1442 lines
51 KiB
C
1442 lines
51 KiB
C
/**
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* @file lv_draw_rect.c
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*
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*/
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/*********************
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* INCLUDES
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*********************/
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#include "lv_draw_rect.h"
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#include "lv_draw_blend.h"
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#include "lv_draw_mask.h"
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#include "../misc/lv_math.h"
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#include "../misc/lv_txt_ap.h"
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#include "../core/lv_refr.h"
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#include "../misc/lv_assert.h"
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/*********************
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* DEFINES
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*********************/
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#define SHADOW_UPSCALE_SHIFT 6
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#define SHADOW_ENHANCE 1
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#define SPLIT_LIMIT 50
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/**********************
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* TYPEDEFS
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**********************/
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/**********************
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* STATIC PROTOTYPES
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**********************/
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LV_ATTRIBUTE_FAST_MEM static void draw_bg(const lv_area_t * coords, const lv_area_t * clip,
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const lv_draw_rect_dsc_t * dsc);
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LV_ATTRIBUTE_FAST_MEM static void draw_bg_img(const lv_area_t * coords, const lv_area_t * clip,
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const lv_draw_rect_dsc_t * dsc);
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LV_ATTRIBUTE_FAST_MEM static void draw_border(const lv_area_t * coords, const lv_area_t * clip,
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const lv_draw_rect_dsc_t * dsc);
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static void draw_outline(const lv_area_t * coords, const lv_area_t * clip, const lv_draw_rect_dsc_t * dsc);
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#if LV_DRAW_COMPLEX
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LV_ATTRIBUTE_FAST_MEM static void draw_shadow(const lv_area_t * coords, const lv_area_t * clip,
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const lv_draw_rect_dsc_t * dsc);
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LV_ATTRIBUTE_FAST_MEM static void shadow_draw_corner_buf(const lv_area_t * coords, uint16_t * sh_buf, lv_coord_t s,
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lv_coord_t r);
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LV_ATTRIBUTE_FAST_MEM static void shadow_blur_corner(lv_coord_t size, lv_coord_t sw, uint16_t * sh_ups_buf);
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static void draw_full_border(const lv_area_t * area_inner, const lv_area_t * area_outer, const lv_area_t * clip,
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lv_coord_t radius, bool radius_is_in, lv_color_t color, lv_opa_t opa, lv_blend_mode_t blend_mode);
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#else
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static void draw_simple_border(const lv_area_t * clip, const lv_area_t * area_inner, const lv_area_t * area_outer,
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lv_color_t color, lv_opa_t opa, lv_border_side_t side);
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#endif
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#if LV_DRAW_COMPLEX
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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);
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#endif
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/**********************
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* STATIC VARIABLES
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**********************/
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#if defined(LV_SHADOW_CACHE_SIZE) && LV_SHADOW_CACHE_SIZE > 0
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static uint8_t sh_cache[LV_SHADOW_CACHE_SIZE * LV_SHADOW_CACHE_SIZE];
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static int32_t sh_cache_size = -1;
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static int32_t sh_cache_r = -1;
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#endif
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/**********************
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* MACROS
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**********************/
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/**********************
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* GLOBAL FUNCTIONS
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**********************/
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LV_ATTRIBUTE_FAST_MEM void lv_draw_rect_dsc_init(lv_draw_rect_dsc_t * dsc)
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{
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lv_memset_00(dsc, sizeof(lv_draw_rect_dsc_t));
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dsc->bg_color = lv_color_white();
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dsc->bg_grad_color = lv_color_black();
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dsc->border_color = lv_color_black();
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dsc->shadow_color = lv_color_black();
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dsc->bg_grad_color_stop = 0xFF;
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dsc->bg_img_symbol_font = LV_FONT_DEFAULT;
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dsc->bg_opa = LV_OPA_COVER;
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dsc->bg_img_opa = LV_OPA_COVER;
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dsc->outline_opa = LV_OPA_COVER;
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dsc->border_opa = LV_OPA_COVER;
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dsc->shadow_opa = LV_OPA_COVER;
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dsc->border_side = LV_BORDER_SIDE_FULL;
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}
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/**
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* Draw a rectangle
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* @param coords the coordinates of the rectangle
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* @param mask the rectangle will be drawn only in this mask
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* @param dsc pointer to an initialized `lv_draw_rect_dsc_t` variable
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*/
