EmbeddedArtists AB / Mbed 2 deprecated lpc4088_ebb_gui_emwin

Graphical demo for the LPC4088 Experiment Base Board with one of the Display Expansion Kits. This program displays how to use the emWin library from Segger.

Dependencies:   EALib ewgui mbed

This program requires the emWin library. Instructions and more information.

EwGuiImpl.cpp@0:7f5765fcd048, 2015-07-14 (annotated)

Committer:
embeddedartists
Date:
Tue Jul 14 11:34:15 2015 +0000
Revision:
0:7f5765fcd048
First version

Who changed what in which revision?

UserRevisionLine numberNew contents of line
embeddedartists 0:7f5765fcd048 1 #include "EwGuiImpl.h"
embeddedartists 0:7f5765fcd048 2
embeddedartists 0:7f5765fcd048 3 #include "LcdController.h"
embeddedartists 0:7f5765fcd048 4 #include "EaLcdBoardGPIO.h"
embeddedartists 0:7f5765fcd048 5 #include "sdram.h"
embeddedartists 0:7f5765fcd048 6 #include "AR1021I2C.h"
embeddedartists 0:7f5765fcd048 7
embeddedartists 0:7f5765fcd048 8
embeddedartists 0:7f5765fcd048 9 #define PIXEL_SIZE (2)
embeddedartists 0:7f5765fcd048 10
embeddedartists 0:7f5765fcd048 11 #define LCD_CONFIGURATION_43 \
embeddedartists 0:7f5765fcd048 12 40, /* horizontalBackPorch */ \
embeddedartists 0:7f5765fcd048 13 5, /* horizontalFrontPorch */ \
embeddedartists 0:7f5765fcd048 14 2, /* hsync */ \
embeddedartists 0:7f5765fcd048 15 480, /* width */ \
embeddedartists 0:7f5765fcd048 16 8, /* verticalBackPorch */ \
embeddedartists 0:7f5765fcd048 17 8, /* verticalFrontPorch */ \
embeddedartists 0:7f5765fcd048 18 2, /* vsync */ \
embeddedartists 0:7f5765fcd048 19 272, /* height */ \
embeddedartists 0:7f5765fcd048 20 false, /* invertOutputEnable */ \
embeddedartists 0:7f5765fcd048 21 false, /* invertPanelClock */ \
embeddedartists 0:7f5765fcd048 22 true, /* invertHsync */ \
embeddedartists 0:7f5765fcd048 23 true, /* invertVsync */ \
embeddedartists 0:7f5765fcd048 24 1, /* acBias */ \
embeddedartists 0:7f5765fcd048 25 LcdController::Bpp_16_565, /* bpp */ \
embeddedartists 0:7f5765fcd048 26 9000000, /* optimalClock */ \
embeddedartists 0:7f5765fcd048 27 LcdController::Tft, /* panelType */ \
embeddedartists 0:7f5765fcd048 28 false /* dualPanel */
embeddedartists 0:7f5765fcd048 29
embeddedartists 0:7f5765fcd048 30 #define LCD_INIT_STRING_43 (char*)"v1,cd0,c50,cc0,c30,d100,c31,d100,cd1,d10,o,c51,cc100"
embeddedartists 0:7f5765fcd048 31
embeddedartists 0:7f5765fcd048 32 #define LCD_CONFIGURATION_50 \
embeddedartists 0:7f5765fcd048 33 46, /* horizontalBackPorch */ \
embeddedartists 0:7f5765fcd048 34 20, /* horizontalFrontPorch */ \
embeddedartists 0:7f5765fcd048 35 2, /* hsync */ \
embeddedartists 0:7f5765fcd048 36 800, /* width */ \
embeddedartists 0:7f5765fcd048 37 23, /* verticalBackPorch */ \
embeddedartists 0:7f5765fcd048 38 10, /* verticalFrontPorch */ \
embeddedartists 0:7f5765fcd048 39 3, /* vsync */ \
embeddedartists 0:7f5765fcd048 40 480, /* height */ \
embeddedartists 0:7f5765fcd048 41 false, /* invertOutputEnable */ \
