Demo for Embedded World 2015.
Dependencies: DMBasicGUI DMSupport
Demo running on several LPC4088 Display Modules on the Embedded World 2015 exhibition.
Information
To run the demo first drag-n-drop the to_sync.fs3 file to the MBED drive and then drag-n-drop the demo itself. This way both the file system and software are up to date.
This is what the launcher will look like:
AppImageViewer.cpp@0:6bd24cbb88a1, 2015-02-19 (annotated)
- Committer:
- alindvall
- Date:
- Thu Feb 19 13:54:53 2015 +0000
- Revision:
- 0:6bd24cbb88a1
First public version
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
alindvall | 0:6bd24cbb88a1 | 1 | /* |
alindvall | 0:6bd24cbb88a1 | 2 | * Copyright 2014 Embedded Artists AB |
alindvall | 0:6bd24cbb88a1 | 3 | * |
alindvall | 0:6bd24cbb88a1 | 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
alindvall | 0:6bd24cbb88a1 | 5 | * you may not use this file except in compliance with the License. |
alindvall | 0:6bd24cbb88a1 | 6 | * You may obtain a copy of the License at |
alindvall | 0:6bd24cbb88a1 | 7 | * |
alindvall | 0:6bd24cbb88a1 | 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
alindvall | 0:6bd24cbb88a1 | 9 | * |
alindvall | 0:6bd24cbb88a1 | 10 | * Unless required by applicable law or agreed to in writing, software |
alindvall | 0:6bd24cbb88a1 | 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
alindvall | 0:6bd24cbb88a1 | 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
alindvall | 0:6bd24cbb88a1 | 13 | * See the License for the specific language governing permissions and |
alindvall | 0:6bd24cbb88a1 | 14 | * limitations under the License. |
alindvall | 0:6bd24cbb88a1 | 15 | */ |
alindvall | 0:6bd24cbb88a1 | 16 | |
alindvall | 0:6bd24cbb88a1 | 17 | |
alindvall | 0:6bd24cbb88a1 | 18 | #include "mbed.h" |
alindvall | 0:6bd24cbb88a1 | 19 | #include "AppImageViewer.h" |
alindvall | 0:6bd24cbb88a1 | 20 | #include "lpc_swim_font.h" |
alindvall | 0:6bd24cbb88a1 | 21 | #include "lpc_swim_image.h" |
alindvall | 0:6bd24cbb88a1 | 22 | #include "Image.h" |
alindvall | 0:6bd24cbb88a1 | 23 | #include "image_data.h" |
alindvall | 0:6bd24cbb88a1 | 24 | |
alindvall | 0:6bd24cbb88a1 | 25 | /****************************************************************************** |
alindvall | 0:6bd24cbb88a1 | 26 | * Defines and typedefs |
alindvall | 0:6bd24cbb88a1 | 27 | *****************************************************************************/ |
alindvall | 0:6bd24cbb88a1 | 28 | |
alindvall | 0:6bd24cbb88a1 | 29 | #define BOX_SIDE 192 //256 |
alindvall | 0:6bd24cbb88a1 | 30 | |
alindvall | 0:6bd24cbb88a1 | 31 | #define BTN_WIDTH 40 |
alindvall | 0:6bd24cbb88a1 | 32 | #define BTN_HEIGHT 40 |
alindvall | 0:6bd24cbb88a1 | 33 | #define BTN_OFF 20 |
alindvall | 0:6bd24cbb88a1 | 34 | |
