Example that shows how to use the ewgui wrapper classes in combination with Segger's emwin library.
Dependencies: EALib ewgui mbed
EwGuiImpl.cpp@0:6b81fd4666bb, 2013-12-16 (annotated)
- Committer:
- embeddedartists
- Date:
- Mon Dec 16 07:09:17 2013 +0000
- Revision:
- 0:6b81fd4666bb
First commit
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
embeddedartists | 0:6b81fd4666bb | 1 | #include "EwGuiImpl.h" |
embeddedartists | 0:6b81fd4666bb | 2 | |
embeddedartists | 0:6b81fd4666bb | 3 | #include "LcdController.h" |
embeddedartists | 0:6b81fd4666bb | 4 | #include "EaLcdBoard.h" |
embeddedartists | 0:6b81fd4666bb | 5 | #include "sdram.h" |
embeddedartists | 0:6b81fd4666bb | 6 | #include "AR1021.h" |
embeddedartists | 0:6b81fd4666bb | 7 | #include "TSC2046.h" |
embeddedartists | 0:6b81fd4666bb | 8 | |
embeddedartists | 0:6b81fd4666bb | 9 | |
embeddedartists | 0:6b81fd4666bb | 10 | #define PIXEL_SIZE (2) |
embeddedartists | 0:6b81fd4666bb | 11 | |
embeddedartists | 0:6b81fd4666bb | 12 | EwGuiImpl::EwGuiImpl() { |
embeddedartists | 0:6b81fd4666bb | 13 | |
embeddedartists | 0:6b81fd4666bb | 14 | EaLcdBoard lcdBoard(P0_27, P0_28); |
embeddedartists | 0:6b81fd4666bb | 15 | EaLcdBoard::Result result; |
embeddedartists | 0:6b81fd4666bb | 16 | LcdController::Config lcdCfg; |
embeddedartists | 0:6b81fd4666bb | 17 | EaLcdBoard::TouchParams_t touchParams; |
embeddedartists | 0:6b81fd4666bb | 18 | |
embeddedartists | 0:6b81fd4666bb | 19 | do { |
embeddedartists | 0:6b81fd4666bb | 20 | |
embeddedartists | 0:6b81fd4666bb | 21 | result = lcdBoard.open(NULL, NULL); |
embeddedartists | 0:6b81fd4666bb | 22 | if (result != EaLcdBoard::Ok) { |
embeddedartists | 0:6b81fd4666bb | 23 | printf("Failed to open display: %d\n", result); |
embeddedartists | 0:6b81fd4666bb | 24 | break; |
embeddedartists | 0:6b81fd4666bb | 25 | } |
embeddedartists | 0:6b81fd4666bb | 26 | |
embeddedartists | 0:6b81fd4666bb | 27 | result = lcdBoard.getLcdConfig(&lcdCfg); |
embeddedartists | 0:6b81fd4666bb | 28 | if (result != EaLcdBoard::Ok) { |
embeddedartists | 0:6b81fd4666bb | 29 | printf("Failed to get LCD configuration: %d\n", result); |
embeddedartists | 0:6b81fd4666bb | 30 | break; |
embeddedartists | 0:6b81fd4666bb | 31 | } |
embeddedartists | 0:6b81fd4666bb | 32 | |
embeddedartists | 0:6b81fd4666bb | 33 | _width = lcdCfg.width; |
embeddedartists | 0:6b81fd4666bb | 34 | _height = lcdCfg.height; |
embeddedartists | 0:6b81fd4666bb | 35 | |
embeddedartists | 0:6b81fd4666bb | 36 | // allocate buffer, width x height x 2 (2 bytes = 16 bit color data) |
embeddedartists | 0:6b81fd4666bb | 37 | _fb = (uint32_t)malloc(_width*_height*PIXEL_SIZE); |
embeddedartists | 0:6b81fd4666bb | 38 | if (_fb == 0) { |
embeddedartists | 0:6b81fd4666bb | 39 | printf("Failed to allocate frame buffer\n"); |
embeddedartists | 0:6b81fd4666bb | 40 | break; |
