EmbeddedArtists AB / Mbed 2 deprecated lpc4088_ebb_gui_mandelbrot

Graphical demo for the LPC4088 Experiment Base Board with one of the Display Expansion Kits. This program displays a Mandelbrot calculation in a circular zoomed-in sequence.

Dependencies:   EALib mbed

TestDisplay.cpp@0:e24e3d741c52, 2014-10-03 (annotated)

Committer:
embeddedartists
Date:
Fri Oct 03 13:21:52 2014 +0000
Revision:
0:e24e3d741c52
First version

Who changed what in which revision?

UserRevisionLine numberNew contents of line
embeddedartists 0:e24e3d741c52 1 /*
embeddedartists 0:e24e3d741c52 2 * Copyright 2013 Embedded Artists AB
embeddedartists 0:e24e3d741c52 3 *
embeddedartists 0:e24e3d741c52 4 * Licensed under the Apache License, Version 2.0 (the "License");
embeddedartists 0:e24e3d741c52 5 * you may not use this file except in compliance with the License.
embeddedartists 0:e24e3d741c52 6 * You may obtain a copy of the License at
embeddedartists 0:e24e3d741c52 7 *
embeddedartists 0:e24e3d741c52 8 * http://www.apache.org/licenses/LICENSE-2.0
embeddedartists 0:e24e3d741c52 9 *
embeddedartists 0:e24e3d741c52 10 * Unless required by applicable law or agreed to in writing, software
embeddedartists 0:e24e3d741c52 11 * distributed under the License is distributed on an "AS IS" BASIS,
embeddedartists 0:e24e3d741c52 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
embeddedartists 0:e24e3d741c52 13 * See the License for the specific language governing permissions and
embeddedartists 0:e24e3d741c52 14 * limitations under the License.
embeddedartists 0:e24e3d741c52 15 */
embeddedartists 0:e24e3d741c52 16
embeddedartists 0:e24e3d741c52 17 /******************************************************************************
embeddedartists 0:e24e3d741c52 18 * Includes
embeddedartists 0:e24e3d741c52 19 *****************************************************************************/
embeddedartists 0:e24e3d741c52 20
embeddedartists 0:e24e3d741c52 21 #include "mbed.h"
embeddedartists 0:e24e3d741c52 22 #include "TestDisplay.h"
embeddedartists 0:e24e3d741c52 23 #include "sdram.h"
embeddedartists 0:e24e3d741c52 24
embeddedartists 0:e24e3d741c52 25 #include "MandelbDemo.h"
embeddedartists 0:e24e3d741c52 26
embeddedartists 0:e24e3d741c52 27 /******************************************************************************
embeddedartists 0:e24e3d741c52 28 * Defines and typedefs
embeddedartists 0:e24e3d741c52 29 *****************************************************************************/
embeddedartists 0:e24e3d741c52 30
embeddedartists 0:e24e3d741c52 31 #define LCD_CONFIGURATION_43 \
embeddedartists 0:e24e3d741c52 32 40, /* horizontalBackPorch */ \
embeddedartists 0:e24e3d741c52 33 5, /* horizontalFrontPorch */ \
embeddedartists 0:e24e3d741c52 34 2, /* hsync */ \
embeddedartists 0:e24e3d741c52 35 480, /* width */ \
embeddedartists 0:e24e3d741c52 36 8, /* verticalBackPorch */ \
embeddedartists 0:e24e3d741c52 37 8, /* verticalFrontPorch */ \
embeddedartists 0:e24e3d741c52 38 2, /* vsync */ \
embeddedartists 0:e24e3d741c52 39 272, /* height */ \
embeddedartists 0:e24e3d741c52 40 false, /* invertOutputEnable */ \
embeddedartists 0:e24e3d741c52 41 false, /* invertPanelClock */ \
embeddedartists 0:e24e3d741c52 42 true, /* invertHsync */ \
embeddedartists 0:e24e3d741c52 43 true, /* invertVsync */ \
embeddedartists 0:e24e3d741c52 44 1, /* acBias */ \