alindvall | 0:6bd24cbb88a1 | 35 | /****************************************************************************** |
alindvall | 0:6bd24cbb88a1 | 36 | * Global variables |
alindvall | 0:6bd24cbb88a1 | 37 | *****************************************************************************/ |
alindvall | 0:6bd24cbb88a1 | 38 | |
alindvall | 0:6bd24cbb88a1 | 39 | /****************************************************************************** |
alindvall | 0:6bd24cbb88a1 | 40 | * Private functions |
alindvall | 0:6bd24cbb88a1 | 41 | *****************************************************************************/ |
alindvall | 0:6bd24cbb88a1 | 42 | |
alindvall | 0:6bd24cbb88a1 | 43 | static void buttonClicked(uint32_t x) |
alindvall | 0:6bd24cbb88a1 | 44 | { |
alindvall | 0:6bd24cbb88a1 | 45 | bool* done = (bool*)x; |
alindvall | 0:6bd24cbb88a1 | 46 | *done = true; |
alindvall | 0:6bd24cbb88a1 | 47 | } |
alindvall | 0:6bd24cbb88a1 | 48 | |
alindvall | 0:6bd24cbb88a1 | 49 | void AppImageViewer::draw() |
alindvall | 0:6bd24cbb88a1 | 50 | { |
alindvall | 0:6bd24cbb88a1 | 51 | // Prepare fullscreen |
alindvall | 0:6bd24cbb88a1 | 52 | swim_window_open(_win, |
alindvall | 0:6bd24cbb88a1 | 53 | _disp->width(), _disp->height(), // full size |
alindvall | 0:6bd24cbb88a1 | 54 | (COLOR_T*)_fb1, |
alindvall | 0:6bd24cbb88a1 | 55 | 0,0,_disp->width()-1, _disp->height()-1, // window position and size |
alindvall | 0:6bd24cbb88a1 | 56 | 0, // border |
alindvall | 0:6bd24cbb88a1 | 57 | BLACK, BLACK, BLACK); // colors: pen, backgr, forgr |
alindvall | 0:6bd24cbb88a1 | 58 | |
alindvall | 0:6bd24cbb88a1 | 59 | _btn = new ImageButton(_win->fb, _win->xpmax - BTN_OFF - BTN_WIDTH, _win->ypmax - BTN_OFF - BTN_HEIGHT, BTN_WIDTH, BTN_HEIGHT); |
alindvall | 0:6bd24cbb88a1 | 60 | _btn->loadImages(img_ok, img_size_ok); |
alindvall | 0:6bd24cbb88a1 | 61 | } |
alindvall | 0:6bd24cbb88a1 | 62 | |
alindvall | 0:6bd24cbb88a1 | 63 | void AppImageViewer::load(const char* file) |
alindvall | 0:6bd24cbb88a1 | 64 | { |
alindvall | 0:6bd24cbb88a1 | 65 | Image::ImageData_t pre = {0}; |
alindvall | 0:6bd24cbb88a1 | 66 | |
alindvall | 0:6bd24cbb88a1 | 67 | int res = Image::decode(file, Image::RES_16BIT, &pre); |
alindvall | 0:6bd24cbb88a1 | 68 | if (res == 0) { |
alindvall | 0:6bd24cbb88a1 | 69 | DMBoard::instance().logger()->printf("[ImageLoader] Preparing %s\n", file); |
alindvall | 0:6bd24cbb88a1 | 70 | Image::ImageData_t* data = _mailbox.alloc(osWaitForever); |
alindvall | 0:6bd24cbb88a1 | 71 | if (data != NULL) { |
alindvall | 0:6bd24cbb88a1 | 72 | *data = pre; |
alindvall | 0:6bd24cbb88a1 | 73 | _mailbox.put(data); |
alindvall | 0:6bd24cbb88a1 | 74 | } else { |
alindvall | 0:6bd24cbb88a1 | 75 | DMBoard::instance().logger()->printf("[ImageLoader] Failed to get memory to prepare %s\n", file); |
