTDEVICE2 device;
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    DWORD axes[3];              /* Axes to use. */
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    int is_joystick;            /* Device is loaded as joystick. */
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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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    DIEFFECT effect;
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    LPDIRECTINPUTEFFECT ref;
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};
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/*
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 * Internal stuff.
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 */
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static LPDIRECTINPUT dinput = NULL;
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/*
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 * External stuff.
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 */
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extern HWND SDL_HelperWindow;
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/*
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 * Prototypes.
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 */
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static void DI_SetError(const char *str, HRESULT err);
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static int DI_GUIDIsSame(const GUID * a, const GUID * b);
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static int SDL_SYS_HapticOpenFromInstance(SDL_Haptic * haptic,
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                                          DIDEVICEINSTANCE instance);
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static int SDL_SYS_HapticOpenFromDevice2(SDL_Haptic * haptic,
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                                         LPDIRECTINPUTDEVICE2 device2);
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static DWORD DIGetTriggerButton(Uint16 button);
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static int SDL_SYS_SetDirection(DIEFFECT * effect, SDL_HapticDirection * dir,
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                                int naxes);
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static int SDL_SYS_ToDIEFFECT(SDL_Haptic * haptic, DIEFFECT * dest,
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                              SDL_HapticEffect * src);
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static void SDL_SYS_HapticFreeDIEFFECT(DIEFFECT * effect, int type);
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static REFGUID SDL_SYS_HapticEffectType(SDL_HapticEffect * effect);
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/* Callbacks. */
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static BOOL CALLBACK EnumHapticsCallback(const DIDEVICEINSTANCE *
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                                         pdidInstance, VOID * pContext);
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static BOOL CALLBACK DI_EffectCallback(LPCDIEFFECTINFO pei, LPVOID pv);
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/* 
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 * Like SDL_SetError but for DX error codes.
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 */
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static void
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DI_SetError(const char *str, HRESULT err)
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{
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    /*
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       SDL_SetError("Haptic: %s - %s: %s", str,
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       DXGetErrorString8A(err), DXGetErrorDescription8A(err));
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     */
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    SDL_SetError("Haptic error %s", str);
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}
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/*
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 * Checks to see if two GUID are the same.
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 */
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static int
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DI_GUIDIsSame(const GUID * a, const GUID * b)
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{
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    if (((a)->Data1 == (b)->Data1) &&
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        ((a)->Data2 == (b)->Data2) &&
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        ((a)->Data3 == (b)->Data3) &&
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        (SDL_strcmp((a)->Data4, (b)->Data4) == 0))
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        return 1;
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    return 0;
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}
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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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    HRESULT ret;
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    HINSTANCE instance;
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    if (dinput != NULL) {       /* Already open. */
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        SDL_SetError("Haptic: SubSystem already open.");
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        return -1;
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    }
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    /* Clear all the memory. */
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    SDL_memset(SDL_hapticlist, 0, sizeof(SDL_hapticlist));
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    SDL_numhaptics = 0;
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    ret = CoInitialize(NULL);
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    if (FAILED(ret)) {
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        DI_SetError("Coinitialize", ret);
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        return -1;
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    }
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    ret = CoCreateInstance(&CLSID_DirectInput, NULL, CLSCTX_INPROC_SERVER,
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                           &IID_IDirectInput, (LPVOID) & dinput);
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    if (FAILED(ret)) {
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        DI_SetError("CoCreateInstance", ret);
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        return -1;
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    }
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    /* Because we used CoCreateInstance, we need to Initialize it, first. */
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    instance = GetModuleHandle(NULL);
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    if (instance == NULL) {
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        SDL_SetError("GetModuleHandle() failed with error code %d.",
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                     GetLastError());
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        return -1;
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    }
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    ret = IDirectInput_Initialize(dinput, instance, DIRECTINPUT_VERSION);
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    if (FAILED(ret)) {
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        DI_SetError("Initializing DirectInput device", ret);
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        return -1;
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    }
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    /* Look for haptic devices. */
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    ret = IDirectInput_EnumDevices(dinput,
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                                   0,
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                                   EnumHapticsCallback,
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                                   NULL,
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                                   DIEDFL_FORCEFEEDBACK |
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                                   DIEDFL_ATTACHEDONLY);
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    if (FAILED(ret)) {
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        DI_SetError("Enumerating DirectInput devices", ret);
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        return -1;
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    }
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    return SDL_numhaptics;
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}
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/*
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 * Callback to find the haptic devices.
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 */
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static BOOL CALLBACK
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EnumHapticsCallback(const DIDEVICEINSTANCE * pdidInstance, VOID * pContext)
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{
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    HRESULT ret;
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    LPDIRECTINPUTDEVICE device;
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    /* Copy the instance over, useful for creating devices. */
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    SDL_memcpy(&SDL_hapticlist[SDL_numhaptics].instance, pdidInstance,
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               sizeof(DIDEVICEINSTANCE));
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    /* Open the device */
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    ret = IDirectInput_CreateDevice(dinput, &pdidInstance->guidInstance,
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                                    &device, NULL);
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    if (FAILED(ret)) {
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        /* DI_SetError("Creating DirectInput device",ret); */
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        return DIENUM_CONTINUE;
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    }
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    /* Get capabilities. */
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    SDL_hapticlist[SDL_numhaptics].capabilities.dwSize = sizeof(DIDEVCAPS);
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    ret = IDirectInputDevice_GetCapabilities(device,
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                                             &SDL_hapticlist[SDL_numhaptics].
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                                             capabilities);
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    if (FAILED(ret)) {
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        /* DI_SetError("Getting device capabilities",ret); */
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        IDirectInputDevice_Release(device);
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        return DIENUM_CONTINUE;
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    }
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    /* Copy the name */
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    SDL_hapticlist[SDL_numhaptics].name = WIN_StringToUTF8(SDL_hapticlist[SDL_numhaptics].instance.tszProductName);
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    /* Close up device and count it. */
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    IDirectInputDevice_Release(device);
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    SDL_numhaptics++;
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    /* Watch out for hard limit. */
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    if (SDL_numhaptics >= MAX_HAPTICS)
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        return DIENUM_STOP;
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    return DIENUM_CONTINUE;
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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 SDL_hapticlist[index].name;
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}
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/*
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 * Callback to get all supported effects.
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 */
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#define EFFECT_TEST(e,s)               \
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if (DI_GUIDIsSame(&pei->guid, &(e)))   \
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   haptic->supported |= (s)
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static BOOL CALLBACK
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DI_EffectCallback(LPCDIEFFECTINFO pei, LPVOID pv)
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{
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    /* Prepare the haptic device. */
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    SDL_Haptic *haptic = (SDL_Haptic *) pv;
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    /* Get supported. */
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    EFFECT_TEST(GUID_Spring, SDL_HAPTIC_SPRING);
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    EFFECT_TEST(GUID_Damper, SDL_HAPTIC_DAMPER);
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    EFFECT_TEST(GUID_Inertia, SDL_HAPTIC_INERTIA);
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    EFFECT_TEST(GUID_Friction, SDL_HAPTIC_FRICTION);
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    EFFECT_TEST(GUID_ConstantForce, SDL_HAPTIC_CONSTANT);
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    EFFECT_TEST(GUID_CustomForce, SDL_HAPTIC_CUSTOM);
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    EFFECT_TEST(GUID_Sine, SDL_HAPTIC_SINE);
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    EFFECT_TEST(GUID_Square, SDL_HAPTIC_SQUARE);
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    EFFECT_TEST(GUID_Triangle, SDL_HAPTIC_TRIANGLE);
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    EFFECT_TEST(GUID_SawtoothUp, SDL_HAPTIC_SAWTOOTHUP);
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    EFFECT_TEST(GUID_SawtoothDown, SDL_HAPTIC_SAWTOOTHDOWN);
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    EFFECT_TEST(GUID_RampForce, SDL_HAPTIC_RAMP);
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    /* Check for more. */
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    return DIENUM_CONTINUE;
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}
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   278
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   279
/*
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 * Callback to get supported axes.
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   281
 */
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static BOOL CALLBACK
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DI_DeviceObjectCallback(LPCDIDEVICEOBJECTINSTANCE dev, LPVOID pvRef)
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{
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   285
    SDL_Haptic *haptic = (SDL_Haptic *) pvRef;
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   286
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    if ((dev->dwType & DIDFT_AXIS) && (dev->dwFlags & DIDOI_FFACTUATOR)) {
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   288
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   289
        haptic->hwdata->axes[haptic->naxes] = dev->dwOfs;
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   290
        haptic->naxes++;
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   292
        /* Currently using the artificial limit of 3 axes. */
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   293
        if (haptic->naxes >= 3) {
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            return DIENUM_STOP;
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   295
        }
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   296
    }
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   297
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   298
    return DIENUM_CONTINUE;
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   299
}
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   300
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   301
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   302
/*
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   303
 * Opens the haptic device from the file descriptor.
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 *
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   305
 *    Steps:
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   306
 *       - Open temporary DirectInputDevice interface.
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   307
 *       - Create DirectInputDevice2 interface.
