[lcd4linux @ 2000-03-23 07:24:48 by reinelt]

PPM driver up and running (but slow!)

1 files changed, 161 insertions, 0 deletions

diff --git a/Raster.c b/Raster.c
new file mode 100644
index 0000000..a7cac00
--- /dev/null
+++ b/Raster.c
@@ -0,0 +1,161 @@
+/* $Id: Raster.c,v 1.1 2000/03/23 07:24:48 reinelt Exp $
+ *
+ * driver for raster formats
+ *
+ * Copyright 1999, 2000 by Michael Reinelt (reinelt@eunet.at)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ *
+ * $Log: Raster.c,v $
+ * Revision 1.1  2000/03/23 07:24:48  reinelt
+ *
+ * PPM driver up and running (but slow!)
+ *
+ */
+
+/* 
+ *
+ * exported fuctions:
+ *
+ * struct DISPLAY Raster[]
+ *
+ */
+
+#include <stdlib.h>
+#include <stdio.h>
+
+#include "cfg.h"
+#include "display.h"
+#include "pixmap.h"
+
+#define BARS ( BAR_L | BAR_R | BAR_U | BAR_D | BAR_H2 | BAR_V2 )
+
+static DISPLAY Display;
+
+static int pixelsize=-1;
+static int pixelgap=0;
+static int rowgap=0;
+static int colgap=0;
+static int border=0;
+
+static int foreground=0;
+static int halfground=0;
+static int background=0;
+
+#define R(color) (0xff&((color)>>16))
+#define G(color) (0xff&((color)>>8))
+#define B(color) (0xff&((color)))
+
+int Raster_flush (void)
+{
+  int xsize, ysize;
+  int x, y, pos;
+  
+  xsize=2*border+Display.cols*Display.xres*(pixelsize+pixelgap);
+  ysize=2*border+Display.rows*Display.yres*(pixelsize+pixelgap);
+  
+  printf ("P3\n");
+  printf ("%d %d\n", xsize, ysize);
+  printf ("255\n");
+
+  pos=0;
+  
+  for (y=0; y<ysize; y++) {
+    for (x=0; x<xsize; x++) {
+      if (x<border || x>=xsize-border || 
+	  y<border || y>=ysize-border ||
+	  (y-border)%(pixelsize+pixelgap)>=pixelsize ||
+	  (x-border)%(pixelsize+pixelgap)>=pixelsize) {
+	pos+=printf ("%d %d %d ", R(background), G(background), B(background));
+      } else {
+	if (Pixmap[((y-border)/(pixelsize+pixelgap))*Display.cols*Display.xres+(x-border)/(pixelsize+pixelgap)])
+	  pos+=printf ("%d %d %d ", R(foreground), G(foreground), B(foreground));
+	else
+	  pos+=printf ("%d %d %d ", R(halfground), G(halfground), B(halfground));
+      }
+      if (pos>80) {
+	pos=0;
+	printf ("\n");
+      }
+    }
+  }
+  return 0;
+}
+
+int Raster_clear (void)
+{
+  if (pix_clear()!=0) 
+    return -1;
+
+  return 0;
+}
+
+int Raster_init (DISPLAY *Self)
+{
+  int rows=-1;
+  int cols=-1;
+
+  rows=atoi(cfg_get("rows")?:"4");
+  cols=atoi(cfg_get("columns")?:"20");
+
+  pixelsize=atoi(cfg_get("pixelsize")?:"1");
+  pixelgap=atoi(cfg_get("pixelgap")?:"0");
+  rowgap=atoi(cfg_get("rowgap")?:"0");
+  colgap=atoi(cfg_get("colgap")?:"0");
+  border=atoi(cfg_get("border")?:"0");
+
+  foreground=strtol(cfg_get("foreground")?:"000000", NULL, 16);
+  halfground=strtol(cfg_get("halfground")?:"ffffff", NULL, 16);
+  background=strtol(cfg_get("background")?:"ffffff", NULL, 16);
+
+  if (rows<1 || cols<1) {
+    fprintf (stderr, "Raster: incorrect number of rows or columns\n");
+    return -1;
+  }
+  
+  if (pixelsize<1) {
+    fprintf (stderr, "Raster: incorrect pixel size\n");
+    return -1;
+  }
+
+  if (pix_init (rows, cols)!=0) {
+    fprintf (stderr, "Raster: pix_init(%d, %d) failed\n", rows, cols);
+    return -1;
+  }
+
+  Self->rows=rows;
+  Self->cols=cols;
+  Display=*Self;
+
+  pix_clear();
+  return 0;
+}
+
+int Raster_put (int row, int col, char *text)
+{
+  return pix_put (row, col, text);
+}
+
+int Raster_bar (int type, int row, int col, int max, int len1, int len2)
+{
+  return pix_bar (type, row, col, max, len1, len2);
+}
+
+
+DISPLAY Raster[] = {
+  { "PPM", 0, 0, XRES, YRES, BARS, Raster_init, Raster_clear, Raster_put, Raster_bar, Raster_flush },
+  { "" }
+};