Karl Zweimüller / UniGraphic

UniGraphic-Fork for ST7920-LCD-controller and SH1106. Tested with 128x64 LCD with SPI and 128x64-OLED with IIC

Dependents:   UniGraphic-St7920-Test AfficheurUTILECO

Fork of UniGraphic by GraphicsDisplay

Fork of the UniGraphic-Library for monochrome LCDs with ST7920 controller and 128x64-IIC-OLED-Display with SH1106-Controller

/media/uploads/charly/20170522_210344.jpg

/media/uploads/charly/20180425_230623.jpg

Had to adapt LCD for following reasons:

  • Give access to screenbuffer buffer[] to parent class
  • pixel() and pixel_read() as they are hardware-dependent
  • added reset-pin to IIC-Interface

GraphicDisplay:: sends buffer to LCD when auto_update is set to true.

Testprogram for ST7920 can be found here:

https://developer.mbed.org/users/charly/code/UniGraphic-St7920-Test/

Display/LCD.cpp@35:b8d3f1e68000, 2017-05-21 (annotated)

Committer:
charly
Date:
Sun May 21 20:50:09 2017 +0000
Revision:
35:b8d3f1e68000
Parent:
34:a9648877491f
Child:
36:668396f861d2
buitify

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Geremia 4:12ba0ecc2c1f 1 /* mbed UniGraphic library - universal LCD driver class
Geremia 4:12ba0ecc2c1f 2 * Copyright (c) 2015 Giuliano Dianda
Geremia 4:12ba0ecc2c1f 3 * Released under the MIT License: http://mbed.org/license/mit
Geremia 4:12ba0ecc2c1f 4 *
Geremia 4:12ba0ecc2c1f 5 * Derived work of:
Geremia 4:12ba0ecc2c1f 6 *
Geremia 4:12ba0ecc2c1f 7 * mbed library for the mbed Lab Board 128*32 pixel LCD
Geremia 3:48f3282c2be8 8 * use C12832 controller
Geremia 3:48f3282c2be8 9 * Copyright (c) 2012 Peter Drescher - DC2PD
Geremia 3:48f3282c2be8 10 * Released under the MIT License: http://mbed.org/license/mit
Geremia 3:48f3282c2be8 11 *
Geremia 3:48f3282c2be8 12 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
Geremia 3:48f3282c2be8 13 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
Geremia 3:48f3282c2be8 14 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
Geremia 3:48f3282c2be8 15 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
Geremia 3:48f3282c2be8 16 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
Geremia 3:48f3282c2be8 17 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
Geremia 3:48f3282c2be8 18 * THE SOFTWARE.
Geremia 3:48f3282c2be8 19 */
dreschpe 27:acb2594b8aa4 20 #include "platform.h"
dreschpe 27:acb2594b8aa4 21 #include "LCD.h"
Geremia 3:48f3282c2be8 22
dreschpe 27:acb2594b8aa4 23 #if DEVICE_PORTINOUT
dreschpe 27:acb2594b8aa4 24 #include "PAR8.h"
dreschpe 27:acb2594b8aa4 25 #include "PAR16.h"
dreschpe 27:acb2594b8aa4 26 #endif
Geremia 0:75ec1b3cde17 27
Geremia 0:75ec1b3cde17 28 //#include "mbed_debug.h"
Geremia 7:bb0383b91104 29
Geremia 0:75ec1b3cde17 30 #define SWAP(a, b) { a ^= b; b ^= a; a ^= b; }
