Stepan Smejkal / SPI_TFT_ILI9341

Lib for the new LCD Display with ILI9341 controller

SPI_TFT_ILI9341.cpp@4:f018e272220b, 2013-10-18 (annotated)

Committer:
dreschpe
Date:
Fri Oct 18 09:04:42 2013 +0000
Revision:
4:f018e272220b
Parent:
3:3d7298360e45
Child:
5:55aed13f2630
remove old circle code

Who changed what in which revision?

UserRevisionLine numberNew contents of line
dreschpe 0:da1bf437cbc1 1 /* mbed library for 240*320 pixel display TFT based on ILI9341 LCD Controller
dreschpe 0:da1bf437cbc1 2 * Copyright (c) 2013 Peter Drescher - DC2PD
dreschpe 0:da1bf437cbc1 3 *
dreschpe 0:da1bf437cbc1 4 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
dreschpe 0:da1bf437cbc1 5 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
dreschpe 0:da1bf437cbc1 6 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
dreschpe 0:da1bf437cbc1 7 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
dreschpe 0:da1bf437cbc1 8 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
dreschpe 0:da1bf437cbc1 9 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
dreschpe 0:da1bf437cbc1 10 * THE SOFTWARE.
dreschpe 0:da1bf437cbc1 11 */
dreschpe 0:da1bf437cbc1 12
dreschpe 0:da1bf437cbc1 13 // 12.06.13 fork from SPI_TFT code because controller is different ...
dreschpe 2:0a16083193a4 14 // 14.07.13 Test with real display and bugfix
dreschpe 4:f018e272220b 15 // 18.10.13 Better Circle function from Michael Ammann
dreschpe 0:da1bf437cbc1 16
dreschpe 0:da1bf437cbc1 17 #include "SPI_TFT_ILI9341.h"
dreschpe 0:da1bf437cbc1 18 #include "mbed.h"
dreschpe 0:da1bf437cbc1 19
dreschpe 0:da1bf437cbc1 20 #define BPP 16 // Bits per pixel
dreschpe 0:da1bf437cbc1 21
dreschpe 0:da1bf437cbc1 22
dreschpe 0:da1bf437cbc1 23 //extern Serial pc;
dreschpe 0:da1bf437cbc1 24 //extern DigitalOut xx; // debug !!
dreschpe 0:da1bf437cbc1 25
dreschpe 0:da1bf437cbc1 26 SPI_TFT_ILI9341::SPI_TFT_ILI9341(PinName mosi, PinName miso, PinName sclk, PinName cs, PinName reset, PinName dc, const char *name)
dreschpe 0:da1bf437cbc1 27 : _spi(mosi, miso, sclk), _cs(cs), _reset(reset), _dc(dc), GraphicsDisplay(name)
dreschpe 0:da1bf437cbc1 28 {
dreschpe 0:da1bf437cbc1 29 orientation = 0;
dreschpe 0:da1bf437cbc1 30 char_x = 0;
dreschpe 0:da1bf437cbc1 31 tft_reset();
dreschpe 0:da1bf437cbc1 32 }
dreschpe 0:da1bf437cbc1 33
dreschpe 0:da1bf437cbc1 34 int SPI_TFT_ILI9341::width()
dreschpe 0:da1bf437cbc1 35 {
dreschpe 0:da1bf437cbc1 36 if (orientation == 0 || orientation == 2) return 240;
dreschpe 0:da1bf437cbc1 37 else return 320;
dreschpe 0:da1bf437cbc1 38 }
dreschpe 0:da1bf437cbc1 39
dreschpe 0:da1bf437cbc1 40
dreschpe 0:da1bf437cbc1 41 int SPI_TFT_ILI9341::height()
dreschpe 0:da1bf437cbc1 42 {
dreschpe 0:da1bf437cbc1 43 if (orientation == 0 || orientation == 2) return 320;
dreschpe 0:da1bf437cbc1 44 else return 240;
dreschpe 0:da1bf437cbc1 45 }
dreschpe 0:da1bf437cbc1 46
dreschpe 0:da1bf437cbc1 47
dreschpe 2:0a16083193a4 48 void SPI_TFT_ILI9341::set_orientation(unsigned int o)
dreschpe 0:da1bf437cbc1 49 {
dreschpe 0:da1bf437cbc1 50 orientation = o;
dreschpe 2:0a16083193a4 51 wr_cmd(0x36); // MEMORY_ACCESS_CONTROL
dreschpe 0:da1bf437cbc1 52 switch (orientation) {
dreschpe 0:da1bf437cbc1 53 case 0:
dreschpe 2:0a16083193a4 54 _spi.write(0x48);
dreschpe 0:da1bf437cbc1 55 break;
dreschpe 0:da1bf437cbc1 56 case 1:
dreschpe 2:0a16083193a4 57 _spi.write(0x28);
dreschpe 0:da1bf437cbc1 58 break;
dreschpe 0:da1bf437cbc1 59 case 2:
dreschpe 2:0a16083193a4 60 _spi.write(0x88);
dreschpe 0:da1bf437cbc1 61 break;
dreschpe 0:da1bf437cbc1 62 case 3:
dreschpe 2:0a16083193a4 63 _spi.write(0xE8);
dreschpe 0:da1bf437cbc1 64 break;
dreschpe 0:da1bf437cbc1 65 }
dreschpe 2:0a16083193a4 66 _cs = 1;
dreschpe 0:da1bf437cbc1 67 WindowMax();
dreschpe 2:0a16083193a4 68 }
dreschpe 0:da1bf437cbc1 69
dreschpe 0:da1bf437cbc1 70
dreschpe 0:da1bf437cbc1 71 // write command to tft register
dreschpe 0:da1bf437cbc1 72
dreschpe 0:da1bf437cbc1 73 void SPI_TFT_ILI9341::wr_cmd(unsigned char cmd)
dreschpe 0:da1bf437cbc1 74 {
dreschpe 0:da1bf437cbc1 75 _dc = 0;
dreschpe 0:da1bf437cbc1 76 _cs = 0;
dreschpe 0:da1bf437cbc1 77 _spi.write(cmd); // mbed lib
dreschpe 0:da1bf437cbc1 78 _dc = 1;
dreschpe 0:da1bf437cbc1 79 }
dreschpe 0:da1bf437cbc1 80
dreschpe 0:da1bf437cbc1 81
dreschpe 0:da1bf437cbc1 82
