00866dbf86
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@7244 a1c6a512-1295-4272-9138-f99709370657
107 lines
3.2 KiB
C
107 lines
3.2 KiB
C
/***************************************************************************
|
|
* __________ __ ___.
|
|
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
|
|
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
|
|
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
|
|
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
|
|
* \/ \/ \/ \/ \/
|
|
* $Id$
|
|
*
|
|
* Greyscale framework
|
|
* Parameter handling
|
|
*
|
|
* This is a generic framework to use grayscale display within Rockbox
|
|
* plugins. It obviously does not work for the player.
|
|
*
|
|
* Copyright (C) 2004-2005 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.
|
|
*
|
|
****************************************************************************/
|
|
|
|
#ifndef SIMULATOR /* not for simulator by now */
|
|
#include "plugin.h"
|
|
|
|
#ifdef HAVE_LCD_BITMAP /* and also not for the Player */
|
|
#include "gray.h"
|
|
|
|
/* Set position of the top left corner of the greyscale overlay
|
|
Note that by is in pixel-block units (8 on Archos/SH1, 4 on H1x0) */
|
|
void gray_set_position(int x, int by)
|
|
{
|
|
_gray_info.x = x;
|
|
_gray_info.by = by;
|
|
|
|
if (_gray_info.flags & _GRAY_RUNNING)
|
|
_gray_info.flags |= _GRAY_DEFERRED_UPDATE;
|
|
}
|
|
|
|
/* Set the draw mode for subsequent drawing operations */
|
|
void gray_set_drawmode(int mode)
|
|
{
|
|
_gray_info.drawmode = mode & (DRMODE_SOLID|DRMODE_INVERSEVID);
|
|
}
|
|
|
|
/* Return the current draw mode */
|
|
int gray_get_drawmode(void)
|
|
{
|
|
return _gray_info.drawmode;
|
|
}
|
|
|
|
/* Set the foreground shade for subsequent drawing operations */
|
|
void gray_set_foreground(int brightness)
|
|
{
|
|
unsigned data = MULU16(_gray_info.depth, brightness & 0xFF) + 127;
|
|
|
|
_gray_info.fg_brightness = (data + (data >> 8)) >> 8; /* approx. data / 255 */
|
|
}
|
|
|
|
/* Return the current foreground shade */
|
|
int gray_get_foreground(void)
|
|
{
|
|
return (_gray_info.fg_brightness * 255 + (_gray_info.depth >> 1))
|
|
/ _gray_info.depth;
|
|
}
|
|
|
|
/* Set the background shade for subsequent drawing operations */
|
|
void gray_set_background(int brightness)
|
|
{
|
|
unsigned data = MULU16(_gray_info.depth, brightness & 0xFF) + 127;
|
|
|
|
_gray_info.bg_brightness = (data + (data >> 8)) >> 8; /* approx. data / 255 */
|
|
}
|
|
|
|
/* Return the current background shade */
|
|
int gray_get_background(void)
|
|
{
|
|
return (_gray_info.bg_brightness * 255 + (_gray_info.depth >> 1))
|
|
/ _gray_info.depth;
|
|
}
|
|
|
|
/* Set draw mode, foreground and background shades at once */
|
|
void gray_set_drawinfo(int mode, int fg_brightness, int bg_brightness)
|
|
{
|
|
gray_set_drawmode(mode);
|
|
gray_set_foreground(fg_brightness);
|
|
gray_set_background(bg_brightness);
|
|
}
|
|
|
|
/* Set font for the text output routines */
|
|
void gray_setfont(int newfont)
|
|
{
|
|
_gray_info.curfont = newfont;
|
|
}
|
|
|
|
/* Get width and height of a text when printed with the current font */
|
|
int gray_getstringsize(const unsigned char *str, int *w, int *h)
|
|
{
|
|
return _gray_rb->font_getstringsize(str, w, h, _gray_info.curfont);
|
|
}
|
|
|
|
#endif /* HAVE_LCD_BITMAP */
|
|
#endif /* !SIMULATOR */
|
|
|