/****************************************************************************************************
//=========================================电源接线================================================//
// LCD模块 STM32单片机
// VCC 接 DC5V/3.3V //电源
// GND 接 GND //电源地
//=======================================液晶屏数据线接线==========================================//
//本模块默认数据总线类型为SPI总线
// LCD模块 STM32单片机
// SDA 接 PB15 //液晶屏SPI总线数据写信号
//=======================================液晶屏控制线接线==========================================//
// LCD模块 STM32单片机
// LED 接 PB9 //液晶屏背光控制信号，如果不需要控制，接5V或3.3V
// SCK 接 PB13 //液晶屏SPI总线时钟信号
// A0 接 PB10 //液晶屏数据/命令控制信号
// RESET 接 PB12 //液晶屏复位控制信号
// CS 接 PB11 //液晶屏片选控制信号
//=========================================触摸屏触接线=========================================//
//如果模块不带触摸功能或者带有触摸功能，但是不需要触摸功能，则不需要进行触摸屏接线
// LCD模块 STM32单片机
// T_IRQ 接 PC10 //触摸屏触摸中断信号
// T_DO 接 PC2 //触摸屏SPI总线读信号
// T_DIN 接 PC3 //触摸屏SPI总线写信号
// T_CS 接 PC13 //触摸屏片选控制信号
// T_CLK 接 PC0 //触摸屏SPI总线时钟信号
**************************************************************************************************/
/* @attention
*
* THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
* WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE
* TIME. AS A RESULT, QD electronic SHALL NOT BE HELD LIABLE FOR ANY
* DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING
* FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE
* CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
**************************************************************************************************/
#include "lcd.h"
#include "string.h"
#include "font.h"
#include "gui.h"
/*******************************************************************
* @name :void GUI_DrawPoint(uint16_t x,uint16_t y,uint16_t color)
* @date :2018-08-09
* @function :draw a point in LCD screen
* @parameters :x:the x coordinate of the point
y:the y coordinate of the point
color:the color value of the point
* @retvalue :None
********************************************************************/
void GUI_DrawPoint(uint16_t x,uint16_t y,uint16_t color)
{
LCD_SetCursor(x,y);//设置光标位置
Lcd_WriteData_16Bit(color);
}
/*******************************************************************
* @name :void LCD_Fill(uint16_t sx,uint16_t sy,uint16_t ex,uint16_t ey,uint16_t color)
* @date :2018-08-09
* @function :fill the specified area
* @parameters :sx:the bebinning x coordinate of the specified area
sy:the bebinning y coordinate of the specified area
ex:the ending x coordinate of the specified area
ey:the ending y coordinate of the specified area
color:the filled color value
* @retvalue :None
********************************************************************/
void LCD_Fill(uint16_t sx,uint16_t sy,uint16_t ex,uint16_t ey,uint16_t color)
{
uint16_t i,j;
uint16_t width=ex-sx+1; //得到填充的宽度
uint16_t height=ey-sy+1; //高度
LCD_SetWindows(sx,sy,ex,ey); //设置显示窗口
for(i=0;i<height;i++)
{
for(j=0;j<width;j++)
Lcd_WriteData_16Bit(color); //写入数据
}
LCD_SetWindows(0,0,lcddev.width-1,lcddev.height-1);//恢复窗口设置为全屏
}
/*******************************************************************
* @name :void LCD_DrawLine(uint16_t x1, uint16_t y1, uint16_t x2, uint16_t y2)
* @date :2018-08-09
* @function :Draw a line between two points
* @parameters :x1:the bebinning x coordinate of the line
y1:the bebinning y coordinate of the line
x2:the ending x coordinate of the line
y2:the ending y coordinate of the line
* @retvalue :None
