Fork of Chris Styles' C12832 LCD driver
Dependents: co657_lcdplay co657_nrf52_beacons door_lock co657_IoT
Fork of C12832 by
C12832.cpp@22:7accdf0bfc18, 2015-11-27 (annotated)
- Committer:
- co657_frmb
- Date:
- Fri Nov 27 22:45:20 2015 +0000
- Revision:
- 22:7accdf0bfc18
- Parent:
- 20:dbee79303f9a
Some updates for drawing optimisation.
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
chris | 15:67dfa5550b73 | 1 | /* mbed library for the mbed Lab Board 128*32 pixel LCD |
chris | 15:67dfa5550b73 | 2 | * use C12832 controller |
chris | 15:67dfa5550b73 | 3 | * Copyright (c) 2012 Peter Drescher - DC2PD |
chris | 15:67dfa5550b73 | 4 | * Released under the MIT License: http://mbed.org/license/mit |
chris | 15:67dfa5550b73 | 5 | * |
chris | 15:67dfa5550b73 | 6 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
chris | 15:67dfa5550b73 | 7 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
chris | 15:67dfa5550b73 | 8 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
chris | 15:67dfa5550b73 | 9 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
chris | 15:67dfa5550b73 | 10 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
chris | 15:67dfa5550b73 | 11 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
chris | 15:67dfa5550b73 | 12 | * THE SOFTWARE. |
chris | 15:67dfa5550b73 | 13 | */ |
chris | 15:67dfa5550b73 | 14 | |
chris | 15:67dfa5550b73 | 15 | // 13.10.12 initial design |
chris | 15:67dfa5550b73 | 16 | // 25.10.12 add autorefresh of screen |
chris | 15:67dfa5550b73 | 17 | // 25.10.12 add standart font |
chris | 15:67dfa5550b73 | 18 | // 20.12.12 add bitmap graphics |
chris | 15:67dfa5550b73 | 19 | |
co657_frmb | 18:8c294697c901 | 20 | // Assorted changes/updates by Fred Barnes, University of Kent <frmb@kent.ac.uk> |
co657_frmb | 18:8c294697c901 | 21 | // 31.10.15 minor bugfixes, some drawing optimisation |
co657_frmb | 18:8c294697c901 | 22 | |
chris | 15:67dfa5550b73 | 23 | // optional defines : |
chris | 15:67dfa5550b73 | 24 | // #define debug_lcd 1 |
chris | 15:67dfa5550b73 | 25 | |
chris | 15:67dfa5550b73 | 26 | #include "C12832.h" |
chris | 15:67dfa5550b73 | 27 | #include "mbed.h" |
chris | 15:67dfa5550b73 | 28 | #include "stdio.h" |
chris | 15:67dfa5550b73 | 29 | #include "Small_7.h" |
chris | 15:67dfa5550b73 | 30 | |
chris | 15:67dfa5550b73 | 31 | #define BPP 1 // Bits per pixel |
chris | 15:67dfa5550b73 | 32 | |
chris | 15:67dfa5550b73 | 33 | |
chris | 16:7de323fa46fe | 34 | C12832::C12832(PinName mosi, PinName sck, PinName reset, PinName a0, PinName ncs, const char* name) |
chris | 15:67dfa5550b73 | 35 | : _spi(mosi,NC,sck),_reset(reset),_A0(a0),_CS(ncs),GraphicsDisplay(name) |
chris | 15:67dfa5550b73 | 36 | { |
chris | 15:67dfa5550b73 | 37 | orientation = 1; |
chris | 15:67dfa5550b73 | 38 | draw_mode = NORMAL; |
chris | 15:67dfa5550b73 | 39 | char_x = 0; |
chris | 15:67dfa5550b73 | 40 | lcd_reset(); |
chris | 15:67dfa5550b73 | 41 | } |
chris | 15:67dfa5550b73 | 42 | |
chris | 15:67dfa5550b73 | 43 | |
chris | 16:7de323fa46fe | 44 | int C12832::width() |
chris | 15:67dfa5550b73 | 45 | { |
chris | 15:67dfa5550b73 | 46 | if (orientation == 0 || orientation == 2) return 32; |
chris | 15:67dfa5550b73 | 47 | else return 128; |
chris | 15:67dfa5550b73 | 48 | } |
chris | 15:67dfa5550b73 | 49 | |
chris | 16:7de323fa46fe | 50 | int C12832::height() |
chris | 15:67dfa5550b73 | 51 | { |
chris | 15:67dfa5550b73 | 52 | if (orientation == 0 || orientation == 2) return 128; |
chris | 15:67dfa5550b73 | 53 | else return 32; |
chris | 15:67dfa5550b73 | 54 | } |
chris | 15:67dfa5550b73 | 55 | |
chris | 15:67dfa5550b73 | 56 | |
chris | 16:7de323fa46fe | 57 | void C12832::invert(unsigned int o) |
chris | 15:67dfa5550b73 | 58 | { |
chris | 15:67dfa5550b73 | 59 | if(o == 0) wr_cmd(0xA6); |
chris | 15:67dfa5550b73 | 60 | else wr_cmd(0xA7); |
chris | 15:67dfa5550b73 | 61 | } |
chris | 15:67dfa5550b73 | 62 | |
chris | 15:67dfa5550b73 | 63 | |
chris | 16:7de323fa46fe | 64 | void C12832::set_contrast(unsigned int o) |
chris | 15:67dfa5550b73 | 65 | { |
chris | 15:67dfa5550b73 | 66 | contrast = o; |
chris | 15:67dfa5550b73 | 67 | wr_cmd(0x81); // set volume |
chris | 15:67dfa5550b73 | 68 | wr_cmd(o & 0x3F); |
chris | 15:67dfa5550b73 | 69 | } |
chris | 15:67dfa5550b73 | 70 | |
chris | 16:7de323fa46fe | 71 | unsigned int C12832::get_contrast(void) |
chris | 15:67dfa5550b73 | 72 | { |
chris | 15:67dfa5550b73 | 73 | return(contrast); |
chris | 15:67dfa5550b73 | 74 | } |
chris | 15:67dfa5550b73 | 75 | |
chris | 15:67dfa5550b73 | 76 | |
chris | 15:67dfa5550b73 | 77 | // write command to lcd controller |
chris | 15:67dfa5550b73 | 78 | |
chris | 16:7de323fa46fe | 79 | void C12832::wr_cmd(unsigned char cmd) |
chris | 15:67dfa5550b73 | 80 | { |
chris | 15:67dfa5550b73 | 81 | _A0 = 0; |
chris | 15:67dfa5550b73 | 82 | _CS = 0; |
chris | 15:67dfa5550b73 | 83 | _spi.write(cmd); |
