Changeset 6301a24f in mainline

Timestamp:

2020-06-05T20:20:06Z (4 years ago)

Author:

Jiri Svoboda <jiri@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

8aef01c

Parents:

d70e7b7b

Message:

Window previews need to be drawn as part of ds_display_paint

Location:

uspace

Files:

• lib/gfx/include/gfx/coord.h (modified) (1 diff)
• lib/gfx/src/coord.c (modified) (4 diffs)
• lib/gfx/test/coord.c (modified) (3 diffs)
• srv/hid/display/display.c (modified) (1 diff)
• srv/hid/display/seat.c (modified) (2 diffs)
• srv/hid/display/window.c (modified) (12 diffs)
• srv/hid/display/window.h (modified) (1 diff)

uspace/lib/gfx/include/gfx/coord.h

@@ -54 +54 @@
 extern void gfx_rect_dims(gfx_rect_t *, gfx_coord2_t *);
 extern bool gfx_rect_is_empty(gfx_rect_t *);
+extern bool gfx_rect_is_incident(gfx_rect_t *, gfx_rect_t *);
 extern bool gfx_pix_inside_rect(gfx_coord2_t *, gfx_rect_t *);
 

uspace/lib/gfx/src/coord.c

@@ -37 +37 @@
 #include <macros.h>
 #include <stdbool.h>
+#include <stddef.h>
 
 /** Add two vectors.
@@ -192 +193 @@
  * If the two rectangles do not intersect, the result will be an empty
  * rectangle (check with gfx_rect_is_empty()). The resulting rectangle
- * is always sorted.
+ * is always sorted. If @a clip is NULL, no clipping is performed.
  *
  * @param rect Source rectangle
- * @param clip Clipping rectangle
+ * @param clip Clipping rectangle or @c NULL
  * @param dest Place to store clipped rectangle
  */
@@ -201 +202 @@
 {
         gfx_rect_t srect, sclip;
+
+        if (clip == NULL) {
+                *dest = *rect;
+                return;
+        }
 
         gfx_rect_points_sort(rect, &srect);
@@ -235 +241 @@
 }
 
+/** Determine if two rectangles share any pixels
+ *
+ * @param a First rectangle
+ * @param b Second rectangle
+ * @return @c true iff rectangles share any pixels
+ */
+bool gfx_rect_is_incident(gfx_rect_t *a, gfx_rect_t *b)
+{
+        gfx_rect_t r;
+
+        gfx_rect_clip(a, b, &r);
+        return !gfx_rect_is_empty(&r);
+}
+
 /** Get rectangle dimensions.
  *

uspace/lib/gfx/test/coord.c

@@ -560 +560 @@
 }
 
+/** Clip rectangle with no clipping rectangle */
+PCUT_TEST(rect_clip_rect_noclip)
+{
+        gfx_rect_t rect;
+        gfx_rect_t dest;
+
+        rect.p0.x = 1;
+        rect.p0.y = 2;
+        rect.p1.x = 3;
+        rect.p1.y = 4;
+
+        gfx_rect_clip(&rect, NULL, &dest);
+        PCUT_ASSERT_INT_EQUALS(rect.p0.x, dest.p0.x);
+        PCUT_ASSERT_INT_EQUALS(rect.p0.y, dest.p0.y);
+        PCUT_ASSERT_INT_EQUALS(rect.p1.x, dest.p1.x);
+        PCUT_ASSERT_INT_EQUALS(rect.p1.y, dest.p1.y);
+}
+
 /** Sort span points that are already sorted should produde indentical points */
 PCUT_TEST(rect_points_sort_sorted)
@@ -638 +656 @@
 }
 
-/** gfx_rect_is_empty for staright non-empty rectangle returns false */
+/** gfx_rect_is_empty for straight non-empty rectangle returns false */
 PCUT_TEST(rect_is_empty_neg)
 {
@@ -662 +680 @@
 }
 
