A36 PCB1.1 软件工程整理
This commit is contained in:
97
fr3092_lvglcode/lv_drivers/gtkdrv/README.md
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97
fr3092_lvglcode/lv_drivers/gtkdrv/README.md
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# Add GTK under Linux in Eclipse
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## Install GDK
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```
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sudo apt-get install libgtk-3-dev
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sudo apt-get install libglib2.0-dev
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```
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## Add GTK include paths and libraries
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In "Project properties > C/C++ Build > Settings" set the followings:
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- "Cross GCC Compiler > Command line pattern"
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- Add ` ${gtk+-cflags}` to the end (add a space between the last command and this)
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- "Cross GCC Compiler > Includes"
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- /usr/include/glib-2.0
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- /usr/include/gtk-3.0
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- /usr/include/pango-1.0
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- /usr/include/cairo
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- /usr/include/gdk-pixbuf-2.0
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- /usr/include/atk-1.0
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- "Cross GCC Linker > Command line pattern"
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- Add ` ${gtk+-libs}` to the end (add a space between the last command and this)
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- "Cross GCC Linker > Libraries"
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- Add `pthread`
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- In "C/C++ Build > Build variables"
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- Configuration: [All Configuration]
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- Add
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- Variable name: `gtk+-cflags`
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- Type: `String`
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- Value: `pkg-config --cflags gtk+-3.0`
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- Variable name: `gtk+-libs`
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- Type: `String`
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- Value: `pkg-config --libs gtk+-3.0`
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## Init GDK in LVGL
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1. In `main.c` `#incude "lv_drivers/gdkdrv/gdkdrv.h"`
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2. Enable the GTK driver in `lv_drv_conf.h` with `USE_GTK 1`
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3. After `lv_init()` call `gdkdrv_init()`;
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4. Add a display:
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```c
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static lv_disp_buf_t disp_buf1;
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static lv_color_t buf1_1[LV_HOR_RES_MAX * LV_VER_RES_MAX];
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lv_disp_buf_init(&disp_buf1, buf1_1, NULL, LV_HOR_RES_MAX * LV_VER_RES_MAX);
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/*Create a display*/
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lv_disp_drv_t disp_drv;
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lv_disp_drv_init(&disp_drv);
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disp_drv.buffer = &disp_buf1;
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disp_drv.flush_cb = gtkdrv_flush_cb;
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```
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5. Add mouse:
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```c
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lv_indev_drv_t indev_drv_mouse;
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lv_indev_drv_init(&indev_drv_mouse);
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indev_drv_mouse.type = LV_INDEV_TYPE_POINTER;
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```
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6. Akk keyboard:
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```c
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lv_indev_drv_t indev_drv_kb;
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lv_indev_drv_init(&indev_drv_kb);
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indev_drv_kb.type = LV_INDEV_TYPE_KEYPAD;
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indev_drv_kb.read_cb = lv_keyboard_read_cb;
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lv_indev_drv_register(&indev_drv_kb);
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```
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7. Configure tick in `lv_conf.h`
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```c
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#define LV_TICK_CUSTOM 1
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#if LV_TICK_CUSTOM == 1
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#define LV_TICK_CUSTOM_INCLUDE "lv_drivers/gtkdrv/gtkdrv.h" /*Header for the sys time function*/
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#define LV_TICK_CUSTOM_SYS_TIME_EXPR (gtkdrv_tick_get()) /*Expression evaluating to current systime in ms*/
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#endif /*LV_TICK_CUSTOM*/
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```
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8. Be sure `LV_COLOR_DEPTH` is `32` in `lv_conf.h`
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## Run in a window
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Build and Run to "normally" run the UI in a window
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## Run in browser
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With the help of `Broadway` the UI can be easily shown via a browser.
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1. Open Terminal and start *Broadway* with `broadwayd :5`. Leave the terminal running.
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2. Navigate to where eclipse created the binary executable (my_project/Debug) and open a terminal in that folder.
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In this terminal run `GDK_BACKEND=broadway BROADWAY_DISPLAY=:5 ./my_executable` (replace *my_executable* wih name of your executable)
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3. Open a web browser and go to `http://localhost:8085/`
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BIN
fr3092_lvglcode/lv_drivers/gtkdrv/broadway.png
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BIN
fr3092_lvglcode/lv_drivers/gtkdrv/broadway.png
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Binary file not shown.
