83 lines
2.0 KiB
C
83 lines
2.0 KiB
C
/**
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* @file lv_draw_triangle.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_triangle_private.h"
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#include "lv_draw_private.h"
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#include "../core/lv_obj.h"
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#include "../misc/lv_math.h"
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#include "../stdlib/lv_mem.h"
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#include "../stdlib/lv_string.h"
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/*********************
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* DEFINES
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*********************/
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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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/**********************
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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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void lv_draw_triangle_dsc_init(lv_draw_triangle_dsc_t * dsc)
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{
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LV_PROFILER_DRAW_BEGIN;
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lv_memzero(dsc, sizeof(lv_draw_triangle_dsc_t));
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dsc->color = lv_color_white();
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dsc->grad.stops[0].color = lv_color_white();
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dsc->grad.stops[1].color = lv_color_black();
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dsc->grad.stops[1].frac = 0xFF;
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dsc->grad.stops_count = 2;
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dsc->opa = LV_OPA_COVER;
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dsc->base.dsc_size = sizeof(lv_draw_triangle_dsc_t);
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LV_PROFILER_DRAW_END;
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}
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lv_draw_triangle_dsc_t * lv_draw_task_get_triangle_dsc(lv_draw_task_t * task)
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{
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return task->type == LV_DRAW_TASK_TYPE_TRIANGLE ? (lv_draw_triangle_dsc_t *)task->draw_dsc : NULL;
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}
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void lv_draw_triangle(lv_layer_t * layer, const lv_draw_triangle_dsc_t * dsc)
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{
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if(dsc->opa <= LV_OPA_MIN) return;
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LV_PROFILER_DRAW_BEGIN;
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lv_area_t a;
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a.x1 = (int32_t)LV_MIN3(dsc->p[0].x, dsc->p[1].x, dsc->p[2].x);
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a.y1 = (int32_t)LV_MIN3(dsc->p[0].y, dsc->p[1].y, dsc->p[2].y);
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a.x2 = (int32_t)LV_MAX3(dsc->p[0].x, dsc->p[1].x, dsc->p[2].x);
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a.y2 = (int32_t)LV_MAX3(dsc->p[0].y, dsc->p[1].y, dsc->p[2].y);
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lv_draw_task_t * t = lv_draw_add_task(layer, &a, LV_DRAW_TASK_TYPE_TRIANGLE);
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lv_memcpy(t->draw_dsc, dsc, sizeof(*dsc));
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lv_draw_finalize_task_creation(layer, t);
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LV_PROFILER_DRAW_END;
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}
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/**********************
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* STATIC FUNCTIONS
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**********************/
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