********************************************************************/
void LCD_DrawLine(uint16_t x1, uint16_t y1, uint16_t x2, uint16_t y2)
{
uint16_t 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;
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_y;}
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++ )//画线输出
{
LCD_DrawPoint(uRow,uCol);//画点
xerr+=delta_x ;
yerr+=delta_y ;
if(xerr>distance)
{
xerr-=distance;
uRow+=incx;
}
if(yerr>distance)
{
yerr-=distance;
uCol+=incy;
}
}
}
/*****************************************************************************
* @name :void LCD_DrawRectangle(uint16_t x1, uint16_t y1, uint16_t x2, uint16_t y2)
* @date :2018-08-09
* @function :Draw a rectangle
* @parameters :x1:the bebinning x coordinate of the rectangle
y1:the bebinning y coordinate of the rectangle
x2:the ending x coordinate of the rectangle
y2:the ending y coordinate of the rectangle
* @retvalue :None
******************************************************************************/
void LCD_DrawRectangle(uint16_t x1, uint16_t y1, uint16_t x2, uint16_t y2)
{
LCD_DrawLine(x1,y1,x2,y1);
LCD_DrawLine(x1,y1,x1,y2);
LCD_DrawLine(x1,y2,x2,y2);
LCD_DrawLine(x2,y1,x2,y2);
}
/*****************************************************************************
* @name :void LCD_DrawFillRectangle(uint16_t x1, uint16_t y1, uint16_t x2, uint16_t y2)
* @date :2018-08-09
* @function :Filled a rectangle
* @parameters :x1:the bebinning x coordinate of the filled rectangle
y1:the bebinning y coordinate of the filled rectangle
x2:the ending x coordinate of the filled rectangle
y2:the ending y coordinate of the filled rectangle
* @retvalue :None
******************************************************************************/
void LCD_DrawFillRectangle(uint16_t x1, uint16_t y1, uint16_t x2, uint16_t y2)
{
LCD_Fill(x1,y1,x2,y2,POINT_COLOR);
}
/*****************************************************************************
* @name :void _draw_circle_8(int xc, int yc, int x, int y, uint16_t c)
* @date :2018-08-09
* @function :8 symmetry circle drawing algorithm (internal call)
* @parameters :xc:the x coordinate of the Circular center
yc:the y coordinate of the Circular center
x:the x coordinate relative to the Circular center
y:the y coordinate relative to the Circular center
c:the color value of the circle
* @retvalue :None
******************************************************************************/
void _draw_circle_8(int xc, int yc, int x, int y, uint16_t c)
{
GUI_DrawPoint(xc + x, yc + y, c);
GUI_DrawPoint(xc - x, yc + y, c);
GUI_DrawPoint(xc + x, yc - y, c);
GUI_DrawPoint(xc - x, yc - y, c);
GUI_DrawPoint(xc + y, yc + x, c);
GUI_DrawPoint(xc - y, yc + x, c);
GUI_DrawPoint(xc + y, yc - x, c);
GUI_DrawPoint(xc - y, yc - x, c);
}
/*****************************************************************************
* @name :void gui_circle(int xc, int yc,uint16_t c,int r, int fill)
* @date :2018-08-09
* @function :Draw a circle of specified size at a specified location
* @parameters :xc:the x coordinate of the Circular center
yc:the y coordinate of the Circular center
r:Circular radius
fill:1-filling,0-no filling
* @retvalue :None
******************************************************************************/
void gui_circle(int xc, int yc,uint16_t c,int r, int fill)
{
int x = 0, y = r, yi, d;
d = 3 - 2 * r;
if (fill)
{
// 如果填充（画实心圆）
while (x <= y) {
for (yi = x; yi <= y; yi++)
_draw_circle_8(xc, yc, x, yi, c);
if (d < 0) {
