lcd_vga_640_480.c

三星S3C2410A板 The initial and control for 640×480 16Bpp TFT LCD----VGA

				{
					PutPixel(x1,y1,color);
					if(e>0){x1+=1;e-=dy;}	
					y1+=1;
					e+=dx;
				}
			}
		}
		else		   // dy<0
		{
			dy=-dy;   // dy=abs(dy)

			if(dx>=dy) // 8/8 octant
			{
				e=dy-dx/2;
				while(x1<=x2)
				{
					PutPixel(x1,y1,color);
					if(e>0){y1-=1;e-=dx;}	
					x1+=1;
					e+=dy;
				}
			}
			else		// 7/8 octant
			{
				e=dx-dy/2;
				while(y1>=y2)
				{
					PutPixel(x1,y1,color);
					if(e>0){x1+=1;e-=dy;}	
					y1-=1;
					e+=dx;
				}
			}
		}	
	}
	else //dx<0
	{
		dx=-dx;		//dx=abs(dx)
		if(dy >= 0) // dy>=0
		{
			if(dx>=dy) // 4/8 octant
			{
				e=dy-dx/2;
				while(x1>=x2)
				{
					PutPixel(x1,y1,color);
					if(e>0){y1+=1;e-=dx;}	
					x1-=1;
					e+=dy;
				}
			}
			else		// 3/8 octant
			{
				e=dx-dy/2;
				while(y1<=y2)
				{
					PutPixel(x1,y1,color);
					if(e>0){x1-=1;e-=dy;}	
					y1+=1;
					e+=dx;
				}
			}
		}
		else		   // dy<0
		{
			dy=-dy;   // dy=abs(dy)

			if(dx>=dy) // 5/8 octant
			{
				e=dy-dx/2;
				while(x1>=x2)
				{
					PutPixel(x1,y1,color);
					if(e>0){y1-=1;e-=dx;}	
					x1-=1;
					e+=dy;
				}
			}
			else		// 6/8 octant
			{
				e=dx-dy/2;
				while(y1>=y2)
				{
					PutPixel(x1,y1,color);
					if(e>0){x1-=1;e-=dy;}	
					y1-=1;
					e+=dx;
				}
			}
		}	
	}
}

/**************************************************************
在LCD屏幕上画一个矩形
**************************************************************/
extern void Glib_Rectangle(int x1,int y1,int x2,int y2, U16 color)
{
    Glib_Line(x1,y1,x2,y1,color);
    Glib_Line(x2,y1,x2,y2,color);
    Glib_Line(x1,y2,x2,y2,color);
    Glib_Line(x1,y1,x1,y2,color);
}

/**************************************************************
在LCD屏幕上用颜色填充一个矩形
**************************************************************/
extern void Glib_FilledRectangle(int x1,int y1,int x2,int y2, U16 color)
{
    int i;

    for(i=y1;i<=y2;i++)
	Glib_Line(x1,i,x2,i,color);
}

/**************************************************************
在LCD屏幕上指定坐标点画一个指定大小的图片
**************************************************************/
static void Paint_Bmp(int x0,int y0,int h,int l,unsigned char bmp[])
{
	int x,y;
	U32 c;
	int p = 0;
	
    for( y = 0 ; y < l ; y++ )
    {
    	for( x = 0 ; x < h ; x++ )
    	{
    		c = bmp[p+1] | (bmp[p]<<8) ;

			if ( ( (x0+x) < SCR_XSIZE_TFT_640480) && ( (y0+y) < SCR_YSIZE_TFT_640480) )
				LCD_BUFER[y0+y][x0+x] = c ;

    		p = p + 2 ;
    	}
    }
}

/**************************************************************
**************************************************************/
/*void Test_Lcd_VGA_640_480(void)
{
	#ifdef DEBUG
   	Uart_Printf("\nTest TFT LCD 640×480(VGA)!\n");
	#endif	

    Lcd_Port_Init();
    Lcd_Init();
    Lcd_EnvidOnOff(1);		//turn on vedio

*/
/*
	Lcd_ClearScr( (0x00<<11) | (0x00<<5) | (0x00)  )  ;		//clear screen
	Uart_Printf( "\nLCD clear screen is finished! press any key to continue!\n" );
    Uart_Getch() ;		//wait uart input

	Lcd_ClearScr( (0x1f<<11) | (0x3f<<5) | (0x1f)  )  ;		//clear screen
	Uart_Printf( "LCD clear screen is finished! press any key to continue!\n" );
    Uart_Getch() ;		//wait uart input

	Lcd_ClearScr( (0x00<<11) | (0x00<<5) | (0x1f)  )  ;		//clear screen
	Uart_Printf( "LCD clear screen is finished! press any key to continue!\n" );
    Uart_Getch() ;		//wait uart input

	Lcd_ClearScr( (0x00<<11) | (0x3f<<5) | (0x00)  )  ;		//clear screen
	Uart_Printf( "LCD clear screen is finished! press any key to continue!\n" );
    Uart_Getch() ;		//wait uart input

	Lcd_ClearScr( (0x1f<<11) | (0x00<<5) | (0x00)  )  ;		//clear screen
	Uart_Printf( "LCD clear screen is finished! press any key to continue!\n" );
    Uart_Getch() ;		//wait uart input

