| 1 | /* | 
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| 2 | Simple DirectMedia Layer | 
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| 3 | Copyright (C) 1997-2022 Sam Lantinga <slouken@libsdl.org> | 
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| 4 |  | 
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| 5 | This software is provided 'as-is', without any express or implied | 
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| 6 | warranty.  In no event will the authors be held liable for any damages | 
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| 7 | arising from the use of this software. | 
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| 8 |  | 
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| 9 | Permission is granted to anyone to use this software for any purpose, | 
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| 10 | including commercial applications, and to alter it and redistribute it | 
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| 11 | freely, subject to the following restrictions: | 
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| 12 |  | 
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| 13 | 1. The origin of this software must not be misrepresented; you must not | 
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| 14 | claim that you wrote the original software. If you use this software | 
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| 15 | in a product, an acknowledgment in the product documentation would be | 
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| 16 | appreciated but is not required. | 
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| 17 | 2. Altered source versions must be plainly marked as such, and must not be | 
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| 18 | misrepresented as being the original software. | 
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| 19 | 3. This notice may not be removed or altered from any source distribution. | 
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| 20 | */ | 
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| 21 |  | 
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| 22 | /** | 
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| 23 | *  \file SDL_haptic.h | 
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| 24 | * | 
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| 25 | *  \brief The SDL haptic subsystem allows you to control haptic (force feedback) | 
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| 26 | *         devices. | 
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| 27 | * | 
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| 28 | *  The basic usage is as follows: | 
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| 29 | *   - Initialize the subsystem (::SDL_INIT_HAPTIC). | 
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| 30 | *   - Open a haptic device. | 
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| 31 | *    - SDL_HapticOpen() to open from index. | 
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| 32 | *    - SDL_HapticOpenFromJoystick() to open from an existing joystick. | 
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| 33 | *   - Create an effect (::SDL_HapticEffect). | 
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| 34 | *   - Upload the effect with SDL_HapticNewEffect(). | 
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| 35 | *   - Run the effect with SDL_HapticRunEffect(). | 
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| 36 | *   - (optional) Free the effect with SDL_HapticDestroyEffect(). | 
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| 37 | *   - Close the haptic device with SDL_HapticClose(). | 
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| 38 | * | 
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| 39 | * \par Simple rumble example: | 
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| 40 | * \code | 
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| 41 | *    SDL_Haptic *haptic; | 
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| 42 | * | 
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| 43 | *    // Open the device | 
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| 44 | *    haptic = SDL_HapticOpen( 0 ); | 
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| 45 | *    if (haptic == NULL) | 
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| 46 | *       return -1; | 
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| 47 | * | 
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| 48 | *    // Initialize simple rumble | 
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| 49 | *    if (SDL_HapticRumbleInit( haptic ) != 0) | 
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| 50 | *       return -1; | 
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| 51 | * | 
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| 52 | *    // Play effect at 50% strength for 2 seconds | 
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| 53 | *    if (SDL_HapticRumblePlay( haptic, 0.5, 2000 ) != 0) | 
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| 54 | *       return -1; | 
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| 55 | *    SDL_Delay( 2000 ); | 
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| 56 | * | 
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| 57 | *    // Clean up | 
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| 58 | *    SDL_HapticClose( haptic ); | 
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| 59 | * \endcode | 
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| 60 | * | 
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| 61 | * \par Complete example: | 
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| 62 | * \code | 
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| 63 | * int test_haptic( SDL_Joystick * joystick ) { | 
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| 64 | *    SDL_Haptic *haptic; | 
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| 65 | *    SDL_HapticEffect effect; | 
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| 66 | *    int effect_id; | 
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| 67 | * | 
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| 68 | *    // Open the device | 
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| 69 | *    haptic = SDL_HapticOpenFromJoystick( joystick ); | 
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| 70 | *    if (haptic == NULL) return -1; // Most likely joystick isn't haptic | 
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| 71 | * | 
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| 72 | *    // See if it can do sine waves | 
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| 73 | *    if ((SDL_HapticQuery(haptic) & SDL_HAPTIC_SINE)==0) { | 
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| 74 | *       SDL_HapticClose(haptic); // No sine effect | 
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| 75 | *       return -1; | 
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| 76 | *    } | 
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| 77 | * | 
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| 78 | *    // Create the effect | 
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| 79 | *    SDL_memset( &effect, 0, sizeof(SDL_HapticEffect) ); // 0 is safe default | 
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| 80 | *    effect.type = SDL_HAPTIC_SINE; | 
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| 81 | *    effect.periodic.direction.type = SDL_HAPTIC_POLAR; // Polar coordinates | 
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| 82 | *    effect.periodic.direction.dir[0] = 18000; // Force comes from south | 
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| 83 | *    effect.periodic.period = 1000; // 1000 ms | 
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| 84 | *    effect.periodic.magnitude = 20000; // 20000/32767 strength | 
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| 85 | *    effect.periodic.length = 5000; // 5 seconds long | 
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| 86 | *    effect.periodic.attack_length = 1000; // Takes 1 second to get max strength | 
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| 87 | *    effect.periodic.fade_length = 1000; // Takes 1 second to fade away | 
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| 88 | * | 
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| 89 | *    // Upload the effect | 
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| 90 | *    effect_id = SDL_HapticNewEffect( haptic, &effect ); | 
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| 91 | * | 
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| 92 | *    // Test the effect | 
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| 93 | *    SDL_HapticRunEffect( haptic, effect_id, 1 ); | 
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| 94 | *    SDL_Delay( 5000); // Wait for the effect to finish | 
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| 95 | * | 
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| 96 | *    // We destroy the effect, although closing the device also does this | 
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| 97 | *    SDL_HapticDestroyEffect( haptic, effect_id ); | 
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| 98 | * | 
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| 99 | *    // Close the device | 
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| 100 | *    SDL_HapticClose(haptic); | 
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| 101 | * | 
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| 102 | *    return 0; // Success | 
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| 103 | * } | 
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| 104 | * \endcode | 
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| 105 | */ | 
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| 106 |  | 
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| 107 | #ifndef SDL_haptic_h_ | 
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| 108 | #define SDL_haptic_h_ | 
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| 109 |  | 
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| 110 | #include "SDL_stdinc.h" | 
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| 111 | #include "SDL_error.h" | 
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| 112 | #include "SDL_joystick.h" | 
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| 113 |  | 
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| 114 | #include "begin_code.h" | 
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| 115 | /* Set up for C function definitions, even when using C++ */ | 
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| 116 | #ifdef __cplusplus | 
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| 117 | extern "C"{ | 
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| 118 | #endif /* __cplusplus */ | 
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| 119 |  | 
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| 120 | /* FIXME: For SDL 2.1, adjust all the magnitude variables to be Uint16 (0xFFFF). | 
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| 121 | * | 
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| 122 | * At the moment the magnitude variables are mixed between signed/unsigned, and | 
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| 123 | * it is also not made clear that ALL of those variables expect a max of 0x7FFF. | 
