Android dev/graphics/fb0 or dev/fb0 file data stored in the datalook like ? Is not binary

You master them , the program ape wrote a program such as titles from the read image data in two files , but with c after reading out the data returned to the java layer data found to be normal convert bitmap, appears to be the data in question . Ask the experts , from the above two documents read out data is not binary data , or is the other type of data. . Seek advice. dev/graphics/fb0 or dev/fb0 removed in the end what is inside the data . .
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data is raw data , which is stored in the data format and the format you want to convert is not the same , I was transformed into ARGB_8888 format , paste the code I deal

 获取屏幕大小：
 			DisplayMetrics metrics =new DisplayMetrics();
 			WindowManager WM = (WindowManager)this.getSystemService(Context.WINDOW_SERVICE);
 			Display display = WM.getDefaultDisplay();
 			display.getMetrics(metrics);
 			int height = metrics.heightPixels; //屏幕高
 			int width = metrics.widthPixels;    //屏幕的宽
 			
 //				获取显示方式
 			int pixelformat = display.getPixelFormat();
 			PixelFormat localPixelFormat1 =new PixelFormat();
 			PixelFormat.getPixelFormatInfo(pixelformat, localPixelFormat1);
 			int deepth = localPixelFormat1.bytesPerPixel;//位深
 			
 			InputStream stream =getInputStream();
 			byte[] piex = new byte[height * width * deepth];
 			DataInputStream dStream = new DataInputStream(stream);
 			int i=0;
 			while(dStream.read(piex, 0, height * width * deepth) != -1){
 				// 保存图片
 				int[] colors = new int[height * width];   
 				for(int m=0;m<piex.length;m++){
 					if(m%4 == 0){
 						int r = (piex[m] & 0xFF);
 						int g = (piex[m+1] & 0xFF);
 						int b = (piex[m+2] & 0xFF);
 						int a = (piex[m+3] & 0xFF);
 						colors[m/4]= (a << 24) + (r <<16) + (g <<8) + b;
 					}
 				}
 //		piex生成bitmap
 		Bitmap bitmap = Bitmap.createBitmap(colors, width, height, Bitmap.Config.ARGB_8888);
 				
 //		bitmap保存为png格式：
 		FileOutputStream out = new FileOutputStream("/mnt/sdcard/test"+x+".png");
 		bitmap.compress(Bitmap.CompressFormat.PNG, 100,out);
 

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er er. . Yes, I try . Thank you . . Sorry, did not reply for a long time , most recently in other busy . . Oh . .
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landlord realized it, I get is a black screen , seeking guidance
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I get is a black screen. . . .
------ reference --------------------------------------- < br> colors [m / 4] = (a << 24) + (r << 16) + (g << 8) + b;
If a black screen , then try their own change of the position of each value , or you can use a pure red and other colors to test which position is maintained by the r value
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Why do I get the picture , mess , and is part of , part of , you can not get the whole screen
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Guixie landlord ah. . !