+/** gfx_rect_is_incident for neighboring rectangles returns false */
+PCUT_TEST(rect_is_incident_neighbor)
+{
+        gfx_rect_t a;
+        gfx_rect_t b;
+
+        a.p0.x = 1;
+        a.p0.y = 2;
+        a.p1.x = 3;
+        a.p1.y = 4;
+
+        b.p0.x = 3;
+        b.p0.y = 2;
+        b.p1.x = 5;
+        b.p1.y = 6;
+
+        PCUT_ASSERT_FALSE(gfx_rect_is_incident(&a, &b));
+}
+
+/** gfx_rect_is_incident for a inside b returns true */
+PCUT_TEST(rect_is_incident_a_inside_b)
+{
+        gfx_rect_t a;
+        gfx_rect_t b;
+
+        a.p0.x = 2;
+        a.p0.y = 3;
+        a.p1.x = 4;
+        a.p1.y = 5;
+
+        b.p0.x = 1;
+        b.p0.y = 2;
+        b.p1.x = 5;
+        b.p1.y = 6;
+
+        PCUT_ASSERT_TRUE(gfx_rect_is_incident(&a, &b));
+}
+
+/** gfx_rect_is_incident for b inside a returns true */
+PCUT_TEST(rect_is_incident_b_inside_a)
+{
+        gfx_rect_t a;
+        gfx_rect_t b;
+
+        a.p0.x = 1;
+        a.p0.y = 2;
+        a.p1.x = 5;
+        a.p1.y = 6;
+
+        b.p0.x = 2;
+        b.p0.y = 3;
+        b.p1.x = 4;
+        b.p1.y = 5;
+
+        PCUT_ASSERT_TRUE(gfx_rect_is_incident(&a, &b));
+}
+
+/** gfx_rect_is_incident for a and b sharing corner returns true */
+PCUT_TEST(rect_is_incident_corner)
+{
+        gfx_rect_t a;
+        gfx_rect_t b;
+
+        a.p0.x = 1;
+        a.p0.y = 2;
+        a.p1.x = 3;
+        a.p1.y = 4;
+
+        b.p0.x = 2;
+        b.p0.y = 3;
+        b.p1.x = 4;
+        b.p1.y = 5;
+
+        PCUT_ASSERT_TRUE(gfx_rect_is_incident(&a, &b));
+}
+
+/** gfx_rect_is_incident for a == b returns true */
+PCUT_TEST(rect_is_incident_same)
+{
+        gfx_rect_t a;
+        gfx_rect_t b;
+
+        a.p0.x = 1;
+        a.p0.y = 2;
+        a.p1.x = 3;
+        a.p1.y = 4;
+
+        b.p0.x = 1;
+        b.p0.y = 2;
+        b.p1.x = 3;
+        b.p1.y = 4;
+
+        PCUT_ASSERT_TRUE(gfx_rect_is_incident(&a, &b));
+}
+
 /** gfx_pix_inside_rect for  */
 PCUT_TEST(pix_inside_rect)

uspace/srv/hid/display/display.c

@@ -570 +570 @@
         }
 
+        /* Paint window previews for windows being resized or moved */
+        wnd = ds_display_last_window(disp);
+        while (wnd != NULL) {
+                rc = ds_window_paint_preview(wnd, rect);
+                if (rc != EOK)
+                        return rc;
+
+                wnd = ds_display_prev_window(wnd);
+        }
+
+        /* Paint pointers */
         seat = ds_display_first_seat(disp);
         while (seat != NULL) {

uspace/srv/hid/display/seat.c

@@ -251 +251 @@
 {
         gfx_rect_t new_rect;
-        gfx_rect_t isect;
         gfx_rect_t envelope;
         errno_t rc;
@@ -257 +256 @@
         ds_seat_get_pointer_rect(seat, &new_rect);
 
-        gfx_rect_clip(old_rect, &new_rect, &isect);
-        if (gfx_rect_is_empty(&isect)) {
+        if (gfx_rect_is_incident(old_rect, &new_rect)) {
                 /* Rectangles do not intersect. Repaint them separately. */
                 rc = ds_display_paint(seat->display, &new_rect);

uspace/srv/hid/display/window.c

@@ -50 +50 @@
 
 static void ds_window_update_cb(void *, gfx_rect_t *);
+static void ds_window_get_preview_rect(ds_window_t *, gfx_rect_t *);
 
