From 14a16b9f66c6e8c144f300e07d0ddb5b6787a11a Mon Sep 17 00:00:00 2001
From: reinelt <>
Date: Wed, 18 Feb 2004 06:39:20 +0000
Subject: [lcd4linux @ 2004-02-18 06:39:20 by reinelt] T6963 driver for graphic
 displays finished

---
 cfg.c                 |   7 +++-
 drv_T6963.c           | 106 ++++++++++++++++++++++++++++++++++----------------
 drv_generic_graphic.c |  72 +++++++++++++++++-----------------
 drv_generic_graphic.h |  14 ++++---
 drv_generic_text.h    |   7 +++-
 lcd4linux.conf.sample |  30 +++++++++++++-
 widget.c              |   7 +++-
 widget_text.c         |   7 +++-
 8 files changed, 167 insertions(+), 83 deletions(-)

diff --git a/cfg.c b/cfg.c
index fd94052..355022b 100644
--- a/cfg.c
+++ b/cfg.c
@@ -1,4 +1,4 @@
-/* $Id: cfg.c,v 1.33 2004/02/01 18:08:50 reinelt Exp $^
+/* $Id: cfg.c,v 1.34 2004/02/18 06:39:20 reinelt Exp $^
  *
  * config file stuff
  *
@@ -23,6 +23,9 @@
  *
  *
  * $Log: cfg.c,v $
+ * Revision 1.34  2004/02/18 06:39:20  reinelt
+ * T6963 driver for graphic displays finished
+ *
  * Revision 1.33  2004/02/01 18:08:50  reinelt
  * removed strtok() from layout processing (took me hours to find this bug)
  * further strtok() removind should be done!
@@ -464,7 +467,7 @@ char *l4l_cfg_get (char *section, char *key, char *defval)
       return R2S(&result);
     }
   }
-  return defval;
+  return strdup(defval);
 }
 
 
diff --git a/drv_T6963.c b/drv_T6963.c
index 2706805..5a0e6a7 100644
--- a/drv_T6963.c
+++ b/drv_T6963.c
@@ -1,4 +1,4 @@
-/* $Id: drv_T6963.c,v 1.1 2004/02/15 21:43:43 reinelt Exp $
+/* $Id: drv_T6963.c,v 1.2 2004/02/18 06:39:20 reinelt Exp $
  *
  * new style driver for T6963-based displays
  *
@@ -23,6 +23,9 @@
  *
  *
  * $Log: drv_T6963.c,v $
+ * Revision 1.2  2004/02/18 06:39:20  reinelt
+ * T6963 driver for graphic displays finished
+ *
  * Revision 1.1  2004/02/15 21:43:43  reinelt
  * T6963 driver nearly finished
  * framework for graphic displays done
@@ -81,6 +84,8 @@ static unsigned char SIGNAL_CD;
 static unsigned char SIGNAL_RD;
 static unsigned char SIGNAL_WR;
 
+unsigned char *Buffer1, *Buffer2;
+
 // Fixme:
 static int bug=0;
 
@@ -261,14 +266,14 @@ static void drv_T6_send_word (unsigned char cmd, unsigned short data)
 }
 
 
-static void drv_T6_memset(unsigned short addr, unsigned char data, int len)
+static void drv_T6_clear(unsigned short addr, int len)
 {
   int i;
   
   drv_T6_send_word (0x24, addr);      // Set Adress Pointer
   drv_T6_write_cmd(0xb0);             // Set Data Auto Write
   for (i=0; i<len; i++) {
-    drv_T6_write_auto(data);
+    drv_T6_write_auto(0);
     if (bug) {
       bug=0;
       debug("bug occured at byte %d of %d", i, len);
@@ -279,7 +284,7 @@ static void drv_T6_memset(unsigned short addr, unsigned char data, int len)
 }
 
 
-static void drv_T6_memcpy(unsigned short addr, unsigned char *data, int len)
+static void drv_T6_copy(unsigned short addr, unsigned char *data, int len)
 {
   int i;
   
