////by?fanxiushu?2018-03-08

#include?
#include?“stdio.h“
#include?“vcamera.h“

HINSTANCE?g_hInstance;
////
BOOL?APIENTRY?DllMain（HINSTANCE?hInstance?DWORD?dwReason?LPVOID?lpReserved）
{
	g_hInstance?=?hInstance;
	if?（dwReason?==?DLL_PROCESS_ATTACH）?{
		////
		DisableThreadLibraryCalls（hInstance）;
	}
	
	////
	return?TRUE;
}

//////
//下面從我的?虛擬USB攝像頭的例子工程copy

////?RGB?->?YUV?從網絡查詢的算法
void?rgb24_yuy2（void*?rgb?void*?yuy2?int?width?int?height）
{
	int?R1?G1?B1?R2?G2?B2?Y1?U1?Y2?V1;
	unsigned?char*?pRGBData?=?（unsigned?char?*）rgb;
	unsigned?char*?pYUVData?=?（unsigned?char?*）yuy2;

	for?（int?i?=?0;?i	{
		for?（int?j?=?0;?j		{
			B1?=?*（pRGBData?+?（height?-?i?-?1）*width?*?3?+?j?*?6）;
			G1?=?*（pRGBData?+?（height?-?i?-?1）*width?*?3?+?j?*?6?+?1）;
			R1?=?*（pRGBData?+?（height?-?i?-?1）*width?*?3?+?j?*?6?+?2）;
			B2?=?*（pRGBData?+?（height?-?i?-?1）*width?*?3?+?j?*?6?+?3）;
			G2?=?*（pRGBData?+?（height?-?i?-?1）*width?*?3?+?j?*?6?+?4）;
			R2?=?*（pRGBData?+?（height?-?i?-?1）*width?*?3?+?j?*?6?+?5）;

			Y1?=?（（66?*?R1?+?129?*?G1?+?25?*?B1?+?128）?>>?8）?+?16;
			U1?=?（（（-38?*?R1?-?74?*?G1?+?112?*?B1?+?128）?>>?8）?+?（（-38?*?R2?-?74?*?G2?+?112?*?B2?+?128）?>>?8））?/?2?+?128;
			Y2?=?（（66?*?R2?+?129?*?G2?+?25?*?B2?+?128）?>>?8）?+?16;
			V1?=?（（（112?*?R1?-?94?*?G1?-?18?*?B1?+?128）?>>?8）?+?（（112?*?R2?-?94?*?G2?-?18?*?B2?+?128）?>>?8））?/?2?+?128;

			*（pYUVData?+?i*width?*?2?+?j?*?4）?=?max（min（Y1?255）?0）;
			*（pYUVData?+?i*width?*?2?+?j?*?4?+?1）?=?max（min（U1?255）?0）;
			*（pYUVData?+?i*width?*?2?+?j?*?4?+?2）?=?max（min（Y2?255）?0）;
			*（pYUVData?+?i*width?*?2?+?j?*?4?+?3）?=?max（min（V1?255）?0）;
		}
	}
}

////////////////////
struct?vcam_param
{
	HBITMAP?hbmp;
	HDC?hdc;
	void*?rgb_data;

	int?width;
	int?height;
	const?char*?text;
	int?i_color;
	int???????????clr_flip;
	int???????????i_size;
	int???????????sz_flip;
};
int?create_dib（vcam_param*?p?int?w?int?h）
{
	if?（p->width?==?w?&&?p->height?==?h?&&?p->hbmp）?return?0;
	////
	if?（p->hbmp）Deleteobject（p->hbmp）;
	if?（p->hdc）DeleteDC（p->hdc）;
	p->hbmp?=?0;?p->hdc?=?0;
	p->hdc?=?CreateCompatibleDC（NULL）;

	BITMAPINFOHEADER?bi;?memset（&bi?0?sizeof（bi））;
	bi.biSize?=?sizeof（bi）;
	bi.biWidth?=?w;
	bi.biHeight?=?h;
	bi.biPlanes?=?1;
	bi.biBitCount?=?24;?//RGB
	bi.biCompression?=?BI_RGB;
	bi.biSizeImage?=?0;


	p->hbmp?=?CreateDIBSection（p->hdc?（BITMAPINFO*）&bi?DIB_RGB_COLORS?&p->rgb_data?NULL?0）;
	if?（!p->hbmp）?{
		p->rgb_data?=?0;
		printf（“CreateDIBSection?err=%d\n“?GetLastError（））;
		return?-1;
	}
	Selectobject（p->hdc?p->hbmp）;?///
								???////
	p->width?=?w;
	p->height?=?h;

	p->clr_flip?=?1;
	p->i_color?=?0;

	p->i_size?=?20;
	p->sz_flip?=?2;?///

	return?0;
}
void?draw_text（vcam_param*?p）
{
	if?（!p->hbmp）return;
	////
	int?len?=?p->width*p->height?*?3;?//
	memset（p->rgb_data?p->i_color?len）;?///?背景色漸變
	p->i_color?+=?p->clr_flip;
	if?（p->i_color?<

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2018-07-17?13:14??vcam_dshow-master\
?????文件?????????636??2018-07-17?13:14??vcam_dshow-master\README.txt
?????目錄???????????0??2018-07-17?13:14??vcam_dshow-master\bin\
?????文件???????????0??2018-07-17?13:14??vcam_dshow-master\bin\.mkdir
?????文件?????????233??2018-07-17?13:14??vcam_dshow-master\bin\register.bat
?????文件?????????216??2018-07-17?13:14??vcam_dshow-master\bin\unregister.bat
?????文件??????124928??2018-07-17?13:14??vcam_dshow-master\bin\vcam_dshow.dll
?????目錄???????????0??2018-07-17?13:14??vcam_dshow-master\source\
?????文件???????????0??2018-07-17?13:14??vcam_dshow-master\source\.mkdir
?????目錄???????????0??2018-07-17?13:14??vcam_dshow-master\source\src\
?????文件???????????0??2018-07-17?13:14??vcam_dshow-master\source\src\.mkdir
?????文件????????4271??2018-07-17?13:14??vcam_dshow-master\source\src\main.cpp
?????文件???????11631??2018-07-17?13:14??vcam_dshow-master\source\src\vcam_dshow.h
?????文件???????22475??2018-07-17?13:14??vcam_dshow-master\source\src\vcam_stream.cpp
?????文件???????13899??2018-07-17?13:14??vcam_dshow-master\source\src\vcamera.cpp
?????文件?????????165??2018-07-17?13:14??vcam_dshow-master\source\src\vcamera.def
?????文件?????????367??2018-07-17?13:14??vcam_dshow-master\source\src\vcamera.h
?????文件????????1301??2018-07-17?13:14??vcam_dshow-master\source\vcam_dshow.sln
?????文件????????8323??2018-07-17?13:14??vcam_dshow-master\source\vcam_dshow.vcxproj
?????文件????????1505??2018-07-17?13:14??vcam_dshow-master\source\vcam_dshow.vcxproj.filters
?????文件?????????643??2018-07-17?13:14??vcam_dshow-master\source\vcam_dshow.vcxproj.user
?????文件???????55744??2018-07-17?13:14??vcam_dshow-master\vcam_dshow.png