Geremia 2:713844a55c4e 31
dreschpe 27:acb2594b8aa4 32 #if DEVICE_PORTINOUT
Geremia 0:75ec1b3cde17 33 LCD::LCD(proto_t displayproto, PortName port, PinName CS, PinName reset, PinName DC, PinName WR, PinName RD, const int lcdsize_x, const int lcdsize_y, const int ic_x_segs, const int ic_y_coms, const char *name)
Geremia 7:bb0383b91104 34 : GraphicsDisplay(name), screensize_X(lcdsize_x), screensize_Y(lcdsize_y), _LCDPAGES(lcdsize_y>>3), _IC_X_SEGS(ic_x_segs), _IC_Y_COMS(ic_y_coms), _IC_PAGES(ic_y_coms>>3)
Geremia 0:75ec1b3cde17 35 {
dreschpe 27:acb2594b8aa4 36 if(displayproto==PAR_8) proto = new PAR8(port, CS, reset, DC, WR, RD);
Geremia 1:ff019d22b275 37 useNOP=false;
Geremia 7:bb0383b91104 38 buffer = (unsigned char*) malloc (screensize_X*_LCDPAGES);
Geremia 1:ff019d22b275 39 buffer16 = (unsigned short*)buffer;
Geremia 0:75ec1b3cde17 40 draw_mode = NORMAL;
Geremia 0:75ec1b3cde17 41 set_orientation(1);
Geremia 4:12ba0ecc2c1f 42 foreground(White);
Geremia 4:12ba0ecc2c1f 43 background(Black);
Geremia 2:713844a55c4e 44 set_auto_up(true);
Geremia 7:bb0383b91104 45 tftID=0;
Geremia 0:75ec1b3cde17 46 // cls();
Geremia 0:75ec1b3cde17 47 // locate(0,0);
Geremia 0:75ec1b3cde17 48 }
dreschpe 27:acb2594b8aa4 49 #endif
dreschpe 27:acb2594b8aa4 50
Geremia 21:ae0a4eedfc90 51 LCD::LCD(proto_t displayproto, PinName* buspins, PinName CS, PinName reset, PinName DC, PinName WR, PinName RD, const int lcdsize_x, const int lcdsize_y, const int ic_x_segs, const int ic_y_coms, const char *name)
Geremia 21:ae0a4eedfc90 52 : GraphicsDisplay(name), screensize_X(lcdsize_x), screensize_Y(lcdsize_y), _LCDPAGES(lcdsize_y>>3), _IC_X_SEGS(ic_x_segs), _IC_Y_COMS(ic_y_coms), _IC_PAGES(ic_y_coms>>3)
Geremia 21:ae0a4eedfc90 53 {
Geremia 21:ae0a4eedfc90 54 if(displayproto==BUS_8)
Geremia 21:ae0a4eedfc90 55 {
Geremia 21:ae0a4eedfc90 56 PinName pins[16];
Geremia 21:ae0a4eedfc90 57 for(int i=0; i<16; i++) pins[i]=NC;
Geremia 21:ae0a4eedfc90 58 for(int i=0; i<8; i++) pins[i]=buspins[i];
Geremia 21:ae0a4eedfc90 59 proto = new BUS8(pins, CS, reset, DC, WR, RD);
Geremia 21:ae0a4eedfc90 60 }
Geremia 21:ae0a4eedfc90 61 useNOP=false;
Geremia 21:ae0a4eedfc90 62 buffer = (unsigned char*) malloc (screensize_X*_LCDPAGES);
Geremia 21:ae0a4eedfc90 63 buffer16 = (unsigned short*)buffer;
Geremia 21:ae0a4eedfc90 64 draw_mode = NORMAL;
Geremia 21:ae0a4eedfc90 65 set_orientation(1);
Geremia 21:ae0a4eedfc90 66 foreground(White);
Geremia 21:ae0a4eedfc90 67 background(Black);
Geremia 21:ae0a4eedfc90 68 set_auto_up(true);
Geremia 21:ae0a4eedfc90 69 tftID=0;
Geremia 21:ae0a4eedfc90 70 // cls();
Geremia 21:ae0a4eedfc90 71 // locate(0,0);
Geremia 21:ae0a4eedfc90 72 }