embeddedartists 0:7f5765fcd048 42 false, /* invertPanelClock */ \
embeddedartists 0:7f5765fcd048 43 true, /* invertHsync */ \
embeddedartists 0:7f5765fcd048 44 true, /* invertVsync */ \
embeddedartists 0:7f5765fcd048 45 1, /* acBias */ \
embeddedartists 0:7f5765fcd048 46 LcdController::Bpp_16_565, /* bpp */ \
embeddedartists 0:7f5765fcd048 47 30000000, /* optimalClock */ \
embeddedartists 0:7f5765fcd048 48 LcdController::Tft, /* panelType */ \
embeddedartists 0:7f5765fcd048 49 false /* dualPanel */
embeddedartists 0:7f5765fcd048 50
embeddedartists 0:7f5765fcd048 51 #define LCD_INIT_STRING_50 (char*)"v1,cc0,c31,d50,o,d200,c51,cc100"
embeddedartists 0:7f5765fcd048 52
embeddedartists 0:7f5765fcd048 53 EwGuiImpl::EwGuiImpl(WhichDisplay which) {
embeddedartists 0:7f5765fcd048 54
embeddedartists 0:7f5765fcd048 55 EaLcdBoardGPIO lcdBoard(P0_27, P0_28);
embeddedartists 0:7f5765fcd048 56 EaLcdBoardGPIO::Result result;
embeddedartists 0:7f5765fcd048 57 LcdController::Config* lcdCfg;
embeddedartists 0:7f5765fcd048 58
embeddedartists 0:7f5765fcd048 59 do {
embeddedartists 0:7f5765fcd048 60
embeddedartists 0:7f5765fcd048 61 switch (which) {
embeddedartists 0:7f5765fcd048 62 case TFT_5:
embeddedartists 0:7f5765fcd048 63 lcdCfg = new LcdController::Config(LCD_CONFIGURATION_50);
embeddedartists 0:7f5765fcd048 64 result = lcdBoard.open(lcdCfg, LCD_INIT_STRING_50);
embeddedartists 0:7f5765fcd048 65 break;
embeddedartists 0:7f5765fcd048 66 case TFT_4_3:
embeddedartists 0:7f5765fcd048 67 lcdCfg = new LcdController::Config(LCD_CONFIGURATION_43);
embeddedartists 0:7f5765fcd048 68 result = lcdBoard.open(lcdCfg, LCD_INIT_STRING_43);
embeddedartists 0:7f5765fcd048 69 break;
embeddedartists 0:7f5765fcd048 70 default:
embeddedartists 0:7f5765fcd048 71 mbed_die();
embeddedartists 0:7f5765fcd048 72 }
embeddedartists 0:7f5765fcd048 73
embeddedartists 0:7f5765fcd048 74 if (result != EaLcdBoard::Ok) {
embeddedartists 0:7f5765fcd048 75 printf("Failed to open display: %d\n", result);
embeddedartists 0:7f5765fcd048 76 break;
embeddedartists 0:7f5765fcd048 77 }
embeddedartists 0:7f5765fcd048 78
embeddedartists 0:7f5765fcd048 79 _width = lcdCfg->width;
embeddedartists 0:7f5765fcd048 80 _height = lcdCfg->height;
embeddedartists 0:7f5765fcd048 81
embeddedartists 0:7f5765fcd048 82 // allocate buffer, width x height x 2 (2 bytes = 16 bit color data)
embeddedartists 0:7f5765fcd048 83 _fb = (uint32_t)malloc(_width*_height*PIXEL_SIZE);
embeddedartists 0:7f5765fcd048 84 if (_fb == 0) {
embeddedartists 0:7f5765fcd048 85 printf("Failed to allocate frame buffer\n");
embeddedartists 0:7f5765fcd048 86 break;
embeddedartists 0:7f5765fcd048 87 }
embeddedartists 0:7f5765fcd048 88
embeddedartists 0:7f5765fcd048 89 result = lcdBoard.setFrameBuffer(_fb);
embeddedartists 0:7f5765fcd048 90 if (result != EaLcdBoard::Ok) {
embeddedartists 0:7f5765fcd048 91 printf("Failed to activate frameBuffer: %d\n", result);
