Example using the support package for LPC4088 DisplayModule
Dependencies: DMBasicGUI DMSupport
Example using a lot of the features in the software package for the LPC4088 Display Module.
This project can be selected as a template when creating a new project based on the LPC4088 Display Module.
Information
This project works on the 4.3" display modules.
Some of the apps works on the 5" display modules. The ImageViewer and Slideshow app will show the images distorted as it does not take the resolution into consideration.
Information
The USB Status app is disabled. The Image viewer looks for images in the root of SD cards, USB memory sticks or the file system on the QSPI flash. The Slideshow app expects to find a slideshow script in /mci/elec14/ea_logo.txt.
This is what it looks like on the 4.3" display:
AppImageViewer.cpp@18:715f542538b3, 2015-01-20 (annotated)
- Committer:
- embeddedartists
- Date:
- Tue Jan 20 09:15:05 2015 +0100
- Revision:
- 18:715f542538b3
- Parent:
- 16:77f4f42eb6a7
- Child:
- 22:7e59255933b5
- Added AppRTCSettings to allow user to configure the RTC
- Added shared image loading for AppNetworkSettings and AppRTCSettings
- Modified some icons
- Merged the three USB threads for Keyboard,Mouse and MSD into one and had it listen for signals from the USBHost instead of polling
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
embeddedartists | 13:57e65aba9802 | 1 | /* |
embeddedartists | 13:57e65aba9802 | 2 | * Copyright 2014 Embedded Artists AB |
embeddedartists | 13:57e65aba9802 | 3 | * |
embeddedartists | 13:57e65aba9802 | 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
embeddedartists | 13:57e65aba9802 | 5 | * you may not use this file except in compliance with the License. |
embeddedartists | 13:57e65aba9802 | 6 | * You may obtain a copy of the License at |
embeddedartists | 13:57e65aba9802 | 7 | * |
embeddedartists | 13:57e65aba9802 | 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
embeddedartists | 13:57e65aba9802 | 9 | * |
embeddedartists | 13:57e65aba9802 | 10 | * Unless required by applicable law or agreed to in writing, software |
embeddedartists | 13:57e65aba9802 | 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
embeddedartists | 13:57e65aba9802 | 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
embeddedartists | 13:57e65aba9802 | 13 | * See the License for the specific language governing permissions and |
embeddedartists | 13:57e65aba9802 | 14 | * limitations under the License. |
embeddedartists | 13:57e65aba9802 | 15 | */ |
embeddedartists | 13:57e65aba9802 | 16 | |
embeddedartists | 13:57e65aba9802 | 17 | |
embeddedartists | 13:57e65aba9802 | 18 | #include "mbed.h" |
embeddedartists | 13:57e65aba9802 | 19 | #include "AppImageViewer.h" |
embeddedartists | 13:57e65aba9802 | 20 | #include "lpc_swim_font.h" |
embeddedartists | 13:57e65aba9802 | 21 | #include "lpc_swim_image.h" |
embeddedartists | 13:57e65aba9802 | 22 | #include "Image.h" |
embeddedartists | 13:57e65aba9802 | 23 | #include "image_data.h" |
embeddedartists | 13:57e65aba9802 | 24 | |
embeddedartists | 13:57e65aba9802 | 25 | /****************************************************************************** |
