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@@ -0,0 +1,415 @@
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+/*
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+ Simple DirectMedia Layer
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+ Copyright (C) 1997-2024 Sam Lantinga <slouken@libsdl.org>
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+
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+ This software is provided 'as-is', without any express or implied
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+ warranty. In no event will the authors be held liable for any damages
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+ arising from the use of this software.
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+
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+ Permission is granted to anyone to use this software for any purpose,
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+ including commercial applications, and to alter it and redistribute it
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+ freely, subject to the following restrictions:
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+
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+ 1. The origin of this software must not be misrepresented; you must not
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+ claim that you wrote the original software. If you use this software
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+ in a product, an acknowledgment in the product documentation would be
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+ appreciated but is not required.
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+ 2. Altered source versions must be plainly marked as such, and must not be
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+ misrepresented as being the original software.
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+ 3. This notice may not be removed or altered from any source distribution.
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+*/
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+#include "SDL_internal.h"
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+
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+#ifdef SDL_JOYSTICK_HIDAPI
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+
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+#include "../SDL_sysjoystick.h"
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+#include "SDL_hidapijoystick_c.h"
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+#include "SDL_hidapi_rumble.h"
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+#include "../SDL_joystick_c.h"
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+
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+#ifdef SDL_JOYSTICK_HIDAPI_STEAM_HORI
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+
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+/* Define this if you want to log all packets from the controller */
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+/*#define DEBUG_HORI_PROTOCOL*/
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+
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+#define LOAD16(A, B) (Sint16)((Uint16)(A) | (((Uint16)(B)) << 8))
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+
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+enum
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+{
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+ SDL_GAMEPAD_BUTTON_HORI_QAM = 11,
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+ SDL_GAMEPAD_BUTTON_HORI_FR,
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+ SDL_GAMEPAD_BUTTON_HORI_FL,
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+ SDL_GAMEPAD_BUTTON_HORI_M1,
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+ SDL_GAMEPAD_BUTTON_HORI_M2,
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+ SDL_GAMEPAD_BUTTON_HORI_JOYSTICK_TOUCH_L,
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+ SDL_GAMEPAD_BUTTON_HORI_JOYSTICK_TOUCH_R,
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+ SDL_GAMEPAD_NUM_HORI_BUTTONS
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+};
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+
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+typedef struct
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+{
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+ Uint8 last_state[USB_PACKET_LENGTH];
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+ Uint64 sensor_ticks;
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+ Uint32 last_tick;
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+ bool wireless;
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+ bool serial_needs_init;
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+} SDL_DriverSteamHori_Context;
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+
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+static bool HIDAPI_DriverSteamHori_UpdateDevice(SDL_HIDAPI_Device *device);
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+
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+static void HIDAPI_DriverSteamHori_RegisterHints(SDL_HintCallback callback, void *userdata)
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+{
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+ SDL_AddHintCallback(SDL_HINT_JOYSTICK_HIDAPI_STEAM_HORI, callback, userdata);
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+}