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| 124 | * | 
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| 125 | * Some platforms may have higher precision than that (Linux FF, Windows XInput) | 
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| 126 | * so we should fix the inconsistency in favor of higher possible precision, | 
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| 127 | * adjusting for platforms that use different scales. | 
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| 128 | * -flibit | 
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| 129 | */ | 
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| 130 |  | 
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| 131 | /** | 
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| 132 | *  \typedef SDL_Haptic | 
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| 133 | * | 
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| 134 | *  \brief The haptic structure used to identify an SDL haptic. | 
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| 135 | * | 
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| 136 | *  \sa SDL_HapticOpen | 
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| 137 | *  \sa SDL_HapticOpenFromJoystick | 
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| 138 | *  \sa SDL_HapticClose | 
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| 139 | */ | 
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| 140 | struct _SDL_Haptic; | 
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| 141 | typedef struct _SDL_Haptic SDL_Haptic; | 
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| 142 |  | 
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| 143 |  | 
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| 144 | /** | 
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| 145 | *  \name Haptic features | 
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| 146 | * | 
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| 147 | *  Different haptic features a device can have. | 
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| 148 | */ | 
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| 149 | /* @{ */ | 
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| 150 |  | 
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| 151 | /** | 
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| 152 | *  \name Haptic effects | 
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| 153 | */ | 
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| 154 | /* @{ */ | 
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| 155 |  | 
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| 156 | /** | 
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| 157 | *  \brief Constant effect supported. | 
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| 158 | * | 
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| 159 | *  Constant haptic effect. | 
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| 160 | * | 
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| 161 | *  \sa SDL_HapticCondition | 
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| 162 | */ | 
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| 163 | #define SDL_HAPTIC_CONSTANT   (1u<<0) | 
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| 164 |  | 
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| 165 | /** | 
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| 166 | *  \brief Sine wave effect supported. | 
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| 167 | * | 
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| 168 | *  Periodic haptic effect that simulates sine waves. | 
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| 169 | * | 
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| 170 | *  \sa SDL_HapticPeriodic | 
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| 171 | */ | 
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| 172 | #define SDL_HAPTIC_SINE       (1u<<1) | 
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| 173 |  | 
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| 174 | /** | 
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| 175 | *  \brief Left/Right effect supported. | 
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| 176 | * | 
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| 177 | *  Haptic effect for direct control over high/low frequency motors. | 
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| 178 | * | 
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| 179 | *  \sa SDL_HapticLeftRight | 
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| 180 | * \warning this value was SDL_HAPTIC_SQUARE right before 2.0.0 shipped. Sorry, | 
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| 181 | *          we ran out of bits, and this is important for XInput devices. | 
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| 182 | */ | 
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| 183 | #define SDL_HAPTIC_LEFTRIGHT     (1u<<2) | 
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| 184 |  | 
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| 185 | /* !!! FIXME: put this back when we have more bits in 2.1 */ | 
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| 186 | /* #define SDL_HAPTIC_SQUARE     (1<<2) */ | 
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| 187 |  | 
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| 188 | /** | 
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| 189 | *  \brief Triangle wave effect supported. | 
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| 190 | * | 
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| 191 | *  Periodic haptic effect that simulates triangular waves. | 
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| 192 | * | 
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| 193 | *  \sa SDL_HapticPeriodic | 
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| 194 | */ | 
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| 195 | #define SDL_HAPTIC_TRIANGLE   (1u<<3) | 
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| 196 |  | 
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| 197 | /** | 
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| 198 | *  \brief Sawtoothup wave effect supported. | 
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| 199 | * | 
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| 200 | *  Periodic haptic effect that simulates saw tooth up waves. | 
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| 201 | * | 
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| 202 | *  \sa SDL_HapticPeriodic | 
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| 203 | */ | 
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| 204 | #define SDL_HAPTIC_SAWTOOTHUP (1u<<4) | 
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| 205 |  | 
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| 206 | /** | 
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| 207 | *  \brief Sawtoothdown wave effect supported. | 
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| 208 | * | 
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| 209 | *  Periodic haptic effect that simulates saw tooth down waves. | 
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| 210 | * | 
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| 211 | *  \sa SDL_HapticPeriodic | 
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| 212 | */ | 
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| 213 | #define SDL_HAPTIC_SAWTOOTHDOWN (1u<<5) | 
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| 214 |  | 
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| 215 | /** | 
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| 216 | *  \brief Ramp effect supported. | 
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| 217 | * | 
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| 218 | *  Ramp haptic effect. | 
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| 219 | * | 
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| 220 | *  \sa SDL_HapticRamp | 
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| 221 | */ | 
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| 222 | #define SDL_HAPTIC_RAMP       (1u<<6) | 
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| 223 |  | 
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| 224 | /** | 
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| 225 | *  \brief Spring effect supported - uses axes position. | 
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| 226 | * | 
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| 227 | *  Condition haptic effect that simulates a spring.  Effect is based on the | 
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| 228 | *  axes position. | 
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| 229 | * | 
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| 230 | *  \sa SDL_HapticCondition | 
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| 231 | */ | 
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| 232 | #define SDL_HAPTIC_SPRING     (1u<<7) | 
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| 233 |  | 
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| 234 | /** | 
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| 235 | *  \brief Damper effect supported - uses axes velocity. | 
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| 236 | * | 
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| 237 | *  Condition haptic effect that simulates dampening.  Effect is based on the | 
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| 238 | *  axes velocity. | 
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| 239 | * | 
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| 240 | *  \sa SDL_HapticCondition | 
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| 241 | */ | 
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| 242 | #define SDL_HAPTIC_DAMPER     (1u<<8) | 
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| 243 |  | 
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| 244 | /** | 
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| 245 | *  \brief Inertia effect supported - uses axes acceleration. | 
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| 246 | * | 
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| 247 | *  Condition haptic effect that simulates inertia.  Effect is based on the axes | 
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| 248 | *  acceleration. | 
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| 249 | * | 
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| 250 | *  \sa SDL_HapticCondition | 
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| 251 | */ | 
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| 252 | #define SDL_HAPTIC_INERTIA    (1u<<9) | 
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| 253 |  | 
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| 254 | /** | 
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| 255 | *  \brief Friction effect supported - uses axes movement. | 
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| 256 | * | 
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| 257 | *  Condition haptic effect that simulates friction.  Effect is based on the | 
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| 258 | *  axes movement. | 
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| 259 | * | 
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| 260 | *  \sa SDL_HapticCondition | 
