fix a lot of warnings

lv_core/lv_indev.c

@@ -192,6 +192,8 @@ void lv_indev_wait_release(lv_indev_t * indev)
  */
 static void indev_proc_task(void * param)
 {
+    (void)param;
+
     lv_indev_data_t data;
     lv_indev_t * i;
     i = lv_indev_next(NULL);

lv_core/lv_obj.c

@@ -1428,6 +1428,8 @@ static bool lv_obj_design(lv_obj_t * obj, const  lv_area_t * mask_p, lv_design_m
  */
 static lv_res_t lv_obj_signal(lv_obj_t * obj, lv_signal_t sign, void * param)
 {
+    (void)param;
+
     lv_res_t res = LV_RES_OK;
 
     lv_style_t * style = lv_obj_get_style(obj);

lv_core/lv_refr.c

@@ -146,6 +146,7 @@ void lv_refr_set_monitor_cb(void (*cb)(uint32_t, uint32_t))
  */
 static void lv_refr_task(void * param)
 {
+    (void)param;
 
     uint32_t start = lv_tick_get();
 
@@ -257,7 +258,7 @@ static void lv_refr_area_no_vdb(const lv_area_t * area_p)
 static void lv_refr_area_with_vdb(const lv_area_t * area_p)
 {
     /*Calculate the max row num*/
-    uint32_t max_row = (uint32_t) LV_VDB_SIZE / (lv_area_get_width(area_p));
+    lv_coord_t max_row = (uint32_t) LV_VDB_SIZE / (lv_area_get_width(area_p));
     if(max_row > lv_area_get_height(area_p)) max_row = lv_area_get_height(area_p);
     
     /*Round the row number with downscale*/

lv_core/lv_vdb.c

@@ -191,4 +191,13 @@ void lv_flush_ready(void)
  *   STATIC FUNCTIONS
  **********************/
 
+#else
+
+/**
+ * Just for compatibility
+ */
+void lv_flush_ready(void)
+{
+    /*Do nothing. It is used only for VDB*/
+}
 #endif

lv_core/lv_vdb.h

@@ -60,7 +60,11 @@ void lv_flush_ready(void);
  *      MACROS
  **********************/
 
-#endif /*LV_VDB_SIZE != 0*/
+#else /*LV_VDB_SIZE != 0*/
+
+/*Just for compatibility*/
+void lv_flush_ready(void);
+#endif
 
 #ifdef __cplusplus
 } /* extern "C" */

lv_draw/lv_draw.c

@@ -265,7 +265,7 @@ void lv_draw_label(const lv_area_t * coords,const lv_area_t * mask, const lv_sty
 
     cmd_state_t cmd_state = CMD_STATE_WAIT;
     uint32_t i;
-    uint16_t par_start;
+    uint16_t par_start = 0;
     lv_color_t recolor;
 
     if(offset != NULL) {
@@ -285,7 +285,7 @@ void lv_draw_label(const lv_area_t * coords,const lv_area_t * mask, const lv_sty
             letter = lv_txt_utf8_next(txt, &i);
             /*Handle the re-color command*/
             if((flag & LV_TXT_FLAG_RECOLOR) != 0) {
-                if(letter == LV_TXT_COLOR_CMD[0]) {
+                if(letter == (uint32_t)LV_TXT_COLOR_CMD[0]) {
                     if(cmd_state == CMD_STATE_WAIT) { /*Start char*/
                         par_start = i + lv_txt_utf8_size(txt[i]);
                         cmd_state = CMD_STATE_PAR;

lv_draw/lv_draw_rbasic.c

@@ -45,6 +45,8 @@
  */
 void lv_rpx(lv_coord_t x, lv_coord_t y, const lv_area_t * mask_p, lv_color_t color, lv_opa_t opa)
 {
+    (void)opa;      /*Opa is used only for compatibility with lv_vpx*/
+
     lv_area_t area;
     area.x1 = x;
     area.y1 = y;
@@ -64,6 +66,9 @@ void lv_rpx(lv_coord_t x, lv_coord_t y, const lv_area_t * mask_p, lv_color_t col
 void lv_rfill(const lv_area_t * cords_p, const lv_area_t * mask_p, 
               lv_color_t color, lv_opa_t opa)
 {   
+
+    (void)opa;      /*Opa is used only for compatibility with lv_vfill*/
+
     lv_area_t masked_area;
     bool union_ok = true;
     
