#include "config.h"
#include "oledfont.h"  	 

u8 OLED_GRAM[144][8];

//反显函数
void OLED_ColorTurn(u8 i)
{
	if(i==0)
		{
			OLED_WR_Byte(0xA6,OLED_CMD);//正常显示
		}
	if(i==1)
		{
			OLED_WR_Byte(0xA7,OLED_CMD);//反色显示
		}
}

//屏幕旋转180度
void OLED_DisplayTurn(u8 i)
{
	if(i==0)
		{
			OLED_WR_Byte(0xC8,OLED_CMD);//正常显示
			OLED_WR_Byte(0xA1,OLED_CMD);
		}
	if(i==1)
		{
			OLED_WR_Byte(0xC0,OLED_CMD);//反转显示
			OLED_WR_Byte(0xA0,OLED_CMD);
		}
}

/****************************************************
函数名：OLED_SPI2_SendByte
功能  ：FM存储部分用到的SPI发送函数
参数  ：dt 要发送的数据
返回值：无
****************************************************/
u8 OLED_SPI2_SendByte(u8 dt)
{
    while(SPI_I2S_GetFlagStatus(SPI2, SPI_I2S_FLAG_TXE) == RESET);
    SPI_I2S_SendData(SPI2, dt);
    while(SPI_I2S_GetFlagStatus(SPI2, SPI_I2S_FLAG_RXNE) == RESET);
    return SPI_I2S_ReceiveData(SPI2);
}

void OLED_WR_Byte(u8 dat,u8 cmd)
{		  
	if(cmd)
	  OLED_DC_Set();
	else
	  OLED_DC_Clr();
	OLED_CS_Clr();
	OLED_SPI2_SendByte(dat);	
	OLED_CS_Set();
	OLED_DC_Set();   	  
}

//开启OLED显示 
void OLED_DisPlay_On(void)
{
	OLED_WR_Byte(0x8D,OLED_CMD);//电荷泵使能
	OLED_WR_Byte(0x14,OLED_CMD);//开启电荷泵
	OLED_WR_Byte(0xAF,OLED_CMD);//点亮屏幕
}

//关闭OLED显示 
void OLED_DisPlay_Off(void)
{
	OLED_WR_Byte(0x8D,OLED_CMD);//电荷泵使能
	OLED_WR_Byte(0x10,OLED_CMD);//关闭电荷泵
	OLED_WR_Byte(0xAE,OLED_CMD);//关闭屏幕
}

//更新显存到OLED	1.8ms
void OLED_Refresh(void)
{
	u8 i=0,n=0;
	OLED_WR_Byte(0xb0+i,OLED_CMD); //设置行起始地址
	OLED_WR_Byte(0x00,OLED_CMD);   //设置低列起始地址
	OLED_WR_Byte(0x10,OLED_CMD);   //设置高列起始地址
	for(i=0;i<8;i++)
	{ 
	  for(n=0;n<128;n++)
		 OLED_WR_Byte(OLED_GRAM[n][i],OLED_DATA);
  }
}
//清屏函数
void OLED_Clear(void)
{
	u8 i,n;
	for(i=0;i<8;i++)
	{
	   for(n=0;n<128;n++)
			{
			 OLED_GRAM[n][i]=0;//清除所有数据
			}
  }
	//OLED_Refresh();//更新显示
}

//画点 
//x:0~127
//y:0~63
//t:1 填充 0,清空	
void OLED_DrawPoint(u8 x,u8 y,u8 t)
{
	u8 i,m,n;
	i=y/8;
	m=y%8;
	n=1<<m;
	if(t){OLED_GRAM[x][i]|=n;}
	else
	{
		OLED_GRAM[x][i]=~OLED_GRAM[x][i];
		OLED_GRAM[x][i]|=n;
		OLED_GRAM[x][i]=~OLED_GRAM[x][i];
	}
}

