directdisplay.c

ucos-II+移植到arm+s3c2410的全套代码

{
         int i;
         pdc->PenColor=color1;
	  Direct_DrawRectFrame(pdc,left,top,right,bottom);
/*	  Direct_MoveTo(pdc,right,top);
	  Direct_LineTo( pdc, left, top);
	  Direct_LineTo( pdc, left, bottom);*/
	  pdc->PenColor=color2;
	  Direct_MoveTo(pdc, right+pdc->PenWidth, top+pdc->PenWidth);
	  Direct_LineTo(pdc, right+pdc->PenWidth, bottom+pdc->PenWidth);
	   Direct_LineTo(pdc,left+pdc->PenWidth, bottom+pdc->PenWidth); 
/*	   Direct_LineTo( pdc, right, bottom);
          Direct_LineTo( pdc, right, top);*/
	  
	  
}
void Direct_ArcTo1(PDC pdc, int x1, int y1, int R)
{
	int	delta, delta1, delta2, direction,x0,y0,dAB2,x2,y2;
	int tmpx,tmpy;
	double tmp;

	x2=pdc->DrawPointx;
	y2=pdc->DrawPointy;

	tmpx=x1-x2;
	tmpy=y1-y2;

	dAB2=tmpx*tmpx+tmpy*tmpy;

	if(dAB2==0)
		return;
	if(R*2>dAB2)
		return;

	tmp=sqrt(((double)R*R)/((double)dAB2)-0.25);

	if(R>0){//劣弧
		x0=(int)(0.5*(x1-x2)+tmp*(y1-y2)+x2);	//圆心坐标
		y0=(int)(0.5*(y1-y2)-tmp*(x1-x2)+y2);
	}
	else{	//优弧
		x0=(int)(0.5*(x1-x2)-tmp*(y1-y2)+x2);	//圆心坐标
		y0=(int)(0.5*(y1-y2)+tmp*(x1-x2)+y2);
	}
	
	x2-=x0;
	y2-=y0;
	x1-=x0;
	y1-=y0;

	delta=Getdelta1(x2,y2, R);

	while ( ABS(x1-x2)>1 || ABS(y1-y2)>1){
		Direct_SetPixel(pdc, x2+x0, y2+y0,pdc->PenColor);
		if(x2>0 && y2>0){	//第一象限
			if ( delta < 0 ){
				delta1 = 2 * ( delta + y2) - 1;
				if ( delta1 <= 0 )
					direction = 1;//选择H点
				else
					direction = 2;//选择D点
			}
			else if ( delta > 0 ){
				delta2 = 2 * ( delta - x2 ) - 1;
				if ( delta2 <= 0 )
					direction = 2;//选择D点
				else
					direction = 3;//选择V点
			}
			else	//选择D点
				direction = 2;
		}
		else if(x2<0 && y2>0){	//第二象限
			if ( delta < 0 ){
				delta1 = 2 * ( delta + y2) - 1;
				if ( delta1 <= 0 )
					direction = 1;//选择H点
				else
					direction = 8;//选择U点
			}
			else if ( delta > 0 ){
				delta2 = 2 * ( delta + x2 ) - 1;
				if ( delta2 <= 0 )
					direction = 8;//选择U点
				else
					direction = 7;//选择T点
			}
			else	//选择U点
				direction = 8;
		}
		else if(x2<0 && y2<0){	//第三象限
			if ( delta < 0 ){
				delta1 = 2 * ( delta - y2) - 1;
				if ( delta1 <= 0 )
					direction = 5;//选择R点
				else
					direction = 6;//选择S点
			}
			else if ( delta > 0 ){
				delta2 = 2 * ( delta + x2 ) - 1;
				if ( delta2 <= 0 )
					direction = 6;//选择S点
				else
					direction = 7;//选择T点
			}
			else	//选择S点
				direction = 6;
		}
		else if(x2>0 && y2<0){	//第四象限
			if ( delta < 0 ){
				delta1 = 2 * ( delta - y2) - 1;
				if ( delta1 <= 0 )
					direction = 5;//选择R点
				else
					direction = 4;//选择Q点
			}
			else if ( delta > 0 ){
				delta2 = 2 * ( delta - x2 ) - 1;
				if ( delta2 <= 0 )
					direction = 4;//选择Q点
				else
					direction = 3;//选择V点
			}
			else	//选择Q点
				direction = 4;
		}
		else{
			if(x2==0){
				if(y2>0)
					x2++;
				else
					x2--;
			}
			else{	//y2==0
				if(x2>0)
					y2--;
				else
					y2++;
			}
			delta=Getdelta1(x2,y2, R);
		}