embeddedartists 0:7f5765fcd048 92 break;
embeddedartists 0:7f5765fcd048 93 }
embeddedartists 0:7f5765fcd048 94
embeddedartists 0:7f5765fcd048 95 _memSz = 1024*1024*5;
embeddedartists 0:7f5765fcd048 96 _mem = (uint32_t)malloc(_memSz);
embeddedartists 0:7f5765fcd048 97 if (_mem == 0) {
embeddedartists 0:7f5765fcd048 98 printf("Failed to allocate memory block for emwin\n");
embeddedartists 0:7f5765fcd048 99 break;
embeddedartists 0:7f5765fcd048 100 }
embeddedartists 0:7f5765fcd048 101
embeddedartists 0:7f5765fcd048 102
embeddedartists 0:7f5765fcd048 103 memset((void*)_fb, 0x0, _width*_height*PIXEL_SIZE);
embeddedartists 0:7f5765fcd048 104
embeddedartists 0:7f5765fcd048 105 // create touch panel
embeddedartists 0:7f5765fcd048 106 _touch = new AR1021I2C(P0_27, P0_28, P2_25);
embeddedartists 0:7f5765fcd048 107
embeddedartists 0:7f5765fcd048 108 if (!_touch->init(_width, _height)) {
embeddedartists 0:7f5765fcd048 109 printf("TouchPanel.init failed\n");
embeddedartists 0:7f5765fcd048 110 break;
embeddedartists 0:7f5765fcd048 111 }
embeddedartists 0:7f5765fcd048 112
embeddedartists 0:7f5765fcd048 113 init();
embeddedartists 0:7f5765fcd048 114
embeddedartists 0:7f5765fcd048 115 } while(0);
embeddedartists 0:7f5765fcd048 116
embeddedartists 0:7f5765fcd048 117
embeddedartists 0:7f5765fcd048 118 }
embeddedartists 0:7f5765fcd048 119
embeddedartists 0:7f5765fcd048 120 void* EwGuiImpl::getMemoryBlockAddress() {
embeddedartists 0:7f5765fcd048 121 return (void*)_mem;
embeddedartists 0:7f5765fcd048 122 }
embeddedartists 0:7f5765fcd048 123
embeddedartists 0:7f5765fcd048 124 uint32_t EwGuiImpl::getMemoryBlockSize() {
embeddedartists 0:7f5765fcd048 125 return _memSz;
embeddedartists 0:7f5765fcd048 126 }
embeddedartists 0:7f5765fcd048 127
embeddedartists 0:7f5765fcd048 128 uint32_t EwGuiImpl::getDisplayWidth() {
embeddedartists 0:7f5765fcd048 129 return _width;
embeddedartists 0:7f5765fcd048 130 }
embeddedartists 0:7f5765fcd048 131
embeddedartists 0:7f5765fcd048 132 uint32_t EwGuiImpl::getDisplayHeight() {
embeddedartists 0:7f5765fcd048 133 return _height;
embeddedartists 0:7f5765fcd048 134 }
embeddedartists 0:7f5765fcd048 135
embeddedartists 0:7f5765fcd048 136 void* EwGuiImpl::getFrameBufferAddress() {
embeddedartists 0:7f5765fcd048 137 return (void*)_fb;
embeddedartists 0:7f5765fcd048 138 }
embeddedartists 0:7f5765fcd048 139
embeddedartists 0:7f5765fcd048 140 void EwGuiImpl::getTouchValues(int32_t* x, int32_t* y, int32_t* z) {
embeddedartists 0:7f5765fcd048 141
embeddedartists 0:7f5765fcd048 142 if (!x || !y || !z) return;
embeddedartists 0:7f5765fcd048 143
embeddedartists 0:7f5765fcd048 144 TouchPanel::touchCoordinate_t coord;
embeddedartists 0:7f5765fcd048 145 _touch->read(coord);
embeddedartists 0:7f5765fcd048 146
embeddedartists 0:7f5765fcd048 147 *x = coord.x;
embeddedartists 0:7f5765fcd048 148 *y = coord.y;
embeddedartists 0:7f5765fcd048 149 *z = coord.z;
embeddedartists 0:7f5765fcd048 150 }