//画线
//x1,y1:起点坐标
//x2,y2:结束坐标
void OLED_DrawLine(u8 x1,u8 y1,u8 x2,u8 y2,u8 mode)
{
	u16 t; 
	int xerr=0,yerr=0,delta_x,delta_y,distance;
	int incx,incy,uRow,uCol;
	delta_x=x2-x1; //计算坐标增量 
	delta_y=y2-y1;
	uRow=x1;//画线起点坐标
	uCol=y1;
	if(delta_x>0)incx=1; //设置单步方向 
	else if (delta_x==0)incx=0;//垂直线 
	else {incx=-1;delta_x=-delta_x;}
	if(delta_y>0)incy=1;
	else if (delta_y==0)incy=0;//水平线 
	else {incy=-1;delta_y=-delta_x;}
	if(delta_x>delta_y)distance=delta_x; //选取基本增量坐标轴 
	else distance=delta_y;
	for(t=0;t<distance+1;t++)
	{
		OLED_DrawPoint(uRow,uCol,mode);//画点
		xerr+=delta_x;
		yerr+=delta_y;
		if(xerr>distance)
		{
			xerr-=distance;
			uRow+=incx;
		}
		if(yerr>distance)
		{
			yerr-=distance;
			uCol+=incy;
		}
	}
}
//x,y:圆心坐标
//r:圆的半径
void OLED_DrawCircle(u8 x,u8 y,u8 r)
{
	int a, b,num;
    a = 0;
    b = r;
    while(2 * b * b >= r * r)      
    {
        OLED_DrawPoint(x + a, y - b,1);
        OLED_DrawPoint(x - a, y - b,1);
        OLED_DrawPoint(x - a, y + b,1);
        OLED_DrawPoint(x + a, y + b,1);
 
        OLED_DrawPoint(x + b, y + a,1);
        OLED_DrawPoint(x + b, y - a,1);
        OLED_DrawPoint(x - b, y - a,1);
        OLED_DrawPoint(x - b, y + a,1);
        
        a++;
        num = (a * a + b * b) - r*r;//计算画的点离圆心的距离
        if(num > 0)
        {
            b--;
            a--;
        }
    }
}
void OLED_DrawArc(int rx,int ry,int r, int j) 
	{  
    float x, y,i = 0;  
    float angleInRadians = j * (3.1415926 / 180.0); // 将角度转换为弧度  
    float startAngle = -angleInRadians / 2.0; // 计算起始角度（弧度）  
    float endAngle = angleInRadians / 2.0; // 计算结束角度（弧度）  
    float increment = (endAngle - startAngle) / 20.0;
    for (i = startAngle; i <= angleInRadians; i += increment) {  
        x = rx + (r * sin(i));  
        y = ry - (r * cos(i)); // 注意Y轴的方向可能需要根据你的显示设备调整  
  
   OLED_DrawPoint(x, y, 1); // 绘制点，假设WHITE是你要使用的颜色  
    }   
}  
//在指定位置显示一个字符,包括部分字符
//x:0~127
//y:0~63
//size1:选择字体 6x8/6x12/8x16/12x24
//mode:0,反色显示;1,正常显示
void OLED_ShowChar(u8 x,u8 y,u8 chr,u8 size1,u8 mode)
{
	u8 i,m,temp,size2,chr1;
	u8 x0=x,y0=y;
	if(size1==8)size2=6;
	else size2=(size1/8+((size1%8)?1:0))*(size1/2);  //得到字体一个字符对应点阵集所占的字节数
	chr1=chr-' ';  //计算偏移后的值
	for(i=0;i<size2;i++)
	{
		if(size1==8)
			  {temp=asc2_0806[chr1][i];} //调用0806字体
		else if(size1==12)
        {temp=asc2_1206[chr1][i];} //调用1206字体
		else if(size1==16)
        {temp=asc2_1608[chr1][i];} //调用1608字体
		else if(size1==24)
        {temp=asc2_2412[chr1][i];} //调用2412字体
		else return;
		for(m=0;m<8;m++)
		{
			if(temp&0x01)OLED_DrawPoint(x,y,mode);
			else OLED_DrawPoint(x,y,!mode);
			temp>>=1;
			y++;
		}
		x++;
		if((size1!=8)&&((x-x0)==size1/2))
		{x=x0;y0=y0+8;}
		y=y0;
  }
}