dreschpe 0:da1bf437cbc1 83 void SPI_TFT_ILI9341::wr_dat(unsigned char dat)
dreschpe 0:da1bf437cbc1 84 {
dreschpe 0:da1bf437cbc1 85 _spi.write(dat); // mbed lib
dreschpe 0:da1bf437cbc1 86 }
dreschpe 0:da1bf437cbc1 87
dreschpe 0:da1bf437cbc1 88
dreschpe 0:da1bf437cbc1 89
dreschpe 0:da1bf437cbc1 90 // the ILI9341 can read - has to be implemented later
dreschpe 0:da1bf437cbc1 91 // A read will return 0 at the moment
dreschpe 0:da1bf437cbc1 92
dreschpe 0:da1bf437cbc1 93 //unsigned short SPI_TFT_ILI9341::rd_dat (void)
dreschpe 0:da1bf437cbc1 94 //{
dreschpe 0:da1bf437cbc1 95 // unsigned short val = 0;
dreschpe 0:da1bf437cbc1 96
dreschpe 0:da1bf437cbc1 97 //val = _spi.write(0x73ff); /* Dummy read 1 */
dreschpe 0:da1bf437cbc1 98 //val = _spi.write(0x0000); /* Read D8..D15 */
dreschpe 0:da1bf437cbc1 99 // return (val);
dreschpe 0:da1bf437cbc1 100 //}
dreschpe 0:da1bf437cbc1 101
dreschpe 0:da1bf437cbc1 102
dreschpe 0:da1bf437cbc1 103
dreschpe 1:6d6125e88de7 104 // Init code based on MI0283QT datasheet
dreschpe 1:6d6125e88de7 105
dreschpe 0:da1bf437cbc1 106 void SPI_TFT_ILI9341::tft_reset()
dreschpe 0:da1bf437cbc1 107 {
dreschpe 2:0a16083193a4 108 _spi.format(8,3); // 8 bit spi mode 3
dreschpe 1:6d6125e88de7 109 _spi.frequency(10000000); // 10 Mhz SPI clock
dreschpe 0:da1bf437cbc1 110 _cs = 1; // cs high
dreschpe 0:da1bf437cbc1 111 _dc = 1; // dc high
dreschpe 0:da1bf437cbc1 112 _reset = 0; // display reset
dreschpe 0:da1bf437cbc1 113
dreschpe 0:da1bf437cbc1 114 wait_us(50);
dreschpe 1:6d6125e88de7 115 _reset = 1; // end hardware reset
dreschpe 0:da1bf437cbc1 116 wait_ms(5);
dreschpe 1:6d6125e88de7 117
dreschpe 1:6d6125e88de7 118 wr_cmd(0x01); // SW reset
dreschpe 1:6d6125e88de7 119 wait_ms(5);
dreschpe 1:6d6125e88de7 120 wr_cmd(0x28); // display off
dreschpe 0:da1bf437cbc1 121
dreschpe 0:da1bf437cbc1 122 /* Start Initial Sequence ----------------------------------------------------*/
dreschpe 1:6d6125e88de7 123 wr_cmd(0xCF);
dreschpe 1:6d6125e88de7 124 _spi.write(0x00);
dreschpe 1:6d6125e88de7 125 _spi.write(0x83);
dreschpe 1:6d6125e88de7 126 _spi.write(0x30);
dreschpe 1:6d6125e88de7 127 _cs = 1;
dreschpe 1:6d6125e88de7 128
dreschpe 1:6d6125e88de7 129 wr_cmd(0xED);
dreschpe 1:6d6125e88de7 130 _spi.write(0x64);
dreschpe 1:6d6125e88de7 131 _spi.write(0x03);
dreschpe 1:6d6125e88de7 132 _spi.write(0x12);
dreschpe 1:6d6125e88de7 133 _spi.write(0x81);
dreschpe 1:6d6125e88de7 134 _cs = 1;
dreschpe 1:6d6125e88de7 135
dreschpe 1:6d6125e88de7 136 wr_cmd(0xE8);
dreschpe 1:6d6125e88de7 137 _spi.write(0x85);
dreschpe 1:6d6125e88de7 138 _spi.write(0x01);
dreschpe 1:6d6125e88de7 139 _spi.write(0x79);
dreschpe 1:6d6125e88de7 140 _cs = 1;
dreschpe 1:6d6125e88de7 141
dreschpe 1:6d6125e88de7 142 wr_cmd(0xCB);
dreschpe 0:da1bf437cbc1 143 _spi.write(0x39);
dreschpe 0:da1bf437cbc1 144 _spi.write(0x2C);
dreschpe 0:da1bf437cbc1 145 _spi.write(0x00);
dreschpe 0:da1bf437cbc1 146 _spi.write(0x34);
dreschpe 0:da1bf437cbc1 147 _spi.write(0x02);
dreschpe 0:da1bf437cbc1 148 _cs = 1;
dreschpe 1:6d6125e88de7 149
dreschpe 1:6d6125e88de7 150 wr_cmd(0xF7);
dreschpe 1:6d6125e88de7 151 _spi.write(0x20);
dreschpe 0:da1bf437cbc1 152 _cs = 1;
dreschpe 1:6d6125e88de7 153
dreschpe 1:6d6125e88de7 154 wr_cmd(0xEA);
dreschpe 1:6d6125e88de7 155 _spi.write(0x00);
dreschpe 1:6d6125e88de7 156 _spi.write(0x00);
dreschpe 0:da1bf437cbc1 157 _cs = 1;
dreschpe 1:6d6125e88de7 158
dreschpe 0:da1bf437cbc1 159 wr_cmd(0xC0); // POWER_CONTROL_1
dreschpe 1:6d6125e88de7 160 _spi.write(0x26);
dreschpe 0:da1bf437cbc1 161 _cs = 1;
dreschpe 1:6d6125e88de7 162
dreschpe 0:da1bf437cbc1 163 wr_cmd(0xC1); // POWER_CONTROL_2
dreschpe 0:da1bf437cbc1 164 _spi.write(0x11);
dreschpe 0:da1bf437cbc1 165 _cs = 1;
dreschpe 1:6d6125e88de7 166
dreschpe 0:da1bf437cbc1 167 wr_cmd(0xC5); // VCOM_CONTROL_1
dreschpe 1:6d6125e88de7 168 _spi.write(0x35);
dreschpe 1:6d6125e88de7 169 _spi.write(0x3E);
dreschpe 0:da1bf437cbc1 170 _cs = 1;
dreschpe 1:6d6125e88de7 171
dreschpe 0:da1bf437cbc1 172 wr_cmd(0xC7); // VCOM_CONTROL_2
dreschpe 1:6d6125e88de7 173 _spi.write(0xBE);
dreschpe 0:da1bf437cbc1 174 _cs = 1;
dreschpe 1:6d6125e88de7 175
dreschpe 0:da1bf437cbc1 176 wr_cmd(0x36); // MEMORY_ACCESS_CONTROL
dreschpe 0:da1bf437cbc1 177 _spi.write(0x48);
dreschpe 0:da1bf437cbc1 178 _cs = 1;
