mirror of
https://github.com/CTCaer/hekate
synced 2024-09-07 00:29:00 +00:00
1436 lines
55 KiB
C
1436 lines
55 KiB
C
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/**
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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_misc/lv_circ.h"
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#include "../lv_misc/lv_math.h"
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/*********************
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* DEFINES
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*********************/
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#define CIRCLE_AA_NON_LINEAR_OPA_THRESHOLD 5 /*Circle segment greater then this value will be anti-aliased by a non-linear (cos) opacity mapping*/
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#define SHADOW_OPA_EXTRA_PRECISION 8 /*Calculate with 2^x bigger shadow opacity values to avoid rounding errors*/
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#define SHADOW_BOTTOM_AA_EXTRA_RADIUS 3 /*Add extra radius with LV_SHADOW_BOTTOM to cover anti-aliased corners*/
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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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static void lv_draw_rect_main_mid(const lv_area_t * coords, const lv_area_t * mask, const lv_style_t * style, lv_opa_t opa_scale);
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static void lv_draw_rect_main_corner(const lv_area_t * coords, const lv_area_t * mask, const lv_style_t * style, lv_opa_t opa_scale);
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static void lv_draw_rect_border_straight(const lv_area_t * coords, const lv_area_t * mask, const lv_style_t * style, lv_opa_t opa_scale);
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static void lv_draw_rect_border_corner(const lv_area_t * coords, const lv_area_t * mask, const lv_style_t * style, lv_opa_t opa_scale);
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#if USE_LV_SHADOW && LV_VDB_SIZE
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static void lv_draw_shadow(const lv_area_t * coords, const lv_area_t * mask, const lv_style_t * style, lv_opa_t opa_scale);
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static void lv_draw_shadow_full(const lv_area_t * coords, const lv_area_t * mask, const lv_style_t * style, lv_opa_t opa_scale);
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static void lv_draw_shadow_bottom(const lv_area_t * coords, const lv_area_t * mask, const lv_style_t * style, lv_opa_t opa_scale);
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static void lv_draw_shadow_full_straight(const lv_area_t * coords, const lv_area_t * mask, const lv_style_t * style, const lv_opa_t * map);
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#endif
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static uint16_t lv_draw_cont_radius_corr(uint16_t r, lv_coord_t w, lv_coord_t h);
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#if LV_ANTIALIAS
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static lv_opa_t antialias_get_opa_circ(lv_coord_t seg, lv_coord_t px_id, lv_opa_t opa);
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#endif
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/**********************
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* STATIC VARIABLES
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**********************/
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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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/**
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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 style pointer to a style
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* @param opa_scale scale down all opacities by the factor
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*/
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void lv_draw_rect(const lv_area_t * coords, const lv_area_t * mask, const lv_style_t * style, lv_opa_t opa_scale)
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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 USE_LV_SHADOW && LV_VDB_SIZE
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if(style->body.shadow.width != 0) {
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lv_draw_shadow(coords, mask, style, opa_scale);
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}
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#endif
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if(style->body.empty == 0 && style->body.opa >= LV_OPA_MIN) {
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lv_draw_rect_main_mid(coords, mask, style, opa_scale);
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if(style->body.radius != 0) {
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lv_draw_rect_main_corner(coords, mask, style, opa_scale);
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}
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}
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if(style->body.border.width != 0 && style->body.border.part != LV_BORDER_NONE && style->body.border.opa >= LV_OPA_MIN) {
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lv_draw_rect_border_straight(coords, mask, style, opa_scale);
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if(style->body.radius != 0) {
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lv_draw_rect_border_corner(coords, mask, style, opa_scale);
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}
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}
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}
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/**********************
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* STATIC FUNCTIONS
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**********************/
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/**
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* Draw the middle part (rectangular) of a rectangle
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* @param coords the coordinates of the original rectangle
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* @param mask the rectangle will be drawn only on this area
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* @param rects_p pointer to a rectangle style
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* @param opa_scale scale down all opacities by the factor
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*/
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static void lv_draw_rect_main_mid(const lv_area_t * coords, const lv_area_t * mask, const lv_style_t * style, lv_opa_t opa_scale)
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{
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uint16_t radius = style->body.radius;
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lv_color_t mcolor = style->body.main_color;
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lv_color_t gcolor = style->body.grad_color;
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uint8_t mix;
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lv_coord_t height = lv_area_get_height(coords);
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lv_coord_t width = lv_area_get_width(coords);
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lv_opa_t opa = opa_scale == LV_OPA_COVER ? style->body.opa : (uint16_t)((uint16_t) style->body.opa * opa_scale) >> 8;
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radius = lv_draw_cont_radius_corr(radius, width, height);
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/*If the radius is too big then there is no body*/
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if(radius > height / 2) return;
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lv_area_t work_area;
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work_area.x1 = coords->x1;
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work_area.x2 = coords->x2;
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if(mcolor.full == gcolor.full) {
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work_area.y1 = coords->y1 + radius;
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work_area.y2 = coords->y2 - radius;
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if(style->body.radius != 0) {
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#if LV_ANTIALIAS
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work_area.y1 += 2;
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work_area.y2 -= 2;
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#else
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work_area.y1 += 1;
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work_area.y2 -= 1;
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#endif
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}
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fill_fp(&work_area, mask, mcolor, opa);
