BOOL Test_GetAvailableVidMem (INT* passed, INT* failed)
{
	LPDIRECTDRAW7 DirectDraw;

	/* Preparations */
	if (DirectDrawCreateEx(NULL, (VOID**)&DirectDraw, IID_IDirectDraw7, NULL) != DD_OK)
	{
		printf("ERROR: Failed to set up ddraw\n");
		return FALSE;
	}

	/* Here we go */
	DWORD Total, Free;
	DDSCAPS2 Caps = { 0 };

	TEST (DirectDraw->GetAvailableVidMem(&Caps, NULL, NULL) == DDERR_INVALIDPARAMS);
	TEST (DirectDraw->GetAvailableVidMem(NULL, &Total, &Free) == DDERR_INVALIDPARAMS);
	TEST (DirectDraw->GetAvailableVidMem(&Caps, &Total, &Free) == DD_OK);

    /* testing caps */
	memset(&Caps,0,sizeof(DDSCAPS2));
	Caps.dwCaps = DDSCAPS_RESERVED1;
	TEST (DirectDraw->GetAvailableVidMem(&Caps, &Total, &Free) == DD_OK );

	memset(&Caps,0,sizeof(DDSCAPS2));
	Caps.dwCaps = DDSCAPS_ALPHA;
	TEST (DirectDraw->GetAvailableVidMem(&Caps, &Total, &Free) == DD_OK );

	memset(&Caps,0,sizeof(DDSCAPS2));
	Caps.dwCaps = DDSCAPS_BACKBUFFER;
	TEST (DirectDraw->GetAvailableVidMem(&Caps, &Total, &Free) == DDERR_INVALIDPARAMS );

	memset(&Caps,0,sizeof(DDSCAPS2));
	Caps.dwCaps = DDSCAPS_COMPLEX;
	TEST (DirectDraw->GetAvailableVidMem(&Caps, &Total, &Free) == DDERR_INVALIDPARAMS );

	memset(&Caps,0,sizeof(DDSCAPS2));
	Caps.dwCaps = DDSCAPS_FLIP;
	TEST (DirectDraw->GetAvailableVidMem(&Caps, &Total, &Free) == DDERR_INVALIDPARAMS );

	memset(&Caps,0,sizeof(DDSCAPS2));
	Caps.dwCaps = DDSCAPS_FRONTBUFFER;
	TEST (DirectDraw->GetAvailableVidMem(&Caps, &Total, &Free) == DDERR_INVALIDPARAMS );

	memset(&Caps,0,sizeof(DDSCAPS2));
	Caps.dwCaps = DDSCAPS_OFFSCREENPLAIN;
	TEST (DirectDraw->GetAvailableVidMem(&Caps, &Total, &Free) == DD_OK );

	memset(&Caps,0,sizeof(DDSCAPS2));
	Caps.dwCaps = DDSCAPS_OVERLAY;
	TEST (DirectDraw->GetAvailableVidMem(&Caps, &Total, &Free) == DD_OK );

	memset(&Caps,0,sizeof(DDSCAPS2));
	Caps.dwCaps = DDSCAPS_PALETTE;
	TEST (DirectDraw->GetAvailableVidMem(&Caps, &Total, &Free) == DDERR_INVALIDPARAMS );

	memset(&Caps,0,sizeof(DDSCAPS2));
	Caps.dwCaps = DDSCAPS_PRIMARYSURFACE;
	TEST (DirectDraw->GetAvailableVidMem(&Caps, &Total, &Free) == DD_OK );

	memset(&Caps,0,sizeof(DDSCAPS2));
	Caps.dwCaps = DDSCAPS_RESERVED3;
	TEST (DirectDraw->GetAvailableVidMem(&Caps, &Total, &Free) == DD_OK );

	memset(&Caps,0,sizeof(DDSCAPS2));
	Caps.dwCaps = DDSCAPS_SYSTEMMEMORY;
	TEST (DirectDraw->GetAvailableVidMem(&Caps, &Total, &Free) == DDERR_INVALIDPARAMS );

	memset(&Caps,0,sizeof(DDSCAPS2));
	Caps.dwCaps = DDSCAPS_TEXTURE;
	TEST (DirectDraw->GetAvailableVidMem(&Caps, &Total, &Free) == DD_OK );