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After Width: | Height: | Size: 28 KiB |
327
fr3092_lvglcode/lv_drivers/gtkdrv/gtkdrv.c
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327
fr3092_lvglcode/lv_drivers/gtkdrv/gtkdrv.c
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/**
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* @file gtk.c
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*
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*/
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/*********************
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* INCLUDES
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*********************/
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#include "gtkdrv.h"
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#if USE_GTK
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#define _DEFAULT_SOURCE /* needed for usleep() */
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#include <stdlib.h>
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#include <unistd.h>
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#include <gtk/gtk.h>
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#include <gtk/gtkx.h>
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#include <pthread.h>
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#include <time.h>
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#include <sys/time.h>
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/*********************
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* DEFINES
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*********************/
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/**********************
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* TYPEDEFS
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**********************/
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/**********************
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* STATIC PROTOTYPES
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**********************/
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static void gtkdrv_handler(void * p);
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static gboolean mouse_pressed(GtkWidget *widget, GdkEventButton *event,
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gpointer user_data);
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static gboolean mouse_released(GtkWidget *widget, GdkEventButton *event,
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gpointer user_data);
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static gboolean mouse_motion(GtkWidget *widget, GdkEventMotion *event,
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gpointer user_data);
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static gboolean keyboard_press(GtkWidget *widget, GdkEventKey *event,
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gpointer user_data);
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static gboolean keyboard_release(GtkWidget *widget, GdkEventKey *event,
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gpointer user_data);
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static void quit_handler(void);
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/**********************
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* STATIC VARIABLES
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**********************/
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static GtkWidget *window;
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static GtkWidget *event_box;
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static GtkWidget *output_image;
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static GdkPixbuf *pixbuf;
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static unsigned char run_gtk;
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static lv_coord_t mouse_x;
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static lv_coord_t mouse_y;
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static lv_indev_state_t mouse_btn = LV_INDEV_STATE_REL;
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static lv_key_t last_key;
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static lv_indev_state_t last_key_state;
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static uint8_t fb[LV_HOR_RES_MAX * LV_VER_RES_MAX * 3];
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/**********************
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* MACROS
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**********************/
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/**********************
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* GLOBAL FUNCTIONS
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**********************/
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void gtkdrv_init(void)
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{
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// Init GTK
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gtk_init(NULL, NULL);
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/* Or just set up the widgets in code */
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window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
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gtk_window_set_default_size(GTK_WINDOW(window), LV_HOR_RES_MAX, LV_VER_RES_MAX);
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gtk_window_set_resizable (GTK_WINDOW(window), FALSE);
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output_image = gtk_image_new();
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event_box = gtk_event_box_new (); // Use event_box around image, otherwise mouse position output in broadway is offset
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gtk_container_add(GTK_CONTAINER (event_box), output_image);
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gtk_container_add(GTK_CONTAINER (window), event_box);
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gtk_widget_add_events(event_box, GDK_BUTTON_PRESS_MASK);
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gtk_widget_add_events(event_box, GDK_SCROLL_MASK);
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gtk_widget_add_events(event_box, GDK_POINTER_MOTION_MASK);
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gtk_widget_add_events(window, GDK_KEY_PRESS_MASK);
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g_signal_connect(window, "destroy", G_CALLBACK(quit_handler), NULL);
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g_signal_connect(event_box, "button-press-event", G_CALLBACK(mouse_pressed), NULL);
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g_signal_connect(event_box, "button-release-event", G_CALLBACK(mouse_released), NULL);
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g_signal_connect(event_box, "motion-notify-event", G_CALLBACK(mouse_motion), NULL);
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g_signal_connect(window, "key_press_event", G_CALLBACK(keyboard_press), NULL);
