1 files changed, 102 insertions, 0 deletions
diff --git a/bitmap.c b/bitmap.c
new file mode 100644
index 0000000..44ebdbd
--- /dev/null
+++ b/bitmap.c
@@ -0,0 +1,102 @@
+/*
+ * targavfd plugin for VDR (C++)
+ *
+ * (C) 2010 Andreas Brachold <vdr07 AT deltab de>
+ *
+ * This targavfd plugin 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, version 3 of the License.
+ *
+ * See the files README and COPYING for details.
+ *
+ */
+
+#include <vdr/tools.h>
+#include "bitmap.h"
+
+cVFDBitmap::cVFDBitmap(int w, int h) {
+  width = w;
+  height = h;
+
+  // lines are byte aligned
+  bytesPerLine = (width + 7) / 8;
+
+ 	bitmap = MALLOC(uchar, bytesPerLine * height);
+  clear();
+}
+
+cVFDBitmap::cVFDBitmap() {
+  height = 0;
+  width = 0;
+  bitmap = NULL;
+}
+
+cVFDBitmap::~cVFDBitmap() {
+
+  if(bitmap)  
+    free(bitmap);
+  bitmap = NULL;
+}
+
+cVFDBitmap& cVFDBitmap::operator = (const cVFDBitmap& x) {
+
+  if(height != x.height
+    || width != x.width
+    || bitmap == NULL) {
+  
+    if(bitmap)  
+      free(bitmap);
+    bitmap = NULL;
+
+    height = x.height;
+    width  = x.width;
+
+    bytesPerLine = (width + 7) / 8;
+
+    if(height && width)
+    	bitmap = MALLOC(uchar, bytesPerLine * height);
+  }
+  if(x.bitmap)
+  	memcpy(bitmap, x.bitmap, bytesPerLine * height);
+  return *this;
+}
+
+bool cVFDBitmap::operator == (const cVFDBitmap& x) const {
+
+  if(height != x.height
+    || width != x.width
+    || bitmap == NULL
+    || x.bitmap == NULL)
+    return false;
+	return ((memcmp(x.bitmap, bitmap, bytesPerLine * height)) == 0);
+}
+
+
+void cVFDBitmap::clear() {
+    if (bitmap)
+      memset(bitmap, 0x00, bytesPerLine * height);
+}
+
+bool cVFDBitmap::SetPixel(int x, int y)
+{
+    unsigned char c;
+    unsigned int n;
+
+    if (!bitmap)
+        return false;
+
+    if (x >= width || x < 0)
+        return false;
+    if (y >= height || y < 0)
+        return false;
+
+    n = x + ((y / 8) * width);
+    c = 0x80 >> (y % 8);
+
+    if(n >= (bytesPerLine * height))
+        return false;
+
+    bitmap[n] |= c;
+    return true;
+}
+