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标题: Graphics.snap_to_bitmap 優化2版 [打印本页]
作者: danny8376    时间: 2008-12-1 03:12
标题: Graphics.snap_to_bitmap 優化2版
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. #==============================================================================

  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. #==============================================================================

  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
作者: 神思    时间: 2008-12-1 05:15
呵呵~不错~
把DC释放后就完美了
作者: danny8376    时间: 2008-12-4 08:01
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
作者: danny8376    时间: 2009-5-29 07:37
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= =
作者: 杨飞云    时间: 2009-5-29 07:46
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