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} else {
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lv_coord_t row;
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lv_coord_t row_start = coords->y1 + radius;
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lv_coord_t row_end = coords->y2 - radius;
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lv_color_t act_color;
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if(style->body.radius != 0) {
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#if LV_ANTIALIAS
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row_start += 2;
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row_end -= 2;
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#else
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row_start += 1;
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row_end -= 1;
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#endif
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}
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if(row_start < 0) row_start = 0;
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for(row = row_start; row <= row_end; row ++) {
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work_area.y1 = row;
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work_area.y2 = row;
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mix = (uint32_t)((uint32_t)(coords->y2 - work_area.y1) * 255) / height;
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act_color = lv_color_mix(mcolor, gcolor, mix);
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fill_fp(&work_area, mask, act_color, opa);
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}
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}
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}
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/**
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* Draw the top and bottom parts (corners) of a rectangle
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* @param coords the coordinates of the original rectangle
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* @param mask the rectangle will be drawn only on this area
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* @param rects_p pointer to a rectangle style
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* @param opa_scale scale down all opacities by the factor
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*/
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static void lv_draw_rect_main_corner(const lv_area_t * coords, const lv_area_t * mask, const lv_style_t * style, lv_opa_t opa_scale)
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{
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uint16_t radius = style->body.radius;
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lv_color_t mcolor = style->body.main_color;
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lv_color_t gcolor = style->body.grad_color;
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lv_color_t act_color;
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lv_opa_t opa = opa_scale == LV_OPA_COVER ? style->body.opa : (uint16_t)((uint16_t) style->body.opa * opa_scale) >> 8;
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uint8_t mix;
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lv_coord_t height = lv_area_get_height(coords);
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lv_coord_t width = lv_area_get_width(coords);
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radius = lv_draw_cont_radius_corr(radius, width, height);
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lv_point_t lt_origo; /*Left Top origo*/
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lv_point_t lb_origo; /*Left Bottom origo*/
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lv_point_t rt_origo; /*Right Top origo*/
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lv_point_t rb_origo; /*Left Bottom origo*/
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lt_origo.x = coords->x1 + radius + LV_ANTIALIAS;
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lt_origo.y = coords->y1 + radius + LV_ANTIALIAS;
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lb_origo.x = coords->x1 + radius + LV_ANTIALIAS;
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lb_origo.y = coords->y2 - radius - LV_ANTIALIAS;
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rt_origo.x = coords->x2 - radius - LV_ANTIALIAS;
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rt_origo.y = coords->y1 + radius + LV_ANTIALIAS;
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rb_origo.x = coords->x2 - radius - LV_ANTIALIAS;
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rb_origo.y = coords->y2 - radius - LV_ANTIALIAS;
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lv_area_t edge_top_area;
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lv_area_t mid_top_area;
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lv_area_t mid_bot_area;
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lv_area_t edge_bot_area;
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lv_point_t cir;
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lv_coord_t cir_tmp;
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lv_circ_init(&cir, &cir_tmp, radius);
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/*Init the areas*/
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lv_area_set(&mid_bot_area, lb_origo.x + LV_CIRC_OCT4_X(cir),
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lb_origo.y + LV_CIRC_OCT4_Y(cir),
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rb_origo.x + LV_CIRC_OCT1_X(cir),
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rb_origo.y + LV_CIRC_OCT1_Y(cir));
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lv_area_set(&edge_bot_area, lb_origo.x + LV_CIRC_OCT3_X(cir),
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lb_origo.y + LV_CIRC_OCT3_Y(cir),
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rb_origo.x + LV_CIRC_OCT2_X(cir),
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rb_origo.y + LV_CIRC_OCT2_Y(cir));
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lv_area_set(&mid_top_area, lt_origo.x + LV_CIRC_OCT5_X(cir),
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lt_origo.y + LV_CIRC_OCT5_Y(cir),
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rt_origo.x + LV_CIRC_OCT8_X(cir),
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rt_origo.y + LV_CIRC_OCT8_Y(cir));
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lv_area_set(&edge_top_area, lt_origo.x + LV_CIRC_OCT6_X(cir),
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lt_origo.y + LV_CIRC_OCT6_Y(cir),
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rt_origo.x + LV_CIRC_OCT7_X(cir),
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rt_origo.y + LV_CIRC_OCT7_Y(cir));
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#if LV_ANTIALIAS
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/*Store some internal states for anti-aliasing*/
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lv_coord_t out_y_seg_start = 0;
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lv_coord_t out_y_seg_end = 0;
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lv_coord_t out_x_last = radius;
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lv_color_t aa_color_hor_top;
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lv_color_t aa_color_hor_bottom;
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lv_color_t aa_color_ver;
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#endif
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while(lv_circ_cont(&cir)) {
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#if LV_ANTIALIAS != 0
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/*New step in y on the outter circle*/
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if(out_x_last != cir.x) {
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out_y_seg_end = cir.y;
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lv_coord_t seg_size = out_y_seg_end - out_y_seg_start;
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lv_point_t aa_p;
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aa_p.x = out_x_last;
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aa_p.y = out_y_seg_start;
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mix = (uint32_t)((uint32_t)(radius - out_x_last) * 255) / height;
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aa_color_hor_top = lv_color_mix(gcolor, mcolor, mix);
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aa_color_hor_bottom = lv_color_mix(mcolor, gcolor, mix);
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lv_coord_t i;
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for(i = 0; i < seg_size; i++) {
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lv_opa_t aa_opa;
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if(seg_size > CIRCLE_AA_NON_LINEAR_OPA_THRESHOLD) { /*Use non-linear opa mapping on the first segment*/