Geremia 1:ff019d22b275 73 LCD::LCD(proto_t displayproto, int Hz, PinName mosi, PinName miso, PinName sclk, PinName CS, PinName reset, PinName DC, const int lcdsize_x, const int lcdsize_y, const int ic_x_segs, const int ic_y_coms, const char *name)
Geremia 7:bb0383b91104 74 : GraphicsDisplay(name), screensize_X(lcdsize_x), screensize_Y(lcdsize_y), _LCDPAGES(lcdsize_y>>3), _IC_X_SEGS(ic_x_segs), _IC_Y_COMS(ic_y_coms), _IC_PAGES(ic_y_coms>>3)
Geremia 0:75ec1b3cde17 75 {
Geremia 1:ff019d22b275 76 if(displayproto==SPI_8)
Geremia 1:ff019d22b275 77 {
Geremia 1:ff019d22b275 78 proto = new SPI8(Hz, mosi, miso, sclk, CS, reset, DC);
Geremia 1:ff019d22b275 79 useNOP=false;
Geremia 1:ff019d22b275 80 }
Geremia 1:ff019d22b275 81 else if(displayproto==SPI_16)
Geremia 1:ff019d22b275 82 {
Geremia 1:ff019d22b275 83 proto = new SPI16(Hz, mosi, miso, sclk, CS, reset, DC);
Geremia 1:ff019d22b275 84 useNOP=true;
Geremia 1:ff019d22b275 85 }
Geremia 7:bb0383b91104 86 buffer = (unsigned char*) malloc (screensize_X*_LCDPAGES);
Geremia 1:ff019d22b275 87 buffer16 = (unsigned short*)buffer;
Geremia 0:75ec1b3cde17 88 draw_mode = NORMAL;
Geremia 0:75ec1b3cde17 89 // cls();
Geremia 0:75ec1b3cde17 90 set_orientation(1);
Geremia 4:12ba0ecc2c1f 91 foreground(White);
Geremia 4:12ba0ecc2c1f 92 background(Black);
Geremia 2:713844a55c4e 93 set_auto_up(true);
Geremia 7:bb0383b91104 94 tftID=0;
Geremia 0:75ec1b3cde17 95 // locate(0,0);
Geremia 0:75ec1b3cde17 96 }
dreschpe 33:f87f06292637 97 LCD::LCD(proto_t displayproto, int Hz, int address, PinName sda, PinName scl, const int lcdsize_x, const int lcdsize_y, const int ic_x_segs, const int ic_y_coms, const char* name)
dreschpe 33:f87f06292637 98 : GraphicsDisplay(name), screensize_X(lcdsize_x), screensize_Y(lcdsize_y), _LCDPAGES(lcdsize_y>>3), _IC_X_SEGS(ic_x_segs), _IC_Y_COMS(ic_y_coms), _IC_PAGES(ic_y_coms>>3)
dreschpe 33:f87f06292637 99 {
dreschpe 33:f87f06292637 100 if(displayproto==I2C_){
dreschpe 33:f87f06292637 101 proto = new I2C_bus(Hz,address,sda,scl);
dreschpe 33:f87f06292637 102 useNOP=false;
dreschpe 33:f87f06292637 103 }
dreschpe 33:f87f06292637 104 buffer = (unsigned char*) malloc (screensize_X*_LCDPAGES);
dreschpe 33:f87f06292637 105 buffer16 = (unsigned short*)buffer;
dreschpe 33:f87f06292637 106 draw_mode = NORMAL;
dreschpe 33:f87f06292637 107 // cls();
dreschpe 33:f87f06292637 108 set_orientation(1);
dreschpe 33:f87f06292637 109 foreground(White);
dreschpe 33:f87f06292637 110 background(Black);
dreschpe 33:f87f06292637 111 set_auto_up(true);
dreschpe 33:f87f06292637 112 tftID=0;
dreschpe 33:f87f06292637 113 }
dreschpe 33:f87f06292637 114
Geremia 0:75ec1b3cde17 115 LCD::~LCD()
Geremia 0:75ec1b3cde17 116 {
Geremia 0:75ec1b3cde17 117 free(buffer);
Geremia 0:75ec1b3cde17 118 }