		switch (direction)	{
		case 1:
			x2++;
			delta += 2 * ABS(x2) + 1;
			break;
		case 2:

			x2++;
			y2--;
			delta += 2 * ( ABS(x2) - ABS(y2) + 1);
			break;
		case 3:
			y2--;
			delta += ( -2 * ABS(y2) + 1 );
			break;
		case 4:
			x2--;
			y2--;
			delta += 2 * ( ABS(x2) - ABS(y2) + 1);
			break;
		case 5:
			x2--;
			delta += 2 * ABS(x2) + 1;
			break;
		case 6:
			x2--;
			y2++;
			delta += 2 * ( ABS(x2) - ABS(y2) + 1);
			break;
		case 7:
			y2++;
			delta += ( -2 * ABS(y2) + 1 );
			break;
		case 8:
			x2++;
			y2++;
			delta += 2 * ( ABS(x2) - ABS(y2) + 1);
			break;
		}
	}
}

void Direct_ArcTo2(PDC pdc, int x1, int y1, int R)
{	
	int	delta, delta1, delta2, direction,x0,y0,dAB2,x2,y2;
	int tmpx,tmpy;

	double tmp;

	x2=pdc->DrawPointx;
	y2=pdc->DrawPointy;

	tmpx=x1-x2;
	tmpy=y1-y2;

	dAB2=tmpx*tmpx+tmpy*tmpy;

	if(dAB2==0)
		return;
	if(R*2>dAB2)
		return;

	tmp=sqrt(((double)R*R)/((double)dAB2)-0.25);

	if(R>0){//劣弧
		x0=(int)(0.5*(x1-x2)-tmp*(y1-y2)+x2);	//圆心坐标
		y0=(int)(0.5*(y1-y2)+tmp*(x1-x2)+y2);
	}
	else{	//优弧
		x0=(int)(0.5*(x1-x2)+tmp*(y1-y2)+x2);	//圆心坐标
		y0=(int)(0.5*(y1-y2)-tmp*(x1-x2)+y2);
	}
	
	x2-=x0;
	y2-=y0;
	x1-=x0;
	y1-=y0;

	delta=Getdelta2(x2,y2, R);
	while ( ABS(x1-x2)>1 || ABS(y1-y2)>1){
		Direct_SetPixel(pdc, x2+x0, y2+y0,pdc->PenColor);
		if(x2>0 && y2>0){	//第一象限
			if ( delta < 0 ){
				delta1 = 2 * ( delta + y2) - 1;
				if ( delta1 <= 0 )
					direction = 5;//选择R点
				else
					direction = 6;//选择S点
			}
			else if ( delta > 0 ){
				delta2 = 2 * ( delta - x2 ) - 1;
				if ( delta2 <= 0 )
					direction = 6;//选择S点
				else
					direction = 7;//选择T点
			}
			else	//选择S点
				direction = 6;
		}
		else if(x2<0 && y2>0){	//第二象限
			if ( delta < 0 ){
				delta1 = 2 * ( delta + y2) - 1;
				if ( delta1 <= 0 )
					direction = 5;//选择R点
				else
					direction = 4;//选择Q点
			}
			else if ( delta > 0 ){
				delta2 = 2 * ( delta + x2 ) - 1;
				if ( delta2 <= 0 )
					direction = 4;//选择Q点
				else
					direction = 3;//选择V点
			}
			else	//选择Q点
				direction = 4;
		}
		else if(x2<0 && y2<0){	//第三象限
			if ( delta < 0 ){
				delta1 = 2 * ( delta - y2) - 1;
				if ( delta1 <= 0 )
					direction = 1;//选择H点
				else
					direction = 2;//选择D点
			}
			else if ( delta > 0 ){
				delta2 = 2 * ( delta + x2 ) - 1;
				if ( delta2 <= 0 )
					direction = 2;//选择D点
				else
					direction = 3;//选择V点
			}
			else	//选择D点
				direction = 2;
		}
		else if(x2>0 && y2<0){	//第四象限
			if ( delta < 0 ){
				delta1 = 2 * ( delta - y2) - 1;
				if ( delta1 <= 0 )
					direction = 1;//选择H点
				else
					direction = 8;//选择U点
			}
			else if ( delta > 0 ){
				delta2 = 2 * ( delta - x2 ) - 1;
				if ( delta2 <= 0 )
					direction = 8;//选择U点
				else
					direction = 7;//选择T点
			}
			else	//选择U点
				direction = 8;
		}
		else{
			if(x2==0){
				if(y2>0)
					x2--;
				else
					x2++;
			}
			else{	//y2==0
				if(x2>0)
					y2++;
				else
					y2--;
			}
			delta=Getdelta2(x2,y2, R);
		}
		switch (direction)	{
		case 1:
			x2++;
			delta += 2 * ABS(x2) + 1;
			break;
		case 2:
			x2++;
			y2--;
			delta += 2 * ( ABS(x2) - ABS(y2) + 1);
			break;
		case 3:
			y2--;
			delta += ( -2 * ABS(y2) + 1 );
			break;
		case 4:
			x2--;
			y2--;
			delta += 2 * ( ABS(x2) - ABS(y2) + 1);
			break;
		case 5:
			x2--;
			delta += 2 * ABS(x2) + 1;
			break;
		case 6:
			x2--;
			y2++;
			delta += 2 * ( ABS(x2) - ABS(y2) + 1);
			break;
		case 7:
			y2++;
			delta += ( -2 * ABS(y2) + 1 );
			break;