@@ -293,14 +298,51 @@ static void drv_T6_memcpy(unsigned short addr, unsigned char *data, int len)
     }
   }
   drv_T6_status2();
-  drv_T6_write_cmd(0xb2);                // Auto Reset
+  drv_T6_write_cmd(0xb2);  // Auto Reset
 }
 
 
+static void drv_T6_blit(int row, int col, int height, int width)
+{
+  int i, j, e, m;
+  int r, c;
+
+  for (r=row; r<row+height; r++) {
+    for (c=col; c<col+width; c++) {
+      unsigned char mask = 1<<(XRES-1-c%XRES);
+      //if (c<8) debug ("c=%d c%%XRES=%d mask=%d", c, c%XRES, mask); 
+      if (drv_generic_graphic_FB[r*LCOLS+c]) {
+	// set bit
+	Buffer1[(r*DCOLS+c)/XRES] |=  mask;
+      } else {
+	// clear bit
+	Buffer1[(r*DCOLS+c)/XRES] &= ~mask;
+      }
+    }
+  }
+  
+  // max address
+  m=((row+height)*DCOLS+col+width)/XRES;
+  
+  for (i=(row*DCOLS+col)/XRES; i<=m; i++) {
+    if (Buffer1[i]==Buffer2[i]) continue;
+    for (j=i, e=0; i<=m; i++) {
+      if (Buffer1[i]==Buffer2[i]) {
+	if (++e>4) break;
+      } else {
+	e=0;
+      }
+    }
+    memcpy (Buffer2+j, Buffer1+j, i-j-e+1);
+    drv_T6_copy (j, Buffer1+j, i-j-e+1);
+    // sleep (1);
+  }
+}
+
 static int drv_T6_start (char *section)
 {
   char *model, *s;
-  int rows, cols;
+  int rows, TROWS, TCOLS;
   
   model=cfg_get(section, "Model", "generic");
   if (model!=NULL && *model!='\0') {
@@ -319,6 +361,7 @@ static int drv_T6_start (char *section)
     return -1;
   }
 
+  // read display size from config
   s=cfg_get(section, "Size", NULL);
   if (s==NULL || *s=='\0') {
     error ("%s: no '%s.Size' entry from %s", Name, section, cfg_source());
@@ -332,19 +375,25 @@ static int drv_T6_start (char *section)
     return -1;
   }
   
-  s=cfg_get(section, "Font", "6x8");
-  if (s==NULL || *s=='\0') {
-    error ("%s: no '%s.Font' entry from %s", Name, section, cfg_source());
+  TROWS=DROWS/8;  // text rows, assume 6x8 font
+  TCOLS=DCOLS/6;  // text cols, assume 6x8 font
+
+  Buffer1=malloc(DCOLS*TROWS);
+  if (Buffer1==NULL) {
+    error ("%s: framebuffer #1 could not be allocated: malloc() failed", Name);
     return -1;
   }
 
-  XRES = -1;
-  YRES = -1;
-  if (sscanf(s, "%dx%d", &XRES, &YRES)!=2 || XRES<1 || YRES<1) {
-    error ("%s: bad Font '%s' from %s", Name, s, cfg_source());
+  Buffer2=malloc(DCOLS*TROWS);
+  if (Buffer2==NULL) {
+    error ("%s: framebuffer #2 could not be allocated: malloc() failed", Name);
     return -1;
   }
+
+  memset(Buffer1,0,TCOLS*DROWS*sizeof(*Buffer1));
+  memset(Buffer2,0,TCOLS*DROWS*sizeof(*Buffer2));
   
+
   if (drv_generic_parport_open(section, Name) != 0) {
     error ("%s: could not initialize parallel port!", Name);
     return -1;
@@ -362,15 +411,12 @@ static int drv_T6_start (char *section)
   drv_generic_parport_direction (0);
   