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+
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+static void HIDAPI_DriverSteamHori_UnregisterHints(SDL_HintCallback callback, void *userdata)
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+{
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+ SDL_RemoveHintCallback(SDL_HINT_JOYSTICK_HIDAPI_STEAM_HORI, callback, userdata);
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+}
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+
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+static bool HIDAPI_DriverSteamHori_IsEnabled(void)
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+{
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+ return SDL_GetHintBoolean(SDL_HINT_JOYSTICK_HIDAPI_STEAM_HORI, SDL_GetHintBoolean(SDL_HINT_JOYSTICK_HIDAPI, SDL_HIDAPI_DEFAULT));
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+}
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+
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+static bool HIDAPI_DriverSteamHori_IsSupportedDevice(SDL_HIDAPI_Device *device, const char *name, SDL_GamepadType type, Uint16 vendor_id, Uint16 product_id, Uint16 version, int interface_number, int interface_class, int interface_subclass, int interface_protocol)
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+{
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+ return SDL_IsJoystickHoriSteamController(vendor_id, product_id);
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+}
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+
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+static bool HIDAPI_DriverSteamHori_InitDevice(SDL_HIDAPI_Device *device)
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+{
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+ SDL_DriverSteamHori_Context *ctx;
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+
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+ ctx = (SDL_DriverSteamHori_Context *)SDL_calloc(1, sizeof(*ctx));
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+ if (!ctx) {
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+ return false;
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+ }
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+
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+ device->context = ctx;
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+ ctx->serial_needs_init = true;
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+
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+ HIDAPI_SetDeviceName(device, "Wireless HORIPAD For Steam");
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+
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+ return HIDAPI_JoystickConnected(device, NULL);
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+}
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+
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+static int HIDAPI_DriverSteamHori_GetDevicePlayerIndex(SDL_HIDAPI_Device *device, SDL_JoystickID instance_id)
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+{
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+ return -1;
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+}
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+
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+static void HIDAPI_DriverSteamHori_SetDevicePlayerIndex(SDL_HIDAPI_Device *device, SDL_JoystickID instance_id, int player_index)
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+{
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+}
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+
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+static bool HIDAPI_DriverSteamHori_OpenJoystick(SDL_HIDAPI_Device *device, SDL_Joystick *joystick)
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+{
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+ SDL_DriverSteamHori_Context *ctx = (SDL_DriverSteamHori_Context *)device->context;
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+
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+ SDL_AssertJoysticksLocked();
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+
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+ SDL_zeroa(ctx->last_state);
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+
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+ /* Initialize the joystick capabilities */
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+ joystick->nbuttons = SDL_GAMEPAD_NUM_HORI_BUTTONS;
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+ joystick->naxes = SDL_GAMEPAD_AXIS_COUNT;
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+ joystick->nhats = 1;
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+
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+ ctx->wireless = device->product_id == USB_PRODUCT_HORI_STEAM_CONTROLLER_BT;
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+
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+ if (ctx->wireless && device->serial) {
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+ joystick->serial = SDL_strdup(device->serial);
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+ ctx->serial_needs_init = false;
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+ } else if (!ctx->wireless) {
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+ // Need to actual read from the device to init the serial
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+ HIDAPI_DriverSteamHori_UpdateDevice(device);