dreschpe 1:6d6125e88de7 179
dreschpe 1:6d6125e88de7 180 wr_cmd(0x3A); // COLMOD_PIXEL_FORMAT_SET
dreschpe 1:6d6125e88de7 181 _spi.write(0x55); // 16 bit pixel
dreschpe 1:6d6125e88de7 182 _cs = 1;
dreschpe 1:6d6125e88de7 183
dreschpe 1:6d6125e88de7 184 wr_cmd(0xB1); // Frame Rate
dreschpe 1:6d6125e88de7 185 _spi.write(0x00);
dreschpe 1:6d6125e88de7 186 _spi.write(0x1B);
dreschpe 1:6d6125e88de7 187 _cs = 1;
dreschpe 1:6d6125e88de7 188
dreschpe 1:6d6125e88de7 189 wr_cmd(0xF2); // Gamma Function Disable
dreschpe 1:6d6125e88de7 190 _spi.write(0x08);
dreschpe 1:6d6125e88de7 191 _cs = 1;
dreschpe 1:6d6125e88de7 192
dreschpe 1:6d6125e88de7 193 wr_cmd(0x26);
dreschpe 1:6d6125e88de7 194 _spi.write(0x01); // gamma set for curve 01/2/04/08
dreschpe 1:6d6125e88de7 195 _cs = 1;
dreschpe 1:6d6125e88de7 196
dreschpe 1:6d6125e88de7 197 wr_cmd(0xE0); // positive gamma correction
dreschpe 1:6d6125e88de7 198 _spi.write(0x1F);
dreschpe 1:6d6125e88de7 199 _spi.write(0x1A);
dreschpe 1:6d6125e88de7 200 _spi.write(0x18);
dreschpe 1:6d6125e88de7 201 _spi.write(0x0A);
dreschpe 1:6d6125e88de7 202 _spi.write(0x0F);
dreschpe 1:6d6125e88de7 203 _spi.write(0x06);
dreschpe 1:6d6125e88de7 204 _spi.write(0x45);
dreschpe 1:6d6125e88de7 205 _spi.write(0x87);
dreschpe 1:6d6125e88de7 206 _spi.write(0x32);
dreschpe 1:6d6125e88de7 207 _spi.write(0x0A);
dreschpe 1:6d6125e88de7 208 _spi.write(0x07);
dreschpe 1:6d6125e88de7 209 _spi.write(0x02);
dreschpe 1:6d6125e88de7 210 _spi.write(0x07);
dreschpe 1:6d6125e88de7 211 _spi.write(0x05);
dreschpe 1:6d6125e88de7 212 _spi.write(0x00);
dreschpe 1:6d6125e88de7 213 _cs = 1;
dreschpe 1:6d6125e88de7 214
dreschpe 1:6d6125e88de7 215 wr_cmd(0xE1); // negativ gamma correction
dreschpe 1:6d6125e88de7 216 _spi.write(0x00);
dreschpe 1:6d6125e88de7 217 _spi.write(0x25);
dreschpe 1:6d6125e88de7 218 _spi.write(0x27);
dreschpe 1:6d6125e88de7 219 _spi.write(0x05);
dreschpe 1:6d6125e88de7 220 _spi.write(0x10);
dreschpe 1:6d6125e88de7 221 _spi.write(0x09);
dreschpe 1:6d6125e88de7 222 _spi.write(0x3A);
dreschpe 1:6d6125e88de7 223 _spi.write(0x78);
dreschpe 1:6d6125e88de7 224 _spi.write(0x4D);
dreschpe 1:6d6125e88de7 225 _spi.write(0x05);
dreschpe 1:6d6125e88de7 226 _spi.write(0x18);
dreschpe 1:6d6125e88de7 227 _spi.write(0x0D);
dreschpe 1:6d6125e88de7 228 _spi.write(0x38);
dreschpe 1:6d6125e88de7 229 _spi.write(0x3A);
dreschpe 1:6d6125e88de7 230 _spi.write(0x1F);
dreschpe 1:6d6125e88de7 231 _cs = 1;
dreschpe 1:6d6125e88de7 232
dreschpe 1:6d6125e88de7 233 WindowMax ();
dreschpe 1:6d6125e88de7 234
dreschpe 1:6d6125e88de7 235 //wr_cmd(0x34); // tearing effect off
dreschpe 1:6d6125e88de7 236 //_cs = 1;
dreschpe 1:6d6125e88de7 237
dreschpe 1:6d6125e88de7 238 //wr_cmd(0x35); // tearing effect on
dreschpe 1:6d6125e88de7 239 //_cs = 1;
dreschpe 1:6d6125e88de7 240
dreschpe 1:6d6125e88de7 241 wr_cmd(0xB7); // entry mode
dreschpe 1:6d6125e88de7 242 _spi.write(0x07);
dreschpe 1:6d6125e88de7 243 _cs = 1;
dreschpe 1:6d6125e88de7 244
dreschpe 1:6d6125e88de7 245 wr_cmd(0xB6); // display function control
dreschpe 1:6d6125e88de7 246 _spi.write(0x0A);
dreschpe 1:6d6125e88de7 247 _spi.write(0x82);
dreschpe 1:6d6125e88de7 248 _spi.write(0x27);
dreschpe 1:6d6125e88de7 249 _spi.write(0x00);
dreschpe 1:6d6125e88de7 250 _cs = 1;
dreschpe 1:6d6125e88de7 251
dreschpe 1:6d6125e88de7 252 wr_cmd(0x11); // sleep out
dreschpe 1:6d6125e88de7 253 _cs = 1;
dreschpe 1:6d6125e88de7 254
dreschpe 1:6d6125e88de7 255 wait_ms(100);
dreschpe 1:6d6125e88de7 256
dreschpe 1:6d6125e88de7 257 wr_cmd(0x29); // display on
dreschpe 1:6d6125e88de7 258 _cs = 1;
dreschpe 1:6d6125e88de7 259
dreschpe 1:6d6125e88de7 260 wait_ms(100);
dreschpe 1:6d6125e88de7 261
dreschpe 1:6d6125e88de7 262 }
dreschpe 0:da1bf437cbc1 263
dreschpe 0:da1bf437cbc1 264
dreschpe 0:da1bf437cbc1 265 void SPI_TFT_ILI9341::pixel(int x, int y, int color)
dreschpe 0:da1bf437cbc1 266 {
dreschpe 0:da1bf437cbc1 267 wr_cmd(0x2A);
dreschpe 0:da1bf437cbc1 268 _spi.write(x >> 8);
dreschpe 0:da1bf437cbc1 269 _spi.write(x);
dreschpe 0:da1bf437cbc1 270 _cs = 1;
dreschpe 0:da1bf437cbc1 271 wr_cmd(0x2B);
dreschpe 0:da1bf437cbc1 272 _spi.write(y >> 8);
dreschpe 0:da1bf437cbc1 273 _spi.write(y);
dreschpe 0:da1bf437cbc1 274 _cs = 1;
dreschpe 0:da1bf437cbc1 275 wr_cmd(0x2C); // send pixel