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g_signal_connect(window, "key_release_event", G_CALLBACK(keyboard_release), NULL);
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gtk_widget_show_all(window);
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pixbuf = gdk_pixbuf_new_from_data((guchar*)fb, GDK_COLORSPACE_RGB, false, 8, LV_HOR_RES_MAX, LV_VER_RES_MAX, LV_HOR_RES_MAX * 3, NULL, NULL);
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if (pixbuf == NULL)
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{
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fprintf(stderr, "Creating pixbuf failed\n");
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return;
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}
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pthread_t thread;
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pthread_create(&thread, NULL, gtkdrv_handler, NULL);
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}
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/*Set in lv_conf.h as `LV_TICK_CUSTOM_SYS_TIME_EXPR`*/
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uint32_t gtkdrv_tick_get(void)
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{
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static uint64_t start_ms = 0;
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if(start_ms == 0) {
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struct timeval tv_start;
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gettimeofday(&tv_start, NULL);
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start_ms = (tv_start.tv_sec * 1000000 + tv_start.tv_usec) / 1000;
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}
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struct timeval tv_now;
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gettimeofday(&tv_now, NULL);
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uint64_t now_ms;
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now_ms = (tv_now.tv_sec * 1000000 + tv_now.tv_usec) / 1000;
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uint32_t time_ms = now_ms - start_ms;
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return time_ms;
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}
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/**
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* Flush a buffer to the marked area
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* @param drv pointer to driver where this function belongs
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* @param area an area where to copy `color_p`
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* @param color_p an array of pixel to copy to the `area` part of the screen
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*/
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void gtkdrv_flush_cb(lv_disp_drv_t * disp_drv, const lv_area_t * area, lv_color_t * color_p)
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{
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lv_coord_t hres = disp_drv->rotated == 0 ? disp_drv->hor_res : disp_drv->ver_res;
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lv_coord_t vres = disp_drv->rotated == 0 ? disp_drv->ver_res : disp_drv->hor_res;
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/*Return if the area is out the screen*/
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if(area->x2 < 0 || area->y2 < 0 || area->x1 > hres - 1 || area->y1 > vres - 1) {
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lv_disp_flush_ready(disp_drv);
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return;
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}
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int32_t y;
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int32_t x;
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int32_t p;
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for(y = area->y1; y <= area->y2 && y < disp_drv->ver_res; y++) {
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p = (y * disp_drv->hor_res + area->x1) * 3;
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for(x = area->x1; x <= area->x2 && x < disp_drv->hor_res; x++) {
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fb[p] = color_p->ch.red;
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fb[p + 1] = color_p->ch.green;
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fb[p + 2] = color_p->ch.blue;
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p += 3;
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color_p ++;
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}
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}
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/*IMPORTANT! It must be called to tell the system the flush is ready*/
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lv_disp_flush_ready(disp_drv);
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}
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bool gtkdrv_mouse_read_cb(lv_indev_drv_t * drv, lv_indev_data_t * data)
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{
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data->point.x = mouse_x;
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data->point.y = mouse_y;
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data->state = mouse_btn;
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return false;
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}
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bool gtkdrv_keyboard_read_cb(lv_indev_drv_t * drv, lv_indev_data_t * data)
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{
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data->key = last_key;
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data->state = last_key_state;
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return false;
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}
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/**********************
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* STATIC FUNCTIONS
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**********************/
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static void gtkdrv_handler(void * p)
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{
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while(1) {
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gtk_image_set_from_pixbuf(GTK_IMAGE(output_image), pixbuf); // Test code
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/* Real code should: call gdk_pixbuf_new_from_data () with pointer to frame buffer
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generated by LVGL. See
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https://developer.gnome.org/gdk-pixbuf/2.36/gdk-pixbuf-Image-Data-in-Memory.html
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*/
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gtk_main_iteration_do(FALSE);
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/* Explicitly calling each iteration of the GTK main loop allows LVGL to sync frame
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buffer updates with GTK. It is perhaps also possible to just call gtk_main(), but not
