project for a (works on my devices) demo

sources/input/touch/touch_data.c

@@ -0,0 +1,73 @@
+#include <stdlib.h>
+
+#include <stdio.h>
+
+#include "../../../headers/input/touch/touch_data.h"
+
+touch_event* touch_event_new(){
+	touch_event* te = malloc( sizeof( touch_event));
+	te->slot_number = 0;
+	te->tracking_id = 0;
+	te->position.x = 0;
+	te->position.y = 0;
+	return te;
+}
+
+/* could use memcpy...*/
+void touch_event_copy( touch_event *dst, touch_event *src){
+	dst->slot_number = src->slot_number;
+	dst->tracking_id = src->tracking_id;
+	dst->position.x = src->position.x;
+	dst->position.y = src->position.y;
+}
+
+touch_coordinates* new_touch_coordinates_buffer( uint8_t count){
+	if( ! count){
+		return NULL;
+	}
+	touch_coordinates* buffer = malloc( count * sizeof( touch_coordinates));
+	return buffer;
+}
+
+void free_touch_coordinates_buffer( touch_coordinates* buffer){
+	if( buffer){
+		free( buffer);
+	}
+}
+
+void print_touch_event( touch_event *event){
+	printf("touch_event info : %p\n", (void*) event);
+	printf("slot_number : %ld\n", event->slot_number);
+	printf("tracking_id : %ld\n", event->tracking_id);
+	printf("position_x : %ld\n", event->position.x);
+	printf("position_y : %ld\n", event->position.y);
+	printf("touch_event info end\n");
+}
+
+void touch_events_array_copy( touch_event ***dst, touch_event **src, uint8_t count){
+//printf("begin copy\n");
+	if( ! count){
+	//printf("nothing to copy\n");
+		*dst = NULL;
+		return;
+	}
+	*dst = malloc( count * sizeof( touch_event*));
+//printf("will copy %d items, into %p, taken from %p\n", count, ( void*) (*dst), ( void*) src);
+	for( uint8_t i ; i < count; i++){
+	//print_touch_event( src[i]);
+		( *dst)[i] = touch_event_new();
+
+	//print_touch_event( ( *dst)[i]);
+
+		touch_event_copy( ( *dst)[i], src[i]);
+	//print_touch_event( ( *dst)[i]);
+	}
+//printf("end copy\n");
+}
+
+void free_touch_events_array( touch_event **buffer, uint8_t count){
+	for( uint8_t i; i < count; i++){
+		free( buffer[i]);
+	}
+	free( buffer);
+}