embeddedartists | 13:57e65aba9802 | 26 | * Defines and typedefs |
embeddedartists | 13:57e65aba9802 | 27 | *****************************************************************************/ |
embeddedartists | 13:57e65aba9802 | 28 | |
embeddedartists | 13:57e65aba9802 | 29 | #define BOX_SIDE 192 //256 |
embeddedartists | 13:57e65aba9802 | 30 | |
embeddedartists | 13:57e65aba9802 | 31 | #define BTN_WIDTH 40 |
embeddedartists | 13:57e65aba9802 | 32 | #define BTN_HEIGHT 40 |
embeddedartists | 13:57e65aba9802 | 33 | #define BTN_OFF 20 |
embeddedartists | 13:57e65aba9802 | 34 | |
embeddedartists | 13:57e65aba9802 | 35 | /****************************************************************************** |
embeddedartists | 13:57e65aba9802 | 36 | * Global variables |
embeddedartists | 13:57e65aba9802 | 37 | *****************************************************************************/ |
embeddedartists | 13:57e65aba9802 | 38 | |
embeddedartists | 13:57e65aba9802 | 39 | /****************************************************************************** |
embeddedartists | 13:57e65aba9802 | 40 | * Private functions |
embeddedartists | 13:57e65aba9802 | 41 | *****************************************************************************/ |
embeddedartists | 13:57e65aba9802 | 42 | |
embeddedartists | 13:57e65aba9802 | 43 | static void buttonClicked(uint32_t x) |
embeddedartists | 13:57e65aba9802 | 44 | { |
embeddedartists | 13:57e65aba9802 | 45 | bool* done = (bool*)x; |
embeddedartists | 13:57e65aba9802 | 46 | *done = true; |
embeddedartists | 13:57e65aba9802 | 47 | } |
embeddedartists | 13:57e65aba9802 | 48 | |
embeddedartists | 13:57e65aba9802 | 49 | void AppImageViewer::draw() |
embeddedartists | 13:57e65aba9802 | 50 | { |
embeddedartists | 13:57e65aba9802 | 51 | // Prepare fullscreen |
embeddedartists | 13:57e65aba9802 | 52 | swim_window_open(_win, |
embeddedartists | 13:57e65aba9802 | 53 | _disp->width(), _disp->height(), // full size |
embeddedartists | 13:57e65aba9802 | 54 | (COLOR_T*)_fb1, |
embeddedartists | 13:57e65aba9802 | 55 | 0,0,_disp->width()-1, _disp->height()-1, // window position and size |
embeddedartists | 13:57e65aba9802 | 56 | 0, // border |
embeddedartists | 13:57e65aba9802 | 57 | BLACK, BLACK, BLACK); // colors: pen, backgr, forgr |
embeddedartists | 13:57e65aba9802 | 58 | |
embeddedartists | 13:57e65aba9802 | 59 | _btn = new ImageButton(_win->fb, _win->xpmax - BTN_OFF - BTN_WIDTH, _win->ypmax - BTN_OFF - BTN_HEIGHT, BTN_WIDTH, BTN_HEIGHT); |
embeddedartists | 13:57e65aba9802 | 60 | _btn->loadImages(img_ok, img_size_ok); |
embeddedartists | 13:57e65aba9802 | 61 | } |
embeddedartists | 13:57e65aba9802 | 62 | |
embeddedartists | 13:57e65aba9802 | 63 | void AppImageViewer::load(const char* file) |
embeddedartists | 13:57e65aba9802 | 64 | { |
embeddedartists | 13:57e65aba9802 | 65 | Image::ImageData_t pre = {0}; |
embeddedartists | 13:57e65aba9802 | 66 | |
embeddedartists | 13:57e65aba9802 | 67 | int res = Image::decode(file, Image::RES_16BIT, &pre); |
embeddedartists | 13:57e65aba9802 | 68 | if (res == 0) { |
embeddedartists | 13:57e65aba9802 | 69 | DMBoard::instance().logger()->printf("[ImageLoader] Preparing %s\n", file); |