dreschpe 0:da1bf437cbc1 276 _spi.format(16,3); // switch to 16 bit Mode 3
dreschpe 0:da1bf437cbc1 277 _spi.write(color); // Write D0..D15
dreschpe 0:da1bf437cbc1 278 _spi.format(8,3);
dreschpe 0:da1bf437cbc1 279 _cs = 1;
dreschpe 0:da1bf437cbc1 280 }
dreschpe 0:da1bf437cbc1 281
dreschpe 0:da1bf437cbc1 282
dreschpe 0:da1bf437cbc1 283 void SPI_TFT_ILI9341::window (unsigned int x, unsigned int y, unsigned int w, unsigned int h)
dreschpe 0:da1bf437cbc1 284 {
dreschpe 0:da1bf437cbc1 285 wr_cmd(0x2A);
dreschpe 0:da1bf437cbc1 286 _spi.write(x >> 8);
dreschpe 0:da1bf437cbc1 287 _spi.write(x);
dreschpe 0:da1bf437cbc1 288 _spi.write((x+w-1) >> 8);
dreschpe 0:da1bf437cbc1 289 _spi.write(x+w-1);
dreschpe 0:da1bf437cbc1 290
dreschpe 0:da1bf437cbc1 291 _cs = 1;
dreschpe 0:da1bf437cbc1 292 wr_cmd(0x2B);
dreschpe 0:da1bf437cbc1 293 _spi.write(y >> 8);
dreschpe 0:da1bf437cbc1 294 _spi.write(y);
dreschpe 0:da1bf437cbc1 295 _spi.write((y+h-1) >> 8);
dreschpe 0:da1bf437cbc1 296 _spi.write(y+h-1);
dreschpe 0:da1bf437cbc1 297 _cs = 1;
dreschpe 0:da1bf437cbc1 298 }
dreschpe 0:da1bf437cbc1 299
dreschpe 0:da1bf437cbc1 300
dreschpe 0:da1bf437cbc1 301 void SPI_TFT_ILI9341::WindowMax (void)
dreschpe 0:da1bf437cbc1 302 {
dreschpe 0:da1bf437cbc1 303 window (0, 0, width(), height());
dreschpe 0:da1bf437cbc1 304 }
dreschpe 0:da1bf437cbc1 305
dreschpe 0:da1bf437cbc1 306
dreschpe 0:da1bf437cbc1 307
dreschpe 0:da1bf437cbc1 308 void SPI_TFT_ILI9341::cls (void)
dreschpe 0:da1bf437cbc1 309 {
dreschpe 0:da1bf437cbc1 310 int pixel = ( width() * height());
dreschpe 0:da1bf437cbc1 311 WindowMax();
dreschpe 0:da1bf437cbc1 312 wr_cmd(0x2C); // send pixel
dreschpe 0:da1bf437cbc1 313 _spi.format(16,3); // switch to 16 bit Mode 3
dreschpe 0:da1bf437cbc1 314 unsigned int i;
dreschpe 0:da1bf437cbc1 315 for (i = 0; i < ( width() * height()); i++)
dreschpe 0:da1bf437cbc1 316 _spi.write(_background);
dreschpe 0:da1bf437cbc1 317 _cs = 1;
dreschpe 0:da1bf437cbc1 318 _spi.format(8,3);
dreschpe 0:da1bf437cbc1 319 }
dreschpe 0:da1bf437cbc1 320
dreschpe 0:da1bf437cbc1 321
dreschpe 0:da1bf437cbc1 322 void SPI_TFT_ILI9341::circle(int x0, int y0, int r, int color)
dreschpe 0:da1bf437cbc1 323 {
dreschpe 0:da1bf437cbc1 324
mazgch 3:3d7298360e45 325 int x = -r, y = 0, err = 2-2*r, e2;
mazgch 3:3d7298360e45 326 do {
mazgch 3:3d7298360e45 327 pixel(x0-x, y0+y,color);
mazgch 3:3d7298360e45 328 pixel(x0+x, y0+y,color);
mazgch 3:3d7298360e45 329 pixel(x0+x, y0-y,color);
mazgch 3:3d7298360e45 330 pixel(x0-x, y0-y,color);
mazgch 3:3d7298360e45 331 e2 = err;
mazgch 3:3d7298360e45 332 if (e2 <= y) {
mazgch 3:3d7298360e45 333 err += ++y*2+1;
mazgch 3:3d7298360e45 334 if (-x == y && e2 <= x) e2 = 0;
mazgch 3:3d7298360e45 335 }
mazgch 3:3d7298360e45 336 if (e2 > x) err += ++x*2+1;
mazgch 3:3d7298360e45 337 } while (x <= 0);
dreschpe 4:f018e272220b 338
dreschpe 0:da1bf437cbc1 339 }
dreschpe 0:da1bf437cbc1 340
mazgch 3:3d7298360e45 341 void SPI_TFT_ILI9341::fillcircle(int x0, int y0, int r, int color)
dreschpe 0:da1bf437cbc1 342 {
mazgch 3:3d7298360e45 343 int x = -r, y = 0, err = 2-2*r, e2;
mazgch 3:3d7298360e45 344 do {
mazgch 3:3d7298360e45 345 vline(x0-x, y0-y, y0+y, color);
mazgch 3:3d7298360e45 346 vline(x0+x, y0-y, y0+y, color);
mazgch 3:3d7298360e45 347 e2 = err;
mazgch 3:3d7298360e45 348 if (e2 <= y) {
mazgch 3:3d7298360e45 349 err += ++y*2+1;
mazgch 3:3d7298360e45 350 if (-x == y && e2 <= x) e2 = 0;
mazgch 3:3d7298360e45 351 }
mazgch 3:3d7298360e45 352 if (e2 > x) err += ++x*2+1;
mazgch 3:3d7298360e45 353 } while (x <= 0);
dreschpe 0:da1bf437cbc1 354 }
dreschpe 0:da1bf437cbc1 355
dreschpe 0:da1bf437cbc1 356
dreschpe 0:da1bf437cbc1 357 void SPI_TFT_ILI9341::hline(int x0, int x1, int y, int color)
dreschpe 0:da1bf437cbc1 358 {
dreschpe 0:da1bf437cbc1 359 int w;
dreschpe 0:da1bf437cbc1 360 w = x1 - x0 + 1;
dreschpe 0:da1bf437cbc1 361 window(x0,y,w,1);
dreschpe 0:da1bf437cbc1 362 wr_cmd(0x2C); // send pixel
dreschpe 0:da1bf437cbc1 363 _spi.format(16,3); // switch to 16 bit Mode 3
dreschpe 0:da1bf437cbc1 364 int j;
dreschpe 0:da1bf437cbc1 365 for (j=0; j<w; j++) {
dreschpe 0:da1bf437cbc1 366 _spi.write(color);
dreschpe 0:da1bf437cbc1 367 }
dreschpe 0:da1bf437cbc1 368 _cs = 1;
dreschpe 0:da1bf437cbc1 369 _spi.format(8,3);
dreschpe 0:da1bf437cbc1 370 WindowMax();
