1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
|
load "iupe-dbuffer.lua"
dalosp.framebuffer = {
get_settings = function (self)
return { width = self.extra.width, height = self.extra.height, bpp = self.extra.bpp }
end,
input_change = function (self, ind)
local h = self:get_linked_input(ind)
if ind == 2 then
if h then
local cfg, s = h:readfile()
s, cfg = pcall(loadstring, "local cfg = " .. cfg .. "\nreturn cfg\n")
if s then self:apply_config(cfg) end
end
return
end
if h then h.getnextbyte = dalosp.framebuffer.getnextbyte end
self:apply_config{}
end,
activate = function (self)
self.extra.dlg:show()
end,
configure = function (self)
invert_lookup = {
[1] = 0,
[2] = 1,
[4] = 2,
[8] = 3,
[24] = 4,
[32] = 5,
}
lookup = {
[0] = 1,
[1] = 2,
[2] = 4,
[3] = 8,
[4] = 24,
[5] = 32,
}
local owidth, oheight, obpp, oppdir = self.extra.width, self.extra.height, self.extra.bpp, self.extra.ppdir
local cb = function (dlg, pi)
if pi < 0 then return end
local width, height, bpp, dir
width = iup.GetParamParam(dlg, 1).value + 0
height = iup.GetParamParam(dlg, 2).value + 0
bpp = iup.GetParamParam(dlg, 3).value + 0
dir = iup.GetParamParam(dlg, 4).value + 0
self:apply_config{ width = width, height = height, bpp = lookup[bpp], dir = dir }
end
local s, nname, width, height, bpp, ppdir = iup.GetParam(self.name .. " configuration", cb, "New name: %s\nWidth: %i\nHeight: %i\nBpp: %l|1 bpp|2 bpp|4 bpp|8 bpp|24 bpp|32 bpp|\nDirection: %l|Little Endian|Big Endian|\n", self.name, self.extra.width, self.extra.height, invert_lookup[self.extra.bpp], self.extra.ppdir)
if not s then
self:apply_config{ width = owidth, height = oheight, bpp = obpp, ppdir = oppdir }
else
self.name = nname
end
end,
apply_config = function (self, cfg)
local fb = self.extra.fb
local h = self:get_linked_input(1)
if cfg.width then self.extra.width = cfg.width end
if cfg.height then self.extra.height = cfg.height end
if cfg.bpp then self.extra.bpp = cfg.bpp end
if cfg.ppdir then self.extra.ppdir = cfg.ppdir end
fb.cfg = { h = h, width = self.extra.width, height = self.extra.height, bpp = self.extra.bpp }
fb:prepare()
fb:draw()
fb:action()
end,
getnextbyte = function (h)
return h:tell() ~= h:getsize() and h:readU8() or 0
end,
getbit = function (cfg)
local rc
local h = cfg.h
local stateful = cfg.stateful
if cfg.bpp >= 8 then return end
stateful = cfg.stateful
if not stateful or bit.band(stateful, 0x7f) == 0 then
stateful = h:getnextbyte() * 2 + 1
else
stateful = stateful * 2
end
cfg.stateful = stateful
return bit.band(bit.rshift(stateful, 8), 1)
end,
getnextpixel = function (cfg)
local rc
local r, g, b
local h = cfg.h
local getbit = function() return dalosp.framebuffer.getbit(cfg) end
if cfg.bpp == 1 then
rc = getbit() * 255
r, g, b = rc, rc, rc
elseif cfg.bpp == 2 then
rc = getbit() * 2
rc = (rc + getbit()) * 255 / 3
r, g, b = rc, rc, rc
elseif cfg.bpp == 4 then
rc = getbit() * 8
rc = rc + getbit() * 4
rc = rc + getbit() * 2
rc = (rc + getbit()) * 255 / 15
r, g, b = rc, rc, rc
elseif cfg.bpp == 8 then
rc = h:getnextbyte()
r, g, b = rc, rc, rc
elseif cfg.bpp == 24 then
r = h:getnextbyte()
g = h:getnextbyte()
b = h:getnextbyte()
elseif cfg.bpp == 32 then
r = h:getnextbyte()
g = h:getnextbyte()
b = h:getnextbyte()
h:getnextbyte()
end
return r, g, b
end,
prepare = function (self)
local cfg = self.cfg
local h = cfg.h
local width = cfg.width
local height = cfg.height
local bpp = cfg.bpp
local ppdir = cfg.ppdir
local flipx = cfg.flipx
local flipy = cfg.flipy
local cim = im.ImageCreate(width, height, im.RGB, im.BYTE)
self.cim = cim
cim:Clear()
if not h then return iup.DEFAULT end
local getnextpixel = self.getnextpixel
h:seek(0)
cfg.stateful = 0
local r, g, b = cim[0], cim[1], cim[2]
for y = 0, height - 1 do
for x = 0, width - 1 do
local px, py = flipx and width - x or x, flipy and height - y or y
r[py][px], g[py][px], b[py][px] = getnextpixel(cfg)
end
end
return iup.DEFAULT
end,
draw = function (self)
local cvdb = self.cvdb
if not cvdb then return iup.DEFAULT end
cvdb:Clear()
self.cim:cdCanvasPutImageRect(cvdb, 0, 0, 0, 0, 0, 0, 0, 0) -- use default values
end,
create = function (d, tab, settings)
tab.ninputs = 2
tab.noutputs = 0
tab.otype = dalos.objtype.LUA_VIEWER
tab.activate = dalosp.framebuffer.activate
tab.configure = dalosp.framebuffer.configure
tab.input_change = dalosp.framebuffer.input_change
tab.default_name = "Framebuffer"
tab.ntype = "Framebuffer"
tab.get_settings = dalosp.framebuffer.get_settings
local extra = { width = settings.width or 256 , height = settings.height or 256, bpp = settings.bpp or 32, ppdir = settings.dir or 0 }
local obj = dalos.object(d, tab, extra)
obj.apply_config = dalosp.framebuffer.apply_config
local fb = iup.canvas {
expand = "Yes",
font = "Courier, 8",
action = iupep.dbuffer.action,
map_cb = iupep.dbuffer.map_cb,
unmap_cb = iupep.dbuffer.unmap_cb,
resize_cb = iupep.dbuffer.resize_cb,
draw = dalosp.framebuffer.draw,
prepare = dalosp.framebuffer.prepare,
getnextpixel = dalosp.framebuffer.getnextpixel,
rastersize = extra.width .. "x" .. extra.height,
}
local dlg = iup.dialog {
fb,
size = "320x200",
title = obj.name,
shrink = "Yes",
}
extra.dlg = dlg
extra.fb = fb
obj:apply_config{}
return obj
end,
}
dalos.framebuffer = dalosp.framebuffer.create
dalos:register_obj("Framebuffer", dalos.framebuffer, "Basic Viewers")
|