d = d + 4 * x + 6;
} else {
d = d + 4 * (x - y) + 10;
y--;
}
x++;
}
} else
{
// 如果不填充（画空心圆）
while (x <= y) {
_draw_circle_8(xc, yc, x, y, c);
if (d < 0) {
d = d + 4 * x + 6;
} else {
d = d + 4 * (x - y) + 10;
y--;
}
x++;
}
}
}
/*****************************************************************************
* @name :void Draw_Triangel(uint16_t x0,uint16_t y0,uint16_t x1,uint16_t y1,uint16_t x2,uint16_t y2)
* @date :2018-08-09
* @function :Draw a triangle at a specified position
* @parameters :x0:the bebinning x coordinate of the triangular edge
y0:the bebinning y coordinate of the triangular edge
x1:the vertex x coordinate of the triangular
y1:the vertex y coordinate of the triangular
x2:the ending x coordinate of the triangular edge
y2:the ending y coordinate of the triangular edge
* @retvalue :None
******************************************************************************/
void Draw_Triangel(uint16_t x0,uint16_t y0,uint16_t x1,uint16_t y1,uint16_t x2,uint16_t y2)
{
LCD_DrawLine(x0,y0,x1,y1);
LCD_DrawLine(x1,y1,x2,y2);
LCD_DrawLine(x2,y2,x0,y0);
}
static void _swap(uint16_t *a, uint16_t *b)
{
uint16_t tmp;
tmp = *a;
*a = *b;
*b = tmp;
}
/*****************************************************************************
* @name :void Fill_Triangel(uint16_t x0,uint16_t y0,uint16_t x1,uint16_t y1,uint16_t x2,uint16_t y2)
* @date :2018-08-09
* @function :filling a triangle at a specified position
* @parameters :x0:the bebinning x coordinate of the triangular edge
y0:the bebinning y coordinate of the triangular edge
x1:the vertex x coordinate of the triangular
y1:the vertex y coordinate of the triangular
x2:the ending x coordinate of the triangular edge
y2:the ending y coordinate of the triangular edge
* @retvalue :None
******************************************************************************/
void Fill_Triangel(uint16_t x0,uint16_t y0,uint16_t x1,uint16_t y1,uint16_t x2,uint16_t y2)
{
uint16_t a, b, y, last;
int dx01, dy01, dx02, dy02, dx12, dy12;
long sa = 0;
long sb = 0;
if (y0 > y1)
{
_swap(&y0,&y1);
_swap(&x0,&x1);
}
if (y1 > y2)
{
_swap(&y2,&y1);
_swap(&x2,&x1);
}
if (y0 > y1)
{
_swap(&y0,&y1);
_swap(&x0,&x1);
}
if(y0 == y2)
{
a = b = x0;
if(x1 < a)
{
a = x1;
}
else if(x1 > b)
{
b = x1;
}
if(x2 < a)
{
a = x2;
}
else if(x2 > b)
{
b = x2;
}
LCD_Fill(a,y0,b,y0,POINT_COLOR);
return;
}
dx01 = x1 - x0;
dy01 = y1 - y0;
dx02 = x2 - x0;
dy02 = y2 - y0;
dx12 = x2 - x1;
dy12 = y2 - y1;
if(y1 == y2)
{
last = y1;
}
else
{
last = y1-1;
}
for(y=y0; y<=last; y++)
{
a = x0 + sa / dy01;
b = x0 + sb / dy02;
sa += dx01;
sb += dx02;
if(a > b)
{
_swap(&a,&b);
}
LCD_Fill(a,y,b,y,POINT_COLOR);
}
sa = dx12 * (y - y1);
sb = dx02 * (y - y0);
for(; y<=y2; y++)
{
a = x1 + sa / dy12;
b = x0 + sb / dy02;
sa += dx12;
sb += dx02;
if(a > b)
{
_swap(&a,&b);
}
LCD_Fill(a,y,b,y,POINT_COLOR);
}
}
/*****************************************************************************
* @name :void LCD_ShowChar(uint16_t x,uint16_t y,uint16_t fc, uint16_t bc, uint8_t num,uint8_t size,uint8_t mode)
* @date :2018-08-09
* @function :Display a single English character
* @parameters :x:the bebinning x coordinate of the Character display position
y:the bebinning y coordinate of the Character display position
fc:the color value of display character
bc:the background color of display character
num:the ascii code of display character(0~94)
size:the size of display character
mode:0-no overlying,1-overlying
* @retvalue :None