@@ -93,6 +98,8 @@ void lv_rletter(const lv_point_t * pos_p, const lv_area_t * mask_p,
                      const lv_font_t * font_p, uint32_t letter,
                      lv_color_t color, lv_opa_t opa)
 {
+    (void)opa;      /*Opa is used only for compatibility with lv_vletter*/
+
     uint8_t w = lv_font_get_width(font_p, letter);
 
     if(letter == 'C') {
@@ -178,6 +185,11 @@ void lv_rmap(const lv_area_t * cords_p, const lv_area_t * mask_p,
              const lv_color_t * map_p, lv_opa_t opa, bool transp, bool upscale,
 			 lv_color_t recolor, lv_opa_t recolor_opa)
 {
+    (void)opa;              /*opa is used only for compatibility with lv_vmap*/
+    (void)recolor_opa;      /*recolor_opa is used only for compatibility with lv_vmap*/
+    (void)recolor;          /*recolor is used only for compatibility with lv_vmap*/
+    (void)upscale;          /*upscale is used only for compatibility with lv_vmap*/
+
     lv_area_t masked_a;
     bool union_ok;
 

lv_draw/lv_draw_vbasic.c

@@ -522,7 +522,7 @@ static void sw_mem_blend(lv_color_t * dest, const lv_color_t * src, uint32_t len
     if(opa == LV_OPA_COVER) {
         memcpy(dest, src, length * sizeof(lv_color_t));
     } else {
-        lv_coord_t col;
+        uint32_t col;
         for(col = 0; col < length; col++) {
         	dest[col] = lv_color_mix(src[col], dest[col], opa);
 		}
@@ -541,7 +541,7 @@ static void sw_color_fill(lv_area_t * mem_area, lv_color_t * mem, const lv_area_
 {
     /*Set all row in vdb to the given color*/
     lv_coord_t row;
-    uint32_t col;
+    lv_coord_t col;
     lv_coord_t mem_width = lv_area_get_width(mem_area);
 
     /*Run simpler function without opacity*/

lv_misc/lv_anim.c

@@ -169,6 +169,8 @@ lv_anim_path_t * lv_anim_get_path(lv_anim_path_name_t name)
  */
 static void anim_task (void * param)
 {
+    (void)param;
+
 	volatile uint32_t elaps;
 	elaps = lv_tick_elaps(last_task_run);
 

lv_misc/lv_area.h

@@ -62,7 +62,7 @@ void lv_area_set(lv_area_t * area_p, lv_coord_t x1, lv_coord_t y1, lv_coord_t x2
  * @param dest pointer to the destination area
  * @param src pointer to the source area
  */
-static void inline lv_area_copy(lv_area_t * dest, const lv_area_t * src)
+inline static void lv_area_copy(lv_area_t * dest, const lv_area_t * src)
 {
     memcpy(dest, src, sizeof(lv_area_t));
 }

lv_misc/lv_fonts/dejavu_40.c

@@ -4039,6 +4039,7 @@ lv_font_t lv_font_dejavu_40 =
     dejavu_40_bitmap,    /*Glyph's bitmap*/
     dejavu_40_map,    /*Glyph start indexes in the bitmap*/
     dejavu_40_width,    /*Glyph widths (columns)*/
+    NULL
 };
 
 #endif /*DEJAVU_40_H*/

lv_misc/lv_fonts/dejavu_40_cyrillic.c

@@ -10841,6 +10841,7 @@ lv_font_t lv_font_dejavu_40_cyrillic =
     dejavu_40_cyrillic_bitmap,    /*Glyph's bitmap*/
     dejavu_40_cyrillic_map,    /*Glyph start indexes in the bitmap*/
     dejavu_40_cyrillic_width,    /*Glyph widths (columns)*/
+    NULL
 };
 
 #endif /*DEJAVU_40_CYRILLIC_H*/

lv_misc/lv_fonts/dejavu_40_latin_ext_a.c

@@ -5433,6 +5433,7 @@ lv_font_t lv_font_dejavu_40_latin_ext_a =
     dejavu_40_latin_ext_a_bitmap,    /*Glyph's bitmap*/
     dejavu_40_latin_ext_a_map,    /*Glyph start indexes in the bitmap*/
     dejavu_40_latin_ext_a_width,    /*Glyph widths (columns)*/
+    NULL
 };
 
