/** * @file lv_draw_rect.c * */ /********************* * INCLUDES *********************/ #include "lv_draw_rect.h" #include "lv_draw_blend.h" #include "lv_draw_mask.h" #include "../misc/lv_math.h" #include "../misc/lv_txt_ap.h" #include "../core/lv_refr.h" #include "../misc/lv_assert.h" /********************* * DEFINES *********************/ #define SHADOW_UPSCALE_SHIFT 6 #define SHADOW_ENHANCE 1 #define SPLIT_LIMIT 50 /********************** * TYPEDEFS **********************/ /********************** * STATIC PROTOTYPES **********************/ LV_ATTRIBUTE_FAST_MEM static void draw_bg(const lv_area_t * coords, const lv_area_t * clip, const lv_draw_rect_dsc_t * dsc); LV_ATTRIBUTE_FAST_MEM static void draw_bg_img(const lv_area_t * coords, const lv_area_t * clip, const lv_draw_rect_dsc_t * dsc); LV_ATTRIBUTE_FAST_MEM static void draw_border(const lv_area_t * coords, const lv_area_t * clip, const lv_draw_rect_dsc_t * dsc); static void draw_outline(const lv_area_t * coords, const lv_area_t * clip, const lv_draw_rect_dsc_t * dsc); #if LV_DRAW_COMPLEX LV_ATTRIBUTE_FAST_MEM static void draw_shadow(const lv_area_t * coords, const lv_area_t * clip, const lv_draw_rect_dsc_t * dsc); LV_ATTRIBUTE_FAST_MEM static void shadow_draw_corner_buf(const lv_area_t * coords, uint16_t * sh_buf, lv_coord_t s, lv_coord_t r); LV_ATTRIBUTE_FAST_MEM static void shadow_blur_corner(lv_coord_t size, lv_coord_t sw, uint16_t * sh_ups_buf); static void draw_full_border(const lv_area_t * area_inner, const lv_area_t * area_outer, const lv_area_t * clip, lv_coord_t radius, bool radius_is_in, lv_color_t color, lv_opa_t opa, lv_blend_mode_t blend_mode); #else static void draw_simple_border(const lv_area_t * clip, const lv_area_t * area_inner, const lv_area_t * area_outer, lv_color_t color, lv_opa_t opa, lv_border_side_t side); #endif #if LV_DRAW_COMPLEX LV_ATTRIBUTE_FAST_MEM static inline lv_color_t grad_get(const lv_draw_rect_dsc_t * dsc, lv_coord_t s, lv_coord_t i); #endif /********************** * STATIC VARIABLES **********************/ #if defined(LV_SHADOW_CACHE_SIZE) && LV_SHADOW_CACHE_SIZE > 0 static uint8_t sh_cache[LV_SHADOW_CACHE_SIZE * LV_SHADOW_CACHE_SIZE]; static int32_t sh_cache_size = -1; static int32_t sh_cache_r = -1; #endif /********************** * MACROS **********************/ /********************** * GLOBAL FUNCTIONS **********************/ LV_ATTRIBUTE_FAST_MEM void lv_draw_rect_dsc_init(lv_draw_rect_dsc_t * dsc) { lv_memset_00(dsc, sizeof(lv_draw_rect_dsc_t)); dsc->bg_color = lv_color_white(); dsc->bg_grad_color = lv_color_black(); dsc->border_color = lv_color_black(); dsc->shadow_color = lv_color_black(); dsc->bg_grad_color_stop = 0xFF; dsc->bg_img_symbol_font = LV_FONT_DEFAULT; dsc->bg_opa = LV_OPA_COVER; dsc->bg_img_opa = LV_OPA_COVER; dsc->outline_opa = LV_OPA_COVER; dsc->border_opa = LV_OPA_COVER; dsc->shadow_opa = LV_OPA_COVER; dsc->border_side = LV_BORDER_SIDE_FULL; } /** * Draw a rectangle * @param coords the coordinates of the rectangle * @param mask the rectangle will be drawn only in this mask * @param dsc pointer to an initialized `lv_draw_rect_dsc_t` variable */ void lv_draw_rect(const lv_area_t * coords, const lv_area_t * clip, const lv_draw_rect_dsc_t * dsc) { if(lv_area_get_height(coords) < 1 || lv_area_get_width(coords) < 1) return; #if LV_DRAW_COMPLEX draw_shadow(coords, clip, dsc); #endif draw_bg(coords, clip, dsc); draw_bg_img(coords, clip, dsc); draw_border(coords, clip, dsc); draw_outline(coords, clip, dsc); LV_ASSERT_MEM_INTEGRITY(); } /********************** * STATIC FUNCTIONS **********************/ LV_ATTRIBUTE_FAST_MEM static void draw_bg(const lv_area_t * coords, const lv_area_t * clip, const lv_draw_rect_dsc_t * dsc) { if(dsc->bg_opa <= LV_OPA_MIN) return; lv_area_t coords_bg; lv_area_copy(&coords_bg, coords); /*If the border fully covers make the bg area 1px smaller to avoid artifacts on the corners*/ if(dsc->border_width > 1 && dsc->border_opa >= LV_OPA_MAX && dsc->radius != 0) { coords_bg.x1 += (dsc->border_side & LV_BORDER_SIDE_LEFT) ? 1 : 0; coords_bg.y1 += (dsc->border_side & LV_BORDER_SIDE_TOP) ? 1 : 0; coords_bg.x2 -= (dsc->border_side & LV_BORDER_SIDE_RIGHT) ? 1 : 0; coords_bg.y2 -= (dsc->border_side & LV_BORDER_SIDE_BOTTOM) ? 1 : 0; } lv_opa_t opa = dsc->bg_opa; if(opa > LV_OPA_MAX) opa = LV_OPA_COVER; lv_disp_t * disp = _lv_refr_get_disp_refreshing(); lv_disp_draw_buf_t * draw_buf = lv_disp_get_draw_buf(disp); /*Get clipped fill area which is the real draw area. *It is always the same or inside `fill_area`*/ lv_area_t draw_area; bool is_common; is_common = _lv_area_intersect(&draw_area, &coords_bg, clip); if(is_common == false) return; const lv_area_t * disp_area = &draw_buf->area; /*Now `draw_area` has absolute coordinates. *Make it relative to `disp_area` to simplify draw to `disp_buf`*/ draw_area.x1 -= disp_area->x1; draw_area.y1 -= disp_area->y1; draw_area.x2 -= disp_area->x1; draw_area.y2 -= disp_area->y1; lv_grad_dir_t grad_dir = dsc->bg_grad_dir; if(dsc->bg_color.full == dsc->bg_grad_color.full) grad_dir = LV_GRAD_DIR_NONE; uint16_t other_mask_cnt = lv_draw_mask_get_cnt(); bool simple_mode = true; if(other_mask_cnt) simple_mode = false; else if(grad_dir == LV_GRAD_DIR_HOR) simple_mode = false; int32_t coords_w = lv_area_get_width(&coords_bg); int32_t coords_h = lv_area_get_height(&coords_bg); /*Get the real radius*/ int32_t rout = dsc->radius; int32_t short_side = LV_MIN(coords_w, coords_h); if(rout > short_side >> 1) rout = short_side >> 1; /*Most simple case: just a plain rectangle*/ if(simple_mode && rout == 0 && (grad_dir == LV_GRAD_DIR_NONE)) { _lv_blend_fill(clip, &coords_bg, dsc->bg_color, NULL, LV_DRAW_MASK_RES_FULL_COVER, opa, dsc->blend_mode); } #if LV_DRAW_COMPLEX /*More complex case: there is a radius, gradient or other mask.