Geremia 0:75ec1b3cde17 119
Geremia 1:ff019d22b275 120 void LCD::wr_cmd8(unsigned char cmd)
Geremia 0:75ec1b3cde17 121 {
Geremia 2:713844a55c4e 122 if(useNOP) proto->wr_cmd16(0xE300|cmd); // E3 is NOP cmd for LCD
Geremia 1:ff019d22b275 123 else proto->wr_cmd8(cmd);
Geremia 0:75ec1b3cde17 124 }
Geremia 1:ff019d22b275 125 void LCD::wr_data8(unsigned char data)
Geremia 0:75ec1b3cde17 126 {
Geremia 1:ff019d22b275 127 proto->wr_data8(data);
Geremia 1:ff019d22b275 128 }
Geremia 1:ff019d22b275 129 void LCD::wr_cmd16(unsigned short cmd)
Geremia 1:ff019d22b275 130 {
Geremia 1:ff019d22b275 131 proto->wr_cmd16(cmd);
Geremia 0:75ec1b3cde17 132 }
Geremia 4:12ba0ecc2c1f 133 void LCD::wr_gram(unsigned short data, unsigned int count)
Geremia 0:75ec1b3cde17 134 {
Geremia 4:12ba0ecc2c1f 135 proto->wr_gram(data, count);
Geremia 1:ff019d22b275 136 }
Geremia 4:12ba0ecc2c1f 137 void LCD::wr_grambuf(unsigned short* data, unsigned int lenght)
Geremia 1:ff019d22b275 138 {
Geremia 4:12ba0ecc2c1f 139 proto->wr_grambuf(data, lenght);
Geremia 0:75ec1b3cde17 140 }
Geremia 0:75ec1b3cde17 141 void LCD::hw_reset()
Geremia 0:75ec1b3cde17 142 {
Geremia 0:75ec1b3cde17 143 proto->hw_reset();
Geremia 0:75ec1b3cde17 144 }
Geremia 0:75ec1b3cde17 145 void LCD::BusEnable(bool enable)
Geremia 0:75ec1b3cde17 146 {
Geremia 0:75ec1b3cde17 147 proto->BusEnable(enable);
Geremia 0:75ec1b3cde17 148 }
Geremia 0:75ec1b3cde17 149
Geremia 0:75ec1b3cde17 150
Geremia 0:75ec1b3cde17 151
Geremia 0:75ec1b3cde17 152 // monochrome LCD driver ICs does not have ram rotate in hw (swap raw<->columns) like TFT displays
Geremia 0:75ec1b3cde17 153 // for portrait views, XY swap will be done in sw in pixel() function
Geremia 0:75ec1b3cde17 154 void LCD::set_orientation(int o)
Geremia 0:75ec1b3cde17 155 {
Geremia 0:75ec1b3cde17 156 orientation = o;
Geremia 0:75ec1b3cde17 157 switch (o) {
Geremia 0:75ec1b3cde17 158 case (0):// portrait view -90°
Geremia 0:75ec1b3cde17 159 mirrorXY(Y);
Geremia 0:75ec1b3cde17 160 col_offset = 0;
Geremia 7:bb0383b91104 161 page_offset = _IC_PAGES-_LCDPAGES;
Geremia 7:bb0383b91104 162 set_width(screensize_Y);
Geremia 7:bb0383b91104 163 set_height(screensize_X);
Geremia 0:75ec1b3cde17 164 // portrait = true;
Geremia 0:75ec1b3cde17 165 break;
Geremia 0:75ec1b3cde17 166 case (1): // default, landscape view 0°
Geremia 0:75ec1b3cde17 167 mirrorXY(NONE);
Geremia 0:75ec1b3cde17 168 col_offset = 0;
Geremia 0:75ec1b3cde17 169 page_offset = 0;
Geremia 7:bb0383b91104 170 set_width(screensize_X);
Geremia 7:bb0383b91104 171 set_height(screensize_Y);
Geremia 0:75ec1b3cde17 172 // portrait = false;
Geremia 0:75ec1b3cde17 173 break;
Geremia 0:75ec1b3cde17 174 case (2):// portrait view +90°
Geremia 0:75ec1b3cde17 175 mirrorXY(X);
