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Diffstat (limited to 'apps/plugins/lib/gray_verline.c')
-rw-r--r--apps/plugins/lib/gray_verline.c88
1 files changed, 0 insertions, 88 deletions
diff --git a/apps/plugins/lib/gray_verline.c b/apps/plugins/lib/gray_verline.c
deleted file mode 100644
index 15910b41cf..0000000000
--- a/apps/plugins/lib/gray_verline.c
+++ /dev/null
@@ -1,88 +0,0 @@
1/***************************************************************************
2* __________ __ ___.
3* Open \______ \ ____ ____ | | _\_ |__ _______ ___
4* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
5* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
6* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
7* \/ \/ \/ \/ \/
8* $Id$
9*
10* Grayscale framework
11* gray_verline() 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 vertical line from (x, y1) to (x, y2) with the current drawinfo
34 ----------------------------------------------------------------------------
35 See gray_drawpixel() for details
36 This one uses the block drawing optimization, so it is rather fast.
37 */
38void gray_verline(int x, int y1, int y2)
39{
40 int shift, y, ny;
41 unsigned bits, mask_top, mask_bottom;
42 unsigned char *dst;
43 void (*blockfunc)(unsigned char *address, unsigned mask, unsigned bits);
44
45 if ((unsigned) x >= (unsigned) _graybuf->width
46 || (unsigned) y1 >= (unsigned) _graybuf->height
47 || (unsigned) y2 >= (unsigned) _graybuf->height)
48 return;
49
50 if (y1 > y2)
51 {
52 y = y1;
53 y1 = y2;
54 y2 = y;
55 }
56 y = y1;
57 ny = y2 - y1 + 1;
58
59 dst = _graybuf->data + x + MULU16(_graybuf->width, y >> 3);
60 shift = y & 7;
61 ny += shift;
62
63 mask_top = 0xFFu << (y & 7);
64 mask_bottom = ~(0xFEu << ((ny - 1) & 7));
65 if (ny <= 8)
66 mask_bottom &= mask_top;
67
68 blockfunc = _gray_blockfuncs[_graybuf->drawmode];
69 bits = (_graybuf->drawmode == GRAY_DRAW_BG) ? 0u : 0xFFu;
70
71 if (ny > 8)
72 {
73 blockfunc(dst, mask_top, bits);
74 dst += _graybuf->width;
75
76 for (y = 8; y < ny - 8; y += 8)
77 {
78 blockfunc(dst, 0xFFu, bits);
79 dst += _graybuf->width;
80 }
81 }
82
83 blockfunc(dst, mask_bottom, bits);
84}
85
86#endif // #ifdef HAVE_LCD_BITMAP
87#endif // #ifndef SIMULATOR
88