1 files changed, 369 insertions, 0 deletions

diff --git a/contrib/SDL-3.2.8/src/haptic/windows/SDL_windowshaptic.c b/contrib/SDL-3.2.8/src/haptic/windows/SDL_windowshaptic.c
new file mode 100644
index 0000000..e21ab91
--- /dev/null
+++ b/contrib/SDL-3.2.8/src/haptic/windows/SDL_windowshaptic.c
@@ -0,0 +1,369 @@
+/*
+  Simple DirectMedia Layer
+  Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.org>
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+*/
+#include "SDL_internal.h"
+
+#ifdef SDL_HAPTIC_DINPUT
+
+#include "../SDL_syshaptic.h"
+#include "../../joystick/SDL_sysjoystick.h"               // For the real SDL_Joystick
+#include "../../joystick/windows/SDL_windowsjoystick_c.h" // For joystick hwdata
+#include "../../joystick/windows/SDL_xinputjoystick_c.h"  // For xinput rumble
+
+#include "SDL_windowshaptic_c.h"
+#include "SDL_dinputhaptic_c.h"
+
+// Set up for C function definitions, even when using C++
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+ * Internal stuff.
+ */
+SDL_hapticlist_item *SDL_hapticlist = NULL;
+static SDL_hapticlist_item *SDL_hapticlist_tail = NULL;
+static int numhaptics = 0;
+
+/*
+ * Initializes the haptic subsystem.
+ */
+bool SDL_SYS_HapticInit(void)
+{
+    JoyStick_DeviceData *device;
+
+    if (!SDL_DINPUT_HapticInit()) {
+        return false;
+    }
+
+    /* The joystick subsystem will usually be initialized before haptics,
+     * so the initial HapticMaybeAddDevice() calls from the joystick
+     * subsystem will arrive too early to create haptic devices. We will
+     * invoke those callbacks again here to pick up any joysticks that
+     * were added prior to haptics initialization. */
+    for (device = SYS_Joystick; device; device = device->pNext) {
+        SDL_DINPUT_HapticMaybeAddDevice(&device->dxdevice);
+    }
+
+    return true;
+}
+
+bool SDL_SYS_AddHapticDevice(SDL_hapticlist_item *item)
+{
+    if (!SDL_hapticlist_tail) {
+        SDL_hapticlist = SDL_hapticlist_tail = item;
+    } else {
+        SDL_hapticlist_tail->next = item;
+        SDL_hapticlist_tail = item;
+    }
+
+    // Device has been added.
+    ++numhaptics;
+
+    return true;
+}
+
+bool SDL_SYS_RemoveHapticDevice(SDL_hapticlist_item *prev, SDL_hapticlist_item *item)
+{
+    const bool result = item->haptic ? true : false;
+    if (prev) {
+        prev->next = item->next;
+    } else {
+        SDL_assert(SDL_hapticlist == item);
+        SDL_hapticlist = item->next;
+    }
+    if (item == SDL_hapticlist_tail) {
+        SDL_hapticlist_tail = prev;
+    }
+    --numhaptics;
+    // !!! TODO: Send a haptic remove event?
+    SDL_free(item);
+    return result;
+}
+
+int SDL_SYS_NumHaptics(void)
+{
+    return numhaptics;
+}
+
+static SDL_hapticlist_item *HapticByDevIndex(int device_index)
+{
+    SDL_hapticlist_item *item = SDL_hapticlist;
+
+    if ((device_index < 0) || (device_index >= numhaptics)) {
+        return NULL;
+    }
+
+    while (device_index > 0) {
+        SDL_assert(item != NULL);
+        --device_index;
+        item = item->next;
+    }
+    return item;
+}
+
+static SDL_hapticlist_item *HapticByInstanceID(SDL_HapticID instance_id)
+{
+    SDL_hapticlist_item *item;
+    for (item = SDL_hapticlist; item; item = item->next) {
+        if (instance_id == item->instance_id) {
+            return item;
+        }
+    }
+    return NULL;
+}
+
+SDL_HapticID SDL_SYS_HapticInstanceID(int index)
+{
+    SDL_hapticlist_item *item = HapticByDevIndex(index);
+    if (item) {
+        return item->instance_id;
+    }
+    return 0;
+}
+
+/*
+ * Return the name of a haptic device, does not need to be opened.
+ */
+const char *SDL_SYS_HapticName(int index)
+{
+    SDL_hapticlist_item *item = HapticByDevIndex(index);
+    return item->name;
+}
+
+/*
+ * Opens a haptic device for usage.
+ */
+bool SDL_SYS_HapticOpen(SDL_Haptic *haptic)
+{
+    SDL_hapticlist_item *item = HapticByInstanceID(haptic->instance_id);
+    return SDL_DINPUT_HapticOpen(haptic, item);
+}
+
+/*
+ * Opens a haptic device from first mouse it finds for usage.
+ */
+int SDL_SYS_HapticMouse(void)
+{
+#ifdef SDL_HAPTIC_DINPUT
+    SDL_hapticlist_item *item;
+    int index = 0;
+
+    // Grab the first mouse haptic device we find.
+    for (item = SDL_hapticlist; item; item = item->next) {
+        if (item->capabilities.dwDevType == DI8DEVCLASS_POINTER) {
+            return index;
+        }
+        ++index;
+    }
+#endif // SDL_HAPTIC_DINPUT
+    return -1;
+}
+
+/*
+ * Checks to see if a joystick has haptic features.
+ */
+bool SDL_SYS_JoystickIsHaptic(SDL_Joystick *joystick)
+{
+    if (joystick->driver != &SDL_WINDOWS_JoystickDriver) {
+        return false;
+    }
+    if (joystick->hwdata->Capabilities.dwFlags & DIDC_FORCEFEEDBACK) {
+        return true;
+    }
+    return false;
+}
+
+/*
+ * Checks to see if the haptic device and joystick are in reality the same.