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aa_opa = antialias_get_opa_circ(seg_size, i, opa);
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} else {
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aa_opa = opa - lv_draw_aa_get_opa(seg_size, i, opa);
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}
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px_fp(rb_origo.x + LV_CIRC_OCT2_X(aa_p) + i, rb_origo.y + LV_CIRC_OCT2_Y(aa_p) + 1, mask, aa_color_hor_bottom, aa_opa);
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px_fp(lb_origo.x + LV_CIRC_OCT3_X(aa_p) - i, lb_origo.y + LV_CIRC_OCT3_Y(aa_p) + 1, mask, aa_color_hor_bottom, aa_opa);
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px_fp(lt_origo.x + LV_CIRC_OCT6_X(aa_p) - i, lt_origo.y + LV_CIRC_OCT6_Y(aa_p) - 1, mask, aa_color_hor_top, aa_opa);
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px_fp(rt_origo.x + LV_CIRC_OCT7_X(aa_p) + i, rt_origo.y + LV_CIRC_OCT7_Y(aa_p) - 1, mask, aa_color_hor_top, aa_opa);
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mix = (uint32_t)((uint32_t)(radius - out_y_seg_start + i) * 255) / height;
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aa_color_ver = lv_color_mix(mcolor, gcolor, mix);
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px_fp(rb_origo.x + LV_CIRC_OCT1_X(aa_p) + 1, rb_origo.y + LV_CIRC_OCT1_Y(aa_p) + i, mask, aa_color_ver, aa_opa);
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px_fp(lb_origo.x + LV_CIRC_OCT4_X(aa_p) - 1, lb_origo.y + LV_CIRC_OCT4_Y(aa_p) + i, mask, aa_color_ver, aa_opa);
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aa_color_ver = lv_color_mix(gcolor, mcolor, mix);
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px_fp(lt_origo.x + LV_CIRC_OCT5_X(aa_p) - 1, lt_origo.y + LV_CIRC_OCT5_Y(aa_p) - i, mask, aa_color_ver, aa_opa);
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px_fp(rt_origo.x + LV_CIRC_OCT8_X(aa_p) + 1, rt_origo.y + LV_CIRC_OCT8_Y(aa_p) - i, mask, aa_color_ver, aa_opa);
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}
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out_x_last = cir.x;
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out_y_seg_start = out_y_seg_end;
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}
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#endif
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uint8_t edge_top_refr = 0;
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uint8_t mid_top_refr = 0;
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uint8_t mid_bot_refr = 0;
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uint8_t edge_bot_refr = 0;
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/* If a new row coming draw the previous
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* The y coordinate can remain the same so wait for a new*/
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if(mid_bot_area.y1 != LV_CIRC_OCT4_Y(cir) + lb_origo.y) mid_bot_refr = 1;
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if(edge_bot_area.y1 != LV_CIRC_OCT2_Y(cir) + lb_origo.y) edge_bot_refr = 1;
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if(mid_top_area.y1 != LV_CIRC_OCT8_Y(cir) + lt_origo.y) mid_top_refr = 1;
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if(edge_top_area.y1 != LV_CIRC_OCT7_Y(cir) + lt_origo.y) edge_top_refr = 1;
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/*Draw the areas which are not disabled*/
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if(edge_top_refr != 0) {
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if(mcolor.full == gcolor.full) act_color = mcolor;
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else {
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mix = (uint32_t)((uint32_t)(coords->y2 - edge_top_area.y1) * 255) / height;
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act_color = lv_color_mix(mcolor, gcolor, mix);
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}
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fill_fp(&edge_top_area, mask, act_color, opa);
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}
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if(mid_top_refr != 0) {
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if(mcolor.full == gcolor.full) act_color = mcolor;
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else {
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mix = (uint32_t)((uint32_t)(coords->y2 - mid_top_area.y1) * 255) / height;
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act_color = lv_color_mix(mcolor, gcolor, mix);
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}
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fill_fp(&mid_top_area, mask, act_color, opa);
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}
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if(mid_bot_refr != 0) {
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if(mcolor.full == gcolor.full) act_color = mcolor;
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else {
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mix = (uint32_t)((uint32_t)(coords->y2 - mid_bot_area.y1) * 255) / height;
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act_color = lv_color_mix(mcolor, gcolor, mix);
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}
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fill_fp(&mid_bot_area, mask, act_color, opa);
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}
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if(edge_bot_refr != 0) {
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if(mcolor.full == gcolor.full) act_color = mcolor;
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else {
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mix = (uint32_t)((uint32_t)(coords->y2 - edge_bot_area.y1) * 255) / height;
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act_color = lv_color_mix(mcolor, gcolor, mix);
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}
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||
|
fill_fp(&edge_bot_area, mask, act_color, opa);
|
||
|
}
|
||
|
|
||
|
/*Save the current coordinates*/
|
||
|
lv_area_set(&mid_bot_area, lb_origo.x + LV_CIRC_OCT4_X(cir),
|
||
|
lb_origo.y + LV_CIRC_OCT4_Y(cir),
|
||
|
rb_origo.x + LV_CIRC_OCT1_X(cir),
|
||
|
rb_origo.y + LV_CIRC_OCT1_Y(cir));
|
||
|
|
||
|
lv_area_set(&edge_bot_area, lb_origo.x + LV_CIRC_OCT3_X(cir),
|
||
|
lb_origo.y + LV_CIRC_OCT3_Y(cir),
|
||
|
rb_origo.x + LV_CIRC_OCT2_X(cir),
|
||
|
rb_origo.y + LV_CIRC_OCT2_Y(cir));
|
||
|
|
||
|
lv_area_set(&mid_top_area, lt_origo.x + LV_CIRC_OCT5_X(cir),
|
||
|
lt_origo.y + LV_CIRC_OCT5_Y(cir),
|
||
|
rt_origo.x + LV_CIRC_OCT8_X(cir),
|
||
|
rt_origo.y + LV_CIRC_OCT8_Y(cir));
|
||
|
|
||
|
lv_area_set(&edge_top_area, lt_origo.x + LV_CIRC_OCT6_X(cir),
|
||
|
lt_origo.y + LV_CIRC_OCT6_Y(cir),
|
||
|
rt_origo.x + LV_CIRC_OCT7_X(cir),
|
||
|
rt_origo.y + LV_CIRC_OCT7_Y(cir));
|
||
|
|
||
|
lv_circ_next(&cir, &cir_tmp);
|
||
|
}
|
||
|
|
||
|
if(mcolor.full == gcolor.full) act_color = mcolor;
|
||
|
else {
|
||
|
mix = (uint32_t)((uint32_t)(coords->y2 - edge_top_area.y1) * 255) / height;
|
||
|
act_color = lv_color_mix(mcolor, gcolor, mix);
|
||
|
}
|
||
|
fill_fp(&edge_top_area, mask, act_color, opa);
|
||
|
|
||
|
if(edge_top_area.y1 != mid_top_area.y1) {
|
||
|
|
||
|
if(mcolor.full == gcolor.full) act_color = mcolor;
|
||
|
else {
|
||
|
mix = (uint32_t)((uint32_t)(coords->y2 - mid_top_area.y1) * 255) / height;
|
||
|
act_color = lv_color_mix(mcolor, gcolor, mix);
|
||
|
}
|
||
|
fill_fp(&mid_top_area, mask, act_color, opa);
|
||
|
}
|
||
|
|
||
|
if(mcolor.full == gcolor.full) act_color = mcolor;
|
||
|
else {
|
||
|
mix = (uint32_t)((uint32_t)(coords->y2 - mid_bot_area.y1) * 255) / height;
|
||
|
act_color = lv_color_mix(mcolor, gcolor, mix);
|
||
|
}
|
||
|
fill_fp(&mid_bot_area, mask, act_color, opa);
|
||
|
|
||
|
if(edge_bot_area.y1 != mid_bot_area.y1) {
|
||
|
|
||
|
if(mcolor.full == gcolor.full) act_color = mcolor;
|
||
|
else {
|
||
|
mix = (uint32_t)((uint32_t)(coords->y2 - edge_bot_area.y1) * 255) / height;
|
||
|
act_color = lv_color_mix(mcolor, gcolor, mix);
|
||
|
}
|
||
|
fill_fp(&edge_bot_area, mask, act_color, opa);
|
||
|
}
|
||
|
|
||
|
|
||
|
#if LV_ANTIALIAS
|
||
|
/*The first and the last line is not drawn*/
|
||
|
edge_top_area.x1 = coords->x1 + radius + 2;
|
||
|
edge_top_area.x2 = coords->x2 - radius - 2;
|
||
|
edge_top_area.y1 = coords->y1;
|
||
|
edge_top_area.y2 = coords->y1;
|
||
|
fill_fp(&edge_top_area, mask, style->body.main_color, opa);
|
||
|
|
||
|
edge_top_area.y1 = coords->y2;
|
||
|
edge_top_area.y2 = coords->y2;
|
||
|
fill_fp(&edge_top_area, mask, style->body.grad_color, opa);
|
||
|
|
||
|
/*Last parts of the anti-alias*/
|
||
|
out_y_seg_end = cir.y;
|
||
|
lv_coord_t seg_size = out_y_seg_end - out_y_seg_start;
|
||
|
lv_point_t aa_p;
|
||
|
|
||
|
aa_p.x = out_x_last;
|
||
|
aa_p.y = out_y_seg_start;
|
||
|
|
||
|
mix = (uint32_t)((uint32_t)(radius - out_x_last) * 255) / height;
|
||
|
aa_color_hor_bottom = lv_color_mix(gcolor, mcolor, mix);
