init lvgl code

LVGL.Simulator/lv_drivers/sdl/sdl_gpu.h

@@ -0,0 +1,123 @@
+/**
+ * @file sdl_gpu.h
+ *
+ */
+
+#ifndef SDL_GPU_H
+#define SDL_GPU_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_SDL_GPU
+
+#ifdef LV_LVGL_H_INCLUDE_SIMPLE
+#include "lvgl.h"
+#else
+#include "lvgl/lvgl.h"
+#endif
+
+/*********************
+ *      DEFINES
+ *********************/
+
+/**********************
+ *      TYPEDEFS
+ **********************/
+
+/**********************
+ * GLOBAL PROTOTYPES
+ **********************/
+
+/**
+ * Initialize SDL to be used as display, mouse and mouse wheel drivers.
+ */
+void sdl_init(void);
+
+/**
+ * IMPORTANT: Initialize draw buffer with one `SDL_Texture`.
+ * Use this instead of `lv_disp_draw_buf_init` because `buf1` isn't a real
+ * pixels buffer.
+ */
+void sdl_gpu_disp_draw_buf_init(lv_disp_draw_buf_t *draw_buf);
+
+/**
+ * IMPORTANT: Initialize display driver with `SDL_Renderer` instance.
+ * Use this instead of `lv_gpu_disp_drv_init` because `user_data` needs to
+ * be pointing to the renderer.
+ */
+void sdl_gpu_disp_drv_init(lv_disp_drv_t *driver);
+
+/**
+ * Flush a buffer to the marked area
+ * @param disp_drv pointer to driver where this function belongs
+ * @param area an area where to copy `color_p`
+ * @param color_p an array of pixels to copy to the `area` part of the screen
+ */
+void sdl_display_flush(lv_disp_drv_t * disp_drv, const lv_area_t * area, lv_color_t * color_p);
+
+/**
+ * Flush a buffer to the marked area
+ * @param disp_drv pointer to driver where this function belongs
+ * @param area an area where to copy `color_p`
+ * @param color_p an array of pixels to copy to the `area` part of the screen
+ */
+void sdl_display_flush2(lv_disp_drv_t * disp_drv, const lv_area_t * area, lv_color_t * color_p);
+
+/**
+ * Resize SDL display
+ * @param disp pointer to lvgl display object
+ * @param width new display width in pixels
+ * @param height new display height in pixels
+ */
+void sdl_display_resize(lv_disp_t *disp, int width, int height);
+
+/**
+ * Get the current position and state of the mouse
+ * @param indev_drv pointer to the related input device driver
+ * @param data store the mouse data here
+ */
+void sdl_mouse_read(lv_indev_drv_t * indev_drv, lv_indev_data_t * data);
+
+/**
+ * Get encoder (i.e. mouse wheel) ticks difference and pressed state
+ * @param indev_drv pointer to the related input device driver
+ * @param data store the read data here
+ */
+void sdl_mousewheel_read(lv_indev_drv_t * indev_drv, lv_indev_data_t * data);
+
+/**
+ * Get input from the keyboard.
+ * @param indev_drv pointer to the related input device driver
+ * @param data store the red data here
+ */
+void sdl_keyboard_read(lv_indev_drv_t * indev_drv, lv_indev_data_t * data);
+
+/*For backward compatibility. Will be removed.*/
+#define monitor_init sdl_init
+#define monitor_flush sdl_display_flush
+#define monitor_flush2 sdl_display_flush2
+
+/**********************
+ *      MACROS
+ **********************/
+
+#endif /* USE_SDL_GPU */
+
+#ifdef __cplusplus
+} /* extern "C" */
+#endif
+
+#endif /* SDL_GPU_H */