 /** Create window.
@@ -205 +206 @@
 }
 
-/** Start moving a window by mouse drag.
- *
- * @param wnd Window
- * @param pos Position where mouse button was pressed
- */
-static void ds_window_start_move(ds_window_t *wnd, gfx_coord2_t *pos)
-{
+/** Get the preview rectangle for a window.
+ *
+ * Get the preview rectangle if the window is being resized or moved.
+ * If the window is not being resized or moved, return an empty rectangle.
+ *
+ * @param wnd Window
+ * @param rect Place to store preview rectangle
+ */
+static void ds_window_get_preview_rect(ds_window_t *wnd, gfx_rect_t *rect)
+{
+        switch (wnd->state) {
+        case dsw_idle:
+                break;
+        case dsw_moving:
+                gfx_rect_translate(&wnd->preview_pos, &wnd->rect, rect);
+                return;
+        case dsw_resizing:
+                gfx_rect_translate(&wnd->dpos, &wnd->preview_rect, rect);
+                return;
+        }
+
+        rect->p0.x = 0;
+        rect->p0.y = 0;
+        rect->p1.x = 0;
+        rect->p1.y = 0;
+}
+
+/** Paint window preview if the window is being moved or resized.
+ *
+ * If the window is not being resized or moved, take no action and return
+ * success.
+ *
+ * @param wnd Window for which to paint preview
+ * @param rect Clipping rectangle
+ * @return EOK on success or an error code
+ */
+errno_t ds_window_paint_preview(ds_window_t *wnd, gfx_rect_t *rect)
+{
+        errno_t rc;
         gfx_color_t *color;
+        gfx_rect_t prect;
+        gfx_rect_t drect;
         gfx_context_t *gc;
-        gfx_rect_t drect;
-        errno_t rc;
-
-        log_msg(LOG_DEFAULT, LVL_DEBUG, "ds_window_start_move (%d, %d)",
-            (int) pos->x, (int) pos->y);
-
-        if (wnd->state != dsw_idle)
-                return;
-
-        wnd->orig_pos = *pos;
-        wnd->state = dsw_moving;
-        wnd->preview_pos = wnd->dpos;
+
+        log_msg(LOG_DEFAULT, LVL_DEBUG, "ds_window_paint_preview");
+
+        /*
+         * Get preview rectangle. If the window is not being resized/moved,
+         * we should get an empty rectangle.
+         */
+        ds_window_get_preview_rect(wnd, &prect);
+        if (gfx_rect_is_empty(&prect)) {
+                /* There is nothing to paint */
+                return EOK;
+        }
+
+        /* Clip rendering to the clipping rectangle */
+        gfx_rect_clip(&prect, rect, &drect);
 
         rc = gfx_color_new_rgb_i16(0xffff, 0xffff, 0xffff, &color);
         if (rc != EOK)
-                return;
-
-        gfx_rect_translate(&wnd->dpos, &wnd->rect, &drect);
+                return rc;
 
         gc = ds_display_get_gc(wnd->display); // XXX
@@ -240 +276 @@
 
         gfx_color_delete(color);
+        return EOK;
+}
+
+/** Repaint window preview when resizing or moving.
+ *
+ * Repaint the window preview wich was previously at rectangle @a old_rect.
+ * The current preview rectangle is determined from window state. If
+ * the window did not previously have a preview, @a old_rect should point
+ * to an empty rectangle or be NULL. When window has finished
+ * moving or resizing, the preview will be cleared.
+ *
+ * @param wnd Window for which to paint preview
+ * @param rect Clipping rectangle
+ * @return EOK on success or an error code
+ */
+static errno_t ds_window_repaint_preview(ds_window_t *wnd, gfx_rect_t *old_rect)
+{
+        errno_t rc;
+        gfx_rect_t prect;
+        gfx_rect_t envelope;
+        bool oldr;
+        bool newr;
+
+        log_msg(LOG_DEFAULT, LVL_DEBUG, "ds_window_repaint_preview");
+
+        /*
+         * Get current preview rectangle. If the window is not being resized/moved,
+         * we should get an empty rectangle.
+         */
+        ds_window_get_preview_rect(wnd, &prect);
+
+        oldr = (old_rect != NULL) && !gfx_rect_is_empty(old_rect);
+        newr = !gfx_rect_is_empty(&prect);
+
+        if (oldr && newr && gfx_rect_is_incident(old_rect, &prect)) {
+                /*
+                 * As an optimization, repaint both rectangles in a single
+                 * operation.
+                 */
+
+                gfx_rect_envelope(old_rect, &prect, &envelope);
+
+                rc = ds_display_paint(wnd->display, &envelope);
+                if (rc != EOK)
+                        return rc;
+        } else {
+                /* Repaint each rectangle separately */
+                if (oldr) {
+                        rc = ds_display_paint(wnd->display, old_rect);
+                        if (rc != EOK)
+                                return rc;
+                }
+
+                if (newr) {
+                        rc = ds_display_paint(wnd->display, &prect);
+                        if (rc != EOK)
+                                return rc;
+                }
+        }
+
+        return EOK;
+}
+
+/** Start moving a window by mouse drag.
+ *
+ * @param wnd Window
+ * @param pos Position where mouse button was pressed
+ */
+static void ds_window_start_move(ds_window_t *wnd, gfx_coord2_t *pos)
+{
+        log_msg(LOG_DEFAULT, LVL_DEBUG, "ds_window_start_move (%d, %d)",
+            (int) pos->x, (int) pos->y);
+
+        if (wnd->state != dsw_idle)
+                return;
+
+        wnd->orig_pos = *pos;
+        wnd->state = dsw_moving;
+        wnd->preview_pos = wnd->dpos;
+
+        (void) ds_window_repaint_preview(wnd, NULL);
 }
 
