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Internet Message Format  |  1999-09-01  |  7KB
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  9. From: Rune Zedeler <rune@zedeler.dk>
  10. To: Andrew Crowe <amos-list@onelist.com>
  11. Date: Mon, 30 Aug 1999 01:45:39 +0100
  12. Message-ID: <yam7911.1969.138365576@mail010.worldonline.dk>
  13. In-Reply-To: <yam7909.1143.1196153096@mail.enterprise.net>
  14. X-Mailer: YAM 1.3.5 [040] - Amiga Mailer by Marcel Beck
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  22. Subject: Re: [amos-list] Re: Transparent Screen Copying
  23. Status: O
  24. X-Status: 
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  33. --BOUNDARY.7911.1969.138365576.3
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  36.  
  37. On 28-Aug-99, Andrew Crowe wrote:
  38.  
  39. >   Although, I was thinking, couldn't we use the blitter to cut the mask=
  40.  out
  41. >of the destination screen? I would've thought the blitter'd be good at d=
  42. oing
  43. >that kind of bitplane stuff?
  44.  
  45. Yes.
  46. But coding the blitter directly from withit AMOS is for some reason  very=
  47.  
  48. unstable (tried that, but some random blits will be done wrong).
  49. And if you use AMOS' built in commandos to do it, you have to do some ugl=
  50. y
  51. poking around in the screen base.
  52. Well. =
  53.  
  54. Been there, done that :)
  55.  
  56. I assume that Leek(Screen Base)=3DLogbase(0).
  57. If that in some future AMOS will not be the case, then the program will
  58. certainly crash. Use on your own risk.
  59. On '060 it is actually a bit slower than the old program, but as all work=
  60.  is
  61. done by the blitter then the speed should be the same on every Amiga. I g=
  62. uess
  63. the new program will be faster on everything else than '060.
  64. Replaced TMPBNK with TMPSCR.
  65.  
  66. Don't you think that the rest of the users on this list are getting tired=
  67.  of
  68. strange AMOS-programs being posted here...? Perhaps we should continue th=
  69. is
  70. off the list...?
  71.  
  72. -- =
  73.  
  74.  
  75.          /=AF\ __    __ /=AF=AF=AF=AF=AF\           _         Rune Zedele=
  76. r
  77. ________/ /// \\__/ \\\  ---/           \=AF-_      Rydev=E6nget 3,3th
  78. \      / //=AF|  \\/  ||=AF\ \\=AF=AF=AF=AF=AF=AF=AF=AF=AF=AF=AF=AF=AF=AF=
  79.    =AF-_   8210 =C5rhus V
  80.  )    / //  | \ ` / ||  \ \\ Lemmus of Efreet  -  Denmark
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  82. =AF=AF=AF=AF=AF\------'/||=AF=AF| \------'/           /_-=AF      rune@ze=
  83. deler.dk
  84.       =AF=AF=AF=AF=AF=AF\-'/  \-'/=AF=AF=AF=AF=AF=AF            =AF      =
  85.    Tel: +45-86750655
  86.              =AF=AF    =AF=AF
  87.  
  88. --BOUNDARY.7911.1969.138365576.3
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  143. ``
  144. end
  145. size 2213
  146.  
  147. --BOUNDARY.7911.1969.138365576.3--
  148.  
  149.