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+ }
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+
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+ SDL_PrivateJoystickAddSensor(joystick, SDL_SENSOR_GYRO, 250.0f);
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+ SDL_PrivateJoystickAddSensor(joystick, SDL_SENSOR_ACCEL, 250.0f);
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+
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+ return true;
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+}
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+
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+static bool HIDAPI_DriverSteamHori_RumbleJoystick(SDL_HIDAPI_Device *device, SDL_Joystick *joystick, Uint16 low_frequency_rumble, Uint16 high_frequency_rumble)
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+{
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+ // Device doesn't support rumble
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+ return SDL_Unsupported();
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+}
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+
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+static bool HIDAPI_DriverSteamHori_RumbleJoystickTriggers(SDL_HIDAPI_Device *device, SDL_Joystick *joystick, Uint16 left_rumble, Uint16 right_rumble)
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+{
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+ return SDL_Unsupported();
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+}
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+
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+static Uint32 HIDAPI_DriverSteamHori_GetJoystickCapabilities(SDL_HIDAPI_Device *device, SDL_Joystick *joystick)
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+{
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+ return 0;
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+}
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+
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+static bool HIDAPI_DriverSteamHori_SetJoystickLED(SDL_HIDAPI_Device *device, SDL_Joystick *joystick, Uint8 red, Uint8 green, Uint8 blue)
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+{
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+ return SDL_Unsupported();
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+}
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+
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+static bool HIDAPI_DriverSteamHori_SendJoystickEffect(SDL_HIDAPI_Device *device, SDL_Joystick *joystick, const void *data, int size)
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+{
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+ return SDL_Unsupported();
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+}
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+
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+static bool HIDAPI_DriverSteamHori_SetJoystickSensorsEnabled(SDL_HIDAPI_Device *device, SDL_Joystick *joystick, bool enabled)
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+{
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+ return true;
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+}
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+
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+#undef clamp
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+#define clamp(val, min, max) (((val) > (max)) ? (max) : (((val) < (min)) ? (min) : (val)))
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+
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+#ifndef DEG2RAD
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+#define DEG2RAD(x) ((float)(x) * (float)(SDL_PI_F / 180.f))
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+#endif
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+
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+//---------------------------------------------------------------------------
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+// Scale and clamp values to a range
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+//---------------------------------------------------------------------------
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+static float RemapValClamped(float val, float A, float B, float C, float D)
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+{
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+ if (A == B) {
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+ return (val - B) >= 0.0f ? D : C;
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+ } else {
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+ float cVal = (val - A) / (B - A);
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+ cVal = clamp(cVal, 0.0f, 1.0f);
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+
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+ return C + (D - C) * cVal;
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+ }
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+}
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+
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+#define REPORT_HEADER_USB 0x07
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+#define REPORT_HEADER_BT 0x00
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+
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+static void HIDAPI_DriverSteamHori_HandleStatePacket(SDL_Joystick *joystick, SDL_DriverSteamHori_Context *ctx, Uint8 *data, int size)
