From 085b539d34e7a6bbdda9bf36b0384882fbe88a09 Mon Sep 17 00:00:00 2001
From: robijn <robijn@users.sourceforge.net>
Date: Fri, 8 Feb 2002 00:05:02 +0000
Subject: [PATCH] Lib update. Added vbar and hbar functions that use a
 statically defined custom charset. Let the lib heartbeat function use the new
 icon function.

---
 server/drivers/lcd_lib.c | 74 ++++++++++++++++++++++++++++++++++++----
 server/drivers/lcd_lib.h |  4 +++
 2 files changed, 71 insertions(+), 7 deletions(-)

diff --git a/server/drivers/lcd_lib.c b/server/drivers/lcd_lib.c
index 2be8b05..1c10b73 100644
--- a/server/drivers/lcd_lib.c
+++ b/server/drivers/lcd_lib.c
@@ -1,13 +1,9 @@
 #include <stdlib.h>
-#include <stdio.h>
 #include <unistd.h>
-#include <termios.h>
-#include <fcntl.h>
 #include <string.h>
-#include <sys/errno.h>
 
 #include "lcd.h"
-#include "render.h"
+
 
 // ==================================================
 // LCD library of useful functions for drivers
@@ -18,7 +14,6 @@
 
 // TODO: What should this really be?  Probably should be in the
 // driver code or headers or something...
-#define MAX_CUSTOM_CHARS 16
 
 /*
 ANY DRIVER SHOULD SIMPLY FREE ITS FRAMEBUFFER AT CLOSE()
@@ -148,10 +143,75 @@ output_heartbeat (struct lcd_logical_driver *driver, int type) {
 		*/
 
 		// change display...
-		driver->flush (driver);
+		//driver->flush (driver);
 	}
 
 	timer++;
 	timer &= 0x0f;
 }
 
+
+void
+lib_hbar_static (Driver *drvthis, int x, int y, int len, int promille, int options, int cellwidth, int cc_offset)
+/*
+ * This function places a hbar using the v0.5 API format and the given cellwidth.
+ * It assumes that custom chars have been statically defined, so that number
+ * 1 has 1 pixel, number 2 has 2 etc...
+ * LCDs that have the custom chars at other char numbers than 0 should put the
+ * first custom char number in cc_offset.
+ */
+{
+	int total_pixels  = ((long) 2 * len * cellwidth + 1 ) * promille / 2000;
+	int pos;
+
+	for (pos = 0; pos < len; pos ++ ) {
+
+		int pixels = total_pixels - cellwidth * pos;
+
+		if( pixels >= cellwidth ) {
+			/* write a "full" block to the screen... */
+			drvthis->icon (drvthis, x+pos, y, ICON_BLOCK_FILLED);
+		}
+		else if( pixels > 0 ) {
+			/* write a partial block... */
+			drvthis->chr (drvthis, x+pos, y, pixels + cc_offset);
+			break;
+		}
+		else {
+			; /* write nothing (not even a space) */
+		}
+	}
+}
+
+
+void
+lib_vbar_static (Driver *drvthis, int x, int y, int len, int promille, int options, int cellheight, int cc_offset)
+/*
+ * This function places a vbar using the v0.5 API format and the given cellwidth.
+ * It assumes that custom chars have been statically defined, so that number
+ * 1 has 1 pixel, number 2 has 2 etc., just like in good old times...
+ * LCDs that have the custom chars at other char numbers than 0 should put the
+ * first custom char number in cc_offset.
+ */
+{
+	int total_pixels = ((long) 2 * len * cellheight + 1 ) * promille / 2000;
+	int pos;
+
+	for (pos = 0; pos < len; pos ++ ) {
+
+		int pixels = total_pixels - cellheight * pos;
+
+		if( pixels >= cellheight ) {
+			/* write a "full" block to the screen... */
+			drvthis->icon (drvthis, x, y-pos, ICON_BLOCK_FILLED);
+		}
+		else if( pixels > 0 ) {
+			/* write a partial block... */
+			drvthis->chr (drvthis, x, y-pos, pixels + cc_offset);
+			break;
+		}
+		else {
+			; /* write nothing (not even a space) */
+		}
+	}
+}
diff --git a/server/drivers/lcd_lib.h b/server/drivers/lcd_lib.h
index 00d1336..c5ccb8d 100644
--- a/server/drivers/lcd_lib.h
+++ b/server/drivers/lcd_lib.h
@@ -7,5 +7,9 @@
 
 int new_framebuf (struct lcd_logical_driver *driver, char *oldbuf);
 
+void output_heartbeat (struct lcd_logical_driver *driver, int type);
+void lib_hbar_static (Driver *drvthis, int x, int y, int len, int promille, int options, int cellwidth, int cc_offset);
+void lib_vbar_static (Driver *drvthis, int x, int y, int len, int promille, int options, int cellheight, int cc_offset);
+
 #endif