Graphics.snap_to_bitmap 優化2版

danny8376

這個優化版
速度快了很多

而且把一些該釋放的釋放掉了

(作截圖存檔請自己找Bitmap的Marshal 找一下就有了)

1. #==============================================================================
   
2. # ■ Graphics.snap_to_bitmap 優化2版
   
3. #    原作者：神思
   
4. #    優化者：釣到一隻猴子@_@  (  AAM@_@  )
   
5. #==============================================================================
   
6. #==============================================================================
   
7. # ■ Graphics
   
8. #------------------------------------------------------------------------------
   
9. # 　进行有关全体图像处理的模块。
   
10. #   RMXP 版的 Graphics.snap_to_bitmap
    
11. #==============================================================================
    
12. 
    
13. class << Graphics
    
14. CreateDC = Win32API.new("gdi32", "CreateDC", "pppl", "l")
    
15. CreateCompatibleBitmap = Win32API.new("gdi32", "CreateCompatibleBitmap", "lll", "l")
    
16. CreateCompatibleDC = Win32API.new("gdi32", "CreateCompatibleDC", "l", "l")
    
17. SelectObject = Win32API.new("gdi32", "SelectObject", "ll", "l")
    
18. BitBlt = Win32API.new("gdi32", "BitBlt", "lllllllll", "l")
    
19. GetBitmapBits = Win32API.new("gdi32", "GetBitmapBits", "llp", "l")
    
20. ScreenToClient = Win32API.new("user32", "ScreenToClient", "ip", "i")
    
21. DeleteDC = Win32API.new("gdi32", "DeleteDC", "l", "l")
    
22. DeleteObject = Win32API.new("gdi32", "DeleteObject", "l", "l")
    
23. SRCCOPY = 0xCC0020
    
24. RtlMoveMemory = Win32API.new('kernel32', 'RtlMoveMemory', 'ipi', 'i')
    
25. HWnd = Win32API.new("user32", "GetActiveWindow", nil, 'l').call
    
26. DwCount = (640 * 480 * 4) * 2
    
27. @@lpBits = "\000" * DwCount
    
28. #--------------------------------------------------------------------------
    
29. # ● snap_to_bitmap
    
30. #   将当前画面转换为Bitmap对象
    
31. #--------------------------------------------------------------------------
    
32. def snap_to_bitmap
    
33.    width, height = 640,480
    
34.    hb = Bitmap.new(width, height)
    
35.    rgbs = self.bitmap_data
    
36.    len = width * 4
    
37.    for y in 0...height
    
38.      break if 2*y >= height - 1
    
39.      nth1 = y * len
    
40.      nth2 = (height - 1 - y) * len
    
41.      tStr = rgbs[nth1,len]
    
42.      rgbs[nth1, len] = rgbs[nth2, len]
    
43.      rgbs[nth2, len] = tStr
    
44.    end
    
45.    RtlMoveMemory.call(hb.address, rgbs, 640 * 480 * 4)
    
46.    return hb
    
47. end
    
48. #--------------------------------------------------------------------------
    
49. # ● bitmap_data
    
50. #   获取当前画面的数据部分```
    
51. #   RGB依然是调转过来了`= =``
    
52. #--------------------------------------------------------------------------
    
53. def bitmap_data
    
54.    hScrDC = CreateDC.call("DISPLAY", "", "", 0)
    
55.    hMemDC = CreateCompatibleDC.call(hScrDC)
    
56.    hBitmap = CreateCompatibleBitmap.call(hScrDC, 640, 480)
    
57.    hOldBitmap = SelectObject.call(hMemDC, hBitmap)
    
58.    BitBlt.call(hMemDC, xsrc, ysrc, 640*2, 480*2, hScrDC, 0, 0, SRCCOPY)
    
59.    hBitmap2 = SelectObject.call(hMemDC, hOldBitmap)
    
60.    GetBitmapBits.call(hBitmap2, DwCount, @@lpBits)
    
61.    DeleteDC.call(hScrDC)
    
62.    DeleteDC.call(hMemDC)
    
63.    DeleteObject.call(hBitmap)
    
64.    DeleteObject.call(hOldBitmap)
    
65.    DeleteObject.call(hBitmap2)
    
66.    return @@lpBits
    
67. end
    
68. #--------------------------------------------------------------------------
    
69. # ● 用户窗口的位置
    
70. #--------------------------------------------------------------------------
    
71. def xsrc
    
72.    return self.point[0]
    
73. end
    
74. #--------------------------------------------------------------------------
    
75. # ● 用户窗口的位置
    
76. #--------------------------------------------------------------------------
    
77. def ysrc
    
78.    return self.point[1]
    
79. end
    
80. #--------------------------------------------------------------------------
    
81. # ● 那个点`= =``
    
82. #--------------------------------------------------------------------------
    
83. def point
    
84.    point = [0,0].pack("LL")
    
85.    ScreenToClient.call(HWnd, point)
    
86.    return point.unpack("LL")
    
87. end
    
88. end
    
89. #==============================================================================
    
90. # ■ Bitmap
    
91. #------------------------------------------------------------------------------
    
92. # 　处理影像的类。
    
93. #==============================================================================
    
94. 
    
95. class Bitmap
    
96. RtlMoveMemory = Win32API.new('kernel32', 'RtlMoveMemory', 'pii', 'i')
    
97. #--------------------------------------------------------------------------
    
98. # ●
    
99. #--------------------------------------------------------------------------
    
100. def address
     
101.    # [[[bitmap.object_id * 2 + 16] + 8] + 16] == 数据的开头
     
102.    buffer, ad = "xxxx", object_id * 2 + 16
     
103.    RtlMoveMemory.call(buffer, ad, 4)
     
104.    ad = buffer.unpack("L")[0] + 8
     
105.    RtlMoveMemory.call(buffer, ad, 4)
     
106.    ad = buffer.unpack("L")[0] + 16
     
107.    RtlMoveMemory.call(buffer, ad, 4)
     
108.    return buffer.unpack("L")[0]
     
109. end
     
110. end
     

复制代码

神思

呵呵~不错~
把DC释放后就完美了

danny8376

以下引用神思于2008-11-30 21:15:38的发言：

呵呵~不错~ 把DC释放后就完美了

沒改到= =

不過速度慢(忽略set_pixel)是曼在圓腳本"\000" * dwCount
這處理時間超過0.1S

danny8376

以下引用神思于2008-11-30 21:15:38的发言：

呵呵~不错~ 把DC释放后就完美了

改好了  



托真久
都半年了= =