 #endif /*DEJAVU_40_LATIN_EXT_A_H*/

lv_misc/lv_fonts/dejavu_40_latin_ext_b.c

@@ -8813,6 +8813,7 @@ lv_font_t lv_font_dejavu_40_latin_ext_b =
     dejavu_40_latin_ext_b_bitmap,    /*Glyph's bitmap*/
     dejavu_40_latin_ext_b_map,    /*Glyph start indexes in the bitmap*/
     dejavu_40_latin_ext_b_width,    /*Glyph widths (columns)*/
+    NULL
 };
 
 #endif /*DEJAVU_40_LATIN_EXT_B_H*/

lv_misc/lv_fonts/dejavu_40_sup.c

@@ -4081,6 +4081,7 @@ lv_font_t lv_font_dejavu_40_sup =
     dejavu_40_sup_bitmap,    /*Glyph's bitmap*/
     dejavu_40_sup_map,    /*Glyph start indexes in the bitmap*/
     dejavu_40_sup_width,    /*Glyph widths (columns)*/
+    NULL
 };
 
 #endif /*DEJAVU_40_SUP_H*/

lv_misc/lv_fonts/symbol_40_basic.c

@@ -622,6 +622,7 @@ lv_font_t lv_font_symbol_40_basic =
     symbol_40_basic_bitmap,    /*Glyph's bitmap*/
     symbol_40_basic_map,    /*Glyph start indexes in the bitmap*/
     symbol_40_basic_width,    /*Glyph widths (columns)*/
+    NULL
 };
 
 #endif /*SYMBOL_40_BASIC_H*/

lv_misc/lv_fonts/symbol_40_feedback.c

@@ -664,6 +664,7 @@ lv_font_t lv_font_symbol_40_feedback =
     symbol_40_feedback_bitmap,    /*Glyph's bitmap*/
     symbol_40_feedback_map,    /*Glyph start indexes in the bitmap*/
     symbol_40_feedback_width,    /*Glyph widths (columns)*/
+    NULL
 };
 
 #endif /*SYMBOL_40_FEEDBACK_H*/

lv_misc/lv_fonts/symbol_40_file.c

@@ -918,6 +918,7 @@ lv_font_t lv_font_symbol_40_file =
     symbol_40_file_bitmap,    /*Glyph's bitmap*/
     symbol_40_file_map,    /*Glyph start indexes in the bitmap*/
     symbol_40_file_width,    /*Glyph widths (columns)*/
+    NULL
 };
 
 #endif /*SYMBOL_40_FILE_H*/

lv_misc/lv_fonts/symbol_60_basic.c

@@ -903,6 +903,7 @@ lv_font_t lv_font_symbol_60_basic =
     symbol_60_basic_bitmap,    /*Glyph's bitmap*/
     symbol_60_basic_map,    /*Glyph start indexes in the bitmap*/
     symbol_60_basic_width,    /*Glyph widths (columns)*/
+    NULL
 };
 
 #endif /*SYMBOL_60_BASIC_H*/

lv_misc/lv_ll.c

@@ -270,6 +270,9 @@ void * lv_ll_get_prev(lv_ll_t * ll_p, void * n_act)
 
 void lv_ll_swap(lv_ll_t * ll_p, void * n1_p, void * n2_p)
 {
+    (void)(ll_p);
+    (void)(n1_p);
+    (void)(n2_p);
     /*TODO*/
 }
 

lv_misc/lv_txt.c

@@ -224,7 +224,7 @@ bool lv_txt_is_cmd(lv_txt_cmd_state_t * state, uint32_t c)
 {
     bool ret = false;
 
-    if(c == LV_TXT_COLOR_CMD[0]) {
+    if(c == (uint32_t)LV_TXT_COLOR_CMD[0]) {
        if(*state == LV_TXT_CMD_STATE_WAIT) { /*Start char*/
            *state = LV_TXT_CMD_STATE_PAR;
            ret = true;
@@ -263,7 +263,7 @@ void lv_txt_ins(char * txt_buf, uint32_t pos, const char * ins_txt)
     pos = txt_utf8_get_byte_id(txt_buf, pos);   /*Convert to byte index instead of letter index*/
 #endif
     /*Copy the second part into the end to make place to text to insert*/
-    int32_t i;
+    uint32_t i;
     for(i = new_len; i >= pos + ins_len; i--){
         txt_buf[i] = txt_buf[i - ins_len];
     }
@@ -550,7 +550,7 @@ static bool is_break_char(uint32_t letter)
     