embeddedartists 0:7f5765fcd048 151
embeddedartists 0:7f5765fcd048 152 void EwGuiImpl::calibrate() {
embeddedartists 0:7f5765fcd048 153
embeddedartists 0:7f5765fcd048 154 uint16_t x = 0;
embeddedartists 0:7f5765fcd048 155 uint16_t y = 0;
embeddedartists 0:7f5765fcd048 156 bool hasMorePoints = false;
embeddedartists 0:7f5765fcd048 157
embeddedartists 0:7f5765fcd048 158 EwPainter painter;
embeddedartists 0:7f5765fcd048 159 painter.saveContext();
embeddedartists 0:7f5765fcd048 160
embeddedartists 0:7f5765fcd048 161 do {
embeddedartists 0:7f5765fcd048 162
embeddedartists 0:7f5765fcd048 163 printf("Starting calibration\n");
embeddedartists 0:7f5765fcd048 164 if (!_touch->calibrateStart()) {
embeddedartists 0:7f5765fcd048 165 printf("Failed to start calibration\n");
embeddedartists 0:7f5765fcd048 166 break;
embeddedartists 0:7f5765fcd048 167 }
embeddedartists 0:7f5765fcd048 168
embeddedartists 0:7f5765fcd048 169 do {
embeddedartists 0:7f5765fcd048 170 if (!_touch->getNextCalibratePoint(&x, &y)) {
embeddedartists 0:7f5765fcd048 171 printf("Failed to get next calibrate point\n");
embeddedartists 0:7f5765fcd048 172 break;
embeddedartists 0:7f5765fcd048 173 }
embeddedartists 0:7f5765fcd048 174
embeddedartists 0:7f5765fcd048 175 printf("calib: x=%d, y=%d\n", x, y);
embeddedartists 0:7f5765fcd048 176 drawCalibPoint(painter, x, y);
embeddedartists 0:7f5765fcd048 177
embeddedartists 0:7f5765fcd048 178 if (!_touch->waitForCalibratePoint(&hasMorePoints, 0)) {
embeddedartists 0:7f5765fcd048 179 printf("Failed waiting for calibration point\n");
embeddedartists 0:7f5765fcd048 180 break;
embeddedartists 0:7f5765fcd048 181 }
embeddedartists 0:7f5765fcd048 182
embeddedartists 0:7f5765fcd048 183 } while(hasMorePoints);
embeddedartists 0:7f5765fcd048 184
embeddedartists 0:7f5765fcd048 185 printf("Calibration done\n");
embeddedartists 0:7f5765fcd048 186
embeddedartists 0:7f5765fcd048 187
embeddedartists 0:7f5765fcd048 188 } while (0);
embeddedartists 0:7f5765fcd048 189
embeddedartists 0:7f5765fcd048 190
embeddedartists 0:7f5765fcd048 191 painter.clear();
embeddedartists 0:7f5765fcd048 192 painter.restoreContext();
embeddedartists 0:7f5765fcd048 193 }
embeddedartists 0:7f5765fcd048 194
embeddedartists 0:7f5765fcd048 195 void EwGuiImpl::drawCalibPoint(EwPainter &painter, int32_t x, int32_t y) {
embeddedartists 0:7f5765fcd048 196
embeddedartists 0:7f5765fcd048 197 painter.clear();
embeddedartists 0:7f5765fcd048 198 painter.setColor(EW_WHITE);
embeddedartists 0:7f5765fcd048 199 painter.drawStringHorizCenter("Touch circle to calibrate",
embeddedartists 0:7f5765fcd048 200 getDisplayWidth()/2, getDisplayHeight()/2);
embeddedartists 0:7f5765fcd048 201
embeddedartists 0:7f5765fcd048 202 painter.fillCircle(x, y, 10);
embeddedartists 0:7f5765fcd048 203 painter.setColor(EW_BLACK);
embeddedartists 0:7f5765fcd048 204 painter.fillCircle(x, y, 5);
embeddedartists 0:7f5765fcd048 205 }
embeddedartists 0:7f5765fcd048 206