display.c

在移植成功ucos核的基础上扩充了该操作系统的许多没有功能。如文件系统

					SetPixel(pdc,i,y+j,pdc->PenColor);
				}
			}
		}
		else{
			for(i=pdc->DrawPointx+pdc->PenWidth/2;i>=x-(pdc->PenWidth-1)/2;i--){
				for(j=-(pdc->PenWidth-1)/2;j<=pdc->PenWidth/2;j++){
					SetPixel(pdc,i,y+j,pdc->PenColor);
				}
			}
		}
		pdc->DrawPointx=x;
		if(pdc->bUpdataBuffer){
			OSMboxPost(LCDFresh_MBox,(void*)1);	//刷新LCD
		}
		OSSemPost(Lcd_Disp_Sem);
		return;
	}
	
	for(i=-(pdc->PenWidth-1)/2;i<=pdc->PenWidth/2;i++){
		x1=pdc->DrawPointx+(i+1)/2;
		x2=x+(i+1)/2;
		y1=(pdc->DrawPointx-x)*i/2/(y-pdc->DrawPointy)+pdc->DrawPointy;
		y2=(pdc->DrawPointx-x)*i/2/(y-pdc->DrawPointy)+y;
		DrawSBresenham_Line(pdc,x1,y1,x2,y2);
	}

	pdc->DrawPointx=x;
	pdc->DrawPointy=y;
	if(pdc->bUpdataBuffer)
		OSMboxPost(LCDFresh_MBox,(void*)1);	//刷新LCD

	OSSemPost(Lcd_Disp_Sem);
}

void Buffer_MoveTo(PDC pdc, int x, int y)
{
	pdc->DrawPointx=x;
	pdc->DrawPointy=y;
}

U8 SetPenWidth(PDC pdc, U8 width)
{
	U8 oldpenwidth=pdc->PenWidth;
	pdc->PenWidth=width;
	return oldpenwidth;
}

void Buffer_DrawRectFrame(PDC pdc, int left,int top ,int right, int bottom)
{
	U8 oldupMode=pdc->bUpdataBuffer;

	pdc->bUpdataBuffer=FALSE;
	MoveTo(pdc,left,top);
	LineTo(pdc,left,bottom);
	LineTo(pdc,right,bottom);
	LineTo(pdc,right,top);
	pdc->bUpdataBuffer=oldupMode;
	LineTo(pdc,left,top);
}

void Buffer_DrawRectFrame2(PDC pdc, structRECT *rect)
{
	DrawRectFrame(pdc,rect->left,rect->top ,rect->right,rect->bottom);
}


void Buffer_FillRect(PDC pdc, int left,int top ,int right, int bottom,U32 DrawMode, U32 color)
{
	int i,j;
	INT8U err;

	OSSemPend(Lcd_Disp_Sem,0, &err);
	for(i=left;i<=right;i++){
		for(j=top;j<=bottom;j++)
			SetPixel(pdc,i,j,color);
	}
	OSSemPost(Lcd_Disp_Sem);

	if(pdc->bUpdataBuffer)
		OSMboxPost(LCDFresh_MBox,(void*)1);	//刷新LCD
}

void Buffer_FillRect2(PDC pdc, structRECT *rect,U32 DrawMode, U32 color)
{
	FillRect(pdc, rect->left,rect->top ,rect->right,rect->bottom,DrawMode,color);
}

void Buffer_ClearScreen()
{
	PDC pdc;
	pdc=CreateDC();

	FillRect(pdc,0,0,LCDWIDTH-1,LCDHEIGHT-1,GRAPH_MODE_NORMAL,COLOR_WHITE);

	DestoryDC(pdc);
}

U32 SetPenMode(PDC pdc, U32 mode)
{
	U32 oldMode=pdc->PenMode;
	pdc->PenMode=mode;
	return oldMode;
}

void Buffer_Circle(PDC pdc, int x0, int y0, int r)
{

	int x,y,delta,delta1,delta2,direction;
	INT8U err;
	x=0;	y=r;
	delta=2*(1-r);

