Method loadBdy

src/Engine/Surface.cpp:334–381

* Loads the contents of a TFTD BDY image file into * the surface. BDY files are compressed with a custom * algorithm. * @param filename Filename of the BDY image. * @sa http://www.ufopaedia.org/index.php?title=Image_Formats#BDY */

 * @sa http://www.ufopaedia.org/index.php?title=Image_Formats#BDY
 */
void Surface::loadBdy(const std::string &filename)
{
	// Load file and put pixels in surface
	std::ifstream imgFile (filename.c_str(), std::ios::in | std::ios::binary);
	if (!imgFile)
	{
		throw Exception(filename + " not found");
	}

	// Lock the surface
	lock();

	Uint8 dataByte;
	int pixelCnt;
	int x = 0, y = 0;
	int currentRow = 0;

	while (imgFile.read((char*)&dataByte, sizeof(dataByte)))
	{
		if (dataByte >= 129)
		{
			pixelCnt = 257 - (int)dataByte;
			imgFile.read((char*)&dataByte, sizeof(dataByte));
			currentRow = y;
			for (int i = 0; i < pixelCnt; ++i)
			{
				if (currentRow == y) // avoid overscan into next row
					setPixelIterative(&x, &y, dataByte);
			}
		}
		else
		{
			pixelCnt = 1 + (int)dataByte;
			currentRow = y;
			for (int i = 0; i < pixelCnt; ++i)
			{
				imgFile.read((char*)&dataByte, sizeof(dataByte));
				if (currentRow == y) // avoid overscan into next row
					setPixelIterative(&x, &y, dataByte);
			}
		}
	}

	// Unlock the surface
	unlock();

	imgFile.close();
}


/**