chris | 15:67dfa5550b73 | 84 | _CS = 1; |
chris | 15:67dfa5550b73 | 85 | } |
chris | 15:67dfa5550b73 | 86 | |
chris | 15:67dfa5550b73 | 87 | // write data to lcd controller |
chris | 15:67dfa5550b73 | 88 | |
chris | 16:7de323fa46fe | 89 | void C12832::wr_dat(unsigned char dat) |
chris | 15:67dfa5550b73 | 90 | { |
chris | 15:67dfa5550b73 | 91 | _A0 = 1; |
chris | 15:67dfa5550b73 | 92 | _CS = 0; |
chris | 15:67dfa5550b73 | 93 | _spi.write(dat); |
chris | 15:67dfa5550b73 | 94 | _CS = 1; |
chris | 15:67dfa5550b73 | 95 | } |
chris | 15:67dfa5550b73 | 96 | |
chris | 15:67dfa5550b73 | 97 | // reset and init the lcd controller |
chris | 15:67dfa5550b73 | 98 | |
chris | 16:7de323fa46fe | 99 | void C12832::lcd_reset() |
chris | 15:67dfa5550b73 | 100 | { |
chris | 15:67dfa5550b73 | 101 | |
chris | 15:67dfa5550b73 | 102 | _spi.format(8,3); // 8 bit spi mode 3 |
chris | 15:67dfa5550b73 | 103 | _spi.frequency(20000000); // 19,2 Mhz SPI clock |
chris | 15:67dfa5550b73 | 104 | _A0 = 0; |
chris | 15:67dfa5550b73 | 105 | _CS = 1; |
chris | 15:67dfa5550b73 | 106 | _reset = 0; // display reset |
chris | 15:67dfa5550b73 | 107 | wait_us(50); |
chris | 15:67dfa5550b73 | 108 | _reset = 1; // end reset |
chris | 15:67dfa5550b73 | 109 | wait_ms(5); |
chris | 15:67dfa5550b73 | 110 | |
chris | 15:67dfa5550b73 | 111 | /* Start Initial Sequence ----------------------------------------------------*/ |
chris | 15:67dfa5550b73 | 112 | |
chris | 15:67dfa5550b73 | 113 | wr_cmd(0xAE); // display off |
chris | 15:67dfa5550b73 | 114 | wr_cmd(0xA2); // bias voltage |
chris | 15:67dfa5550b73 | 115 | |
chris | 15:67dfa5550b73 | 116 | wr_cmd(0xA0); |
chris | 15:67dfa5550b73 | 117 | wr_cmd(0xC8); // colum normal |
chris | 15:67dfa5550b73 | 118 | |
chris | 15:67dfa5550b73 | 119 | wr_cmd(0x22); // voltage resistor ratio |
chris | 15:67dfa5550b73 | 120 | wr_cmd(0x2F); // power on |
chris | 15:67dfa5550b73 | 121 | //wr_cmd(0xA4); // LCD display ram |
chris | 15:67dfa5550b73 | 122 | wr_cmd(0x40); // start line = 0 |
chris | 15:67dfa5550b73 | 123 | wr_cmd(0xAF); // display ON |
chris | 15:67dfa5550b73 | 124 | |
chris | 15:67dfa5550b73 | 125 | wr_cmd(0x81); // set contrast |
chris | 15:67dfa5550b73 | 126 | wr_cmd(0x17); // set contrast |
chris | 15:67dfa5550b73 | 127 | |
chris | 15:67dfa5550b73 | 128 | wr_cmd(0xA6); // display normal |
chris | 15:67dfa5550b73 | 129 | |
chris | 15:67dfa5550b73 | 130 | |
chris | 15:67dfa5550b73 | 131 | // clear and update LCD |
chris | 15:67dfa5550b73 | 132 | memset(buffer,0x00,512); // clear display buffer |
chris | 15:67dfa5550b73 | 133 | copy_to_lcd(); |
chris | 15:67dfa5550b73 | 134 | auto_up = 1; // switch on auto update |
chris | 15:67dfa5550b73 | 135 | // dont do this by default. Make the user call |
chris | 15:67dfa5550b73 | 136 | //claim(stdout); // redirekt printf to lcd |
chris | 15:67dfa5550b73 | 137 | locate(0,0); |
chris | 15:67dfa5550b73 | 138 | set_font((unsigned char*)Small_7); // standart font |
chris | 15:67dfa5550b73 | 139 | } |
chris | 15:67dfa5550b73 | 140 | |
chris | 15:67dfa5550b73 | 141 | // set one pixel in buffer |
chris | 15:67dfa5550b73 | 142 | |
co657_frmb | 18:8c294697c901 | 143 | void C12832::pixel (int x, int y, int color) |
chris | 15:67dfa5550b73 | 144 | { |
co657_frmb | 18:8c294697c901 | 145 | if ((x >= 128) || (y >= 32) || (x < 0) || (y < 0)) { |
co657_frmb | 18:8c294697c901 | 146 | /* out of bounds */ |
co657_frmb | 18:8c294697c901 | 147 | return; |
co657_frmb | 18:8c294697c901 | 148 | } |
chris | 15:67dfa5550b73 | 149 | |
co657_frmb | 18:8c294697c901 | 150 | if (draw_mode == NORMAL) { |
co657_frmb | 18:8c294697c901 | 151 | if (color == 0) { |
co657_frmb | 19:de1f73b31288 | 152 | buffer[x + ((y & ~7) << 4)] &= ~(1 << (y & 0x07)); // erase pixel |
co657_frmb | 18:8c294697c901 | 153 | } else { |
co657_frmb | 19:de1f73b31288 | 154 | buffer[x + ((y & ~7) << 4)] |= (1 << (y & 0x07)); // set pixel |
co657_frmb | 18:8c294697c901 | 155 | } |
chris | 15:67dfa5550b73 | 156 | } else { // XOR mode |
co657_frmb | 18:8c294697c901 | 157 | if (color == 1) { |
co657_frmb | 19:de1f73b31288 | 158 | buffer[x + ((y & ~7) << 4)] ^= (1 << (y & 0x07)); // xor pixel |
co657_frmb | 18:8c294697c901 | 159 | } |
co657_frmb | 18:8c294697c901 | 160 | } |
co657_frmb | 18:8c294697c901 | 161 | } |
co657_frmb | 18:8c294697c901 | 162 | |
co657_frmb | 18:8c294697c901 | 163 | /* plots a pixel, but without bounds checking (assumed to be done elsewhere) */ |
co657_frmb | 18:8c294697c901 | 164 | void C12832::pixel_nochk (int x, int y, int colour) |
co657_frmb | 18:8c294697c901 | 165 | { |
co657_frmb | 18:8c294697c901 | 166 | if (draw_mode == NORMAL) { |
co657_frmb | 18:8c294697c901 | 167 | if (colour == 0) { |
co657_frmb | 19:de1f73b31288 | 168 | buffer[x + ((y & ~7) << 4)] &= ~(1 << (y & 0x07)); // erase pixel |
co657_frmb | 18:8c294697c901 | 169 | } else { |
co657_frmb | 19:de1f73b31288 | 170 | buffer[x + ((y & ~7) << 4)] |= (1 << (y & 0x07)); // set pixel |
