lcd_vga_640_480.c

arm9.rar

			if(dx>=dy) // 1/8 octant
			{
				e=dy-dx/2;
				while(x1<=x2)
				{
					PutPixel(x1,y1,color);
					if(e>0){y1+=1;e-=dx;}	
					x1+=1;
					e+=dy;
				}
			}
			else		// 2/8 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) // 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
**************************************************************/
static 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
**************************************************************/
static 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 = y0 ; y < l ; y++ )
    {
    	for( x = x0 ; x < h ; x++ )
    	{
    		c = bmp[p+1] | (bmp[p]<<8) ;

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

    		p = p + 2 ;
    	}
    }
}

/**************************************************************
**************************************************************/
void Lcd_Port_Init( void );

void Test_Lcd_VGA_640_480(void)
{
	#ifdef DEBUG
    	printf("\nTest VGA 640×480 !\n");
	#endif	

	Lcd_Ctrl_Save();

    Lcd_Port_Init();
    Lcd_Init();
    Lcd_EnvidOnOff(1);		//turn on vedio
/*
	Lcd_ClearScr( (0x00<<11) | (0x00<<5) | (0x00)  )  ;		//clear screen
	printf( "\nLCD clear screen is finished! press any key to continue!\n" );
    getch() ;		//wait uart input

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

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

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

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

	Lcd_ClearScr( (0x1f<<11) | (0x3f<<5) | (0x00)  )  ;		//clear screen
	printf( "LCD clear screen is finished! press any key to continue!\n" );
    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
   	printf( "LCD color test, please look! press any key to continue!\n" );
    getch() ;		//wait uart input

	#ifdef DEBUG
    	printf( "\nrGPBCON=0x%x\n", rGPBCON );
    	printf( "\trGPBUP=0x%x\n", rGPBUP );
    	printf( "rGPCCON=0x%x\n", rGPCCON );
    	printf( "\trGPCUP=0x%x\n", rGPCUP );
    	printf( "rGPDCON=0x%x\n", rGPDCON );
    	printf( "\trGPDUP=0x%x\n", rGPDUP );
    	printf( "rGPGCON=0x%x\n", rGPGCON );
    	printf( "\trGPGUP=0x%x\n\n", rGPGUP );

    	printf( "rLCDCON1=0x%x\n", rLCDCON1 );
    	printf( "rLCDCON2=0x%x\n", rLCDCON2 );
    	printf( "rLCDCON3=0x%x\n", rLCDCON3 );
    	printf( "rLCDCON4=0x%x\n", rLCDCON4 );
    	printf( "rLCDCON5=0x%x\n\n", rLCDCON5 );

    	printf( "rLCDSADDR1=0x%x\n", rLCDSADDR1 );
    	printf( "rLCDSADDR2=0x%x\n", rLCDSADDR2 );
    	printf( "rLCDSADDR3=0x%x\n\n", rLCDSADDR3 );
    	
    	printf( "rLCDINTMSK=0x%x\n", rLCDINTMSK );
    	printf( "rLPCSEL=0x%x\n", rLPCSEL );
    	printf( "rTPAL=0x%x\n\n", rTPAL );
	#endif	

    Paint_Bmp(200,80,440,400, xyx_240_320);		//paint a bmp

   	printf( "LCD paint a bmp, please look! press any key to continue! \n" );
    getch() ;		//wait uart input

    Lcd_EnvidOnOff(0);		//turn on vedio
    
    Lcd_Ctrl_Restore();
}
//*************************************************************

static char Test_Lcd_VGA_640_480_Title[] = "VGA 640×480实验";
static char Test_Lcd_VGA_640_480_Tip[]   = "VGA 640×480显示实验,显示各种颜色及图片";


TEST_PROGRAM_ITEM Test_Lcd_VGA_640_480_Item = {
				(TEST_PROGRAM)Test_Lcd_VGA_640_480 , 
				Test_Lcd_VGA_640_480_Title , 
				Test_Lcd_VGA_640_480_Tip , 
				0};