******************************************************************************/
void LCD_ShowChar(uint16_t x,uint16_t y,uint16_t fc, uint16_t bc, uint8_t num,uint8_t size,uint8_t mode)
{
uint8_t temp;
uint8_t pos,t;
uint16_t colortemp=POINT_COLOR;
num=num-' ';//得到偏移后的值
LCD_SetWindows(x,y,x+size/2-1,y+size-1);//设置单个文字显示窗口
if(!mode) //非叠加方式
{
for(pos=0;pos<size;pos++)
{
if(size==12)temp=asc2_1206[num][pos];//调用1206字体
else temp=asc2_1608[num][pos]; //调用1608字体
for(t=0;t<size/2;t++)
{
if(temp&0x01)Lcd_WriteData_16Bit(fc);
else Lcd_WriteData_16Bit(bc);
temp>>=1;
}
}
}else//叠加方式
{
for(pos=0;pos<size;pos++)
{
if(size==12)temp=asc2_1206[num][pos];//调用1206字体
else temp=asc2_1608[num][pos]; //调用1608字体
for(t=0;t<size/2;t++)
{
POINT_COLOR=fc;
if(temp&0x01)LCD_DrawPoint(x+t,y+pos);//画一个点
temp>>=1;
}
}
}
POINT_COLOR=colortemp;
LCD_SetWindows(0,0,lcddev.width-1,lcddev.height-1);//恢复窗口为全屏
}
/*****************************************************************************
* @name :void LCD_ShowString(uint16_t x,uint16_t y,uint8_t size,uint8_t *p,uint8_t mode)
* @date :2018-08-09
* @function :Display English string
* @parameters :x:the bebinning x coordinate of the English string
y:the bebinning y coordinate of the English string
p:the start address of the English string
size:the size of display character
mode:0-no overlying,1-overlying
* @retvalue :None
******************************************************************************/
void LCD_ShowString(uint16_t x,uint16_t y,uint8_t size,uint8_t *p,uint8_t mode)
{
while((*p<='~')&&(*p>=' '))//判断是不是非法字符!
{
if(x>(lcddev.width-1)||y>(lcddev.height-1))
return;
LCD_ShowChar(x,y,POINT_COLOR,BACK_COLOR,*p,size,mode);
x+=size/2;
p++;
}
}
/*****************************************************************************
* @name :uint32_t mypow(uint8_t m,uint8_t n)
* @date :2018-08-09
* @function :get the nth power of m (internal call)
* @parameters :m:the multiplier
n:the power
* @retvalue :the nth power of m
******************************************************************************/
uint32_t mypow(uint8_t m,uint8_t n)
{
uint32_t result=1;
while(n--)result*=m;
return result;
}
/*****************************************************************************
* @name :void LCD_ShowNum(uint16_t x,uint16_t y,uint32_t num,uint8_t len,uint8_t size)
* @date :2018-08-09
* @function :Display number
* @parameters :x:the bebinning x coordinate of the number
y:the bebinning y coordinate of the number
num:the number(0~4294967295)
len:the length of the display number
size:the size of display number
* @retvalue :None
******************************************************************************/
void LCD_ShowNum(uint16_t x,uint16_t y,uint32_t num,uint8_t len,uint8_t size)
{
uint8_t t,temp;
uint8_t enshow=0;
for(t=0;t<len;t++)
{
temp=(num/mypow(10,len-t-1))%10;
if(enshow==0&&t<(len-1))
{
if(temp==0)
{
LCD_ShowChar(x+(size/2)*t,y,POINT_COLOR,BACK_COLOR,' ',size,0);
continue;
}else enshow=1;
}
LCD_ShowChar(x+(size/2)*t,y,POINT_COLOR,BACK_COLOR,temp+'0',size,0);
}
}
/*****************************************************************************
* @name :void GUI_DrawFont16(uint16_t x, uint16_t y, uint16_t fc, uint16_t bc, uint8_t *s,uint8_t mode)
* @date :2018-08-09
* @function :Display a single 16x16 Chinese character
* @parameters :x:the bebinning x coordinate of the Chinese character
y:the bebinning y coordinate of the Chinese character
fc:the color value of Chinese character
bc:the background color of Chinese character