embeddedartists | 13:57e65aba9802 | 70 | Image::ImageData_t* data = _mailbox.alloc(osWaitForever); |
embeddedartists | 13:57e65aba9802 | 71 | if (data != NULL) { |
embeddedartists | 13:57e65aba9802 | 72 | *data = pre; |
embeddedartists | 13:57e65aba9802 | 73 | _mailbox.put(data); |
embeddedartists | 13:57e65aba9802 | 74 | } else { |
embeddedartists | 13:57e65aba9802 | 75 | DMBoard::instance().logger()->printf("[ImageLoader] Failed to get memory to prepare %s\n", file); |
embeddedartists | 13:57e65aba9802 | 76 | } |
embeddedartists | 13:57e65aba9802 | 77 | } |
embeddedartists | 13:57e65aba9802 | 78 | } |
embeddedartists | 13:57e65aba9802 | 79 | |
embeddedartists | 13:57e65aba9802 | 80 | static bool recursiveProcessFS(char* buff, const char* name, int maxLen, AppImageViewer* app, int depth, int maxDepth) |
embeddedartists | 13:57e65aba9802 | 81 | { |
embeddedartists | 13:57e65aba9802 | 82 | if (depth > maxDepth) { |
embeddedartists | 13:57e65aba9802 | 83 | return true; |
embeddedartists | 13:57e65aba9802 | 84 | } |
embeddedartists | 13:57e65aba9802 | 85 | uint32_t len = strlen(buff); |
embeddedartists | 13:57e65aba9802 | 86 | if (len > 0) { |
embeddedartists | 13:57e65aba9802 | 87 | if (buff[len - 1] != '/') { |
embeddedartists | 13:57e65aba9802 | 88 | buff[len++] = '/'; |
embeddedartists | 13:57e65aba9802 | 89 | buff[len] = '\0'; |
embeddedartists | 13:57e65aba9802 | 90 | } |
embeddedartists | 13:57e65aba9802 | 91 | } |
embeddedartists | 13:57e65aba9802 | 92 | if ((strlen(name) + len) >= maxLen) { |
embeddedartists | 13:57e65aba9802 | 93 | // avoid memory overwrite due to too long file path |
embeddedartists | 13:57e65aba9802 | 94 | return true; |
embeddedartists | 13:57e65aba9802 | 95 | } |
embeddedartists | 13:57e65aba9802 | 96 | strcat(buff, name); |
embeddedartists | 13:57e65aba9802 | 97 | len += strlen(name); |
embeddedartists | 13:57e65aba9802 | 98 | |
embeddedartists | 13:57e65aba9802 | 99 | DIR *d = opendir(buff); |
embeddedartists | 13:57e65aba9802 | 100 | bool result = true; // success |
embeddedartists | 13:57e65aba9802 | 101 | if (d != NULL) { |
embeddedartists | 13:57e65aba9802 | 102 | struct dirent *p; |
embeddedartists | 13:57e65aba9802 | 103 | while (result && ((p = readdir(d)) != NULL)) { |
embeddedartists | 13:57e65aba9802 | 104 | result = recursiveProcessFS(buff, p->d_name, maxLen, app, depth+1, maxDepth); |
embeddedartists | 13:57e65aba9802 | 105 | buff[len] = '\0'; |
embeddedartists | 13:57e65aba9802 | 106 | } |
embeddedartists | 13:57e65aba9802 | 107 | closedir(d); |
embeddedartists | 13:57e65aba9802 | 108 | } else { |
embeddedartists | 13:57e65aba9802 | 109 | // a file |
embeddedartists | 13:57e65aba9802 | 110 | if (len > 3) { |
embeddedartists | 13:57e65aba9802 | 111 | if ((strncasecmp(buff+len-4, ".bmp", 4)==0) || |
embeddedartists | 13:57e65aba9802 | 112 | (strncasecmp(buff+len-4, ".png", 4)==0) || |
embeddedartists | 13:57e65aba9802 | 113 | (strncasecmp(buff+len-4, ".raw", 4)==0)) { |
embeddedartists | 13:57e65aba9802 | 114 | DMBoard::instance().logger()->printf("[ImageLoader] found %s\n", buff); |
embeddedartists | 13:57e65aba9802 | 115 | app->load(buff); |
embeddedartists | 13:57e65aba9802 | 116 | } |