embeddedartists | 0:6b81fd4666bb | 41 | } |
embeddedartists | 0:6b81fd4666bb | 42 | |
embeddedartists | 0:6b81fd4666bb | 43 | result = lcdBoard.setFrameBuffer(_fb); |
embeddedartists | 0:6b81fd4666bb | 44 | if (result != EaLcdBoard::Ok) { |
embeddedartists | 0:6b81fd4666bb | 45 | printf("Failed to activate frameBuffer: %d\n", result); |
embeddedartists | 0:6b81fd4666bb | 46 | break; |
embeddedartists | 0:6b81fd4666bb | 47 | } |
embeddedartists | 0:6b81fd4666bb | 48 | |
embeddedartists | 0:6b81fd4666bb | 49 | _memSz = 1024*1024*5; |
embeddedartists | 0:6b81fd4666bb | 50 | _mem = (uint32_t)malloc(_memSz); |
embeddedartists | 0:6b81fd4666bb | 51 | if (_mem == 0) { |
embeddedartists | 0:6b81fd4666bb | 52 | printf("Failed to allocate memory block for emwin\n"); |
embeddedartists | 0:6b81fd4666bb | 53 | break; |
embeddedartists | 0:6b81fd4666bb | 54 | } |
embeddedartists | 0:6b81fd4666bb | 55 | |
embeddedartists | 0:6b81fd4666bb | 56 | |
embeddedartists | 0:6b81fd4666bb | 57 | memset((void*)_fb, 0x0, _width*_height*PIXEL_SIZE); |
embeddedartists | 0:6b81fd4666bb | 58 | |
embeddedartists | 0:6b81fd4666bb | 59 | result = lcdBoard.getTouchParameters(&touchParams); |
embeddedartists | 0:6b81fd4666bb | 60 | if (result != EaLcdBoard::Ok) { |
embeddedartists | 0:6b81fd4666bb | 61 | printf("Failed to get touch panel parameters: %d\n", result); |
embeddedartists | 0:6b81fd4666bb | 62 | break; |
embeddedartists | 0:6b81fd4666bb | 63 | } |
embeddedartists | 0:6b81fd4666bb | 64 | |
embeddedartists | 0:6b81fd4666bb | 65 | // create touch panel |
embeddedartists | 0:6b81fd4666bb | 66 | switch(touchParams.panelId) { |
embeddedartists | 0:6b81fd4666bb | 67 | case EaLcdBoard::TouchPanel_AR1021: |
embeddedartists | 0:6b81fd4666bb | 68 | printf("creating AR1021 touch panel\n"); |
embeddedartists | 0:6b81fd4666bb | 69 | _touch = new AR1021(P2_27, P2_26, P2_22, P2_21, P2_25); |
embeddedartists | 0:6b81fd4666bb | 70 | break; |
embeddedartists | 0:6b81fd4666bb | 71 | |
embeddedartists | 0:6b81fd4666bb | 72 | case EaLcdBoard::TouchPanel_TSC2046: |
embeddedartists | 0:6b81fd4666bb | 73 | case EaLcdBoard::TouchPanelUnknown: |
embeddedartists | 0:6b81fd4666bb | 74 | default: |
embeddedartists | 0:6b81fd4666bb | 75 | // we always default to TSC2046 even if we cannot |
embeddedartists | 0:6b81fd4666bb | 76 | // detect which panel is used |
embeddedartists | 0:6b81fd4666bb | 77 | |
embeddedartists | 0:6b81fd4666bb | 78 | printf("creating TSC2046 touch panel\n"); |
embeddedartists | 0:6b81fd4666bb | 79 | |
embeddedartists | 0:6b81fd4666bb | 80 | _touch = new TSC2046(P2_27, P2_26, P2_22, P2_21); |
embeddedartists | 0:6b81fd4666bb | 81 | break; |
embeddedartists | 0:6b81fd4666bb | 82 | |
embeddedartists | 0:6b81fd4666bb | 83 | } |
embeddedartists | 0:6b81fd4666bb | 84 | |
embeddedartists | 0:6b81fd4666bb | 85 | if (!_touch->init(_width, _height)) { |