     /*Compare the letter to TXT_BREAK_CHARS*/
     for(i = 0; LV_TXT_BREAK_CHARS[i] != '\0'; i++) {
-        if(letter == LV_TXT_BREAK_CHARS[i]) {
+        if(letter == (uint32_t)LV_TXT_BREAK_CHARS[i]) {
             ret = true; /*If match then it is break char*/
             break;
         }

lv_misc/lv_ufs.c

@@ -428,6 +428,7 @@ lv_fs_res_t lv_ufs_readdir(void * dir_p, char * fn)
  */
 lv_fs_res_t lv_ufs_readdir_close(void * rddir_p)
 {
+    (void)rddir_p;
     return FS_RES_OK;
 }
 

lv_objx/lv_btnm.c

@@ -417,6 +417,7 @@ static bool lv_btnm_design(lv_obj_t * btnm, const lv_area_t * mask, lv_design_mo
 			else if(btn_i == ext->btn_id_pr && btn_i != ext->btn_id_tgl) btn_style = lv_btnm_get_style(btnm, LV_BTNM_STYLE_BTN_PR);
             else if(btn_i != ext->btn_id_pr && btn_i == ext->btn_id_tgl) btn_style = lv_btnm_get_style(btnm, LV_BTNM_STYLE_BTN_TGL_REL);
             else if(btn_i == ext->btn_id_pr && btn_i == ext->btn_id_tgl) btn_style = lv_btnm_get_style(btnm, LV_BTNM_STYLE_BTN_TGL_PR);
+            else btn_style = lv_btnm_get_style(btnm, LV_BTNM_STYLE_BTN_REL);    /*Not possible option, just to be sure*/
 
 			/*On the right buttons clear the border if only right borders are drawn*/
 			if(ext->map_p[txt_i + 1][0] == '\0' || ext->map_p[txt_i + 1][0] == '\n') {

lv_objx/lv_chart.c

@@ -332,7 +332,7 @@ lv_coord_t lv_chart_get_series_width(lv_obj_t * chart)
  * @param chart pointer to chart object
  * @return dark effect level (LV_OPA_TRANSP to turn off)
  */
-lv_opa_t lv_chart_get_series_darking(lv_obj_t * chart, lv_opa_t dark_eff)
+lv_opa_t lv_chart_get_series_darking(lv_obj_t * chart)
 {
     lv_chart_ext_t * ext = lv_obj_get_ext_attr(chart);
     return ext->series.dark;

lv_objx/lv_chart.h

@@ -195,7 +195,7 @@ lv_coord_t lv_chart_get_series_width(lv_obj_t * chart);
  * @param chart pointer to chart object
  * @return dark effect level (LV_OPA_TRANSP to turn off)
  */
-lv_opa_t lv_chart_get_series_darking(lv_obj_t * chart, lv_opa_t dark_eff);
+lv_opa_t lv_chart_get_series_darking(lv_obj_t * chart);
 
 /**
  * Get the style of an chart object

lv_objx/lv_img.c

@@ -205,9 +205,9 @@ void lv_img_set_upscale(lv_obj_t * img, bool upscale_en)
     /*Upscale works only if antialiassing is enabled*/
 #if LV_ANTIALIAS == 0
     upscale_en = false;
-#else
-    ext->upscale = (upscale_en == false ? 0 : 1);
 #endif
+    ext->upscale = (upscale_en == false ? 0 : 1);
+
     /*Refresh the image with the new size*/
     lv_img_set_file(img, ext->fn);
 }

lv_objx/lv_kb.c

@@ -274,7 +274,7 @@ lv_kb_mode_t lv_kb_get_mode(lv_obj_t * kb)
  * @param kb pointer to a Keyboard object
  * @return true: show cursor on the current text area, false: hide cursor
  */
-bool lv_kb_get_cursor_manage(lv_obj_t * kb, bool en)
+bool lv_kb_get_cursor_manage(lv_obj_t * kb)
 {
     lv_kb_ext_t * ext = lv_obj_get_ext_attr(kb);
     return ext->cursor_mng == 0 ? false : true;
@@ -285,7 +285,7 @@ bool lv_kb_get_cursor_manage(lv_obj_t * kb, bool en)
  * @param kb pointer to Keyboard object
  * @return the ok callback
  */
-lv_action_t lv_kb_get_ok_action(lv_obj_t * kb, lv_action_t action)
+lv_action_t lv_kb_get_ok_action(lv_obj_t * kb)
 {
     lv_kb_ext_t * ext = lv_obj_get_ext_attr(kb);
     return ext->ok_action;
@@ -296,7 +296,7 @@ lv_action_t lv_kb_get_ok_action(lv_obj_t * kb, lv_action_t action)
  * @param kb pointer to Keyboard object
  * @return the close callback
  */
-lv_action_t lv_kb_get_close_action(lv_obj_t * kb, lv_action_t action)
+lv_action_t lv_kb_get_close_action(lv_obj_t * kb)
 {
     lv_kb_ext_t * ext = lv_obj_get_ext_attr(kb);
     return ext->close_action;