embeddedartists | 13:57e65aba9802 | 117 | } |
embeddedartists | 13:57e65aba9802 | 118 | } |
embeddedartists | 13:57e65aba9802 | 119 | return result; |
embeddedartists | 13:57e65aba9802 | 120 | } |
embeddedartists | 13:57e65aba9802 | 121 | |
embeddedartists | 13:57e65aba9802 | 122 | static void loaderTask(void const* args) |
embeddedartists | 13:57e65aba9802 | 123 | { |
embeddedartists | 13:57e65aba9802 | 124 | char* buff = (char*)malloc(512); |
embeddedartists | 13:57e65aba9802 | 125 | if (buff != NULL) |
embeddedartists | 13:57e65aba9802 | 126 | { |
embeddedartists | 13:57e65aba9802 | 127 | DMBoard::instance().logger()->printf("Recursive list of file and folders in /mci/\n"); |
embeddedartists | 13:57e65aba9802 | 128 | buff[0] = '\0'; |
embeddedartists | 13:57e65aba9802 | 129 | recursiveProcessFS(buff, "/mci/", 512, (AppImageViewer*)args, 0, 2); |
embeddedartists | 13:57e65aba9802 | 130 | DMBoard::instance().logger()->printf("Recursive list of file and folders in /usb/\n"); |
embeddedartists | 13:57e65aba9802 | 131 | buff[0] = '\0'; |
embeddedartists | 13:57e65aba9802 | 132 | recursiveProcessFS(buff, "/usb/", 512, (AppImageViewer*)args, 0, 2); |
embeddedartists | 13:57e65aba9802 | 133 | DMBoard::instance().logger()->printf("Recursive list of file and folders in /qspi/\n"); |
embeddedartists | 13:57e65aba9802 | 134 | buff[0] = '\0'; |
embeddedartists | 13:57e65aba9802 | 135 | recursiveProcessFS(buff, "/qspi/", 512, (AppImageViewer*)args, 0, 2); |
embeddedartists | 13:57e65aba9802 | 136 | free(buff); |
embeddedartists | 13:57e65aba9802 | 137 | } |
embeddedartists | 13:57e65aba9802 | 138 | DMBoard::instance().logger()->printf("loaderTask done\n"); |
embeddedartists | 13:57e65aba9802 | 139 | } |
embeddedartists | 13:57e65aba9802 | 140 | |
embeddedartists | 13:57e65aba9802 | 141 | /****************************************************************************** |
embeddedartists | 13:57e65aba9802 | 142 | * Public functions |
embeddedartists | 13:57e65aba9802 | 143 | *****************************************************************************/ |
embeddedartists | 13:57e65aba9802 | 144 | |
embeddedartists | 13:57e65aba9802 | 145 | AppImageViewer::AppImageViewer() : _disp(NULL), _win(NULL), _fb1(NULL), _fb2(NULL), _btn(NULL), _active(0) |
embeddedartists | 13:57e65aba9802 | 146 | { |
embeddedartists | 13:57e65aba9802 | 147 | } |
embeddedartists | 13:57e65aba9802 | 148 | |
embeddedartists | 13:57e65aba9802 | 149 | AppImageViewer::~AppImageViewer() |
embeddedartists | 13:57e65aba9802 | 150 | { |
embeddedartists | 13:57e65aba9802 | 151 | teardown(); |
embeddedartists | 13:57e65aba9802 | 152 | } |
embeddedartists | 13:57e65aba9802 | 153 | |
embeddedartists | 13:57e65aba9802 | 154 | bool AppImageViewer::setup() |
embeddedartists | 13:57e65aba9802 | 155 | { |
embeddedartists | 13:57e65aba9802 | 156 | _disp = DMBoard::instance().display(); |
embeddedartists | 13:57e65aba9802 | 157 | _win = (SWIM_WINDOW_T*)malloc(sizeof(SWIM_WINDOW_T)); |
embeddedartists | 13:57e65aba9802 | 158 | _fb1 = _disp->allocateFramebuffer(); |
embeddedartists | 13:57e65aba9802 | 159 | _fb2 = _disp->allocateFramebuffer(); |
embeddedartists | 13:57e65aba9802 | 160 | |