@@ -251 +368 @@
         gfx_coord2_t dmove;
         gfx_coord2_t nwpos;
+        gfx_rect_t old_rect;
 
         log_msg(LOG_DEFAULT, LVL_DEBUG, "ds_window_finish_move (%d, %d)",
@@ -258 +376 @@
 
         gfx_coord2_subtract(pos, &wnd->orig_pos, &dmove);
-
         gfx_coord2_add(&wnd->dpos, &dmove, &nwpos);
+
+        ds_window_get_preview_rect(wnd, &old_rect);
+
         wnd->dpos = nwpos;
         wnd->state = dsw_idle;
@@ -275 +395 @@
         gfx_coord2_t dmove;
         gfx_coord2_t nwpos;
-        gfx_rect_t drect;
-        gfx_color_t *color;
-        gfx_context_t *gc;
-        errno_t rc;
+        gfx_rect_t old_rect;
 
         log_msg(LOG_DEFAULT, LVL_DEBUG, "ds_window_update_move (%d, %d)",
@@ -285 +402 @@
         assert(wnd->state == dsw_moving);
 
-        gfx_rect_translate(&wnd->preview_pos, &wnd->rect, &drect);
-        ds_display_paint(wnd->display, &drect);
-
         gfx_coord2_subtract(pos, &wnd->orig_pos, &dmove);
-
         gfx_coord2_add(&wnd->dpos, &dmove, &nwpos);
+
+        ds_window_get_preview_rect(wnd, &old_rect);
         wnd->preview_pos = nwpos;
 
-        gfx_rect_translate(&nwpos, &wnd->rect, &drect);
-
-        rc = gfx_color_new_rgb_i16(0xffff, 0xffff, 0xffff, &color);
-        if (rc != EOK)
-                return;
-
-        gc = ds_display_get_gc(wnd->display); // XXX
-        if (gc != NULL) {
-                gfx_set_color(gc, color);
-                gfx_fill_rect(gc, &drect);
-        }
-
-        gfx_color_delete(color);
+        (void) ds_window_repaint_preview(wnd, &old_rect);
 }
 
@@ -335 +438 @@
         ctype = display_cursor_from_wrsz(rsztype);
         ds_seat_set_wm_cursor(seat, wnd->display->cursor[ctype]);
+
+        (void) ds_window_repaint_preview(wnd, NULL);
 }
 
@@ -352 +457 @@
 
         assert(wnd->state == dsw_resizing);
-
-        (void) ds_display_paint(wnd->display, NULL);
-
         gfx_coord2_subtract(pos, &wnd->orig_pos, &dresize);
 
@@ -366 +468 @@
         seat = ds_display_first_seat(wnd->display);
         ds_seat_set_wm_cursor(seat, NULL);
+
+        (void) ds_display_paint(wnd->display, NULL);
 }
 
@@ -377 +481 @@
         gfx_coord2_t dresize;
         gfx_rect_t nrect;
-        gfx_rect_t drect;
-        gfx_color_t *color;
-        gfx_context_t *gc;
-        errno_t rc;
+        gfx_rect_t old_rect;
 
         log_msg(LOG_DEFAULT, LVL_DEBUG, "ds_window_update_resize (%d, %d)",
@@ -387 +488 @@
         assert(wnd->state == dsw_resizing);
 
-        gfx_rect_translate(&wnd->dpos, &wnd->preview_rect, &drect);
-        (void) ds_display_paint(wnd->display, &drect);
-
         gfx_coord2_subtract(pos, &wnd->orig_pos, &dresize);
-
         ds_window_calc_resize(wnd, &dresize, &nrect);
-        gfx_rect_translate(&wnd->dpos, &nrect, &drect);
+
+        ds_window_get_preview_rect(wnd, &old_rect);
         wnd->preview_rect = nrect;
-
-        rc = gfx_color_new_rgb_i16(0xffff, 0xffff, 0xffff, &color);
-        if (rc != EOK)
-                return;
-
-        gc = ds_display_get_gc(wnd->display); // XXX
-        if (gc != NULL) {
-                gfx_set_color(gc, color);
-                gfx_fill_rect(gc, &drect);
-        }
-
-        gfx_color_delete(color);
+        (void) ds_window_repaint_preview(wnd, &old_rect);
 }
 

uspace/srv/hid/display/window.h

@@ -56 +56 @@
 extern gfx_context_t *ds_window_get_ctx(ds_window_t *);
 extern errno_t ds_window_paint(ds_window_t *, gfx_rect_t *);
+errno_t ds_window_paint_preview(ds_window_t *, gfx_rect_t *);
 extern errno_t ds_window_post_kbd_event(ds_window_t *, kbd_event_t *);
 extern errno_t ds_window_post_pos_event(ds_window_t *, pos_event_t *);