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void lv_draw_rect(const lv_area_t * coords, const lv_area_t * clip, const lv_draw_rect_dsc_t * dsc)
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{
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if(lv_area_get_height(coords) < 1 || lv_area_get_width(coords) < 1) return;
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#if LV_DRAW_COMPLEX
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draw_shadow(coords, clip, dsc);
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#endif
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draw_bg(coords, clip, dsc);
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draw_bg_img(coords, clip, dsc);
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draw_border(coords, clip, dsc);
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draw_outline(coords, clip, dsc);
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LV_ASSERT_MEM_INTEGRITY();
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}
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/**********************
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* STATIC FUNCTIONS
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**********************/
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LV_ATTRIBUTE_FAST_MEM static void draw_bg(const lv_area_t * coords, const lv_area_t * clip,
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const lv_draw_rect_dsc_t * dsc)
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{
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if(dsc->bg_opa <= LV_OPA_MIN) return;
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lv_area_t coords_bg;
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lv_area_copy(&coords_bg, coords);
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/*If the border fully covers make the bg area 1px smaller to avoid artifacts on the corners*/
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if(dsc->border_width > 1 && dsc->border_opa >= LV_OPA_MAX && dsc->radius != 0) {
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coords_bg.x1 += (dsc->border_side & LV_BORDER_SIDE_LEFT) ? 1 : 0;
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coords_bg.y1 += (dsc->border_side & LV_BORDER_SIDE_TOP) ? 1 : 0;
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coords_bg.x2 -= (dsc->border_side & LV_BORDER_SIDE_RIGHT) ? 1 : 0;
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coords_bg.y2 -= (dsc->border_side & LV_BORDER_SIDE_BOTTOM) ? 1 : 0;
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}
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lv_opa_t opa = dsc->bg_opa;
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if(opa > LV_OPA_MAX) opa = LV_OPA_COVER;
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lv_disp_t * disp = _lv_refr_get_disp_refreshing();
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lv_disp_draw_buf_t * draw_buf = lv_disp_get_draw_buf(disp);
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/*Get clipped fill area which is the real draw area.
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*It is always the same or inside `fill_area`*/
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lv_area_t draw_area;
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bool is_common;
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is_common = _lv_area_intersect(&draw_area, &coords_bg, clip);
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if(is_common == false) return;
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const lv_area_t * disp_area = &draw_buf->area;
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/*Now `draw_area` has absolute coordinates.
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*Make it relative to `disp_area` to simplify draw to `disp_buf`*/
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draw_area.x1 -= disp_area->x1;
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draw_area.y1 -= disp_area->y1;
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draw_area.x2 -= disp_area->x1;
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draw_area.y2 -= disp_area->y1;
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lv_grad_dir_t grad_dir = dsc->bg_grad_dir;
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if(dsc->bg_color.full == dsc->bg_grad_color.full) grad_dir = LV_GRAD_DIR_NONE;
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uint16_t other_mask_cnt = lv_draw_mask_get_cnt();
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bool simple_mode = true;
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if(other_mask_cnt) simple_mode = false;
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else if(grad_dir == LV_GRAD_DIR_HOR) simple_mode = false;
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int32_t coords_w = lv_area_get_width(&coords_bg);
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int32_t coords_h = lv_area_get_height(&coords_bg);
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/*Get the real radius*/
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int32_t rout = dsc->radius;
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int32_t short_side = LV_MIN(coords_w, coords_h);
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if(rout > short_side >> 1) rout = short_side >> 1;
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/*Most simple case: just a plain rectangle*/
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if(simple_mode && rout == 0 && (grad_dir == LV_GRAD_DIR_NONE)) {
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_lv_blend_fill(clip, &coords_bg,
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dsc->bg_color, NULL, LV_DRAW_MASK_RES_FULL_COVER, opa,
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dsc->blend_mode);
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}
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#if LV_DRAW_COMPLEX
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/*More complex case: there is a radius, gradient or other mask.*/
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else {
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int32_t draw_area_w = lv_area_get_width(&draw_area);
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int16_t mask_rout_id = LV_MASK_ID_INV;
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lv_opa_t * mask_buf = lv_mem_buf_get(draw_area_w);
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lv_draw_mask_radius_param_t mask_rout_param;
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if(rout > 0) {
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lv_draw_mask_radius_init(&mask_rout_param, &coords_bg, rout, false);
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mask_rout_id = lv_draw_mask_add(&mask_rout_param, NULL);
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}
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/*Draw the background line by line*/
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int32_t h;
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lv_draw_mask_res_t mask_res = LV_DRAW_MASK_RES_FULL_COVER;
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lv_color_t grad_color = dsc->bg_color;
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/*In case of horizontal gradient pre-compute a line with a gradient*/
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lv_color_t * grad_map = NULL;
