Function Cl2BlitSafe

Source/engine.cpp:1104–1173

* @brief Blit CL2 sprite to the given buffer * @param pDecodeTo The output buffer * @param pRLEBytes CL2 pixel stream (run-length encoded) * @param nDataSize Size of CL2 in bytes * @param nWidth Width of sprite */

 * @param nWidth Width of sprite
 */
void Cl2BlitSafe(BYTE *pDecodeTo, BYTE *pRLEBytes, int nDataSize, int nWidth)
{
	int w;
	char width;
	BYTE fill;
	BYTE *src, *dst;

	src = pRLEBytes;
	dst = pDecodeTo;
	w = nWidth;

	while (nDataSize) {
		width = *src++;
		nDataSize--;
		if (width < 0) {
			width = -width;
			if (width > 65) {
				width -= 65;
				nDataSize--;
				fill = *src++;
				if (dst < gpBufEnd && dst > gpBufStart) {
					w -= width;
					while (width) {
						*dst = fill;
						dst++;
						width--;
					}
					if (!w) {
						w = nWidth;
						dst -= BUFFER_WIDTH + w;
					}
					continue;
				}
			} else {
				nDataSize -= width;
				if (dst < gpBufEnd && dst > gpBufStart) {
					w -= width;
					while (width) {
						*dst = *src;
						src++;
						dst++;
						width--;
					}
					if (!w) {
						w = nWidth;
						dst -= BUFFER_WIDTH + w;
					}
					continue;
				} else {
					src += width;
				}
			}
		}
		while (width) {
			if (width > w) {
				dst += w;
				width -= w;
				w = 0;