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
209
210
211
212
213
214
215
216
217
218
219
220
use display_interface::{DisplayError, WriteOnlyDataCommand};
use hal::{blocking::delay::DelayMs, digital::v2::OutputPin};
use crate::{
displayrotation::DisplayRotation,
mode::displaymode::DisplayModeTrait,
properties::DisplayProperties,
};
const BUFFER_SIZE: usize = 128 * 64 / 8;
pub struct GraphicsMode<DI>
where
DI: WriteOnlyDataCommand,
{
properties: DisplayProperties<DI>,
buffer: [u8; BUFFER_SIZE],
}
impl<DI> DisplayModeTrait<DI> for GraphicsMode<DI>
where
DI: WriteOnlyDataCommand,
{
fn new(properties: DisplayProperties<DI>) -> Self {
GraphicsMode {
properties,
buffer: [0; BUFFER_SIZE],
}
}
fn release(self) -> DisplayProperties<DI> {
self.properties
}
}
impl<DI> GraphicsMode<DI>
where
DI: WriteOnlyDataCommand,
{
pub fn clear(&mut self) {
self.buffer = [0; BUFFER_SIZE];
}
pub fn reset<RST, DELAY, PinE>(
&mut self,
rst: &mut RST,
delay: &mut DELAY,
) -> Result<(), PinE>
where
RST: OutputPin<Error = PinE>,
DELAY: DelayMs<u8>,
{
rst.set_high()?;
delay.delay_ms(10);
rst.set_low()?;
delay.delay_ms(10);
rst.set_high()?;
delay.delay_ms(10);
Ok(())
}
pub fn flush(&mut self) -> Result<(), DisplayError> {
let display_size = self.properties.get_size();
let (display_width, display_height) = display_size.dimensions();
let column_offset = display_size.column_offset();
self.properties.set_draw_area(
(column_offset, 0),
(display_width + column_offset, display_height),
)?;
let length = (display_width as usize) * (display_height as usize) / 8;
self.properties.draw(&self.buffer[..length])
}
pub fn set_pixel(&mut self, x: u32, y: u32, value: u8) {
let (display_width, _) = self.properties.get_size().dimensions();
let display_rotation = self.properties.get_rotation();
let idx = match display_rotation {
DisplayRotation::Rotate0 | DisplayRotation::Rotate180 => {
if x >= display_width as u32 {
return;
}
((y as usize) / 8 * display_width as usize) + (x as usize)
}
DisplayRotation::Rotate90 | DisplayRotation::Rotate270 => {
if y >= display_width as u32 {
return;
}
((x as usize) / 8 * display_width as usize) + (y as usize)
}
};
if idx >= self.buffer.len() {
return;
}
let (byte, bit) = match display_rotation {
DisplayRotation::Rotate0 | DisplayRotation::Rotate180 => {
let byte =
&mut self.buffer[((y as usize) / 8 * display_width as usize) + (x as usize)];
let bit = 1 << (y % 8);
(byte, bit)
}
DisplayRotation::Rotate90 | DisplayRotation::Rotate270 => {
let byte =
&mut self.buffer[((x as usize) / 8 * display_width as usize) + (y as usize)];
let bit = 1 << (x % 8);
(byte, bit)
}
};
if value == 0 {
*byte &= !bit;
} else {
*byte |= bit;
}
}
pub fn init(&mut self) -> Result<(), DisplayError> {
self.properties.init_column_mode()
}
pub fn get_dimensions(&self) -> (u8, u8) {
self.properties.get_dimensions()
}
pub fn set_rotation(&mut self, rot: DisplayRotation) -> Result<(), DisplayError> {
self.properties.set_rotation(rot)
}
pub fn display_on(&mut self, on: bool) -> Result<(), DisplayError> {
self.properties.display_on(on)
}
pub fn set_contrast(&mut self, contrast: u8) -> Result<(), DisplayError> {
self.properties.set_contrast(contrast)
}
}
#[cfg(feature = "graphics")]
use embedded_graphics::{
drawable,
geometry::Size,
pixelcolor::{
raw::{RawData, RawU1},
BinaryColor,
},
DrawTarget,
};
#[cfg(feature = "graphics")]
impl<DI> DrawTarget<BinaryColor> for GraphicsMode<DI>
where
DI: WriteOnlyDataCommand,
{
type Error = DisplayError;
fn draw_pixel(&mut self, pixel: drawable::Pixel<BinaryColor>) -> Result<(), Self::Error> {
let drawable::Pixel(pos, color) = pixel;
if pos.x < 0 || pos.y < 0 {
return Ok(());
}
self.set_pixel(pos.x as u32, pos.y as u32, RawU1::from(color).into_inner());
Ok(())
}
fn size(&self) -> Size {
let (w, h) = self.get_dimensions();
Size::new(w as u32, h as u32)
}
}