	memset(&Caps,0,sizeof(DDSCAPS2));
	Caps.dwCaps = DDSCAPS_3DDEVICE;
	TEST (DirectDraw->GetAvailableVidMem(&Caps, &Total, &Free) == DD_OK );

	memset(&Caps,0,sizeof(DDSCAPS2));
	Caps.dwCaps = DDSCAPS_VIDEOMEMORY;
	TEST (DirectDraw->GetAvailableVidMem(&Caps, &Total, &Free) == DD_OK );

	memset(&Caps,0,sizeof(DDSCAPS2));
	Caps.dwCaps = DDSCAPS_VISIBLE;
	TEST (DirectDraw->GetAvailableVidMem(&Caps, &Total, &Free) == DDERR_INVALIDPARAMS );

	memset(&Caps,0,sizeof(DDSCAPS2));
	Caps.dwCaps = DDSCAPS_WRITEONLY;
	TEST (DirectDraw->GetAvailableVidMem(&Caps, &Total, &Free) == DDERR_INVALIDPARAMS );

	memset(&Caps,0,sizeof(DDSCAPS2));
	Caps.dwCaps = DDSCAPS_ZBUFFER;
	TEST (DirectDraw->GetAvailableVidMem(&Caps, &Total, &Free) == DD_OK );

	memset(&Caps,0,sizeof(DDSCAPS2));
	Caps.dwCaps = DDSCAPS_OWNDC;
	TEST (DirectDraw->GetAvailableVidMem(&Caps, &Total, &Free) == DDERR_INVALIDPARAMS );

	memset(&Caps,0,sizeof(DDSCAPS2));
	Caps.dwCaps = DDSCAPS_LIVEVIDEO;
	TEST (DirectDraw->GetAvailableVidMem(&Caps, &Total, &Free) == DD_OK );

	memset(&Caps,0,sizeof(DDSCAPS2));
	Caps.dwCaps = DDSCAPS_HWCODEC;
	TEST (DirectDraw->GetAvailableVidMem(&Caps, &Total, &Free) == DD_OK );

	memset(&Caps,0,sizeof(DDSCAPS2));
	Caps.dwCaps = DDSCAPS_MODEX;
	TEST (DirectDraw->GetAvailableVidMem(&Caps, &Total, &Free) == DD_OK );

	memset(&Caps,0,sizeof(DDSCAPS2));
	Caps.dwCaps = DDSCAPS_MIPMAP;
	TEST (DirectDraw->GetAvailableVidMem(&Caps, &Total, &Free) == DD_OK );

	memset(&Caps,0,sizeof(DDSCAPS2));
	Caps.dwCaps = DDSCAPS_RESERVED2;
	TEST (DirectDraw->GetAvailableVidMem(&Caps, &Total, &Free) == DD_OK );

	memset(&Caps,0,sizeof(DDSCAPS2));
	Caps.dwCaps = DDSCAPS_ALLOCONLOAD;
	TEST (DirectDraw->GetAvailableVidMem(&Caps, &Total, &Free) == DD_OK );

	memset(&Caps,0,sizeof(DDSCAPS2));
	Caps.dwCaps = DDSCAPS_VIDEOPORT;
	TEST (DirectDraw->GetAvailableVidMem(&Caps, &Total, &Free) == DD_OK );

	memset(&Caps,0,sizeof(DDSCAPS2));
	Caps.dwCaps = DDSCAPS_LOCALVIDMEM;
	TEST (DirectDraw->GetAvailableVidMem(&Caps, &Total, &Free) == DD_OK);

	memset(&Caps,0,sizeof(DDSCAPS2));
	Caps.dwCaps = DDSCAPS_NONLOCALVIDMEM;
	TEST (DirectDraw->GetAvailableVidMem(&Caps, &Total, &Free) == DD_OK);

	memset(&Caps,0,sizeof(DDSCAPS2));
	Caps.dwCaps2 = 0x01;
	TEST (DirectDraw->GetAvailableVidMem(&Caps, &Total, &Free) == DDERR_INVALIDCAPS);

	memset(&Caps,0,sizeof(DDSCAPS2));
	Caps.dwCaps2 = DDSCAPS2_RESERVED4;
	TEST (DirectDraw->GetAvailableVidMem(&Caps, &Total, &Free) == DD_OK);

	memset(&Caps,0,sizeof(DDSCAPS2));
	Caps.dwCaps2 = DDSCAPS2_HINTDYNAMIC;
	TEST (DirectDraw->GetAvailableVidMem(&Caps, &Total, &Free) == DD_OK);

