/** * @file lv_draw_vglite_border.c * */ /** * Copyright 2022-2024 NXP * * SPDX-License-Identifier: MIT */ /********************* * INCLUDES *********************/ #include "lv_draw_vglite.h" #if LV_USE_DRAW_VGLITE #include "lv_vglite_buf.h" #include "lv_vglite_path.h" #include "lv_vglite_utils.h" #include /********************* * DEFINES *********************/ /********************* * DEFINES *********************/ /*** Define maximum numbers of rectangles needed to clip partial borders ***/ #define MAX_NUM_RECTANGLES 4 /********************** * TYPEDEFS **********************/ /********************** * STATIC PROTOTYPES **********************/ /** * Draw rectangle border/outline shape with effects (rounded corners, opacity) * * @param[in] coords Coordinates of the rectangle border/outline (relative to dest buff) * @param[in] clip_area Clip area with relative coordinates to dest buff * @param[in] dsc Description of the rectangle border/outline * */ static void _vglite_draw_border(const lv_area_t * coords, const lv_area_t * clip_area, const lv_draw_border_dsc_t * dsc); /********************** * STATIC VARIABLES **********************/ /********************** * MACROS **********************/ /********************** * GLOBAL FUNCTIONS **********************/ void lv_draw_vglite_border(lv_draw_unit_t * draw_unit, const lv_draw_border_dsc_t * dsc, const lv_area_t * coords) { if(dsc->opa <= (lv_opa_t)LV_OPA_MIN) return; if(dsc->width == 0) return; if(dsc->side == (lv_border_side_t)LV_BORDER_SIDE_NONE) return; lv_layer_t * layer = draw_unit->target_layer; lv_area_t inward_coords; int32_t width = dsc->width; /* Move border inwards to align with software rendered border */ inward_coords.x1 = coords->x1 + ceil(width / 2.0f); inward_coords.x2 = coords->x2 - floor(width / 2.0f); inward_coords.y1 = coords->y1 + ceil(width / 2.0f); inward_coords.y2 = coords->y2 - floor(width / 2.0f); lv_area_move(&inward_coords, -layer->buf_area.x1, -layer->buf_area.y1); lv_area_t clip_area; lv_area_copy(&clip_area, draw_unit->clip_area); lv_area_move(&clip_area, -layer->buf_area.x1, -layer->buf_area.y1); lv_area_t clipped_coords; if(!lv_area_intersect(&clipped_coords, &inward_coords, &clip_area)) return; /*Fully clipped, nothing to do*/ _vglite_draw_border(&inward_coords, &clip_area, dsc); } /********************** * STATIC FUNCTIONS **********************/ static void _vglite_draw_border(const lv_area_t * coords, const lv_area_t * clip_area, const lv_draw_border_dsc_t * dsc) { int32_t radius = dsc->radius; vg_lite_buffer_t * vgbuf = vglite_get_dest_buf(); if(radius < 0) return; int32_t border_half = (int32_t)floor(dsc->width / 2.0f); if(radius > border_half) radius = radius - border_half; vg_lite_cap_style_t cap_style = (radius) ? VG_LITE_CAP_ROUND : VG_LITE_CAP_BUTT; vg_lite_join_style_t join_style = (radius) ? VG_LITE_JOIN_ROUND : VG_LITE_JOIN_MITER; /*** Init path ***/ int32_t path_data[RECT_PATH_DATA_MAX_SIZE]; uint32_t path_data_size; vglite_create_rect_path_data(path_data, &path_data_size, radius, coords); vg_lite_quality_t path_quality = radius > 0 ? VG_LITE_HIGH : VG_LITE_MEDIUM; vg_lite_path_t path; VGLITE_CHECK_ERROR(vg_lite_init_path(&path, VG_LITE_S32, path_quality, path_data_size, path_data, (vg_lite_float_t)clip_area->x1, (vg_lite_float_t)clip_area->y1, ((vg_lite_float_t)clip_area->x2) + 1.0f, ((vg_lite_float_t)clip_area->y2) + 1.0f)); lv_color32_t col32 = lv_color_to_32(dsc->color, dsc->opa); vg_lite_color_t vgcol = vglite_get_color(col32, false); int32_t line_width = dsc->width; lv_border_side_t border_side = dsc->side; if(border_side == LV_BORDER_SIDE_FULL) border_side = LV_BORDER_SIDE_TOP | LV_BORDER_SIDE_BOTTOM | LV_BORDER_SIDE_LEFT | LV_BORDER_SIDE_RIGHT; uint32_t num_rect = 0; vg_lite_rectangle_t rect[MAX_NUM_RECTANGLES]; int32_t rect_width = coords->x2 - coords->x1; int32_t rect_height = coords->y2 - coords->y1; int32_t shortest_side = LV_MIN(rect_width, rect_height); int32_t final_radius = LV_MIN(radius, shortest_side / 2); if(border_side & LV_BORDER_SIDE_TOP) { rect[num_rect].x = coords->x1 - ceil(line_width / 2.0f); rect[num_rect].y = coords->y1 - ceil(line_width / 2.0f); rect[num_rect].width = coords->x2 - coords->x1 + line_width; rect[num_rect].height = final_radius + ceil(line_width / 2.0f); num_rect++; } if(border_side & LV_BORDER_SIDE_LEFT) { rect[num_rect].x = coords->x1 - ceil(line_width / 2.0f); rect[num_rect].y = coords->y1 - ceil(line_width / 2.0f); rect[num_rect].width = final_radius + ceil(line_width / 2.0f); rect[num_rect].height = coords->y2 - coords->y1 + line_width + 1; num_rect++; } if(border_side & LV_BORDER_SIDE_RIGHT) { rect[num_rect].x = coords->x2 - final_radius + 1; rect[num_rect].y = coords->y1 - ceil(line_width / 2.0f); rect[num_rect].width = final_radius + ceil(line_width / 2.0f); rect[num_rect].height = coords->y2 - coords->y1 + line_width + 1; num_rect++; } if(border_side & LV_BORDER_SIDE_BOTTOM) { rect[num_rect].x = coords->x1 - ceil(line_width / 2.0f); rect[num_rect].y = coords->y2 - final_radius + 1; rect[num_rect].width = coords->x2 - coords->x1 + line_width; rect[num_rect].height = final_radius + ceil(line_width / 2.0f); num_rect++; } /*** Enable scissor and apply scissor rects ***/ VGLITE_CHECK_ERROR(vg_lite_enable_scissor()); VGLITE_CHECK_ERROR(vg_lite_scissor_rects(vgbuf, num_rect, rect)); /*** Draw border ***/ VGLITE_CHECK_ERROR(vg_lite_set_draw_path_type(&path, VG_LITE_DRAW_STROKE_PATH)); VGLITE_CHECK_ERROR(vg_lite_set_stroke(&path, cap_style, join_style, line_width, 8, NULL, 0, 0, vgcol)); VGLITE_CHECK_ERROR(vg_lite_update_stroke(&path)); VGLITE_CHECK_ERROR(vg_lite_draw(vgbuf, &path, VG_LITE_FILL_NON_ZERO, NULL, VG_LITE_BLEND_SRC_OVER, vgcol)); vglite_run(); VGLITE_CHECK_ERROR(vg_lite_clear_path(&path)); /*** Disable scissor ***/ VGLITE_CHECK_ERROR(vg_lite_disable_scissor()); } #endif /*LV_USE_DRAW_VGLITE*/