Geremia 7:bb0383b91104 176 col_offset = _IC_X_SEGS-screensize_X; // some displays have less pixels than IC ram
Geremia 0:75ec1b3cde17 177 page_offset = 0;
Geremia 7:bb0383b91104 178 set_width(screensize_Y);
Geremia 7:bb0383b91104 179 set_height(screensize_X);
Geremia 0:75ec1b3cde17 180 // portrait = true;
Geremia 0:75ec1b3cde17 181 break;
Geremia 0:75ec1b3cde17 182 case (3):// landscape view +180°
Geremia 0:75ec1b3cde17 183 mirrorXY(XY);
Geremia 7:bb0383b91104 184 col_offset = _IC_X_SEGS-screensize_X;
Geremia 7:bb0383b91104 185 page_offset = _IC_PAGES-_LCDPAGES;
Geremia 7:bb0383b91104 186 set_width(screensize_X);
Geremia 7:bb0383b91104 187 set_height(screensize_Y);
Geremia 0:75ec1b3cde17 188 // portrait = false;
Geremia 0:75ec1b3cde17 189 break;
Geremia 0:75ec1b3cde17 190 }
Geremia 0:75ec1b3cde17 191 }
Geremia 0:75ec1b3cde17 192 void LCD::mirrorXY(mirror_t mode)
Geremia 0:75ec1b3cde17 193 {
Geremia 0:75ec1b3cde17 194 switch (mode)
Geremia 0:75ec1b3cde17 195 {
Geremia 0:75ec1b3cde17 196 case(NONE):
Geremia 1:ff019d22b275 197 // wr_cmd8(0xA0);
Geremia 1:ff019d22b275 198 wr_cmd16(0xA0C8); // this is in real Y mirror command, but seems most displays have COMs wired inverted, so assume this is the default no-y-mirror
Geremia 0:75ec1b3cde17 199 break;
Geremia 0:75ec1b3cde17 200 case(X):
Geremia 1:ff019d22b275 201 // wr_cmd8(0xA1);
Geremia 1:ff019d22b275 202 wr_cmd16(0xA1C8);
Geremia 0:75ec1b3cde17 203 break;
Geremia 0:75ec1b3cde17 204 case(Y):
Geremia 1:ff019d22b275 205 // wr_cmd8(0xA0);
Geremia 1:ff019d22b275 206 wr_cmd16(0xA0C0);
Geremia 0:75ec1b3cde17 207 break;
Geremia 0:75ec1b3cde17 208 case(XY):
Geremia 1:ff019d22b275 209 // wr_cmd8(0xA1);
Geremia 1:ff019d22b275 210 wr_cmd16(0xA1C0);
Geremia 0:75ec1b3cde17 211 break;
Geremia 0:75ec1b3cde17 212 }
Geremia 0:75ec1b3cde17 213 }
Geremia 0:75ec1b3cde17 214 void LCD::invert(unsigned char o)
Geremia 0:75ec1b3cde17 215 {
Geremia 1:ff019d22b275 216 if(o == 0) wr_cmd8(0xA6);
Geremia 1:ff019d22b275 217 else wr_cmd8(0xA7);
Geremia 0:75ec1b3cde17 218 }
Geremia 0:75ec1b3cde17 219
Geremia 0:75ec1b3cde17 220 void LCD::set_contrast(int o)
Geremia 0:75ec1b3cde17 221 {
Geremia 0:75ec1b3cde17 222 contrast = o;
Geremia 1:ff019d22b275 223 // wr_cmd8(0x81); // set volume
Geremia 1:ff019d22b275 224 wr_cmd16(0x8100|(o&0x3F));
Geremia 0:75ec1b3cde17 225 }
Geremia 2:713844a55c4e 226
Geremia 0:75ec1b3cde17 227 int LCD::get_contrast(void)
Geremia 0:75ec1b3cde17 228 {
Geremia 0:75ec1b3cde17 229 return(contrast);
Geremia 0:75ec1b3cde17 230 }
Geremia 0:75ec1b3cde17 231 void LCD::window(int x, int y, int w, int h) {
Geremia 0:75ec1b3cde17 232 // current pixel location
Geremia 0:75ec1b3cde17 233 cur_x = x;
Geremia 0:75ec1b3cde17 234 cur_y = y;
