Refine copyright information

backend/fbdev.c

@@ -1,6 +1,6 @@
 /*
  * Twin - A Tiny Window System
- * Copyright (c) 2024 National Cheng Kung University, Taiwan
+ * Copyright (c) 2024-2025 National Cheng Kung University, Taiwan
  * All rights reserved.
  */
 

backend/linux_vt.h

@@ -1,6 +1,6 @@
 /*
  * Twin - A Tiny Window System
- * Copyright (c) 2024 National Cheng Kung University, Taiwan
+ * Copyright (c) 2024-2025 National Cheng Kung University, Taiwan
  * All rights reserved.
  */
 
@@ -25,12 +25,10 @@ static volatile sig_atomic_t *is_vt_actived;
 
 static inline int twin_vt_open(int vt_num)
 {
-    int fd;
-
     char vt_dev[VT_DEV_TTY_MAX] = {0};
     snprintf(vt_dev, VT_DEV_TTY_MAX, "/dev/tty%d", vt_num);
 
-    fd = open(vt_dev, O_RDWR);
+    int fd = open(vt_dev, O_RDWR);
     if (fd < 0) {
         log_error("Failed to open %s", vt_dev);
     }

include/twin.h

@@ -1,6 +1,7 @@
 /*
  * Twin - A Tiny Window System
  * Copyright (c) 2004 Keith Packard <[email protected]>
+ * Copyright (c) 2024-2025 National Cheng Kung University, Taiwan
  * All rights reserved.
  */
 

include/twin_private.h

@@ -1,6 +1,7 @@
 /*
  * Twin - A Tiny Window System
  * Copyright (c) 2004 Keith Packard <[email protected]>
+ * Copyright (c) 2024 National Cheng Kung University, Taiwan
  * All rights reserved.
  */
 

src/dispatch.c

@@ -1,6 +1,7 @@
 /*
  * Twin - A Tiny Window System
  * Copyright (c) 2004 Keith Packard <[email protected]>
+ * Copyright (c) 2024 National Cheng Kung University, Taiwan
  * All rights reserved.
  */
 
@@ -16,6 +17,7 @@ void twin_dispatch(twin_context_t *ctx)
     for (;;) {
         _twin_run_timeout();
         _twin_run_work();
+
         if (g_twin_backend.poll && !g_twin_backend.poll(ctx)) {
             twin_time_t delay = _twin_timeout_delay();
             if (delay > 0)

src/draw-pixman.c

@@ -1,6 +1,6 @@
 /*
  * Twin - A Tiny Window System
- * Copyright (c) 2024 National Cheng Kung University, Taiwan
+ * Copyright (c) 2024-2025 National Cheng Kung University, Taiwan
  * All rights reserved.
  */
 

src/draw.c

@@ -1,6 +1,7 @@
 /*
  * Twin - A Tiny Window System
  * Copyright (c) 2004 Keith Packard <[email protected]>
+ * Copyright (c) 2024 National Cheng Kung University, Taiwan
  * All rights reserved.
  */
 

src/fixed.c

@@ -1,6 +1,7 @@
 /*
  * Twin - A Tiny Window System
  * Copyright (c) 2004 Keith Packard <[email protected]>
+ * Copyright (c) 2024 National Cheng Kung University, Taiwan
  * All rights reserved.
  */
 

src/matrix.c

@@ -1,6 +1,7 @@
 /*
  * Twin - A Tiny Window System
  * Copyright (c) 2004 Keith Packard <[email protected]>
+ * Copyright (c) 2024 National Cheng Kung University, Taiwan
  * All rights reserved.
  */
 
@@ -11,9 +12,9 @@ void twin_matrix_multiply(twin_matrix_t *result,
                           const twin_matrix_t *b)
 {
     twin_matrix_t r;
-    twin_fixed_t t;
 
-    for (int row = 0; row < 3; row++)
+    for (int row = 0; row < 3; row++) {
+        twin_fixed_t t;
         for (int col = 0; col < 2; col++) {
             if (row == 2)
                 t = b->m[2][col];
@@ -23,6 +24,7 @@ void twin_matrix_multiply(twin_matrix_t *result,
                 t += twin_fixed_mul(a->m[row][n], b->m[n][col]);
             r.m[row][col] = t;
         }
+    }
 
     *result = r;
 }
@@ -72,14 +74,13 @@ void twin_matrix_scale(twin_matrix_t *m, twin_fixed_t sx, twin_fixed_t sy)
 twin_fixed_t _twin_matrix_determinant(twin_matrix_t *matrix)
 {
     twin_fixed_t a, b, c, d;
-    twin_fixed_t det;
 
     a = matrix->m[0][0];
     b = matrix->m[0][1];
     c = matrix->m[1][0];
     d = matrix->m[1][1];
 
