零知开源分享-移植 LittleVGL.GUI库demo演示 -

/**
* Initialize your display here
*/
void tft_init(void)
{
lv_disp_drv_t disp_drv;
lv_disp_drv_init(&disp_drv);
disp_drv.disp_fill = tft_fill;
disp_drv.disp_map = tft_map;
disp_drv.disp_flush = tft_flush;
lv_disp_drv_register(&disp_drv);
}

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/**
* Flush a color buffer
* @param x1 left coordinate of the rectangle
* @param x2 right coordinate of the rectangle
* @param y1 top coordinate of the rectangle
* @param y2 bottom coordinate of the rectangle
* @param color_p pointer to an array of colors
*/
void tft_flush(int32_t x1, int32_t y1, int32_t x2, int32_t y2, const lv_color_t * color_p)
{
// LCD_Color_Fill(x1,y1,x2,y2,color_p);
u16 height,width;
u16 i,j;
width=x2-x1+1; //得到填充的宽度
height=y2-y1+1; //高度
for(i=0;i<height;i++)
{
LCD_SetCursor(x1,y1+i); //设置光标位置
LCD_WriteRAM_Prepare(); //开始写入GRAM
for(j=0;j<width;j++)
{
LCD_TYPE->LCD_RAM=color_p->full;//写入数据
color_p++;
}
}
lv_flush_ready();
}
/**
* Put a color map to a rectangular area
* @param x1 left coordinate of the rectangle
* @param x2 right coordinate of the rectangle
* @param y1 top coordinate of the rectangle
* @param y2 bottom coordinate of the rectangle
* @param color_p pointer to an array of colors
*/
void tft_map(int32_t x1, int32_t y1, int32_t x2, int32_t y2, const lv_color_t * color_p)
{
u16 height,width;
u16 i,j;
width=x2-x1+1; //得到填充的宽度
height=y2-y1+1; //高度
for(i=0;i<height;i++)
{
LCD_SetCursor(x1,y1+i); //设置光标位置
LCD_WriteRAM_Prepare(); //开始写入GRAM
for(j=0;j<width;j++)
{
LCD_TYPE->LCD_RAM=color_p->full;//写入数据
color_p++;
}
}
}
/**
* Fill a rectangular area with a color
* @param x1 left coordinate of the rectangle
* @param x2 right coordinate of the rectangle
* @param y1 top coordinate of the rectangle
* @param y2 bottom coordinate of the rectangle
* @param color fill color
*/
void tft_fill(int32_t x1, int32_t y1, int32_t x2, int32_t y2, lv_color_t color)
{
LCD_Fill(x1,y1,x2,y2,color.full);
}

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/**
* init touchpad here
*/
/*************************
* Input device interface
*************************/
void touchpad_init(void)
{
lv_indev_drv_t indev_drv; /*Descriptor of an input device driver*/
lv_indev_drv_init(&indev_drv); /*Basic initialization*/
indev_drv.type = LV_INDEV_TYPE_POINTER; /*The touchpad is pointer type device*/
indev_drv.read = ex_tp_read; /*Library ready your touchpad via this function*/
lv_indev_drv_register(&indev_drv); /*Finally register the driver*/
}

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/*
* touch read position
*/
bool ex_tp_read(lv_indev_data_t *data)
{
bool tp_is_pressed = ts.touched(); /*TODO read here the state of toush pad*/
int16_t last_x = 0;
int16_t last_y = 0;
if(tp_is_pressed) {
/*Touch pad is being pressed now*/
TS_Point p = ts.getPoint();
//convert to lcd position
last_y = 320-(p.x *320)/4095; /*TODO save the current X coordinate*/
last_x = 240-(p.y *240)/4095; /*TODO save the current Y coordinate*/
Serial.print("touched:");
Serial.print(last_x);Serial.print(",");Serial.println(last_y);
}
data->point.x = last_x;
data->point.y = last_y;
data->state = tp_is_pressed ? LV_INDEV_STATE_PR : LV_INDEV_STATE_REL;
return false; /*Return false because no moare to be read*/
}

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void timer_handler(stimer_t *timer)
{
lv_tick_inc(1);
}
void lvgl_timer_init()
{
static stimer_t m_timer;
m_timer.timer = TIM3;
TimerHandleInit(&m_timer, 10-1, 8400-1);//1ms timer
attachIntHandle(&m_timer, timer_handler);
}

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