Geremia 0:75ec1b3cde17 235 // window settings
Geremia 0:75ec1b3cde17 236 win_x1 = x;
Geremia 0:75ec1b3cde17 237 win_x2 = x + w - 1;
Geremia 0:75ec1b3cde17 238 win_y1 = y;
Geremia 0:75ec1b3cde17 239 win_y2 = y + h - 1;
Geremia 0:75ec1b3cde17 240 }
Geremia 0:75ec1b3cde17 241 void LCD::window_pushpixel(unsigned short color) {
Geremia 0:75ec1b3cde17 242 pixel(cur_x, cur_y, color);
Geremia 0:75ec1b3cde17 243 cur_x++;
Geremia 0:75ec1b3cde17 244 if(cur_x > win_x2) {
Geremia 0:75ec1b3cde17 245 cur_x = win_x1;
Geremia 0:75ec1b3cde17 246 cur_y++;
Geremia 0:75ec1b3cde17 247 if(cur_y > win_y2) {
Geremia 0:75ec1b3cde17 248 cur_y = win_y1;
Geremia 0:75ec1b3cde17 249 }
Geremia 0:75ec1b3cde17 250 }
Geremia 0:75ec1b3cde17 251 }
Geremia 2:713844a55c4e 252 void LCD::window_pushpixel(unsigned short color, unsigned int count) {
Geremia 2:713844a55c4e 253 while(count)
Geremia 2:713844a55c4e 254 {
Geremia 2:713844a55c4e 255 pixel(cur_x, cur_y, color);
Geremia 2:713844a55c4e 256 cur_x++;
Geremia 2:713844a55c4e 257 if(cur_x > win_x2)
Geremia 2:713844a55c4e 258 {
Geremia 2:713844a55c4e 259 cur_x = win_x1;
Geremia 2:713844a55c4e 260 cur_y++;
Geremia 2:713844a55c4e 261 if(cur_y > win_y2)
Geremia 2:713844a55c4e 262 {
Geremia 2:713844a55c4e 263 cur_y = win_y1;
Geremia 2:713844a55c4e 264 }
Geremia 2:713844a55c4e 265 }
Geremia 2:713844a55c4e 266 count--;
Geremia 2:713844a55c4e 267 }
Geremia 2:713844a55c4e 268 }
Geremia 2:713844a55c4e 269 void LCD::window_pushpixelbuf(unsigned short* color, unsigned int lenght) {
Geremia 2:713844a55c4e 270 while(lenght)
Geremia 2:713844a55c4e 271 {
Geremia 2:713844a55c4e 272 pixel(cur_x, cur_y, *color++);
Geremia 2:713844a55c4e 273 cur_x++;
Geremia 2:713844a55c4e 274 if(cur_x > win_x2)
Geremia 2:713844a55c4e 275 {
Geremia 2:713844a55c4e 276 cur_x = win_x1;
Geremia 2:713844a55c4e 277 cur_y++;
Geremia 2:713844a55c4e 278 if(cur_y > win_y2)
Geremia 2:713844a55c4e 279 {
Geremia 2:713844a55c4e 280 cur_y = win_y1;
Geremia 2:713844a55c4e 281 }
Geremia 2:713844a55c4e 282 }
Geremia 2:713844a55c4e 283 lenght--;
Geremia 2:713844a55c4e 284 }
Geremia 2:713844a55c4e 285 }
Geremia 0:75ec1b3cde17 286 void LCD::pixel(int x, int y, unsigned short color)
Geremia 0:75ec1b3cde17 287 {
Geremia 0:75ec1b3cde17 288 if(!(orientation&1)) SWAP(x,y);
Geremia 0:75ec1b3cde17 289 // first check parameter
Geremia 7:bb0383b91104 290 if((x >= screensize_X) || (y >= screensize_Y)) return;
Geremia 0:75ec1b3cde17 291
charly 35:b8d3f1e68000 292
charly 35:b8d3f1e68000 293 if (color) {buffer[(x>>3)+(y*_IC_X_SEGS>>4)]&= ~(1 << (7-(x&7)));}
charly 35:b8d3f1e68000 294 else {buffer[(x>>3)+(y*_IC_X_SEGS>>4)]|= (1 << (7-(x&7)));}
charly 34:a9648877491f 295
charly 34:a9648877491f 296 //buffer[0]=0xFF;