co657_frmb | 18:8c294697c901 | 171 | } |
co657_frmb | 18:8c294697c901 | 172 | } else { // XOR mode |
co657_frmb | 18:8c294697c901 | 173 | if (colour == 1) { |
co657_frmb | 19:de1f73b31288 | 174 | buffer[x + ((y & ~7) << 4)] ^= (1 << (y & 0x07)); // xor pixel |
co657_frmb | 18:8c294697c901 | 175 | } |
chris | 15:67dfa5550b73 | 176 | } |
chris | 15:67dfa5550b73 | 177 | } |
chris | 15:67dfa5550b73 | 178 | |
chris | 15:67dfa5550b73 | 179 | // update lcd |
chris | 15:67dfa5550b73 | 180 | |
chris | 16:7de323fa46fe | 181 | void C12832::copy_to_lcd(void) |
chris | 15:67dfa5550b73 | 182 | { |
chris | 15:67dfa5550b73 | 183 | |
chris | 15:67dfa5550b73 | 184 | int i=0; |
chris | 15:67dfa5550b73 | 185 | |
chris | 15:67dfa5550b73 | 186 | //page 0 |
chris | 15:67dfa5550b73 | 187 | wr_cmd(0x00); // set column low nibble 0 |
chris | 15:67dfa5550b73 | 188 | wr_cmd(0x10); // set column hi nibble 0 |
chris | 15:67dfa5550b73 | 189 | wr_cmd(0xB0); // set page address 0 |
chris | 15:67dfa5550b73 | 190 | _A0 = 1; |
chris | 15:67dfa5550b73 | 191 | for(i=0; i<128; i++) { |
chris | 15:67dfa5550b73 | 192 | wr_dat(buffer[i]); |
chris | 15:67dfa5550b73 | 193 | } |
chris | 15:67dfa5550b73 | 194 | |
chris | 15:67dfa5550b73 | 195 | // page 1 |
chris | 15:67dfa5550b73 | 196 | wr_cmd(0x00); // set column low nibble 0 |
chris | 15:67dfa5550b73 | 197 | wr_cmd(0x10); // set column hi nibble 0 |
chris | 15:67dfa5550b73 | 198 | wr_cmd(0xB1); // set page address 1 |
chris | 15:67dfa5550b73 | 199 | _A0 = 1; |
chris | 15:67dfa5550b73 | 200 | for(i=128; i<256; i++) { |
chris | 15:67dfa5550b73 | 201 | wr_dat(buffer[i]); |
chris | 15:67dfa5550b73 | 202 | } |
chris | 15:67dfa5550b73 | 203 | |
chris | 15:67dfa5550b73 | 204 | //page 2 |
chris | 15:67dfa5550b73 | 205 | wr_cmd(0x00); // set column low nibble 0 |
chris | 15:67dfa5550b73 | 206 | wr_cmd(0x10); // set column hi nibble 0 |
chris | 15:67dfa5550b73 | 207 | wr_cmd(0xB2); // set page address 2 |
chris | 15:67dfa5550b73 | 208 | _A0 = 1; |
chris | 15:67dfa5550b73 | 209 | for(i=256; i<384; i++) { |
chris | 15:67dfa5550b73 | 210 | wr_dat(buffer[i]); |
chris | 15:67dfa5550b73 | 211 | } |
chris | 15:67dfa5550b73 | 212 | |
chris | 15:67dfa5550b73 | 213 | //page 3 |
chris | 15:67dfa5550b73 | 214 | wr_cmd(0x00); // set column low nibble 0 |
chris | 15:67dfa5550b73 | 215 | wr_cmd(0x10); // set column hi nibble 0 |
chris | 15:67dfa5550b73 | 216 | wr_cmd(0xB3); // set page address 3 |
chris | 15:67dfa5550b73 | 217 | _A0 = 1; |
chris | 15:67dfa5550b73 | 218 | |
chris | 15:67dfa5550b73 | 219 | _CS = 0; |
chris | 15:67dfa5550b73 | 220 | |
chris | 15:67dfa5550b73 | 221 | for(i=384; i<512; i++) { |
chris | 15:67dfa5550b73 | 222 | wr_dat(buffer[i]); |
chris | 15:67dfa5550b73 | 223 | } |
chris | 15:67dfa5550b73 | 224 | |
chris | 15:67dfa5550b73 | 225 | } |
chris | 15:67dfa5550b73 | 226 | |
co657_frmb | 18:8c294697c901 | 227 | void C12832::cls (void) |
chris | 15:67dfa5550b73 | 228 | { |
co657_frmb | 18:8c294697c901 | 229 | memset (buffer, 0x00, 512); // clear display buffer |
co657_frmb | 18:8c294697c901 | 230 | if (auto_up) { |
co657_frmb | 18:8c294697c901 | 231 | copy_to_lcd(); |
co657_frmb | 18:8c294697c901 | 232 | } |
chris | 15:67dfa5550b73 | 233 | } |
chris | 15:67dfa5550b73 | 234 | |
co657_frmb | 18:8c294697c901 | 235 | /* |
co657_frmb | 18:8c294697c901 | 236 | * based on Foley and van Dam, Computer Graphics Principles and Practice, |
co657_frmb | 18:8c294697c901 | 237 | * Second edition in C, Fig 3.8 |
co657_frmb | 18:8c294697c901 | 238 | * |
co657_frmb | 18:8c294697c901 | 239 | * Adapted back into C from David Wood's occam implementation (line.occ). |
co657_frmb | 18:8c294697c901 | 240 | */ |
co657_frmb | 18:8c294697c901 | 241 | void C12832::line (int x0, int y0, int x1, int y1, int colour) |
chris | 15:67dfa5550b73 | 242 | { |
co657_frmb | 18:8c294697c901 | 243 | int dx = x1 - x0; |
co657_frmb | 18:8c294697c901 | 244 | int dy = y1 - y0; |
co657_frmb | 18:8c294697c901 | 245 | int x, y, a_dx, s_x, a_dy, s_y; |
co657_frmb | 18:8c294697c901 | 246 | int d, strt, diag; |
chris | 15:67dfa5550b73 | 247 | |
co657_frmb | 18:8c294697c901 | 248 | |
co657_frmb | 18:8c294697c901 | 249 | if (dx == 0) { |
co657_frmb | 18:8c294697c901 | 250 | /* vertical line */ |
co657_frmb | 18:8c294697c901 | 251 | if (y0 > y1) { |
co657_frmb | 18:8c294697c901 | 252 | vline (x0, y1, y0, colour); |
co657_frmb | 18:8c294697c901 | 253 | } else { |
co657_frmb | 18:8c294697c901 | 254 | vline (x0, y0, y1, colour); |
co657_frmb | 18:8c294697c901 | 255 | } |
co657_frmb | 17:67f9ca828270 | 256 | return; |
co657_frmb | 18:8c294697c901 | 257 | } |
co657_frmb | 18:8c294697c901 | 258 | if (dy == 0) { |
co657_frmb | 18:8c294697c901 | 259 | /* horizontal line */ |
co657_frmb | 18:8c294697c901 | 260 | if (x0 > x1) { |
co657_frmb | 18:8c294697c901 | 261 | hline (x1, y0, x0, colour); |