embeddedartists 0:e24e3d741c52 45 LcdController::Bpp_16_565, /* bpp */ \
embeddedartists 0:e24e3d741c52 46 9000000, /* optimalClock */ \
embeddedartists 0:e24e3d741c52 47 LcdController::Tft, /* panelType */ \
embeddedartists 0:e24e3d741c52 48 false /* dualPanel */
embeddedartists 0:e24e3d741c52 49
embeddedartists 0:e24e3d741c52 50 #define LCD_INIT_STRING_43 (char*)"v1,cd0,c50,cc0,c30,d100,c31,d100,cd1,d10,o,c51,cc100"
embeddedartists 0:e24e3d741c52 51
embeddedartists 0:e24e3d741c52 52 #define LCD_CONFIGURATION_50 \
embeddedartists 0:e24e3d741c52 53 46, /* horizontalBackPorch */ \
embeddedartists 0:e24e3d741c52 54 20, /* horizontalFrontPorch */ \
embeddedartists 0:e24e3d741c52 55 2, /* hsync */ \
embeddedartists 0:e24e3d741c52 56 800, /* width */ \
embeddedartists 0:e24e3d741c52 57 23, /* verticalBackPorch */ \
embeddedartists 0:e24e3d741c52 58 10, /* verticalFrontPorch */ \
embeddedartists 0:e24e3d741c52 59 3, /* vsync */ \
embeddedartists 0:e24e3d741c52 60 480, /* height */ \
embeddedartists 0:e24e3d741c52 61 false, /* invertOutputEnable */ \
embeddedartists 0:e24e3d741c52 62 false, /* invertPanelClock */ \
embeddedartists 0:e24e3d741c52 63 true, /* invertHsync */ \
embeddedartists 0:e24e3d741c52 64 true, /* invertVsync */ \
embeddedartists 0:e24e3d741c52 65 1, /* acBias */ \
embeddedartists 0:e24e3d741c52 66 LcdController::Bpp_16_565, /* bpp */ \
embeddedartists 0:e24e3d741c52 67 30000000, /* optimalClock */ \
embeddedartists 0:e24e3d741c52 68 LcdController::Tft, /* panelType */ \
embeddedartists 0:e24e3d741c52 69 false /* dualPanel */
embeddedartists 0:e24e3d741c52 70
embeddedartists 0:e24e3d741c52 71 #define LCD_INIT_STRING_50 (char*)"v1,cc0,c31,d50,o,d200,c51,cc100"
embeddedartists 0:e24e3d741c52 72
embeddedartists 0:e24e3d741c52 73 #define MY_ABS(__a) (((__a) < 0) ? -(__a) : (__a))
embeddedartists 0:e24e3d741c52 74
embeddedartists 0:e24e3d741c52 75 /******************************************************************************
embeddedartists 0:e24e3d741c52 76 * Public Functions
embeddedartists 0:e24e3d741c52 77 *****************************************************************************/
embeddedartists 0:e24e3d741c52 78
embeddedartists 0:e24e3d741c52 79 /*
embeddedartists 0:e24e3d741c52 80 Prerequisites:
embeddedartists 0:e24e3d741c52 81
embeddedartists 0:e24e3d741c52 82 - A display must be connected to the LPC4088 Experiment Base Board
embeddedartists 0:e24e3d741c52 83 with the FPC connector
embeddedartists 0:e24e3d741c52 84
embeddedartists 0:e24e3d741c52 85 - The touch controller uses the I2C bus so for this test to work
embeddedartists 0:e24e3d741c52 86 jumpers JP8 and JP9 on the LPC4088 Experiment Base Board must
embeddedartists 0:e24e3d741c52 87 both be in positions 1-2
embeddedartists 0:e24e3d741c52 88
embeddedartists 0:e24e3d741c52 89 */
embeddedartists 0:e24e3d741c52 90
embeddedartists 0:e24e3d741c52 91 TestDisplay::TestDisplay(WhichDisplay which) :
embeddedartists 0:e24e3d741c52 92 _initStr(NULL),
embeddedartists 0:e24e3d741c52 93 _lcdCfg(NULL),
embeddedartists 0:e24e3d741c52 94 _lcdBoard(P0_27, P0_28),
embeddedartists 0:e24e3d741c52 95 _touch(P0_27, P0_28, P2_25) {
embeddedartists 0:e24e3d741c52 96
embeddedartists 0:e24e3d741c52 97 switch (which) {
embeddedartists 0:e24e3d741c52 98 case TFT_5:
embeddedartists 0:e24e3d741c52 99 _lcdCfg = new LcdController::Config(LCD_CONFIGURATION_50);