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| 261 | */ | 
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| 262 | #define SDL_HAPTIC_FRICTION   (1u<<10) | 
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| 263 |  | 
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| 264 | /** | 
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| 265 | *  \brief Custom effect is supported. | 
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| 266 | * | 
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| 267 | *  User defined custom haptic effect. | 
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| 268 | */ | 
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| 269 | #define SDL_HAPTIC_CUSTOM     (1u<<11) | 
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| 270 |  | 
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| 271 | /* @} *//* Haptic effects */ | 
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| 272 |  | 
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| 273 | /* These last few are features the device has, not effects */ | 
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| 274 |  | 
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| 275 | /** | 
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| 276 | *  \brief Device can set global gain. | 
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| 277 | * | 
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| 278 | *  Device supports setting the global gain. | 
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| 279 | * | 
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| 280 | *  \sa SDL_HapticSetGain | 
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| 281 | */ | 
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| 282 | #define SDL_HAPTIC_GAIN       (1u<<12) | 
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| 283 |  | 
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| 284 | /** | 
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| 285 | *  \brief Device can set autocenter. | 
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| 286 | * | 
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| 287 | *  Device supports setting autocenter. | 
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| 288 | * | 
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| 289 | *  \sa SDL_HapticSetAutocenter | 
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| 290 | */ | 
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| 291 | #define SDL_HAPTIC_AUTOCENTER (1u<<13) | 
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| 292 |  | 
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| 293 | /** | 
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| 294 | *  \brief Device can be queried for effect status. | 
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| 295 | * | 
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| 296 | *  Device supports querying effect status. | 
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| 297 | * | 
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| 298 | *  \sa SDL_HapticGetEffectStatus | 
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| 299 | */ | 
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| 300 | #define SDL_HAPTIC_STATUS     (1u<<14) | 
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| 301 |  | 
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| 302 | /** | 
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| 303 | *  \brief Device can be paused. | 
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| 304 | * | 
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| 305 | *  Devices supports being paused. | 
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| 306 | * | 
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| 307 | *  \sa SDL_HapticPause | 
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| 308 | *  \sa SDL_HapticUnpause | 
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| 309 | */ | 
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| 310 | #define SDL_HAPTIC_PAUSE      (1u<<15) | 
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| 311 |  | 
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| 312 |  | 
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| 313 | /** | 
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| 314 | * \name Direction encodings | 
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| 315 | */ | 
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| 316 | /* @{ */ | 
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| 317 |  | 
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| 318 | /** | 
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| 319 | *  \brief Uses polar coordinates for the direction. | 
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| 320 | * | 
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| 321 | *  \sa SDL_HapticDirection | 
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| 322 | */ | 
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| 323 | #define SDL_HAPTIC_POLAR      0 | 
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| 324 |  | 
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| 325 | /** | 
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| 326 | *  \brief Uses cartesian coordinates for the direction. | 
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| 327 | * | 
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| 328 | *  \sa SDL_HapticDirection | 
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| 329 | */ | 
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| 330 | #define SDL_HAPTIC_CARTESIAN  1 | 
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| 331 |  | 
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| 332 | /** | 
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| 333 | *  \brief Uses spherical coordinates for the direction. | 
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| 334 | * | 
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| 335 | *  \sa SDL_HapticDirection | 
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| 336 | */ | 
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| 337 | #define SDL_HAPTIC_SPHERICAL  2 | 
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| 338 |  | 
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| 339 | /** | 
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| 340 | *  \brief Use this value to play an effect on the steering wheel axis. This | 
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| 341 | *  provides better compatibility across platforms and devices as SDL will guess | 
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| 342 | *  the correct axis. | 
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| 343 | *  \sa SDL_HapticDirection | 
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| 344 | */ | 
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| 345 | #define SDL_HAPTIC_STEERING_AXIS 3 | 
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| 346 |  | 
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| 347 | /* @} *//* Direction encodings */ | 
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| 348 |  | 
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| 349 | /* @} *//* Haptic features */ | 
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| 350 |  | 
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| 351 | /* | 
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| 352 | * Misc defines. | 
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| 353 | */ | 
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| 354 |  | 
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| 355 | /** | 
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| 356 | * \brief Used to play a device an infinite number of times. | 
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| 357 | * | 
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| 358 | * \sa SDL_HapticRunEffect | 
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| 359 | */ | 
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| 360 | #define SDL_HAPTIC_INFINITY   4294967295U | 
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| 361 |  | 
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| 362 |  | 
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| 363 | /** | 
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| 364 | *  \brief Structure that represents a haptic direction. | 
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| 365 | * | 
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| 366 | *  This is the direction where the force comes from, | 
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| 367 | *  instead of the direction in which the force is exerted. | 
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| 368 | * | 
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| 369 | *  Directions can be specified by: | 
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| 370 | *   - ::SDL_HAPTIC_POLAR : Specified by polar coordinates. | 
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| 371 | *   - ::SDL_HAPTIC_CARTESIAN : Specified by cartesian coordinates. | 
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| 372 | *   - ::SDL_HAPTIC_SPHERICAL : Specified by spherical coordinates. | 
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| 373 | * | 
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| 374 | *  Cardinal directions of the haptic device are relative to the positioning | 
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| 375 | *  of the device.  North is considered to be away from the user. | 
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| 376 | * | 
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| 377 | *  The following diagram represents the cardinal directions: | 
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| 378 | *  \verbatim | 
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| 379 | .--. | 
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| 380 | |__| .-------. | 
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| 381 | |=.| |.-----.| | 
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| 382 | |--| ||     || | 
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| 383 | |  | |'-----'| | 
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| 384 | |__|~')_____(' | 
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| 385 | [ COMPUTER ] | 
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| 386 |  | 
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| 387 |  | 
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| 388 | North (0,-1) | 
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| 389 | ^ | 
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| 390 | | | 
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| 391 | | | 
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| 392 | (-1,0)  West <----[ HAPTIC ]----> East (1,0) | 
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| 393 | | | 
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| 394 | | | 
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| 395 | v | 
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| 396 | South (0,1) | 
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| 397 |  | 
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| 398 |  | 
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| 399 | [ USER ] | 
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| 400 | \|||/ | 
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| 401 | (o o) | 
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| 402 | ---ooO-(_)-Ooo--- | 