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if(grad_dir == LV_GRAD_DIR_HOR) {
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grad_map = lv_mem_buf_get(coords_w * sizeof(lv_color_t));
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int32_t i;
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for(i = 0; i < coords_w; i++) {
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grad_map[i] = grad_get(dsc, coords_w, i);
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}
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}
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bool split = false;
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if(lv_area_get_width(&coords_bg) - 2 * rout > SPLIT_LIMIT) split = true;
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lv_opa_t opa2;
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lv_area_t fill_area;
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fill_area.x1 = coords_bg.x1;
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fill_area.x2 = coords_bg.x2;
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fill_area.y1 = disp_area->y1 + draw_area.y1;
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fill_area.y2 = fill_area.y1;
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for(h = draw_area.y1; h <= draw_area.y2; h++) {
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int32_t y = h + draw_buf->area.y1;
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opa2 = opa;
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/*In not corner areas apply the mask only if required*/
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if(y > coords_bg.y1 + rout + 1 &&
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y < coords_bg.y2 - rout - 1) {
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mask_res = LV_DRAW_MASK_RES_FULL_COVER;
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if(simple_mode == false) {
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lv_memset(mask_buf, opa, draw_area_w);
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mask_res = lv_draw_mask_apply(mask_buf, draw_buf->area.x1 + draw_area.x1, draw_buf->area.y1 + h, draw_area_w);
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}
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}
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/*In corner areas apply the mask anyway*/
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else {
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lv_memset(mask_buf, opa, draw_area_w);
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mask_res = lv_draw_mask_apply(mask_buf, draw_buf->area.x1 + draw_area.x1, draw_buf->area.y1 + h, draw_area_w);
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}
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/*If mask will taken into account its base opacity was already set by memset above*/
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if(mask_res == LV_DRAW_MASK_RES_CHANGED) {
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opa2 = LV_OPA_COVER;
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}
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/*Get the current line color*/
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if(grad_dir == LV_GRAD_DIR_VER) {
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grad_color = grad_get(dsc, lv_area_get_height(&coords_bg), y - coords_bg.y1);
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}
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/*If there is not other mask and drawing the corner area split the drawing to corner and middle areas
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*because it the middle mask shouldn't be taken into account (therefore its faster)*/
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if(simple_mode && split &&
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(y < coords_bg.y1 + rout + 1 ||
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y > coords_bg.y2 - rout - 1)) {
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/*Left part*/
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lv_area_t fill_area2;
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fill_area2.x1 = coords_bg.x1;
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fill_area2.x2 = coords_bg.x1 + rout - 1;
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fill_area2.y1 = fill_area.y1;
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fill_area2.y2 = fill_area.y2;
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_lv_blend_fill(clip, &fill_area2,
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grad_color, mask_buf, mask_res, opa2, dsc->blend_mode);
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/*Center part*/
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if(grad_dir == LV_GRAD_DIR_VER) {
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fill_area2.x1 = coords_bg.x1 + rout;
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fill_area2.x2 = coords_bg.x2 - rout;
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_lv_blend_fill(clip, &fill_area2,
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grad_color, NULL, LV_DRAW_MASK_RES_FULL_COVER, opa, dsc->blend_mode);
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}
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/*Right part*/
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fill_area2.x1 = coords_bg.x2 - rout + 1;
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fill_area2.x2 = coords_bg.x2;
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int32_t mask_ofs = (coords_bg.x2 - rout + 1) - (draw_buf->area.x1 + draw_area.x1);
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if(mask_ofs < 0) mask_ofs = 0;
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_lv_blend_fill(clip, &fill_area2,
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grad_color, mask_buf + mask_ofs, mask_res, opa2, dsc->blend_mode);
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}
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else {
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if(grad_dir == LV_GRAD_DIR_HOR) {
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_lv_blend_map(clip, &fill_area, grad_map, mask_buf, mask_res, opa2, dsc->blend_mode);
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}
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else if(grad_dir == LV_GRAD_DIR_VER) {
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_lv_blend_fill(clip, &fill_area,
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grad_color, mask_buf, mask_res, opa2, dsc->blend_mode);
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}
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else if(other_mask_cnt != 0 || !split) {
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_lv_blend_fill(clip, &fill_area,
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grad_color, mask_buf, mask_res, opa2, dsc->blend_mode);
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}
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}
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fill_area.y1++;
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fill_area.y2++;
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}
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if(grad_dir == LV_GRAD_DIR_NONE && other_mask_cnt == 0 && split) {