embeddedartists 0:e24e3d741c52 100 _initStr = LCD_INIT_STRING_50;
embeddedartists 0:e24e3d741c52 101 break;
embeddedartists 0:e24e3d741c52 102 case TFT_4_3:
embeddedartists 0:e24e3d741c52 103 _lcdCfg = new LcdController::Config(LCD_CONFIGURATION_43);
embeddedartists 0:e24e3d741c52 104 _initStr = LCD_INIT_STRING_43;
embeddedartists 0:e24e3d741c52 105 break;
embeddedartists 0:e24e3d741c52 106 default:
embeddedartists 0:e24e3d741c52 107 mbed_die();
embeddedartists 0:e24e3d741c52 108 }
embeddedartists 0:e24e3d741c52 109
embeddedartists 0:e24e3d741c52 110 if (sdram_init() == 1) {
embeddedartists 0:e24e3d741c52 111 printf("Failed to initialize SDRAM\n");
embeddedartists 0:e24e3d741c52 112 _framebuffer = 0;
embeddedartists 0:e24e3d741c52 113 } else {
embeddedartists 0:e24e3d741c52 114 _framebuffer = (uint32_t) malloc(_lcdCfg->width * _lcdCfg->height * 2 * 3); // 2 is for 16 bit color, 3 is the number of buffers
embeddedartists 0:e24e3d741c52 115 if (_framebuffer != 0) {
embeddedartists 0:e24e3d741c52 116 memset((uint8_t*)_framebuffer, 0, _lcdCfg->width * _lcdCfg->height * 2 * 3);
embeddedartists 0:e24e3d741c52 117 }
embeddedartists 0:e24e3d741c52 118 }
embeddedartists 0:e24e3d741c52 119 }
embeddedartists 0:e24e3d741c52 120
embeddedartists 0:e24e3d741c52 121 TestDisplay::~TestDisplay() {
embeddedartists 0:e24e3d741c52 122 if (_framebuffer != 0) {
embeddedartists 0:e24e3d741c52 123 free((void*)_framebuffer);
embeddedartists 0:e24e3d741c52 124 _framebuffer = 0;
embeddedartists 0:e24e3d741c52 125 }
embeddedartists 0:e24e3d741c52 126 }
embeddedartists 0:e24e3d741c52 127
embeddedartists 0:e24e3d741c52 128 bool TestDisplay::runTest() {
embeddedartists 0:e24e3d741c52 129 do {
embeddedartists 0:e24e3d741c52 130 if (_framebuffer == 0) {
embeddedartists 0:e24e3d741c52 131 printf("Failed to allocate memory for framebuffer\n");
embeddedartists 0:e24e3d741c52 132 break;
embeddedartists 0:e24e3d741c52 133 }
embeddedartists 0:e24e3d741c52 134
embeddedartists 0:e24e3d741c52 135 EaLcdBoard::Result result = _lcdBoard.open(_lcdCfg, _initStr);
embeddedartists 0:e24e3d741c52 136 if (result != EaLcdBoard::Ok) {
embeddedartists 0:e24e3d741c52 137 printf("Failed to open display, error %d\n", result);
embeddedartists 0:e24e3d741c52 138 break;
embeddedartists 0:e24e3d741c52 139 }
embeddedartists 0:e24e3d741c52 140
embeddedartists 0:e24e3d741c52 141 result = _lcdBoard.setFrameBuffer(_framebuffer);
embeddedartists 0:e24e3d741c52 142 if (result != EaLcdBoard::Ok) {
embeddedartists 0:e24e3d741c52 143 printf("Failed to set framebuffer, error %d\n", result);
embeddedartists 0:e24e3d741c52 144 break;
embeddedartists 0:e24e3d741c52 145 }
embeddedartists 0:e24e3d741c52 146
embeddedartists 0:e24e3d741c52 147 MandelbDemo mandelDemo((uint8_t *)_framebuffer, _lcdCfg->width, _lcdCfg->height);
embeddedartists 0:e24e3d741c52 148 while (1) {
embeddedartists 0:e24e3d741c52 149 mandelDemo.run(_lcdBoard, 750, 20);
embeddedartists 0:e24e3d741c52 150 }
embeddedartists 0:e24e3d741c52 151 } while(0);
embeddedartists 0:e24e3d741c52 152
embeddedartists 0:e24e3d741c52 153 return false;
embeddedartists 0:e24e3d741c52 154 }
embeddedartists 0:e24e3d741c52 155
embeddedartists 0:e24e3d741c52 156 void TestDisplay::calibrate_drawMarker(Graphics &g, uint16_t x, uint16_t y, bool erase) {