|
||
|
aa_color_hor_top = lv_color_mix(mcolor, gcolor, mix);
|
||
|
|
||
|
lv_coord_t i;
|
||
|
for(i = 0; i < seg_size; i++) {
|
||
|
lv_opa_t aa_opa = opa - lv_draw_aa_get_opa(seg_size, i, opa);
|
||
|
px_fp(rb_origo.x + LV_CIRC_OCT2_X(aa_p) + i, rb_origo.y + LV_CIRC_OCT2_Y(aa_p) + 1, mask, aa_color_hor_top, aa_opa);
|
||
|
px_fp(lb_origo.x + LV_CIRC_OCT3_X(aa_p) - i, lb_origo.y + LV_CIRC_OCT3_Y(aa_p) + 1, mask, aa_color_hor_top, aa_opa);
|
||
|
px_fp(lt_origo.x + LV_CIRC_OCT6_X(aa_p) - i, lt_origo.y + LV_CIRC_OCT6_Y(aa_p) - 1, mask, aa_color_hor_bottom, aa_opa);
|
||
|
px_fp(rt_origo.x + LV_CIRC_OCT7_X(aa_p) + i, rt_origo.y + LV_CIRC_OCT7_Y(aa_p) - 1, mask, aa_color_hor_bottom, aa_opa);
|
||
|
|
||
|
mix = (uint32_t)((uint32_t)(radius - out_y_seg_start + i) * 255) / height;
|
||
|
aa_color_ver = lv_color_mix(mcolor, gcolor, mix);
|
||
|
px_fp(rb_origo.x + LV_CIRC_OCT1_X(aa_p) + 1, rb_origo.y + LV_CIRC_OCT1_Y(aa_p) + i, mask, aa_color_ver, aa_opa);
|
||
|
px_fp(lb_origo.x + LV_CIRC_OCT4_X(aa_p) - 1, lb_origo.y + LV_CIRC_OCT4_Y(aa_p) + i, mask, aa_color_ver, aa_opa);
|
||
|
|
||
|
aa_color_ver = lv_color_mix(gcolor, mcolor, mix);
|
||
|
px_fp(lt_origo.x + LV_CIRC_OCT5_X(aa_p) - 1, lt_origo.y + LV_CIRC_OCT5_Y(aa_p) - i, mask, aa_color_ver, aa_opa);
|
||
|
px_fp(rt_origo.x + LV_CIRC_OCT8_X(aa_p) + 1, rt_origo.y + LV_CIRC_OCT8_Y(aa_p) - i, mask, aa_color_ver, aa_opa);
|
||
|
}
|
||
|
|
||
|
/*In some cases the last pixel is not drawn*/
|
||
|
if(LV_MATH_ABS(aa_p.x - aa_p.y) == seg_size) {
|
||
|
aa_p.x = out_x_last;
|
||
|
aa_p.y = out_x_last;
|
||
|
|
||
|
mix = (uint32_t)((uint32_t)(out_x_last) * 255) / height;
|
||
|
aa_color_hor_top = lv_color_mix(gcolor, mcolor, mix);
|
||
|
aa_color_hor_bottom = lv_color_mix(mcolor, gcolor, mix);
|
||
|
|
||
|
lv_opa_t aa_opa = opa >> 1;
|
||
|
px_fp(rb_origo.x + LV_CIRC_OCT2_X(aa_p), rb_origo.y + LV_CIRC_OCT2_Y(aa_p), mask, aa_color_hor_bottom, aa_opa);
|
||
|
px_fp(lb_origo.x + LV_CIRC_OCT4_X(aa_p), lb_origo.y + LV_CIRC_OCT4_Y(aa_p), mask, aa_color_hor_bottom, aa_opa);
|
||
|
px_fp(lt_origo.x + LV_CIRC_OCT6_X(aa_p), lt_origo.y + LV_CIRC_OCT6_Y(aa_p), mask, aa_color_hor_top, aa_opa);
|
||
|
px_fp(rt_origo.x + LV_CIRC_OCT8_X(aa_p), rt_origo.y + LV_CIRC_OCT8_Y(aa_p), mask, aa_color_hor_top, aa_opa);
|
||
|
}
|
||
|
|
||
|
#endif
|
||
|
|
||
|
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* Draw the straight parts of a rectangle border
|
||
|
* @param coords the coordinates of the original rectangle
|
||
|
* @param mask_ the rectangle will be drawn only on this area
|
||
|
* @param rstyle pointer to a rectangle style
|
||
|
* @param opa_scale scale down all opacities by the factor
|
||
|
*/
|
||
|
static void lv_draw_rect_border_straight(const lv_area_t * coords, const lv_area_t * mask, const lv_style_t * style, lv_opa_t opa_scale)
|
||
|
{
|
||
|
uint16_t radius = style->body.radius;
|
||
|
|
||
|
lv_coord_t width = lv_area_get_width(coords);
|
||
|
lv_coord_t height = lv_area_get_height(coords);
|
||
|
uint16_t bwidth = style->body.border.width;
|
||
|
lv_opa_t opa = opa_scale == LV_OPA_COVER ? style->body.border.opa : (uint16_t)((uint16_t) style->body.border.opa * opa_scale) >> 8;
|
||
|
lv_border_part_t part = style->body.border.part;
|
||
|
lv_color_t color = style->body.border.color;
|
||
|
lv_area_t work_area;
|
||
|
lv_coord_t length_corr = 0;
|
||
|
lv_coord_t corner_size = 0;
|
||
|
|
||
|
/*the 0 px border width drawn as 1 px, so decrement the b_width*/
|
||
|
bwidth--;
|
||
|
|
||
|
radius = lv_draw_cont_radius_corr(radius, width, height);
|
||
|
|
||
|
if(radius < bwidth) {
|
||
|
length_corr = bwidth - radius - LV_ANTIALIAS;
|
||
|
corner_size = bwidth;
|
||
|
} else {
|
||
|
corner_size = radius + LV_ANTIALIAS;
|
||
|
}
|
||
|
|
||
|
/*If radius == 0 is a special case*/
|
||
|
if(style->body.radius == 0) {
|
||
|
/*Left top corner*/
|
||
|
if(part & LV_BORDER_TOP) {
|
||
|
work_area.x1 = coords->x1;
|
||
|
work_area.x2 = coords->x2;
|
||
|
work_area.y1 = coords->y1;
|
||
|
work_area.y2 = coords->y1 + bwidth;
|
||
|
fill_fp(&work_area, mask, color, opa);
|
||
|
}
|
||
|
|
||
|
/*Right top corner*/
|
||
|
if(part & LV_BORDER_RIGHT) {
|
||
|
work_area.x1 = coords->x2 - bwidth;
|
||
|
work_area.x2 = coords->x2;
|
||
|
work_area.y1 = coords->y1 + (part & LV_BORDER_TOP ? bwidth + 1 : 0);
|
||
|
work_area.y2 = coords->y2 - (part & LV_BORDER_BOTTOM ? bwidth + 1 : 0);
|
||
|
fill_fp(&work_area, mask, color, opa);
|
||
|
}
|
||
|
|
||
|
/*Left bottom corner*/
|
||
|
if(part & LV_BORDER_LEFT) {
|
||
|
work_area.x1 = coords->x1;
|
||
|
work_area.x2 = coords->x1 + bwidth;
|
||
|
work_area.y1 = coords->y1 + (part & LV_BORDER_TOP ? bwidth + 1 : 0);
|
||
|
work_area.y2 = coords->y2 - (part & LV_BORDER_BOTTOM ? bwidth + 1 : 0);
|
||
|
fill_fp(&work_area, mask, color, opa);
|
||
|
}
|
||
|
|
||
|
/*Right bottom corner*/
|
||
|
if(part & LV_BORDER_BOTTOM) {
|
||
|
work_area.x1 = coords->x1;
|
||
|
work_area.x2 = coords->x2;
|
||
|
work_area.y1 = coords->y2 - bwidth;
|
||
|
work_area.y2 = coords->y2;
|
||
|
fill_fp(&work_area, mask, color, opa);
|
||
|
}
|
||
|
return;
|
||
|
}
|
||
|
|
||
|
/* Modify the corner_size if corner is drawn */
|
||
|
corner_size ++;
|
||
|
|
||
|
/*Depending one which part's are drawn modify the area lengths */
|
||
|
if(part & LV_BORDER_TOP) work_area.y1 = coords->y1 + corner_size;
|
||
|
else work_area.y1 = coords->y1 + radius;
|
||
|
|
||
|
if(part & LV_BORDER_BOTTOM) work_area.y2 = coords->y2 - corner_size;
|
||
|
else work_area.y2 = coords->y2 - radius;
|
||
|
|
||
|
/*Left border*/
|
||
|
if(part & LV_BORDER_LEFT) {
|
||
|
work_area.x1 = coords->x1;
|
||
|
work_area.x2 = work_area.x1 + bwidth;
|
||
|
fill_fp(&work_area, mask, color, opa);
|
||
|
}
|
||
|
|
||
|
/*Right border*/
|
||
|
if(part & LV_BORDER_RIGHT) {
|
||
|
work_area.x2 = coords->x2;
|
||
|
work_area.x1 = work_area.x2 - bwidth;
|
||
|
fill_fp(&work_area, mask, color, opa);
|
||
|
}
|
||
|
|
||
|
work_area.x1 = coords->x1 + corner_size - length_corr;
|
||
|
work_area.x2 = coords->x2 - corner_size + length_corr;
|
||
|
|
||
|
/*Upper border*/
|
||
|
if(part & LV_BORDER_TOP) {
|
||
|
work_area.y1 = coords->y1;
|
||
|
work_area.y2 = coords->y1 + bwidth;
|
||
|
fill_fp(&work_area, mask, color, opa);
|
||
|
}
|
||
|
|
||
|
/*Lower border*/
|
||
|
if(part & LV_BORDER_BOTTOM) {
|
||
|
work_area.y2 = coords->y2;
|
||
|
work_area.y1 = work_area.y2 - bwidth;
|
||
|
fill_fp(&work_area, mask, color, opa);
|
||
|
}
|
||
|
|
||
|
/*Draw the a remaining rectangles if the radius is smaller then bwidth */
|
||
|
if(length_corr != 0) {
|
||
|
/*Left top correction*/
|
||
|
if((part & LV_BORDER_TOP) && (part & LV_BORDER_LEFT)) {
|
||
|
work_area.x1 = coords->x1;
|
||
|
work_area.x2 = coords->x1 + radius + LV_ANTIALIAS;
|
||
|
work_area.y1 = coords->y1 + radius + 1 + LV_ANTIALIAS;
|
||
|
work_area.y2 = coords->y1 + bwidth;
|
||
|
fill_fp(&work_area, mask, color, opa);
|
||
|
}
|
||
|
|
||
|
/*Right top correction*/
|
||
|
if((part & LV_BORDER_TOP) && (part & LV_BORDER_RIGHT)) {
|
||
|
work_area.x1 = coords->x2 - radius - LV_ANTIALIAS;
|
||
|
work_area.x2 = coords->x2;
|
||
|
work_area.y1 = coords->y1 + radius + 1 + LV_ANTIALIAS;
|
||
|
work_area.y2 = coords->y1 + bwidth;
|
||
|
fill_fp(&work_area, mask, color, opa);
|
||
|
}
|
||
|
|
||
|
/*Left bottom correction*/
|
||
|
if((part & LV_BORDER_BOTTOM) && (part & LV_BORDER_LEFT)) {
|
||
|
work_area.x1 = coords->x1;
|
||
|
work_area.x2 = coords->x1 + radius + LV_ANTIALIAS;
|
||
|
work_area.y1 = coords->y2 - bwidth;
|
||
|
work_area.y2 = coords->y2 - radius - 1 - LV_ANTIALIAS;
|
||
|
fill_fp(&work_area, mask, color, opa);
|
||
|
}
|
||
|
|
||
|
/*Right bottom correction*/
|
||
|
if((part & LV_BORDER_BOTTOM) && (part & LV_BORDER_RIGHT)) {
|
||
|
work_area.x1 = coords->x2 - radius - LV_ANTIALIAS;
|
||
|
work_area.x2 = coords->x2;
|
||
|
work_area.y1 = coords->y2 - bwidth;
|
||
|
work_area.y2 = coords->y2 - radius - 1 - LV_ANTIALIAS;
|
||
|
fill_fp(&work_area, mask, color, opa);
|
||
|
}
|
||
|
}
|
||
|
|
||
|
/*If radius == 0 one px on the corners are not drawn by main drawer*/
|
||
|
if(style->body.radius == 0) {
|
||
|
/*Left top corner*/
|
||
|
if(part & (LV_BORDER_TOP | LV_BORDER_LEFT)) {
|
||
|
work_area.x1 = coords->x1;
|
||
|
work_area.x2 = coords->x1 + LV_ANTIALIAS;
|
||
|
work_area.y1 = coords->y1;
|
||
|
work_area.y2 = coords->y1 + LV_ANTIALIAS;
|
||
|
fill_fp(&work_area, mask, color, opa);
|
||
|
}
|
||
|
|
||
|
/*Right top corner*/
|
||
|
if(part & (LV_BORDER_TOP | LV_BORDER_RIGHT)) {
|
||
|
work_area.x1 = coords->x2 - LV_ANTIALIAS;
|
||
|
work_area.x2 = coords->x2;
|
||
|
work_area.y1 = coords->y1;
|
||
|
work_area.y2 = coords->y1 + LV_ANTIALIAS;
|
||
|
fill_fp(&work_area, mask, color, opa);
|
||
|
}
|
||
|
|
||
|
/*Left bottom corner*/
|
||
|
if(part & (LV_BORDER_BOTTOM | LV_BORDER_LEFT)) {
|
||
|
work_area.x1 = coords->x1;
|
||
|
work_area.x2 = coords->x1 + LV_ANTIALIAS;
|
||
|
work_area.y1 = coords->y2 - LV_ANTIALIAS;
|
||
|
work_area.y2 = coords->y2;
|
||
|
fill_fp(&work_area, mask, color, opa);
|
||
|
}
|
||
|
|
||
|
/*Right bottom corner*/