   // initialize display
-  
-  rows=DROWS/8; // text rows, assume 6x8 font
-  cols=DCOLS/6; // text cols, assume 6x8 font
 
   drv_T6_send_word (0x40, 0x0000);    // Set Text Home Address
-  drv_T6_send_word (0x41, cols);      // Set Text Area
+  drv_T6_send_word (0x41, TCOLS);     // Set Text Area
   
   drv_T6_send_word (0x42, 0x0200);    // Set Graphic Home Address
-  drv_T6_send_word (0x43, cols);      // Set Graphic Area
+  drv_T6_send_word (0x43, TCOLS);     // Set Graphic Area
   
   drv_T6_write_cmd (0x80);            // Mode Set: OR mode, Internal CG RAM mode
   drv_T6_send_word (0x22, 0x0002);    // Set Offset Register
@@ -382,17 +428,17 @@ static int drv_T6_start (char *section)
   // clear display
   
   // upper half
-  if (rows>8) rows=8;
-  drv_T6_memset(0x0000, 0, cols*rows);    // clear text area 
-  drv_T6_memset(0x0200, 0, cols*rows*8);  // clear graphic area
+  rows=TROWS>8?8:TROWS;
+  drv_T6_clear(0x0000, TCOLS*rows);    // clear text area 
+  drv_T6_clear(0x0200, TCOLS*rows*8);  // clear graphic area
   
   // lower half
-  if (DROWS>8*8) {
-    rows=DROWS/8-8;
-    drv_T6_memset(0x8000, 0, cols*rows);    // clear text area #2
-    drv_T6_memset(0x8200, 0, cols*rows*8);  // clear graphic area #2
+  if (TROWS>8) {
+    rows=TROWS-8;
+    drv_T6_clear(0x8000, TCOLS*rows);    // clear text area #2
+    drv_T6_clear(0x8200, TCOLS*rows*8);  // clear graphic area #2
   }
-  
+
   return 0;
 }
 
@@ -437,14 +483,8 @@ int drv_T6_init (char *section)
   WIDGET_CLASS wc;
   int ret;  
   
-  // display preferences
-  GOTO_COST = 2;  // number of bytes a goto command requires
-  
   // real worker functions
-  // Fixme: which one?
-  // drv_generic_text_real_write   = drv_T6_write;
-  // drv_generic_text_real_goto    = drv_T6_goto;
-  // drv_generic_text_real_defchar = drv_T6_defchar;
+  drv_generic_graphic_real_blit   = drv_T6_blit;
   
   // start display
   if ((ret=drv_T6_start (section))!=0)
diff --git a/drv_generic_graphic.c b/drv_generic_graphic.c
index 058b83c..ac27be9 100644
--- a/drv_generic_graphic.c
+++ b/drv_generic_graphic.c
@@ -23,6 +23,9 @@
  *
  *
  * $Log: drv_generic_graphic.c,v $
+ * Revision 1.2  2004/02/18 06:39:20  reinelt
+ * T6963 driver for graphic displays finished
+ *
  * Revision 1.1  2004/02/15 21:43:43  reinelt
  * T6963 driver nearly finished
  * framework for graphic displays done
@@ -71,10 +74,8 @@ static char *Driver=NULL;
 int DROWS, DCOLS; // display size (pixels!)
 int LROWS, LCOLS; // layout size  (pixels!)
 int XRES,  YRES;  // pixels of one char cell
-int GOTO_COST;    // number of bytes a goto command requires
 
-static unsigned char *LayoutFB  = NULL;
-static unsigned char *DisplayFB = NULL;
+unsigned char *drv_generic_graphic_FB = NULL;
 
 
 // ****************************************
@@ -99,27 +100,21 @@ static void drv_generic_graphic_resizeFB (int rows, int cols)
   memset (newFB, 0, rows*cols*sizeof(char));
   
   // transfer contents
-  if (LayoutFB!=NULL) {
+  if (drv_generic_graphic_FB!=NULL) {
     for (row=0; row<LROWS; row++) {
       for (col=0; col<LCOLS; col++) {
-	newFB[row*cols+col]=LayoutFB[row*LCOLS+col];
+	newFB[row*cols+col]=drv_generic_graphic_FB[row*LCOLS+col];
       }
     }
-    free (LayoutFB);
+    free (drv_generic_graphic_FB);
   }
-  LayoutFB = newFB;
+  drv_generic_graphic_FB = newFB;
   