co657_frmb | 18:8c294697c901 | 262 | } else { |
co657_frmb | 18:8c294697c901 | 263 | hline (x0, y0, x1, colour); |
co657_frmb | 18:8c294697c901 | 264 | } |
co657_frmb | 18:8c294697c901 | 265 | return; |
co657_frmb | 18:8c294697c901 | 266 | } |
co657_frmb | 18:8c294697c901 | 267 | |
co657_frmb | 18:8c294697c901 | 268 | if ((x0 >= 128) || (x0 < 0) || (y0 >= 32) || (y0 < 0)) { |
co657_frmb | 18:8c294697c901 | 269 | /* starts outside raster, so abort */ |
co657_frmb | 17:67f9ca828270 | 270 | return; |
co657_frmb | 17:67f9ca828270 | 271 | } |
co657_frmb | 18:8c294697c901 | 272 | |
co657_frmb | 18:8c294697c901 | 273 | x = x0; |
co657_frmb | 18:8c294697c901 | 274 | y = y0; |
chris | 15:67dfa5550b73 | 275 | if (dx > 0) { |
co657_frmb | 18:8c294697c901 | 276 | a_dx = dx; s_x = 1; |
chris | 15:67dfa5550b73 | 277 | } else { |
co657_frmb | 18:8c294697c901 | 278 | a_dx = -dx; s_x = -1; |
co657_frmb | 18:8c294697c901 | 279 | } |
co657_frmb | 18:8c294697c901 | 280 | if (dy > 0) { |
co657_frmb | 18:8c294697c901 | 281 | a_dy = dy; s_y = 1; |
co657_frmb | 18:8c294697c901 | 282 | } else { |
co657_frmb | 18:8c294697c901 | 283 | a_dy = -dy; s_y = -1; |
chris | 15:67dfa5550b73 | 284 | } |
co657_frmb | 18:8c294697c901 | 285 | |
co657_frmb | 18:8c294697c901 | 286 | if (a_dx > a_dy) { |
co657_frmb | 18:8c294697c901 | 287 | strt = a_dy * 2; /* straight */ |
co657_frmb | 18:8c294697c901 | 288 | diag = strt - (2 * a_dx); /* diagonal */ |
co657_frmb | 18:8c294697c901 | 289 | d = strt - a_dx; |
chris | 15:67dfa5550b73 | 290 | |
co657_frmb | 20:dbee79303f9a | 291 | while ((a_dx >= 0) && (x >= 0) && (x < 128)) { |
co657_frmb | 18:8c294697c901 | 292 | pixel_nochk (x, y, colour); |
co657_frmb | 18:8c294697c901 | 293 | x += s_x; |
co657_frmb | 18:8c294697c901 | 294 | a_dx--; |
co657_frmb | 18:8c294697c901 | 295 | |
co657_frmb | 18:8c294697c901 | 296 | if (d <= 0) { |
co657_frmb | 18:8c294697c901 | 297 | d += strt; |
co657_frmb | 18:8c294697c901 | 298 | } else { |
co657_frmb | 18:8c294697c901 | 299 | d += diag; |
co657_frmb | 18:8c294697c901 | 300 | y += s_y; |
co657_frmb | 20:dbee79303f9a | 301 | if ((y < 0) || (y >= 32)) { |
co657_frmb | 20:dbee79303f9a | 302 | break; /* while() */ |
co657_frmb | 20:dbee79303f9a | 303 | } |
co657_frmb | 18:8c294697c901 | 304 | } |
co657_frmb | 18:8c294697c901 | 305 | } |
chris | 15:67dfa5550b73 | 306 | } else { |
co657_frmb | 18:8c294697c901 | 307 | strt = a_dx * 2; /* straight */ |
co657_frmb | 18:8c294697c901 | 308 | diag = strt - (2 * a_dy); /* diagonal */ |
co657_frmb | 18:8c294697c901 | 309 | d = strt - a_dy; |
co657_frmb | 18:8c294697c901 | 310 | |
co657_frmb | 20:dbee79303f9a | 311 | while ((a_dy >= 0) && (y >= 0) && (y < 32)) { |
co657_frmb | 18:8c294697c901 | 312 | pixel_nochk (x, y, colour); |
co657_frmb | 18:8c294697c901 | 313 | y += s_y; |
co657_frmb | 18:8c294697c901 | 314 | a_dy--; |
co657_frmb | 18:8c294697c901 | 315 | |
co657_frmb | 18:8c294697c901 | 316 | if (d <= 0) { |
co657_frmb | 18:8c294697c901 | 317 | d += strt; |
co657_frmb | 18:8c294697c901 | 318 | } else { |
co657_frmb | 18:8c294697c901 | 319 | d += diag; |
co657_frmb | 18:8c294697c901 | 320 | x += s_x; |
co657_frmb | 20:dbee79303f9a | 321 | if ((x < 0) || (x >= 128)) { |
co657_frmb | 20:dbee79303f9a | 322 | break; /* while() */ |
co657_frmb | 20:dbee79303f9a | 323 | } |
co657_frmb | 18:8c294697c901 | 324 | } |
co657_frmb | 18:8c294697c901 | 325 | } |
chris | 15:67dfa5550b73 | 326 | } |
chris | 15:67dfa5550b73 | 327 | |
co657_frmb | 17:67f9ca828270 | 328 | if (auto_up) { |
co657_frmb | 17:67f9ca828270 | 329 | copy_to_lcd (); |
co657_frmb | 17:67f9ca828270 | 330 | } |
co657_frmb | 17:67f9ca828270 | 331 | } |
co657_frmb | 17:67f9ca828270 | 332 | |
co657_frmb | 18:8c294697c901 | 333 | /* Note: x1 >= x0 */ |
co657_frmb | 18:8c294697c901 | 334 | void C12832::hline (int x0, int y0, int x1, int colour) |
co657_frmb | 17:67f9ca828270 | 335 | { |
co657_frmb | 18:8c294697c901 | 336 | int x; |
co657_frmb | 18:8c294697c901 | 337 | int yoff; |
co657_frmb | 18:8c294697c901 | 338 | uint8_t ybit; |
co657_frmb | 18:8c294697c901 | 339 | |
co657_frmb | 18:8c294697c901 | 340 | if (((x0 < 0) && (x1 < 0)) || ((x0 >= 128) && (x1 >= 128)) || (y0 < 0) || (y0 >= 32)) { |
co657_frmb | 18:8c294697c901 | 341 | return; /* completely outside */ |
co657_frmb | 18:8c294697c901 | 342 | } |
co657_frmb | 18:8c294697c901 | 343 | if (x0 < 0) { |
co657_frmb | 18:8c294697c901 | 344 | x0 = 0; |
co657_frmb | 18:8c294697c901 | 345 | } else if (x1 >= 128) { |
co657_frmb | 18:8c294697c901 | 346 | x1 = 127; |
co657_frmb | 18:8c294697c901 | 347 | } |
co657_frmb | 18:8c294697c901 | 348 | |
co657_frmb | 19:de1f73b31288 | 349 | yoff = ((y0 & ~7) << 4); |
co657_frmb | 18:8c294697c901 | 350 | ybit = (1 << (y0 & 0x07)); |
co657_frmb | 17:67f9ca828270 | 351 | |
co657_frmb | 18:8c294697c901 | 352 | if (draw_mode == NORMAL) { |
co657_frmb | 18:8c294697c901 | 353 | if (colour == 0) { |