charly 34:a9648877491f 297 //buffer[16]=0xAA;
charly 34:a9648877491f 298 //buffer[1023]=0xFF;
charly 34:a9648877491f 299
Geremia 20:14daa48ffd4c 300 }
Geremia 20:14daa48ffd4c 301 unsigned short LCD::pixelread(int x, int y)
Geremia 20:14daa48ffd4c 302 {
Geremia 20:14daa48ffd4c 303 if(!(orientation&1)) SWAP(x,y);
Geremia 20:14daa48ffd4c 304 // first check parameter
Geremia 20:14daa48ffd4c 305 if((x >= screensize_X) || (y >= screensize_Y)) return 0;
Geremia 20:14daa48ffd4c 306
charly 35:b8d3f1e68000 307
charly 35:b8d3f1e68000 308 if((buffer[(x>>3)+(y*_IC_X_SEGS>>4)] & (1 << (7-(x&7))))==0) return 0xFFFF ; // pixel not set, White
Geremia 20:14daa48ffd4c 309 else return 0; // pixel set, Black
Geremia 0:75ec1b3cde17 310 }
Geremia 0:75ec1b3cde17 311 void LCD::copy_to_lcd(void)
Geremia 0:75ec1b3cde17 312 {
Geremia 0:75ec1b3cde17 313 unsigned short i=0;
Geremia 1:ff019d22b275 314 unsigned short setcolcmd = 0x0010 | ((col_offset&0xF)<<8) | (col_offset>>4);
Geremia 7:bb0383b91104 315 for(int page=0; page<_LCDPAGES; page++)
Geremia 0:75ec1b3cde17 316 {
Geremia 1:ff019d22b275 317 // wr_cmd8(col_offset&0xF); // set column low nibble
Geremia 1:ff019d22b275 318 // wr_cmd8(0x10|(col_offset>>4)); // set column hi nibble
Geremia 1:ff019d22b275 319 wr_cmd16(setcolcmd);
Geremia 1:ff019d22b275 320 wr_cmd8(0xB0|(page+page_offset)); // set page
Geremia 7:bb0383b91104 321 wr_grambuf(buffer16+i, screensize_X>>1); // send whole page pixels
Geremia 7:bb0383b91104 322 i+=screensize_X>>1;
Geremia 0:75ec1b3cde17 323 }
Geremia 0:75ec1b3cde17 324 }
Geremia 0:75ec1b3cde17 325 void LCD::cls(void)
Geremia 0:75ec1b3cde17 326 {
Geremia 4:12ba0ecc2c1f 327 unsigned short tmp = _background^0xFFFF;
Geremia 7:bb0383b91104 328 memset(buffer,tmp,screensize_X*_LCDPAGES); // clear display buffer
Geremia 1:ff019d22b275 329 unsigned short setcolcmd = 0x0010 | ((col_offset&0xF)<<8) | (col_offset>>4);
Geremia 7:bb0383b91104 330 for(int page=0; page<_LCDPAGES; page++)
Geremia 0:75ec1b3cde17 331 {
Geremia 1:ff019d22b275 332 // wr_cmd8((unsigned char)col_offset&0xF); // set column low nibble
Geremia 1:ff019d22b275 333 // wr_cmd8(0x10|(col_offset>>4)); // set column hi nibble
Geremia 1:ff019d22b275 334 wr_cmd16(setcolcmd);
Geremia 1:ff019d22b275 335 wr_cmd8(0xB0|(page+page_offset)); // set page
Geremia 18:ffa58f1a680a 336 wr_gram(tmp, screensize_X>>1); // send whole page pixels = background
Geremia 0:75ec1b3cde17 337 }
Geremia 7:bb0383b91104 338 }
Geremia 7:bb0383b91104 339 int LCD::sizeX()
Geremia 7:bb0383b91104 340 {
Geremia 7:bb0383b91104 341 return screensize_X;
Geremia 7:bb0383b91104 342 }
Geremia 7:bb0383b91104 343 int LCD::sizeY()
Geremia 7:bb0383b91104 344 {
Geremia 7:bb0383b91104 345 return screensize_Y;
Geremia 0:75ec1b3cde17 346 }