|
||
|
if(part & (LV_BORDER_BOTTOM | LV_BORDER_RIGHT)) {
|
||
|
work_area.x1 = coords->x2 - LV_ANTIALIAS;
|
||
|
work_area.x2 = coords->x2;
|
||
|
work_area.y1 = coords->y2 - LV_ANTIALIAS;
|
||
|
work_area.y2 = coords->y2;
|
||
|
fill_fp(&work_area, mask, color, opa);
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
|
||
|
|
||
|
/**
|
||
|
* Draw the corners of a rectangle border
|
||
|
* @param coords the coordinates of the original rectangle
|
||
|
* @param mask the rectangle will be drawn only on this area
|
||
|
* @param style pointer to a style
|
||
|
* @param opa_scale scale down all opacities by the factor
|
||
|
*/
|
||
|
static void lv_draw_rect_border_corner(const lv_area_t * coords, const lv_area_t * mask, const lv_style_t * style, lv_opa_t opa_scale)
|
||
|
{
|
||
|
uint16_t radius = style->body.radius ;
|
||
|
uint16_t bwidth = style->body.border.width;
|
||
|
lv_color_t color = style->body.border.color;
|
||
|
lv_border_part_t part = style->body.border.part;
|
||
|
lv_opa_t opa = opa_scale == LV_OPA_COVER ? style->body.border.opa : (uint16_t)((uint16_t) style->body.border.opa * opa_scale) >> 8;
|
||
|
/*0 px border width drawn as 1 px, so decrement the bwidth*/
|
||
|
bwidth--;
|
||
|
|
||
|
#if LV_ANTIALIAS
|
||
|
bwidth--; /*Because of anti-aliasing the border seems one pixel ticker*/
|
||
|
#endif
|
||
|
|
||
|
lv_coord_t width = lv_area_get_width(coords);
|
||
|
lv_coord_t height = lv_area_get_height(coords);
|
||
|
|
||
|
radius = lv_draw_cont_radius_corr(radius, width, height);
|
||
|
|
||
|
lv_point_t lt_origo; /*Left Top origo*/
|
||
|
lv_point_t lb_origo; /*Left Bottom origo*/
|
||
|
lv_point_t rt_origo; /*Right Top origo*/
|
||
|
lv_point_t rb_origo; /*Left Bottom origo*/
|
||
|
|
||
|
lt_origo.x = coords->x1 + radius + LV_ANTIALIAS;
|
||
|
lt_origo.y = coords->y1 + radius + LV_ANTIALIAS;
|
||
|
|
||
|
lb_origo.x = coords->x1 + radius + LV_ANTIALIAS;
|
||
|
lb_origo.y = coords->y2 - radius - LV_ANTIALIAS;
|
||
|
|
||
|
rt_origo.x = coords->x2 - radius - LV_ANTIALIAS;
|
||
|
rt_origo.y = coords->y1 + radius + LV_ANTIALIAS;
|
||
|
|
||
|
rb_origo.x = coords->x2 - radius - LV_ANTIALIAS;
|
||
|
rb_origo.y = coords->y2 - radius - LV_ANTIALIAS;
|
||
|
|
||
|
lv_point_t cir_out;
|
||
|
lv_coord_t tmp_out;
|
||
|
lv_circ_init(&cir_out, &tmp_out, radius);
|
||
|
|
||
|
lv_point_t cir_in;
|
||
|
lv_coord_t tmp_in;
|
||
|
lv_coord_t radius_in = radius - bwidth;
|
||
|
|
||
|
if(radius_in < 0) {
|
||
|
radius_in = 0;
|
||
|
}
|
||
|
|
||
|
lv_circ_init(&cir_in, &tmp_in, radius_in);
|
||
|
|
||
|
lv_area_t circ_area;
|
||
|
lv_coord_t act_w1;
|
||
|
lv_coord_t act_w2;
|
||
|
|
||
|
#if LV_ANTIALIAS
|
||
|
/*Store some internal states for anti-aliasing*/
|
||
|
lv_coord_t out_y_seg_start = 0;
|
||
|
lv_coord_t out_y_seg_end = 0;
|
||
|
lv_coord_t out_x_last = radius;
|
||
|
|
||
|
|
||
|
lv_coord_t in_y_seg_start = 0;
|
||
|
lv_coord_t in_y_seg_end = 0;
|
||
|
lv_coord_t in_x_last = radius - bwidth;
|
||
|
#endif
|
||
|
|
||
|
while(cir_out.y <= cir_out.x) {
|
||
|
|
||
|
/*Calculate the actual width to avoid overwriting pixels*/
|
||
|
if(cir_in.y < cir_in.x) {
|
||
|
act_w1 = cir_out.x - cir_in.x;
|
||
|
act_w2 = act_w1;
|
||
|
} else {
|
||
|
act_w1 = cir_out.x - cir_out.y;
|
||
|
act_w2 = act_w1 - 1;
|
||
|
}
|
||
|
|
||
|
#if LV_ANTIALIAS != 0
|
||
|
/*New step in y on the outter circle*/
|
||
|
if(out_x_last != cir_out.x) {
|
||
|
out_y_seg_end = cir_out.y;
|
||
|
lv_coord_t seg_size = out_y_seg_end - out_y_seg_start;
|
||
|
lv_point_t aa_p;
|
||
|
|
||
|
aa_p.x = out_x_last;
|
||
|
aa_p.y = out_y_seg_start;
|
||
|
|
||
|
lv_coord_t i;
|
||
|
for(i = 0; i < seg_size; i++) {
|
||
|
lv_opa_t aa_opa;
|
||
|
|
||
|
if(seg_size > CIRCLE_AA_NON_LINEAR_OPA_THRESHOLD) { /*Use non-linear opa mapping on the first segment*/
|
||
|
aa_opa = antialias_get_opa_circ(seg_size, i, opa);
|
||
|
} else {
|
||
|
aa_opa = opa - lv_draw_aa_get_opa(seg_size, i, opa);
|
||
|
}
|
||
|
|
||
|
if((part & LV_BORDER_BOTTOM) && (part & LV_BORDER_RIGHT)) {
|
||
|
px_fp(rb_origo.x + LV_CIRC_OCT1_X(aa_p) + 1, rb_origo.y + LV_CIRC_OCT1_Y(aa_p) + i, mask, style->body.border.color, aa_opa);
|
||
|
px_fp(rb_origo.x + LV_CIRC_OCT2_X(aa_p) + i, rb_origo.y + LV_CIRC_OCT2_Y(aa_p) + 1, mask, style->body.border.color, aa_opa);
|
||
|
}
|
||
|
|
||
|
if((part & LV_BORDER_BOTTOM) && (part & LV_BORDER_LEFT)) {
|
||
|
px_fp(lb_origo.x + LV_CIRC_OCT3_X(aa_p) - i, lb_origo.y + LV_CIRC_OCT3_Y(aa_p) + 1, mask, style->body.border.color, aa_opa);
|
||
|
px_fp(lb_origo.x + LV_CIRC_OCT4_X(aa_p) - 1, lb_origo.y + LV_CIRC_OCT4_Y(aa_p) + i, mask, style->body.border.color, aa_opa);
|
||
|
}
|
||
|
|
||
|
|
||
|
if((part & LV_BORDER_TOP) && (part & LV_BORDER_LEFT)) {
|
||
|
px_fp(lt_origo.x + LV_CIRC_OCT5_X(aa_p) - 1, lt_origo.y + LV_CIRC_OCT5_Y(aa_p) - i, mask, style->body.border.color, aa_opa);
|
||
|
px_fp(lt_origo.x + LV_CIRC_OCT6_X(aa_p) - i, lt_origo.y + LV_CIRC_OCT6_Y(aa_p) - 1, mask, style->body.border.color, aa_opa);
|
||
|
}
|
||
|
|
||
|
if((part & LV_BORDER_TOP) && (part & LV_BORDER_RIGHT)) {
|
||
|
px_fp(rt_origo.x + LV_CIRC_OCT7_X(aa_p) + i, rt_origo.y + LV_CIRC_OCT7_Y(aa_p) - 1, mask, style->body.border.color, aa_opa);
|
||
|
px_fp(rt_origo.x + LV_CIRC_OCT8_X(aa_p) + 1, rt_origo.y + LV_CIRC_OCT8_Y(aa_p) - i, mask, style->body.border.color, aa_opa);
|
||
|
}
|
||
|
}
|
||
|
|
||
|
out_x_last = cir_out.x;
|
||
|
out_y_seg_start = out_y_seg_end;
|
||
|
}
|
||
|
|
||
|
/*New step in y on the inner circle*/
|
||
|
if(in_x_last != cir_in.x) {
|
||
|
in_y_seg_end = cir_out.y;
|
||
|
lv_coord_t seg_size = in_y_seg_end - in_y_seg_start;
|
||
|
lv_point_t aa_p;
|
||
|
|
||
|
aa_p.x = in_x_last;
|
||
|
aa_p.y = in_y_seg_start;
|
||
|
|
||
|
lv_coord_t i;
|
||
|
for(i = 0; i < seg_size; i++) {
|
||
|
lv_opa_t aa_opa;
|
||
|
|
||
|
if(seg_size > CIRCLE_AA_NON_LINEAR_OPA_THRESHOLD) { /*Use non-linear opa mapping on the first segment*/
|
||
|
aa_opa = opa - antialias_get_opa_circ(seg_size, i, opa);
|
||
|
} else {
|
||
|
aa_opa = lv_draw_aa_get_opa(seg_size, i, opa);
|
||
|
}
|
||
|
|
||
|
if((part & LV_BORDER_BOTTOM) && (part & LV_BORDER_RIGHT)) {
|
||
|
px_fp(rb_origo.x + LV_CIRC_OCT1_X(aa_p) - 1, rb_origo.y + LV_CIRC_OCT1_Y(aa_p) + i, mask, style->body.border.color, aa_opa);
|
||
|
}
|
||
|
|
||
|
if((part & LV_BORDER_BOTTOM) && (part & LV_BORDER_LEFT)) {
|
||
|
px_fp(lb_origo.x + LV_CIRC_OCT3_X(aa_p) - i, lb_origo.y + LV_CIRC_OCT3_Y(aa_p) - 1, mask, style->body.border.color, aa_opa);
|
||
|
}
|
||
|
|
||
|
if((part & LV_BORDER_TOP) && (part & LV_BORDER_LEFT)) {
|
||
|
px_fp(lt_origo.x + LV_CIRC_OCT5_X(aa_p) + 1, lt_origo.y + LV_CIRC_OCT5_Y(aa_p) - i, mask, style->body.border.color, aa_opa);
|
||
|
}
|
||
|
|
||
|
if((part & LV_BORDER_TOP) && (part & LV_BORDER_RIGHT)) {
|
||
|
px_fp(rt_origo.x + LV_CIRC_OCT7_X(aa_p) + i, rt_origo.y + LV_CIRC_OCT7_Y(aa_p) + 1, mask, style->body.border.color, aa_opa);
|
||
|
}
|
||
|
|
||
|
/*Be sure the pixels on the middle are not drawn twice*/
|
||
|
if(LV_CIRC_OCT1_X(aa_p) - 1 != LV_CIRC_OCT2_X(aa_p) + i) {
|
||
|
if((part & LV_BORDER_BOTTOM) && (part & LV_BORDER_RIGHT)) {
|
||
|
px_fp(rb_origo.x + LV_CIRC_OCT2_X(aa_p) + i, rb_origo.y + LV_CIRC_OCT2_Y(aa_p) - 1, mask, style->body.border.color, aa_opa);
|
||
|
}
|
||
|
|
||
|
if((part & LV_BORDER_BOTTOM) && (part & LV_BORDER_LEFT)) {
|
||
|
px_fp(lb_origo.x + LV_CIRC_OCT4_X(aa_p) + 1, lb_origo.y + LV_CIRC_OCT4_Y(aa_p) + i, mask, style->body.border.color, aa_opa);
|
||
|
}
|
||
|
|
||
|
if((part & LV_BORDER_TOP) && (part & LV_BORDER_LEFT)) {
|
||
|
px_fp(lt_origo.x + LV_CIRC_OCT6_X(aa_p) - i, lt_origo.y + LV_CIRC_OCT6_Y(aa_p) + 1, mask, style->body.border.color, aa_opa);
|
||
|
}
|
||
|
|
||
|
if((part & LV_BORDER_TOP) && (part & LV_BORDER_RIGHT)) {
|
||
|
px_fp(rt_origo.x + LV_CIRC_OCT8_X(aa_p) - 1, rt_origo.y + LV_CIRC_OCT8_Y(aa_p) - i, mask, style->body.border.color, aa_opa);
|
||
|
}
|
||
|
}
|
||
|
|
||
|
}
|
||
|
|
||
|
in_x_last = cir_in.x;
|
||
|
in_y_seg_start = in_y_seg_end;
|
||
|
|
||
|
}
|
||
|
|
||
|
#endif
|
||
|
|
||
|
|
||
|
/*Draw the octets to the right bottom corner*/
|
||
|
if((part & LV_BORDER_BOTTOM) && (part & LV_BORDER_RIGHT)) {
|
||
|
circ_area.x1 = rb_origo.x + LV_CIRC_OCT1_X(cir_out) - act_w2;
|
||
|
circ_area.x2 = rb_origo.x + LV_CIRC_OCT1_X(cir_out);
|
||
|
circ_area.y1 = rb_origo.y + LV_CIRC_OCT1_Y(cir_out);
|
||
|
circ_area.y2 = rb_origo.y + LV_CIRC_OCT1_Y(cir_out);
|
||
|
fill_fp(&circ_area, mask, color, opa);
|
||
|
|
||
|
circ_area.x1 = rb_origo.x + LV_CIRC_OCT2_X(cir_out);
|
||
|
circ_area.x2 = rb_origo.x + LV_CIRC_OCT2_X(cir_out);
|
||
|
circ_area.y1 = rb_origo.y + LV_CIRC_OCT2_Y(cir_out) - act_w1;
|
||
|
circ_area.y2 = rb_origo.y + LV_CIRC_OCT2_Y(cir_out);
|
||
|
fill_fp(&circ_area, mask, color, opa);
|
||
|
}
|
||
|
|
||
|
/*Draw the octets to the left bottom corner*/
|
||
|
if((part & LV_BORDER_BOTTOM) && (part & LV_BORDER_LEFT)) {
|
||
|
circ_area.x1 = lb_origo.x + LV_CIRC_OCT3_X(cir_out);
|
||
|
circ_area.x2 = lb_origo.x + LV_CIRC_OCT3_X(cir_out);
|
||
|
circ_area.y1 = lb_origo.y + LV_CIRC_OCT3_Y(cir_out) - act_w2;
|
||
|
