1 /** 2 * @file lv_display_private.h 3 * 4 */ 5 6 #ifndef LV_DISPLAY_PRIVATE_H 7 #define LV_DISPLAY_PRIVATE_H 8 9 #ifdef __cplusplus 10 extern "C" { 11 #endif 12 13 /********************* 14 * INCLUDES 15 *********************/ 16 #include "../misc/lv_types.h" 17 #include "../core/lv_obj.h" 18 #include "../draw/lv_draw.h" 19 #include "lv_display.h" 20 21 #if LV_USE_SYSMON 22 #include "../others/sysmon/lv_sysmon_private.h" 23 #endif 24 25 /********************* 26 * DEFINES 27 *********************/ 28 #ifndef LV_INV_BUF_SIZE 29 #define LV_INV_BUF_SIZE 32 /**< Buffer size for invalid areas */ 30 #endif 31 32 /********************** 33 * TYPEDEFS 34 **********************/ 35 36 struct _lv_display_t { 37 38 /*--------------------- 39 * Resolution 40 *--------------------*/ 41 42 /** Horizontal resolution.*/ 43 int32_t hor_res; 44 45 /** Vertical resolution.*/ 46 int32_t ver_res; 47 48 /** Horizontal resolution of the full / physical display. Set to -1 for fullscreen mode.*/ 49 int32_t physical_hor_res; 50 51 /** Vertical resolution of the full / physical display. Set to -1 for fullscreen mode.*/ 52 int32_t physical_ver_res; 53 54 /** Horizontal offset from the full / physical display. Set to 0 for fullscreen mode.*/ 55 int32_t offset_x; 56 57 /** Vertical offset from the full / physical display. Set to 0 for fullscreen mode.*/ 58 int32_t offset_y; 59 60 /** DPI (dot per inch) of the display. Default value is `LV_DPI_DEF`.*/ 61 uint32_t dpi; 62 63 /*--------------------- 64 * Buffering 65 *--------------------*/ 66 lv_draw_buf_t * buf_1; 67 lv_draw_buf_t * buf_2; 68 69 /** Internal, used by the library*/ 70 lv_draw_buf_t * buf_act; 71 72 /** MANDATORY: Write the internal buffer (draw_buf) to the display. 'lv_display_flush_ready()' has to be 73 * called when finished*/ 74 lv_display_flush_cb_t flush_cb; 75 76 /** 77 * Used to wait while flushing is ready. 78 * It can do any complex logic to wait, including semaphores, mutexes, polling flags, etc. 79 * If not set `flushing` flag is used which can be cleared with `lv_display_flush_ready()` */ 80 lv_display_flush_wait_cb_t flush_wait_cb; 81 82 /** 1: flushing is in progress. (It can't be a bit field because when it's cleared from IRQ 83 * Read-Modify-Write issue might occur) */ 84 volatile int flushing; 85 86 /** 1: It was the last chunk to flush. (It can't be a bit field because when it's cleared 87 * from IRQ Read-Modify-Write issue might occur) */ 88 volatile int flushing_last; 89 volatile uint32_t last_area : 1; /**< 1: last area is being rendered */ 90 volatile uint32_t last_part : 1; /**< 1: last part of the current area is being rendered */ 91 92 lv_display_render_mode_t render_mode; 93 uint32_t antialiasing : 1; /**< 1: anti-aliasing is enabled on this display.*/ 94 uint32_t tile_cnt : 8; /**< Divide the display buffer into these number of tiles */ 95 96 97 /** 1: The current screen rendering is in progress*/ 98 uint32_t rendering_in_progress : 1; 99 100 lv_color_format_t color_format; 101 102 /** Invalidated (marked to redraw) areas*/ 103 lv_area_t inv_areas[LV_INV_BUF_SIZE]; 104 uint8_t inv_area_joined[LV_INV_BUF_SIZE]; 105 uint32_t inv_p; 106 int32_t inv_en_cnt; 107 108 /** Double buffer sync areas (redrawn during last refresh) */ 109 lv_ll_t sync_areas; 110 111 lv_draw_buf_t _static_buf1; /**< Used when user pass in a raw buffer as display draw buffer */ 112 lv_draw_buf_t _static_buf2; 113 /*--------------------- 114 * Layer 115 *--------------------*/ 116 lv_layer_t * layer_head; 117 void (*layer_init)(lv_display_t * disp, lv_layer_t * layer); 118 void (*layer_deinit)(lv_display_t * disp, lv_layer_t * layer); 119 120 /*--------------------- 121 * Screens 122 *--------------------*/ 123 124 /** Screens of the display*/ 125 lv_obj_t ** screens; /**< Array of screen objects.*/ 126 lv_obj_t * sys_layer; /**< @see lv_display_get_layer_sys*/ 127 lv_obj_t * top_layer; /**< @see lv_display_get_layer_top*/ 128 lv_obj_t * act_scr; /**< Currently active screen on this display*/ 129 lv_obj_t * bottom_layer;/**< @see lv_display_get_layer_bottom*/ 130 lv_obj_t * prev_scr; /**< Previous screen. Used during screen animations*/ 131 lv_obj_t * scr_to_load; /**< The screen prepared to load in lv_screen_load_anim*/ 132 uint32_t screen_cnt; 133 uint8_t draw_prev_over_act : 1;/** 1: Draw previous screen over active screen*/ 134 uint8_t del_prev : 1; /** 1: Automatically delete the previous screen when the screen load animation is ready*/ 135 136 /*--------------------- 137 * Others 138 *--------------------*/ 139 140 void * driver_data; /**< Custom user data*/ 141 142 void * user_data; /**< Custom user data*/ 143 144 lv_event_list_t event_list; 145 146 uint32_t rotation : 3; /**< Element of lv_display_rotation_t*/ 147 148 lv_theme_t * theme; /**< The theme assigned to the screen*/ 149 150 /** A timer which periodically checks the dirty areas and refreshes them*/ 151 lv_timer_t * refr_timer; 152 153 /*Miscellaneous data*/ 154 uint32_t last_activity_time; /**< Last time when there was activity on this display*/ 155 156 /** The area being refreshed*/ 157 lv_area_t refreshed_area; 158 159 #if LV_USE_PERF_MONITOR 160 lv_obj_t * perf_label; 161 lv_sysmon_backend_data_t perf_sysmon_backend; 162 lv_sysmon_perf_info_t perf_sysmon_info; 163 #endif 164 165 #if LV_USE_MEM_MONITOR 166 lv_obj_t * mem_label; 167 #endif 168 169 }; 170 171 /********************** 172 * GLOBAL PROTOTYPES 173 **********************/ 174 175 /********************** 176 * MACROS 177 **********************/ 178 179 #ifdef __cplusplus 180 } /*extern "C"*/ 181 #endif 182 183 #endif /*LV_DISPLAY_PRIVATE_H*/ 184
