逐行扫描型Memory LCD显存管理与emWin移植

因为Memory LCD 的特性，不能设置像素坐标，只能用缓存整体刷新。

所以对于Memory LCD来说，emWin移植仅与打点函数有关，这里用Sharp Memory LCD（ls013b7dh03）作为实例。

//LCD的显存，逐行扫描
//存放格式如下.
//[0]0 1 2 3 ... 16   
//[1]0 1 2 3 ... 16   
//[2]0 1 2 3 ... 16   
//[3]0 1 2 3 ... 16   
//[4]0 1 2 3 ... 16   
//[5]0 1 2 3 ... 16   
//[6]0 1 2 3 ... 16   
//[7]0 1 2 3 ... 16

...

//[127]0 1 2 3 ... 16

#define OLED_MAX_X 128
#define OLED_MAX_Y 128
#define LINE (128)
#define LINE_SIZE (16)
static char LCD_GRAM[LINE][LINE_SIZE];

 

void lcd_drawpoint(uint16_t x,uint16_t y,bool bDraw){
    
 uint16_t pos,bx,tmp;

  if(x>OLED_MAX_X-1||y>OLED_MAX_Y-1)
    return;
  pos=15-y/8;
  bx=y%8;
    tmp=1<<(bx);
  if(bDraw)
     LCD_GRAM[x][pos]|= tmp;
    else
     LCD_GRAM[x][pos]&= ~tmp; 
    
}

void lcd_fillRect(uint16_t x,uint16_t y,uint16_t w,uint16_t h,bool bDraw)
{
  uint16_t wi,hi;
  for(hi=0;hi<h;hi++){
   for(wi=0;wi<w;wi++)
      lcd_drawpoint(x+wi,y+hi,bDraw);
  }
}

void lcd_fillRectByXY(uint16_t x0,uint16_t y0,uint16_t x1,uint16_t y1,bool bDraw)
{
   uint16_t xStart=0,yStart=0;
   uint16_t w,h;
   
   if(x0<x1){
     xStart=x0;
     w=x1-x0+1;
   }else{
     xStart=x1;
     w=x0-x1+1;
   }
   
   if(y0<y1){
     yStart=y0;
     h=y1-y0+1;
   }else{
      yStart=y1;
      h=y0-y1+1;
   }
   lcd_fillRect(xStart,yStart,w,h,bDraw);
   
}

uint32_t lcd_getpoint(uint16_t x,uint16_t y)
{
}