   LCOLS    = cols;
   LROWS    = rows;
 }
 
 
-static void drv_generic_graphic_flush (int row0, int col0, int rows, int cols)
-{
-  debug ("flushing from (%d, %d) size (%d, %d)", row0, col0, rows, cols);
-}
-
-
 int drv_generic_graphic_draw (WIDGET *W)
 {
   WIDGET_TEXT *Text=W->data;
@@ -142,7 +137,7 @@ int drv_generic_graphic_draw (WIDGET *W)
       int mask=1<<XRES;
       for (x=0; x<XRES; x++) {
 	mask>>=1;
-	LayoutFB[(row+y)*LCOLS+col+x] = Font_6x8[c][y]&mask ? 1:0;
+	drv_generic_graphic_FB[(row+y)*LCOLS+col+x] = Font_6x8[c][y]&mask ? 1:0;
       }
     }
     col+=XRES;
@@ -150,7 +145,7 @@ int drv_generic_graphic_draw (WIDGET *W)
   }
   
   // flush area
-  drv_generic_graphic_flush (row, col, YRES, XRES*len);
+  drv_generic_graphic_real_blit (YRES*W->row, XRES*W->col, YRES, XRES*len);
   
   return 0;
 }
@@ -178,12 +173,12 @@ int drv_generic_graphic_icon_draw (WIDGET *W)
     int mask=1<<XRES;
     for (x=0; x<XRES; x++) {
       mask>>=1;
-      DisplayFB[(row+y)*LCOLS+col+x] = Icon->visible ? 0 : bitmap[y]&mask ? 1 : 0;
+      drv_generic_graphic_FB[(row+y)*LCOLS+col+x] = Icon->visible ? 0 : bitmap[y]&mask ? 1 : 0;
     }
   }
 
   // flush area
-  drv_generic_graphic_flush (row, col, YRES, XRES);
+  drv_generic_graphic_real_blit (row, col, YRES, XRES);
 
   return 0;
   
@@ -236,7 +231,7 @@ int drv_generic_graphic_bar_draw (WIDGET *W)
     for (y=0; y<YRES; y++) {
       len=y<YRES/2 ? val1 : val2;
       for (x=0; x<max; x++) {
-	LayoutFB[(row+y)*LCOLS+col+x] = x<len ? !rev : rev;
+	drv_generic_graphic_FB[(row+y)*LCOLS+col+x] = x<len ? !rev : rev;
       }
     }
     break;
@@ -250,7 +245,7 @@ int drv_generic_graphic_bar_draw (WIDGET *W)
     for (y=0; y<max; y++) {
       for (x=0; x<XRES; x++) {
 	len=x<XRES/2 ? val1 : val2;
-  	LayoutFB[(row+y)*LCOLS+col+x] = y<len ? !rev : rev;
+  	drv_generic_graphic_FB[(row+y)*LCOLS+col+x] = y<len ? !rev : rev;
       }
     }
     break;
@@ -258,9 +253,9 @@ int drv_generic_graphic_bar_draw (WIDGET *W)
   
   // flush area
   if (dir & (DIR_EAST|DIR_WEST)) {
-    drv_generic_graphic_flush (row, col, YRES, XRES*len);
+    drv_generic_graphic_real_blit (row, col, YRES, XRES*len);
   } else {
-    drv_generic_graphic_flush (row, col, YRES*len, XRES);
+    drv_generic_graphic_real_blit (row, col, YRES*len, XRES);
   }
 
   return 0;
@@ -273,21 +268,32 @@ int drv_generic_graphic_bar_draw (WIDGET *W)
 
 int drv_generic_graphic_init (char *section, char *driver)
 {
+  char *font;
+  
   Section=section;
   Driver=driver;
-
-  // init display framebuffer
-  DisplayFB = malloc(DCOLS*DROWS*sizeof(char));
-  memset (DisplayFB, 0, DROWS*DCOLS*sizeof(char));
   