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| 403 | \endverbatim | 
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| 404 | * | 
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| 405 | *  If type is ::SDL_HAPTIC_POLAR, direction is encoded by hundredths of a | 
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| 406 | *  degree starting north and turning clockwise.  ::SDL_HAPTIC_POLAR only uses | 
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| 407 | *  the first \c dir parameter.  The cardinal directions would be: | 
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| 408 | *   - North: 0 (0 degrees) | 
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| 409 | *   - East: 9000 (90 degrees) | 
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| 410 | *   - South: 18000 (180 degrees) | 
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| 411 | *   - West: 27000 (270 degrees) | 
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| 412 | * | 
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| 413 | *  If type is ::SDL_HAPTIC_CARTESIAN, direction is encoded by three positions | 
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| 414 | *  (X axis, Y axis and Z axis (with 3 axes)).  ::SDL_HAPTIC_CARTESIAN uses | 
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| 415 | *  the first three \c dir parameters.  The cardinal directions would be: | 
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| 416 | *   - North:  0,-1, 0 | 
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| 417 | *   - East:   1, 0, 0 | 
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| 418 | *   - South:  0, 1, 0 | 
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| 419 | *   - West:  -1, 0, 0 | 
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| 420 | * | 
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| 421 | *  The Z axis represents the height of the effect if supported, otherwise | 
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| 422 | *  it's unused.  In cartesian encoding (1, 2) would be the same as (2, 4), you | 
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| 423 | *  can use any multiple you want, only the direction matters. | 
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| 424 | * | 
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| 425 | *  If type is ::SDL_HAPTIC_SPHERICAL, direction is encoded by two rotations. | 
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| 426 | *  The first two \c dir parameters are used.  The \c dir parameters are as | 
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| 427 | *  follows (all values are in hundredths of degrees): | 
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| 428 | *   - Degrees from (1, 0) rotated towards (0, 1). | 
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| 429 | *   - Degrees towards (0, 0, 1) (device needs at least 3 axes). | 
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| 430 | * | 
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| 431 | * | 
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| 432 | *  Example of force coming from the south with all encodings (force coming | 
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| 433 | *  from the south means the user will have to pull the stick to counteract): | 
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| 434 | *  \code | 
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| 435 | *  SDL_HapticDirection direction; | 
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| 436 | * | 
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| 437 | *  // Cartesian directions | 
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| 438 | *  direction.type = SDL_HAPTIC_CARTESIAN; // Using cartesian direction encoding. | 
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| 439 | *  direction.dir[0] = 0; // X position | 
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| 440 | *  direction.dir[1] = 1; // Y position | 
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| 441 | *  // Assuming the device has 2 axes, we don't need to specify third parameter. | 
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| 442 | * | 
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| 443 | *  // Polar directions | 
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| 444 | *  direction.type = SDL_HAPTIC_POLAR; // We'll be using polar direction encoding. | 
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| 445 | *  direction.dir[0] = 18000; // Polar only uses first parameter | 
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| 446 | * | 
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| 447 | *  // Spherical coordinates | 
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| 448 | *  direction.type = SDL_HAPTIC_SPHERICAL; // Spherical encoding | 
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| 449 | *  direction.dir[0] = 9000; // Since we only have two axes we don't need more parameters. | 
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| 450 | *  \endcode | 
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| 451 | * | 
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| 452 | *  \sa SDL_HAPTIC_POLAR | 
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| 453 | *  \sa SDL_HAPTIC_CARTESIAN | 
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| 454 | *  \sa SDL_HAPTIC_SPHERICAL | 
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| 455 | *  \sa SDL_HAPTIC_STEERING_AXIS | 
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| 456 | *  \sa SDL_HapticEffect | 
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| 457 | *  \sa SDL_HapticNumAxes | 
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| 458 | */ | 
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| 459 | typedef struct SDL_HapticDirection | 
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| 460 | { | 
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| 461 | Uint8 type;         /**< The type of encoding. */ | 
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| 462 | Sint32 dir[3];      /**< The encoded direction. */ | 
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| 463 | } SDL_HapticDirection; | 
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| 464 |  | 
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| 465 |  | 
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| 466 | /** | 
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| 467 | *  \brief A structure containing a template for a Constant effect. | 
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| 468 | * | 
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| 469 | *  This struct is exclusively for the ::SDL_HAPTIC_CONSTANT effect. | 
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| 470 | * | 
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| 471 | *  A constant effect applies a constant force in the specified direction | 
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| 472 | *  to the joystick. | 
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| 473 | * | 
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| 474 | *  \sa SDL_HAPTIC_CONSTANT | 
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| 475 | *  \sa SDL_HapticEffect | 
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| 476 | */ | 
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| 477 | typedef struct SDL_HapticConstant | 
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| 478 | { | 
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| 479 | /* Header */ | 
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| 480 | Uint16 type;            /**< ::SDL_HAPTIC_CONSTANT */ | 
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| 481 | SDL_HapticDirection direction;  /**< Direction of the effect. */ | 
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| 482 |  | 
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| 483 | /* Replay */ | 
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| 484 | Uint32 length;          /**< Duration of the effect. */ | 
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| 485 | Uint16 delay;           /**< Delay before starting the effect. */ | 
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| 486 |  | 
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| 487 | /* Trigger */ | 
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| 488 | Uint16 button;          /**< Button that triggers the effect. */ | 
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| 489 | Uint16 interval;        /**< How soon it can be triggered again after button. */ | 
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| 490 |  | 
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| 491 | /* Constant */ | 
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| 492 | Sint16 level;           /**< Strength of the constant effect. */ | 
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| 493 |  | 
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| 494 | /* Envelope */ | 
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| 495 | Uint16 attack_length;   /**< Duration of the attack. */ | 
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| 496 | Uint16 attack_level;    /**< Level at the start of the attack. */ | 
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| 497 | Uint16 fade_length;     /**< Duration of the fade. */ | 
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| 498 | Uint16 fade_level;      /**< Level at the end of the fade. */ | 
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| 499 | } SDL_HapticConstant; | 
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| 500 |  | 
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| 501 | /** | 
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| 502 | *  \brief A structure containing a template for a Periodic effect. | 
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| 503 | * | 
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| 504 | *  The struct handles the following effects: | 
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| 505 | *   - ::SDL_HAPTIC_SINE | 
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| 506 | *   - ::SDL_HAPTIC_LEFTRIGHT | 
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| 507 | *   - ::SDL_HAPTIC_TRIANGLE | 
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| 508 | *   - ::SDL_HAPTIC_SAWTOOTHUP | 
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| 509 | *   - ::SDL_HAPTIC_SAWTOOTHDOWN | 
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| 510 | * | 
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| 511 | *  A periodic effect consists in a wave-shaped effect that repeats itself | 
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| 512 | *  over time.  The type determines the shape of the wave and the parameters | 
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| 513 | *  determine the dimensions of the wave. | 
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| 514 | * | 
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| 515 | *  Phase is given by hundredth of a degree meaning that giving the phase a value | 
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| 516 | *  of 9000 will displace it 25% of its period.  Here are sample values: | 
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| 517 | *   -     0: No phase displacement. | 
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| 518 | *   -  9000: Displaced 25% of its period. | 
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| 519 | *   - 18000: Displaced 50% of its period. | 