co657_frmb | 18:8c294697c901 | 354 | for (x=x0; x<=x1; x++) { |
co657_frmb | 18:8c294697c901 | 355 | buffer[x + yoff] &= ~ybit; // erase pixel |
co657_frmb | 18:8c294697c901 | 356 | } |
co657_frmb | 18:8c294697c901 | 357 | } else { |
co657_frmb | 18:8c294697c901 | 358 | for (x=x0; x<=x1; x++) { |
co657_frmb | 18:8c294697c901 | 359 | buffer[x + yoff] |= ybit; // set pixel |
co657_frmb | 18:8c294697c901 | 360 | } |
co657_frmb | 18:8c294697c901 | 361 | } |
co657_frmb | 18:8c294697c901 | 362 | } else { // XOR mode |
co657_frmb | 18:8c294697c901 | 363 | if (colour == 1) { |
co657_frmb | 18:8c294697c901 | 364 | for (x=x0; x<=x1; x++) { |
co657_frmb | 18:8c294697c901 | 365 | buffer[x + yoff] ^= ybit; // xor pixel |
co657_frmb | 18:8c294697c901 | 366 | } |
co657_frmb | 18:8c294697c901 | 367 | } |
co657_frmb | 18:8c294697c901 | 368 | } |
co657_frmb | 18:8c294697c901 | 369 | |
co657_frmb | 18:8c294697c901 | 370 | if (auto_up) { |
co657_frmb | 18:8c294697c901 | 371 | copy_to_lcd (); |
co657_frmb | 18:8c294697c901 | 372 | } |
co657_frmb | 18:8c294697c901 | 373 | } |
co657_frmb | 18:8c294697c901 | 374 | |
co657_frmb | 18:8c294697c901 | 375 | /* Note: y1 >= y0 */ |
co657_frmb | 18:8c294697c901 | 376 | void C12832::vline (int x0, int y0, int y1, int colour) |
co657_frmb | 18:8c294697c901 | 377 | { |
co657_frmb | 18:8c294697c901 | 378 | if (((y0 < 0) && (y1 < 0)) || ((y0 >= 32) && (y1 >= 32)) || (x0 < 0) || (x0 >= 128)) { |
co657_frmb | 18:8c294697c901 | 379 | return; /* completely outside */ |
co657_frmb | 18:8c294697c901 | 380 | } |
co657_frmb | 18:8c294697c901 | 381 | if (y0 < 0) { |
co657_frmb | 18:8c294697c901 | 382 | y0 = 0; |
co657_frmb | 18:8c294697c901 | 383 | } else if (y1 >= 32) { |
co657_frmb | 18:8c294697c901 | 384 | y1 = 31; |
co657_frmb | 17:67f9ca828270 | 385 | } |
co657_frmb | 18:8c294697c901 | 386 | |
co657_frmb | 18:8c294697c901 | 387 | if ((y0 & ~0x07) == (y1 & ~0x07)) { |
co657_frmb | 18:8c294697c901 | 388 | /* first and last pixels are in the same byte */ |
co657_frmb | 18:8c294697c901 | 389 | uint8_t ybits = ((1 << ((y1 & 0x07) + 1)) - 1) ^ ((1 << (y0 & 0x07)) - 1); |
co657_frmb | 19:de1f73b31288 | 390 | int yoff = (y0 & ~7) << 4; /* same as y1 */ |
co657_frmb | 18:8c294697c901 | 391 | |
co657_frmb | 18:8c294697c901 | 392 | if (draw_mode == NORMAL) { |
co657_frmb | 18:8c294697c901 | 393 | if (colour == 1) { |
co657_frmb | 18:8c294697c901 | 394 | buffer[x0 + yoff] |= ybits; |
co657_frmb | 18:8c294697c901 | 395 | } else { |
co657_frmb | 18:8c294697c901 | 396 | buffer[x0 + yoff] &= ~ybits; |
co657_frmb | 18:8c294697c901 | 397 | } |
co657_frmb | 18:8c294697c901 | 398 | } else { /* XOR mode */ |
co657_frmb | 18:8c294697c901 | 399 | buffer[x0 + yoff] ^= ybits; |
co657_frmb | 18:8c294697c901 | 400 | } |
co657_frmb | 18:8c294697c901 | 401 | } else { |
co657_frmb | 18:8c294697c901 | 402 | uint8_t st_ybits = (0xff << (y0 & 0x07)); |
co657_frmb | 18:8c294697c901 | 403 | uint8_t sp_ybits = ((1 << ((y1 & 0x07) + 1)) - 1); |
co657_frmb | 19:de1f73b31288 | 404 | int st_yoff = (y0 & ~7) << 4; |
co657_frmb | 19:de1f73b31288 | 405 | int sp_yoff = (y1 & ~7) << 4; |
co657_frmb | 18:8c294697c901 | 406 | |
co657_frmb | 18:8c294697c901 | 407 | /* fill in first byte */ |
co657_frmb | 18:8c294697c901 | 408 | if (draw_mode == NORMAL) { |
co657_frmb | 18:8c294697c901 | 409 | if (colour == 1) { |
co657_frmb | 18:8c294697c901 | 410 | buffer[x0 + st_yoff] |= st_ybits; |
co657_frmb | 18:8c294697c901 | 411 | } else { |
co657_frmb | 18:8c294697c901 | 412 | buffer[x0 + st_yoff] &= ~st_ybits; |
co657_frmb | 18:8c294697c901 | 413 | } |
co657_frmb | 18:8c294697c901 | 414 | } else { /* XOR mode */ |
co657_frmb | 18:8c294697c901 | 415 | buffer[x0 + st_yoff] ^= st_ybits; |
co657_frmb | 18:8c294697c901 | 416 | } |
co657_frmb | 18:8c294697c901 | 417 | for (st_yoff += 128; st_yoff < sp_yoff; st_yoff += 128) { |
co657_frmb | 18:8c294697c901 | 418 | /* intervening bytes 0xff */ |
co657_frmb | 18:8c294697c901 | 419 | if (draw_mode == NORMAL) { |
co657_frmb | 18:8c294697c901 | 420 | if (colour == 1) { |
co657_frmb | 18:8c294697c901 | 421 | buffer[x0 + st_yoff] = 0xff; |
co657_frmb | 18:8c294697c901 | 422 | } else { |
co657_frmb | 18:8c294697c901 | 423 | buffer[x0 + st_yoff] = 0x00; |
co657_frmb | 18:8c294697c901 | 424 | } |
co657_frmb | 18:8c294697c901 | 425 | } else { /* XOR mode */ |
co657_frmb | 18:8c294697c901 | 426 | buffer[x0 + st_yoff] ^= 0xff; |
co657_frmb | 18:8c294697c901 | 427 | } |
co657_frmb | 18:8c294697c901 | 428 | } |
co657_frmb | 18:8c294697c901 | 429 | /* and the last byte */ |
co657_frmb | 18:8c294697c901 | 430 | if (draw_mode == NORMAL) { |
co657_frmb | 18:8c294697c901 | 431 | if (colour == 1) { |
co657_frmb | 18:8c294697c901 | 432 | buffer[x0 + sp_yoff] |= sp_ybits; |
co657_frmb | 18:8c294697c901 | 433 | } else { |
co657_frmb | 18:8c294697c901 | 434 | buffer[x0 + sp_yoff] &= ~sp_ybits; |