embeddedartists | 0:6b81fd4666bb | 86 | printf("TouchPanel.init failed\n"); |
embeddedartists | 0:6b81fd4666bb | 87 | break; |
embeddedartists | 0:6b81fd4666bb | 88 | } |
embeddedartists | 0:6b81fd4666bb | 89 | |
embeddedartists | 0:6b81fd4666bb | 90 | init(); |
embeddedartists | 0:6b81fd4666bb | 91 | |
embeddedartists | 0:6b81fd4666bb | 92 | } while(0); |
embeddedartists | 0:6b81fd4666bb | 93 | |
embeddedartists | 0:6b81fd4666bb | 94 | |
embeddedartists | 0:6b81fd4666bb | 95 | } |
embeddedartists | 0:6b81fd4666bb | 96 | |
embeddedartists | 0:6b81fd4666bb | 97 | void* EwGuiImpl::getMemoryBlockAddress() { |
embeddedartists | 0:6b81fd4666bb | 98 | return (void*)_mem; |
embeddedartists | 0:6b81fd4666bb | 99 | } |
embeddedartists | 0:6b81fd4666bb | 100 | |
embeddedartists | 0:6b81fd4666bb | 101 | uint32_t EwGuiImpl::getMemoryBlockSize() { |
embeddedartists | 0:6b81fd4666bb | 102 | return _memSz; |
embeddedartists | 0:6b81fd4666bb | 103 | } |
embeddedartists | 0:6b81fd4666bb | 104 | |
embeddedartists | 0:6b81fd4666bb | 105 | uint32_t EwGuiImpl::getDisplayWidth() { |
embeddedartists | 0:6b81fd4666bb | 106 | return _width; |
embeddedartists | 0:6b81fd4666bb | 107 | } |
embeddedartists | 0:6b81fd4666bb | 108 | |
embeddedartists | 0:6b81fd4666bb | 109 | uint32_t EwGuiImpl::getDisplayHeight() { |
embeddedartists | 0:6b81fd4666bb | 110 | return _height; |
embeddedartists | 0:6b81fd4666bb | 111 | } |
embeddedartists | 0:6b81fd4666bb | 112 | |
embeddedartists | 0:6b81fd4666bb | 113 | void* EwGuiImpl::getFrameBufferAddress() { |
embeddedartists | 0:6b81fd4666bb | 114 | return (void*)_fb; |
embeddedartists | 0:6b81fd4666bb | 115 | } |
embeddedartists | 0:6b81fd4666bb | 116 | |
embeddedartists | 0:6b81fd4666bb | 117 | void EwGuiImpl::getTouchValues(int32_t* x, int32_t* y, int32_t* z) { |
embeddedartists | 0:6b81fd4666bb | 118 | |
embeddedartists | 0:6b81fd4666bb | 119 | if (!x || !y || !z) return; |
embeddedartists | 0:6b81fd4666bb | 120 | |
embeddedartists | 0:6b81fd4666bb | 121 | TouchPanel::touchCoordinate_t coord; |
embeddedartists | 0:6b81fd4666bb | 122 | _touch->read(coord); |
embeddedartists | 0:6b81fd4666bb | 123 | |
embeddedartists | 0:6b81fd4666bb | 124 | *x = coord.x; |
embeddedartists | 0:6b81fd4666bb | 125 | *y = coord.y; |
embeddedartists | 0:6b81fd4666bb | 126 | *z = coord.z; |
embeddedartists | 0:6b81fd4666bb | 127 | } |
embeddedartists | 0:6b81fd4666bb | 128 | |
embeddedartists | 0:6b81fd4666bb | 129 | void EwGuiImpl::calibrate() { |
embeddedartists | 0:6b81fd4666bb | 130 | |
embeddedartists | 0:6b81fd4666bb | 131 | uint16_t x = 0; |
embeddedartists | 0:6b81fd4666bb | 132 | uint16_t y = 0; |
embeddedartists | 0:6b81fd4666bb | 133 | bool hasMorePoints = false; |
embeddedartists | 0:6b81fd4666bb | 134 | |
embeddedartists | 0:6b81fd4666bb | 135 | EwPainter painter; |