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| 520 | *   - 27000: Displaced 75% of its period. | 
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| 521 | *   - 36000: Displaced 100% of its period, same as 0, but 0 is preferred. | 
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| 522 | * | 
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| 523 | *  Examples: | 
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| 524 | *  \verbatim | 
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| 525 | SDL_HAPTIC_SINE | 
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| 526 | __      __      __      __ | 
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| 527 | /  \    /  \    /  \    / | 
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| 528 | /    \__/    \__/    \__/ | 
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| 529 |  | 
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| 530 | SDL_HAPTIC_SQUARE | 
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| 531 | __    __    __    __    __ | 
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| 532 | |  |  |  |  |  |  |  |  |  | | 
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| 533 | |  |__|  |__|  |__|  |__|  | | 
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| 534 |  | 
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| 535 | SDL_HAPTIC_TRIANGLE | 
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| 536 | /\    /\    /\    /\    /\ | 
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| 537 | /  \  /  \  /  \  /  \  / | 
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| 538 | /    \/    \/    \/    \/ | 
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| 539 |  | 
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| 540 | SDL_HAPTIC_SAWTOOTHUP | 
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| 541 | /|  /|  /|  /|  /|  /|  /| | 
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| 542 | / | / | / | / | / | / | / | | 
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| 543 | /  |/  |/  |/  |/  |/  |/  | | 
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| 544 |  | 
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| 545 | SDL_HAPTIC_SAWTOOTHDOWN | 
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| 546 | \  |\  |\  |\  |\  |\  |\  | | 
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| 547 | \ | \ | \ | \ | \ | \ | \ | | 
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| 548 | \|  \|  \|  \|  \|  \|  \| | 
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| 549 | \endverbatim | 
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| 550 | * | 
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| 551 | *  \sa SDL_HAPTIC_SINE | 
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| 552 | *  \sa SDL_HAPTIC_LEFTRIGHT | 
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| 553 | *  \sa SDL_HAPTIC_TRIANGLE | 
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| 554 | *  \sa SDL_HAPTIC_SAWTOOTHUP | 
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| 555 | *  \sa SDL_HAPTIC_SAWTOOTHDOWN | 
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| 556 | *  \sa SDL_HapticEffect | 
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| 557 | */ | 
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| 558 | typedef struct SDL_HapticPeriodic | 
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| 559 | { | 
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| 560 | /* Header */ | 
|---|
| 561 | Uint16 type;        /**< ::SDL_HAPTIC_SINE, ::SDL_HAPTIC_LEFTRIGHT, | 
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| 562 | ::SDL_HAPTIC_TRIANGLE, ::SDL_HAPTIC_SAWTOOTHUP or | 
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| 563 | ::SDL_HAPTIC_SAWTOOTHDOWN */ | 
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| 564 | SDL_HapticDirection direction;  /**< Direction of the effect. */ | 
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| 565 |  | 
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| 566 | /* Replay */ | 
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| 567 | Uint32 length;      /**< Duration of the effect. */ | 
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| 568 | Uint16 delay;       /**< Delay before starting the effect. */ | 
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| 569 |  | 
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| 570 | /* Trigger */ | 
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| 571 | Uint16 button;      /**< Button that triggers the effect. */ | 
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| 572 | Uint16 interval;    /**< How soon it can be triggered again after button. */ | 
|---|
| 573 |  | 
|---|
| 574 | /* Periodic */ | 
|---|
| 575 | Uint16 period;      /**< Period of the wave. */ | 
|---|
| 576 | Sint16 magnitude;   /**< Peak value; if negative, equivalent to 180 degrees extra phase shift. */ | 
|---|
| 577 | Sint16 offset;      /**< Mean value of the wave. */ | 
|---|
| 578 | Uint16 phase;       /**< Positive phase shift given by hundredth of a degree. */ | 
|---|
| 579 |  | 
|---|
| 580 | /* Envelope */ | 
|---|
| 581 | Uint16 attack_length;   /**< Duration of the attack. */ | 
|---|
| 582 | Uint16 attack_level;    /**< Level at the start of the attack. */ | 
|---|
| 583 | Uint16 fade_length; /**< Duration of the fade. */ | 
|---|
| 584 | Uint16 fade_level;  /**< Level at the end of the fade. */ | 
|---|
| 585 | } SDL_HapticPeriodic; | 
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| 586 |  | 
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| 587 | /** | 
|---|
| 588 | *  \brief A structure containing a template for a Condition effect. | 
|---|
| 589 | * | 
|---|
| 590 | *  The struct handles the following effects: | 
|---|
| 591 | *   - ::SDL_HAPTIC_SPRING: Effect based on axes position. | 
|---|
| 592 | *   - ::SDL_HAPTIC_DAMPER: Effect based on axes velocity. | 
|---|
| 593 | *   - ::SDL_HAPTIC_INERTIA: Effect based on axes acceleration. | 
|---|
| 594 | *   - ::SDL_HAPTIC_FRICTION: Effect based on axes movement. | 
|---|
| 595 | * | 
|---|
| 596 | *  Direction is handled by condition internals instead of a direction member. | 
|---|
| 597 | *  The condition effect specific members have three parameters.  The first | 
|---|
| 598 | *  refers to the X axis, the second refers to the Y axis and the third | 
|---|
| 599 | *  refers to the Z axis.  The right terms refer to the positive side of the | 
|---|
| 600 | *  axis and the left terms refer to the negative side of the axis.  Please | 
|---|
| 601 | *  refer to the ::SDL_HapticDirection diagram for which side is positive and | 
|---|
| 602 | *  which is negative. | 
|---|
| 603 | * | 
|---|
| 604 | *  \sa SDL_HapticDirection | 
|---|
| 605 | *  \sa SDL_HAPTIC_SPRING | 
|---|
| 606 | *  \sa SDL_HAPTIC_DAMPER | 
|---|
| 607 | *  \sa SDL_HAPTIC_INERTIA | 
|---|
| 608 | *  \sa SDL_HAPTIC_FRICTION | 
|---|
| 609 | *  \sa SDL_HapticEffect | 
|---|
| 610 | */ | 
|---|
| 611 | typedef struct SDL_HapticCondition | 
|---|
| 612 | { | 
|---|
| 613 | /* Header */ | 
|---|
| 614 | Uint16 type;            /**< ::SDL_HAPTIC_SPRING, ::SDL_HAPTIC_DAMPER, | 
|---|
| 615 | ::SDL_HAPTIC_INERTIA or ::SDL_HAPTIC_FRICTION */ | 
|---|
| 616 | SDL_HapticDirection direction;  /**< Direction of the effect - Not used ATM. */ | 
|---|
| 617 |  | 
|---|
| 618 | /* Replay */ | 
|---|
| 619 | Uint32 length;          /**< Duration of the effect. */ | 
|---|
| 620 | Uint16 delay;           /**< Delay before starting the effect. */ | 
|---|
| 621 |  | 
|---|
| 622 | /* Trigger */ | 
|---|
| 623 | Uint16 button;          /**< Button that triggers the effect. */ | 
|---|
| 624 | Uint16 interval;        /**< How soon it can be triggered again after button. */ | 
|---|
| 625 |  | 
|---|
| 626 | /* Condition */ | 
|---|
| 627 | Uint16 right_sat[3];    /**< Level when joystick is to the positive side; max 0xFFFF. */ | 
|---|
| 628 | Uint16 left_sat[3];     /**< Level when joystick is to the negative side; max 0xFFFF. */ | 
|---|
| 629 | Sint16 right_coeff[3];  /**< How fast to increase the force towards the positive side. */ | 
|---|
| 630 | Sint16 left_coeff[3];   /**< How fast to increase the force towards the negative side. */ | 
|---|
| 631 | Uint16 deadband[3];     /**< Size of the dead zone; max 0xFFFF: whole axis-range when 0-centered. */ | 
|---|
| 632 | Sint16 center[3];       /**< Position of the dead zone. */ | 
|---|
| 633 | } SDL_HapticCondition; | 
|---|
| 634 |  | 
|---|
| 635 | /** | 
|---|
| 636 | *  \brief A structure containing a template for a Ramp effect. | 
|---|
| 637 | * | 
|---|
| 638 | *  This struct is exclusively for the ::SDL_HAPTIC_RAMP effect. | 
|---|
| 639 | * | 
|---|
| 640 | *  The ramp effect starts at start strength and ends at end strength. | 
|---|
| 641 | *  It augments in linear fashion.  If you use attack and fade with a ramp | 
|---|
| 642 | *  the effects get added to the ramp effect making the effect become | 
|---|
| 643 | *  quadratic instead of linear. | 
|---|
| 644 | * | 
|---|
| 645 | *  \sa SDL_HAPTIC_RAMP | 
|---|
| 646 | *  \sa SDL_HapticEffect | 
|---|
| 647 | */ | 
|---|
| 648 | typedef struct SDL_HapticRamp | 
|---|
| 649 | { | 
|---|
| 650 | /* Header */ | 
|---|
| 651 | Uint16 type;            /**< ::SDL_HAPTIC_RAMP */ | 
|---|
| 652 | SDL_HapticDirection direction;  /**< Direction of the effect. */ | 
|---|
| 653 |  | 
|---|
| 654 | /* Replay */ | 
|---|
| 655 | Uint32 length;          /**< Duration of the effect. */ | 
|---|
| 656 | Uint16 delay;           /**< Delay before starting the effect. */ | 
|---|
| 657 |  | 
|---|
| 658 | /* Trigger */ | 
|---|
| 659 | Uint16 button;          /**< Button that triggers the effect. */ | 
|---|
| 660 | Uint16 interval;        /**< How soon it can be triggered again after button. */ | 
|---|
| 661 |  | 
|---|
| 662 | /* Ramp */ | 
|---|
| 663 | Sint16 start;           /**< Beginning strength level. */ | 
|---|
| 664 | Sint16 end;             /**< Ending strength level. */ | 
|---|
| 665 |  | 
|---|
| 666 | /* Envelope */ | 
|---|
| 667 | Uint16 attack_length;   /**< Duration of the attack. */ | 
|---|
| 668 | Uint16 attack_level;    /**< Level at the start of the attack. */ | 
|---|
| 669 | Uint16 fade_length;     /**< Duration of the fade. */ | 
|---|
| 670 | Uint16 fade_level;      /**< Level at the end of the fade. */ | 
|---|
| 671 | } SDL_HapticRamp; | 
|---|
| 672 |  | 
|---|
| 673 | /** | 
|---|
| 674 | * \brief A structure containing a template for a Left/Right effect. | 
|---|
| 675 | * | 
|---|
| 676 | * This struct is exclusively for the ::SDL_HAPTIC_LEFTRIGHT effect. | 
|---|
| 677 | * | 
|---|
| 678 | * The Left/Right effect is used to explicitly control the large and small | 
|---|
| 679 | * motors, commonly found in modern game controllers. The small (right) motor | 
|---|
| 680 | * is high frequency, and the large (left) motor is low frequency. | 
|---|
| 681 | * | 
|---|
| 682 | * \sa SDL_HAPTIC_LEFTRIGHT | 
|---|
| 683 | * \sa SDL_HapticEffect | 
|---|
| 684 | */ | 
|---|
| 685 | typedef struct SDL_HapticLeftRight | 
|---|
| 686 | { | 
|---|
| 687 | /* Header */ | 
|---|
| 688 | Uint16 type;            /**< ::SDL_HAPTIC_LEFTRIGHT */ | 
|---|
| 689 |  | 
|---|
| 690 | /* Replay */ | 
|---|
| 691 | Uint32 length;          /**< Duration of the effect in milliseconds. */ | 
|---|
| 692 |  | 
|---|
| 693 | /* Rumble */ | 
|---|
| 694 | Uint16 large_magnitude; /**< Control of the large controller motor. */ | 
|---|
| 695 | Uint16 small_magnitude; /**< Control of the small controller motor. */ | 
|---|
| 696 | } SDL_HapticLeftRight; | 
|---|
| 697 |  | 
|---|
| 698 | /** | 
|---|