dreschpe 0:da1bf437cbc1 371 return;
dreschpe 0:da1bf437cbc1 372 }
dreschpe 0:da1bf437cbc1 373
dreschpe 0:da1bf437cbc1 374 void SPI_TFT_ILI9341::vline(int x, int y0, int y1, int color)
dreschpe 0:da1bf437cbc1 375 {
dreschpe 0:da1bf437cbc1 376 int h;
dreschpe 0:da1bf437cbc1 377 h = y1 - y0 + 1;
dreschpe 0:da1bf437cbc1 378 window(x,y0,1,h);
dreschpe 0:da1bf437cbc1 379 wr_cmd(0x2C); // send pixel
dreschpe 0:da1bf437cbc1 380 _spi.format(16,3); // switch to 16 bit Mode 3
dreschpe 0:da1bf437cbc1 381 for (int y=0; y<h; y++) {
dreschpe 0:da1bf437cbc1 382 _spi.write(color);
dreschpe 0:da1bf437cbc1 383 }
dreschpe 0:da1bf437cbc1 384 _cs = 1;
dreschpe 0:da1bf437cbc1 385 _spi.format(8,3);
dreschpe 0:da1bf437cbc1 386 WindowMax();
dreschpe 0:da1bf437cbc1 387 return;
dreschpe 0:da1bf437cbc1 388 }
dreschpe 0:da1bf437cbc1 389
dreschpe 0:da1bf437cbc1 390
dreschpe 0:da1bf437cbc1 391
dreschpe 0:da1bf437cbc1 392 void SPI_TFT_ILI9341::line(int x0, int y0, int x1, int y1, int color)
dreschpe 0:da1bf437cbc1 393 {
dreschpe 0:da1bf437cbc1 394 //WindowMax();
dreschpe 0:da1bf437cbc1 395 int dx = 0, dy = 0;
dreschpe 0:da1bf437cbc1 396 int dx_sym = 0, dy_sym = 0;
dreschpe 0:da1bf437cbc1 397 int dx_x2 = 0, dy_x2 = 0;
dreschpe 0:da1bf437cbc1 398 int di = 0;
dreschpe 0:da1bf437cbc1 399
dreschpe 0:da1bf437cbc1 400 dx = x1-x0;
dreschpe 0:da1bf437cbc1 401 dy = y1-y0;
dreschpe 0:da1bf437cbc1 402
dreschpe 0:da1bf437cbc1 403 if (dx == 0) { /* vertical line */
dreschpe 0:da1bf437cbc1 404 if (y1 > y0) vline(x0,y0,y1,color);
dreschpe 0:da1bf437cbc1 405 else vline(x0,y1,y0,color);
dreschpe 0:da1bf437cbc1 406 return;
dreschpe 0:da1bf437cbc1 407 }
dreschpe 0:da1bf437cbc1 408
dreschpe 0:da1bf437cbc1 409 if (dx > 0) {
dreschpe 0:da1bf437cbc1 410 dx_sym = 1;
dreschpe 0:da1bf437cbc1 411 } else {
dreschpe 0:da1bf437cbc1 412 dx_sym = -1;
dreschpe 0:da1bf437cbc1 413 }
dreschpe 0:da1bf437cbc1 414 if (dy == 0) { /* horizontal line */
dreschpe 0:da1bf437cbc1 415 if (x1 > x0) hline(x0,x1,y0,color);
dreschpe 0:da1bf437cbc1 416 else hline(x1,x0,y0,color);
dreschpe 0:da1bf437cbc1 417 return;
dreschpe 0:da1bf437cbc1 418 }
dreschpe 0:da1bf437cbc1 419
dreschpe 0:da1bf437cbc1 420 if (dy > 0) {
dreschpe 0:da1bf437cbc1 421 dy_sym = 1;
dreschpe 0:da1bf437cbc1 422 } else {
dreschpe 0:da1bf437cbc1 423 dy_sym = -1;
dreschpe 0:da1bf437cbc1 424 }
dreschpe 0:da1bf437cbc1 425
dreschpe 0:da1bf437cbc1 426 dx = dx_sym*dx;
dreschpe 0:da1bf437cbc1 427 dy = dy_sym*dy;
dreschpe 0:da1bf437cbc1 428
dreschpe 0:da1bf437cbc1 429 dx_x2 = dx*2;
dreschpe 0:da1bf437cbc1 430 dy_x2 = dy*2;
dreschpe 0:da1bf437cbc1 431
dreschpe 0:da1bf437cbc1 432 if (dx >= dy) {
dreschpe 0:da1bf437cbc1 433 di = dy_x2 - dx;
dreschpe 0:da1bf437cbc1 434 while (x0 != x1) {
dreschpe 0:da1bf437cbc1 435
dreschpe 0:da1bf437cbc1 436 pixel(x0, y0, color);
dreschpe 0:da1bf437cbc1 437 x0 += dx_sym;
dreschpe 0:da1bf437cbc1 438 if (di<0) {
dreschpe 0:da1bf437cbc1 439 di += dy_x2;
dreschpe 0:da1bf437cbc1 440 } else {
dreschpe 0:da1bf437cbc1 441 di += dy_x2 - dx_x2;
dreschpe 0:da1bf437cbc1 442 y0 += dy_sym;
dreschpe 0:da1bf437cbc1 443 }
dreschpe 0:da1bf437cbc1 444 }
dreschpe 0:da1bf437cbc1 445 pixel(x0, y0, color);
dreschpe 0:da1bf437cbc1 446 } else {
dreschpe 0:da1bf437cbc1 447 di = dx_x2 - dy;
dreschpe 0:da1bf437cbc1 448 while (y0 != y1) {
dreschpe 0:da1bf437cbc1 449 pixel(x0, y0, color);
dreschpe 0:da1bf437cbc1 450 y0 += dy_sym;
dreschpe 0:da1bf437cbc1 451 if (di < 0) {
dreschpe 0:da1bf437cbc1 452 di += dx_x2;
dreschpe 0:da1bf437cbc1 453 } else {
dreschpe 0:da1bf437cbc1 454 di += dx_x2 - dy_x2;
dreschpe 0:da1bf437cbc1 455 x0 += dx_sym;
dreschpe 0:da1bf437cbc1 456 }
dreschpe 0:da1bf437cbc1 457 }
dreschpe 0:da1bf437cbc1 458 pixel(x0, y0, color);
dreschpe 0:da1bf437cbc1 459 }
dreschpe 0:da1bf437cbc1 460 return;
dreschpe 0:da1bf437cbc1 461 }
dreschpe 0:da1bf437cbc1 462
dreschpe 0:da1bf437cbc1 463
dreschpe 0:da1bf437cbc1 464 void SPI_TFT_ILI9341::rect(int x0, int y0, int x1, int y1, int color)
dreschpe 0:da1bf437cbc1 465 {
dreschpe 0:da1bf437cbc1 466
dreschpe 0:da1bf437cbc1 467 if (x1 > x0) hline(x0,x1,y0,color);
dreschpe 0:da1bf437cbc1 468 else hline(x1,x0,y0,color);
dreschpe 0:da1bf437cbc1 469
dreschpe 0:da1bf437cbc1 470 if (y1 > y0) vline(x0,y0,y1,color);