embeddedartists 0:e24e3d741c52 157 uint16_t color = (erase ? 0x0000 : 0xffff);
embeddedartists 0:e24e3d741c52 158 g.put_line(x-15, y, x+15, y, color);
embeddedartists 0:e24e3d741c52 159 g.put_line(x, y-15, x, y+15, color);
embeddedartists 0:e24e3d741c52 160 g.put_circle(x, y, color, 10, false);
embeddedartists 0:e24e3d741c52 161 }
embeddedartists 0:e24e3d741c52 162
embeddedartists 0:e24e3d741c52 163 bool TestDisplay::calibrate_display() {
embeddedartists 0:e24e3d741c52 164 bool morePoints = true;
embeddedartists 0:e24e3d741c52 165 uint16_t x, y;
embeddedartists 0:e24e3d741c52 166 int point = 0;
embeddedartists 0:e24e3d741c52 167 Graphics g((uint16_t*)_framebuffer, _lcdCfg->width, _lcdCfg->height);
embeddedartists 0:e24e3d741c52 168
embeddedartists 0:e24e3d741c52 169 do {
embeddedartists 0:e24e3d741c52 170 if (!_touch.init(_lcdCfg->width, _lcdCfg->height)) {
embeddedartists 0:e24e3d741c52 171 printf("Failed to initialize touch controller\n");
embeddedartists 0:e24e3d741c52 172 break;
embeddedartists 0:e24e3d741c52 173 }
embeddedartists 0:e24e3d741c52 174 if (!_touch.calibrateStart()) {
embeddedartists 0:e24e3d741c52 175 printf("Failed to start calibration\n");
embeddedartists 0:e24e3d741c52 176 break;
embeddedartists 0:e24e3d741c52 177 }
embeddedartists 0:e24e3d741c52 178 while (morePoints) {
embeddedartists 0:e24e3d741c52 179 if (point++ > 0) {
embeddedartists 0:e24e3d741c52 180 // erase old location
embeddedartists 0:e24e3d741c52 181 calibrate_drawMarker(g, x, y, true);
embeddedartists 0:e24e3d741c52 182 }
embeddedartists 0:e24e3d741c52 183 if (!_touch.getNextCalibratePoint(&x, &y)) {
embeddedartists 0:e24e3d741c52 184 printf("Failed to get calibration point\n");
embeddedartists 0:e24e3d741c52 185 break;
embeddedartists 0:e24e3d741c52 186 }
embeddedartists 0:e24e3d741c52 187 calibrate_drawMarker(g, x, y, false);
embeddedartists 0:e24e3d741c52 188 if (!_touch.waitForCalibratePoint(&morePoints, 0)) {
embeddedartists 0:e24e3d741c52 189 printf("Failed to get user click\n");
embeddedartists 0:e24e3d741c52 190 break;
embeddedartists 0:e24e3d741c52 191 }
embeddedartists 0:e24e3d741c52 192 }
embeddedartists 0:e24e3d741c52 193 if (morePoints) {
embeddedartists 0:e24e3d741c52 194 // aborted calibration due to error(s)
embeddedartists 0:e24e3d741c52 195 break;
embeddedartists 0:e24e3d741c52 196 }
embeddedartists 0:e24e3d741c52 197
embeddedartists 0:e24e3d741c52 198 // erase old location
embeddedartists 0:e24e3d741c52 199 calibrate_drawMarker(g, x, y, true);
embeddedartists 0:e24e3d741c52 200
embeddedartists 0:e24e3d741c52 201 // allow user to draw for 5999 seconds
embeddedartists 0:e24e3d741c52 202 Timer t;
embeddedartists 0:e24e3d741c52 203 t.start();
embeddedartists 0:e24e3d741c52 204 TouchPanel::touchCoordinate_t tc;
embeddedartists 0:e24e3d741c52 205 while(t.read() < 6000) {
embeddedartists 0:e24e3d741c52 206 if (_touch.read(tc)) {
embeddedartists 0:e24e3d741c52 207 //printf("TC: x,y,z = {%5d, %5d, %5d}\n", tc.x, tc.y, tc.z);
embeddedartists 0:e24e3d741c52 208 if (tc.z) {
embeddedartists 0:e24e3d741c52 209 g.put_dot(tc.x, tc.y, 0xffff);
embeddedartists 0:e24e3d741c52 210 }
embeddedartists 0:e24e3d741c52 211 }
embeddedartists 0:e24e3d741c52 212 }
embeddedartists 0:e24e3d741c52 213 } while(0);
embeddedartists 0:e24e3d741c52 214
embeddedartists 0:e24e3d741c52 215 return !morePoints;
embeddedartists 0:e24e3d741c52 216 }