	Lcd_ClearScr( (0x00<<11) | (0x3f<<5) | (0x1f)  )  ;		//clear screen
	Uart_Printf( "LCD clear screen is finished! press any key to continue!\n" );
    Uart_Getch() ;		//wait uart input

	Lcd_ClearScr( (0x1f<<11) | (0x00<<5) | (0x1f)  )  ;		//clear screen
	Uart_Printf( "LCD clear screen is finished! press any key to continue!\n" );
    Uart_Getch() ;		//wait uart input

	Lcd_ClearScr( (0x1f<<11) | (0x3f<<5) | (0x00)  )  ;		//clear screen
	Uart_Printf( "LCD clear screen is finished! press any key to continue!\n" );
    Uart_Getch() ;		//wait uart input
  */  
/*	Lcd_ClearScr(0xffff);		//fill all screen with some color
	#define LCD_BLANK		30
	#define C_UP		( LCD_XSIZE_TFT_640480 - LCD_BLANK*2 )
	#define C_RIGHT		( LCD_XSIZE_TFT_640480 - LCD_BLANK*2 )
	#define V_BLACK		( ( LCD_YSIZE_TFT_640480 - LCD_BLANK*4 ) / 6 )
	Glib_FilledRectangle( LCD_BLANK, LCD_BLANK, ( LCD_XSIZE_TFT_640480 - LCD_BLANK ), ( LCD_YSIZE_TFT_640480 - LCD_BLANK ),0x0000);		//fill a Rectangle with some color

	Glib_FilledRectangle( (LCD_BLANK*2), (LCD_BLANK*2 + V_BLACK*0), (C_RIGHT), (LCD_BLANK*2 + V_BLACK*1),0x001f);		//fill a Rectangle with some color
	Glib_FilledRectangle( (LCD_BLANK*2), (LCD_BLANK*2 + V_BLACK*1), (C_RIGHT), (LCD_BLANK*2 + V_BLACK*2),0x07e0);		//fill a Rectangle with some color
	Glib_FilledRectangle( (LCD_BLANK*2), (LCD_BLANK*2 + V_BLACK*2), (C_RIGHT), (LCD_BLANK*2 + V_BLACK*3),0xf800);		//fill a Rectangle with some color
	Glib_FilledRectangle( (LCD_BLANK*2), (LCD_BLANK*2 + V_BLACK*3), (C_RIGHT), (LCD_BLANK*2 + V_BLACK*4),0xffe0);		//fill a Rectangle with some color
	Glib_FilledRectangle( (LCD_BLANK*2), (LCD_BLANK*2 + V_BLACK*4), (C_RIGHT), (LCD_BLANK*2 + V_BLACK*5),0xf81f);		//fill a Rectangle with some color
	Glib_FilledRectangle( (LCD_BLANK*2), (LCD_BLANK*2 + V_BLACK*5), (C_RIGHT), (LCD_BLANK*2 + V_BLACK*6),0x07ff);		//fill a Rectangle with some color
   	Uart_Printf( "LCD color test, please look! press any key to continue!\n" );
    Uart_Getch() ;		//wait uart input
*/
/*
    Paint_Bmp(0,0,640,480, girl0_640_480);		//paint a bmp
   	Uart_Printf( "LCD paint a bmp, please look! press any key to continue! \n" );
    Uart_Getch() ;		//wait uart input

    Paint_Bmp(0,0,640,480, girl1_640_480);		//paint a bmp
   	Uart_Printf( "LCD paint a bmp, please look! press any key to continue! \n" );
    Uart_Getch() ;		//wait uart input
    
    Paint_Bmp(0,0,640,480, flower1_640_480);		//paint a bmp
   	Uart_Printf( "LCD paint a bmp, please look! press any key to continue! \n" );
    Uart_Getch() ;		//wait uart input

    Paint_Bmp(0,0,640,480, girl2_640_480);		//paint a bmp
   	Uart_Printf( "LCD paint a bmp, please look! press any key to continue! \n" );
    Uart_Getch() ;		//wait uart input
*/
    //Paint_Bmp(0,0,640,480, girl3_640_480);		//paint a bmp
/*    Glib_Rectangle(10,10,100,100, 0x001f);
   	Uart_Printf( "LCD paint a Rectangle, please look! press any key to continue! \n" );
   	Uart_Printf( "ha ha!!!\n" );
    Uart_Getch() ;		//wait uart input
     Glib_Rectangle(200,200,400,400, 0x001f);
   	Uart_Printf( "LCD paint a Rectangle, please look! press any key to continue! \n" );
   	Uart_Printf( "ha ha!!!\n" );
    Uart_Getch() ;		//wait uart input

    Lcd_EnvidOnOff(0);		//turn on vedio
   	Lcd_Tft_240X320_Init() ;		//
}
*/
//*************************************************************
void WriteLcdMems( U32 off, U32 c ) 
{
       
    U32 x, y ; 
    
    y = off/640 ; x = off%640 ; 
    PutPixel(x,y,c);
    
    /*if(x<SCR_XSIZE_TFT_640480 && y<SCR_YSIZE_TFT_640480)
        LCD_BUFER[(y)][(x)/2]=( LCD_BUFER[(y)][x/2]
        & ~(0xffff0000>>((x)%2)*16) ) | ( (c&0x0000ffff)<<((2-1-((x)%2))*16) );*/
        
}