dreschpe 0:da1bf437cbc1 471 else vline(x0,y1,y0,color);
dreschpe 0:da1bf437cbc1 472
dreschpe 0:da1bf437cbc1 473 if (x1 > x0) hline(x0,x1,y1,color);
dreschpe 0:da1bf437cbc1 474 else hline(x1,x0,y1,color);
dreschpe 0:da1bf437cbc1 475
dreschpe 0:da1bf437cbc1 476 if (y1 > y0) vline(x1,y0,y1,color);
dreschpe 0:da1bf437cbc1 477 else vline(x1,y1,y0,color);
dreschpe 0:da1bf437cbc1 478
dreschpe 0:da1bf437cbc1 479 return;
dreschpe 0:da1bf437cbc1 480 }
dreschpe 0:da1bf437cbc1 481
dreschpe 0:da1bf437cbc1 482
dreschpe 0:da1bf437cbc1 483
dreschpe 0:da1bf437cbc1 484 void SPI_TFT_ILI9341::fillrect(int x0, int y0, int x1, int y1, int color)
dreschpe 0:da1bf437cbc1 485 {
dreschpe 0:da1bf437cbc1 486
dreschpe 0:da1bf437cbc1 487 int h = y1 - y0 + 1;
dreschpe 0:da1bf437cbc1 488 int w = x1 - x0 + 1;
dreschpe 0:da1bf437cbc1 489 int pixel = h * w;
dreschpe 0:da1bf437cbc1 490 window(x0,y0,w,h);
dreschpe 0:da1bf437cbc1 491 wr_cmd(0x2C); // send pixel
dreschpe 0:da1bf437cbc1 492 _spi.format(16,3); // switch to 16 bit Mode 3
dreschpe 0:da1bf437cbc1 493 for (int p=0; p<pixel; p++) {
dreschpe 0:da1bf437cbc1 494 _spi.write(color);
dreschpe 0:da1bf437cbc1 495 }
dreschpe 0:da1bf437cbc1 496 _cs = 1;
dreschpe 0:da1bf437cbc1 497 _spi.format(8,3);
dreschpe 0:da1bf437cbc1 498 WindowMax();
dreschpe 0:da1bf437cbc1 499 return;
dreschpe 0:da1bf437cbc1 500 }
dreschpe 0:da1bf437cbc1 501
dreschpe 0:da1bf437cbc1 502
dreschpe 0:da1bf437cbc1 503 void SPI_TFT_ILI9341::locate(int x, int y)
dreschpe 0:da1bf437cbc1 504 {
dreschpe 0:da1bf437cbc1 505 char_x = x;
dreschpe 0:da1bf437cbc1 506 char_y = y;
dreschpe 0:da1bf437cbc1 507 }
dreschpe 0:da1bf437cbc1 508
dreschpe 0:da1bf437cbc1 509
dreschpe 0:da1bf437cbc1 510
dreschpe 0:da1bf437cbc1 511 int SPI_TFT_ILI9341::columns()
dreschpe 0:da1bf437cbc1 512 {
dreschpe 0:da1bf437cbc1 513 return width() / font[1];
dreschpe 0:da1bf437cbc1 514 }
dreschpe 0:da1bf437cbc1 515
dreschpe 0:da1bf437cbc1 516
dreschpe 0:da1bf437cbc1 517
dreschpe 0:da1bf437cbc1 518 int SPI_TFT_ILI9341::rows()
dreschpe 0:da1bf437cbc1 519 {
dreschpe 0:da1bf437cbc1 520 return height() / font[2];
dreschpe 0:da1bf437cbc1 521 }
dreschpe 0:da1bf437cbc1 522
dreschpe 0:da1bf437cbc1 523
dreschpe 0:da1bf437cbc1 524
dreschpe 0:da1bf437cbc1 525 int SPI_TFT_ILI9341::_putc(int value)
dreschpe 0:da1bf437cbc1 526 {
dreschpe 0:da1bf437cbc1 527 if (value == '\n') { // new line
dreschpe 0:da1bf437cbc1 528 char_x = 0;
dreschpe 0:da1bf437cbc1 529 char_y = char_y + font[2];
dreschpe 0:da1bf437cbc1 530 if (char_y >= height() - font[2]) {
dreschpe 0:da1bf437cbc1 531 char_y = 0;
dreschpe 0:da1bf437cbc1 532 }
dreschpe 0:da1bf437cbc1 533 } else {
dreschpe 0:da1bf437cbc1 534 character(char_x, char_y, value);
dreschpe 0:da1bf437cbc1 535 }
dreschpe 0:da1bf437cbc1 536 return value;
dreschpe 0:da1bf437cbc1 537 }
dreschpe 0:da1bf437cbc1 538
dreschpe 0:da1bf437cbc1 539
dreschpe 0:da1bf437cbc1 540 void SPI_TFT_ILI9341::character(int x, int y, int c)
dreschpe 0:da1bf437cbc1 541 {
dreschpe 0:da1bf437cbc1 542 unsigned int hor,vert,offset,bpl,j,i,b;
dreschpe 0:da1bf437cbc1 543 unsigned char* zeichen;
dreschpe 0:da1bf437cbc1 544 unsigned char z,w;
dreschpe 0:da1bf437cbc1 545
dreschpe 0:da1bf437cbc1 546 if ((c < 31) || (c > 127)) return; // test char range
dreschpe 0:da1bf437cbc1 547
dreschpe 0:da1bf437cbc1 548 // read font parameter from start of array
dreschpe 0:da1bf437cbc1 549 offset = font[0]; // bytes / char
dreschpe 0:da1bf437cbc1 550 hor = font[1]; // get hor size of font
dreschpe 0:da1bf437cbc1 551 vert = font[2]; // get vert size of font
dreschpe 0:da1bf437cbc1 552 bpl = font[3]; // bytes per line
dreschpe 0:da1bf437cbc1 553
dreschpe 0:da1bf437cbc1 554 if (char_x + hor > width()) {
dreschpe 0:da1bf437cbc1 555 char_x = 0;
dreschpe 0:da1bf437cbc1 556 char_y = char_y + vert;
dreschpe 0:da1bf437cbc1 557 if (char_y >= height() - font[2]) {
dreschpe 0:da1bf437cbc1 558 char_y = 0;
dreschpe 0:da1bf437cbc1 559 }
dreschpe 0:da1bf437cbc1 560 }
dreschpe 0:da1bf437cbc1 561 window(char_x, char_y,hor,vert); // char box
dreschpe 0:da1bf437cbc1 562 wr_cmd(0x2C); // send pixel
dreschpe 0:da1bf437cbc1 563 _spi.format(16,3); // switch to 16 bit Mode 3
dreschpe 0:da1bf437cbc1 564 zeichen = &font[((c -32) * offset) + 4]; // start of char bitmap
dreschpe 0:da1bf437cbc1 565 w = zeichen[0]; // width of actual char