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 *       - Release DirectInputDevice interface.
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 *       - Call SDL_SYS_HapticOpenFromDevice2
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 */
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   311
static int
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SDL_SYS_HapticOpenFromInstance(SDL_Haptic * haptic, DIDEVICEINSTANCE instance)
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   313
{
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   314
    HRESULT ret;
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   315
    int ret2;
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   316
    LPDIRECTINPUTDEVICE device;
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   317
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   318
    /* Allocate the hwdata */
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   319
    haptic->hwdata = (struct haptic_hwdata *)
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   320
        SDL_malloc(sizeof(*haptic->hwdata));
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   321
    if (haptic->hwdata == NULL) {
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   322
        SDL_OutOfMemory();
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   323
        goto creat_err;
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   324
    }
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   325
    SDL_memset(haptic->hwdata, 0, sizeof(*haptic->hwdata));
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   326
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   327
    /* Open the device */
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    ret = IDirectInput_CreateDevice(dinput, &instance.guidInstance,
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                                    &device, NULL);
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   330
    if (FAILED(ret)) {
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   331
        DI_SetError("Creating DirectInput device", ret);
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   332
        goto creat_err;
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   333
    }
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   334
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   335
    /* Now get the IDirectInputDevice2 interface, instead. */
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   336
    ret = IDirectInputDevice_QueryInterface(device,
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   337
                                            &IID_IDirectInputDevice2,
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   338
                                            (LPVOID *) & haptic->hwdata->
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   339
                                            device);
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   340
    /* Done with the temporary one now. */
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   341
    IDirectInputDevice_Release(device);
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   342
    if (FAILED(ret)) {
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   343
        DI_SetError("Querying DirectInput interface", ret);
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   344
        goto creat_err;
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   345
    }
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   346
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   347
    ret2 = SDL_SYS_HapticOpenFromDevice2(haptic, haptic->hwdata->device);
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   348
    if (ret2 < 0) {
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   349
        goto query_err;
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   350
    }
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   351
slouken@2713
   352
    return 0;
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   353
slouken@2713
   354
  query_err:
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   355
    IDirectInputDevice2_Release(haptic->hwdata->device);
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   356
  creat_err:
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   357
    if (haptic->hwdata != NULL) {
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   358
        SDL_free(haptic->hwdata);
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   359
        haptic->hwdata = NULL;
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   360
    }
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   361
    return -1;
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   362
}
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   363
slouken@2713
   364
slouken@2713
   365
/*
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   366
 * Opens the haptic device from the file descriptor.
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   367
 *
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   368
 *    Steps:
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   369
 *       - Set cooperative level.
slouken@2713
   370
 *       - Set data format.
slouken@2713
   371
 *       - Acquire exclusiveness.
slouken@2713
   372
 *       - Reset actuators.
slouken@2713
   373
 *       - Get supported featuers.
slouken@2713
   374
 */
slouken@2713
   375
static int
slouken@2713
   376
SDL_SYS_HapticOpenFromDevice2(SDL_Haptic * haptic,
slouken@2713
   377
                              LPDIRECTINPUTDEVICE2 device2)
slouken@2713
   378
{
slouken@2713
   379
    HRESULT ret;
slouken@2713
   380
    DIPROPDWORD dipdw;
slouken@2713
   381
slouken@2713
   382
    /* We'll use the device2 from now on. */
slouken@2713
   383
    haptic->hwdata->device = device2;
slouken@2713
   384
slouken@2713
   385
    /* Grab it exclusively to use force feedback stuff. */
slouken@2713
   386
    ret = IDirectInputDevice2_SetCooperativeLevel(haptic->hwdata->device,
slouken@2713
   387
                                                  SDL_HelperWindow,
slouken@2713
   388
                                                  DISCL_EXCLUSIVE |
slouken@2713
   389
                                                  DISCL_BACKGROUND);
slouken@2713
   390
    if (FAILED(ret)) {
slouken@2713
   391
        DI_SetError("Setting cooperative level to exclusive", ret);
slouken@2713
   392
        goto acquire_err;
slouken@2713
   393
    }
slouken@2713
   394
slouken@2713
   395
    /* Set data format. */
slouken@2713
   396
    ret = IDirectInputDevice2_SetDataFormat(haptic->hwdata->device,
slouken@2713
   397
                                            &c_dfDIJoystick2);
slouken@2713
   398
    if (FAILED(ret)) {
slouken@2713
   399
        DI_SetError("Setting data format", ret);
slouken@2713
   400
        goto acquire_err;
slouken@2713
   401
    }
slouken@2713
   402
slouken@2713
   403
    /* Get number of axes. */
slouken@2713
   404
    ret = IDirectInputDevice2_EnumObjects(haptic->hwdata->device,
slouken@2713
   405
                                          DI_DeviceObjectCallback,
slouken@2713
   406
                                          haptic, DIDFT_AXIS);
slouken@2713
   407
    if (FAILED(ret)) {
slouken@2713
   408
        DI_SetError("Getting device axes", ret);
slouken@2713
   409
        goto acquire_err;
slouken@2713
   410
    }
slouken@2713
   411
slouken@2713
   412
    /* Acquire the device. */
slouken@2713
   413
    ret = IDirectInputDevice2_Acquire(haptic->hwdata->device);
slouken@2713
   414
    if (FAILED(ret)) {
slouken@2713
   415
        DI_SetError("Acquiring DirectInput device", ret);
slouken@2713
   416
        goto acquire_err;
slouken@2713
   417
    }
slouken@2713
   418
slouken@2713
   419
    /* Reset all actuators - just in case. */
slouken@2713
   420
    ret = IDirectInputDevice2_SendForceFeedbackCommand(haptic->hwdata->device,
slouken@2713
   421
                                                       DISFFC_RESET);
slouken@2713
   422
    if (FAILED(ret)) {
slouken@2713
   423
        DI_SetError("Resetting device", ret);
slouken@2713
   424
        goto acquire_err;
slouken@2713
   425
    }
slouken@2713
   426
slouken@2713
   427
    /* Enabling actuators. */
slouken@2713
   428
    ret = IDirectInputDevice2_SendForceFeedbackCommand(haptic->hwdata->device,
slouken@2713
   429
                                                       DISFFC_SETACTUATORSON);
slouken@2713
   430
    if (FAILED(ret)) {
slouken@2713
   431
        DI_SetError("Enabling actuators", ret);
slouken@2713
   432
        goto acquire_err;
slouken@2713
   433
    }
slouken@2713
   434
slouken@2713
   435
    /* Get supported effects. */
slouken@2713
   436
    ret = IDirectInputDevice2_EnumEffects(haptic->hwdata->device,
slouken@2713
   437
                                          DI_EffectCallback, haptic,
slouken@2713
   438
                                          DIEFT_ALL);
slouken@2713
   439
    if (FAILED(ret)) {
slouken@2713
   440
        DI_SetError("Enumerating supported effects", ret);
slouken@2713
   441
        goto acquire_err;
slouken@2713
   442
    }
slouken@2713
   443
    if (haptic->supported == 0) {       /* Error since device supports nothing. */
slouken@2713
   444
        SDL_SetError("Haptic: Internal error on finding supported effects.");
slouken@2713
   445
        goto acquire_err;
slouken@2713
   446
    }
slouken@2713
   447
slouken@2713
   448
    /* Check autogain and autocenter. */
slouken@2713
   449
    dipdw.diph.dwSize = sizeof(DIPROPDWORD);
slouken@2713
   450
    dipdw.diph.dwHeaderSize = sizeof(DIPROPHEADER);
slouken@2713
   451
    dipdw.diph.dwObj = 0;
slouken@2713
   452
    dipdw.diph.dwHow = DIPH_DEVICE;
slouken@2713
   453
    dipdw.dwData = 10000;
slouken@2713
   454
    ret = IDirectInputDevice2_SetProperty(haptic->hwdata->device,
slouken@2713
   455
                                          DIPROP_FFGAIN, &dipdw.diph);
slouken@2713
   456
    if (!FAILED(ret)) {         /* Gain is supported. */
slouken@2713
   457
        haptic->supported |= SDL_HAPTIC_GAIN;
slouken@2713
   458
    }
slouken@2713
   459
    dipdw.diph.dwObj = 0;
slouken@2713
   460
    dipdw.diph.dwHow = DIPH_DEVICE;
slouken@2713
   461
    dipdw.dwData = DIPROPAUTOCENTER_OFF;
slouken@2713
   462
    ret = IDirectInputDevice2_SetProperty(haptic->hwdata->device,
slouken@2713
   463
                                          DIPROP_AUTOCENTER, &dipdw.diph);
slouken@2713
   464
    if (!FAILED(ret)) {         /* Autocenter is supported. */
slouken@2713
   465
        haptic->supported |= SDL_HAPTIC_AUTOCENTER;
slouken@2713
   466
    }
slouken@2713
   467
slouken@2713
   468
    /* Status is always supported. */
slouken@2713
   469
    haptic->supported |= SDL_HAPTIC_STATUS | SDL_HAPTIC_PAUSE;
slouken@2713
   470
slouken@2713
   471
    /* Check maximum effects. */
slouken@2713
   472
    haptic->neffects = 128;     /* This is not actually supported as thus under windows,
slouken@2713
   473
                                   there is no way to tell the number of EFFECTS that a
slouken@2713
   474
                                   device can hold, so we'll just use a "random" number
slouken@2713
   475
                                   instead and put warnings in SDL_haptic.h */
slouken@2713
   476
    haptic->nplaying = 128;     /* Even more impossible to get this then neffects. */
slouken@2713
   477
slouken@2713
   478
    /* Prepare effects memory. */
slouken@2713
   479
    haptic->effects = (struct haptic_effect *)
slouken@2713
   480
        SDL_malloc(sizeof(struct haptic_effect) * haptic->neffects);
slouken@2713
   481
    if (haptic->effects == NULL) {
slouken@2713
   482
        SDL_OutOfMemory();
slouken@2713
   483
        goto acquire_err;
slouken@2713
   484
    }
slouken@2713
   485
    /* Clear the memory */
slouken@2713
   486
    SDL_memset(haptic->effects, 0,
slouken@2713
   487
               sizeof(struct haptic_effect) * haptic->neffects);
slouken@2713
   488
slouken@2713
   489
    return 0;
slouken@2713
   490
slouken@2713
   491
    /* Error handling */
slouken@2713
   492
  acquire_err:
slouken@2713
   493
    IDirectInputDevice2_Unacquire(haptic->hwdata->device);
slouken@2713
   494
    return -1;
slouken@2713
   495
slouken@2713
   496
}
slouken@2713
   497
slouken@2713
   498
slouken@2713
   499
/*
slouken@2713
   500
 * Opens a haptic device for usage.
