rt-thread/examples/gui/demo_view_benchmark.c

#include <stdlib.h>
#include <rtgui/dc.h>
#include <rtgui/dc_hw.h>
#include <rtgui/rtgui_system.h>
#include <rtgui/widgets/container.h>
#include "demo_view.h"

#define RAND(x1, x2) ((rand() % (x2 - x1)) + x1)
#define _int_swap(x, y)		do {x ^= y; y ^= x; x ^= y; } while(0)

static struct rtgui_container *container = RT_NULL;
static int running = 0;
static rt_tick_t ticks;
static long long area;

static rt_bool_t _benchmark_onshow(struct rtgui_object *obj, struct rtgui_event *ev)
{
    rtgui_widget_focus(RTGUI_WIDGET(obj));

    return RT_TRUE;
}

void _onidle(struct rtgui_object *object, rtgui_event_t *event)
{
    rtgui_color_t color;
    rtgui_rect_t rect, draw_rect;
    struct rtgui_dc *dc;

    /* <20><><EFBFBD>ÿؼ<C3BF><D8BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>DC */
    // dc = rtgui_dc_hw_create(RTGUI_WIDGET(container));
    dc = rtgui_dc_begin_drawing(RTGUI_WIDGET(container));
    if (dc == RT_NULL)
        return;

    demo_view_get_logic_rect(RTGUI_CONTAINER(container), &rect);
    draw_rect.x1 = RAND(rect.x1, rect.x2);
    draw_rect.y1 = RAND(rect.y1, rect.y2);
    draw_rect.x2 = RAND(rect.x1, rect.x2);
    draw_rect.y2 = RAND(rect.y1, rect.y2);
	
	if(draw_rect.x1 > draw_rect.x2) _int_swap(draw_rect.x1, draw_rect.x2);
	if(draw_rect.y1 > draw_rect.y2) _int_swap(draw_rect.y1, draw_rect.y2);

    area += rtgui_rect_width(draw_rect) * rtgui_rect_height(draw_rect);
    color = RTGUI_RGB(rand() % 255, rand() % 255, rand() % 255);
    RTGUI_WIDGET_BACKGROUND(container) = color;

    rtgui_dc_fill_rect(dc, &draw_rect);

    /* <20><>ͼ<EFBFBD><CDBC><EFBFBD><EFBFBD> */
    rtgui_dc_end_drawing(dc);
    if(rt_tick_get()-ticks >= RT_TICK_PER_SECOND)
    {
        char buf[16];
        sprintf(buf, "%.2f", (double)area/(800*480));
        rt_kprintf("frames per second: %s fps\n", buf);
        area = 0;
        ticks = rt_tick_get();
    }
}

void _draw_default(struct rtgui_object *object, rtgui_event_t *event)
{
    struct rtgui_widget *widget = RTGUI_WIDGET(object);
    struct rtgui_dc *dc;
    rtgui_rect_t rect;

    /* <20><>Ϊ<EFBFBD>õ<EFBFBD><C3B5><EFBFBD>demo container<65><72><EFBFBD><EFBFBD><EFBFBD>汾<EFBFBD><E6B1BE><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD>ֿؼ<D6BF><D8BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڻ<EFBFBD>ͼʱ<CDBC><CAB1>Ҫ<EFBFBD><D2AA>demo container<65>Ȼ<EFBFBD>ͼ */
    rtgui_container_event_handler(object, event);

    /* <20><><EFBFBD>ÿؼ<C3BF><D8BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>DC */
    dc = rtgui_dc_begin_drawing(widget);
    if (dc == RT_NULL) /* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>DC<44><43><EFBFBD><EFBFBD><EFBFBD>أ<EFBFBD><D8A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ؼ<EFBFBD><D8BC>򸸿ؼ<F2B8B8BF><D8BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>״̬<D7B4><CCAC>DC<44>ǻ<EFBFBD>ȡ<EFBFBD><C8A1><EFBFBD>ɹ<EFBFBD><C9B9>ģ<EFBFBD> */
        return;

    /* <20><><EFBFBD><EFBFBD>demo container<65><72><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͼ<EFBFBD><CDBC><EFBFBD><EFBFBD><EFBFBD><EFBFBD> */
    demo_view_get_logic_rect(RTGUI_CONTAINER(widget), &rect);

    /* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> */
    RTGUI_WIDGET_BACKGROUND(widget) = default_background;
    rtgui_dc_fill_rect(dc, &rect);

    /* <20><>ʾ<EFBFBD><CABE>ʾ */
    rtgui_dc_draw_text(dc, "<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʼ/ֹͣ<CDA3><D6B9><EFBFBD><EFBFBD>...", &rect);

    /* <20><>ͼ<EFBFBD><CDBC><EFBFBD><EFBFBD> */
    rtgui_dc_end_drawing(dc);
}

rt_bool_t benchmark_event_handler(struct rtgui_object *object, rtgui_event_t *event)
{
    if (event->type == RTGUI_EVENT_PAINT)
    {
        _draw_default(object, event);
    }
    else if (event->type == RTGUI_EVENT_SHOW)
    {
        rtgui_container_event_handler(object, event);
        _benchmark_onshow(object, event);
    }
    else if (event->type == RTGUI_EVENT_KBD)
    {
        struct rtgui_event_kbd *kbd = (struct rtgui_event_kbd *)event;

        if (kbd->key == RTGUIK_LEFT || kbd->key == RTGUIK_RIGHT)
            return RT_FALSE;

        if (RTGUI_KBD_IS_UP(kbd))
        {
            if (running)
            {
                /* stop */
                rtgui_app_set_onidle(rtgui_app_self(), RT_NULL);
                _draw_default(object, event);
            }
            else
            {
                /* run */
                ticks = rt_tick_get();
                area = 0;
                rtgui_app_set_onidle(rtgui_app_self(), _onidle);
            }

            running = !running;
        }

        return RT_TRUE;
    }
    else
    {
        /* <20><><EFBFBD><EFBFBD>Ĭ<EFBFBD>ϵ<EFBFBD><CFB5>¼<EFBFBD><C2BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> */
        return rtgui_container_event_handler(object, event);
    }

    return RT_FALSE;
}

rtgui_container_t *demo_view_benchmark(void)
{
    srand(100);
    container = demo_view("<EFBFBD><EFBFBD>ͼ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>");
    RTGUI_WIDGET(container)->flag |= RTGUI_WIDGET_FLAG_FOCUSABLE;
    rtgui_object_set_event_handler(RTGUI_OBJECT(container), benchmark_event_handler);

    return container;
}