int Cutbit::get_pixel(const int fx, const int fy,
const int px, const int py) const
{
// Frame oder Pixel pro Frame nicht existent
if (fx < 0 || fy < 0 || fx >= x_frames || fy >= y_frames
|| px < 0 || py < 0 || px >= xl || py >= yl) return -1;
// Ansonsten liefere Farbe
else if (x_frames == 1 && y_frames == 1)
return _getpixel16(bitmap, px, py);
else return _getpixel16(bitmap, fx * (xl+1) + 1 + px,
fy * (yl+1) + 1 + py);
}
int Bitmap::GetPixel(int x, int y) const
{
if (x < 0 || x >= _alBitmap->w || y < 0 || y >= _alBitmap->h)
{
return -1; // Allegros getpixel() implementation returns -1 in this case
}
switch (bitmap_color_depth(_alBitmap))
{
case 8:
return _getpixel(_alBitmap, x, y);
case 15:
return _getpixel15(_alBitmap, x, y);
case 16:
return _getpixel16(_alBitmap, x, y);
case 24:
return _getpixel24(_alBitmap, x, y);
case 32:
return _getpixel32(_alBitmap, x, y);
}
assert(0); // this should not normally happen
return getpixel(_alBitmap, x, y);
}