slouken@2713
   501
 */
slouken@2713
   502
int
slouken@2713
   503
SDL_SYS_HapticOpen(SDL_Haptic * haptic)
slouken@2713
   504
{
slouken@2713
   505
    return SDL_SYS_HapticOpenFromInstance(haptic,
slouken@3013
   506
                                          SDL_hapticlist[haptic->index].
slouken@3013
   507
                                          instance);
slouken@2713
   508
}
slouken@2713
   509
slouken@2713
   510
slouken@2713
   511
/*
slouken@2713
   512
 * Opens a haptic device from first mouse it finds for usage.
slouken@2713
   513
 */
slouken@2713
   514
int
slouken@2713
   515
SDL_SYS_HapticMouse(void)
slouken@2713
   516
{
slouken@2713
   517
    int i;
slouken@2713
   518
slouken@2713
   519
    /* Grab the first mouse haptic device we find. */
slouken@2713
   520
    for (i = 0; i < SDL_numhaptics; i++) {
slouken@2713
   521
        if (SDL_hapticlist[i].capabilities.dwDevType == DIDEVTYPE_MOUSE) {
slouken@2713
   522
            return i;
slouken@2713
   523
        }
slouken@2713
   524
    }
slouken@2713
   525
slouken@2713
   526
    return -1;
slouken@2713
   527
}
slouken@2713
   528
slouken@2713
   529
slouken@2713
   530
/*
slouken@2713
   531
 * Checks to see if a joystick has haptic features.
slouken@2713
   532
 */
slouken@2713
   533
int
slouken@2713
   534
SDL_SYS_JoystickIsHaptic(SDL_Joystick * joystick)
slouken@2713
   535
{
slouken@2713
   536
    if (joystick->hwdata->Capabilities.dwFlags & DIDC_FORCEFEEDBACK) {
slouken@2713
   537
        return SDL_TRUE;
slouken@2713
   538
    }
slouken@2713
   539
slouken@2713
   540
    return SDL_FALSE;
slouken@2713
   541
}
slouken@2713
   542
slouken@2713
   543
slouken@2713
   544
/*
slouken@2713
   545
 * Checks to see if the haptic device and joystick and in reality the same.
slouken@2713
   546
 */
slouken@2713
   547
int
slouken@2713
   548
SDL_SYS_JoystickSameHaptic(SDL_Haptic * haptic, SDL_Joystick * joystick)
slouken@2713
   549
{
slouken@2713
   550
    HRESULT ret;
slouken@2713
   551
    DIDEVICEINSTANCE hap_instance, joy_instance;
slouken@5539
   552
    hap_instance.dwSize = sizeof(DIDEVICEINSTANCE);
slouken@5539
   553
    joy_instance.dwSize = sizeof(DIDEVICEINSTANCE);
slouken@2713
   554
slouken@2713
   555
    /* Get the device instances. */
slouken@2713
   556
    ret = IDirectInputDevice2_GetDeviceInfo(haptic->hwdata->device,
slouken@2713
   557
                                            &hap_instance);
slouken@2713
   558
    if (FAILED(ret)) {
slouken@2713
   559
        return 0;
slouken@2713
   560
    }
slouken@2713
   561
    ret = IDirectInputDevice2_GetDeviceInfo(joystick->hwdata->InputDevice,
slouken@2713
   562
                                            &joy_instance);
slouken@2713
   563
    if (FAILED(ret)) {
slouken@2713
   564
        return 0;
slouken@2713
   565
    }
slouken@2713
   566
slouken@2713
   567
    if (DI_GUIDIsSame(&hap_instance.guidInstance, &joy_instance.guidInstance))
slouken@2713
   568
        return 1;
slouken@2713
   569
slouken@2713
   570
    return 0;
slouken@2713
   571
}
slouken@2713
   572
slouken@2713
   573
slouken@2713
   574
/*
slouken@2713
   575
 * Opens a SDL_Haptic from a SDL_Joystick.
slouken@2713
   576
 */
slouken@2713
   577
int
slouken@2713
   578
SDL_SYS_HapticOpenFromJoystick(SDL_Haptic * haptic, SDL_Joystick * joystick)
slouken@2713
   579
{
slouken@5358
   580
    int i, ret;
slouken@5358
   581
    HRESULT idret;
slouken@5358
   582
    DIDEVICEINSTANCE joy_instance;
slouken@5539
   583
    joy_instance.dwSize = sizeof(DIDEVICEINSTANCE);
slouken@5358
   584
slouken@5358
   585
    /* Since it comes from a joystick we have to try to match it with a haptic device on our haptic list. */
slouken@5358
   586
    for (i=0; i<SDL_numhaptics; i++) {
slouken@5358
   587
        idret = IDirectInputDevice2_GetDeviceInfo(joystick->hwdata->InputDevice,
slouken@5358
   588
              &joy_instance);
slouken@5358
   589
        if (FAILED(idret)) {
slouken@5358
   590
            return -1;
slouken@5358
   591
        }
slouken@5358
   592
        if (DI_GUIDIsSame(&SDL_hapticlist[i].instance.guidInstance,
slouken@5358
   593
                          &joy_instance.guidInstance)) {
slouken@5358
   594
            haptic->index = i;
slouken@5358
   595
            break;
slouken@5358
   596
        }
slouken@5358
   597
    }
slouken@5358
   598
    if (i >= SDL_numhaptics) {
slouken@5358
   599
        return -1;
slouken@5358
   600
    }
slouken@2713
   601
slouken@2713
   602
    /* Allocate the hwdata */
slouken@2713
   603
    haptic->hwdata = (struct haptic_hwdata *)
slouken@2713
   604
        SDL_malloc(sizeof(*haptic->hwdata));
slouken@2713
   605
    if (haptic->hwdata == NULL) {
slouken@2713
   606
        SDL_OutOfMemory();
slouken@2713
   607
        return -1;
slouken@2713
   608
    }
slouken@2713
   609
    SDL_memset(haptic->hwdata, 0, sizeof(*haptic->hwdata));
slouken@2713
   610
slouken@2713
   611
    /* Now open the device. */
slouken@2713
   612
    ret =
slouken@2713
   613
        SDL_SYS_HapticOpenFromDevice2(haptic, joystick->hwdata->InputDevice);
slouken@2713
   614
    if (ret < 0) {
slouken@2713
   615
        return -1;
slouken@2713
   616
    }
slouken@2713
   617
slouken@2713
   618
    /* It's using the joystick device. */
slouken@2713
   619
    haptic->hwdata->is_joystick = 1;
slouken@2713
   620
slouken@2713
   621
    return 0;
slouken@2713
   622
}
slouken@2713
   623
slouken@2713
   624
slouken@2713
   625
/*
slouken@2713
   626
 * Closes the haptic device.