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+{
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+ Sint16 axis;
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+ Uint64 timestamp = SDL_GetTicksNS();
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+
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+ // Make sure it's gamepad state and not OTA FW update info
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+ if (data[0] != REPORT_HEADER_USB && data[0] != REPORT_HEADER_BT) {
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+ /* We don't know how to handle this report */
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+ return;
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+ }
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+
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+ #define READ_STICK_AXIS(offset) \
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+ (data[offset] == 0x80 ? 0 : (Sint16)HIDAPI_RemapVal((float)((int)data[offset] - 0x80), -0x80, 0xff - 0x80, SDL_MIN_SINT16, SDL_MAX_SINT16))
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+ {
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+ axis = READ_STICK_AXIS(1);
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+ SDL_SendJoystickAxis(timestamp, joystick, SDL_GAMEPAD_AXIS_LEFTX, axis);
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+ axis = READ_STICK_AXIS(2);
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+ SDL_SendJoystickAxis(timestamp, joystick, SDL_GAMEPAD_AXIS_LEFTY, axis);
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+ axis = READ_STICK_AXIS(3);
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+ SDL_SendJoystickAxis(timestamp, joystick, SDL_GAMEPAD_AXIS_RIGHTX, axis);
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+ axis = READ_STICK_AXIS(4);
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+ SDL_SendJoystickAxis(timestamp, joystick, SDL_GAMEPAD_AXIS_RIGHTY, axis);
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+ }
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+#undef READ_STICK_AXIS
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+
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+ if (ctx->last_state[5] != data[5]) {
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+ Uint8 hat;
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+
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+ switch (data[5] & 0xF) {
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+ case 0:
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+ hat = SDL_HAT_UP;
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+ break;
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+ case 1:
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+ hat = SDL_HAT_RIGHTUP;
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+ break;
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+ case 2:
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+ hat = SDL_HAT_RIGHT;
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+ break;
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+ case 3:
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+ hat = SDL_HAT_RIGHTDOWN;
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+ break;
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+ case 4:
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+ hat = SDL_HAT_DOWN;
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+ break;
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+ case 5:
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+ hat = SDL_HAT_LEFTDOWN;
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+ break;
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+ case 6:
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+ hat = SDL_HAT_LEFT;
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+ break;
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+ case 7:
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+ hat = SDL_HAT_LEFTUP;
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+ break;
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+ default:
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+ hat = SDL_HAT_CENTERED;
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+ break;
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+ }
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+ SDL_SendJoystickHat(timestamp, joystick, 0, hat);
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+ SDL_SendJoystickButton(timestamp, joystick, SDL_GAMEPAD_BUTTON_SOUTH, ((data[5] & 0x10) != 0));
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+ SDL_SendJoystickButton(timestamp, joystick, SDL_GAMEPAD_BUTTON_EAST, ((data[5] & 0x20) != 0));
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+ SDL_SendJoystickButton(timestamp, joystick, SDL_GAMEPAD_BUTTON_HORI_QAM, ((data[5] & 0x40) != 0));
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+ SDL_SendJoystickButton(timestamp, joystick, SDL_GAMEPAD_BUTTON_WEST, ((data[5] & 0x80) != 0));
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+
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+ }
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+
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+ if (ctx->last_state[6] != data[6]) {
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+ SDL_SendJoystickButton(timestamp, joystick, SDL_GAMEPAD_BUTTON_NORTH, ((data[6] & 0x01) != 0));
