小忍者项目相关文件上传

2024-02-05 16:51:37 +08:00
commit 48911e3125
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--- a/MXC-A36/xrz/lv_drivers/wayland/README.md
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+# Wayland display and input driver
+
+Wayland display and input driver, with support for keyboard, mouse and touchscreen.
+Keyboard support is based on libxkbcommon.
+
+> NOTE: current implementation only supports `wl_shell` shell with no decorations.
+
+
+## Install headers and libraries
+
+### Ubuntu
+
+```
+sudo apt-get install libwayland-dev libxkbcommon-dev
+```
+
+### Fedora
+
+```
+sudo dnf install wayland-devel libxkbcommon-devel
+```
+
+
+## Build configuration under Eclipse
+
+In "Project properties > C/C++ Build > Settings" set the followings:
+
+- "Cross GCC Compiler > Command line pattern"
+  - Add ` ${wayland-cflags}` and ` ${xkbcommon-cflags}` to the end (add a space between the last command and this)
+
+
+- "Cross GCC Linker > Command line pattern"
+  - Add ` ${wayland-libs}` and ` ${xkbcommon-libs}`  to the end (add a space between the last command and this)
+
+
+- "Cross GCC Linker > Libraries"
+  - Add `pthread`
+
+
+- In "C/C++ Build > Build variables"
+  - Configuration: [All Configuration]
+
+  - Add
+    - Variable name: `wayland-cflags`
+      - Type: `String`
+      - Value: `pkg-config --cflags wayland-client`
+    - Variable name: `wayland-libs`
+      - Type: `String`
+      - Value: `pkg-config --libs wayland-client`
+    - Variable name: `xkbcommon-cflags`
+      - Type: `String`
+      - Value: `pkg-config --cflags xkbcommon`
+    - Variable name: `xkbcommon-libs`
+      - Type: `String`
+      - Value: `pkg-config --libs xkbcommon`
+
+
+## Init Wayland in LVGL
+
+1. In `main.c` `#incude "lv_drivers/wayland/wayland.h"`
+2. Enable the Wayland driver in `lv_drv_conf.h` with `USE_WAYLAND 1`
+3. `LV_COLOR_DEPTH` should be set either to `32` or `16` in `lv_conf.h`;
+   support for `8` and `1` depends on target platform.
+4. After `lv_init()` call `wayland_init()`
+5. Before `lv_deinit()` call `wayland_deinit()`
+6. Add a display:
+```c
+  static lv_disp_buf_t disp_buf1;
+  static lv_color_t buf1[LV_HOR_RES_MAX * LV_VER_RES_MAX];
+  lv_disp_buf_init(&disp_buf1, buf1, NULL, LV_HOR_RES_MAX * LV_VER_RES_MAX);
+
+  /* Create a display */
+  lv_disp_drv_t disp_drv;
+  lv_disp_drv_init(&disp_drv);
+  disp_drv.buffer = &disp_buf1;
+  disp_drv.flush_cb = wayland_flush;
+```
+7. Add keyboard:
+```c
+  lv_indev_drv_t indev_drv_kb;
+  lv_indev_drv_init(&indev_drv_kb);
+  indev_drv_kb.type = LV_INDEV_TYPE_KEYPAD;
+  indev_drv_kb.read_cb = wayland_keyboard_read;
+  lv_indev_drv_register(&indev_drv_kb);
+```
+8. Add touchscreen:
+```c
+  lv_indev_drv_t indev_drv_touch;
+  lv_indev_drv_init(&indev_drv_touch);
+  indev_drv_touch.type = LV_INDEV_TYPE_POINTER;
+  indev_drv_touch.read_cb = wayland_touch_read;
+  lv_indev_drv_register(&indev_drv_touch);
+```
+9. Add mouse:
+```c
+  lv_indev_drv_t indev_drv_mouse;
+  lv_indev_drv_init(&indev_drv_mouse);
+  indev_drv_mouse.type = LV_INDEV_TYPE_POINTER;
+  indev_drv_mouse.read_cb = wayland_pointer_read;
+  lv_indev_drv_register(&indev_drv_mouse);
+```
+10. Add mouse wheel as encoder:
+```c
+  lv_indev_drv_t indev_drv_mousewheel;
+  lv_indev_drv_init(&indev_drv_mousewheel);
+  indev_drv_mousewheel.type = LV_INDEV_TYPE_ENCODER;
+  indev_drv_mousewheel.read_cb = wayland_pointeraxis_read;
+  lv_indev_drv_register(&indev_drv_mousewheel);
+```