lcd_320x240.c

优龙开发板ＹＬ2410的bios完整代码

    }
}

/*-----------------------------------------------------------------------------
 *  LCD屏幕显示垂直翻转
 *  LCD display is flipped vertically
 *  But, think the algorithm by mathematics point.
 *    3I2
 *    4 I 1
 *   --+--   <-8 octants  mathematical cordinate
 *    5 I 8
 *    6I7
 */
static void Glib_Line(int x1, int y1, int x2, int y2, U16 color)
{
    int dx, dy, e;
    
    dx = x2 - x1; 
    dy = y2 - y1;
    
    if(dx >= 0)
    {
        if(dy >= 0)        // dy>=0
        {
            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++) {    // 用n条直线填满区域!
        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_320240) && ( (y0+y) < SCR_YSIZE_TFT_320240) )
                LCD_BUFER[y0+y][x0+x] = c ;
            
            p = p + 2 ;
        }
    }
}

/*-----------------------------------------------------------------------------
 *  test LTV350QV-F05
 */
void Test_Lcd_LTV350QVF05(void)
{
    int i;

    Lcd_Port_Init();
    Lcd_Init();
    Lcd_EnvidOnOff(1);

    Lcd_ClearScr( (0x00<<11) | (0x00<<5) | (0x00) );     //clear screen
    
  
//    Lcd_ClearScr(0xffff);       //fill all screen with some color
//    Glib_FilledRectangle(  50,  50,  270, 190, 0x0000);   //fill a Rectangle with some color
//    Glib_FilledRectangle( 100, 100,  220, 140, 0xf800);   //fill a Rectangle with some color
    
   #ifdef DEBUG
        Uart_Printf( "\nrGPBCON=0x%x\n", rGPBCON );
        Uart_Printf( "\trGPBUP=0x%x\n", rGPBUP );
        Uart_Printf( "rGPCCON=0x%x\n", rGPCCON );
        Uart_Printf( "\trGPCUP=0x%x\n", rGPCUP );
        Uart_Printf( "rGPDCON=0x%x\n", rGPDCON );
        Uart_Printf( "\trGPDUP=0x%x\n", rGPDUP );
        Uart_Printf( "rGPGCON=0x%x\n", rGPGCON );
        Uart_Printf( "\trGPGUP=0x%x\n\n", rGPGUP );
        
        Uart_Printf( "rLCDCON1=0x%x\n", rLCDCON1 );
        Uart_Printf( "rLCDCON2=0x%x\n", rLCDCON2 );
        Uart_Printf( "rLCDCON3=0x%x\n", rLCDCON3 );
        Uart_Printf( "rLCDCON4=0x%x\n", rLCDCON4 );
        Uart_Printf( "rLCDCON5=0x%x\n\n", rLCDCON5 );
        
        Uart_Printf( "rLCDSADDR1=0x%x\n", rLCDSADDR1 );
        Uart_Printf( "rLCDSADDR2=0x%x\n", rLCDSADDR2 );
        Uart_Printf( "rLCDSADDR3=0x%x\n\n", rLCDSADDR3 );
        
        Uart_Printf( "rLCDINTMSK=0x%x\n", rLCDINTMSK );
        Uart_Printf( "rLPCSEL=0x%x\n", rLPCSEL );
        Uart_Printf( "rTPAL=0x%x\n\n", rTPAL );
    #endif

    //LOGO

	Glib_FilledRectangle(0, 0, 320, 35, 0x0);
	Delay(50);
	Glib_FilledRectangle( 5, 35, 315, 40, 0xf800);	//Red,top
	Glib_FilledRectangle(10, 40, 310, 45, 0x07e0);	//Green,top
	Glib_FilledRectangle(15, 45, 305, 50, 0x001f);	//Blue,top

	Delay(50);
	Glib_FilledRectangle( 5, 37, 9, 200, 0xf800);	//Red,left
	Glib_FilledRectangle(10, 45, 15, 195, 0x07e0);	//Green,left
	Glib_FilledRectangle(16, 50, 20, 190, 0x001f);	//Blue,left

	Delay(50);
	Glib_FilledRectangle(311, 40, 315, 200, 0xf800);	//Red,right
	Glib_FilledRectangle(305, 45, 310, 195, 0x07e0);	//Green,right
	Glib_FilledRectangle(300, 50, 304, 190, 0x001f);	//Blue,right

	Delay(50);
	Paint_Bmp(20, 50, 280, 190, uCdragon_logo);			//picture
	Delay(50);
	
	Glib_FilledRectangle( 5, 200, 315, 206, 0xf800);	//Red,button
	Glib_FilledRectangle( 10,195, 310, 200, 0x07e0);	//Green,button
	Glib_FilledRectangle( 16,190, 304, 195, 0x001f);	//Blue,button

	Glib_FilledRectangle(0, 206, 320, 240, 0x0);
   
}

/* the lcd_240x320.c end */