lv_draw_triangle.h

Functions

void lv_draw_triangle_dsc_init(lv_draw_triangle_dsc_t *draw_dsc)

Initialize a triangle draw descriptor

参数:

dsc -- pointer to a draw descriptor

lv_draw_triangle_dsc_t *lv_draw_task_get_triangle_dsc(lv_draw_task_t *task)

Try to get a triangle draw descriptor from a draw task.

参数:

task -- draw task

返回:

the task's draw descriptor or NULL if the task is not of type LV_DRAW_TASK_TYPE_TRIANGLE

void lv_draw_triangle(lv_layer_t *layer, const lv_draw_triangle_dsc_t *draw_dsc)

Create a triangle draw task

参数:

• layer -- pointer to a layer

• dsc -- pointer to an initialized lv_draw_triangle_dsc_t variable

struct lv_draw_triangle_dsc_t

Public Members

lv_draw_dsc_base_t base

lv_opa_t bg_opa

lv_color_t bg_color

lv_grad_dsc_t bg_grad

lv_point_precise_t p[3]