embeddedartists | 13:57e65aba9802 | 161 | return (_win != NULL && _fb1 != NULL && _fb2 != NULL); |
embeddedartists | 13:57e65aba9802 | 162 | } |
embeddedartists | 13:57e65aba9802 | 163 | |
embeddedartists | 13:57e65aba9802 | 164 | void AppImageViewer::runToCompletion() |
embeddedartists | 13:57e65aba9802 | 165 | { |
embeddedartists | 13:57e65aba9802 | 166 | // Alternative 1: use the calling thread's context to run in |
embeddedartists | 13:57e65aba9802 | 167 | bool done = false; |
embeddedartists | 13:57e65aba9802 | 168 | draw(); |
embeddedartists | 13:57e65aba9802 | 169 | _btn->setAction(buttonClicked, (uint32_t)&done); |
embeddedartists | 13:57e65aba9802 | 170 | void* oldFB = _disp->swapFramebuffer(_fb1); |
embeddedartists | 13:57e65aba9802 | 171 | |
embeddedartists | 13:57e65aba9802 | 172 | _active = 1; |
embeddedartists | 13:57e65aba9802 | 173 | |
embeddedartists | 13:57e65aba9802 | 174 | Thread* tLoader = new Thread(loaderTask, this, osPriorityNormal, 8192); |
embeddedartists | 13:57e65aba9802 | 175 | |
embeddedartists | 13:57e65aba9802 | 176 | bool first = true; |
embeddedartists | 13:57e65aba9802 | 177 | Timer t; |
embeddedartists | 13:57e65aba9802 | 178 | while(!done) { |
embeddedartists | 13:57e65aba9802 | 179 | osEvent evt = _mailbox.get(1000); |
embeddedartists | 13:57e65aba9802 | 180 | if (evt.status == osEventMail) { |
embeddedartists | 13:57e65aba9802 | 181 | COLOR_T* fb; |
embeddedartists | 13:57e65aba9802 | 182 | if (_active == 1) { |
embeddedartists | 13:57e65aba9802 | 183 | // render on the second frame buffer |
embeddedartists | 13:57e65aba9802 | 184 | fb = (COLOR_T*)_fb2; |
embeddedartists | 13:57e65aba9802 | 185 | } else { |
embeddedartists | 13:57e65aba9802 | 186 | // render on the first frame buffer |
embeddedartists | 13:57e65aba9802 | 187 | fb = (COLOR_T*)_fb1; |
embeddedartists | 13:57e65aba9802 | 188 | } |
embeddedartists | 13:57e65aba9802 | 189 | _win->fb = fb; |
embeddedartists | 13:57e65aba9802 | 190 | Image::ImageData_t* data = (Image::ImageData_t*)evt.value.p; |
embeddedartists | 13:57e65aba9802 | 191 | swim_put_scale_image(_win, (COLOR_T*)data->pixels, data->width, data->height); |
embeddedartists | 18:715f542538b3 | 192 | free(data->pointerToFree); |
embeddedartists | 13:57e65aba9802 | 193 | _mailbox.free(data); |
embeddedartists | 13:57e65aba9802 | 194 | if (first) { |
embeddedartists | 13:57e65aba9802 | 195 | first = false; |
embeddedartists | 13:57e65aba9802 | 196 | t.start(); |
embeddedartists | 13:57e65aba9802 | 197 | } else { |
embeddedartists | 13:57e65aba9802 | 198 | while (t.read_ms() < 2000) { |
embeddedartists | 13:57e65aba9802 | 199 | Thread::wait(100); |
embeddedartists | 13:57e65aba9802 | 200 | } |
embeddedartists | 13:57e65aba9802 | 201 | } |
embeddedartists | 13:57e65aba9802 | 202 | _disp->setFramebuffer(fb); |
embeddedartists | 13:57e65aba9802 | 203 | _active = (_active == 1 ? 2 : 1); |
embeddedartists | 13:57e65aba9802 | 204 | t.reset(); |
embeddedartists | 13:57e65aba9802 | 205 | } else if (tLoader->get_state() == Thread::Inactive) { |
embeddedartists | 13:57e65aba9802 | 206 | // No more images in the queue and the loader thread |
embeddedartists | 13:57e65aba9802 | 207 | // has completed its search |
