【基于富瀚6630使用fb2、mice驱动和TDE模块实现鼠标功能】

mice部分，读取鼠标坐标、识别鼠标双击单击

al_mouse_init()//鼠标模块初始化

unsigned char imps2_param [] = {243,200,243,100,243,80};

int fd = open("/dev/input/mice", O_RDWR);
if (fd > 0)
{
	sMouseFD = fd;
	//初始化鼠标,这样可以读取4个字节数据,byte[3]为正表示向下滚动,负向上
	write(fd, imps2_param, sizeof (imps2_param));

	//清空鼠标数据
	_clean_mouse(fd);
}
else
{
	printf("open %s fail\n", "mouseName");
}
LxrMouse_Param_t param={0};
param.mouseName = "";
param.xArea = 0;
param.yArea = 0;
param.wArea = 1920;//屏幕宽高
param.hArea = 1080;
param.tmDoubleclickMS = 400;
param.tmLongClickMS = 1*1000;

memset(&sStatus, 0, sizeof(sStatus));
memcpy(&sParam, &param, sizeof(sParam));

_read_mouse()识别单击还是双击

static  long long doubleclick = -1; //双击生效的绝对时间
static  int doubleX = -1;			//双击的 第一次点击坐标
static  int doubleY = -1;
static  long long longClick = -1;	//长按生效的绝对时间
 long long now=0;
static LxrMouse_t oldMouse ;
static bool haveOld = false;

if (haveOld)
{
	haveOld = false;
	memcpy(mouse, &oldMouse, sizeof(oldMouse));
	return 0;
}

int ret = __jvmouse_read_one(mouse, timeoutMS);
now = arch_getSystemStartupMs();

if (ret < 0)
{
    //读取鼠标驱动出错时才会进来
	if (sStatus.bLBtnDown)
	{
		if (now >= longClick)
		{
			mouse->key = LxrMOUSE_LBTN_LONG;
			mouse->pos = sCurPos;
			longClick = -1;
			return 0;
		}
	}
}
else
{
	if (mouse->key == LxrMOUSE_LBTN_DOWN)
	{
		if (doubleclick != -1 && now < doubleclick)	//检查双击时间
		{
			//检查双击坐标。两次点击的坐标偏差不能超过2
			JRect_t oldRect;
			oldRect.x = (doubleX > 2) ? (doubleX - 2) : 0;
			oldRect.y = (doubleY > 2) ? (doubleY - 2) : 0;
			oldRect.w = 4;
			oldRect.h = 4;
			
			if(__IsPtInRect(mouse->pos, oldRect))
			{
				oldMouse = *mouse;
				oldMouse.key = LxrMOUSE_LBTN_DOUBLE;
				haveOld = true;
				doubleclick = -1;
				longClick = -1;
				doubleX = -1;
				doubleY = -1;
				//printf("lBtn double\n");
			}
		}

		if(!haveOld)
		{
			doubleclick = now + (sParam.tmDoubleclickMS);//400ms
			longClick = now + (sParam.tmLongClickMS);//1000ms
			doubleX = mouse->pos.x;
			doubleY = mouse->pos.y;
		}

	}
}

__base_jvmouse_read()识别鼠标xy坐标、左键、右键、滚轮事件

TDE绘制鼠标图标模块

 open("/dev/fb2", O_RDWR, 0)打开显示驱动
 FY_MPI_VO_GetVideoLayerAttr(SAMPLE_VO_LAYER_VSD0, &stLayerAttr)获取显示图层信息
 ioctl(fd, FBIOPUT_SHOW_FYFB, &bShow)关闭显示
 ioctl(fd, FBIOPUT_SCREEN_ORIGIN_FYFB, &stPoint设置fb2坐标
 ioctl(fd, FBIOGET_VSCREENINFO, &var)获取fb2信息
 ioctl(fd, FBIOPUT_VSCREENINFO, &var)
 mmap(FY_NULL, fix.smem_len, PROT_READ|PROT_WRITE, MAP_SHARED, fd, 0)映射fb2虚拟地址，然后进行数据缓存清除动作
 ioctl(fd, FBIOPUT_SHOW_FYFB, &bShow)开启显示
 FY_MPI_SYS_MmzAlloc(&stSrc.u32PhyAddr, &pVirAddr, "ui_cur", NULL, 64*64*byteDep)申请mmz内存，存放图片数据

TDE_CreateSurfaceFromFile(CURSOR_NAME, &stSrc, pVirAddr)读取图片数据

    //跳过头
    fseek(fp, 54, SEEK_SET);

	for(i=0; i<32; i++)
	{
		unsigned char *dcBuf = pu8Virt + (32-i-1)*64;//先跳到最尾部、读一行数据 32为图片宽高 64为RGB1555一行的字节数

		if (1)
		{
			
//			printf("convert now\n");
			unsigned int ptemp[4096];
			fread(ptemp, 1, 64*2, fp);//RGB8888一个像素4个字节  stride = 32*4  =64*2  
			if(1)
			{
				int j;
				Pix_t *p = (Pix_t *)dcBuf; //两字节 
				for(j=0; j<32; j++)//32 * 2 字节  128 = RGB1555 1个像素2个字节
				{
					if(ptemp[j] == 0){
						p[j] = 32768;
                    }
					else
					{
						p[j] = __ARGB8888To1555(ptemp[j]);
					}
				}
			}
		}

	}

 FY_TDE2_Open()打开TDE
 FY_TDE2_QuickResize()开始绘画渲染
 FY_TDE2_EndJob
 ioctl(fd, FBIOPUT_COLORKEY_FYFB, &stColorKey)
 ioctl(fd, FBIOPUT_ALPHA_FYFB, &stAlpha)设置不透明度
 ioctl(fd, FBIOPUT_SCREEN_ORIGIN_FYFB, &stPoint)根据xy坐标去改变鼠标图标位置

效果图

源码下载

点这点这~~~~~