dreschpe 0:da1bf437cbc1 566 for (j=0; j<vert; j++) { // vert line
dreschpe 0:da1bf437cbc1 567 for (i=0; i<hor; i++) { // horz line
dreschpe 0:da1bf437cbc1 568 z = zeichen[bpl * i + ((j & 0xF8) >> 3)+1];
dreschpe 0:da1bf437cbc1 569 b = 1 << (j & 0x07);
dreschpe 0:da1bf437cbc1 570 if (( z & b ) == 0x00) {
dreschpe 0:da1bf437cbc1 571 _spi.write(_background);
dreschpe 0:da1bf437cbc1 572 } else {
dreschpe 0:da1bf437cbc1 573 _spi.write(_foreground);
dreschpe 0:da1bf437cbc1 574 }
dreschpe 0:da1bf437cbc1 575 }
dreschpe 0:da1bf437cbc1 576 }
dreschpe 0:da1bf437cbc1 577 _cs = 1;
dreschpe 0:da1bf437cbc1 578 _spi.format(8,3);
dreschpe 0:da1bf437cbc1 579 WindowMax();
dreschpe 0:da1bf437cbc1 580 if ((w + 2) < hor) { // x offset to next char
dreschpe 0:da1bf437cbc1 581 char_x += w + 2;
dreschpe 0:da1bf437cbc1 582 } else char_x += hor;
dreschpe 0:da1bf437cbc1 583 }
dreschpe 0:da1bf437cbc1 584
dreschpe 0:da1bf437cbc1 585
dreschpe 0:da1bf437cbc1 586 void SPI_TFT_ILI9341::set_font(unsigned char* f)
dreschpe 0:da1bf437cbc1 587 {
dreschpe 0:da1bf437cbc1 588 font = f;
dreschpe 0:da1bf437cbc1 589 }
dreschpe 0:da1bf437cbc1 590
dreschpe 0:da1bf437cbc1 591
dreschpe 0:da1bf437cbc1 592
dreschpe 0:da1bf437cbc1 593 void SPI_TFT_ILI9341::Bitmap(unsigned int x, unsigned int y, unsigned int w, unsigned int h,unsigned char *bitmap)
dreschpe 0:da1bf437cbc1 594 {
dreschpe 0:da1bf437cbc1 595 unsigned int j;
dreschpe 0:da1bf437cbc1 596 int padd;
dreschpe 0:da1bf437cbc1 597 unsigned short *bitmap_ptr = (unsigned short *)bitmap;
dreschpe 2:0a16083193a4 598 unsigned int i;
dreschpe 2:0a16083193a4 599
dreschpe 0:da1bf437cbc1 600 // the lines are padded to multiple of 4 bytes in a bitmap
dreschpe 0:da1bf437cbc1 601 padd = -1;
dreschpe 0:da1bf437cbc1 602 do {
dreschpe 0:da1bf437cbc1 603 padd ++;
dreschpe 0:da1bf437cbc1 604 } while (2*(w + padd)%4 != 0);
dreschpe 0:da1bf437cbc1 605 window(x, y, w, h);
dreschpe 2:0a16083193a4 606 bitmap_ptr += ((h - 1)* (w + padd));
dreschpe 0:da1bf437cbc1 607 wr_cmd(0x2C); // send pixel
dreschpe 0:da1bf437cbc1 608 _spi.format(16,3); // switch to 16 bit Mode 3
dreschpe 2:0a16083193a4 609 for (j = 0; j < h; j++) { //Lines
dreschpe 2:0a16083193a4 610 for (i = 0; i < w; i++) { // one line
dreschpe 2:0a16083193a4 611 _spi.write(*bitmap_ptr); // copy pixel data to TFT
dreschpe 0:da1bf437cbc1 612 bitmap_ptr++;
dreschpe 0:da1bf437cbc1 613 }
dreschpe 0:da1bf437cbc1 614 bitmap_ptr -= 2*w;
dreschpe 0:da1bf437cbc1 615 bitmap_ptr -= padd;
dreschpe 0:da1bf437cbc1 616 }
dreschpe 0:da1bf437cbc1 617 _cs = 1;
dreschpe 0:da1bf437cbc1 618 _spi.format(8,3);
dreschpe 0:da1bf437cbc1 619 WindowMax();
dreschpe 0:da1bf437cbc1 620 }
dreschpe 0:da1bf437cbc1 621
dreschpe 0:da1bf437cbc1 622
dreschpe 0:da1bf437cbc1 623 int SPI_TFT_ILI9341::BMP_16(unsigned int x, unsigned int y, const char *Name_BMP)
dreschpe 0:da1bf437cbc1 624 {
dreschpe 0:da1bf437cbc1 625
dreschpe 0:da1bf437cbc1 626 #define OffsetPixelWidth 18
dreschpe 0:da1bf437cbc1 627 #define OffsetPixelHeigh 22
dreschpe 0:da1bf437cbc1 628 #define OffsetFileSize 34
dreschpe 0:da1bf437cbc1 629 #define OffsetPixData 10
dreschpe 0:da1bf437cbc1 630 #define OffsetBPP 28
dreschpe 0:da1bf437cbc1 631
dreschpe 0:da1bf437cbc1 632 char filename[50];
dreschpe 0:da1bf437cbc1 633 unsigned char BMP_Header[54];
dreschpe 0:da1bf437cbc1 634 unsigned short BPP_t;
dreschpe 0:da1bf437cbc1 635 unsigned int PixelWidth,PixelHeigh,start_data;
dreschpe 0:da1bf437cbc1 636 unsigned int i,off;
dreschpe 0:da1bf437cbc1 637 int padd,j;
dreschpe 0:da1bf437cbc1 638 unsigned short *line;
dreschpe 0:da1bf437cbc1 639
dreschpe 0:da1bf437cbc1 640 // get the filename
dreschpe 0:da1bf437cbc1 641 LocalFileSystem local("local");
dreschpe 0:da1bf437cbc1 642 sprintf(&filename[0],"/local/");
dreschpe 0:da1bf437cbc1 643 i=7;
dreschpe 0:da1bf437cbc1 644 while (*Name_BMP!='\0') {
dreschpe 0:da1bf437cbc1 645 filename[i++]=*Name_BMP++;
dreschpe 0:da1bf437cbc1 646 }
dreschpe 0:da1bf437cbc1 647
dreschpe 0:da1bf437cbc1 648 fprintf(stderr, "filename : %s \n\r",filename);
dreschpe 0:da1bf437cbc1 649
dreschpe 0:da1bf437cbc1 650 FILE *Image = fopen((const char *)&filename[0], "rb"); // open the bmp file
dreschpe 0:da1bf437cbc1 651 if (!Image) {
dreschpe 0:da1bf437cbc1 652 return(0); // error file not found !