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sure how sync will work then
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*/
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usleep(1*1000);
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}
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}
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static gboolean mouse_pressed(GtkWidget *widget, GdkEventButton *event,
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gpointer user_data)
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{
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mouse_btn = LV_INDEV_STATE_PR;
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// Important, if this function returns TRUE the window cannot be moved around inside the browser
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// when using broadway
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return FALSE;
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}
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static gboolean mouse_released(GtkWidget *widget, GdkEventButton *event,
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gpointer user_data)
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{
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mouse_btn = LV_INDEV_STATE_REL;
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// Important, if this function returns TRUE the window cannot be moved around inside the browser
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// when using broadway
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return FALSE;
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}
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/*****************************************************************************/
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static gboolean mouse_motion(GtkWidget *widget, GdkEventMotion *event,
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gpointer user_data)
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{
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mouse_x = event->x;
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mouse_y = event->y;
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// Important, if this function returns TRUE the window cannot be moved around inside the browser
|
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// when using broadway
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return FALSE;
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||||
}
|
||||
|
||||
|
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static gboolean keyboard_press(GtkWidget *widget, GdkEventKey *event,
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gpointer user_data)
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{
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uint32_t ascii_key = event->keyval;
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/*Remap some key to LV_KEY_... to manage groups*/
|
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switch(event->keyval) {
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case GDK_KEY_rightarrow:
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case GDK_KEY_Right:
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ascii_key = LV_KEY_RIGHT;
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break;
|
||||
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||||
case GDK_KEY_leftarrow:
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case GDK_KEY_Left:
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ascii_key = LV_KEY_LEFT;
|
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break;
|
||||
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case GDK_KEY_uparrow:
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case GDK_KEY_Up:
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ascii_key = LV_KEY_UP;
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break;
|
||||
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case GDK_KEY_downarrow:
|
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case GDK_KEY_Down:
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ascii_key = LV_KEY_DOWN;
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break;
|
||||
|
||||
case GDK_KEY_Escape:
|
||||
ascii_key = LV_KEY_ESC;
|
||||
break;
|
||||
|
||||
case GDK_KEY_BackSpace:
|
||||
ascii_key = LV_KEY_BACKSPACE;
|
||||
break;
|
||||
|
||||
case GDK_KEY_Delete:
|
||||
ascii_key = LV_KEY_DEL;
|
||||
break;
|
||||
|
||||
case GDK_KEY_Tab:
|
||||
ascii_key = LV_KEY_NEXT;
|
||||
break;
|
||||
|
||||
case GDK_KEY_KP_Enter:
|
||||
case GDK_KEY_Return:
|
||||
case '\r':
|
||||
ascii_key = LV_KEY_ENTER;
|
||||
break;
|
||||
|
||||
default:
|
||||
break;
|
||||
|
||||
}
|
||||
|
||||
last_key = ascii_key;
|
||||
last_key_state = LV_INDEV_STATE_PR;
|
||||
// For other codes refer to https://developer.gnome.org/gdk3/stable/gdk3-Event-Structures.html#GdkEventKey
|
||||
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
static gboolean keyboard_release(GtkWidget *widget, GdkEventKey *event,
|
||||
gpointer user_data)
|
||||
{
|
||||
last_key = 0;
|
||||
last_key_state = LV_INDEV_STATE_REL;
|
||||
// For other codes refer to https://developer.gnome.org/gdk3/stable/gdk3-Event-Structures.html#GdkEventKey
|
||||
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
static void quit_handler(void)
|
||||
{
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||||
exit(0);
|
||||
run_gtk = FALSE;
|
||||
}
|
||||
#endif /*USE_GTK*/
|
||||
|
||||
59
fr3092_lvglcode/lv_drivers/gtkdrv/gtkdrv.h
Normal file
59
fr3092_lvglcode/lv_drivers/gtkdrv/gtkdrv.h
Normal file
@ -0,0 +1,59 @@
|
||||
/**
|
||||
* @file gtkdrv
|
||||
*
|
||||
*/
|
||||
|
||||
#ifndef GTKDRV_H
|
||||
#define GTKDRV_H
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C" {
|
||||
#endif
|
||||
|
||||
/*********************
|
||||
* INCLUDES
|
||||
*********************/
|
||||
#ifndef LV_DRV_NO_CONF
|
||||
#ifdef LV_CONF_INCLUDE_SIMPLE
|
||||
#include "lv_drv_conf.h"
|
||||
#else
|
||||
#include "../../lv_drv_conf.h"
|
||||
#endif
|
||||
#endif
|
||||
|
||||
#if USE_GTK
|
||||
|
||||
#ifdef LV_LVGL_H_INCLUDE_SIMPLE
|
||||
#include "lvgl.h"
|
||||
#else
|
||||
#include "lvgl/lvgl.h"
|
||||
#endif
|
||||
|
||||
|
||||
/*********************
|
||||
* DEFINES
|
||||
*********************/
|
||||
|
||||
/**********************
|
||||
* TYPEDEFS
|
||||
**********************/
|
||||
|
||||
/**********************
|
||||
* GLOBAL PROTOTYPES
|
||||
**********************/
|
||||
void gtkdrv_init(void);
|
||||
uint32_t gtkdrv_tick_get(void);
|
||||
void gtkdrv_flush_cb(lv_disp_drv_t * disp_drv, const lv_area_t * area, lv_color_t * color_p);
|
||||
bool gtkdrv_mouse_read_cb(lv_indev_drv_t * drv, lv_indev_data_t * data);
|
||||
bool gtkdrv_keyboard_read_cb(lv_indev_drv_t * drv, lv_indev_data_t * data);
|
||||
/**********************
|
||||
* MACROS
|
||||
**********************/
|
||||
|
||||
#endif /*USE_GTK*/
|
||||
|
||||
#ifdef __cplusplus
|
||||
} /* extern "C" */
|
||||
#endif
|
||||
|
||||
#endif /* GTKDRV_H */
|
||||
Reference in New Issue
Block a user