co657_frmb | 18:8c294697c901 | 435 | } |
co657_frmb | 18:8c294697c901 | 436 | } else { /* XOR mode */ |
co657_frmb | 18:8c294697c901 | 437 | buffer[x0 + sp_yoff] ^= sp_ybits; |
co657_frmb | 18:8c294697c901 | 438 | } |
co657_frmb | 18:8c294697c901 | 439 | } |
co657_frmb | 18:8c294697c901 | 440 | |
co657_frmb | 17:67f9ca828270 | 441 | if (auto_up) { |
co657_frmb | 17:67f9ca828270 | 442 | copy_to_lcd (); |
co657_frmb | 17:67f9ca828270 | 443 | } |
co657_frmb | 17:67f9ca828270 | 444 | } |
co657_frmb | 17:67f9ca828270 | 445 | |
chris | 16:7de323fa46fe | 446 | void C12832::rect(int x0, int y0, int x1, int y1, int color) |
chris | 15:67dfa5550b73 | 447 | { |
chris | 15:67dfa5550b73 | 448 | |
chris | 15:67dfa5550b73 | 449 | if (x1 > x0) line(x0,y0,x1,y0,color); |
chris | 15:67dfa5550b73 | 450 | else line(x1,y0,x0,y0,color); |
chris | 15:67dfa5550b73 | 451 | |
chris | 15:67dfa5550b73 | 452 | if (y1 > y0) line(x0,y0,x0,y1,color); |
chris | 15:67dfa5550b73 | 453 | else line(x0,y1,x0,y0,color); |
chris | 15:67dfa5550b73 | 454 | |
chris | 15:67dfa5550b73 | 455 | if (x1 > x0) line(x0,y1,x1,y1,color); |
chris | 15:67dfa5550b73 | 456 | else line(x1,y1,x0,y1,color); |
chris | 15:67dfa5550b73 | 457 | |
chris | 15:67dfa5550b73 | 458 | if (y1 > y0) line(x1,y0,x1,y1,color); |
chris | 15:67dfa5550b73 | 459 | else line(x1,y1,x1,y0,color); |
chris | 15:67dfa5550b73 | 460 | |
chris | 15:67dfa5550b73 | 461 | if(auto_up) copy_to_lcd(); |
chris | 15:67dfa5550b73 | 462 | } |
chris | 15:67dfa5550b73 | 463 | |
chris | 16:7de323fa46fe | 464 | void C12832::fillrect(int x0, int y0, int x1, int y1, int color) |
chris | 15:67dfa5550b73 | 465 | { |
co657_frmb | 19:de1f73b31288 | 466 | int l,i; |
chris | 15:67dfa5550b73 | 467 | if(x0 > x1) { |
chris | 15:67dfa5550b73 | 468 | i = x0; |
chris | 15:67dfa5550b73 | 469 | x0 = x1; |
chris | 15:67dfa5550b73 | 470 | x1 = i; |
chris | 15:67dfa5550b73 | 471 | } |
chris | 15:67dfa5550b73 | 472 | |
chris | 15:67dfa5550b73 | 473 | if(y0 > y1) { |
chris | 15:67dfa5550b73 | 474 | i = y0; |
chris | 15:67dfa5550b73 | 475 | y0 = y1; |
chris | 15:67dfa5550b73 | 476 | y1 = i; |
chris | 15:67dfa5550b73 | 477 | } |
chris | 15:67dfa5550b73 | 478 | |
chris | 15:67dfa5550b73 | 479 | for(l = x0; l<= x1; l ++) { |
co657_frmb | 19:de1f73b31288 | 480 | vline (l, y0, y1, color); |
chris | 15:67dfa5550b73 | 481 | } |
chris | 15:67dfa5550b73 | 482 | if(auto_up) copy_to_lcd(); |
chris | 15:67dfa5550b73 | 483 | } |
chris | 15:67dfa5550b73 | 484 | |
chris | 15:67dfa5550b73 | 485 | |
chris | 15:67dfa5550b73 | 486 | |
chris | 16:7de323fa46fe | 487 | void C12832::circle(int x0, int y0, int r, int color) |
chris | 15:67dfa5550b73 | 488 | { |
chris | 15:67dfa5550b73 | 489 | |
chris | 15:67dfa5550b73 | 490 | int draw_x0, draw_y0; |
chris | 15:67dfa5550b73 | 491 | int draw_x1, draw_y1; |
chris | 15:67dfa5550b73 | 492 | int draw_x2, draw_y2; |
chris | 15:67dfa5550b73 | 493 | int draw_x3, draw_y3; |
chris | 15:67dfa5550b73 | 494 | int draw_x4, draw_y4; |
chris | 15:67dfa5550b73 | 495 | int draw_x5, draw_y5; |
chris | 15:67dfa5550b73 | 496 | int draw_x6, draw_y6; |
chris | 15:67dfa5550b73 | 497 | int draw_x7, draw_y7; |
chris | 15:67dfa5550b73 | 498 | int xx, yy; |
chris | 15:67dfa5550b73 | 499 | int di; |
chris | 15:67dfa5550b73 | 500 | //WindowMax(); |
chris | 15:67dfa5550b73 | 501 | if (r == 0) { /* no radius */ |
chris | 15:67dfa5550b73 | 502 | return; |
chris | 15:67dfa5550b73 | 503 | } |
chris | 15:67dfa5550b73 | 504 | |
chris | 15:67dfa5550b73 | 505 | draw_x0 = draw_x1 = x0; |
chris | 15:67dfa5550b73 | 506 | draw_y0 = draw_y1 = y0 + r; |
chris | 15:67dfa5550b73 | 507 | if (draw_y0 < height()) { |
chris | 15:67dfa5550b73 | 508 | pixel(draw_x0, draw_y0, color); /* 90 degree */ |
chris | 15:67dfa5550b73 | 509 | } |
chris | 15:67dfa5550b73 | 510 | |
chris | 15:67dfa5550b73 | 511 | draw_x2 = draw_x3 = x0; |
chris | 15:67dfa5550b73 | 512 | draw_y2 = draw_y3 = y0 - r; |
chris | 15:67dfa5550b73 | 513 | if (draw_y2 >= 0) { |
chris | 15:67dfa5550b73 | 514 | pixel(draw_x2, draw_y2, color); /* 270 degree */ |
chris | 15:67dfa5550b73 | 515 | } |
chris | 15:67dfa5550b73 | 516 | |
chris | 15:67dfa5550b73 | 517 | draw_x4 = draw_x6 = x0 + r; |
chris | 15:67dfa5550b73 | 518 | draw_y4 = draw_y6 = y0; |
chris | 15:67dfa5550b73 | 519 | if (draw_x4 < width()) { |
chris | 15:67dfa5550b73 | 520 | pixel(draw_x4, draw_y4, color); /* 0 degree */ |
chris | 15:67dfa5550b73 | 521 | } |
chris | 15:67dfa5550b73 | 522 | |
chris | 15:67dfa5550b73 | 523 | draw_x5 = draw_x7 = x0 - r; |
chris | 15:67dfa5550b73 | 524 | draw_y5 = draw_y7 = y0; |
chris | 15:67dfa5550b73 | 525 | if (draw_x5>=0) { |
chris | 15:67dfa5550b73 | 526 | pixel(draw_x5, draw_y5, color); /* 180 degree */ |
chris | 15:67dfa5550b73 | 527 | } |
chris | 15:67dfa5550b73 | 528 | |
chris | 15:67dfa5550b73 | 529 | if (r == 1) { |
chris | 15:67dfa5550b73 | 530 | return; |
