initial commit

2026-08-07 14:51:41 -05:00
commit 9251b3a196
604 changed files with 464448 additions and 0 deletions
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+package sdl
+
+/*
+#include "sdl_wrapper.h"
+
+#if !(SDL_VERSION_ATLEAST(2,0,10))
+
+typedef enum
+{
+    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;
+
+#if defined(WARN_OUTDATED)
+#pragma message("SDL_GetTouchDeviceType is not supported before SDL 2.0.10")
+#endif
+
+static inline SDL_TouchDeviceType SDL_GetTouchDeviceType(SDL_TouchID touchID)
+{
+	return SDL_TOUCH_DEVICE_INVALID;
+}
+
+#endif
+
+*/
+import "C"
+import "unsafe"
+
+// TOUCH_MOUSEID is the device ID for mouse events simulated with touch input
+const TOUCH_MOUSEID = C.SDL_TOUCH_MOUSEID
+
+// TouchID is the ID of a touch device.
+type TouchID C.SDL_TouchID
+
+// FingerID is a finger id.
+type FingerID C.SDL_FingerID
+
+// TouchDeviceType is a touch device type.
+type TouchDeviceType C.SDL_TouchDeviceType
+
+const (
+	TOUCH_DEVICE_INVALID           TouchDeviceType = C.SDL_TOUCH_DEVICE_INVALID
+	TOUCH_DEVICE_DIRECT                            = C.SDL_TOUCH_DEVICE_DIRECT            // touch screen with window-relative coordinates
+	TOUCH_DEVICE_INDIRECT_ABSOLUTE                 = C.SDL_TOUCH_DEVICE_INDIRECT_ABSOLUTE // trackpad with absolute device coordinates
+	TOUCH_DEVICE_INDIRECT_RELATIVE                 = C.SDL_TOUCH_DEVICE_INDIRECT_RELATIVE // trackpad with screen cursor-relative coordinates
+)
+
+// Finger contains touch information.
+type Finger struct {
+	ID       FingerID // the finger id
+	X        float32  // the x-axis location of the touch event, normalized (0...1)
+	Y        float32  // the y-axis location of the touch event, normalized (0...1)
+	Pressure float32  // the quantity of pressure applied, normalized (0...1)
+}
+
+func (t TouchID) c() C.SDL_TouchID {
+	return C.SDL_TouchID(t)
+}
+
+// GetNumTouchDevices returns the number of registered touch devices.
+// (https://wiki.libsdl.org/SDL_GetNumTouchDevices)
+func GetNumTouchDevices() int {
+	return int(C.SDL_GetNumTouchDevices())
+}
+
+// GetTouchDevice returns the touch ID with the given index.
+// (https://wiki.libsdl.org/SDL_GetTouchDevice)
+func GetTouchDevice(index int) TouchID {
+	return TouchID(C.SDL_GetTouchDevice(C.int(index)))
+}
+
+// GetTouchDeviceType returns the type of the given touch device.
+// TODO: (https://wiki.libsdl.org/SDL_GetTouchDeviceType)
+func GetTouchDeviceType(id TouchID) TouchDeviceType {
+	return TouchDeviceType(C.SDL_GetTouchDeviceType(C.SDL_TouchID(id)))
+}
+
+// GetNumTouchFingers returns the number of active fingers for a given touch device.
+// (https://wiki.libsdl.org/SDL_GetNumTouchFingers)
+func GetNumTouchFingers(t TouchID) int {
+	return int(C.SDL_GetNumTouchFingers(t.c()))
+}
+
+// GetTouchFinger returns the finger object for specified touch device ID and finger index.
+// (https://wiki.libsdl.org/SDL_GetTouchFinger)
+func GetTouchFinger(t TouchID, index int) *Finger {
+	return (*Finger)(unsafe.Pointer(C.SDL_GetTouchFinger(t.c(), C.int(index))))
+}