| 699 | *  \brief A structure containing a template for the ::SDL_HAPTIC_CUSTOM effect. | 
|---|
| 700 | * | 
|---|
| 701 | *  This struct is exclusively for the ::SDL_HAPTIC_CUSTOM effect. | 
|---|
| 702 | * | 
|---|
| 703 | *  A custom force feedback effect is much like a periodic effect, where the | 
|---|
| 704 | *  application can define its exact shape.  You will have to allocate the | 
|---|
| 705 | *  data yourself.  Data should consist of channels * samples Uint16 samples. | 
|---|
| 706 | * | 
|---|
| 707 | *  If channels is one, the effect is rotated using the defined direction. | 
|---|
| 708 | *  Otherwise it uses the samples in data for the different axes. | 
|---|
| 709 | * | 
|---|
| 710 | *  \sa SDL_HAPTIC_CUSTOM | 
|---|
| 711 | *  \sa SDL_HapticEffect | 
|---|
| 712 | */ | 
|---|
| 713 | typedef struct SDL_HapticCustom | 
|---|
| 714 | { | 
|---|
| 715 | /* Header */ | 
|---|
| 716 | Uint16 type;            /**< ::SDL_HAPTIC_CUSTOM */ | 
|---|
| 717 | SDL_HapticDirection direction;  /**< Direction of the effect. */ | 
|---|
| 718 |  | 
|---|
| 719 | /* Replay */ | 
|---|
| 720 | Uint32 length;          /**< Duration of the effect. */ | 
|---|
| 721 | Uint16 delay;           /**< Delay before starting the effect. */ | 
|---|
| 722 |  | 
|---|
| 723 | /* Trigger */ | 
|---|
| 724 | Uint16 button;          /**< Button that triggers the effect. */ | 
|---|
| 725 | Uint16 interval;        /**< How soon it can be triggered again after button. */ | 
|---|
| 726 |  | 
|---|
| 727 | /* Custom */ | 
|---|
| 728 | Uint8 channels;         /**< Axes to use, minimum of one. */ | 
|---|
| 729 | Uint16 period;          /**< Sample periods. */ | 
|---|
| 730 | Uint16 samples;         /**< Amount of samples. */ | 
|---|
| 731 | Uint16 *data;           /**< Should contain channels*samples items. */ | 
|---|
| 732 |  | 
|---|
| 733 | /* Envelope */ | 
|---|
| 734 | Uint16 attack_length;   /**< Duration of the attack. */ | 
|---|
| 735 | Uint16 attack_level;    /**< Level at the start of the attack. */ | 
|---|
| 736 | Uint16 fade_length;     /**< Duration of the fade. */ | 
|---|
| 737 | Uint16 fade_level;      /**< Level at the end of the fade. */ | 
|---|
| 738 | } SDL_HapticCustom; | 
|---|
| 739 |  | 
|---|
| 740 | /** | 
|---|
| 741 | *  \brief The generic template for any haptic effect. | 
|---|
| 742 | * | 
|---|
| 743 | *  All values max at 32767 (0x7FFF).  Signed values also can be negative. | 
|---|
| 744 | *  Time values unless specified otherwise are in milliseconds. | 
|---|
| 745 | * | 
|---|
| 746 | *  You can also pass ::SDL_HAPTIC_INFINITY to length instead of a 0-32767 | 
|---|
| 747 | *  value.  Neither delay, interval, attack_length nor fade_length support | 
|---|
| 748 | *  ::SDL_HAPTIC_INFINITY.  Fade will also not be used since effect never ends. | 
|---|
| 749 | * | 
|---|
| 750 | *  Additionally, the ::SDL_HAPTIC_RAMP effect does not support a duration of | 
|---|
| 751 | *  ::SDL_HAPTIC_INFINITY. | 
|---|
| 752 | * | 
|---|
| 753 | *  Button triggers may not be supported on all devices, it is advised to not | 
|---|
| 754 | *  use them if possible.  Buttons start at index 1 instead of index 0 like | 
|---|
| 755 | *  the joystick. | 
|---|
| 756 | * | 
|---|
| 757 | *  If both attack_length and fade_level are 0, the envelope is not used, | 
|---|
| 758 | *  otherwise both values are used. | 
|---|
| 759 | * | 
|---|
| 760 | *  Common parts: | 
|---|
| 761 | *  \code | 
|---|
| 762 | *  // Replay - All effects have this | 
|---|
| 763 | *  Uint32 length;        // Duration of effect (ms). | 
|---|
| 764 | *  Uint16 delay;         // Delay before starting effect. | 
|---|
| 765 | * | 
|---|
| 766 | *  // Trigger - All effects have this | 
|---|
| 767 | *  Uint16 button;        // Button that triggers effect. | 
|---|
| 768 | *  Uint16 interval;      // How soon before effect can be triggered again. | 
|---|
| 769 | * | 
|---|
| 770 | *  // Envelope - All effects except condition effects have this | 
|---|
| 771 | *  Uint16 attack_length; // Duration of the attack (ms). | 
|---|
| 772 | *  Uint16 attack_level;  // Level at the start of the attack. | 
|---|
| 773 | *  Uint16 fade_length;   // Duration of the fade out (ms). | 
|---|
| 774 | *  Uint16 fade_level;    // Level at the end of the fade. | 
|---|
| 775 | *  \endcode | 
|---|
| 776 | * | 
|---|
| 777 | * | 
|---|
| 778 | *  Here we have an example of a constant effect evolution in time: | 
|---|
| 779 | *  \verbatim | 
|---|
| 780 | Strength | 
|---|
| 781 | ^ | 
|---|
| 782 | | | 
|---|
| 783 | |    effect level -->  _________________ | 
|---|
| 784 | |                     /                 \ | 
|---|
| 785 | |                    /                   \ | 
|---|
| 786 | |                   /                     \ | 
|---|
| 787 | |                  /                       \ | 
|---|
| 788 | | attack_level --> |                        \ | 
|---|
| 789 | |                  |                        |  <---  fade_level | 
|---|
| 790 | | | 
|---|
| 791 | +--------------------------------------------------> Time | 
|---|
| 792 | [--]                 [---] | 
|---|
| 793 | attack_length        fade_length | 
|---|
| 794 |  | 
|---|
| 795 | [------------------][-----------------------] | 
|---|
| 796 | delay               length | 
|---|
| 797 | \endverbatim | 
|---|
| 798 | * | 
|---|
| 799 | *  Note either the attack_level or the fade_level may be above the actual | 
|---|
| 800 | *  effect level. | 
|---|
| 801 | * | 
|---|
| 802 | *  \sa SDL_HapticConstant | 
|---|
| 803 | *  \sa SDL_HapticPeriodic | 
|---|
| 804 | *  \sa SDL_HapticCondition | 
|---|
| 805 | *  \sa SDL_HapticRamp | 
|---|
| 806 | *  \sa SDL_HapticLeftRight | 
|---|
| 807 | *  \sa SDL_HapticCustom | 
|---|
| 808 | */ | 
|---|
| 809 | typedef union SDL_HapticEffect | 
|---|
| 810 | { | 
|---|
| 811 | /* Common for all force feedback effects */ | 
|---|
| 812 | Uint16 type;                    /**< Effect type. */ | 
|---|
| 813 | SDL_HapticConstant constant;    /**< Constant effect. */ | 
|---|
| 814 | SDL_HapticPeriodic periodic;    /**< Periodic effect. */ | 
|---|
| 815 | SDL_HapticCondition condition;  /**< Condition effect. */ | 
|---|
| 816 | SDL_HapticRamp ramp;            /**< Ramp effect. */ | 
|---|
| 817 | SDL_HapticLeftRight leftright;  /**< Left/Right effect. */ | 
|---|
| 818 | SDL_HapticCustom custom;        /**< Custom effect. */ | 
|---|
| 819 | } SDL_HapticEffect; | 
|---|
| 820 |  | 
|---|
| 821 |  | 
|---|
| 822 | /* Function prototypes */ | 
|---|
| 823 |  | 
|---|
| 824 | /** | 
|---|
| 825 | * Count the number of haptic devices attached to the system. | 
|---|
| 826 | * | 
|---|
| 827 | * \returns the number of haptic devices detected on the system or a negative | 
|---|
| 828 | *          error code on failure; call SDL_GetError() for more information. | 
|---|
| 829 | * | 
|---|
| 830 | * \since This function is available since SDL 2.0.0. | 
|---|
| 831 | * | 
|---|
| 832 | * \sa SDL_HapticName | 
|---|
| 833 | */ | 
|---|
| 834 | extern DECLSPEC int SDLCALL SDL_NumHaptics(void); | 
|---|
| 835 |  | 
|---|
| 836 | /** | 
|---|
| 837 | * Get the implementation dependent name of a haptic device. | 
|---|
| 838 | * | 
|---|
| 839 | * This can be called before any joysticks are opened. If no name can be | 
|---|
| 840 | * found, this function returns NULL. | 
|---|
| 841 | * | 
|---|
| 842 | * \param device_index index of the device to query. | 
|---|
| 843 | * \returns the name of the device or NULL on failure; call SDL_GetError() for | 
|---|
| 844 | *          more information. | 
|---|
| 845 | * | 
|---|
| 846 | * \since This function is available since SDL 2.0.0. | 
|---|
| 847 | * | 
|---|
| 848 | * \sa SDL_NumHaptics | 
|---|
| 849 | */ | 
|---|
| 850 | extern DECLSPEC const char *SDLCALL SDL_HapticName(int device_index); | 
|---|
| 851 |  | 
|---|
| 852 | /** | 
|---|
| 853 | * Open a haptic device for use. | 
|---|
| 854 | * | 
|---|
| 855 | * The index passed as an argument refers to the N'th haptic device on this | 
|---|
| 856 | * system. | 
|---|
| 857 | * | 
|---|
| 858 | * When opening a haptic device, its gain will be set to maximum and | 
|---|
| 859 | * autocenter will be disabled. To modify these values use SDL_HapticSetGain() | 
|---|
| 860 | * and SDL_HapticSetAutocenter(). | 
|---|
| 861 | * | 
|---|
| 862 | * \param device_index index of the device to open | 
|---|
| 863 | * \returns the device identifier or NULL on failure; call SDL_GetError() for | 
|---|
| 864 | *          more information. | 
|---|
| 865 | * | 
|---|
| 866 | * \since This function is available since SDL 2.0.0. | 
|---|
| 867 | * | 
|---|
| 868 | * \sa SDL_HapticClose | 
|---|
| 869 | * \sa SDL_HapticIndex | 
|---|
| 870 | * \sa SDL_HapticOpenFromJoystick | 
|---|
| 871 | * \sa SDL_HapticOpenFromMouse | 
|---|
| 872 | * \sa SDL_HapticPause | 
|---|
| 873 | * \sa SDL_HapticSetAutocenter | 
|---|
| 874 | * \sa SDL_HapticSetGain | 
|---|
| 875 | * \sa SDL_HapticStopAll | 
|---|
| 876 | */ | 
|---|
| 877 | extern DECLSPEC SDL_Haptic *SDLCALL SDL_HapticOpen(int device_index); | 
|---|
| 878 |  | 
|---|
| 879 | /** | 
|---|
| 880 | * Check if the haptic device at the designated index has been opened. | 
|---|
| 881 | * | 
|---|
| 882 | * \param device_index the index of the device to query | 
|---|
| 883 | * \returns 1 if it has been opened, 0 if it hasn't or on failure; call | 
|---|
| 884 | *          SDL_GetError() for more information. | 
|---|
| 885 | * | 
|---|
| 886 | * \since This function is available since SDL 2.0.0. | 
|---|
| 887 | * | 
|---|
| 888 | * \sa SDL_HapticIndex | 
|---|
| 889 | * \sa SDL_HapticOpen | 
|---|
| 890 | */ | 
|---|
| 891 | extern DECLSPEC int SDLCALL SDL_HapticOpened(int device_index); | 
|---|
| 892 |  | 
|---|
| 893 | /** | 
|---|
| 894 | * Get the index of a haptic device. | 
|---|
| 895 | * | 
|---|
| 896 | * \param haptic the SDL_Haptic device to query | 
|---|
| 897 | * \returns the index of the specified haptic device or a negative error code | 
|---|
| 898 | *          on failure; call SDL_GetError() for more information. | 
|---|
| 899 | * | 
|---|
| 900 | * \since This function is available since SDL 2.0.0. | 
|---|
| 901 | * | 
|---|
| 902 | * \sa SDL_HapticOpen | 
|---|
| 903 | * \sa SDL_HapticOpened | 
|---|
| 904 | */ | 
|---|
| 905 | extern DECLSPEC int SDLCALL SDL_HapticIndex(SDL_Haptic * haptic); | 
|---|
| 906 |  | 
|---|
| 907 | /** | 
|---|
| 908 | * Query whether or not the current mouse has haptic capabilities. | 
|---|
| 909 | * | 
|---|
| 910 | * \returns SDL_TRUE if the mouse is haptic or SDL_FALSE if it isn't. | 
|---|
| 911 | * | 
|---|
| 912 | * \since This function is available since SDL 2.0.0. | 
|---|
| 913 | * | 
|---|
| 914 | * \sa SDL_HapticOpenFromMouse | 
|---|
| 915 | */ | 
|---|
| 916 | extern DECLSPEC int SDLCALL SDL_MouseIsHaptic(void); | 
|---|
| 917 |  | 
|---|
| 918 | /** | 
|---|
| 919 | * Try to open a haptic device from the current mouse. | 
|---|
| 920 | * | 
|---|
| 921 | * \returns the haptic device identifier or NULL on failure; call | 
|---|
| 922 | *          SDL_GetError() for more information. | 
|---|
| 923 | * | 
|---|
| 924 | * \since This function is available since SDL 2.0.0. | 
|---|
| 925 | * | 
|---|
| 926 | * \sa SDL_HapticOpen | 
|---|
| 927 | * \sa SDL_MouseIsHaptic | 
|---|
| 928 | */ | 
|---|
| 929 | extern DECLSPEC SDL_Haptic *SDLCALL SDL_HapticOpenFromMouse(void); | 
|---|
| 930 |  | 
|---|
| 931 | /** | 
|---|
| 932 | * Query if a joystick has haptic features. | 
|---|
| 933 | * | 
|---|
| 934 | * \param joystick the SDL_Joystick to test for haptic capabilities | 
|---|
| 935 | * \returns SDL_TRUE if the joystick is haptic, SDL_FALSE if it isn't, or a | 
