diff options
| -rw-r--r-- | apps/plugins/lib/SOURCES | 3 | ||||
| -rw-r--r-- | apps/plugins/lib/xlcd.c | 109 | ||||
| -rw-r--r-- | apps/plugins/lib/xlcd.h | 34 |
3 files changed, 146 insertions, 0 deletions
diff --git a/apps/plugins/lib/SOURCES b/apps/plugins/lib/SOURCES index 49abf854da..00cc6d82c4 100644 --- a/apps/plugins/lib/SOURCES +++ b/apps/plugins/lib/SOURCES @@ -31,6 +31,9 @@ gray_set_foreground.c gray_setfont.c gray_verline.c #endif +#ifdef HAVE_LCD_BITMAP +xlcd.c +#endif #ifdef HAVE_LCD_CHARCELLS playergfx.c #endif diff --git a/apps/plugins/lib/xlcd.c b/apps/plugins/lib/xlcd.c new file mode 100644 index 0000000000..a0dcc2ac3e --- /dev/null +++ b/apps/plugins/lib/xlcd.c @@ -0,0 +1,109 @@ +/*************************************************************************** +* __________ __ ___. +* Open \______ \ ____ ____ | | _\_ |__ _______ ___ +* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / +* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < +* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ +* \/ \/ \/ \/ \/ +* $Id$ +* +* Additional LCD routines not present in the core itself +* +* Copyright (C) 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. +* +****************************************************************************/ + +#include "plugin.h" + +#ifdef HAVE_LCD_BITMAP + +/*** globals ***/ + +static struct plugin_api *local_rb = NULL; /* global api struct pointer */ + +/*** functions ***/ + +/* library init */ +void xlcd_init(struct plugin_api* newrb) +{ + local_rb = newrb; +} + +/* draw a filled triangle */ +void xlcd_filltriangle(int x1, int y1, int x2, int y2, int x3, int y3) +{ + int x, y; + long fp_y1, fp_y2, fp_dy1, fp_dy2; + + /* sort vertices by increasing x value */ + if (x1 > x3) + { + if (x2 < x3) /* x2 < x3 < x1 */ + { + x = x1; x1 = x2; x2 = x3; x3 = x; + y = y1; y1 = y2; y2 = y3; y3 = y; + } + else if (x2 > x1) /* x3 < x1 < x2 */ + { + x = x1; x1 = x3; x3 = x2; x2 = x; + y = y1; y1 = y3; y3 = y2; y2 = y; + } + else /* x3 <= x2 <= x1 */ + { + x = x1; x1 = x3; x3 = x; + y = y1; y1 = y3; y3 = y; + } + } + else + { + if (x2 < x1) /* x2 < x1 <= x3 */ + { + x = x1; x1 = x2; x2 = x; + y = y1; y1 = y2; y2 = y; + } + else if (x2 > x3) /* x1 <= x3 < x2 */ + { + x = x2; x2 = x3; x3 = x; + y = y2; y2 = y3; y3 = y; + } + /* else already sorted */ + } + + if (x1 < x3) /* draw */ + { + fp_dy1 = ((y3 - y1) << 16) / (x3 - x1); + fp_y1 = (y1 << 16) + (1<<15) + (fp_dy1 >> 1); + + if (x1 < x2) /* first part */ + { + fp_dy2 = ((y2 - y1) << 16) / (x2 - x1); + fp_y2 = (y1 << 16) + (1<<15) + (fp_dy2 >> 1); + for (x = x1; x < x2; x++) + { + local_rb->lcd_vline(x, fp_y1 >> 16, fp_y2 >> 16); + fp_y1 += fp_dy1; + fp_y2 += fp_dy2; + } + } + if (x2 < x3) /* second part */ + { + fp_dy2 = ((y3 - y2) << 16) / (x3 - x2); + fp_y2 = (y2 << 16) + (1<<15) + (fp_dy2 >> 1); + for (x = x2; x < x3; x++) + { + local_rb->lcd_vline(x, fp_y1 >> 16, fp_y2 >> 16); + fp_y1 += fp_dy1; + fp_y2 += fp_dy2; + } + } + } +} + +#endif /* HAVE_LCD_BITMAP */ + diff --git a/apps/plugins/lib/xlcd.h b/apps/plugins/lib/xlcd.h new file mode 100644 index 0000000000..3f54643ec9 --- /dev/null +++ b/apps/plugins/lib/xlcd.h @@ -0,0 +1,34 @@ +/*************************************************************************** +* __________ __ ___. +* Open \______ \ ____ ____ | | _\_ |__ _______ ___ +* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / +* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < +* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ +* \/ \/ \/ \/ \/ +* $Id$ +* +* Additional LCD routines not present in the core itself +* +* Copyright (C) 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 __XLCD_H__ +#define __XLCD_H__ + +#include "plugin.h" + +#ifdef HAVE_LCD_BITMAP + +void xlcd_init(struct plugin_api* newrb); +void xlcd_filltriangle(int x1, int y1, int x2, int y2, int x3, int y3); + +#endif /* HAVE_LCD_BITMAP */ +#endif /* __XLCD_H__ */ + |