+ */
+bool SDL_SYS_JoystickSameHaptic(SDL_Haptic *haptic, SDL_Joystick *joystick)
+{
+    if (joystick->driver != &SDL_WINDOWS_JoystickDriver) {
+        return false;
+    }
+    return SDL_DINPUT_JoystickSameHaptic(haptic, joystick);
+}
+
+/*
+ * Opens a SDL_Haptic from a SDL_Joystick.
+ */
+bool SDL_SYS_HapticOpenFromJoystick(SDL_Haptic *haptic, SDL_Joystick *joystick)
+{
+    SDL_assert(joystick->driver == &SDL_WINDOWS_JoystickDriver);
+
+    return SDL_DINPUT_HapticOpenFromJoystick(haptic, joystick);
+}
+
+/*
+ * Closes the haptic device.
+ */
+void SDL_SYS_HapticClose(SDL_Haptic *haptic)
+{
+    if (haptic->hwdata) {
+
+        // Free effects.
+        SDL_free(haptic->effects);
+        haptic->effects = NULL;
+        haptic->neffects = 0;
+
+        // Clean up
+        SDL_DINPUT_HapticClose(haptic);
+
+        // Free
+        SDL_free(haptic->hwdata);
+        haptic->hwdata = NULL;
+    }
+}
+
+/*
+ * Clean up after system specific haptic stuff
+ */
+void SDL_SYS_HapticQuit(void)
+{
+    SDL_hapticlist_item *item;
+    SDL_hapticlist_item *next = NULL;
+
+    for (item = SDL_hapticlist; item; item = next) {
+        /* Opened and not closed haptics are leaked, this is on purpose.
+         * Close your haptic devices after usage. */
+        // !!! FIXME: (...is leaking on purpose a good idea?) - No, of course not.
+        next = item->next;
+        SDL_free(item->name);
+        SDL_free(item);
+    }
+
+    SDL_DINPUT_HapticQuit();
+
+    numhaptics = 0;
+    SDL_hapticlist = NULL;
+    SDL_hapticlist_tail = NULL;
+}
+
+/*
+ * Creates a new haptic effect.
+ */
+bool SDL_SYS_HapticNewEffect(SDL_Haptic *haptic, struct haptic_effect *effect,
+                            const SDL_HapticEffect *base)
+{
+    bool result;
+
+    // Alloc the effect.
+    effect->hweffect = (struct haptic_hweffect *) SDL_calloc(1, sizeof(struct haptic_hweffect));
+    if (!effect->hweffect) {
+        return false;
+    }
+
+    result = SDL_DINPUT_HapticNewEffect(haptic, effect, base);
+    if (!result) {
+        SDL_free(effect->hweffect);
+        effect->hweffect = NULL;
+    }
+    return result;
+}
+
+/*
+ * Updates an effect.
+ */
+bool SDL_SYS_HapticUpdateEffect(SDL_Haptic *haptic, struct haptic_effect *effect, const SDL_HapticEffect *data)
+{
+    return SDL_DINPUT_HapticUpdateEffect(haptic, effect, data);
+}
+
+/*
+ * Runs an effect.
+ */
+bool SDL_SYS_HapticRunEffect(SDL_Haptic *haptic, struct haptic_effect *effect, Uint32 iterations)
+{
+    return SDL_DINPUT_HapticRunEffect(haptic, effect, iterations);
+}
+
+/*
+ * Stops an effect.
+ */
+bool SDL_SYS_HapticStopEffect(SDL_Haptic *haptic, struct haptic_effect *effect)
+{
+    return SDL_DINPUT_HapticStopEffect(haptic, effect);
+}
+
+/*
+ * Frees the effect.
+ */
+void SDL_SYS_HapticDestroyEffect(SDL_Haptic *haptic, struct haptic_effect *effect)
+{
+    SDL_DINPUT_HapticDestroyEffect(haptic, effect);
+    SDL_free(effect->hweffect);
+    effect->hweffect = NULL;
+}
+
+/*
+ * Gets the status of a haptic effect.
+ */
+int SDL_SYS_HapticGetEffectStatus(SDL_Haptic *haptic, struct haptic_effect *effect)
+{
+    return SDL_DINPUT_HapticGetEffectStatus(haptic, effect);
+}
+
+/*
+ * Sets the gain.
+ */
+bool SDL_SYS_HapticSetGain(SDL_Haptic *haptic, int gain)
+{
+    return SDL_DINPUT_HapticSetGain(haptic, gain);
+}
+
+/*
+ * Sets the autocentering.
+ */
+bool SDL_SYS_HapticSetAutocenter(SDL_Haptic *haptic, int autocenter)
+{
+    return SDL_DINPUT_HapticSetAutocenter(haptic, autocenter);
+}
+
+/*
+ * Pauses the device.
+ */
+bool SDL_SYS_HapticPause(SDL_Haptic *haptic)
+{
+    return SDL_DINPUT_HapticPause(haptic);
+}
+
+/*
+ * Pauses the device.
+ */
+bool SDL_SYS_HapticResume(SDL_Haptic *haptic)
+{
+    return SDL_DINPUT_HapticResume(haptic);
+}
+
+/*
+ * Stops all the playing effects on the device.
+ */
+bool SDL_SYS_HapticStopAll(SDL_Haptic *haptic)
+{
+    return SDL_DINPUT_HapticStopAll(haptic);
+}
+
+// Ends C function definitions when using C++
+#ifdef __cplusplus
+}
+#endif
+
+#endif // SDL_HAPTIC_DINPUT