	memset(&Caps,0,sizeof(DDSCAPS2));
	Caps.dwCaps2 = DDSCAPS2_HINTSTATIC;
	TEST (DirectDraw->GetAvailableVidMem(&Caps, &Total, &Free) == DD_OK);

	memset(&Caps,0,sizeof(DDSCAPS2));
	Caps.dwCaps2 = DDSCAPS2_TEXTUREMANAGE;
	TEST (DirectDraw->GetAvailableVidMem(&Caps, &Total, &Free) == DD_OK);

	memset(&Caps,0,sizeof(DDSCAPS2));
	Caps.dwCaps2 = DDSCAPS2_RESERVED1;
	TEST (DirectDraw->GetAvailableVidMem(&Caps, &Total, &Free) == DD_OK);

	memset(&Caps,0,sizeof(DDSCAPS2));
	Caps.dwCaps2 = DDSCAPS2_RESERVED2;
	TEST (DirectDraw->GetAvailableVidMem(&Caps, &Total, &Free) == DD_OK);

	memset(&Caps,0,sizeof(DDSCAPS2));
	Caps.dwCaps2 = DDSCAPS2_OPAQUE;
	TEST (DirectDraw->GetAvailableVidMem(&Caps, &Total, &Free) == DD_OK);

	memset(&Caps,0,sizeof(DDSCAPS2));
	Caps.dwCaps2 = DDSCAPS2_HINTANTIALIASING;
	TEST (DirectDraw->GetAvailableVidMem(&Caps, &Total, &Free) == DD_OK);

	memset(&Caps,0,sizeof(DDSCAPS2));
	Caps.dwCaps2 = DDSCAPS2_CUBEMAP;
	TEST (DirectDraw->GetAvailableVidMem(&Caps, &Total, &Free) == DD_OK);

	memset(&Caps,0,sizeof(DDSCAPS2));
	Caps.dwCaps2 = DDSCAPS2_CUBEMAP_POSITIVEX;
	TEST (DirectDraw->GetAvailableVidMem(&Caps, &Total, &Free) == DD_OK);

	memset(&Caps,0,sizeof(DDSCAPS2));
	Caps.dwCaps2 = DDSCAPS2_CUBEMAP_NEGATIVEX;
	TEST (DirectDraw->GetAvailableVidMem(&Caps, &Total, &Free) == DD_OK);

	memset(&Caps,0,sizeof(DDSCAPS2));
	Caps.dwCaps2 = DDSCAPS2_CUBEMAP_POSITIVEY;
	TEST (DirectDraw->GetAvailableVidMem(&Caps, &Total, &Free) == DD_OK);

	memset(&Caps,0,sizeof(DDSCAPS2));
	Caps.dwCaps2 = DDSCAPS2_CUBEMAP_NEGATIVEY;
	TEST (DirectDraw->GetAvailableVidMem(&Caps, &Total, &Free) == DD_OK);

	memset(&Caps,0,sizeof(DDSCAPS2));
	Caps.dwCaps2 = DDSCAPS2_CUBEMAP_POSITIVEZ;
	TEST (DirectDraw->GetAvailableVidMem(&Caps, &Total, &Free) == DD_OK);

	memset(&Caps,0,sizeof(DDSCAPS2));
	Caps.dwCaps2 = DDSCAPS2_CUBEMAP_NEGATIVEZ;
	TEST (DirectDraw->GetAvailableVidMem(&Caps, &Total, &Free) == DD_OK);

	memset(&Caps,0,sizeof(DDSCAPS2));
	Caps.dwCaps2 = DDSCAPS2_MIPMAPSUBLEVEL;
	TEST (DirectDraw->GetAvailableVidMem(&Caps, &Total, &Free) == DD_OK);

	memset(&Caps,0,sizeof(DDSCAPS2));
	Caps.dwCaps2 = DDSCAPS2_D3DTEXTUREMANAGE;
	TEST (DirectDraw->GetAvailableVidMem(&Caps, &Total, &Free) == DD_OK);

	memset(&Caps,0,sizeof(DDSCAPS2));
	Caps.dwCaps2 = DDSCAPS2_DONOTPERSIST;
	TEST (DirectDraw->GetAvailableVidMem(&Caps, &Total, &Free) == DD_OK);

