A modern Music Player Daemon based on Rockbox open source high quality audio player
tsiry-sandratraina.com
libadwaita
audio
rust
zig
deno
mpris
rockbox
mpd
1--[[ Lua Blit Operations
2/***************************************************************************
3 * __________ __ ___.
4 * Open \______ \ ____ ____ | | _\_ |__ _______ ___
5 * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
6 * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
7 * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
8 * \/ \/ \/ \/ \/
9 * $Id$
10 *
11 * Copyright (C) 2017 William Wilgus
12 *
13 * This program is free software; you can redistribute it and/or
14 * modify it under the terms of the GNU General Public License
15 * as published by the Free Software Foundation; either version 2
16 * of the License, or (at your option) any later version.
17 *
18 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
19 * KIND, either express or implied.
20 *
21 ****************************************************************************/
22]]
23
24--[[
25copy(dst, src, [dx, dy, sx, sy, offset_x, offset_y, clip, _blit.OP, clr/customfunct])
26 blit allows you to copy a [portion of a] source image to a dest image applying
27 a transformation operation to the pixels as they are copied
28 offsets are auto calculated if left empty or out of range
29 blit will default to copy if operation is empty or out of range
30
31it is slightly faster to use the number directly and you don't really
32 need to define all (any) of these if you don't use them but I put them
33 here for easier use of the blit function
34]]
35if not rb.lcd_framebuffer then rb.splash(rb.HZ, "No Support!") return nil end
36
37local _blit ={} do
38
39 _blit.CUSTOM = nil --user defined blit function func(dst_val, x, y, src_val, x, y)
40 _blit.BCOPY = 0x0 --copy (use :copy() instead it is slightly faster
41 _blit.BOR = 0x1 --OR source and dest pixels
42 _blit.BXOR = 0x2 --XOR source and dest pixels
43 _blit.BNOR = 0x3 --(NOT) (source OR dest pixels)
44 _blit.BSNOR = 0x4 --(NOT source) OR dest pixels
45 _blit.BAND = 0x5 --AND source and dest pixels
46 _blit.BNAND = 0x6 --(NOT) AND source and dest pixels
47 _blit.BNOT = 0x7 --NOT source and dest pixels
48 --blit functions for masks
49 _blit.BSAND = 0x8 --copy color to dest if source pixel <> 0
50 _blit.BSNOT = 0x9 --copy color to dest if source pixel == 0
51 --blit functions for masks with colors
52 _blit.BSORC = 0xA --copy source pixel or color
53 _blit.BSXORC = 0xB --copy source pixel xor color
54 _blit.BNSORC = 0xC --copy ~(src_val | clr)
55 _blit.BSORNC = 0xD --copy src_val | (~clr)
56 _blit.BSANDC = 0xE --copy src_val & clr;
57 _blit.BNSANDC = 0xF --copy (~src_val) & clr
58 _blit.BDORNSORC = 0x10 --copy dst | (~src_val) | clr
59 _blit.BXORSADXORC = 0x11 --copy dst ^ (src_val & (dst_val ^ clr))
60
61 _blit.BSNEC = 0x12 --copy source pixel if source <> color
62 _blit.BSEQC = 0x13 --copy source pixel if source == color
63 _blit.BSGTC = 0x14 --copy source pixel if source > color
64 _blit.BSLTC = 0x15 --copy source pixel if source < color
65 _blit.BDNEC = 0x16 --copy source pixel if dest <> color
66 _blit.BDEQC = 0x17 --copy source pixel if dest == color
67 _blit.BDGTC = 0x18 --copy source pixel if dest > color
68 _blit.BDLTC = 0x19 --copy source pixel if dest < color
69 _blit.BDNES = 0x1A --copy color to dest if dest <> source pixel
70 _blit.BDEQS = 0x1B --copy color to dest if dest == source pixel
71 _blit.BDGTS = 0x1C --copy color to dest if dest > source pixel
72 _blit.BDLTS = 0x1D --copy color to dest if dest < source pixel
73 --Source unused for these blits
74 _blit.BCOPYC = 0x1E --copy color
75 _blit.BORC = 0x1F --OR dest and color
76 _blit.BXORC = 0x20 --XOR dest and color
77 _blit.BNDORC = 0x21 --~(dst_val | clr)
78 _blit.BDORNC = 0x22 --dst_val | (~clr)
79 _blit.BANDC = 0x23 --AND dest and color
80 _blit.BNDANDC = 0x24 --copy (~dst_val) & clr
81 _blit.BDLTS = 0x25 --dest NOT color
82end -- _blit operations
83
84return _blit
85