|---|
| 936 | *          negative error code on failure; call SDL_GetError() for more | 
|---|
| 937 | *          information. | 
|---|
| 938 | * | 
|---|
| 939 | * \since This function is available since SDL 2.0.0. | 
|---|
| 940 | * | 
|---|
| 941 | * \sa SDL_HapticOpenFromJoystick | 
|---|
| 942 | */ | 
|---|
| 943 | extern DECLSPEC int SDLCALL SDL_JoystickIsHaptic(SDL_Joystick * joystick); | 
|---|
| 944 |  | 
|---|
| 945 | /** | 
|---|
| 946 | * Open a haptic device for use from a joystick device. | 
|---|
| 947 | * | 
|---|
| 948 | * You must still close the haptic device separately. It will not be closed | 
|---|
| 949 | * with the joystick. | 
|---|
| 950 | * | 
|---|
| 951 | * When opened from a joystick you should first close the haptic device before | 
|---|
| 952 | * closing the joystick device. If not, on some implementations the haptic | 
|---|
| 953 | * device will also get unallocated and you'll be unable to use force feedback | 
|---|
| 954 | * on that device. | 
|---|
| 955 | * | 
|---|
| 956 | * \param joystick the SDL_Joystick to create a haptic device from | 
|---|
| 957 | * \returns a valid haptic device identifier on success or NULL on failure; | 
|---|
| 958 | *          call SDL_GetError() for more information. | 
|---|
| 959 | * | 
|---|
| 960 | * \since This function is available since SDL 2.0.0. | 
|---|
| 961 | * | 
|---|
| 962 | * \sa SDL_HapticClose | 
|---|
| 963 | * \sa SDL_HapticOpen | 
|---|
| 964 | * \sa SDL_JoystickIsHaptic | 
|---|
| 965 | */ | 
|---|
| 966 | extern DECLSPEC SDL_Haptic *SDLCALL SDL_HapticOpenFromJoystick(SDL_Joystick * | 
|---|
| 967 | joystick); | 
|---|
| 968 |  | 
|---|
| 969 | /** | 
|---|
| 970 | * Close a haptic device previously opened with SDL_HapticOpen(). | 
|---|
| 971 | * | 
|---|
| 972 | * \param haptic the SDL_Haptic device to close | 
|---|
| 973 | * | 
|---|
| 974 | * \since This function is available since SDL 2.0.0. | 
|---|
| 975 | * | 
|---|
| 976 | * \sa SDL_HapticOpen | 
|---|
| 977 | */ | 
|---|
| 978 | extern DECLSPEC void SDLCALL SDL_HapticClose(SDL_Haptic * haptic); | 
|---|
| 979 |  | 
|---|
| 980 | /** | 
|---|
| 981 | * Get the number of effects a haptic device can store. | 
|---|
| 982 | * | 
|---|
| 983 | * On some platforms this isn't fully supported, and therefore is an | 
|---|
| 984 | * approximation. Always check to see if your created effect was actually | 
|---|
| 985 | * created and do not rely solely on SDL_HapticNumEffects(). | 
|---|
| 986 | * | 
|---|
| 987 | * \param haptic the SDL_Haptic device to query | 
|---|
| 988 | * \returns the number of effects the haptic device can store or a negative | 
|---|
| 989 | *          error code on failure; call SDL_GetError() for more information. | 
|---|
| 990 | * | 
|---|
| 991 | * \since This function is available since SDL 2.0.0. | 
|---|
| 992 | * | 
|---|
| 993 | * \sa SDL_HapticNumEffectsPlaying | 
|---|
| 994 | * \sa SDL_HapticQuery | 
|---|
| 995 | */ | 
|---|
| 996 | extern DECLSPEC int SDLCALL SDL_HapticNumEffects(SDL_Haptic * haptic); | 
|---|
| 997 |  | 
|---|
| 998 | /** | 
|---|
| 999 | * Get the number of effects a haptic device can play at the same time. | 
|---|
| 1000 | * | 
|---|
| 1001 | * This is not supported on all platforms, but will always return a value. | 
|---|
| 1002 | * | 
|---|
| 1003 | * \param haptic the SDL_Haptic device to query maximum playing effects | 
|---|
| 1004 | * \returns the number of effects the haptic device can play at the same time | 
|---|
| 1005 | *          or a negative error code on failure; call SDL_GetError() for more | 
|---|
| 1006 | *          information. | 
|---|
| 1007 | * | 
|---|
| 1008 | * \since This function is available since SDL 2.0.0. | 
|---|
| 1009 | * | 
|---|
| 1010 | * \sa SDL_HapticNumEffects | 
|---|
| 1011 | * \sa SDL_HapticQuery | 
|---|
| 1012 | */ | 
|---|
| 1013 | extern DECLSPEC int SDLCALL SDL_HapticNumEffectsPlaying(SDL_Haptic * haptic); | 
|---|
| 1014 |  | 
|---|
| 1015 | /** | 
|---|
| 1016 | * Get the haptic device's supported features in bitwise manner. | 
|---|
| 1017 | * | 
|---|
| 1018 | * \param haptic the SDL_Haptic device to query | 
|---|
| 1019 | * \returns a list of supported haptic features in bitwise manner (OR'd), or 0 | 
|---|
| 1020 | *          on failure; call SDL_GetError() for more information. | 
|---|
| 1021 | * | 
|---|
| 1022 | * \since This function is available since SDL 2.0.0. | 
|---|
| 1023 | * | 
|---|
| 1024 | * \sa SDL_HapticEffectSupported | 
|---|
| 1025 | * \sa SDL_HapticNumEffects | 
|---|
| 1026 | */ | 
|---|
| 1027 | extern DECLSPEC unsigned int SDLCALL SDL_HapticQuery(SDL_Haptic * haptic); | 
|---|
| 1028 |  | 
|---|
| 1029 |  | 
|---|
| 1030 | /** | 
|---|
| 1031 | * Get the number of haptic axes the device has. | 
|---|
| 1032 | * | 
|---|
| 1033 | * The number of haptic axes might be useful if working with the | 
|---|
| 1034 | * SDL_HapticDirection effect. | 
|---|
| 1035 | * | 
|---|
| 1036 | * \param haptic the SDL_Haptic device to query | 
|---|
| 1037 | * \returns the number of axes on success or a negative error code on failure; | 
|---|
| 1038 | *          call SDL_GetError() for more information. | 
|---|
| 1039 | * | 
|---|
| 1040 | * \since This function is available since SDL 2.0.0. | 
|---|
| 1041 | */ | 
|---|
| 1042 | extern DECLSPEC int SDLCALL SDL_HapticNumAxes(SDL_Haptic * haptic); | 
|---|
| 1043 |  | 
|---|
| 1044 | /** | 
|---|
| 1045 | * Check to see if an effect is supported by a haptic device. | 
|---|
| 1046 | * | 
|---|
| 1047 | * \param haptic the SDL_Haptic device to query | 
|---|
| 1048 | * \param effect the desired effect to query | 
|---|
| 1049 | * \returns SDL_TRUE if effect is supported, SDL_FALSE if it isn't, or a | 
|---|
| 1050 | *          negative error code on failure; call SDL_GetError() for more | 
|---|
| 1051 | *          information. | 
|---|
| 1052 | * | 
|---|
| 1053 | * \since This function is available since SDL 2.0.0. | 
|---|
| 1054 | * | 
|---|
| 1055 | * \sa SDL_HapticNewEffect | 
|---|
| 1056 | * \sa SDL_HapticQuery | 
|---|
| 1057 | */ | 
|---|
| 1058 | extern DECLSPEC int SDLCALL SDL_HapticEffectSupported(SDL_Haptic * haptic, | 
|---|
| 1059 | SDL_HapticEffect * | 
|---|
| 1060 | effect); | 
|---|
| 1061 |  | 
|---|
| 1062 | /** | 
|---|
| 1063 | * Create a new haptic effect on a specified device. | 
|---|
| 1064 | * | 
|---|
| 1065 | * \param haptic an SDL_Haptic device to create the effect on | 
|---|
| 1066 | * \param effect an SDL_HapticEffect structure containing the properties of | 
|---|
| 1067 | *               the effect to create | 
|---|
| 1068 | * \returns the ID of the effect on success or a negative error code on | 
|---|
| 1069 | *          failure; call SDL_GetError() for more information. | 
|---|
| 1070 | * | 
|---|
| 1071 | * \since This function is available since SDL 2.0.0. | 
|---|
| 1072 | * | 
|---|
| 1073 | * \sa SDL_HapticDestroyEffect | 
|---|
| 1074 | * \sa SDL_HapticRunEffect | 
|---|
| 1075 | * \sa SDL_HapticUpdateEffect | 
|---|
| 1076 | */ | 
|---|
| 1077 | extern DECLSPEC int SDLCALL SDL_HapticNewEffect(SDL_Haptic * haptic, | 
|---|
| 1078 | SDL_HapticEffect * effect); | 
|---|
| 1079 |  | 
|---|
| 1080 | /** | 
|---|
| 1081 | * Update the properties of an effect. | 
|---|
| 1082 | * | 
|---|
| 1083 | * Can be used dynamically, although behavior when dynamically changing | 
|---|
| 1084 | * direction may be strange. Specifically the effect may re-upload itself and | 
|---|
| 1085 | * start playing from the start. You also cannot change the type either when | 
|---|
| 1086 | * running SDL_HapticUpdateEffect(). | 
|---|
| 1087 | * | 
|---|
| 1088 | * \param haptic the SDL_Haptic device that has the effect | 
|---|
| 1089 | * \param effect the identifier of the effect to update | 
|---|
| 1090 | * \param data an SDL_HapticEffect structure containing the new effect | 
|---|
| 1091 | *             properties to use | 
|---|
| 1092 | * \returns 0 on success or a negative error code on failure; call | 
|---|
| 1093 | *          SDL_GetError() for more information. | 
|---|
| 1094 | * | 
|---|
| 1095 | * \since This function is available since SDL 2.0.0. | 
|---|
| 1096 | * | 
|---|
| 1097 | * \sa SDL_HapticDestroyEffect | 
|---|
| 1098 | * \sa SDL_HapticNewEffect | 
|---|
| 1099 | * \sa SDL_HapticRunEffect | 
|---|
| 1100 | */ | 
|---|
| 1101 | extern DECLSPEC int SDLCALL SDL_HapticUpdateEffect(SDL_Haptic * haptic, | 
|---|
| 1102 | int effect, | 
|---|
| 1103 | SDL_HapticEffect * data); | 
|---|
| 1104 |  | 
|---|
| 1105 | /** | 
|---|
| 1106 | * Run the haptic effect on its associated haptic device. | 
|---|
| 1107 | * | 
|---|
| 1108 | * To repeat the effect over and over indefinitely, set `iterations` to | 
|---|
| 1109 | * `SDL_HAPTIC_INFINITY`. (Repeats the envelope - attack and fade.) To make | 
|---|
| 1110 | * one instance of the effect last indefinitely (so the effect does not fade), | 
|---|
| 1111 | * set the effect's `length` in its structure/union to `SDL_HAPTIC_INFINITY` | 
|---|
| 1112 | * instead. | 
|---|
| 1113 | * | 
|---|
| 1114 | * \param haptic the SDL_Haptic device to run the effect on | 
|---|
| 1115 | * \param effect the ID of the haptic effect to run | 
|---|
| 1116 | * \param iterations the number of iterations to run the effect; use | 
|---|
| 1117 | *                   `SDL_HAPTIC_INFINITY` to repeat forever | 
|---|
| 1118 | * \returns 0 on success or a negative error code on failure; call | 
|---|
| 1119 | *          SDL_GetError() for more information. | 
|---|
| 1120 | * | 
|---|
| 1121 | * \since This function is available since SDL 2.0.0. | 
|---|
| 1122 | * | 
|---|
| 1123 | * \sa SDL_HapticDestroyEffect | 
|---|
| 1124 | * \sa SDL_HapticGetEffectStatus | 
|---|
| 1125 | * \sa SDL_HapticStopEffect | 
|---|
| 1126 | */ | 
|---|
| 1127 | extern DECLSPEC int SDLCALL SDL_HapticRunEffect(SDL_Haptic * haptic, | 
|---|
| 1128 | int effect, | 
|---|
| 1129 | Uint32 iterations); | 
|---|
| 1130 |  | 
|---|
| 1131 | /** | 
|---|
| 1132 | * Stop the haptic effect on its associated haptic device. | 
|---|
| 1133 | * | 
|---|
| 1134 | * * | 
|---|
| 1135 | * | 
|---|
| 1136 | * \param haptic the SDL_Haptic device to stop the effect on | 
|---|
| 1137 | * \param effect the ID of the haptic effect to stop | 
|---|
| 1138 | * \returns 0 on success or a negative error code on failure; call | 
|---|
| 1139 | *          SDL_GetError() for more information. | 
|---|
| 1140 | * | 
|---|
| 1141 | * \since This function is available since SDL 2.0.0. | 
|---|
| 1142 | * | 
|---|
| 1143 | * \sa SDL_HapticDestroyEffect | 
|---|
| 1144 | * \sa SDL_HapticRunEffect | 
|---|
| 1145 | */ | 
|---|
| 1146 | extern DECLSPEC int SDLCALL SDL_HapticStopEffect(SDL_Haptic * haptic, | 
|---|
| 1147 | int effect); | 
|---|
| 1148 |  | 
|---|
| 1149 | /** | 
|---|
| 1150 | * Destroy a haptic effect on the device. | 
|---|
| 1151 | * | 
|---|
| 1152 | * This will stop the effect if it's running. Effects are automatically | 
|---|
| 1153 | * destroyed when the device is closed. | 
|---|
| 1154 | * | 
|---|
| 1155 | * \param haptic the SDL_Haptic device to destroy the effect on | 
|---|
| 1156 | * \param effect the ID of the haptic effect to destroy | 
|---|
| 1157 | * | 
|---|
| 1158 | * \since This function is available since SDL 2.0.0. | 
|---|
| 1159 | * | 
|---|
| 1160 | * \sa SDL_HapticNewEffect | 
|---|
| 1161 | */ | 
|---|
| 1162 | extern DECLSPEC void SDLCALL SDL_HapticDestroyEffect(SDL_Haptic * haptic, | 
|---|
| 1163 | int effect); | 
|---|
| 1164 |  | 
|---|
| 1165 | /** | 
|---|
| 1166 | * Get the status of the current effect on the specified haptic device. | 
|---|
| 1167 | * | 
|---|
| 1168 | * Device must support the SDL_HAPTIC_STATUS feature. | 