chris | 15:67dfa5550b73 | 531 | } |
chris | 15:67dfa5550b73 | 532 | |
chris | 15:67dfa5550b73 | 533 | di = 3 - 2*r; |
chris | 15:67dfa5550b73 | 534 | xx = 0; |
chris | 15:67dfa5550b73 | 535 | yy = r; |
chris | 15:67dfa5550b73 | 536 | while (xx < yy) { |
chris | 15:67dfa5550b73 | 537 | |
chris | 15:67dfa5550b73 | 538 | if (di < 0) { |
chris | 15:67dfa5550b73 | 539 | di += 4*xx + 6; |
chris | 15:67dfa5550b73 | 540 | } else { |
chris | 15:67dfa5550b73 | 541 | di += 4*(xx - yy) + 10; |
chris | 15:67dfa5550b73 | 542 | yy--; |
chris | 15:67dfa5550b73 | 543 | draw_y0--; |
chris | 15:67dfa5550b73 | 544 | draw_y1--; |
chris | 15:67dfa5550b73 | 545 | draw_y2++; |
chris | 15:67dfa5550b73 | 546 | draw_y3++; |
chris | 15:67dfa5550b73 | 547 | draw_x4--; |
chris | 15:67dfa5550b73 | 548 | draw_x5++; |
chris | 15:67dfa5550b73 | 549 | draw_x6--; |
chris | 15:67dfa5550b73 | 550 | draw_x7++; |
chris | 15:67dfa5550b73 | 551 | } |
chris | 15:67dfa5550b73 | 552 | xx++; |
chris | 15:67dfa5550b73 | 553 | draw_x0++; |
chris | 15:67dfa5550b73 | 554 | draw_x1--; |
chris | 15:67dfa5550b73 | 555 | draw_x2++; |
chris | 15:67dfa5550b73 | 556 | draw_x3--; |
chris | 15:67dfa5550b73 | 557 | draw_y4++; |
chris | 15:67dfa5550b73 | 558 | draw_y5++; |
chris | 15:67dfa5550b73 | 559 | draw_y6--; |
chris | 15:67dfa5550b73 | 560 | draw_y7--; |
chris | 15:67dfa5550b73 | 561 | |
chris | 15:67dfa5550b73 | 562 | if ( (draw_x0 <= width()) && (draw_y0>=0) ) { |
chris | 15:67dfa5550b73 | 563 | pixel(draw_x0, draw_y0, color); |
chris | 15:67dfa5550b73 | 564 | } |
chris | 15:67dfa5550b73 | 565 | |
chris | 15:67dfa5550b73 | 566 | if ( (draw_x1 >= 0) && (draw_y1 >= 0) ) { |
chris | 15:67dfa5550b73 | 567 | pixel(draw_x1, draw_y1, color); |
chris | 15:67dfa5550b73 | 568 | } |
chris | 15:67dfa5550b73 | 569 | |
chris | 15:67dfa5550b73 | 570 | if ( (draw_x2 <= width()) && (draw_y2 <= height()) ) { |
chris | 15:67dfa5550b73 | 571 | pixel(draw_x2, draw_y2, color); |
chris | 15:67dfa5550b73 | 572 | } |
chris | 15:67dfa5550b73 | 573 | |
chris | 15:67dfa5550b73 | 574 | if ( (draw_x3 >=0 ) && (draw_y3 <= height()) ) { |
chris | 15:67dfa5550b73 | 575 | pixel(draw_x3, draw_y3, color); |
chris | 15:67dfa5550b73 | 576 | } |
chris | 15:67dfa5550b73 | 577 | |
chris | 15:67dfa5550b73 | 578 | if ( (draw_x4 <= width()) && (draw_y4 >= 0) ) { |
chris | 15:67dfa5550b73 | 579 | pixel(draw_x4, draw_y4, color); |
chris | 15:67dfa5550b73 | 580 | } |
chris | 15:67dfa5550b73 | 581 | |
chris | 15:67dfa5550b73 | 582 | if ( (draw_x5 >= 0) && (draw_y5 >= 0) ) { |
chris | 15:67dfa5550b73 | 583 | pixel(draw_x5, draw_y5, color); |
chris | 15:67dfa5550b73 | 584 | } |
chris | 15:67dfa5550b73 | 585 | if ( (draw_x6 <=width()) && (draw_y6 <= height()) ) { |
chris | 15:67dfa5550b73 | 586 | pixel(draw_x6, draw_y6, color); |
chris | 15:67dfa5550b73 | 587 | } |
chris | 15:67dfa5550b73 | 588 | if ( (draw_x7 >= 0) && (draw_y7 <= height()) ) { |
chris | 15:67dfa5550b73 | 589 | pixel(draw_x7, draw_y7, color); |
chris | 15:67dfa5550b73 | 590 | } |
chris | 15:67dfa5550b73 | 591 | } |
chris | 15:67dfa5550b73 | 592 | if(auto_up) copy_to_lcd(); |
chris | 15:67dfa5550b73 | 593 | } |
chris | 15:67dfa5550b73 | 594 | |
chris | 16:7de323fa46fe | 595 | void C12832::fillcircle(int x, int y, int r, int color) |
chris | 15:67dfa5550b73 | 596 | { |
chris | 15:67dfa5550b73 | 597 | int i,up; |
chris | 15:67dfa5550b73 | 598 | up = auto_up; |
chris | 15:67dfa5550b73 | 599 | auto_up = 0; // off |
chris | 15:67dfa5550b73 | 600 | for (i = 0; i <= r; i++) |
chris | 15:67dfa5550b73 | 601 | circle(x,y,i,color); |
chris | 15:67dfa5550b73 | 602 | auto_up = up; |
chris | 15:67dfa5550b73 | 603 | if(auto_up) copy_to_lcd(); |
chris | 15:67dfa5550b73 | 604 | } |
chris | 15:67dfa5550b73 | 605 | |
chris | 16:7de323fa46fe | 606 | void C12832::setmode(int mode) |
chris | 15:67dfa5550b73 | 607 | { |
chris | 15:67dfa5550b73 | 608 | draw_mode = mode; |
chris | 15:67dfa5550b73 | 609 | } |
chris | 15:67dfa5550b73 | 610 | |
chris | 16:7de323fa46fe | 611 | void C12832::locate(int x, int y) |
chris | 15:67dfa5550b73 | 612 | { |
chris | 15:67dfa5550b73 | 613 | char_x = x; |
chris | 15:67dfa5550b73 | 614 | char_y = y; |
chris | 15:67dfa5550b73 | 615 | } |
chris | 15:67dfa5550b73 | 616 | |
chris | 15:67dfa5550b73 | 617 | |
chris | 15:67dfa5550b73 | 618 | |
chris | 16:7de323fa46fe | 619 | int C12832::columns() |
chris | 15:67dfa5550b73 | 620 | { |
chris | 15:67dfa5550b73 | 621 | return width() / font[1]; |
chris | 15:67dfa5550b73 | 622 | } |
chris | 15:67dfa5550b73 | 623 | |
chris | 15:67dfa5550b73 | 624 | |
chris | 15:67dfa5550b73 | 625 | |
chris | 16:7de323fa46fe | 626 | int C12832::rows() |
chris | 15:67dfa5550b73 | 627 | { |
chris | 15:67dfa5550b73 | 628 | return height() / font[2]; |
chris | 15:67dfa5550b73 | 629 | } |
chris | 15:67dfa5550b73 | 630 | |
chris | 15:67dfa5550b73 | 631 | |
chris | 15:67dfa5550b73 | 632 | |
