add display rotation

src/hardware/touch.cpp

@@ -0,0 +1,49 @@
+#include "config.h"
+#include "touch.h"
+
+lv_indev_t *touch_indev = NULL;
+
+static bool touch_read(lv_indev_drv_t * drv, lv_indev_data_t*data);
+static bool touch_getXY( int16_t &x, int16_t &y );
+
+void touch_setup( TTGOClass *ttgo ) {
+    touch_indev = lv_indev_get_next( NULL );
+
+    touch_indev->driver.read_cb = touch_read;
+}
+
+static bool touch_getXY( int16_t &x, int16_t &y ) {
+    TTGOClass *ttgo = TTGOClass::getWatch();
+    TP_Point p;
+
+    if ( !ttgo->touch->touched() ) {
+        return false;
+    }    
+    p = ttgo->touch->getPoint();
+
+    uint8_t rotation = ttgo->tft->getRotation();
+    switch ( rotation ) {
+    case 0:
+        x = TFT_WIDTH - p.x;
+        y = TFT_HEIGHT - p.y;
+        break;
+    case 1:
+        x = TFT_WIDTH - p.y;
+        y = p.x;
+        break;
+    case 3:
+        x = p.y;
+        y = TFT_HEIGHT - p.x;
+        break;
+    case 2:
+    default:
+        x = p.x;
+        y = p.y;
+    }
+    return true;
+}
+
+static bool touch_read(lv_indev_drv_t * drv, lv_indev_data_t*data) {
+    data->state = touch_getXY(data->point.x, data->point.y) ?  LV_INDEV_STATE_PR : LV_INDEV_STATE_REL;
+    return false;
+}