[input] Give input drivers a private data pointer

The pointer can be updated at any time using the driver handle (returned
by IN_RegisterData).

include/QF/input.h

@@ -36,11 +36,11 @@ typedef struct {
 } viewdelta_t;
 
 typedef struct {
-	void (*init) (void);
-	void (*shutdown) (void);
-	void (*process_events) (void);
-	void (*clear_states) (void);
-	void (*grab_input) (int grab);
+	void (*init) (void *data);
+	void (*shutdown) (void *data);
+	void (*process_events) (void *data);
+	void (*clear_states) (void *data);
+	void (*grab_input) (void *data, int grab);
 } in_driver_t;
 
 extern viewdelta_t viewdelta;
@@ -49,7 +49,8 @@ extern viewdelta_t viewdelta;
 
 struct cvar_s;
 
-void IN_RegisterDriver (in_driver_t *driver);
+int IN_RegisterDriver (in_driver_t *driver, void *data);
+void IN_DriverData (int handlle, void *data);
 void IN_Init (struct cbuf_s *cbuf);
 void IN_Init_Cvars (void);
 

libs/input/in_common.c

@@ -58,7 +58,12 @@
 #include "QF/sys.h"
 #include "QF/vid.h"
 
-static struct DARRAY_TYPE (in_driver_t) in_drivers = { .grow = 8, };
+typedef struct {
+	in_driver_t driver;
+	void       *data;
+} in_regdriver_t;
+
+static struct DARRAY_TYPE (in_regdriver_t) in_drivers = { .grow = 8, };
 
 VISIBLE viewdelta_t viewdelta;
 
@@ -79,10 +84,18 @@ qboolean    in_mouse_avail;
 float       in_mouse_x, in_mouse_y;
 static float in_old_mouse_x, in_old_mouse_y;
 
-void
-IN_RegisterDriver (in_driver_t *driver)
+int
+IN_RegisterDriver (in_driver_t *driver, void *data)
 {
-	DARRAY_APPEND (&in_drivers, *driver);
+	in_regdriver_t rdriver = { *driver, data };
+	DARRAY_APPEND (&in_drivers, rdriver);
+	return in_drivers.size - 1;
+}
+
+void
+IN_DriverData (int handle, void *data)
+{
+	in_drivers.a[handle].data = data;
 }
 
 void
@@ -90,8 +103,9 @@ IN_UpdateGrab (cvar_t *var)		// called from context_*.c
 {
 	if (var) {
 		for (size_t i = 0; i < in_drivers.size; i++) {
-			if (in_drivers.a[i].grab_input) {
-				in_drivers.a[i].grab_input (var->int_val);
+			in_regdriver_t *rd = &in_drivers.a[i];
+			if (rd->driver.grab_input) {
+				rd->driver.grab_input (rd->data, var->int_val);
 			}
 		}
 	}
@@ -101,7 +115,8 @@ void
 IN_ProcessEvents (void)
 {
 	for (size_t i = 0; i < in_drivers.size; i++) {
-		in_drivers.a[i].process_events ();
+		in_regdriver_t *rd = &in_drivers.a[i];
+		rd->driver.process_events (rd->data);
 	}
 }
 
@@ -148,8 +163,9 @@ IN_shutdown (void *data)
 
 	Sys_MaskPrintf (SYS_vid, "IN_Shutdown\n");
 	for (size_t i = in_drivers.size; i-- > 0; ) {
-		if (in_drivers.a[i].shutdown) {
-			in_drivers.a[i].shutdown ();
+		in_regdriver_t *rd = &in_drivers.a[i];
+		if (rd->driver.shutdown) {
+			rd->driver.shutdown (rd->data);
 		}
 	}
 
@@ -163,7 +179,8 @@ IN_Init (cbuf_t *cbuf)
 
 	IE_Init ();
 	for (size_t i = 0; i < in_drivers.size; i++) {
-		in_drivers.a[i].init ();
+		in_regdriver_t *rd = &in_drivers.a[i];
+		rd->driver.init (rd->data);
 	}
 	Key_Init (cbuf);
 	//JOY_Init ();
@@ -200,8 +217,9 @@ void
 IN_ClearStates (void)
 {
 	for (size_t i = 0; i < in_drivers.size; i++) {
-		if (in_drivers.a[i].clear_states) {
-			in_drivers.a[i].clear_states ();
+		in_regdriver_t *rd = &in_drivers.a[i];
+		if (rd->driver.clear_states) {
+			rd->driver.clear_states (rd->data);
 		}
 	}
 	Key_ClearStates ();

libs/input/in_evdev.c

@@ -49,14 +49,14 @@ in_evdev_keydest_callback (keydest_t key_dest, void *data)
 }
 
 static void
-in_evdev_process_events (void)
+in_evdev_process_events (void *data)
 {
 	if (inputlib_check_input ()) {
 	}
 }
 
 static void
-in_evdev_shutdown (void)
+in_evdev_shutdown (void *data)
 {
 	inputlib_close ();
 }
@@ -64,15 +64,20 @@ in_evdev_shutdown (void)
 static void
 device_add (device_t *dev)
 {
+	Sys_Printf ("in_evdev: add %s\n", dev->path);
+	Sys_Printf ("    %s\n", dev->name);
+	Sys_Printf ("    %s\n", dev->phys);
+	Sys_Printf ("    %s\n", dev->uniq);
 }
 
 static void
 device_remove (device_t *dev)
 {
+	Sys_Printf ("in_evdev: remove %s\n", dev->path);
 }
 
 static void
-in_evdev_init (void)
+in_evdev_init (void *data)
 {
 	Key_KeydestCallback (in_evdev_keydest_callback, 0);
 
@@ -80,7 +85,7 @@ in_evdev_init (void)
 }
 
 static void
-in_evdev_clear_states (void)
+in_evdev_clear_states (void *data)
 {
 }
 
@@ -94,7 +99,7 @@ static in_driver_t in_evdev_driver = {
 static void __attribute__((constructor))
 in_evdev_register_driver (void)
 {
-	IN_RegisterDriver (&in_evdev_driver);
+	IN_RegisterDriver (&in_evdev_driver, 0);
 }
 
 int in_evdev_force_link;

libs/video/targets/in_x11.c

@@ -743,7 +743,7 @@ grab_error (int code, const char *device)
 }
 
 static void
-in_x11_grab_input (int grab)
+in_x11_grab_input (void *data, int grab)
 {
 	if (!x_disp || !x_win)
 		return;
@@ -781,13 +781,13 @@ in_x11_grab_input (int grab)
 }
 
 static void
-in_x11_process_events (void)
+in_x11_process_events (void *data)
 {
 	X11_ProcessEvents ();	// Get events from X server.
 }
 
 static void
-in_x11_shutdown (void)
+in_x11_shutdown (void *data)
 {
 	Sys_MaskPrintf (SYS_vid, "in_x11_shutdown\n");
 	in_mouse_avail = 0;
@@ -813,7 +813,7 @@ in_x11_init_cvars (void)
 }
 
 static void
-in_x11_init (void)
+in_x11_init (void *data)
 {
 	// open the display
 	if (!x_disp)
@@ -863,7 +863,7 @@ in_x11_init (void)
 }
 
 static void
-in_x11_clear_states (void)
+in_x11_clear_states (void *data)
 {
 }
 
@@ -878,7 +878,7 @@ static in_driver_t in_x11_driver = {
 static void __attribute__((constructor))
 in_x11_register_driver (void)
 {
-	IN_RegisterDriver (&in_x11_driver);
+	IN_RegisterDriver (&in_x11_driver, 0);
 }
 
 int x11_force_link;