Atlas - SDL_windowsjoystick_c.h
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[FILE BEGIN]
1/*
2  Simple DirectMedia Layer
3  Copyright (C) 1997-2025 Sam Lantinga <[email protected]>
4
5  This software is provided 'as-is', without any express or implied
6  warranty.  In no event will the authors be held liable for any damages
7  arising from the use of this software.
8
9  Permission is granted to anyone to use this software for any purpose,
10  including commercial applications, and to alter it and redistribute it
11  freely, subject to the following restrictions:
12
13  1. The origin of this software must not be misrepresented; you must not
14     claim that you wrote the original software. If you use this software
15     in a product, an acknowledgment in the product documentation would be
16     appreciated but is not required.
17  2. Altered source versions must be plainly marked as such, and must not be
18     misrepresented as being the original software.
19  3. This notice may not be removed or altered from any source distribution.
20*/
21#include "SDL_internal.h"
22
23#include "../SDL_sysjoystick.h"
24#include "../../core/windows/SDL_windows.h"
25#include "../../core/windows/SDL_directx.h"
26
27#define MAX_INPUTS 256 // each joystick can have up to 256 inputs
28
29// Set up for C function definitions, even when using C++
30#ifdef __cplusplus
31extern "C" {
32#endif
33
34typedef struct JoyStick_DeviceData
35{
36    SDL_GUID guid;
37    char *joystickname;
38    Uint8 send_add_event;
39    SDL_JoystickID nInstanceID;
40#ifdef SDL_JOYSTICK_XINPUT
41    bool bXInputDevice;
42    BYTE SubType;
43    Uint8 XInputUserId;
44#endif
45    DIDEVICEINSTANCE dxdevice;
46    char path[MAX_PATH];
47    int steam_virtual_gamepad_slot;
48    struct JoyStick_DeviceData *pNext;
49} JoyStick_DeviceData;
50
51extern JoyStick_DeviceData *SYS_Joystick; // array to hold joystick ID values
52
53typedef enum Type
54{
55    BUTTON,
56    AXIS,
57    HAT
58} Type;
59
60typedef struct input_t
61{
62    // DirectInput offset for this input type:
63    DWORD ofs;
64
65    // Button, axis or hat:
66    Type type;
67
68    // SDL input offset:
69    Uint8 num;
70} input_t;
71
72// The private structure used to keep track of a joystick
73struct joystick_hwdata
74{
75    SDL_GUID guid;
76
77#ifdef SDL_JOYSTICK_DINPUT
78    LPDIRECTINPUTDEVICE8 InputDevice;
79    DIDEVCAPS Capabilities;
80    bool buffered;
81    bool first_update;
82    input_t Inputs[MAX_INPUTS];
83    int NumInputs;
84    int NumSliders;
85    bool ff_initialized;
86    DIEFFECT *ffeffect;
87    LPDIRECTINPUTEFFECT ffeffect_ref;
88#endif
89
90#ifdef SDL_JOYSTICK_XINPUT
91    bool bXInputDevice; // true if this device supports using the xinput API rather than DirectInput
92    bool bXInputHaptic; // Supports force feedback via XInput.
93    Uint8 userid;           // XInput userid index for this joystick
94    DWORD dwPacketNumber;
95#endif
96};
97
98#ifdef SDL_JOYSTICK_DINPUT
99extern const DIDATAFORMAT SDL_c_dfDIJoystick2;
100#endif
101
102extern void WINDOWS_AddJoystickDevice(JoyStick_DeviceData *device);
103
104// Ends C function definitions when using C++
105#ifdef __cplusplus
106}
107#endif
108
[FILE END]
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