From 6aaedb813fa11ba0679c3051bc2eb28646b9506c Mon Sep 17 00:00:00 2001 From: 3gg <3gg@shellblade.net> Date: Sat, 30 Aug 2025 16:53:58 -0700 Subject: Update to SDL3 --- src/contrib/SDL-3.2.20/include/SDL3/SDL_touch.h | 184 ++++++++++++++++++++++++ 1 file changed, 184 insertions(+) create mode 100644 src/contrib/SDL-3.2.20/include/SDL3/SDL_touch.h (limited to 'src/contrib/SDL-3.2.20/include/SDL3/SDL_touch.h') diff --git a/src/contrib/SDL-3.2.20/include/SDL3/SDL_touch.h b/src/contrib/SDL-3.2.20/include/SDL3/SDL_touch.h new file mode 100644 index 0000000..64845a1 --- /dev/null +++ b/src/contrib/SDL-3.2.20/include/SDL3/SDL_touch.h @@ -0,0 +1,184 @@ +/* + Simple DirectMedia Layer + Copyright (C) 1997-2025 Sam Lantinga + + 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. +*/ + +/** + * # CategoryTouch + * + * SDL offers touch input, on platforms that support it. It can manage + * multiple touch devices and track multiple fingers on those devices. + * + * Touches are mostly dealt with through the event system, in the + * SDL_EVENT_FINGER_DOWN, SDL_EVENT_FINGER_MOTION, and SDL_EVENT_FINGER_UP + * events, but there are also functions to query for hardware details, etc. + * + * The touch system, by default, will also send virtual mouse events; this can + * be useful for making a some desktop apps work on a phone without + * significant changes. For apps that care about mouse and touch input + * separately, they should ignore mouse events that have a `which` field of + * SDL_TOUCH_MOUSEID. + */ + +#ifndef SDL_touch_h_ +#define SDL_touch_h_ + +#include +#include +#include + +#include +/* Set up for C function definitions, even when using C++ */ +#ifdef __cplusplus +extern "C" { +#endif + +/** + * A unique ID for a touch device. + * + * This ID is valid for the time the device is connected to the system, and is + * never reused for the lifetime of the application. + * + * The value 0 is an invalid ID. + * + * \since This datatype is available since SDL 3.2.0. + */ +typedef Uint64 SDL_TouchID; + +/** + * A unique ID for a single finger on a touch device. + * + * This ID is valid for the time the finger (stylus, etc) is touching and will + * be unique for all fingers currently in contact, so this ID tracks the + * lifetime of a single continuous touch. This value may represent an index, a + * pointer, or some other unique ID, depending on the platform. + * + * The value 0 is an invalid ID. + * + * \since This datatype is available since SDL 3.2.0. + */ +typedef Uint64 SDL_FingerID; + +/** + * An enum that describes the type of a touch device. + * + * \since This enum is available since SDL 3.2.0. + */ +typedef enum SDL_TouchDeviceType +{ + SDL_TOUCH_DEVICE_INVALID = -1, + SDL_TOUCH_DEVICE_DIRECT, /**< touch screen with window-relative coordinates */ + SDL_TOUCH_DEVICE_INDIRECT_ABSOLUTE, /**< trackpad with absolute device coordinates */ + SDL_TOUCH_DEVICE_INDIRECT_RELATIVE /**< trackpad with screen cursor-relative coordinates */ +} SDL_TouchDeviceType; + +/** + * Data about a single finger in a multitouch event. + * + * Each touch event is a collection of fingers that are simultaneously in + * contact with the touch device (so a "touch" can be a "multitouch," in + * reality), and this struct reports details of the specific fingers. + * + * \since This struct is available since SDL 3.2.0. + * + * \sa SDL_GetTouchFingers + */ +typedef struct SDL_Finger +{ + SDL_FingerID id; /**< the finger ID */ + float x; /**< the x-axis location of the touch event, normalized (0...1) */ + float y; /**< the y-axis location of the touch event, normalized (0...1) */ + float pressure; /**< the quantity of pressure applied, normalized (0...1) */ +} SDL_Finger; + +/** + * The SDL_MouseID for mouse events simulated with touch input. + * + * \since This macro is available since SDL 3.2.0. + */ +#define SDL_TOUCH_MOUSEID ((SDL_MouseID)-1) + +/** + * The SDL_TouchID for touch events simulated with mouse input. + * + * \since This macro is available since SDL 3.2.0. + */ +#define SDL_MOUSE_TOUCHID ((SDL_TouchID)-1) + + +/** + * Get a list of registered touch devices. + * + * On some platforms SDL first sees the touch device if it was actually used. + * Therefore the returned list might be empty, although devices are available. + * After using all devices at least once the number will be correct. + * + * \param count a pointer filled in with the number of devices returned, may + * be NULL. + * \returns a 0 terminated array of touch device IDs or NULL on failure; call + * SDL_GetError() for more information. This should be freed with + * SDL_free() when it is no longer needed. + * + * \since This function is available since SDL 3.2.0. + */ +extern SDL_DECLSPEC SDL_TouchID * SDLCALL SDL_GetTouchDevices(int *count); + +/** + * Get the touch device name as reported from the driver. + * + * \param touchID the touch device instance ID. + * \returns touch device name, or NULL on failure; call SDL_GetError() for + * more information. + * + * \since This function is available since SDL 3.2.0. + */ +extern SDL_DECLSPEC const char * SDLCALL SDL_GetTouchDeviceName(SDL_TouchID touchID); + +/** + * Get the type of the given touch device. + * + * \param touchID the ID of a touch device. + * \returns touch device type. + * + * \since This function is available since SDL 3.2.0. + */ +extern SDL_DECLSPEC SDL_TouchDeviceType SDLCALL SDL_GetTouchDeviceType(SDL_TouchID touchID); + +/** + * Get a list of active fingers for a given touch device. + * + * \param touchID the ID of a touch device. + * \param count a pointer filled in with the number of fingers returned, can + * be NULL. + * \returns a NULL terminated array of SDL_Finger pointers or NULL on failure; + * call SDL_GetError() for more information. This is a single + * allocation that should be freed with SDL_free() when it is no + * longer needed. + * + * \since This function is available since SDL 3.2.0. + */ +extern SDL_DECLSPEC SDL_Finger ** SDLCALL SDL_GetTouchFingers(SDL_TouchID touchID, int *count); + +/* Ends C function definitions when using C++ */ +#ifdef __cplusplus +} +#endif +#include + +#endif /* SDL_touch_h_ */ -- cgit v1.2.3