1 files changed, 109 insertions, 0 deletions
diff --git a/uisimulator/x11/lcd-x11.c b/uisimulator/x11/lcd-x11.c
new file mode 100644
index 0000000000..9659426f02
--- /dev/null
+++ b/uisimulator/x11/lcd-x11.c
@@ -0,0 +1,109 @@
+/***************************************************************************
+ *             __________               __   ___.                  
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___  
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /  
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <   
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \  
+ *                     \/            \/     \/    \/            \/ 
+ * $Id$
+ *
+ * Copyright (C) 2002 by Daniel Stenberg <daniel@haxx.se>
+ *
+ * All files in this archive are subject to the GNU General Public License.
+ * See the file COPYING in the source tree root for full license agreement.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+
+#include <stdio.h>
+#include <string.h>
+#include <stdarg.h>
+#include <stdlib.h>
+#include <ctype.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+
+#include <errno.h>
+#include <ctype.h>
+#include <time.h>
+
+#include "screenhack.h"
+
+/*
+ * Specific implementations for X11, using the generic LCD API and data.
+ */
+
+#include "lcd-x11.h"
+
+extern unsigned char display[LCD_WIDTH][LCD_HEIGHT/8];
+extern void screen_resized(int width, int height);
+extern Display *dpy;
+
+unsigned char display_copy[LCD_WIDTH][LCD_HEIGHT/8];
+
+void lcd_update (void)
+{
+    int x, y;
+    int p=0;
+    int bit;
+    XPoint points[LCD_WIDTH * LCD_HEIGHT];
+    int cp=0;
+    XPoint clearpoints[LCD_WIDTH * LCD_HEIGHT];
+
+#if 0
+    screen_resized(LCD_WIDTH, LCD_HEIGHT);
+
+    for(y=0; y<LCD_HEIGHT; y+=8) {
+        for(x=0; x<LCD_WIDTH; x++) {
+            if(display[x][y/8]) {
+                /* one or more bits/pixels are set */
+                for(bit=0; bit<8; bit++) {
+                    if(display[x][y/8]&(1<<bit)) {
+                        points[p].x = x + MARGIN_X;
+                        points[p].y = y+bit + MARGIN_Y;
+                        p++; /* increase the point counter */
+                    }
+                }
+            }
+        }
+    }
+#else
+    for(y=0; y<LCD_HEIGHT; y+=8) {
+        for(x=0; x<LCD_WIDTH; x++) {
+            if(display[x][y/8] || display_copy[x][y/8]) {
+                /* one or more bits/pixels are changed */
+                unsigned char diff =
+                  display[x][y/8] ^ display_copy[x][y/8];
+
+                for(bit=0; bit<8; bit++) {
+                    if(display[x][y/8]&(1<<bit)) {
+                        /* set a dot */
+                        points[p].x = x + MARGIN_X;
+                        points[p].y = y+bit + MARGIN_Y;
+                        p++; /* increase the point counter */
+                    }
+                    else if(diff &(1<<bit)) {
+                        /* clear a dot */
+                        clearpoints[cp].x = x + MARGIN_X;
+                        clearpoints[cp].y = y+bit + MARGIN_Y;
+                        cp++; /* increase the point counter */
+                    }
+                }
+            }
+        }
+    }
+
+    /* copy a huge block */
+    memcpy(display_copy, display, sizeof(display));
+
+#endif
+
+
+    drawdots(1, &points[0], p);
+    drawdots(0, &clearpoints[0], cp);
+    fprintf(stderr, "lcd_update: Draws %d pixels, clears %d pixels\n", p, cp);
+    XSync(dpy,False);
+}