pThisRow          684 ext/gd/libgd/gd_png.c 		int *pThisRow;
pThisRow          695 ext/gd/libgd/gd_png.c 			pThisRow = *ptpixels++;
pThisRow          697 ext/gd/libgd/gd_png.c 				thisPixel = *pThisRow++;