dreschpe 0:da1bf437cbc1 653 }
dreschpe 0:da1bf437cbc1 654
dreschpe 0:da1bf437cbc1 655 fread(&BMP_Header[0],1,54,Image); // get the BMP Header
dreschpe 0:da1bf437cbc1 656
dreschpe 0:da1bf437cbc1 657 if (BMP_Header[0] != 0x42 || BMP_Header[1] != 0x4D) { // check magic byte
dreschpe 0:da1bf437cbc1 658 fclose(Image);
dreschpe 0:da1bf437cbc1 659 return(-1); // error no BMP file
dreschpe 0:da1bf437cbc1 660 }
dreschpe 0:da1bf437cbc1 661
dreschpe 0:da1bf437cbc1 662 BPP_t = BMP_Header[OffsetBPP] + (BMP_Header[OffsetBPP + 1] << 8);
dreschpe 0:da1bf437cbc1 663 if (BPP_t != 0x0010) {
dreschpe 0:da1bf437cbc1 664 fclose(Image);
dreschpe 0:da1bf437cbc1 665 return(-2); // error no 16 bit BMP
dreschpe 0:da1bf437cbc1 666 }
dreschpe 0:da1bf437cbc1 667
dreschpe 0:da1bf437cbc1 668 PixelHeigh = BMP_Header[OffsetPixelHeigh] + (BMP_Header[OffsetPixelHeigh + 1] << 8) + (BMP_Header[OffsetPixelHeigh + 2] << 16) + (BMP_Header[OffsetPixelHeigh + 3] << 24);
dreschpe 0:da1bf437cbc1 669 PixelWidth = BMP_Header[OffsetPixelWidth] + (BMP_Header[OffsetPixelWidth + 1] << 8) + (BMP_Header[OffsetPixelWidth + 2] << 16) + (BMP_Header[OffsetPixelWidth + 3] << 24);
dreschpe 0:da1bf437cbc1 670 if (PixelHeigh > height() + y || PixelWidth > width() + x) {
dreschpe 0:da1bf437cbc1 671 fclose(Image);
dreschpe 0:da1bf437cbc1 672 return(-3); // to big
dreschpe 0:da1bf437cbc1 673 }
dreschpe 0:da1bf437cbc1 674
dreschpe 0:da1bf437cbc1 675 start_data = BMP_Header[OffsetPixData] + (BMP_Header[OffsetPixData + 1] << 8) + (BMP_Header[OffsetPixData + 2] << 16) + (BMP_Header[OffsetPixData + 3] << 24);
dreschpe 0:da1bf437cbc1 676
dreschpe 0:da1bf437cbc1 677 line = (unsigned short *) malloc (2 * PixelWidth); // we need a buffer for a line
dreschpe 0:da1bf437cbc1 678 if (line == NULL) {
dreschpe 0:da1bf437cbc1 679 return(-4); // error no memory
dreschpe 0:da1bf437cbc1 680 }
dreschpe 0:da1bf437cbc1 681
dreschpe 0:da1bf437cbc1 682 // the bmp lines are padded to multiple of 4 bytes
dreschpe 0:da1bf437cbc1 683 padd = -1;
dreschpe 0:da1bf437cbc1 684 do {
dreschpe 0:da1bf437cbc1 685 padd ++;
dreschpe 0:da1bf437cbc1 686 } while ((PixelWidth * 2 + padd)%4 != 0);
dreschpe 0:da1bf437cbc1 687
dreschpe 0:da1bf437cbc1 688
dreschpe 0:da1bf437cbc1 689 //fseek(Image, 70 ,SEEK_SET);
dreschpe 0:da1bf437cbc1 690 window(x, y,PixelWidth ,PixelHeigh);
dreschpe 0:da1bf437cbc1 691 wr_cmd(0x2C); // send pixel
dreschpe 0:da1bf437cbc1 692 _spi.format(16,3); // switch to 16 bit Mode 3
dreschpe 0:da1bf437cbc1 693 for (j = PixelHeigh - 1; j >= 0; j--) { //Lines bottom up
dreschpe 0:da1bf437cbc1 694 off = j * (PixelWidth * 2 + padd) + start_data; // start of line
dreschpe 0:da1bf437cbc1 695 fseek(Image, off ,SEEK_SET);
dreschpe 0:da1bf437cbc1 696 fread(line,1,PixelWidth * 2,Image); // read a line - slow !
dreschpe 0:da1bf437cbc1 697 for (i = 0; i < PixelWidth; i++) { // copy pixel data to TFT
dreschpe 0:da1bf437cbc1 698 _spi.write(line[i]); // one 16 bit pixel
dreschpe 0:da1bf437cbc1 699 }
dreschpe 0:da1bf437cbc1 700 }
dreschpe 0:da1bf437cbc1 701 _cs = 1;
dreschpe 0:da1bf437cbc1 702 _spi.format(8,3);
dreschpe 0:da1bf437cbc1 703 free (line);
dreschpe 0:da1bf437cbc1 704 fclose(Image);
dreschpe 0:da1bf437cbc1 705 WindowMax();
dreschpe 0:da1bf437cbc1 706 return(1);
dreschpe 0:da1bf437cbc1 707 }