slouken@2713
   627
 */
slouken@2713
   628
void
slouken@2713
   629
SDL_SYS_HapticClose(SDL_Haptic * haptic)
slouken@2713
   630
{
slouken@2713
   631
    if (haptic->hwdata) {
slouken@2713
   632
slouken@2713
   633
        /* Free effects. */
slouken@2713
   634
        SDL_free(haptic->effects);
slouken@2713
   635
        haptic->effects = NULL;
slouken@2713
   636
        haptic->neffects = 0;
slouken@2713
   637
slouken@2713
   638
        /* Clean up */
slouken@2713
   639
        IDirectInputDevice2_Unacquire(haptic->hwdata->device);
slouken@2713
   640
        /* Only release if isn't grabbed by a joystick. */
slouken@2713
   641
        if (haptic->hwdata->is_joystick == 0) {
slouken@2713
   642
            IDirectInputDevice2_Release(haptic->hwdata->device);
slouken@2713
   643
        }
slouken@2713
   644
slouken@2713
   645
        /* Free */
slouken@2713
   646
        SDL_free(haptic->hwdata);
slouken@2713
   647
        haptic->hwdata = NULL;
slouken@2713
   648
    }
slouken@2713
   649
}
slouken@2713
   650
slouken@2713
   651
slouken@2713
   652
/* 
slouken@2713
   653
 * Clean up after system specific haptic stuff
slouken@2713
   654
 */
slouken@2713
   655
void
slouken@2713
   656
SDL_SYS_HapticQuit(void)
slouken@2713
   657
{
slouken@5090
   658
    int i;
slouken@5090
   659
slouken@5090
   660
    for (i = 0; i < SDL_arraysize(SDL_hapticlist); ++i) {
slouken@5090
   661
        if (SDL_hapticlist[i].name) {
slouken@5090
   662
            SDL_free(SDL_hapticlist[i].name);
slouken@5090
   663
            SDL_hapticlist[i].name = NULL;
slouken@5090
   664
        }
slouken@5090
   665
    }
slouken@5090
   666
slouken@2713
   667
    IDirectInput_Release(dinput);
slouken@2713
   668
    dinput = NULL;
slouken@2713
   669
}
slouken@2713
   670
slouken@2713
   671
slouken@2713
   672
/*
slouken@2713
   673
 * Converts an SDL trigger button to an DIEFFECT trigger button.
slouken@2713
   674
 */
slouken@2713
   675
static DWORD
slouken@2713
   676
DIGetTriggerButton(Uint16 button)
slouken@2713
   677
{
slouken@2713
   678
    DWORD dwTriggerButton;
slouken@2713
   679
slouken@2713
   680
    dwTriggerButton = DIEB_NOTRIGGER;
slouken@2713
   681
slouken@2713
   682
    if (button != 0) {
slouken@2713
   683
        dwTriggerButton = DIJOFS_BUTTON(button - 1);
slouken@2713
   684
    }
slouken@2713
   685
slouken@2713
   686
    return dwTriggerButton;
slouken@2713
   687
}
slouken@2713
   688
slouken@2713
   689
slouken@2713
   690
/*
slouken@2713
   691
 * Sets the direction.
slouken@2713
   692
 */
slouken@2713
   693
static int
slouken@2713
   694
SDL_SYS_SetDirection(DIEFFECT * effect, SDL_HapticDirection * dir, int naxes)
slouken@2713
   695
{
slouken@2713
   696
    LONG *rglDir;
slouken@2713
   697
slouken@2713
   698
    /* Handle no axes a part. */
slouken@2713
   699
    if (naxes == 0) {
slouken@2713
   700
        effect->dwFlags |= DIEFF_SPHERICAL;     /* Set as default. */
slouken@2713
   701
        effect->rglDirection = NULL;
slouken@2713
   702
        return 0;
slouken@2713
   703
    }
slouken@2713
   704
slouken@2713
   705
    /* Has axes. */
slouken@2713
   706
    rglDir = SDL_malloc(sizeof(LONG) * naxes);
slouken@2713
   707
    if (rglDir == NULL) {
slouken@2713
   708
        SDL_OutOfMemory();
slouken@2713
   709
        return -1;
slouken@2713
   710
    }
slouken@2713
   711
    SDL_memset(rglDir, 0, sizeof(LONG) * naxes);
slouken@2713
   712
    effect->rglDirection = rglDir;
slouken@2713
   713
slouken@2713
   714
    switch (dir->type) {
slouken@2713
   715
    case SDL_HAPTIC_POLAR:
slouken@2713
   716
        effect->dwFlags |= DIEFF_POLAR;
slouken@2713
   717
        rglDir[0] = dir->dir[0];
slouken@2713
   718
        return 0;
slouken@2713
   719
    case SDL_HAPTIC_CARTESIAN:
slouken@2713
   720
        effect->dwFlags |= DIEFF_CARTESIAN;
slouken@2713
   721
        rglDir[0] = dir->dir[0];
slouken@2713
   722
        if (naxes > 1)
slouken@2713
   723
            rglDir[1] = dir->dir[1];
slouken@2713
   724
        if (naxes > 2)
slouken@2713
   725
            rglDir[2] = dir->dir[2];
slouken@2713
   726
        return 0;
slouken@2713
   727
    case SDL_HAPTIC_SPHERICAL:
slouken@2713
   728
        effect->dwFlags |= DIEFF_SPHERICAL;
slouken@2713
   729
        rglDir[0] = dir->dir[0];
slouken@2713
   730
        if (naxes > 1)
slouken@2713
   731
            rglDir[1] = dir->dir[1];
slouken@2713
   732
        if (naxes > 2)
slouken@2713
   733
            rglDir[2] = dir->dir[2];
slouken@2713
   734
        return 0;
slouken@2713
   735
slouken@2713
   736
    default:
slouken@2713
   737
        SDL_SetError("Haptic: Unknown direction type.");
slouken@2713
   738
        return -1;
slouken@2713
   739
    }
slouken@2713
   740
}
slouken@2713
   741
slouken@2713
   742
#define CONVERT(x)   (((x) > 0x7FFF) ? 10000 : ((x)*10000) / 0x7FFF)
slouken@2713
   743
/*
slouken@2713
   744
 * Creates the DIEFFECT from a SDL_HapticEffect.
slouken@2713
   745
 */
slouken@2713
   746
static int
slouken@2713
   747
SDL_SYS_ToDIEFFECT(SDL_Haptic * haptic, DIEFFECT * dest,
slouken@2713
   748
                   SDL_HapticEffect * src)
slouken@2713
   749
{
slouken@2713
   750
    int i;
slouken@2713
   751
    DICONSTANTFORCE *constant;
slouken@2713
   752
    DIPERIODIC *periodic;
slouken@2713
   753
    DICONDITION *condition;     /* Actually an array of conditions - one per axis. */
slouken@2713
   754
    DIRAMPFORCE *ramp;
slouken@2713
   755
    DICUSTOMFORCE *custom;
slouken@2713
   756
    DIENVELOPE *envelope;
slouken@2713
   757
    SDL_HapticConstant *hap_constant;
slouken@2713
   758
    SDL_HapticPeriodic *hap_periodic;
slouken@2713
   759
    SDL_HapticCondition *hap_condition;
slouken@2713
   760
    SDL_HapticRamp *hap_ramp;
slouken@2713
   761
    SDL_HapticCustom *hap_custom;
slouken@2713
   762
    DWORD *axes;
slouken@2713
   763
slouken@2713
   764
    /* Set global stuff. */
slouken@2713
   765
    SDL_memset(dest, 0, sizeof(DIEFFECT));
slouken@2713
   766
    dest->dwSize = sizeof(DIEFFECT);    /* Set the structure size. */
slouken@2713
   767
    dest->dwSamplePeriod = 0;   /* Not used by us. */
slouken@2713
   768
    dest->dwGain = 10000;       /* Gain is set globally, not locally. */
slouken@2713
   769
    dest->dwFlags = DIEFF_OBJECTOFFSETS;        /* Seems obligatory. */
slouken@2713
   770
slouken@2713
   771
    /* Envelope. */
slouken@2713
   772
    envelope = SDL_malloc(sizeof(DIENVELOPE));
slouken@2713
   773
    if (envelope == NULL) {
slouken@2713
   774
        SDL_OutOfMemory();
slouken@2713
   775
        return -1;
slouken@2713
   776
    }
slouken@2713
   777
    SDL_memset(envelope, 0, sizeof(DIENVELOPE));
slouken@2713
   778
    dest->lpEnvelope = envelope;
slouken@2713
   779
    envelope->dwSize = sizeof(DIENVELOPE);      /* Always should be this. */
slouken@2713
   780
slouken@2713
   781
    /* Axes. */
slouken@2713
   782
    dest->cAxes = haptic->naxes;
slouken@2713
   783
    if (dest->cAxes > 0) {
slouken@2713
   784
        axes = SDL_malloc(sizeof(DWORD) * dest->cAxes);
slouken@2713
   785
        if (axes == NULL) {
slouken@2713
   786
            SDL_OutOfMemory();
slouken@2713
   787
            return -1;
slouken@2713
   788
        }
slouken@2713
   789
        axes[0] = haptic->hwdata->axes[0];      /* Always at least one axis. */
slouken@2713
   790
        if (dest->cAxes > 1) {
slouken@2713
   791
            axes[1] = haptic->hwdata->axes[1];
slouken@2713
   792
