diff options
Diffstat (limited to 'apps/plugins/lib/gray_horline.c')
-rw-r--r-- | apps/plugins/lib/gray_horline.c | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/apps/plugins/lib/gray_horline.c b/apps/plugins/lib/gray_horline.c new file mode 100644 index 0000000000..c5ad0046de --- /dev/null +++ b/apps/plugins/lib/gray_horline.c | |||
@@ -0,0 +1,65 @@ | |||
1 | /*************************************************************************** | ||
2 | * __________ __ ___. | ||
3 | * Open \______ \ ____ ____ | | _\_ |__ _______ ___ | ||
4 | * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / | ||
5 | * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < | ||
6 | * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ | ||
7 | * \/ \/ \/ \/ \/ | ||
8 | * $Id$ | ||
9 | * | ||
10 | * Grayscale framework | ||
11 | * gray_horline() function | ||
12 | * | ||
13 | * This is a generic framework to use grayscale display within Rockbox | ||
14 | * plugins. It obviously does not work for the player. | ||
15 | * | ||
16 | * Copyright (C) 2004 Jens Arnold | ||
17 | * | ||
18 | * All files in this archive are subject to the GNU General Public License. | ||
19 | * See the file COPYING in the source tree root for full license agreement. | ||
20 | * | ||
21 | * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY | ||
22 | * KIND, either express or implied. | ||
23 | * | ||
24 | ****************************************************************************/ | ||
25 | |||
26 | #ifndef SIMULATOR /* not for simulator by now */ | ||
27 | #include "plugin.h" | ||
28 | |||
29 | #ifdef HAVE_LCD_BITMAP /* and also not for the Player */ | ||
30 | #include "gray.h" | ||
31 | |||
32 | /*--------------------------------------------------------------------------- | ||
33 | Draw a horizontal line from (x1, y) to (x2, y) with the current drawinfo | ||
34 | ---------------------------------------------------------------------------- | ||
35 | See gray_drawpixel() for details | ||
36 | */ | ||
37 | void gray_horline(int x1, int x2, int y) | ||
38 | { | ||
39 | int x; | ||
40 | unsigned long pattern; | ||
41 | void (*pixelfunc)(int x, int y, unsigned long pattern); | ||
42 | |||
43 | if ((unsigned) x1 >= (unsigned) _graybuf->width | ||
44 | || (unsigned) x2 >= (unsigned) _graybuf->width | ||
45 | || (unsigned) y >= (unsigned) _graybuf->height) | ||
46 | return; | ||
47 | |||
48 | if (x1 > x2) | ||
49 | { | ||
50 | x = x1; | ||
51 | x1 = x2; | ||
52 | x2 = x; | ||
53 | } | ||
54 | pixelfunc = _gray_pixelfuncs[_graybuf->drawmode]; | ||
55 | pattern = (_graybuf->drawmode == GRAY_DRAW_BG) ? | ||
56 | _graybuf->bg_pattern : _graybuf->fg_pattern; | ||
57 | |||
58 | for (x = x1; x <= x2; x++) | ||
59 | pixelfunc(x, y, pattern); | ||
60 | |||
61 | } | ||
62 | |||
63 | #endif // #ifdef HAVE_LCD_BITMAP | ||
64 | #endif // #ifndef SIMULATOR | ||
65 | |||