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orion-rf.piolibdepsesp32-s3-n16r8U8g2srcclibu8g2_bitmap.c

275 lines · 6.6 KB · C

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1/*
2
3 u8g2_bitmap.c
4
5 Universal 8bit Graphics Library (https://github.com/olikraus/u8g2/)
6
7 Copyright (c) 2016, olikraus@gmail.com
8 All rights reserved.
9
10 Redistribution and use in source and binary forms, with or without modification,
11 are permitted provided that the following conditions are met:
12
13 * Redistributions of source code must retain the above copyright notice, this list
14 of conditions and the following disclaimer.
15
16 * Redistributions in binary form must reproduce the above copyright notice, this
17 list of conditions and the following disclaimer in the documentation and/or other
18 materials provided with the distribution.
19
20 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
21 CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
22 INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
23 MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
24 DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
25 CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
26 SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
27 NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
28 LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
29 CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
30 STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
31 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
32 ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
33
34*/
35
36#include "u8g2.h"
37
38
39void u8g2_SetBitmapMode(u8g2_t *u8g2, uint8_t is_transparent) {
40 u8g2->bitmap_transparency = is_transparent;
41}
42
43/*
44 x,y Position on the display
45 len Length of bitmap line in pixel. Note: This differs from u8glib which had a bytecount here.
46 b Pointer to the bitmap line.
47 Only draw pixels which are set.
48*/
49
50void u8g2_DrawHorizontalBitmap(u8g2_t *u8g2, u8g2_uint_t x, u8g2_uint_t y, u8g2_uint_t len, const uint8_t *b)
51{
52 uint8_t mask;
53 uint8_t color = u8g2->draw_color;
54 uint8_t ncolor = (color == 0 ? 1 : 0);
55
56#ifdef U8G2_WITH_INTERSECTION
57 if ( u8g2_IsIntersection(u8g2, x, y, x+len, y+1) == 0 )
58 return;
59#endif /* U8G2_WITH_INTERSECTION */
60
61 mask = 128;
62 while(len > 0)
63 {
64 if ( *b & mask ) {
65 u8g2->draw_color = color;
66 u8g2_DrawHVLine(u8g2, x, y, 1, 0);
67 } else if ( u8g2->bitmap_transparency == 0 ) {
68 u8g2->draw_color = ncolor;
69 u8g2_DrawHVLine(u8g2, x, y, 1, 0);
70 }
71
72 x++;
73 mask >>= 1;
74 if ( mask == 0 )
75 {
76 mask = 128;
77 b++;
78 }
79 len--;
80 }
81 u8g2->draw_color = color;
82}
83
84
85/* u8glib compatible bitmap draw function */
86void u8g2_DrawBitmap(u8g2_t *u8g2, u8g2_uint_t x, u8g2_uint_t y, u8g2_uint_t cnt, u8g2_uint_t h, const uint8_t *bitmap)
87{
88 u8g2_uint_t w;
89 w = cnt;
90 w *= 8;
91#ifdef U8G2_WITH_INTERSECTION
92 if ( u8g2_IsIntersection(u8g2, x, y, x+w, y+h) == 0 )
93 return;
94#endif /* U8G2_WITH_INTERSECTION */
95
96 while( h > 0 )
97 {
98 u8g2_DrawHorizontalBitmap(u8g2, x, y, w, bitmap);
99 bitmap += cnt;
100 y++;
101 h--;
102 }
103}
104
105
106
107void u8g2_DrawHXBM(u8g2_t *u8g2, u8g2_uint_t x, u8g2_uint_t y, u8g2_uint_t len, const uint8_t *b)
108{
109 uint8_t mask;
110 uint8_t color = u8g2->draw_color;
111 uint8_t ncolor = (color == 0 ? 1 : 0);
112#ifdef U8G2_WITH_INTERSECTION
113 if ( u8g2_IsIntersection(u8g2, x, y, x+len, y+1) == 0 )
114 return;