        }
slouken@2713
   793
        if (dest->cAxes > 2) {
slouken@2713
   794
            axes[2] = haptic->hwdata->axes[2];
slouken@2713
   795
        }
slouken@2713
   796
        dest->rgdwAxes = axes;
slouken@2713
   797
    }
slouken@2713
   798
slouken@2713
   799
slouken@2713
   800
    /* The big type handling switch, even bigger then linux's version. */
slouken@2713
   801
    switch (src->type) {
slouken@2713
   802
    case SDL_HAPTIC_CONSTANT:
slouken@2713
   803
        hap_constant = &src->constant;
slouken@2713
   804
        constant = SDL_malloc(sizeof(DICONSTANTFORCE));
slouken@2713
   805
        if (constant == NULL) {
slouken@2713
   806
            SDL_OutOfMemory();
slouken@2713
   807
            return -1;
slouken@2713
   808
        }
slouken@2713
   809
        SDL_memset(constant, 0, sizeof(DICONSTANTFORCE));
slouken@2713
   810
slouken@2713
   811
        /* Specifics */
slouken@2713
   812
        constant->lMagnitude = CONVERT(hap_constant->level);
slouken@2713
   813
        dest->cbTypeSpecificParams = sizeof(DICONSTANTFORCE);
slouken@2713
   814
        dest->lpvTypeSpecificParams = constant;
slouken@2713
   815
slouken@2713
   816
        /* Generics */
slouken@2713
   817
        dest->dwDuration = hap_constant->length * 1000; /* In microseconds. */
slouken@2713
   818
        dest->dwTriggerButton = DIGetTriggerButton(hap_constant->button);
slouken@2713
   819
        dest->dwTriggerRepeatInterval = hap_constant->interval;
slouken@2713
   820
        dest->dwStartDelay = hap_constant->delay * 1000;        /* In microseconds. */
slouken@2713
   821
slouken@2713
   822
        /* Direction. */
slouken@2713
   823
        if (SDL_SYS_SetDirection(dest, &hap_constant->direction, dest->cAxes)
slouken@2713
   824
            < 0) {
slouken@2713
   825
            return -1;
slouken@2713
   826
        }
slouken@2713
   827
slouken@2713
   828
        /* Envelope */
slouken@2713
   829
        if ((hap_constant->attack_length == 0)
slouken@2713
   830
            && (hap_constant->fade_length == 0)) {
slouken@2713
   831
            SDL_free(dest->lpEnvelope);
slouken@2713
   832
            dest->lpEnvelope = NULL;
slouken@2713
   833
        } else {
slouken@2713
   834
            envelope->dwAttackLevel = CONVERT(hap_constant->attack_level);
slouken@2713
   835
            envelope->dwAttackTime = hap_constant->attack_length * 1000;
slouken@2713
   836
            envelope->dwFadeLevel = CONVERT(hap_constant->fade_level);
slouken@2713
   837
            envelope->dwFadeTime = hap_constant->fade_length * 1000;
slouken@2713
   838
        }
slouken@2713
   839
slouken@2713
   840
        break;
slouken@2713
   841
slouken@2713
   842
    case SDL_HAPTIC_SINE:
slouken@2713
   843
    case SDL_HAPTIC_SQUARE:
slouken@2713
   844
    case SDL_HAPTIC_TRIANGLE:
slouken@2713
   845
    case SDL_HAPTIC_SAWTOOTHUP:
slouken@2713
   846
    case SDL_HAPTIC_SAWTOOTHDOWN:
slouken@2713
   847
        hap_periodic = &src->periodic;
slouken@2713
   848
        periodic = SDL_malloc(sizeof(DIPERIODIC));
slouken@2713
   849
        if (periodic == NULL) {
slouken@2713
   850
            SDL_OutOfMemory();
slouken@2713
   851
            return -1;
slouken@2713
   852
        }
slouken@2713
   853
        SDL_memset(periodic, 0, sizeof(DIPERIODIC));
slouken@2713
   854
slouken@2713
   855
        /* Specifics */
slouken@2713
   856
        periodic->dwMagnitude = CONVERT(hap_periodic->magnitude);
slouken@2713
   857
        periodic->lOffset = CONVERT(hap_periodic->offset);
slouken@2713
   858
        periodic->dwPhase = hap_periodic->phase;
slouken@2713
   859
        periodic->dwPeriod = hap_periodic->period * 1000;
slouken@2713
   860
        dest->cbTypeSpecificParams = sizeof(DIPERIODIC);
slouken@2713
   861
        dest->lpvTypeSpecificParams = periodic;
slouken@2713
   862
slouken@2713
   863
        /* Generics */
slouken@2713
   864
        dest->dwDuration = hap_periodic->length * 1000; /* In microseconds. */
slouken@2713
   865
        dest->dwTriggerButton = DIGetTriggerButton(hap_periodic->button);
slouken@2713
   866
        dest->dwTriggerRepeatInterval = hap_periodic->interval;
slouken@2713
   867
        dest->dwStartDelay = hap_periodic->delay * 1000;        /* In microseconds. */
slouken@2713
   868
slouken@2713
   869
        /* Direction. */
slouken@2713
   870
        if (SDL_SYS_SetDirection(dest, &hap_periodic->direction, dest->cAxes)
slouken@2713
   871
            < 0) {
slouken@2713
   872
            return -1;
slouken@2713
   873
        }
slouken@2713
   874
slouken@2713
   875
        /* Envelope */
slouken@2713
   876
        if ((hap_periodic->attack_length == 0)
slouken@2713
   877
            && (hap_periodic->fade_length == 0)) {
slouken@2713
   878
            SDL_free(dest->lpEnvelope);
slouken@2713
   879
            dest->lpEnvelope = NULL;
slouken@2713
   880
        } else {
slouken@2713
   881
            envelope->dwAttackLevel = CONVERT(hap_periodic->attack_level);
slouken@2713
   882
            envelope->dwAttackTime = hap_periodic->attack_length * 1000;
slouken@2713
   883
            envelope->dwFadeLevel = CONVERT(hap_periodic->fade_level);
slouken@2713
   884
            envelope->dwFadeTime = hap_periodic->fade_length * 1000;
slouken@2713
   885
        }
slouken@2713
   886
slouken@2713
   887
        break;
slouken@2713
   888
slouken@2713
   889
    case SDL_HAPTIC_SPRING:
slouken@2713
   890
    case SDL_HAPTIC_DAMPER:
slouken@2713
   891
    case SDL_HAPTIC_INERTIA:
slouken@2713
   892
    case SDL_HAPTIC_FRICTION:
slouken@2713
   893
        hap_condition = &src->condition;
slouken@2713
   894
        condition = SDL_malloc(sizeof(DICONDITION) * dest->cAxes);
slouken@2713
   895
        if (condition == NULL) {
slouken@2713
   896
            SDL_OutOfMemory();
slouken@2713
   897
            return -1;
slouken@2713
   898
        }
slouken@2713
   899
        SDL_memset(condition, 0, sizeof(DICONDITION));
slouken@2713
   900
slouken@2713
   901
        /* Specifics */
slouken@2713
   902
        for (i = 0; i < (int) dest->cAxes; i++) {
slouken@2713
   903
            condition[i].lOffset = CONVERT(hap_condition->center[i]);
slouken@2713
   904
            condition[i].lPositiveCoefficient =
slouken@2713
   905
                CONVERT(hap_condition->right_coeff[i]);
slouken@2713
   906
            condition[i].lNegativeCoefficient =
slouken@2713
   907
                CONVERT(hap_condition->left_coeff[i]);
slouken@2713
   908
            condition[i].dwPositiveSaturation =
slouken@2713
   909
                CONVERT(hap_condition->right_sat[i]);
slouken@2713
   910
            condition[i].dwNegativeSaturation =
slouken@2713
   911
                CONVERT(hap_condition->left_sat[i]);
slouken@2713
   912
            condition[i].lDeadBand = CONVERT(hap_condition->deadband[i]);
slouken@2713
   913
        }
slouken@2713
   914
        dest->cbTypeSpecificParams = sizeof(DICONDITION) * dest->cAxes;
slouken@2713
   915
        dest->lpvTypeSpecificParams = condition;
slouken@2713
   916
slouken@2713
   917
        /* Generics */
slouken@2713
   918
        dest->dwDuration = hap_condition->length * 1000;        /* In microseconds. */
slouken@2713
   919
        dest->dwTriggerButton = DIGetTriggerButton(hap_condition->button);
slouken@2713
   920
        dest->dwTriggerRepeatInterval = hap_condition->interval;
slouken@2713
   921
        dest->dwStartDelay = hap_condition->delay * 1000;       /* In microseconds. */