	OSSemPend(Lcd_Disp_Sem, 0, &err);
	while(y>=0){
		SetPixel(pdc, x0+x,y0+y, pdc->PenColor);
		SetPixel(pdc, x0+x,y0-y, pdc->PenColor);
		SetPixel(pdc, x0-x,y0+y, pdc->PenColor);
		SetPixel(pdc, x0-x,y0-y, pdc->PenColor);
		if(delta<0){
			delta1=2*(delta+y)-1;
			if(delta1<=0)
				direction=1;
			else
				direction=2;
		}
		else if(delta>0){
			delta2=2*(delta-x)-1;
			if(delta2<=0)
				direction=2;
			else
				direction=3;
		}
		else
			direction=2;
		switch(direction){
		case 1:
			x++;
			delta+=2*x+1;
			break;
		case 2:
			x++;
			y--;
			delta+=2*(x-y+1);
			break;
		case 3:
			y--;
			delta+=-2*y+1;
			break;
		}
	}
	OSSemPost(Lcd_Disp_Sem);
	
	if(pdc->bUpdataBuffer)
		OSMboxPost(LCDFresh_MBox,(void*)1);	//刷新LCD
}

int Getdelta1(int x0,int y0, int R)
{
	int delta;

	if(x0>0 && y0>0)	//第一象限
		delta = x0-y0+1;
	else if(x0<0 && y0>0)	//第二象限
		delta = x0+y0+1;
	else if(x0<0 && y0<0)	//第三象限
		delta = -x0+y0+1;
	else if(x0>0 && y0<0)	//第四象限
		delta = -x0-y0+1;
	else
		delta = -ABS(R)+1;

	delta*=2;

	return delta;
}

int Getdelta2(int x0,int y0, int R)
{
	int delta;

	if(x0>0 && y0>0)	//第一象限
		delta = -x0+y0+1;
	else if(x0<0 && y0>0)	//第二象限
		delta = -x0-y0+1;
	else if(x0<0 && y0<0)	//第三象限
		delta = x0-y0+1;
	else if(x0>0 && y0<0)	//第四象限
		delta = x0+y0+1;
	else
		delta = -ABS(R)+1;

	delta*=2;

	return delta;
}

//画顺圆
void Buffer_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){
		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;
		}
	}
}

//画逆圆
void Buffer_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){
		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;
		}
//		OSMboxPost(LCDFresh_MBox,(void*)1);	//刷新LCD
//		OSTimeDly(100);
	}
}

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

	OSSemPend(Lcd_Disp_Sem, 0, &err);

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

	if(pdc->bUpdataBuffer)
		OSMboxPost(LCDFresh_MBox,(void*)1);	//刷新LCD
}

U8 SetLCDUpdata(PDC pdc, U8 isUpdata)
{
	U8 old=pdc->bUpdataBuffer;
	pdc->bUpdataBuffer=isUpdata;

	return old;
}

void Buffer_Draw3DRect(PDC pdc, int left,int top, int right, int bottom, COLORREF color1, COLORREF color2)
{
	int i;
	INT8U err;

	OSSemPend(Lcd_Disp_Sem, 0, &err);
	////绘制左右边框
	for(i=top;i<=bottom;i++){
		SetPixel(pdc, left,i, color1);
		SetPixel(pdc,right,i, color2);
	}
	////绘制上下边框
	for(i=left;i<=right;i++){
		SetPixel(pdc, i,top,color1);
		SetPixel(pdc,i,bottom, color2);
	}
	OSSemPost(Lcd_Disp_Sem);

	if(pdc->bUpdataBuffer)
		OSMboxPost(LCDFresh_MBox,(void*)1);	//刷新LCD
}

void Draw3DRect2(PDC pdc, structRECT *rect, COLORREF color1, COLORREF color2)
{
	Draw3DRect(pdc, rect->left,rect->top,rect->right,rect->bottom,color1,color2);
}

U8 GetPenWidth(PDC pdc)
{
	return pdc->PenWidth;
}

U32 GetPenMode(PDC pdc)
{
	return pdc->PenMode;
}

U32 SetPenColor(PDC pdc, U32 color)
{
	U32 old=pdc->PenColor;
	pdc->PenColor=color;
	return old;
}

U32 GetPenColor(PDC pdc)
{
	return pdc->PenColor;
}

void GetBmpSize(char filename[], int* Width, int *Height)
{
	BITMAPFILEHEADER bmpfileheader;
	BITMAPINFOHEADER bmpinfoheader;
	static char bmp[1024];
	FILE* pfile;
	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));

	*Width=bmpinfoheader.biWidth;
	*Height=bmpinfoheader.biHeight;
}


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

	INT8U err;