glib.c

三星2410源代码

void Glib_Rectangle(int x1,int y1,int x2,int y2,int 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);
}



void Glib_FilledRectangle(int x1,int y1,int x2,int y2,int color)
{
    int i;

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



// LCD display is flipped vertically
// But, think the algorithm by mathematics point.
//   3I2
//   4 I 1
//  --+--   <-8 octants  mathematical cordinate
//   5 I 8
//   6I7
void Glib_Line(int x1,int y1,int x2,int y2,int 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;
				}
			}
		}	
	}
}


void DisplayColorRBG()
{
	int i,j;

	for(j=0;j<800;j++)
			for(i=0;i<120;i++)
				PutPixel(j,i,0xff000000);
	for(j=0;j<800;j++)
			for(i=120;i<240;i++)
				PutPixel(j,i,0x00ff0000);
	for(j=0;j<800;j++)
			for(i=240;i<360;i++)
				PutPixel(j,i,0x0000ff00);
	for(j=0;j<800;j++)
			for(i=360;i<480;i++)
				PutPixel(j,i,0xffffffff);


}

void DisplayPicture()
{
	  unsigned long j,i,k,g,datapic,t_data1,t_data2,t_data3;

	         k=0;
	              for(j=0;j<150;j++)
			for(i=0;i<SCR_XSIZE_TFT_800480;i++)
				{
				t_data1=0x000000ff&pic[k];
				t_data2=0x000000ff&pic[k+1];
				t_data3=0x000000ff&pic[k+2];
				datapic=t_data1<<24|t_data2<<16|t_data3<<8;
				PutPixel(i,j,datapic);
					  k=k+3;	   }
		 k=0;
                        for(j=150;j<300;j++)
					  for(i=0;i<SCR_XSIZE_TFT_800480;i++)
						  {
						  t_data1=0x000000ff&pic[k];
						  t_data2=0x000000ff&pic[k+1];
						  t_data3=0x000000ff&pic[k+2];
						  datapic=t_data1<<24|t_data2<<16|t_data3<<8;
						  PutPixel(i,j,datapic);
								k=k+3;		 }
		k=0;
			 for(j=300;j<480;j++)
			for(i=0;i<SCR_XSIZE_TFT_800480;i++)
			{
				 t_data1=0x000000ff&pic[k];
				 t_data2=0x000000ff&pic[k+1];
				 t_data3=0x000000ff&pic[k+2];
				 datapic=t_data1<<24|t_data2<<16|t_data3<<8;
				 PutPixel(i,j,datapic);
				 k=k+3;		}





}

void DisplayPhotoFrame ()
{
	  unsigned long j,i,k,g,datapic,t_data1,t_data2,t_data3;
	  	for(j=0;j<SCR_YSIZE_TFT_800480;j++)
              for(i=0;i<SCR_XSIZE_TFT_800480;i++)
		        PutPixel(i,j,0xffffffff);
 
			for(j=1;j<479;j++)
			for(i=1;i<799;i++)
				{
				PutPixel(i,j,0x00000000);
					    }
	}

void Glib_ClearScr(U32 c, int type)
{	
    //Very inefficient function.
    int i,j;
    //if(type==MODE_TFT_24BIT_800480)
    if(type&0x8000)
	for(j=0;j<SCR_YSIZE_TFT_800480;j++)
            for(i=0;i<SCR_XSIZE_TFT_800480;i++)
		        PutPixel(i,j,c);
    //else if((type==MODE_TFT_1BIT_800600)|(type==MODE_TFT_8BIT_800600)|(type==MODE_TFT_16BIT_800600))
    else if((type&0x4000)&&(type&0x400))
	for(j=0;j<SCR_YSIZE_TFT_800600;j++)
            for(i=0;i<SCR_XSIZE_TFT_800600;i++)
		        PutPixel(i,j,c);
    //else if((type==MODE_TFT_1BIT_640480)|(type==MODE_TFT_8BIT_640480)|(type==MODE_TFT_16BIT_640480))
    else if((type&0x4000)&&(type&0x200))
	for(j=0;j<SCR_YSIZE_TFT_640480;j++)
            for(i=0;i<SCR_XSIZE_TFT_640480;i++)
		        PutPixel(i,j,c);