slouken@2713
   922
slouken@2713
   923
        /* Direction. */
slouken@2713
   924
        if (SDL_SYS_SetDirection(dest, &hap_condition->direction, dest->cAxes)
slouken@2713
   925
            < 0) {
slouken@2713
   926
            return -1;
slouken@2713
   927
        }
slouken@2713
   928
slouken@2713
   929
        /* Envelope - Not actually supported by most CONDITION implementations. */
slouken@2713
   930
        SDL_free(dest->lpEnvelope);
slouken@2713
   931
        dest->lpEnvelope = NULL;
slouken@2713
   932
slouken@2713
   933
        break;
slouken@2713
   934
slouken@2713
   935
    case SDL_HAPTIC_RAMP:
slouken@2713
   936
        hap_ramp = &src->ramp;
slouken@2713
   937
        ramp = SDL_malloc(sizeof(DIRAMPFORCE));
slouken@2713
   938
        if (ramp == NULL) {
slouken@2713
   939
            SDL_OutOfMemory();
slouken@2713
   940
            return -1;
slouken@2713
   941
        }
slouken@2713
   942
        SDL_memset(ramp, 0, sizeof(DIRAMPFORCE));
slouken@2713
   943
slouken@2713
   944
        /* Specifics */
slouken@2713
   945
        ramp->lStart = CONVERT(hap_ramp->start);
slouken@2713
   946
        ramp->lEnd = CONVERT(hap_ramp->end);
slouken@2713
   947
        dest->cbTypeSpecificParams = sizeof(DIRAMPFORCE);
slouken@2713
   948
        dest->lpvTypeSpecificParams = ramp;
slouken@2713
   949
slouken@2713
   950
        /* Generics */
slouken@2713
   951
        dest->dwDuration = hap_ramp->length * 1000;     /* In microseconds. */
slouken@2713
   952
        dest->dwTriggerButton = DIGetTriggerButton(hap_ramp->button);
slouken@2713
   953
        dest->dwTriggerRepeatInterval = hap_ramp->interval;
slouken@2713
   954
        dest->dwStartDelay = hap_ramp->delay * 1000;    /* In microseconds. */
slouken@2713
   955
slouken@2713
   956
        /* Direction. */
slouken@2713
   957
        if (SDL_SYS_SetDirection(dest, &hap_ramp->direction, dest->cAxes) < 0) {
slouken@2713
   958
            return -1;
slouken@2713
   959
        }
slouken@2713
   960
slouken@2713
   961
        /* Envelope */
slouken@2713
   962
        if ((hap_ramp->attack_length == 0) && (hap_ramp->fade_length == 0)) {
slouken@2713
   963
            SDL_free(dest->lpEnvelope);
slouken@2713
   964
            dest->lpEnvelope = NULL;
slouken@2713
   965
        } else {
slouken@2713
   966
            envelope->dwAttackLevel = CONVERT(hap_ramp->attack_level);
slouken@2713
   967
            envelope->dwAttackTime = hap_ramp->attack_length * 1000;
slouken@2713
   968
            envelope->dwFadeLevel = CONVERT(hap_ramp->fade_level);
slouken@2713
   969
            envelope->dwFadeTime = hap_ramp->fade_length * 1000;
slouken@2713
   970
        }
slouken@2713
   971
slouken@2713
   972
        break;
slouken@2713
   973
slouken@2713
   974
    case SDL_HAPTIC_CUSTOM:
slouken@2713
   975
        hap_custom = &src->custom;
slouken@2713
   976
        custom = SDL_malloc(sizeof(DICUSTOMFORCE));
slouken@2713
   977
        if (custom == NULL) {
slouken@2713
   978
            SDL_OutOfMemory();
slouken@2713
   979
            return -1;
slouken@2713
   980
        }
slouken@2713
   981
        SDL_memset(custom, 0, sizeof(DICUSTOMFORCE));
slouken@2713
   982
slouken@2713
   983
        /* Specifics */
slouken@2713
   984
        custom->cChannels = hap_custom->channels;
slouken@2713
   985
        custom->dwSamplePeriod = hap_custom->period * 1000;
slouken@2713
   986
        custom->cSamples = hap_custom->samples;
slouken@2713
   987
        custom->rglForceData =
slouken@2713
   988
            SDL_malloc(sizeof(LONG) * custom->cSamples * custom->cChannels);
slouken@2713
   989
        for (i = 0; i < hap_custom->samples * hap_custom->channels; i++) {      /* Copy data. */
slouken@2713
   990
            custom->rglForceData[i] = CONVERT(hap_custom->data[i]);
slouken@2713
   991
        }
slouken@2713
   992
        dest->cbTypeSpecificParams = sizeof(DICUSTOMFORCE);
slouken@2713
   993
        dest->lpvTypeSpecificParams = custom;
slouken@2713
   994
slouken@2713
   995
        /* Generics */
slouken@2713
   996
        dest->dwDuration = hap_custom->length * 1000;   /* In microseconds. */
slouken@2713
   997
        dest->dwTriggerButton = DIGetTriggerButton(hap_custom->button);
slouken@2713
   998
        dest->dwTriggerRepeatInterval = hap_custom->interval;
slouken@2713
   999
        dest->dwStartDelay = hap_custom->delay * 1000;  /* In microseconds. */
slouken@2713
  1000
slouken@2713
  1001
        /* Direction. */
slouken@2713
  1002
        if (SDL_SYS_SetDirection(dest, &hap_custom->direction, dest->cAxes) <
slouken@2713
  1003
            0) {
slouken@2713
  1004
            return -1;
slouken@2713
  1005
        }
slouken@2713
  1006
slouken@2713
  1007
        /* Envelope */
slouken@2713
  1008
        if ((hap_custom->attack_length == 0)
slouken@2713
  1009
            && (hap_custom->fade_length == 0)) {
slouken@2713
  1010
            SDL_free(dest->lpEnvelope);
slouken@2713
  1011
            dest->lpEnvelope = NULL;
slouken@2713
  1012
        } else {
slouken@2713
  1013
            envelope->dwAttackLevel = CONVERT(hap_custom->attack_level);
slouken@2713
  1014
            envelope->dwAttackTime = hap_custom->attack_length * 1000;
slouken@2713
  1015
            envelope->dwFadeLevel = CONVERT(hap_custom->fade_level);
slouken@2713
  1016
            envelope->dwFadeTime = hap_custom->fade_length * 1000;
slouken@2713
  1017
        }
slouken@2713
  1018
slouken@2713
  1019
        break;
slouken@2713
  1020
slouken@2713
  1021
slouken@2713
  1022
    default:
slouken@2713
  1023
        SDL_SetError("Haptic: Unknown effect type.");
slouken@2713
  1024
        return -1;
slouken@2713
  1025
    }
slouken@2713
  1026
slouken@2713
  1027
    return 0;
slouken@2713
  1028
}
slouken@2713
  1029
slouken@2713
  1030
slouken@2713
  1031
/*
slouken@2713
  1032
 * Frees an DIEFFECT allocated by SDL_SYS_ToDIEFFECT.
slouken@2713
  1033
 */
slouken@2713
  1034
static void
slouken@2713
  1035
SDL_SYS_HapticFreeDIEFFECT(DIEFFECT * effect, int type)
slouken@2713
  1036
{
slouken@2713
  1037
    DICUSTOMFORCE *custom;
slouken@2713
  1038
slouken@2713
  1039
    if (effect->lpEnvelope != NULL) {
slouken@2713
  1040
        SDL_free(effect->lpEnvelope);
slouken@2713
  1041
        effect->lpEnvelope = NULL;
slouken@2713
  1042
    }
slouken@2713
  1043
    if (effect->rgdwAxes != NULL) {
slouken@2713
  1044
        SDL_free(effect->rgdwAxes);
slouken@2713
  1045
        effect->rgdwAxes = NULL;
slouken@2713
  1046
    }
slouken@2713
  1047
    if (effect->lpvTypeSpecificParams != NULL) {
slouken@2713
  1048
        if (type == SDL_HAPTIC_CUSTOM) {        /* Must free the custom data. */
slouken@2713
  1049
            custom = (DICUSTOMFORCE *) effect->lpvTypeSpecificParams;
slouken@2713
  1050
            SDL_free(custom->rglForceData);
slouken@2713
  1051
            custom->rglForceData = NULL;
slouken@2713
  1052
        }
slouken@2713
  1053
        SDL_free(effect->lpvTypeSpecificParams);
slouken@2713
  1054
        effect->lpvTypeSpecificParams = NULL;
slouken@2713
  1055
    }
slouken@2713
  1056
    if (effect->rglDirection != NULL) {
slouken@2713
  1057
        SDL_free(effect->rglDirection);
slouken@2713
  1058
        effect->rglDirection = NULL;
slouken@2713
  1059
    }
slouken@2713
  1060
}
slouken@2713
  1061
slouken@2713
  1062
slouken@2713
  1063
/*
slouken@2713
  1064
 * Gets the effect type from the generic SDL haptic effect wrapper.