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/*Central part*/
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fill_area.x1 = coords_bg.x1 + rout;
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fill_area.x2 = coords_bg.x2 - rout;
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fill_area.y1 = coords_bg.y1;
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fill_area.y2 = coords_bg.y1 + rout;
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_lv_blend_fill(clip, &fill_area,
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dsc->bg_color, NULL, LV_DRAW_MASK_RES_FULL_COVER, opa, dsc->blend_mode);
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fill_area.y1 = coords_bg.y2 - rout;
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if(fill_area.y1 <= fill_area.y2) fill_area.y1 = fill_area.y2 + 1; /*Avoid overdrawing the last line*/
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fill_area.y2 = coords_bg.y2;
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_lv_blend_fill(clip, &fill_area,
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dsc->bg_color, NULL, LV_DRAW_MASK_RES_FULL_COVER, opa, dsc->blend_mode);
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fill_area.x1 = coords_bg.x1;
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fill_area.x2 = coords_bg.x2;
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fill_area.y1 = coords_bg.y1 + rout + 1;
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fill_area.y2 = coords_bg.y2 - rout - 1;
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_lv_blend_fill(clip, &fill_area,
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dsc->bg_color, NULL, LV_DRAW_MASK_RES_FULL_COVER, opa, dsc->blend_mode);
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}
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if(grad_map) lv_mem_buf_release(grad_map);
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if(mask_buf) lv_mem_buf_release(mask_buf);
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lv_draw_mask_remove_id(mask_rout_id);
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}
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#endif
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}
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LV_ATTRIBUTE_FAST_MEM static void draw_bg_img(const lv_area_t * coords, const lv_area_t * clip,
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const lv_draw_rect_dsc_t * dsc)
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{
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if(dsc->bg_img_src == NULL) return;
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if(dsc->bg_img_opa <= LV_OPA_MIN) return;
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lv_img_src_t src_type = lv_img_src_get_type(dsc->bg_img_src);
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if(src_type == LV_IMG_SRC_SYMBOL) {
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lv_point_t size;
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lv_txt_get_size(&size, dsc->bg_img_src, dsc->bg_img_symbol_font, 0, 0, LV_COORD_MAX, LV_TEXT_FLAG_NONE);
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lv_area_t a;
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a.x1 = coords->x1 + lv_area_get_width(coords) / 2 - size.x / 2;
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a.x2 = a.x1 + size.x - 1;
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a.y1 = coords->y1 + lv_area_get_height(coords) / 2 - size.y / 2;
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a.y2 = a.y1 + size.y - 1;
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lv_draw_label_dsc_t label_draw_dsc;
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lv_draw_label_dsc_init(&label_draw_dsc);
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label_draw_dsc.font = dsc->bg_img_symbol_font;
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label_draw_dsc.color = dsc->bg_img_recolor;
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label_draw_dsc.opa = dsc->bg_img_opa;
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lv_draw_label(&a, clip, &label_draw_dsc, dsc->bg_img_src, NULL);
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}
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else {
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lv_img_header_t header;
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lv_res_t res = lv_img_decoder_get_info(dsc->bg_img_src, &header);
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if(res != LV_RES_OK) {
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LV_LOG_WARN("Coudn't read the background image");
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return;
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}
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lv_draw_img_dsc_t img_dsc;
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lv_draw_img_dsc_init(&img_dsc);
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img_dsc.blend_mode = dsc->blend_mode;
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img_dsc.recolor = dsc->bg_img_recolor;
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img_dsc.recolor_opa = dsc->bg_img_recolor_opa;
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img_dsc.opa = dsc->bg_img_opa;
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/*Center align*/
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if(dsc->bg_img_tiled == false) {
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lv_area_t area;
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area.x1 = coords->x1 + lv_area_get_width(coords) / 2 - header.w / 2;
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area.y1 = coords->y1 + lv_area_get_height(coords) / 2 - header.h / 2;
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area.x2 = area.x1 + header.w - 1;
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area.y2 = area.y1 + header.h - 1;
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lv_draw_img(&area, clip, dsc->bg_img_src, &img_dsc);
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} else {
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lv_area_t area;
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area.y1 = coords->y1;
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area.y2 = area.y1 + header.h - 1;
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for(; area.y1 <= coords->y2; area.y1 += header.h, area.y2 += header.h) {
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area.x1 = coords->x1;
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area.x2 = area.x1 + header.w - 1;
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for(; area.x1 <= coords->x2; area.x1 += header.w, area.x2 += header.w) {
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lv_draw_img(&area, clip, dsc->bg_img_src, &img_dsc);
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}
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}
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}
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}
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}
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LV_ATTRIBUTE_FAST_MEM static void draw_border(const lv_area_t * coords, const lv_area_t * clip,
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const lv_draw_rect_dsc_t * dsc)
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{
|
|
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
|
|
|