Spicy Chicken GDI in C #

1.Draw Directly XXXX ...

2.Memory + DrawImage XXX > 5fps

3.Memory + BitBlt XX > 15fps

usingSystem;usingSystem.Collections.Generic;usingSystem.Drawing;usingSystem.Drawing.Drawing2D;usingSystem.Linq;namespaceyozora{ Public structDot { Public floatX, Y;  Public floatVx, Vy;  Public floatRadius;  Publiccolor color; StaticRandom random =NewRandom ((int) DateTime.Now.ToBinary ());  PublicDot (intWidthintheight, color color) {X= (float) Random. Nextdouble () *width; Y= (float) Random. Nextdouble () *height; Vx= -0.5f+ (float) Random.            Nextdouble (); Vy= -0.5f+ (float) Random.            Nextdouble (); Radius= (float) Random. Nextdouble () *2; Color=color; }    }     Public classDotmgr {Privatedot[] Dot_array_; //The width of lines        PrivateInt32 b_ =1; //The quanlity of Dots        Private floatD_ =0.2f; //The origin and bitmap graphics        PrivateGraphics Dst_g_, Mmr_g_; //        PrivateBitmap m_; //width        PrivateInt32 W_ =1920x1080; //Height        PrivateInt32 H_ = -; //The limit of FPS        PrivateInt32 f_ = -; //The quanlity of stars        Private floatS_ =0.2f; //The lines of stars        PrivateInt32 L_ =5; PrivateIntPtr mmr_dc_ =IntPtr.Zero; PrivateIntPtr dst_dc_ =IntPtr.Zero;  Public BOOLOK =true;  PublicINF Init (Graphics g, Int32 width, Int32 height, Int32 frame,floatStarsfloatdots) {Dst_g_=G; W_=width; H_=height; F_=frame; S_=stars; D_=dots; M_=NewBitmap (W_, H_); Mmr_g_=graphics.fromimage (m_); Dst_g_.            Clear (Color.Black); Mmr_dc_=Mmr_g_.            GetHdc (); Dst_dc_=Dst_g_.            GetHdc (); Mmr_g_.            RELEASEHDC (); return NewINF (0,"success Init."); }         Public voidcreatedots () {} Publicinf Drawstar () {inf inf=NewINF (2,"Start Drawing"); Mmr_g_. FillRectangle (NewSolidBrush (Color.FromArgb (255,0,0,0)),0,0, W_, H_);            Int32 x, Y, R1, R2; Int32 Angle= the/L_; Int32 L= L_ *2; Point[] Star=Newpoint[l+1];            Color color;            Pen p; Random Rnd=NewRandom ();  for(Int32 i =0; I < w_ * S_; ++i) {x= rnd. Next (Ten, W_-Ten); Y= rnd. Next (Ten, H_-Ten); // ?R1 = rnd. Next (4,7); R2= rnd. Next (8, A); Color= Color.FromArgb ( -, Rnd. Next (1,254), Rnd. Next (1,254), Rnd. Next (1,254)); P=NewPen (color, b_);  for(Int32 j =0; J < L +1; ++j) {Star[j]. X= Convert.ToInt32 (Math.Round (j%2==0? (x + r1 * Math.Cos (J *3.14159/L_)): (x + r2 * Math.Cos (J *3.14159/L_)),2, Midpointrounding.awayfromzero)); STAR[J]. Y= Convert.ToInt32 (Math.Round (j%2==0? (Y + r1 * Math.sin (J *3.14159/L_)): (Y + r2 * Math.sin (J *3.14159/L_)),2, Midpointrounding.awayfromzero)); } mmr_g_.                DrawLines (P, star); if(Rnd. Next (0, -) > -) Mmr_g_. FillPolygon (NewSolidBrush (color), star); } OK=true;
Spciy Chicken W32. SelectObject (Mmr_dc_, m_.            Gethbitmap ()); W32. BitBlt (DST_DC_,0,0, W_, H_, MMR_DC_,0,0, W32.            SRCCOPY); return NewINF (1,"Draw successfully!"); }            }}

Spicy Chicken GDI in C #