alindvall | 0:6bd24cbb88a1 | 76 | } |
alindvall | 0:6bd24cbb88a1 | 77 | } |
alindvall | 0:6bd24cbb88a1 | 78 | } |
alindvall | 0:6bd24cbb88a1 | 79 | |
alindvall | 0:6bd24cbb88a1 | 80 | static bool recursiveProcessFS(char* buff, const char* name, unsigned int maxLen, AppImageViewer* app, int depth, int maxDepth) |
alindvall | 0:6bd24cbb88a1 | 81 | { |
alindvall | 0:6bd24cbb88a1 | 82 | if (depth > maxDepth) { |
alindvall | 0:6bd24cbb88a1 | 83 | return true; |
alindvall | 0:6bd24cbb88a1 | 84 | } |
alindvall | 0:6bd24cbb88a1 | 85 | uint32_t len = strlen(buff); |
alindvall | 0:6bd24cbb88a1 | 86 | if (len > 0) { |
alindvall | 0:6bd24cbb88a1 | 87 | if (buff[len - 1] != '/') { |
alindvall | 0:6bd24cbb88a1 | 88 | buff[len++] = '/'; |
alindvall | 0:6bd24cbb88a1 | 89 | buff[len] = '\0'; |
alindvall | 0:6bd24cbb88a1 | 90 | } |
alindvall | 0:6bd24cbb88a1 | 91 | } |
alindvall | 0:6bd24cbb88a1 | 92 | if ((strlen(name) + len) >= maxLen) { |
alindvall | 0:6bd24cbb88a1 | 93 | // avoid memory overwrite due to too long file path |
alindvall | 0:6bd24cbb88a1 | 94 | return true; |
alindvall | 0:6bd24cbb88a1 | 95 | } |
alindvall | 0:6bd24cbb88a1 | 96 | strcat(buff, name); |
alindvall | 0:6bd24cbb88a1 | 97 | len += strlen(name); |
alindvall | 0:6bd24cbb88a1 | 98 | |
alindvall | 0:6bd24cbb88a1 | 99 | DIR *d = opendir(buff); |
alindvall | 0:6bd24cbb88a1 | 100 | bool result = true; // success |
alindvall | 0:6bd24cbb88a1 | 101 | if (d != NULL) { |
alindvall | 0:6bd24cbb88a1 | 102 | struct dirent *p; |
alindvall | 0:6bd24cbb88a1 | 103 | while (result && ((p = readdir(d)) != NULL)) { |
alindvall | 0:6bd24cbb88a1 | 104 | result = recursiveProcessFS(buff, p->d_name, maxLen, app, depth+1, maxDepth); |
alindvall | 0:6bd24cbb88a1 | 105 | buff[len] = '\0'; |
alindvall | 0:6bd24cbb88a1 | 106 | } |
alindvall | 0:6bd24cbb88a1 | 107 | closedir(d); |
alindvall | 0:6bd24cbb88a1 | 108 | } else { |
alindvall | 0:6bd24cbb88a1 | 109 | // a file |
alindvall | 0:6bd24cbb88a1 | 110 | if (len > 3) { |
alindvall | 0:6bd24cbb88a1 | 111 | if ((strncasecmp(buff+len-4, ".bmp", 4)==0) || |
alindvall | 0:6bd24cbb88a1 | 112 | (strncasecmp(buff+len-4, ".png", 4)==0) || |
alindvall | 0:6bd24cbb88a1 | 113 | (strncasecmp(buff+len-4, ".raw", 4)==0)) { |
alindvall | 0:6bd24cbb88a1 | 114 | DMBoard::instance().logger()->printf("[ImageLoader] found %s\n", buff); |
alindvall | 0:6bd24cbb88a1 | 115 | app->load(buff); |
alindvall | 0:6bd24cbb88a1 | 116 | } |
alindvall | 0:6bd24cbb88a1 | 117 | } |
alindvall | 0:6bd24cbb88a1 | 118 | } |
alindvall | 0:6bd24cbb88a1 | 119 | return result; |
alindvall | 0:6bd24cbb88a1 | 120 | } |
alindvall | 0:6bd24cbb88a1 | 121 | |
alindvall | 0:6bd24cbb88a1 | 122 | static void loaderTask(void const* args) |
alindvall | 0:6bd24cbb88a1 | 123 | { |
