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/*
* targavfd plugin for VDR (C++)
*
* (C) 2010 Andreas Brachold <vdr07 AT deltab de>
*
* This targavfd plugin is free software: you can redistribute it and/or
* modify it under the terms of the GNU General Public License as published
* by the Free Software Foundation, version 3 of the License.
*
* See the files README and COPYING for details.
*
*/
#include <vdr/tools.h>
#include "bitmap.h"
cVFDBitmap::cVFDBitmap(int w, int h) {
width = w;
height = h;
// lines are byte aligned
bytesPerLine = (width + 7) / 8;
bitmap = MALLOC(uchar, bytesPerLine * height);
clear();
}
cVFDBitmap::cVFDBitmap() {
height = 0;
width = 0;
bitmap = NULL;
}
cVFDBitmap::~cVFDBitmap() {
if(bitmap)
free(bitmap);
bitmap = NULL;
}
cVFDBitmap& cVFDBitmap::operator = (const cVFDBitmap& x) {
if(height != x.height
|| width != x.width
|| bitmap == NULL) {
if(bitmap)
free(bitmap);
bitmap = NULL;
height = x.height;
width = x.width;
bytesPerLine = (width + 7) / 8;
if(height && width)
bitmap = MALLOC(uchar, bytesPerLine * height);
}
if(x.bitmap)
memcpy(bitmap, x.bitmap, bytesPerLine * height);
return *this;
}
bool cVFDBitmap::operator == (const cVFDBitmap& x) const {
if(height != x.height
|| width != x.width
|| bitmap == NULL
|| x.bitmap == NULL)
return false;
return ((memcmp(x.bitmap, bitmap, bytesPerLine * height)) == 0);
}
void cVFDBitmap::clear() {
if (bitmap)
memset(bitmap, 0x00, bytesPerLine * height);
}
bool cVFDBitmap::SetPixel(int x, int y)
{
unsigned char c;
unsigned int n;
if (!bitmap)
return false;
if (x >= width || x < 0)
return false;
if (y >= height || y < 0)
return false;
n = x + ((y / 8) * width);
c = 0x80 >> (y % 8);
if(n >= (bytesPerLine * height))
return false;
bitmap[n] |= c;
return true;
}
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