+  font=cfg_get(section, "Font", "6x8");
+  if (font==NULL || *font=='\0') {
+    error ("%s: no '%s.Font' entry from %s", Driver, section, cfg_source());
+    return -1;
+  }
+
+  XRES = -1;
+  YRES = -1;
+  if (sscanf(font, "%dx%d", &XRES, &YRES)!=2 || XRES<1 || YRES<1) {
+    error ("%s: bad Font '%s' from %s", Driver, font, cfg_source());
+    return -1;
+  }
+
   // init layout framebuffer
   LROWS = 0;
   LCOLS = 0;
-  LayoutFB=NULL;
+  drv_generic_graphic_FB=NULL;
   drv_generic_graphic_resizeFB (DROWS, DCOLS);
   
   // sanity check
-  if (LayoutFB==NULL || DisplayFB==NULL) {
+  if (drv_generic_graphic_FB==NULL) {
     error ("%s: framebuffer could not be allocated: malloc() failed", Driver);
     return -1;
   }
@@ -298,15 +304,9 @@ int drv_generic_graphic_init (char *section, char *driver)
 
 int drv_generic_graphic_quit (void) 
 {
-  
-  if (LayoutFB) {
-    free(LayoutFB);
-    LayoutFB=NULL;
-  }
-  
-  if (DisplayFB) {
-    free(DisplayFB);
-    DisplayFB=NULL;
+  if (drv_generic_graphic_FB) {
+    free(drv_generic_graphic_FB);
+    drv_generic_graphic_FB=NULL;
   }
   
   return (0);
diff --git a/drv_generic_graphic.h b/drv_generic_graphic.h
index 3850b7f..209e1a8 100644
--- a/drv_generic_graphic.h
+++ b/drv_generic_graphic.h
@@ -1,4 +1,4 @@
-/* $Id: drv_generic_graphic.h,v 1.1 2004/02/15 21:43:43 reinelt Exp $
+/* $Id: drv_generic_graphic.h,v 1.2 2004/02/18 06:39:20 reinelt Exp $
  *
  * generic driver helper for graphic displays
  *
@@ -23,6 +23,9 @@
  *
  *
  * $Log: drv_generic_graphic.h,v $
+ * Revision 1.2  2004/02/18 06:39:20  reinelt
+ * T6963 driver for graphic displays finished
+ *
  * Revision 1.1  2004/02/15 21:43:43  reinelt
  * T6963 driver nearly finished
  * framework for graphic displays done
@@ -50,13 +53,14 @@
 extern int DROWS, DCOLS; // display size
 extern int LROWS, LCOLS; // layout size
 extern int XRES,  YRES;  // pixel width/height of one char 
-extern int GOTO_COST;    // number of bytes a goto command requires
 
-// these functions must be implemented by the real driver
-// Fixme:
-void (*drv_generic_graphic_real_memcpy)(void);
+// framebuffer
+extern unsigned char *drv_generic_graphic_FB;
 
+// these functions must be implemented by the real driver
+void (*drv_generic_graphic_real_blit)(int row, int col, int height, int width);
 
+// generic functions and widget callbacks
 int  drv_generic_graphic_init            (char *section, char *driver);
 int  drv_generic_graphic_draw            (WIDGET *W);
 int  drv_generic_graphic_icon_draw       (WIDGET *W);
diff --git a/drv_generic_text.h b/drv_generic_text.h
index f6c8099..05d7fd5 100644
--- a/drv_generic_text.h
+++ b/drv_generic_text.h
@@ -1,4 +1,4 @@
-/* $Id: drv_generic_text.h,v 1.6 2004/02/15 21:43:43 reinelt Exp $
+/* $Id: drv_generic_text.h,v 1.7 2004/02/18 06:39:20 reinelt Exp $
  *
  * generic driver helper for text-based displays
  *
@@ -23,6 +23,9 @@
  *
  *
  * $Log: drv_generic_text.h,v $
+ * Revision 1.7  2004/02/18 06:39:20  reinelt
+ * T6963 driver for graphic displays finished
+ *
  * Revision 1.6  2004/02/15 21:43:43  reinelt
  * T6963 driver nearly finished
  * framework for graphic displays done
@@ -77,7 +80,7 @@ void (*drv_generic_text_real_goto)(int row, int col);
 void (*drv_generic_text_real_write)(unsigned char *buffer, int len);
 void (*drv_generic_text_real_defchar)(int ascii, unsigned char *buffer);
 