s:the start address of the Chinese character
mode:0-no overlying,1-overlying
* @retvalue :None
******************************************************************************/
void GUI_DrawFont16(uint16_t x, uint16_t y, uint16_t fc, uint16_t bc, uint8_t *s,uint8_t mode)
{
uint8_t i,j;
uint16_t k;
uint16_t HZnum;
uint16_t x0=x;
HZnum=sizeof(tfont16)/sizeof(typFNT_GB16); //自动统计汉字数目
for (k=0;k<HZnum;k++)
{
if ((tfont16[k].Index[0]==*(s))&&(tfont16[k].Index[1]==*(s+1)))
{ LCD_SetWindows(x,y,x+16-1,y+16-1);
for(i=0;i<16*2;i++)
{
for(j=0;j<8;j++)
{
if(!mode) //非叠加方式
{
if(tfont16[k].Msk[i]&(0x80>>j)) Lcd_WriteData_16Bit(fc);
else Lcd_WriteData_16Bit(bc);
}
else
{
POINT_COLOR=fc;
if(tfont16[k].Msk[i]&(0x80>>j)) LCD_DrawPoint(x,y);//画一个点
x++;
if((x-x0)==16)
{
x=x0;
y++;
break;
}
}
}
}
}
continue; //查找到对应点阵字库立即退出，防止多个汉字重复取模带来影响
}
LCD_SetWindows(0,0,lcddev.width-1,lcddev.height-1);//恢复窗口为全屏
}
/*****************************************************************************
* @name :void GUI_DrawFont24(uint16_t x, uint16_t y, uint16_t fc, uint16_t bc, uint8_t *s,uint8_t mode)
* @date :2018-08-09
* @function :Display a single 24x24 Chinese character
* @parameters :x:the bebinning x coordinate of the Chinese character
y:the bebinning y coordinate of the Chinese character
fc:the color value of Chinese character
bc:the background color of Chinese character
s:the start address of the Chinese character
mode:0-no overlying,1-overlying
* @retvalue :None
******************************************************************************/
void GUI_DrawFont24(uint16_t x, uint16_t y, uint16_t fc, uint16_t bc, uint8_t *s,uint8_t mode)
{
uint8_t i,j;
uint16_t k;
uint16_t HZnum;
uint16_t x0=x;
HZnum=sizeof(tfont24)/sizeof(typFNT_GB24); //自动统计汉字数目
for (k=0;k<HZnum;k++)
{
if ((tfont24[k].Index[0]==*(s))&&(tfont24[k].Index[1]==*(s+1)))
{ LCD_SetWindows(x,y,x+24-1,y+24-1);
for(i=0;i<24*3;i++)
{
for(j=0;j<8;j++)
{
if(!mode) //非叠加方式
{
if(tfont24[k].Msk[i]&(0x80>>j)) Lcd_WriteData_16Bit(fc);
else Lcd_WriteData_16Bit(bc);
}
else
{
POINT_COLOR=fc;
if(tfont24[k].Msk[i]&(0x80>>j)) LCD_DrawPoint(x,y);//画一个点
x++;
if((x-x0)==24)
{
x=x0;
y++;
break;
}
}
}
}
}
continue; //查找到对应点阵字库立即退出，防止多个汉字重复取模带来影响
}
LCD_SetWindows(0,0,lcddev.width-1,lcddev.height-1);//恢复窗口为全屏
}
/*****************************************************************************
* @name :void GUI_DrawFont32(uint16_t x, uint16_t y, uint16_t fc, uint16_t bc, uint8_t *s,uint8_t mode)
* @date :2018-08-09
* @function :Display a single 32x32 Chinese character
* @parameters :x:the bebinning x coordinate of the Chinese character
y:the bebinning y coordinate of the Chinese character
fc:the color value of Chinese character
bc:the background color of Chinese character
s:the start address of the Chinese character
mode:0-no overlying,1-overlying
* @retvalue :None
******************************************************************************/
void GUI_DrawFont32(uint16_t x, uint16_t y, uint16_t fc, uint16_t bc, uint8_t *s,uint8_t mode)
{
uint8_t i,j;
uint16_t k;
uint16_t HZnum;
uint16_t x0=x;
HZnum=sizeof(tfont32)/sizeof(typFNT_GB32); //自动统计汉字数目
for (k=0;k<HZnum;k++)
{
if ((tfont32[k].Index[0]==*(s))&&(tfont32[k].Index[1]==*(s+1)))
{ LCD_SetWindows(x,y,x+32-1,y+32-1);
for(i=0;i<32*4;i++)
{
for(j=0;j<8;j++)
{
if(!mode) //非叠加方式
{
if(tfont32[k].Msk[i]&(0x80>>j)) Lcd_WriteData_16Bit(fc);
else Lcd_WriteData_16Bit(bc);
}
else
{
POINT_COLOR=fc;
if(tfont32[k].Msk[i]&(0x80>>j)) LCD_DrawPoint(x,y);//画一个点