slouken@2713
  1065
 */
slouken@2713
  1066
static REFGUID
slouken@2713
  1067
SDL_SYS_HapticEffectType(SDL_HapticEffect * effect)
slouken@2713
  1068
{
slouken@2713
  1069
    switch (effect->type) {
slouken@2713
  1070
    case SDL_HAPTIC_CONSTANT:
slouken@2713
  1071
        return &GUID_ConstantForce;
slouken@2713
  1072
slouken@2713
  1073
    case SDL_HAPTIC_RAMP:
slouken@2713
  1074
        return &GUID_RampForce;
slouken@2713
  1075
slouken@2713
  1076
    case SDL_HAPTIC_SQUARE:
slouken@2713
  1077
        return &GUID_Square;
slouken@2713
  1078
slouken@2713
  1079
    case SDL_HAPTIC_SINE:
slouken@2713
  1080
        return &GUID_Sine;
slouken@2713
  1081
slouken@2713
  1082
    case SDL_HAPTIC_TRIANGLE:
slouken@2713
  1083
        return &GUID_Triangle;
slouken@2713
  1084
slouken@2713
  1085
    case SDL_HAPTIC_SAWTOOTHUP:
slouken@2713
  1086
        return &GUID_SawtoothUp;
slouken@2713
  1087
slouken@2713
  1088
    case SDL_HAPTIC_SAWTOOTHDOWN:
slouken@2713
  1089
        return &GUID_SawtoothDown;
slouken@2713
  1090
slouken@2713
  1091
    case SDL_HAPTIC_SPRING:
slouken@2713
  1092
        return &GUID_Spring;
slouken@2713
  1093
slouken@2713
  1094
    case SDL_HAPTIC_DAMPER:
slouken@2713
  1095
        return &GUID_Damper;
slouken@2713
  1096
slouken@2713
  1097
    case SDL_HAPTIC_INERTIA:
slouken@2713
  1098
        return &GUID_Inertia;
slouken@2713
  1099
slouken@2713
  1100
    case SDL_HAPTIC_FRICTION:
slouken@2713
  1101
        return &GUID_Friction;
slouken@2713
  1102
slouken@2713
  1103
    case SDL_HAPTIC_CUSTOM:
slouken@2713
  1104
        return &GUID_CustomForce;
slouken@2713
  1105
slouken@2713
  1106
    default:
slouken@2713
  1107
        SDL_SetError("Haptic: Unknown effect type.");
slouken@2713
  1108
        return NULL;
slouken@2713
  1109
    }
slouken@2713
  1110
}
slouken@2713
  1111
slouken@2713
  1112
slouken@2713
  1113
/*
slouken@2713
  1114
 * Creates a new haptic effect.
slouken@2713
  1115
 */
slouken@2713
  1116
int
slouken@2713
  1117
SDL_SYS_HapticNewEffect(SDL_Haptic * haptic, struct haptic_effect *effect,
slouken@2713
  1118
                        SDL_HapticEffect * base)
slouken@2713
  1119
{
slouken@2713
  1120
    HRESULT ret;
slouken@2713
  1121
slouken@2713
  1122
    /* Get the type. */
slouken@2713
  1123
    REFGUID type = SDL_SYS_HapticEffectType(base);
slouken@2713
  1124
    if (type == NULL) {
slouken@2713
  1125
        goto err_hweffect;
slouken@2713
  1126
    }
slouken@2713
  1127
slouken@2713
  1128
    /* Alloc the effect. */
slouken@2713
  1129
    effect->hweffect = (struct haptic_hweffect *)
slouken@2713
  1130
        SDL_malloc(sizeof(struct haptic_hweffect));
slouken@2713
  1131
    if (effect->hweffect == NULL) {
slouken@2713
  1132
        SDL_OutOfMemory();
slouken@2713
  1133
        goto err_hweffect;
slouken@2713
  1134
    }
slouken@2713
  1135
slouken@2713
  1136
    /* Get the effect. */
slouken@2713
  1137
    if (SDL_SYS_ToDIEFFECT(haptic, &effect->hweffect->effect, base) < 0) {
slouken@2713
  1138
        goto err_effectdone;
slouken@2713
  1139
    }
slouken@2713
  1140
slouken@2713
  1141
    /* Create the actual effect. */
slouken@2713
  1142
    ret = IDirectInputDevice2_CreateEffect(haptic->hwdata->device, type,
slouken@2713
  1143
                                           &effect->hweffect->effect,
slouken@2713
  1144
                                           &effect->hweffect->ref, NULL);
slouken@2713
  1145
    if (FAILED(ret)) {
slouken@2713
  1146
        DI_SetError("Unable to create effect", ret);
slouken@2713
  1147
        goto err_effectdone;
slouken@2713
  1148
    }
slouken@2713
  1149
slouken@2713
  1150
    return 0;
slouken@2713
  1151
slouken@2713
  1152
  err_effectdone:
slouken@2713
  1153
    SDL_SYS_HapticFreeDIEFFECT(&effect->hweffect->effect, base->type);
slouken@2713
  1154
  err_hweffect:
slouken@2713
  1155
    if (effect->hweffect != NULL) {
slouken@2713
  1156
        SDL_free(effect->hweffect);
slouken@2713
  1157
        effect->hweffect = NULL;
slouken@2713
  1158
    }
slouken@2713
  1159
    return -1;
slouken@2713
  1160
}
slouken@2713
  1161
slouken@2713
  1162
slouken@2713
  1163
/*
slouken@2713
  1164
 * Updates an effect.
slouken@2713
  1165
 */
slouken@2713
  1166
int
slouken@2713
  1167
SDL_SYS_HapticUpdateEffect(SDL_Haptic * haptic,
slouken@2713
  1168
                           struct haptic_effect *effect,
slouken@2713
  1169
                           SDL_HapticEffect * data)
slouken@2713
  1170
{
slouken@2713
  1171
    HRESULT ret;
slouken@2713
  1172
    DWORD flags;
slouken@2713
  1173
    DIEFFECT temp;
slouken@2713
  1174
slouken@2713
  1175
    /* Get the effect. */
slouken@2713
  1176
    SDL_memset(&temp, 0, sizeof(DIEFFECT));
slouken@2713
  1177
    if (SDL_SYS_ToDIEFFECT(haptic, &temp, data) < 0) {
slouken@2713
  1178
        goto err_update;
slouken@2713
  1179
    }
slouken@2713
  1180
slouken@2713
  1181
    /* Set the flags.  Might be worthwhile to diff temp with loaded effect and
slouken@2713
  1182
     *  only change those parameters. */
slouken@2713
  1183
    flags = DIEP_DIRECTION |
slouken@2713
  1184
        DIEP_DURATION |
slouken@2713
  1185
        DIEP_ENVELOPE |
slouken@2713
  1186
        DIEP_STARTDELAY |
slouken@2713
  1187
        DIEP_TRIGGERBUTTON |
slouken@2713
  1188
        DIEP_TRIGGERREPEATINTERVAL | DIEP_TYPESPECIFICPARAMS;
slouken@2713
  1189
slouken@2713
  1190
    /* Create the actual effect. */
slouken@2713
  1191
    ret =
slouken@2713
  1192
        IDirectInputEffect_SetParameters(effect->hweffect->ref, &temp, flags);
slouken@2713
  1193
    if (FAILED(ret)) {
slouken@2713
  1194
        DI_SetError("Unable to update effect", ret);
slouken@2713
  1195
        goto err_update;
slouken@2713
  1196
    }
slouken@2713
  1197
slouken@2713
  1198
    /* Copy it over. */
slouken@2713
  1199
    SDL_SYS_HapticFreeDIEFFECT(&effect->hweffect->effect, data->type);
slouken@2713
  1200
    SDL_memcpy(&effect->hweffect->effect, &temp, sizeof(DIEFFECT));
slouken@2713
  1201
slouken@2713
  1202
    return 0;
slouken@2713
  1203
slouken@2713
  1204
  err_update:
slouken@2713
  1205
    SDL_SYS_HapticFreeDIEFFECT(&temp, data->type);
slouken@2713
  1206
    return -1;
slouken@2713
  1207
}
slouken@2713
  1208
slouken@2713
  1209
slouken@2713
  1210
/*
slouken@2713
  1211
 * Runs an effect.
slouken@2713
  1212
 */
slouken@2713
  1213
int
slouken@2713
  1214
SDL_SYS_HapticRunEffect(SDL_Haptic * haptic, struct haptic_effect *effect,
slouken@2713
  1215
                        Uint32 iterations)
slouken@2713
  1216
{
slouken@2713
  1217
    HRESULT ret;
slouken@2713
  1218
    DWORD iter;
slouken@2713
  1219
slouken@2713
  1220
    /* Check if it's infinite. */
slouken@2713
  1221
    if (iterations == SDL_HAPTIC_INFINITY) {
slouken@2713
  1222
        iter = INFINITE;
slouken@2713
  1223
    } else
slouken@2713
  1224
        iter = iterations;
slouken@2713
  1225
slouken@2713
  1226
    /* Run the effect. */
slouken@2713
  1227
    ret = IDirectInputEffect_Start(effect->hweffect->ref, iter, 0);
slouken@2713
  1228
    if (FAILED(ret)) {
slouken@2713
  1229
        DI_SetError("Running the effect", ret);
slouken@2713
  1230
        return -1;
slouken@2713
  1231
    }
slouken@2713
  1232
slouken@2713
  1233
    return 0;
slouken@2713
  1234
}
slouken@2713
  1235
slouken@2713
  1236
slouken@2713
  1237
/*
slouken@2713
  1238
 * Stops an effect.
