1 files changed, 116 insertions, 0 deletions

diff --git a/apps/plugins/lib/grey_parm.c b/apps/plugins/lib/grey_parm.c
new file mode 100644
index 0000000000..6d605059f8
--- /dev/null
+++ b/apps/plugins/lib/grey_parm.c
@@ -0,0 +1,116 @@
+/***************************************************************************
+*             __________               __   ___.
+*   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+*   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+*   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+*   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+*                     \/            \/     \/    \/            \/
+* $Id$
+*
+* New greyscale framework
+* Parameter handling
+*
+* This is a generic framework to display 129 shades of grey on low-depth
+* bitmap LCDs (Archos b&w, Iriver & Ipod 4-grey) within plugins.
+*
+* Copyright (C) 2008 Jens Arnold
+*
+* 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 "plugin.h"
+#include "grey.h"
+
+/* Set position of the top left corner of the greyscale overlay
+   Note that depending on the target LCD, either x or y gets rounded
+   to the nearest multiple of 4 or 8 */
+void grey_set_position(int x, int y)
+{
+#if LCD_PIXELFORMAT == HORIZONTAL_PACKING
+    _grey_info.bx = (x + 4) >> 3;
+    x = 8 * _grey_info.bx;
+#else
+#if LCD_DEPTH == 1
+    _grey_info.by = (y + 4) >> 3;
+    y = 8 * _grey_info.by;
+#elif LCD_DEPTH == 2
+    _grey_info.by = (y + 2) >> 2;
+    y = 4 * _grey_info.by;
+#endif
+#endif /* LCD_PIXELFORMAT */
+    _grey_info.x = x;
+    _grey_info.y = y;
+    
+    if (_grey_info.flags & _GREY_RUNNING)
+    {
+#ifdef SIMULATOR
+        grey_deferred_lcd_update();
+        grey_update();
+#else
+        _grey_info.flags |= _GREY_DEFERRED_UPDATE;
+#endif
+    }
+}
+
+/* Set the draw mode for subsequent drawing operations */
+void grey_set_drawmode(int mode)
+{
+    _grey_info.drawmode = mode & (DRMODE_SOLID|DRMODE_INVERSEVID);
+}
+
+/* Return the current draw mode */
+int  grey_get_drawmode(void)
+{
+    return _grey_info.drawmode;
+}
+
+/* Set the foreground shade for subsequent drawing operations */
+void grey_set_foreground(unsigned brightness)
+{
+    _grey_info.fg_val = _grey_info.gvalue[brightness];
+    _grey_info.fg_brightness = brightness;
+}
+
+/* Return the current foreground shade */
+unsigned grey_get_foreground(void)
+{
+    return _grey_info.fg_brightness;
+}
+
+/* Set the background shade for subsequent drawing operations */
+void grey_set_background(unsigned brightness)
+{
+    _grey_info.bg_val = _grey_info.gvalue[brightness];
+    _grey_info.bg_brightness = brightness;
+}
+
+/* Return the current background shade */
+unsigned grey_get_background(void)
+{
+    return _grey_info.bg_brightness;
+}
+
+/* Set draw mode, foreground and background shades at once */
+void grey_set_drawinfo(int mode, unsigned fg_brightness, unsigned bg_brightness)
+{
+    grey_set_drawmode(mode);
+    grey_set_foreground(fg_brightness);
+    grey_set_background(bg_brightness);
+}
+
+/* Set font for the text output routines */
+void grey_setfont(int newfont)
+{
+    _grey_info.curfont = newfont;
+}
+
+/* Get width and height of a text when printed with the current font */
+int  grey_getstringsize(const unsigned char *str, int *w, int *h)
+{
+    return _grey_rb->font_getstringsize(str, w, h, _grey_info.curfont);
+}