-    det = twin_fixed_mul(a, d) - twin_fixed_mul(b, c);
+    twin_fixed_t det = twin_fixed_mul(a, d) - twin_fixed_mul(b, c);
 
     return det;
 }
@@ -99,31 +100,32 @@ twin_point_t _twin_matrix_expand(twin_matrix_t *matrix)
 
 void twin_matrix_rotate(twin_matrix_t *m, twin_angle_t a)
 {
-    twin_matrix_t t;
     twin_fixed_t c, s;
     twin_sincos(a, &s, &c);
 
-    t.m[0][0] = c;
-    t.m[0][1] = s;
-    t.m[1][0] = -s;
-    t.m[1][1] = c;
-    t.m[2][0] = 0;
-    t.m[2][1] = 0;
+    twin_matrix_t t = {
+        .m[0][0] = c,
+        .m[0][1] = s,
+        .m[1][0] = -s,
+        .m[1][1] = c,
+        .m[2][0] = 0,
+        .m[2][1] = 0,
+    };
     twin_matrix_multiply(m, &t, m);
 }
 
 twin_sfixed_t _twin_matrix_x(twin_matrix_t *m, twin_fixed_t x, twin_fixed_t y)
 {
-    twin_sfixed_t s;
-    s = twin_fixed_to_sfixed(twin_fixed_mul(m->m[0][0], x) +
+    twin_sfixed_t s =
+        twin_fixed_to_sfixed(twin_fixed_mul(m->m[0][0], x) +
                              twin_fixed_mul(m->m[1][0], y) + m->m[2][0]);
     return s;
 }
 
 twin_sfixed_t _twin_matrix_y(twin_matrix_t *m, twin_fixed_t x, twin_fixed_t y)
 {
-    twin_sfixed_t s;
-    s = twin_fixed_to_sfixed(twin_fixed_mul(m->m[0][1], x) +
+    twin_sfixed_t s =
+        twin_fixed_to_sfixed(twin_fixed_mul(m->m[0][1], x) +
                              twin_fixed_mul(m->m[1][1], y) + m->m[2][1]);
     return s;
 }

src/path.c

@@ -1,6 +1,7 @@
 /*
  * Twin - A Tiny Window System
  * Copyright (c) 2004 Keith Packard <[email protected]>
+ * Copyright (c) 2024 National Cheng Kung University, Taiwan
  * All rights reserved.
  */
 

src/pixmap.c

@@ -1,6 +1,7 @@
 /*
  * Twin - A Tiny Window System
  * Copyright (c) 2004 Keith Packard <[email protected]>
+ * Copyright (c) 2024-2025 National Cheng Kung University, Taiwan
  * All rights reserved.
  */
 
@@ -13,6 +14,7 @@
     (((alignment) & ((alignment) - 1)) == 0                \
          ? (((sz) + (alignment) - 1) & ~((alignment) - 1)) \
          : ((((sz) + (alignment) - 1) / (alignment)) * (alignment)))
+
 twin_pixmap_t *twin_pixmap_create(twin_format_t format,
                                   twin_coord_t width,
                                   twin_coord_t height)

src/poly.c

@@ -1,6 +1,7 @@
 /*
  * Twin - A Tiny Window System
  * Copyright (c) 2004 Keith Packard <[email protected]>
+ * Copyright (c) 2024 National Cheng Kung University, Taiwan
  * All rights reserved.
  */
 

src/queue.c

@@ -1,6 +1,7 @@
 /*
  * Twin - A Tiny Window System
  * Copyright (c) 2004 Keith Packard <[email protected]>
+ * Copyright (c) 2024 National Cheng Kung University, Taiwan
  * All rights reserved.
  */
 
@@ -17,6 +18,7 @@ void _twin_queue_insert(twin_queue_t **head,
     for (prev = head; (q = *prev); prev = &q->next)
         if ((*proc)(new, q) == TWIN_AFTER)
             break;
+
     new->next = *prev;
     new->order = 0;
     new->deleted = false;
@@ -59,9 +61,8 @@ twin_queue_t *_twin_queue_set_order(twin_queue_t **head)
 {
     twin_queue_t *first = *head;
 
-    for (twin_queue_t *q = first; q; q = q->next) {
+    for (twin_queue_t *q = first; q; q = q->next)
         q->order = q->next;
-    }
     return first;
 }
 

src/screen.c

@@ -1,6 +1,7 @@
 /*
  * Twin - A Tiny Window System
  * Copyright (c) 2004 Keith Packard <[email protected]>
+ * Copyright (c) 2024-2025 National Cheng Kung University, Taiwan
  * All rights reserved.
  */
 

src/spline.c

@@ -1,6 +1,7 @@
 /*
  * Twin - A Tiny Window System
  * Copyright (c) 2004 Carl Worth <[email protected]>
+ * Copyright (c) 2024 National Cheng Kung University, Taiwan
  * All rights reserved.
  */
 

src/trig.c

@@ -1,6 +1,7 @@
 /*
  * Twin - A Tiny Window System
  * Copyright (c) 2004 Keith Packard <[email protected]>
+ * Copyright (c) 2024 National Cheng Kung University, Taiwan
  * All rights reserved.
  */
 