*/ else { int32_t draw_area_w = lv_area_get_width(&draw_area); int16_t mask_rout_id = LV_MASK_ID_INV; lv_opa_t * mask_buf = lv_mem_buf_get(draw_area_w); lv_draw_mask_radius_param_t mask_rout_param; if(rout > 0) { lv_draw_mask_radius_init(&mask_rout_param, &coords_bg, rout, false); mask_rout_id = lv_draw_mask_add(&mask_rout_param, NULL); } /*Draw the background line by line*/ int32_t h; lv_draw_mask_res_t mask_res = LV_DRAW_MASK_RES_FULL_COVER; lv_color_t grad_color = dsc->bg_color; /*In case of horizontal gradient pre-compute a line with a gradient*/ lv_color_t * grad_map = NULL; if(grad_dir == LV_GRAD_DIR_HOR) { grad_map = lv_mem_buf_get(coords_w * sizeof(lv_color_t)); int32_t i; for(i = 0; i < coords_w; i++) { grad_map[i] = grad_get(dsc, coords_w, i); } } bool split = false; if(lv_area_get_width(&coords_bg) - 2 * rout > SPLIT_LIMIT) split = true; lv_opa_t opa2; lv_area_t fill_area; fill_area.x1 = coords_bg.x1; fill_area.x2 = coords_bg.x2; fill_area.y1 = disp_area->y1 + draw_area.y1; fill_area.y2 = fill_area.y1; for(h = draw_area.y1; h <= draw_area.y2; h++) { int32_t y = h + draw_buf->area.y1; opa2 = opa; /*In not corner areas apply the mask only if required*/ if(y > coords_bg.y1 + rout + 1 && y < coords_bg.y2 - rout - 1) { mask_res = LV_DRAW_MASK_RES_FULL_COVER; if(simple_mode == false) { lv_memset(mask_buf, opa, draw_area_w); mask_res = lv_draw_mask_apply(mask_buf, draw_buf->area.x1 + draw_area.x1, draw_buf->area.y1 + h, draw_area_w); } } /*In corner areas apply the mask anyway*/ else { lv_memset(mask_buf, opa, draw_area_w); mask_res = lv_draw_mask_apply(mask_buf, draw_buf->area.x1 + draw_area.x1, draw_buf->area.y1 + h, draw_area_w); } /*If mask will taken into account its base opacity was already set by memset above*/ if(mask_res == LV_DRAW_MASK_RES_CHANGED) { opa2 = LV_OPA_COVER; } /*Get the current line color*/ if(grad_dir == LV_GRAD_DIR_VER) { grad_color = grad_get(dsc, lv_area_get_height(&coords_bg), y - coords_bg.y1); } /*If there is not other mask and drawing the corner area split the drawing to corner and middle areas *because it the middle mask shouldn't be taken into account (therefore its faster)*/ if(simple_mode && split && (y < coords_bg.y1 + rout + 1 || y > coords_bg.y2 - rout - 1)) { /*Left part*/ lv_area_t fill_area2; fill_area2.x1 = coords_bg.x1; fill_area2.x2 = coords_bg.x1 + rout - 1; fill_area2.y1 = fill_area.y1; fill_area2.y2 = fill_area.y2; _lv_blend_fill(clip, &fill_area2, grad_color, mask_buf, mask_res, opa2, dsc->blend_mode); /*Center part*/ if(grad_dir == LV_GRAD_DIR_VER) { fill_area2.x1 = coords_bg.x1 + rout; fill_area2.x2 = coords_bg.x2 - rout; _lv_blend_fill(clip, &fill_area2, grad_color, NULL, LV_DRAW_MASK_RES_FULL_COVER, opa, dsc->blend_mode); } /*Right part*/ fill_area2.x1 = coords_bg.x2 - rout + 1; fill_area2.x2 = coords_bg.x2; int32_t mask_ofs = (coords_bg.x2 - rout + 1) - (draw_buf->area.x1 + draw_area.x1); if(mask_ofs < 0) mask_ofs = 0; _lv_blend_fill(clip, &fill_area2, grad_color, mask_buf + mask_ofs, mask_res, opa2, dsc->blend_mode); } else { if(grad_dir == LV_GRAD_DIR_HOR) { _lv_blend_map(clip, &fill_area, grad_map, mask_buf, mask_res, opa2, dsc->blend_mode); } else if(grad_dir == LV_GRAD_DIR_VER) { _lv_blend_fill(clip, &fill_area, grad_color, mask_buf, mask_res, opa2, dsc->blend_mode); } else if(other_mask_cnt != 0 || !split) { _lv_blend_fill(clip, &fill_area, grad_color, mask_buf, mask_res, opa2, dsc->blend_mode); } } fill_area.y1++; fill_area.y2++; } if(grad_dir == LV_GRAD_DIR_NONE && other_mask_cnt == 0 && split) { /*Central part*/ fill_area.x1 = coords_bg.x1 + rout; fill_area.x2 = coords_bg.x2 - rout; fill_area.y1 = coords_bg.y1; fill_area.y2 = coords_bg.y1 + rout; _lv_blend_fill(clip, &fill_area, dsc->bg_color, NULL, LV_DRAW_MASK_RES_FULL_COVER, opa, dsc->blend_mode); fill_area.y1 = coords_bg.y2 - rout; if(fill_area.y1 <= fill_area.y2) fill_area.y1 = fill_area.y2 + 1; /*Avoid overdrawing the last line*/ fill_area.y2 = coords_bg.y2; _lv_blend_fill(clip, &fill_area, dsc->bg_color, NULL, LV_DRAW_MASK_RES_FULL_COVER, opa, dsc->blend_mode); fill_area.x1 = coords_bg.x1; fill_area.x2 = coords_bg.x2; fill_area.y1 = coords_bg.y1 + rout + 1; fill_area.y2 = coords_bg.y2 - rout - 1; _lv_blend_fill(clip, &fill_area, dsc->bg_color, NULL, LV_DRAW_MASK_RES_FULL_COVER, opa, dsc->blend_mode); } if(grad_map) lv_mem_buf_release(grad_map); if(mask_buf) lv_mem_buf_release(mask_buf); lv_draw_mask_remove_id(mask_rout_id); } #endif } LV_ATTRIBUTE_FAST_MEM static void draw_bg_img(const lv_area_t * coords, const lv_area_t * clip, const lv_draw_rect_dsc_t * dsc) { if(dsc->bg_img_src == NULL) return; if(dsc->bg_img_opa <= LV_OPA_MIN) return; lv_img_src_t src_type = lv_img_src_get_type(dsc->bg_img_src); if(src_type == LV_IMG_SRC_SYMBOL) { lv_point_t size; lv_txt_get_size(&size, dsc->bg_img_src, dsc->bg_img_symbol_font, 0, 