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+ SDL_SendJoystickButton(timestamp, joystick, SDL_GAMEPAD_BUTTON_HORI_M1 /* M1 */, ((data[6] & 0x02) != 0));
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+ SDL_SendJoystickButton(timestamp, joystick, SDL_GAMEPAD_BUTTON_LEFT_SHOULDER, ((data[6] & 0x04) != 0));
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+ SDL_SendJoystickButton(timestamp, joystick, SDL_GAMEPAD_BUTTON_RIGHT_SHOULDER, ((data[6] & 0x08) != 0));
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+
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+ // TODO: can we handle the digital trigger mode? The data seems to come through analog regardless of the trigger state
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+ SDL_SendJoystickButton(timestamp, joystick, SDL_GAMEPAD_BUTTON_BACK, ((data[6] & 0x40) != 0));
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+ SDL_SendJoystickButton(timestamp, joystick, SDL_GAMEPAD_BUTTON_START, ((data[6] & 0x80) != 0));
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+ }
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+
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+ if (ctx->last_state[7] != data[7]) {
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+ SDL_SendJoystickButton(timestamp, joystick, SDL_GAMEPAD_BUTTON_GUIDE, ((data[7] & 0x01) != 0));
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+ SDL_SendJoystickButton(timestamp, joystick, SDL_GAMEPAD_BUTTON_LEFT_STICK, ((data[7] & 0x02) != 0));
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+ SDL_SendJoystickButton(timestamp, joystick, SDL_GAMEPAD_BUTTON_RIGHT_STICK, ((data[7] & 0x04) != 0));
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+ SDL_SendJoystickButton(timestamp, joystick, SDL_GAMEPAD_BUTTON_HORI_M2, ((data[7] & 0x08) != 0));
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+ SDL_SendJoystickButton(timestamp, joystick, SDL_GAMEPAD_BUTTON_HORI_JOYSTICK_TOUCH_L, ((data[7] & 0x10) != 0));
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+ SDL_SendJoystickButton(timestamp, joystick, SDL_GAMEPAD_BUTTON_HORI_JOYSTICK_TOUCH_R, ((data[7] & 0x20) != 0));
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+ SDL_SendJoystickButton(timestamp, joystick, SDL_GAMEPAD_BUTTON_HORI_FR, ((data[7] & 0x40) != 0));
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+ SDL_SendJoystickButton(timestamp, joystick, SDL_GAMEPAD_BUTTON_HORI_FL, ((data[7] & 0x80) != 0));
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+ }
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+
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+ if (!ctx->wireless && ctx->serial_needs_init) {
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+ char serial[18];
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+ (void)SDL_snprintf(serial, sizeof(serial), "%.2x-%.2x-%.2x-%.2x-%.2x-%.2x",
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+ data[38], data[39], data[40], data[41], data[42], data[43]);
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+
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+ joystick->serial = SDL_strdup(serial);
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+ ctx->serial_needs_init = false;
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+ }
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+
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+#define READ_TRIGGER_AXIS(offset) \
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+ (Sint16)(((int)data[offset] * 257) - 32768)
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+ {
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+ axis = READ_TRIGGER_AXIS(8);
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+ SDL_SendJoystickAxis(timestamp, joystick, SDL_GAMEPAD_AXIS_RIGHT_TRIGGER, axis);
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+ axis = READ_TRIGGER_AXIS(9);
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+ SDL_SendJoystickAxis(timestamp, joystick, SDL_GAMEPAD_AXIS_LEFT_TRIGGER, axis);
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+ }
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+#undef READ_TRIGGER_AXIS
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+
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+ if (1) {
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+ Uint64 sensor_timestamp;
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+ float imu_data[3];
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+
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+ /* 16-bit timestamp */
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+ Uint32 delta;
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+ Uint16 tick = LOAD16(data[10],
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+ data[11]);
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+ if (ctx->last_tick < tick) {
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+ delta = (tick - ctx->last_tick);
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+ } else {
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+ delta = (SDL_MAX_UINT16 - ctx->last_tick + tick + 1);
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+ }
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+
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+ ctx->last_tick = tick;
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+ ctx->sensor_ticks += delta;