embeddedartists | 13:57e65aba9802 | 208 | break; |
embeddedartists | 13:57e65aba9802 | 209 | } |
embeddedartists | 13:57e65aba9802 | 210 | } |
embeddedartists | 13:57e65aba9802 | 211 | |
embeddedartists | 13:57e65aba9802 | 212 | delete tLoader; |
embeddedartists | 13:57e65aba9802 | 213 | |
embeddedartists | 13:57e65aba9802 | 214 | // The button must be drawn on the current framebuffer |
embeddedartists | 13:57e65aba9802 | 215 | _btn->draw(_win->fb); |
embeddedartists | 13:57e65aba9802 | 216 | |
embeddedartists | 16:77f4f42eb6a7 | 217 | // Wait for touches, but the AppLauncher is already listening |
embeddedartists | 16:77f4f42eb6a7 | 218 | // for new touch event and sends a signal to its thread which |
embeddedartists | 16:77f4f42eb6a7 | 219 | // is the same as runs this function so it is enough to wait |
embeddedartists | 16:77f4f42eb6a7 | 220 | // for that signal. |
embeddedartists | 13:57e65aba9802 | 221 | TouchPanel* touch = DMBoard::instance().touchPanel(); |
embeddedartists | 16:77f4f42eb6a7 | 222 | touch_coordinate_t coord; |
embeddedartists | 13:57e65aba9802 | 223 | while(!done) { |
embeddedartists | 16:77f4f42eb6a7 | 224 | Thread::signal_wait(0x1); |
embeddedartists | 13:57e65aba9802 | 225 | if (touch->read(coord) == TouchPanel::TouchError_Ok) { |
embeddedartists | 13:57e65aba9802 | 226 | if (_btn->handle(coord.x, coord.y, coord.z > 0)) { |
embeddedartists | 13:57e65aba9802 | 227 | _btn->draw(); |
embeddedartists | 13:57e65aba9802 | 228 | } |
embeddedartists | 13:57e65aba9802 | 229 | } |
embeddedartists | 13:57e65aba9802 | 230 | } |
embeddedartists | 13:57e65aba9802 | 231 | |
embeddedartists | 13:57e65aba9802 | 232 | // User has clicked the button, restore the original FB |
embeddedartists | 13:57e65aba9802 | 233 | _disp->swapFramebuffer(oldFB); |
embeddedartists | 13:57e65aba9802 | 234 | swim_window_close(_win); |
embeddedartists | 13:57e65aba9802 | 235 | } |
embeddedartists | 13:57e65aba9802 | 236 | |
embeddedartists | 13:57e65aba9802 | 237 | bool AppImageViewer::teardown() |
embeddedartists | 13:57e65aba9802 | 238 | { |
embeddedartists | 13:57e65aba9802 | 239 | if (_win != NULL) { |
embeddedartists | 13:57e65aba9802 | 240 | free(_win); |
embeddedartists | 13:57e65aba9802 | 241 | _win = NULL; |
embeddedartists | 13:57e65aba9802 | 242 | } |
embeddedartists | 13:57e65aba9802 | 243 | if (_fb1 != NULL) { |
embeddedartists | 13:57e65aba9802 | 244 | free(_fb1); |
embeddedartists | 13:57e65aba9802 | 245 | _fb1 = NULL; |
embeddedartists | 13:57e65aba9802 | 246 | } |
embeddedartists | 13:57e65aba9802 | 247 | if (_fb2 != NULL) { |
embeddedartists | 13:57e65aba9802 | 248 | free(_fb2); |
embeddedartists | 13:57e65aba9802 | 249 | _fb2 = NULL; |
embeddedartists | 13:57e65aba9802 | 250 | } |
embeddedartists | 13:57e65aba9802 | 251 | if (_btn != NULL) { |
embeddedartists | 13:57e65aba9802 | 252 | delete _btn; |
embeddedartists | 13:57e65aba9802 | 253 | _btn = NULL; |
embeddedartists | 13:57e65aba9802 | 254 | } |
embeddedartists | 13:57e65aba9802 | 255 | return true; |
embeddedartists | 13:57e65aba9802 | 256 | } |
embeddedartists | 13:57e65aba9802 | 257 | |
embeddedartists | 13:57e65aba9802 | 258 |