alindvall | 0:6bd24cbb88a1 | 124 | char* buff = (char*)malloc(512); |
alindvall | 0:6bd24cbb88a1 | 125 | if (buff != NULL) |
alindvall | 0:6bd24cbb88a1 | 126 | { |
alindvall | 0:6bd24cbb88a1 | 127 | DMBoard::instance().logger()->printf("Recursive list of file and folders in /mci/\n"); |
alindvall | 0:6bd24cbb88a1 | 128 | buff[0] = '\0'; |
alindvall | 0:6bd24cbb88a1 | 129 | recursiveProcessFS(buff, "/mci/", 512, (AppImageViewer*)args, 0, 2); |
alindvall | 0:6bd24cbb88a1 | 130 | DMBoard::instance().logger()->printf("Recursive list of file and folders in /usb/\n"); |
alindvall | 0:6bd24cbb88a1 | 131 | buff[0] = '\0'; |
alindvall | 0:6bd24cbb88a1 | 132 | recursiveProcessFS(buff, "/usb/", 512, (AppImageViewer*)args, 0, 2); |
alindvall | 0:6bd24cbb88a1 | 133 | DMBoard::instance().logger()->printf("Recursive list of file and folders in /qspi/\n"); |
alindvall | 0:6bd24cbb88a1 | 134 | buff[0] = '\0'; |
alindvall | 0:6bd24cbb88a1 | 135 | recursiveProcessFS(buff, "/qspi/", 512, (AppImageViewer*)args, 0, 2); |
alindvall | 0:6bd24cbb88a1 | 136 | free(buff); |
alindvall | 0:6bd24cbb88a1 | 137 | } |
alindvall | 0:6bd24cbb88a1 | 138 | DMBoard::instance().logger()->printf("loaderTask done\n"); |
alindvall | 0:6bd24cbb88a1 | 139 | } |
alindvall | 0:6bd24cbb88a1 | 140 | |
alindvall | 0:6bd24cbb88a1 | 141 | /****************************************************************************** |
alindvall | 0:6bd24cbb88a1 | 142 | * Public functions |
alindvall | 0:6bd24cbb88a1 | 143 | *****************************************************************************/ |
alindvall | 0:6bd24cbb88a1 | 144 | |
alindvall | 0:6bd24cbb88a1 | 145 | AppImageViewer::AppImageViewer() : _disp(NULL), _win(NULL), _fb1(NULL), _fb2(NULL), _btn(NULL), _active(0) |
alindvall | 0:6bd24cbb88a1 | 146 | { |
alindvall | 0:6bd24cbb88a1 | 147 | } |
alindvall | 0:6bd24cbb88a1 | 148 | |
alindvall | 0:6bd24cbb88a1 | 149 | AppImageViewer::~AppImageViewer() |
alindvall | 0:6bd24cbb88a1 | 150 | { |
alindvall | 0:6bd24cbb88a1 | 151 | teardown(); |
alindvall | 0:6bd24cbb88a1 | 152 | } |
alindvall | 0:6bd24cbb88a1 | 153 | |
alindvall | 0:6bd24cbb88a1 | 154 | bool AppImageViewer::setup() |
alindvall | 0:6bd24cbb88a1 | 155 | { |
alindvall | 0:6bd24cbb88a1 | 156 | _disp = DMBoard::instance().display(); |
alindvall | 0:6bd24cbb88a1 | 157 | _win = (SWIM_WINDOW_T*)malloc(sizeof(SWIM_WINDOW_T)); |
alindvall | 0:6bd24cbb88a1 | 158 | _fb1 = _disp->allocateFramebuffer(); |
alindvall | 0:6bd24cbb88a1 | 159 | _fb2 = _disp->allocateFramebuffer(); |
alindvall | 0:6bd24cbb88a1 | 160 | |
alindvall | 0:6bd24cbb88a1 | 161 | return (_win != NULL && _fb1 != NULL && _fb2 != NULL); |
alindvall | 0:6bd24cbb88a1 | 162 | } |
alindvall | 0:6bd24cbb88a1 | 163 | |
alindvall | 0:6bd24cbb88a1 | 164 | void AppImageViewer::runToCompletion() |