@@ -34,6 +35,7 @@ twin_fixed_t twin_tan(twin_angle_t a)
     }
     if (s == 0)
         return 0;
+
     return ((s << 15) / c) << 1;
 }
 
@@ -124,7 +126,9 @@ static twin_angle_t twin_atan2_first_quadrant(twin_fixed_t y, twin_fixed_t x)
         return TWIN_ANGLE_90;
     if (y == 0)
         return TWIN_ANGLE_0;
+
     twin_angle_t angle = 0;
+
     /* CORDIC iteration */
     /*
      * To enhance accuracy, the angle is mapped from the range 0-360 degrees to
@@ -143,6 +147,7 @@ static twin_angle_t twin_atan2_first_quadrant(twin_fixed_t y, twin_fixed_t x)
             angle -= atan_table[i];
         }
     }
+
     return (twin_angle_t) (double) angle / (32768.0) * TWIN_ANGLE_360;
 }
 
@@ -154,6 +159,7 @@ twin_angle_t twin_atan2(twin_fixed_t y, twin_fixed_t x)
         return (y > 0) ? TWIN_ANGLE_90 : TWIN_ANGLE_270;
     if (y == 0)
         return (x > 0) ? TWIN_ANGLE_0 : TWIN_ANGLE_180;
+
     twin_fixed_t x_sign_mask = x >> 31;
     twin_fixed_t abs_x = (x ^ x_sign_mask) - x_sign_mask;
     twin_fixed_t y_sign_mask = y >> 31;
@@ -164,6 +170,7 @@ twin_angle_t twin_atan2(twin_fixed_t y, twin_fixed_t x)
                      ((~x_sign_mask & y_sign_mask) * 2);
     twin_fixed_t sign = 1 - 2 * (x_sign_mask ^ y_sign_mask);
     twin_angle_t angle = twin_atan2_first_quadrant(abs_y, abs_x);
+
     /* First quadrant  : angle
      * Second quadrant : 180 - angle
      * Third quadrant  : 180 + angle
@@ -178,6 +185,7 @@ twin_angle_t twin_acos(twin_fixed_t x)
         return TWIN_ANGLE_180;
     if (x >= TWIN_FIXED_ONE)
         return TWIN_ANGLE_0;
+
     twin_fixed_t y = twin_fixed_sqrt(TWIN_FIXED_ONE - twin_fixed_mul(x, x));
     if (x < 0)
         return TWIN_ANGLE_180 - twin_atan2_first_quadrant(y, -x);

src/widget.c

@@ -1,6 +1,7 @@
 /*
  * Twin - A Tiny Window System
  * Copyright (c) 2004 Keith Packard <[email protected]>
+ * Copyright (c) 2024-2025 National Cheng Kung University, Taiwan
  * All rights reserved.
  */
 
@@ -117,6 +118,7 @@ void _twin_widget_init(twin_widget_t *widget,
         window = parent->widget.window;
     } else
         widget->next = NULL;
+
     widget->window = window;
     widget->parent = parent;
     widget->copy_geom = NULL;
@@ -137,6 +139,7 @@ void _twin_widget_queue_paint(twin_widget_t *widget)
     while (widget->parent) {
         if (widget->paint)
             return;
+
         widget->paint = true;
         widget = &widget->parent->widget;
     }
@@ -148,6 +151,7 @@ void _twin_widget_queue_layout(twin_widget_t *widget)
     while (widget->parent) {
         if (widget->layout)
             return;
+
         widget->layout = true;
         widget->paint = true;
         widget = &widget->parent->widget;
@@ -179,6 +183,7 @@ void _twin_widget_bevel(twin_widget_t *widget, twin_fixed_t b, bool down)
             top_color = 0x80808080;
             bot_color = 0x80000000;
         }
+
         twin_path_move(path, 0, 0);
         twin_path_draw(path, w, 0);
         twin_path_draw(path, w - b, b);

src/window.c

@@ -1,6 +1,7 @@
 /*
  * Twin - A Tiny Window System
  * Copyright (c) 2004 Keith Packard <[email protected]>
+ * Copyright (c) 2024-2025 National Cheng Kung University, Taiwan
  * All rights reserved.
  */
 

tools/font-edit/twin-fedit.c

@@ -1,5 +1,6 @@
 /*
  * Copyright (c) 2004 Keith Packard
+ * Copyright (c) 2024-2025 National Cheng Kung University, Taiwan
  *
  * Permission to use, copy, modify, distribute, and sell this software and its
  * documentation for any purpose is hereby granted without fee, provided that