115#endif /* U8G2_WITH_INTERSECTION */
116
117 mask = 1;
118 while(len > 0) {
119 uint8_t current_bit = (*b) & mask;
120#ifdef OLD
121 if ( current_bit ) {
122 u8g2->draw_color = color;
123 u8g2_DrawHVLine(u8g2, x, y, 1, 0);
124 } else if ( u8g2->bitmap_transparency == 0 ) {
125 u8g2->draw_color = ncolor;
126 u8g2_DrawHVLine(u8g2, x, y, 1, 0);
127 }
128 x++;
129 mask <<= 1;
130 if ( mask == 0 )
131 {
132 mask = 1;
133 b++;
134 }
135 len--;
136#else
137 u8g2_uint_t run_length = 0;
138 // Determine the run length of consecutive bits with the same color
139 while (len > 0 && (current_bit == 0 ? (((*b) & mask) == 0) : (((*b) & mask) != 0 ) ))
140 {
141 run_length++;
142 x++;
143 mask <<= 1;
144 if (mask == 0)
145 {
146 mask = 1;
147 b++;
148 }
149 len--;
150 }
151 if (current_bit)
152 {
153 u8g2->draw_color = color;
154 u8g2_DrawHVLine(u8g2, x - run_length, y, run_length, 0);
155 }
156 else if (u8g2->bitmap_transparency == 0)
157 {
158 u8g2->draw_color = ncolor;
159 u8g2_DrawHVLine(u8g2, x - run_length, y, run_length, 0);
160 }
161#endif
162 }
163 u8g2->draw_color = color;
164}
165
166
167void u8g2_DrawXBM(u8g2_t *u8g2, u8g2_uint_t x, u8g2_uint_t y, u8g2_uint_t w, u8g2_uint_t h, const uint8_t *bitmap)
168{
169 u8g2_uint_t blen;
170 blen = w;
171 blen += 7;
172 blen >>= 3;
173#ifdef U8G2_WITH_INTERSECTION
174 if ( u8g2_IsIntersection(u8g2, x, y, x+w, y+h) == 0 )
175 return;
176#endif /* U8G2_WITH_INTERSECTION */
177
178 while( h > 0 )
179 {
180 u8g2_DrawHXBM(u8g2, x, y, w, bitmap);
181 bitmap += blen;
182 y++;
183 h--;
184 }
185}
186
187
188
189
190
191
192void u8g2_DrawHXBMP(u8g2_t *u8g2, u8g2_uint_t x, u8g2_uint_t y, u8g2_uint_t len, const uint8_t *b)
193{
194 uint8_t mask;
195 uint8_t color = u8g2->draw_color;
196 uint8_t ncolor = (color == 0 ? 1 : 0);
197#ifdef U8G2_WITH_INTERSECTION
198 if ( u8g2_IsIntersection(u8g2, x, y, x+len, y+1) == 0 )
199 return;
200#endif /* U8G2_WITH_INTERSECTION */
201
202 mask = 1;
203 while(len > 0)
204 {
205 uint8_t current_bit = u8x8_pgm_read(b) & mask;
206//#define OLD
207#ifdef OLD
208 if ( current_bit ) {
209 u8g2->draw_color = color;
210 u8g2_DrawHVLine(u8g2, x, y, 1, 0);
211 } else if( u8g2->bitmap_transparency == 0 ) {
212 u8g2->draw_color = ncolor;
213 u8g2_DrawHVLine(u8g2, x, y, 1, 0);
214 }
215
216 x++;
217 mask <<= 1;
218 if ( mask == 0 )
219 {
220 mask = 1;
221 b++;
222 }
223 len--;
224#else
225 u8g2_uint_t run_length = 0;
226 // Determine the run length of consecutive bits with the same color
227 while (len > 0 && (current_bit == 0 ? ((u8x8_pgm_read(b) & mask) == 0) : ((u8x8_pgm_read(b) & mask) != 0 ) ))
228 {
229 run_length++;
230 x++;
231 mask <<= 1;
232 if (mask == 0)
233 {
234 mask = 1;
235 b++;
236 }
237 len--;
238 }
239 if (current_bit)
240 {
241 u8g2->draw_color = color;
242 u8g2_DrawHVLine(u8g2, x - run_length, y, run_length, 0);
243 }
244 else if (u8g2->bitmap_transparency == 0)
245 {
246 u8g2->draw_color = ncolor;
247 u8g2_DrawHVLine(u8g2, x - run_length, y, run_length, 0);
248 }
249#endif
250 }
251 u8g2->draw_color = color;
252}
253
254
255void u8g2_DrawXBMP(u8g2_t *u8g2, u8g2_uint_t x, u8g2_uint_t y, u8g2_uint_t w, u8g2_uint_t h, const uint8_t *bitmap)
256{
257 u8g2_uint_t blen;
258 blen = w;
259 blen += 7;
260 blen >>= 3;
261#ifdef U8G2_WITH_INTERSECTION
262 if ( u8g2_IsIntersection(u8g2, x, y, x+w, y+h) == 0 )
263 return;
264#endif /* U8G2_WITH_INTERSECTION */
265
266 while( h > 0 )
267 {
268 u8g2_DrawHXBMP(u8g2, x, y, w, bitmap);
269 bitmap += blen;
270 y++;
271 h--;
272 }
273}
274
275