IntArrayBitMatrix - simple int array-based implementation of BitMatrix [1033661]

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JavaX fragment (include) [tags: use-pretranspiled]

persistable sclass IntArrayBitMatrix extends AbstractMatrix<Bool> is BitMatrix {
  int[] data;
  
  *(int *w, int *h) { data = new int[arrayLength()]; }
  *(int *w, int *h, int[] *data) {}
  
  int arrayLength() { ret (w*h+31)/32; }
  static int arrayLength(int w, int h) { ret (w*h+31)/32; }

  public Bool get(int x, int y) {
    try {
      ret getBitFromIntArray_littleEndian(data, y*w+x);
    } catch e {
      fail(e, "Access out of bounds", +x, +y, +w, +h);
    }
  }
  
  public void set(int x, int y, Bool a default true) { setBitInIntArray_littleEndian(data, y*w+x, a); }
}

Author comment

Began life as a copy of #1033581

Travelled to 4 computer(s): bhatertpkbcr, ekrmjmnbrukm, mowyntqkapby, mqqgnosmbjvj

Snippet ID:

#1033661

Snippet name:

IntArrayBitMatrix - simple int array-based implementation of BitMatrix

Eternal ID of this version:

#1033661/5

Text MD5:

73f99e5a2b91abe5e06e828ff942d4b5

Transpilation MD5:

b13ab7b69fdfca594bd7ddfd0d4bd608

Author:

stefan

Category:

javax

Type:

JavaX fragment (include)

Public (visible to everyone):

Yes

Archived (hidden from active list):

Created/modified:

2022-01-06 23:15:26

Source code size:

601 bytes / 19 lines

Pitched / IR pitched:

No / No

Views / Downloads:

141 / 249

Version history:

4 change(s)

Referenced in:

[show references]

1	persistable sclass IntArrayBitMatrix extends AbstractMatrix<Bool> is BitMatrix {
2	int[] data;
3
4	(int w, int *h) { data = new int[arrayLength()]; }
5	(int w, int h, int[] data) {}
6
7	int arrayLength() { ret (w*h+31)/32; }
8	static int arrayLength(int w, int h) { ret (w*h+31)/32; }
9
10	public Bool get(int x, int y) {
11	try {
12	ret getBitFromIntArray_littleEndian(data, y*w+x);
13	} catch e {
14	fail(e, "Access out of bounds", +x, +y, +w, +h);
15	}
16	}
17
18	public void set(int x, int y, Bool a default true) { setBitInIntArray_littleEndian(data, y*w+x, a); }
19	}