chris | 16:7de323fa46fe | 633 | int C12832::_putc(int value) |
chris | 15:67dfa5550b73 | 634 | { |
chris | 15:67dfa5550b73 | 635 | if (value == '\n') { // new line |
chris | 15:67dfa5550b73 | 636 | char_x = 0; |
chris | 15:67dfa5550b73 | 637 | char_y = char_y + font[2]; |
chris | 15:67dfa5550b73 | 638 | if (char_y >= height() - font[2]) { |
chris | 15:67dfa5550b73 | 639 | char_y = 0; |
chris | 15:67dfa5550b73 | 640 | } |
chris | 15:67dfa5550b73 | 641 | } else { |
chris | 15:67dfa5550b73 | 642 | character(char_x, char_y, value); |
chris | 15:67dfa5550b73 | 643 | if(auto_up) copy_to_lcd(); |
chris | 15:67dfa5550b73 | 644 | } |
chris | 15:67dfa5550b73 | 645 | return value; |
chris | 15:67dfa5550b73 | 646 | } |
chris | 15:67dfa5550b73 | 647 | |
chris | 16:7de323fa46fe | 648 | void C12832::character(int x, int y, int c) |
chris | 15:67dfa5550b73 | 649 | { |
chris | 15:67dfa5550b73 | 650 | unsigned int hor,vert,offset,bpl,j,i,b; |
chris | 15:67dfa5550b73 | 651 | unsigned char* zeichen; |
chris | 15:67dfa5550b73 | 652 | unsigned char z,w; |
chris | 15:67dfa5550b73 | 653 | |
chris | 15:67dfa5550b73 | 654 | if ((c < 31) || (c > 127)) return; // test char range |
chris | 15:67dfa5550b73 | 655 | |
chris | 15:67dfa5550b73 | 656 | // read font parameter from start of array |
chris | 15:67dfa5550b73 | 657 | offset = font[0]; // bytes / char |
chris | 15:67dfa5550b73 | 658 | hor = font[1]; // get hor size of font |
chris | 15:67dfa5550b73 | 659 | vert = font[2]; // get vert size of font |
chris | 15:67dfa5550b73 | 660 | bpl = font[3]; // bytes per line |
chris | 15:67dfa5550b73 | 661 | |
chris | 15:67dfa5550b73 | 662 | if (char_x + hor > width()) { |
chris | 15:67dfa5550b73 | 663 | char_x = 0; |
chris | 15:67dfa5550b73 | 664 | char_y = char_y + vert; |
chris | 15:67dfa5550b73 | 665 | if (char_y >= height() - font[2]) { |
chris | 15:67dfa5550b73 | 666 | char_y = 0; |
chris | 15:67dfa5550b73 | 667 | } |
chris | 15:67dfa5550b73 | 668 | } |
chris | 15:67dfa5550b73 | 669 | |
chris | 15:67dfa5550b73 | 670 | zeichen = &font[((c -32) * offset) + 4]; // start of char bitmap |
chris | 15:67dfa5550b73 | 671 | w = zeichen[0]; // width of actual char |
chris | 15:67dfa5550b73 | 672 | // construct the char into the buffer |
chris | 15:67dfa5550b73 | 673 | for (j=0; j<vert; j++) { // vert line |
chris | 15:67dfa5550b73 | 674 | for (i=0; i<hor; i++) { // horz line |
chris | 15:67dfa5550b73 | 675 | z = zeichen[bpl * i + ((j & 0xF8) >> 3)+1]; |
chris | 15:67dfa5550b73 | 676 | b = 1 << (j & 0x07); |
chris | 15:67dfa5550b73 | 677 | if (( z & b ) == 0x00) { |
chris | 15:67dfa5550b73 | 678 | pixel(x+i,y+j,0); |
chris | 15:67dfa5550b73 | 679 | } else { |
chris | 15:67dfa5550b73 | 680 | pixel(x+i,y+j,1); |
chris | 15:67dfa5550b73 | 681 | } |
chris | 15:67dfa5550b73 | 682 | |
chris | 15:67dfa5550b73 | 683 | } |
chris | 15:67dfa5550b73 | 684 | } |
chris | 15:67dfa5550b73 | 685 | |
chris | 15:67dfa5550b73 | 686 | char_x += w; |
chris | 15:67dfa5550b73 | 687 | } |
chris | 15:67dfa5550b73 | 688 | |
chris | 15:67dfa5550b73 | 689 | |
chris | 16:7de323fa46fe | 690 | void C12832::set_font(unsigned char* f) |
chris | 15:67dfa5550b73 | 691 | { |
chris | 15:67dfa5550b73 | 692 | font = f; |
chris | 15:67dfa5550b73 | 693 | } |
chris | 15:67dfa5550b73 | 694 | |
chris | 16:7de323fa46fe | 695 | void C12832::set_auto_up(unsigned int up) |
chris | 15:67dfa5550b73 | 696 | { |
chris | 15:67dfa5550b73 | 697 | if(up ) auto_up = 1; |
chris | 15:67dfa5550b73 | 698 | else auto_up = 0; |
chris | 15:67dfa5550b73 | 699 | } |
chris | 15:67dfa5550b73 | 700 | |
chris | 16:7de323fa46fe | 701 | unsigned int C12832::get_auto_up(void) |
chris | 15:67dfa5550b73 | 702 | { |
chris | 15:67dfa5550b73 | 703 | return (auto_up); |
chris | 15:67dfa5550b73 | 704 | } |
chris | 15:67dfa5550b73 | 705 | |
chris | 16:7de323fa46fe | 706 | void C12832::print_bm(Bitmap bm, int x, int y) |
chris | 15:67dfa5550b73 | 707 | { |
chris | 15:67dfa5550b73 | 708 | int h,v,b; |
chris | 15:67dfa5550b73 | 709 | char d; |
chris | 15:67dfa5550b73 | 710 | |
chris | 15:67dfa5550b73 | 711 | for(v=0; v < bm.ySize; v++) { // lines |
chris | 15:67dfa5550b73 | 712 | for(h=0; h < bm.xSize; h++) { // pixel |
chris | 15:67dfa5550b73 | 713 | if(h + x > 127) break; |
chris | 15:67dfa5550b73 | 714 | if(v + y > 31) break; |
chris | 15:67dfa5550b73 | 715 | d = bm.data[bm.Byte_in_Line * v + ((h & 0xF8) >> 3)]; |
chris | 15:67dfa5550b73 | 716 | b = 0x80 >> (h & 0x07); |
chris | 15:67dfa5550b73 | 717 | if((d & b) == 0) { |
chris | 15:67dfa5550b73 | 718 | pixel(x+h,y+v,0); |
chris | 15:67dfa5550b73 | 719 | } else { |
chris | 15:67dfa5550b73 | 720 | pixel(x+h,y+v,1); |
chris | 15:67dfa5550b73 | 721 | } |
chris | 15:67dfa5550b73 | 722 | } |
chris | 15:67dfa5550b73 | 723 | } |
chris | 15:67dfa5550b73 | 724 | |
chris | 15:67dfa5550b73 | 725 | } |
chris | 15:67dfa5550b73 | 726 | |
chris | 15:67dfa5550b73 | 727 |