circ_area.y2 = lb_origo.y + LV_CIRC_OCT3_Y(cir_out);
|
||
|
fill_fp(&circ_area, mask, color, opa);
|
||
|
|
||
|
circ_area.x1 = lb_origo.x + LV_CIRC_OCT4_X(cir_out);
|
||
|
circ_area.x2 = lb_origo.x + LV_CIRC_OCT4_X(cir_out) + act_w1;
|
||
|
circ_area.y1 = lb_origo.y + LV_CIRC_OCT4_Y(cir_out);
|
||
|
circ_area.y2 = lb_origo.y + LV_CIRC_OCT4_Y(cir_out);
|
||
|
fill_fp(&circ_area, mask, color, opa);
|
||
|
}
|
||
|
|
||
|
/*Draw the octets to the left top corner*/
|
||
|
if((part & LV_BORDER_TOP) && (part & LV_BORDER_LEFT)) {
|
||
|
if(lb_origo.y + LV_CIRC_OCT4_Y(cir_out) > lt_origo.y + LV_CIRC_OCT5_Y(cir_out)) {
|
||
|
/*Don't draw if the lines are common in the middle*/
|
||
|
circ_area.x1 = lt_origo.x + LV_CIRC_OCT5_X(cir_out);
|
||
|
circ_area.x2 = lt_origo.x + LV_CIRC_OCT5_X(cir_out) + act_w2;
|
||
|
circ_area.y1 = lt_origo.y + LV_CIRC_OCT5_Y(cir_out);
|
||
|
circ_area.y2 = lt_origo.y + LV_CIRC_OCT5_Y(cir_out);
|
||
|
fill_fp(&circ_area, mask, color, opa);
|
||
|
}
|
||
|
|
||
|
circ_area.x1 = lt_origo.x + LV_CIRC_OCT6_X(cir_out);
|
||
|
circ_area.x2 = lt_origo.x + LV_CIRC_OCT6_X(cir_out);
|
||
|
circ_area.y1 = lt_origo.y + LV_CIRC_OCT6_Y(cir_out);
|
||
|
circ_area.y2 = lt_origo.y + LV_CIRC_OCT6_Y(cir_out) + act_w1;
|
||
|
fill_fp(&circ_area, mask, color, opa);
|
||
|
}
|
||
|
|
||
|
/*Draw the octets to the right top corner*/
|
||
|
if((part & LV_BORDER_TOP) && (part & LV_BORDER_RIGHT)) {
|
||
|
circ_area.x1 = rt_origo.x + LV_CIRC_OCT7_X(cir_out);
|
||
|
circ_area.x2 = rt_origo.x + LV_CIRC_OCT7_X(cir_out);
|
||
|
circ_area.y1 = rt_origo.y + LV_CIRC_OCT7_Y(cir_out);
|
||
|
circ_area.y2 = rt_origo.y + LV_CIRC_OCT7_Y(cir_out) + act_w2;
|
||
|
fill_fp(&circ_area, mask, color, opa);
|
||
|
|
||
|
/*Don't draw if the lines are common in the middle*/
|
||
|
if(rb_origo.y + LV_CIRC_OCT1_Y(cir_out) > rt_origo.y + LV_CIRC_OCT8_Y(cir_out)) {
|
||
|
circ_area.x1 = rt_origo.x + LV_CIRC_OCT8_X(cir_out) - act_w1;
|
||
|
circ_area.x2 = rt_origo.x + LV_CIRC_OCT8_X(cir_out);
|
||
|
circ_area.y1 = rt_origo.y + LV_CIRC_OCT8_Y(cir_out);
|
||
|
circ_area.y2 = rt_origo.y + LV_CIRC_OCT8_Y(cir_out);
|
||
|
fill_fp(&circ_area, mask, color, opa);
|
||
|
}
|
||
|
}
|
||
|
lv_circ_next(&cir_out, &tmp_out);
|
||
|
|
||
|
/*The internal circle will be ready faster
|
||
|
* so check it! */
|
||
|
if(cir_in.y < cir_in.x) {
|
||
|
lv_circ_next(&cir_in, &tmp_in);
|
||
|
}
|
||
|
}
|
||
|
|
||
|
|
||
|
#if LV_ANTIALIAS != 0
|
||
|
|
||
|
/*Last parts of the outer anti-alias*/
|
||
|
out_y_seg_end = cir_out.y;
|
||
|
lv_coord_t seg_size = out_y_seg_end - out_y_seg_start;
|
||
|
lv_point_t aa_p;
|
||
|
|
||
|
aa_p.x = out_x_last;
|
||
|
aa_p.y = out_y_seg_start;
|
||
|
|
||
|
lv_coord_t i;
|
||
|
for(i = 0; i < seg_size; i++) {
|
||
|
lv_opa_t aa_opa = opa - lv_draw_aa_get_opa(seg_size, i, opa);
|
||
|
if((part & LV_BORDER_BOTTOM) && (part & LV_BORDER_RIGHT)) {
|
||
|
px_fp(rb_origo.x + LV_CIRC_OCT1_X(aa_p) + 1, rb_origo.y + LV_CIRC_OCT1_Y(aa_p) + i, mask, style->body.border.color, aa_opa);
|
||
|
px_fp(rb_origo.x + LV_CIRC_OCT2_X(aa_p) + i, rb_origo.y + LV_CIRC_OCT2_Y(aa_p) + 1, mask, style->body.border.color, aa_opa);
|
||
|
}
|
||
|
|
||
|
if((part & LV_BORDER_BOTTOM) && (part & LV_BORDER_LEFT)) {
|
||
|
px_fp(lb_origo.x + LV_CIRC_OCT3_X(aa_p) - i, lb_origo.y + LV_CIRC_OCT3_Y(aa_p) + 1, mask, style->body.border.color, aa_opa);
|
||
|
px_fp(lb_origo.x + LV_CIRC_OCT4_X(aa_p) - 1, lb_origo.y + LV_CIRC_OCT4_Y(aa_p) + i, mask, style->body.border.color, aa_opa);
|
||
|
}
|
||
|
|
||
|
if((part & LV_BORDER_TOP) && (part & LV_BORDER_LEFT)) {
|
||
|
px_fp(lt_origo.x + LV_CIRC_OCT5_X(aa_p) - 1, lt_origo.y + LV_CIRC_OCT5_Y(aa_p) - i, mask, style->body.border.color, aa_opa);
|
||
|
px_fp(lt_origo.x + LV_CIRC_OCT6_X(aa_p) - i, lt_origo.y + LV_CIRC_OCT6_Y(aa_p) - 1, mask, style->body.border.color, aa_opa);
|
||
|
}
|
||
|
|
||
|
if((part & LV_BORDER_TOP) && (part & LV_BORDER_RIGHT)) {
|
||
|
px_fp(rt_origo.x + LV_CIRC_OCT7_X(aa_p) + i, rt_origo.y + LV_CIRC_OCT7_Y(aa_p) - 1, mask, style->body.border.color, aa_opa);
|
||
|
px_fp(rt_origo.x + LV_CIRC_OCT8_X(aa_p) + 1, rt_origo.y + LV_CIRC_OCT8_Y(aa_p) - i, mask, style->body.border.color, aa_opa);
|
||
|
}
|
||
|
}
|
||
|
|
||
|
/*In some cases the last pixel in the outer middle is not drawn*/
|
||
|
if(LV_MATH_ABS(aa_p.x - aa_p.y) == seg_size) {
|
||
|
aa_p.x = out_x_last;
|
||
|
aa_p.y = out_x_last;
|
||
|
|
||
|
lv_opa_t aa_opa = opa >> 1;
|
||
|
|
||
|
if((part & LV_BORDER_BOTTOM) && (part & LV_BORDER_RIGHT)) {
|
||
|
px_fp(rb_origo.x + LV_CIRC_OCT2_X(aa_p), rb_origo.y + LV_CIRC_OCT2_Y(aa_p), mask, style->body.border.color, aa_opa);
|
||
|
}
|
||
|
|
||
|
if((part & LV_BORDER_BOTTOM) && (part & LV_BORDER_LEFT)) {
|
||
|
px_fp(lb_origo.x + LV_CIRC_OCT4_X(aa_p), lb_origo.y + LV_CIRC_OCT4_Y(aa_p), mask, style->body.border.color, aa_opa);
|
||
|
}
|
||
|
|
||
|
if((part & LV_BORDER_TOP) && (part & LV_BORDER_LEFT)) {
|
||
|
px_fp(lt_origo.x + LV_CIRC_OCT6_X(aa_p), lt_origo.y + LV_CIRC_OCT6_Y(aa_p), mask, style->body.border.color, aa_opa);
|
||
|
}
|
||
|
|
||
|
if((part & LV_BORDER_TOP) && (part & LV_BORDER_RIGHT)) {
|
||
|
px_fp(rt_origo.x + LV_CIRC_OCT8_X(aa_p), rt_origo.y + LV_CIRC_OCT8_Y(aa_p), mask, style->body.border.color, aa_opa);
|
||
|
}
|
||
|
}
|
||
|
|
||
|
/*Last parts of the inner anti-alias*/
|
||
|
in_y_seg_end = cir_in.y;
|
||
|
aa_p.x = in_x_last;
|
||
|
aa_p.y = in_y_seg_start;
|
||
|
seg_size = in_y_seg_end - in_y_seg_start;
|
||
|
|
||
|
for(i = 0; i < seg_size; i++) {
|
||
|
lv_opa_t aa_opa = lv_draw_aa_get_opa(seg_size, i, opa);
|
||
|
if((part & LV_BORDER_BOTTOM) && (part & LV_BORDER_RIGHT)) {
|
||
|
px_fp(rb_origo.x + LV_CIRC_OCT1_X(aa_p) - 1, rb_origo.y + LV_CIRC_OCT1_Y(aa_p) + i, mask, style->body.border.color, aa_opa);
|
||
|
}
|
||
|
|
||
|
if((part & LV_BORDER_BOTTOM) && (part & LV_BORDER_LEFT)) {
|
||
|
px_fp(lb_origo.x + LV_CIRC_OCT3_X(aa_p) - i, lb_origo.y + LV_CIRC_OCT3_Y(aa_p) - 1, mask, style->body.border.color, aa_opa);
|
||
|
}
|
||
|
|
||
|
if((part & LV_BORDER_TOP) && (part & LV_BORDER_LEFT)) {
|
||
|
px_fp(lt_origo.x + LV_CIRC_OCT5_X(aa_p) + 1, lt_origo.y + LV_CIRC_OCT5_Y(aa_p) - i, mask, style->body.border.color, aa_opa);
|
||
|
}
|
||
|
|
||
|
if((part & LV_BORDER_TOP) && (part & LV_BORDER_RIGHT)) {
|
||
|
px_fp(rt_origo.x + LV_CIRC_OCT7_X(aa_p) + i, rt_origo.y + LV_CIRC_OCT7_Y(aa_p) + 1, mask, style->body.border.color, aa_opa);
|
||
|
}
|
||
|
|
||
|
if(LV_CIRC_OCT1_X(aa_p) - 1 != LV_CIRC_OCT2_X(aa_p) + i) {
|
||
|
if((part & LV_BORDER_BOTTOM) && (part & LV_BORDER_RIGHT)) {
|
||
|
px_fp(rb_origo.x + LV_CIRC_OCT2_X(aa_p) + i, rb_origo.y + LV_CIRC_OCT2_Y(aa_p) - 1, mask, style->body.border.color, aa_opa);
|
||
|
}
|
||
|
|
||
|
if((part & LV_BORDER_BOTTOM) && (part & LV_BORDER_LEFT)) {
|
||
|
px_fp(lb_origo.x + LV_CIRC_OCT4_X(aa_p) + 1, lb_origo.y + LV_CIRC_OCT4_Y(aa_p) + i, mask, style->body.border.color, aa_opa);
|
||
|
}
|
||
|
|
||
|
if((part & LV_BORDER_TOP) && (part & LV_BORDER_LEFT)) {
|
||
|
px_fp(lt_origo.x + LV_CIRC_OCT6_X(aa_p) - i, lt_origo.y + LV_CIRC_OCT6_Y(aa_p) + 1, mask, style->body.border.color, aa_opa);
|
||
|
}
|
||
|
|
||
|
if((part & LV_BORDER_TOP) && (part & LV_BORDER_RIGHT)) {
|
||
|
px_fp(rt_origo.x + LV_CIRC_OCT8_X(aa_p) - 1, rt_origo.y + LV_CIRC_OCT8_Y(aa_p) - i, mask, style->body.border.color, aa_opa);
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
|
||
|
#endif
|
||
|
|
||
|
}
|
||
|
|
||
|
#if USE_LV_SHADOW && LV_VDB_SIZE
|
||
|
|
||
|
/**
|
||
|
* Draw a shadow
|
||
|
* @param rect pointer to rectangle object
|
||
|
* @param mask pointer to a mask area (from the design functions)
|
||
|
* @param opa_scale scale down all opacities by the factor
|
||
|
*/
|
||
|
static void lv_draw_shadow(const lv_area_t * coords, const lv_area_t * mask, const lv_style_t * style, lv_opa_t opa_scale)
|
||
|
{
|
||
|
/* If mask is in the middle of cords do not draw shadow*/
|
||
|
lv_coord_t radius = style->body.radius;
|
||
|
lv_coord_t width = lv_area_get_width(coords);
|
||
|
lv_coord_t height = lv_area_get_height(coords);
|
||
|
radius = lv_draw_cont_radius_corr(radius, width, height);
|
||
|
lv_area_t area_tmp;
|
||
|
|
||
|
/*Check horizontally without radius*/
|
||
|
lv_area_copy(&area_tmp, coords);
|
||
|
area_tmp.x1 += radius;
|
||
|
area_tmp.x2 -= radius;
|
||
|
if(lv_area_is_in(mask, &area_tmp) != false) return;
|
||
|
|
||
|
/*Check vertically without radius*/
|
||
|
lv_area_copy(&area_tmp, coords);
|
||
|
area_tmp.y1 += radius;
|
||
|
area_tmp.y2 -= radius;
|
||
|
if(lv_area_is_in(mask, &area_tmp) != false) return;
|
||
|
|
||
|
if(style->body.shadow.type == LV_SHADOW_FULL) {
|
||
|
lv_draw_shadow_full(coords, mask, style, opa_scale);
|
||
|
} else if(style->body.shadow.type == LV_SHADOW_BOTTOM) {
|
||
|
lv_draw_shadow_bottom(coords, mask, style, opa_scale);
|
||
|
}
|
||
|
}
|
||
|
|
||
|
static void lv_draw_shadow_full(const lv_area_t * coords, const lv_area_t * mask, const lv_style_t * style, lv_opa_t opa_scale)
|
||
|
{
|
||
|
|
||
|
/* KNOWN ISSUE
|
||
|
* The algorithm calculates the shadow only above the middle point of the radius (speaking about the left top corner).