		case 8:
			x2++;
			y2++;
			delta += 2 * ( ABS(x2) - ABS(y2) + 1);
			break;
		}

	}
}
void Direct_ArcTo(PDC pdc, int x1, int y1, U8 arctype, int R)
{
	INT8U err;

	if(arctype){//逆圆
		ArcTo2(pdc,x1,y1,R);
	}
	else{	//顺圆
		ArcTo1(pdc,x1,y1,R);
	}
	pdc->DrawPointx=x1;
	pdc->DrawPointy=y1;
	
	
}

#if   COLORDEPTH_GRAY ==0    //单色模式
void mem8invcpy(U8 *dest, U8 *src, int n)
{
	for(;n>=0;n--){
		*((U8*)((((int)dest)&(~0x3))+3-(((int)src)&0x3)))=*src;
		dest++;
		src++;
	}
}
#endif

void Direct_ShowBmp(PDC pdc, char filename[], int x, int y)
{
	static U8 bmp[4096];
	int i,j,k,nbyte;
	U32 cx,cy;
	U32 color;
	OSFILE* pfile;
	U8 *pbmp;
	U8 *p;

	INT8U err;
	BITMAPFILEHEADER bmpfileheader;
	BITMAPINFOHEADER bmpinfoheader;

	if((pfile=OpenOSFile(filename, FILEMODE_READ))==NULL)
		return;

	ReadOSFile(pfile, (U8*)bmp, 2);

//	if((bmp[0]&0xffff)!='MB' )	//不是bmp文件
	if(bmp[0]!='B' ||bmp[1] !='M')
		return;

	ReadOSFile(pfile, (U8*)&bmpfileheader, sizeof(BITMAPFILEHEADER));
	ReadOSFile(pfile, (U8*)&bmpinfoheader, sizeof(BITMAPINFOHEADER));

	cx=bmpinfoheader.biWidth;
	cy=bmpinfoheader.biHeight;

#if   COLORDEPTH_GRAY ==0    //单色模式

	ReadOSFile(pfile, bmp, 8);

	p=(U8*)(pDirectLCDBuffer);
	p+=LCDWIDTH/8*y+x/8;
	if(bmpinfoheader.biBitCount==1){	//单色模式位图
		for(i=cy-1;i>=0;i--){
			pbmp=bmp;
			if(!ReadOSFile(pfile, bmp,cx/8))
				break;

			if(x%8==0){////x位于8的整数倍位置
				mem8invcpy(p+LCDWIDTH/8*i, bmp, cx/8);
			}
			else	{////x位于8的非整数倍位置

			}
		}
		goto showbmpend;
	}
	
#endif   

	nbyte=bmpinfoheader.biBitCount/8;

	for(i=cy-1;i>=0;i--){
		pbmp=bmp;
		if(!ReadOSFile(pfile, bmp,cx*nbyte+((cx*nbyte)%2)))
			break;
		for(j=0;j<cx;j++){
			color=*pbmp;
			
			for(k=0;k<nbyte-1;k++){
				pbmp++;
			       color+=*pbmp;
			}
			pbmp++;
                     color/=48;  
			
                     color=0x0000000f-color;
			

			 #if COLORDEPTH_GRAY==0
			 if(color>0x00000008)
			 	color=0x00000001;
			 else
			 	color=0;
		        #endif	 
			Direct_SetPixel(pdc,x+j, y+i, color);	
			

                    
		
		
			
		}
	}

showbmpend:
	CloseOSFile(pfile);
}

void Direct_Bmpcopy(U32 *pbmp,int width,int length)
{
       memcpy(pDirectLCDBuffer,pbmp,width*length/2);
}




void Direct_SetPixe_mono(PDC pdc, int x, int y, COLORREF color)
{


U32*  p;
p=pDirectLCDBuffer+x;
*p=1;



}
#endif

#endif //#if USE_MINIGUI==0