alindvall | 0:6bd24cbb88a1 | 165 | { |
alindvall | 0:6bd24cbb88a1 | 166 | // Alternative 1: use the calling thread's context to run in |
alindvall | 0:6bd24cbb88a1 | 167 | bool done = false; |
alindvall | 0:6bd24cbb88a1 | 168 | draw(); |
alindvall | 0:6bd24cbb88a1 | 169 | _btn->setAction(buttonClicked, (uint32_t)&done); |
alindvall | 0:6bd24cbb88a1 | 170 | void* oldFB = _disp->swapFramebuffer(_fb1); |
alindvall | 0:6bd24cbb88a1 | 171 | |
alindvall | 0:6bd24cbb88a1 | 172 | _active = 1; |
alindvall | 0:6bd24cbb88a1 | 173 | |
alindvall | 0:6bd24cbb88a1 | 174 | Thread* tLoader = new Thread(loaderTask, this, osPriorityNormal, 8192); |
alindvall | 0:6bd24cbb88a1 | 175 | |
alindvall | 0:6bd24cbb88a1 | 176 | bool first = true; |
alindvall | 0:6bd24cbb88a1 | 177 | Timer t; |
alindvall | 0:6bd24cbb88a1 | 178 | while(!done) { |
alindvall | 0:6bd24cbb88a1 | 179 | osEvent evt = _mailbox.get(1000); |
alindvall | 0:6bd24cbb88a1 | 180 | if (evt.status == osEventMail) { |
alindvall | 0:6bd24cbb88a1 | 181 | COLOR_T* fb; |
alindvall | 0:6bd24cbb88a1 | 182 | if (_active == 1) { |
alindvall | 0:6bd24cbb88a1 | 183 | // render on the second frame buffer |
alindvall | 0:6bd24cbb88a1 | 184 | fb = (COLOR_T*)_fb2; |
alindvall | 0:6bd24cbb88a1 | 185 | } else { |
alindvall | 0:6bd24cbb88a1 | 186 | // render on the first frame buffer |
alindvall | 0:6bd24cbb88a1 | 187 | fb = (COLOR_T*)_fb1; |
alindvall | 0:6bd24cbb88a1 | 188 | } |
alindvall | 0:6bd24cbb88a1 | 189 | _win->fb = fb; |
alindvall | 0:6bd24cbb88a1 | 190 | Image::ImageData_t* data = (Image::ImageData_t*)evt.value.p; |
alindvall | 0:6bd24cbb88a1 | 191 | swim_put_image_xy(_win, (COLOR_T*)data->pixels, data->width, data->height, _disp->width()-data->width, _disp->height()-data->height); |
alindvall | 0:6bd24cbb88a1 | 192 | free(data->pointerToFree); |
alindvall | 0:6bd24cbb88a1 | 193 | _mailbox.free(data); |
alindvall | 0:6bd24cbb88a1 | 194 | if (first) { |
alindvall | 0:6bd24cbb88a1 | 195 | first = false; |
alindvall | 0:6bd24cbb88a1 | 196 | t.start(); |
alindvall | 0:6bd24cbb88a1 | 197 | } else { |
alindvall | 0:6bd24cbb88a1 | 198 | while (t.read_ms() < 2000) { |
alindvall | 0:6bd24cbb88a1 | 199 | Thread::wait(100); |
alindvall | 0:6bd24cbb88a1 | 200 | } |
alindvall | 0:6bd24cbb88a1 | 201 | } |
alindvall | 0:6bd24cbb88a1 | 202 | _disp->setFramebuffer(fb); |
alindvall | 0:6bd24cbb88a1 | 203 | _active = (_active == 1 ? 2 : 1); |
alindvall | 0:6bd24cbb88a1 | 204 | t.reset(); |
alindvall | 0:6bd24cbb88a1 | 205 | } else if (tLoader->get_state() == Thread::Inactive) { |
alindvall | 0:6bd24cbb88a1 | 206 | // No more images in the queue and the loader thread |
alindvall | 0:6bd24cbb88a1 | 207 | // has completed its search |
alindvall | 0:6bd24cbb88a1 | 208 | break; |