0, LV_COORD_MAX, LV_TEXT_FLAG_NONE); lv_area_t a; a.x1 = coords->x1 + lv_area_get_width(coords) / 2 - size.x / 2; a.x2 = a.x1 + size.x - 1; a.y1 = coords->y1 + lv_area_get_height(coords) / 2 - size.y / 2; a.y2 = a.y1 + size.y - 1; lv_draw_label_dsc_t label_draw_dsc; lv_draw_label_dsc_init(&label_draw_dsc); label_draw_dsc.font = dsc->bg_img_symbol_font; label_draw_dsc.color = dsc->bg_img_recolor; label_draw_dsc.opa = dsc->bg_img_opa; lv_draw_label(&a, clip, &label_draw_dsc, dsc->bg_img_src, NULL); } else { lv_img_header_t header; lv_res_t res = lv_img_decoder_get_info(dsc->bg_img_src, &header); if(res != LV_RES_OK) { LV_LOG_WARN("Coudn't read the background image"); return; } lv_draw_img_dsc_t img_dsc; lv_draw_img_dsc_init(&img_dsc); img_dsc.blend_mode = dsc->blend_mode; img_dsc.recolor = dsc->bg_img_recolor; img_dsc.recolor_opa = dsc->bg_img_recolor_opa; img_dsc.opa = dsc->bg_img_opa; /*Center align*/ if(dsc->bg_img_tiled == false) { lv_area_t area; area.x1 = coords->x1 + lv_area_get_width(coords) / 2 - header.w / 2; area.y1 = coords->y1 + lv_area_get_height(coords) / 2 - header.h / 2; area.x2 = area.x1 + header.w - 1; area.y2 = area.y1 + header.h - 1; lv_draw_img(&area, clip, dsc->bg_img_src, &img_dsc); } else { lv_area_t area; area.y1 = coords->y1; area.y2 = area.y1 + header.h - 1; for(; area.y1 <= coords->y2; area.y1 += header.h, area.y2 += header.h) { area.x1 = coords->x1; area.x2 = area.x1 + header.w - 1; for(; area.x1 <= coords->x2; area.x1 += header.w, area.x2 += header.w) { lv_draw_img(&area, clip, dsc->bg_img_src, &img_dsc); } } } } } LV_ATTRIBUTE_FAST_MEM static void draw_border(const lv_area_t * coords, const lv_area_t * clip, const lv_draw_rect_dsc_t * dsc) { if(dsc->border_opa <= LV_OPA_MIN) return; if(dsc->border_width == 0) return; if(dsc->border_side == LV_BORDER_SIDE_NONE) return; if(dsc->border_post) return; int32_t coords_w = lv_area_get_width(coords); int32_t coords_h = lv_area_get_height(coords); /*Get the real radius*/ int32_t rout = dsc->radius; int32_t short_side = LV_MIN(coords_w, coords_h); if(rout > short_side >> 1) rout = short_side >> 1; /*Get the inner area*/ lv_area_t area_inner; lv_area_copy(&area_inner, coords); area_inner.x1 += ((dsc->border_side & LV_BORDER_SIDE_LEFT) ? dsc->border_width : - (dsc->border_width + rout)); area_inner.x2 -= ((dsc->border_side & LV_BORDER_SIDE_RIGHT) ? dsc->border_width : - (dsc->border_width + rout)); area_inner.y1 += ((dsc->border_side & LV_BORDER_SIDE_TOP) ? dsc->border_width : - (dsc->border_width + rout)); area_inner.y2 -= ((dsc->border_side & LV_BORDER_SIDE_BOTTOM) ? dsc->border_width : - (dsc->border_width + rout)); #if LV_DRAW_COMPLEX if(dsc->border_side == LV_BORDER_SIDE_FULL) { draw_full_border(&area_inner, coords, clip, dsc->radius, false, dsc->border_color, dsc->border_opa, dsc->blend_mode); } else { lv_opa_t opa = dsc->border_opa; if(opa > LV_OPA_MAX) opa = LV_OPA_COVER; lv_disp_t * disp = _lv_refr_get_disp_refreshing(); lv_disp_draw_buf_t * draw_buf = lv_disp_get_draw_buf(disp); /*Get clipped fill area which is the real draw area. *It is always the same or inside `fill_area`*/ lv_area_t draw_area; bool is_common; is_common = _lv_area_intersect(&draw_area, coords, clip); if(is_common == false) return; const lv_area_t * disp_area = &draw_buf->area; /*Now `draw_area` has absolute coordinates. *Make it relative to `disp_area` to simplify draw to `disp_buf`*/ draw_area.x1 -= disp_area->x1; draw_area.y1 -= disp_area->y1; draw_area.x2 -= disp_area->x1; draw_area.y2 -= disp_area->y1; int32_t draw_area_w = lv_area_get_width(&draw_area); /*Create a mask if there is a radius*/ lv_opa_t * mask_buf = lv_mem_buf_get(draw_area_w); /*Create mask for the outer area*/ int16_t mask_rout_id = LV_MASK_ID_INV; lv_draw_mask_radius_param_t mask_rout_param; if(rout > 0) { lv_draw_mask_radius_init(&mask_rout_param, coords, rout, false); mask_rout_id = lv_draw_mask_add(&mask_rout_param, NULL); } /*Create mask for the inner mask*/ int32_t rin = rout - dsc->border_width; if(rin < 0) rin = 0; lv_draw_mask_radius_param_t mask_rin_param; lv_draw_mask_radius_init(&mask_rin_param, &area_inner, rout - dsc->border_width, true); int16_t mask_rin_id = lv_draw_mask_add(&mask_rin_param, NULL); int32_t corner_size = LV_MAX(rout, dsc->border_width - 1); int32_t h; lv_draw_mask_res_t mask_res; lv_area_t fill_area; lv_color_t color = dsc->border_color; lv_blend_mode_t blend_mode = dsc->blend_mode; fill_area.x1 = coords->x1; fill_area.x2 = coords->x2; fill_area.y1 = disp_area->y1 + draw_area.y1; fill_area.y2 = fill_area.y1; if(dsc->border_side == LV_BORDER_SIDE_LEFT) fill_area.x2 = coords->x1 + corner_size; volatile bool top_only = false; volatile bool bottom_only = false; if(dsc->border_side == LV_BORDER_SIDE_TOP) top_only = true; if(dsc->border_side == LV_BORDER_SIDE_BOTTOM) bottom_only = true; if(dsc->border_side == (LV_BORDER_SIDE_TOP | LV_BORDER_SIDE_BOTTOM)) { top_only = true; bottom_only = true; } volatile bool normal = !top_only && !bottom_only ? true : false; for(h = draw_area.y1; h <= draw_area.y2; h++) { if(normal || (top_only && fill_area.y1 <= coords->y1 + corner_size) || (bottom_only && fill_area.y1 >= coords->y2 - corner_size)) { lv_memset_ff(mask_buf, draw_area_w); mask_res = lv_draw_mask_apply(mask_buf, draw_buf->area.x1 + draw_area.x1, draw_buf->area.y1 + h, draw_area_w); _lv_blend_fill(clip, &fill_area, color, mask_buf, mask_res, opa, blend_mode); } fill_area.y1++; fill_area.y2++; } lv_draw_mask_remove_id(mask_rin_id); lv_draw_mask_remove_id(mask_rout_id); lv_mem_buf_release(mask_buf); } #else /*LV_DRAW_COMPLEX*/ draw_simple_border(clip, &area_inner, coords, dsc->border_color, dsc->border_opa, dsc->border_side); #endif } #if LV_DRAW_COMPLEX LV_ATTRIBUTE_FAST_MEM static inline lv_color_t grad_get(const lv_draw_rect_dsc_t * dsc, lv_coord_t s, lv_coord_t i) { int32_t min = (dsc->bg_main_color_stop * s) >> 8; if(i <= min) return dsc->bg_color; int32_t max = (dsc->bg_grad_color_stop * s) >> 8; if(i >= max) return dsc->bg_grad_color; int32_t d = dsc->bg_grad_color_stop - dsc->bg_main_color_stop; d = (s * d) >> 8; i -= min; lv_opa_t mix = (i * 255) / d; return lv_color_mix(dsc->bg_grad_color, dsc->bg_color, mix); } LV_ATTRIBUTE_FAST_MEM static void draw_shadow(const lv_area_t * coords, const lv_area_t * clip, const lv_draw_rect_dsc_t * dsc) { /*Check whether the shadow is visible*/ if(dsc->shadow_width == 0) return; if(dsc->shadow_opa <= LV_OPA_MIN) return; if(dsc->shadow_width == 1 && dsc->shadow_ofs_x == 0 && dsc->shadow_ofs_y == 0 && dsc->shadow_spread <= 0) { return; } int32_t sw = dsc->shadow_width; lv_area_t sh_rect_area; sh_rect_area.x1 = coords->x1 + dsc->shadow_ofs_x - dsc->shadow_spread; sh_rect_area.x2 = coords->x2 + dsc->shadow_ofs_x + dsc->shadow_spread; sh_rect_area.y1 = coords->y1 + dsc->shadow_ofs_y - dsc->shadow_spread; sh_rect_area.y2 = coords->y2 + dsc->shadow_ofs_y + dsc->shadow_spread; lv_area_t sh_area; sh_area.x1 = sh_rect_area.x1 - sw / 2 - 1; sh_area.x2 = sh_rect_area.x2 + sw / 2 + 1; sh_area.y1 = sh_rect_area.y1 - sw / 2 - 1; sh_area.y2 = sh_rect_area.y2 + sw / 2 + 1; lv_opa_t opa = dsc->shadow_opa; if(opa > LV_OPA_MAX) opa = LV_OPA_COVER; lv_disp_t * disp = _lv_refr_get_disp_refreshing(); lv_disp_draw_buf_t * draw_buf = lv_disp_get_draw_buf(disp); /*Get clipped fill area which is the real draw area. *It is always the same or inside `fill_area`*/ lv_area_t draw_area; bool is_common; is_common = _lv_area_intersect(&draw_area, &sh_area, clip); if(is_common == false) return; const lv_area_t * disp_area = &draw_buf->area; /*Now `draw_area` has absolute coordinates. *Make it relative to `disp_area` to simplify draw to `disp_buf`*/ draw_area.x1 -= disp_area->x1; draw_area.y1 -= disp_area->y1; draw_area.x2 -= disp_area->x1; draw_area.y2 -= disp_area->y1; /*Consider 1 px smaller bg to be sure the edge will be covered by the shadow*/ lv_area_t bg_coords; lv_area_copy(&bg_coords, coords); bg_coords.x1 += 1; bg_coords.y1 += 1; bg_coords.x2 -= 1; bg_coords.y2 -= 1; /*Get the real radius*/ int32_t r_bg = dsc->radius; int32_t short_side = LV_MIN(lv_area_get_width(&bg_coords), lv_area_get_height(&bg_coords)); if(r_bg > short_side >> 1) r_bg = short_side >> 1; int32_t r_sh = dsc->radius; short_side = LV_MIN(lv_area_get_width(&sh_rect_area), lv_area_get_height(&sh_rect_area)); if(r_sh > short_side >> 1) r_sh = short_side >> 1; int32_t corner_size = sw + r_sh; lv_opa_t * sh_buf; #if LV_SHADOW_CACHE_SIZE if(sh_cache_size == corner_size && sh_cache_r == r_sh) { /*Use the cache if available*/ sh_buf = lv_mem_buf_get(corner_size * corner_size); lv_memcpy(sh_buf, sh_cache, corner_size * corner_size); } else { /*A larger buffer is required for calculation*/ sh_buf = lv_mem_buf_get(corner_size * corner_size * sizeof(uint16_t)); shadow_draw_corner_buf(&sh_rect_area, (uint16_t *)sh_buf, dsc->shadow_width, r_sh); /*Cache the corner if it fits into the cache size*/ if((uint32_t)corner_size * corner_size < sizeof(sh_cache)) { lv_memcpy(sh_cache, sh_buf, corner_size * corner_size); sh_cache_size = corner_size; sh_cache_r = r_sh; } } #else sh_buf = lv_mem_buf_get(corner_size * corner_size * sizeof(uint16_t)); shadow_draw_corner_buf(&sh_rect_area, (uint16_t *)sh_buf, dsc->shadow_width, r_sh); #endif lv_coord_t h_half = sh_area.y1 + lv_area_get_height(&sh_area) / 2; lv_coord_t w_half = sh_area.x1 + lv_area_get_width(&sh_area) / 2; bool simple_mode = true; if(lv_draw_mask_get_cnt() > 0) simple_mode = false; else if(dsc->shadow_ofs_x != 0 || dsc->shadow_ofs_y != 0) simple_mode = false; else if(dsc->shadow_spread != 0) simple_mode = false; /*Create a mask*/ lv_draw_mask_res_t mask_res; lv_opa_t * mask_buf = lv_mem_buf_get(lv_area_get_width(&sh_area)); lv_draw_mask_radius_param_t mask_rout_param; lv_draw_mask_radius_init(&mask_rout_param, &bg_coords, r_bg, true); int16_t mask_rout_id = lv_draw_mask_add(&mask_rout_param, NULL); lv_area_t a; /*Draw the top right corner*/ int32_t y; lv_opa_t * sh_buf_tmp; a.x2 = sh_area.x2; a.x1 = a.x2 - corner_size + 1; a.y1 = sh_area.y1; a.y2 = a.y1 + corner_size - 1; lv_area_t ca; bool has_com = _lv_area_intersect(&ca, &a, clip); if(has_com && _lv_area_is_in(&a, &bg_coords, r_bg) == false) { /*Avoid overlap in the middle with large radius*/ if(ca.y2 > h_half) ca.y2 = h_half; if(ca.x1 <= w_half) ca.x1 = w_half + 1; lv_coord_t h = lv_area_get_height(&ca); lv_coord_t w = lv_area_get_width(&ca); if(w > 0) { sh_buf_tmp = sh_buf + (ca.x1 - a.x1); sh_buf_tmp += corner_size * (ca.y1 - a.y1); lv_area_t fa; lv_area_copy(&fa, &ca); fa.y2 = fa.y1; for(y = 0; y < h; y++) { lv_memcpy(mask_buf, sh_buf_tmp, w); mask_res = lv_draw_mask_apply(mask_buf, fa.x1, fa.y1, w); if(mask_res == LV_DRAW_MASK_RES_FULL_COVER) mask_res = LV_DRAW_MASK_RES_CHANGED; _lv_blend_fill(clip, &fa, dsc->shadow_color, mask_buf, mask_res, opa, dsc->blend_mode); fa.y1++; fa.y2++; sh_buf_tmp += corner_size; } } } /*Draw the bottom right corner*/ a.x2 = sh_area.x2; a.x1 = a.x2 - corner_size + 1; a.y1 = sh_area.y2 - corner_size + 1; a.y2 = sh_area.y2; has_com = _lv_area_intersect(&ca, &a, clip); if(has_com && _lv_area_is_in(&a, &bg_coords, r_bg) == false) { /*Avoid overlap in the middle with large radius*/ if(ca.y1 <= h_half) ca.y1 = h_half; if(ca.x1 <= w_half) ca.x1 = w_half; lv_coord_t h = lv_area_get_height(&ca); lv_coord_t w = lv_area_get_width(&ca); if(w > 0) { sh_buf_tmp = sh_buf + (ca.x1 - a.x1); sh_buf_tmp += corner_size * (a.y2 - ca.y2); lv_area_t fa; lv_area_copy(&fa, &ca); fa.y1 = fa.y2; /*Fill from bottom to top*/ for(y = 0; y < h; y++) { lv_memcpy(mask_buf, sh_buf_tmp, w); mask_res = lv_draw_mask_apply(mask_buf, fa.x1, fa.y1, w); if(mask_res == LV_DRAW_MASK_RES_FULL_COVER) mask_res = LV_DRAW_MASK_RES_CHANGED; _lv_blend_fill(clip, &fa, dsc->shadow_color, mask_buf, mask_res, opa, dsc->blend_mode); fa.y1--; fa.y2--; sh_buf_tmp += corner_size; } } } /*Fill the right side*/ a.x2 = sh_area.x2; a.x1 = a.x2 - corner_size + 1; a.y1 = sh_area.y1 + corner_size; a.y2 = sh_area.y2 - corner_size; has_com = _lv_area_intersect(&ca, &a, clip); if(has_com && _lv_area_is_in(&a, &bg_coords, r_bg) == false) { /*Avoid overlap in the middle with large radius*/ if(ca.x1 <= w_half) ca.x1 = w_half + 1; if(simple_mode) ca.x1 = LV_MAX(ca.x1, coords->x2); /*Draw horizontal lines*/ lv_coord_t w = lv_area_get_width(&ca); if(w > 0) { lv_coord_t h = lv_area_get_height(&ca); /*The last line of the shadow is repeated on the side*/ sh_buf_tmp = sh_buf + corner_size * (corner_size - 1); sh_buf_tmp += ca.x1 - a.x1; lv_area_t fa; lv_area_copy(&fa, &ca); fa.y2 = fa.y1; mask_res = LV_DRAW_MASK_RES_FULL_COVER; for(y = 0; y < h; y++) { lv_memcpy(mask_buf, sh_buf_tmp, w); if(simple_mode) { mask_res = LV_DRAW_MASK_RES_CHANGED; } else { mask_res = lv_draw_mask_apply(mask_buf, fa.x1, fa.y1, w); if(mask_res == LV_DRAW_MASK_RES_FULL_COVER) mask_res = LV_DRAW_MASK_RES_CHANGED; } _lv_blend_fill(clip, &fa, dsc->shadow_color, mask_buf, mask_res, dsc->shadow_opa, dsc->blend_mode); fa.y1++; fa.y2++; } } } /*Invert the shadow corner buffer and draw the corners on the left*/ sh_buf_tmp = sh_buf ; for(y = 0; y < corner_size; y++) { int32_t x; for(x = 0; x < corner_size / 2; x++) { lv_opa_t tmp = sh_buf_tmp[x]; sh_buf_tmp[x] = sh_buf_tmp[corner_size - x - 1]; sh_buf_tmp[corner_size - x - 1] = tmp; } sh_buf_tmp += corner_size; } /*Draw the top left corner*/ a.x1 = sh_area.x1; a.x2 = a.x1 + corner_size - 1; a.y1 = sh_area.y1; a.y2 = a.y1 + corner_size - 1; has_com = _lv_area_intersect(&ca, &a, clip); if(has_com && _lv_area_is_in(&a, &bg_coords, r_bg) == false) { /*Avoid overlap in the middle with large radius*/ if(ca.y2 > h_half) ca.y2 = h_half; if(ca.x2 > w_half) ca.x2 = w_half; lv_coord_t h = lv_area_get_height(&ca); lv_coord_t w = lv_area_get_width(&ca); if(w > 0) { sh_buf_tmp = sh_buf + (ca.x1 - a.x1); sh_buf_tmp += corner_size * (ca.y1 - a.y1); lv_area_t fa; lv_area_copy(&fa, &ca); fa.y2 = fa.y1; for(y = 0; y < h; y++) { lv_memcpy(mask_buf, sh_buf_tmp, w); mask_res = lv_draw_mask_apply(mask_buf, fa.x1, fa.y1, w); if(mask_res == LV_DRAW_MASK_RES_FULL_COVER) mask_res = LV_DRAW_MASK_RES_CHANGED; _lv_blend_fill(clip, &fa, dsc->shadow_color, mask_buf, mask_res, opa, dsc->blend_mode); fa.y1++; fa.y2++; sh_buf_tmp += corner_size; } } } /*Draw the bottom left corner*/ a.x1 = sh_area.x1; a.x2 = a.x1 + corner_size - 1; a.y1 = sh_area.y2 - corner_size + 1; a.y2 = sh_area.y2; has_com = _lv_area_intersect(&ca, &a, clip); if(has_com && _lv_area_is_in(&a, &bg_coords, r_bg) == false) { /*Avoid overlap in the middle with large radius*/ if(ca.y1 <= h_half) ca.y1 = h_half + 1; if(ca.x2 > w_half) ca.x2 = w_half; lv_coord_t h = lv_area_get_height(&ca); lv_coord_t w = lv_area_get_width(&ca); if(w > 0) { sh_buf_tmp = sh_buf + (ca.x1 - a.x1); sh_buf_tmp += corner_size * (a.y2 - ca.y2); lv_area_t fa; lv_area_copy(&fa, &ca); fa.y1 = fa.y2; /*Fill from bottom to top*/ for(y = 0; y < h; y++) { lv_memcpy(mask_buf, sh_buf_tmp, w); mask_res = lv_draw_mask_apply(mask_buf, fa.x1, fa.y1, w); if(mask_res == LV_DRAW_MASK_RES_FULL_COVER) mask_res = LV_DRAW_MASK_RES_CHANGED; _lv_blend_fill(clip, &fa, dsc->shadow_color, mask_buf, mask_res, opa, dsc->blend_mode); fa.y1--; fa.y2--; sh_buf_tmp += corner_size; } } } /*Fill the left side*/ a.x1 = sh_area.x1; a.x2 = a.x1 + corner_size - 1; a.y1 = sh_area.y1 + corner_size; a.y2 = sh_area.y2 - corner_size; has_com = _lv_area_intersect(&ca, &a, clip); if(has_com && _lv_area_is_in(&a, &bg_coords, r_bg) == false) { /*Avoid overlap in the middle with large radius*/ if(ca.x2 > w_half) ca.x2 = w_half; if(simple_mode) ca.x2 = LV_MIN(coords->x1, ca.x2); /*Draw vertical lines*/ lv_coord_t w = lv_area_get_width(&ca); if(w > 0) { lv_coord_t h = lv_area_get_height(&ca); /*The last line of the shadow is repeated on the side*/ sh_buf_tmp = sh_buf + corner_size * (corner_size - 1); sh_buf_tmp += ca.x1 - a.x1; lv_area_t fa; lv_area_copy(&fa, &ca); fa.y2 = fa.y1; for(y = 0; y < h; y++) { lv_memcpy(mask_buf, sh_buf_tmp, w); if(simple_mode) { mask_res = LV_DRAW_MASK_RES_CHANGED; } else { mask_res = lv_draw_mask_apply(mask_buf, fa.x1, fa.y1, w); if(mask_res == LV_DRAW_MASK_RES_FULL_COVER) mask_res = LV_DRAW_MASK_RES_CHANGED; } _lv_blend_fill(clip, &fa, dsc->shadow_color, mask_buf, mask_res, dsc->shadow_opa, dsc->blend_mode); fa.y1++; fa.y2++; } } } /*Fill the top side*/ a.x1 = sh_area.x1 + corner_size; a.x2 = sh_area.x2 - corner_size; a.y1 = sh_area.y1; a.y2 = sh_area.y1 + corner_size - 1; has_com = _lv_area_intersect(&ca, &a, clip); if(has_com && _lv_area_is_in(&a, &bg_coords, r_bg) == false) { /*Avoid overlap in the middle with large radius*/ if(ca.y2 > h_half) ca.y2 = h_half; if(simple_mode) ca.y2 = LV_MIN(ca.y2, coords->y1); /*Draw horizontal lines*/ lv_coord_t w = lv_area_get_width(&ca); lv_coord_t h = lv_area_get_height(&ca); sh_buf_tmp = sh_buf + corner_size - 1; sh_buf_tmp += corner_size * (ca.y1 - a.y1); lv_area_t fa; lv_area_copy(&fa, &ca); fa.y2 = fa.y1; mask_res = LV_DRAW_MASK_RES_FULL_COVER; for(y = 0; y < h; y++) { lv_opa_t opa_tmp = sh_buf_tmp[0]; if(opa_tmp != LV_OPA_COVER || opa != LV_OPA_COVER) opa_tmp = (opa * opa_tmp) >> 8; lv_memset(mask_buf, opa_tmp, w); if(simple_mode) { mask_res = LV_DRAW_MASK_RES_CHANGED; } else { mask_res = lv_draw_mask_apply(mask_buf, fa.x1, fa.y1, w); if(mask_res == LV_DRAW_MASK_RES_FULL_COVER) mask_res = LV_DRAW_MASK_RES_CHANGED; } _lv_blend_fill(clip, &fa, dsc->shadow_color, mask_buf, mask_res, LV_OPA_COVER, dsc->blend_mode); fa.y1++; fa.y2++; sh_buf_tmp += corner_size; } } /*Fill the bottom side*/ a.x1 = sh_area.x1 + corner_size; a.x2 = sh_area.x2 - corner_size; a.y1 = sh_area.y2 - corner_size + 1; a.y2 = sh_area.y2; has_com = _lv_area_intersect(&ca, &a, clip); if(has_com && _lv_area_is_in(&a, &bg_coords, r_bg) == false) { /*Avoid overlap in the middle with large radius*/ if(ca.y1 <= h_half) ca.y1 = h_half + 1; if(simple_mode) ca.y1 = LV_MAX(ca.y1, coords->y2); /*Draw horizontal lines*/ lv_coord_t w = lv_area_get_width(&ca); lv_coord_t h = lv_area_get_height(&ca); sh_buf_tmp = sh_buf + corner_size - 1; sh_buf_tmp += corner_size * (a.y2 - ca.y2); lv_area_t fa; lv_area_copy(&fa, &ca); fa.y1 = fa.y2; for(y = 0; y < h; y++) { lv_opa_t opa_tmp = sh_buf_tmp[0]; if(opa_tmp != LV_OPA_COVER || opa != LV_OPA_COVER) opa_tmp = (opa * opa_tmp) >> 8; lv_memset(mask_buf, opa_tmp, w); if(simple_mode) { mask_res = LV_DRAW_MASK_RES_CHANGED; } else { mask_res = lv_draw_mask_apply(mask_buf, fa.x1, fa.y1, w); if(mask_res == LV_DRAW_MASK_RES_FULL_COVER) mask_res = LV_DRAW_MASK_RES_CHANGED; } _lv_blend_fill(clip, &fa, dsc->shadow_color, mask_buf, mask_res, LV_OPA_COVER, dsc->blend_mode); fa.y1--; fa.y2--; sh_buf_tmp += corner_size; } } /*Draw the middle area*/ a.x1 = sh_area.x1 + corner_size; a.x2 = sh_area.x2 - corner_size; a.y1 = sh_area.y1 + corner_size; a.y2 = sh_area.y2 - corner_size; has_com = _lv_area_intersect(&ca, &a, clip); if(has_com && simple_mode == false && _lv_area_is_in(&a, &bg_coords, r_bg) == false) { /*Draw horizontal lines*/ lv_coord_t w = lv_area_get_width(&ca); lv_coord_t h = lv_area_get_height(&ca); lv_area_t fa; lv_area_copy(&fa, &ca); fa.y2 = fa.y1; for(y = 0; y < h; y++) { lv_memset(mask_buf, dsc->shadow_opa, w); mask_res = lv_draw_mask_apply(mask_buf, fa.x1, fa.y1, w); if(mask_res == LV_DRAW_MASK_RES_FULL_COVER) mask_res = LV_DRAW_MASK_RES_CHANGED; _lv_blend_fill(clip, &fa, dsc->shadow_color, mask_buf, mask_res, LV_OPA_COVER, dsc->blend_mode); fa.y1++; fa.y2++; } } lv_draw_mask_remove_id(mask_rout_id); lv_mem_buf_release(mask_buf); lv_mem_buf_release(sh_buf); } /** * Calculate a blurred corner * @param coords Coordinates of the shadow * @param sh_buf a buffer to store the result. It's size should be `(sw + r)^2 * 2` * @param sw shadow width * @param r radius */ LV_ATTRIBUTE_FAST_MEM static void shadow_draw_corner_buf(const lv_area_t * coords, uint16_t * sh_buf, lv_coord_t sw, lv_coord_t r) { int32_t sw_ori = sw; int32_t size = sw_ori + r; lv_area_t sh_area; lv_area_copy(&sh_area, coords); sh_area.x2 = sw / 2 + r - 1 - ((sw & 1) ? 0 : 1); sh_area.y1 = sw / 2 + 1; sh_area.x1 = sh_area.x2 - lv_area_get_width(coords); sh_area.y2 = sh_area.y1 + lv_area_get_height(coords); lv_draw_mask_radius_param_t mask_param; lv_draw_mask_radius_init(&mask_param, &sh_area, r, false); #if SHADOW_ENHANCE /*Set half shadow width width because blur will be repeated*/ if(sw_ori == 1) sw = 1; else sw = sw_ori >> 1; #endif int32_t y; lv_opa_t * mask_line = lv_mem_buf_get(size); uint16_t * sh_ups_tmp_buf = (uint16_t *)sh_buf; for(y = 0; y < size; y++) { lv_memset_ff(mask_line, size); lv_draw_mask_res_t mask_res = mask_param.dsc.cb(mask_line, 0, y, size, &mask_param); if(mask_res == LV_DRAW_MASK_RES_TRANSP) { lv_memset_00(sh_ups_tmp_buf, size * sizeof(sh_ups_tmp_buf[0])); } else { int32_t i; sh_ups_tmp_buf[0] = (mask_line[0] << SHADOW_UPSCALE_SHIFT) / sw; for(i = 1; i < size; i++) { if(mask_line[i] == mask_line[i - 1]) sh_ups_tmp_buf[i] = sh_ups_tmp_buf[i - 1]; else sh_ups_tmp_buf[i] = (mask_line[i] << SHADOW_UPSCALE_SHIFT) / sw; } } sh_ups_tmp_buf += size; } lv_mem_buf_release(mask_line); if(sw == 1) { int32_t i; lv_opa_t * res_buf = (lv_opa_t *)sh_buf; for(i = 0; i < size * size; i++) { res_buf[i] = (sh_buf[i] >> SHADOW_UPSCALE_SHIFT); } return; } shadow_blur_corner(size, sw, sh_buf); #if SHADOW_ENHANCE == 0 /*The result is required in lv_opa_t not uint16_t*/ uint32_t x; lv_opa_t * res_buf = (lv_opa_t *)sh_buf; for(x = 0; x < size * size; x++) { res_buf[x] = sh_buf[x]; } #else sw += sw_ori & 1; if(sw > 1) { uint32_t i; sh_buf[0] = (sh_buf[0] << SHADOW_UPSCALE_SHIFT) / sw; for(i = 1; i < (uint32_t) size * size; i++) { if(sh_buf[i] == sh_buf[i - 1]) sh_buf[i] = sh_buf[i - 1]; else sh_buf[i] = (sh_buf[i] << SHADOW_UPSCALE_SHIFT) / sw; } shadow_blur_corner(size, sw, sh_buf); } int32_t x; lv_opa_t * res_buf = (lv_opa_t *)sh_buf; for(x = 0; x < size * size; x++) { res_buf[x] = sh_buf[x]; } #endif } LV_ATTRIBUTE_FAST_MEM static void shadow_blur_corner(lv_coord_t size, lv_coord_t sw, uint16_t * sh_ups_buf) { int32_t s_left = sw >> 1; int32_t s_right = (sw >> 1); if((sw & 1) == 0) s_left--; /*Horizontal blur*/ uint16_t * sh_ups_blur_buf = lv_mem_buf_get(size * sizeof(uint16_t)); int32_t x; int32_t y; uint16_t * sh_ups_tmp_buf = sh_ups_buf; for(y = 0; y < size; y++) { int32_t v = sh_ups_tmp_buf[size - 1] * sw; for(x = size - 1; x >= 0; x--) { sh_ups_blur_buf[x] = v; /*Forget the right pixel*/ uint32_t right_val = 0; if(x + s_right < size) right_val = sh_ups_tmp_buf[x + s_right]; v -= right_val; /*Add the left pixel*/ uint32_t left_val; if(x - s_left - 1 < 0) left_val = sh_ups_tmp_buf[0]; else left_val = sh_ups_tmp_buf[x - s_left - 1]; v += left_val; } lv_memcpy(sh_ups_tmp_buf, sh_ups_blur_buf, size * sizeof(uint16_t)); sh_ups_tmp_buf += size; } /*Vertical blur*/ uint32_t i; sh_ups_buf[0] = sh_ups_buf[0] / sw; for(i = 1; i < (uint32_t)size * size; i++) { if(sh_ups_buf[i] == sh_ups_buf[i - 1]) sh_ups_buf[i] = sh_ups_buf[i - 1]; else sh_ups_buf[i] = sh_ups_buf[i] / sw; } for(x = 0; x < size; x++) { sh_ups_tmp_buf = &sh_ups_buf[x]; int32_t v = sh_ups_tmp_buf[0] * sw; for(y = 0; y < size ; y++, sh_ups_tmp_buf += size) { sh_ups_blur_buf[y] = v < 0 ? 0 : (v >> SHADOW_UPSCALE_SHIFT); /*Forget the top pixel*/ uint32_t top_val; if(y - s_right <= 0) top_val = sh_ups_tmp_buf[0]; else top_val = sh_ups_buf[(y - s_right) * size + x]; v -= top_val; /*Add the bottom pixel*/ uint32_t bottom_val; if(y + s_left + 1 < size) bottom_val = sh_ups_buf[(y + s_left + 1) * size + x]; else bottom_val = sh_ups_buf[(size - 1) * size + x]; v += bottom_val; } /*Write back the result into `sh_ups_buf`*/ sh_ups_tmp_buf = &sh_ups_buf[x]; for(y = 0; y < size; y++, sh_ups_tmp_buf += size) { (*sh_ups_tmp_buf) = sh_ups_blur_buf[y]; } } lv_mem_buf_release(sh_ups_blur_buf); } #endif static void draw_outline(const lv_area_t * coords, const lv_area_t * clip, const lv_draw_rect_dsc_t * dsc) { if(dsc->outline_opa <= LV_OPA_MIN) return; if(dsc->outline_width == 0) return; lv_opa_t opa = dsc->outline_opa; if(opa > LV_OPA_MAX) opa = LV_OPA_COVER; /*Get the inner radius*/ lv_area_t area_inner; lv_area_copy(&area_inner, coords); /*Extend the outline into the background area if it's overlapping the edge*/ lv_coord_t pad = (dsc->outline_pad == 0 ? (dsc->outline_pad - 1) : dsc->outline_pad); area_inner.x1 -= pad; area_inner.y1 -= pad; area_inner.x2 += pad; area_inner.y2 += pad; lv_area_t area_outer; lv_area_copy(&area_outer, &area_inner); area_outer.x1 -= dsc->outline_width; area_outer.x2 += dsc->outline_width; area_outer.y1 -= dsc->outline_width; area_outer.y2 += dsc->outline_width; #if LV_DRAW_COMPLEX draw_full_border(&area_inner, &area_outer, clip, dsc->radius, true, dsc->outline_color, dsc->outline_opa, dsc->blend_mode); #else draw_simple_border(clip, &area_inner, &area_outer, dsc->outline_color, dsc->outline_opa, LV_BORDER_SIDE_FULL); #endif } #if LV_DRAW_COMPLEX static void draw_full_border(const lv_area_t * area_inner, const lv_area_t * area_outer, const lv_area_t * clip, lv_coord_t radius, bool radius_is_in, lv_color_t color, lv_opa_t opa, lv_blend_mode_t blend_mode) { uint8_t other_mask_cnt = lv_draw_mask_get_cnt(); bool simple_mode = true; if(other_mask_cnt) simple_mode = false; int32_t inner_w = lv_area_get_width(area_inner); int32_t inner_h = lv_area_get_height(area_inner); lv_coord_t border_width = area_outer->x2 - area_inner->x2; int32_t coords_out_w = lv_area_get_width(area_outer); int32_t coords_out_h = lv_area_get_height(area_outer); int32_t rin; int32_t rout; if(radius_is_in) { rin = radius; int32_t short_side = LV_MIN(inner_w, inner_h); if(rin > short_side >> 1) rin = short_side >> 1; /*Get the outer area*/ rout = rin + border_width; } else { rout = radius; int32_t short_side = LV_MIN(coords_out_w, coords_out_h); if(rout > short_side >> 1) rout = short_side >> 1; /*Get the outer area*/ rin = rout - border_width; if(rin < 0) rin = 0; } lv_disp_t * disp = _lv_refr_get_disp_refreshing(); lv_disp_draw_buf_t * draw_buf = lv_disp_get_draw_buf(disp); /*Get clipped fill area which is the real draw area. *It is always the same or inside `fill_area`*/ lv_area_t draw_area; bool is_common; is_common = _lv_area_intersect(&draw_area, area_outer, clip); if(is_common == false) return; const lv_area_t * disp_area = &draw_buf->area; /*Now `draw_area` has absolute coordinates. *Make it relative to `disp_area` to simplify draw to `disp_buf`*/ draw_area.x1 -= disp_area->x1; draw_area.y1 -= disp_area->y1; draw_area.x2 -= disp_area->x1; draw_area.y2 -= disp_area->y1; int32_t draw_area_w = lv_area_get_width(&draw_area); /*Create inner the mask*/ lv_draw_mask_radius_param_t mask_rin_param; lv_draw_mask_radius_init(&mask_rin_param, area_inner, rin, true); int16_t