//显示字符串
//x,y:起点坐标  
//size1:字体大小 
//*chr:字符串起始地址 
//mode:0,反色显示;1,正常显示
void OLED_ShowString(u8 x,u8 y,u8 *chr,u8 Maxlen,u8 size1,u8 mode)
{
	while(Maxlen && (*chr>=' ') && (*chr<='~'))//判断是不是非法字符!
	{
		OLED_ShowChar(x,y,*chr,size1,mode);
		if(size1==8)x+=6;
		else x+=size1/2;
		chr++;
		Maxlen --;
  }
}
//显示进度条
//x,y:起点坐标  
//sizex:长 
//sizex:宽
//Num进度
//mode:0,反色显示;1,正常显示
void OLED_ProgressBar(u8 x,u8 y,u8 sizex,u8 sizey,u8 num,u8 mode)
{
	u8 Setp = sizex * num / 100;
	u8 i = 0;
  OLED_DrawLine(x,y,x+sizex,y,1);
	OLED_DrawLine(x,y+sizey,x+sizex,y+sizey,1);
	OLED_DrawLine(x,y,x,y+sizey,1);
	OLED_DrawLine(x+sizex,y,x+sizex,y+sizey,1);
	
	for(i = 0;i < sizey;i ++)
	{
	  OLED_DrawLine(x,y+i,x+Setp,y+i,1);
	  }
  }
//m^n
u32 OLED_Pow(u8 m,u8 n)
{
	u32 result=1;
	while(n--)
	{
	  result*=m;
	}
	return result;
}

//显示数字
//x,y :起点坐标
//num :要显示的数字
//len :数字的位数,0表示自适应
//size:字体大小
//mode:0,反色显示;1,正常显示
//u8 OLED_ShowNum(u8 x,u8 y,u32 num,u8 len,u8 size1,u8 mode)
//{
//	u8 t,temp,m=0;
//	if(len == 0)
//	  len = (int)(log10(num) + 1);
//	if(size1==8)m=2;
//	for(t=0;t<len;t++)
//	{
//		temp=(num/OLED_Pow(10,len-t-1))%10;
//			if(temp==0)
//			{
//				OLED_ShowChar(x+(size1/2+m)*t,y,'0',size1,mode);
//      }
//			else 
//			{
//			  OLED_ShowChar(x+(size1/2+m)*t,y,temp+'0',size1,mode);
//			}
//  }
//	return len;
//}
u8 OLED_ShowNum(u8 x, u8 y, u32 num, u8 len, u8 Dec, u8 size1, u8 mode) 
{
	u8 t, temp, m = 0,d = 0;
	if(len == 0)
		len = (int)(log10(num) + 1);
	//if(Dec)len++;
	if (size1 == 8)
		m = 2;
	if(len <= Dec && Dec > 0)
	{
	  OLED_ShowChar(x, y, '0', size1, mode);
		x += (size1 / 2 + m);
	  }
	for(t = 0; t < len+d; t++) 
	{
		if(t == len - Dec) 
		{ // 判断是否到了小数点位置
			OLED_ShowChar(x + (size1 / 2 + m) * t, y, '.', size1, mode); // 显示小数点
			d = 1;
			continue;
			}
//		if(t >= len - Dec)
//			d = 1;
//		else
//			d = 0;
		temp = (num / OLED_Pow(10, len+d - t - 1)) % 10;
		if(temp == 0) 
		{
			OLED_ShowChar(d + x + (size1 / 2 + m) * t, y, '0', size1, mode);
		 } 
		else 
		{
			OLED_ShowChar(d + x + (size1 / 2 + m) * t, y, temp + '0', size1, mode);
		 }
	 }
	return len;
}

//x,y：起点坐标
//sizex,sizey,图片长宽
//BMP[]：要写入的图片数组
//mode:0,反色显示;1,正常显示
void OLED_ShowPicture(u8 x,u8 y,u8 sizex,u8 sizey,u8 BMP[],u8 mode)
{
	u16 j=0;
	u8 i,n,temp,m;
	u8 x0=x,y0=y;
	sizey=sizey/8+((sizey%8)?1:0);
	for(n=0;n<sizey;n++)
	{
		 for(i=0;i<sizex;i++)
		 {
				temp=BMP[j];
				j++;
				for(m=0;m<8;m++)
				{
					if(temp&0x01)OLED_DrawPoint(x,y,mode);
					else OLED_DrawPoint(x,y,!mode);
					temp>>=1;
					y++;
				}
				x++;
				if((x-x0)==sizex)
				{
					x=x0;
					y0=y0+8;
				}
				y=y0;
     }
	 }
}
//OLED的初始化
void OLED_Init(void)
{
  GPIO_InitTypeDef  GPIO_InitStructure;
	
	RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOD|RCC_AHB1Periph_GPIOB,ENABLE);//使能PORTA~E,PORTG时钟


	//GPIO初始化设置
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_11|GPIO_Pin_12;
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_OUT;//普通输出模式
  GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;//推挽输出
  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_100MHz;//100MHz
  GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP;//上拉
  GPIO_Init(GPIOD, &GPIO_InitStructure);//初始化
	
	//GPIO初始化设置
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10;
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_OUT;//普通输出模式
  GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;//推挽输出
  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_100MHz;//100MHz
  GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP;//上拉
  GPIO_Init(GPIOB, &GPIO_InitStructure);//初始化
	delay_ms(200);
	OLED_RES_Clr();
	delay_ms(200);
	OLED_RES_Set();
	delay_ms(200);
	OLED_WR_Byte(0xFD,OLED_CMD);
	OLED_WR_Byte(0x12,OLED_CMD);
	OLED_WR_Byte(0xAE,OLED_CMD);//--turn off oled panel
	OLED_WR_Byte(0xd5,OLED_CMD);//--set display clock divide ratio/oscillator frequency
	OLED_WR_Byte(0xA0,OLED_CMD);
	OLED_WR_Byte(0xA8,OLED_CMD);//--set multiplex ratio(1 to 64)
	OLED_WR_Byte(0x3f,OLED_CMD);//--1/64 duty
	OLED_WR_Byte(0xD3,OLED_CMD);//-set display offset	Shift Mapping RAM Counter (0x00~0x3F)
	OLED_WR_Byte(0x00,OLED_CMD);//-not offset
	OLED_WR_Byte(0x40,OLED_CMD);//--set start line address  Set Mapping RAM Display Start Line (0x00~0x3F)
	if(TXHData.HardwareVersion > 31)//24-31是大板，32-38是小板
	{
	  OLED_WR_Byte(0xA1,OLED_CMD);//--Set SEG/Column Mapping     0xa0左右反置 0xa1正常
	  OLED_WR_Byte(0xC8,OLED_CMD);//Set COM/Row Scan Direction   0xc0上下反置 0xc8正常
	  }
	else
  {
	  OLED_WR_Byte(0xA0,OLED_CMD);//--Set SEG/Column Mapping     0xa0左右反置 0xa1正常
	  OLED_WR_Byte(0xC0,OLED_CMD);//Set COM/Row Scan Direction   0xc0上下反置 0xc8正常
	  }
	OLED_WR_Byte(0xDA,OLED_CMD);//--set com pins hardware configuration
	OLED_WR_Byte(0x12,OLED_CMD);
	OLED_WR_Byte(0x81,OLED_CMD);//--set contrast control register
	OLED_WR_Byte(0x7F,OLED_CMD);// Set SEG Output Current Brightness
	OLED_WR_Byte(0xD9,OLED_CMD);//--set pre-charge period
	OLED_WR_Byte(0x82,OLED_CMD);//Set Pre-Charge as 15 Clocks & Discharge as 1 Clock
	OLED_WR_Byte(0xDB,OLED_CMD);//--set vcomh
	OLED_WR_Byte(0x34,OLED_CMD);//Set VCOM Deselect Level
	OLED_WR_Byte(0xA4,OLED_CMD);// Disable Entire Display On (0xa4/0xa5)
	OLED_WR_Byte(0xA6,OLED_CMD);// Disable Inverse Display On (0xa6/a7)
	OLED_WR_Byte(0x20,OLED_CMD);
	OLED_WR_Byte(0x00,OLED_CMD);
	OLED_Clear();
	OLED_WR_Byte(0xAF,OLED_CMD);
	//OLED_ShowPicture(0,0,128,64,BMP1,1);
	OLED_Refresh();
}