slouken@2713
  1239
 */
slouken@2713
  1240
int
slouken@2713
  1241
SDL_SYS_HapticStopEffect(SDL_Haptic * haptic, struct haptic_effect *effect)
slouken@2713
  1242
{
slouken@2713
  1243
    HRESULT ret;
slouken@2713
  1244
slouken@2713
  1245
    ret = IDirectInputEffect_Stop(effect->hweffect->ref);
slouken@2713
  1246
    if (FAILED(ret)) {
slouken@2713
  1247
        DI_SetError("Unable to stop effect", ret);
slouken@2713
  1248
        return -1;
slouken@2713
  1249
    }
slouken@2713
  1250
slouken@2713
  1251
    return 0;
slouken@2713
  1252
}
slouken@2713
  1253
slouken@2713
  1254
slouken@2713
  1255
/*
slouken@2713
  1256
 * Frees the effect.
slouken@2713
  1257
 */
slouken@2713
  1258
void
slouken@2713
  1259
SDL_SYS_HapticDestroyEffect(SDL_Haptic * haptic, struct haptic_effect *effect)
slouken@2713
  1260
{
slouken@2713
  1261
    HRESULT ret;
slouken@2713
  1262
slouken@2713
  1263
    ret = IDirectInputEffect_Unload(effect->hweffect->ref);
slouken@2713
  1264
    if (FAILED(ret)) {
slouken@2713
  1265
        DI_SetError("Removing effect from the device", ret);
slouken@2713
  1266
    }
slouken@2713
  1267
    SDL_SYS_HapticFreeDIEFFECT(&effect->hweffect->effect,
slouken@2713
  1268
                               effect->effect.type);
slouken@2713
  1269
    SDL_free(effect->hweffect);
slouken@2713
  1270
    effect->hweffect = NULL;
slouken@2713
  1271
}
slouken@2713
  1272
slouken@2713
  1273
slouken@2713
  1274
/*
slouken@2713
  1275
 * Gets the status of a haptic effect.
slouken@2713
  1276
 */
slouken@2713
  1277
int
slouken@2713
  1278
SDL_SYS_HapticGetEffectStatus(SDL_Haptic * haptic,
slouken@2713
  1279
                              struct haptic_effect *effect)
slouken@2713
  1280
{
slouken@2713
  1281
    HRESULT ret;
slouken@2713
  1282
    DWORD status;
slouken@2713
  1283
slouken@2713
  1284
    ret = IDirectInputEffect_GetEffectStatus(effect->hweffect->ref, &status);
slouken@2713
  1285
    if (FAILED(ret)) {
slouken@2713
  1286
        DI_SetError("Getting effect status", ret);
slouken@2713
  1287
        return -1;
slouken@2713
  1288
    }
slouken@2713
  1289
slouken@2713
  1290
    if (status == 0)
slouken@2713
  1291
        return SDL_FALSE;
slouken@2713
  1292
    return SDL_TRUE;
slouken@2713
  1293
}
slouken@2713
  1294
slouken@2713
  1295
slouken@2713
  1296
/*
slouken@2713
  1297
 * Sets the gain.
slouken@2713
  1298
 */
slouken@2713
  1299
int
slouken@2713
  1300
SDL_SYS_HapticSetGain(SDL_Haptic * haptic, int gain)
slouken@2713
  1301
{
slouken@2713
  1302
    HRESULT ret;
slouken@2713
  1303
    DIPROPDWORD dipdw;
slouken@2713
  1304
slouken@2713
  1305
    /* Create the weird structure thingy. */
slouken@2713
  1306
    dipdw.diph.dwSize = sizeof(DIPROPDWORD);
slouken@2713
  1307
    dipdw.diph.dwHeaderSize = sizeof(DIPROPHEADER);
slouken@2713
  1308
    dipdw.diph.dwObj = 0;
slouken@2713
  1309
    dipdw.diph.dwHow = DIPH_DEVICE;
slouken@2713
  1310
    dipdw.dwData = gain * 100;  /* 0 to 10,000 */
slouken@2713
  1311
slouken@2713
  1312
    /* Try to set the autocenter. */
slouken@2713
  1313
    ret = IDirectInputDevice2_SetProperty(haptic->hwdata->device,
slouken@2713
  1314
                                          DIPROP_FFGAIN, &dipdw.diph);
slouken@2713
  1315
    if (FAILED(ret)) {
slouken@2713
  1316
        DI_SetError("Setting gain", ret);
slouken@2713
  1317
        return -1;
slouken@2713
  1318
    }
slouken@2713
  1319
slouken@2713
  1320
    return 0;
slouken@2713
  1321
}
slouken@2713
  1322
slouken@2713
  1323
slouken@2713
  1324
/*
slouken@2713
  1325
 * Sets the autocentering.
slouken@2713
  1326
 */
slouken@2713
  1327
int
slouken@2713
  1328
SDL_SYS_HapticSetAutocenter(SDL_Haptic * haptic, int autocenter)
slouken@2713
  1329
{
slouken@2713
  1330
    HRESULT ret;
slouken@2713
  1331
    DIPROPDWORD dipdw;
slouken@2713
  1332
slouken@2713
  1333
    /* Create the weird structure thingy. */
slouken@2713
  1334
    dipdw.diph.dwSize = sizeof(DIPROPDWORD);
slouken@2713
  1335
    dipdw.diph.dwHeaderSize = sizeof(DIPROPHEADER);
slouken@2713
  1336
    dipdw.diph.dwObj = 0;
slouken@2713
  1337
    dipdw.diph.dwHow = DIPH_DEVICE;
slouken@2713
  1338
    dipdw.dwData = (autocenter == 0) ? DIPROPAUTOCENTER_OFF :
slouken@2713
  1339
        DIPROPAUTOCENTER_ON;
slouken@2713
  1340
slouken@2713
  1341
    /* Try to set the autocenter. */
slouken@2713
  1342
    ret = IDirectInputDevice2_SetProperty(haptic->hwdata->device,
slouken@2713
  1343
                                          DIPROP_AUTOCENTER, &dipdw.diph);
slouken@2713
  1344
    if (FAILED(ret)) {
slouken@2713
  1345
        DI_SetError("Setting autocenter", ret);
slouken@2713
  1346
        return -1;
slouken@2713
  1347
    }
slouken@2713
  1348
slouken@2713
  1349
    return 0;
slouken@2713
  1350
}
slouken@2713
  1351
slouken@2713
  1352
slouken@2713
  1353
/*
slouken@2713
  1354
 * Pauses the device.
slouken@2713
  1355
 */
slouken@2713
  1356
int
slouken@2713
  1357
SDL_SYS_HapticPause(SDL_Haptic * haptic)
slouken@2713
  1358
{
slouken@2713
  1359
    HRESULT ret;
slouken@2713
  1360
slouken@2713
  1361
    /* Pause the device. */
slouken@2713
  1362
    ret = IDirectInputDevice2_SendForceFeedbackCommand(haptic->hwdata->device,
slouken@2713
  1363
                                                       DISFFC_PAUSE);
slouken@2713
  1364
    if (FAILED(ret)) {
slouken@2713
  1365
        DI_SetError("Pausing the device", ret);
slouken@2713
  1366
        return -1;
slouken@2713
  1367
    }
slouken@2713
  1368
slouken@2713
  1369
    return 0;
slouken@2713
  1370
}
slouken@2713
  1371
slouken@2713
  1372
slouken@2713
  1373
/*
slouken@2713
  1374
 * Pauses the device.
slouken@2713
  1375
 */
slouken@2713
  1376
int
slouken@2713
  1377
SDL_SYS_HapticUnpause(SDL_Haptic * haptic)
slouken@2713
  1378
{
slouken@2713
  1379
    HRESULT ret;
slouken@2713
  1380
slouken@2713
  1381
    /* Unpause the device. */
slouken@2713
  1382
    ret = IDirectInputDevice2_SendForceFeedbackCommand(haptic->hwdata->device,
slouken@2713
  1383
                                                       DISFFC_CONTINUE);
slouken@2713
  1384
    if (FAILED(ret)) {
slouken@2713
  1385
        DI_SetError("Pausing the device", ret);
slouken@2713
  1386
        return -1;
slouken@2713
  1387
    }
slouken@2713
  1388
slouken@2713
  1389
    return 0;
slouken@2713
  1390
}
slouken@2713
  1391
slouken@2713
  1392
slouken@2713
  1393
/*
slouken@2713
  1394
 * Stops all the playing effects on the device.
slouken@2713
  1395
 */
slouken@2713
  1396
int
bobbens@2715
  1397
SDL_SYS_HapticStopAll(SDL_Haptic * haptic)
slouken@2713
  1398
{
slouken@2713
  1399
    HRESULT ret;
slouken@2713
  1400
slouken@2713
  1401
    /* Try to stop the effects. */
slouken@2713
  1402
    ret = IDirectInputDevice2_SendForceFeedbackCommand(haptic->hwdata->device,
slouken@2713
  1403
                                                       DISFFC_STOPALL);
slouken@2713
  1404
    if (FAILED(ret)) {
slouken@2713
  1405
        DI_SetError("Stopping the device", ret);
slouken@2713
  1406
        return -1;
slouken@2713
  1407
    }
slouken@2713
  1408
slouken@2713
  1409
    return 0;
slouken@2713
  1410
}
slouken@2713
  1411
slouken@2713
  1412
slouken@2713
  1413
#endif /* SDL_HAPTIC_DINPUT */