lv_objx/lv_kb.h

@@ -135,21 +135,21 @@ lv_kb_mode_t lv_kb_get_mode(lv_obj_t * kb);
  * @param kb pointer to a Keyboard object
  * @return true: show cursor on the current text area, false: hide cursor
  */
-bool lv_kb_get_cursor_manage(lv_obj_t * kb, bool en);
+bool lv_kb_get_cursor_manage(lv_obj_t * kb);
 
 /**
  * Get the callback to call when the "Ok" button is pressed
  * @param kb pointer to Keyboard object
  * @return the ok callback
  */
-lv_action_t lv_kb_get_ok_action(lv_obj_t * kb, lv_action_t action);
+lv_action_t lv_kb_get_ok_action(lv_obj_t * kb);
 
 /**
  * Get the callback to call when the "Hide" button is pressed
  * @param kb pointer to Keyboard object
  * @return the close callback
  */
-lv_action_t lv_kb_get_close_action(lv_obj_t * kb, lv_action_t action);
+lv_action_t lv_kb_get_close_action(lv_obj_t * kb);
 
 /**
  * Get a style of a keyboard

lv_objx/lv_roller.c

@@ -244,7 +244,7 @@ static bool lv_roller_design(lv_obj_t * roller, const lv_area_t * mask, lv_desig
  */
 static lv_res_t lv_roller_signal(lv_obj_t * roller, lv_signal_t sign, void * param)
 {
-    lv_res_t res;
+    lv_res_t res  = LV_RES_OK;
 
     /*Don't let the drop down list to handle the control signals. It works differently*/
     if(sign != LV_SIGNAL_CONTROLL && sign != LV_SIGNAL_FOCUS && sign != LV_SIGNAL_DEFOCUS) {

lv_objx/lv_ta.c

@@ -1013,7 +1013,8 @@ static void cursor_blink_anim(lv_obj_t * ta, uint8_t show)
  */
 static void pwd_char_hider_anim(lv_obj_t * ta, int32_t x)
 {
-
+    (void)ta;
+    (void)x;
 }
 
 /**

lv_objx/lv_tabview.c

@@ -446,7 +446,7 @@ bool lv_tabview_get_sliding(lv_obj_t * tabview)
  * @param tabview pointer to Tab view object
  * @return time of animation in milliseconds
  */
-uint16_t lv_tabview_get_anim_time(lv_obj_t * tabview, uint16_t anim_time_ms)
+uint16_t lv_tabview_get_anim_time(lv_obj_t * tabview)
 {
     lv_tabview_ext_t  * ext = lv_obj_get_ext_attr(tabview);
     return ext->anim_time;
@@ -595,6 +595,8 @@ static lv_res_t tabpage_scrl_signal(lv_obj_t * tab_scrl, lv_signal_t sign, void
  */
 static void tabpage_pressed_hadler(lv_obj_t * tabview, lv_obj_t * tabpage)
 {
+    (void)tabpage;
+
     lv_tabview_ext_t * ext = lv_obj_get_ext_attr(tabview);
     lv_indev_t * indev = lv_indev_get_act();
     lv_indev_get_point(indev, &ext->point_last);

lv_objx/lv_tabview.h

@@ -182,7 +182,7 @@ bool lv_tabview_get_sliding(lv_obj_t * tabview);
  * @param tabview pointer to Tab view object
  * @return time of animation in milliseconds
  */
-uint16_t lv_tabview_get_anim_time(lv_obj_t * tabview, uint16_t anim_time_ms);
+uint16_t lv_tabview_get_anim_time(lv_obj_t * tabview);
 
 /**
  * Get a style of a tab view

lv_objx/lv_win.c

@@ -467,7 +467,7 @@ static void lv_win_realign(lv_obj_t * win)
 
     bool first_btn = true;
     lv_obj_t *btn;
-    lv_obj_t *btn_prev;
+    lv_obj_t *btn_prev = NULL;
     /*Refresh the size of all control buttons*/
     btn = lv_obj_get_child_back(ext->header, NULL);
     btn = lv_obj_get_child_back(ext->header, btn);    /*Skip the title*/