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+
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+ /* Sensor timestamp is in 1us units, but there seems to be some issues with the values reported from the device */
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+ sensor_timestamp = timestamp; // if the values were good we woudl call SDL_US_TO_NS(ctx->sensor_ticks);
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+
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+ const float accelScale = SDL_STANDARD_GRAVITY * 8 / 32768.0f;
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+ const float gyroScale = DEG2RAD(2048);
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+
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+ imu_data[1] = RemapValClamped(-1.0f * LOAD16(data[12], data[13]), INT16_MIN, INT16_MAX, -gyroScale, gyroScale);
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+ imu_data[2] = RemapValClamped(-1.0f * LOAD16(data[14], data[15]), INT16_MIN, INT16_MAX, -gyroScale, gyroScale);
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+ imu_data[0] = RemapValClamped(-1.0f * LOAD16(data[16], data[17]), INT16_MIN, INT16_MAX, -gyroScale, gyroScale);
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+
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+
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+ SDL_SendJoystickSensor(timestamp, joystick, SDL_SENSOR_GYRO, sensor_timestamp, imu_data, 3);
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+
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+ // SDL_Log("%u %f, %f, %f \n", data[0], imu_data[0], imu_data[1], imu_data[2] );
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+ imu_data[2] = LOAD16(data[18], data[19]) * accelScale;
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+ imu_data[1] = -1 * LOAD16(data[20], data[21]) * accelScale;
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+ imu_data[0] = LOAD16(data[22], data[23]) * accelScale;
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+ SDL_SendJoystickSensor(timestamp, joystick, SDL_SENSOR_ACCEL, sensor_timestamp, imu_data, 3);
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+ }
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+
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+ if (ctx->last_state[24] != data[24]) {
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+ bool bCharging = (data[24] & 0x10) != 0;
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+ int percent = (data[24] & 0xF) * 10;
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+ SDL_PowerState state;
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+ if (bCharging) {
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+ state = SDL_POWERSTATE_CHARGING;
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+ } else if (ctx->wireless) {
|
|
|
+ state = SDL_POWERSTATE_ON_BATTERY;
|
|
|
+ } else {
|
|
|
+ state = SDL_POWERSTATE_CHARGED;
|
|
|
+ }
|
|
|
+
|
|
|
+ SDL_SendJoystickPowerInfo(joystick, state, percent);
|
|
|
+ }
|
|
|
+
|
|
|
+ SDL_memcpy(ctx->last_state, data, SDL_min(size, sizeof(ctx->last_state)));
|
|
|
+}
|
|
|
+
|
|
|
+static bool HIDAPI_DriverSteamHori_UpdateDevice(SDL_HIDAPI_Device *device)
|
|
|
+{
|
|
|
+ SDL_DriverSteamHori_Context *ctx = (SDL_DriverSteamHori_Context *)device->context;
|
|
|
+ SDL_Joystick *joystick = NULL;
|
|
|
+ Uint8 data[USB_PACKET_LENGTH];
|
|
|
+ int size = 0;
|
|
|
+
|
|
|
+ if (device->num_joysticks > 0) {
|
|
|
+ joystick = SDL_GetJoystickFromID(device->joysticks[0]);
|
|
|
+ } else {
|
|
|
+ return false;
|
|
|
+ }
|
|
|
+
|
|
|
+ while ((size = SDL_hid_read_timeout(device->dev, data, sizeof(data), 0)) > 0) {
|
|
|
+#ifdef DEBUG_HORI_PROTOCOL
|
|
|
+ HIDAPI_DumpPacket("Google Hori packet: size = %d", data, size);
|
|
|
+#endif
|
|
|
+ if (!joystick) {
|
|
|
+ continue;
|
|
|
+ }
|
|
|
+
|
|
|
+ HIDAPI_DriverSteamHori_HandleStatePacket(joystick, ctx, data, size);
|
|
|
+ }
|
|
|
+
|
|
|
+ if (size < 0) {
|
|
|
+ /* Read error, device is disconnected */
|
|
|
+ HIDAPI_JoystickDisconnected(device, device->joysticks[0]);
|
|
|
+ }
|
|
|
+ return (size >= 0);
|
|
|
+}
|
|
|
+
|
|
|
+static void HIDAPI_DriverSteamHori_CloseJoystick(SDL_HIDAPI_Device *device, SDL_Joystick *joystick)
|
|
|
+{
|
|
|
+}
|
|
|
+
|
|
|
+static void HIDAPI_DriverSteamHori_FreeDevice(SDL_HIDAPI_Device *device)
|
|
|
+{
|
|
|
+}
|
|
|
+
|
|
|
+SDL_HIDAPI_DeviceDriver SDL_HIDAPI_DriverSteamHori = {
|
|
|
+ SDL_HINT_JOYSTICK_HIDAPI_STEAM_HORI,
|
|
|
+ true,
|
|
|
+ HIDAPI_DriverSteamHori_RegisterHints,
|
|
|
+ HIDAPI_DriverSteamHori_UnregisterHints,
|
|
|
+ HIDAPI_DriverSteamHori_IsEnabled,
|
|
|
+ HIDAPI_DriverSteamHori_IsSupportedDevice,
|
|
|
+ HIDAPI_DriverSteamHori_InitDevice,
|
|
|
+ HIDAPI_DriverSteamHori_GetDevicePlayerIndex,
|
|
|
+ HIDAPI_DriverSteamHori_SetDevicePlayerIndex,
|
|
|
+ HIDAPI_DriverSteamHori_UpdateDevice,
|
|
|
+ HIDAPI_DriverSteamHori_OpenJoystick,
|
|
|
+ HIDAPI_DriverSteamHori_RumbleJoystick,
|
|
|
+ HIDAPI_DriverSteamHori_RumbleJoystickTriggers,
|
|
|
+ HIDAPI_DriverSteamHori_GetJoystickCapabilities,
|
|
|
+ HIDAPI_DriverSteamHori_SetJoystickLED,
|
|
|
+ HIDAPI_DriverSteamHori_SendJoystickEffect,
|
|
|
+ HIDAPI_DriverSteamHori_SetJoystickSensorsEnabled,
|
|
|
+ HIDAPI_DriverSteamHori_CloseJoystick,
|
|
|
+ HIDAPI_DriverSteamHori_FreeDevice,
|
|
|
+};
|
|
|
+
|
|
|
+#endif /* SDL_JOYSTICK_HIDAPI_STEAM_HORI */
|
|
|
+
|
|
|
+#endif /* SDL_JOYSTICK_HIDAPI */
|
Sam Lantinga