68 lines
1.5 KiB
C
68 lines
1.5 KiB
C
/* dvdisaster: Additional error correction for optical media.
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* Copyright (C) 2004-2017 Carsten Gnoerlich.
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*
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* Email: carsten@dvdisaster.org -or- cgnoerlich@fsfe.org
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* Project homepage: http://www.dvdisaster.org
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*
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* This file is part of dvdisaster.
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*
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* dvdisaster is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* dvdisaster is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with dvdisaster. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "dvdisaster.h"
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/***
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*** A simple bitmap structure
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***/
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/*
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* Allocate the bitmap
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*/
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Bitmap* CreateBitmap0(int size)
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{ Bitmap *bm = g_malloc(sizeof(Bitmap));
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bm->size = size;
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bm->words = (size>>5)+1;
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bm->bitmap = g_malloc0(bm->words*sizeof(guint32));
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return bm;
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}
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/*
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* Free it
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*/
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void FreeBitmap(Bitmap *bm)
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{ if(bm->bitmap)
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g_free(bm->bitmap);
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g_free(bm);
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}
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/*
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* Count the '1' bits in the bitmap
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*/
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gint32 CountBits(Bitmap *bm)
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{ gint32 i;
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gint32 sum = 0;
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for(i=0; i<bm->size; i++)
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if(GetBit(bm, i))
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sum++;
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return sum;
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}
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