|
||
|
* It causes an error because it doesn't consider how long the straight edge is which effects the value of bottom of the corner shadow.
|
||
|
* In addition the straight shadow is drawn from the middles point of the radius however
|
||
|
* the ends of the straight parts still should be effected by the corner shadow.
|
||
|
* It also causes an issue in opacity. A smaller radius means smaller average shadow opacity.
|
||
|
* The solution should be to start `line` from `- swidth` and handle if the straight part is short (or zero) and the value is taken from
|
||
|
* the other corner. `col` also should start from `- swidth`
|
||
|
*/
|
||
|
|
||
|
|
||
|
lv_coord_t radius = style->body.radius;
|
||
|
lv_coord_t swidth = style->body.shadow.width;
|
||
|
|
||
|
lv_coord_t width = lv_area_get_width(coords);
|
||
|
lv_coord_t height = lv_area_get_height(coords);
|
||
|
|
||
|
radius = lv_draw_cont_radius_corr(radius, width, height);
|
||
|
|
||
|
radius += LV_ANTIALIAS;
|
||
|
|
||
|
#if LV_COMPILER_VLA_SUPPORTED
|
||
|
lv_coord_t curve_x[radius + swidth + 1]; /*Stores the 'x' coordinates of a quarter circle.*/
|
||
|
#else
|
||
|
# if LV_HOR_RES > LV_VER_RES
|
||
|
lv_coord_t curve_x[LV_HOR_RES];
|
||
|
# else
|
||
|
lv_coord_t curve_x[LV_VER_RES];
|
||
|
# endif
|
||
|
#endif
|
||
|
memset(curve_x, 0, sizeof(curve_x));
|
||
|
lv_point_t circ;
|
||
|
lv_coord_t circ_tmp;
|
||
|
lv_circ_init(&circ, &circ_tmp, radius);
|
||
|
while(lv_circ_cont(&circ)) {
|
||
|
curve_x[LV_CIRC_OCT1_Y(circ)] = LV_CIRC_OCT1_X(circ);
|
||
|
curve_x[LV_CIRC_OCT2_Y(circ)] = LV_CIRC_OCT2_X(circ);
|
||
|
lv_circ_next(&circ, &circ_tmp);
|
||
|
}
|
||
|
int16_t line;
|
||
|
|
||
|
int16_t filter_width = 2 * swidth + 1;
|
||
|
#if LV_COMPILER_VLA_SUPPORTED
|
||
|
uint32_t line_1d_blur[filter_width];
|
||
|
#else
|
||
|
# if LV_HOR_RES > LV_VER_RES
|
||
|
uint32_t line_1d_blur[LV_HOR_RES];
|
||
|
# else
|
||
|
uint32_t line_1d_blur[LV_VER_RES];
|
||
|
# endif
|
||
|
#endif
|
||
|
/*1D Blur horizontally*/
|
||
|
lv_opa_t opa = opa_scale == LV_OPA_COVER ? style->body.opa : (uint16_t)((uint16_t) style->body.opa * opa_scale) >> 8;
|
||
|
for(line = 0; line < filter_width; line++) {
|
||
|
line_1d_blur[line] = (uint32_t)((uint32_t)(filter_width - line) * (opa * 2) << SHADOW_OPA_EXTRA_PRECISION) / (filter_width * filter_width);
|
||
|
}
|
||
|
|
||
|
uint16_t col;
|
||
|
#if LV_COMPILER_VLA_SUPPORTED
|
||
|
lv_opa_t line_2d_blur[radius + swidth + 1];
|
||
|
#else
|
||
|
# if LV_HOR_RES > LV_VER_RES
|
||
|
lv_opa_t line_2d_blur[LV_HOR_RES];
|
||
|
# else
|
||
|
lv_opa_t line_2d_blur[LV_VER_RES];
|
||
|
# endif
|
||
|
#endif
|
||
|
|
||
|
lv_point_t point_rt;
|
||
|
lv_point_t point_rb;
|
||
|
lv_point_t point_lt;
|
||
|
lv_point_t point_lb;
|
||
|
lv_point_t ofs_rb;
|
||
|
lv_point_t ofs_rt;
|
||
|
lv_point_t ofs_lb;
|
||
|
lv_point_t ofs_lt;
|
||
|
ofs_rb.x = coords->x2 - radius - LV_ANTIALIAS;
|
||
|
ofs_rb.y = coords->y2 - radius - LV_ANTIALIAS;
|
||
|
|
||
|
ofs_rt.x = coords->x2 - radius - LV_ANTIALIAS;
|
||
|
ofs_rt.y = coords->y1 + radius + LV_ANTIALIAS;
|
||
|
|
||
|
ofs_lb.x = coords->x1 + radius + LV_ANTIALIAS;
|
||
|
ofs_lb.y = coords->y2 - radius - LV_ANTIALIAS;
|
||
|
|
||
|
ofs_lt.x = coords->x1 + radius + LV_ANTIALIAS;
|
||
|
ofs_lt.y = coords->y1 + radius + LV_ANTIALIAS;
|
||
|
bool line_ready;
|
||
|
for(line = 0; line <= radius + swidth; line++) { /*Check all rows and make the 1D blur to 2D*/
|
||
|
line_ready = false;
|
||
|
for(col = 0; col <= radius + swidth; col++) { /*Check all pixels in a 1D blur line (from the origo to last shadow pixel (radius + swidth))*/
|
||
|
|
||
|
/*Sum the opacities from the lines above and below this 'row'*/
|
||
|
int16_t line_rel;
|
||
|
uint32_t px_opa_sum = 0;
|
||
|
for(line_rel = -swidth; line_rel <= swidth; line_rel ++) {
|
||
|
/*Get the relative x position of the 'line_rel' to 'line'*/
|
||
|
int16_t col_rel;
|
||
|
if(line + line_rel < 0) { /*Below the radius, here is the blur of the edge */
|
||
|
col_rel = radius - curve_x[line] - col;
|
||
|
} else if(line + line_rel > radius) { /*Above the radius, here won't be more 1D blur*/
|
||
|
break;
|
||
|
} else { /*Blur from the curve*/
|
||
|
col_rel = curve_x[line + line_rel] - curve_x[line] - col;
|
||
|
}
|
||
|
|
||
|
/*Add the value of the 1D blur on 'col_rel' position*/
|
||
|
if(col_rel < -swidth) { /*Outside of the blurred area. */
|
||
|
if(line_rel == -swidth) line_ready = true; /*If no data even on the very first line then it wont't be anything else in this line*/
|
||
|
break; /*Break anyway because only smaller 'col_rel' values will come */
|
||
|
} else if(col_rel > swidth) px_opa_sum += line_1d_blur[0]; /*Inside the not blurred area*/
|
||
|
else px_opa_sum += line_1d_blur[swidth - col_rel]; /*On the 1D blur (+ swidth to align to the center)*/
|
||
|
}
|
||
|
|
||
|
line_2d_blur[col] = px_opa_sum >> SHADOW_OPA_EXTRA_PRECISION;
|
||
|
if(line_ready) {
|
||
|
col++; /*To make this line to the last one ( drawing will go to '< col')*/
|
||
|
break;
|
||
|
}
|
||
|
|
||
|
}
|
||
|
|
||
|
/*Flush the line*/
|
||
|
point_rt.x = curve_x[line] + ofs_rt.x + 1;
|
||
|
point_rt.y = ofs_rt.y - line;
|
||
|
|
||
|
point_rb.x = curve_x[line] + ofs_rb.x + 1;
|
||
|
point_rb.y = ofs_rb.y + line;
|
||
|
|
||
|
point_lt.x = ofs_lt.x - curve_x[line] - 1;
|
||
|
point_lt.y = ofs_lt.y - line;
|
||
|
|
||
|
point_lb.x = ofs_lb.x - curve_x[line] - 1;
|
||
|
point_lb.y = ofs_lb.y + line;
|
||
|
|
||
|
uint16_t d;
|
||
|
for(d = 1; d < col; d++) {
|
||
|
|
||
|
if(point_lt.x < ofs_lt.x && point_lt.y < ofs_lt.y) {
|
||
|
px_fp(point_lt.x, point_lt.y, mask, style->body.shadow.color, line_2d_blur[d]);
|
||
|
}
|
||
|
|
||
|
if(point_lb.x < ofs_lb.x && point_lb.y > ofs_lb.y) {
|
||
|
px_fp(point_lb.x, point_lb.y, mask, style->body.shadow.color, line_2d_blur[d]);
|
||
|
}
|
||
|
|
||
|
if(point_rt.x > ofs_rt.x && point_rt.y < ofs_rt.y) {
|
||
|
px_fp(point_rt.x, point_rt.y, mask, style->body.shadow.color, line_2d_blur[d]);
|
||
|
}
|
||
|
|
||
|
if(point_rb.x > ofs_rb.x && point_rb.y > ofs_rb.y) {
|
||
|
px_fp(point_rb.x, point_rb.y, mask, style->body.shadow.color, line_2d_blur[d]);
|
||
|
}
|
||
|
|
||
|
point_rb.x++;
|
||
|
point_lb.x--;
|
||
|
|
||
|
point_rt.x++;
|
||
|
point_lt.x--;
|
||
|
}
|
||
|
|
||
|
/* Put the first line to the edges too.