embeddedartists | 0:6b81fd4666bb | 136 | painter.saveContext(); |
embeddedartists | 0:6b81fd4666bb | 137 | |
embeddedartists | 0:6b81fd4666bb | 138 | do { |
embeddedartists | 0:6b81fd4666bb | 139 | |
embeddedartists | 0:6b81fd4666bb | 140 | printf("Starting calibration\n"); |
embeddedartists | 0:6b81fd4666bb | 141 | if (!_touch->calibrateStart()) { |
embeddedartists | 0:6b81fd4666bb | 142 | printf("Failed to start calibration\n"); |
embeddedartists | 0:6b81fd4666bb | 143 | break; |
embeddedartists | 0:6b81fd4666bb | 144 | } |
embeddedartists | 0:6b81fd4666bb | 145 | |
embeddedartists | 0:6b81fd4666bb | 146 | do { |
embeddedartists | 0:6b81fd4666bb | 147 | if (!_touch->getNextCalibratePoint(&x, &y)) { |
embeddedartists | 0:6b81fd4666bb | 148 | printf("Failed to get next calibrate point\n"); |
embeddedartists | 0:6b81fd4666bb | 149 | break; |
embeddedartists | 0:6b81fd4666bb | 150 | } |
embeddedartists | 0:6b81fd4666bb | 151 | |
embeddedartists | 0:6b81fd4666bb | 152 | printf("calib: x=%d, y=%d\n", x, y); |
embeddedartists | 0:6b81fd4666bb | 153 | drawCalibPoint(painter, x, y); |
embeddedartists | 0:6b81fd4666bb | 154 | |
embeddedartists | 0:6b81fd4666bb | 155 | if (!_touch->waitForCalibratePoint(&hasMorePoints, 0)) { |
embeddedartists | 0:6b81fd4666bb | 156 | printf("Failed waiting for calibration point\n"); |
embeddedartists | 0:6b81fd4666bb | 157 | break; |
embeddedartists | 0:6b81fd4666bb | 158 | } |
embeddedartists | 0:6b81fd4666bb | 159 | |
embeddedartists | 0:6b81fd4666bb | 160 | } while(hasMorePoints); |
embeddedartists | 0:6b81fd4666bb | 161 | |
embeddedartists | 0:6b81fd4666bb | 162 | printf("Calibration done\n"); |
embeddedartists | 0:6b81fd4666bb | 163 | |
embeddedartists | 0:6b81fd4666bb | 164 | |
embeddedartists | 0:6b81fd4666bb | 165 | } while (0); |
embeddedartists | 0:6b81fd4666bb | 166 | |
embeddedartists | 0:6b81fd4666bb | 167 | |
embeddedartists | 0:6b81fd4666bb | 168 | painter.clear(); |
embeddedartists | 0:6b81fd4666bb | 169 | painter.restoreContext(); |
embeddedartists | 0:6b81fd4666bb | 170 | } |
embeddedartists | 0:6b81fd4666bb | 171 | |
embeddedartists | 0:6b81fd4666bb | 172 | void EwGuiImpl::drawCalibPoint(EwPainter &painter, int32_t x, int32_t y) { |
embeddedartists | 0:6b81fd4666bb | 173 | |
embeddedartists | 0:6b81fd4666bb | 174 | painter.clear(); |
embeddedartists | 0:6b81fd4666bb | 175 | painter.setColor(EW_WHITE); |
embeddedartists | 0:6b81fd4666bb | 176 | painter.drawStringHorizCenter("Touch circle to calibrate", |
embeddedartists | 0:6b81fd4666bb | 177 | getDisplayWidth()/2, getDisplayHeight()/2); |
embeddedartists | 0:6b81fd4666bb | 178 | |
embeddedartists | 0:6b81fd4666bb | 179 | painter.fillCircle(x, y, 10); |
embeddedartists | 0:6b81fd4666bb | 180 | painter.setColor(EW_BLACK); |
embeddedartists | 0:6b81fd4666bb | 181 | painter.fillCircle(x, y, 5); |
embeddedartists | 0:6b81fd4666bb | 182 | } |