mask_rin_id = lv_draw_mask_add(&mask_rin_param, NULL); lv_draw_mask_radius_param_t mask_rout_param; lv_draw_mask_radius_init(&mask_rout_param, area_outer, rout, false); int16_t mask_rout_id = lv_draw_mask_add(&mask_rout_param, NULL); lv_opa_t * mask_buf = lv_mem_buf_get(draw_area_w); int32_t corner_size = LV_MAX(rout, border_width - 1); int32_t h; lv_draw_mask_res_t mask_res; lv_area_t fill_area; /*Apply some optimization if there is no other mask*/ if(simple_mode) { /*Draw the upper corner area*/ int32_t upper_corner_end = area_outer->y1 - disp_area->y1 + corner_size; fill_area.x1 = area_outer->x1; fill_area.x2 = area_outer->x2; fill_area.y1 = disp_area->y1 + draw_area.y1; fill_area.y2 = fill_area.y1; for(h = draw_area.y1; h <= upper_corner_end; h++) { lv_memset_ff(mask_buf, draw_area_w); mask_res = lv_draw_mask_apply(mask_buf, draw_buf->area.x1 + draw_area.x1, draw_buf->area.y1 + h, draw_area_w); lv_area_t fill_area2; fill_area2.y1 = fill_area.y1; fill_area2.y2 = fill_area.y2; fill_area2.x1 = area_outer->x1; fill_area2.x2 = area_outer->x1 + rout - 1; _lv_blend_fill(clip, &fill_area2, color, mask_buf, mask_res, opa, blend_mode); /*Draw the top horizontal line*/ if(fill_area2.y2 < area_outer->y1 + border_width) { fill_area2.x1 = area_outer->x1 + rout; fill_area2.x2 = area_outer->x2 - rout; _lv_blend_fill(clip, &fill_area2, color, NULL, LV_DRAW_MASK_RES_FULL_COVER, opa, blend_mode); } fill_area2.x1 = area_outer->x2 - rout + 1; fill_area2.x2 = area_outer->x2; int32_t mask_ofs = (area_outer->x2 - rout + 1) - (draw_buf->area.x1 + draw_area.x1); if(mask_ofs < 0) mask_ofs = 0; _lv_blend_fill(clip, &fill_area2, color, mask_buf + mask_ofs, mask_res, opa, blend_mode); fill_area.y1++; fill_area.y2++; } /*Draw the lower corner area*/ int32_t lower_corner_end = area_outer->y2 - disp_area->y1 - corner_size; if(lower_corner_end <= upper_corner_end) lower_corner_end = upper_corner_end + 1; fill_area.y1 = disp_area->y1 + lower_corner_end; fill_area.y2 = fill_area.y1; for(h = lower_corner_end; h <= draw_area.y2; h++) { lv_memset_ff(mask_buf, draw_area_w); mask_res = lv_draw_mask_apply(mask_buf, draw_buf->area.x1 + draw_area.x1, draw_buf->area.y1 + h, draw_area_w); lv_area_t fill_area2; fill_area2.x1 = area_outer->x1; fill_area2.x2 = area_outer->x1 + rout - 1; fill_area2.y1 = fill_area.y1; fill_area2.y2 = fill_area.y2; _lv_blend_fill(clip, &fill_area2, color, mask_buf, mask_res, opa, blend_mode); /*Draw the bottom horizontal line*/ if(fill_area2.y2 > area_outer->y2 - border_width) { fill_area2.x1 = area_outer->x1 + rout; fill_area2.x2 = area_outer->x2 - rout; _lv_blend_fill(clip, &fill_area2, color, NULL, LV_DRAW_MASK_RES_FULL_COVER, opa, blend_mode); } fill_area2.x1 = area_outer->x2 - rout + 1; fill_area2.x2 = area_outer->x2; int32_t mask_ofs = (area_outer->x2 - rout + 1) - (draw_buf->area.x1 + draw_area.x1); if(mask_ofs < 0) mask_ofs = 0; _lv_blend_fill(clip, &fill_area2, color, mask_buf + mask_ofs, mask_res, opa, blend_mode); fill_area.y1++; fill_area.y2++; } /*Draw the left vertical part*/ fill_area.y1 = area_outer->y1 + corner_size + 1; fill_area.y2 = area_outer->y2 - corner_size - 1; fill_area.x1 = area_outer->x1; fill_area.x2 = area_outer->x1 + border_width - 1; _lv_blend_fill(clip, &fill_area, color, NULL, LV_DRAW_MASK_RES_FULL_COVER, opa, blend_mode); /*Draw the right vertical border*/ fill_area.x1 = area_outer->x2 - border_width + 1; fill_area.x2 = area_outer->x2; _lv_blend_fill(clip, &fill_area, color, NULL, LV_DRAW_MASK_RES_FULL_COVER, opa, blend_mode); } /*Process line by line if there is other mask too*/ else { fill_area.x1 = area_outer->x1; fill_area.x2 = area_outer->x2; fill_area.y1 = disp_area->y1 + draw_area.y1; fill_area.y2 = fill_area.y1; for(h = draw_area.y1; h <= draw_area.y2; h++) { lv_memset_ff(mask_buf, draw_area_w); mask_res = lv_draw_mask_apply(mask_buf, draw_buf->area.x1 + draw_area.x1, draw_buf->area.y1 + h, draw_area_w); _lv_blend_fill(clip, &fill_area, color, mask_buf, mask_res, opa, blend_mode); fill_area.y1++; fill_area.y2++; } } lv_draw_mask_remove_id(mask_rin_id); lv_draw_mask_remove_id(mask_rout_id); lv_mem_buf_release(mask_buf); } #else /*LV_DRAW_COMPLEX*/ static void draw_simple_border(const lv_area_t * clip, const lv_area_t * area_inner, const lv_area_t * area_outer, lv_color_t color, lv_opa_t opa, lv_border_side_t side) { lv_area_t a; /*Top*/ a.x1 = area_outer->x1; a.x2 = area_outer->x2; a.y1 = area_outer->y1; a.y2 = area_inner->y1; if(side & LV_BORDER_SIDE_TOP) { _lv_blend_fill(clip, &a, color, NULL, LV_DRAW_MASK_RES_FULL_COVER, opa, LV_BLEND_MODE_NORMAL); } /*Bottom*/ a.y1 = area_inner->y2; a.y2 = area_outer->y2; if(side & LV_BORDER_SIDE_BOTTOM) { _lv_blend_fill(clip, &a, color, NULL, LV_DRAW_MASK_RES_FULL_COVER, opa, LV_BLEND_MODE_NORMAL); } /*Left*/ a.x1 = area_outer->x1; a.x2 = area_inner->x1; a.y1 = (side & LV_BORDER_SIDE_TOP) ? area_inner->y1 : area_outer->y1; a.y2 = (side & LV_BORDER_SIDE_BOTTOM) ? area_inner->y2 : area_outer->y2; if(side & LV_BORDER_SIDE_LEFT) { _lv_blend_fill(clip, &a, color, NULL, LV_DRAW_MASK_RES_FULL_COVER, opa, LV_BLEND_MODE_NORMAL); } /*Right*/ a.x1 = area_inner->x2; a.x2 = area_outer->x2; if(side & LV_BORDER_SIDE_RIGHT) { _lv_blend_fill(clip, &a, color, NULL, LV_DRAW_MASK_RES_FULL_COVER, opa, LV_BLEND_MODE_NORMAL); } } #endif