-
+// generic functions and widget callbacks
 int  drv_generic_text_init            (char *section, char *driver);
 int  drv_generic_text_draw            (WIDGET *W);
 int  drv_generic_text_icon_init       (void);
diff --git a/lcd4linux.conf.sample b/lcd4linux.conf.sample
index 73cf1fc..567970e 100644
--- a/lcd4linux.conf.sample
+++ b/lcd4linux.conf.sample
@@ -252,6 +252,13 @@ Widget Squirrel {
     }
 }
 
+Widget Test {
+    class 'Text'
+    expression '1234567890123456789012345678901234567890'
+    #expression '|'
+    width 40
+}
+
 
 Layout Default {
     Row1 {
@@ -296,6 +303,25 @@ Layout L16x2 {
 #    }
 }
 
+Layout Test {
+    Row01.Col1 'Test'
+    Row02.Col1 'Test'
+    Row03.Col1 'Test'
+    Row04.Col1 'Test'
+    Row05.Col1 'Test'
+    Row06.Col1 'Test'
+    Row07.Col1 'Test'
+    Row08.Col1 'Test'
+    Row09.Col1 'Test'
+    Row10.Col1 'Test'
+    Row11.Col1 'Test'
+    Row12.Col1 'Test'
+    Row13.Col1 'Test'
+    Row14.Col1 'Test'
+    Row15.Col1 'Test'
+    Row16.Col1 'Test'
+}
+
 #Display 'LK204'
 #Display 'HD44780-20x4'
 #Display 'M50530-24x8'
@@ -305,8 +331,10 @@ Layout L16x2 {
 #Display 'USBLCD'
 Display 'T6963-240x64'
 
-Layout  'Default'
+#Layout  'Default'
 #Layout  'L16x2'
+Layout 'Test'
+
 
 Variables {
    tick 500
diff --git a/widget.c b/widget.c
index 708b289..e7ae1d3 100644
--- a/widget.c
+++ b/widget.c
@@ -1,4 +1,4 @@
-/* $Id: widget.c,v 1.11 2004/01/30 20:57:56 reinelt Exp $
+/* $Id: widget.c,v 1.12 2004/02/18 06:39:20 reinelt Exp $
  *
  * generic widget handling
  *
@@ -21,6 +21,9 @@
  *
  *
  * $Log: widget.c,v $
+ * Revision 1.12  2004/02/18 06:39:20  reinelt
+ * T6963 driver for graphic displays finished
+ *
  * Revision 1.11  2004/01/30 20:57:56  reinelt
  * HD44780 patch from Martin Hejl
  * dmalloc integrated
@@ -141,7 +144,7 @@ int widget_add (char *name, int row, int col)
   section=malloc(strlen(name)+8);
   strcpy(section, "Widget:");
   strcat(section, name);
-  
+
   // get widget class
   class=cfg_get(section, "class", NULL);
   if (class==NULL || *class=='\0') {
diff --git a/widget_text.c b/widget_text.c
index c2112e8..a936feb 100644
--- a/widget_text.c
+++ b/widget_text.c
@@ -1,4 +1,4 @@
-/* $Id: widget_text.c,v 1.12 2004/02/09 19:49:38 nicowallmeier Exp $
+/* $Id: widget_text.c,v 1.13 2004/02/18 06:39:20 reinelt Exp $
  *
  * simple text widget handling
  *
@@ -21,6 +21,9 @@
  *
  *
  * $Log: widget_text.c,v $
+ * Revision 1.13  2004/02/18 06:39:20  reinelt
+ * T6963 driver for graphic displays finished
+ *
  * Revision 1.12  2004/02/09 19:49:38  nicowallmeier
  * Minor bugfix
  *
@@ -303,7 +306,7 @@ int widget_text_init (WIDGET *Self)
 {
   char *section; char *c;
   WIDGET_TEXT *Text;
-  
+
   // prepare config section
   // strlen("Widget:")=7
   section=malloc(strlen(Self->name)+8);
-- 
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