alindvall | 0:6bd24cbb88a1 | 209 | } |
alindvall | 0:6bd24cbb88a1 | 210 | } |
alindvall | 0:6bd24cbb88a1 | 211 | |
alindvall | 0:6bd24cbb88a1 | 212 | delete tLoader; |
alindvall | 0:6bd24cbb88a1 | 213 | |
alindvall | 0:6bd24cbb88a1 | 214 | // The button must be drawn on the current framebuffer |
alindvall | 0:6bd24cbb88a1 | 215 | _btn->draw(_win->fb); |
alindvall | 0:6bd24cbb88a1 | 216 | |
alindvall | 0:6bd24cbb88a1 | 217 | // Wait for touches, but the AppLauncher is already listening |
alindvall | 0:6bd24cbb88a1 | 218 | // for new touch event and sends a signal to its thread which |
alindvall | 0:6bd24cbb88a1 | 219 | // is the same as runs this function so it is enough to wait |
alindvall | 0:6bd24cbb88a1 | 220 | // for that signal. |
alindvall | 0:6bd24cbb88a1 | 221 | TouchPanel* touch = DMBoard::instance().touchPanel(); |
alindvall | 0:6bd24cbb88a1 | 222 | touch_coordinate_t coord; |
alindvall | 0:6bd24cbb88a1 | 223 | while(!done) { |
alindvall | 0:6bd24cbb88a1 | 224 | Thread::signal_wait(0x1); |
alindvall | 0:6bd24cbb88a1 | 225 | if (touch->read(coord) == TouchPanel::TouchError_Ok) { |
alindvall | 0:6bd24cbb88a1 | 226 | if (_btn->handle(coord.x, coord.y, coord.z > 0)) { |
alindvall | 0:6bd24cbb88a1 | 227 | _btn->draw(); |
alindvall | 0:6bd24cbb88a1 | 228 | } |
alindvall | 0:6bd24cbb88a1 | 229 | } |
alindvall | 0:6bd24cbb88a1 | 230 | } |
alindvall | 0:6bd24cbb88a1 | 231 | |
alindvall | 0:6bd24cbb88a1 | 232 | // User has clicked the button, restore the original FB |
alindvall | 0:6bd24cbb88a1 | 233 | _disp->swapFramebuffer(oldFB); |
alindvall | 0:6bd24cbb88a1 | 234 | swim_window_close(_win); |
alindvall | 0:6bd24cbb88a1 | 235 | } |
alindvall | 0:6bd24cbb88a1 | 236 | |
alindvall | 0:6bd24cbb88a1 | 237 | bool AppImageViewer::teardown() |
alindvall | 0:6bd24cbb88a1 | 238 | { |
alindvall | 0:6bd24cbb88a1 | 239 | if (_win != NULL) { |
alindvall | 0:6bd24cbb88a1 | 240 | free(_win); |
alindvall | 0:6bd24cbb88a1 | 241 | _win = NULL; |
alindvall | 0:6bd24cbb88a1 | 242 | } |
alindvall | 0:6bd24cbb88a1 | 243 | if (_fb1 != NULL) { |
alindvall | 0:6bd24cbb88a1 | 244 | free(_fb1); |
alindvall | 0:6bd24cbb88a1 | 245 | _fb1 = NULL; |
alindvall | 0:6bd24cbb88a1 | 246 | } |
alindvall | 0:6bd24cbb88a1 | 247 | if (_fb2 != NULL) { |
alindvall | 0:6bd24cbb88a1 | 248 | free(_fb2); |
alindvall | 0:6bd24cbb88a1 | 249 | _fb2 = NULL; |
alindvall | 0:6bd24cbb88a1 | 250 | } |
alindvall | 0:6bd24cbb88a1 | 251 | if (_btn != NULL) { |
alindvall | 0:6bd24cbb88a1 | 252 | delete _btn; |
alindvall | 0:6bd24cbb88a1 | 253 | _btn = NULL; |
alindvall | 0:6bd24cbb88a1 | 254 | } |
alindvall | 0:6bd24cbb88a1 | 255 | return true; |
alindvall | 0:6bd24cbb88a1 | 256 | } |
alindvall | 0:6bd24cbb88a1 | 257 | |
alindvall | 0:6bd24cbb88a1 | 258 | |
alindvall | 0:6bd24cbb88a1 | 259 |