Changeset 670cfcf in mainline

Timestamp:

2019-11-21T16:24:16Z (4 years ago)

Author:

Jiri Svoboda <jiri@…>

Branches:

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

Children:

38e5f36c

Parents:

8b1ce56

Message:

Optimize terminal rendering

This is pretty much equivalent of what vterm/terminal widget achieve via
surface damage tracking.

Location:

uspace/app/terminal

Files:

• terminal.c (modified) (4 diffs)
• terminal.h (modified) (2 diffs)

uspace/app/terminal/terminal.c

@@ -177 +177 @@
 {
         gfx_rect_t rect;
+        gfx_rect_t nupdate;
 
         rect.p0.x = x;
@@ -183 +184 @@
         rect.p1.y = y + h;
 
-        (void) gfx_bitmap_render(term->bmp, &rect, NULL);
+        gfx_rect_envelope(&term->update, &rect, &nupdate);
+        term->update = nupdate;
 }
 
@@ -357 +359 @@
                 update = true;
 
-        (void) update; // XXX
+        if (update) {
+                (void) gfx_bitmap_render(term->bmp, &term->update, NULL);
+
+                term->update.p0.x = 0;
+                term->update.p0.y = 0;
+                term->update.p1.x = 0;
+                term->update.p1.y = 0;
+        }
 
         fibril_mutex_unlock(&term->mtx);
@@ -802 +811 @@
         term_repaint(term);
 
+        term->update.p0.x = 0;
+        term->update.p0.y = 0;
+        term->update.p1.x = 0;
+        term->update.p1.y = 0;
+
         *rterm = term;
         return EOK;

uspace/app/terminal/terminal.h

@@ -43 +43 @@
 #include <gfx/bitmap.h>
 #include <gfx/context.h>
+#include <gfx/coord.h>
 #include <io/chargrid.h>
 #include <io/con_srv.h>
@@ -58 +59 @@
         sysarg_t w;
         sysarg_t h;
+        gfx_rect_t update;
 
         fibril_mutex_t mtx;