|---|
| 1169 | * | 
|---|
| 1170 | * \param haptic the SDL_Haptic device to query for the effect status on | 
|---|
| 1171 | * \param effect the ID of the haptic effect to query its status | 
|---|
| 1172 | * \returns 0 if it isn't playing, 1 if it is playing, or a negative error | 
|---|
| 1173 | *          code on failure; call SDL_GetError() for more information. | 
|---|
| 1174 | * | 
|---|
| 1175 | * \since This function is available since SDL 2.0.0. | 
|---|
| 1176 | * | 
|---|
| 1177 | * \sa SDL_HapticRunEffect | 
|---|
| 1178 | * \sa SDL_HapticStopEffect | 
|---|
| 1179 | */ | 
|---|
| 1180 | extern DECLSPEC int SDLCALL SDL_HapticGetEffectStatus(SDL_Haptic * haptic, | 
|---|
| 1181 | int effect); | 
|---|
| 1182 |  | 
|---|
| 1183 | /** | 
|---|
| 1184 | * Set the global gain of the specified haptic device. | 
|---|
| 1185 | * | 
|---|
| 1186 | * Device must support the SDL_HAPTIC_GAIN feature. | 
|---|
| 1187 | * | 
|---|
| 1188 | * The user may specify the maximum gain by setting the environment variable | 
|---|
| 1189 | * `SDL_HAPTIC_GAIN_MAX` which should be between 0 and 100. All calls to | 
|---|
| 1190 | * SDL_HapticSetGain() will scale linearly using `SDL_HAPTIC_GAIN_MAX` as the | 
|---|
| 1191 | * maximum. | 
|---|
| 1192 | * | 
|---|
| 1193 | * \param haptic the SDL_Haptic device to set the gain on | 
|---|
| 1194 | * \param gain value to set the gain to, should be between 0 and 100 (0 - 100) | 
|---|
| 1195 | * \returns 0 on success or a negative error code on failure; call | 
|---|
| 1196 | *          SDL_GetError() for more information. | 
|---|
| 1197 | * | 
|---|
| 1198 | * \since This function is available since SDL 2.0.0. | 
|---|
| 1199 | * | 
|---|
| 1200 | * \sa SDL_HapticQuery | 
|---|
| 1201 | */ | 
|---|
| 1202 | extern DECLSPEC int SDLCALL SDL_HapticSetGain(SDL_Haptic * haptic, int gain); | 
|---|
| 1203 |  | 
|---|
| 1204 | /** | 
|---|
| 1205 | * Set the global autocenter of the device. | 
|---|
| 1206 | * | 
|---|
| 1207 | * Autocenter should be between 0 and 100. Setting it to 0 will disable | 
|---|
| 1208 | * autocentering. | 
|---|
| 1209 | * | 
|---|
| 1210 | * Device must support the SDL_HAPTIC_AUTOCENTER feature. | 
|---|
| 1211 | * | 
|---|
| 1212 | * \param haptic the SDL_Haptic device to set autocentering on | 
|---|
| 1213 | * \param autocenter value to set autocenter to (0-100) | 
|---|
| 1214 | * \returns 0 on success or a negative error code on failure; call | 
|---|
| 1215 | *          SDL_GetError() for more information. | 
|---|
| 1216 | * | 
|---|
| 1217 | * \since This function is available since SDL 2.0.0. | 
|---|
| 1218 | * | 
|---|
| 1219 | * \sa SDL_HapticQuery | 
|---|
| 1220 | */ | 
|---|
| 1221 | extern DECLSPEC int SDLCALL SDL_HapticSetAutocenter(SDL_Haptic * haptic, | 
|---|
| 1222 | int autocenter); | 
|---|
| 1223 |  | 
|---|
| 1224 | /** | 
|---|
| 1225 | * Pause a haptic device. | 
|---|
| 1226 | * | 
|---|
| 1227 | * Device must support the `SDL_HAPTIC_PAUSE` feature. Call | 
|---|
| 1228 | * SDL_HapticUnpause() to resume playback. | 
|---|
| 1229 | * | 
|---|
| 1230 | * Do not modify the effects nor add new ones while the device is paused. That | 
|---|
| 1231 | * can cause all sorts of weird errors. | 
|---|
| 1232 | * | 
|---|
| 1233 | * \param haptic the SDL_Haptic device to pause | 
|---|
| 1234 | * \returns 0 on success or a negative error code on failure; call | 
|---|
| 1235 | *          SDL_GetError() for more information. | 
|---|
| 1236 | * | 
|---|
| 1237 | * \since This function is available since SDL 2.0.0. | 
|---|
| 1238 | * | 
|---|
| 1239 | * \sa SDL_HapticUnpause | 
|---|
| 1240 | */ | 
|---|
| 1241 | extern DECLSPEC int SDLCALL SDL_HapticPause(SDL_Haptic * haptic); | 
|---|
| 1242 |  | 
|---|
| 1243 | /** | 
|---|
| 1244 | * Unpause a haptic device. | 
|---|
| 1245 | * | 
|---|
| 1246 | * Call to unpause after SDL_HapticPause(). | 
|---|
| 1247 | * | 
|---|
| 1248 | * \param haptic the SDL_Haptic device to unpause | 
|---|
| 1249 | * \returns 0 on success or a negative error code on failure; call | 
|---|
| 1250 | *          SDL_GetError() for more information. | 
|---|
| 1251 | * | 
|---|
| 1252 | * \since This function is available since SDL 2.0.0. | 
|---|
| 1253 | * | 
|---|
| 1254 | * \sa SDL_HapticPause | 
|---|
| 1255 | */ | 
|---|
| 1256 | extern DECLSPEC int SDLCALL SDL_HapticUnpause(SDL_Haptic * haptic); | 
|---|
| 1257 |  | 
|---|
| 1258 | /** | 
|---|
| 1259 | * Stop all the currently playing effects on a haptic device. | 
|---|
| 1260 | * | 
|---|
| 1261 | * \param haptic the SDL_Haptic device to stop | 
|---|
| 1262 | * \returns 0 on success or a negative error code on failure; call | 
|---|
| 1263 | *          SDL_GetError() for more information. | 
|---|
| 1264 | * | 
|---|
| 1265 | * \since This function is available since SDL 2.0.0. | 
|---|
| 1266 | */ | 
|---|
| 1267 | extern DECLSPEC int SDLCALL SDL_HapticStopAll(SDL_Haptic * haptic); | 
|---|
| 1268 |  | 
|---|
| 1269 | /** | 
|---|
| 1270 | * Check whether rumble is supported on a haptic device. | 
|---|
| 1271 | * | 
|---|
| 1272 | * \param haptic haptic device to check for rumble support | 
|---|
| 1273 | * \returns SDL_TRUE if effect is supported, SDL_FALSE if it isn't, or a | 
|---|
| 1274 | *          negative error code on failure; call SDL_GetError() for more | 
|---|
| 1275 | *          information. | 
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| 1276 | * | 
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| 1277 | * \since This function is available since SDL 2.0.0. | 
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| 1278 | * | 
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| 1279 | * \sa SDL_HapticRumbleInit | 
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| 1280 | * \sa SDL_HapticRumblePlay | 
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| 1281 | * \sa SDL_HapticRumbleStop | 
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| 1282 | */ | 
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| 1283 | extern DECLSPEC int SDLCALL SDL_HapticRumbleSupported(SDL_Haptic * haptic); | 
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| 1284 |  | 
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| 1285 | /** | 
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| 1286 | * Initialize a haptic device for simple rumble playback. | 
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| 1287 | * | 
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| 1288 | * \param haptic the haptic device to initialize for simple rumble playback | 
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| 1289 | * \returns 0 on success or a negative error code on failure; call | 
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| 1290 | *          SDL_GetError() for more information. | 
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| 1291 | * | 
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| 1292 | * \since This function is available since SDL 2.0.0. | 
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| 1293 | * | 
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| 1294 | * \sa SDL_HapticOpen | 
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| 1295 | * \sa SDL_HapticRumblePlay | 
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| 1296 | * \sa SDL_HapticRumbleStop | 
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| 1297 | * \sa SDL_HapticRumbleSupported | 
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| 1298 | */ | 
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| 1299 | extern DECLSPEC int SDLCALL SDL_HapticRumbleInit(SDL_Haptic * haptic); | 
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| 1300 |  | 
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| 1301 | /** | 
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| 1302 | * Run a simple rumble effect on a haptic device. | 
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| 1303 | * | 
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| 1304 | * \param haptic the haptic device to play the rumble effect on | 
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| 1305 | * \param strength strength of the rumble to play as a 0-1 float value | 
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| 1306 | * \param length length of the rumble to play in milliseconds | 
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| 1307 | * \returns 0 on success or a negative error code on failure; call | 
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| 1308 | *          SDL_GetError() for more information. | 
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| 1309 | * | 
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| 1310 | * \since This function is available since SDL 2.0.0. | 
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| 1311 | * | 
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| 1312 | * \sa SDL_HapticRumbleInit | 
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| 1313 | * \sa SDL_HapticRumbleStop | 
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| 1314 | * \sa SDL_HapticRumbleSupported | 
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| 1315 | */ | 
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| 1316 | extern DECLSPEC int SDLCALL SDL_HapticRumblePlay(SDL_Haptic * haptic, float strength, Uint32 length ); | 
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| 1317 |  | 
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| 1318 | /** | 
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| 1319 | * Stop the simple rumble on a haptic device. | 
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| 1320 | * | 
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| 1321 | * \param haptic the haptic device to stop the rumble effect on | 
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| 1322 | * \returns 0 on success or a negative error code on failure; call | 
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| 1323 | *          SDL_GetError() for more information. | 
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| 1324 | * | 
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| 1325 | * \since This function is available since SDL 2.0.0. | 
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| 1326 | * | 
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| 1327 | * \sa SDL_HapticRumbleInit | 
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| 1328 | * \sa SDL_HapticRumblePlay | 
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| 1329 | * \sa SDL_HapticRumbleSupported | 
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| 1330 | */ | 
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| 1331 | extern DECLSPEC int SDLCALL SDL_HapticRumbleStop(SDL_Haptic * haptic); | 
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| 1332 |  | 
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| 1333 | /* Ends C function definitions when using C++ */ | 
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| 1334 | #ifdef __cplusplus | 
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| 1335 | } | 
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| 1336 | #endif | 
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| 1337 | #include "close_code.h" | 
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| 1338 |  | 
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| 1339 | #endif /* SDL_haptic_h_ */ | 
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| 1340 |  | 
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| 1341 | /* vi: set ts=4 sw=4 expandtab: */ | 
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| 1342 |  | 
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