	memset(&Caps,0,sizeof(DDSCAPS2));
	Caps.dwCaps2 = DDSCAPS2_STEREOSURFACELEFT;
	TEST (DirectDraw->GetAvailableVidMem(&Caps, &Total, &Free) == DD_OK);

	memset(&Caps,0,sizeof(DDSCAPS2));
	Caps.dwCaps2 = DDSCAPS2_VOLUME;
	TEST (DirectDraw->GetAvailableVidMem(&Caps, &Total, &Free) == DD_OK);

	memset(&Caps,0,sizeof(DDSCAPS2));
	Caps.dwCaps2 = DDSCAPS2_NOTUSERLOCKABLE;
	TEST (DirectDraw->GetAvailableVidMem(&Caps, &Total, &Free) == DD_OK);

	memset(&Caps,0,sizeof(DDSCAPS2));
	Caps.dwCaps2 = DDSCAPS2_POINTS;
	TEST (DirectDraw->GetAvailableVidMem(&Caps, &Total, &Free) == DD_OK);

	memset(&Caps,0,sizeof(DDSCAPS2));
	Caps.dwCaps2 =  DDSCAPS2_RTPATCHES;
	TEST (DirectDraw->GetAvailableVidMem(&Caps, &Total, &Free) == DD_OK);

	memset(&Caps,0,sizeof(DDSCAPS2));
	Caps.dwCaps2 = DDSCAPS2_NPATCHES;
	TEST (DirectDraw->GetAvailableVidMem(&Caps, &Total, &Free) == DD_OK);

	memset(&Caps,0,sizeof(DDSCAPS2));
	Caps.dwCaps2 = DDSCAPS2_RESERVED3;
	TEST (DirectDraw->GetAvailableVidMem(&Caps, &Total, &Free) == DD_OK);

	memset(&Caps,0,sizeof(DDSCAPS2));
	Caps.dwCaps2 = DDSCAPS2_DISCARDBACKBUFFER;
	TEST (DirectDraw->GetAvailableVidMem(&Caps, &Total, &Free) == DD_OK);

	memset(&Caps,0,sizeof(DDSCAPS2));
	Caps.dwCaps2 = DDSCAPS2_ENABLEALPHACHANNEL;
	TEST (DirectDraw->GetAvailableVidMem(&Caps, &Total, &Free) == DD_OK);

	memset(&Caps,0,sizeof(DDSCAPS2));
	Caps.dwCaps2 = DDSCAPS2_EXTENDEDFORMATPRIMARY;
	TEST (DirectDraw->GetAvailableVidMem(&Caps, &Total, &Free) == DD_OK);

	memset(&Caps,0,sizeof(DDSCAPS2));
	Caps.dwCaps2 = DDSCAPS2_ADDITIONALPRIMARY;
	TEST (DirectDraw->GetAvailableVidMem(&Caps, &Total, &Free) == DD_OK);

	memset(&Caps,0,sizeof(DDSCAPS2));
	Caps.dwCaps3 = ~(DDSCAPS3_MULTISAMPLE_QUALITY_MASK | DDSCAPS3_MULTISAMPLE_MASK | DDSCAPS3_RESERVED1 | DDSCAPS3_RESERVED2 | DDSCAPS3_LIGHTWEIGHTMIPMAP | DDSCAPS3_AUTOGENMIPMAP | DDSCAPS3_DMAP);
	TEST (DirectDraw->GetAvailableVidMem(&Caps, &Total, &Free) == DDERR_INVALIDCAPS);

	memset(&Caps,0,sizeof(DDSCAPS2));
	Caps.dwCaps3 = (DDSCAPS3_MULTISAMPLE_QUALITY_MASK | DDSCAPS3_MULTISAMPLE_MASK | DDSCAPS3_RESERVED1 | DDSCAPS3_RESERVED2 | DDSCAPS3_LIGHTWEIGHTMIPMAP | DDSCAPS3_AUTOGENMIPMAP | DDSCAPS3_DMAP);
	TEST (DirectDraw->GetAvailableVidMem(&Caps, &Total, &Free) == DD_OK);

	memset(&Caps,0,sizeof(DDSCAPS2));
	Caps.dwCaps4 = 1;
	TEST (DirectDraw->GetAvailableVidMem(&Caps, &Total, &Free) == DDERR_INVALIDCAPS );

	DirectDraw->Release();

	return TRUE;
}