x++;
if((x-x0)==32)
{
x=x0;
y++;
break;
}
}
}
}
}
continue; //查找到对应点阵字库立即退出，防止多个汉字重复取模带来影响
}
LCD_SetWindows(0,0,lcddev.width-1,lcddev.height-1);//恢复窗口为全屏
}
/*****************************************************************************
* @name :void Show_Str(uint16_t x, uint16_t y, uint16_t fc, uint16_t bc, uint8_t *str,uint8_t size,uint8_t mode)
* @date :2018-08-09
* @function :Display Chinese and English strings
* @parameters :x:the bebinning x coordinate of the Chinese and English strings
y:the bebinning y coordinate of the Chinese and English strings
fc:the color value of Chinese and English strings
bc:the background color of Chinese and English strings
str:the start address of the Chinese and English strings
size:the size of Chinese and English strings
mode:0-no overlying,1-overlying
* @retvalue :None
******************************************************************************/
void Show_Str(uint16_t x, uint16_t y, uint16_t fc, uint16_t bc, uint8_t *str,uint8_t size,uint8_t mode)
{
uint16_t x0=x;
uint8_t bHz=0; //字符或者中文
while(*str!=0)//数据未结束
{
if(!bHz)
{
if(x>(lcddev.width-size/2)||y>(lcddev.height-size))
return;
if(*str>0x80)bHz=1;//中文
else //字符
{
if(*str==0x0D)//换行符号
{
y+=size;
x=x0;
str++;
}
else
{
if(size>16)//字库中没有集成12X24 16X32的英文字体,用8X16代替
{
LCD_ShowChar(x,y,fc,bc,*str,16,mode);
x+=8; //字符,为全字的一半
}
else
{
LCD_ShowChar(x,y,fc,bc,*str,size,mode);
x+=size/2; //字符,为全字的一半
}
}
str++;
}
}else//中文
{
if(x>(lcddev.width-size)||y>(lcddev.height-size))
return;
bHz=0;//有汉字库
if(size==32)
GUI_DrawFont32(x,y,fc,bc,str,mode);
else if(size==24)
GUI_DrawFont24(x,y,fc,bc,str,mode);
else
GUI_DrawFont16(x,y,fc,bc,str,mode);
str+=2;
x+=size;//下一个汉字偏移
}
}
}
/*****************************************************************************
* @name :void Gui_StrCenter(uint16_t x, uint16_t y, uint16_t fc, uint16_t bc, uint8_t *str,uint8_t size,uint8_t mode)
* @date :2018-08-09
* @function :Centered display of English and Chinese strings
* @parameters :x:the bebinning x coordinate of the Chinese and English strings
y:the bebinning y coordinate of the Chinese and English strings
fc:the color value of Chinese and English strings
bc:the background color of Chinese and English strings
str:the start address of the Chinese and English strings
size:the size of Chinese and English strings
mode:0-no overlying,1-overlying
* @retvalue :None
******************************************************************************/
void Gui_StrCenter(uint16_t x, uint16_t y, uint16_t fc, uint16_t bc, uint8_t *str,uint8_t size,uint8_t mode)
{
uint16_t len=strlen((const char *)str);
uint16_t x1=(lcddev.width-len*8)/2;
Show_Str(x1,y,fc,bc,str,size,mode);
}
/*****************************************************************************
* @name :void Gui_Drawbmp16(uint16_t x,uint16_t y,const unsigned char *p)
* @date :2018-08-09
* @function :Display a 16-bit BMP image
* @parameters :x:the bebinning x coordinate of the BMP image
y:the bebinning y coordinate of the BMP image
p:the start address of image array
* @retvalue :None
******************************************************************************/
void Gui_Drawbmp16(uint16_t x,uint16_t y,const unsigned char *p) //显示40*40 QQ图片
{
int i;
unsigned char picH,picL;
LCD_SetWindows(x,y,x+40-1,y+40-1);//窗口设置
for(i=0;i<40*40;i++)
{
picL=*(p+i*2); //数据低位在前
picH=*(p+i*2+1);
Lcd_WriteData_16Bit(picH<<8|picL);
}
LCD_SetWindows(0,0,lcddev.width-1,lcddev.height-1);//恢复显示窗口为全屏
}