|
||
|
* It is not correct because blur should be done below the corner too
|
||
|
* but is is simple, fast and gives a good enough result*/
|
||
|
if(line == 0) lv_draw_shadow_full_straight(coords, mask, style, line_2d_blur);
|
||
|
}
|
||
|
}
|
||
|
|
||
|
|
||
|
static void lv_draw_shadow_bottom(const lv_area_t * coords, const lv_area_t * mask, const lv_style_t * style, lv_opa_t opa_scale)
|
||
|
{
|
||
|
lv_coord_t radius = style->body.radius;
|
||
|
lv_coord_t swidth = style->body.shadow.width;
|
||
|
lv_coord_t width = lv_area_get_width(coords);
|
||
|
lv_coord_t height = lv_area_get_height(coords);
|
||
|
|
||
|
radius = lv_draw_cont_radius_corr(radius, width, height);
|
||
|
radius += LV_ANTIALIAS * SHADOW_BOTTOM_AA_EXTRA_RADIUS;
|
||
|
swidth += LV_ANTIALIAS;
|
||
|
#if LV_COMPILER_VLA_SUPPORTED
|
||
|
lv_coord_t curve_x[radius + 1]; /*Stores the 'x' coordinates of a quarter circle.*/
|
||
|
#else
|
||
|
# if LV_HOR_RES > LV_VER_RES
|
||
|
lv_coord_t curve_x[LV_HOR_RES];
|
||
|
# else
|
||
|
lv_coord_t curve_x[LV_VER_RES];
|
||
|
# endif
|
||
|
#endif
|
||
|
lv_point_t circ;
|
||
|
lv_coord_t circ_tmp;
|
||
|
lv_circ_init(&circ, &circ_tmp, radius);
|
||
|
while(lv_circ_cont(&circ)) {
|
||
|
curve_x[LV_CIRC_OCT1_Y(circ)] = LV_CIRC_OCT1_X(circ);
|
||
|
curve_x[LV_CIRC_OCT2_Y(circ)] = LV_CIRC_OCT2_X(circ);
|
||
|
lv_circ_next(&circ, &circ_tmp);
|
||
|
}
|
||
|
|
||
|
int16_t col;
|
||
|
#if LV_COMPILER_VLA_SUPPORTED
|
||
|
lv_opa_t line_1d_blur[swidth];
|
||
|
#else
|
||
|
# if LV_HOR_RES > LV_VER_RES
|
||
|
lv_opa_t line_1d_blur[LV_HOR_RES];
|
||
|
# else
|
||
|
lv_opa_t line_1d_blur[LV_VER_RES];
|
||
|
# endif
|
||
|
#endif
|
||
|
|
||
|
lv_opa_t opa = opa_scale == LV_OPA_COVER ? style->body.opa : (uint16_t)((uint16_t) style->body.opa * opa_scale) >> 8;
|
||
|
for(col = 0; col < swidth; col++) {
|
||
|
line_1d_blur[col] = (uint32_t)((uint32_t)(swidth - col) * opa / 2) / (swidth);
|
||
|
}
|
||
|
|
||
|
lv_point_t point_l;
|
||
|
lv_point_t point_r;
|
||
|
lv_area_t area_mid;
|
||
|
lv_point_t ofs_l;
|
||
|
lv_point_t ofs_r;
|
||
|
|
||
|
ofs_l.x = coords->x1 + radius;
|
||
|
ofs_l.y = coords->y2 - radius + 1 - LV_ANTIALIAS;
|
||
|
|
||
|
ofs_r.x = coords->x2 - radius;
|
||
|
ofs_r.y = coords->y2 - radius + 1 - LV_ANTIALIAS;
|
||
|
|
||
|
for(col = 0; col <= radius; col++) {
|
||
|
point_l.x = ofs_l.x - col ;
|
||
|
point_l.y = ofs_l.y + curve_x[col];
|
||
|
|
||
|
point_r.x = ofs_r.x + col;
|
||
|
point_r.y = ofs_r.y + curve_x[col];
|
||
|
|
||
|
lv_opa_t px_opa;
|
||
|
int16_t diff = col == 0 ? 0 : curve_x[col - 1] - curve_x[col];
|
||
|
uint16_t d;
|
||
|
for(d = 0; d < swidth; d++) {
|
||
|
/*When stepping a pixel in y calculate the average with the pixel from the prev. column to make a blur */
|
||
|
if(diff == 0) {
|
||
|
px_opa = line_1d_blur[d];
|
||
|
} else {
|
||
|
px_opa = (uint16_t)((uint16_t)line_1d_blur[d] + line_1d_blur[d - diff]) >> 1;
|
||
|
}
|
||
|
px_fp(point_l.x, point_l.y, mask, style->body.shadow.color, px_opa);
|
||
|
point_l.y ++;
|
||
|
|
||
|
/*Don't overdraw the pixel on the middle*/
|
||
|
if(point_r.x > ofs_l.x) {
|
||
|
px_fp(point_r.x, point_r.y, mask, style->body.shadow.color, px_opa);
|
||
|
}
|
||
|
point_r.y ++;
|
||
|
}
|
||
|
|
||
|
}
|
||
|
|
||
|
area_mid.x1 = ofs_l.x + 1;
|
||
|
area_mid.y1 = ofs_l.y + radius;
|
||
|
area_mid.x2 = ofs_r.x - 1;
|
||
|
area_mid.y2 = area_mid.y1;
|
||
|
|
||
|
uint16_t d;
|
||
|
for(d = 0; d < swidth; d++) {
|
||
|
fill_fp(&area_mid, mask, style->body.shadow.color, line_1d_blur[d]);
|
||
|
area_mid.y1 ++;
|
||
|
area_mid.y2 ++;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
static void lv_draw_shadow_full_straight(const lv_area_t * coords, const lv_area_t * mask, const lv_style_t * style, const lv_opa_t * map)
|
||
|
{
|
||
|
lv_coord_t radius = style->body.radius;
|
||
|
lv_coord_t swidth = style->body.shadow.width;// + LV_ANTIALIAS;
|
||
|
lv_coord_t width = lv_area_get_width(coords);
|
||
|
lv_coord_t height = lv_area_get_height(coords);
|
||
|
|
||
|
radius = lv_draw_cont_radius_corr(radius, width, height);
|
||
|
radius += LV_ANTIALIAS;
|
||
|
|
||
|
lv_area_t right_area;
|
||
|
right_area.x1 = coords->x2 + 1 - LV_ANTIALIAS;
|
||
|
right_area.y1 = coords->y1 + radius + LV_ANTIALIAS;
|
||
|
right_area.x2 = right_area.x1;
|
||
|
right_area.y2 = coords->y2 - radius - LV_ANTIALIAS;
|
||
|
|
||
|
lv_area_t left_area;
|
||
|
left_area.x1 = coords->x1 - 1 + LV_ANTIALIAS;
|
||
|
left_area.y1 = coords->y1 + radius + LV_ANTIALIAS;
|
||
|
left_area.x2 = left_area.x1;
|
||
|
left_area.y2 = coords->y2 - radius - LV_ANTIALIAS;
|
||
|
|
||
|
lv_area_t top_area;
|
||
|
top_area.x1 = coords->x1 + radius + LV_ANTIALIAS;
|
||
|
top_area.y1 = coords->y1 - 1 + LV_ANTIALIAS;
|
||
|
top_area.x2 = coords->x2 - radius - LV_ANTIALIAS;
|
||
|
top_area.y2 = top_area.y1;
|
||
|
|
||
|
lv_area_t bottom_area;
|
||
|
bottom_area.x1 = coords->x1 + radius + LV_ANTIALIAS;
|
||
|
bottom_area.y1 = coords->y2 + 1 - LV_ANTIALIAS;
|
||
|
bottom_area.x2 = coords->x2 - radius - LV_ANTIALIAS;
|
||
|
bottom_area.y2 = bottom_area.y1;
|
||
|
|
||
|
lv_opa_t opa_act;
|
||
|
int16_t d;
|
||
|
for(d = 1 /*+ LV_ANTIALIAS*/; d <= swidth/* - LV_ANTIALIAS*/; d++) {
|
||
|
opa_act = map[d];
|
||
|
|
||
|
fill_fp(&right_area, mask, style->body.shadow.color, opa_act);
|
||
|
right_area.x1++;
|
||
|
right_area.x2++;
|
||
|
|
||
|
fill_fp(&left_area, mask, style->body.shadow.color, opa_act);
|
||
|
left_area.x1--;
|
||
|
left_area.x2--;
|
||
|
|
||
|
fill_fp(&top_area, mask, style->body.shadow.color, opa_act);
|
||
|
top_area.y1--;
|
||
|
top_area.y2--;
|
||
|
|
||
|
fill_fp(&bottom_area, mask, style->body.shadow.color, opa_act);
|
||
|
bottom_area.y1++;
|
||
|
bottom_area.y2++;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
#endif
|
||
|
|
||
|
|
||
|
static uint16_t lv_draw_cont_radius_corr(uint16_t r, lv_coord_t w, lv_coord_t h)
|
||
|
{
|
||
|
if(r >= (w >> 1)) {
|
||
|
r = (w >> 1);
|
||
|
if(r != 0) r--;
|
||
|
}
|
||
|
if(r >= (h >> 1)) {
|
||
|
r = (h >> 1);
|
||
|
if(r != 0) r--;
|
||
|
}
|
||
|
|
||
|
if(r > 0) r -= LV_ANTIALIAS;
|
||
|
|
||
|
return r;
|
||
|
}
|
||
|
|
||
|
#if LV_ANTIALIAS
|
||
|
|
||
|
/**
|
||
|
* Approximate the opacity for anti-aliasing.
|
||
|
* Used the first segment of a circle which is the longest and have the most non-linearity (cos)
|
||
|
* @param seg length of the line segment
|
||
|
* @param px_id index of pixel on the line segment
|
||
|
* @param line_opa opacity of the lien (it will be the max opacity)
|
||
|
* @return the desired opacity of the pixel
|
||
|
*/
|
||
|
static lv_opa_t antialias_get_opa_circ(lv_coord_t seg, lv_coord_t px_id, lv_opa_t opa)
|
||
|
{
|
||
|
static const lv_opa_t opa_map[8] = {250, 242, 221, 196, 163, 122, 74, 18};
|
||
|
|
||
|
if(seg == 0) return LV_OPA_TRANSP;
|
||
|
else if(seg == 1) return LV_OPA_80;
|
||
|
else {
|
||
|
|
||
|
uint8_t id = (uint32_t)((uint32_t)px_id * (sizeof(opa_map) - 1)) / (seg - 1);
|
||
|
return (uint32_t)((uint32_t) opa_map[id] * opa) >> 8;
|
||
|
|
||
|
}
|
||
|
|
||
|
}
|
||
|
|
||
|
#endif
|