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Re: drawing an array of pixels to the screen
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Re: drawing an array of pixels to the screen


  • Subject: Re: drawing an array of pixels to the screen
  • From: Erik Buck <email@hidden>
  • Date: Mon, 12 Nov 2007 06:38:59 -0800 (PST)

There seems to be some confusion.

  In C, the following two arrays are interchangeable:

  int   twoDArray[100][500];
  int   oneDArray[100 * 500];

  Both occupy the same amount of memory.  They can be cast back and forth harmlessly.  Both are of the following assignments are legal and meaningful:

  int   *array = twoDArray;
  int   *array = oneDArray;

  Both styles of array decalartion are usable with -initWithBitmapDataPlanes:pixelsWide:pixelsHigh:bitsPerSample:samplesPerPixel:hasAlpha:isPlanar:colorSpaceName:bitmapFormat:bytesPerRow:bitsPerPixel
  and with openGL.



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